зеркало из https://github.com/mozilla/gecko-dev.git
3545 строки
101 KiB
C++
3545 строки
101 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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#define _USE_MATH_DEFINES
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#include <cmath>
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#include "FilterNodeSoftware.h"
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#include "2D.h"
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#include "Tools.h"
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#include "Blur.h"
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#include <map>
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#include "FilterProcessing.h"
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#include "mozilla/PodOperations.h"
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#include "mozilla/DebugOnly.h"
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// #define DEBUG_DUMP_SURFACES
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#ifdef DEBUG_DUMP_SURFACES
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#include "gfxImageSurface.h"
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namespace mozilla {
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namespace gfx {
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static void
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DumpAsPNG(SourceSurface* aSurface)
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{
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RefPtr<DataSourceSurface> dataSource = aSurface->GetDataSurface();
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IntSize size = dataSource->GetSize();
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nsRefPtr<gfxImageSurface> imageSurface =
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new gfxImageSurface(dataSource->GetData(), gfxIntSize(size.width, size.height),
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dataSource->Stride(),
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aSurface->GetFormat() == SurfaceFormat::A8 ? gfxImageFormat::A8 : gfxImageFormat::ARGB32);
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imageSurface->PrintAsDataURL();
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}
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} // namespace gfx
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} // namespace mozilla
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#endif
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namespace mozilla {
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namespace gfx {
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namespace {
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/**
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* This class provides a way to get a pow() results in constant-time. It works
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* by caching 256 values for bases between 0 and 1 and a fixed exponent.
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**/
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class PowCache
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{
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public:
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PowCache()
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{
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CacheForExponent(0.0f);
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}
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void CacheForExponent(Float aExponent)
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{
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mExponent = aExponent;
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int numPreSquares = 0;
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while (numPreSquares < 5 && mExponent > (1 << (numPreSquares + 2))) {
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numPreSquares++;
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}
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mNumPowTablePreSquares = numPreSquares;
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for (size_t i = 0; i < sCacheSize; i++) {
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// sCacheSize is chosen in such a way that a takes values
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// from 0.0 to 1.0 inclusive.
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Float a = i / Float(1 << sCacheIndexPrecisionBits);
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MOZ_ASSERT(0.0f <= a && a <= 1.0f, "We only want to cache for bases between 0 and 1.");
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for (int j = 0; j < mNumPowTablePreSquares; j++) {
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a = sqrt(a);
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}
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uint32_t cachedInt = pow(a, mExponent) * (1 << sOutputIntPrecisionBits);
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MOZ_ASSERT(cachedInt < (1 << (sizeof(mPowTable[i]) * 8)), "mPowCache integer type too small");
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mPowTable[i] = cachedInt;
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}
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}
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uint16_t Pow(uint16_t aBase)
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{
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// Results should be similar to what the following code would produce:
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// Float x = Float(aBase) / (1 << sInputIntPrecisionBits);
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// return uint16_t(pow(x, mExponent) * (1 << sOutputIntPrecisionBits));
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MOZ_ASSERT(aBase <= (1 << sInputIntPrecisionBits), "aBase needs to be between 0 and 1!");
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uint32_t a = aBase;
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for (int j = 0; j < mNumPowTablePreSquares; j++) {
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a = a * a >> sInputIntPrecisionBits;
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}
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uint32_t i = a >> (sInputIntPrecisionBits - sCacheIndexPrecisionBits);
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MOZ_ASSERT(i < sCacheSize, "out-of-bounds mPowTable access");
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return mPowTable[i];
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}
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static const int sInputIntPrecisionBits = 15;
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static const int sOutputIntPrecisionBits = 15;
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static const int sCacheIndexPrecisionBits = 7;
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private:
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static const size_t sCacheSize = (1 << sCacheIndexPrecisionBits) + 1;
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Float mExponent;
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int mNumPowTablePreSquares;
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uint16_t mPowTable[sCacheSize];
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};
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class PointLightSoftware
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{
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public:
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bool SetAttribute(uint32_t aIndex, Float) { return false; }
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bool SetAttribute(uint32_t aIndex, const Point3D &);
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void Prepare() {}
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Point3D GetVectorToLight(const Point3D &aTargetPoint);
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uint32_t GetColor(uint32_t aLightColor, const Point3D &aVectorToLight);
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private:
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Point3D mPosition;
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};
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class SpotLightSoftware
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{
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public:
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SpotLightSoftware();
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bool SetAttribute(uint32_t aIndex, Float);
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bool SetAttribute(uint32_t aIndex, const Point3D &);
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void Prepare();
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Point3D GetVectorToLight(const Point3D &aTargetPoint);
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uint32_t GetColor(uint32_t aLightColor, const Point3D &aVectorToLight);
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private:
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Point3D mPosition;
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Point3D mPointsAt;
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Point3D mVectorFromFocusPointToLight;
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Float mSpecularFocus;
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Float mLimitingConeAngle;
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Float mLimitingConeCos;
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PowCache mPowCache;
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};
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class DistantLightSoftware
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{
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public:
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DistantLightSoftware();
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bool SetAttribute(uint32_t aIndex, Float);
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bool SetAttribute(uint32_t aIndex, const Point3D &) { return false; }
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void Prepare();
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Point3D GetVectorToLight(const Point3D &aTargetPoint);
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uint32_t GetColor(uint32_t aLightColor, const Point3D &aVectorToLight);
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private:
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Float mAzimuth;
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Float mElevation;
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Point3D mVectorToLight;
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};
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class DiffuseLightingSoftware
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{
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public:
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DiffuseLightingSoftware();
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bool SetAttribute(uint32_t aIndex, Float);
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void Prepare() {}
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uint32_t LightPixel(const Point3D &aNormal, const Point3D &aVectorToLight,
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uint32_t aColor);
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private:
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Float mDiffuseConstant;
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};
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class SpecularLightingSoftware
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{
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public:
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SpecularLightingSoftware();
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bool SetAttribute(uint32_t aIndex, Float);
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void Prepare();
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uint32_t LightPixel(const Point3D &aNormal, const Point3D &aVectorToLight,
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uint32_t aColor);
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private:
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Float mSpecularConstant;
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Float mSpecularExponent;
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uint32_t mSpecularConstantInt;
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PowCache mPowCache;
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};
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} // unnamed namespace
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// from xpcom/ds/nsMathUtils.h
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static int32_t
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NS_lround(double x)
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{
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return x >= 0.0 ? int32_t(x + 0.5) : int32_t(x - 0.5);
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}
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void
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ClearDataSourceSurface(DataSourceSurface *aSurface)
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{
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size_t numBytes = aSurface->GetSize().height * aSurface->Stride();
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uint8_t* data = aSurface->GetData();
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PodZero(data, numBytes);
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}
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// This check is safe against integer overflow.
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static bool
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SurfaceContainsPoint(SourceSurface* aSurface, const IntPoint& aPoint)
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{
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IntSize size = aSurface->GetSize();
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return aPoint.x >= 0 && aPoint.x < size.width &&
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aPoint.y >= 0 && aPoint.y < size.height;
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}
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static uint8_t*
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DataAtOffset(DataSourceSurface* aSurface, IntPoint aPoint)
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{
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if (!SurfaceContainsPoint(aSurface, aPoint)) {
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MOZ_CRASH("sample position needs to be inside surface!");
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}
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MOZ_ASSERT(Factory::CheckSurfaceSize(aSurface->GetSize()),
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"surface size overflows - this should have been prevented when the surface was created");
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uint8_t* data = aSurface->GetData() + aPoint.y * aSurface->Stride() +
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aPoint.x * BytesPerPixel(aSurface->GetFormat());
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if (data < aSurface->GetData()) {
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MOZ_CRASH("out-of-range data access");
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}
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return data;
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}
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static bool
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IntRectOverflows(const IntRect& aRect)
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{
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CheckedInt<int32_t> xMost = aRect.x;
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xMost += aRect.width;
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CheckedInt<int32_t> yMost = aRect.y;
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yMost += aRect.height;
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return !xMost.isValid() || !yMost.isValid();
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}
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/**
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* aSrcRect: Rect relative to the aSrc surface
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* aDestPoint: Point inside aDest surface
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*/
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static void
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CopyRect(DataSourceSurface* aSrc, DataSourceSurface* aDest,
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IntRect aSrcRect, IntPoint aDestPoint)
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{
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if (IntRectOverflows(aSrcRect) ||
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IntRectOverflows(IntRect(aDestPoint, aSrcRect.Size()))) {
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MOZ_CRASH("we should never be getting invalid rects at this point");
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}
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MOZ_ASSERT(aSrc->GetFormat() == aDest->GetFormat(), "different surface formats");
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MOZ_ASSERT(IntRect(IntPoint(), aSrc->GetSize()).Contains(aSrcRect), "source rect too big for source surface");
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MOZ_ASSERT(IntRect(IntPoint(), aDest->GetSize()).Contains(aSrcRect - aSrcRect.TopLeft() + aDestPoint), "dest surface too small");
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if (aSrcRect.IsEmpty()) {
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return;
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}
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uint8_t* sourceData = DataAtOffset(aSrc, aSrcRect.TopLeft());
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uint32_t sourceStride = aSrc->Stride();
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uint8_t* destData = DataAtOffset(aDest, aDestPoint);
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uint32_t destStride = aDest->Stride();
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if (BytesPerPixel(aSrc->GetFormat()) == 4) {
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for (int32_t y = 0; y < aSrcRect.height; y++) {
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PodCopy((int32_t*)destData, (int32_t*)sourceData, aSrcRect.width);
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sourceData += sourceStride;
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destData += destStride;
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}
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} else if (BytesPerPixel(aSrc->GetFormat()) == 1) {
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for (int32_t y = 0; y < aSrcRect.height; y++) {
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PodCopy(destData, sourceData, aSrcRect.width);
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sourceData += sourceStride;
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destData += destStride;
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}
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}
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}
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TemporaryRef<DataSourceSurface>
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CloneAligned(DataSourceSurface* aSource)
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{
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RefPtr<DataSourceSurface> copy =
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Factory::CreateDataSourceSurface(aSource->GetSize(), aSource->GetFormat());
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if (copy) {
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CopyRect(aSource, copy, IntRect(IntPoint(), aSource->GetSize()), IntPoint());
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}
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return copy;
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}
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static void
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FillRectWithPixel(DataSourceSurface *aSurface, const IntRect &aFillRect, IntPoint aPixelPos)
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{
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MOZ_ASSERT(!IntRectOverflows(aFillRect));
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MOZ_ASSERT(IntRect(IntPoint(), aSurface->GetSize()).Contains(aFillRect),
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"aFillRect needs to be completely inside the surface");
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MOZ_ASSERT(SurfaceContainsPoint(aSurface, aPixelPos),
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"aPixelPos needs to be inside the surface");
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int32_t stride = aSurface->Stride();
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uint8_t* sourcePixelData = DataAtOffset(aSurface, aPixelPos);
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uint8_t* data = DataAtOffset(aSurface, aFillRect.TopLeft());
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int bpp = BytesPerPixel(aSurface->GetFormat());
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// Fill the first row by hand.
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if (bpp == 4) {
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uint32_t sourcePixel = *(uint32_t*)sourcePixelData;
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for (int32_t x = 0; x < aFillRect.width; x++) {
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*((uint32_t*)data + x) = sourcePixel;
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}
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} else if (BytesPerPixel(aSurface->GetFormat()) == 1) {
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uint8_t sourcePixel = *sourcePixelData;
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memset(data, sourcePixel, aFillRect.width);
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}
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// Copy the first row into the other rows.
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for (int32_t y = 1; y < aFillRect.height; y++) {
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PodCopy(data + y * stride, data, aFillRect.width * bpp);
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}
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}
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static void
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FillRectWithVerticallyRepeatingHorizontalStrip(DataSourceSurface *aSurface,
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const IntRect &aFillRect,
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const IntRect &aSampleRect)
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{
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MOZ_ASSERT(!IntRectOverflows(aFillRect));
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MOZ_ASSERT(!IntRectOverflows(aSampleRect));
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MOZ_ASSERT(IntRect(IntPoint(), aSurface->GetSize()).Contains(aFillRect),
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"aFillRect needs to be completely inside the surface");
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MOZ_ASSERT(IntRect(IntPoint(), aSurface->GetSize()).Contains(aSampleRect),
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"aSampleRect needs to be completely inside the surface");
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int32_t stride = aSurface->Stride();
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uint8_t* sampleData = DataAtOffset(aSurface, aSampleRect.TopLeft());
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uint8_t* data = DataAtOffset(aSurface, aFillRect.TopLeft());
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if (BytesPerPixel(aSurface->GetFormat()) == 4) {
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for (int32_t y = 0; y < aFillRect.height; y++) {
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PodCopy((uint32_t*)data, (uint32_t*)sampleData, aFillRect.width);
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data += stride;
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}
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} else if (BytesPerPixel(aSurface->GetFormat()) == 1) {
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for (int32_t y = 0; y < aFillRect.height; y++) {
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PodCopy(data, sampleData, aFillRect.width);
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data += stride;
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}
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}
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}
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static void
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FillRectWithHorizontallyRepeatingVerticalStrip(DataSourceSurface *aSurface,
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const IntRect &aFillRect,
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const IntRect &aSampleRect)
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{
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MOZ_ASSERT(!IntRectOverflows(aFillRect));
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MOZ_ASSERT(!IntRectOverflows(aSampleRect));
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MOZ_ASSERT(IntRect(IntPoint(), aSurface->GetSize()).Contains(aFillRect),
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"aFillRect needs to be completely inside the surface");
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MOZ_ASSERT(IntRect(IntPoint(), aSurface->GetSize()).Contains(aSampleRect),
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"aSampleRect needs to be completely inside the surface");
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int32_t stride = aSurface->Stride();
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uint8_t* sampleData = DataAtOffset(aSurface, aSampleRect.TopLeft());
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uint8_t* data = DataAtOffset(aSurface, aFillRect.TopLeft());
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if (BytesPerPixel(aSurface->GetFormat()) == 4) {
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for (int32_t y = 0; y < aFillRect.height; y++) {
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int32_t sampleColor = *((uint32_t*)sampleData);
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for (int32_t x = 0; x < aFillRect.width; x++) {
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*((uint32_t*)data + x) = sampleColor;
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}
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data += stride;
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sampleData += stride;
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}
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} else if (BytesPerPixel(aSurface->GetFormat()) == 1) {
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for (int32_t y = 0; y < aFillRect.height; y++) {
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uint8_t sampleColor = *sampleData;
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memset(data, sampleColor, aFillRect.width);
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data += stride;
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sampleData += stride;
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}
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}
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}
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static void
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DuplicateEdges(DataSourceSurface* aSurface, const IntRect &aFromRect)
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{
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MOZ_ASSERT(!IntRectOverflows(aFromRect));
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MOZ_ASSERT(IntRect(IntPoint(), aSurface->GetSize()).Contains(aFromRect),
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"aFromRect needs to be completely inside the surface");
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IntSize size = aSurface->GetSize();
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IntRect fill;
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IntRect sampleRect;
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for (int32_t ix = 0; ix < 3; ix++) {
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switch (ix) {
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case 0:
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fill.x = 0;
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fill.width = aFromRect.x;
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sampleRect.x = fill.XMost();
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sampleRect.width = 1;
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break;
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case 1:
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fill.x = aFromRect.x;
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fill.width = aFromRect.width;
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sampleRect.x = fill.x;
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sampleRect.width = fill.width;
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break;
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case 2:
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fill.x = aFromRect.XMost();
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fill.width = size.width - fill.x;
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sampleRect.x = fill.x - 1;
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sampleRect.width = 1;
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break;
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}
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if (fill.width <= 0) {
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continue;
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}
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bool xIsMiddle = (ix == 1);
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for (int32_t iy = 0; iy < 3; iy++) {
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switch (iy) {
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case 0:
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fill.y = 0;
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fill.height = aFromRect.y;
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sampleRect.y = fill.YMost();
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sampleRect.height = 1;
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break;
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case 1:
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fill.y = aFromRect.y;
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fill.height = aFromRect.height;
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sampleRect.y = fill.y;
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sampleRect.height = fill.height;
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break;
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case 2:
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fill.y = aFromRect.YMost();
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fill.height = size.height - fill.y;
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sampleRect.y = fill.y - 1;
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sampleRect.height = 1;
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break;
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}
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if (fill.height <= 0) {
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continue;
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}
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bool yIsMiddle = (iy == 1);
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if (!xIsMiddle && !yIsMiddle) {
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// Corner
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FillRectWithPixel(aSurface, fill, sampleRect.TopLeft());
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}
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if (xIsMiddle && !yIsMiddle) {
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// Top middle or bottom middle
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FillRectWithVerticallyRepeatingHorizontalStrip(aSurface, fill, sampleRect);
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}
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if (!xIsMiddle && yIsMiddle) {
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// Left middle or right middle
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FillRectWithHorizontallyRepeatingVerticalStrip(aSurface, fill, sampleRect);
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}
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}
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}
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}
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static IntPoint
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TileIndex(const IntRect &aFirstTileRect, const IntPoint &aPoint)
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{
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return IntPoint(int32_t(floor(double(aPoint.x - aFirstTileRect.x) / aFirstTileRect.width)),
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int32_t(floor(double(aPoint.y - aFirstTileRect.y) / aFirstTileRect.height)));
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}
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static void
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TileSurface(DataSourceSurface* aSource, DataSourceSurface* aTarget, const IntPoint &aOffset)
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{
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IntRect sourceRect(aOffset, aSource->GetSize());
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IntRect targetRect(IntPoint(0, 0), aTarget->GetSize());
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IntPoint startIndex = TileIndex(sourceRect, targetRect.TopLeft());
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IntPoint endIndex = TileIndex(sourceRect, targetRect.BottomRight());
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for (int32_t ix = startIndex.x; ix <= endIndex.x; ix++) {
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for (int32_t iy = startIndex.y; iy <= endIndex.y; iy++) {
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IntPoint destPoint(sourceRect.x + ix * sourceRect.width,
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sourceRect.y + iy * sourceRect.height);
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IntRect destRect(destPoint, sourceRect.Size());
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destRect = destRect.Intersect(targetRect);
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IntRect srcRect = destRect - destPoint;
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CopyRect(aSource, aTarget, srcRect, destRect.TopLeft());
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}
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}
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}
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static TemporaryRef<DataSourceSurface>
|
|
GetDataSurfaceInRect(SourceSurface *aSurface,
|
|
const IntRect &aSurfaceRect,
|
|
const IntRect &aDestRect,
|
|
ConvolveMatrixEdgeMode aEdgeMode)
|
|
{
|
|
MOZ_ASSERT(aSurface ? aSurfaceRect.Size() == aSurface->GetSize() : aSurfaceRect.IsEmpty());
|
|
|
|
if (IntRectOverflows(aSurfaceRect) || IntRectOverflows(aDestRect)) {
|
|
// We can't rely on the intersection calculations below to make sense when
|
|
// XMost() or YMost() overflow. Bail out.
