src/video/SDL_renderer_gl.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 07 Dec 2008 04:38:32 +0000
changeset 2846 3d7833d5a4be
parent 2845 1cc5d5b164e2
child 2847 7d020441fa81
permissions -rw-r--r--
Slight optimization of the shader, no need to scale into 0..255
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2006 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_RenderFill(SDL_Renderer * renderer, Uint8 r, Uint8 g, Uint8 b,
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                         Uint8 a, 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_TEXTUREBLENDMODE_NONE | SDL_TEXTUREBLENDMODE_MASK |
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      SDL_TEXTUREBLENDMODE_BLEND | SDL_TEXTUREBLENDMODE_ADD |
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      SDL_TEXTUREBLENDMODE_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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   154
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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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    case GL_INVALID_VALUE:
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        error = "GL_INVALID_VALUE";
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        break;
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   208
    case GL_INVALID_OPERATION:
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        error = "GL_INVALID_OPERATION";
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        break;
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   211
    case GL_STACK_OVERFLOW:
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        error = "GL_STACK_OVERFLOW";
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        break;
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   214
    case GL_STACK_UNDERFLOW:
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   215
        error = "GL_STACK_UNDERFLOW";
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   216
        break;
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   217
    case GL_OUT_OF_MEMORY:
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        error = "GL_OUT_OF_MEMORY";
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   219
        break;
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   220
    case GL_TABLE_TOO_LARGE:
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   221
        error = "GL_TABLE_TOO_LARGE";
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   222
        break;
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   223
    default:
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   224
        error = "UNKNOWN";
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   225
        break;
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   226
    }
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   227
    SDL_SetError("%s: %s", prefix, error);
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   228
}
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   229
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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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#elif defined(__MINT__)
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#define __SDL_NOGETPROCADDR__
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#endif
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   238
#ifdef __SDL_NOGETPROCADDR__
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#define SDL_PROC(ret,func,params) data->func=func;
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   240
#else
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#define SDL_PROC(ret,func,params) \
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    do { \
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        data->func = SDL_GL_GetProcAddress(#func); \
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        if ( ! data->func ) { \
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            SDL_SetError("Couldn't load GL function %s: %s\n", #func, SDL_GetError()); \
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            return -1; \
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   247
        } \
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   248
    } while ( 0 );
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#endif /* __SDL_NOGETPROCADDR__ */
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#include "SDL_glfuncs.h"
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#undef SDL_PROC
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   253
    return 0;
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   254
}
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void
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parents:
diff changeset
   257
GL_AddRenderDriver(_THIS)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   258
{
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
   259
    if (_this->GL_CreateContext) {
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   260
        SDL_AddRenderDriver(0, &GL_RenderDriver);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   261
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   262
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   263
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   264
SDL_Renderer *
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   265
GL_CreateRenderer(SDL_Window * window, Uint32 flags)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   266
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   267
    SDL_Renderer *renderer;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   268
    GL_RenderData *data;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   269
    GLint value;
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   270
    int doublebuffer;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   271
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   272
    /* Render directly to the window, unless we're compositing */
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   273
#ifndef __MACOSX__
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   274
    if (flags & SDL_RENDERER_SINGLEBUFFER) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   275
        SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 0);
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   276
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   277
#endif
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   278
    if (!(window->flags & SDL_WINDOW_OPENGL)) {
1928
861bc36f0ab3 Fixed crash with multiple windows
Sam Lantinga <slouken@libsdl.org>
parents: 1927
diff changeset
   279
        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
   280
            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
   281
        }
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   282
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   283
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
   284
    renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   285
    if (!renderer) {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   286
        SDL_OutOfMemory();
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   287
        return NULL;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   288
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   289
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
   290
    data = (GL_RenderData *) SDL_calloc(1, sizeof(*data));
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   291
    if (!data) {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   292
        GL_DestroyRenderer(renderer);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   293
        SDL_OutOfMemory();
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   294
        return NULL;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   295
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   296
1923
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   297
    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
   298
    renderer->DisplayModeChanged = GL_DisplayModeChanged;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   299
    renderer->CreateTexture = GL_CreateTexture;
2222
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   300
    renderer->QueryTexturePixels = GL_QueryTexturePixels;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   301
    renderer->SetTexturePalette = GL_SetTexturePalette;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   302
    renderer->GetTexturePalette = GL_GetTexturePalette;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   303
    renderer->SetTextureColorMod = GL_SetTextureColorMod;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   304
