pandory500/SDL-mirror
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Switch OpenGL contexts when switching render contexts.

Browse source 
Query the maximum texture size and show the current render parameters.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401968
This commit is contained in:
Sam Lantinga 2006-07-22 19:51:48 +00:00
parent 5c1901a93d
commit 68df2209ba
4 changed files with 31 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/video/SDL_renderer_gl.c
View file

@ -33,6 +33,7 @@
/* OpenGL renderer implementation */
static SDL_Renderer *GL_CreateRenderer(SDL_Window * window, Uint32 flags);
static int GL_ActivateRenderer(SDL_Renderer * renderer);
static int GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);
static int GL_SetTexturePalette(SDL_Renderer * renderer,
SDL_Texture * texture,
@ -147,6 +148,7 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
return NULL;
}
renderer->ActivateRenderer = GL_ActivateRenderer;
renderer->CreateTexture = GL_CreateTexture;
renderer->SetTexturePalette = GL_SetTexturePalette;
renderer->GetTexturePalette = GL_GetTexturePalette;
@ -185,9 +187,8 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
renderer->info.flags |= SDL_Renderer_PresentVSync;
}
/* FIXME: Add a function to make the rendering context current when selecting the renderer */
/* FIXME: Query maximum texture size */
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &renderer->info.max_texture_width);
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &renderer->info.max_texture_height);
/* FIXME: Check for GL_ARB_texture_rectangle and GL_EXT_texture_rectangle */
@ -209,6 +210,15 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
return renderer;
}
static int
GL_ActivateRenderer(SDL_Renderer * renderer)
{
GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
SDL_Window *window = SDL_GetWindowFromID(renderer->window);
return SDL_GL_MakeCurrent(window->id, data->context);
}
static __inline__ int
power_of_2(int input)
{