|
|
return nullptr;
|
|
}
|
|
|
|
IntRect sourceRect = aSurfaceRect;
|
|
|
|
if (sourceRect.IsEqualEdges(aDestRect)) {
|
|
return aSurface ? aSurface->GetDataSurface() : nullptr;
|
|
}
|
|
|
|
IntRect intersect = sourceRect.Intersect(aDestRect);
|
|
IntRect intersectInSourceSpace = intersect - sourceRect.TopLeft();
|
|
IntRect intersectInDestSpace = intersect - aDestRect.TopLeft();
|
|
SurfaceFormat format = aSurface ? aSurface->GetFormat() : SurfaceFormat(SurfaceFormat::B8G8R8A8);
|
|
|
|
RefPtr<DataSourceSurface> target =
|
|
Factory::CreateDataSourceSurface(aDestRect.Size(), format);
|
|
|
|
if (!target) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (aEdgeMode == EDGE_MODE_NONE && !aSurfaceRect.Contains(aDestRect)) {
|
|
ClearDataSourceSurface(target);
|
|
}
|
|
|
|
if (!aSurface) {
|
|
return target;
|
|
}
|
|
|
|
RefPtr<DataSourceSurface> dataSource = aSurface->GetDataSurface();
|
|
MOZ_ASSERT(dataSource);
|
|
|
|
if (aEdgeMode == EDGE_MODE_WRAP) {
|
|
TileSurface(dataSource, target, intersectInDestSpace.TopLeft());
|
|
return target;
|
|
}
|
|
|
|
CopyRect(dataSource, target, intersectInSourceSpace,
|
|
intersectInDestSpace.TopLeft());
|
|
|
|
if (aEdgeMode == EDGE_MODE_DUPLICATE) {
|
|
DuplicateEdges(target, intersectInDestSpace);
|
|
}
|
|
|
|
return target;
|
|
}
|
|
|
|
/* static */ TemporaryRef<FilterNode>
|
|
FilterNodeSoftware::Create(FilterType aType)
|
|
{
|
|
RefPtr<FilterNodeSoftware> filter;
|
|
switch (aType) {
|
|
case FilterType::BLEND:
|
|
filter = new FilterNodeBlendSoftware();
|
|
break;
|
|
case FilterType::TRANSFORM:
|
|
filter = new FilterNodeTransformSoftware();
|
|
break;
|
|
case FilterType::MORPHOLOGY:
|
|
filter = new FilterNodeMorphologySoftware();
|
|
break;
|
|
case FilterType::COLOR_MATRIX:
|
|
filter = new FilterNodeColorMatrixSoftware();
|
|
break;
|
|
case FilterType::FLOOD:
|
|
filter = new FilterNodeFloodSoftware();
|
|
break;
|
|
case FilterType::TILE:
|
|
filter = new FilterNodeTileSoftware();
|
|
break;
|
|
case FilterType::TABLE_TRANSFER:
|
|
filter = new FilterNodeTableTransferSoftware();
|
|
break;
|
|
case FilterType::DISCRETE_TRANSFER:
|
|
filter = new FilterNodeDiscreteTransferSoftware();
|
|
break;
|
|
case FilterType::LINEAR_TRANSFER:
|
|
filter = new FilterNodeLinearTransferSoftware();
|
|
break;
|
|
case FilterType::GAMMA_TRANSFER:
|
|
filter = new FilterNodeGammaTransferSoftware();
|
|
break;
|
|
case FilterType::CONVOLVE_MATRIX:
|
|
filter = new FilterNodeConvolveMatrixSoftware();
|
|
break;
|
|
case FilterType::DISPLACEMENT_MAP:
|
|
filter = new FilterNodeDisplacementMapSoftware();
|
|
break;
|
|
case FilterType::TURBULENCE:
|
|
filter = new FilterNodeTurbulenceSoftware();
|
|
break;
|
|
case FilterType::ARITHMETIC_COMBINE:
|
|
filter = new FilterNodeArithmeticCombineSoftware();
|
|
break;
|
|
case FilterType::COMPOSITE:
|
|
filter = new FilterNodeCompositeSoftware();
|
|
break;
|
|
case FilterType::GAUSSIAN_BLUR:
|
|
filter = new FilterNodeGaussianBlurSoftware();
|
|
break;
|
|
case FilterType::DIRECTIONAL_BLUR:
|
|
filter = new FilterNodeDirectionalBlurSoftware();
|
|
break;
|
|
case FilterType::CROP:
|
|
filter = new FilterNodeCropSoftware();
|
|
break;
|
|
case FilterType::PREMULTIPLY:
|
|
filter = new FilterNodePremultiplySoftware();
|
|
break;
|
|
case FilterType::UNPREMULTIPLY:
|
|
filter = new FilterNodeUnpremultiplySoftware();
|
|
break;
|
|
case FilterType::POINT_DIFFUSE:
|
|
filter = new FilterNodeLightingSoftware<PointLightSoftware, DiffuseLightingSoftware>("FilterNodeLightingSoftware<PointLight, DiffuseLighting>");
|
|
break;
|
|
case FilterType::POINT_SPECULAR:
|
|
filter = new FilterNodeLightingSoftware<PointLightSoftware, SpecularLightingSoftware>("FilterNodeLightingSoftware<PointLight, SpecularLighting>");
|
|
break;
|
|
case FilterType::SPOT_DIFFUSE:
|
|
filter = new FilterNodeLightingSoftware<SpotLightSoftware, DiffuseLightingSoftware>("FilterNodeLightingSoftware<SpotLight, DiffuseLighting>");
|
|
break;
|
|
case FilterType::SPOT_SPECULAR:
|
|
filter = new FilterNodeLightingSoftware<SpotLightSoftware, SpecularLightingSoftware>("FilterNodeLightingSoftware<SpotLight, SpecularLighting>");
|
|
break;
|
|
case FilterType::DISTANT_DIFFUSE:
|
|
filter = new FilterNodeLightingSoftware<DistantLightSoftware, DiffuseLightingSoftware>("FilterNodeLightingSoftware<DistantLight, DiffuseLighting>");
|
|
break;
|
|
case FilterType::DISTANT_SPECULAR:
|
|
filter = new FilterNodeLightingSoftware<DistantLightSoftware, SpecularLightingSoftware>("FilterNodeLightingSoftware<DistantLight, SpecularLighting>");
|
|
break;
|
|
}
|
|
return filter;
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::Draw(DrawTarget* aDrawTarget,
|
|
const Rect &aSourceRect,
|
|
const Point &aDestPoint,
|
|
const DrawOptions &aOptions)
|
|
{
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("<style>section{margin:10px;}</style><pre>\nRendering filter %s...\n", GetName());
|
|
#endif
|
|
|
|
Rect renderRect = aSourceRect;
|
|
renderRect.RoundOut();
|
|
IntRect renderIntRect;
|
|
if (!renderRect.ToIntRect(&renderIntRect)) {
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("render rect overflowed, not painting anything\n");
|
|
printf("</pre>\n");
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
IntRect outputRect = GetOutputRectInRect(renderIntRect);
|
|
if (IntRectOverflows(outputRect)) {
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("output rect overflowed, not painting anything\n");
|
|
printf("</pre>\n");
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
RefPtr<DataSourceSurface> result;
|
|
if (!outputRect.IsEmpty()) {
|
|
result = GetOutput(outputRect);
|
|
}
|
|
|
|
if (!result) {
|
|
// Null results are allowed and treated as transparent. Don't draw anything.
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("output returned null\n");
|
|
printf("</pre>\n");
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("output from %s:\n", GetName());
|
|
printf("<img src='"); DumpAsPNG(result); printf("'>\n");
|
|
printf("</pre>\n");
|
|
#endif
|
|
|
|
Point sourceToDestOffset = aDestPoint - aSourceRect.TopLeft();
|
|
Rect renderedSourceRect = Rect(outputRect).Intersect(aSourceRect);
|
|
Rect renderedDestRect = renderedSourceRect + sourceToDestOffset;
|
|
if (result->GetFormat() == SurfaceFormat::A8) {
|
|
// Interpret the result as having implicitly black color channels.
|
|
aDrawTarget->PushClipRect(renderedDestRect);
|
|
aDrawTarget->MaskSurface(ColorPattern(Color(0.0, 0.0, 0.0, 1.0)),
|
|
result,
|
|
Point(outputRect.TopLeft()) + sourceToDestOffset,
|
|
aOptions);
|
|
aDrawTarget->PopClip();
|
|
} else {
|
|
aDrawTarget->DrawSurface(result, renderedDestRect,
|
|
renderedSourceRect - Point(outputRect.TopLeft()),
|
|
DrawSurfaceOptions(), aOptions);
|
|
}
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeSoftware::GetOutput(const IntRect &aRect)
|
|
{
|
|
MOZ_ASSERT(GetOutputRectInRect(aRect).Contains(aRect));
|
|
|
|
if (IntRectOverflows(aRect)) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (!mCachedRect.Contains(aRect)) {
|
|
RequestRect(aRect);
|
|
mCachedOutput = Render(mRequestedRect);
|
|
if (!mCachedOutput) {
|
|
mCachedRect = IntRect();
|
|
mRequestedRect = IntRect();
|
|
return nullptr;
|
|
}
|
|
mCachedRect = mRequestedRect;
|
|
mRequestedRect = IntRect();
|
|
} else {
|
|
MOZ_ASSERT(mCachedOutput, "cached rect but no cached output?");
|
|
}
|
|
return GetDataSurfaceInRect(mCachedOutput, mCachedRect, aRect, EDGE_MODE_NONE);
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::RequestRect(const IntRect &aRect)
|
|
{
|
|
mRequestedRect = mRequestedRect.Union(aRect);
|
|
RequestFromInputsForRect(aRect);
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::RequestInputRect(uint32_t aInputEnumIndex, const IntRect &aRect)
|
|
{
|
|
if (IntRectOverflows(aRect)) {
|
|
return;
|
|
}
|
|
|
|
int32_t inputIndex = InputIndex(aInputEnumIndex);
|
|
if (inputIndex < 0 || (uint32_t)inputIndex >= NumberOfSetInputs()) {
|
|
MOZ_CRASH();
|
|
}
|
|
if (mInputSurfaces[inputIndex]) {
|
|
return;
|
|
}
|
|
RefPtr<FilterNodeSoftware> filter = mInputFilters[inputIndex];
|
|
MOZ_ASSERT(filter, "missing input");
|
|
filter->RequestRect(filter->GetOutputRectInRect(aRect));
|
|
}
|
|
|
|
SurfaceFormat
|
|
FilterNodeSoftware::DesiredFormat(SurfaceFormat aCurrentFormat,
|
|
FormatHint aFormatHint)
|
|
{
|
|
if (aCurrentFormat == SurfaceFormat::A8 && aFormatHint == CAN_HANDLE_A8) {
|
|
return SurfaceFormat::A8;
|
|
}
|
|
return SurfaceFormat::B8G8R8A8;
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeSoftware::GetInputDataSourceSurface(uint32_t aInputEnumIndex,
|
|
const IntRect& aRect,
|
|
FormatHint aFormatHint,
|
|
ConvolveMatrixEdgeMode aEdgeMode,
|
|
const IntRect *aTransparencyPaddedSourceRect)
|
|
{
|
|
if (IntRectOverflows(aRect)) {
|
|
return nullptr;
|
|
}
|
|
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("<section><h1>GetInputDataSourceSurface with aRect: %d, %d, %d, %d</h1>\n",
|
|
aRect.x, aRect.y, aRect.width, aRect.height);
|
|
#endif
|
|
int32_t inputIndex = InputIndex(aInputEnumIndex);
|
|
if (inputIndex < 0 || (uint32_t)inputIndex >= NumberOfSetInputs()) {
|
|
MOZ_CRASH();
|
|
return nullptr;
|
|
}
|
|
|
|
if (aRect.IsEmpty()) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<SourceSurface> surface;
|
|
IntRect surfaceRect;
|
|
|
|
if (mInputSurfaces[inputIndex]) {
|
|
// Input from input surface
|
|
surface = mInputSurfaces[inputIndex];
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("input from input surface:\n");
|
|
#endif
|
|
surfaceRect = IntRect(IntPoint(0, 0), surface->GetSize());
|
|
} else {
|
|
// Input from input filter
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("getting input from input filter %s...\n", mInputFilters[inputIndex]->GetName());
|
|
#endif
|
|
RefPtr<FilterNodeSoftware> filter = mInputFilters[inputIndex];
|
|
MOZ_ASSERT(filter, "missing input");
|
|
IntRect inputFilterOutput = filter->GetOutputRectInRect(aRect);
|
|
if (!inputFilterOutput.IsEmpty()) {
|
|
surface = filter->GetOutput(inputFilterOutput);
|
|
}
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("input from input filter %s:\n", mInputFilters[inputIndex]->GetName());
|
|
#endif
|
|
surfaceRect = inputFilterOutput;
|
|
MOZ_ASSERT(!surface || surfaceRect.Size() == surface->GetSize());
|
|
}
|
|
|
|
if (surface && surface->GetFormat() == SurfaceFormat::UNKNOWN) {
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("wrong input format</section>\n\n");
|
|
#endif
|
|
return nullptr;
|
|
}
|
|
|
|
if (!surfaceRect.IsEmpty() && !surface) {
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf(" -- no input --</section>\n\n");
|
|
#endif
|
|
return nullptr;
|
|
}
|
|
|
|
if (aTransparencyPaddedSourceRect && !aTransparencyPaddedSourceRect->IsEmpty()) {
|
|
IntRect srcRect = aTransparencyPaddedSourceRect->Intersect(aRect);
|
|
surface = GetDataSurfaceInRect(surface, surfaceRect, srcRect, EDGE_MODE_NONE);
|
|
surfaceRect = srcRect;
|
|
}
|
|
|
|
RefPtr<DataSourceSurface> result =
|
|
GetDataSurfaceInRect(surface, surfaceRect, aRect, aEdgeMode);
|
|
|
|
if (result &&
|
|
(result->Stride() != GetAlignedStride<16>(result->Stride()) ||
|
|
reinterpret_cast<uintptr_t>(result->GetData()) % 16 != 0)) {
|
|
// Align unaligned surface.
