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gecko/gfx/layers/d3d11/CompositorD3D11.cpp
Nicholas Cameron 117fcc1062 Bug 899435. Part 4 - smooth resizing with OMTC. r=roc
2013-08-09 11:32:26 +12:00

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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 "CompositorD3D11.h"
#include "TextureD3D11.h"
#include "CompositorD3D11Shaders.h"
#include "gfxWindowsPlatform.h"
#include "nsIWidget.h"
#include "mozilla/layers/ImageHost.h"
#include "mozilla/layers/ContentHost.h"
#include "mozilla/layers/Effects.h"
#include "nsWindowsHelpers.h"
#ifdef MOZ_METRO
#include <DXGI1_2.h>
#endif
namespace mozilla {
using namespace gfx;
namespace layers {
struct Vertex
{
float position[2];
};
// {1E4D7BEB-D8EC-4A0B-BF0A-63E6DE129425}
static const GUID sDeviceAttachmentsD3D11 =
{ 0x1e4d7beb, 0xd8ec, 0x4a0b, { 0xbf, 0xa, 0x63, 0xe6, 0xde, 0x12, 0x94, 0x25 } };
// {88041664-C835-4AA8-ACB8-7EC832357ED8}
static const GUID sLayerManagerCount =
{ 0x88041664, 0xc835, 0x4aa8, { 0xac, 0xb8, 0x7e, 0xc8, 0x32, 0x35, 0x7e, 0xd8 } };
const FLOAT sBlendFactor[] = { 0, 0, 0, 0 };
struct DeviceAttachmentsD3D11
{
RefPtr<ID3D11InputLayout> mInputLayout;
RefPtr<ID3D11Buffer> mVertexBuffer;
RefPtr<ID3D11VertexShader> mVSQuadShader[3];
RefPtr<ID3D11PixelShader> mSolidColorShader[2];
RefPtr<ID3D11PixelShader> mRGBAShader[3];
RefPtr<ID3D11PixelShader> mRGBShader[2];
RefPtr<ID3D11PixelShader> mYCbCrShader[2];
RefPtr<ID3D11PixelShader> mComponentAlphaShader[2];
RefPtr<ID3D11Buffer> mPSConstantBuffer;
RefPtr<ID3D11Buffer> mVSConstantBuffer;
RefPtr<ID3D11RasterizerState> mRasterizerState;
RefPtr<ID3D11SamplerState> mLinearSamplerState;
RefPtr<ID3D11SamplerState> mPointSamplerState;
RefPtr<ID3D11BlendState> mPremulBlendState;
RefPtr<ID3D11BlendState> mNonPremulBlendState;
RefPtr<ID3D11BlendState> mComponentBlendState;
};
CompositorD3D11::CompositorD3D11(nsIWidget* aWidget)
: mWidget(aWidget)
, mAttachments(nullptr)
{
sBackend = LAYERS_D3D11;
}
CompositorD3D11::~CompositorD3D11()
{
if (mDevice) {
int referenceCount = 0;
UINT size = sizeof(referenceCount);
HRESULT hr = mDevice->GetPrivateData(sLayerManagerCount, &size, &referenceCount);
NS_ASSERTION(SUCCEEDED(hr), "Reference count not found on device.");
referenceCount--;
mDevice->SetPrivateData(sLayerManagerCount,
sizeof(referenceCount),
&referenceCount);
if (!referenceCount) {
DeviceAttachmentsD3D11 *attachments;
size = sizeof(attachments);
mDevice->GetPrivateData(sDeviceAttachmentsD3D11, &size, &attachments);
// No LayerManagers left for this device. Clear out interfaces stored
// which hold a reference to the device.
mDevice->SetPrivateData(sDeviceAttachmentsD3D11, 0, nullptr);
delete attachments;
}
}
}
bool
CompositorD3D11::Initialize()
{
HRESULT hr;
mDevice = gfxWindowsPlatform::GetPlatform()->GetD3D11Device();
if (!mDevice) {
return false;
}
mDevice->GetImmediateContext(byRef(mContext));
if (!mContext) {
return false;
}
memset(&mVSConstants, 0, sizeof(VertexShaderConstants));
int referenceCount = 0;
UINT size = sizeof(referenceCount);
// If this isn't there yet it'll fail, count will remain 0, which is correct.