    renderer->SetTextureAlphaMod = GL_SetTextureAlphaMod;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   305
    renderer->SetTextureBlendMode = GL_SetTextureBlendMode;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   306
    renderer->SetTextureScaleMode = GL_SetTextureScaleMode;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   307
    renderer->UpdateTexture = GL_UpdateTexture;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   308
    renderer->LockTexture = GL_LockTexture;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   309
    renderer->UnlockTexture = GL_UnlockTexture;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   310
    renderer->DirtyTexture = GL_DirtyTexture;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   311
    renderer->RenderFill = GL_RenderFill;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   312
    renderer->RenderCopy = GL_RenderCopy;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   313
    renderer->RenderPresent = GL_RenderPresent;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   314
    renderer->DestroyTexture = GL_DestroyTexture;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   315
    renderer->DestroyRenderer = GL_DestroyRenderer;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   316
    renderer->info = GL_RenderDriver.info;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   317
    renderer->window = window->id;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   318
    renderer->driverdata = data;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   319
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   320
    renderer->info.flags =
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   321
        (SDL_RENDERER_PRESENTDISCARD | SDL_RENDERER_ACCELERATED);
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   322
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   323
    if (GL_LoadFunctions(data) < 0) {
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   324
        GL_DestroyRenderer(renderer);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   325
        return NULL;
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   326
    }
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   327
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   328
    data->context = SDL_GL_CreateContext(window->id);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   329
    if (!data->context) {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   330
        GL_DestroyRenderer(renderer);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   331
        return NULL;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   332
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   333
    if (SDL_GL_MakeCurrent(window->id, data->context) < 0) {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   334
        GL_DestroyRenderer(renderer);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   335
        return NULL;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   336
    }
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
   337
#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
   338
    /* 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
   339
    /* 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
   340
       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
   341
     */
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
   342
#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
   343
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   344
    if (flags & SDL_RENDERER_PRESENTVSYNC) {
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   345
        SDL_GL_SetSwapInterval(1);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   346
    } else {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   347
        SDL_GL_SetSwapInterval(0);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   348
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   349
    if (SDL_GL_GetSwapInterval() > 0) {
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   350
        renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   351
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   352
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   353
    if (SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &doublebuffer) == 0) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   354
        if (!doublebuffer) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   355
            renderer->info.flags |= SDL_RENDERER_SINGLEBUFFER;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   356
        }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   357
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   358
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   359
    data->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   360
    renderer->info.max_texture_width = value;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   361
    data->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &value);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents: 1928
diff changeset
   362
    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
   363
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   364
    if (SDL_GL_ExtensionSupported("GL_ARB_texture_rectangle")
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   365
        || SDL_GL_ExtensionSupported("GL_EXT_texture_rectangle")) {
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   366
        data->GL_ARB_texture_rectangle_supported = SDL_TRUE;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   367
    }
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   368
    if (SDL_GL_ExtensionSupported("GL_EXT_paletted_texture")) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   369
        data->GL_EXT_paletted_texture_supported = SDL_TRUE;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   370
        data->glColorTableEXT =
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   371
            (PFNGLCOLORTABLEEXTPROC) SDL_GL_GetProcAddress("glColorTableEXT");
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   372
    } else {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   373
        /* 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
   374
        Uint32 i, j;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   375
        SDL_RendererInfo *info = &renderer->info;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   376
        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
   377
            if (info->texture_formats[i] != SDL_PIXELFORMAT_INDEX8) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   378
                info->texture_formats[j++] = info->texture_formats[i];
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   379
            }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   380
        }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   381
        --info->num_texture_formats;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   382
    }
2846
3d7833d5a4be Slight optimization of the shader, no need to scale into 0..255
Sam Lantinga <slouken@libsdl.org>
parents: 2845
diff changeset
   383
/*
2845
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   384
    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
   385
        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
   386
    }
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   387
    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
   388
        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
   389
    }
2846
3d7833d5a4be Slight optimization of the shader, no need to scale into 0..255
Sam Lantinga <slouken@libsdl.org>
parents: 2845
diff changeset
   390
*/
2233
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   391
    if (SDL_GL_ExtensionSupported("GL_APPLE_texture_range")) {
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   392
        data->glTextureRangeAPPLE =
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   393
            (void (*)(GLenum, GLsizei, const GLvoid *))
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   394
            SDL_GL_GetProcAddress("glTextureRangeAPPLE");
fb01ee9716bc Test using glTextureRangeAPPLE
Sam Lantinga <slouken@libsdl.org>
parents: 2230
diff changeset
   395
    }
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
   396
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   397
    /* 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
   398
    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
   399
        /* !!! 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
   400
        /* !!! 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
   401
        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
   402