|
|
result = CloneAligned(result);
|
|
}
|
|
|
|
if (!result) {
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf(" -- no input --</section>\n\n");
|
|
#endif
|
|
return nullptr;
|
|
}
|
|
|
|
SurfaceFormat currentFormat = result->GetFormat();
|
|
if (DesiredFormat(currentFormat, aFormatHint) == SurfaceFormat::B8G8R8A8 &&
|
|
currentFormat != SurfaceFormat::B8G8R8A8) {
|
|
result = FilterProcessing::ConvertToB8G8R8A8(result);
|
|
}
|
|
|
|
#ifdef DEBUG_DUMP_SURFACES
|
|
printf("<img src='"); DumpAsPNG(result); printf("'></section>");
|
|
#endif
|
|
|
|
MOZ_ASSERT(!result || result->GetSize() == aRect.Size(), "wrong surface size");
|
|
|
|
return result;
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeSoftware::GetInputRectInRect(uint32_t aInputEnumIndex,
|
|
const IntRect &aInRect)
|
|
{
|
|
if (IntRectOverflows(aInRect)) {
|
|
return IntRect();
|
|
}
|
|
|
|
int32_t inputIndex = InputIndex(aInputEnumIndex);
|
|
if (inputIndex < 0 || (uint32_t)inputIndex >= NumberOfSetInputs()) {
|
|
MOZ_CRASH();
|
|
return IntRect();
|
|
}
|
|
if (mInputSurfaces[inputIndex]) {
|
|
return aInRect.Intersect(IntRect(IntPoint(0, 0),
|
|
mInputSurfaces[inputIndex]->GetSize()));
|
|
}
|
|
RefPtr<FilterNodeSoftware> filter = mInputFilters[inputIndex];
|
|
MOZ_ASSERT(filter, "missing input");
|
|
return filter->GetOutputRectInRect(aInRect);
|
|
}
|
|
|
|
size_t
|
|
FilterNodeSoftware::NumberOfSetInputs()
|
|
{
|
|
return std::max(mInputSurfaces.size(), mInputFilters.size());
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::AddInvalidationListener(FilterInvalidationListener* aListener)
|
|
{
|
|
MOZ_ASSERT(aListener, "null listener");
|
|
mInvalidationListeners.push_back(aListener);
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::RemoveInvalidationListener(FilterInvalidationListener* aListener)
|
|
{
|
|
MOZ_ASSERT(aListener, "null listener");
|
|
std::vector<FilterInvalidationListener*>::iterator it =
|
|
std::find(mInvalidationListeners.begin(), mInvalidationListeners.end(), aListener);
|
|
mInvalidationListeners.erase(it);
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::FilterInvalidated(FilterNodeSoftware* aFilter)
|
|
{
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::Invalidate()
|
|
{
|
|
mCachedOutput = nullptr;
|
|
mCachedRect = IntRect();
|
|
for (std::vector<FilterInvalidationListener*>::iterator it = mInvalidationListeners.begin();
|
|
it != mInvalidationListeners.end(); it++) {
|
|
(*it)->FilterInvalidated(this);
|
|
}
|
|
}
|
|
|
|
FilterNodeSoftware::~FilterNodeSoftware()
|
|
{
|
|
MOZ_ASSERT(!mInvalidationListeners.size(),
|
|
"All invalidation listeners should have unsubscribed themselves by now!");
|
|
|
|
for (std::vector<RefPtr<FilterNodeSoftware> >::iterator it = mInputFilters.begin();
|
|
it != mInputFilters.end(); it++) {
|
|
if (*it) {
|
|
(*it)->RemoveInvalidationListener(this);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::SetInput(uint32_t aIndex, FilterNode *aFilter)
|
|
{
|
|
if (aFilter->GetBackendType() != FILTER_BACKEND_SOFTWARE) {
|
|
MOZ_ASSERT(false, "can only take software filters as inputs");
|
|
return;
|
|
}
|
|
SetInput(aIndex, nullptr, static_cast<FilterNodeSoftware*>(aFilter));
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::SetInput(uint32_t aIndex, SourceSurface *aSurface)
|
|
{
|
|
SetInput(aIndex, aSurface, nullptr);
|
|
}
|
|
|
|
void
|
|
FilterNodeSoftware::SetInput(uint32_t aInputEnumIndex,
|
|
SourceSurface *aSurface,
|
|
FilterNodeSoftware *aFilter)
|
|
{
|
|
int32_t inputIndex = InputIndex(aInputEnumIndex);
|
|
if (inputIndex < 0) {
|
|
MOZ_CRASH();
|
|
return;
|
|
}
|
|
if ((uint32_t)inputIndex >= mInputSurfaces.size()) {
|
|
mInputSurfaces.resize(inputIndex + 1);
|
|
}
|
|
if ((uint32_t)inputIndex >= mInputFilters.size()) {
|
|
mInputFilters.resize(inputIndex + 1);
|
|
}
|
|
mInputSurfaces[inputIndex] = aSurface;
|
|
if (mInputFilters[inputIndex]) {
|
|
mInputFilters[inputIndex]->RemoveInvalidationListener(this);
|
|
}
|
|
if (aFilter) {
|
|
aFilter->AddInvalidationListener(this);
|
|
}
|
|
mInputFilters[inputIndex] = aFilter;
|
|
Invalidate();
|
|
}
|
|
|
|
FilterNodeBlendSoftware::FilterNodeBlendSoftware()
|
|
: mBlendMode(BLEND_MODE_MULTIPLY)
|
|
{}
|
|
|
|
int32_t
|
|
FilterNodeBlendSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_BLEND_IN: return 0;
|
|
case IN_BLEND_IN2: return 1;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeBlendSoftware::SetAttribute(uint32_t aIndex, uint32_t aBlendMode)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_BLEND_BLENDMODE);
|
|
mBlendMode = static_cast<BlendMode>(aBlendMode);
|
|
Invalidate();
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeBlendSoftware::Render(const IntRect& aRect)
|
|
{
|
|
RefPtr<DataSourceSurface> input1 =
|
|
GetInputDataSourceSurface(IN_BLEND_IN, aRect, NEED_COLOR_CHANNELS);
|
|
RefPtr<DataSourceSurface> input2 =
|
|
GetInputDataSourceSurface(IN_BLEND_IN2, aRect, NEED_COLOR_CHANNELS);
|
|
|
|
// Null inputs need to be treated as transparent.
|
|
|
|
// First case: both are transparent.
|
|
if (!input1 && !input2) {
|
|
// Then the result is transparent, too.
|
|
return nullptr;
|
|
}
|
|
|
|
// Second case: both are non-transparent.
|
|
if (input1 && input2) {
|
|
// Apply normal filtering.
|
|
return FilterProcessing::ApplyBlending(input1, input2, mBlendMode);
|
|
}
|
|
|
|
// Third case: one of them is transparent. Return the non-transparent one.
|
|
return input1 ? input1 : input2;
|
|
}
|
|
|
|
void
|
|
FilterNodeBlendSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_BLEND_IN, aRect);
|
|
RequestInputRect(IN_BLEND_IN2, aRect);
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeBlendSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
return GetInputRectInRect(IN_BLEND_IN, aRect).Union(
|
|
GetInputRectInRect(IN_BLEND_IN2, aRect)).Intersect(aRect);
|
|
}
|
|
|
|
FilterNodeTransformSoftware::FilterNodeTransformSoftware()
|
|
: mFilter(Filter::GOOD)
|
|
{}
|
|
|
|
int32_t
|
|
FilterNodeTransformSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_TRANSFORM_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeTransformSoftware::SetAttribute(uint32_t aIndex, uint32_t aFilter)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_TRANSFORM_FILTER);
|
|
mFilter = static_cast<Filter>(aFilter);
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeTransformSoftware::SetAttribute(uint32_t aIndex, const Matrix &aMatrix)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_TRANSFORM_MATRIX);
|
|
mMatrix = aMatrix;
|
|
Invalidate();
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeTransformSoftware::SourceRectForOutputRect(const IntRect &aRect)
|
|
{
|
|
if (aRect.IsEmpty()) {
|
|
return IntRect();
|
|
}
|
|
|
|
Matrix inverted(mMatrix);
|
|
if (!inverted.Invert()) {
|
|
return IntRect();
|
|
}
|
|
|
|
Rect neededRect = inverted.TransformBounds(Rect(aRect));
|
|
neededRect.RoundOut();
|
|
IntRect neededIntRect;
|
|
if (!neededRect.ToIntRect(&neededIntRect)) {
|
|
return IntRect();
|
|
}
|
|
return GetInputRectInRect(IN_TRANSFORM_IN, neededIntRect);
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeTransformSoftware::Render(const IntRect& aRect)
|
|
{
|
|
IntRect srcRect = SourceRectForOutputRect(aRect);
|
|
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_TRANSFORM_IN, srcRect, NEED_COLOR_CHANNELS);
|
|
|
|
if (!input) {
|
|
return nullptr;
|
|
}
|
|
|
|
Matrix transform = Matrix::Translation(srcRect.x, srcRect.y) * mMatrix *
|
|
Matrix::Translation(-aRect.x, -aRect.y);
|
|
if (transform.IsIdentity() && srcRect.Size() == aRect.Size()) {
|
|
return input;
|
|
}
|
|
|
|
RefPtr<DrawTarget> dt =
|
|
Factory::CreateDrawTarget(BackendType::CAIRO, aRect.Size(), input->GetFormat());
|
|
if (!dt) {
|
|
return nullptr;
|
|
}
|
|
|
|
Rect r(0, 0, srcRect.width, srcRect.height);
|
|
dt->SetTransform(transform);
|
|
dt->DrawSurface(input, r, r, DrawSurfaceOptions(mFilter));
|
|
|
|
RefPtr<SourceSurface> result = dt->Snapshot();
|
|
RefPtr<DataSourceSurface> resultData = result->GetDataSurface();
|
|
return resultData;
|
|
}
|
|
|
|
void
|
|
FilterNodeTransformSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_TRANSFORM_IN, SourceRectForOutputRect(aRect));
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeTransformSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
IntRect srcRect = SourceRectForOutputRect(aRect);
|
|
if (srcRect.IsEmpty()) {
|
|
return IntRect();
|
|
}
|
|
|
|
Rect outRect = mMatrix.TransformBounds(Rect(srcRect));
|
|
outRect.RoundOut();
|
|
IntRect outIntRect;
|
|
if (!outRect.ToIntRect(&outIntRect)) {
|
|
return IntRect();
|
|
}
|
|
return outIntRect.Intersect(aRect);
|
|
}
|
|
|
|
FilterNodeMorphologySoftware::FilterNodeMorphologySoftware()
|
|
: mOperator(MORPHOLOGY_OPERATOR_ERODE)
|
|
{}
|
|
|
|
int32_t
|
|
FilterNodeMorphologySoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_MORPHOLOGY_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeMorphologySoftware::SetAttribute(uint32_t aIndex,
|
|
const IntSize &aRadii)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_MORPHOLOGY_RADII);
|
|
mRadii.width = std::min(std::max(aRadii.width, 0), 100000);
|
|
mRadii.height = std::min(std::max(aRadii.height, 0), 100000);
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeMorphologySoftware::SetAttribute(uint32_t aIndex,
|
|
uint32_t aOperator)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_MORPHOLOGY_OPERATOR);
|
|
mOperator = static_cast<MorphologyOperator>(aOperator);
|
|
Invalidate();
|
|
}
|
|
|
|
static TemporaryRef<DataSourceSurface>
|
|
ApplyMorphology(const IntRect& aSourceRect, DataSourceSurface* aInput,
|
|
const IntRect& aDestRect, int32_t rx, int32_t ry,
|
|
MorphologyOperator aOperator)
|
|
{
|
|
IntRect srcRect = aSourceRect - aDestRect.TopLeft();
|
|
IntRect destRect = aDestRect - aDestRect.TopLeft();
|
|
IntRect tmpRect(destRect.x, srcRect.y, destRect.width, srcRect.height);
|
|
#ifdef DEBUG
|
|
IntMargin margin = srcRect - destRect;
|
|
MOZ_ASSERT(margin.top >= ry && margin.right >= rx &&
|
|
margin.bottom >= ry && margin.left >= rx, "insufficient margin");
|
|
#endif
|
|
|
|
RefPtr<DataSourceSurface> tmp;
|
|
if (rx == 0) {
|
|
tmp = aInput;
|
|
} else {
|
|
tmp = Factory::CreateDataSourceSurface(tmpRect.Size(), SurfaceFormat::B8G8R8A8);
|
|
if (!tmp) {
|
|
return nullptr;
|
|
}
|
|
|
|
int32_t sourceStride = aInput->Stride();
|
|
uint8_t* sourceData = DataAtOffset(aInput, destRect.TopLeft() - srcRect.TopLeft());
|
|
|
|
int32_t tmpStride = tmp->Stride();
|
|
uint8_t* tmpData = DataAtOffset(tmp, destRect.TopLeft() - tmpRect.TopLeft());
|
|
|
|
FilterProcessing::ApplyMorphologyHorizontal(
|
|
sourceData, sourceStride, tmpData, tmpStride, tmpRect, rx, aOperator);
|
|
}
|
|
|
|
RefPtr<DataSourceSurface> dest;
|
|
if (ry == 0) {
|
|
dest = tmp;
|
|
} else {
|
|
dest = Factory::CreateDataSourceSurface(destRect.Size(), SurfaceFormat::B8G8R8A8);
|
|
if (!dest) {
|
|
return nullptr;
|
|
}
|
|
|
|
int32_t tmpStride = tmp->Stride();
|
|
uint8_t* tmpData = DataAtOffset(tmp, destRect.TopLeft() - tmpRect.TopLeft());
|
|
|
|
int32_t destStride = dest->Stride();
|
|
uint8_t* destData = dest->GetData();
|
|
|
|
FilterProcessing::ApplyMorphologyVertical(
|
|
tmpData, tmpStride, destData, destStride, destRect, ry, aOperator);
|
|
}
|
|
|
|
return dest;
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeMorphologySoftware::Render(const IntRect& aRect)
|
|
{
|
|
IntRect srcRect = aRect;
|
|
srcRect.Inflate(mRadii);
|
|
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_MORPHOLOGY_IN, srcRect, NEED_COLOR_CHANNELS);
|
|
if (!input) {
|
|
return nullptr;
|
|
}
|
|
|
|
int32_t rx = mRadii.width;
|
|
int32_t ry = mRadii.height;
|
|
|
|
if (rx == 0 && ry == 0) {
|
|
return input;
|
|
}
|
|
|
|
return ApplyMorphology(srcRect, input, aRect, rx, ry, mOperator);
|
|
}
|
|
|
|
void
|
|
FilterNodeMorphologySoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
IntRect srcRect = aRect;
|
|
srcRect.Inflate(mRadii);
|
|
RequestInputRect(IN_MORPHOLOGY_IN, srcRect);
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeMorphologySoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
IntRect inflatedSourceRect = aRect;
|
|
inflatedSourceRect.Inflate(mRadii);
|
|
IntRect inputRect = GetInputRectInRect(IN_MORPHOLOGY_IN, inflatedSourceRect);
|
|
if (mOperator == MORPHOLOGY_OPERATOR_ERODE) {
|
|
inputRect.Deflate(mRadii);
|
|
} else {
|
|
inputRect.Inflate(mRadii);
|
|
}
|
|
return inputRect.Intersect(aRect);
|
|
}
|
|
|
|
int32_t
|
|
FilterNodeColorMatrixSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_COLOR_MATRIX_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeColorMatrixSoftware::SetAttribute(uint32_t aIndex,
|
|
const Matrix5x4 &aMatrix)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_COLOR_MATRIX_MATRIX);
|
|
mMatrix = aMatrix;
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeColorMatrixSoftware::SetAttribute(uint32_t aIndex,
|
|
uint32_t aAlphaMode)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_COLOR_MATRIX_ALPHA_MODE);
|
|
mAlphaMode = (AlphaMode)aAlphaMode;
|
|
Invalidate();
|
|
}
|
|
|
|
static TemporaryRef<DataSourceSurface>
|
|
Premultiply(DataSourceSurface* aSurface)
|
|
{
|
|
if (aSurface->GetFormat() == SurfaceFormat::A8) {
|
|
return aSurface;
|
|
}
|
|
|
|
IntSize size = aSurface->GetSize();
|
|
RefPtr<DataSourceSurface> target =
|
|
Factory::CreateDataSourceSurface(size, SurfaceFormat::B8G8R8A8);
|
|
if (!target) {
|
|
return nullptr;
|
|
}
|
|
|
|
uint8_t* inputData = aSurface->GetData();
|
|
int32_t inputStride = aSurface->Stride();
|
|
uint8_t* targetData = target->GetData();
|
|
int32_t targetStride = target->Stride();
|
|
|
|
FilterProcessing::DoPremultiplicationCalculation(
|
|
size, targetData, targetStride, inputData, inputStride);
|
|
|
|
return target;
|
|
}
|
|
|
|
static TemporaryRef<DataSourceSurface>
|
|
Unpremultiply(DataSourceSurface* aSurface)
|
|
{
|
|
if (aSurface->GetFormat() == SurfaceFormat::A8) {
|
|
return aSurface;
|
|
}
|
|
|
|
IntSize size = aSurface->GetSize();
|
|
RefPtr<DataSourceSurface> target =
|
|
Factory::CreateDataSourceSurface(size, SurfaceFormat::B8G8R8A8);
|
|
if (!target) {
|
|
return nullptr;
|
|
}
|
|
|
|
uint8_t* inputData = aSurface->GetData();
|
|
int32_t inputStride = aSurface->Stride();
|
|
uint8_t* targetData = target->GetData();
|
|
int32_t targetStride = target->Stride();
|
|
|
|
FilterProcessing::DoUnpremultiplicationCalculation(
|
|
size, targetData, targetStride, inputData, inputStride);
|
|
|
|
return target;
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeColorMatrixSoftware::Render(const IntRect& aRect)
|
|
{
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_COLOR_MATRIX_IN, aRect, NEED_COLOR_CHANNELS);
|
|
if (!input) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (mAlphaMode == ALPHA_MODE_PREMULTIPLIED) {
|
|
input = Unpremultiply(input);
|
|
}
|
|
|
|
RefPtr<DataSourceSurface> result =
|
|
FilterProcessing::ApplyColorMatrix(input, mMatrix);
|
|
|
|
if (mAlphaMode == ALPHA_MODE_PREMULTIPLIED) {
|
|
result = Premultiply(result);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
FilterNodeColorMatrixSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_COLOR_MATRIX_IN, aRect);
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeColorMatrixSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
return GetInputRectInRect(IN_COLOR_MATRIX_IN, aRect);
|
|
}
|
|
|
|
void
|
|
FilterNodeFloodSoftware::SetAttribute(uint32_t aIndex, const Color &aColor)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_FLOOD_COLOR);
|
|
mColor = aColor;
|
|
Invalidate();
|
|
}
|
|
|
|
static uint32_t
|
|
ColorToBGRA(const Color& aColor)
|
|
{
|
|
union {
|
|
uint32_t color;
|
|
uint8_t components[4];
|
|
};
|
|
components[B8G8R8A8_COMPONENT_BYTEOFFSET_R] = NS_lround(aColor.r * aColor.a * 255.0f);
|
|
components[B8G8R8A8_COMPONENT_BYTEOFFSET_G] = NS_lround(aColor.g * aColor.a * 255.0f);
|
|
components[B8G8R8A8_COMPONENT_BYTEOFFSET_B] = NS_lround(aColor.b * aColor.a * 255.0f);
|
|
components[B8G8R8A8_COMPONENT_BYTEOFFSET_A] = NS_lround(aColor.a * 255.0f);
|
|
return color;
|
|
}
|
|
|
|
static SurfaceFormat
|
|
FormatForColor(Color aColor)
|
|
{
|
|
if (aColor.r == 0 && aColor.g == 0 && aColor.b == 0) {
|
|
return SurfaceFormat::A8;
|
|
}
|
|
return SurfaceFormat::B8G8R8A8;
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeFloodSoftware::Render(const IntRect& aRect)
|
|
{
|
|
SurfaceFormat format = FormatForColor(mColor);
|
|
RefPtr<DataSourceSurface> target =
|
|
Factory::CreateDataSourceSurface(aRect.Size(), format);
|
|
if (!target) {
|
|
return nullptr;
|
|
}
|
|
|
|
uint8_t* targetData = target->GetData();
|
|
uint32_t stride = target->Stride();
|
|
|
|
if (format == SurfaceFormat::B8G8R8A8) {
|
|
uint32_t color = ColorToBGRA(mColor);
|
|
for (int32_t y = 0; y < aRect.height; y++) {
|
|
for (int32_t x = 0; x < aRect.width; x++) {
|
|
*((uint32_t*)targetData + x) = color;
|
|
}
|
|
targetData += stride;
|
|
}
|
|
} else if (format == SurfaceFormat::A8) {
|
|
uint8_t alpha = NS_lround(mColor.a * 255.0f);
|
|
for (int32_t y = 0; y < aRect.height; y++) {
|
|
for (int32_t x = 0; x < aRect.width; x++) {
|
|
targetData[x] = alpha;
|
|
}
|
|
targetData += stride;
|
|
}
|
|
} else {
|
|
MOZ_CRASH();
|
|
}
|
|
|
|
return target;
|
|
}
|
|
|
|
// Override GetOutput to get around caching. Rendering simple floods is
|
|
// comparatively fast.
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeFloodSoftware::GetOutput(const IntRect& aRect)
|
|
{
|
|
return Render(aRect);
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeFloodSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
if (mColor.a == 0.0f) {
|
|
return IntRect();
|
|
}
|
|
return aRect;
|
|
}
|
|
|
|
int32_t
|
|
FilterNodeTileSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_TILE_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeTileSoftware::SetAttribute(uint32_t aIndex,
|
|
const IntRect &aSourceRect)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_TILE_SOURCE_RECT);
|
|
mSourceRect = IntRect(int32_t(aSourceRect.x), int32_t(aSourceRect.y),
|
|
int32_t(aSourceRect.width), int32_t(aSourceRect.height));
|
|
Invalidate();
|
|
}
|
|
|
|
namespace {
|
|
struct CompareIntRects
|
|
{
|
|
bool operator()(const IntRect& a, const IntRect& b) const
|
|
{
|
|
if (a.x != b.x) {
|
|
return a.x < b.x;
|
|
}
|
|
if (a.y != b.y) {
|
|
return a.y < b.y;
|
|
}
|
|
if (a.width != b.width) {
|
|
return a.width < b.width;
|
|
}
|
|
return a.height < b.height;
|
|
}
|
|
};
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeTileSoftware::Render(const IntRect& aRect)
|
|
{
|
|
if (mSourceRect.IsEmpty()) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (mSourceRect.Contains(aRect)) {
|
|
return GetInputDataSourceSurface(IN_TILE_IN, aRect);
|
|
}
|
|
|
|
RefPtr<DataSourceSurface> target;
|
|
|
|
typedef std::map<IntRect, RefPtr<DataSourceSurface>, CompareIntRects> InputMap;
|
|
InputMap inputs;
|
|
|
|
IntPoint startIndex = TileIndex(mSourceRect, aRect.TopLeft());
|
|
IntPoint endIndex = TileIndex(mSourceRect, aRect.BottomRight());
|
|
for (int32_t ix = startIndex.x; ix <= endIndex.x; ix++) {
|
|
for (int32_t iy = startIndex.y; iy <= endIndex.y; iy++) {
|
|
IntPoint sourceToDestOffset(ix * mSourceRect.width,
|
|
iy * mSourceRect.height);
|
|
IntRect destRect = aRect.Intersect(mSourceRect + sourceToDestOffset);
|
|
IntRect srcRect = destRect - sourceToDestOffset;
|
|
if (srcRect.IsEmpty()) {
|
|
continue;
|
|
}
|
|
|
|
RefPtr<DataSourceSurface> input;
|
|
InputMap::iterator it = inputs.find(srcRect);
|
|
if (it == inputs.end()) {
|
|
input = GetInputDataSourceSurface(IN_TILE_IN, srcRect);
|
|
inputs[srcRect] = input;
|
|
} else {
|
|
input = it->second;
|
|
}
|
|
if (!input) {
|
|
return nullptr;
|
|
}
|
|
if (!target) {
|
|
// We delay creating the target until now because we want to use the
|
|
// same format as our input filter, and we do not actually know the
|
|
// input format before we call GetInputDataSourceSurface.
|
|
target = Factory::CreateDataSourceSurface(aRect.Size(), input->GetFormat());
|
|
if (!target) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
MOZ_ASSERT(input->GetFormat() == target->GetFormat(), "different surface formats from the same input?");
|
|
|
|
CopyRect(input, target, srcRect - srcRect.TopLeft(), destRect.TopLeft() - aRect.TopLeft());
|
|
}
|
|
}
|
|
|
|
return target;
|
|
}
|
|
|
|
void
|
|
FilterNodeTileSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
// Do not request anything.
|
|
// Source rects for the tile filter can be discontinuous with large gaps
|
|
// between them. Requesting those from our input filter might cause it to
|
|
// render the whole bounding box of all of them, which would be wasteful.
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeTileSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
return aRect;
|
|
}
|
|
|
|
FilterNodeComponentTransferSoftware::FilterNodeComponentTransferSoftware()
|
|
: mDisableR(true)
|
|
, mDisableG(true)
|
|
, mDisableB(true)
|
|
, mDisableA(true)
|
|
{}
|
|
|
|
void
|
|
FilterNodeComponentTransferSoftware::SetAttribute(uint32_t aIndex,
|
|
bool aDisable)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_TRANSFER_DISABLE_R:
|
|
mDisableR = aDisable;
|
|
break;
|
|
case ATT_TRANSFER_DISABLE_G:
|
|
mDisableG = aDisable;
|
|
break;
|
|
case ATT_TRANSFER_DISABLE_B:
|
|
mDisableB = aDisable;
|
|
break;
|
|
case ATT_TRANSFER_DISABLE_A:
|
|
mDisableA = aDisable;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeComponentTransferSoftware::GenerateLookupTable(ptrdiff_t aComponent,
|
|
uint8_t aTables[4][256],
|
|
bool aDisabled)
|
|
{
|
|
if (aDisabled) {
|
|
static uint8_t sIdentityLookupTable[256];
|
|
static bool sInitializedIdentityLookupTable = false;
|
|
if (!sInitializedIdentityLookupTable) {
|
|
for (int32_t i = 0; i < 256; i++) {
|
|
sIdentityLookupTable[i] = i;
|
|
}
|
|
sInitializedIdentityLookupTable = true;
|
|
}
|
|
memcpy(aTables[aComponent], sIdentityLookupTable, 256);
|
|
} else {
|
|
FillLookupTable(aComponent, aTables[aComponent]);
|
|
}
|
|
}
|
|
|
|
template<uint32_t BytesPerPixel>
|
|
static void TransferComponents(DataSourceSurface* aInput,
|
|
DataSourceSurface* aTarget,
|
|
const uint8_t aLookupTables[BytesPerPixel][256])
|
|
{
|
|
MOZ_ASSERT(aInput->GetFormat() == aTarget->GetFormat(), "different formats");
|
|
IntSize size = aInput->GetSize();
|
|
|
|
uint8_t* sourceData = aInput->GetData();
|
|
uint8_t* targetData = aTarget->GetData();
|
|
uint32_t sourceStride = aInput->Stride();
|
|
uint32_t targetStride = aTarget->Stride();
|
|
|
|
for (int32_t y = 0; y < size.height; y++) {
|
|
for (int32_t x = 0; x < size.width; x++) {
|
|
uint32_t sourceIndex = y * sourceStride + x * BytesPerPixel;
|
|
uint32_t targetIndex = y * targetStride + x * BytesPerPixel;
|
|
for (uint32_t i = 0; i < BytesPerPixel; i++) {
|
|
targetData[targetIndex + i] = aLookupTables[i][sourceData[sourceIndex + i]];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
IsAllZero(uint8_t aLookupTable[256])
|
|
{
|
|
for (int32_t i = 0; i < 256; i++) {
|
|
if (aLookupTable[i] != 0) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeComponentTransferSoftware::Render(const IntRect& aRect)
|
|
{
|
|
if (mDisableR && mDisableG && mDisableB && mDisableA) {
|
|
return GetInputDataSourceSurface(IN_TRANSFER_IN, aRect);
|
|
}
|
|
|
|
uint8_t lookupTables[4][256];
|
|
GenerateLookupTable(B8G8R8A8_COMPONENT_BYTEOFFSET_R, lookupTables, mDisableR);
|
|
GenerateLookupTable(B8G8R8A8_COMPONENT_BYTEOFFSET_G, lookupTables, mDisableG);
|
|
GenerateLookupTable(B8G8R8A8_COMPONENT_BYTEOFFSET_B, lookupTables, mDisableB);
|
|
GenerateLookupTable(B8G8R8A8_COMPONENT_BYTEOFFSET_A, lookupTables, mDisableA);
|
|
|
|
bool needColorChannels =
|
|
lookupTables[B8G8R8A8_COMPONENT_BYTEOFFSET_R][0] != 0 ||
|
|
lookupTables[B8G8R8A8_COMPONENT_BYTEOFFSET_G][0] != 0 ||
|
|
lookupTables[B8G8R8A8_COMPONENT_BYTEOFFSET_B][0] != 0;
|
|
|
|
FormatHint pref = needColorChannels ? NEED_COLOR_CHANNELS : CAN_HANDLE_A8;
|
|
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_TRANSFER_IN, aRect, pref);
|
|
if (!input) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (input->GetFormat() == SurfaceFormat::B8G8R8A8 && !needColorChannels) {
|
|
bool colorChannelsBecomeBlack =
|
|
IsAllZero(lookupTables[B8G8R8A8_COMPONENT_BYTEOFFSET_R]) &&
|
|
IsAllZero(lookupTables[B8G8R8A8_COMPONENT_BYTEOFFSET_G]) &&
|
|
IsAllZero(lookupTables[B8G8R8A8_COMPONENT_BYTEOFFSET_B]);
|
|
|
|
if (colorChannelsBecomeBlack) {
|
|
input = FilterProcessing::ExtractAlpha(input);
|
|
}
|
|
}
|
|
|
|
SurfaceFormat format = input->GetFormat();
|
|
if (format == SurfaceFormat::A8 && mDisableA) {
|
|
return input;
|
|
}
|
|
|
|
RefPtr<DataSourceSurface> target =
|
|
Factory::CreateDataSourceSurface(aRect.Size(), format);
|
|
if (!target) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (format == SurfaceFormat::A8) {
|
|
TransferComponents<1>(input, target, &lookupTables[B8G8R8A8_COMPONENT_BYTEOFFSET_A]);
|
|
} else {
|
|
TransferComponents<4>(input, target, lookupTables);
|
|
}
|
|
|
|
return target;
|
|
}
|
|
|
|
void
|
|
FilterNodeComponentTransferSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_TRANSFER_IN, aRect);
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeComponentTransferSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
return GetInputRectInRect(IN_TRANSFER_IN, aRect);
|
|
}
|
|
|
|
int32_t
|
|
FilterNodeComponentTransferSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_TRANSFER_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeTableTransferSoftware::SetAttribute(uint32_t aIndex,
|
|
const Float* aFloat,
|
|
uint32_t aSize)
|
|
{
|
|
std::vector<Float> table(aFloat, aFloat + aSize);
|
|
switch (aIndex) {
|
|
case ATT_TABLE_TRANSFER_TABLE_R:
|
|
mTableR = table;
|
|
break;
|
|
case ATT_TABLE_TRANSFER_TABLE_G:
|
|
mTableG = table;
|
|
break;
|
|
case ATT_TABLE_TRANSFER_TABLE_B:
|
|
mTableB = table;
|
|
break;
|
|
case ATT_TABLE_TRANSFER_TABLE_A:
|
|
mTableA = table;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeTableTransferSoftware::FillLookupTable(ptrdiff_t aComponent,
|
|
uint8_t aTable[256])
|
|
{
|
|
switch (aComponent) {
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_R:
|
|
FillLookupTableImpl(mTableR, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_G:
|
|
FillLookupTableImpl(mTableG, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_B:
|
|
FillLookupTableImpl(mTableB, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_A:
|
|
FillLookupTableImpl(mTableA, aTable);
|
|
break;
|
|
default:
|
|
MOZ_ASSERT(false, "unknown component");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeTableTransferSoftware::FillLookupTableImpl(std::vector<Float>& aTableValues,
|
|
uint8_t aTable[256])
|
|
{
|
|
uint32_t tvLength = aTableValues.size();
|
|
if (tvLength < 2) {
|
|
return;
|
|
}
|
|
|
|
for (size_t i = 0; i < 256; i++) {
|
|
uint32_t k = (i * (tvLength - 1)) / 255;
|
|
Float v1 = aTableValues[k];
|
|
Float v2 = aTableValues[std::min(k + 1, tvLength - 1)];
|
|
int32_t val =
|
|
int32_t(255 * (v1 + (i/255.0f - k/float(tvLength-1))*(tvLength - 1)*(v2 - v1)));
|
|
val = std::min(255, val);
|
|
val = std::max(0, val);
|
|
aTable[i] = val;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeDiscreteTransferSoftware::SetAttribute(uint32_t aIndex,
|
|
const Float* aFloat,
|
|
uint32_t aSize)
|
|
{
|
|
std::vector<Float> discrete(aFloat, aFloat + aSize);
|
|
switch (aIndex) {
|
|
case ATT_DISCRETE_TRANSFER_TABLE_R:
|
|
mTableR = discrete;
|
|
break;
|
|
case ATT_DISCRETE_TRANSFER_TABLE_G:
|
|
mTableG = discrete;
|
|
break;
|
|
case ATT_DISCRETE_TRANSFER_TABLE_B:
|
|
mTableB = discrete;
|
|
break;
|
|
case ATT_DISCRETE_TRANSFER_TABLE_A:
|
|
mTableA = discrete;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeDiscreteTransferSoftware::FillLookupTable(ptrdiff_t aComponent,
|
|
uint8_t aTable[256])
|
|
{
|
|
switch (aComponent) {
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_R:
|
|
FillLookupTableImpl(mTableR, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_G:
|
|
FillLookupTableImpl(mTableG, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_B:
|
|
FillLookupTableImpl(mTableB, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_A:
|
|
FillLookupTableImpl(mTableA, aTable);
|
|
break;
|
|
default:
|
|
MOZ_ASSERT(false, "unknown component");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeDiscreteTransferSoftware::FillLookupTableImpl(std::vector<Float>& aTableValues,
|
|
uint8_t aTable[256])
|
|
{
|
|
uint32_t tvLength = aTableValues.size();
|
|
if (tvLength < 1) {
|
|
return;
|
|
}
|
|
|
|
for (size_t i = 0; i < 256; i++) {
|
|
uint32_t k = (i * tvLength) / 255;
|
|
k = std::min(k, tvLength - 1);
|
|
Float v = aTableValues[k];
|
|
int32_t val = NS_lround(255 * v);
|
|
val = std::min(255, val);
|
|
val = std::max(0, val);
|
|
aTable[i] = val;
|
|
}
|
|
}
|
|
|
|
FilterNodeLinearTransferSoftware::FilterNodeLinearTransferSoftware()
|
|
: mSlopeR(0)
|
|
, mSlopeG(0)
|
|
, mSlopeB(0)
|
|
, mSlopeA(0)
|
|
, mInterceptR(0)
|
|
, mInterceptG(0)
|
|
, mInterceptB(0)
|
|
, mInterceptA(0)
|
|
{}
|
|
|
|
void
|
|
FilterNodeLinearTransferSoftware::SetAttribute(uint32_t aIndex,
|
|
Float aValue)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_LINEAR_TRANSFER_SLOPE_R:
|
|
mSlopeR = aValue;
|
|
break;
|
|
case ATT_LINEAR_TRANSFER_INTERCEPT_R:
|
|
mInterceptR = aValue;
|
|
break;
|
|
case ATT_LINEAR_TRANSFER_SLOPE_G:
|
|
mSlopeG = aValue;
|
|
break;
|
|
case ATT_LINEAR_TRANSFER_INTERCEPT_G:
|
|
mInterceptG = aValue;
|
|
break;
|
|
case ATT_LINEAR_TRANSFER_SLOPE_B:
|
|
mSlopeB = aValue;
|
|
break;
|
|
case ATT_LINEAR_TRANSFER_INTERCEPT_B:
|
|
mInterceptB = aValue;
|
|
break;
|
|
case ATT_LINEAR_TRANSFER_SLOPE_A:
|
|
mSlopeA = aValue;
|
|
break;
|
|
case ATT_LINEAR_TRANSFER_INTERCEPT_A:
|
|
mInterceptA = aValue;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeLinearTransferSoftware::FillLookupTable(ptrdiff_t aComponent,
|
|
uint8_t aTable[256])
|
|
{
|
|
switch (aComponent) {
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_R:
|
|
FillLookupTableImpl(mSlopeR, mInterceptR, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_G:
|
|
FillLookupTableImpl(mSlopeG, mInterceptG, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_B:
|
|
FillLookupTableImpl(mSlopeB, mInterceptB, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_A:
|
|
FillLookupTableImpl(mSlopeA, mInterceptA, aTable);
|
|
break;
|
|
default:
|
|
MOZ_ASSERT(false, "unknown component");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeLinearTransferSoftware::FillLookupTableImpl(Float aSlope,
|
|
Float aIntercept,
|
|
uint8_t aTable[256])
|
|
{
|
|
for (size_t i = 0; i < 256; i++) {
|
|
int32_t val = NS_lround(aSlope * i + 255 * aIntercept);
|
|
val = std::min(255, val);
|
|
val = std::max(0, val);
|
|
aTable[i] = val;
|
|
}
|
|
}
|
|
|
|
FilterNodeGammaTransferSoftware::FilterNodeGammaTransferSoftware()
|
|
: mAmplitudeR(0)
|
|
, mAmplitudeG(0)
|
|
, mAmplitudeB(0)
|
|
, mAmplitudeA(0)
|
|
, mExponentR(0)
|
|
, mExponentG(0)
|
|
, mExponentB(0)
|
|
, mExponentA(0)
|
|
{}
|
|
|
|
void
|
|
FilterNodeGammaTransferSoftware::SetAttribute(uint32_t aIndex,
|
|
Float aValue)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_GAMMA_TRANSFER_AMPLITUDE_R:
|
|
mAmplitudeR = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_EXPONENT_R:
|
|
mExponentR = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_OFFSET_R:
|
|
mOffsetR = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_AMPLITUDE_G:
|
|
mAmplitudeG = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_EXPONENT_G:
|
|
mExponentG = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_OFFSET_G:
|
|
mOffsetG = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_AMPLITUDE_B:
|
|
mAmplitudeB = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_EXPONENT_B:
|
|
mExponentB = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_OFFSET_B:
|
|
mOffsetB = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_AMPLITUDE_A:
|
|
mAmplitudeA = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_EXPONENT_A:
|
|
mExponentA = aValue;
|
|
break;
|
|
case ATT_GAMMA_TRANSFER_OFFSET_A:
|
|
mOffsetA = aValue;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeGammaTransferSoftware::FillLookupTable(ptrdiff_t aComponent,
|
|
uint8_t aTable[256])
|
|
{
|
|
switch (aComponent) {
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_R:
|
|
FillLookupTableImpl(mAmplitudeR, mExponentR, mOffsetR, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_G:
|
|
FillLookupTableImpl(mAmplitudeG, mExponentG, mOffsetG, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_B:
|
|
FillLookupTableImpl(mAmplitudeB, mExponentB, mOffsetB, aTable);
|
|
break;
|
|
case B8G8R8A8_COMPONENT_BYTEOFFSET_A:
|
|
FillLookupTableImpl(mAmplitudeA, mExponentA, mOffsetA, aTable);
|
|
break;
|
|
default:
|
|
MOZ_ASSERT(false, "unknown component");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeGammaTransferSoftware::FillLookupTableImpl(Float aAmplitude,
|
|
Float aExponent,
|
|
Float aOffset,
|
|
uint8_t aTable[256])
|
|
{
|
|
for (size_t i = 0; i < 256; i++) {
|
|
int32_t val = NS_lround(255 * (aAmplitude * pow(i / 255.0f, aExponent) + aOffset));
|
|
val = std::min(255, val);
|
|
val = std::max(0, val);
|
|
aTable[i] = val;
|
|
}
|
|
}
|
|
|
|
FilterNodeConvolveMatrixSoftware::FilterNodeConvolveMatrixSoftware()
|
|
: mDivisor(0)
|
|
, mBias(0)
|
|
, mEdgeMode(EDGE_MODE_DUPLICATE)
|
|
, mPreserveAlpha(false)
|
|
{}
|
|
|
|
int32_t
|
|
FilterNodeConvolveMatrixSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_CONVOLVE_MATRIX_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeConvolveMatrixSoftware::SetAttribute(uint32_t aIndex,
|
|
const IntSize &aKernelSize)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_CONVOLVE_MATRIX_KERNEL_SIZE);
|
|
mKernelSize = aKernelSize;
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeConvolveMatrixSoftware::SetAttribute(uint32_t aIndex,
|
|
const Float *aMatrix,
|
|
uint32_t aSize)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_CONVOLVE_MATRIX_KERNEL_MATRIX);
|
|
mKernelMatrix = std::vector<Float>(aMatrix, aMatrix + aSize);
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeConvolveMatrixSoftware::SetAttribute(uint32_t aIndex, Float aValue)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_CONVOLVE_MATRIX_DIVISOR:
|
|
mDivisor = aValue;
|
|
break;
|
|
case ATT_CONVOLVE_MATRIX_BIAS:
|
|
mBias = aValue;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeConvolveMatrixSoftware::SetAttribute(uint32_t aIndex, const Size &aKernelUnitLength)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_CONVOLVE_MATRIX_KERNEL_UNIT_LENGTH:
|
|
mKernelUnitLength = aKernelUnitLength;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeConvolveMatrixSoftware::SetAttribute(uint32_t aIndex,
|
|
const IntPoint &aTarget)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_CONVOLVE_MATRIX_TARGET);
|
|
mTarget = aTarget;
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeConvolveMatrixSoftware::SetAttribute(uint32_t aIndex,
|
|
const IntRect &aSourceRect)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_CONVOLVE_MATRIX_SOURCE_RECT);
|
|
mSourceRect = aSourceRect;
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeConvolveMatrixSoftware::SetAttribute(uint32_t aIndex,
|
|
uint32_t aEdgeMode)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_CONVOLVE_MATRIX_EDGE_MODE);
|
|
mEdgeMode = static_cast<ConvolveMatrixEdgeMode>(aEdgeMode);
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeConvolveMatrixSoftware::SetAttribute(uint32_t aIndex,
|
|
bool aPreserveAlpha)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_CONVOLVE_MATRIX_PRESERVE_ALPHA);
|
|
mPreserveAlpha = aPreserveAlpha;
|
|
Invalidate();
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
static bool sColorSamplingAccessControlEnabled = false;
|
|
static uint8_t* sColorSamplingAccessControlStart = nullptr;
|
|
static uint8_t* sColorSamplingAccessControlEnd = nullptr;
|
|
|
|
struct DebugOnlyAutoColorSamplingAccessControl
|
|
{
|
|
DebugOnlyAutoColorSamplingAccessControl(DataSourceSurface* aSurface)
|
|
{
|
|
sColorSamplingAccessControlStart = aSurface->GetData();
|
|
sColorSamplingAccessControlEnd = sColorSamplingAccessControlStart +
|
|
aSurface->Stride() * aSurface->GetSize().height;
|
|
sColorSamplingAccessControlEnabled = true;
|
|
}
|
|
|
|
~DebugOnlyAutoColorSamplingAccessControl()
|
|
{
|
|
sColorSamplingAccessControlEnabled = false;
|
|
}
|
|
};
|
|
|
|
static inline void
|
|
DebugOnlyCheckColorSamplingAccess(const uint8_t* aSampleAddress)
|
|
{
|
|
if (sColorSamplingAccessControlEnabled) {
|
|
MOZ_ASSERT(aSampleAddress >= sColorSamplingAccessControlStart, "accessing before start");
|
|
MOZ_ASSERT(aSampleAddress < sColorSamplingAccessControlEnd, "accessing after end");
|
|
}
|
|
}
|
|
#else
|
|
typedef DebugOnly<DataSourceSurface*> DebugOnlyAutoColorSamplingAccessControl;
|
|
#define DebugOnlyCheckColorSamplingAccess(address)
|
|
#endif
|
|
|
|
static inline uint8_t
|
|
ColorComponentAtPoint(const uint8_t *aData, int32_t aStride, int32_t x, int32_t y, size_t bpp, ptrdiff_t c)
|
|
{
|
|
DebugOnlyCheckColorSamplingAccess(&aData[y * aStride + bpp * x + c]);
|
|
return aData[y * aStride + bpp * x + c];
|
|
}
|
|
|
|
static inline int32_t
|
|
ColorAtPoint(const uint8_t *aData, int32_t aStride, int32_t x, int32_t y)
|
|
{
|
|
DebugOnlyCheckColorSamplingAccess(aData + y * aStride + 4 * x);
|
|
return *(uint32_t*)(aData + y * aStride + 4 * x);
|
|
}
|
|
|
|
// Accepts fractional x & y and does bilinear interpolation.
|
|
// Only call this if the pixel (floor(x)+1, floor(y)+1) is accessible.
