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Updated OpenGL renderers

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This commit is contained in:
Clownacy 2020-09-14 23:12:18 +01:00
parent f55c965a70
commit 98f66444d7
1 changed files with 2 additions and 17 deletions
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19
src/Backends/Rendering/OpenGL3.cpp
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@ -696,29 +696,14 @@ void RenderBackend_RestoreSurface(RenderBackend_Surface *surface)
(void)surface;
}
unsigned char* RenderBackend_LockSurface(RenderBackend_Surface *surface, size_t *pitch, size_t width, size_t height)
void RenderBackend_UploadSurface(RenderBackend_Surface *surface, const unsigned char *pixels, size_t width, size_t height)
{
if (surface == NULL)
return NULL;
surface->pixels = (unsigned char*)malloc(width * height * 3);
*pitch = width * 3;
return surface->pixels;
}
void RenderBackend_UnlockSurface(RenderBackend_Surface *surface, size_t width, size_t height)
{
if (surface == NULL)
return;
// Flush the vertex buffer if we're about to modify its texture
if (surface->texture_id == last_source_texture || surface->texture_id == last_destination_texture)
FlushVertexBuffer();
glBindTexture(GL_TEXTURE_2D, surface->texture_id);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, surface->pixels);
free(surface->pixels);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, pixels);
glBindTexture(GL_TEXTURE_2D, last_source_texture);
}