sdl-ios-xcode: src/video/SDL_renderer

annotate src/video/SDL_renderer_gl.c @ 5153:1435f8a6425c

Nobody is currently maintaining the QNX code, so removing it for now.

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 01 Feb 2011 21:40:03 -0800
parents	be02be2ea897
children

rev	line source
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
3697 f7b03b6838cb Fixed bug #926 Sam Lantinga <slouken@libsdl.org> parents: 3685 diff changeset	3 Copyright (C) 1997-2010 Sam Lantinga
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Lesser General Public License for more details.
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free Software
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 #include "SDL_config.h"
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1928 diff changeset	24 #if SDL_VIDEO_RENDER_OGL
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	25
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	26 #include "SDL_video.h"
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	27 #include "SDL_opengl.h"
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	28 #include "SDL_sysvideo.h"
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	29 #include "SDL_pixels_c.h"
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	30 #include "SDL_rect_c.h"
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	31 #include "SDL_yuv_sw_c.h"
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32
2246 75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO Sam Lantinga <slouken@libsdl.org> parents: 2237 diff changeset	33 #ifdef __MACOSX__
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO Sam Lantinga <slouken@libsdl.org> parents: 2237 diff changeset	34 #include <OpenGL/OpenGL.h>
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO Sam Lantinga <slouken@libsdl.org> parents: 2237 diff changeset	35 #endif
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO Sam Lantinga <slouken@libsdl.org> parents: 2237 diff changeset	36
2778 38dfc890ee6b Preliminary support for YUV textures Sam Lantinga <slouken@libsdl.org> parents: 2328 diff changeset	37
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 /* OpenGL renderer implementation */
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39
2230 9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	40 /* Details on optimizing the texture path on Mac OS X:
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	41 http://developer.apple.com/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_texturedata/chapter_10_section_2.html
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	42 */
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	43
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	44 /* !!! FIXME: this should go in a higher level than the GL renderer. */
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	45 static __inline__ int
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	46 bytes_per_pixel(const Uint32 format)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	47 {
2839 f89700cc9272 Progress, maybe. :) Sam Lantinga <slouken@libsdl.org> parents: 2836 diff changeset	48 if (!SDL_ISPIXELFORMAT_FOURCC(format)) {
f89700cc9272 Progress, maybe. :) Sam Lantinga <slouken@libsdl.org> parents: 2836 diff changeset	49 return SDL_BYTESPERPIXEL(format);
f89700cc9272 Progress, maybe. :) Sam Lantinga <slouken@libsdl.org> parents: 2836 diff changeset	50 }
f89700cc9272 Progress, maybe. :) Sam Lantinga <slouken@libsdl.org> parents: 2836 diff changeset	51
f89700cc9272 Progress, maybe. :) Sam Lantinga <slouken@libsdl.org> parents: 2836 diff changeset	52 /* FOURCC format */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	53 switch (format) {
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	54 case SDL_PIXELFORMAT_YV12:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	55 case SDL_PIXELFORMAT_IYUV:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	56 case SDL_PIXELFORMAT_YUY2:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	57 case SDL_PIXELFORMAT_UYVY:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	58 case SDL_PIXELFORMAT_YVYU:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	59 return 2;
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	60 default:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	61 return 1; /* shouldn't ever hit this. */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	62 }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	63 }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	64
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	65
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	66 static const float inv255f = 1.0f / 255.0f;
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	67
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 static SDL_Renderer GL_CreateRenderer(SDL_Window window, Uint32 flags);
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	69 static void GL_WindowEvent(SDL_Renderer * renderer,
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	70 const SDL_WindowEvent *event);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 static int GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);
2222 926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	72 static int GL_QueryTexturePixels(SDL_Renderer * renderer,
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	73 SDL_Texture * texture, void **pixels,
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	74 int *pitch);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75 static int GL_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76 const SDL_Rect * rect, const void *pixels,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 int pitch);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78 static int GL_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	79 const SDL_Rect * rect, int markDirty, void **pixels,
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	80 int *pitch);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81 static void GL_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 static void GL_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 int numrects, const SDL_Rect * rects);
3596 f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	84 static int GL_RenderClear(SDL_Renderer * renderer);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	85 static int GL_RenderDrawPoints(SDL_Renderer * renderer,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	86 const SDL_Point * points, int count);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	87 static int GL_RenderDrawLines(SDL_Renderer * renderer,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	88 const SDL_Point * points, int count);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	89 static int GL_RenderFillRects(SDL_Renderer * renderer,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	90 const SDL_Rect ** rects, int count);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91 static int GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	92 const SDL_Rect * srcrect, const SDL_Rect * dstrect);
3431 c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	93 static int GL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	94 Uint32 pixel_format, void * pixels, int pitch);
3431 c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	95 static int GL_RenderWritePixels(SDL_Renderer * renderer, const SDL_Rect * rect,
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	96 Uint32 pixel_format, const void * pixels, int pitch);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97 static void GL_RenderPresent(SDL_Renderer * renderer);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 static void GL_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 static void GL_DestroyRenderer(SDL_Renderer * renderer);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 SDL_RenderDriver GL_RenderDriver = {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103 GL_CreateRenderer,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105 "opengl",
5145 c8e049de174c Making the API simpler, the renderer present semantics are always having a backbuffer and then discarding it. This is best for hardware accelerated rendering. Sam Lantinga <slouken@libsdl.org> parents: 5144 diff changeset	106 (SDL_RENDERER_PRESENTVSYNC \| SDL_RENDERER_ACCELERATED),
5152 be02be2ea897 Making the API simpler, removed support for palettized video modes and textures. Sam Lantinga <slouken@libsdl.org> parents: 5151 diff changeset	107 13,
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	109 SDL_PIXELFORMAT_RGB332,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	110 SDL_PIXELFORMAT_RGB444,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	111 SDL_PIXELFORMAT_RGB555,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	112 SDL_PIXELFORMAT_ARGB4444,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	113 SDL_PIXELFORMAT_ARGB1555,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	114 SDL_PIXELFORMAT_RGB565,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	115 SDL_PIXELFORMAT_RGB24,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	116 SDL_PIXELFORMAT_BGR24,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	117 SDL_PIXELFORMAT_RGB888,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	118 SDL_PIXELFORMAT_BGR888,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	119 SDL_PIXELFORMAT_ARGB8888,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	120 SDL_PIXELFORMAT_ABGR8888,
2813 49243a6e9ff1 Removed the hacky stuff for YUV OpenGL textures, since Ryan's pixel shader code Sam Lantinga <slouken@libsdl.org> parents: 2812 diff changeset	121 SDL_PIXELFORMAT_ARGB2101010},
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 0,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 0}
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124 };
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 typedef struct
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 SDL_GLContext context;
2833 c2e182a37f5f Whoops, can't call glOrtho() repeatedly Sam Lantinga <slouken@libsdl.org> parents: 2832 diff changeset	129 SDL_bool updateSize;
2233 fb01ee9716bc Test using glTextureRangeAPPLE Sam Lantinga <slouken@libsdl.org> parents: 2230 diff changeset	130 SDL_bool GL_ARB_texture_rectangle_supported;
1974 70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	131 SDL_bool GL_EXT_paletted_texture_supported;
2845 1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture Sam Lantinga <slouken@libsdl.org> parents: 2844 diff changeset	132 SDL_bool GL_APPLE_ycbcr_422_supported;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture Sam Lantinga <slouken@libsdl.org> parents: 2844 diff changeset	133 SDL_bool GL_MESA_ycbcr_texture_supported;
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	134 SDL_bool GL_ARB_fragment_program_supported;
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	135 int blendMode;
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	136
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	137 /* OpenGL functions */
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	138 #define SDL_PROC(ret,func,params) ret (APIENTRY *func) params;
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	139 #include "SDL_glfuncs.h"
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	140 #undef SDL_PROC
1974 70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	141
2233 fb01ee9716bc Test using glTextureRangeAPPLE Sam Lantinga <slouken@libsdl.org> parents: 2230 diff changeset	142 void (*glTextureRangeAPPLE) (GLenum target, GLsizei length,
fb01ee9716bc Test using glTextureRangeAPPLE Sam Lantinga <slouken@libsdl.org> parents: 2230 diff changeset	143 const GLvoid * pointer);
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	144
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	145 PFNGLGETPROGRAMIVARBPROC glGetProgramivARB;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	146 PFNGLGETPROGRAMSTRINGARBPROC glGetProgramStringARB;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	147 PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	148 PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	149 PFNGLGENPROGRAMSARBPROC glGenProgramsARB;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	150 PFNGLBINDPROGRAMARBPROC glBindProgramARB;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	151 PFNGLPROGRAMSTRINGARBPROC glProgramStringARB;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	152
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	153 /* (optional) fragment programs */
