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comparison: gfx/layers/d3d10/CanvasLayerD3D10.cpp
gfx/layers/d3d10/CanvasLayerD3D10.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:86d135c7e89a |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "CanvasLayerD3D10.h" | |
| 7 | |
| 8 #include "../d3d9/Nv3DVUtils.h" | |
| 9 #include "gfxWindowsSurface.h" | |
| 10 #include "gfxWindowsPlatform.h" | |
| 11 #include "SurfaceStream.h" | |
| 12 #include "SharedSurfaceANGLE.h" | |
| 13 #include "SharedSurfaceGL.h" | |
| 14 #include "gfxContext.h" | |
| 15 #include "GLContext.h" | |
| 16 #include "gfxPrefs.h" | |
| 17 | |
| 18 using namespace mozilla::gl; | |
| 19 using namespace mozilla::gfx; | |
| 20 | |
| 21 namespace mozilla { | |
| 22 namespace layers { | |
| 23 | |
| 24 CanvasLayerD3D10::CanvasLayerD3D10(LayerManagerD3D10 *aManager) | |
| 25 : CanvasLayer(aManager, nullptr) | |
| 26 , LayerD3D10(aManager) | |
| 27 , mDataIsPremultiplied(false) | |
| 28 , mNeedsYFlip(false) | |
| 29 , mHasAlpha(true) | |
| 30 { | |
| 31 mImplData = static_cast<LayerD3D10*>(this); | |
| 32 } | |
| 33 | |
| 34 CanvasLayerD3D10::~CanvasLayerD3D10() | |
| 35 { | |
| 36 } | |
| 37 | |
| 38 void | |
| 39 CanvasLayerD3D10::Initialize(const Data& aData) | |
| 40 { | |
| 41 NS_ASSERTION(mSurface == nullptr, "BasicCanvasLayer::Initialize called twice!"); | |
| 42 | |
| 43 if (aData.mGLContext) { | |
| 44 mGLContext = aData.mGLContext; | |
| 45 NS_ASSERTION(mGLContext->IsOffscreen(), "Canvas GLContext must be offscreen."); | |
| 46 mDataIsPremultiplied = aData.mIsGLAlphaPremult; | |
| 47 mNeedsYFlip = true; | |
| 48 | |
| 49 GLScreenBuffer* screen = mGLContext->Screen(); | |
| 50 SurfaceStreamType streamType = | |
| 51 SurfaceStream::ChooseGLStreamType(SurfaceStream::MainThread, | |
| 52 screen->PreserveBuffer()); | |
| 53 | |
| 54 SurfaceFactory_GL* factory = nullptr; | |
| 55 if (!gfxPrefs::WebGLForceLayersReadback()) { | |
| 56 if (mGLContext->IsANGLE()) { | |
| 57 factory = SurfaceFactory_ANGLEShareHandle::Create(mGLContext, | |
| 58 device(), | |
| 59 screen->Caps()); | |
| 60 } | |
| 61 } | |
| 62 | |
| 63 if (factory) { | |
| 64 screen->Morph(factory, streamType); | |
| 65 } | |
| 66 } else if (aData.mDrawTarget) { | |
| 67 mDrawTarget = aData.mDrawTarget; | |
| 68 mNeedsYFlip = false; | |
| 69 mDataIsPremultiplied = true; | |
| 70 void *texture = mDrawTarget->GetNativeSurface(NativeSurfaceType::D3D10_TEXTURE); | |
| 71 | |
| 72 if (texture) { | |
| 73 mTexture = static_cast<ID3D10Texture2D*>(texture); | |
| 74 | |
| 75 NS_ASSERTION(!aData.mGLContext, | |
| 76 "CanvasLayer can't have both DrawTarget and WebGLContext/Surface"); | |
| 77 | |
| 78 mBounds.SetRect(0, 0, aData.mSize.width, aData.mSize.height); | |
| 79 device()->CreateShaderResourceView(mTexture, nullptr, getter_AddRefs(mSRView)); | |
| 80 return; | |
| 81 } | |
| 82 | |
