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Document a "bug" in the SDL_Texture backend

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Clownacy 2019-07-23 23:11:24 +01:00
parent d3129bc4bc
commit e170485849
1 changed files with 5 additions and 0 deletions
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5
src/Backends/Rendering/SDLTexture.cpp
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@ -363,6 +363,11 @@ void Backend_UnloadGlyph(Backend_Glyph *glyph)
void Backend_DrawGlyph(Backend_Surface *surface, Backend_Glyph *glyph, long x, long y, const unsigned char *colours)
{
// This is actually slightly imperfect: the SDL_Texture side of things uses alpha, not a colour-key,
// so the bug where the font is blended with the colour key doesn't occur. SDL_Textures don't support
// colour-keys, so the next best thing is relying on the software fallback, but I don't like the idea
// of uploading textures to the GPU every time a glyph is drawn.
RECT rect;
rect.left = 0;
rect.top = 0;