mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-24 13:21:05 +00:00
60eb91527f
This detects and forwards circles in DrawTargetRecording and also implements StrokeCircle and FillCircle in D2D. Differential Revision: https://phabricator.services.mozilla.com/D181559
350 lines
12 KiB
C++
350 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "2D.h"
|
|
#include "Blur.h"
|
|
#include "Logging.h"
|
|
#include "PathHelpers.h"
|
|
#include "SourceSurfaceRawData.h"
|
|
#include "Tools.h"
|
|
|
|
#include "BufferEdgePad.h"
|
|
#include "BufferUnrotate.h"
|
|
|
|
#ifdef USE_NEON
|
|
# include "mozilla/arm.h"
|
|
# include "LuminanceNEON.h"
|
|
#endif
|
|
|
|
namespace mozilla {
|
|
namespace gfx {
|
|
|
|
/**
|
|
* Byte offsets of channels in a native packed gfxColor or cairo image surface.
|
|
*/
|
|
#ifdef IS_BIG_ENDIAN
|
|
# define GFX_ARGB32_OFFSET_A 0
|
|
# define GFX_ARGB32_OFFSET_R 1
|
|
# define GFX_ARGB32_OFFSET_G 2
|
|
# define GFX_ARGB32_OFFSET_B 3
|
|
#else
|
|
# define GFX_ARGB32_OFFSET_A 3
|
|
# define GFX_ARGB32_OFFSET_R 2
|
|
# define GFX_ARGB32_OFFSET_G 1
|
|
# define GFX_ARGB32_OFFSET_B 0
|
|
#endif
|
|
|
|
// 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 USE_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;
|
|
}
|
|
}
|
|
|
|
void DrawTarget::PushDeviceSpaceClipRects(const IntRect* aRects,
|
|
uint32_t aCount) {
|
|
Matrix oldTransform = GetTransform();
|
|
SetTransform(Matrix());
|
|
|
|
RefPtr<PathBuilder> pathBuilder = CreatePathBuilder();
|
|
for (uint32_t i = 0; i < aCount; i++) {
|
|
AppendRectToPath(pathBuilder, Rect(aRects[i]));
|
|
}
|
|
RefPtr<Path> path = pathBuilder->Finish();
|
|
PushClip(path);
|
|
|
|
SetTransform(oldTransform);
|
|
}
|
|
|
|
void DrawTarget::FillRoundedRect(const RoundedRect& aRect,
|
|
const Pattern& aPattern,
|
|
const DrawOptions& aOptions) {
|
|
RefPtr<Path> path = MakePathForRoundedRect(*this, aRect.rect, aRect.corners);
|
|
Fill(path, aPattern, aOptions);
|
|
}
|
|
|
|
void DrawTarget::StrokeCircle(const Point& aOrigin, float radius,
|
|
const Pattern& aPattern,
|
|
const StrokeOptions& aStrokeOptions,
|
|
const DrawOptions& aOptions) {
|
|
RefPtr<Path> path = MakePathForCircle(*this, aOrigin, radius);
|
|
Stroke(path, aPattern, aStrokeOptions, aOptions);
|
|
}
|
|
|
|
void DrawTarget::FillCircle(const Point& aOrigin, float radius,
|
|
const Pattern& aPattern,
|
|
const DrawOptions& aOptions) {
|
|
RefPtr<Path> path = MakePathForCircle(*this, aOrigin, radius);
|
|
Fill(path, aPattern, aOptions);
|
|
}
|
|
|
|
void DrawTarget::StrokeGlyphs(ScaledFont* aFont, const GlyphBuffer& aBuffer,
|
|
const Pattern& aPattern,
|
|
const StrokeOptions& aStrokeOptions,
|
|
const DrawOptions& aOptions) {
|
|
RefPtr<Path> path = aFont->GetPathForGlyphs(aBuffer, this);
|
|
Stroke(path, aPattern, aStrokeOptions, aOptions);
|
|
}
|
|
|
|
already_AddRefed<SourceSurface> DrawTarget::IntoLuminanceSource(
|
|
LuminanceType aMaskType, float aOpacity) {
|
|
RefPtr<SourceSurface> surface = Snapshot();
|
|
if (!surface) {
|
|
return nullptr;
|
|
}
|
|
|
|
IntSize size = surface->GetSize();
|
|
|
|
RefPtr<DataSourceSurface> maskSurface = surface->GetDataSurface();
|
|
if (!maskSurface) {
|
|
return nullptr;
|
|
}
|
|
|
|
DataSourceSurface::MappedSurface map;
|
|
if (!maskSurface->Map(DataSourceSurface::MapType::READ, &map)) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Create alpha channel mask for output
|
|
RefPtr<SourceSurfaceAlignedRawData> destMaskSurface =
|
|
new SourceSurfaceAlignedRawData;
|
|
if (!destMaskSurface->Init(size, SurfaceFormat::A8, false, 0)) {
|
|
return nullptr;
|
|
}
|
|
DataSourceSurface::MappedSurface destMap;
|
|
if (!destMaskSurface->Map(DataSourceSurface::MapType::WRITE, &destMap)) {
|
|
return nullptr;
|
|
}
|
|
|
|
switch (aMaskType) {
|
|
case LuminanceType::LUMINANCE: {
|
|
ComputesRGBLuminanceMask(map.mData, map.mStride, destMap.mData,
|
|
destMap.mStride, size, aOpacity);
|
|
break;
|
|
}
|
|
case LuminanceType::LINEARRGB: {
|
|
ComputeLinearRGBLuminanceMask(map.mData, map.mStride, destMap.mData,
|
|
destMap.mStride, size, aOpacity);
|
|
break;
|
|
}
|
|
}
|
|
|
|
maskSurface->Unmap();
|
|
destMaskSurface->Unmap();
|
|
|
|
return destMaskSurface.forget();
|
|
}
|
|
|
|
void DrawTarget::Blur(const AlphaBoxBlur& aBlur) {
|
|
uint8_t* data;
|
|
IntSize size;
|
|
int32_t stride;
|
|
SurfaceFormat format;
|
|
if (!LockBits(&data, &size, &stride, &format)) {
|
|
gfxWarning() << "Cannot perform in-place blur on non-data DrawTarget";
|
|
return;
|
|
}
|
|
|
|
// Sanity check that the blur size matches the draw target.
