PlatformContextSkiaTest.cpp [plain text]
#include "config.h"
#include "PlatformContextSkia.h"
#include "BitmapImageSingleFrameSkia.h"
#include "GraphicsContext.h"
#include "ImageBuffer.h"
#include "NativeImageSkia.h"
#include "SkCanvas.h"
#include <gtest/gtest.h>
using namespace WebCore;
namespace {
#define EXPECT_EQ_RECT(a, b) \
EXPECT_EQ(a.x(), b.x()); \
EXPECT_EQ(a.y(), b.y()); \
EXPECT_EQ(a.width(), b.width()); \
EXPECT_EQ(a.height(), b.height());
#define EXPECT_PIXELS_MATCH(bitmap, opaqueRect) \
{ \
SkAutoLockPixels locker(bitmap); \
for (int y = opaqueRect.y(); y < opaqueRect.maxY(); ++y) \
for (int x = opaqueRect.x(); x < opaqueRect.maxX(); ++x) { \
int alpha = *bitmap.getAddr32(x, y) >> 24; \
EXPECT_EQ(255, alpha); \
} \
}
#define EXPECT_PIXELS_MATCH_EXACT(bitmap, opaqueRect) \
{ \
SkAutoLockPixels locker(bitmap); \
for (int y = 0; y < bitmap.height(); ++y) \
for (int x = 0; x < bitmap.width(); ++x) { \
int alpha = *bitmap.getAddr32(x, y) >> 24; \
bool opaque = opaqueRect.contains(x, y); \
EXPECT_EQ(opaque, alpha == 255); \
} \
}
TEST(PlatformContextSkiaTest, trackOpaqueTest)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(10, 10, 90, 90), alpha, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(99, 13, 10, 90), opaque, ColorSpaceDeviceRGB, CompositePlusLighter);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(99, 13, 10, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceIn);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(99, 13, 10, 90), alpha, ColorSpaceDeviceRGB, CompositeSourceIn);
EXPECT_EQ_RECT(IntRect(10, 10, 89, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(8, 8, 3, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOut);
EXPECT_EQ_RECT(IntRect(11, 10, 88, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(30, 30, 290, 290), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(30, 30, 290, 290), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(40, 20, 290, 50), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(30, 30, 290, 290), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(10, 10, 390, 50), opaque, ColorSpaceDeviceRGB, CompositeSourceIn);
EXPECT_EQ_RECT(IntRect(30, 30, 290, 290), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(10, 10, 390, 50), alpha, ColorSpaceDeviceRGB);
EXPECT_EQ_RECT(IntRect(30, 30, 290, 290), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(10, 10, 390, 50), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(30, 10, 290, 310), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, trackOpaqueClipTest)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
bitmap.allocPixels();
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.clearRect(FloatRect(10, 10, 90, 90));
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
context.save();
context.clip(FloatRect(0, 0, 10, 10));
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.restore();
context.clearRect(FloatRect(10, 10, 90, 90));
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
context.save();
context.clip(FloatRect(20, 20, 10, 10));
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(20, 20, 10, 10), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.clearRect(FloatRect(10, 10, 90, 90));
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
context.clip(FloatRect(30, 20, 10, 10));
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.restore();
context.clearRect(FloatRect(10, 10, 90, 90));
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
context.save();
context.translate(10, 10);
context.clip(FloatRect(20, 20, 10, 10));
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(30, 30, 10, 10), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.restore();
context.clearRect(FloatRect(10, 10, 90, 90));
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
context.save();
context.clip(FloatRect(20, 20, 10, 10));
context.translate(10, 10);
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(20, 20, 10, 10), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.restore();
context.clearRect(FloatRect(10, 10, 90, 90));
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
Path path;
path.moveTo(FloatPoint(0, 0));
path.addLineTo(FloatPoint(100, 0));
context.save();
context.clipPath(path, RULE_EVENODD);
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.restore();
context.save();
context.clip(IntRect(30, 30, 20, 20));
context.clipOut(IntRect(30, 30, 10, 10));
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.restore();
OwnPtr<ImageBuffer> alphaImage = ImageBuffer::create(IntSize(100, 100));
alphaImage->context()->fillRect(IntRect(0, 0, 100, 100), alpha, ColorSpaceDeviceRGB);
context.save();
context.clipToImageBuffer(alphaImage.get(), FloatRect(30, 30, 10, 10));
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
context.restore();
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, trackImageMask)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
