gecko-dev/gfx/layers/D3D9SurfaceImage.cpp

176 lines
5.3 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "D3D9SurfaceImage.h"
#include "gfxImageSurface.h"
namespace mozilla {
namespace layers {
HRESULT
D3D9SurfaceImage::SetData(const Data& aData)
{
NS_ENSURE_TRUE(aData.mSurface, E_POINTER);
HRESULT hr;
RefPtr<IDirect3DSurface9> surface = aData.mSurface;
RefPtr<IDirect3DDevice9> device;
hr = surface->GetDevice(byRef(device));
NS_ENSURE_TRUE(SUCCEEDED(hr), E_FAIL);
RefPtr<IDirect3D9> d3d9;
hr = device->GetDirect3D(byRef(d3d9));
NS_ENSURE_TRUE(SUCCEEDED(hr), E_FAIL);
D3DSURFACE_DESC desc;
surface->GetDesc(&desc);
// Ensure we can convert the textures format to RGB conversion
// in StretchRect. Fail if we can't.
hr = d3d9->CheckDeviceFormatConversion(D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
desc.Format,
D3DFMT_X8R8G8B8);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// DXVA surfaces aren't created sharable, so we need to copy the surface
// to a sharable texture to that it's accessible to the layer manager's
// device.
const nsIntRect& region = aData.mRegion;
RefPtr<IDirect3DTexture9> texture;
HANDLE shareHandle = NULL;
hr = device->CreateTexture(region.width,
region.height,
1,
D3DUSAGE_RENDERTARGET,
D3DFMT_X8R8G8B8,
D3DPOOL_DEFAULT,
byRef(texture),
&shareHandle);
NS_ENSURE_TRUE(SUCCEEDED(hr) && shareHandle, hr);
// Copy the image onto the texture, preforming YUV -> RGB conversion if necessary.
RefPtr<IDirect3DSurface9> textureSurface;
hr = texture->GetSurfaceLevel(0, byRef(textureSurface));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Stash the surface description for later use.
textureSurface->GetDesc(&mDesc);
RECT src = { region.x, region.y, region.x+region.width, region.y+region.height };
hr = device->StretchRect(surface, &src, textureSurface, NULL, D3DTEXF_NONE);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
// Flush the draw command now, so that by the time we come to draw this
// image, we're less likely to need to wait for the draw operation to
// complete.
RefPtr<IDirect3DQuery9> query;
hr = device->CreateQuery(D3DQUERYTYPE_EVENT, byRef(query));
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
hr = query->Issue(D3DISSUE_END);
NS_ENSURE_TRUE(SUCCEEDED(hr), hr);
mTexture = texture;
mShareHandle = shareHandle;
mSize = gfxIntSize(region.width, region.height);
mQuery = query;
return S_OK;
}
void
D3D9SurfaceImage::EnsureSynchronized()
{
if (!mQuery) {
// Not setup, or already synchronized.
return;
}
int iterations = 0;
while (iterations < 10 && S_FALSE == mQuery->GetData(NULL, 0, D3DGETDATA_FLUSH)) {
Sleep(1);
iterations++;
}
mQuery = nullptr;
}
HANDLE
D3D9SurfaceImage::GetShareHandle()
{
// Ensure the image has completed its synchronization,
// and safe to used by the caller on another device.
EnsureSynchronized();
return mShareHandle;
}
const D3DSURFACE_DESC&
D3D9SurfaceImage::GetDesc() const
{
return mDesc;
}
gfxIntSize
D3D9SurfaceImage::GetSize()
{
return mSize;
}
already_AddRefed<gfxASurface>
D3D9SurfaceImage::GetAsSurface()
{
NS_ENSURE_TRUE(mTexture, nullptr);
HRESULT hr;
nsRefPtr<gfxImageSurface> surface =
new gfxImageSurface(mSize, gfxASurface::ImageFormatRGB24);
if (!surface->CairoSurface() || surface->CairoStatus()) {
NS_WARNING("Failed to created Cairo image surface for D3D9SurfaceImage.");
return nullptr;
}
// Ensure that the texture is ready to be used.
EnsureSynchronized();
// Readback the texture from GPU memory into system memory, so that
// we can copy it into the Cairo image. This is expensive.
RefPtr<IDirect3DSurface9> textureSurface;
hr = mTexture->GetSurfaceLevel(0, byRef(textureSurface));
NS_ENSURE_TRUE(SUCCEEDED(hr), nullptr);
RefPtr<IDirect3DDevice9> device;
hr = mTexture->GetDevice(byRef(device));
NS_ENSURE_TRUE(SUCCEEDED(hr), nullptr);
RefPtr<IDirect3DSurface9> systemMemorySurface;
hr = device->CreateOffscreenPlainSurface(mDesc.Width,
mDesc.Height,
D3DFMT_X8R8G8B8,
D3DPOOL_SYSTEMMEM,
byRef(systemMemorySurface),
0);
NS_ENSURE_TRUE(SUCCEEDED(hr), nullptr);
hr = device->GetRenderTargetData(textureSurface, systemMemorySurface);
NS_ENSURE_TRUE(SUCCEEDED(hr), nullptr);
D3DLOCKED_RECT rect;
hr = systemMemorySurface->LockRect(&rect, NULL, 0);
NS_ENSURE_TRUE(SUCCEEDED(hr), nullptr);
const unsigned char* src = (const unsigned char*)(rect.pBits);
const unsigned srcPitch = rect.Pitch;
for (int y = 0; y < mSize.height; y++) {
memcpy(surface->Data() + surface->Stride() * y,
(unsigned char*)(src) + srcPitch * y,
mSize.width * 4);
}
systemMemorySurface->UnlockRect();
return surface.forget();
}
} /* layers */
} /* mozilla */