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SDL: un-hardcode some GL operations

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This commit is contained in:
Pawel Kolodziejski 2014-07-13 08:16:44 +02:00
parent d0e1f8dca5
commit ed6de94106
2 changed files with 7 additions and 4 deletions
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10
backends/graphics/surfacesdl/surfacesdl-graphics.cpp
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@ -305,6 +305,7 @@ Graphics::PixelBuffer SurfaceSdlGraphicsManager::setupScreen(int screenW, int sc
#endif
_overlayscreen = SDL_CreateRGBSurface(SDL_SWSURFACE, _overlayWidth, _overlayHeight, 16,
rmask, gmask, bmask, amask);
_overlayScreenGLFormat = GL_UNSIGNED_SHORT_5_6_5;
} else
#endif
{
@ -361,7 +362,7 @@ void SurfaceSdlGraphicsManager::updateOverlayTextures() {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, BITMAP_TEXTURE_SIZE, BITMAP_TEXTURE_SIZE, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, NULL);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, BITMAP_TEXTURE_SIZE, BITMAP_TEXTURE_SIZE, 0, GL_RGB, _overlayScreenGLFormat, NULL);
}
int bpp = _overlayscreen->format->BytesPerPixel;
@ -375,7 +376,7 @@ void SurfaceSdlGraphicsManager::updateOverlayTextures() {
int t_width = (x + BITMAP_TEXTURE_SIZE >= _overlayWidth) ? (_overlayWidth - x) : BITMAP_TEXTURE_SIZE;
int t_height = (y + BITMAP_TEXTURE_SIZE >= _overlayHeight) ? (_overlayHeight - y) : BITMAP_TEXTURE_SIZE;
glBindTexture(GL_TEXTURE_2D, _overlayTexIds[curTexIdx]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, t_width, t_height, GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, t_width, t_height, GL_RGB, _overlayScreenGLFormat,
(byte *)_overlayscreen->pixels + (y * _overlayscreen->pitch) + (bpp * x));
curTexIdx++;
}
@ -592,14 +593,15 @@ void SurfaceSdlGraphicsManager::clearOverlay() {
#ifdef USE_OPENGL
if (_opengl) {
SDL_Surface *tmp = SDL_CreateRGBSurface(SDL_SWSURFACE, _overlayWidth, _overlayHeight, 16,
SDL_Surface *tmp = SDL_CreateRGBSurface(SDL_SWSURFACE, _overlayWidth, _overlayHeight,
_overlayscreen->format->BytesPerPixel * 8,
_overlayscreen->format->Rmask, _overlayscreen->format->Gmask,
_overlayscreen->format->Bmask, _overlayscreen->format->Amask);
SDL_LockSurface(tmp);
SDL_LockSurface(_overlayscreen);
glReadPixels(0, 0, _overlayWidth, _overlayHeight, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, tmp->pixels);
glReadPixels(0, 0, _overlayWidth, _overlayHeight, GL_RGB, _overlayScreenGLFormat, tmp->pixels);
// Flip pixels vertically
byte *src = (byte *)tmp->pixels;

1
backends/graphics/surfacesdl/surfacesdl-graphics.h
View File

@ -157,6 +157,7 @@ protected:
// Overlay
int _overlayNumTex;
GLuint *_overlayTexIds;
GLenum _overlayScreenGLFormat;
void updateOverlayTextures();
void drawOverlayOpenGL();