|
|
MOZ_ASSERT(size == aBlur.GetSize());
|
|
MOZ_ASSERT(stride == aBlur.GetStride());
|
|
aBlur.Blur(data);
|
|
|
|
ReleaseBits(data);
|
|
}
|
|
|
|
void DrawTarget::PadEdges(const IntRegion& aRegion) {
|
|
PadDrawTargetOutFromRegion(this, aRegion);
|
|
}
|
|
|
|
bool DrawTarget::Unrotate(IntPoint aRotation) {
|
|
unsigned char* data;
|
|
IntSize size;
|
|
int32_t stride;
|
|
SurfaceFormat format;
|
|
|
|
if (LockBits(&data, &size, &stride, &format)) {
|
|
uint8_t bytesPerPixel = BytesPerPixel(format);
|
|
BufferUnrotate(data, size.width * bytesPerPixel, size.height, stride,
|
|
aRotation.x * bytesPerPixel, aRotation.y);
|
|
ReleaseBits(data);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
int32_t ShadowOptions::BlurRadius() const {
|
|
return AlphaBoxBlur::CalculateBlurRadius(Point(mSigma, mSigma)).width;
|
|
}
|
|
|
|
void DrawTarget::DrawShadow(const Path* aPath, const Pattern& aPattern,
|
|
const ShadowOptions& aShadow,
|
|
const DrawOptions& aOptions,
|
|
const StrokeOptions* aStrokeOptions) {
|
|
// Get the approximate bounds of the source path
|
|
Rect bounds = aPath->GetFastBounds(GetTransform(), aStrokeOptions);
|
|
if (bounds.IsEmpty()) {
|
|
return;
|
|
}
|
|
// Inflate the bounds by the blur radius
|
|
bounds += aShadow.mOffset;
|
|
int32_t blurRadius = aShadow.BlurRadius();
|
|
bounds.Inflate(blurRadius);
|
|
bounds.RoundOut();
|
|
// Check if the bounds intersect the viewport
|
|
Rect viewport(GetRect());
|
|
viewport.Inflate(blurRadius);
|
|
bounds = bounds.Intersect(viewport);
|
|
IntRect intBounds;
|
|
if (bounds.IsEmpty() || !bounds.ToIntRect(&intBounds) ||
|
|
!CanCreateSimilarDrawTarget(intBounds.Size(), SurfaceFormat::A8)) {
|
|
return;
|
|
}
|
|
// Create a draw target for drawing the shadow mask with enough room for blur
|
|
RefPtr<DrawTarget> shadowTarget = CreateShadowDrawTarget(
|
|
intBounds.Size(), SurfaceFormat::A8, aShadow.mSigma);
|
|
if (shadowTarget) {
|
|
// See bug 1524554.
|
|
shadowTarget->ClearRect(Rect());
|
|
}
|
|
if (!shadowTarget || !shadowTarget->IsValid()) {
|
|
return;
|
|
}
|
|
// Draw the path into the target for the initial shadow mask
|
|
Point offset = Point(intBounds.TopLeft()) - aShadow.mOffset;
|
|
shadowTarget->SetTransform(GetTransform().PostTranslate(-offset));
|
|
DrawOptions shadowDrawOptions(
|
|
aOptions.mAlpha, CompositionOp::OP_OVER,
|
|
blurRadius > 1 ? AntialiasMode::NONE : aOptions.mAntialiasMode);
|
|
if (aStrokeOptions) {
|
|
shadowTarget->Stroke(aPath, aPattern, *aStrokeOptions, shadowDrawOptions);
|
|
} else {
|
|
shadowTarget->Fill(aPath, aPattern, shadowDrawOptions);
|
|
}
|
|
RefPtr<SourceSurface> snapshot = shadowTarget->Snapshot();
|
|
// Finally, hand a snapshot of the mask to DrawSurfaceWithShadow for the
|
|
// final shadow blur
|
|
if (snapshot) {
|
|
DrawSurfaceWithShadow(snapshot, offset, aShadow, aOptions.mCompositionOp);
|
|
}
|
|
}
|
|
|
|
} // namespace gfx
|
|
} // namespace mozilla
|