| /* |
| * Copyright (C) 2019 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. |
| */ |
| #pragma once |
| |
| #include <ui/Rect.h> |
| #include <utils/String8.h> |
| #include "TransactionUtils.h" |
| |
| namespace android { |
| |
| namespace { |
| |
| // A ScreenCapture is a screenshot from SurfaceFlinger that can be used to check |
| // individual pixel values for testing purposes. |
| class ScreenCapture : public RefBase { |
| public: |
| static void captureScreen(std::unique_ptr<ScreenCapture>* sc) { |
| captureScreen(sc, SurfaceComposerClient::getInternalDisplayToken()); |
| } |
| |
| static void captureScreen(std::unique_ptr<ScreenCapture>* sc, sp<IBinder> displayToken) { |
| const auto sf = ComposerService::getComposerService(); |
| SurfaceComposerClient::Transaction().apply(true); |
| |
| sp<GraphicBuffer> outBuffer; |
| ASSERT_EQ(NO_ERROR, sf->captureScreen(displayToken, &outBuffer, Rect(), 0, 0, false)); |
| *sc = std::make_unique<ScreenCapture>(outBuffer); |
| } |
| |
| static void captureLayers(std::unique_ptr<ScreenCapture>* sc, sp<IBinder>& parentHandle, |
| Rect crop = Rect::EMPTY_RECT, float frameScale = 1.0) { |
| sp<ISurfaceComposer> sf(ComposerService::getComposerService()); |
| SurfaceComposerClient::Transaction().apply(true); |
| |
| sp<GraphicBuffer> outBuffer; |
| ASSERT_EQ(NO_ERROR, sf->captureLayers(parentHandle, &outBuffer, crop, frameScale)); |
| *sc = std::make_unique<ScreenCapture>(outBuffer); |
| } |
| |
| static void captureChildLayers(std::unique_ptr<ScreenCapture>* sc, sp<IBinder>& parentHandle, |
| Rect crop = Rect::EMPTY_RECT, float frameScale = 1.0) { |
| sp<ISurfaceComposer> sf(ComposerService::getComposerService()); |
| SurfaceComposerClient::Transaction().apply(true); |
| |
| sp<GraphicBuffer> outBuffer; |
| ASSERT_EQ(NO_ERROR, sf->captureLayers(parentHandle, &outBuffer, crop, frameScale, true)); |
| *sc = std::make_unique<ScreenCapture>(outBuffer); |
| } |
| |
| static void captureChildLayersExcluding( |
| std::unique_ptr<ScreenCapture>* sc, sp<IBinder>& parentHandle, |
| std::unordered_set<sp<IBinder>, ISurfaceComposer::SpHash<IBinder>> excludeLayers) { |
| sp<ISurfaceComposer> sf(ComposerService::getComposerService()); |
| SurfaceComposerClient::Transaction().apply(true); |
| |
| sp<GraphicBuffer> outBuffer; |
| ASSERT_EQ(NO_ERROR, |
| sf->captureLayers(parentHandle, &outBuffer, ui::Dataspace::V0_SRGB, |
| ui::PixelFormat::RGBA_8888, Rect::EMPTY_RECT, excludeLayers, |
| 1.0f, true)); |
| *sc = std::make_unique<ScreenCapture>(outBuffer); |
| } |
| |
| void expectColor(const Rect& rect, const Color& color, uint8_t tolerance = 0) { |
| ASSERT_EQ(HAL_PIXEL_FORMAT_RGBA_8888, mOutBuffer->getPixelFormat()); |
| TransactionUtils::expectBufferColor(mOutBuffer, mPixels, rect, color, tolerance); |
| } |
| |
| void expectBorder(const Rect& rect, const Color& color, uint8_t tolerance = 0) { |
| ASSERT_EQ(HAL_PIXEL_FORMAT_RGBA_8888, mOutBuffer->getPixelFormat()); |
| const bool leftBorder = rect.left > 0; |
| const bool topBorder = rect.top > 0; |
| const bool rightBorder = rect.right < int32_t(mOutBuffer->getWidth()); |
| const bool bottomBorder = rect.bottom < int32_t(mOutBuffer->getHeight()); |
| |
| if (topBorder) { |
| Rect top(rect.left, rect.top - 1, rect.right, rect.top); |
| if (leftBorder) { |
| top.left -= 1; |
| } |
| if (rightBorder) { |
| top.right += 1; |
| } |
| expectColor(top, color, tolerance); |
| } |
| if (leftBorder) { |
| Rect left(rect.left - 1, rect.top, rect.left, rect.bottom); |
| expectColor(left, color, tolerance); |
| } |
| if (rightBorder) { |
| Rect right(rect.right, rect.top, rect.right + 1, rect.bottom); |
| expectColor(right, color, tolerance); |
| } |
| if (bottomBorder) { |
| Rect bottom(rect.left, rect.bottom, rect.right, rect.bottom + 1); |
| if (leftBorder) { |
| bottom.left -= 1; |
| } |
| if (rightBorder) { |
| bottom.right += 1; |
| } |
| expectColor(bottom, color, tolerance); |
| } |
| } |
| |
| void expectQuadrant(const Rect& rect, const Color& topLeft, const Color& topRight, |
| const Color& bottomLeft, const Color& bottomRight, bool filtered = false, |
| uint8_t tolerance = 0) { |
| ASSERT_TRUE((rect.right - rect.left) % 2 == 0 && (rect.bottom - rect.top) % 2 == 0); |
| |
| const int32_t centerX = rect.left + (rect.right - rect.left) / 2; |
| const int32_t centerY = rect.top + (rect.bottom - rect.top) / 2; |
| // avoid checking borders due to unspecified filtering behavior |
| const int32_t offsetX = filtered ? 2 : 0; |
| const int32_t offsetY = filtered ? 2 : 0; |
| expectColor(Rect(rect.left, rect.top, centerX - offsetX, centerY - offsetY), topLeft, |
| tolerance); |
| expectColor(Rect(centerX + offsetX, rect.top, rect.right, centerY - offsetY), topRight, |
| tolerance); |
| expectColor(Rect(rect.left, centerY + offsetY, centerX - offsetX, rect.bottom), bottomLeft, |
| tolerance); |
| expectColor(Rect(centerX + offsetX, centerY + offsetY, rect.right, rect.bottom), |
| bottomRight, tolerance); |
| } |
| |
| void checkPixel(uint32_t x, uint32_t y, uint8_t r, uint8_t g, uint8_t b) { |
| ASSERT_EQ(HAL_PIXEL_FORMAT_RGBA_8888, mOutBuffer->getPixelFormat()); |
| const uint8_t* pixel = mPixels + (4 * (y * mOutBuffer->getStride() + x)); |
| if (r != pixel[0] || g != pixel[1] || b != pixel[2]) { |
| String8 err(String8::format("pixel @ (%3d, %3d): " |
| "expected [%3d, %3d, %3d], got [%3d, %3d, %3d]", |
| x, y, r, g, b, pixel[0], pixel[1], pixel[2])); |
| EXPECT_EQ(String8(), err) << err.string(); |
| } |
| } |
| |
| void expectFGColor(uint32_t x, uint32_t y) { checkPixel(x, y, 195, 63, 63); } |
| |
| void expectBGColor(uint32_t x, uint32_t y) { checkPixel(x, y, 63, 63, 195); } |
| |
| void expectChildColor(uint32_t x, uint32_t y) { checkPixel(x, y, 200, 200, 200); } |
| |
| explicit ScreenCapture(const sp<GraphicBuffer>& outBuffer) : mOutBuffer(outBuffer) { |
| mOutBuffer->lock(GRALLOC_USAGE_SW_READ_OFTEN, reinterpret_cast<void**>(&mPixels)); |
| } |
| |
| ~ScreenCapture() { mOutBuffer->unlock(); } |
| |
| private: |
| sp<GraphicBuffer> mOutBuffer; |
| uint8_t* mPixels = nullptr; |
| }; |
| } // namespace |
| } // namespace android |