sdl-ios-xcode: src/render/software/SDL_render

annotate src/render/software/SDL_render_sw.c @ 5259:f650566b2f51

Added a very simple example of texture streaming

author	Sam Lantinga <slouken@libsdl.org>
date	Fri, 11 Feb 2011 12:24:59 -0800
parents	710d00cb3a6a
children	b530ef003506

rev	line source
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. 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
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Lesser General Public License for more details.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free Software
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 #include "SDL_config.h"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
5231 710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render Sam Lantinga <slouken@libsdl.org> parents: 5229 diff changeset	24 #if !SDL_RENDER_DISABLED
710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render Sam Lantinga <slouken@libsdl.org> parents: 5229 diff changeset	25
5157 fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	26 #include "../SDL_sysrender.h"
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	27 #include "../../video/SDL_pixels_c.h"
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28
5166 d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 5160 diff changeset	29 #include "SDL_draw.h"
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 5160 diff changeset	30 #include "SDL_blendfillrect.h"
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 5160 diff changeset	31 #include "SDL_blendline.h"
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 5160 diff changeset	32 #include "SDL_blendpoint.h"
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 5160 diff changeset	33 #include "SDL_drawline.h"
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 5160 diff changeset	34 #include "SDL_drawpoint.h"
d72793305335 Making the API simpler, moved the surface drawing functions to the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 5160 diff changeset	35
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37 /* SDL surface based renderer implementation */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	39 static SDL_Renderer SW_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	40 static void SW_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	41 const SDL_WindowEvent *event);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	42 static int SW_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	43 static int SW_SetTextureColorMod(SDL_Renderer * renderer,
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	44 SDL_Texture * texture);
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	45 static int SW_SetTextureAlphaMod(SDL_Renderer * renderer,
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	46 SDL_Texture * texture);
5144 31e7f523ab3d Making the API simpler, texture color and alpha modulation are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5143 diff changeset	47 static int SW_SetTextureBlendMode(SDL_Renderer * renderer,
31e7f523ab3d Making the API simpler, texture color and alpha modulation are supported by all renderers. Sam Lantinga <slouken@libsdl.org> parents: 5143 diff changeset	48 SDL_Texture * texture);
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	49 static int SW_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	50 const SDL_Rect * rect, const void *pixels,
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	51 int pitch);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	52 static int SW_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	53 const SDL_Rect * rect, void *pixels, int pitch);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	54 static void SW_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture);
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	55 static void SW_SetClipRect(SDL_Renderer * renderer, const SDL_Rect * rect);
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	56 static int SW_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	57 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	58 static int SW_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	59 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	60 static int SW_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	61 const SDL_Rect ** rects, int count);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	62 static int SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	63 const SDL_Rect * srcrect, const SDL_Rect * dstrect);
3427 36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	64 static int SW_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: 3427 diff changeset	65 Uint32 format, void * pixels, int pitch);
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	66 static void SW_RenderPresent(SDL_Renderer * renderer);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	67 static void SW_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture);
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	68 static void SW_DestroyRenderer(SDL_Renderer * renderer);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	71 SDL_RenderDriver SW_RenderDriver = {
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	72 SW_CreateRenderer,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74 "software",
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	75 0,
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	76 8,
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 {
1965 a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1930 diff changeset	78 SDL_PIXELFORMAT_RGB555,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1930 diff changeset	79 SDL_PIXELFORMAT_RGB565,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1930 diff changeset	80 SDL_PIXELFORMAT_RGB888,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1930 diff changeset	81 SDL_PIXELFORMAT_BGR888,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1930 diff changeset	82 SDL_PIXELFORMAT_ARGB8888,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1930 diff changeset	83 SDL_PIXELFORMAT_RGBA8888,
a788656ca29a SDL constants are all uppercase. Sam Lantinga <slouken@libsdl.org> parents: 1930 diff changeset	84 SDL_PIXELFORMAT_ABGR8888,
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	85 SDL_PIXELFORMAT_BGRA8888
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	86 },
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 0,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88 0}
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 };
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91 typedef struct
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92 {
1972 a0e278364188 Fixed bug recreating OpenGL textures on window resize Sam Lantinga <slouken@libsdl.org> parents: 1971 diff changeset	93 SDL_bool updateSize;
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	94 SDL_Surface *surface;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	95 } SW_RenderData;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96
