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/*
* Copyright (C) 2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include <WebCore/ImageBuffer.h>
#include <WebCore/PlatformImageBuffer.h>
namespace TestWebKitAPI {
using namespace WebCore;
// Tests that the specialized image buffer constructors construct the expected type of object.
// Test passes if the test compiles, there was a bug where the code wouldn't compile.
TEST(ImageBufferTests, ImageBufferSubTypeCreateCreatesSubtypes)
{
auto colorSpace = DestinationColorSpace::SRGB();
auto pixelFormat = PixelFormat::BGRA8;
FloatSize size { 1.f, 1.f };
float scale = 1.f;
RefPtr<UnacceleratedImageBuffer> unaccelerated = UnacceleratedImageBuffer::create(size, scale, colorSpace, pixelFormat, nullptr);
RefPtr<AcceleratedImageBuffer> accelerated = AcceleratedImageBuffer::create(size, scale, colorSpace, pixelFormat, nullptr);
RefPtr<DisplayListAcceleratedImageBuffer> displayListAccelerated = DisplayListAcceleratedImageBuffer::create(size, scale, colorSpace, pixelFormat, nullptr);
RefPtr<DisplayListUnacceleratedImageBuffer> displayListUnaccelerated = DisplayListUnacceleratedImageBuffer::create(size, scale, colorSpace, pixelFormat, nullptr);
EXPECT_NE(nullptr, accelerated);
EXPECT_NE(nullptr, unaccelerated);
EXPECT_NE(nullptr, displayListAccelerated);
EXPECT_NE(nullptr, displayListUnaccelerated);
}
TEST(ImageBufferTests, ImageBufferSubPixelDrawing)
{
auto colorSpace = DestinationColorSpace::SRGB();
auto pixelFormat = PixelFormat::BGRA8;
FloatSize logicalSize { 392, 44 };
float scale = 1.91326535;
auto frontImageBuffer = ImageBuffer::create(logicalSize, RenderingMode::Accelerated, scale, colorSpace, pixelFormat, nullptr);
auto backImageBuffer = ImageBuffer::create(logicalSize, RenderingMode::Accelerated, scale, colorSpace, pixelFormat, nullptr);
auto strokeRect = FloatRect { { }, logicalSize };
strokeRect.inflate(-0.5);
auto fillRect = strokeRect;
fillRect.inflate(-1);
auto& frontContext = frontImageBuffer->context();
auto& backContext = backImageBuffer->context();
frontContext.setShouldAntialias(false);
backContext.setShouldAntialias(false);
frontContext.setStrokeColor(Color::red);
frontContext.strokeRect(strokeRect, 1);
frontContext.fillRect(fillRect, Color::green);
for (int i = 0; i < 1000; ++i) {
backContext.drawImageBuffer(*frontImageBuffer, WebCore::FloatPoint { }, { WebCore::CompositeOperator::Copy });
frontContext.drawImageBuffer(*backImageBuffer, WebCore::FloatPoint { }, { WebCore::CompositeOperator::Copy });
}
auto checkGreenPixel = [&](ImageBuffer& imageBuffer, int x, int y) {
PixelBufferFormat format { AlphaPremultiplication::Unpremultiplied, PixelFormat::RGBA8, colorSpace };
auto frontPixelBuffer = imageBuffer.getPixelBuffer(format, { x, y, 1, 1 });
auto& data = frontPixelBuffer->data();
EXPECT_EQ(data.item(0), 0x00);
EXPECT_EQ(data.item(1), 0xff);
EXPECT_EQ(data.item(2), 0x00);
EXPECT_EQ(data.item(3), 0xff);
};
checkGreenPixel(*frontImageBuffer, fillRect.x() + 1, fillRect.y() + 1);
checkGreenPixel(*frontImageBuffer, fillRect.maxX() - 1, fillRect.y() + 1);
checkGreenPixel(*frontImageBuffer, fillRect.x() + 1, fillRect.maxY() - 1);
checkGreenPixel(*frontImageBuffer, fillRect.maxX() - 1, fillRect.maxY() - 1);
checkGreenPixel(*backImageBuffer, fillRect.x() + 1, fillRect.y() + 1);
checkGreenPixel(*backImageBuffer, fillRect.maxX() - 1, fillRect.y() + 1);
checkGreenPixel(*backImageBuffer, fillRect.x() + 1, fillRect.maxY() - 1);
checkGreenPixel(*backImageBuffer, fillRect.maxX() - 1, fillRect.maxY() - 1);
}
}
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