mDevice->GetPrivateData(sLayerManagerCount, &size, &referenceCount);
referenceCount++;
mDevice->SetPrivateData(sLayerManagerCount,
sizeof(referenceCount),
&referenceCount);
size = sizeof(DeviceAttachmentsD3D11*);
if (FAILED(mDevice->GetPrivateData(sDeviceAttachmentsD3D11,
&size,
&mAttachments))) {
mAttachments = new DeviceAttachmentsD3D11;
mDevice->SetPrivateData(sDeviceAttachmentsD3D11,
sizeof(mAttachments),
&mAttachments);
D3D11_INPUT_ELEMENT_DESC layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
hr = mDevice->CreateInputLayout(layout,
sizeof(layout) / sizeof(D3D11_INPUT_ELEMENT_DESC),
LayerQuadVS,
sizeof(LayerQuadVS),
byRef(mAttachments->mInputLayout));
if (FAILED(hr)) {
return false;
}
Vertex vertices[] = { {0.0, 0.0}, {1.0, 0.0}, {0.0, 1.0}, {1.0, 1.0} };
CD3D11_BUFFER_DESC bufferDesc(sizeof(vertices), D3D11_BIND_VERTEX_BUFFER);
D3D11_SUBRESOURCE_DATA data;
data.pSysMem = (void*)vertices;
hr = mDevice->CreateBuffer(&bufferDesc, &data, byRef(mAttachments->mVertexBuffer));
if (FAILED(hr)) {
return false;
}
if (!CreateShaders()) {
return false;
}
CD3D11_BUFFER_DESC cBufferDesc(sizeof(VertexShaderConstants),
D3D11_BIND_CONSTANT_BUFFER,
D3D11_USAGE_DYNAMIC,
D3D11_CPU_ACCESS_WRITE);
hr = mDevice->CreateBuffer(&cBufferDesc, nullptr, byRef(mAttachments->mVSConstantBuffer));
if (FAILED(hr)) {
return false;
}
cBufferDesc.ByteWidth = sizeof(PixelShaderConstants);
hr = mDevice->CreateBuffer(&cBufferDesc, nullptr, byRef(mAttachments->mPSConstantBuffer));
if (FAILED(hr)) {
return false;
}
CD3D11_RASTERIZER_DESC rastDesc(D3D11_DEFAULT);
rastDesc.CullMode = D3D11_CULL_NONE;
rastDesc.ScissorEnable = TRUE;
hr = mDevice->CreateRasterizerState(&rastDesc, byRef(mAttachments->mRasterizerState));
if (FAILED(hr)) {
return false;
}
CD3D11_SAMPLER_DESC samplerDesc(D3D11_DEFAULT);
samplerDesc.AddressU = samplerDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
hr = mDevice->CreateSamplerState(&samplerDesc, byRef(mAttachments->mLinearSamplerState));
if (FAILED(hr)) {
return false;
}
samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
hr = mDevice->CreateSamplerState(&samplerDesc, byRef(mAttachments->mPointSamplerState));
if (FAILED(hr)) {
return false;
}
CD3D11_BLEND_DESC blendDesc(D3D11_DEFAULT);
D3D11_RENDER_TARGET_BLEND_DESC rtBlendPremul = {
TRUE,
D3D11_BLEND_ONE, D3D11_BLEND_INV_SRC_ALPHA, D3D11_BLEND_OP_ADD,
D3D11_BLEND_ONE, D3D11_BLEND_INV_SRC_ALPHA, D3D11_BLEND_OP_ADD,
D3D11_COLOR_WRITE_ENABLE_ALL
};
blendDesc.RenderTarget[0] = rtBlendPremul;
hr = mDevice->CreateBlendState(&blendDesc, byRef(mAttachments->mPremulBlendState));
if (FAILED(hr)) {
return false;
}
D3D11_RENDER_TARGET_BLEND_DESC rtBlendNonPremul = {
TRUE,
D3D11_BLEND_SRC_ALPHA, D3D11_BLEND_INV_SRC_ALPHA, D3D11_BLEND_OP_ADD,
D3D11_BLEND_ONE, D3D11_BLEND_INV_SRC_ALPHA, D3D11_BLEND_OP_ADD,
D3D11_COLOR_WRITE_ENABLE_ALL
};
blendDesc.RenderTarget[0] = rtBlendNonPremul;
hr = mDevice->CreateBlendState(&blendDesc, byRef(mAttachments->mNonPremulBlendState));
if (FAILED(hr)) {
return false;
}
D3D11_RENDER_TARGET_BLEND_DESC rtBlendComponent = {
TRUE,
D3D11_BLEND_ONE,
D3D11_BLEND_INV_SRC1_COLOR,
D3D11_BLEND_OP_ADD,