            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
   403
        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
   404
            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
   405
        data->glProgramLocalParameter4fvARB =
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   406
            (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   407
            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
   408
        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
   409
            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
   410
        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
   411
            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
   412
        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
   413
            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
   414
        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
   415
            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
   416
        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
   417
    }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   418
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   419
    /* Set up parameters for rendering */
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   420
    data->blendMode = -1;
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   421
    data->scaleMode = -1;
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   422
    data->glDisable(GL_DEPTH_TEST);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   423
    data->glDisable(GL_CULL_FACE);
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   424
    if (data->GL_ARB_texture_rectangle_supported) {
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   425
        data->glEnable(GL_TEXTURE_RECTANGLE_ARB);
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   426
    } else {
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   427
        data->glEnable(GL_TEXTURE_2D);
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   428
    }
2833
c2e182a37f5f Whoops, can't call glOrtho() repeatedly
Sam Lantinga <slouken@libsdl.org>
parents: 2832
diff changeset
   429
    data->updateSize = SDL_TRUE;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   430
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   431
    return renderer;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   432
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   433
1923
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   434
static int
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   435
GL_ActivateRenderer(SDL_Renderer * renderer)
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   436
{
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   437
    GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   438
    SDL_Window *window = SDL_GetWindowFromID(renderer->window);
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   439
1970
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   440
    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
   441
        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
   442
    }
2833
c2e182a37f5f Whoops, can't call glOrtho() repeatedly
Sam Lantinga <slouken@libsdl.org>
parents: 2832
diff changeset
   443
    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
   444
        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
   445
        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
   446
        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
   447
        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
   448
        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
   449
        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
   450
                      0.0, 1.0);
2833
c2e182a37f5f Whoops, can't call glOrtho() repeatedly
Sam Lantinga <slouken@libsdl.org>
parents: 2832
diff changeset
   451
        data->updateSize = SDL_FALSE;
c2e182a37f5f Whoops, can't call glOrtho() repeatedly
Sam Lantinga <slouken@libsdl.org>
parents: 2832
diff changeset
   452
    }
1970
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   453
    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
   454
}
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   455
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   456
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
   457
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
   458
{
db3ba6c0d0df Allow the render context to do necessary work when the video mode changes.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
   459
    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
   460
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
   461
    /* 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
   462
    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
   463
    return GL_ActivateRenderer(renderer);
1923
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   464
}
d4572b97b08f Switch OpenGL contexts when switching render contexts.
Sam Lantinga <slouken@libsdl.org>
parents: 1922
diff changeset
   465
1922
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   466
static __inline__ int
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   467
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
   468
{
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   469
    int value = 1;
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   470
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   471
    while (value < input) {
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   472
        value <<= 1;
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   473
    }
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   474
    return value;
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   475
}
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   476
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   477
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   478
#define DEBUG_PROGRAM_COMPILE 1
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   479
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   480
static GLuint
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   481
compile_shader(GL_RenderData *data, GLenum shader_type, const char *source)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   482
{
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   483
#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
   484
    printf("compiling shader:\n%s\n\n", source);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   485
#endif
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   486
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   487
    GLuint program = 0;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   488
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   489
    data->glGetError();  /* flush any existing error state. */
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   490
    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
   491
    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
   492
    data->glProgramStringARB(shader_type, GL_PROGRAM_FORMAT_ASCII_ARB,
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   493
                             SDL_strlen(source), source);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   494
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   495
    if (data->glGetError() == GL_INVALID_OPERATION)
2845
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   496
    {
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   497
#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
   498
        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
   499
        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
   500
        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
   501
        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
   502
        printf("program compile error at position %d: %s\n\n",
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   503
                  (int) pos, (const char *) errstr);
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   504
#endif
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   505
        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
   506
        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
   507
        return 0;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   508
    } // if
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   509
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   510
    return program;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   511
}
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   512
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   513
// UYVY to RGB equasion...
