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Fix X11_FillRects to work with double buffering as well as triple buffering. This requires that the buffer pixmap be cleared after every render.

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This commit is contained in:
Sunny Sachanandani
2010-06-02 11:45:15 +05:30
parent 0ed5e53314
commit e51d41dac5
1 changed files with 20 additions and 2 deletions
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22
src/video/x11/SDL_x11render.c
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@@ -290,6 +290,8 @@ X11_CreateRenderer(SDL_Window * window, Uint32 flags)
if(!data->pixmap_picts[i]) {
data->xrender_available = SDL_FALSE;
}
XRenderComposite(data->display, PictOpClear, data->pixmap_picts[i], None, data->pixmap_picts[i],
0, 0, 0, 0, 0, 0, window->w, window->h);
}
#endif
}
@@ -374,6 +376,8 @@ X11_DisplayModeChanged(SDL_Renderer * renderer)
if(!data->pixmap_picts[i]) {
data->xrender_available = SDL_FALSE;
}
XRenderComposite(data->display, PictOpClear, data->pixmap_picts[i], None, data->pixmap_picts[i],
0, 0, 0, 0, 0, 0, window->w, window->h);
}
#endif
}
@@ -735,6 +739,13 @@ X11_SetDrawBlendMode(SDL_Renderer * renderer)
switch (renderer->blendMode) {
case SDL_BLENDMODE_NONE:
return 0;
#ifdef SDL_VIDEO_DRIVER_X11_XRENDER
case SDL_BLENDMODE_MASK: // Use src pict as mask
case SDL_BLENDMODE_ADD: // PictOpAdd
case SDL_BLENDMODE_BLEND: // PictOpOver
/* FIXME case SDL_BLENDMODE_MOD: */
#endif
return 0;
default:
SDL_Unsupported();
renderer->blendMode = SDL_BLENDMODE_NONE;
@@ -1038,7 +1049,7 @@ X11_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect ** rects, int count)
xrender_foreground_color.green = ((unsigned short)renderer->g + 1) * ((unsigned short)renderer->a + 1) - 1;
xrender_foreground_color.blue = ((unsigned short)renderer->b + 1) * ((unsigned short)renderer->a + 1) - 1;
xrender_foreground_color.alpha = ((unsigned short)renderer->a + 1) * ((unsigned short)renderer->a + 1) - 1;
XRenderFillRectangles(data->display, PictOpSrc, data->drawable_pict,
XRenderFillRectangles(data->display, PictOpOver, data->drawable_pict,
&xrender_foreground_color, xrects, xcount);
}
else
@@ -1241,7 +1252,7 @@ X11_RenderPresent(SDL_Renderer * renderer)
#ifdef SDL_VIDEO_DRIVER_X11_XRENDER
if(data->xrender_available == SDL_TRUE)
{
XRenderComposite(data->display, PictOpSrc, data->drawable_pict, None, data->xwindow_pict,
XRenderComposite(data->display, PictOpOver, data->drawable_pict, None, data->xwindow_pict,
rect->x, rect->y, 0, 0, rect->x, rect->y, rect->w, rect->h);
}
else
@@ -1253,6 +1264,13 @@ X11_RenderPresent(SDL_Renderer * renderer)
}
}
SDL_ClearDirtyRects(&data->dirty);
#ifdef SDL_VIDEO_DRIVER_X11_XRENDER
// Clear each pixmap after a render
if(data->xrender_available == SDL_TRUE) {
XRenderComposite(data->display, PictOpClear, data->drawable_pict, None, data->drawable_pict,
0, 0, 0, 0, 0, 0, renderer->window->w, renderer->window->h);
}
#endif
}
XSync(data->display, False);