D3D11_BLEND_ONE,
D3D11_BLEND_INV_SRC_ALPHA,
D3D11_BLEND_OP_ADD,
D3D11_COLOR_WRITE_ENABLE_ALL
};
blendDesc.RenderTarget[0] = rtBlendComponent;
hr = mDevice->CreateBlendState(&blendDesc, byRef(mAttachments->mComponentBlendState));
if (FAILED(hr)) {
return false;
}
}
nsRefPtr<IDXGIDevice> dxgiDevice;
nsRefPtr<IDXGIAdapter> dxgiAdapter;
mDevice->QueryInterface(dxgiDevice.StartAssignment());
dxgiDevice->GetAdapter(getter_AddRefs(dxgiAdapter));
#ifdef MOZ_METRO
if (IsRunningInWindowsMetro()) {
nsRefPtr<IDXGIFactory2> dxgiFactory;
dxgiAdapter->GetParent(IID_PPV_ARGS(dxgiFactory.StartAssignment()));
nsIntRect rect;
mWidget->GetClientBounds(rect);
DXGI_SWAP_CHAIN_DESC1 swapDesc = { 0 };
// Automatically detect the width and the height from the winrt CoreWindow
swapDesc.Width = rect.width;
swapDesc.Height = rect.height;
// This is the most common swapchain format
swapDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
swapDesc.Stereo = false;
// Don't use multi-sampling
swapDesc.SampleDesc.Count = 1;
swapDesc.SampleDesc.Quality = 0;
swapDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
// Use double buffering to enable flip
swapDesc.BufferCount = 2;
swapDesc.Scaling = DXGI_SCALING_STRETCH;
// All Metro style apps must use this SwapEffect
swapDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
swapDesc.Flags = 0;
/**
* Create a swap chain, this swap chain will contain the backbuffer for
* the window we draw to. The front buffer is the full screen front
* buffer.
*/
nsRefPtr<IDXGISwapChain1> swapChain1;
hr = dxgiFactory->CreateSwapChainForCoreWindow(
dxgiDevice, (IUnknown *)mWidget->GetNativeData(NS_NATIVE_ICOREWINDOW),
&swapDesc, nullptr, getter_AddRefs(swapChain1));
if (FAILED(hr)) {
return false;
}
mSwapChain = swapChain1;
} else
#endif
{
nsRefPtr<IDXGIFactory> dxgiFactory;
dxgiAdapter->GetParent(IID_PPV_ARGS(dxgiFactory.StartAssignment()));
DXGI_SWAP_CHAIN_DESC swapDesc;
::ZeroMemory(&swapDesc, sizeof(swapDesc));
swapDesc.BufferDesc.Width = 0;
swapDesc.BufferDesc.Height = 0;
swapDesc.BufferDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
swapDesc.BufferDesc.RefreshRate.Numerator = 60;
swapDesc.BufferDesc.RefreshRate.Denominator = 1;
swapDesc.SampleDesc.Count = 1;
swapDesc.SampleDesc.Quality = 0;
swapDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapDesc.BufferCount = 1;
swapDesc.OutputWindow = (HWND)mWidget->GetNativeData(NS_NATIVE_WINDOW);
swapDesc.Windowed = TRUE;
// We don't really need this flag, however it seems on some NVidia hardware
// smaller area windows do not present properly without this flag. This flag
// should have no negative consequences by itself. See bug 613790. This flag
// is broken on optimus devices. As a temporary solution we don't set it
// there, the only way of reliably detecting we're on optimus is looking for
// the DLL. See Bug 623807.
if (gfxWindowsPlatform::IsOptimus()) {
swapDesc.Flags = 0;
} else {
swapDesc.Flags = DXGI_SWAP_CHAIN_FLAG_GDI_COMPATIBLE;
}
/**
* Create a swap chain, this swap chain will contain the backbuffer for
* the window we draw to. The front buffer is the full screen front
* buffer.
