mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
506 lines
17 KiB
C++
506 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "BasicCompositor.h"
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#include "BasicLayersImpl.h" // for FillRectWithMask
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#include "TextureHostBasic.h"
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#include "mozilla/layers/Effects.h"
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#include "mozilla/layers/YCbCrImageDataSerializer.h"
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#include "nsIWidget.h"
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#include "gfx2DGlue.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/Helpers.h"
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#include "gfxUtils.h"
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#include "YCbCrUtils.h"
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#include <algorithm>
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#include "ImageContainer.h"
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#include "gfxPrefs.h"
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#define PIXMAN_DONT_DEFINE_STDINT
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#include "pixman.h" // for pixman_f_transform, etc
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namespace mozilla {
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using namespace mozilla::gfx;
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namespace layers {
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class DataTextureSourceBasic : public DataTextureSource
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, public TextureSourceBasic
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{
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public:
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virtual TextureSourceBasic* AsSourceBasic() MOZ_OVERRIDE { return this; }
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virtual gfx::SourceSurface* GetSurface(DrawTarget* aTarget) MOZ_OVERRIDE { return mSurface; }
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SurfaceFormat GetFormat() const MOZ_OVERRIDE
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{
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return mSurface->GetFormat();
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}
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virtual IntSize GetSize() const MOZ_OVERRIDE
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{
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return mSurface->GetSize();
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}
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virtual bool Update(gfx::DataSourceSurface* aSurface,
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nsIntRegion* aDestRegion = nullptr,
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gfx::IntPoint* aSrcOffset = nullptr) MOZ_OVERRIDE
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{
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// XXX - For this to work with IncrementalContentHost we will need to support
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// the aDestRegion and aSrcOffset parameters properly;
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mSurface = aSurface;
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return true;
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}
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virtual void DeallocateDeviceData() MOZ_OVERRIDE
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{
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mSurface = nullptr;
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SetUpdateSerial(0);
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}
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public:
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RefPtr<gfx::DataSourceSurface> mSurface;
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};
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BasicCompositor::BasicCompositor(nsIWidget *aWidget)
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: mWidget(aWidget)
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{
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MOZ_COUNT_CTOR(BasicCompositor);
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SetBackend(LayersBackend::LAYERS_BASIC);
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}
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BasicCompositor::~BasicCompositor()
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{
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MOZ_COUNT_DTOR(BasicCompositor);
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}
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void BasicCompositor::Destroy()
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{
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mWidget->CleanupRemoteDrawing();
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mWidget = nullptr;
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}
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TemporaryRef<CompositingRenderTarget>
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BasicCompositor::CreateRenderTarget(const IntRect& aRect, SurfaceInitMode aInit)
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{
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RefPtr<DrawTarget> target = mDrawTarget->CreateSimilarDrawTarget(aRect.Size(), SurfaceFormat::B8G8R8A8);
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RefPtr<BasicCompositingRenderTarget> rt = new BasicCompositingRenderTarget(target, aRect);
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return rt.forget();
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}
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TemporaryRef<CompositingRenderTarget>
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BasicCompositor::CreateRenderTargetFromSource(const IntRect &aRect,
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const CompositingRenderTarget *aSource,
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const IntPoint &aSourcePoint)
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{
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RefPtr<DrawTarget> target = mDrawTarget->CreateSimilarDrawTarget(aRect.Size(), SurfaceFormat::B8G8R8A8);
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RefPtr<BasicCompositingRenderTarget> rt = new BasicCompositingRenderTarget(target, aRect);
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DrawTarget *source;
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if (aSource) {
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const BasicCompositingRenderTarget* sourceSurface =
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static_cast<const BasicCompositingRenderTarget*>(aSource);
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source = sourceSurface->mDrawTarget;
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} else {
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source = mDrawTarget;
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}
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RefPtr<SourceSurface> snapshot = source->Snapshot();
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IntRect sourceRect(aSourcePoint, aRect.Size());
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rt->mDrawTarget->CopySurface(snapshot, sourceRect, IntPoint(0, 0));
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return rt.forget();
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}
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TemporaryRef<DataTextureSource>
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BasicCompositor::CreateDataTextureSource(TextureFlags aFlags)
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{
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RefPtr<DataTextureSource> result = new DataTextureSourceBasic();
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return result.forget();
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}
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bool
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BasicCompositor::SupportsEffect(EffectTypes aEffect)
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{
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return static_cast<EffectTypes>(aEffect) != EffectTypes::YCBCR;
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}
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static void
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DrawSurfaceWithTextureCoords(DrawTarget *aDest,
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const gfx::Rect& aDestRect,
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SourceSurface *aSource,
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const gfx::Rect& aTextureCoords,
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gfx::Filter aFilter,
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float aOpacity,
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SourceSurface *aMask,
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const Matrix* aMaskTransform)
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{
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// Convert aTextureCoords into aSource's coordinate space
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gfxRect sourceRect(aTextureCoords.x * aSource->GetSize().width,
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aTextureCoords.y * aSource->GetSize().height,
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aTextureCoords.width * aSource->GetSize().width,
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aTextureCoords.height * aSource->GetSize().height);
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// Floating point error can accumulate above and we know our visible region
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// is integer-aligned, so round it out.