| 83 // XXX we should store mDrawTarget and use it directly in UpdateSurface, | |
| 84 // bypassing Thebes | |
| 85 mSurface = mDrawTarget->Snapshot(); | |
| 86 } else { | |
| 87 NS_ERROR("CanvasLayer created without mSurface, mDrawTarget or mGLContext?"); | |
| 88 } | |
| 89 | |
| 90 mBounds.SetRect(0, 0, aData.mSize.width, aData.mSize.height); | |
| 91 mIsD2DTexture = false; | |
| 92 | |
| 93 // Create a texture in case we need to readback. | |
| 94 CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM, mBounds.width, mBounds.height, 1, 1); | |
| 95 desc.Usage = D3D10_USAGE_DYNAMIC; | |
| 96 desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE; | |
| 97 | |
| 98 HRESULT hr = device()->CreateTexture2D(&desc, nullptr, getter_AddRefs(mTexture)); | |
| 99 if (FAILED(hr)) { | |
| 100 NS_WARNING("Failed to create texture for CanvasLayer!"); | |
| 101 return; | |
| 102 } | |
| 103 | |
| 104 device()->CreateShaderResourceView(mTexture, nullptr, getter_AddRefs(mUploadSRView)); | |
| 105 } | |
| 106 | |
| 107 void | |
| 108 CanvasLayerD3D10::UpdateSurface() | |
| 109 { | |
| 110 if (!IsDirty()) | |
| 111 return; | |
| 112 Painted(); | |
| 113 | |
| 114 if (mDrawTarget) { | |
| 115 mDrawTarget->Flush(); | |
| 116 } else if (mIsD2DTexture) { | |
| 117 return; | |
| 118 } | |
| 119 | |
| 120 if (!mTexture) { | |
| 121 return; | |
| 122 } | |
| 123 | |
| 124 if (mGLContext) { | |
| 125 SharedSurface_GL* surf = mGLContext->RequestFrame(); | |
| 126 if (!surf) { | |
| 127 return; | |
| 128 } | |
| 129 | |
| 130 switch (surf->Type()) { | |
| 131 case SharedSurfaceType::EGLSurfaceANGLE: { | |
| 132 SharedSurface_ANGLEShareHandle* shareSurf = SharedSurface_ANGLEShareHandle::Cast(surf); | |
| 133 | |
| 134 mSRView = shareSurf->GetSRV(); | |
| 135 return; | |
| 136 } | |
| 137 case SharedSurfaceType::Basic: { | |
| 138 SharedSurface_Basic* shareSurf = SharedSurface_Basic::Cast(surf); | |
| 139 // WebGL reads entire surface. | |
| 140 D3D10_MAPPED_TEXTURE2D map; | |
| 141 | |
| 142 HRESULT hr = mTexture->Map(0, D3D10_MAP_WRITE_DISCARD, 0, &map); | |
| 143 | |
| 144 if (FAILED(hr)) { | |
| 145 NS_WARNING("Failed to map CanvasLayer texture."); | |
| 146 return; | |
| 147 } | |
| 148 | |
| 149 DataSourceSurface* frameData = shareSurf->GetData(); | |
| 150 // Scope for DrawTarget, so it's destroyed before Unmap. | |
| 151 { | |
| 152 IntSize boundsSize(mBounds.width, mBounds.height); | |
| 153 RefPtr<DrawTarget> mapDt = Factory::CreateDrawTargetForData(BackendType::CAIRO, | |
| 154 (uint8_t*)map.pData, | |
| 155 boundsSize, | |
| 156 map.RowPitch, | |
| 157 SurfaceFormat::B8G8R8A8); | |
| 158 | |
| 159 Rect drawRect(0, 0, frameData->GetSize().width, frameData->GetSize().height); | |
| 160 mapDt->DrawSurface(frameData, drawRect, drawRect, | |
| 161 DrawSurfaceOptions(), DrawOptions(1.0F, CompositionOp::OP_SOURCE)); | |
| 162 mapDt->Flush(); | |
