Jamie Gennis | 4f19243 | 2011-10-11 19:22:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <gtest/gtest.h> |
| 18 | |
| 19 | #include <binder/IMemory.h> |
| 20 | #include <surfaceflinger/ISurfaceComposer.h> |
| 21 | #include <surfaceflinger/Surface.h> |
| 22 | #include <surfaceflinger/SurfaceComposerClient.h> |
| 23 | #include <utils/String8.h> |
| 24 | |
| 25 | namespace android { |
| 26 | |
| 27 | // Fill an RGBA_8888 formatted surface with a single color. |
| 28 | static void fillSurfaceRGBA8(const sp<SurfaceControl>& sc, |
| 29 | uint8_t r, uint8_t g, uint8_t b) { |
| 30 | Surface::SurfaceInfo info; |
| 31 | sp<Surface> s = sc->getSurface(); |
| 32 | ASSERT_TRUE(s != NULL); |
| 33 | ASSERT_EQ(NO_ERROR, s->lock(&info)); |
| 34 | uint8_t* img = reinterpret_cast<uint8_t*>(info.bits); |
| 35 | for (uint32_t y = 0; y < info.h; y++) { |
| 36 | for (uint32_t x = 0; x < info.w; x++) { |
| 37 | uint8_t* pixel = img + (4 * (y*info.s + x)); |
| 38 | pixel[0] = r; |
| 39 | pixel[1] = g; |
| 40 | pixel[2] = b; |
| 41 | pixel[3] = 255; |
| 42 | } |
| 43 | } |
| 44 | ASSERT_EQ(NO_ERROR, s->unlockAndPost()); |
| 45 | } |
| 46 | |
| 47 | // A ScreenCapture is a screenshot from SurfaceFlinger that can be used to check |
| 48 | // individual pixel values for testing purposes. |
| 49 | class ScreenCapture : public RefBase { |
| 50 | public: |
| 51 | static void captureScreen(sp<ScreenCapture>* sc) { |
| 52 | sp<IMemoryHeap> heap; |
| 53 | uint32_t w=0, h=0; |
| 54 | PixelFormat fmt=0; |
| 55 | sp<ISurfaceComposer> sf(ComposerService::getComposerService()); |
| 56 | ASSERT_EQ(NO_ERROR, sf->captureScreen(0, &heap, &w, &h, &fmt, 0, 0, |
| 57 | 0, INT_MAX)); |
| 58 | ASSERT_TRUE(heap != NULL); |
| 59 | ASSERT_EQ(PIXEL_FORMAT_RGBA_8888, fmt); |
| 60 | *sc = new ScreenCapture(w, h, heap); |
| 61 | } |
| 62 | |
| 63 | void checkPixel(uint32_t x, uint32_t y, uint8_t r, uint8_t g, uint8_t b) { |
| 64 | const uint8_t* img = reinterpret_cast<const uint8_t*>(mHeap->base()); |
| 65 | const uint8_t* pixel = img + (4 * (y*mWidth + x)); |
| 66 | if (r != pixel[0] || g != pixel[1] || b != pixel[2]) { |
| 67 | String8 err(String8::format("pixel @ (%3d, %3d): " |
| 68 | "expected [%3d, %3d, %3d], got [%3d, %3d, %3d]", |
| 69 | x, y, r, g, b, pixel[0], pixel[1], pixel[2])); |
| 70 | EXPECT_EQ(String8(), err); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | private: |
| 75 | ScreenCapture(uint32_t w, uint32_t h, const sp<IMemoryHeap>& heap) : |
| 76 | mWidth(w), |
| 77 | mHeight(h), |
| 78 | mHeap(heap) |
| 79 | {} |
| 80 | |
| 81 | const uint32_t mWidth; |
| 82 | const uint32_t mHeight; |
| 83 | sp<IMemoryHeap> mHeap; |
| 84 | }; |
| 85 | |
| 86 | class LayerUpdateTest : public ::testing::Test { |
| 87 | protected: |
| 88 | virtual void SetUp() { |
| 89 | mComposerClient = new SurfaceComposerClient; |
| 90 | ASSERT_EQ(NO_ERROR, mComposerClient->initCheck()); |
| 91 | |
| 92 | ssize_t displayWidth = mComposerClient->getDisplayWidth(0); |
