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

annotate src/render/software/SDL_render_sw.c @ 5282:8e421890cdb8

Fixed bug #1117 There's a new event that's always sent when the window changes size, and that event is what the renderers listen for to determine if they need to rebind their context.

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 12 Feb 2011 19:02:14 -0800
parents	b530ef003506
children

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
5267 b530ef003506 Happy 2011! :) Sam Lantinga <slouken@libsdl.org> parents: 5231 diff changeset	3 Copyright (C) 1997-2011 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
5282 8e421890cdb8 Fixed bug #1117 Sam Lantinga <slouken@libsdl.org> parents: 5267 diff changeset	176 if (event->event == SDL_WINDOWEVENT_SIZE_CHANGED) {
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	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 @ 5282:8e421890cdb8