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	154 GLuint fragment_program_UYVY;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155 } GL_RenderData;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	156
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	157 typedef struct
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	159 GLuint texture;
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	160 GLuint shader;
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	161 GLenum type;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	162 GLfloat texw;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 GLfloat texh;
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	164 GLenum format;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	165 GLenum formattype;
1974 70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	166 Uint8 *palette;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	167 void *pixels;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	168 int pitch;
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	169 SDL_DirtyRectList dirty;
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	170 int HACK_RYAN_FIXME;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	171 } GL_TextureData;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	173
1924 69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	174 static void
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	175 GL_SetError(const char *prefix, GLenum result)
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	176 {
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	177 const char *error;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	178
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	179 switch (result) {
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	180 case GL_NO_ERROR:
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	181 error = "GL_NO_ERROR";
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	182 break;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	183 case GL_INVALID_ENUM:
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	184 error = "GL_INVALID_ENUM";
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	185 break;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	186 case GL_INVALID_VALUE:
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	187 error = "GL_INVALID_VALUE";
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	188 break;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	189 case GL_INVALID_OPERATION:
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	190 error = "GL_INVALID_OPERATION";
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	191 break;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	192 case GL_STACK_OVERFLOW:
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	193 error = "GL_STACK_OVERFLOW";
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	194 break;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	195 case GL_STACK_UNDERFLOW:
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	196 error = "GL_STACK_UNDERFLOW";
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	197 break;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	198 case GL_OUT_OF_MEMORY:
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	199 error = "GL_OUT_OF_MEMORY";
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	200 break;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	201 case GL_TABLE_TOO_LARGE:
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	202 error = "GL_TABLE_TOO_LARGE";
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	203 break;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	204 default:
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	205 error = "UNKNOWN";
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	206 break;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	207 }
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	208 SDL_SetError("%s: %s", prefix, error);
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	209 }
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	210
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	211 static int
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	212 GL_LoadFunctions(GL_RenderData * data)
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	213 {
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	214 #ifdef __SDL_NOGETPROCADDR__
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	215 #define SDL_PROC(ret,func,params) data->func=func;
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	216 #else
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	217 #define SDL_PROC(ret,func,params) \
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	218 do { \
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	219 data->func = SDL_GL_GetProcAddress(#func); \
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	220 if ( ! data->func ) { \
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	221 SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	222 return -1; \
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	223 } \
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	224 } while ( 0 );
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	225 #endif /* __SDL_NOGETPROCADDR__ */
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	226
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	227 #include "SDL_glfuncs.h"
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	228 #undef SDL_PROC
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	229 return 0;
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	230 }
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	231
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	232 SDL_Renderer *
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	233 GL_CreateRenderer(SDL_Window * window, Uint32 flags)
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	234 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	235 SDL_Renderer *renderer;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	236 GL_RenderData *data;
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1928 diff changeset	237 GLint value;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	238
1974 70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	239 /* Render directly to the window, unless we're compositing */
70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	240 #ifndef __MACOSX__
70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	241 if (flags & SDL_RENDERER_SINGLEBUFFER) {
70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	242 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 0);
70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	243 }
70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	244 #endif
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	245 if (!(window->flags & SDL_WINDOW_OPENGL)) {
1928 861bc36f0ab3 Fixed crash with multiple windows Sam Lantinga <slouken@libsdl.org> parents: 1927 diff changeset	246 if (SDL_RecreateWindow(window, window->flags \| SDL_WINDOW_OPENGL) < 0) {
1924 69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	247 return NULL;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	248 }
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	249 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	250
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	251 renderer = (SDL_Renderer ) SDL_calloc(1, sizeof(renderer));
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	252 if (!renderer) {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	253 SDL_OutOfMemory();
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	254 return NULL;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	255 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	256
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	257 data = (GL_RenderData ) SDL_calloc(1, sizeof(data));
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	258 if (!data) {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	259 GL_DestroyRenderer(renderer);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	260 SDL_OutOfMemory();
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	261 return NULL;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	262 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	263
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	264 renderer->WindowEvent = GL_WindowEvent;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	265 renderer->CreateTexture = GL_CreateTexture;
2222 926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	266 renderer->QueryTexturePixels = GL_QueryTexturePixels;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267 renderer->UpdateTexture = GL_UpdateTexture;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	268 renderer->LockTexture = GL_LockTexture;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	269 renderer->UnlockTexture = GL_UnlockTexture;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	270 renderer->DirtyTexture = GL_DirtyTexture;
3596 f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	271 renderer->RenderClear = GL_RenderClear;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	272 renderer->RenderDrawPoints = GL_RenderDrawPoints;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	273 renderer->RenderDrawLines = GL_RenderDrawLines;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	274 renderer->RenderFillRects = GL_RenderFillRects;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	275 renderer->RenderCopy = GL_RenderCopy;
3431 c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	276 renderer->RenderReadPixels = GL_RenderReadPixels;
c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	277 renderer->RenderWritePixels = GL_RenderWritePixels;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	278 renderer->RenderPresent = GL_RenderPresent;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	279 renderer->DestroyTexture = GL_DestroyTexture;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	280 renderer->DestroyRenderer = GL_DestroyRenderer;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	281 renderer->info = GL_RenderDriver.info;
3685 64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance. Sam Lantinga <slouken@libsdl.org> parents: 3607 diff changeset	282 renderer->window = window;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	283 renderer->driverdata = data;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	284
5145 c8e049de174c Making the API simpler, the renderer present semantics are always having a backbuffer and then discarding it. This is best for hardware accelerated rendering. Sam Lantinga <slouken@libsdl.org> parents: 5144 diff changeset	285 renderer->info.flags = SDL_RENDERER_ACCELERATED;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	286
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	287 if (GL_LoadFunctions(data) < 0) {
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	288 GL_DestroyRenderer(renderer);
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	289 return NULL;
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	290 }
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	291
3685 64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance. Sam Lantinga <slouken@libsdl.org> parents: 3607 diff changeset	292 data->context = SDL_GL_CreateContext(window);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	293 if (!data->context) {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	294 GL_DestroyRenderer(renderer);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	295 return NULL;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	296 }
3685 64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance. Sam Lantinga <slouken@libsdl.org> parents: 3607 diff changeset	297 if (SDL_GL_MakeCurrent(window, data->context) < 0) {
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	298 GL_DestroyRenderer(renderer);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	299 return NULL;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	300 }
2246 75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO Sam Lantinga <slouken@libsdl.org> parents: 2237 diff changeset	301 #ifdef __MACOSX__
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO Sam Lantinga <slouken@libsdl.org> parents: 2237 diff changeset	302 /* Enable multi-threaded rendering */
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO Sam Lantinga <slouken@libsdl.org> parents: 2237 diff changeset	303 /* Disabled until Ryan finishes his VBO/PBO code...