| 93 | ssize_t displayHeight = mComposerClient->getDisplayHeight(0); |
| 94 | |
| 95 | // Background surface |
| 96 | mBGSurfaceControl = mComposerClient->createSurface( |
| 97 | String8("BG Test Surface"), 0, displayWidth, displayHeight, |
| 98 | PIXEL_FORMAT_RGBA_8888, 0); |
| 99 | ASSERT_TRUE(mBGSurfaceControl != NULL); |
| 100 | ASSERT_TRUE(mBGSurfaceControl->isValid()); |
| 101 | fillSurfaceRGBA8(mBGSurfaceControl, 63, 63, 195); |
| 102 | |
| 103 | // Foreground surface |
| 104 | mFGSurfaceControl = mComposerClient->createSurface( |
| 105 | String8("FG Test Surface"), 0, 64, 64, PIXEL_FORMAT_RGBA_8888, 0); |
| 106 | ASSERT_TRUE(mFGSurfaceControl != NULL); |
| 107 | ASSERT_TRUE(mFGSurfaceControl->isValid()); |
| 108 | |
| 109 | fillSurfaceRGBA8(mFGSurfaceControl, 195, 63, 63); |
| 110 | |
| 111 | // Synchronization surface |
| 112 | mSyncSurfaceControl = mComposerClient->createSurface( |
| 113 | String8("Sync Test Surface"), 0, 1, 1, PIXEL_FORMAT_RGBA_8888, 0); |
| 114 | ASSERT_TRUE(mSyncSurfaceControl != NULL); |
| 115 | ASSERT_TRUE(mSyncSurfaceControl->isValid()); |
| 116 | |
| 117 | fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31); |
| 118 | |
| 119 | SurfaceComposerClient::openGlobalTransaction(); |
| 120 | |
| 121 | ASSERT_EQ(NO_ERROR, mBGSurfaceControl->setLayer(INT_MAX-2)); |
| 122 | ASSERT_EQ(NO_ERROR, mBGSurfaceControl->show()); |
| 123 | |
| 124 | ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setLayer(INT_MAX-1)); |
| 125 | ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setPosition(64, 64)); |
| 126 | ASSERT_EQ(NO_ERROR, mFGSurfaceControl->show()); |
| 127 | |
| 128 | ASSERT_EQ(NO_ERROR, mSyncSurfaceControl->setLayer(INT_MAX-1)); |
| 129 | ASSERT_EQ(NO_ERROR, mSyncSurfaceControl->setPosition(displayWidth-2, |
| 130 | displayHeight-2)); |
| 131 | ASSERT_EQ(NO_ERROR, mSyncSurfaceControl->show()); |
| 132 | |
| 133 | SurfaceComposerClient::closeGlobalTransaction(true); |
| 134 | } |
| 135 | |
| 136 | virtual void TearDown() { |
| 137 | mComposerClient->dispose(); |
| 138 | mBGSurfaceControl = 0; |
| 139 | mFGSurfaceControl = 0; |
| 140 | mSyncSurfaceControl = 0; |
| 141 | mComposerClient = 0; |
| 142 | } |
| 143 | |
| 144 | void waitForPostedBuffers() { |
| 145 | // Since the sync surface is in synchronous mode (i.e. double buffered) |
| 146 | // posting three buffers to it should ensure that at least two |
| 147 | // SurfaceFlinger::handlePageFlip calls have been made, which should |
| 148 | // guaranteed that a buffer posted to another Surface has been retired. |
| 149 | fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31); |
| 150 | fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31); |
| 151 | fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31); |
| 152 | } |
| 153 | |
| 154 | sp<SurfaceComposerClient> mComposerClient; |
| 155 | sp<SurfaceControl> mBGSurfaceControl; |
| 156 | sp<SurfaceControl> mFGSurfaceControl; |
| 157 | |
| 158 | // This surface is used to ensure that the buffers posted to |