*/
hr = dxgiFactory->CreateSwapChain(dxgiDevice, &swapDesc, byRef(mSwapChain));
if (FAILED(hr)) {
return false;
}
// We need this because we don't want DXGI to respond to Alt+Enter.
dxgiFactory->MakeWindowAssociation(swapDesc.OutputWindow,
DXGI_MWA_NO_WINDOW_CHANGES);
}
return true;
}
TextureFactoryIdentifier
CompositorD3D11::GetTextureFactoryIdentifier()
{
TextureFactoryIdentifier ident;
ident.mMaxTextureSize = GetMaxTextureSize();
ident.mParentProcessId = XRE_GetProcessType();
ident.mParentBackend = LAYERS_D3D11;
return ident;
}
bool
CompositorD3D11::CanUseCanvasLayerForSize(const gfxIntSize& aSize)
{
int32_t maxTextureSize = GetMaxTextureSize();
if (aSize.width > maxTextureSize || aSize.height > maxTextureSize) {
return false;
}
return true;
}
int32_t
CompositorD3D11::GetMaxTextureSize() const
{
return GetMaxTextureSizeForFeatureLevel(mFeatureLevel);
}
TemporaryRef<CompositingRenderTarget>
CompositorD3D11::CreateRenderTarget(const gfx::IntRect& aRect,
SurfaceInitMode aInit)
{
CD3D11_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM, aRect.width, aRect.height, 1, 1,
D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
RefPtr<ID3D11Texture2D> texture;
mDevice->CreateTexture2D(&desc, nullptr, byRef(texture));
RefPtr<CompositingRenderTargetD3D11> rt = new CompositingRenderTargetD3D11(texture);
rt->SetSize(IntSize(aRect.width, aRect.height));
if (aInit == INIT_MODE_CLEAR) {
FLOAT clear[] = { 0, 0, 0, 0 };
mContext->ClearRenderTargetView(rt->mRTView, clear);
}
return rt;
}
TemporaryRef<CompositingRenderTarget>
CompositorD3D11::CreateRenderTargetFromSource(const gfx::IntRect &aRect,
const CompositingRenderTarget* aSource)
{
CD3D11_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
aRect.width, aRect.height, 1, 1,
D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
RefPtr<ID3D11Texture2D> texture;
mDevice->CreateTexture2D(&desc, nullptr, byRef(texture));
if (aSource) {
const CompositingRenderTargetD3D11* sourceD3D11 =
static_cast<const CompositingRenderTargetD3D11*>(aSource);
D3D11_BOX srcBox;
srcBox.left = aRect.x;
srcBox.top = aRect.y;
srcBox.front = 0;
srcBox.right = aRect.XMost();
srcBox.bottom = aRect.YMost();
srcBox.back = 0;
const IntSize& srcSize = sourceD3D11->GetSize();
if (srcBox.right <= srcSize.width &&
srcBox.bottom <= srcSize.height) {
mContext->CopySubresourceRegion(texture, 0,
0, 0, 0,
sourceD3D11->GetD3D11Texture(), 0,
&srcBox);
} else {
NS_WARNING("Could not copy render target - source rect out of bounds");
}
}
RefPtr<CompositingRenderTargetD3D11> rt =
new CompositingRenderTargetD3D11(texture);
rt->SetSize(IntSize(aRect.width, aRect.height));
return rt;
}
void
CompositorD3D11::SetRenderTarget(CompositingRenderTarget* aRenderTarget)
{
MOZ_ASSERT(aRenderTarget);
CompositingRenderTargetD3D11* newRT =
static_cast<CompositingRenderTargetD3D11*>(aRenderTarget);
ID3D11RenderTargetView* view = newRT->mRTView;
mCurrentRT = newRT;