|
|
static inline uint8_t
|
|
ColorComponentAtPoint(const uint8_t *aData, int32_t aStride, Float x, Float y, size_t bpp, ptrdiff_t c)
|
|
{
|
|
const uint32_t f = 256;
|
|
const int32_t lx = floor(x);
|
|
const int32_t ly = floor(y);
|
|
const int32_t tux = uint32_t((x - lx) * f);
|
|
const int32_t tlx = f - tux;
|
|
const int32_t tuy = uint32_t((y - ly) * f);
|
|
const int32_t tly = f - tuy;
|
|
const uint8_t &cll = ColorComponentAtPoint(aData, aStride, lx, ly, bpp, c);
|
|
const uint8_t &cul = ColorComponentAtPoint(aData, aStride, lx + 1, ly, bpp, c);
|
|
const uint8_t &clu = ColorComponentAtPoint(aData, aStride, lx, ly + 1, bpp, c);
|
|
const uint8_t &cuu = ColorComponentAtPoint(aData, aStride, lx + 1, ly + 1, bpp, c);
|
|
return ((cll * tlx + cul * tux) * tly +
|
|
(clu * tlx + cuu * tux) * tuy + f * f / 2) / (f * f);
|
|
}
|
|
|
|
static inline uint32_t
|
|
ColorAtPoint(const uint8_t *aData, int32_t aStride, Float x, Float y)
|
|
{
|
|
return ColorComponentAtPoint(aData, aStride, x, y, 4, 0) |
|
|
(ColorComponentAtPoint(aData, aStride, x, y, 4, 1) << 8) |
|
|
(ColorComponentAtPoint(aData, aStride, x, y, 4, 2) << 16) |
|
|
(ColorComponentAtPoint(aData, aStride, x, y, 4, 3) << 24);
|
|
}
|
|
|
|
static int32_t
|
|
ClampToNonZero(int32_t a)
|
|
{
|
|
return a * (a >= 0);
|
|
}
|
|
|
|
template<typename CoordType>
|
|
static void
|
|
ConvolvePixel(const uint8_t *aSourceData,
|
|
uint8_t *aTargetData,
|
|
int32_t aWidth, int32_t aHeight,
|
|
int32_t aSourceStride, int32_t aTargetStride,
|
|
int32_t aX, int32_t aY,
|
|
const int32_t *aKernel,
|
|
int32_t aBias, int32_t shiftL, int32_t shiftR,
|
|
bool aPreserveAlpha,
|
|
int32_t aOrderX, int32_t aOrderY,
|
|
int32_t aTargetX, int32_t aTargetY,
|
|
CoordType aKernelUnitLengthX,
|
|
CoordType aKernelUnitLengthY)
|
|
{
|
|
int32_t sum[4] = {0, 0, 0, 0};
|
|
int32_t offsets[4] = { B8G8R8A8_COMPONENT_BYTEOFFSET_R,
|
|
B8G8R8A8_COMPONENT_BYTEOFFSET_G,
|
|
B8G8R8A8_COMPONENT_BYTEOFFSET_B,
|
|
B8G8R8A8_COMPONENT_BYTEOFFSET_A };
|
|
int32_t channels = aPreserveAlpha ? 3 : 4;
|
|
int32_t roundingAddition = shiftL == 0 ? 0 : 1 << (shiftL - 1);
|
|
|
|
for (int32_t y = 0; y < aOrderY; y++) {
|
|
CoordType sampleY = aY + (y - aTargetY) * aKernelUnitLengthY;
|
|
for (int32_t x = 0; x < aOrderX; x++) {
|
|
CoordType sampleX = aX + (x - aTargetX) * aKernelUnitLengthX;
|
|
for (int32_t i = 0; i < channels; i++) {
|
|
sum[i] += aKernel[aOrderX * y + x] *
|
|
ColorComponentAtPoint(aSourceData, aSourceStride,
|
|
sampleX, sampleY, 4, offsets[i]);
|
|
}
|
|
}
|
|
}
|
|
for (int32_t i = 0; i < channels; i++) {
|
|
int32_t clamped = umin(ClampToNonZero(sum[i] + aBias), 255 << shiftL >> shiftR);
|
|
aTargetData[aY * aTargetStride + 4 * aX + offsets[i]] =
|
|
(clamped + roundingAddition) << shiftR >> shiftL;
|
|
}
|
|
if (aPreserveAlpha) {
|
|
aTargetData[aY * aTargetStride + 4 * aX + B8G8R8A8_COMPONENT_BYTEOFFSET_A] =
|
|
aSourceData[aY * aSourceStride + 4 * aX + B8G8R8A8_COMPONENT_BYTEOFFSET_A];
|
|
}
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeConvolveMatrixSoftware::Render(const IntRect& aRect)
|
|
{
|
|
if (mKernelUnitLength.width == floor(mKernelUnitLength.width) &&
|
|
mKernelUnitLength.height == floor(mKernelUnitLength.height)) {
|
|
return DoRender(aRect, (int32_t)mKernelUnitLength.width, (int32_t)mKernelUnitLength.height);
|
|
}
|
|
return DoRender(aRect, mKernelUnitLength.width, mKernelUnitLength.height);
|
|
}
|
|
|
|
static std::vector<Float>
|
|
ReversedVector(const std::vector<Float> &aVector)
|
|
{
|
|
size_t length = aVector.size();
|
|
std::vector<Float> result(length, 0);
|
|
for (size_t i = 0; i < length; i++) {
|
|
result[length - 1 - i] = aVector[i];
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static std::vector<Float>
|
|
ScaledVector(const std::vector<Float> &aVector, Float aDivisor)
|
|
{
|
|
size_t length = aVector.size();
|
|
std::vector<Float> result(length, 0);
|
|
for (size_t i = 0; i < length; i++) {
|
|
result[i] = aVector[i] / aDivisor;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static Float
|
|
MaxVectorSum(const std::vector<Float> &aVector)
|
|
{
|
|
Float sum = 0;
|
|
size_t length = aVector.size();
|
|
for (size_t i = 0; i < length; i++) {
|
|
if (aVector[i] > 0) {
|
|
sum += aVector[i];
|
|
}
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
// Returns shiftL and shiftR in such a way that
|
|
// a << shiftL >> shiftR is roughly a * aFloat.
|
|
static void
|
|
TranslateDoubleToShifts(double aDouble, int32_t &aShiftL, int32_t &aShiftR)
|
|
{
|
|
aShiftL = 0;
|
|
aShiftR = 0;
|
|
if (aDouble <= 0) {
|
|
MOZ_CRASH();
|
|
}
|
|
if (aDouble < 1) {
|
|
while (1 << (aShiftR + 1) < 1 / aDouble) {
|
|
aShiftR++;
|
|
}
|
|
} else {
|
|
while (1 << (aShiftL + 1) < aDouble) {
|
|
aShiftL++;
|
|
}
|
|
}
|
|
}
|
|
|
|
template<typename CoordType>
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeConvolveMatrixSoftware::DoRender(const IntRect& aRect,
|
|
CoordType aKernelUnitLengthX,
|
|
CoordType aKernelUnitLengthY)
|
|
{
|
|
if (mKernelSize.width <= 0 || mKernelSize.height <= 0 ||
|
|
mKernelMatrix.size() != uint32_t(mKernelSize.width * mKernelSize.height) ||
|
|
!IntRect(IntPoint(0, 0), mKernelSize).Contains(mTarget) ||
|
|
mDivisor == 0) {
|
|
return Factory::CreateDataSourceSurface(aRect.Size(), SurfaceFormat::B8G8R8A8);
|
|
}
|
|
|
|
IntRect srcRect = InflatedSourceRect(aRect);
|
|
|
|
// Inflate the source rect by another pixel because the bilinear filtering in
|
|
// ColorComponentAtPoint may want to access the margins.
|
|
srcRect.Inflate(1);
|
|
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_CONVOLVE_MATRIX_IN, srcRect, NEED_COLOR_CHANNELS, mEdgeMode, &mSourceRect);
|
|
|
|
if (!input) {
|
|
return nullptr;
|
|
}
|
|
|
|
DebugOnlyAutoColorSamplingAccessControl accessControl(input);
|
|
|
|
RefPtr<DataSourceSurface> target =
|
|
Factory::CreateDataSourceSurface(aRect.Size(), SurfaceFormat::B8G8R8A8);
|
|
if (!target) {
|
|
return nullptr;
|
|
}
|
|
ClearDataSourceSurface(target);
|
|
|
|
IntPoint offset = aRect.TopLeft() - srcRect.TopLeft();
|
|
|
|
uint8_t* sourceData = DataAtOffset(input, offset);
|
|
int32_t sourceStride = input->Stride();
|
|
uint8_t* targetData = target->GetData();
|
|
int32_t targetStride = target->Stride();
|
|
|
|
// Why exactly are we reversing the kernel?
|
|
std::vector<Float> kernel = ReversedVector(mKernelMatrix);
|
|
kernel = ScaledVector(kernel, mDivisor);
|
|
Float maxResultAbs = std::max(MaxVectorSum(kernel) + mBias,
|
|
MaxVectorSum(ScaledVector(kernel, -1)) - mBias);
|
|
maxResultAbs = std::max(maxResultAbs, 1.0f);
|
|
|
|
double idealFactor = INT32_MAX / 2.0 / maxResultAbs / 255.0 * 0.999;
|
|
MOZ_ASSERT(255.0 * maxResultAbs * idealFactor <= INT32_MAX / 2.0, "badly chosen float-to-int scale");
|
|
int32_t shiftL, shiftR;
|
|
TranslateDoubleToShifts(idealFactor, shiftL, shiftR);
|
|
double factorFromShifts = Float(1 << shiftL) / Float(1 << shiftR);
|
|
MOZ_ASSERT(255.0 * maxResultAbs * factorFromShifts <= INT32_MAX / 2.0, "badly chosen float-to-int scale");
|
|
|
|
int32_t* intKernel = new int32_t[kernel.size()];
|
|
for (size_t i = 0; i < kernel.size(); i++) {
|
|
intKernel[i] = NS_lround(kernel[i] * factorFromShifts);
|
|
}
|
|
int32_t bias = NS_lround(mBias * 255 * factorFromShifts);
|
|
|
|
for (int32_t y = 0; y < aRect.height; y++) {
|
|
for (int32_t x = 0; x < aRect.width; x++) {
|
|
ConvolvePixel(sourceData, targetData,
|
|
aRect.width, aRect.height, sourceStride, targetStride,
|
|
x, y, intKernel, bias, shiftL, shiftR, mPreserveAlpha,
|
|
mKernelSize.width, mKernelSize.height, mTarget.x, mTarget.y,
|
|
aKernelUnitLengthX, aKernelUnitLengthY);
|
|
}
|
|
}
|
|
delete[] intKernel;
|
|
|
|
return target;
|
|
}
|
|
|
|
void
|
|
FilterNodeConvolveMatrixSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_CONVOLVE_MATRIX_IN, InflatedSourceRect(aRect));
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeConvolveMatrixSoftware::InflatedSourceRect(const IntRect &aDestRect)
|
|
{
|
|
if (aDestRect.IsEmpty()) {
|
|
return IntRect();
|
|
}
|
|
|
|
IntMargin margin;
|
|
margin.left = ceil(mTarget.x * mKernelUnitLength.width);
|
|
margin.top = ceil(mTarget.y * mKernelUnitLength.height);
|
|
margin.right = ceil((mKernelSize.width - mTarget.x - 1) * mKernelUnitLength.width);
|
|
margin.bottom = ceil((mKernelSize.height - mTarget.y - 1) * mKernelUnitLength.height);
|
|
|
|
IntRect srcRect = aDestRect;
|
|
srcRect.Inflate(margin);
|
|
return srcRect;
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeConvolveMatrixSoftware::InflatedDestRect(const IntRect &aSourceRect)
|
|
{
|
|
if (aSourceRect.IsEmpty()) {
|
|
return IntRect();
|
|
}
|
|
|
|
IntMargin margin;
|
|
margin.left = ceil((mKernelSize.width - mTarget.x - 1) * mKernelUnitLength.width);
|
|
margin.top = ceil((mKernelSize.height - mTarget.y - 1) * mKernelUnitLength.height);
|
|
margin.right = ceil(mTarget.x * mKernelUnitLength.width);
|
|
margin.bottom = ceil(mTarget.y * mKernelUnitLength.height);
|
|
|
|
IntRect destRect = aSourceRect;
|
|
destRect.Inflate(margin);
|
|
return destRect;
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeConvolveMatrixSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
IntRect srcRequest = InflatedSourceRect(aRect);
|
|
IntRect srcOutput = GetInputRectInRect(IN_COLOR_MATRIX_IN, srcRequest);
|
|
return InflatedDestRect(srcOutput).Intersect(aRect);
|
|
}
|
|
|
|
FilterNodeDisplacementMapSoftware::FilterNodeDisplacementMapSoftware()
|
|
: mScale(0.0f)
|
|
, mChannelX(COLOR_CHANNEL_R)
|
|
, mChannelY(COLOR_CHANNEL_G)
|
|
{}
|
|
|
|
int32_t
|
|
FilterNodeDisplacementMapSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_DISPLACEMENT_MAP_IN: return 0;
|
|
case IN_DISPLACEMENT_MAP_IN2: return 1;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeDisplacementMapSoftware::SetAttribute(uint32_t aIndex,
|
|
Float aScale)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_DISPLACEMENT_MAP_SCALE);
|
|
mScale = aScale;
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeDisplacementMapSoftware::SetAttribute(uint32_t aIndex, uint32_t aValue)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_DISPLACEMENT_MAP_X_CHANNEL:
|
|
mChannelX = static_cast<ColorChannel>(aValue);
|
|
break;
|
|
case ATT_DISPLACEMENT_MAP_Y_CHANNEL:
|
|
mChannelY = static_cast<ColorChannel>(aValue);
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeDisplacementMapSoftware::Render(const IntRect& aRect)
|
|
{
|
|
IntRect srcRect = InflatedSourceOrDestRect(aRect);
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_DISPLACEMENT_MAP_IN, srcRect, NEED_COLOR_CHANNELS);
|
|
RefPtr<DataSourceSurface> map =
|
|
GetInputDataSourceSurface(IN_DISPLACEMENT_MAP_IN2, aRect, NEED_COLOR_CHANNELS);
|
|
RefPtr<DataSourceSurface> target =
|
|
Factory::CreateDataSourceSurface(aRect.Size(), SurfaceFormat::B8G8R8A8);
|
|
if (!input || !map || !target) {
|
|
return nullptr;
|
|
}
|
|
|
|
IntPoint offset = aRect.TopLeft() - srcRect.TopLeft();
|
|
|
|
uint8_t* sourceData = DataAtOffset(input, offset);
|
|
int32_t sourceStride = input->Stride();
|
|
uint8_t* mapData = map->GetData();
|
|
int32_t mapStride = map->Stride();
|
|
uint8_t* targetData = target->GetData();
|
|
int32_t targetStride = target->Stride();
|
|
|
|
static const ptrdiff_t channelMap[4] = {
|
|
B8G8R8A8_COMPONENT_BYTEOFFSET_R,
|
|
B8G8R8A8_COMPONENT_BYTEOFFSET_G,
|
|
B8G8R8A8_COMPONENT_BYTEOFFSET_B,
|
|
B8G8R8A8_COMPONENT_BYTEOFFSET_A };
|
|
uint16_t xChannel = channelMap[mChannelX];
|
|
uint16_t yChannel = channelMap[mChannelY];
|
|
|
|
float scaleOver255 = mScale / 255.0f;
|
|
float scaleAdjustment = -0.5f * mScale;
|
|
|
|
for (int32_t y = 0; y < aRect.height; y++) {
|
|
for (int32_t x = 0; x < aRect.width; x++) {
|
|
uint32_t mapIndex = y * mapStride + 4 * x;
|
|
uint32_t targIndex = y * targetStride + 4 * x;
|
|
int32_t sourceX = x +
|
|
scaleOver255 * mapData[mapIndex + xChannel] + scaleAdjustment;
|
|
int32_t sourceY = y +
|
|
scaleOver255 * mapData[mapIndex + yChannel] + scaleAdjustment;
|
|
*(uint32_t*)(targetData + targIndex) =
|
|
ColorAtPoint(sourceData, sourceStride, sourceX, sourceY);
|
|
}
|
|
}
|
|
|
|
return target;
|
|
}
|
|
|
|
void
|
|
FilterNodeDisplacementMapSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_DISPLACEMENT_MAP_IN, InflatedSourceOrDestRect(aRect));
|
|
RequestInputRect(IN_DISPLACEMENT_MAP_IN2, aRect);
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeDisplacementMapSoftware::InflatedSourceOrDestRect(const IntRect &aDestOrSourceRect)
|
|
{
|
|
IntRect sourceOrDestRect = aDestOrSourceRect;
|
|
sourceOrDestRect.Inflate(ceil(fabs(mScale) / 2));
|
|
return sourceOrDestRect;
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeDisplacementMapSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
IntRect srcRequest = InflatedSourceOrDestRect(aRect);
|
|
IntRect srcOutput = GetInputRectInRect(IN_DISPLACEMENT_MAP_IN, srcRequest);
|
|
return InflatedSourceOrDestRect(srcOutput).Intersect(aRect);
|
|
}
|
|
|
|
FilterNodeTurbulenceSoftware::FilterNodeTurbulenceSoftware()
|
|
: mNumOctaves(0)
|
|
, mSeed(0)
|
|
, mStitchable(false)
|
|
, mType(TURBULENCE_TYPE_TURBULENCE)
|
|
{}
|
|
|
|
int32_t
|
|
FilterNodeTurbulenceSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
void
|
|
FilterNodeTurbulenceSoftware::SetAttribute(uint32_t aIndex, const Size &aBaseFrequency)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_TURBULENCE_BASE_FREQUENCY:
|
|
mBaseFrequency = aBaseFrequency;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
break;
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeTurbulenceSoftware::SetAttribute(uint32_t aIndex, const IntRect &aRect)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_TURBULENCE_RECT:
|
|
mRenderRect = aRect;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
break;
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeTurbulenceSoftware::SetAttribute(uint32_t aIndex, bool aStitchable)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_TURBULENCE_STITCHABLE);
|
|
mStitchable = aStitchable;
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeTurbulenceSoftware::SetAttribute(uint32_t aIndex, uint32_t aValue)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_TURBULENCE_NUM_OCTAVES:
|
|
mNumOctaves = aValue;
|
|
break;
|
|
case ATT_TURBULENCE_SEED:
|
|
mSeed = aValue;
|
|
break;
|
|
case ATT_TURBULENCE_TYPE:
|
|
mType = static_cast<TurbulenceType>(aValue);
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
break;
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeTurbulenceSoftware::Render(const IntRect& aRect)
|
|
{
|
|
return FilterProcessing::RenderTurbulence(
|
|
aRect.Size(), aRect.TopLeft(), mBaseFrequency,
|
|
mSeed, mNumOctaves, mType, mStitchable, Rect(mRenderRect));
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeTurbulenceSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
return aRect.Intersect(mRenderRect);
|
|
}
|
|
|
|
FilterNodeArithmeticCombineSoftware::FilterNodeArithmeticCombineSoftware()
|
|
: mK1(0), mK2(0), mK3(0), mK4(0)
|
|
{
|
|
}
|
|
|
|
int32_t
|
|
FilterNodeArithmeticCombineSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_ARITHMETIC_COMBINE_IN: return 0;
|
|
case IN_ARITHMETIC_COMBINE_IN2: return 1;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeArithmeticCombineSoftware::SetAttribute(uint32_t aIndex,
|
|
const Float* aFloat,
|
|
uint32_t aSize)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_ARITHMETIC_COMBINE_COEFFICIENTS);
|
|
MOZ_ASSERT(aSize == 4);
|
|
|
|
mK1 = aFloat[0];
|
|
mK2 = aFloat[1];
|
|
mK3 = aFloat[2];
|
|
mK4 = aFloat[3];
|
|
|
|
Invalidate();
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeArithmeticCombineSoftware::Render(const IntRect& aRect)
|
|
{
|
|
RefPtr<DataSourceSurface> input1 =
|
|
GetInputDataSourceSurface(IN_ARITHMETIC_COMBINE_IN, aRect, NEED_COLOR_CHANNELS);
|
|
RefPtr<DataSourceSurface> input2 =
|
|
GetInputDataSourceSurface(IN_ARITHMETIC_COMBINE_IN2, aRect, NEED_COLOR_CHANNELS);
|
|
if (!input1 && !input2) {
|
|
return nullptr;
|
|
}
|
|
|
|
// If one input is null, treat it as transparent by adjusting the factors.
