src/video/SDL_renderer_gl.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 20 Dec 2008 12:00:00 +0000
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parent 2858 a38fcb093081
child 2893 e67f3f3bf221
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Date: Fri, 19 Dec 2008 20:17:35 +0100 From: Couriersud Subject: Re: Aw: Experience using SDL1.3 in sdlmame/Proposal for api additions > For consistency you'd probably want: > SDL_SetRenderDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a); > SDL_SetRenderDrawBlendMode(SDL_BlendMode blendMode); > SDL_RenderLine(int x1, int y1, int x2, int y2); > SDL_RenderFill(SDL_Rect *rect); > > You probably also want to add API functions query the current state. > I have implemented the above api for the opengl, x11, directfb and software renderers. I have also renamed *TEXTUREBLENDMODE* constants to BLENDMODE*. The unix build compiles. The windows renderer still needs to be updated, but I have no windows development machine at hand. Have a look at the x11 renderer for a sample. Vector games now run at 90% both on opengl and directfb in comparison to sdlmame's own opengl renderer. The same applies to raster games. The diff also includes a) Changed XDrawRect to XFillRect in x11 renderer b) A number of changes to fix blending and modulation issues in the directfb renderer.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2009 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#if SDL_VIDEO_RENDER_OGL
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#include "SDL_video.h"
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#include "SDL_opengl.h"
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#include "SDL_sysvideo.h"
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#include "SDL_pixels_c.h"
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#include "SDL_rect_c.h"
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#include "SDL_yuv_sw_c.h"
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#ifdef __MACOSX__
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#include <OpenGL/OpenGL.h>
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#endif
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/* OpenGL renderer implementation */
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/* Details on optimizing the texture path on Mac OS X:
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   http://developer.apple.com/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_texturedata/chapter_10_section_2.html
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*/
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/* !!! FIXME: this should go in a higher level than the GL renderer. */
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static __inline__ int
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bytes_per_pixel(const Uint32 format)
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{
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    if (!SDL_ISPIXELFORMAT_FOURCC(format)) {
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        return SDL_BYTESPERPIXEL(format);
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    }
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    /* FOURCC format */
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    switch (format) {
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    case SDL_PIXELFORMAT_YV12:
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    case SDL_PIXELFORMAT_IYUV:
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    case SDL_PIXELFORMAT_YUY2:
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    case SDL_PIXELFORMAT_UYVY:
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    case SDL_PIXELFORMAT_YVYU:
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        return 2;
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    default:
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        return 1;               /* shouldn't ever hit this. */
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    }
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}
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static const float inv255f = 1.0f / 255.0f;
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static SDL_Renderer *GL_CreateRenderer(SDL_Window * window, Uint32 flags);
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static int GL_ActivateRenderer(SDL_Renderer * renderer);
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static int GL_DisplayModeChanged(SDL_Renderer * renderer);
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static int GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);
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static int GL_QueryTexturePixels(SDL_Renderer * renderer,
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                                 SDL_Texture * texture, void **pixels,
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                                 int *pitch);
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static int GL_SetTexturePalette(SDL_Renderer * renderer,
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                                SDL_Texture * texture,
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                                const SDL_Color * colors, int firstcolor,
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                                int ncolors);
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static int GL_GetTexturePalette(SDL_Renderer * renderer,
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                                SDL_Texture * texture, SDL_Color * colors,
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                                int firstcolor, int ncolors);
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static int GL_SetTextureColorMod(SDL_Renderer * renderer,
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                                 SDL_Texture * texture);
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static int GL_SetTextureAlphaMod(SDL_Renderer * renderer,
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                                 SDL_Texture * texture);
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static int GL_SetTextureBlendMode(SDL_Renderer * renderer,
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                                  SDL_Texture * texture);
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static int GL_SetTextureScaleMode(SDL_Renderer * renderer,
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                                  SDL_Texture * texture);
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static int GL_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
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                            const SDL_Rect * rect, const void *pixels,
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                            int pitch);
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static int GL_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
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                          const SDL_Rect * rect, int markDirty, void **pixels,
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                          int *pitch);
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static void GL_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture);
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static void GL_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture,
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                            int numrects, const SDL_Rect * rects);
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static int GL_SetDrawColor(SDL_Renderer * renderer);
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static int GL_SetDrawBlendMode(SDL_Renderer * renderer);
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static int GL_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2,
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                         int y2);
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static int GL_RenderFill(SDL_Renderer * renderer, const SDL_Rect * rect);
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static int GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
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                         const SDL_Rect * srcrect, const SDL_Rect * dstrect);
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static void GL_RenderPresent(SDL_Renderer * renderer);
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static void GL_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture);
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static void GL_DestroyRenderer(SDL_Renderer * renderer);
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SDL_RenderDriver GL_RenderDriver = {
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    GL_CreateRenderer,
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    {
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     "opengl",
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     (SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD |
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      SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED),
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     (SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR |
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      SDL_TEXTUREMODULATE_ALPHA),
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     (SDL_BLENDMODE_NONE | SDL_BLENDMODE_MASK |
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      SDL_BLENDMODE_BLEND | SDL_BLENDMODE_ADD | SDL_BLENDMODE_MOD),
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     (SDL_TEXTURESCALEMODE_NONE | SDL_TEXTURESCALEMODE_FAST |
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      SDL_TEXTURESCALEMODE_SLOW),
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     15,
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     {
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      SDL_PIXELFORMAT_INDEX1LSB,
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      SDL_PIXELFORMAT_INDEX1MSB,
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      SDL_PIXELFORMAT_INDEX8,
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      SDL_PIXELFORMAT_RGB332,
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      SDL_PIXELFORMAT_RGB444,
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      SDL_PIXELFORMAT_RGB555,
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      SDL_PIXELFORMAT_ARGB4444,
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      SDL_PIXELFORMAT_ARGB1555,
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      SDL_PIXELFORMAT_RGB565,
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      SDL_PIXELFORMAT_RGB24,
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      SDL_PIXELFORMAT_BGR24,
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      SDL_PIXELFORMAT_RGB888,
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      SDL_PIXELFORMAT_BGR888,
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      SDL_PIXELFORMAT_ARGB8888,
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      SDL_PIXELFORMAT_ABGR8888,
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      SDL_PIXELFORMAT_ARGB2101010},
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     0,
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     0}
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};
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typedef struct
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{
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    SDL_GLContext context;
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    SDL_bool updateSize;
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    SDL_bool GL_ARB_texture_rectangle_supported;
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    SDL_bool GL_EXT_paletted_texture_supported;
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    SDL_bool GL_APPLE_ycbcr_422_supported;
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    SDL_bool GL_MESA_ycbcr_texture_supported;
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    SDL_bool GL_ARB_fragment_program_supported;
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    int blendMode;
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    int scaleMode;
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    /* OpenGL functions */
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#define SDL_PROC(ret,func,params) ret (APIENTRY *func) params;
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#include "SDL_glfuncs.h"
