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/*
* 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 <algorithm>
#include <functional>
#include <limits>
#include <ostream>
#include <gtest/gtest.h>
#include <android/native_window.h>
#include <gui/ISurfaceComposer.h>
#include <gui/LayerState.h>
#include <gui/Surface.h>
#include <gui/SurfaceComposerClient.h>
#include <private/gui/ComposerService.h>
#include <private/android_filesystem_config.h>
#include <ui/DisplayInfo.h>
#include <ui/Rect.h>
#include <utils/String8.h>
#include <math.h>
#include <math/vec3.h>
#include <sys/types.h>
#include <unistd.h>
namespace android {
namespace {
struct Color {
uint8_t r;
uint8_t g;
uint8_t b;
uint8_t a;
static const Color RED;
static const Color GREEN;
static const Color BLUE;
static const Color WHITE;
static const Color BLACK;
static const Color TRANSPARENT;
};
const Color Color::RED{255, 0, 0, 255};
const Color Color::GREEN{0, 255, 0, 255};
const Color Color::BLUE{0, 0, 255, 255};
const Color Color::WHITE{255, 255, 255, 255};
const Color Color::BLACK{0, 0, 0, 255};
const Color Color::TRANSPARENT{0, 0, 0, 0};
std::ostream& operator<<(std::ostream& os, const Color& color) {
os << int(color.r) << ", " << int(color.g) << ", " << int(color.b) << ", " << int(color.a);
return os;
}
// Fill a region with the specified color.
void fillANativeWindowBufferColor(const ANativeWindow_Buffer& buffer, const Rect& rect,
const Color& color) {
Rect r(0, 0, buffer.width, buffer.height);
if (!r.intersect(rect, &r)) {
return;
}
int32_t width = r.right - r.left;
int32_t height = r.bottom - r.top;
for (int32_t row = 0; row < height; row++) {
uint8_t* dst =
static_cast<uint8_t*>(buffer.bits) + (buffer.stride * (r.top + row) + r.left) * 4;
for (int32_t column = 0; column < width; column++) {
dst[0] = color.r;
dst[1] = color.g;
dst[2] = color.b;
dst[3] = color.a;
dst += 4;
}
}
}
// Fill a region with the specified color.
void fillBufferColor(const ANativeWindow_Buffer& buffer, const Rect& rect, const Color& color) {
int32_t x = rect.left;
int32_t y = rect.top;
int32_t width = rect.right - rect.left;
int32_t height = rect.bottom - rect.top;
if (x < 0) {
width += x;
x = 0;
}
if (y < 0) {
height += y;
y = 0;
}
if (x + width > buffer.width) {
x = std::min(x, buffer.width);
width = buffer.width - x;
}
if (y + height > buffer.height) {
y = std::min(y, buffer.height);
height = buffer.height - y;
}
for (int32_t j = 0; j < height; j++) {
uint8_t* dst = static_cast<uint8_t*>(buffer.bits) + (buffer.stride * (y + j) + x) * 4;
for (int32_t i = 0; i < width; i++) {
dst[0] = color.r;
dst[1] = color.g;
dst[2] = color.b;
dst[3] = color.a;
dst += 4;
}
}
}
// Check if a region has the specified color.