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sourceRect.Round();
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// Compute a transform that maps sourceRect to aDestRect.
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gfxMatrix transform =
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gfxUtils::TransformRectToRect(sourceRect,
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gfxPoint(aDestRect.x, aDestRect.y),
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gfxPoint(aDestRect.XMost(), aDestRect.y),
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gfxPoint(aDestRect.XMost(), aDestRect.YMost()));
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Matrix matrix = ToMatrix(transform);
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// Only use REPEAT if aTextureCoords is outside (0, 0, 1, 1).
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gfx::Rect unitRect(0, 0, 1, 1);
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ExtendMode mode = unitRect.Contains(aTextureCoords) ? ExtendMode::CLAMP : ExtendMode::REPEAT;
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FillRectWithMask(aDest, aDestRect, aSource, aFilter, DrawOptions(aOpacity),
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mode, aMask, aMaskTransform, &matrix);
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}
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static pixman_transform
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Matrix3DToPixman(const gfx3DMatrix& aMatrix)
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{
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pixman_f_transform transform;
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transform.m[0][0] = aMatrix._11;
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transform.m[0][1] = aMatrix._21;
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transform.m[0][2] = aMatrix._41;
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transform.m[1][0] = aMatrix._12;
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transform.m[1][1] = aMatrix._22;
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transform.m[1][2] = aMatrix._42;
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transform.m[2][0] = aMatrix._14;
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transform.m[2][1] = aMatrix._24;
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transform.m[2][2] = aMatrix._44;
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pixman_transform result;
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pixman_transform_from_pixman_f_transform(&result, &transform);
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return result;
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}
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static void
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PixmanTransform(DataSourceSurface* aDest,
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DataSourceSurface* aSource,
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const gfx3DMatrix& aTransform,
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gfxPoint aDestOffset)
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{
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IntSize destSize = aDest->GetSize();
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pixman_image_t* dest = pixman_image_create_bits(PIXMAN_a8r8g8b8,
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destSize.width,
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destSize.height,
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(uint32_t*)aDest->GetData(),
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aDest->Stride());
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IntSize srcSize = aSource->GetSize();
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pixman_image_t* src = pixman_image_create_bits(PIXMAN_a8r8g8b8,
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srcSize.width,
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srcSize.height,
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(uint32_t*)aSource->GetData(),
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aSource->Stride());
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NS_ABORT_IF_FALSE(src && dest, "Failed to create pixman images?");
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pixman_transform pixTransform = Matrix3DToPixman(aTransform);
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pixman_transform pixTransformInverted;
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// If the transform is singular then nothing would be drawn anyway, return here
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if (!pixman_transform_invert(&pixTransformInverted, &pixTransform)) {
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pixman_image_unref(dest);
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pixman_image_unref(src);
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return;
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}
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pixman_image_set_transform(src, &pixTransformInverted);
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pixman_image_composite32(PIXMAN_OP_SRC,
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src,
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nullptr,
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dest,
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aDestOffset.x,
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aDestOffset.y,
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0,
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0,
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0,
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0,
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destSize.width,
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destSize.height);
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pixman_image_unref(dest);
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pixman_image_unref(src);
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}
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static inline IntRect
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RoundOut(Rect r)
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{
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r.RoundOut();
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return IntRect(r.x, r.y, r.width, r.height);
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}
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void
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BasicCompositor::DrawQuad(const gfx::Rect& aRect,
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const gfx::Rect& aClipRect,
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const EffectChain &aEffectChain,
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gfx::Float aOpacity,
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const gfx::Matrix4x4 &aTransform)
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{
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RefPtr<DrawTarget> buffer = mRenderTarget->mDrawTarget;
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// For 2D drawing, |dest| and |buffer| are the same surface. For 3D drawing,
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// |dest| is a temporary surface.
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RefPtr<DrawTarget> dest = buffer;
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buffer->PushClipRect(aClipRect);
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AutoSaveTransform autoSaveTransform(dest);
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Matrix newTransform;
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Rect transformBounds;
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gfx3DMatrix new3DTransform;
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IntPoint offset = mRenderTarget->GetOrigin();
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if (aTransform.Is2D()) {
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newTransform = aTransform.As2D();
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} else {
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// Create a temporary surface for the transform.