1907 06c27a737b7a Streamlined the API a bit and optimized the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 1897 diff changeset	97
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 SDL_Renderer *
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	99 SW_CreateRendererForSurface(SDL_Surface * surface)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101 SDL_Renderer *renderer;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	102 SW_RenderData *data;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	104 if (!surface) {
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	105 SDL_SetError("Can't create renderer for NULL surface");
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 renderer = (SDL_Renderer ) SDL_calloc(1, sizeof(renderer));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110 if (!renderer) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114
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: 1918 diff changeset	115 data = (SW_RenderData ) SDL_calloc(1, sizeof(data));
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 if (!data) {
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	117 SW_DestroyRenderer(renderer);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120 }
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	121 data->surface = surface;
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	122
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	123 renderer->WindowEvent = SW_WindowEvent;
5157 fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	124 renderer->CreateTexture = SW_CreateTexture;
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	125 renderer->SetTextureColorMod = SW_SetTextureColorMod;
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	126 renderer->SetTextureAlphaMod = SW_SetTextureAlphaMod;
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	127 renderer->SetTextureBlendMode = SW_SetTextureBlendMode;
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	128 renderer->UpdateTexture = SW_UpdateTexture;
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	129 renderer->LockTexture = SW_LockTexture;
fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	130 renderer->UnlockTexture = SW_UnlockTexture;
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	131 renderer->SetClipRect = SW_SetClipRect;
5157 fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	132 renderer->DestroyTexture = SW_DestroyTexture;
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	133 renderer->RenderDrawPoints = SW_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	134 renderer->RenderDrawLines = SW_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	135 renderer->RenderFillRects = SW_RenderFillRects;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	136 renderer->RenderCopy = SW_RenderCopy;
3427 36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	137 renderer->RenderReadPixels = SW_RenderReadPixels;
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	138 renderer->RenderPresent = SW_RenderPresent;
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	139 renderer->DestroyRenderer = SW_DestroyRenderer;
5157 fb424691cfc7 Moved the rendering code out to a separate directory in the hope that it can someday be completely decoupled from the rest of the library and be expanded to an awesome 2D on 3D library. Sam Lantinga <slouken@libsdl.org> parents: 5152 diff changeset	140 renderer->info = SW_RenderDriver.info;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141 renderer->driverdata = data;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 return renderer;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	146 SDL_Renderer *
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	147 SW_CreateRenderer(SDL_Window * window, Uint32 flags)
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	148 {
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	149 SDL_Surface *surface;
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	150
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	151 surface = SDL_GetWindowSurface(window);
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	152 if (!surface) {
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	153 return NULL;
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	154 }
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	155 return SW_CreateRendererForSurface(surface);
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	156 }
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	157
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	158 static SDL_Surface *
1970 db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	159 SW_ActivateRenderer(SDL_Renderer * renderer)
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	160 {
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	161 SW_RenderData data = (SW_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: 3599 diff changeset	162 SDL_Window *window = renderer->window;
1970 db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	163
1972 a0e278364188 Fixed bug recreating OpenGL textures on window resize Sam Lantinga <slouken@libsdl.org> parents: 1971 diff changeset	164 if (data->updateSize) {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	165 data->surface = SDL_GetWindowSurface(window);
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	166 data->updateSize = SDL_FALSE;
1972 a0e278364188 Fixed bug recreating OpenGL textures on window resize Sam Lantinga <slouken@libsdl.org> parents: 1971 diff changeset	167 }
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	168 return data->surface;
1970 db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	169 }
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	170
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	171 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	172 SW_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	173 {
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	174 SW_RenderData data = (SW_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	175
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	176 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	177 data->updateSize = SDL_TRUE;
1970 db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	178 }
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	179 }
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	180
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes. Sam Lantinga <slouken@libsdl.org> parents: 1965 diff changeset	181 static int
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	182 SW_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	183 {
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	184 int bpp;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	185 Uint32 Rmask, Gmask, Bmask, Amask;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	186
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	187 if (!SDL_PixelFormatEnumToMasks
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	188 (texture->format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	189 SDL_SetError("Unknown texture format");