void expectBufferColor(const sp<GraphicBuffer>& outBuffer, uint8_t* pixels, const Rect& rect,
const Color& color, uint8_t tolerance) {
int32_t x = rect.left;
int32_t y = rect.top;
int32_t width = rect.right - rect.left;
int32_t height = rect.bottom - rect.top;
int32_t bufferWidth = int32_t(outBuffer->getWidth());
int32_t bufferHeight = int32_t(outBuffer->getHeight());
if (x + width > bufferWidth) {
x = std::min(x, bufferWidth);
width = bufferWidth - x;
}
if (y + height > bufferHeight) {
y = std::min(y, bufferHeight);
height = bufferHeight - y;
}
auto colorCompare = [tolerance](uint8_t a, uint8_t b) {
uint8_t tmp = a >= b ? a - b : b - a;
return tmp <= tolerance;
};
for (int32_t j = 0; j < height; j++) {
const uint8_t* src = pixels + (outBuffer->getStride() * (y + j) + x) * 4;
for (int32_t i = 0; i < width; i++) {
const uint8_t expected[4] = {color.r, color.g, color.b, color.a};
EXPECT_TRUE(std::equal(src, src + 4, expected, colorCompare))
<< "pixel @ (" << x + i << ", " << y + j << "): "
<< "expected (" << color << "), "
<< "got (" << Color{src[0], src[1], src[2], src[3]} << ")";
src += 4;
}
}
}
} // anonymous namespace
using Transaction = SurfaceComposerClient::Transaction;
// 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,
bool unlock = true) {
ANativeWindow_Buffer outBuffer;
sp<Surface> s = sc->getSurface();
ASSERT_TRUE(s != nullptr);
ASSERT_EQ(NO_ERROR, s->lock(&outBuffer, nullptr));
uint8_t* img = reinterpret_cast<uint8_t*>(outBuffer.bits);
for (int y = 0; y < outBuffer.height; y++) {
for (int 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;
}
}
if (unlock) {
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, int32_t minLayerZ = 0,
int32_t maxLayerZ = std::numeric_limits<int32_t>::max()) {
sp<ISurfaceComposer> sf(ComposerService::getComposerService());
sp<IBinder> display(sf->getBuiltInDisplay(ISurfaceComposer::eDisplayIdMain));
SurfaceComposerClient::Transaction().apply(true);
sp<GraphicBuffer> outBuffer;
ASSERT_EQ(NO_ERROR,
sf->captureScreen(display, &outBuffer, Rect(), 0, 0, minLayerZ, maxLayerZ,
false));
*sc = new 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);
}
void expectColor(const Rect& rect, const Color& color, uint8_t tolerance = 0) {
ASSERT_EQ(HAL_PIXEL_FORMAT_RGBA_8888, mOutBuffer->getPixelFormat());
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); }
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;
};
class LayerTransactionTest : public ::testing::Test {
protected:
void SetUp() override {
mClient = new SurfaceComposerClient;
ASSERT_EQ(NO_ERROR, mClient->initCheck()) << "failed to create SurfaceComposerClient";
ASSERT_NO_FATAL_FAILURE(SetUpDisplay());
}
sp<SurfaceControl> createLayer(const char* name, uint32_t width, uint32_t height,
uint32_t flags = 0) {
auto layer =
mClient->createSurface(String8(name), width, height, PIXEL_FORMAT_RGBA_8888, flags);
EXPECT_NE(nullptr, layer.get()) << "failed to create SurfaceControl";
status_t error = Transaction()
.setLayerStack(layer, mDisplayLayerStack)
.setLayer(layer, mLayerZBase)
.apply();
if (error != NO_ERROR) {
ADD_FAILURE() << "failed to initialize SurfaceControl";
layer.clear();
}
return layer;
}
ANativeWindow_Buffer getBufferQueueLayerBuffer(const sp<SurfaceControl>& layer) {
// wait for previous transactions (such as setSize) to complete
Transaction().apply(true);
ANativeWindow_Buffer buffer = {};
EXPECT_EQ(NO_ERROR, layer->getSurface()->lock(&buffer, nullptr));
return buffer;
}
ANativeWindow_Buffer getLayerBuffer(const sp<SurfaceControl>& layer) {
// wait for previous transactions (such as setSize) to complete
Transaction().apply(true);
ANativeWindow_Buffer buffer = {};
EXPECT_EQ(NO_ERROR, layer->getSurface()->lock(&buffer, nullptr));
return buffer;
}
void postLayerBuffer(const sp<SurfaceControl>& layer) {
ASSERT_EQ(NO_ERROR, layer->getSurface()->unlockAndPost());
// wait for the newly posted buffer to be latched
waitForLayerBuffers();
}
void postBufferQueueLayerBuffer(const sp<SurfaceControl>& layer) {
ASSERT_EQ(NO_ERROR, layer->getSurface()->unlockAndPost());
// wait for the newly posted buffer to be latched
waitForLayerBuffers();
}
virtual void fillBufferQueueLayerColor(const sp<SurfaceControl>& layer, const Color& color,
int32_t bufferWidth, int32_t bufferHeight) {
ANativeWindow_Buffer buffer;
ASSERT_NO_FATAL_FAILURE(buffer = getBufferQueueLayerBuffer(layer));
fillANativeWindowBufferColor(buffer, Rect(0, 0, bufferWidth, bufferHeight), color);
postBufferQueueLayerBuffer(layer);
}
void fillLayerColor(const sp<SurfaceControl>& layer, const Color& color) {