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#undef SDL_PROC
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    PFNGLCOLORTABLEEXTPROC glColorTableEXT;
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    void (*glTextureRangeAPPLE) (GLenum target, GLsizei length,
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                                 const GLvoid * pointer);
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    PFNGLGETPROGRAMIVARBPROC glGetProgramivARB;
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    PFNGLGETPROGRAMSTRINGARBPROC glGetProgramStringARB;
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    PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB;
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    PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB;
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    PFNGLGENPROGRAMSARBPROC glGenProgramsARB;
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    PFNGLBINDPROGRAMARBPROC glBindProgramARB;
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    PFNGLPROGRAMSTRINGARBPROC glProgramStringARB;
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    /* (optional) fragment programs */
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    GLuint fragment_program_UYVY;
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} GL_RenderData;
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typedef struct
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{
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    GLuint texture;
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    GLuint shader;
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    GLenum type;
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    GLfloat texw;
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    GLfloat texh;
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    GLenum format;
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    GLenum formattype;
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    Uint8 *palette;
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    void *pixels;
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    int pitch;
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    SDL_DirtyRectList dirty;
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    int HACK_RYAN_FIXME;
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} GL_TextureData;
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static void
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GL_SetError(const char *prefix, GLenum result)
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{
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    const char *error;
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    switch (result) {
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    case GL_NO_ERROR:
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        error = "GL_NO_ERROR";
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        break;
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    case GL_INVALID_ENUM:
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        error = "GL_INVALID_ENUM";
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        break;
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   208
    case GL_INVALID_VALUE:
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   209
        error = "GL_INVALID_VALUE";
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   210
        break;
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   211
    case GL_INVALID_OPERATION:
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        error = "GL_INVALID_OPERATION";
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   213
        break;
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   214
    case GL_STACK_OVERFLOW:
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        error = "GL_STACK_OVERFLOW";
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   216
        break;
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   217
    case GL_STACK_UNDERFLOW:
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   218
        error = "GL_STACK_UNDERFLOW";
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   219
        break;
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   220
    case GL_OUT_OF_MEMORY:
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   221
        error = "GL_OUT_OF_MEMORY";
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   222
        break;
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   223
    case GL_TABLE_TOO_LARGE:
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   224
        error = "GL_TABLE_TOO_LARGE";
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   225
        break;
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   226
    default:
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   227
        error = "UNKNOWN";
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   228
        break;
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   229
    }
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   230
    SDL_SetError("%s: %s", prefix, error);
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   231
}
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   232
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static int
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GL_LoadFunctions(GL_RenderData * data)
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{
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#if defined(__QNXNTO__) && (_NTO_VERSION < 630)
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#define __SDL_NOGETPROCADDR__
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   238
#elif defined(__MINT__)
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#define __SDL_NOGETPROCADDR__
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   240
#endif
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   241
#ifdef __SDL_NOGETPROCADDR__
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#define SDL_PROC(ret,func,params) data->func=func;
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   243
#else
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   244
#define SDL_PROC(ret,func,params) \
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   245
    do { \
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   246
        data->func = SDL_GL_GetProcAddress(#func); \
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   247
        if ( ! data->func ) { \
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   248
            SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \
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   249
            return -1; \
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parents: 1926
diff changeset
   250
        } \
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   251
    } while ( 0 );
aeb8263d377a OpenGL renderer is feature complete!
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parents: 1926
diff changeset
   252
#endif /* __SDL_NOGETPROCADDR__ */
aeb8263d377a OpenGL renderer is feature complete!
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diff changeset
   253
aeb8263d377a OpenGL renderer is feature complete!
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parents: 1926
diff changeset
   254
#include "SDL_glfuncs.h"
aeb8263d377a OpenGL renderer is feature complete!
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diff changeset
   255
#undef SDL_PROC
aeb8263d377a OpenGL renderer is feature complete!
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parents: 1926
diff changeset
   256
    return 0;
aeb8263d377a OpenGL renderer is feature complete!
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parents: 1926
diff changeset
   257
}
aeb8263d377a OpenGL renderer is feature complete!
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parents: 1926
diff changeset
   258
1918
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   259
void
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   260
GL_AddRenderDriver(_THIS)
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   261
{
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   262
    if (_this->GL_CreateContext) {
1918
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   263
        SDL_AddRenderDriver(0, &GL_RenderDriver);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   264
    }
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   265
}
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   266
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   267
SDL_Renderer *
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   268
GL_CreateRenderer(SDL_Window * window, Uint32 flags)
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   269
{
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   270
    SDL_Renderer *renderer;
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   271
    GL_RenderData *data;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   272
    GLint value;
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   273
    int doublebuffer;
1918
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   274
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   275
    /* Render directly to the window, unless we're compositing */
70deaf574153 Added paletted OpenGL texture support.
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parents: 1970
diff changeset
   276
#ifndef __MACOSX__
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   277
    if (flags & SDL_RENDERER_SINGLEBUFFER) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   278
        SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 0);
70deaf574153 Added paletted OpenGL texture support.
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parents: 1970
diff changeset
   279
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   280
#endif
1918
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   281
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
1928
861bc36f0ab3 Fixed crash with multiple windows
Sam Lantinga <slouken@libsdl.org>
parents: 1927
diff changeset
   282
        if (SDL_RecreateWindow(window, window->flags | SDL_WINDOW_OPENGL) < 0) {
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   283
            return NULL;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   284
        }
1918
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   285
    }
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   286
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   287
    renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
1918
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   288
    if (!renderer) {
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   289
        SDL_OutOfMemory();
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   290
        return NULL;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   291
    }
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   292
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   293
    data = (GL_RenderData *) SDL_calloc(1, sizeof(*data));
1918
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   294
    if (!data) {
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   295
        GL_DestroyRenderer(renderer);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   296
        SDL_OutOfMemory();
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   297
        return NULL;
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   298
    }
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   299
1923
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   300
    renderer->ActivateRenderer = GL_ActivateRenderer;
1970
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   301
    renderer->DisplayModeChanged = GL_DisplayModeChanged;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   302
    renderer->CreateTexture = GL_CreateTexture;
2222
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   303
    renderer->QueryTexturePixels = GL_QueryTexturePixels;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   304
    renderer->SetTexturePalette = GL_SetTexturePalette;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   305
    renderer->GetTexturePalette = GL_GetTexturePalette;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   306
    renderer->SetTextureColorMod = GL_SetTextureColorMod;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   307
    renderer->SetTextureAlphaMod = GL_SetTextureAlphaMod;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   308
    renderer->SetTextureBlendMode = GL_SetTextureBlendMode;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   309
    renderer->SetTextureScaleMode = GL_SetTextureScaleMode;
1918
092bd3a019c5 Starting on the OpenGL renderer...