context.setCompositeOperation(CompositeSourceOver);
context.beginTransparencyLayer(1);
context.fillRect(FloatRect(10, 10, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
context.setCompositeOperation(CompositeDestinationIn);
context.beginTransparencyLayer(1);
OwnPtr<ImageBuffer> alphaImage = ImageBuffer::create(IntSize(100, 100));
alphaImage->context()->fillRect(IntRect(0, 0, 100, 100), alpha, ColorSpaceDeviceRGB);
context.setCompositeOperation(CompositeSourceOver);
context.drawImageBuffer(alphaImage.get(), ColorSpaceDeviceRGB, FloatRect(10, 10, 10, 10));
context.endTransparencyLayer();
context.endTransparencyLayer();
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH_EXACT(bitmap, platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, trackImageMaskWithOpaqueRect)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
context.setCompositeOperation(CompositeSourceOver);
context.beginTransparencyLayer(1);
context.fillRect(FloatRect(10, 10, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
context.setCompositeOperation(CompositeDestinationIn);
context.beginTransparencyLayer(1);
OwnPtr<ImageBuffer> alphaImage = ImageBuffer::create(IntSize(100, 100));
alphaImage->context()->fillRect(IntRect(0, 0, 100, 100), alpha, ColorSpaceDeviceRGB);
context.setCompositeOperation(CompositeSourceOver);
context.drawImageBuffer(alphaImage.get(), ColorSpaceDeviceRGB, FloatRect(10, 10, 10, 10));
context.fillRect(FloatRect(12, 12, 3, 3), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
context.endTransparencyLayer();
context.endTransparencyLayer();
EXPECT_EQ_RECT(IntRect(12, 12, 3, 3), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH_EXACT(bitmap, platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, trackOpaqueJoinTest)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
bitmap.allocPixels();
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
context.fillRect(FloatRect(20, 20, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(20, 20, 10, 10), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(31, 20, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(20, 20, 10, 10), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(30, 20, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(20, 20, 20, 10), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(20, 31, 20, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(20, 20, 20, 10), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(20, 30, 20, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(20, 20, 20, 20), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(9, 20, 10, 20), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(20, 20, 20, 20), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(10, 20, 10, 20), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 20, 30, 20), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(10, 9, 30, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 20, 30, 20), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(10, 10, 30, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 30, 30), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, trackOpaqueLineTest)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 200, 200);
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
context.setShouldAntialias(false);
context.setMiterLimit(0);
context.setStrokeThickness(4);
context.setLineCap(SquareCap);
context.setStrokeStyle(SolidStroke);
context.setCompositeOperation(CompositeSourceOver);
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setCompositeOperation(CompositeSourceIn);
context.save();
context.setStrokeColor(alpha, ColorSpaceDeviceRGB);
context.drawLine(IntPoint(0, 0), IntPoint(100, 0));
context.restore();
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.save();
context.setStrokeColor(opaque, ColorSpaceDeviceRGB);
context.drawLine(IntPoint(0, 10), IntPoint(100, 10));
context.restore();
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.save();
context.setStrokeColor(alpha, ColorSpaceDeviceRGB);
context.drawLine(IntPoint(0, 10), IntPoint(100, 10));
context.restore();
EXPECT_EQ_RECT(IntRect(10, 13, 90, 87), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.save();
context.setStrokeColor(alpha, ColorSpaceDeviceRGB);
context.drawLine(IntPoint(0, 11), IntPoint(100, 11));
context.restore();
EXPECT_EQ_RECT(IntRect(10, 14, 90, 86), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setShouldAntialias(true);
context.setCompositeOperation(CompositeSourceOver);
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setCompositeOperation(CompositeSourceIn);
context.save();
context.setStrokeColor(alpha, ColorSpaceDeviceRGB);
context.drawLine(IntPoint(0, 0), IntPoint(100, 0));
context.restore();
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setShouldAntialias(false);
context.save();
context.setStrokeColor(opaque, ColorSpaceDeviceRGB);
context.drawLine(IntPoint(0, 10), IntPoint(100, 10));