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dest = gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(RoundOut(aRect).Size(), SurfaceFormat::B8G8R8A8);
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if (!dest) {
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return;
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}
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// Get the bounds post-transform.
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To3DMatrix(aTransform, new3DTransform);
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gfxRect bounds = new3DTransform.TransformBounds(ThebesRect(aRect));
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bounds.IntersectRect(bounds, gfxRect(offset.x, offset.y, buffer->GetSize().width, buffer->GetSize().height));
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transformBounds = ToRect(bounds);
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transformBounds.RoundOut();
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// Propagate the coordinate offset to our 2D draw target.
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newTransform.Translate(transformBounds.x, transformBounds.y);
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// When we apply the 3D transformation, we do it against a temporary
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// surface, so undo the coordinate offset.
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new3DTransform = new3DTransform * gfx3DMatrix::Translation(-transformBounds.x, -transformBounds.y, 0);
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transformBounds.MoveTo(0, 0);
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}
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newTransform.PostTranslate(-offset.x, -offset.y);
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buffer->SetTransform(newTransform);
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RefPtr<SourceSurface> sourceMask;
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Matrix maskTransform;
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if (aEffectChain.mSecondaryEffects[EffectTypes::MASK]) {
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EffectMask *effectMask = static_cast<EffectMask*>(aEffectChain.mSecondaryEffects[EffectTypes::MASK].get());
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sourceMask = effectMask->mMaskTexture->AsSourceBasic()->GetSurface(dest);
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MOZ_ASSERT(effectMask->mMaskTransform.Is2D(), "How did we end up with a 3D transform here?!");
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MOZ_ASSERT(!effectMask->mIs3D);
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maskTransform = effectMask->mMaskTransform.As2D();
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maskTransform.Translate(-offset.x, -offset.y);
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}
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switch (aEffectChain.mPrimaryEffect->mType) {
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case EffectTypes::SOLID_COLOR: {
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EffectSolidColor* effectSolidColor =
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static_cast<EffectSolidColor*>(aEffectChain.mPrimaryEffect.get());
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FillRectWithMask(dest, aRect, effectSolidColor->mColor,
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DrawOptions(aOpacity), sourceMask, &maskTransform);
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break;
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}
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case EffectTypes::RGB: {
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TexturedEffect* texturedEffect =
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static_cast<TexturedEffect*>(aEffectChain.mPrimaryEffect.get());
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TextureSourceBasic* source = texturedEffect->mTexture->AsSourceBasic();
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DrawSurfaceWithTextureCoords(dest, aRect,
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source->GetSurface(dest),
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texturedEffect->mTextureCoords,
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texturedEffect->mFilter,
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aOpacity, sourceMask, &maskTransform);
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break;
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}
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case EffectTypes::YCBCR: {
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NS_RUNTIMEABORT("Can't (easily) support component alpha with BasicCompositor!");
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break;
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}
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case EffectTypes::RENDER_TARGET: {
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EffectRenderTarget* effectRenderTarget =
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static_cast<EffectRenderTarget*>(aEffectChain.mPrimaryEffect.get());
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RefPtr<BasicCompositingRenderTarget> surface
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= static_cast<BasicCompositingRenderTarget*>(effectRenderTarget->mRenderTarget.get());
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RefPtr<SourceSurface> sourceSurf = surface->mDrawTarget->Snapshot();
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DrawSurfaceWithTextureCoords(dest, aRect,
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sourceSurf,
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effectRenderTarget->mTextureCoords,
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effectRenderTarget->mFilter,
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aOpacity, sourceMask, &maskTransform);
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break;
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}
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case EffectTypes::COMPONENT_ALPHA: {
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NS_RUNTIMEABORT("Can't (easily) support component alpha with BasicCompositor!");
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break;
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}
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default: {
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NS_RUNTIMEABORT("Invalid effect type!");
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break;
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}
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}
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if (!aTransform.Is2D()) {
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dest->Flush();
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RefPtr<SourceSurface> snapshot = dest->Snapshot();
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RefPtr<DataSourceSurface> source = snapshot->GetDataSurface();
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RefPtr<DataSourceSurface> temp =
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Factory::CreateDataSourceSurface(RoundOut(transformBounds).Size(), SurfaceFormat::B8G8R8A8);
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if (!temp) {
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return;
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}
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PixmanTransform(temp, source, new3DTransform, gfxPoint(0, 0));
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buffer->DrawSurface(temp, transformBounds, transformBounds);
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}
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buffer->PopClip();
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}
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void
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BasicCompositor::ClearRect(const gfx::Rect& aRect)
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{
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mRenderTarget->mDrawTarget->ClearRect(aRect);
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}
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void
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BasicCompositor::BeginFrame(const nsIntRegion& aInvalidRegion,
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const gfx::Rect *aClipRectIn,
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const gfx::Matrix& aTransform,
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const gfx::Rect& aRenderBounds,
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gfx::Rect *aClipRectOut /* = nullptr */,
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gfx::Rect *aRenderBoundsOut /* = nullptr */)
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{
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nsIntRect intRect;
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mWidget->GetClientBounds(intRect);
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mWidgetSize = gfx::ToIntSize(intRect.Size());
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// The result of GetClientBounds is shifted over by the size of the window
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// manager styling. We want to ignore that.