ANativeWindow_Buffer buffer;
ASSERT_NO_FATAL_FAILURE(buffer = getLayerBuffer(layer));
fillBufferColor(buffer, Rect(0, 0, buffer.width, buffer.height), color);
postLayerBuffer(layer);
}
void fillLayerQuadrant(const sp<SurfaceControl>& layer, const Color& topLeft,
const Color& topRight, const Color& bottomLeft,
const Color& bottomRight) {
ANativeWindow_Buffer buffer;
ASSERT_NO_FATAL_FAILURE(buffer = getLayerBuffer(layer));
ASSERT_TRUE(buffer.width % 2 == 0 && buffer.height % 2 == 0);
const int32_t halfW = buffer.width / 2;
const int32_t halfH = buffer.height / 2;
fillBufferColor(buffer, Rect(0, 0, halfW, halfH), topLeft);
fillBufferColor(buffer, Rect(halfW, 0, buffer.width, halfH), topRight);
fillBufferColor(buffer, Rect(0, halfH, halfW, buffer.height), bottomLeft);
fillBufferColor(buffer, Rect(halfW, halfH, buffer.width, buffer.height), bottomRight);
postLayerBuffer(layer);
}
sp<ScreenCapture> screenshot() {
sp<ScreenCapture> screenshot;
ScreenCapture::captureScreen(&screenshot, mLayerZBase);
return screenshot;
}
sp<SurfaceComposerClient> mClient;
sp<IBinder> mDisplay;
uint32_t mDisplayWidth;
uint32_t mDisplayHeight;
uint32_t mDisplayLayerStack;
// leave room for ~256 layers
const int32_t mLayerZBase = std::numeric_limits<int32_t>::max() - 256;
private:
void SetUpDisplay() {
mDisplay = mClient->getBuiltInDisplay(ISurfaceComposer::eDisplayIdMain);
ASSERT_NE(nullptr, mDisplay.get()) << "failed to get built-in display";
// get display width/height
DisplayInfo info;
SurfaceComposerClient::getDisplayInfo(mDisplay, &info);
mDisplayWidth = info.w;
mDisplayHeight = info.h;
// After a new buffer is queued, SurfaceFlinger is notified and will
// latch the new buffer on next vsync. Let's heuristically wait for 3
// vsyncs.
mBufferPostDelay = int32_t(1e6 / info.fps) * 3;
mDisplayLayerStack = 0;
// set layer stack (b/68888219)
Transaction t;
t.setDisplayLayerStack(mDisplay, mDisplayLayerStack);
t.apply();
}
void waitForLayerBuffers() { usleep(mBufferPostDelay); }
int32_t mBufferPostDelay;
};
TEST_F(LayerTransactionTest, SetPositionBasic) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("default position");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 32, 32), Color::RED);
shot->expectBorder(Rect(0, 0, 32, 32), Color::BLACK);
}
Transaction().setPosition(layer, 5, 10).apply();
{
SCOPED_TRACE("new position");
auto shot = screenshot();
shot->expectColor(Rect(5, 10, 37, 42), Color::RED);
shot->expectBorder(Rect(5, 10, 37, 42), Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetPositionRounding) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// GLES requires only 4 bits of subpixel precision during rasterization
// XXX GLES composition does not match HWC composition due to precision
// loss (b/69315223)
const float epsilon = 1.0f / 16.0f;
Transaction().setPosition(layer, 0.5f - epsilon, 0.5f - epsilon).apply();
{
SCOPED_TRACE("rounding down");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
Transaction().setPosition(layer, 0.5f + epsilon, 0.5f + epsilon).apply();
{
SCOPED_TRACE("rounding up");
screenshot()->expectColor(Rect(1, 1, 33, 33), Color::RED);
}
}
TEST_F(LayerTransactionTest, SetPositionOutOfBounds) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
Transaction().setPosition(layer, -32, -32).apply();
{
SCOPED_TRACE("negative coordinates");
screenshot()->expectColor(Rect(0, 0, mDisplayWidth, mDisplayHeight), Color::BLACK);
}
Transaction().setPosition(layer, mDisplayWidth, mDisplayHeight).apply();
{
SCOPED_TRACE("positive coordinates");
screenshot()->expectColor(Rect(0, 0, mDisplayWidth, mDisplayHeight), Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetPositionPartiallyOutOfBounds) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// partially out of bounds
Transaction().setPosition(layer, -30, -30).apply();
{
SCOPED_TRACE("negative coordinates");
screenshot()->expectColor(Rect(0, 0, 2, 2), Color::RED);
}
Transaction().setPosition(layer, mDisplayWidth - 2, mDisplayHeight - 2).apply();
{
SCOPED_TRACE("positive coordinates");
screenshot()->expectColor(Rect(mDisplayWidth - 2, mDisplayHeight - 2, mDisplayWidth,
mDisplayHeight),
Color::RED);
}
}
TEST_F(LayerTransactionTest, SetPositionWithResize) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// setPosition is applied immediately by default, with or without resize
// pending
Transaction().setPosition(layer, 5, 10).setSize(layer, 64, 64).apply();
{
SCOPED_TRACE("resize pending");
auto shot = screenshot();
shot->expectColor(Rect(5, 10, 37, 42), Color::RED);
