mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-10 11:54:40 +00:00
393 lines
13 KiB
C++
393 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
// Main header first:
|
|
#include "nsSVGMaskFrame.h"
|
|
|
|
// Keep others in (case-insensitive) order:
|
|
#include "gfx2DGlue.h"
|
|
#include "gfxContext.h"
|
|
#include "mozilla/gfx/2D.h"
|
|
#include "mozilla/RefPtr.h"
|
|
#include "nsSVGEffects.h"
|
|
#include "mozilla/dom/SVGMaskElement.h"
|
|
#ifdef BUILD_ARM_NEON
|
|
#include "mozilla/arm.h"
|
|
#include "nsSVGMaskFrameNEON.h"
|
|
#endif
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::dom;
|
|
using namespace mozilla::gfx;
|
|
|
|
// c = n / 255
|
|
// c <= 0.04045 ? c / 12.92 : pow((c + 0.055) / 1.055, 2.4)) * 255 + 0.5
|
|
static const uint8_t gsRGBToLinearRGBMap[256] = {
|
|
0, 0, 0, 0, 0, 0, 0, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 2, 2, 2, 2, 2, 2,
|
|
2, 2, 3, 3, 3, 3, 3, 3,
|
|
4, 4, 4, 4, 4, 5, 5, 5,
|
|
5, 6, 6, 6, 6, 7, 7, 7,
|
|
8, 8, 8, 8, 9, 9, 9, 10,
|
|
10, 10, 11, 11, 12, 12, 12, 13,
|
|
13, 13, 14, 14, 15, 15, 16, 16,
|
|
17, 17, 17, 18, 18, 19, 19, 20,
|
|
20, 21, 22, 22, 23, 23, 24, 24,
|
|
25, 25, 26, 27, 27, 28, 29, 29,
|
|
30, 30, 31, 32, 32, 33, 34, 35,
|
|
35, 36, 37, 37, 38, 39, 40, 41,
|
|
41, 42, 43, 44, 45, 45, 46, 47,
|
|
48, 49, 50, 51, 51, 52, 53, 54,
|
|
55, 56, 57, 58, 59, 60, 61, 62,
|
|
63, 64, 65, 66, 67, 68, 69, 70,
|
|
71, 72, 73, 74, 76, 77, 78, 79,
|
|
80, 81, 82, 84, 85, 86, 87, 88,
|
|
90, 91, 92, 93, 95, 96, 97, 99,
|
|
100, 101, 103, 104, 105, 107, 108, 109,
|
|
111, 112, 114, 115, 116, 118, 119, 121,
|
|
122, 124, 125, 127, 128, 130, 131, 133,
|
|
134, 136, 138, 139, 141, 142, 144, 146,
|
|
147, 149, 151, 152, 154, 156, 157, 159,
|
|
161, 163, 164, 166, 168, 170, 171, 173,
|
|
175, 177, 179, 181, 183, 184, 186, 188,
|
|
190, 192, 194, 196, 198, 200, 202, 204,
|
|
206, 208, 210, 212, 214, 216, 218, 220,
|
|
222, 224, 226, 229, 231, 233, 235, 237,
|
|
239, 242, 244, 246, 248, 250, 253, 255
|
|
};
|
|
|
|
static void
|
|
ComputesRGBLuminanceMask(const uint8_t *aSourceData,
|
|
int32_t aSourceStride,
|
|
uint8_t *aDestData,
|
|
int32_t aDestStride,
|
|
const IntSize &aSize,
|
|
float aOpacity)
|
|
{
|
|
#ifdef BUILD_ARM_NEON
|
|
if (mozilla::supports_neon()) {
|
|
ComputesRGBLuminanceMask_NEON(aSourceData, aSourceStride,
|
|
aDestData, aDestStride,
|
|
aSize, aOpacity);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
int32_t redFactor = 55 * aOpacity; // 255 * 0.2125 * opacity
|
|
int32_t greenFactor = 183 * aOpacity; // 255 * 0.7154 * opacity
|
|
int32_t blueFactor = 18 * aOpacity; // 255 * 0.0721
|
|
int32_t sourceOffset = aSourceStride - 4 * aSize.width;
|
|
const uint8_t *sourcePixel = aSourceData;
|
|
int32_t destOffset = aDestStride - aSize.width;
|
|
uint8_t *destPixel = aDestData;
|
|
|
|
for (int32_t y = 0; y < aSize.height; y++) {
|
|
for (int32_t x = 0; x < aSize.width; x++) {
|
|
uint8_t a = sourcePixel[GFX_ARGB32_OFFSET_A];
|
|
|
|
if (a) {
|
|
*destPixel = (redFactor * sourcePixel[GFX_ARGB32_OFFSET_R] +
|
|
greenFactor * sourcePixel[GFX_ARGB32_OFFSET_G] +
|
|
blueFactor * sourcePixel[GFX_ARGB32_OFFSET_B]) >> 8;
|
|
} else {
|
|
*destPixel = 0;
|
|
}
|
|
sourcePixel += 4;
|
|
destPixel++;
|
|
}
|
|
sourcePixel += sourceOffset;
|
|
