services/surfaceflinger/tests/Transaction_test.cpp - platform/frameworks/native - Git at Google

 /*
  * Copyright (C) 2011 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 <gtest/gtest.h>

 #include <binder/IMemory.h>

 #include <gui/ISurfaceComposer.h>
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
 #include <private/gui/ComposerService.h>

 #include <utils/String8.h>
 #include <ui/DisplayInfo.h>

 namespace android {

 // Fill an RGBA_8888 formatted surface with a single color.
 static void fillSurfaceRGBA8(const sp<SurfaceControl>& sc,
         uint8_t r, uint8_t g, uint8_t b) {
     ANativeWindow_Buffer outBuffer;
     sp<Surface> s = sc->getSurface();
     ASSERT_TRUE(s != NULL);
     ASSERT_EQ(NO_ERROR, s->lock(&outBuffer, NULL));
     uint8_t* img = reinterpret_cast<uint8_t*>(outBuffer.bits);
     for (uint32_t y = 0; y < outBuffer.height; y++) {
         for (uint32_t x = 0; x < outBuffer.width; x++) {
             uint8_t* pixel = img + (4 * (y*outBuffer.stride + x));
             pixel[0] = r;
             pixel[1] = g;
             pixel[2] = b;
             pixel[3] = 255;
         }
     }
     ASSERT_EQ(NO_ERROR, s->unlockAndPost());
 }

 // 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(sp<ScreenCapture>* sc) {
         sp<IMemoryHeap> heap;
         uint32_t w=0, h=0;
         PixelFormat fmt=0;
         sp<ISurfaceComposer> sf(ComposerService::getComposerService());
         sp<IBinder> display(sf->getBuiltInDisplay(ISurfaceComposer::eDisplayIdMain));
         ASSERT_EQ(NO_ERROR, sf->captureScreen(display, &heap, &w, &h, &fmt, 0, 0,
                 0, INT_MAX));
         ASSERT_TRUE(heap != NULL);
         ASSERT_EQ(PIXEL_FORMAT_RGBA_8888, fmt);
         *sc = new ScreenCapture(w, h, heap);
     }

     void checkPixel(uint32_t x, uint32_t y, uint8_t r, uint8_t g, uint8_t b) {
         const uint8_t* img = reinterpret_cast<const uint8_t*>(mHeap->base());
         const uint8_t* pixel = img + (4 * (y*mWidth + 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);
         }
     }

 private:
     ScreenCapture(uint32_t w, uint32_t h, const sp<IMemoryHeap>& heap) :
         mWidth(w),
         mHeight(h),
         mHeap(heap)
     {}

     const uint32_t mWidth;
     const uint32_t mHeight;
     sp<IMemoryHeap> mHeap;
 };

 class LayerUpdateTest : public ::testing::Test {
 protected:
     virtual void SetUp() {
         mComposerClient = new SurfaceComposerClient;
         ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());

         sp<IBinder> display(SurfaceComposerClient::getBuiltInDisplay(
                 ISurfaceComposer::eDisplayIdMain));
         DisplayInfo info;
         SurfaceComposerClient::getDisplayInfo(display, &info);

         ssize_t displayWidth = info.w;
         ssize_t displayHeight = info.h;

         // Background surface
         mBGSurfaceControl = mComposerClient->createSurface(
                 String8("BG Test Surface"), displayWidth, displayHeight,
                 PIXEL_FORMAT_RGBA_8888, 0);
         ASSERT_TRUE(mBGSurfaceControl != NULL);
         ASSERT_TRUE(mBGSurfaceControl->isValid());
         fillSurfaceRGBA8(mBGSurfaceControl, 63, 63, 195);

         // Foreground surface
         mFGSurfaceControl = mComposerClient->createSurface(
                 String8("FG Test Surface"), 64, 64, PIXEL_FORMAT_RGBA_8888, 0);
         ASSERT_TRUE(mFGSurfaceControl != NULL);
         ASSERT_TRUE(mFGSurfaceControl->isValid());

         fillSurfaceRGBA8(mFGSurfaceControl, 195, 63, 63);

         // Synchronization surface
         mSyncSurfaceControl = mComposerClient->createSurface(
                 String8("Sync Test Surface"), 1, 1, PIXEL_FORMAT_RGBA_8888, 0);
         ASSERT_TRUE(mSyncSurfaceControl != NULL);
         ASSERT_TRUE(mSyncSurfaceControl->isValid());

         fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);

         SurfaceComposerClient::openGlobalTransaction();

