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Added SDL_GetTextureDXGIResource() to get the DXGI resource associated with a render texture.

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Also switched the D3D11 and D3D12 renderers to use real NV12 textures for NV12 data.

The combination of these two changes allows us to implement 0-copy video decode and playback for D3D11 in testffmpeg without any access to the renderer internals.
This commit is contained in:
Sam Lantinga 2023-10-10 00:04:45 -07:00
parent a842446f62
commit 2bd478ae65
10 changed files with 336 additions and 265 deletions
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170
test/testffmpeg.c
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@ -20,11 +20,18 @@
#include <SDL3/SDL.h>
#include <SDL3/SDL_main.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavutil/avutil.h>
#include <libavutil/pixdesc.h>
#ifdef HAVE_EGL
#include <SDL3/SDL_opengl.h>
#include <SDL3/SDL_opengles2.h>
#include <SDL3/SDL_egl.h>
#include <libavutil/hwcontext_drm.h>
#ifndef fourcc_code
#define fourcc_code(a, b, c, d) ((uint32_t)(a) | ((uint32_t)(b) << 8) | ((uint32_t)(c) << 16) | ((uint32_t)(d) << 24))
#endif
@ -42,86 +49,8 @@
#ifdef __WIN32__
#define COBJMACROS
#include <d3d11.h>
struct D3D11_TextureData
{
ID3D11Texture2D *mainTexture;
ID3D11ShaderResourceView *mainTextureResourceView;
ID3D11RenderTargetView *mainTextureRenderTargetView;
ID3D11Texture2D *stagingTexture;
int lockedTexturePositionX;
int lockedTexturePositionY;
D3D11_FILTER scaleMode;
/* YV12 texture support */
SDL_bool yuv;
ID3D11Texture2D *mainTextureU;
ID3D11ShaderResourceView *mainTextureResourceViewU;
ID3D11Texture2D *mainTextureV;
ID3D11ShaderResourceView *mainTextureResourceViewV;
/* NV12 texture support */
SDL_bool nv12;
ID3D11Texture2D *mainTextureNV;
ID3D11ShaderResourceView *mainTextureResourceViewNV;
Uint8 *pixels;
int pitch;
SDL_Rect locked_rect;
};
/* Rendering view state */
typedef struct SDL_RenderViewState
{
int pixel_w;
int pixel_h;
SDL_Rect viewport;
SDL_Rect clip_rect;
SDL_bool clipping_enabled;
SDL_FPoint scale;
} SDL_RenderViewState;
struct SDL_Texture
{
const void *magic;
Uint32 format; /**< The pixel format of the texture */
int access; /**< SDL_TextureAccess */
int w; /**< The width of the texture */
int h; /**< The height of the texture */
int modMode; /**< The texture modulation mode */
SDL_BlendMode blendMode; /**< The texture blend mode */
SDL_ScaleMode scaleMode; /**< The texture scale mode */
SDL_Color color; /**< Texture modulation values */
SDL_RenderViewState view; /**< Target texture view state */
SDL_Renderer *renderer;
/* Support for formats not supported directly by the renderer */
SDL_Texture *native;
void /*SDL_SW_YUVTexture*/ *yuv;
void *pixels;
int pitch;
SDL_Rect locked_rect;
SDL_Surface *locked_surface; /**< Locked region exposed as a SDL surface */
Uint32 last_command_generation; /* last command queue generation this texture was in. */
struct D3D11_TextureData /*void*/ *driverdata; /**< Driver specific texture representation */
void *userdata;
SDL_Texture *prev;
SDL_Texture *next;
};
#endif /* __WIN32__ */
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavutil/avutil.h>
#include <libavutil/hwcontext_d3d11va.h>
#include <libavutil/hwcontext_drm.h>
#include <libavutil/pixdesc.h>
#endif /* __WIN32__ */
#include "icon.h"
@ -152,6 +81,7 @@ static SDL_bool has_videotoolbox_output;
#ifdef __WIN32__
static ID3D11Device *d3d11_device;
static ID3D11DeviceContext *d3d11_context;
static const GUID SDL_IID_ID3D11Resource = { 0xdc8e63f3, 0xd12b, 0x4952, { 0xb4, 0x7b, 0x5e, 0x45, 0x02, 0x6a, 0x86, 0x2d } };
#endif
static int done;
@ -406,6 +336,7 @@ static AVCodecContext *OpenVideoStream(AVFormatContext *ic, int stream, const AV
continue;
}
#ifdef __WIN32__
if (type == AV_HWDEVICE_TYPE_D3D11VA) {
AVD3D11VADeviceContext *device_context;
@ -423,7 +354,9 @@ static AVCodecContext *OpenVideoStream(AVFormatContext *ic, int stream, const AV
} else {