mContext->OMSetRenderTargets(1, &view, nullptr);
PrepareViewport(newRT->GetSize(), gfxMatrix());
}
void
CompositorD3D11::SetPSForEffect(Effect* aEffect, MaskType aMaskType)
{
switch (aEffect->mType) {
case EFFECT_SOLID_COLOR:
mContext->PSSetShader(mAttachments->mSolidColorShader[aMaskType], nullptr, 0);
return;
case EFFECT_BGRA:
case EFFECT_RENDER_TARGET:
mContext->PSSetShader(mAttachments->mRGBAShader[aMaskType], nullptr, 0);
return;
case EFFECT_BGRX:
mContext->PSSetShader(mAttachments->mRGBShader[aMaskType], nullptr, 0);
return;
case EFFECT_YCBCR:
mContext->PSSetShader(mAttachments->mYCbCrShader[aMaskType], nullptr, 0);
return;
case EFFECT_COMPONENT_ALPHA:
mContext->PSSetShader(mAttachments->mComponentAlphaShader[aMaskType], nullptr, 0);
return;
default:
NS_WARNING("No shader to load");
return;
}
}
void
CompositorD3D11::DrawQuad(const gfx::Rect& aRect,
const gfx::Rect& aClipRect,
const EffectChain& aEffectChain,
gfx::Float aOpacity,
const gfx::Matrix4x4& aTransform,
const gfx::Point& aOffset)
{
MOZ_ASSERT(mCurrentRT, "No render target");
memcpy(&mVSConstants.layerTransform, &aTransform._11, 64);
mVSConstants.renderTargetOffset[0] = aOffset.x;
mVSConstants.renderTargetOffset[1] = aOffset.y;
mVSConstants.layerQuad = aRect;
mPSConstants.layerOpacity[0] = aOpacity;
bool restoreBlendMode = false;
MaskType maskType = MaskNone;
if (aEffectChain.mSecondaryEffects[EFFECT_MASK]) {
if (aTransform.Is2D()) {
maskType = Mask2d;
} else {
MOZ_ASSERT(aEffectChain.mPrimaryEffect->mType == EFFECT_BGRA);
maskType = Mask3d;
}
EffectMask* maskEffect =
static_cast<EffectMask*>(aEffectChain.mSecondaryEffects[EFFECT_MASK].get());
TextureSourceD3D11* source = maskEffect->mMaskTexture->AsSourceD3D11();
RefPtr<ID3D11ShaderResourceView> view;
mDevice->CreateShaderResourceView(source->GetD3D11Texture(), nullptr, byRef(view));
ID3D11ShaderResourceView* srView = view;
mContext->PSSetShaderResources(3, 1, &srView);
const gfx::Matrix4x4& maskTransform = maskEffect->mMaskTransform;
NS_ASSERTION(maskTransform.Is2D(), "How did we end up with a 3D transform here?!");
Rect bounds = Rect(Point(), Size(maskEffect->mSize));
mVSConstants.maskQuad = maskTransform.As2D().TransformBounds(bounds);
}
D3D11_RECT scissor;
scissor.left = aClipRect.x;
scissor.right = aClipRect.XMost();
scissor.top = aClipRect.y;
scissor.bottom = aClipRect.YMost();
mContext->RSSetScissorRects(1, &scissor);
mContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
mContext->VSSetShader(mAttachments->mVSQuadShader[maskType], nullptr, 0);
SetPSForEffect(aEffectChain.mPrimaryEffect, maskType);
switch (aEffectChain.mPrimaryEffect->mType) {
case EFFECT_SOLID_COLOR: {
Color color =
static_cast<EffectSolidColor*>(aEffectChain.mPrimaryEffect.get())->mColor;
mPSConstants.layerColor[0] = color.r * color.a * aOpacity;
mPSConstants.layerColor[1] = color.g * color.a * aOpacity;
mPSConstants.layerColor[2] = color.b * color.a * aOpacity;