| 163 } | |
| 164 | |
| 165 mTexture->Unmap(0); | |
| 166 mSRView = mUploadSRView; | |
| 167 break; | |
| 168 } | |
| 169 | |
| 170 default: | |
| 171 MOZ_CRASH("Unhandled SharedSurfaceType."); | |
| 172 } | |
| 173 } else if (mSurface) { | |
| 174 D3D10_MAPPED_TEXTURE2D map; | |
| 175 HRESULT hr = mTexture->Map(0, D3D10_MAP_WRITE_DISCARD, 0, &map); | |
| 176 | |
| 177 if (FAILED(hr)) { | |
| 178 NS_WARNING("Failed to lock CanvasLayer texture."); | |
| 179 return; | |
| 180 } | |
| 181 | |
| 182 RefPtr<DrawTarget> destTarget = | |
| 183 Factory::CreateDrawTargetForD3D10Texture(mTexture, | |
| 184 SurfaceFormat::R8G8B8A8); | |
| 185 Rect r(Point(0, 0), ToRect(mBounds).Size()); | |
| 186 destTarget->DrawSurface(mSurface, r, r, DrawSurfaceOptions(), | |
| 187 DrawOptions(1.0F, CompositionOp::OP_SOURCE)); | |
| 188 | |
| 189 mTexture->Unmap(0); | |
| 190 mSRView = mUploadSRView; | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 Layer* | |
| 195 CanvasLayerD3D10::GetLayer() | |
| 196 { | |
| 197 return this; | |
| 198 } | |
| 199 | |
| 200 void | |
| 201 CanvasLayerD3D10::RenderLayer() | |
| 202 { | |
| 203 FirePreTransactionCallback(); | |
| 204 UpdateSurface(); | |
| 205 FireDidTransactionCallback(); | |
| 206 | |
| 207 if (!mTexture) | |
| 208 return; | |
| 209 | |
| 210 nsIntRect visibleRect = mVisibleRegion.GetBounds(); | |
| 211 | |
| 212 SetEffectTransformAndOpacity(); | |
| 213 | |
| 214 uint8_t shaderFlags = 0; | |
| 215 shaderFlags |= LoadMaskTexture(); | |
| 216 shaderFlags |= mDataIsPremultiplied | |
| 217 ? SHADER_PREMUL : SHADER_NON_PREMUL | SHADER_RGBA; | |
| 218 shaderFlags |= mHasAlpha ? SHADER_RGBA : SHADER_RGB; | |
| 219 shaderFlags |= mFilter == GraphicsFilter::FILTER_NEAREST | |
| 220 ? SHADER_POINT : SHADER_LINEAR; | |
| 221 ID3D10EffectTechnique* technique = SelectShader(shaderFlags); | |
| 222 | |
| 223 if (mSRView) { | |
| 224 effect()->GetVariableByName("tRGB")->AsShaderResource()->SetResource(mSRView); | |
| 225 } | |
| 226 | |
| 227 effect()->GetVariableByName("vLayerQuad")->AsVector()->SetFloatVector( | |
| 228 ShaderConstantRectD3D10( | |
| 229 (float)mBounds.x, | |
| 230 (float)mBounds.y, | |
| 231 (float)mBounds.width, | |
| 232 (float)mBounds.height) | |
| 233 ); | |
| 234 | |
| 235 if (mNeedsYFlip) { | |
| 236 effect()->GetVariableByName("vTextureCoords")->AsVector()->SetFloatVector( | |
| 237 ShaderConstantRectD3D10( | |
| 238 0, | |
| 239 1.0f, | |
| 240 1.0f, | |
| 241 -1.0f) | |
| 242 ); | |
| 243 } | |
| 244 | |
| 245 technique->GetPassByIndex(0)->Apply(0); | |
| 246 device()->Draw(4, 0); | |
| 247 | |
| 248 if (mNeedsYFlip) { | |
| 249 effect()->GetVariableByName("vTextureCoords")->AsVector()-> | |
| 250 SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f)); | |
| 251 } | |
| 252 } | |
| 253 | |
| 254 } /* namespace layers */ | |
| 255 } /* namespace mozilla */ |
