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/*
* Copyright (C) 2023 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <android/gui/ISurfaceComposerClient.h>
#include <gtest/gtest.h>
#include <gui/DisplayCaptureArgs.h>
#include <ui/GraphicTypes.h>
#include <ui/Rect.h>
#include "LayerTransactionTest.h"
namespace android {
bool operator==(const Color& left, const Color& right) {
return left.a == right.a && left.r == right.r && left.g == right.g && left.b == right.b;
}
class TextureFilteringTest : public LayerTransactionTest {
protected:
virtual void SetUp() {
LayerTransactionTest::SetUp();
mParent = createLayer("test-parent", 100, 100,
gui::ISurfaceComposerClient::eFXSurfaceContainer);
mLayer = createLayer("test-child", 100, 100,
gui::ISurfaceComposerClient::eFXSurfaceBufferState, mParent.get());
sp<GraphicBuffer> buffer =
sp<GraphicBuffer>::make(static_cast<uint32_t>(100), static_cast<uint32_t>(100),
PIXEL_FORMAT_RGBA_8888, 1u,
BufferUsage::CPU_READ_OFTEN | BufferUsage::CPU_WRITE_OFTEN |
BufferUsage::COMPOSER_OVERLAY |
BufferUsage::GPU_TEXTURE,
"test");
TransactionUtils::fillGraphicBufferColor(buffer, Rect{0, 0, 50, 100}, Color::RED);
TransactionUtils::fillGraphicBufferColor(buffer, Rect{50, 0, 100, 100}, Color::BLUE);
Transaction()
.setBuffer(mLayer, buffer)
.setDataspace(mLayer, ui::Dataspace::V0_SRGB)
.setLayer(mLayer, INT32_MAX)
.apply();
}
virtual void TearDown() { LayerTransactionTest::TearDown(); }
void expectFiltered(Rect redRect, Rect blueRect) {
// Check that at least some of the pixels in the red rectangle aren't solid red
int redPixels = 0;
for (int x = redRect.left; x < redRect.right; x++) {
for (int y = redRect.top; y < redRect.bottom; y++) {
redPixels += mCapture->getPixelColor(static_cast<uint32_t>(x),
static_cast<uint32_t>(y)) == Color::RED;
}
}
ASSERT_LT(redPixels, redRect.getWidth() * redRect.getHeight());
// Check that at least some of the pixels in the blue rectangle aren't solid blue
int bluePixels = 0;
for (int x = blueRect.left; x < blueRect.right; x++) {
for (int y = blueRect.top; y < blueRect.bottom; y++) {
bluePixels += mCapture->getPixelColor(static_cast<uint32_t>(x),
static_cast<uint32_t>(y)) == Color::BLUE;
}
}
ASSERT_LT(bluePixels, blueRect.getWidth() * blueRect.getHeight());
}
sp<SurfaceControl> mParent;
sp<SurfaceControl> mLayer;
std::unique_ptr<ScreenCapture> mCapture;
gui::LayerCaptureArgs captureArgs;
};
TEST_F(TextureFilteringTest, NoFiltering) {
captureArgs.sourceCrop = Rect{0, 0, 100, 100};
captureArgs.layerHandle = mParent->getHandle();
ScreenCapture::captureLayers(&mCapture, captureArgs);
mCapture->expectColor(Rect{0, 0, 50, 100}, Color::RED);
mCapture->expectColor(Rect{50, 0, 100, 100}, Color::BLUE);
}
TEST_F(TextureFilteringTest, BufferCropNoFiltering) {
captureArgs.sourceCrop = Rect{0, 0, 100, 100};
captureArgs.layerHandle = mParent->getHandle();
ScreenCapture::captureLayers(&mCapture, captureArgs);
mCapture->expectColor(Rect{0, 0, 50, 100}, Color::RED);
mCapture->expectColor(Rect{50, 0, 100, 100}, Color::BLUE);
}
// Expect filtering because the buffer is stretched to the layer's bounds.
TEST_F(TextureFilteringTest, BufferCropIsFiltered) {
Transaction().setBufferCrop(mLayer, Rect{25, 25, 75, 75}).apply();
captureArgs.sourceCrop = Rect{0, 0, 100, 100};
captureArgs.layerHandle = mParent->getHandle();
ScreenCapture::captureLayers(&mCapture, captureArgs);
expectFiltered({0, 0, 50, 100}, {50, 0, 100, 100});
}
// Expect filtering because the output source crop is stretched to the output buffer's size.