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parents:
diff changeset
   310
    renderer->UpdateTexture = GL_UpdateTexture;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   311
    renderer->LockTexture = GL_LockTexture;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   312
    renderer->UnlockTexture = GL_UnlockTexture;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   313
    renderer->DirtyTexture = GL_DirtyTexture;
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   314
    renderer->SetDrawColor = GL_SetDrawColor;
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   315
    renderer->SetDrawBlendMode = GL_SetDrawBlendMode;
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   316
    renderer->RenderLine = GL_RenderLine;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   317
    renderer->RenderFill = GL_RenderFill;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   318
    renderer->RenderCopy = GL_RenderCopy;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   319
    renderer->RenderPresent = GL_RenderPresent;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   320
    renderer->DestroyTexture = GL_DestroyTexture;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   321
    renderer->DestroyRenderer = GL_DestroyRenderer;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   322
    renderer->info = GL_RenderDriver.info;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   323
    renderer->window = window->id;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   324
    renderer->driverdata = data;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   325
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   326
    renderer->info.flags =
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   327
        (SDL_RENDERER_PRESENTDISCARD | SDL_RENDERER_ACCELERATED);
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   328
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   329
    if (GL_LoadFunctions(data) < 0) {
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   330
        GL_DestroyRenderer(renderer);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   331
        return NULL;
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   332
    }
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   333
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   334
    data->context = SDL_GL_CreateContext(window->id);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   335
    if (!data->context) {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   336
        GL_DestroyRenderer(renderer);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   337
        return NULL;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   338
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   339
    if (SDL_GL_MakeCurrent(window->id, data->context) < 0) {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   340
        GL_DestroyRenderer(renderer);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   341
        return NULL;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   342
    }
2246
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO
Sam Lantinga <slouken@libsdl.org>
parents: 2237
diff changeset
   343
#ifdef __MACOSX__
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO
Sam Lantinga <slouken@libsdl.org>
parents: 2237
diff changeset
   344
    /* Enable multi-threaded rendering */
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO
Sam Lantinga <slouken@libsdl.org>
parents: 2237
diff changeset
   345
    /* Disabled until Ryan finishes his VBO/PBO code...
2295
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   346
       CGLEnable(CGLGetCurrentContext(), kCGLCEMPEngine);
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   347
     */
2246
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO
Sam Lantinga <slouken@libsdl.org>
parents: 2237
diff changeset
   348
#endif
75daa0792bd1 Added code to enable multi-threaded OpenGL on Mac OS X, pending Ryan's PBO/VBO
Sam Lantinga <slouken@libsdl.org>
parents: 2237
diff changeset
   349
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   350
    if (flags & SDL_RENDERER_PRESENTVSYNC) {
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   351
        SDL_GL_SetSwapInterval(1);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   352
    } else {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   353
        SDL_GL_SetSwapInterval(0);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   354
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   355
    if (SDL_GL_GetSwapInterval() > 0) {
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   356
        renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   357
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   358
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   359
    if (SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &doublebuffer) == 0) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   360
        if (!doublebuffer) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   361
            renderer->info.flags |= SDL_RENDERER_SINGLEBUFFER;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   362
        }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   363
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   364
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   365
    data->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   366
    renderer->info.max_texture_width = value;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   367
    data->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   368
    renderer->info.max_texture_height = value;
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   369
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   370
    if (SDL_GL_ExtensionSupported("GL_ARB_texture_rectangle")
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   371
        || SDL_GL_ExtensionSupported("GL_EXT_texture_rectangle")) {
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   372
        data->GL_ARB_texture_rectangle_supported = SDL_TRUE;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   373
    }
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   374
    if (SDL_GL_ExtensionSupported("GL_EXT_paletted_texture")) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   375
        data->GL_EXT_paletted_texture_supported = SDL_TRUE;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   376
        data->glColorTableEXT =
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   377
            (PFNGLCOLORTABLEEXTPROC) SDL_GL_GetProcAddress("glColorTableEXT");
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   378
    } else {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   379
        /* Don't advertise support for 8-bit indexed texture format */
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   380
        Uint32 i, j;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   381
        SDL_RendererInfo *info = &renderer->info;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   382
        for (i = 0, j = 0; i < info->num_texture_formats; ++i) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   383
            if (info->texture_formats[i] != SDL_PIXELFORMAT_INDEX8) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   384
                info->texture_formats[j++] = info->texture_formats[i];
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   385
            }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   386
        }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   387
        --info->num_texture_formats;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   388
    }
2845
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   389
    if (SDL_GL_ExtensionSupported("GL_APPLE_ycbcr_422")) {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   390
        data->GL_APPLE_ycbcr_422_supported = SDL_TRUE;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   391
    }
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   392
    if (SDL_GL_ExtensionSupported("GL_MESA_ycbcr_texture")) {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   393
        data->GL_MESA_ycbcr_texture_supported = SDL_TRUE;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   394
    }
2233
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   395
    if (SDL_GL_ExtensionSupported("GL_APPLE_texture_range")) {
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   396
        data->glTextureRangeAPPLE =
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   397
            (void (*)(GLenum, GLsizei, const GLvoid *))
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   398
            SDL_GL_GetProcAddress("glTextureRangeAPPLE");
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   399
    }
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   400
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   401
    /* we might use fragment programs for YUV data, etc. */
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   402
    if (SDL_GL_ExtensionSupported("GL_ARB_fragment_program")) {
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   403
        /* !!! FIXME: this doesn't check for errors. */
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   404
        /* !!! FIXME: this should really reuse the glfuncs.h stuff. */
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   405
        data->glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   406
            SDL_GL_GetProcAddress("glGetProgramivARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   407
        data->glGetProgramStringARB = (PFNGLGETPROGRAMSTRINGARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   408
            SDL_GL_GetProcAddress("glGetProgramStringARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   409
        data->glProgramLocalParameter4fvARB =
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   410
            (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   411
            SDL_GL_GetProcAddress("glProgramLocalParameter4fvARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   412
        data->glDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   413
            SDL_GL_GetProcAddress("glDeleteProgramsARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   414