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   514
//  R = 1.164(Y-16) + 1.596(Cr-128)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   515
//  G = 1.164(Y-16) - 0.813(Cr-128) - 0.391(Cb-128)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   516
//  B = 1.164(Y-16) + 2.018(Cb-128)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   517
// Byte layout is Cb, Y1, Cr, Y2.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   518
// 4 bytes == 2 pixels: Y1/Cb/Cr, Y2/Cb/Cr
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   519
// !!! FIXME: this ignores blendmodes, etc.
2846
3d7833d5a4be Slight optimization of the shader, no need to scale into 0..255
Sam Lantinga <slouken@libsdl.org>
parents: 2845
diff changeset
   520
// !!! FIXME: this could be more efficient...use a dot product for green, etc.
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   521
static const char *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
   522
    "!!ARBfp1.0\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   523
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   524
    // outputs...
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   525
    "OUTPUT outcolor = result.color;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   526
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   527
    // scratch registers...
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   528
    "TEMP uyvy;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   529
    "TEMP luminance;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   530
    "TEMP work;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   531
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   532
    // We need 32 bits to store the data, but each pixel is 16 bits in itself.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   533
    //  halve the coordinates to grab the correct 32 bits for the fragment.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   534
    "MUL work, fragment.texcoord, { 0.5, 1.0, 1.0, 1.0 };\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   535
2846
3d7833d5a4be Slight optimization of the shader, no need to scale into 0..255
Sam Lantinga <slouken@libsdl.org>
parents: 2845
diff changeset
   536
    // Sample the YUV texture. Cb, Y1, Cr, Y2, are stored x,y,z,w
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   537
    // !!! FIXME: "RECT" needs to be "2D" if we're not using texture_rectangle extension.  :/
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   538
    "TEX uyvy, work, texture[0], RECT;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   539
2846
3d7833d5a4be Slight optimization of the shader, no need to scale into 0..255
Sam Lantinga <slouken@libsdl.org>
parents: 2845
diff changeset
   540
    // Do subtractions (128/255, 16/255, 128/255, 16/255)
3d7833d5a4be Slight optimization of the shader, no need to scale into 0..255
Sam Lantinga <slouken@libsdl.org>
parents: 2845
diff changeset
   541
    "SUB uyvy, uyvy, { 0.501960784313726, 0.06274509803922, 0.501960784313726, 0.06274509803922 };\n"
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   542
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   543
    // Choose the luminance component by texcoord.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   544
    // !!! FIXME: laziness wins out for now... just average Y1 and Y2.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   545
    "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
   546
    "MUL luminance, luminance, { 0.5, 0.5, 0.5, 0.5 };\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   547
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   548
    // Multiply luminance by its magic value.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   549
    "MUL luminance, luminance, { 1.164, 1.164, 1.164, 1.164 };\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   550
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   551
    // uyvy.xyzw becomes Cr/Cr/Cb/Cb, with multiplications.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   552
    "MUL uyvy, uyvy.zzxx, { 1.596, -0.813, 2.018, -0.391 };\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   553
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   554
    // Add luminance Cr and Cb, store to RGB channels.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   555
    "ADD work.rgb, luminance, uyvy;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   556
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   557
    // Do final addition for Green channel.  (!!! FIXME: this should be a DPH?)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   558
    "ADD work.g, work.g, uyvy.w;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   559
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   560
    // Make sure alpha channel is fully opaque.  (!!! FIXME: blend modes!)
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   561
    "MOV work.a, { 1.0 };\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   562
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   563
    // Store out the final fragment color.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   564
    "MOV outcolor, work;\n"
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   565
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   566
    // ...and we're done.