destPixel += destOffset;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ComputeLinearRGBLuminanceMask(const uint8_t *aSourceData,
|
|
int32_t aSourceStride,
|
|
uint8_t *aDestData,
|
|
int32_t aDestStride,
|
|
const IntSize &aSize,
|
|
float aOpacity)
|
|
{
|
|
int32_t redFactor = 55 * aOpacity; // 255 * 0.2125 * opacity
|
|
int32_t greenFactor = 183 * aOpacity; // 255 * 0.7154 * opacity
|
|
int32_t blueFactor = 18 * aOpacity; // 255 * 0.0721
|
|
int32_t sourceOffset = aSourceStride - 4 * aSize.width;
|
|
const uint8_t *sourcePixel = aSourceData;
|
|
int32_t destOffset = aDestStride - aSize.width;
|
|
uint8_t *destPixel = aDestData;
|
|
|
|
for (int32_t y = 0; y < aSize.height; y++) {
|
|
for (int32_t x = 0; x < aSize.width; x++) {
|
|
uint8_t a = sourcePixel[GFX_ARGB32_OFFSET_A];
|
|
|
|
// unpremultiply
|
|
if (a) {
|
|
if (a == 255) {
|
|
/* sRGB -> linearRGB -> intensity */
|
|
*destPixel =
|
|
static_cast<uint8_t>
|
|
((gsRGBToLinearRGBMap[sourcePixel[GFX_ARGB32_OFFSET_R]] *
|
|
redFactor +
|
|
gsRGBToLinearRGBMap[sourcePixel[GFX_ARGB32_OFFSET_G]] *
|
|
greenFactor +
|
|
gsRGBToLinearRGBMap[sourcePixel[GFX_ARGB32_OFFSET_B]] *
|
|
blueFactor) >> 8);
|
|
} else {
|
|
uint8_t tempPixel[4];
|
|
tempPixel[GFX_ARGB32_OFFSET_B] =
|
|
(255 * sourcePixel[GFX_ARGB32_OFFSET_B]) / a;
|
|
tempPixel[GFX_ARGB32_OFFSET_G] =
|
|
(255 * sourcePixel[GFX_ARGB32_OFFSET_G]) / a;
|
|
tempPixel[GFX_ARGB32_OFFSET_R] =
|
|
(255 * sourcePixel[GFX_ARGB32_OFFSET_R]) / a;
|
|
|
|
/* sRGB -> linearRGB -> intensity */
|
|
*destPixel =
|
|
static_cast<uint8_t>
|
|
(((gsRGBToLinearRGBMap[tempPixel[GFX_ARGB32_OFFSET_R]] *
|
|
redFactor +
|
|
gsRGBToLinearRGBMap[tempPixel[GFX_ARGB32_OFFSET_G]] *
|
|
greenFactor +
|
|
gsRGBToLinearRGBMap[tempPixel[GFX_ARGB32_OFFSET_B]] *
|
|
blueFactor) >> 8) * (a / 255.0f));
|
|
}
|
|
} else {
|
|
*destPixel = 0;
|
|
}
|
|
sourcePixel += 4;
|
|
destPixel++;
|
|
}
|
|
sourcePixel += sourceOffset;
|
|
destPixel += destOffset;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ComputeAlphaMask(const uint8_t *aSourceData,
|
|
int32_t aSourceStride,
|
|
uint8_t *aDestData,
|
|
int32_t aDestStride,
|
|
const IntSize &aSize,
|
|
float aOpacity)
|
|
{
|
|
int32_t sourceOffset = aSourceStride - 4 * aSize.width;
|
|
const uint8_t *sourcePixel = aSourceData;
|
|
int32_t destOffset = aDestStride - aSize.width;
|
|
uint8_t *destPixel = aDestData;
|
|
|
|
for (int32_t y = 0; y < aSize.height; y++) {
|
|
for (int32_t x = 0; x < aSize.width; x++) {
|
|
*destPixel = sourcePixel[GFX_ARGB32_OFFSET_A] * aOpacity;
|
|
sourcePixel += 4;
|
|
destPixel++;
|
|
}
|
|
sourcePixel += sourceOffset;
|
|
destPixel += destOffset;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// Implementation
|
|
|
|
nsIFrame*
|
|
NS_NewSVGMaskFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsSVGMaskFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsSVGMaskFrame)
|
|
|
|
already_AddRefed<SourceSurface>
|
|
nsSVGMaskFrame::GetMaskForMaskedFrame(gfxContext* aContext,
|
|
nsIFrame* aMaskedFrame,
|
|
const gfxMatrix &aMatrix,
|
|
float aOpacity,
|
|
Matrix* aMaskTransform)
|
|
{
|
|
// If the flag is set when we get here, it means this mask frame
|
|
// has already been used painting the current mask, and the document
|
|
// has a mask reference loop.