context.restore();
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setShouldAntialias(true);
context.save();
context.setStrokeColor(opaque, ColorSpaceDeviceRGB);
context.drawLine(IntPoint(0, 10), IntPoint(100, 10));
context.restore();
EXPECT_EQ_RECT(IntRect(10, 13, 90, 87), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.save();
context.setStrokeColor(alpha, ColorSpaceDeviceRGB);
context.drawLine(IntPoint(0, 11), IntPoint(100, 11));
context.restore();
EXPECT_EQ_RECT(IntRect(10, 14, 90, 86), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, trackOpaquePathTest)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 200, 200);
bitmap.allocPixels();
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setShouldAntialias(false);
context.setMiterLimit(1);
context.setStrokeThickness(5);
context.setLineCap(SquareCap);
context.setStrokeStyle(SolidStroke);
context.setCompositeOperation(CompositeSourceIn);
Path path;
context.setFillColor(alpha, ColorSpaceDeviceRGB);
path.moveTo(FloatPoint(0, 0));
path.addLineTo(FloatPoint(100, 0));
context.fillPath(path);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
path.clear();
context.setFillColor(opaque, ColorSpaceDeviceRGB);
path.moveTo(FloatPoint(0, 10));
path.addLineTo(FloatPoint(100, 13));
context.fillPath(path);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
path.clear();
context.setFillColor(alpha, ColorSpaceDeviceRGB);
path.moveTo(FloatPoint(0, 10));
path.addLineTo(FloatPoint(100, 13));
context.fillPath(path);
EXPECT_EQ_RECT(IntRect(10, 13, 90, 87), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
path.clear();
context.setFillColor(alpha, ColorSpaceDeviceRGB);
path.moveTo(FloatPoint(0, 14));
path.addLineTo(FloatPoint(100, 10));
context.fillPath(path);
EXPECT_EQ_RECT(IntRect(10, 14, 90, 86), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
path.clear();
}
TEST(PlatformContextSkiaTest, trackOpaqueImageTest)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 200, 200);
bitmap.allocPixels();
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
SkBitmap drawBitmap;
drawBitmap.setConfig(SkBitmap::kARGB_8888_Config, 10, 10);
drawBitmap.allocPixels();
drawBitmap.setIsOpaque(true);
for (int y = 0; y < drawBitmap.height(); ++y)
for (int x = 0; x < drawBitmap.width(); ++x)
*drawBitmap.getAddr32(x, y) = 0xFFFFFFFF;
RefPtr<BitmapImageSingleFrameSkia> opaqueImage = BitmapImageSingleFrameSkia::create(drawBitmap, true);
EXPECT_FALSE(opaqueImage->currentFrameHasAlpha());
drawBitmap.setIsOpaque(false);
for (int y = 0; y < drawBitmap.height(); ++y)
for (int x = 0; x < drawBitmap.width(); ++x)
*drawBitmap.getAddr32(x, y) = 0x00000000;
RefPtr<BitmapImageSingleFrameSkia> alphaImage = BitmapImageSingleFrameSkia::create(drawBitmap, true);
EXPECT_TRUE(alphaImage->currentFrameHasAlpha());
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.drawImage(opaqueImage.get(), ColorSpaceDeviceRGB, IntPoint(0, 0));
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.drawImage(alphaImage.get(), ColorSpaceDeviceRGB, IntPoint(0, 0));
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.drawImage(opaqueImage.get(), ColorSpaceDeviceRGB, IntPoint(5, 5));
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.drawImage(alphaImage.get(), ColorSpaceDeviceRGB, IntPoint(5, 5));
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.drawImage(opaqueImage.get(), ColorSpaceDeviceRGB, IntPoint(10, 10));
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.drawImage(alphaImage.get(), ColorSpaceDeviceRGB, IntPoint(10, 10));
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.drawImage(alphaImage.get(), ColorSpaceDeviceRGB, IntPoint(20, 10), CompositeSourceIn);
EXPECT_EQ_RECT(IntRect(10, 20, 90, 80), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.save();
context.setAlpha(0.5);
context.drawImage(opaqueImage.get(), ColorSpaceDeviceRGB, IntPoint(25, 15), CompositeSourceIn);
context.restore();
EXPECT_EQ_RECT(IntRect(10, 25, 90, 75), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.drawImage(alphaImage.get(), ColorSpaceDeviceRGB, IntPoint(10, 20), CompositeSourceIn);
EXPECT_EQ_RECT(IntRect(20, 10, 80, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.save();
context.setAlpha(0.5);
context.drawImage(opaqueImage.get(), ColorSpaceDeviceRGB, IntPoint(15, 25), CompositeSourceIn);
context.restore();
EXPECT_EQ_RECT(IntRect(25, 10, 75, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, trackOpaqueOvalTest)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 200, 200);
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
EXPECT_EQ_RECT(IntRect(0, 0, 0, 0), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.drawEllipse(IntRect(10, 10, 90, 90));
EXPECT_EQ_RECT(IntRect(0, 0, 0, 0), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.fillRect(FloatRect(10, 10, 90, 90), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setCompositeOperation(CompositeSourceIn);