2295 dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	304 CGLEnable(CGLGetCurrentContext(), kCGLCEMPEngine);
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	305 */
2246 75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO Sam Lantinga <slouken@libsdl.org> parents: 2237 diff changeset	306 #endif
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO Sam Lantinga <slouken@libsdl.org> parents: 2237 diff changeset	307
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	308 if (flags & SDL_RENDERER_PRESENTVSYNC) {
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	309 SDL_GL_SetSwapInterval(1);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	310 } else {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	311 SDL_GL_SetSwapInterval(0);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	312 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	313 if (SDL_GL_GetSwapInterval() > 0) {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1952 diff changeset	314 renderer->info.flags \|= SDL_RENDERER_PRESENTVSYNC;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	315 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	316
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1928 diff changeset	317 data->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1928 diff changeset	318 renderer->info.max_texture_width = value;
420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1928 diff changeset	319 data->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1928 diff changeset	320 renderer->info.max_texture_height = value;
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	321
1926 307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	322 if (SDL_GL_ExtensionSupported("GL_ARB_texture_rectangle")
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	323 \|\| SDL_GL_ExtensionSupported("GL_EXT_texture_rectangle")) {
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	324 data->GL_ARB_texture_rectangle_supported = SDL_TRUE;
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	325 }
2845 1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture Sam Lantinga <slouken@libsdl.org> parents: 2844 diff changeset	326 if (SDL_GL_ExtensionSupported("GL_APPLE_ycbcr_422")) {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture Sam Lantinga <slouken@libsdl.org> parents: 2844 diff changeset	327 data->GL_APPLE_ycbcr_422_supported = SDL_TRUE;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture Sam Lantinga <slouken@libsdl.org> parents: 2844 diff changeset	328 }
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture Sam Lantinga <slouken@libsdl.org> parents: 2844 diff changeset	329 if (SDL_GL_ExtensionSupported("GL_MESA_ycbcr_texture")) {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture Sam Lantinga <slouken@libsdl.org> parents: 2844 diff changeset	330 data->GL_MESA_ycbcr_texture_supported = SDL_TRUE;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture Sam Lantinga <slouken@libsdl.org> parents: 2844 diff changeset	331 }
2233 fb01ee9716bc Test using glTextureRangeAPPLE Sam Lantinga <slouken@libsdl.org> parents: 2230 diff changeset	332 if (SDL_GL_ExtensionSupported("GL_APPLE_texture_range")) {
fb01ee9716bc Test using glTextureRangeAPPLE Sam Lantinga <slouken@libsdl.org> parents: 2230 diff changeset	333 data->glTextureRangeAPPLE =
fb01ee9716bc Test using glTextureRangeAPPLE Sam Lantinga <slouken@libsdl.org> parents: 2230 diff changeset	334 (void ()(GLenum, GLsizei, const GLvoid ))
fb01ee9716bc Test using glTextureRangeAPPLE Sam Lantinga <slouken@libsdl.org> parents: 2230 diff changeset	335 SDL_GL_GetProcAddress("glTextureRangeAPPLE");
fb01ee9716bc Test using glTextureRangeAPPLE Sam Lantinga <slouken@libsdl.org> parents: 2230 diff changeset	336 }
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	337
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	338 /* we might use fragment programs for YUV data, etc. */
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	339 if (SDL_GL_ExtensionSupported("GL_ARB_fragment_program")) {
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	340 /* !!! FIXME: this doesn't check for errors. */
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	341 /* !!! FIXME: this should really reuse the glfuncs.h stuff. */
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	342 data->glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	343 SDL_GL_GetProcAddress("glGetProgramivARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	344 data->glGetProgramStringARB = (PFNGLGETPROGRAMSTRINGARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	345 SDL_GL_GetProcAddress("glGetProgramStringARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	346 data->glProgramLocalParameter4fvARB =
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	347 (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	348 SDL_GL_GetProcAddress("glProgramLocalParameter4fvARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	349 data->glDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	350 SDL_GL_GetProcAddress("glDeleteProgramsARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	351 data->glGenProgramsARB = (PFNGLGENPROGRAMSARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	352 SDL_GL_GetProcAddress("glGenProgramsARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	353 data->glBindProgramARB = (PFNGLBINDPROGRAMARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	354 SDL_GL_GetProcAddress("glBindProgramARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	355 data->glProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	356 SDL_GL_GetProcAddress("glProgramStringARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	357 data->GL_ARB_fragment_program_supported = SDL_TRUE;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	358 }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	359
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	360 /* Set up parameters for rendering */
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	361 data->blendMode = -1;
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	362 data->glDisable(GL_DEPTH_TEST);
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	363 data->glDisable(GL_CULL_FACE);
3262 e3d33bd599eb Stefan Ullinger Sam Lantinga <slouken@libsdl.org> parents: 3253 diff changeset	364 /* This ended up causing video discrepancies between OpenGL and Direct3D */
e3d33bd599eb Stefan Ullinger Sam Lantinga <slouken@libsdl.org> parents: 3253 diff changeset	365 /data->glEnable(GL_LINE_SMOOTH);/
1926 307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	366 if (data->GL_ARB_texture_rectangle_supported) {
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	367 data->glEnable(GL_TEXTURE_RECTANGLE_ARB);
1926 307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	368 } else {
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	369 data->glEnable(GL_TEXTURE_2D);
1926 307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	370 }
2833 c2e182a37f5f Whoops, can't call glOrtho() repeatedly Sam Lantinga <slouken@libsdl.org> parents: 2832 diff changeset	371 data->updateSize = SDL_TRUE;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	372
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	373 return renderer;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	374 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	375
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	376 static SDL_GLContext SDL_CurrentContext = NULL;
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	377
1923 d4572b97b08f Switch OpenGL contexts when switching render contexts. Sam Lantinga <slouken@libsdl.org> parents: 1922 diff changeset	378 static int
d4572b97b08f Switch OpenGL contexts when switching render contexts. Sam Lantinga <slouken@libsdl.org> parents: 1922 diff changeset	379 GL_ActivateRenderer(SDL_Renderer * renderer)
d4572b97b08f Switch OpenGL contexts when switching render contexts. Sam Lantinga <slouken@libsdl.org> parents: 1922 diff changeset	380 {
d4572b97b08f Switch OpenGL contexts when switching render contexts. Sam Lantinga <slouken@libsdl.org> parents: 1922 diff changeset	381 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
3685 64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance. Sam Lantinga <slouken@libsdl.org> parents: 3607 diff changeset	382 SDL_Window *window = renderer->window;
1923 d4572b97b08f Switch OpenGL contexts when switching render contexts. Sam Lantinga <slouken@libsdl.org> parents: 1922 diff changeset	383
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	384 if (SDL_CurrentContext != data->context) {
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	385 if (SDL_GL_MakeCurrent(window, data->context) < 0) {
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	386 return -1;
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	387 }
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	388 SDL_CurrentContext = data->context;
1970 db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	389 }
2833 c2e182a37f5f Whoops, can't call glOrtho() repeatedly Sam Lantinga <slouken@libsdl.org> parents: 2832 diff changeset	390 if (data->updateSize) {
2836 b128b94ed31e Rebind the context to the window area and update matrices when the window size changes Sam Lantinga <slouken@libsdl.org> parents: 2835 diff changeset	391 data->glMatrixMode(GL_PROJECTION);
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes Sam Lantinga <slouken@libsdl.org> parents: 2835 diff changeset	392 data->glLoadIdentity();
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes Sam Lantinga <slouken@libsdl.org> parents: 2835 diff changeset	393 data->glMatrixMode(GL_MODELVIEW);
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes Sam Lantinga <slouken@libsdl.org> parents: 2835 diff changeset	394 data->glLoadIdentity();
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes Sam Lantinga <slouken@libsdl.org> parents: 2835 diff changeset	395 data->glViewport(0, 0, window->w, window->h);
3324 0f19b2fa4125 -0.5 is causing trouble according to comments in bug #783 Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	396 data->glOrtho(0.0, (GLdouble) window->w,
0f19b2fa4125 -0.5 is causing trouble according to comments in bug #783 Sam Lantinga <slouken@libsdl.org> parents: 3283 diff changeset	397 (GLdouble) window->h, 0.0, 0.0, 1.0);
2833 c2e182a37f5f Whoops, can't call glOrtho() repeatedly Sam Lantinga <slouken@libsdl.org> parents: 2832 diff changeset	398 data->updateSize = SDL_FALSE;
c2e182a37f5f Whoops, can't call glOrtho() repeatedly Sam Lantinga <slouken@libsdl.org> parents: 2832 diff changeset	399 }
1970 db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	400 return 0;
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	401 }
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	402
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	403 static void
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	404 GL_WindowEvent(SDL_Renderer * renderer, const SDL_WindowEvent *event)
1970 db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	405 {
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	406 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	407
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	408 if (event->event == SDL_WINDOWEVENT_RESIZED) {
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	409 /* Rebind the context to the window area and update matrices */
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	410 SDL_CurrentContext = NULL;
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	411 data->updateSize = SDL_TRUE;
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	412 }
1923 d4572b97b08f Switch OpenGL contexts when switching render contexts. Sam Lantinga <slouken@libsdl.org> parents: 1922 diff changeset	413 }
d4572b97b08f Switch OpenGL contexts when switching render contexts. Sam Lantinga <slouken@libsdl.org> parents: 1922 diff changeset	414
1922 4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	415 static __inline__ int
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	416 power_of_2(int input)
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	417 {
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	418 int value = 1;
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	419
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	420 while (value < input) {
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	421 value <<= 1;
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	422 }
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	423 return value;
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	424 }
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	425
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	426
2858 a38fcb093081 A little cleanup for SDL snapshot release Sam Lantinga <slouken@libsdl.org> parents: 2848 diff changeset	427 //#define DEBUG_PROGRAM_COMPILE 1
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	428
3468 789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	429 static void
789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	430 set_shader_error(GL_RenderData * data, const char *prefix)
789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	431 {
789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	432 GLint pos = 0;
789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	433 const GLubyte *errstr;
789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	434 data->glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &pos);
789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	435 errstr = data->glGetString(GL_PROGRAM_ERROR_STRING_ARB);
3479 6f887204fa7a Whoops, actually set the SDL error, don't just print the error. Sam Lantinga <slouken@libsdl.org> parents: 3475 diff changeset	436 SDL_SetError("%s: shader compile error at position %d: %s",
3468 789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	437 prefix, (int) pos, (const char *) errstr);
789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	438 }
789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	439
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	440 static GLuint
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	441 compile_shader(GL_RenderData * data, GLenum shader_type, const char *_code)
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	442 {
2847 7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	443 const int have_texture_rects = data->GL_ARB_texture_rectangle_supported;
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	444 const char *replacement = have_texture_rects ? "RECT" : "2D";
2918 bd518fc76f28 Updated to build on Windows Sam Lantinga <slouken@libsdl.org> parents: 2901 diff changeset	445 const size_t replacementlen = SDL_strlen(replacement);
2847 7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	446 const char *token = "%TEXTURETARGET%";
2918 bd518fc76f28 Updated to build on Windows Sam Lantinga <slouken@libsdl.org> parents: 2901 diff changeset	447 const size_t tokenlen = SDL_strlen(token);
2847 7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	448 char *code = NULL;
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	449 char *ptr = NULL;
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	450 GLuint program = 0;
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	451
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	452 /*
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	453 * The TEX instruction needs a different target depending on what we use.
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	454 * To handle this, we use "%TEXTURETARGET%" and replace the string before
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	455 * compiling the shader.