SDL_Log("Using %s hardware acceleration with pixel format %s\n", av_hwdevice_get_type_name(config->device_type), av_get_pix_fmt_name(config->pix_fmt));
}
} else {
} else
#endif
{
result = av_hwdevice_ctx_create(&context->hw_device_ctx, type, NULL, NULL, 0);
if (result < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create hardware device context: %s", av_err2str(result));
@ -598,6 +531,7 @@ static SDL_bool GetTextureForVAAPIFrame(AVFrame *frame, SDL_Texture **texture)
static SDL_bool GetTextureForD3D11Frame(AVFrame *frame, SDL_Texture **texture)
{
#ifdef __WIN32__
int texture_width = 0, texture_height = 0;
ID3D11Texture2D *pTexture = (ID3D11Texture2D *)frame->data[0];
UINT iSliceIndex = (UINT)(uintptr_t)frame->data[1];
@ -609,7 +543,10 @@ static SDL_bool GetTextureForD3D11Frame(AVFrame *frame, SDL_Texture **texture)
return SDL_FALSE;
}
if (!*texture || (UINT)(*texture)->w != desc.Width || (UINT)(*texture)->h != desc.Height) {
if (*texture) {
SDL_QueryTexture(*texture, NULL, NULL, &texture_width, &texture_height);
}
if (!*texture || (UINT)texture_width != desc.Width || (UINT)texture_height != desc.Height) {
if (*texture) {
SDL_DestroyTexture(*texture);
} else {
@ -621,64 +558,23 @@ static SDL_bool GetTextureForD3D11Frame(AVFrame *frame, SDL_Texture **texture)
if (!*texture) {
return SDL_FALSE;
}
/* Set up the resource views for this texture */
struct D3D11_TextureData *pTextureData = (*texture)->driverdata;
if (pTextureData->mainTexture) {
ID3D11Texture2D_Release(pTextureData->mainTexture);
pTextureData->mainTexture = NULL;
}
if (pTextureData->mainTextureResourceView) {
ID3D11ShaderResourceView_Release(pTextureData->mainTextureResourceView);
pTextureData->mainTextureResourceView = NULL;
}
if (pTextureData->mainTextureNV) {
ID3D11Texture2D_Release(pTextureData->mainTextureNV);
pTextureData->mainTextureNV = NULL;
}
if (pTextureData->mainTextureResourceViewNV) {
ID3D11ShaderResourceView_Release(pTextureData->mainTextureResourceViewNV);
pTextureData->mainTextureResourceViewNV = NULL;
}
desc.ArraySize = 1;
desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
HRESULT result = ID3D11Device_CreateTexture2D(d3d11_device, &desc, NULL, &pTextureData->mainTexture);
if (FAILED(result)) {
SDL_SetError("Couldn't create main texture: 0x%x", result);
return SDL_FALSE;
}
pTextureData->mainTextureNV = pTextureData->mainTexture;
ID3D11Texture2D_AddRef(pTextureData->mainTextureNV);
D3D11_SHADER_RESOURCE_VIEW_DESC resourceViewDesc;
resourceViewDesc.Format = DXGI_FORMAT_R8_UNORM;
resourceViewDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
resourceViewDesc.Texture2D.MostDetailedMip = 0;
resourceViewDesc.Texture2D.MipLevels = 1;
result = ID3D11Device_CreateShaderResourceView(d3d11_device,
(ID3D11Resource *)pTextureData->mainTexture,
&resourceViewDesc,
&pTextureData->mainTextureResourceView);
if (FAILED(result)) {
SDL_SetError("Couldn't create main texture view: 0x%x", result);
return SDL_FALSE;
}
resourceViewDesc.Format = DXGI_FORMAT_R8G8_UNORM;
result = ID3D11Device_CreateShaderResourceView(d3d11_device,
(ID3D11Resource *)pTextureData->mainTexture,
&resourceViewDesc,
&pTextureData->mainTextureResourceViewNV);
if (FAILED(result)) {
SDL_SetError("Couldn't create secondary texture view: 0x%x", result);
return SDL_FALSE;
}
}
ID3D11DeviceContext_CopySubresourceRegion(d3d11_context, (ID3D11Resource *)(*texture)->driverdata->mainTexture, 0, 0, 0, 0, (ID3D11Resource *)pTexture, iSliceIndex, NULL);
IDXGIResource *dxgi_resource = SDL_GetTextureDXGIResource(*texture);
if (!dxgi_resource) {
return SDL_FALSE;
}
ID3D11Resource *dx11_resource = NULL;
HRESULT result = IDXGIResource_QueryInterface(dxgi_resource, &SDL_IID_ID3D11Resource, (void **)&dx11_resource);
IDXGIResource_Release(dxgi_resource);
if (FAILED(result)) {
SDL_SetError("Couldn't get texture ID3D11Resource interface: 0x%x", result);
return SDL_FALSE;
}
ID3D11DeviceContext_CopySubresourceRegion(d3d11_context, dx11_resource, 0, 0, 0, 0, (ID3D11Resource *)pTexture, iSliceIndex, NULL);
ID3D11Resource_Release(dx11_resource);
return SDL_TRUE;
#else
return SDL_FALSE;