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   567
    "END\n";
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
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   570
static int
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   571
GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   572
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   573
    GL_RenderData *renderdata = (GL_RenderData *) renderer->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   574
    SDL_Window *window = SDL_GetWindowFromID(renderer->window);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   575
    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
   576
    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
   577
    GLenum format, type;
1922
4905cac7a4bd Fixed OpenGL blend modes, added power of 2 texture code
Sam Lantinga <slouken@libsdl.org>
parents: 1921
diff changeset
   578
    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
   579
    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
   580
    GLenum result;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   581
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
   582
    switch (texture->format) {
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   583
    case SDL_PIXELFORMAT_INDEX1LSB:
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   584
    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
   585
        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
   586
        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
   587
        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
   588
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   589
    case SDL_PIXELFORMAT_INDEX8:
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   590
        if (!renderdata->GL_EXT_paletted_texture_supported) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   591
            SDL_SetError("Unsupported texture format");
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   592
            return -1;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   593
        }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   594
        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
   595
        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
   596
        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
   597
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   598
    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
   599
        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
   600
        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
   601
        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
   602
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   603
    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
   604
        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
   605
        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
   606
        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
   607
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   608
    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
   609
        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
   610
        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
   611
        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
   612
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   613
    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
   614
        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
   615
        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
   616
        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
   617
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   618
    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
   619
        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
   620
        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
   621
        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
   622
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   623
    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
   624
        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
   625
        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
   626
        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
   627
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   628
    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
   629
        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
   630
        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
   631
        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
   632
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   633
    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
   634
        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
   635
        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
   636
        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
   637
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   638
    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
   639
        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
   640
        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
   641
        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
   642
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   643
    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
   644
        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
   645
        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
   646
        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
   647
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   648
    case SDL_PIXELFORMAT_ARGB8888:
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   649
#ifdef __MACOSX__
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   650
        internalFormat = GL_RGBA;
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   651
        format = GL_BGRA;
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   652
        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
   653
#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
   654
        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
   655
        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
   656
        type = GL_UNSIGNED_BYTE;
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   657
#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
   658
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   659
    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
   660
        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
   661
        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
   662
        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
   663
        break;
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   664
    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
   665
        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
   666
        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
   667
        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
   668
        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
   669
    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
   670
        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
   671
            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
   672
            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
   673
#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
   674
            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
   675
#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
   676
            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
   677
#endif
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   678
        } 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
   679
            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
   680
            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
   681
#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
   682
            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
   683
#else
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   684
            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
   685
#endif
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   686
        } 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
   687
            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
   688
                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
   689
                    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
   690
                                   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
   691
                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
   692
                    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
   693
                    return -1;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   694
                }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   695
            }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   696
            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
   697
            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
   698
            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
   699
            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
   700
        } else {
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   701
            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
   702
            return -1;
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   703
        }
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   704
        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
   705
    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
   706
        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
   707
            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
   708
            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
   709
#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
   710
            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
   711
#else
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   712
