shithub: cstory

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Lock SDL_Surfaces

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

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

@@ -149,6 +149,8 @@

 	if (surface == NULL)

 		return NULL;

+	SDL_LockSurface(surface->sdlsurface);

+

 	*pitch = surface->sdlsurface->pitch;

 	return (unsigned char*)surface->sdlsurface->pixels;

 }

@@ -155,9 +157,10 @@

 void RenderBackend_UnlockSurface(RenderBackend_Surface *surface, unsigned int width, unsigned int height)

 {

-	(void)surface;

 	(void)width;

 	(void)height;

+

+	SDL_UnlockSurface(surface->sdlsurface);

 }

 void RenderBackend_Blit(RenderBackend_Surface *source_surface, const RenderBackend_Rect *rect, RenderBackend_Surface *destination_surface, long x, long y, bool colour_key)

@@ -225,6 +228,8 @@

 void RenderBackend_UploadGlyph(RenderBackend_GlyphAtlas *atlas, size_t x, size_t y, const unsigned char *pixels, size_t width, size_t height)

 {

+	SDL_LockSurface(atlas->sdlsurface);

+

 	const unsigned char *source_pointer = pixels;

 	for (size_t iy = 0; iy < height; ++iy)

@@ -239,6 +244,8 @@

 			*destination_pointer++ = *source_pointer++;

 		}

 	}

+

+	SDL_UnlockSurface(atlas->sdlsurface);

 }

 void RenderBackend_PrepareToDrawGlyphs(RenderBackend_GlyphAtlas *atlas, RenderBackend_Surface *destination_surface, const unsigned char *colour_channels)