mPSConstants.layerColor[3] = color.a * aOpacity;
}
break;
case EFFECT_BGRX:
case EFFECT_BGRA:
case EFFECT_RENDER_TARGET:
{
TexturedEffect* texturedEffect =
static_cast<TexturedEffect*>(aEffectChain.mPrimaryEffect.get());
mVSConstants.textureCoords = texturedEffect->mTextureCoords;
TextureSourceD3D11* source = texturedEffect->mTexture->AsSourceD3D11();
RefPtr<ID3D11ShaderResourceView> view;
mDevice->CreateShaderResourceView(source->GetD3D11Texture(), nullptr, byRef(view));
ID3D11ShaderResourceView* srView = view;
mContext->PSSetShaderResources(0, 1, &srView);
if (!texturedEffect->mPremultiplied) {
mContext->OMSetBlendState(mAttachments->mNonPremulBlendState, sBlendFactor, 0xFFFFFFFF);
restoreBlendMode = true;
}
SetSamplerForFilter(texturedEffect->mFilter);
}
break;
case EFFECT_YCBCR: {
EffectYCbCr* ycbcrEffect =
static_cast<EffectYCbCr*>(aEffectChain.mPrimaryEffect.get());
SetSamplerForFilter(FILTER_LINEAR);
mVSConstants.textureCoords = ycbcrEffect->mTextureCoords;
TextureSourceD3D11* source = ycbcrEffect->mTexture->AsSourceD3D11();
TextureSourceD3D11::YCbCrTextures textures = source->GetYCbCrTextures();
RefPtr<ID3D11ShaderResourceView> views[3];
mDevice->CreateShaderResourceView(textures.mY, nullptr, byRef(views[0]));
mDevice->CreateShaderResourceView(textures.mCb, nullptr, byRef(views[1]));
mDevice->CreateShaderResourceView(textures.mCr, nullptr, byRef(views[2]));
ID3D11ShaderResourceView* srViews[3] = { views[0], views[1], views[2] };
mContext->PSSetShaderResources(0, 3, srViews);
}
break;
case EFFECT_COMPONENT_ALPHA:
{
MOZ_ASSERT(gfxPlatform::ComponentAlphaEnabled());
EffectComponentAlpha* effectComponentAlpha =
static_cast<EffectComponentAlpha*>(aEffectChain.mPrimaryEffect.get());
TextureSourceD3D11* sourceOnWhite = effectComponentAlpha->mOnWhite->AsSourceD3D11();
TextureSourceD3D11* sourceOnBlack = effectComponentAlpha->mOnBlack->AsSourceD3D11();
SetSamplerForFilter(effectComponentAlpha->mFilter);
mVSConstants.textureCoords = effectComponentAlpha->mTextureCoords;
RefPtr<ID3D11ShaderResourceView> views[2];
mDevice->CreateShaderResourceView(sourceOnBlack->GetD3D11Texture(), nullptr, byRef(views[0]));
mDevice->CreateShaderResourceView(sourceOnWhite->GetD3D11Texture(), nullptr, byRef(views[1]));
ID3D11ShaderResourceView* srViews[2] = { views[0], views[1] };
mContext->PSSetShaderResources(0, 2, srViews);
mContext->OMSetBlendState(mAttachments->mComponentBlendState, sBlendFactor, 0xFFFFFFFF);
restoreBlendMode = true;
}
break;
default:
NS_WARNING("Unknown shader type");
return;
}
UpdateConstantBuffers();
mContext->Draw(4, 0);
if (restoreBlendMode) {
mContext->OMSetBlendState(mAttachments->mPremulBlendState, sBlendFactor, 0xFFFFFFFF);
}
}
void
CompositorD3D11::BeginFrame(const Rect* aClipRectIn,
const gfxMatrix& aTransform,
const Rect& aRenderBounds,
Rect* aClipRectOut,
Rect* aRenderBoundsOut)
{
UpdateRenderTarget();
// Failed to create a render target.
