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Fixed bug 4914 - Expose SDL_ScaleMode and add SDL_SetTextureScaleMode/SDL_GetTextureScaleMode

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Konrad

This was something rather trivial to add, but asked at least several times before (I did google about it as well).

It should be possible to dynamically change scaling mode of the texture. It is actually trivial task, but until now it was only possible with a hint before creating a texture.

I needed it for my game as well, so I took the liberty of writing it myself.

This patch adds following functions:

SDL_SetTextureScaleMode(SDL_Texture * texture, SDL_ScaleMode scaleMode);
SDL_GetTextureScaleMode(SDL_Texture * texture, SDL_ScaleMode *scaleMode);

That way you can change texture scaling on the fly.
This commit is contained in:
Sam Lantinga 2019-12-22 13:39:44 -08:00
parent f0cee3edec
commit 5e19e66c73
14 changed files with 212 additions and 7 deletions
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27
src/render/SDL_render.c
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@ -1388,6 +1388,33 @@ SDL_GetTextureBlendMode(SDL_Texture * texture, SDL_BlendMode *blendMode)
return 0;
}
int
SDL_SetTextureScaleMode(SDL_Texture * texture, SDL_ScaleMode scaleMode)
{
SDL_Renderer *renderer;
CHECK_TEXTURE_MAGIC(texture, -1);
renderer = texture->renderer;
renderer->SetTextureScaleMode(renderer, texture, scaleMode);
texture->scaleMode = scaleMode;
if (texture->native) {
return SDL_SetTextureScaleMode(texture->native, scaleMode);
}
return 0;
}
int
SDL_GetTextureScaleMode(SDL_Texture * texture, SDL_ScaleMode *scaleMode)
{
CHECK_TEXTURE_MAGIC(texture, -1);
if (scaleMode) {
*scaleMode = texture->scaleMode;
}
return 0;
}
static int
SDL_UpdateTextureYUV(SDL_Texture * texture, const SDL_Rect * rect,
const void *pixels, int pitch)