|
|
if (mInUse) {
|
|
NS_WARNING("Mask loop detected!");
|
|
return nullptr;
|
|
}
|
|
AutoMaskReferencer maskRef(this);
|
|
|
|
SVGMaskElement *maskElem = static_cast<SVGMaskElement*>(mContent);
|
|
|
|
uint16_t units =
|
|
maskElem->mEnumAttributes[SVGMaskElement::MASKUNITS].GetAnimValue();
|
|
gfxRect bbox;
|
|
if (units == SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
|
|
bbox = nsSVGUtils::GetBBox(aMaskedFrame);
|
|
}
|
|
|
|
// Bounds in the user space of aMaskedFrame
|
|
gfxRect maskArea = nsSVGUtils::GetRelativeRect(units,
|
|
&maskElem->mLengthAttributes[SVGMaskElement::ATTR_X],
|
|
bbox, aMaskedFrame);
|
|
|
|
// Get the clip extents in device space:
|
|
// Minimizing the mask surface extents (using both the current clip extents
|
|
// and maskArea) is important for performance.
|
|
aContext->Save();
|
|
nsSVGUtils::SetClipRect(aContext, aMatrix, maskArea);
|
|
aContext->SetMatrix(gfxMatrix());
|
|
gfxRect maskSurfaceRect = aContext->GetClipExtents();
|
|
maskSurfaceRect.RoundOut();
|
|
aContext->Restore();
|
|
|
|
bool resultOverflows;
|
|
IntSize maskSurfaceSize =
|
|
nsSVGUtils::ConvertToSurfaceSize(maskSurfaceRect.Size(), &resultOverflows);
|
|
|
|
if (resultOverflows || maskSurfaceSize.IsEmpty()) {
|
|
// XXXjwatt we should return an empty surface so we don't paint aMaskedFrame!
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<DrawTarget> maskDT =
|
|
Factory::CreateDrawTarget(BackendType::CAIRO, maskSurfaceSize,
|
|
SurfaceFormat::B8G8R8A8);
|
|
if (!maskDT) {
|
|
return nullptr;
|
|
}
|
|
|
|
gfxMatrix maskSurfaceMatrix =
|
|
aContext->CurrentMatrix() * gfxMatrix::Translation(-maskSurfaceRect.TopLeft());
|
|
|
|
RefPtr<gfxContext> tmpCtx = new gfxContext(maskDT);
|
|
tmpCtx->SetMatrix(maskSurfaceMatrix);
|
|
|
|
mMatrixForChildren = GetMaskTransform(aMaskedFrame) * aMatrix;
|
|
|
|
for (nsIFrame* kid = mFrames.FirstChild(); kid;
|
|
kid = kid->GetNextSibling()) {
|
|
// The CTM of each frame referencing us can be different
|
|
nsISVGChildFrame* SVGFrame = do_QueryFrame(kid);
|
|
if (SVGFrame) {
|
|
SVGFrame->NotifySVGChanged(nsISVGChildFrame::TRANSFORM_CHANGED);
|
|
}
|
|
gfxMatrix m = mMatrixForChildren;
|
|
if (kid->GetContent()->IsSVGElement()) {
|
|
m = static_cast<nsSVGElement*>(kid->GetContent())->
|
|
PrependLocalTransformsTo(m);
|
|
}
|
|
nsSVGUtils::PaintFrameWithEffects(kid, *tmpCtx, m);
|
|
}
|
|
|
|
RefPtr<SourceSurface> maskSnapshot = maskDT->Snapshot();
|
|
if (!maskSnapshot) {
|
|
return nullptr;
|
|
}
|
|
RefPtr<DataSourceSurface> maskSurface = maskSnapshot->GetDataSurface();
|
|
DataSourceSurface::MappedSurface map;
|
|
if (!maskSurface->Map(DataSourceSurface::MapType::READ, &map)) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Create alpha channel mask for output
|
|
RefPtr<DrawTarget> destMaskDT =
|
|