TEST_F(TextureFilteringTest, OutputSourceCropIsFiltered) {
captureArgs.frameScaleX = 2;
captureArgs.frameScaleY = 2;
captureArgs.sourceCrop = Rect{25, 25, 75, 75};
captureArgs.layerHandle = mParent->getHandle();
ScreenCapture::captureLayers(&mCapture, captureArgs);
expectFiltered({0, 0, 50, 100}, {50, 0, 100, 100});
}
// Expect filtering because the layer crop and output source crop are stretched to the output
// buffer's size.
TEST_F(TextureFilteringTest, LayerCropOutputSourceCropIsFiltered) {
Transaction().setCrop(mLayer, Rect{25, 25, 75, 75}).apply();
captureArgs.frameScaleX = 2;
captureArgs.frameScaleY = 2;
captureArgs.sourceCrop = Rect{25, 25, 75, 75};
captureArgs.layerHandle = mParent->getHandle();
ScreenCapture::captureLayers(&mCapture, captureArgs);
expectFiltered({0, 0, 50, 100}, {50, 0, 100, 100});
}
// Expect filtering because the layer is scaled up.
TEST_F(TextureFilteringTest, LayerCaptureWithScalingIsFiltered) {
captureArgs.layerHandle = mLayer->getHandle();
captureArgs.frameScaleX = 2;
captureArgs.frameScaleY = 2;
ScreenCapture::captureLayers(&mCapture, captureArgs);
expectFiltered({0, 0, 100, 200}, {100, 0, 200, 200});
}
// Expect no filtering because the output buffer's size matches the source crop.
TEST_F(TextureFilteringTest, LayerCaptureOutputSourceCropNoFiltering) {
captureArgs.layerHandle = mLayer->getHandle();
captureArgs.sourceCrop = Rect{25, 25, 75, 75};
ScreenCapture::captureLayers(&mCapture, captureArgs);
mCapture->expectColor(Rect{0, 0, 25, 50}, Color::RED);
mCapture->expectColor(Rect{25, 0, 50, 50}, Color::BLUE);
}
// Expect no filtering because the output buffer's size matches the source crop (with a cropped
// layer).
TEST_F(TextureFilteringTest, LayerCaptureWithCropNoFiltering) {
Transaction().setCrop(mLayer, Rect{10, 10, 90, 90}).apply();
captureArgs.layerHandle = mLayer->getHandle();
captureArgs.sourceCrop = Rect{25, 25, 75, 75};
ScreenCapture::captureLayers(&mCapture, captureArgs);
mCapture->expectColor(Rect{0, 0, 25, 50}, Color::RED);
mCapture->expectColor(Rect{25, 0, 50, 50}, Color::BLUE);
}
// Expect no filtering because the output source crop and output buffer are the same size.
TEST_F(TextureFilteringTest, OutputSourceCropDisplayFrameMatchNoFiltering) {
captureArgs.layerHandle = mLayer->getHandle();
captureArgs.sourceCrop = Rect{25, 25, 75, 75};
ScreenCapture::captureLayers(&mCapture, captureArgs);
mCapture->expectColor(Rect{0, 0, 25, 50}, Color::RED);
mCapture->expectColor(Rect{25, 0, 50, 50}, Color::BLUE);
}
// Expect no filtering because the layer crop shouldn't scale the layer.
TEST_F(TextureFilteringTest, LayerCropDisplayFrameMatchNoFiltering) {
Transaction().setCrop(mLayer, Rect{25, 25, 75, 75}).apply();
captureArgs.layerHandle = mLayer->getHandle();
ScreenCapture::captureLayers(&mCapture, captureArgs);
mCapture->expectColor(Rect{25, 25, 50, 75}, Color::RED);
mCapture->expectColor(Rect{50, 25, 75, 75}, Color::BLUE);
}
// Expect no filtering because the parent layer crop shouldn't scale the layer.
TEST_F(TextureFilteringTest, ParentCropNoFiltering) {
Transaction().setCrop(mParent, Rect{25, 25, 75, 75}).apply();
captureArgs.layerHandle = mLayer->getHandle();
ScreenCapture::captureLayers(&mCapture, captureArgs);
mCapture->expectColor(Rect{25, 25, 50, 75}, Color::RED);
mCapture->expectColor(Rect{50, 25, 75, 75}, Color::BLUE);
}
// Expect no filtering because parent's position transform shouldn't scale the layer.
TEST_F(TextureFilteringTest, ParentHasTransformNoFiltering) {
Transaction().setPosition(mParent, 100, 100).apply();
captureArgs.layerHandle = mParent->getHandle();
captureArgs.sourceCrop = Rect{0, 0, 100, 100};
ScreenCapture::captureLayers(&mCapture, captureArgs);
mCapture->expectColor(Rect{0, 0, 50, 100}, Color::RED);
mCapture->expectColor(Rect{50, 0, 100, 100}, Color::BLUE);
}
} // namespace android
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