DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Header

Mercurial (5b81998bb7ab)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
/* -*- 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 */