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Added SDL_GetRenderTarget() API function

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Also fixed a bug with setting logical size for a render target.
This commit is contained in:
Sam Lantinga 2012-10-12 02:20:10 -07:00
parent f89cf7c725
commit 59fea78fe0
2 changed files with 20 additions and 1 deletions
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11
include/SDL_render.h
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@ -413,10 +413,21 @@ extern DECLSPEC SDL_bool SDLCALL SDL_RenderTargetSupported(SDL_Renderer *rendere
* \param texture The targeted texture, which must be created with the SDL_TEXTUREACCESS_TARGET flag, or NULL for the default render target
*
* \return 0 on success, or -1 on error
*
* \sa SDL_GetRenderTarget()
*/
extern DECLSPEC int SDLCALL SDL_SetRenderTarget(SDL_Renderer *renderer,
SDL_Texture *texture);
/**
* \brief Get the current render target or NULL for the default render target.
*
* \return The current render target
*
* \sa SDL_SetRenderTarget()
*/
extern DECLSPEC SDL_Texture * SDLCALL SDL_GetRenderTarget(SDL_Renderer *renderer);
/**
* \brief Set device independent resolution for rendering
*

10
src/render/SDL_render.c
View file

@ -952,6 +952,12 @@ SDL_SetRenderTarget(SDL_Renderer *renderer, SDL_Texture *texture)
return 0;
}
SDL_Texture *
SDL_GetRenderTarget(SDL_Renderer *renderer)
{
return renderer->target;
}
static int
UpdateLogicalSize(SDL_Renderer *renderer)
{
@ -961,7 +967,9 @@ UpdateLogicalSize(SDL_Renderer *renderer)
float scale;
SDL_Rect viewport;
if (renderer->window) {
if (renderer->target) {
SDL_QueryTexture(renderer->target, NULL, NULL, &w, &h);
} else if (renderer->window) {
SDL_GetWindowSize(renderer->window, &w, &h);
} else {
/* FIXME */