if (!mDefaultRT ||
mSize.width == 0 || mSize.height == 0) {
*aRenderBoundsOut = Rect();
return;
}
mContext->IASetInputLayout(mAttachments->mInputLayout);
ID3D11Buffer* buffer = mAttachments->mVertexBuffer;
UINT size = sizeof(Vertex);
UINT offset = 0;
mContext->IASetVertexBuffers(0, 1, &buffer, &size, &offset);
if (aClipRectOut) {
*aClipRectOut = Rect(0, 0, mSize.width, mSize.height);
}
if (aRenderBoundsOut) {
*aRenderBoundsOut = Rect(0, 0, mSize.width, mSize.height);
}
D3D11_RECT scissor;
if (aClipRectIn) {
scissor.left = aClipRectIn->x;
scissor.right = aClipRectIn->XMost();
scissor.top = aClipRectIn->y;
scissor.bottom = aClipRectIn->YMost();
} else {
scissor.left = scissor.top = 0;
scissor.right = mSize.width;
scissor.bottom = mSize.height;
}
mContext->RSSetScissorRects(1, &scissor);
FLOAT black[] = { 0, 0, 0, 0 };
mContext->ClearRenderTargetView(mDefaultRT->mRTView, black);
mContext->OMSetBlendState(mAttachments->mPremulBlendState, sBlendFactor, 0xFFFFFFFF);
mContext->RSSetState(mAttachments->mRasterizerState);
SetRenderTarget(mDefaultRT);
}
void
CompositorD3D11::EndFrame()
{
mContext->Flush();
nsIntSize oldSize = mSize;
EnsureSize();
if (oldSize == mSize) {
mSwapChain->Present(0, 0);
if (mTarget) {
PaintToTarget();
}
}
mCurrentRT = nullptr;
}
void
CompositorD3D11::PrepareViewport(const gfx::IntSize& aSize,
const gfxMatrix& aWorldTransform)
{
D3D11_VIEWPORT viewport;
viewport.MaxDepth = 1.0f;
viewport.MinDepth = 0;
viewport.Width = aSize.width;
viewport.Height = aSize.height;
viewport.TopLeftX = 0;
viewport.TopLeftY = 0;
mContext->RSSetViewports(1, &viewport);
gfxMatrix viewMatrix;
viewMatrix.Translate(-gfxPoint(1.0, -1.0));
viewMatrix.Scale(2.0f / float(aSize.width), 2.0f / float(aSize.height));
viewMatrix.Scale(1.0f, -1.0f);
viewMatrix = aWorldTransform * viewMatrix;
gfx3DMatrix projection = gfx3DMatrix::From2D(viewMatrix);
projection._33 = 0.0f;
memcpy(&mVSConstants.projection, &projection, sizeof(mVSConstants.projection));
}
void
CompositorD3D11::EnsureSize()
{
nsIntRect rect;
mWidget->GetClientBounds(rect);
mSize = rect.Size();
}
void
CompositorD3D11::VerifyBufferSize()
{
DXGI_SWAP_CHAIN_DESC swapDesc;
mSwapChain->GetDesc(&swapDesc);
if ((swapDesc.BufferDesc.Width == mSize.width &&
swapDesc.BufferDesc.Height == mSize.height) ||
mSize.width == 0 || mSize.height == 0) {
return;
}
mDefaultRT = nullptr;
if (gfxWindowsPlatform::IsOptimus()) {
mSwapChain->ResizeBuffers(1, mSize.width, mSize.height,
DXGI_FORMAT_B8G8R8A8_UNORM,
0);
#ifdef MOZ_METRO
} else if (IsRunningInWindowsMetro()) {
mSwapChain->ResizeBuffers(2, mSize.width, mSize.height,
DXGI_FORMAT_B8G8R8A8_UNORM,
0);
#endif
} else {
mSwapChain->ResizeBuffers(1, mSize.width, mSize.height,
DXGI_FORMAT_B8G8R8A8_UNORM,
DXGI_SWAP_CHAIN_FLAG_GDI_COMPATIBLE);
}
}
void
CompositorD3D11::UpdateRenderTarget()
{
EnsureSize();
VerifyBufferSize();
if (mDefaultRT) {
return;
}
HRESULT hr;
nsRefPtr<ID3D11Texture2D> backBuf;
hr = mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void**)backBuf.StartAssignment());
if (FAILED(hr)) {
return;
}
mDefaultRT = new CompositingRenderTargetD3D11(backBuf);
mDefaultRT->SetSize(mSize);
}
bool
CompositorD3D11::CreateShaders()
{
HRESULT hr;