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	190 return -1;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	191 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	192
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	193 texture->driverdata =
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	194 SDL_CreateRGBSurface(0, texture->w, texture->h, bpp, Rmask, Gmask,
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	195 Bmask, Amask);
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	196 SDL_SetSurfaceColorMod(texture->driverdata, texture->r, texture->g,
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	197 texture->b);
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	198 SDL_SetSurfaceAlphaMod(texture->driverdata, texture->a);
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	199 SDL_SetSurfaceBlendMode(texture->driverdata, texture->blendMode);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	200
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	201 if (texture->access == SDL_TEXTUREACCESS_STATIC) {
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	202 SDL_SetSurfaceRLE(texture->driverdata, 1);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	203 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	204
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	205 if (!texture->driverdata) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	206 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	207 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	208 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	209 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	210
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	211 static int
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	212 SW_SetTextureColorMod(SDL_Renderer * renderer, SDL_Texture * texture)
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	213 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	214 SDL_Surface surface = (SDL_Surface ) texture->driverdata;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	215 return SDL_SetSurfaceColorMod(surface, texture->r, texture->g,
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	216 texture->b);
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	217 }
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	218
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	219 static int
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	220 SW_SetTextureAlphaMod(SDL_Renderer * renderer, SDL_Texture * texture)
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	221 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	222 SDL_Surface surface = (SDL_Surface ) texture->driverdata;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	223 return SDL_SetSurfaceAlphaMod(surface, texture->a);
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	224 }
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	225
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	226 static int
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	227 SW_SetTextureBlendMode(SDL_Renderer * renderer, SDL_Texture * texture)
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	228 {
2267 c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	229 SDL_Surface surface = (SDL_Surface ) texture->driverdata;
c785543d1843 Okay, still some bugs, but everything builds again... Sam Lantinga <slouken@libsdl.org> parents: 2262 diff changeset	230 return SDL_SetSurfaceBlendMode(surface, texture->blendMode);
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	231 }
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	232
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	233 static int
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	234 SW_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	235 const SDL_Rect * rect, const void *pixels, int pitch)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	236 {
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	237 SDL_Surface surface = (SDL_Surface ) texture->driverdata;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	238 Uint8 src, dst;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	239 int row;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	240 size_t length;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	241
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	242 src = (Uint8 *) pixels;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	243 dst = (Uint8 *) surface->pixels +
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	244 rect->y * surface->pitch +
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	245 rect->x * surface->format->BytesPerPixel;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	246 length = rect->w * surface->format->BytesPerPixel;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	247 for (row = 0; row < rect->h; ++row) {
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	248 SDL_memcpy(dst, src, length);
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	249 src += pitch;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	250 dst += surface->pitch;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	251 }
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	252 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	253 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	254
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	255 static int
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	256 SW_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	257 const SDL_Rect * rect, void *pixels, int pitch)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	258 {
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	259 SDL_Surface surface = (SDL_Surface ) texture->driverdata;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	260
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	261 *pixels =
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	262 (void ) ((Uint8 ) surface->pixels + rect->y * surface->pitch +
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	263 rect->x * surface->format->BytesPerPixel);
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	264 *pitch = surface->pitch;
307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	265 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	266 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	267
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	268 static void
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	269 SW_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	270 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	271 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	272
5229 2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	273 static void
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	274 SW_SetClipRect(SDL_Renderer * renderer, const SDL_Rect * rect)
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	275 {
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	276 SDL_Surface *surface = SW_ActivateRenderer(renderer);