            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
   713
#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
   714
        } 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
   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_MESA;
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_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
   719
#else
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_MESA;
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 {
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   723
            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
   724
            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
   725
        }
1cc5d5b164e2 Added official support for GL_APPLE_ycbcr_422 and GL_MESA_ycbcr_texture
Sam Lantinga <slouken@libsdl.org>
parents: 2844
diff changeset
   726
        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
   727
    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
   728
        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
   729
        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
   730
    }
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
   731
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
   732
    data = (GL_TextureData *) SDL_calloc(1, sizeof(*data));
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   733
    if (!data) {
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   734
        SDL_OutOfMemory();
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   735
        return -1;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   736
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   737
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   738
    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
   739
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   740
    if (texture->format == SDL_PIXELFORMAT_INDEX8) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   741
        data->palette = (Uint8 *) SDL_malloc(3 * 256 * sizeof(Uint8));
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   742
        if (!data->palette) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   743
            SDL_OutOfMemory();
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   744
            SDL_free(data);
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   745
            return -1;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   746
        }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   747
        SDL_memset(data->palette, 0xFF, 3 * 256 * sizeof(Uint8));
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   748
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   749
2222
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   750
    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
   751
        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
   752
        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
   753
        if (!data->pixels) {
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   754
            SDL_OutOfMemory();
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   755
            SDL_free(data);
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   756
            return -1;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   757
        }
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   758
    }
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   759
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   760
    texture->driverdata = data;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   761
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   762
    renderdata->glGetError();
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   763
    renderdata->glGenTextures(1, &data->texture);
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   764
    if (renderdata->GL_ARB_texture_rectangle_supported) {
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   765
        data->type = GL_TEXTURE_RECTANGLE_ARB;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   766
        texture_w = texture->w;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   767
        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
   768
        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
   769
        data->texh = (GLfloat) texture_h;
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   770
    } else {
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   771
        data->type = GL_TEXTURE_2D;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   772
        texture_w = power_of_2(texture->w);
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   773
        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
   774
        data->texw = (GLfloat) (texture->w) / texture_w;
1926
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   775
        data->texh = (GLfloat) texture->h / texture_h;
307355678142 Added SDL_GL_ExtensionSupported()
Sam Lantinga <slouken@libsdl.org>
parents: 1924
diff changeset
   776
    }
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   777
2839
f89700cc9272 Progress, maybe. :)
Sam Lantinga <slouken@libsdl.org>
parents: 2836
diff changeset
   778
    /* YUV formats use RGBA but are really two bytes per pixel */
f89700cc9272 Progress, maybe. :)
Sam Lantinga <slouken@libsdl.org>
parents: 2836
diff changeset
   779
    if (internalFormat == GL_RGBA && bytes_per_pixel(texture->format) < 4) {
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
   780
data->HACK_RYAN_FIXME = 2;
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
   781
    } else {
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
   782
data->HACK_RYAN_FIXME = 1;
2839
f89700cc9272 Progress, maybe. :)
Sam Lantinga <slouken@libsdl.org>
parents: 2836
diff changeset
   783
    }
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
   784
    texture_w /= data->HACK_RYAN_FIXME;
2839
f89700cc9272 Progress, maybe. :)
Sam Lantinga <slouken@libsdl.org>
parents: 2836
diff changeset
   785
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
   786
    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
   787
    data->formattype = type;
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   788
    renderdata->glBindTexture(data->type, data->texture);
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   789
    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
   790
                                GL_NEAREST);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   791
    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
   792
                                GL_NEAREST);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   793
    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
   794
                                GL_CLAMP_TO_EDGE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   795
    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
   796
                                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
   797
#ifdef __MACOSX__
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   798
#ifndef GL_TEXTURE_STORAGE_HINT_APPLE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   799
#define GL_TEXTURE_STORAGE_HINT_APPLE       0x85BC
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   800
#endif
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   801
#ifndef STORAGE_CACHED_APPLE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   802
#define STORAGE_CACHED_APPLE                0x85BE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   803
#endif
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   804
#ifndef STORAGE_SHARED_APPLE
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   805
#define STORAGE_SHARED_APPLE                0x85BF
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   806
#endif
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   807
    if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   808
        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
   809
                                    GL_STORAGE_SHARED_APPLE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   810
    } else {
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   811
        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
   812
                                    GL_STORAGE_CACHED_APPLE);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   813
    }
2809
7e257c3a3bf0 Temporary fix for Mac OS X crash in textoverlay
Sam Lantinga <slouken@libsdl.org>
parents: 2808
diff changeset
   814
/* 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
   815
#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
   816
    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
   817
        && 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
   818
        /*
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
   819
           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
   820
           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
   821
           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
   822
           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
   823
           }
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
   824
         */
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   825
        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
   826
        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
   827
                                 texture_h, 0, format, type, data->pixels);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   828
    } else
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   829
#endif
2809
7e257c3a3bf0 Temporary fix for Mac OS X crash in textoverlay
Sam Lantinga <slouken@libsdl.org>
parents: 2808
diff changeset
   830
#endif
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   831
    {
2840
53ca0d758b0a The previous checkin fixes the crash, so at least we're not overrunning
Sam Lantinga <slouken@libsdl.org>
parents: 2839
diff changeset
   832
printf("teximage2d(%d,%d)\n", (int) texture_w, (int) texture_h);
2230
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   833
        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
   834
                                 texture_h, 0, format, type, NULL);
9b7d29d2432b Optimized OpenGL renderer for Mac OS X.