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	456 */
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	457 code = SDL_strdup(_code);
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	458 if (code == NULL)
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	459 return 0;
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	460
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	461 for (ptr = SDL_strstr(code, token); ptr; ptr = SDL_strstr(ptr + 1, token)) {
2918 bd518fc76f28 Updated to build on Windows Sam Lantinga <slouken@libsdl.org> parents: 2901 diff changeset	462 SDL_memcpy(ptr, replacement, replacementlen);
bd518fc76f28 Updated to build on Windows Sam Lantinga <slouken@libsdl.org> parents: 2901 diff changeset	463 SDL_memmove(ptr + replacementlen, ptr + tokenlen,
bd518fc76f28 Updated to build on Windows Sam Lantinga <slouken@libsdl.org> parents: 2901 diff changeset	464 SDL_strlen(ptr + tokenlen) + 1);
2847 7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	465 }
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	466
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	467 #if DEBUG_PROGRAM_COMPILE
2847 7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	468 printf("compiling shader:\n%s\n\n", code);
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	469 #endif
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	470
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	471 data->glGetError(); /* flush any existing error state. */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	472 data->glGenProgramsARB(1, &program);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	473 data->glBindProgramARB(shader_type, program);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	474 data->glProgramStringARB(shader_type, GL_PROGRAM_FORMAT_ASCII_ARB,
3253 5d7ef5970073 Fixed issues building 64-bit Windows binary Sam Lantinga <slouken@libsdl.org> parents: 3041 diff changeset	475 (GLsizei)SDL_strlen(code), code);
2847 7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	476
7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	477 SDL_free(code);
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	478
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	479 if (data->glGetError() == GL_INVALID_OPERATION) {
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	480 #if DEBUG_PROGRAM_COMPILE
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	481 GLint pos = 0;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	482 const GLubyte *errstr;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	483 data->glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &pos);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	484 errstr = data->glGetString(GL_PROGRAM_ERROR_STRING_ARB);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	485 printf("program compile error at position %d: %s\n\n",
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	486 (int) pos, (const char *) errstr);
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	487 #endif
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	488 data->glBindProgramARB(shader_type, 0);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	489 data->glDeleteProgramsARB(1, &program);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	490 return 0;
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	491 }
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	492
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	493 return program;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	494 }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	495
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	496
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	497 /*
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	498 * Fragment program that renders from UYVY textures.
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	499 * The UYVY to RGB equasion is:
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	500 * R = 1.164(Y-16) + 1.596(Cr-128)
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	501 * G = 1.164(Y-16) - 0.813(Cr-128) - 0.391(Cb-128)
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	502 * B = 1.164(Y-16) + 2.018(Cb-128)
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	503 * Byte layout is Cb, Y1, Cr, Y2, stored in the R, G, B, A channels.
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	504 * 4 bytes == 2 pixels: Y1/Cb/Cr, Y2/Cb/Cr
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	505 *
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	506 * !!! FIXME: this ignores blendmodes, etc.
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	507 * !!! FIXME: this could be more efficient...use a dot product for green, etc.
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	508 */
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	509 static const char *fragment_program_UYVY_source_code = "!!ARBfp1.0\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	510 /* outputs... */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	511 "OUTPUT outcolor = result.color;\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	512 /* scratch registers... */
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	513 "TEMP uyvy;\n" "TEMP luminance;\n" "TEMP work;\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	514 /* Halve the coordinates to grab the correct 32 bits for the fragment. */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	515 "MUL work, fragment.texcoord, { 0.5, 1.0, 1.0, 1.0 };\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	516 /* Sample the YUV texture. Cb, Y1, Cr, Y2, are stored in x, y, z, w. */
2847 7d020441fa81 Don't hardcode RECT for fragment program texture targets. Ryan C. Gordon <icculus@icculus.org> parents: 2846 diff changeset	517 "TEX uyvy, work, texture[0], %TEXTURETARGET%;\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	518 /* Do subtractions (128/255, 16/255, 128/255, 16/255) */
2846 3d7833d5a4be Slight optimization of the shader, no need to scale into 0..255 Sam Lantinga <slouken@libsdl.org> parents: 2845 diff changeset	519 "SUB uyvy, uyvy, { 0.501960784313726, 0.06274509803922, 0.501960784313726, 0.06274509803922 };\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	520 /* Choose the luminance component by texcoord. */
8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	521 /* !!! FIXME: laziness wins out for now... just average Y1 and Y2. */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	522 "ADD luminance, uyvy.yyyy, uyvy.wwww;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	523 "MUL luminance, luminance, { 0.5, 0.5, 0.5, 0.5 };\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	524 /* Multiply luminance by its magic value. */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	525 "MUL luminance, luminance, { 1.164, 1.164, 1.164, 1.164 };\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	526 /* uyvy.xyzw becomes Cr/Cr/Cb/Cb, with multiplications. */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	527 "MUL uyvy, uyvy.zzxx, { 1.596, -0.813, 2.018, -0.391 };\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	528 /* Add luminance to Cr and Cb, store to RGB channels. */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	529 "ADD work.rgb, luminance, uyvy;\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	530 /* Do final addition for Green channel. (!!! FIXME: this should be a DPH?) */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	531 "ADD work.g, work.g, uyvy.w;\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	532 /* Make sure alpha channel is fully opaque. (!!! FIXME: blend modes!) */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	533 "MOV work.a, { 1.0 };\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	534 /* Store out the final fragment color... */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	535 "MOV outcolor, work;\n"
2848 8a3aa505ecba Comment cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 2847 diff changeset	536 /* ...and we're done! */
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	537 "END\n";
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	538
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	539 static __inline__ SDL_bool
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	540 convert_format(GL_RenderData *renderdata, Uint32 pixel_format,
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	541 GLint* internalFormat, GLenum* format, GLenum* type)
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	542 {
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	543 switch (pixel_format) {
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	544 case SDL_PIXELFORMAT_RGB332:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	545 *internalFormat = GL_R3_G3_B2;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	546 *format = GL_RGB;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	547 *type = GL_UNSIGNED_BYTE_3_3_2;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	548 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	549 case SDL_PIXELFORMAT_RGB444:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	550 *internalFormat = GL_RGB4;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	551 *format = GL_RGB;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	552 *type = GL_UNSIGNED_SHORT_4_4_4_4;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	553 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	554 case SDL_PIXELFORMAT_RGB555:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	555 *internalFormat = GL_RGB5;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	556 *format = GL_RGB;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	557 *type = GL_UNSIGNED_SHORT_5_5_5_1;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	558 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	559 case SDL_PIXELFORMAT_ARGB4444:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	560 *internalFormat = GL_RGBA4;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	561 *format = GL_BGRA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	562 *type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	563 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	564 case SDL_PIXELFORMAT_ARGB1555:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	565 *internalFormat = GL_RGB5_A1;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	566 *format = GL_BGRA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	567 *type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	568 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	569 case SDL_PIXELFORMAT_RGB565:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	570 *internalFormat = GL_RGB8;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	571 *format = GL_RGB;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	572 *type = GL_UNSIGNED_SHORT_5_6_5;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	573 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	574 case SDL_PIXELFORMAT_RGB24:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	575 *internalFormat = GL_RGB8;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	576 *format = GL_RGB;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	577 *type = GL_UNSIGNED_BYTE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	578 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	579 case SDL_PIXELFORMAT_RGB888:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	580 *internalFormat = GL_RGB8;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	581 *format = GL_BGRA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	582 *type = GL_UNSIGNED_BYTE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	583 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	584 case SDL_PIXELFORMAT_BGR24:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	585 *internalFormat = GL_RGB8;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	586 *format = GL_BGR;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	587 *type = GL_UNSIGNED_BYTE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	588 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	589 case SDL_PIXELFORMAT_BGR888:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	590 *internalFormat = GL_RGB8;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	591 *format = GL_RGBA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	592 *type = GL_UNSIGNED_BYTE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	593 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	594 case SDL_PIXELFORMAT_ARGB8888:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	595 #ifdef __MACOSX__
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	596 *internalFormat = GL_RGBA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	597 *format = GL_BGRA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	598 *type = GL_UNSIGNED_INT_8_8_8_8_REV;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	599 #else
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	600 *internalFormat = GL_RGBA8;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	601 *format = GL_BGRA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	602 *type = GL_UNSIGNED_BYTE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	603 #endif
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	604 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	605 case SDL_PIXELFORMAT_ABGR8888:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	606 *internalFormat = GL_RGBA8;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	607 *format = GL_RGBA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	608 *type = GL_UNSIGNED_BYTE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	609 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	610 case SDL_PIXELFORMAT_ARGB2101010:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	611 *internalFormat = GL_RGB10_A2;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	612 *format = GL_BGRA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	613 *type = GL_UNSIGNED_INT_2_10_10_10_REV;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	614 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	615 case SDL_PIXELFORMAT_UYVY:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	616 if (renderdata->GL_APPLE_ycbcr_422_supported) {
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	617 *internalFormat = GL_RGB;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	618 *format = GL_YCBCR_422_APPLE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	619 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	620 *type = GL_UNSIGNED_SHORT_8_8_APPLE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	621 #else
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	622 *type = GL_UNSIGNED_SHORT_8_8_REV_APPLE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	623 #endif
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	624 } else if (renderdata->GL_MESA_ycbcr_texture_supported) {
3494 61d95a87c327 Adam Strzelecki to SDL Sam Lantinga <slouken@libsdl.org> parents: 3479 diff changeset	625 *internalFormat = GL_YCBCR_MESA;
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	626 *format = GL_YCBCR_MESA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	627 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	628 *type = GL_UNSIGNED_SHORT_8_8_MESA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	629 #else
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	630 *type = GL_UNSIGNED_SHORT_8_8_REV_MESA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	631 #endif
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	632 } else if (renderdata->GL_ARB_fragment_program_supported) {
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	633 *internalFormat = GL_RGBA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	634 *format = GL_RGBA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	635 *type = GL_UNSIGNED_BYTE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	636 } else {
