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Added SDL_RenderGetMetalLayer() and SDL_RenderGetMetalCommandEncoder()

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slouken committed Dec 8, 2017
1 parent c403c0f commit cf3d450313d2745b7d9e71a357e50722e1c53da0
@@ -898,6 +898,27 @@ extern DECLSPEC int SDLCALL SDL_GL_BindTexture(SDL_Texture *texture, float *texw
*/
extern DECLSPEC int SDLCALL SDL_GL_UnbindTexture(SDL_Texture *texture);

/**
* \brief Get the CAMetalLayer associated with the given Metal renderer
*
* \param renderer The renderer to query
*
* \return CAMetalLayer* on success, or NULL if the renderer isn't a Metal renderer
*
* \sa SDL_RenderGetMetalCommandEncoder()
*/
extern DECLSPEC void *SDLCALL SDL_RenderGetMetalLayer(SDL_Renderer * renderer);

/**
* \brief Get the Metal command encoder for the current frame
*
* \param renderer The renderer to query
*
* \return id<MTLRenderCommandEncoder> on success, or NULL if the renderer isn't a Metal renderer
*
* \sa SDL_RenderGetMetalLayer()
*/
extern DECLSPEC void *SDLCALL SDL_RenderGetMetalCommandEncoder(SDL_Renderer * renderer);

/* Ends C function definitions when using C++ */
#ifdef __cplusplus
@@ -663,3 +663,5 @@
#define SDL_SetYUVConversionMode SDL_SetYUVConversionMode_REAL
#define SDL_GetYUVConversionMode SDL_GetYUVConversionMode_REAL
#define SDL_GetYUVConversionModeForResolution SDL_GetYUVConversionModeForResolution_REAL
#define SDL_RenderGetMetalLayer SDL_RenderGetMetalLayer_REAL
#define SDL_RenderGetMetalCommandEncoder SDL_RenderGetMetalCommandEncoder_REAL
@@ -697,3 +697,5 @@ SDL_DYNAPI_PROC(float,SDL_fmodf,(float a, float b),(a,b),return)
SDL_DYNAPI_PROC(void,SDL_SetYUVConversionMode,(SDL_YUV_CONVERSION_MODE a),(a),)
SDL_DYNAPI_PROC(SDL_YUV_CONVERSION_MODE,SDL_GetYUVConversionMode,(void),(),return)
SDL_DYNAPI_PROC(SDL_YUV_CONVERSION_MODE,SDL_GetYUVConversionModeForResolution,(int a, int b),(a,b),return)
SDL_DYNAPI_PROC(void*,SDL_RenderGetMetalLayer,(SDL_Renderer *a),(a),return)
SDL_DYNAPI_PROC(void*,SDL_RenderGetMetalCommandEncoder,(SDL_Renderer *a),(a),return)
@@ -2123,6 +2123,28 @@ int SDL_GL_UnbindTexture(SDL_Texture *texture)
return SDL_Unsupported();
}

void *
SDL_RenderGetMetalLayer(SDL_Renderer * renderer)
{
CHECK_RENDERER_MAGIC(renderer, NULL);

if (renderer->GetMetalLayer) {
return renderer->GetMetalLayer(renderer);
}
return NULL;
}

void *
SDL_RenderGetMetalCommandEncoder(SDL_Renderer * renderer)
{
CHECK_RENDERER_MAGIC(renderer, NULL);

if (renderer->GetMetalCommandEncoder) {
return renderer->GetMetalCommandEncoder(renderer);
}
return NULL;
}

static SDL_BlendMode
SDL_GetShortBlendMode(SDL_BlendMode blendMode)
{
@@ -123,6 +123,9 @@ struct SDL_Renderer
int (*GL_BindTexture) (SDL_Renderer * renderer, SDL_Texture *texture, float *texw, float *texh);
int (*GL_UnbindTexture) (SDL_Renderer * renderer, SDL_Texture *texture);

void *(*GetMetalLayer) (SDL_Renderer * renderer);
void *(*GetMetalCommandEncoder) (SDL_Renderer * renderer);

/* The current renderer info */
SDL_RendererInfo info;

@@ -81,6 +81,8 @@ static int METAL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect
static void METAL_RenderPresent(SDL_Renderer * renderer);
static void METAL_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture);
static void METAL_DestroyRenderer(SDL_Renderer * renderer);
static void *METAL_GetMetalLayer(SDL_Renderer * renderer);
static void *METAL_GetMetalCommandEncoder(SDL_Renderer * renderer);

SDL_RenderDriver METAL_RenderDriver = {
METAL_CreateRenderer,
@@ -328,6 +330,8 @@ @implementation METAL_RenderData
renderer->RenderPresent = METAL_RenderPresent;
renderer->DestroyTexture = METAL_DestroyTexture;
renderer->DestroyRenderer = METAL_DestroyRenderer;
renderer->GetMetalLayer = METAL_GetMetalLayer;
renderer->GetMetalCommandEncoder = METAL_GetMetalCommandEncoder;

renderer->info = METAL_RenderDriver.info;
renderer->info.flags = (SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE);
@@ -786,6 +790,19 @@ static void METAL_ActivateRenderer(SDL_Renderer * renderer)
SDL_free(renderer);
}}

void *METAL_GetMetalLayer(SDL_Renderer * renderer)
{ @autoreleasepool {
METAL_RenderData *data = (__bridge METAL_RenderData *) renderer->driverdata;
return (__bridge void*)data.mtllayer;
}}

void *METAL_GetMetalCommandEncoder(SDL_Renderer * renderer)
{ @autoreleasepool {
METAL_ActivateRenderer(renderer);
METAL_RenderData *data = (__bridge METAL_RenderData *) renderer->driverdata;
return (__bridge void*)data.mtlcmdencoder;
}}

#endif /* SDL_VIDEO_RENDER_METAL && !SDL_RENDER_DISABLED */

/* vi: set ts=4 sw=4 expandtab: */

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