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intRect.MoveTo(0, 0);
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Rect rect = Rect(0, 0, intRect.width, intRect.height);
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// Sometimes the invalid region is larger than we want to draw.
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nsIntRegion invalidRegionSafe;
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invalidRegionSafe.And(aInvalidRegion, intRect);
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nsIntRect invalidRect = invalidRegionSafe.GetBounds();
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mInvalidRect = IntRect(invalidRect.x, invalidRect.y, invalidRect.width, invalidRect.height);
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mInvalidRegion = invalidRegionSafe;
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if (aRenderBoundsOut) {
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*aRenderBoundsOut = Rect();
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}
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if (mInvalidRect.width <= 0 || mInvalidRect.height <= 0) {
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return;
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}
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if (mTarget) {
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// If we have a copy target, then we don't have a widget-provided mDrawTarget (currently). Create a dummy
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// placeholder so that CreateRenderTarget() works.
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mDrawTarget = gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(IntSize(1,1), SurfaceFormat::B8G8R8A8);
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} else {
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mDrawTarget = mWidget->StartRemoteDrawing();
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}
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if (!mDrawTarget) {
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return;
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}
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// Setup an intermediate render target to buffer all compositing. We will
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// copy this into mDrawTarget (the widget), and/or mTarget in EndFrame()
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RefPtr<CompositingRenderTarget> target = CreateRenderTarget(mInvalidRect, INIT_MODE_CLEAR);
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SetRenderTarget(target);
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// We only allocate a surface sized to the invalidated region, so we need to
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// translate future coordinates.
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Matrix transform;
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transform.Translate(-invalidRect.x, -invalidRect.y);
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mRenderTarget->mDrawTarget->SetTransform(transform);
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gfxUtils::ClipToRegion(mRenderTarget->mDrawTarget, invalidRegionSafe);
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if (aRenderBoundsOut) {
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*aRenderBoundsOut = rect;
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}
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if (aClipRectIn) {
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mRenderTarget->mDrawTarget->PushClipRect(*aClipRectIn);
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} else {
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mRenderTarget->mDrawTarget->PushClipRect(rect);
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if (aClipRectOut) {
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*aClipRectOut = rect;
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}
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}
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}
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void
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BasicCompositor::EndFrame()
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{
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// Pop aClipRectIn/bounds rect
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mRenderTarget->mDrawTarget->PopClip();
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if (gfxPrefs::WidgetUpdateFlashing()) {
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float r = float(rand()) / RAND_MAX;
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float g = float(rand()) / RAND_MAX;
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float b = float(rand()) / RAND_MAX;
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// We're still clipped to mInvalidRegion, so just fill the bounds.
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mRenderTarget->mDrawTarget->FillRect(ToRect(mInvalidRegion.GetBounds()),
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ColorPattern(Color(r, g, b, 0.2f)));
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}
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// Pop aInvalidregion
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mRenderTarget->mDrawTarget->PopClip();
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// Note: Most platforms require us to buffer drawing to the widget surface.
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// That's why we don't draw to mDrawTarget directly.
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RefPtr<SourceSurface> source = mRenderTarget->mDrawTarget->Snapshot();
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RefPtr<DrawTarget> dest(mTarget ? mTarget : mDrawTarget);
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nsIntPoint offset = mTarget ? mTargetBounds.TopLeft() : nsIntPoint();
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// The source DrawTarget is clipped to the invalidation region, so we have
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// to copy the individual rectangles in the region or else we'll draw blank
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// pixels.
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nsIntRegionRectIterator iter(mInvalidRegion);
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for (const nsIntRect *r = iter.Next(); r; r = iter.Next()) {
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dest->CopySurface(source,
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IntRect(r->x - mInvalidRect.x, r->y - mInvalidRect.y, r->width, r->height),
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IntPoint(r->x - offset.x, r->y - offset.y));
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}
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if (!mTarget) {
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mWidget->EndRemoteDrawing();
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}
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mDrawTarget = nullptr;
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mRenderTarget = nullptr;
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}
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void
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BasicCompositor::AbortFrame()
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{
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mRenderTarget->mDrawTarget->PopClip();
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mRenderTarget->mDrawTarget->PopClip();
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mDrawTarget = nullptr;
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mRenderTarget = nullptr;
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}
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}
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}
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