        data->glGenProgramsARB = (PFNGLGENPROGRAMSARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   415
            SDL_GL_GetProcAddress("glGenProgramsARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   416
        data->glBindProgramARB = (PFNGLBINDPROGRAMARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   417
            SDL_GL_GetProcAddress("glBindProgramARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   418
        data->glProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   419
            SDL_GL_GetProcAddress("glProgramStringARB");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   420
        data->GL_ARB_fragment_program_supported = SDL_TRUE;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   421
    }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   422
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   423
    /* Set up parameters for rendering */
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   424
    data->blendMode = -1;
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   425
    data->scaleMode = -1;
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   426
    data->glDisable(GL_DEPTH_TEST);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   427
    data->glDisable(GL_CULL_FACE);
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   428
    if (data->GL_ARB_texture_rectangle_supported) {
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   429
        data->glEnable(GL_TEXTURE_RECTANGLE_ARB);
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   430
    } else {
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   431
        data->glEnable(GL_TEXTURE_2D);
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   432
    }
2833
c2e182a37f5f Whoops, can't call glOrtho() repeatedly
Sam Lantinga <slouken@libsdl.org>
parents: 2832
diff changeset
   433
    data->updateSize = SDL_TRUE;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   434
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   435
    return renderer;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   436
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   437
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   438
static void
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   439
SetBlendMode(GL_RenderData * data, int blendMode)
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   440
{
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   441
    if (blendMode != data->blendMode) {
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   442
        switch (blendMode) {
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   443
        case SDL_BLENDMODE_NONE:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   444
            data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   445
            data->glDisable(GL_BLEND);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   446
            break;
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   447
        case SDL_BLENDMODE_MASK:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   448
        case SDL_BLENDMODE_BLEND:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   449
            data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   450
            data->glEnable(GL_BLEND);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   451
            data->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   452
            break;
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   453
        case SDL_BLENDMODE_ADD:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   454
            data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   455
            data->glEnable(GL_BLEND);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   456
            data->glBlendFunc(GL_SRC_ALPHA, GL_ONE);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   457
            break;
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   458
        case SDL_BLENDMODE_MOD:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   459
            data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   460
            data->glEnable(GL_BLEND);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   461
            data->glBlendFunc(GL_ZERO, GL_SRC_COLOR);
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   462
            break;
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   463
        }
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   464
        data->blendMode = blendMode;
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   465
    }
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   466
}
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   467
1923
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   468
static int
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   469
GL_ActivateRenderer(SDL_Renderer * renderer)
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   470
{
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   471
    GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   472
    SDL_Window *window = SDL_GetWindowFromID(renderer->window);
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   473
1970
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   474
    if (SDL_GL_MakeCurrent(window->id, data->context) < 0) {
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   475
        return -1;
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   476
    }
2833
c2e182a37f5f Whoops, can't call glOrtho() repeatedly
Sam Lantinga <slouken@libsdl.org>
parents: 2832
diff changeset
   477
    if (data->updateSize) {
2836
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   478
        data->glMatrixMode(GL_PROJECTION);
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   479
        data->glLoadIdentity();
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   480
        data->glMatrixMode(GL_MODELVIEW);
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   481
        data->glLoadIdentity();
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   482
        data->glViewport(0, 0, window->w, window->h);
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   483
        data->glOrtho(0.0, (GLdouble) window->w, (GLdouble) window->h, 0.0,
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   484
                      0.0, 1.0);
2833
c2e182a37f5f Whoops, can't call glOrtho() repeatedly
Sam Lantinga <slouken@libsdl.org>
parents: 2832
diff changeset
   485
        data->updateSize = SDL_FALSE;
c2e182a37f5f Whoops, can't call glOrtho() repeatedly
Sam Lantinga <slouken@libsdl.org>
parents: 2832
diff changeset
   486
    }
1970
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   487
    return 0;
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   488
}
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   489
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   490
static int
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   491
GL_DisplayModeChanged(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
   492
{
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   493
    GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   494
2836
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   495
    /* Rebind the context to the window area and update matrices */
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   496
    data->updateSize = SDL_TRUE;
b128b94ed31e Rebind the context to the window area and update matrices when the window size changes
Sam Lantinga <slouken@libsdl.org>
parents: 2835
diff changeset
   497
    return GL_ActivateRenderer(renderer);
1923
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   498
}
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   499
1922
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   500
static __inline__ int
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   501
power_of_2(int input)
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   502
{
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   503
    int value = 1;
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   504
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   505
    while (value < input) {
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   506
        value <<= 1;
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   507
    }
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   508
    return value;
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   509
}
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   510
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   511
2858
a38fcb093081 A little cleanup for SDL snapshot release
Sam Lantinga <slouken@libsdl.org>
parents: 2848
diff changeset
   512
//#define DEBUG_PROGRAM_COMPILE 1
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   513
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   514
static GLuint
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   515
compile_shader(GL_RenderData * data, GLenum shader_type, const char *_code)
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   516
{
2847
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   517
    const int have_texture_rects = data->GL_ARB_texture_rectangle_supported;
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   518
    const char *replacement = have_texture_rects ? "RECT" : "2D";
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   519
    const size_t replacementlen = strlen(replacement);
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   520
    const char *token = "%TEXTURETARGET%";
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   521
    const size_t tokenlen = strlen(token);
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   522
    char *code = NULL;
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   523
    char *ptr = NULL;
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   524
    GLuint program = 0;
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   525
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   526
    /*
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   527
     * The TEX instruction needs a different target depending on what we use.
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   528
     *  To handle this, we use "%TEXTURETARGET%" and replace the string before
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   529
     *  compiling the shader.