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	277
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	278 if (!surface) {
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	279 return;
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	280 }
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	281 SDL_SetClipRect(surface, rect);
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	282 }
2178ffe17222 Added function SDL_RenderSetClipRect() Sam Lantinga <slouken@libsdl.org> parents: 5198 diff changeset	283
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	284 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	285 SW_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	286 int count)
2901 133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2891 diff changeset	287 {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	288 SDL_Surface *surface = SW_ActivateRenderer(renderer);
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	289
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	290 if (!surface) {
2901 133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2891 diff changeset	291 return -1;
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2891 diff changeset	292 }
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2891 diff changeset	293
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	294 /* Draw the points! */
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	295 if (renderer->blendMode == SDL_BLENDMODE_NONE) {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	296 Uint32 color = SDL_MapRGBA(surface->format,
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	297 renderer->r, renderer->g, renderer->b,
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	298 renderer->a);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	299
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	300 return SDL_DrawPoints(surface, points, count, color);
2901 133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2891 diff changeset	301 } else {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	302 return SDL_BlendPoints(surface, points, count,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	303 renderer->blendMode,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	304 renderer->r, renderer->g, renderer->b,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	305 renderer->a);
2901 133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2891 diff changeset	306 }
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2891 diff changeset	307 }
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2891 diff changeset	308
133601e3b255 Added RenderPiont() API Sam Lantinga <slouken@libsdl.org> parents: 2891 diff changeset	309 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	310 SW_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	311 int count)
2888 32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing Sam Lantinga <slouken@libsdl.org> parents: 2884 diff changeset	312 {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	313 SDL_Surface *surface = SW_ActivateRenderer(renderer);
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	314
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	315 if (!surface) {
2888 32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing Sam Lantinga <slouken@libsdl.org> parents: 2884 diff changeset	316 return -1;
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing Sam Lantinga <slouken@libsdl.org> parents: 2884 diff changeset	317 }
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing Sam Lantinga <slouken@libsdl.org> parents: 2884 diff changeset	318
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	319 /* Draw the lines! */
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	320 if (renderer->blendMode == SDL_BLENDMODE_NONE) {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	321 Uint32 color = SDL_MapRGBA(surface->format,
3536 0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	322 renderer->r, renderer->g, renderer->b,
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	323 renderer->a);
0267b8b1595c Added interfaces for batch drawing of points, lines and rects: Sam Lantinga <slouken@libsdl.org> parents: 3435 diff changeset	324
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	325 return SDL_DrawLines(surface, points, count, color);
2888 32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing Sam Lantinga <slouken@libsdl.org> parents: 2884 diff changeset	326 } else {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	327 return SDL_BlendLines(surface, points, count,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	328 renderer->blendMode,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	329 renderer->r, renderer->g, renderer->b,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	330 renderer->a);
2888 32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing Sam Lantinga <slouken@libsdl.org> parents: 2884 diff changeset	331 }
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing Sam Lantinga <slouken@libsdl.org> parents: 2884 diff changeset	332 }
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing Sam Lantinga <slouken@libsdl.org> parents: 2884 diff changeset	333
32e8bbba1e94 Added stubs for software implementations of blending fills and line drawing Sam Lantinga <slouken@libsdl.org> parents: 2884 diff changeset	334 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	335 SW_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect ** rects,
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	336 int count)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	337 {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	338 SDL_Surface *surface = SW_ActivateRenderer(renderer);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	339
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	340 if (!surface) {
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	341 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	342 }
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	343
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	344 if (renderer->blendMode == SDL_BLENDMODE_NONE) {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	345 Uint32 color = SDL_MapRGBA(surface->format,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	346 renderer->r, renderer->g, renderer->b,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	347 renderer->a);
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	348 return SDL_FillRects(surface, rects, count, color);
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	349 } else {
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	350 return SDL_BlendFillRects(surface, rects, count,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	351 renderer->blendMode,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	352 renderer->r, renderer->g, renderer->b,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	353 renderer->a);
1907 06c27a737b7a Streamlined the API a bit and optimized the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 1897 diff changeset	354 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	355 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	356
