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Added SDL_RenderGetD3D11Device() to get access to the device associated with the D3D11 renderer

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This commit is contained in:
Sam Lantinga 2021-01-01 11:12:30 -08:00
parent 5f0b2a7f54
commit 223af86c62
4 changed files with 42 additions and 1 deletions
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10
include/SDL_system.h
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@ -59,12 +59,20 @@ extern DECLSPEC int SDLCALL SDL_Direct3D9GetAdapterIndex( int displayIndex );
typedef struct IDirect3DDevice9 IDirect3DDevice9;
/**
\brief Returns the D3D device associated with a renderer, or NULL if it's not a D3D renderer.
\brief Returns the D3D9 device associated with a renderer, or NULL if it's not a D3D9 renderer.
Once you are done using the device, you should release it to avoid a resource leak.
*/
extern DECLSPEC IDirect3DDevice9* SDLCALL SDL_RenderGetD3D9Device(SDL_Renderer * renderer);
typedef struct ID3D11Device ID3D11Device;
/**
\brief Returns the D3D11 device associated with a renderer, or NULL if it's not a D3D11 renderer.
Once you are done using the device, you should release it to avoid a resource leak.
*/
extern DECLSPEC ID3D11Device* SDLCALL SDL_RenderGetD3D11Device(SDL_Renderer * renderer);
/**
\brief Returns the DXGI Adapter and Output indices for the specified display index.

1
src/dynapi/SDL_dynapi_overrides.h
View file

@ -793,3 +793,4 @@
#define SDL_lround SDL_lround_REAL
#define SDL_lroundf SDL_lroundf_REAL
#define SDL_SoftStretchLinear SDL_SoftStretchLinear_REAL
#define SDL_RenderGetD3D11Device SDL_RenderGetD3D11Device_REAL

3
src/dynapi/SDL_dynapi_procs.h
View file

@ -854,3 +854,6 @@ SDL_DYNAPI_PROC(float,SDL_roundf,(float a),(a),return)
SDL_DYNAPI_PROC(long,SDL_lround,(double a),(a),return)
SDL_DYNAPI_PROC(long,SDL_lroundf,(float a),(a),return)
SDL_DYNAPI_PROC(int,SDL_SoftStretchLinear,(SDL_Surface *a, const SDL_Rect *b, SDL_Surface *c, const SDL_Rect *d),(a,b,c,d),return)
#ifdef __WIN32__
SDL_DYNAPI_PROC(ID3D11Device*,SDL_RenderGetD3D11Device,(SDL_Renderer *a),(a),return)
#endif

29
src/render/direct3d11/SDL_render_d3d11.c
View file

@ -20,6 +20,9 @@
*/
#include "../../SDL_internal.h"
#include "SDL_render.h"
#include "SDL_system.h"
#if SDL_VIDEO_RENDER_D3D11 && !SDL_RENDER_DISABLED
#define COBJMACROS
@ -2595,4 +2598,30 @@ SDL_RenderDriver D3D11_RenderDriver = {
#endif /* SDL_VIDEO_RENDER_D3D11 && !SDL_RENDER_DISABLED */
#ifdef __WIN32__
/* This function needs to always exist on Windows, for the Dynamic API. */
ID3D11Device *
SDL_RenderGetD3D11Device(SDL_Renderer * renderer)
{
ID3D11Device *device = NULL;
#if SDL_VIDEO_RENDER_D3D11 && !SDL_RENDER_DISABLED
D3D11_RenderData *data = (D3D11_RenderData *) renderer->driverdata;
/* Make sure that this is a D3D renderer */
if (renderer->DestroyRenderer != D3D11_DestroyRenderer) {
SDL_SetError("Renderer is not a D3D11 renderer");
return NULL;
}
device = (ID3D11Device *)data->d3dDevice;
if (device) {
ID3D11Device_AddRef(device);
}
#endif /* SDL_VIDEO_RENDER_D3D11 && !SDL_RENDER_DISABLED */
return device;
}
#endif /* __WIN32__ */
/* vi: set ts=4 sw=4 expandtab: */