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   530
     */
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   531
    code = SDL_strdup(_code);
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   532
    if (code == NULL)
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   533
        return 0;
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   534
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   535
    for (ptr = SDL_strstr(code, token); ptr; ptr = SDL_strstr(ptr + 1, token)) {
2847
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   536
        memcpy(ptr, replacement, replacementlen);
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   537
        memmove(ptr + replacementlen, ptr + tokenlen,
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   538
                strlen(ptr + tokenlen) + 1);
2847
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   539
    }
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   540
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   541
#if DEBUG_PROGRAM_COMPILE
2847
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   542
    printf("compiling shader:\n%s\n\n", code);
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   543
#endif
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   544
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   545
    data->glGetError();         /* flush any existing error state. */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   546
    data->glGenProgramsARB(1, &program);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   547
    data->glBindProgramARB(shader_type, program);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   548
    data->glProgramStringARB(shader_type, GL_PROGRAM_FORMAT_ASCII_ARB,
2847
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   549
                             SDL_strlen(code), code);
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   550
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   551
    SDL_free(code);
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   552
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   553
    if (data->glGetError() == GL_INVALID_OPERATION) {
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   554
#if DEBUG_PROGRAM_COMPILE
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   555
        GLint pos = 0;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   556
        const GLubyte *errstr;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   557
        data->glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &pos);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   558
        errstr = data->glGetString(GL_PROGRAM_ERROR_STRING_ARB);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   559
        printf("program compile error at position %d: %s\n\n",
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   560
               (int) pos, (const char *) errstr);
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   561
#endif
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   562
        data->glBindProgramARB(shader_type, 0);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   563
        data->glDeleteProgramsARB(1, &program);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   564
        return 0;
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   565
    }
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   566
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   567
    return program;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   568
}
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   569
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   570
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   571
/*
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   572
 * Fragment program that renders from UYVY textures.
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   573
 * The UYVY to RGB equasion is:
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   574
 *   R = 1.164(Y-16) + 1.596(Cr-128)
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   575
 *   G = 1.164(Y-16) - 0.813(Cr-128) - 0.391(Cb-128)
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   576
 *   B = 1.164(Y-16) + 2.018(Cb-128)
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   577
 * Byte layout is Cb, Y1, Cr, Y2, stored in the R, G, B, A channels.
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   578
 * 4 bytes == 2 pixels: Y1/Cb/Cr, Y2/Cb/Cr
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   579
 *
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   580
 * !!! FIXME: this ignores blendmodes, etc.
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   581
 * !!! FIXME: this could be more efficient...use a dot product for green, etc.
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   582
 */
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   583
static const char *fragment_program_UYVY_source_code = "!!ARBfp1.0\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   584
    /* outputs... */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   585
    "OUTPUT outcolor = result.color;\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   586
    /* scratch registers... */
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   587
    "TEMP uyvy;\n" "TEMP luminance;\n" "TEMP work;\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   588
    /* Halve the coordinates to grab the correct 32 bits for the fragment. */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   589
    "MUL work, fragment.texcoord, { 0.5, 1.0, 1.0, 1.0 };\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   590
    /* Sample the YUV texture. Cb, Y1, Cr, Y2, are stored in x, y, z, w. */
2847
7d020441fa81 Don't hardcode RECT for fragment program texture targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 2846
diff changeset
   591
    "TEX uyvy, work, texture[0], %TEXTURETARGET%;\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   592
    /* Do subtractions (128/255, 16/255, 128/255, 16/255) */
2846
3d7833d5a4be Slight optimization of the shader, no need to scale into 0..255
Sam Lantinga <slouken@libsdl.org>
parents: 2845
diff changeset
   593
    "SUB uyvy, uyvy, { 0.501960784313726, 0.06274509803922, 0.501960784313726, 0.06274509803922 };\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   594
    /* Choose the luminance component by texcoord. */
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   595
    /* !!! FIXME: laziness wins out for now... just average Y1 and Y2. */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   596
    "ADD luminance, uyvy.yyyy, uyvy.wwww;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   597
    "MUL luminance, luminance, { 0.5, 0.5, 0.5, 0.5 };\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   598
    /* Multiply luminance by its magic value. */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   599
    "MUL luminance, luminance, { 1.164, 1.164, 1.164, 1.164 };\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   600
    /* uyvy.xyzw becomes Cr/Cr/Cb/Cb, with multiplications. */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   601
    "MUL uyvy, uyvy.zzxx, { 1.596, -0.813, 2.018, -0.391 };\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   602
    /* Add luminance to Cr and Cb, store to RGB channels. */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   603
    "ADD work.rgb, luminance, uyvy;\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   604
    /* Do final addition for Green channel.  (!!! FIXME: this should be a DPH?) */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   605
    "ADD work.g, work.g, uyvy.w;\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   606
    /* Make sure alpha channel is fully opaque.  (!!! FIXME: blend modes!) */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   607
    "MOV work.a, { 1.0 };\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   608
    /* Store out the final fragment color... */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   609
    "MOV outcolor, work;\n"
2848
8a3aa505ecba Comment cleanup.
Ryan C. Gordon <icculus@icculus.org>
parents: 2847
diff changeset
   610
    /* ...and we're done! */
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   611
    "END\n";
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   612
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   613
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   614
static int
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   615
GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   616
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   617
    GL_RenderData *renderdata = (GL_RenderData *) renderer->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   618
    SDL_Window *window = SDL_GetWindowFromID(renderer->window);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   619
    GL_TextureData *data;
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   620
    GLint internalFormat;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   621
    GLenum format, type;
1922
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   622
    int texture_w, texture_h;
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   623
    GLuint shader = 0;
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   624
    GLenum result;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   625
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   626
    switch (texture->format) {
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   627
    case SDL_PIXELFORMAT_INDEX1LSB:
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   628
    case SDL_PIXELFORMAT_INDEX1MSB:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   629
        internalFormat = GL_RGB;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   630
        format = GL_COLOR_INDEX;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   631
        type = GL_BITMAP;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   632
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   633
    case SDL_PIXELFORMAT_INDEX8:
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   634
        if (!renderdata->GL_EXT_paletted_texture_supported) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   635
            SDL_SetError("Unsupported texture format");
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   636
            return -1;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   637
        }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   638
        internalFormat = GL_COLOR_INDEX8_EXT;
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   639
        format = GL_COLOR_INDEX;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   640