| 159 | // mFGSurfaceControl have been picked up by SurfaceFlinger. |
| 160 | sp<SurfaceControl> mSyncSurfaceControl; |
| 161 | }; |
| 162 | |
| 163 | TEST_F(LayerUpdateTest, LayerMoveWorks) { |
| 164 | sp<ScreenCapture> sc; |
| 165 | { |
| 166 | SCOPED_TRACE("before move"); |
| 167 | ScreenCapture::captureScreen(&sc); |
| 168 | sc->checkPixel( 0, 12, 63, 63, 195); |
| 169 | sc->checkPixel( 75, 75, 195, 63, 63); |
| 170 | sc->checkPixel(145, 145, 63, 63, 195); |
| 171 | } |
| 172 | |
| 173 | SurfaceComposerClient::openGlobalTransaction(); |
| 174 | ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setPosition(128, 128)); |
| 175 | SurfaceComposerClient::closeGlobalTransaction(true); |
| 176 | { |
| 177 | // This should reflect the new position, but not the new color. |
| 178 | SCOPED_TRACE("after move, before redraw"); |
| 179 | ScreenCapture::captureScreen(&sc); |
| 180 | sc->checkPixel( 24, 24, 63, 63, 195); |
| 181 | sc->checkPixel( 75, 75, 63, 63, 195); |
| 182 | sc->checkPixel(145, 145, 195, 63, 63); |
| 183 | } |
| 184 | |
| 185 | fillSurfaceRGBA8(mFGSurfaceControl, 63, 195, 63); |
| 186 | waitForPostedBuffers(); |
| 187 | { |
| 188 | // This should reflect the new position and the new color. |
| 189 | SCOPED_TRACE("after redraw"); |
| 190 | ScreenCapture::captureScreen(&sc); |
| 191 | sc->checkPixel( 24, 24, 63, 63, 195); |
| 192 | sc->checkPixel( 75, 75, 63, 63, 195); |
| 193 | sc->checkPixel(145, 145, 63, 195, 63); |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | TEST_F(LayerUpdateTest, LayerResizeWorks) { |
| 198 | sp<ScreenCapture> sc; |
| 199 | { |
| 200 | SCOPED_TRACE("before resize"); |
| 201 | ScreenCapture::captureScreen(&sc); |
| 202 | sc->checkPixel( 0, 12, 63, 63, 195); |
| 203 | sc->checkPixel( 75, 75, 195, 63, 63); |
| 204 | sc->checkPixel(145, 145, 63, 63, 195); |
| 205 | } |
| 206 | |
| 207 | LOGD("resizing"); |
| 208 | SurfaceComposerClient::openGlobalTransaction(); |
| 209 | ASSERT_EQ(NO_ERROR, mFGSurfaceControl->setSize(128, 128)); |
| 210 | SurfaceComposerClient::closeGlobalTransaction(true); |
| 211 | LOGD("resized"); |
| 212 | { |
| 213 | // This should not reflect the new size or color because SurfaceFlinger |
| 214 | // has not yet received a buffer of the correct size. |
| 215 | SCOPED_TRACE("after resize, before redraw"); |
| 216 | ScreenCapture::captureScreen(&sc); |
| 217 | sc->checkPixel( 0, 12, 63, 63, 195); |
| 218 | sc->checkPixel( 75, 75, 195, 63, 63); |
| 219 | sc->checkPixel(145, 145, 63, 63, 195); |
| 220 | } |
| 221 | |
| 222 | LOGD("drawing"); |
| 223 | fillSurfaceRGBA8(mFGSurfaceControl, 63, 195, 63); |
| 224 | waitForPostedBuffers(); |
| 225 | LOGD("drawn"); |
| 226 | { |
| 227 | // This should reflect the new size and the new color. |
| 228 | SCOPED_TRACE("after redraw"); |
| 229 | ScreenCapture::captureScreen(&sc); |
| 230 | sc->checkPixel( 24, 24, 63, 63, 195); |
| 231 | sc->checkPixel( 75, 75, 63, 195, 63); |
| 232 | sc->checkPixel(145, 145, 63, 195, 63); |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | } |