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 (31ec81b5d7bb)

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258
/* -*- 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 "SourceSurfaceD2DTarget.h"
#include "Logging.h"
#include "DrawTargetD2D.h"
#include "Tools.h"

#include <algorithm>

namespace mozilla {
namespace gfx {

SourceSurfaceD2DTarget::SourceSurfaceD2DTarget(DrawTargetD2D* aDrawTarget,
                                               ID3D10Texture2D* aTexture,
                                               SurfaceFormat aFormat)
  : mDrawTarget(aDrawTarget)
  , mTexture(aTexture)
  , mFormat(aFormat)
  , mOwnsCopy(false)
{
}

SourceSurfaceD2DTarget::~SourceSurfaceD2DTarget()
{
  // We don't need to do anything special here to notify our mDrawTarget. It must
  // already have cleared its mSnapshot field, otherwise this object would
  // be kept alive.
  if (mOwnsCopy) {
    IntSize size = GetSize();

    DrawTargetD2D::mVRAMUsageSS -= size.width * size.height * BytesPerPixel(mFormat);
  }
}

IntSize
SourceSurfaceD2DTarget::GetSize() const
{
  D3D10_TEXTURE2D_DESC desc;
  mTexture->GetDesc(&desc);

  return IntSize(desc.Width, desc.Height);
}

SurfaceFormat
SourceSurfaceD2DTarget::GetFormat() const
{
  return mFormat;
}

TemporaryRef<DataSourceSurface>
SourceSurfaceD2DTarget::GetDataSurface()
{
  RefPtr<DataSourceSurfaceD2DTarget> dataSurf =
    new DataSourceSurfaceD2DTarget();

  D3D10_TEXTURE2D_DESC desc;
  mTexture->GetDesc(&desc);

  desc.CPUAccessFlags = D3D10_CPU_ACCESS_READ;
  desc.Usage = D3D10_USAGE_STAGING;
  desc.BindFlags = 0;
  desc.MiscFlags = 0;

  HRESULT hr = Factory::GetDirect3D10Device()->CreateTexture2D(&desc, nullptr, byRef(dataSurf->mTexture));

  if (FAILED(hr)) {
    gfxDebug() << "Failed to create staging texture for SourceSurface. Code: " << hr;
    return nullptr;
  }
  Factory::GetDirect3D10Device()->CopyResource(dataSurf->mTexture, mTexture);

  return dataSurf;
}

ID3D10ShaderResourceView*
SourceSurfaceD2DTarget::GetSRView()
{
  if (mSRView) {
    return mSRView;
  }

  HRESULT hr = Factory::GetDirect3D10Device()->CreateShaderResourceView(mTexture, nullptr, byRef(mSRView));

  if (FAILED(hr)) {
    gfxWarning() << "Failed to create ShaderResourceView. Code: " << hr;
  }

  return mSRView;
}

void
SourceSurfaceD2DTarget::DrawTargetWillChange()
{
  RefPtr<ID3D10Texture2D> oldTexture = mTexture;

  D3D10_TEXTURE2D_DESC desc;
  mTexture->GetDesc(&desc);

  // Our original texture might implement the keyed mutex flag. We shouldn't
  // need that here. We actually specifically don't want it since we don't lock
  // our texture for usage!
  desc.MiscFlags = 0;

  // Get a copy of the surface data so the content at snapshot time was saved.
  Factory::GetDirect3D10Device()->CreateTexture2D(&desc, nullptr, byRef(mTexture));
  Factory::GetDirect3D10Device()->CopyResource(mTexture, oldTexture);

  mBitmap = nullptr;

  DrawTargetD2D::mVRAMUsageSS += desc.Width * desc.Height * BytesPerPixel(mFormat);
  mOwnsCopy = true;

  // We now no longer depend on the source surface content remaining the same.
  MarkIndependent();
}

ID2D1Bitmap*
SourceSurfaceD2DTarget::GetBitmap(ID2D1RenderTarget *aRT)
{
  if (mBitmap) {
    return mBitmap;
  }

  HRESULT hr;
  D3D10_TEXTURE2D_DESC desc;
  mTexture->GetDesc(&desc);

  IntSize size(desc.Width, desc.Height);
  
  RefPtr<IDXGISurface> surf;
  hr = mTexture->QueryInterface((IDXGISurface**)byRef(surf));

  if (FAILED(hr)) {
    gfxWarning() << "Failed to query interface texture to DXGISurface. Code: " << hr;
    return nullptr;
  }

  D2D1_BITMAP_PROPERTIES props = D2D1::BitmapProperties(D2DPixelFormat(mFormat));
  hr = aRT->CreateSharedBitmap(IID_IDXGISurface, surf, &props, byRef(mBitmap));

  if (FAILED(hr)) {
    // This seems to happen for FORMAT_A8 sometimes...
    hr = aRT->CreateBitmap(D2D1::SizeU(desc.Width, desc.Height),
                           D2D1::BitmapProperties(D2DPixelFormat(mFormat)),
                           byRef(mBitmap));

    if (FAILED(hr)) {
      gfxWarning() << "Failed in CreateBitmap. Code: " << hr;
      return nullptr;
    }

    RefPtr<ID2D1RenderTarget> rt;

    if (mDrawTarget) {
      rt = mDrawTarget->mRT;
    }

    if (!rt) {
      // Okay, we already separated from our drawtarget. And we're an A8
      // surface the only way we can get to a bitmap is by creating a
      // a rendertarget and from there copying to a bitmap! Terrible!
      RefPtr<IDXGISurface> surface;

      hr = mTexture->QueryInterface((IDXGISurface**)byRef(surface));

      if (FAILED(hr)) {
        gfxWarning() << "Failed to QI texture to surface.";
        return nullptr;
      }

      D2D1_RENDER_TARGET_PROPERTIES props =
        D2D1::RenderTargetProperties(D2D1_RENDER_TARGET_TYPE_DEFAULT, D2DPixelFormat(mFormat));
      hr = DrawTargetD2D::factory()->CreateDxgiSurfaceRenderTarget(surface, props, byRef(rt));

      if (FAILED(hr)) {
        gfxWarning() << "Failed to create D2D render target for texture.";
        return nullptr;
      }
    }

    mBitmap->CopyFromRenderTarget(nullptr, rt, nullptr);
    return mBitmap;
  }

  return mBitmap;
}

void
SourceSurfaceD2DTarget::MarkIndependent()
{
  if (mDrawTarget) {
    MOZ_ASSERT(mDrawTarget->mSnapshot == this);
    mDrawTarget->mSnapshot = nullptr;
    mDrawTarget = nullptr;
  }
}

DataSourceSurfaceD2DTarget::DataSourceSurfaceD2DTarget()
  : mFormat(FORMAT_B8G8R8A8)
  , mMapped(false)
{
}

DataSourceSurfaceD2DTarget::~DataSourceSurfaceD2DTarget()
{
  if (mMapped) {
    mTexture->Unmap(0);
  }
}

IntSize
DataSourceSurfaceD2DTarget::GetSize() const
{
  D3D10_TEXTURE2D_DESC desc;
  mTexture->GetDesc(&desc);

  return IntSize(desc.Width, desc.Height);
}

SurfaceFormat
DataSourceSurfaceD2DTarget::GetFormat() const
{
  return mFormat;
}

uint8_t*
DataSourceSurfaceD2DTarget::GetData()
{
  EnsureMapped();

  return (unsigned char*)mMap.pData;
}

int32_t
DataSourceSurfaceD2DTarget::Stride()
{
  EnsureMapped();
  return mMap.RowPitch;
}

void
DataSourceSurfaceD2DTarget::EnsureMapped()
{
  if (!mMapped) {
    HRESULT hr = mTexture->Map(0, D3D10_MAP_READ, 0, &mMap);
    if (FAILED(hr)) {
      gfxWarning() << "Failed to map texture to memory. Code: " << hr;
      return;
    }
    mMapped = true;
  }
}

}
}