|
|
Float k1 = mK1, k2 = mK2, k3 = mK3, k4 = mK4;
|
|
if (!input1) {
|
|
k1 = 0.0f;
|
|
k2 = 0.0f;
|
|
input1 = input2;
|
|
}
|
|
|
|
if (!input2) {
|
|
k1 = 0.0f;
|
|
k3 = 0.0f;
|
|
input2 = input1;
|
|
}
|
|
|
|
return FilterProcessing::ApplyArithmeticCombine(input1, input2, k1, k2, k3, k4);
|
|
}
|
|
|
|
void
|
|
FilterNodeArithmeticCombineSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_ARITHMETIC_COMBINE_IN, aRect);
|
|
RequestInputRect(IN_ARITHMETIC_COMBINE_IN2, aRect);
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeArithmeticCombineSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
if (mK4 > 0.0f) {
|
|
return aRect;
|
|
}
|
|
IntRect rectFrom1 = GetInputRectInRect(IN_ARITHMETIC_COMBINE_IN, aRect).Intersect(aRect);
|
|
IntRect rectFrom2 = GetInputRectInRect(IN_ARITHMETIC_COMBINE_IN2, aRect).Intersect(aRect);
|
|
IntRect result;
|
|
if (mK1 > 0.0f) {
|
|
result = rectFrom1.Intersect(rectFrom2);
|
|
}
|
|
if (mK2 > 0.0f) {
|
|
result = result.Union(rectFrom1);
|
|
}
|
|
if (mK3 > 0.0f) {
|
|
result = result.Union(rectFrom2);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
FilterNodeCompositeSoftware::FilterNodeCompositeSoftware()
|
|
: mOperator(COMPOSITE_OPERATOR_OVER)
|
|
{}
|
|
|
|
int32_t
|
|
FilterNodeCompositeSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
return aInputEnumIndex - IN_COMPOSITE_IN_START;
|
|
}
|
|
|
|
void
|
|
FilterNodeCompositeSoftware::SetAttribute(uint32_t aIndex, uint32_t aCompositeOperator)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_COMPOSITE_OPERATOR);
|
|
mOperator = static_cast<CompositeOperator>(aCompositeOperator);
|
|
Invalidate();
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeCompositeSoftware::Render(const IntRect& aRect)
|
|
{
|
|
RefPtr<DataSourceSurface> start =
|
|
GetInputDataSourceSurface(IN_COMPOSITE_IN_START, aRect, NEED_COLOR_CHANNELS);
|
|
RefPtr<DataSourceSurface> dest =
|
|
Factory::CreateDataSourceSurface(aRect.Size(), SurfaceFormat::B8G8R8A8);
|
|
if (!dest) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (start) {
|
|
CopyRect(start, dest, aRect - aRect.TopLeft(), IntPoint());
|
|
} else {
|
|
ClearDataSourceSurface(dest);
|
|
}
|
|
|
|
for (size_t inputIndex = 1; inputIndex < NumberOfSetInputs(); inputIndex++) {
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_COMPOSITE_IN_START + inputIndex, aRect, NEED_COLOR_CHANNELS);
|
|
if (input) {
|
|
FilterProcessing::ApplyComposition(input, dest, mOperator);
|
|
} else {
|
|
// We need to treat input as transparent. Depending on the composite
|
|
// operator, different things happen to dest.
|
|
switch (mOperator) {
|
|
case COMPOSITE_OPERATOR_OVER:
|
|
case COMPOSITE_OPERATOR_ATOP:
|
|
case COMPOSITE_OPERATOR_XOR:
|
|
// dest is unchanged.
|
|
break;
|
|
case COMPOSITE_OPERATOR_OUT:
|
|
// dest is now transparent, but it can become non-transparent again
|
|
// when compositing additional inputs.
|
|
ClearDataSourceSurface(dest);
|
|
break;
|
|
case COMPOSITE_OPERATOR_IN:
|
|
// Transparency always wins. We're completely transparent now and
|
|
// no additional input can get rid of that transparency.
|
|
return nullptr;
|
|
}
|
|
}
|
|
}
|
|
return dest;
|
|
}
|
|
|
|
void
|
|
FilterNodeCompositeSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
for (size_t inputIndex = 0; inputIndex < NumberOfSetInputs(); inputIndex++) {
|
|
RequestInputRect(IN_COMPOSITE_IN_START + inputIndex, aRect);
|
|
}
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeCompositeSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
IntRect rect;
|
|
for (size_t inputIndex = 0; inputIndex < NumberOfSetInputs(); inputIndex++) {
|
|
IntRect inputRect = GetInputRectInRect(IN_COMPOSITE_IN_START + inputIndex, aRect);
|
|
if (mOperator == COMPOSITE_OPERATOR_IN && inputIndex > 0) {
|
|
rect = rect.Intersect(inputRect);
|
|
} else {
|
|
rect = rect.Union(inputRect);
|
|
}
|
|
}
|
|
return rect;
|
|
}
|
|
|
|
int32_t
|
|
FilterNodeBlurXYSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_GAUSSIAN_BLUR_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeBlurXYSoftware::Render(const IntRect& aRect)
|
|
{
|
|
Size sigmaXY = StdDeviationXY();
|
|
IntSize d = AlphaBoxBlur::CalculateBlurRadius(Point(sigmaXY.width, sigmaXY.height));
|
|
|
|
if (d.width == 0 && d.height == 0) {
|
|
return GetInputDataSourceSurface(IN_GAUSSIAN_BLUR_IN, aRect);
|
|
}
|
|
|
|
IntRect srcRect = InflatedSourceOrDestRect(aRect);
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_GAUSSIAN_BLUR_IN, srcRect);
|
|
if (!input) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<DataSourceSurface> target;
|
|
Rect r(0, 0, srcRect.width, srcRect.height);
|
|
|
|
if (input->GetFormat() == SurfaceFormat::A8) {
|
|
target = Factory::CreateDataSourceSurface(srcRect.Size(), SurfaceFormat::A8);
|
|
CopyRect(input, target, IntRect(IntPoint(), input->GetSize()), IntPoint());
|
|
AlphaBoxBlur blur(r, target->Stride(), sigmaXY.width, sigmaXY.height);
|
|
blur.Blur(target->GetData());
|
|
} else {
|
|
RefPtr<DataSourceSurface> channel0, channel1, channel2, channel3;
|
|
FilterProcessing::SeparateColorChannels(input, channel0, channel1, channel2, channel3);
|
|
AlphaBoxBlur blur(r, channel0->Stride(), sigmaXY.width, sigmaXY.height);
|
|
blur.Blur(channel0->GetData());
|
|
blur.Blur(channel1->GetData());
|
|
blur.Blur(channel2->GetData());
|
|
blur.Blur(channel3->GetData());
|
|
target = FilterProcessing::CombineColorChannels(channel0, channel1, channel2, channel3);
|
|
}
|
|
|
|
return GetDataSurfaceInRect(target, srcRect, aRect, EDGE_MODE_NONE);
|
|
}
|
|
|
|
void
|
|
FilterNodeBlurXYSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_GAUSSIAN_BLUR_IN, InflatedSourceOrDestRect(aRect));
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeBlurXYSoftware::InflatedSourceOrDestRect(const IntRect &aDestRect)
|
|
{
|
|
Size sigmaXY = StdDeviationXY();
|
|
IntSize d = AlphaBoxBlur::CalculateBlurRadius(Point(sigmaXY.width, sigmaXY.height));
|
|
IntRect srcRect = aDestRect;
|
|
srcRect.Inflate(d);
|
|
return srcRect;
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeBlurXYSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
IntRect srcRequest = InflatedSourceOrDestRect(aRect);
|
|
IntRect srcOutput = GetInputRectInRect(IN_GAUSSIAN_BLUR_IN, srcRequest);
|
|
return InflatedSourceOrDestRect(srcOutput).Intersect(aRect);
|
|
}
|
|
|
|
FilterNodeGaussianBlurSoftware::FilterNodeGaussianBlurSoftware()
|
|
: mStdDeviation(0)
|
|
{}
|
|
|
|
void
|
|
FilterNodeGaussianBlurSoftware::SetAttribute(uint32_t aIndex,
|
|
float aStdDeviation)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_GAUSSIAN_BLUR_STD_DEVIATION:
|
|
mStdDeviation = std::max(0.0f, aStdDeviation);
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
Size
|
|
FilterNodeGaussianBlurSoftware::StdDeviationXY()
|
|
{
|
|
return Size(mStdDeviation, mStdDeviation);
|
|
}
|
|
|
|
FilterNodeDirectionalBlurSoftware::FilterNodeDirectionalBlurSoftware()
|
|
: mBlurDirection(BLUR_DIRECTION_X)
|
|
{}
|
|
|
|
void
|
|
FilterNodeDirectionalBlurSoftware::SetAttribute(uint32_t aIndex,
|
|
Float aStdDeviation)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_DIRECTIONAL_BLUR_STD_DEVIATION:
|
|
mStdDeviation = std::max(0.0f, aStdDeviation);
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
void
|
|
FilterNodeDirectionalBlurSoftware::SetAttribute(uint32_t aIndex,
|
|
uint32_t aBlurDirection)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_DIRECTIONAL_BLUR_DIRECTION:
|
|
mBlurDirection = (BlurDirection)aBlurDirection;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
Size
|
|
FilterNodeDirectionalBlurSoftware::StdDeviationXY()
|
|
{
|
|
float sigmaX = mBlurDirection == BLUR_DIRECTION_X ? mStdDeviation : 0;
|
|
float sigmaY = mBlurDirection == BLUR_DIRECTION_Y ? mStdDeviation : 0;
|
|
return Size(sigmaX, sigmaY);
|
|
}
|
|
|
|
int32_t
|
|
FilterNodeCropSoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_CROP_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
FilterNodeCropSoftware::SetAttribute(uint32_t aIndex,
|
|
const Rect &aSourceRect)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_CROP_RECT);
|
|
Rect srcRect = aSourceRect;
|
|
srcRect.Round();
|
|
if (!srcRect.ToIntRect(&mCropRect)) {
|
|
mCropRect = IntRect();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeCropSoftware::Render(const IntRect& aRect)
|
|
{
|
|
return GetInputDataSourceSurface(IN_CROP_IN, aRect.Intersect(mCropRect));
|
|
}
|
|
|
|
void
|
|
FilterNodeCropSoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_CROP_IN, aRect.Intersect(mCropRect));
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeCropSoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
return GetInputRectInRect(IN_CROP_IN, aRect).Intersect(mCropRect);
|
|
}
|
|
|
|
int32_t
|
|
FilterNodePremultiplySoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_PREMULTIPLY_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodePremultiplySoftware::Render(const IntRect& aRect)
|
|
{
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_PREMULTIPLY_IN, aRect);
|
|
return input ? Premultiply(input) : nullptr;
|
|
}
|
|
|
|
void
|
|
FilterNodePremultiplySoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_PREMULTIPLY_IN, aRect);
|
|
}
|
|
|
|
IntRect
|
|
FilterNodePremultiplySoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
return GetInputRectInRect(IN_PREMULTIPLY_IN, aRect);
|
|
}
|
|
|
|
int32_t
|
|
FilterNodeUnpremultiplySoftware::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_UNPREMULTIPLY_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeUnpremultiplySoftware::Render(const IntRect& aRect)
|
|
{
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_UNPREMULTIPLY_IN, aRect);
|
|
return input ? Unpremultiply(input) : nullptr;
|
|
}
|
|
|
|
void
|
|
FilterNodeUnpremultiplySoftware::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
RequestInputRect(IN_UNPREMULTIPLY_IN, aRect);
|
|
}
|
|
|
|
IntRect
|
|
FilterNodeUnpremultiplySoftware::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
return GetInputRectInRect(IN_UNPREMULTIPLY_IN, aRect);
|
|
}
|
|
|
|
bool
|
|
PointLightSoftware::SetAttribute(uint32_t aIndex, const Point3D &aPoint)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_POINT_LIGHT_POSITION:
|
|
mPosition = aPoint;
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
SpotLightSoftware::SpotLightSoftware()
|
|
: mSpecularFocus(0)
|
|
, mLimitingConeAngle(0)
|
|
, mLimitingConeCos(1)
|
|
{
|
|
}
|
|
|
|
bool
|
|
SpotLightSoftware::SetAttribute(uint32_t aIndex, const Point3D &aPoint)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_SPOT_LIGHT_POSITION:
|
|
mPosition = aPoint;
|
|
break;
|
|
case ATT_SPOT_LIGHT_POINTS_AT:
|
|
mPointsAt = aPoint;
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
SpotLightSoftware::SetAttribute(uint32_t aIndex, Float aValue)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_SPOT_LIGHT_LIMITING_CONE_ANGLE:
|
|
mLimitingConeAngle = aValue;
|
|
break;
|
|
case ATT_SPOT_LIGHT_FOCUS:
|
|
mSpecularFocus = aValue;
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
DistantLightSoftware::DistantLightSoftware()
|
|
: mAzimuth(0)
|
|
, mElevation(0)
|
|
{
|
|
}
|
|
|
|
bool
|
|
DistantLightSoftware::SetAttribute(uint32_t aIndex, Float aValue)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_DISTANT_LIGHT_AZIMUTH:
|
|
mAzimuth = aValue;
|
|
break;
|
|
case ATT_DISTANT_LIGHT_ELEVATION:
|
|
mElevation = aValue;
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static inline Point3D Normalized(const Point3D &vec) {
|
|
Point3D copy(vec);
|
|
copy.Normalize();
|
|
return copy;
|
|
}
|
|
|
|
template<typename LightType, typename LightingType>
|
|
FilterNodeLightingSoftware<LightType, LightingType>::FilterNodeLightingSoftware(const char* aTypeName)
|
|
: mSurfaceScale(0)
|
|
#if defined(MOZILLA_INTERNAL_API) && (defined(DEBUG) || defined(FORCE_BUILD_REFCNT_LOGGING))
|
|
, mTypeName(aTypeName)
|
|
#endif
|
|
{}
|
|
|
|
template<typename LightType, typename LightingType>
|
|
int32_t
|
|
FilterNodeLightingSoftware<LightType, LightingType>::InputIndex(uint32_t aInputEnumIndex)
|
|
{
|
|