Factory::CreateDrawTarget(BackendType::CAIRO, maskSurfaceSize,
|
|
SurfaceFormat::A8);
|
|
if (!destMaskDT) {
|
|
return nullptr;
|
|
}
|
|
RefPtr<SourceSurface> destMaskSnapshot = destMaskDT->Snapshot();
|
|
if (!destMaskSnapshot) {
|
|
return nullptr;
|
|
}
|
|
RefPtr<DataSourceSurface> destMaskSurface = destMaskSnapshot->GetDataSurface();
|
|
DataSourceSurface::MappedSurface destMap;
|
|
if (!destMaskSurface->Map(DataSourceSurface::MapType::READ_WRITE, &destMap)) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (StyleSVGReset()->mMaskType == NS_STYLE_MASK_TYPE_LUMINANCE) {
|
|
if (StyleSVG()->mColorInterpolation ==
|
|
NS_STYLE_COLOR_INTERPOLATION_LINEARRGB) {
|
|
ComputeLinearRGBLuminanceMask(map.mData, map.mStride,
|
|
destMap.mData, destMap.mStride,
|
|
maskSurfaceSize, aOpacity);
|
|
} else {
|
|
ComputesRGBLuminanceMask(map.mData, map.mStride,
|
|
destMap.mData, destMap.mStride,
|
|
maskSurfaceSize, aOpacity);
|
|
}
|
|
} else {
|
|
ComputeAlphaMask(map.mData, map.mStride,
|
|
destMap.mData, destMap.mStride,
|
|
maskSurfaceSize, aOpacity);
|
|
}
|
|
|
|
maskSurface->Unmap();
|
|
destMaskSurface->Unmap();
|
|
|
|
// Moz2D transforms in the opposite direction to Thebes
|
|
if (!maskSurfaceMatrix.Invert()) {
|
|
return nullptr;
|
|
}
|
|
|
|
*aMaskTransform = ToMatrix(maskSurfaceMatrix);
|
|
return destMaskSurface.forget();
|
|
}
|
|
|
|
nsresult
|
|
nsSVGMaskFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType)
|
|
{
|
|
if (aNameSpaceID == kNameSpaceID_None &&
|
|
(aAttribute == nsGkAtoms::x ||
|
|
aAttribute == nsGkAtoms::y ||
|
|
aAttribute == nsGkAtoms::width ||
|
|
aAttribute == nsGkAtoms::height||
|
|
aAttribute == nsGkAtoms::maskUnits ||
|
|
aAttribute == nsGkAtoms::maskContentUnits)) {
|
|
nsSVGEffects::InvalidateDirectRenderingObservers(this);
|
|
}
|
|
|
|
return nsSVGMaskFrameBase::AttributeChanged(aNameSpaceID,
|
|
aAttribute, aModType);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
void
|
|
nsSVGMaskFrame::Init(nsIContent* aContent,
|
|
nsContainerFrame* aParent,
|
|
nsIFrame* aPrevInFlow)
|
|
{
|
|
NS_ASSERTION(aContent->IsSVGElement(nsGkAtoms::mask),
|
|
"Content is not an SVG mask");
|
|
|
|
nsSVGMaskFrameBase::Init(aContent, aParent, aPrevInFlow);
|
|
}
|
|
#endif /* DEBUG */
|
|
|
|
nsIAtom *
|
|
nsSVGMaskFrame::GetType() const
|
|
{
|
|
return nsGkAtoms::svgMaskFrame;
|
|
}
|
|
|
|
gfxMatrix
|
|
nsSVGMaskFrame::GetCanvasTM()
|
|
{
|
|
return mMatrixForChildren;
|
|
}
|
|
|
|
gfxMatrix
|
|
nsSVGMaskFrame::GetMaskTransform(nsIFrame* aMaskedFrame)
|
|
{
|
|
SVGMaskElement *content = static_cast<SVGMaskElement*>(mContent);
|
|
|
|
nsSVGEnum* maskContentUnits =
|
|
&content->mEnumAttributes[SVGMaskElement::MASKCONTENTUNITS];
|
|
|
|
return nsSVGUtils::AdjustMatrixForUnits(gfxMatrix(), maskContentUnits,
|
|
aMaskedFrame);
|
|
}
|