pandory500/SDL-mirror
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Allow the render context to do necessary work when the video mode changes.

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402017
This commit is contained in:
Sam Lantinga 2006-08-06 04:39:13 +00:00
parent 461c8e2db4
commit a1ced0d971
7 changed files with 96 additions and 23 deletions
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35
src/video/SDL_renderer_gl.c
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@ -34,6 +34,7 @@
static SDL_Renderer *GL_CreateRenderer(SDL_Window * window, Uint32 flags);
static int GL_ActivateRenderer(SDL_Renderer * renderer);
static int GL_DisplayModeChanged(SDL_Renderer * renderer);
static int GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);
static int GL_SetTexturePalette(SDL_Renderer * renderer,
SDL_Texture * texture,
@ -97,6 +98,7 @@ SDL_RenderDriver GL_RenderDriver = {
typedef struct
{
SDL_GLContext context;
SDL_bool updateSize;
SDL_bool GL_ARB_texture_rectangle_supported;
int blendMode;
int scaleMode;
@ -219,6 +221,7 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
}
renderer->ActivateRenderer = GL_ActivateRenderer;
renderer->DisplayModeChanged = GL_DisplayModeChanged;
renderer->CreateTexture = GL_CreateTexture;
renderer->SetTexturePalette = GL_SetTexturePalette;
renderer->GetTexturePalette = GL_GetTexturePalette;
@ -282,13 +285,7 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
} else {
data->glEnable(GL_TEXTURE_2D);
}
data->glMatrixMode(GL_PROJECTION);
data->glLoadIdentity();
data->glMatrixMode(GL_MODELVIEW);
data->glLoadIdentity();
data->glViewport(0, 0, window->w, window->h);
data->glOrtho(0.0, (GLdouble) window->w, (GLdouble) window->h, 0.0, 0.0,
1.0);
data->updateSize = SDL_TRUE;
return renderer;
}
@ -299,7 +296,29 @@ 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);
if (SDL_GL_MakeCurrent(window->id, data->context) < 0) {
return -1;
}
if (data->updateSize) {
data->glMatrixMode(GL_PROJECTION);
data->glLoadIdentity();
data->glMatrixMode(GL_MODELVIEW);
data->glLoadIdentity();
data->glViewport(0, 0, window->w, window->h);
data->glOrtho(0.0, (GLdouble) window->w, (GLdouble) window->h, 0.0,
0.0, 1.0);
data->updateSize = SDL_FALSE;
}
return 0;
}
static int
GL_DisplayModeChanged(SDL_Renderer * renderer)
{
GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
data->updateSize = SDL_TRUE;
return 0;
}
static __inline__ int