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	637 return SDL_FALSE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	638 }
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	639 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	640 case SDL_PIXELFORMAT_YUY2:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	641 if (renderdata->GL_APPLE_ycbcr_422_supported) {
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	642 *internalFormat = GL_RGB;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	643 *format = GL_YCBCR_422_APPLE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	644 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	645 *type = GL_UNSIGNED_SHORT_8_8_REV_APPLE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	646 #else
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	647 *type = GL_UNSIGNED_SHORT_8_8_APPLE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	648 #endif
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	649 } else if (renderdata->GL_MESA_ycbcr_texture_supported) {
3494 61d95a87c327 Adam Strzelecki to SDL Sam Lantinga <slouken@libsdl.org> parents: 3479 diff changeset	650 *internalFormat = GL_YCBCR_MESA;
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	651 *format = GL_YCBCR_MESA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	652 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	653 *type = GL_UNSIGNED_SHORT_8_8_REV_MESA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	654 #else
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	655 *type = GL_UNSIGNED_SHORT_8_8_MESA;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	656 #endif
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	657 } else {
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	658 return SDL_FALSE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	659 }
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	660 break;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	661 default:
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	662 return SDL_FALSE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	663 }
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	664 return SDL_TRUE;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	665 }
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	666
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	667 static int
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	668 GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	669 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	670 GL_RenderData renderdata = (GL_RenderData ) renderer->driverdata;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	671 GL_TextureData *data;
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	672 GLint internalFormat;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	673 GLenum format, type;
1922 4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code Sam Lantinga <slouken@libsdl.org> parents: 1921 diff changeset	674 int texture_w, texture_h;
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	675 GLuint shader = 0;
1924 69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	676 GLenum result;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	677
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	678 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	679
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	680 if (!convert_format(renderdata, texture->format, &internalFormat,
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	681 &format, &type)) {
4990 397e748d901a Improved error message for unsupported texture format Sam Lantinga <slouken@libsdl.org> parents: 4929 diff changeset	682 SDL_SetError("Texture format %s not supported by OpenGL",
397e748d901a Improved error message for unsupported texture format Sam Lantinga <slouken@libsdl.org> parents: 4929 diff changeset	683 SDL_GetPixelFormatName(texture->format));
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	684 return -1;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	685 }
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	686 if (texture->format == SDL_PIXELFORMAT_UYVY &&
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	687 !renderdata->GL_APPLE_ycbcr_422_supported &&
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	688 !renderdata->GL_MESA_ycbcr_texture_supported &&
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	689 renderdata->GL_ARB_fragment_program_supported) {
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	690 if (renderdata->fragment_program_UYVY == 0) {
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	691 renderdata->fragment_program_UYVY =
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	692 compile_shader(renderdata, GL_FRAGMENT_PROGRAM_ARB,
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	693 fragment_program_UYVY_source_code);
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	694 if (renderdata->fragment_program_UYVY == 0) {
3468 789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	695 set_shader_error(renderdata, "UYVY");
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	696 return -1;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	697 }
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	698 }
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	699 shader = renderdata->fragment_program_UYVY;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	700 }
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	701
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	702 data = (GL_TextureData ) SDL_calloc(1, sizeof(data));
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	703 if (!data) {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	704 SDL_OutOfMemory();
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	705 return -1;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	706 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	707
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	708 data->shader = shader;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	709
2222 926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	710 if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	711 data->pitch = texture->w * bytes_per_pixel(texture->format);
2222 926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	712 data->pixels = SDL_malloc(texture->h * data->pitch);
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	713 if (!data->pixels) {
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	714 SDL_OutOfMemory();
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	715 SDL_free(data);
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	716 return -1;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	717 }
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	718 }
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	719
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	720 texture->driverdata = data;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	721
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	722 renderdata->glGetError();
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	723 renderdata->glGenTextures(1, &data->texture);
1926 307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	724 if (renderdata->GL_ARB_texture_rectangle_supported) {
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	725 data->type = GL_TEXTURE_RECTANGLE_ARB;
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	726 texture_w = texture->w;
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	727 texture_h = texture->h;
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	728 data->texw = (GLfloat) texture_w;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	729 data->texh = (GLfloat) texture_h;
1926 307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	730 } else {
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	731 data->type = GL_TEXTURE_2D;
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	732 texture_w = power_of_2(texture->w);
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	733 texture_h = power_of_2(texture->h);
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	734 data->texw = (GLfloat) (texture->w) / texture_w;
1926 307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	735 data->texh = (GLfloat) texture->h / texture_h;
307355678142 Added SDL_GL_ExtensionSupported() Sam Lantinga <slouken@libsdl.org> parents: 1924 diff changeset	736 }
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	737
2839 f89700cc9272 Progress, maybe. :) Sam Lantinga <slouken@libsdl.org> parents: 2836 diff changeset	738 /* YUV formats use RGBA but are really two bytes per pixel */
f89700cc9272 Progress, maybe. :) Sam Lantinga <slouken@libsdl.org> parents: 2836 diff changeset	739 if (internalFormat == GL_RGBA && bytes_per_pixel(texture->format) < 4) {
3707 d8308bc267bc Adam Strzelecki to SDL Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	740 texture_w /= 2;
d8308bc267bc Adam Strzelecki to SDL Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	741 if (data->type == GL_TEXTURE_2D) {
d8308bc267bc Adam Strzelecki to SDL Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	742 data->texw *= 2.0f;
d8308bc267bc Adam Strzelecki to SDL Sam Lantinga <slouken@libsdl.org> parents: 3697 diff changeset	743 }
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	744 data->HACK_RYAN_FIXME = 2;
2843 e919f2e3700d Fixed the shader fragment problems using 2 byte YUV data in a 4 byte RGB Sam Lantinga <slouken@libsdl.org> parents: 2840 diff changeset	745 } else {
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	746 data->HACK_RYAN_FIXME = 1;
2839 f89700cc9272 Progress, maybe. :) Sam Lantinga <slouken@libsdl.org> parents: 2836 diff changeset	747 }
f89700cc9272 Progress, maybe. :) Sam Lantinga <slouken@libsdl.org> parents: 2836 diff changeset	748
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	749 data->format = format;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	750 data->formattype = type;
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	751 renderdata->glEnable(data->type);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	752 renderdata->glBindTexture(data->type, data->texture);
2230 9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	753 renderdata->glTexParameteri(data->type, GL_TEXTURE_MIN_FILTER,
5141 da10636e5eca Making the API simpler, scaling is always defined as linear interpolation and should be supported as much as possible on all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5088 diff changeset	754 GL_LINEAR);
2230 9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	755 renderdata->glTexParameteri(data->type, GL_TEXTURE_MAG_FILTER,
5141 da10636e5eca Making the API simpler, scaling is always defined as linear interpolation and should be supported as much as possible on all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5088 diff changeset	756 GL_LINEAR);
2230 9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	757 renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_S,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	758 GL_CLAMP_TO_EDGE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	759 renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_T,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	760 GL_CLAMP_TO_EDGE);
2840 53ca0d758b0a The previous checkin fixes the crash, so at least we're not overrunning Sam Lantinga <slouken@libsdl.org> parents: 2839 diff changeset	761 #ifdef __MACOSX__
2230 9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	762 #ifndef GL_TEXTURE_STORAGE_HINT_APPLE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	763 #define GL_TEXTURE_STORAGE_HINT_APPLE 0x85BC
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	764 #endif
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	765 #ifndef STORAGE_CACHED_APPLE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	766 #define STORAGE_CACHED_APPLE 0x85BE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	767 #endif
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	768 #ifndef STORAGE_SHARED_APPLE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	769 #define STORAGE_SHARED_APPLE 0x85BF
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	770 #endif
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	771 if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	772 renderdata->glTexParameteri(data->type, GL_TEXTURE_STORAGE_HINT_APPLE,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	773 GL_STORAGE_SHARED_APPLE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	774 } else {
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	775 renderdata->glTexParameteri(data->type, GL_TEXTURE_STORAGE_HINT_APPLE,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	776 GL_STORAGE_CACHED_APPLE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	777 }
2809 7e257c3a3bf0 Temporary fix for Mac OS X crash in textoverlay Sam Lantinga <slouken@libsdl.org> parents: 2808 diff changeset	778 /* This causes a crash in testoverlay for some reason. Apple bug? */
7e257c3a3bf0 Temporary fix for Mac OS X crash in textoverlay Sam Lantinga <slouken@libsdl.org> parents: 2808 diff changeset	779 #if 0
2295 dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	780 if (texture->access == SDL_TEXTUREACCESS_STREAMING
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	781 && texture->format == SDL_PIXELFORMAT_ARGB8888) {
2237 e57a883ffa86 Advertise the most efficient format for the screen. Of course SDL code needs Sam Lantinga <slouken@libsdl.org> parents: 2236 diff changeset	782 /*
2295 dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	783 if (renderdata->glTextureRangeAPPLE) {
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	784 renderdata->glTextureRangeAPPLE(data->type,
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	785 texture->h * data->pitch,
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	786 data->pixels);
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	787 }
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob. Bob Pendleton <bob@pendleton.com> parents: 2275 diff changeset	788 */
2230 9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	789 renderdata->glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	790 renderdata->glTexImage2D(data->type, 0, internalFormat, texture_w,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	791 texture_h, 0, format, type, data->pixels);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	792 } else
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	793 #endif
2809 7e257c3a3bf0 Temporary fix for Mac OS X crash in textoverlay Sam Lantinga <slouken@libsdl.org> parents: 2808 diff changeset	794 #endif
2230 9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	795 {
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	796 renderdata->glTexImage2D(data->type, 0, internalFormat, texture_w,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	797 texture_h, 0, format, type, NULL);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X. Sam Lantinga <slouken@libsdl.org> parents: 2222 diff changeset	798 }
3041 20d65430e63c Fixed OpenGL state issue reported by Dmytro Bogovych Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	799 renderdata->glDisable(data->type);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	800 result = renderdata->glGetError();
1924 69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	801 if (result != GL_NO_ERROR) {
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	802 GL_SetError("glTexImage2D()", result);
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	803 return -1;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	804 }
