Fixed bug 3681 - SDL_UpateTexture documentation not specific enough about format requirement Simon Hug The documentation of SDL_UpateTexture does not say that the pixel data has to be in the format of the texture.
diff --git a/include/SDL_render.h b/include/SDL_render.h
index 3ccb34d..1c9c039 100644
--- a/include/SDL_render.h
+++ b/include/SDL_render.h
@@ -370,9 +370,12 @@ extern DECLSPEC int SDLCALL SDL_GetTextureBlendMode(SDL_Texture * texture,
* \param texture The texture to update
* \param rect A pointer to the rectangle of pixels to update, or NULL to
* update the entire texture.
- * \param pixels The raw pixel data.
+ * \param pixels The raw pixel data in the format of the texture.
* \param pitch The number of bytes in a row of pixel data, including padding between lines.
*
+ * The pixel data must be in the format of the texture. The pixel format can be
+ * queried with SDL_QueryTexture.
+ *
* \return 0 on success, or -1 if the texture is not valid.
*
* \note This is a fairly slow function.