shithub: cstory

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Document a "bug" in the SDL_Texture backend

--- a/src/Backends/Rendering/SDLTexture.cpp

+++ b/src/Backends/Rendering/SDLTexture.cpp

@@ -363,6 +363,11 @@

 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;