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	805 return 0;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	806 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	807
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	808 static int
2222 926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	809 GL_QueryTexturePixels(SDL_Renderer * renderer, SDL_Texture * texture,
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	810 void *pixels, int pitch)
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	811 {
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	812 GL_TextureData data = (GL_TextureData ) texture->driverdata;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	813
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	814 *pixels = data->pixels;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	815 *pitch = data->pitch;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	816 return 0;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	817 }
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture Sam Lantinga <slouken@libsdl.org> parents: 1986 diff changeset	818
1924 69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	819 static void
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	820 SetupTextureUpdate(GL_RenderData * renderdata, SDL_Texture * texture,
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	821 int pitch)
1924 69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	822 {
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	823 renderdata->glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
2808 368410632f2d Whoops, we need this for subrect updates (testsprite) Sam Lantinga <slouken@libsdl.org> parents: 2804 diff changeset	824 renderdata->glPixelStorei(GL_UNPACK_ROW_LENGTH,
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	825 (pitch / bytes_per_pixel(texture->format)) /
3013 8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	826 ((GL_TextureData *) texture->driverdata)->
8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	827 HACK_RYAN_FIXME);
1924 69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	828 }
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	829
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	830 static int
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	831 GL_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	832 const SDL_Rect * rect, const void *pixels, int pitch)
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	833 {
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	834 GL_RenderData renderdata = (GL_RenderData ) renderer->driverdata;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	835 GL_TextureData data = (GL_TextureData ) texture->driverdata;
1924 69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	836 GLenum result;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	837
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	838 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	839
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	840 renderdata->glGetError();
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	841 SetupTextureUpdate(renderdata, texture, pitch);
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	842 renderdata->glEnable(data->type);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	843 renderdata->glBindTexture(data->type, data->texture);
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	844 renderdata->glTexSubImage2D(data->type, 0, rect->x, rect->y, rect->w,
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	845 rect->h, data->format, data->formattype,
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	846 pixels);
3041 20d65430e63c Fixed OpenGL state issue reported by Dmytro Bogovych Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	847 renderdata->glDisable(data->type);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	848 result = renderdata->glGetError();
1924 69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	849 if (result != GL_NO_ERROR) {
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	850 GL_SetError("glTexSubImage2D()", result);
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	851 return -1;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled. Sam Lantinga <slouken@libsdl.org> parents: 1923 diff changeset	852 }
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	853 return 0;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	854 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	855
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	856 static int
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	857 GL_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	858 const SDL_Rect * rect, int markDirty, void **pixels,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	859 int *pitch)
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	860 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	861 GL_TextureData data = (GL_TextureData ) texture->driverdata;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	862
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	863 if (markDirty) {
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	864 SDL_AddDirtyRect(&data->dirty, rect);
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	865 }
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	866
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	867 *pixels =
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	868 (void ) ((Uint8 ) data->pixels + rect->y * data->pitch +
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	869 rect->x * bytes_per_pixel(texture->format));
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	870 *pitch = data->pitch;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	871 return 0;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	872 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	873
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	874 static void
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	875 GL_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	876 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	877 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	878
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	879 static void
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	880 GL_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture, int numrects,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	881 const SDL_Rect * rects)
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	882 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	883 GL_TextureData data = (GL_TextureData ) texture->driverdata;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	884 int i;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	885
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	886 for (i = 0; i < numrects; ++i) {
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	887 SDL_AddDirtyRect(&data->dirty, &rects[i]);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	888 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	889 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	890
2936 066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	891 static void
5143 e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5141 diff changeset	892 GL_SetBlendMode(GL_RenderData * data, int blendMode)
2936 066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	893 {
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	894 if (blendMode != data->blendMode) {
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	895 switch (blendMode) {
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	896 case SDL_BLENDMODE_NONE:
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	897 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	898 data->glDisable(GL_BLEND);
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	899 break;
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	900 case SDL_BLENDMODE_BLEND:
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	901 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	902 data->glEnable(GL_BLEND);
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	903 data->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	904 break;
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	905 case SDL_BLENDMODE_ADD:
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	906 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	907 data->glEnable(GL_BLEND);
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	908 data->glBlendFunc(GL_SRC_ALPHA, GL_ONE);
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	909 break;
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	910 }
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	911 data->blendMode = blendMode;
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	912 }
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	913 }
066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	914
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	915 static int
3596 f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	916 GL_RenderClear(SDL_Renderer * renderer)
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	917 {
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	918 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	919
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	920 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	921
3596 f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	922 data->glClearColor((GLfloat) renderer->r * inv255f,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	923 (GLfloat) renderer->g * inv255f,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	924 (GLfloat) renderer->b * inv255f,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	925 (GLfloat) renderer->a * inv255f);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	926
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	927 data->glClear(GL_COLOR_BUFFER_BIT);
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	928
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	929 return 0;
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	930 }
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	931
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	932 static int
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	933 GL_RenderDrawPoints(SDL_Renderer * renderer, const SDL_Point * points,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	934 int count)
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	935 {
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	936 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	937 int i;
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	938
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	939 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	940
5143 e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5141 diff changeset	941 GL_SetBlendMode(data, renderer->blendMode);
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	942
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	943 data->glColor4f((GLfloat) renderer->r * inv255f,
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	944 (GLfloat) renderer->g * inv255f,
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	945 (GLfloat) renderer->b * inv255f,
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	946 (GLfloat) renderer->a * inv255f);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	947
2901 133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	948 data->glBegin(GL_POINTS);
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	949 for (i = 0; i < count; ++i) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	950 data->glVertex2f(0.5f + points[i].x, 0.5f + points[i].y);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	951 }
2901 133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	952 data->glEnd();
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	953
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	954 return 0;
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	955 }
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	956
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	957 static int
3596 f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	958 GL_RenderDrawLines(SDL_Renderer * renderer, const SDL_Point * points,
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	959 int count)
2901 133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	960 {
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	961 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	962 int i;
2901 133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	963
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	964 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	965
5143 e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5141 diff changeset	966 GL_SetBlendMode(data, renderer->blendMode);
2901 133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	967
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	968 data->glColor4f((GLfloat) renderer->r * inv255f,
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	969 (GLfloat) renderer->g * inv255f,
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	970 (GLfloat) renderer->b * inv255f,
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	971 (GLfloat) renderer->a * inv255f);
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2893 diff changeset	972
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	973 if (count > 2 &&
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	974 points[0].x == points[count-1].x && points[0].y == points[count-1].y) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	975 data->glBegin(GL_LINE_LOOP);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	976 /* GL_LINE_LOOP takes care of the final segment */
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	977 --count;
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	978 for (i = 0; i < count; ++i) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	979 data->glVertex2f(0.5f + points[i].x, 0.5f + points[i].y);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	980 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	981 data->glEnd();
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	982 } else {
5088 c2539ff054c8 Fixed compiling on Windows Mobile SDK 5.0 with Visual Studio 2008 Sam Lantinga <slouken@libsdl.org> parents: 5062 diff changeset	983 #if defined(__APPLE__) \|\| defined(__WIN32__)
4910 f205711f73d5 Fix and rename VS2010 project files, add tests to VS2010 solution, fix VS compiler warning Andreas Schiffler <aschiffler@ferzkopp.net> parents: 4905 diff changeset	984 #else
4905 9779093454d2 This fixes SDL_renderer_gl so that it builds with c89. Sam Lantinga <slouken@libsdl.org> parents: 4455 diff changeset	985 int x1, y1, x2, y2;
4910 f205711f73d5 Fix and rename VS2010 project files, add tests to VS2010 solution, fix VS compiler warning Andreas Schiffler <aschiffler@ferzkopp.net> parents: 4905 diff changeset	986 #endif
4905 9779093454d2 This fixes SDL_renderer_gl so that it builds with c89. Sam Lantinga <slouken@libsdl.org> parents: 4455 diff changeset	987
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	988 data->glBegin(GL_LINE_STRIP);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	989 for (i = 0; i < count; ++i) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	990 data->glVertex2f(0.5f + points[i].x, 0.5f + points[i].y);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	991 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	992 data->glEnd();
3474 1edb86163d62 Of COURSE that trick wouldn't work on all renderers. Fall back to something for now, hopefully figure out a better way to do this later. Sam Lantinga <slouken@libsdl.org> parents: 3473 diff changeset	993
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	994 /* The line is half open, so we need one more point to complete it.