hr = mDevice->CreateVertexShader(LayerQuadVS,
sizeof(LayerQuadVS),
nullptr,
byRef(mAttachments->mVSQuadShader[MaskNone]));
if (FAILED(hr)) {
return false;
}
hr = mDevice->CreateVertexShader(LayerQuadMaskVS,
sizeof(LayerQuadMaskVS),
nullptr,
byRef(mAttachments->mVSQuadShader[Mask2d]));
if (FAILED(hr)) {
return false;
}
hr = mDevice->CreateVertexShader(LayerQuadMask3DVS,
sizeof(LayerQuadMask3DVS),
nullptr,
byRef(mAttachments->mVSQuadShader[Mask3d]));
if (FAILED(hr)) {
return false;
}
#define LOAD_PIXEL_SHADER(x) hr = mDevice->CreatePixelShader(x, sizeof(x), nullptr, byRef(mAttachments->m##x[MaskNone])); \
if (FAILED(hr)) { \
return false; \
} \
hr = mDevice->CreatePixelShader(x##Mask, sizeof(x##Mask), nullptr, byRef(mAttachments->m##x[Mask2d])); \
if (FAILED(hr)) { \
return false; \
}
LOAD_PIXEL_SHADER(SolidColorShader);
LOAD_PIXEL_SHADER(RGBShader);
LOAD_PIXEL_SHADER(RGBAShader);
LOAD_PIXEL_SHADER(YCbCrShader);
LOAD_PIXEL_SHADER(ComponentAlphaShader);
#undef LOAD_PIXEL_SHADER
hr = mDevice->CreatePixelShader(RGBAShaderMask3D,
sizeof(RGBAShaderMask3D),
nullptr,
byRef(mAttachments->mRGBAShader[Mask3d]));
if (FAILED(hr)) {
return false;
}
return true;
}
void
CompositorD3D11::UpdateConstantBuffers()
{
D3D11_MAPPED_SUBRESOURCE resource;
mContext->Map(mAttachments->mVSConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &resource);
*(VertexShaderConstants*)resource.pData = mVSConstants;
mContext->Unmap(mAttachments->mVSConstantBuffer, 0);
mContext->Map(mAttachments->mPSConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &resource);
*(PixelShaderConstants*)resource.pData = mPSConstants;
mContext->Unmap(mAttachments->mPSConstantBuffer, 0);
ID3D11Buffer *buffer = mAttachments->mVSConstantBuffer;
mContext->VSSetConstantBuffers(0, 1, &buffer);
buffer = mAttachments->mPSConstantBuffer;
mContext->PSSetConstantBuffers(0, 1, &buffer);
}
void
CompositorD3D11::SetSamplerForFilter(Filter aFilter)
{
ID3D11SamplerState *sampler;
switch (aFilter) {
case FILTER_LINEAR:
sampler = mAttachments->mLinearSamplerState;
break;
case FILTER_POINT:
sampler = mAttachments->mPointSamplerState;
break;
}
mContext->PSSetSamplers(0, 1, &sampler);
}
void
CompositorD3D11::PaintToTarget()
{
nsRefPtr<ID3D11Texture2D> backBuf;
mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void**)backBuf.StartAssignment());
D3D11_TEXTURE2D_DESC bbDesc;
backBuf->GetDesc(&bbDesc);
CD3D11_TEXTURE2D_DESC softDesc(bbDesc.Format, bbDesc.Width, bbDesc.Height);
softDesc.MipLevels = 1;
softDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
softDesc.Usage = D3D11_USAGE_STAGING;
softDesc.BindFlags = 0;
nsRefPtr<ID3D11Texture2D> readTexture;
HRESULT hr = mDevice->CreateTexture2D(&softDesc, nullptr, getter_AddRefs(readTexture));
mContext->CopyResource(readTexture, backBuf);
D3D11_MAPPED_SUBRESOURCE map;
mContext->Map(readTexture, 0, D3D11_MAP_READ, 0, &map);
nsRefPtr<gfxImageSurface> tmpSurface =
new gfxImageSurface((unsigned char*)map.pData,
gfxIntSize(bbDesc.Width, bbDesc.Height),
map.RowPitch,
gfxASurface::ImageFormatARGB32);
mTarget->SetSource(tmpSurface);
mTarget->SetOperator(gfxContext::OPERATOR_SOURCE);
mTarget->Paint();
mContext->Unmap(readTexture, 0);
}
}
}
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