Sam Lantinga <slouken@libsdl.org>
parents: 2222
diff changeset
   835
    }
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   836
    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
   837
    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
   838
        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
   839
        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
   840
    }
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   841
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   842
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   843
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   844
static int
2222
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   845
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
   846
                      void **pixels, int *pitch)
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   847
{
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   848
    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
   849
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   850
    *pixels = data->pixels;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   851
    *pitch = data->pitch;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   852
    return 0;
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   853
}
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   854
926294b2bb4e Emphasized the separation between SDL_Surface and SDL_Texture
Sam Lantinga <slouken@libsdl.org>
parents: 1986
diff changeset
   855
static int
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   856
GL_SetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   857
                     const SDL_Color * colors, int firstcolor, int ncolors)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   858
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   859
    GL_RenderData *renderdata = (GL_RenderData *) renderer->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   860
    GL_TextureData *data = (GL_TextureData *) texture->driverdata;
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   861
    Uint8 *palette;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   862
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   863
    if (!data->palette) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   864
        SDL_SetError("Texture doesn't have a palette");
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   865
        return -1;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   866
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   867
    palette = data->palette + firstcolor * 3;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   868
    while (ncolors--) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   869
        *palette++ = colors->r;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   870
        *palette++ = colors->g;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   871
        *palette++ = colors->b;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   872
        ++colors;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   873
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   874
    renderdata->glBindTexture(data->type, data->texture);
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   875
    renderdata->glColorTableEXT(data->type, GL_RGB8, 256, GL_RGB,
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   876
                                GL_UNSIGNED_BYTE, data->palette);
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   877
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   878
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   879
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   880
static int
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   881
GL_GetTexturePalette(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   882
                     SDL_Color * colors, int firstcolor, int ncolors)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   883
{
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   884
    GL_RenderData *renderdata = (GL_RenderData *) renderer->driverdata;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   885
    GL_TextureData *data = (GL_TextureData *) texture->driverdata;
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   886
    Uint8 *palette;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   887
1974
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   888
    if (!data->palette) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   889
        SDL_SetError("Texture doesn't have a palette");
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   890
        return -1;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   891
    }
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   892
    palette = data->palette + firstcolor * 3;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   893
    while (ncolors--) {
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   894
        colors->r = *palette++;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   895
        colors->g = *palette++;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   896
        colors->b = *palette++;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   897
        colors->unused = SDL_ALPHA_OPAQUE;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   898
        ++colors;
70deaf574153 Added paletted OpenGL texture support.
Sam Lantinga <slouken@libsdl.org>
parents: 1970
diff changeset
   899
    }
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   900
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   901
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   902
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
   903
static void
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   904
SetupTextureUpdate(GL_RenderData * renderdata, SDL_Texture * texture,
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   905
                   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
   906
{
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   907
    if (texture->format == SDL_PIXELFORMAT_INDEX1LSB) {
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   908
        renderdata->glPixelStorei(GL_UNPACK_LSB_FIRST, 1);
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1952
diff changeset
   909
    } else if (texture->format == SDL_PIXELFORMAT_INDEX1MSB) {
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   910
        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
   911
    }
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   912
    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
   913
    renderdata->glPixelStorei(GL_UNPACK_ROW_LENGTH,
2844
70b63882d2ef The YCbCr texture extension works now that bytes_per_pixel() returns the
Sam Lantinga <slouken@libsdl.org>
parents: 2843
diff changeset
   914
                              (pitch / bytes_per_pixel(texture->format)) / ((GL_TextureData *)texture->driverdata)->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
   915
}
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
   916
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   917
static int
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   918
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
   919
{
1986
f4c65e3bfaed Cleanup for the last checkin
Sam Lantinga <slouken@libsdl.org>
parents: 1985
diff changeset
   920
    return 0;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   921
}
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   922
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   923
static int
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   924
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
   925
{
1986
f4c65e3bfaed Cleanup for the last checkin
Sam Lantinga <slouken@libsdl.org>
parents: 1985
diff changeset
   926
    return 0;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   927
}
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   928
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   929
static int
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   930
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
   931
{
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   932
    switch (texture->blendMode) {
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   933
    case SDL_TEXTUREBLENDMODE_NONE:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   934
    case SDL_TEXTUREBLENDMODE_MASK:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   935
    case SDL_TEXTUREBLENDMODE_BLEND:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   936
    case SDL_TEXTUREBLENDMODE_ADD:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   937
    case SDL_TEXTUREBLENDMODE_MOD:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   938
        return 0;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   939
    default:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   940
        SDL_Unsupported();
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   941
        texture->blendMode = SDL_TEXTUREBLENDMODE_NONE;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   942
        return -1;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   943