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	995 * http://www.opengl.org/documentation/specs/version1.1/glspec1.1/node47.html
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	996 * If we have to, we can use vertical line and horizontal line textures
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	997 * for vertical and horizontal lines, and then create custom textures
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	998 * for diagonal lines and software render those. It's terrible, but at
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	999 * least it would be pixel perfect.
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1000 */
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1001 data->glBegin(GL_POINTS);
5088 c2539ff054c8 Fixed compiling on Windows Mobile SDK 5.0 with Visual Studio 2008 Sam Lantinga <slouken@libsdl.org> parents: 5062 diff changeset	1002 #if defined(__APPLE__) \|\| defined(__WIN32__)
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1003 /* Mac OS X and Windows seem to always leave the second point open */
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1004 data->glVertex2f(0.5f + points[count-1].x, 0.5f + points[count-1].y);
3474 1edb86163d62 Of COURSE that trick wouldn't work on all renderers. Fall back to something for now, hopefully figure out a better way to do this later. Sam Lantinga <slouken@libsdl.org> parents: 3473 diff changeset	1005 #else
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1006 /* Linux seems to leave the right-most or bottom-most point open */
4905 9779093454d2 This fixes SDL_renderer_gl so that it builds with c89. Sam Lantinga <slouken@libsdl.org> parents: 4455 diff changeset	1007 x1 = points[0].x;
9779093454d2 This fixes SDL_renderer_gl so that it builds with c89. Sam Lantinga <slouken@libsdl.org> parents: 4455 diff changeset	1008 y1 = points[0].y;
9779093454d2 This fixes SDL_renderer_gl so that it builds with c89. Sam Lantinga <slouken@libsdl.org> parents: 4455 diff changeset	1009 x2 = points[count-1].x;
9779093454d2 This fixes SDL_renderer_gl so that it builds with c89. Sam Lantinga <slouken@libsdl.org> parents: 4455 diff changeset	1010 y2 = points[count-1].y;
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1011
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1012 if (x1 > x2) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1013 data->glVertex2f(0.5f + x1, 0.5f + y1);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1014 } else if (x2 > x1) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1015 data->glVertex2f(0.5f + x2, 0.5f + y2);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1016 } else if (y1 > y2) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1017 data->glVertex2f(0.5f + x1, 0.5f + y1);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1018 } else if (y2 > y1) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1019 data->glVertex2f(0.5f + x2, 0.5f + y2);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1020 }
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1021 #endif
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1022 data->glEnd();
3474 1edb86163d62 Of COURSE that trick wouldn't work on all renderers. Fall back to something for now, hopefully figure out a better way to do this later. Sam Lantinga <slouken@libsdl.org> parents: 3473 diff changeset	1023 }
3455 5a7b5760c875 Include the endpoint in the line we're drawing Sam Lantinga <slouken@libsdl.org> parents: 3454 diff changeset	1024
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1025 return 0;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1026 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1027
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1028 static int
3596 f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color. Sam Lantinga <slouken@libsdl.org> parents: 3536 diff changeset	1029 GL_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect ** rects, int count)
2925 7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1030 {
7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1031 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1032 int i;
2925 7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1033
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1034 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1035
5143 e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5141 diff changeset	1036 GL_SetBlendMode(data, renderer->blendMode);
2936 066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	1037
2925 7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1038 data->glColor4f((GLfloat) renderer->r * inv255f,
7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1039 (GLfloat) renderer->g * inv255f,
7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1040 (GLfloat) renderer->b * inv255f,
7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1041 (GLfloat) renderer->a * inv255f);
2936 066384910f50 iPhone build compiles again (drawing routines need to be implemented) Sam Lantinga <slouken@libsdl.org> parents: 2927 diff changeset	1042
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1043 for (i = 0; i < count; ++i) {
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1044 const SDL_Rect *rect = rects[i];
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1045
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1046 data->glRecti(rect->x, rect->y, rect->x + rect->w, rect->y + rect->h);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3533 diff changeset	1047 }
2925 7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1048
7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1049 return 0;
7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1050 }
7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1051
7e21f7662208 Swapped functions to match the other renderer files Sam Lantinga <slouken@libsdl.org> parents: 2922 diff changeset	1052 static int
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1053 GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1054 const SDL_Rect * srcrect, const SDL_Rect * dstrect)
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1055 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1056 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1057 GL_TextureData texturedata = (GL_TextureData ) texture->driverdata;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1058 int minx, miny, maxx, maxy;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1059 GLfloat minu, maxu, minv, maxv;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1060
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1061 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1062
2275 12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers. Sam Lantinga <slouken@libsdl.org> parents: 2246 diff changeset	1063 if (texturedata->dirty.list) {
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1064 SDL_DirtyRect *dirty;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1065 void *pixels;
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1066 int bpp = bytes_per_pixel(texture->format);
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1067 int pitch = texturedata->pitch;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1068
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1069 SetupTextureUpdate(data, texture, pitch);
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	1070 data->glEnable(texturedata->type);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1071 data->glBindTexture(texturedata->type, texturedata->texture);
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1072 for (dirty = texturedata->dirty.list; dirty; dirty = dirty->next) {
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1073 SDL_Rect *rect = &dirty->rect;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1074 pixels =
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1075 (void ) ((Uint8 ) texturedata->pixels + rect->y * pitch +
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1076 rect->x * bpp);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1077 data->glTexSubImage2D(texturedata->type, 0, rect->x, rect->y,
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	1078 rect->w / texturedata->HACK_RYAN_FIXME,
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	1079 rect->h, texturedata->format,
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1080 texturedata->formattype, pixels);
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1081 }
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1082 SDL_ClearDirtyRects(&texturedata->dirty);
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1083 }
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1084
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1085 minx = dstrect->x;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1086 miny = dstrect->y;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1087 maxx = dstrect->x + dstrect->w;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1088 maxy = dstrect->y + dstrect->h;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1089
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1090 minu = (GLfloat) srcrect->x / texture->w;
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1091 minu *= texturedata->texw;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1092 maxu = (GLfloat) (srcrect->x + srcrect->w) / texture->w;
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1093 maxu *= texturedata->texw;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1094 minv = (GLfloat) srcrect->y / texture->h;
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1095 minv *= texturedata->texh;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1096 maxv = (GLfloat) (srcrect->y + srcrect->h) / texture->h;
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1097 maxv *= texturedata->texh;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1098
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	1099 data->glEnable(texturedata->type);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1100 data->glBindTexture(texturedata->type, texturedata->texture);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1101
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1102 if (texture->modMode) {
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1103 data->glColor4f((GLfloat) texture->r * inv255f,
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1104 (GLfloat) texture->g * inv255f,
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1105 (GLfloat) texture->b * inv255f,
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1106 (GLfloat) texture->a * inv255f);
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1107 } else {
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1108 data->glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1109 }
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1975 diff changeset	1110
5143 e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5141 diff changeset	1111 GL_SetBlendMode(data, texture->blendMode);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1112
5143 e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5141 diff changeset	1113 /* Set up the shader for the copy, if any */
e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5141 diff changeset	1114 if (texturedata->shader) {
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1115 data->glEnable(GL_FRAGMENT_PROGRAM_ARB);
5143 e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5141 diff changeset	1116 data->glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, texturedata->shader);
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1117 }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1118
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1119 data->glBegin(GL_TRIANGLE_STRIP);
aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1120 data->glTexCoord2f(minu, minv);
3472 fdd2f2e9cd97 Fixed the coordinates for pixel coverage in blits Sam Lantinga <slouken@libsdl.org> parents: 3470 diff changeset	1121 data->glVertex2f((GLfloat) minx, (GLfloat) miny);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1122 data->glTexCoord2f(maxu, minv);
3472 fdd2f2e9cd97 Fixed the coordinates for pixel coverage in blits Sam Lantinga <slouken@libsdl.org> parents: 3470 diff changeset	1123 data->glVertex2f((GLfloat) maxx, (GLfloat) miny);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1124 data->glTexCoord2f(minu, maxv);
3472 fdd2f2e9cd97 Fixed the coordinates for pixel coverage in blits Sam Lantinga <slouken@libsdl.org> parents: 3470 diff changeset	1125 data->glVertex2f((GLfloat) minx, (GLfloat) maxy);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1126 data->glTexCoord2f(maxu, maxv);
3472 fdd2f2e9cd97 Fixed the coordinates for pixel coverage in blits Sam Lantinga <slouken@libsdl.org> parents: 3470 diff changeset	1127 data->glVertex2f((GLfloat) maxx, (GLfloat) maxy);
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1128 data->glEnd();
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1129
5143 e743b9c3f6d6 Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5141 diff changeset	1130 if (texturedata->shader) {
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1131 data->glDisable(GL_FRAGMENT_PROGRAM_ARB);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1132 }
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	1133
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	1134 data->glDisable(texturedata->type);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	1135
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1136 return 0;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1137 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1138
