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Optimized OpenGL renderer for Mac OS X.

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The SDL 1.2 API version of testsprite went from 120 FPS to 320 FPS. :)

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402592
This commit is contained in:
Sam Lantinga 2007-08-12 07:02:28 +00:00
parent 6ca6ba5a6b
commit a2f5eab988
1 changed files with 46 additions and 2 deletions
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48
src/video/SDL_renderer_gl.c
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@ -32,6 +32,10 @@
/* OpenGL renderer implementation */
/* Details on optimizing the texture path on Mac OS X:
http://developer.apple.com/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_texturedata/chapter_10_section_2.html
*/
static const float inv255f = 1.0f / 255.0f;
static SDL_Renderer *GL_CreateRenderer(SDL_Window * window, Uint32 flags);
@ -461,9 +465,15 @@ GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
type = GL_UNSIGNED_BYTE;
break;
case SDL_PIXELFORMAT_ARGB8888:
#ifdef __MACOSX__
internalFormat = GL_RGBA;
format = GL_BGRA;
type = GL_UNSIGNED_INT_8_8_8_8_REV;
#else
internalFormat = GL_RGBA8;
format = GL_BGRA;
type = GL_UNSIGNED_BYTE;
#endif
break;
case SDL_PIXELFORMAT_ABGR8888:
internalFormat = GL_RGBA8;
@ -526,8 +536,42 @@ GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
data->format = format;
data->formattype = type;
renderdata->glBindTexture(data->type, data->texture);
renderdata->glTexImage2D(data->type, 0, internalFormat, texture_w,
texture_h, 0, format, type, NULL);
renderdata->glTexParameteri(data->type, GL_TEXTURE_MIN_FILTER,
GL_NEAREST);
renderdata->glTexParameteri(data->type, GL_TEXTURE_MAG_FILTER,
GL_NEAREST);
renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_S,
GL_CLAMP_TO_EDGE);
renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
#ifdef __MACOSX__
#ifndef GL_TEXTURE_STORAGE_HINT_APPLE
#define GL_TEXTURE_STORAGE_HINT_APPLE 0x85BC
#endif
#ifndef STORAGE_CACHED_APPLE
#define STORAGE_CACHED_APPLE 0x85BE
#endif
#ifndef STORAGE_SHARED_APPLE
#define STORAGE_SHARED_APPLE 0x85BF
#endif
if (texture->access == SDL_TEXTUREACCESS_STREAMING) {
renderdata->glTexParameteri(data->type, GL_TEXTURE_STORAGE_HINT_APPLE,
GL_STORAGE_SHARED_APPLE);
} else {
renderdata->glTexParameteri(data->type, GL_TEXTURE_STORAGE_HINT_APPLE,
GL_STORAGE_CACHED_APPLE);
}
if (data->pixels && internalFormat == GL_RGBA && format == GL_BGRA
&& type == GL_UNSIGNED_INT_8_8_8_8_REV && data->pixels) {
renderdata->glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE);
renderdata->glTexImage2D(data->type, 0, internalFormat, texture_w,
texture_h, 0, format, type, data->pixels);
} else
#endif
{
renderdata->glTexImage2D(data->type, 0, internalFormat, texture_w,
texture_h, 0, format, type, NULL);
}
result = renderdata->glGetError();
if (result != GL_NO_ERROR) {
GL_SetError("glTexImage2D()", result);