    }
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   944
}
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   945
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   946
static int
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   947
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
   948
{
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   949
    switch (texture->scaleMode) {
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   950
    case SDL_TEXTURESCALEMODE_NONE:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   951
    case SDL_TEXTURESCALEMODE_FAST:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   952
    case SDL_TEXTURESCALEMODE_SLOW:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   953
        return 0;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   954
    case SDL_TEXTURESCALEMODE_BEST:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   955
        SDL_Unsupported();
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   956
        texture->scaleMode = SDL_TEXTURESCALEMODE_SLOW;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   957
        return -1;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   958
    default:
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   959
        SDL_Unsupported();
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   960
        texture->scaleMode = SDL_TEXTURESCALEMODE_NONE;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   961
        return -1;
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   962
    }
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   963
}
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   964
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
   965
static int
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   966
GL_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   967
                 const SDL_Rect * rect, const void *pixels, int pitch)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   968
{
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   969
    GL_RenderData *renderdata = (GL_RenderData *) renderer->driverdata;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   970
    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
   971
    GLenum result;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   972
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   973
    renderdata->glGetError();
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   974
    SetupTextureUpdate(renderdata, texture, pitch);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   975
    renderdata->glBindTexture(data->type, data->texture);
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
   976
printf("texsubimage2d(%d,%d,%d,%d)\n", (int) rect->x, (int) rect->y, (int) rect->w, (int) rect->h);
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   977
    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
   978
                                rect->h, data->format, data->formattype,
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   979
                                pixels);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
   980
    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
   981
    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
   982
        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
   983
        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
   984
    }
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   985
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   986
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   987
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   988
static int
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   989
GL_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   990
               const SDL_Rect * rect, int markDirty, void **pixels,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   991
               int *pitch)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   992
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   993
    GL_TextureData *data = (GL_TextureData *) texture->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   994
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
   995
    if (markDirty) {
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   996
        SDL_AddDirtyRect(&data->dirty, rect);
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
   997
    }
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   998
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
   999
    *pixels =
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
  1000
        (void *) ((Uint8 *) data->pixels + rect->y * data->pitch +
2835
f38257b5d936 Initial pixel shader support for YUV textures in the GL renderer.
Ryan C. Gordon <icculus@icculus.org>
parents: 2833
diff changeset
  1001
                  rect->x * bytes_per_pixel(texture->format));
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
  1002
    *pitch = data->pitch;
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1003
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1004
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1005
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1006
static void
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1007
GL_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1008
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1009
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1010
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1011
static void
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1012
GL_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture, int numrects,
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1013
                const SDL_Rect * rects)
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1014
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1015
    GL_TextureData *data = (GL_TextureData *) texture->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1016
    int i;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1017
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1018
    for (i = 0; i < numrects; ++i) {
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
  1019
        SDL_AddDirtyRect(&data->dirty, &rects[i]);
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1020
    }
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1021
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1022
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1023
static int
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1024
GL_RenderFill(SDL_Renderer * renderer, Uint8 r, Uint8 g, Uint8 b, Uint8 a,
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1025
              const SDL_Rect * rect)
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1026
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1027
    GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1028
    SDL_Window *window = SDL_GetWindowFromID(renderer->window);
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1029
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1030
    data->glClearColor((GLclampf) r * inv255f, (GLclampf) g * inv255f,
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1031
                       (GLclampf) b * inv255f, (GLclampf) a * inv255f);
1927
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1032
    data->glViewport(rect->x, window->h - rect->y, rect->w, rect->h);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1033
    data->glClear(GL_COLOR_BUFFER_BIT);
aeb8263d377a OpenGL renderer is feature complete!
Sam Lantinga <slouken@libsdl.org>
parents: 1926
diff changeset
  1034
    data->glViewport(0, 0, window->w, window->h);
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1035
    return 0;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1036
}
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1037
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1038
static int
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1039
GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1975
diff changeset
  1040
              const SDL_Rect * srcrect, const SDL_Rect * dstrect)
1918
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1041
{
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1042
    GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1043
    GL_TextureData *texturedata = (GL_TextureData *) texture->driverdata;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1044
    int minx, miny, maxx, maxy;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1045
    GLfloat minu, maxu, minv, maxv;
092bd3a019c5 Starting on the OpenGL renderer...
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
  1046
2275
12ea0fdc0df2 Split out the SDL_rect and SDL_surface functions into their own headers.
Sam Lantinga <slouken@libsdl.org>
parents: 2246
diff changeset
  1047
    if (texturedata->dirty.list) {
1920
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
  1048
        SDL_DirtyRect *dirty;
8a162bfdc838 Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations.
Sam Lantinga <slouken@libsdl.org>
parents: 1919
diff changeset
  1049