3431 c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1139 static int
c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1140 GL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1141 Uint32 pixel_format, void * pixels, int pitch)
3431 c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1142 {
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1143 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
3685 64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance. Sam Lantinga <slouken@libsdl.org> parents: 3607 diff changeset	1144 SDL_Window *window = renderer->window;
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1145 GLint internalFormat;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1146 GLenum format, type;
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1147 Uint8 src, dst, *tmp;
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1148 int length, rows;
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1149
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1150 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1151
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1152 if (!convert_format(data, pixel_format, &internalFormat, &format, &type)) {
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1153 /* FIXME: Do a temp copy to a format that is supported */
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1154 SDL_SetError("Unsupported pixel format");
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1155 return -1;
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1156 }
ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1157
3446 0f969d273f65 First pass (untested) at RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3443 diff changeset	1158 data->glPixelStorei(GL_PACK_ALIGNMENT, 1);
0f969d273f65 First pass (untested) at RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3443 diff changeset	1159 data->glPixelStorei(GL_PACK_ROW_LENGTH,
0f969d273f65 First pass (untested) at RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3443 diff changeset	1160 (pitch / bytes_per_pixel(pixel_format)));
3433 ad845d9835aa Hmm, this isn't going to work, is it? Sam Lantinga <slouken@libsdl.org> parents: 3431 diff changeset	1161
3447 294b770c1989 Fixed GL_RenderReadPixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3446 diff changeset	1162 data->glReadPixels(rect->x, (window->h-rect->y)-rect->h, rect->w, rect->h,
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1163 format, type, pixels);
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1164
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1165 /* Flip the rows to be top-down */
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1166 length = rect->w * bytes_per_pixel(pixel_format);
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1167 src = (Uint8)pixels + (rect->h-1)pitch;
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1168 dst = (Uint8*)pixels;
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1169 tmp = SDL_stack_alloc(Uint8, length);
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1170 rows = rect->h / 2;
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1171 while (rows--) {
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1172 SDL_memcpy(tmp, dst, length);
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1173 SDL_memcpy(dst, src, length);
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1174 SDL_memcpy(src, tmp, length);
3447 294b770c1989 Fixed GL_RenderReadPixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3446 diff changeset	1175 dst += pitch;
294b770c1989 Fixed GL_RenderReadPixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3446 diff changeset	1176 src -= pitch;
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1177 }
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1178 SDL_stack_free(tmp);
3440 e9502d56ae94 Added missing return values Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	1179
e9502d56ae94 Added missing return values Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	1180 return 0;
3431 c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1181 }
c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1182
c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1183 static int
c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1184 GL_RenderWritePixels(SDL_Renderer * renderer, const SDL_Rect * rect,
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1185 Uint32 pixel_format, const void * pixels, int pitch)
3431 c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1186 {
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1187 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
3685 64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance. Sam Lantinga <slouken@libsdl.org> parents: 3607 diff changeset	1188 SDL_Window *window = renderer->window;
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1189 GLint internalFormat;
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1190 GLenum format, type;
3607 8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1191 Uint8 src, dst, *tmp;
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1192 int length, rows;
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1193
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1194 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1195
3435 9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1196 if (!convert_format(data, pixel_format, &internalFormat, &format, &type)) {
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1197 /* FIXME: Do a temp copy to a format that is supported */
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1198 SDL_SetError("Unsupported pixel format");
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1199 return -1;
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1200 }
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1201
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1202 data->glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1203 data->glPixelStorei(GL_UNPACK_ROW_LENGTH,
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1204 (pitch / bytes_per_pixel(pixel_format)));
9f62f47d989b You can specify the format for pixel data in SDL_RenderReadPixels() and SDL_RenderWritePixels() Sam Lantinga <slouken@libsdl.org> parents: 3433 diff changeset	1205
3607 8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1206 /* Flip the rows to be bottom-up */
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1207 length = rect->h * rect->w * pitch;
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1208 tmp = SDL_stack_alloc(Uint8, length);
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1209 src = (Uint8)pixels + (rect->h-1)pitch;
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1210 dst = (Uint8*)tmp;
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1211 rows = rect->h;
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1212 while (rows--) {
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1213 SDL_memcpy(dst, src, pitch);
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1214 dst += pitch;
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1215 src -= pitch;
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1216 }
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1217
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1218 data->glRasterPos2i(rect->x, (window->h-rect->y));
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1219 data->glDrawPixels(rect->w, rect->h, format, type, tmp);
8b4c0320638e Fixed GL_RenderWritePixels() - thanks Ryan! Sam Lantinga <slouken@libsdl.org> parents: 3599 diff changeset	1220 SDL_stack_free(tmp);
3440 e9502d56ae94 Added missing return values Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	1221
e9502d56ae94 Added missing return values Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	1222 return 0;
3431 c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1223 }
c8fbb27627d9 Work in progress on OpenGL ReadPixels/WritePixels interface Sam Lantinga <slouken@libsdl.org> parents: 3393 diff changeset	1224
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1225 static void
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1226 GL_RenderPresent(SDL_Renderer * renderer)
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1227 {
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1228 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1229
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1230 SDL_GL_SwapWindow(renderer->window);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1231 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1232
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1233 static void
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1234 GL_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1235 {
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1236 GL_RenderData renderdata = (GL_RenderData ) renderer->driverdata;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1237 GL_TextureData data = (GL_TextureData ) texture->driverdata;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1238
5150 ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1239 GL_ActivateRenderer(renderer);
ad50b3db78bd The rendering functions take a context so it's clear what window they're drawing to. This also potentially opens to the door to multi-threaded rendering in the future. Sam Lantinga <slouken@libsdl.org> parents: 5145 diff changeset	1240
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1241 if (!data) {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1242 return;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1243 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1244 if (data->texture) {
1927 aeb8263d377a OpenGL renderer is feature complete! Sam Lantinga <slouken@libsdl.org> parents: 1926 diff changeset	1245 renderdata->glDeleteTextures(1, &data->texture);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1246 }
1974 70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	1247 if (data->palette) {
70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	1248 SDL_free(data->palette);
70deaf574153 Added paletted OpenGL texture support. Sam Lantinga <slouken@libsdl.org> parents: 1970 diff changeset	1249 }
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1250 if (data->pixels) {
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1251 SDL_free(data->pixels);
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1252 }
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1253 SDL_FreeDirtyRects(&data->dirty);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1254 SDL_free(data);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1255 texture->driverdata = NULL;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1256 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1257
1975 ccef0d0c40c6 Added resize support for GDI and Direct3D renderers Sam Lantinga <slouken@libsdl.org> parents: 1974 diff changeset	1258 static void
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1259 GL_DestroyRenderer(SDL_Renderer * renderer)
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1260 {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1261 GL_RenderData data = (GL_RenderData ) renderer->driverdata;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1262
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1263 if (data) {
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1264 if (data->context) {
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1265 if (data->GL_ARB_fragment_program_supported) {
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1266 data->glDisable(GL_FRAGMENT_PROGRAM_ARB);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1267 data->glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, 0);
3468 789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	1268 if (data->fragment_program_UYVY &&
789b97008d8a My first OpenGL shader! Momma will be so proud! Sam Lantinga <slouken@libsdl.org> parents: 3458 diff changeset	1269 data->fragment_program_UYVY != ~0) {
2884 9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	1270 data->glDeleteProgramsARB(1,
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100 Sam Lantinga <slouken@libsdl.org> parents: 2858 diff changeset	1271 &data->fragment_program_UYVY);
2835 f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1272 }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1273 }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer. Ryan C. Gordon <icculus@icculus.org> parents: 2833 diff changeset	1274
2328 91e601d9df8b re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being Bob Pendleton <bob@pendleton.com> parents: 2295 diff changeset	1275 /* SDL_GL_MakeCurrent(0, NULL); // doesn't do anything */
1920 8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. Sam Lantinga <slouken@libsdl.org> parents: 1919 diff changeset	1276 SDL_GL_DeleteContext(data->context);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1277 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1278 SDL_free(data);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1279 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1280 SDL_free(renderer);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1281 }
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1282
1952 420716272158 Implemented X11 OpenGL support. Sam Lantinga <slouken@libsdl.org> parents: 1928 diff changeset	1283 #endif /* SDL_VIDEO_RENDER_OGL */
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1284
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1285 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/video/SDL_renderer_gl.c @ 5153:1435f8a6425c