context.setShouldAntialias(false);
context.setFillColor(opaque, ColorSpaceDeviceRGB);
context.drawEllipse(IntRect(10, 10, 50, 30));
EXPECT_EQ_RECT(IntRect(10, 10, 90, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setFillColor(alpha, ColorSpaceDeviceRGB);
context.drawEllipse(IntRect(10, 10, 30, 50));
EXPECT_EQ_RECT(IntRect(40, 10, 60, 90), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setShouldAntialias(true);
context.setFillColor(opaque, ColorSpaceDeviceRGB);
context.drawEllipse(IntRect(10, 10, 50, 30));
EXPECT_EQ_RECT(IntRect(40, 41, 60, 59), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.setFillColor(alpha, ColorSpaceDeviceRGB);
context.drawEllipse(IntRect(20, 10, 30, 50));
EXPECT_EQ_RECT(IntRect(51, 41, 49, 59), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, contextTransparencyLayerTest)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
context.fillRect(FloatRect(20, 20, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(20, 20, 10, 10), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
context.clearRect(FloatRect(20, 20, 10, 10));
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
context.beginTransparencyLayer(0.5);
context.save();
context.fillRect(FloatRect(20, 20, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
context.restore();
context.endTransparencyLayer();
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
context.clearRect(FloatRect(20, 20, 10, 10));
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
context.beginTransparencyLayer(0.5);
context.fillRect(FloatRect(20, 20, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
context.endTransparencyLayer();
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, UnboundedDrawsAreClipped)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
Path path;
context.setShouldAntialias(false);
context.setMiterLimit(1);
context.setStrokeThickness(5);
context.setLineCap(SquareCap);
context.setStrokeStyle(SolidStroke);
Vector<float> dashArray;
dashArray.append(1);
dashArray.append(0);
context.setLineDash(dashArray, 0);
context.fillRect(FloatRect(10, 10, 40, 40), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 40, 40), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH_EXACT(bitmap, platformContext.opaqueRegion().asRect());
context.clip(IntRect(10, 10, 10, 40));
context.setCompositeOperation(CompositeSourceOut);
context.setFillColor(alpha, ColorSpaceDeviceRGB);
path.moveTo(FloatPoint(10, 10));
path.addLineTo(FloatPoint(40, 40));
context.strokePath(path);
EXPECT_EQ_RECT(IntRect(20, 10, 30, 40), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH(bitmap, platformContext.opaqueRegion().asRect());
}
TEST(PlatformContextSkiaTest, PreserveOpaqueOnlyMattersForFirstLayer)
{
SkBitmap bitmap;
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
PlatformContextSkia platformContext(&canvas);
platformContext.setTrackOpaqueRegion(true);
GraphicsContext context(&platformContext);
Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
Color alpha(0.0f, 0.0f, 0.0f, 0.0f);
Path path;
context.setShouldAntialias(false);
context.setMiterLimit(1);
context.setStrokeThickness(5);
context.setLineCap(SquareCap);
context.setStrokeStyle(SolidStroke);
Vector<float> dashArray;
dashArray.append(1);
dashArray.append(0);
context.setLineDash(dashArray, 0);
context.fillRect(FloatRect(10, 10, 40, 40), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
EXPECT_EQ_RECT(IntRect(10, 10, 40, 40), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH_EXACT(bitmap, platformContext.opaqueRegion().asRect());
context.setCompositeOperation(CompositeSourceOver);
context.beginTransparencyLayer(0.5);
context.setCompositeOperation(CompositeSourceOut);
context.beginTransparencyLayer(0.5);
context.fillRect(FloatRect(10, 10, 40, 40), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
context.setFillColor(opaque, ColorSpaceDeviceRGB);
path.moveTo(FloatPoint(10, 10));
path.addLineTo(FloatPoint(40, 40));
context.strokePath(path);
context.endTransparencyLayer();
context.endTransparencyLayer();
EXPECT_EQ_RECT(IntRect(10, 10, 40, 40), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH_EXACT(bitmap, platformContext.opaqueRegion().asRect());
context.setCompositeOperation(CompositeSourceOut);
context.beginTransparencyLayer(0.5);
context.fillRect(FloatRect(10, 10, 40, 40), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
context.endTransparencyLayer();
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH_EXACT(bitmap, platformContext.opaqueRegion().asRect());
context.setCompositeOperation(CompositeSourceOut);
context.beginTransparencyLayer(0.5);
context.setFillColor(opaque, ColorSpaceDeviceRGB);
path.moveTo(FloatPoint(10, 10));
path.addLineTo(FloatPoint(40, 40));
context.strokePath(path);
context.endTransparencyLayer();
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
EXPECT_PIXELS_MATCH_EXACT(bitmap, platformContext.opaqueRegion().asRect());
}
}