        type = GL_UNSIGNED_BYTE;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   641
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   642
    case SDL_PIXELFORMAT_RGB332:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   643
        internalFormat = GL_R3_G3_B2;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   644
        format = GL_RGB;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   645
        type = GL_UNSIGNED_BYTE_3_3_2;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   646
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   647
    case SDL_PIXELFORMAT_RGB444:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   648
        internalFormat = GL_RGB4;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   649
        format = GL_RGB;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   650
        type = GL_UNSIGNED_SHORT_4_4_4_4;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   651
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   652
    case SDL_PIXELFORMAT_RGB555:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   653
        internalFormat = GL_RGB5;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   654
        format = GL_RGB;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   655
        type = GL_UNSIGNED_SHORT_5_5_5_1;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   656
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   657
    case SDL_PIXELFORMAT_ARGB4444:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   658
        internalFormat = GL_RGBA4;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   659
        format = GL_BGRA;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   660
        type = GL_UNSIGNED_SHORT_4_4_4_4_REV;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   661
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   662
    case SDL_PIXELFORMAT_ARGB1555:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   663
        internalFormat = GL_RGB5_A1;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   664
        format = GL_BGRA;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   665
        type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   666
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   667
    case SDL_PIXELFORMAT_RGB565:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   668
        internalFormat = GL_RGB8;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   669
        format = GL_RGB;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   670
        type = GL_UNSIGNED_SHORT_5_6_5;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   671
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   672
    case SDL_PIXELFORMAT_RGB24:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   673
        internalFormat = GL_RGB8;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   674
        format = GL_RGB;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   675
        type = GL_UNSIGNED_BYTE;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   676
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   677
    case SDL_PIXELFORMAT_RGB888:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   678
        internalFormat = GL_RGB8;
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   679
        format = GL_BGRA;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   680
        type = GL_UNSIGNED_BYTE;
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   681
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   682
    case SDL_PIXELFORMAT_BGR24:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   683
        internalFormat = GL_RGB8;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   684
        format = GL_BGR;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   685
        type = GL_UNSIGNED_BYTE;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   686
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   687
    case SDL_PIXELFORMAT_BGR888:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   688
        internalFormat = GL_RGB8;
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   689
        format = GL_RGBA;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   690
        type = GL_UNSIGNED_BYTE;
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   691
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   692
    case SDL_PIXELFORMAT_ARGB8888:
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   693
#ifdef __MACOSX__
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   694
        internalFormat = GL_RGBA;
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   695
        format = GL_BGRA;
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   696
        type = GL_UNSIGNED_INT_8_8_8_8_REV;
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   697
#else
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   698
        internalFormat = GL_RGBA8;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   699
        format = GL_BGRA;
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   700
        type = GL_UNSIGNED_BYTE;
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   701
#endif
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   702
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   703
    case SDL_PIXELFORMAT_ABGR8888:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   704
        internalFormat = GL_RGBA8;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   705
        format = GL_RGBA;
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   706
        type = GL_UNSIGNED_BYTE;
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   707
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   708
    case SDL_PIXELFORMAT_ARGB2101010:
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   709
        internalFormat = GL_RGB10_A2;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   710
        format = GL_BGRA;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   711
        type = GL_UNSIGNED_INT_2_10_10_10_REV;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   712
        break;
2845
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   713
    case SDL_PIXELFORMAT_UYVY:
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   714
        if (renderdata->GL_APPLE_ycbcr_422_supported) {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   715
            internalFormat = GL_RGB;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   716
            format = GL_YCBCR_422_APPLE;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   717
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   718
            type = GL_UNSIGNED_SHORT_8_8_APPLE;
2844
70b63882d2ef The YCbCr texture extension works now that bytes_per_pixel() returns the
Sam Lantinga <slouken@libsdl.org>
parents: 2843
diff changeset
   719
#else
2845
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   720
            type = GL_UNSIGNED_SHORT_8_8_REV_APPLE;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   721
#endif
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   722
        } else if (renderdata->GL_MESA_ycbcr_texture_supported) {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   723
            internalFormat = GL_RGB;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   724
            format = GL_YCBCR_MESA;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   725
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   726
            type = GL_UNSIGNED_SHORT_8_8_MESA;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   727
#else
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   728
            type = GL_UNSIGNED_SHORT_8_8_REV_MESA;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   729
#endif
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   730
        } else if (renderdata->GL_ARB_fragment_program_supported) {
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   731
            if (renderdata->fragment_program_UYVY == 0) {
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   732
                renderdata->fragment_program_UYVY =
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   733
                    compile_shader(renderdata, GL_FRAGMENT_PROGRAM_ARB,
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   734
                                   fragment_program_UYVY_source_code);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   735
                if (renderdata->fragment_program_UYVY == 0) {
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   736
                    SDL_SetError("Fragment program compile error");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   737
                    return -1;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   738
                }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   739
            }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   740
            shader = renderdata->fragment_program_UYVY;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   741
            internalFormat = GL_RGBA;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   742
            format = GL_RGBA;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   743
            type = GL_UNSIGNED_BYTE;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   744
        } else {
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   745
            SDL_SetError("Unsupported texture format");
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   746
            return -1;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   747
        }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   748
        break;
2845
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   749
    case SDL_PIXELFORMAT_YUY2:
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   750
        if (renderdata->GL_APPLE_ycbcr_422_supported) {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   751
            internalFormat = GL_RGB;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   752
            format = GL_YCBCR_422_APPLE;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   753
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   754
            type = GL_UNSIGNED_SHORT_8_8_REV_APPLE;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   755
#else
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   756
            type = GL_UNSIGNED_SHORT_8_8_APPLE;
2844
70b63882d2ef The YCbCr texture extension works now that bytes_per_pixel() returns the
Sam Lantinga <slouken@libsdl.org>
parents: 2843
diff changeset
   757
#endif
2845
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   758
        } else if (renderdata->GL_MESA_ycbcr_texture_supported) {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   759
            internalFormat = GL_RGB;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   760