         ASSERT_EQ(NO_ERROR, mBGSurfaceControl->setLayer(INT_MAX-2));
         ASSERT_EQ(NO_ERROR, mBGSurfaceControl->show());

         ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setLayer(INT_MAX-1));
         ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setPosition(64, 64));
         ASSERT_EQ(NO_ERROR, mFGSurfaceControl->show());

         ASSERT_EQ(NO_ERROR, mSyncSurfaceControl->setLayer(INT_MAX-1));
         ASSERT_EQ(NO_ERROR, mSyncSurfaceControl->setPosition(displayWidth-2,
                 displayHeight-2));
         ASSERT_EQ(NO_ERROR, mSyncSurfaceControl->show());

         SurfaceComposerClient::closeGlobalTransaction(true);
     }

     virtual void TearDown() {
         mComposerClient->dispose();
         mBGSurfaceControl = 0;
         mFGSurfaceControl = 0;
         mSyncSurfaceControl = 0;
         mComposerClient = 0;
     }

     void waitForPostedBuffers() {
         // Since the sync surface is in synchronous mode (i.e. double buffered)
         // posting three buffers to it should ensure that at least two
         // SurfaceFlinger::handlePageFlip calls have been made, which should
         // guaranteed that a buffer posted to another Surface has been retired.
         fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);
         fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);
         fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);
     }

     sp<SurfaceComposerClient> mComposerClient;
     sp<SurfaceControl> mBGSurfaceControl;
     sp<SurfaceControl> mFGSurfaceControl;

     // This surface is used to ensure that the buffers posted to
     // mFGSurfaceControl have been picked up by SurfaceFlinger.
     sp<SurfaceControl> mSyncSurfaceControl;
 };

 TEST_F(LayerUpdateTest, LayerMoveWorks) {
     sp<ScreenCapture> sc;
     {
         SCOPED_TRACE("before move");
         ScreenCapture::captureScreen(&sc);
         sc->checkPixel(  0,  12,  63,  63, 195);
         sc->checkPixel( 75,  75, 195,  63,  63);
         sc->checkPixel(145, 145,  63,  63, 195);
     }

     SurfaceComposerClient::openGlobalTransaction();
     ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setPosition(128, 128));
     SurfaceComposerClient::closeGlobalTransaction(true);
     {
         // This should reflect the new position, but not the new color.
         SCOPED_TRACE("after move, before redraw");
         ScreenCapture::captureScreen(&sc);
         sc->checkPixel( 24,  24,  63,  63, 195);
         sc->checkPixel( 75,  75,  63,  63, 195);
         sc->checkPixel(145, 145, 195,  63,  63);
     }

     fillSurfaceRGBA8(mFGSurfaceControl, 63, 195, 63);
     waitForPostedBuffers();
     {
         // This should reflect the new position and the new color.
         SCOPED_TRACE("after redraw");
         ScreenCapture::captureScreen(&sc);
         sc->checkPixel( 24,  24,  63,  63, 195);
         sc->checkPixel( 75,  75,  63,  63, 195);
         sc->checkPixel(145, 145,  63, 195,  63);
     }
 }

 TEST_F(LayerUpdateTest, LayerResizeWorks) {
     sp<ScreenCapture> sc;
     {
         SCOPED_TRACE("before resize");
         ScreenCapture::captureScreen(&sc);
         sc->checkPixel(  0,  12,  63,  63, 195);
         sc->checkPixel( 75,  75, 195,  63,  63);
         sc->checkPixel(145, 145,  63,  63, 195);
     }

     ALOGD("resizing");
     SurfaceComposerClient::openGlobalTransaction();
     ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setSize(128, 128));
     SurfaceComposerClient::closeGlobalTransaction(true);
     ALOGD("resized");
     {
         // This should not reflect the new size or color because SurfaceFlinger
         // has not yet received a buffer of the correct size.
         SCOPED_TRACE("after resize, before redraw");
         ScreenCapture::captureScreen(&sc);
         sc->checkPixel(  0,  12,  63,  63, 195);
         sc->checkPixel( 75,  75, 195,  63,  63);
         sc->checkPixel(145, 145,  63,  63, 195);
     }

     ALOGD("drawing");
     fillSurfaceRGBA8(mFGSurfaceControl, 63, 195, 63);
     waitForPostedBuffers();
     ALOGD("drawn");
     {
         // This should reflect the new size and the new color.
         SCOPED_TRACE("after redraw");
         ScreenCapture::captureScreen(&sc);
         sc->checkPixel( 24,  24,  63,  63, 195);
         sc->checkPixel( 75,  75,  63, 195,  63);
         sc->checkPixel(145, 145,  63, 195,  63);
     }
 }

 }
	/*
	* Copyright (C) 2011 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 <gtest/gtest.h>

	#include <binder/IMemory.h>

	#include <gui/ISurfaceComposer.h>
	#include <gui/Surface.h>
	#include <gui/SurfaceComposerClient.h>
	#include <private/gui/ComposerService.h>

	#include <utils/String8.h>
	#include <ui/DisplayInfo.h>

	namespace android {

	// Fill an RGBA_8888 formatted surface with a single color.
	static void fillSurfaceRGBA8(const sp<SurfaceControl>& sc,
	uint8_t r, uint8_t g, uint8_t b) {
	ANativeWindow_Buffer outBuffer;
	sp<Surface> s = sc->getSurface();
	ASSERT_TRUE(s != NULL);
	ASSERT_EQ(NO_ERROR, s->lock(&outBuffer, NULL));
	uint8_t* img = reinterpret_cast<uint8_t*>(outBuffer.bits);
	for (uint32_t y = 0; y < outBuffer.height; y++) {
	for (uint32_t x = 0; x < outBuffer.width; x++) {
	uint8_t* pixel = img + (4 * (y*outBuffer.stride + x));
	pixel[0] = r;
	pixel[1] = g;
	pixel[2] = b;
	pixel[3] = 255;
	}
	}
	ASSERT_EQ(NO_ERROR, s->unlockAndPost());
	}

	// 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(sp<ScreenCapture>* sc) {
	sp<IMemoryHeap> heap;
	uint32_t w=0, h=0;
	PixelFormat fmt=0;
	sp<ISurfaceComposer> sf(ComposerService::getComposerService());
	sp<IBinder> display(sf->getBuiltInDisplay(ISurfaceComposer::eDisplayIdMain));
	ASSERT_EQ(NO_ERROR, sf->captureScreen(display, &heap, &w, &h, &fmt, 0, 0,
	0, INT_MAX));
	ASSERT_TRUE(heap != NULL);
	ASSERT_EQ(PIXEL_FORMAT_RGBA_8888, fmt);
	*sc = new ScreenCapture(w, h, heap);
	}

	void checkPixel(uint32_t x, uint32_t y, uint8_t r, uint8_t g, uint8_t b) {
	const uint8_t* img = reinterpret_cast<const uint8_t*>(mHeap->base());
	const uint8_t* pixel = img + (4 * (y*mWidth + 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);
	}
	}

	private:
	ScreenCapture(uint32_t w, uint32_t h, const sp<IMemoryHeap>& heap) :
	mWidth(w),
	mHeight(h),
	mHeap(heap)
	{}

	const uint32_t mWidth;
	const uint32_t mHeight;
	sp<IMemoryHeap> mHeap;
	};

	class LayerUpdateTest : public ::testing::Test {
	protected:
	virtual void SetUp() {
	mComposerClient = new SurfaceComposerClient;
	ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());

	sp<IBinder> display(SurfaceComposerClient::getBuiltInDisplay(
	ISurfaceComposer::eDisplayIdMain));
	DisplayInfo info;
	SurfaceComposerClient::getDisplayInfo(display, &info);

	ssize_t displayWidth = info.w;
	ssize_t displayHeight = info.h;

	// Background surface
	mBGSurfaceControl = mComposerClient->createSurface(
	String8("BG Test Surface"), displayWidth, displayHeight,
	PIXEL_FORMAT_RGBA_8888, 0);
	ASSERT_TRUE(mBGSurfaceControl != NULL);
	ASSERT_TRUE(mBGSurfaceControl->isValid());
	fillSurfaceRGBA8(mBGSurfaceControl, 63, 63, 195);

	// Foreground surface
	mFGSurfaceControl = mComposerClient->createSurface(
	String8("FG Test Surface"), 64, 64, PIXEL_FORMAT_RGBA_8888, 0);
	ASSERT_TRUE(mFGSurfaceControl != NULL);
	ASSERT_TRUE(mFGSurfaceControl->isValid());

	fillSurfaceRGBA8(mFGSurfaceControl, 195, 63, 63);

	// Synchronization surface
	mSyncSurfaceControl = mComposerClient->createSurface(
	String8("Sync Test Surface"), 1, 1, PIXEL_FORMAT_RGBA_8888, 0);
	ASSERT_TRUE(mSyncSurfaceControl != NULL);
	ASSERT_TRUE(mSyncSurfaceControl->isValid());

	fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);

	SurfaceComposerClient::openGlobalTransaction();

	ASSERT_EQ(NO_ERROR, mBGSurfaceControl->setLayer(INT_MAX-2));
	ASSERT_EQ(NO_ERROR, mBGSurfaceControl->show());

	ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setLayer(INT_MAX-1));
	ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setPosition(64, 64));
	ASSERT_EQ(NO_ERROR, mFGSurfaceControl->show());

	ASSERT_EQ(NO_ERROR, mSyncSurfaceControl->setLayer(INT_MAX-1));
	ASSERT_EQ(NO_ERROR, mSyncSurfaceControl->setPosition(displayWidth-2,
	displayHeight-2));
	ASSERT_EQ(NO_ERROR, mSyncSurfaceControl->show());

	SurfaceComposerClient::closeGlobalTransaction(true);
	}

	virtual void TearDown() {
	mComposerClient->dispose();
	mBGSurfaceControl = 0;
	mFGSurfaceControl = 0;
	mSyncSurfaceControl = 0;
	mComposerClient = 0;
	}

	void waitForPostedBuffers() {
	// Since the sync surface is in synchronous mode (i.e. double buffered)
	// posting three buffers to it should ensure that at least two
	// SurfaceFlinger::handlePageFlip calls have been made, which should
	// guaranteed that a buffer posted to another Surface has been retired.
	fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);
	fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);
	fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);
	}

	sp<SurfaceComposerClient> mComposerClient;
	sp<SurfaceControl> mBGSurfaceControl;
	sp<SurfaceControl> mFGSurfaceControl;

	// This surface is used to ensure that the buffers posted to
	// mFGSurfaceControl have been picked up by SurfaceFlinger.
	sp<SurfaceControl> mSyncSurfaceControl;
	};

	TEST_F(LayerUpdateTest, LayerMoveWorks) {
	sp<ScreenCapture> sc;
	{
	SCOPED_TRACE("before move");
	ScreenCapture::captureScreen(&sc);
	sc->checkPixel( 0, 12, 63, 63, 195);
	sc->checkPixel( 75, 75, 195, 63, 63);
	sc->checkPixel(145, 145, 63, 63, 195);
	}

	SurfaceComposerClient::openGlobalTransaction();
	ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setPosition(128, 128));
	SurfaceComposerClient::closeGlobalTransaction(true);
	{
	// This should reflect the new position, but not the new color.
	SCOPED_TRACE("after move, before redraw");
	ScreenCapture::captureScreen(&sc);
	sc->checkPixel( 24, 24, 63, 63, 195);
	sc->checkPixel( 75, 75, 63, 63, 195);
	sc->checkPixel(145, 145, 195, 63, 63);
	}

	fillSurfaceRGBA8(mFGSurfaceControl, 63, 195, 63);
	waitForPostedBuffers();
	{
	// This should reflect the new position and the new color.
	SCOPED_TRACE("after redraw");
	ScreenCapture::captureScreen(&sc);
	sc->checkPixel( 24, 24, 63, 63, 195);
	sc->checkPixel( 75, 75, 63, 63, 195);
	sc->checkPixel(145, 145, 63, 195, 63);
	}
	}

	TEST_F(LayerUpdateTest, LayerResizeWorks) {
	sp<ScreenCapture> sc;
	{
	SCOPED_TRACE("before resize");
	ScreenCapture::captureScreen(&sc);
	sc->checkPixel( 0, 12, 63, 63, 195);
	sc->checkPixel( 75, 75, 195, 63, 63);
	sc->checkPixel(145, 145, 63, 63, 195);
	}

	ALOGD("resizing");
	SurfaceComposerClient::openGlobalTransaction();
	ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setSize(128, 128));
	SurfaceComposerClient::closeGlobalTransaction(true);
	ALOGD("resized");
	{
	// This should not reflect the new size or color because SurfaceFlinger
	// has not yet received a buffer of the correct size.
	SCOPED_TRACE("after resize, before redraw");
	ScreenCapture::captureScreen(&sc);
	sc->checkPixel( 0, 12, 63, 63, 195);
	sc->checkPixel( 75, 75, 195, 63, 63);
	sc->checkPixel(145, 145, 63, 63, 195);
	}

	ALOGD("drawing");
	fillSurfaceRGBA8(mFGSurfaceControl, 63, 195, 63);
	waitForPostedBuffers();
	ALOGD("drawn");
	{
	// This should reflect the new size and the new color.
	SCOPED_TRACE("after redraw");
	ScreenCapture::captureScreen(&sc);
	sc->checkPixel( 24, 24, 63, 63, 195);
	sc->checkPixel( 75, 75, 63, 195, 63);
	sc->checkPixel(145, 145, 63, 195, 63);
	}
	}

	}