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	357 static int
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	358 SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1972 diff changeset	359 const SDL_Rect * srcrect, const SDL_Rect * dstrect)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	360 {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	361 SDL_Surface *surface = SW_ActivateRenderer(renderer);
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	362 SDL_Surface src = (SDL_Surface ) texture->driverdata;
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	363 SDL_Rect final_rect = *dstrect;
1907 06c27a737b7a Streamlined the API a bit and optimized the software renderer. Sam Lantinga <slouken@libsdl.org> parents: 1897 diff changeset	364
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	365 if (!surface) {
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	366 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	367 }
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	368 return SDL_BlitSurface(src, srcrect, surface, &final_rect);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	369 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	370
3427 36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	371 static int
36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	372 SW_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: 3427 diff changeset	373 Uint32 format, void * pixels, int pitch)
3427 36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	374 {
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	375 SDL_Surface *surface = SW_ActivateRenderer(renderer);
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	376 Uint32 src_format;
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	377 void *src_pixels;
3427 36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	378
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	379 if (!surface) {
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	380 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	381 }
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	382
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	383 if (rect->x < 0 \|\| rect->x+rect->w > surface->w \|\|
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	384 rect->y < 0 \|\| rect->y+rect->h > surface->h) {
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	385 SDL_SetError("Tried to read outside of surface bounds");
3427 36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	386 return -1;
36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	387 }
36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	388
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	389 src_format = SDL_MasksToPixelFormatEnum(
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	390 surface->format->BitsPerPixel,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	391 surface->format->Rmask, surface->format->Gmask,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	392 surface->format->Bmask, surface->format->Amask);
3427 36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	393
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	394 src_pixels = (void)((Uint8 ) surface->pixels +
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	395 rect->y * surface->pitch +
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	396 rect->x * surface->format->BytesPerPixel);
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	397
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	398 return SDL_ConvertPixels(rect->w, rect->h,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	399 src_format, src_pixels, surface->pitch,
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	400 format, pixels, pitch);
3427 36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	401 }
36cf454ba065 Work in progress on implementation of SDL_RenderReadPixels() and SDL_RenderWritePixels(), code untested. Sam Lantinga <slouken@libsdl.org> parents: 3053 diff changeset	402
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	403 static void
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	404 SW_RenderPresent(SDL_Renderer * renderer)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	405 {
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	406 SW_RenderData data = (SW_RenderData ) renderer->driverdata;
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	407 SDL_Window *window = renderer->window;
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
5169 4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	409 if (window) {
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	410 SDL_UpdateWindowSurface(window);
4d39eeaad00b Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface. Sam Lantinga <slouken@libsdl.org> parents: 5166 diff changeset	411 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	412 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	413
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	414 static void
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	415 SW_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	416 {
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	417 SDL_Surface surface = (SDL_Surface ) texture->driverdata;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	418
5159 307ccc9c135e Made it possible to create a texture of any format, even if not supported by the renderer. Sam Lantinga <slouken@libsdl.org> parents: 5157 diff changeset	419 SDL_FreeSurface(surface);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	420 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	421
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	422 static void
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	423 SW_DestroyRenderer(SDL_Renderer * renderer)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	424 {
1918 092bd3a019c5 Starting on the OpenGL renderer... Sam Lantinga <slouken@libsdl.org> parents: 1907 diff changeset	425 SW_RenderData data = (SW_RenderData ) renderer->driverdata;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	426
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	427 if (data) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	428 SDL_free(data);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	429 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	430 SDL_free(renderer);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	431 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	432
5231 710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render Sam Lantinga <slouken@libsdl.org> parents: 5229 diff changeset	433 #endif /* !SDL_RENDER_DISABLED */
710d00cb3a6a Made it possible to disable the rendering subsystem with configure --disable-render Sam Lantinga <slouken@libsdl.org> parents: 5229 diff changeset	434
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: diff changeset	435 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/render/software/SDL_render_sw.c @ 5259:f650566b2f51