            format = GL_YCBCR_MESA;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   761
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   762
            type = GL_UNSIGNED_SHORT_8_8_REV_MESA;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   763
#else
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   764
            type = GL_UNSIGNED_SHORT_8_8_MESA;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   765
#endif
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   766
        } else {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   767
            SDL_SetError("Unsupported texture format");
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   768
            return -1;
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   769
        }
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   770
        break;
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   771
    default:
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   772
        SDL_SetError("Unsupported texture format");
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   773
        return -1;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   774
    }
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   775
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   776
    data = (GL_TextureData *) SDL_calloc(1, sizeof(*data));
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   777
    if (!data) {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   778
        SDL_OutOfMemory();
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   779
        return -1;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   780
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   781
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   782
    data->shader = shader;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   783
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   784
    if (texture->format == SDL_PIXELFORMAT_INDEX8) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   785
        data->palette = (Uint8 *) SDL_malloc(3 * 256 * sizeof(Uint8));
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   786
        if (!data->palette) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   787
            SDL_OutOfMemory();
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   788
            SDL_free(data);
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   789
            return -1;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   790
        }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   791
        SDL_memset(data->palette, 0xFF, 3 * 256 * sizeof(Uint8));
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   792
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   793
2222
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   794
    if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   795
        data->pitch = texture->w * bytes_per_pixel(texture->format);
2222
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   796
        data->pixels = SDL_malloc(texture->h * data->pitch);
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   797
        if (!data->pixels) {
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   798
            SDL_OutOfMemory();
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   799
            SDL_free(data);
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   800
            return -1;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   801
        }
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   802
    }
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   803
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   804
    texture->driverdata = data;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   805
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   806
    renderdata->glGetError();
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   807
    renderdata->glGenTextures(1, &data->texture);
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   808
    if (renderdata->GL_ARB_texture_rectangle_supported) {
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   809
        data->type = GL_TEXTURE_RECTANGLE_ARB;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   810
        texture_w = texture->w;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   811
        texture_h = texture->h;
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   812
        data->texw = (GLfloat) texture_w;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   813
        data->texh = (GLfloat) texture_h;
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   814
    } else {
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   815
        data->type = GL_TEXTURE_2D;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   816
        texture_w = power_of_2(texture->w);
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   817
        texture_h = power_of_2(texture->h);
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   818
        data->texw = (GLfloat) (texture->w) / texture_w;
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   819
        data->texh = (GLfloat) texture->h / texture_h;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   820
    }
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   821
2839
f89700cc9272 Progress, maybe. :)
Sam Lantinga <slouken@libsdl.org>
parents: 2836
diff changeset
   822
    /* YUV formats use RGBA but are really two bytes per pixel */
f89700cc9272 Progress, maybe. :)
Sam Lantinga <slouken@libsdl.org>
parents: 2836
diff changeset
   823
    if (internalFormat == GL_RGBA && bytes_per_pixel(texture->format) < 4) {
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   824
        data->HACK_RYAN_FIXME = 2;
2843
e919f2e3700d Fixed the shader fragment problems using 2 byte YUV data in a 4 byte RGB
Sam Lantinga <slouken@libsdl.org>
parents: 2840
diff changeset
   825
    } else {
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   826
        data->HACK_RYAN_FIXME = 1;
2839
f89700cc9272 Progress, maybe. :)
Sam Lantinga <slouken@libsdl.org>
parents: 2836
diff changeset
   827
    }
2843
e919f2e3700d Fixed the shader fragment problems using 2 byte YUV data in a 4 byte RGB
Sam Lantinga <slouken@libsdl.org>
parents: 2840
diff changeset
   828
    texture_w /= data->HACK_RYAN_FIXME;
2839
f89700cc9272 Progress, maybe. :)
Sam Lantinga <slouken@libsdl.org>
parents: 2836
diff changeset
   829
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   830
    data->format = format;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   831
    data->formattype = type;
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   832
    renderdata->glEnable(data->type);
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   833
    renderdata->glBindTexture(data->type, data->texture);
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   834
    renderdata->glTexParameteri(data->type, GL_TEXTURE_MIN_FILTER,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   835
                                GL_NEAREST);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   836
    renderdata->glTexParameteri(data->type, GL_TEXTURE_MAG_FILTER,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   837
                                GL_NEAREST);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   838
    renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_S,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   839
                                GL_CLAMP_TO_EDGE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   840
    renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_T,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   841
                                GL_CLAMP_TO_EDGE);
2840
53ca0d758b0a The previous checkin fixes the crash, so at least we're not overrunning
Sam Lantinga <slouken@libsdl.org>
parents: 2839
diff changeset
   842
#ifdef __MACOSX__
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   843
#ifndef GL_TEXTURE_STORAGE_HINT_APPLE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   844
#define GL_TEXTURE_STORAGE_HINT_APPLE       0x85BC
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   845
#endif
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   846
#ifndef STORAGE_CACHED_APPLE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   847
#define STORAGE_CACHED_APPLE                0x85BE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   848
#endif
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   849
#ifndef STORAGE_SHARED_APPLE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   850
#define STORAGE_SHARED_APPLE                0x85BF
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   851
#endif
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   852
    if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   853
        renderdata->glTexParameteri(data->type, GL_TEXTURE_STORAGE_HINT_APPLE,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   854
                                    GL_STORAGE_SHARED_APPLE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   855
    } else {
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   856
        renderdata->glTexParameteri(data->type, GL_TEXTURE_STORAGE_HINT_APPLE,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   857
                                    GL_STORAGE_CACHED_APPLE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   858
    }
2809
7e257c3a3bf0 Temporary fix for Mac OS X crash in textoverlay
Sam Lantinga <slouken@libsdl.org>
parents: 2808
diff changeset
   859
/* This causes a crash in testoverlay for some reason.  Apple bug? */
7e257c3a3bf0 Temporary fix for Mac OS X crash in textoverlay
Sam Lantinga <slouken@libsdl.org>
parents: 2808
diff changeset
   860
#if 0
2295
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   861
    if (texture->access == SDL_TEXTUREACCESS_STREAMING
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   862
        && texture->format == SDL_PIXELFORMAT_ARGB8888) {
2237
e57a883ffa86 Advertise the most efficient format for the screen. Of course SDL code needs
Sam Lantinga <slouken@libsdl.org>
parents: 2236
diff changeset
   863
        /*
2295
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   864
           if (renderdata->glTextureRangeAPPLE) {
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   865
           renderdata->glTextureRangeAPPLE(data->type,
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   866
           texture->h * data->pitch,
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   867
           data->pixels);
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   868
           }
dbc6d1893869 Checking in Christian Walther's patch for x11 keyboard input. Minor code tweaks by Bob.