switch (aInputEnumIndex) {
|
|
case IN_LIGHTING_IN: return 0;
|
|
default: return -1;
|
|
}
|
|
}
|
|
|
|
template<typename LightType, typename LightingType>
|
|
void
|
|
FilterNodeLightingSoftware<LightType, LightingType>::SetAttribute(uint32_t aIndex, const Point3D &aPoint)
|
|
{
|
|
if (mLight.SetAttribute(aIndex, aPoint)) {
|
|
Invalidate();
|
|
return;
|
|
}
|
|
MOZ_CRASH();
|
|
}
|
|
|
|
template<typename LightType, typename LightingType>
|
|
void
|
|
FilterNodeLightingSoftware<LightType, LightingType>::SetAttribute(uint32_t aIndex, Float aValue)
|
|
{
|
|
if (mLight.SetAttribute(aIndex, aValue) ||
|
|
mLighting.SetAttribute(aIndex, aValue)) {
|
|
Invalidate();
|
|
return;
|
|
}
|
|
switch (aIndex) {
|
|
case ATT_LIGHTING_SURFACE_SCALE:
|
|
mSurfaceScale = aValue;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
template<typename LightType, typename LightingType>
|
|
void
|
|
FilterNodeLightingSoftware<LightType, LightingType>::SetAttribute(uint32_t aIndex, const Size &aKernelUnitLength)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_LIGHTING_KERNEL_UNIT_LENGTH:
|
|
mKernelUnitLength = aKernelUnitLength;
|
|
break;
|
|
default:
|
|
MOZ_CRASH();
|
|
}
|
|
Invalidate();
|
|
}
|
|
|
|
template<typename LightType, typename LightingType>
|
|
void
|
|
FilterNodeLightingSoftware<LightType, LightingType>::SetAttribute(uint32_t aIndex, const Color &aColor)
|
|
{
|
|
MOZ_ASSERT(aIndex == ATT_LIGHTING_COLOR);
|
|
mColor = aColor;
|
|
Invalidate();
|
|
}
|
|
|
|
template<typename LightType, typename LightingType>
|
|
IntRect
|
|
FilterNodeLightingSoftware<LightType, LightingType>::GetOutputRectInRect(const IntRect& aRect)
|
|
{
|
|
return GetInputRectInRect(IN_LIGHTING_IN, aRect);
|
|
}
|
|
|
|
Point3D
|
|
PointLightSoftware::GetVectorToLight(const Point3D &aTargetPoint)
|
|
{
|
|
return Normalized(mPosition - aTargetPoint);
|
|
}
|
|
|
|
uint32_t
|
|
PointLightSoftware::GetColor(uint32_t aLightColor, const Point3D &aVectorToLight)
|
|
{
|
|
return aLightColor;
|
|
}
|
|
|
|
void
|
|
SpotLightSoftware::Prepare()
|
|
{
|
|
mVectorFromFocusPointToLight = Normalized(mPointsAt - mPosition);
|
|
mLimitingConeCos = std::max<double>(cos(mLimitingConeAngle * M_PI/180.0), 0.0);
|
|
mPowCache.CacheForExponent(mSpecularFocus);
|
|
}
|
|
|
|
Point3D
|
|
SpotLightSoftware::GetVectorToLight(const Point3D &aTargetPoint)
|
|
{
|
|
return Normalized(mPosition - aTargetPoint);
|
|
}
|
|
|
|
uint32_t
|
|
SpotLightSoftware::GetColor(uint32_t aLightColor, const Point3D &aVectorToLight)
|
|
{
|
|
union {
|
|
uint32_t color;
|
|
uint8_t colorC[4];
|
|
};
|
|
color = aLightColor;
|
|
Float dot = -aVectorToLight.DotProduct(mVectorFromFocusPointToLight);
|
|
uint16_t doti = dot * (dot >= 0) * (1 << PowCache::sInputIntPrecisionBits);
|
|
uint32_t tmp = mPowCache.Pow(doti) * (dot >= mLimitingConeCos);
|
|
MOZ_ASSERT(tmp <= (1 << PowCache::sOutputIntPrecisionBits), "pow() result must not exceed 1.0");
|
|
colorC[B8G8R8A8_COMPONENT_BYTEOFFSET_R] = uint8_t((colorC[B8G8R8A8_COMPONENT_BYTEOFFSET_R] * tmp) >> PowCache::sOutputIntPrecisionBits);
|
|
colorC[B8G8R8A8_COMPONENT_BYTEOFFSET_G] = uint8_t((colorC[B8G8R8A8_COMPONENT_BYTEOFFSET_G] * tmp) >> PowCache::sOutputIntPrecisionBits);
|
|
colorC[B8G8R8A8_COMPONENT_BYTEOFFSET_B] = uint8_t((colorC[B8G8R8A8_COMPONENT_BYTEOFFSET_B] * tmp) >> PowCache::sOutputIntPrecisionBits);
|
|
colorC[B8G8R8A8_COMPONENT_BYTEOFFSET_A] = 255;
|
|
return color;
|
|
}
|
|
|
|
void
|
|
DistantLightSoftware::Prepare()
|
|
{
|
|
const double radPerDeg = M_PI / 180.0;
|
|
mVectorToLight.x = cos(mAzimuth * radPerDeg) * cos(mElevation * radPerDeg);
|
|
mVectorToLight.y = sin(mAzimuth * radPerDeg) * cos(mElevation * radPerDeg);
|
|
mVectorToLight.z = sin(mElevation * radPerDeg);
|
|
}
|
|
|
|
Point3D
|
|
DistantLightSoftware::GetVectorToLight(const Point3D &aTargetPoint)
|
|
{
|
|
return mVectorToLight;
|
|
}
|
|
|
|
uint32_t
|
|
DistantLightSoftware::GetColor(uint32_t aLightColor, const Point3D &aVectorToLight)
|
|
{
|
|
return aLightColor;
|
|
}
|
|
|
|
template<typename CoordType>
|
|
static Point3D
|
|
GenerateNormal(const uint8_t *data, int32_t stride,
|
|
int32_t x, int32_t y, float surfaceScale,
|
|
CoordType dx, CoordType dy)
|
|
{
|
|
const uint8_t *index = data + y * stride + x;
|
|
|
|
CoordType zero = 0;
|
|
|
|
// See this for source of constants:
|
|
// http://www.w3.org/TR/SVG11/filters.html#feDiffuseLightingElement
|
|
int16_t normalX =
|
|
-1 * ColorComponentAtPoint(index, stride, -dx, -dy, 1, 0) +
|
|
1 * ColorComponentAtPoint(index, stride, dx, -dy, 1, 0) +
|
|
-2 * ColorComponentAtPoint(index, stride, -dx, zero, 1, 0) +
|
|
2 * ColorComponentAtPoint(index, stride, dx, zero, 1, 0) +
|
|
-1 * ColorComponentAtPoint(index, stride, -dx, dy, 1, 0) +
|
|
1 * ColorComponentAtPoint(index, stride, dx, dy, 1, 0);
|
|
|
|
int16_t normalY =
|
|
-1 * ColorComponentAtPoint(index, stride, -dx, -dy, 1, 0) +
|
|
-2 * ColorComponentAtPoint(index, stride, zero, -dy, 1, 0) +
|
|
-1 * ColorComponentAtPoint(index, stride, dx, -dy, 1, 0) +
|
|
1 * ColorComponentAtPoint(index, stride, -dx, dy, 1, 0) +
|
|
2 * ColorComponentAtPoint(index, stride, zero, dy, 1, 0) +
|
|
1 * ColorComponentAtPoint(index, stride, dx, dy, 1, 0);
|
|
|
|
Point3D normal;
|
|
normal.x = -surfaceScale * normalX / 4.0f;
|
|
normal.y = -surfaceScale * normalY / 4.0f;
|
|
normal.z = 255;
|
|
return Normalized(normal);
|
|
}
|
|
|
|
template<typename LightType, typename LightingType>
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeLightingSoftware<LightType, LightingType>::Render(const IntRect& aRect)
|
|
{
|
|
if (mKernelUnitLength.width == floor(mKernelUnitLength.width) &&
|
|
mKernelUnitLength.height == floor(mKernelUnitLength.height)) {
|
|
return DoRender(aRect, (int32_t)mKernelUnitLength.width, (int32_t)mKernelUnitLength.height);
|
|
}
|
|
return DoRender(aRect, mKernelUnitLength.width, mKernelUnitLength.height);
|
|
}
|
|
|
|
template<typename LightType, typename LightingType>
|
|
void
|
|
FilterNodeLightingSoftware<LightType, LightingType>::RequestFromInputsForRect(const IntRect &aRect)
|
|
{
|
|
IntRect srcRect = aRect;
|
|
srcRect.Inflate(ceil(mKernelUnitLength.width),
|
|
ceil(mKernelUnitLength.height));
|
|
RequestInputRect(IN_LIGHTING_IN, srcRect);
|
|
}
|
|
|
|
template<typename LightType, typename LightingType> template<typename CoordType>
|
|
TemporaryRef<DataSourceSurface>
|
|
FilterNodeLightingSoftware<LightType, LightingType>::DoRender(const IntRect& aRect,
|
|
CoordType aKernelUnitLengthX,
|
|
CoordType aKernelUnitLengthY)
|
|
{
|
|
IntRect srcRect = aRect;
|
|
IntSize size = aRect.Size();
|
|
srcRect.Inflate(ceil(float(aKernelUnitLengthX)),
|
|
ceil(float(aKernelUnitLengthY)));
|
|
|
|
// Inflate the source rect by another pixel because the bilinear filtering in
|
|
// ColorComponentAtPoint may want to access the margins.
|
|
srcRect.Inflate(1);
|
|
|
|
RefPtr<DataSourceSurface> input =
|
|
GetInputDataSourceSurface(IN_LIGHTING_IN, srcRect, CAN_HANDLE_A8,
|
|
EDGE_MODE_DUPLICATE);
|
|
|
|
if (!input) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (input->GetFormat() != SurfaceFormat::A8) {
|
|
input = FilterProcessing::ExtractAlpha(input);
|
|
}
|
|
|
|
DebugOnlyAutoColorSamplingAccessControl accessControl(input);
|
|
|
|
RefPtr<DataSourceSurface> target =
|
|
Factory::CreateDataSourceSurface(size, SurfaceFormat::B8G8R8A8);
|
|
if (!target) {
|
|
return nullptr;
|
|
}
|
|
|
|
IntPoint offset = aRect.TopLeft() - srcRect.TopLeft();
|
|
|
|
uint8_t* sourceData = DataAtOffset(input, offset);
|
|
int32_t sourceStride = input->Stride();
|
|
uint8_t* targetData = target->GetData();
|
|
int32_t targetStride = target->Stride();
|
|
|
|
uint32_t lightColor = ColorToBGRA(mColor);
|
|
mLight.Prepare();
|
|
mLighting.Prepare();
|
|
|
|
for (int32_t y = 0; y < size.height; y++) {
|
|
for (int32_t x = 0; x < size.width; x++) {
|
|
int32_t sourceIndex = y * sourceStride + x;
|
|
int32_t targetIndex = y * targetStride + 4 * x;
|
|
|
|
Point3D normal = GenerateNormal(sourceData, sourceStride,
|
|
x, y, mSurfaceScale,
|
|
aKernelUnitLengthX, aKernelUnitLengthY);
|
|
|
|
IntPoint pointInFilterSpace(aRect.x + x, aRect.y + y);
|
|
Float Z = mSurfaceScale * sourceData[sourceIndex] / 255.0f;
|
|
Point3D pt(pointInFilterSpace.x, pointInFilterSpace.y, Z);
|
|
Point3D rayDir = mLight.GetVectorToLight(pt);
|
|
uint32_t color = mLight.GetColor(lightColor, rayDir);
|
|
|
|
*(uint32_t*)(targetData + targetIndex) = mLighting.LightPixel(normal, rayDir, color);
|
|
}
|
|
}
|
|
|
|
return target;
|
|
}
|
|
|
|
DiffuseLightingSoftware::DiffuseLightingSoftware()
|
|
: mDiffuseConstant(0)
|
|
{
|
|
}
|
|
|
|
bool
|
|
DiffuseLightingSoftware::SetAttribute(uint32_t aIndex, Float aValue)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_DIFFUSE_LIGHTING_DIFFUSE_CONSTANT:
|
|
mDiffuseConstant = aValue;
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
uint32_t
|
|
DiffuseLightingSoftware::LightPixel(const Point3D &aNormal,
|
|
const Point3D &aVectorToLight,
|
|
uint32_t aColor)
|
|
{
|
|
Float dotNL = std::max(0.0f, aNormal.DotProduct(aVectorToLight));
|
|
Float diffuseNL = mDiffuseConstant * dotNL;
|
|
|
|
union {
|
|
uint32_t bgra;
|
|
uint8_t components[4];
|
|
} color = { aColor };
|
|
color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_B] =
|
|
umin(uint32_t(diffuseNL * color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_B]), 255U);
|
|
color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_G] =
|
|
umin(uint32_t(diffuseNL * color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_G]), 255U);
|
|
color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_R] =
|
|
umin(uint32_t(diffuseNL * color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_R]), 255U);
|
|
color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_A] = 255;
|
|
return color.bgra;
|
|
}
|
|
|
|
SpecularLightingSoftware::SpecularLightingSoftware()
|
|
: mSpecularConstant(0)
|
|
, mSpecularExponent(0)
|
|
{
|
|
}
|
|
|
|
bool
|
|
SpecularLightingSoftware::SetAttribute(uint32_t aIndex, Float aValue)
|
|
{
|
|
switch (aIndex) {
|
|
case ATT_SPECULAR_LIGHTING_SPECULAR_CONSTANT:
|
|
mSpecularConstant = std::min(std::max(aValue, 0.0f), 255.0f);
|
|
break;
|
|
case ATT_SPECULAR_LIGHTING_SPECULAR_EXPONENT:
|
|
mSpecularExponent = std::min(std::max(aValue, 1.0f), 128.0f);
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void
|
|
SpecularLightingSoftware::Prepare()
|
|
{
|
|
mPowCache.CacheForExponent(mSpecularExponent);
|
|
mSpecularConstantInt = uint32_t(mSpecularConstant * (1 << 8));
|
|
}
|
|
|
|
uint32_t
|
|
SpecularLightingSoftware::LightPixel(const Point3D &aNormal,
|
|
const Point3D &aVectorToLight,
|
|
uint32_t aColor)
|
|
{
|
|
Point3D vectorToEye(0, 0, 1);
|
|
Point3D halfwayVector = Normalized(aVectorToLight + vectorToEye);
|
|
Float dotNH = aNormal.DotProduct(halfwayVector);
|
|
uint16_t dotNHi = uint16_t(dotNH * (dotNH >= 0) * (1 << PowCache::sInputIntPrecisionBits));
|
|
uint32_t specularNHi = uint32_t(mSpecularConstantInt) * mPowCache.Pow(dotNHi) >> 8;
|
|
|
|
union {
|
|
uint32_t bgra;
|
|
uint8_t components[4];
|
|
} color = { aColor };
|
|
color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_B] =
|
|
umin(
|
|
(specularNHi * color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_B]) >> PowCache::sOutputIntPrecisionBits, 255U);
|
|
color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_G] =
|
|
umin(
|
|
(specularNHi * color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_G]) >> PowCache::sOutputIntPrecisionBits, 255U);
|
|
color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_R] =
|
|
umin(
|
|
(specularNHi * color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_R]) >> PowCache::sOutputIntPrecisionBits, 255U);
|
|
|
|
color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_A] =
|
|
umax(color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_B],
|
|
umax(color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_G],
|
|
color.components[B8G8R8A8_COMPONENT_BYTEOFFSET_R]));
|
|
return color.bgra;
|
|
}
|
|
|
|
} // namespace gfx
|
|
} // namespace mozilla
|