Bob Pendleton <bob@pendleton.com>
parents: 2275
diff changeset
   869
         */
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   870
        renderdata->glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   871
        renderdata->glTexImage2D(data->type, 0, internalFormat, texture_w,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   872
                                 texture_h, 0, format, type, data->pixels);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   873
    } else
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   874
#endif
2809
7e257c3a3bf0 Temporary fix for Mac OS X crash in textoverlay
Sam Lantinga <slouken@libsdl.org>
parents: 2808
diff changeset
   875
#endif
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   876
    {
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   877
        renderdata->glTexImage2D(data->type, 0, internalFormat, texture_w,
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   878
                                 texture_h, 0, format, type, NULL);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   879
    }
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   880
    result = renderdata->glGetError();
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   881
    if (result != GL_NO_ERROR) {
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   882
        GL_SetError("glTexImage2D()", result);
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   883
        return -1;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   884
    }
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   885
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   886
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   887
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   888
static int
2222
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   889
GL_QueryTexturePixels(SDL_Renderer * renderer, SDL_Texture * texture,
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   890
                      void **pixels, int *pitch)
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   891
{
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   892
    GL_TextureData *data = (GL_TextureData *) texture->driverdata;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   893
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   894
    *pixels = data->pixels;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   895
    *pitch = data->pitch;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   896
    return 0;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   897
}
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   898
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   899
static int
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   900
GL_SetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   901
                     const SDL_Color * colors, int firstcolor, int ncolors)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   902
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   903
    GL_RenderData *renderdata = (GL_RenderData *) renderer->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   904
    GL_TextureData *data = (GL_TextureData *) texture->driverdata;
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   905
    Uint8 *palette;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   906
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   907
    if (!data->palette) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   908
        SDL_SetError("Texture doesn't have a palette");
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   909
        return -1;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   910
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   911
    palette = data->palette + firstcolor * 3;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   912
    while (ncolors--) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   913
        *palette++ = colors->r;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   914
        *palette++ = colors->g;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   915
        *palette++ = colors->b;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   916
        ++colors;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   917
    }
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   918
    renderdata->glEnable(data->type);
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   919
    renderdata->glBindTexture(data->type, data->texture);
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   920
    renderdata->glColorTableEXT(data->type, GL_RGB8, 256, GL_RGB,
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   921
                                GL_UNSIGNED_BYTE, data->palette);
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   922
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   923
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   924
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   925
static int
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   926
GL_GetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   927
                     SDL_Color * colors, int firstcolor, int ncolors)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   928
{
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   929
    GL_RenderData *renderdata = (GL_RenderData *) renderer->driverdata;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   930
    GL_TextureData *data = (GL_TextureData *) texture->driverdata;
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   931
    Uint8 *palette;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   932
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   933
    if (!data->palette) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   934
        SDL_SetError("Texture doesn't have a palette");
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   935
        return -1;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   936
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   937
    palette = data->palette + firstcolor * 3;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   938
    while (ncolors--) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   939
        colors->r = *palette++;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   940
        colors->g = *palette++;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   941
        colors->b = *palette++;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   942
        colors->unused = SDL_ALPHA_OPAQUE;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   943
        ++colors;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   944
    }
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   945
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   946
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   947
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   948
static void
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   949
SetupTextureUpdate(GL_RenderData * renderdata, SDL_Texture * texture,
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   950
                   int pitch)
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   951
{
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   952
    if (texture->format == SDL_PIXELFORMAT_INDEX1LSB) {
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   953
        renderdata->glPixelStorei(GL_UNPACK_LSB_FIRST, 1);
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   954
    } else if (texture->format == SDL_PIXELFORMAT_INDEX1MSB) {
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   955
        renderdata->glPixelStorei(GL_UNPACK_LSB_FIRST, 0);
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   956
    }
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   957
    renderdata->glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
2808
368410632f2d Whoops, we need this for subrect updates (testsprite)
Sam Lantinga <slouken@libsdl.org>
parents: 2804
diff changeset
   958
    renderdata->glPixelStorei(GL_UNPACK_ROW_LENGTH,
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   959
                              (pitch / bytes_per_pixel(texture->format)) /
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   960
                              ((GL_TextureData *) texture->driverdata)->
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   961
                              HACK_RYAN_FIXME);
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   962
}
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
   963
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   964
static int
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   965
GL_SetTextureColorMod(SDL_Renderer * renderer, SDL_Texture * texture)
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   966
{
1986
f4c65e3bfaed Cleanup for the last checkin
Sam Lantinga <slouken@libsdl.org>
parents: 1985
diff changeset
   967
    return 0;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   968
}
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   969
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   970
static int
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   971
GL_SetTextureAlphaMod(SDL_Renderer * renderer, SDL_Texture * texture)
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   972
{
1986
f4c65e3bfaed Cleanup for the last checkin
Sam Lantinga <slouken@libsdl.org>
parents: 1985
diff changeset
   973
    return 0;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   974
}
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   975
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   976
static int
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   977
GL_SetTextureBlendMode(SDL_Renderer * renderer, SDL_Texture * texture)
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   978
{
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   979
    switch (texture->blendMode) {
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   980
    case SDL_BLENDMODE_NONE:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   981
    case SDL_BLENDMODE_MASK:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   982
    case SDL_BLENDMODE_BLEND:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   983
    case SDL_BLENDMODE_ADD:
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   984
    case SDL_BLENDMODE_MOD:
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   985
        return 0;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   986
    default:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   987
        SDL_Unsupported();
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
   988
        texture->blendMode = SDL_BLENDMODE_NONE;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   989
        return -1;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   990
    }
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   991
}
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   992
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   993
static int
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   994
GL_SetTextureScaleMode(SDL_Renderer * renderer, SDL_Texture * texture)
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   995
{
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   996
    switch (texture->scaleMode) {
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   997
    case SDL_TEXTURESCALEMODE_NONE:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   998
    case SDL_TEXTURESCALEMODE_FAST:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   999
    case SDL_TEXTURESCALEMODE_SLOW:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1000
        return 0;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1001
    case SDL_TEXTURESCALEMODE_BEST:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1002
        SDL_Unsupported();
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1003
        texture->scaleMode = SDL_TEXTURESCALEMODE_SLOW;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1004
        return -1;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1005
    default:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1006
        SDL_Unsupported();
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1007
        texture->scaleMode = SDL_TEXTURESCALEMODE_NONE;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1008
        return -1;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1009
    }
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1010
}
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1011
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1012
static int
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1013
GL_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1014
                 const SDL_Rect * rect, const void *pixels, int pitch)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1015
{
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1016
    GL_RenderData *renderdata = (GL_RenderData *) renderer->driverdata;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1017
    GL_TextureData *data = (GL_TextureData *) texture->driverdata;
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
  1018
    GLenum result;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1019
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1020
    renderdata->glGetError();
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1021
    SetupTextureUpdate(renderdata, texture, pitch);
2884
9dde605c7540 Date: Fri, 19 Dec 2008 20:17:35 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 2858
diff changeset
  1022
    renderdata->glEnable(data->type);
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1023
    renderdata->glBindTexture(data->type, data->texture);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1024
    renderdata->glTexSubImage2D(data->type, 0, rect->x, rect->y, rect->w,
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1025
                                rect->h, data->format, data->formattype,
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1026
                                pixels);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1027
    result = renderdata->glGetError();
1924
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
  1028
    if (result != GL_NO_ERROR) {
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
  1029
        GL_SetError("glTexSubImage2D()", result);
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
  1030
        return -1;
69217fdd2c0a If the OpenGL renderer is selected for a non-OpenGL window, recreate the window with OpenGL enabled.
Sam Lantinga <slouken@libsdl.org>
parents: 1923
diff changeset
  1031
    }
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1032
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1033
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1034
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1035
static int
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1036
GL_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1037
               const SDL_Rect * rect, int markDirty, void **pixels,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1038
               int *pitch)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1039
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1040
    GL_TextureData *data = (GL_TextureData *) texture->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1041
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
  1042
    if (markDirty) {