shot->expectBorder(Rect(5, 10, 37, 42), Color::BLACK);
}
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("resize applied");
screenshot()->expectColor(Rect(5, 10, 69, 74), Color::RED);
}
}
TEST_F(LayerTransactionTest, SetPositionWithNextResize) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// request setPosition to be applied with the next resize
Transaction().setPosition(layer, 5, 10).setGeometryAppliesWithResize(layer).apply();
{
SCOPED_TRACE("new position pending");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
Transaction().setPosition(layer, 15, 20).apply();
{
SCOPED_TRACE("pending new position modified");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
Transaction().setSize(layer, 64, 64).apply();
{
SCOPED_TRACE("resize pending");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
// finally resize and latch the buffer
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("new position applied");
screenshot()->expectColor(Rect(15, 20, 79, 84), Color::RED);
}
}
TEST_F(LayerTransactionTest, SetPositionWithNextResizeScaleToWindow) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// setPosition is not immediate even with SCALE_TO_WINDOW override
Transaction()
.setPosition(layer, 5, 10)
.setSize(layer, 64, 64)
.setOverrideScalingMode(layer, NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW)
.setGeometryAppliesWithResize(layer)
.apply();
{
SCOPED_TRACE("new position pending");
screenshot()->expectColor(Rect(0, 0, 64, 64), Color::RED);
}
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("new position applied");
screenshot()->expectColor(Rect(5, 10, 69, 74), Color::RED);
}
}
TEST_F(LayerTransactionTest, SetSizeBasic) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
Transaction().setSize(layer, 64, 64).apply();
{
SCOPED_TRACE("resize pending");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 32, 32), Color::RED);
shot->expectBorder(Rect(0, 0, 32, 32), Color::BLACK);
}
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("resize applied");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 64, 64), Color::RED);
shot->expectBorder(Rect(0, 0, 64, 64), Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetSizeInvalid) {
// cannot test robustness against invalid sizes (zero or really huge)
}
TEST_F(LayerTransactionTest, SetSizeWithScaleToWindow) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// setSize is immediate with SCALE_TO_WINDOW, unlike setPosition
Transaction()
.setSize(layer, 64, 64)
.setOverrideScalingMode(layer, NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW)
.apply();
screenshot()->expectColor(Rect(0, 0, 64, 64), Color::RED);
}
TEST_F(LayerTransactionTest, SetZBasic) {
sp<SurfaceControl> layerR;
sp<SurfaceControl> layerG;
ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, Color::RED));
ASSERT_NO_FATAL_FAILURE(layerG = createLayer("test G", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerG, Color::GREEN));
Transaction().setLayer(layerR, mLayerZBase + 1).apply();
{
SCOPED_TRACE("layerR");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
Transaction().setLayer(layerG, mLayerZBase + 2).apply();
{
SCOPED_TRACE("layerG");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::GREEN);
}
}
TEST_F(LayerTransactionTest, SetZNegative) {
sp<SurfaceControl> layerR;
sp<SurfaceControl> layerG;
ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, Color::RED));
ASSERT_NO_FATAL_FAILURE(layerG = createLayer("test G", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerG, Color::GREEN));
Transaction().setLayer(layerR, -1).setLayer(layerG, -2).apply();
{
SCOPED_TRACE("layerR");
sp<ScreenCapture> screenshot;
ScreenCapture::captureScreen(&screenshot, -2, -1);
screenshot->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
Transaction().setLayer(layerR, -3).apply();
{
SCOPED_TRACE("layerG");
sp<ScreenCapture> screenshot;
ScreenCapture::captureScreen(&screenshot, -3, -1);
screenshot->expectColor(Rect(0, 0, 32, 32), Color::GREEN);
}
}
TEST_F(LayerTransactionTest, SetRelativeZBasic) {
sp<SurfaceControl> layerR;
sp<SurfaceControl> layerG;
ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, Color::RED));
ASSERT_NO_FATAL_FAILURE(layerG = createLayer("test G", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerG, Color::GREEN));
Transaction()
.setPosition(layerG, 16, 16)
.setRelativeLayer(layerG, layerR->getHandle(), 1)
.apply();
{
SCOPED_TRACE("layerG above");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 16, 16), Color::RED);
shot->expectColor(Rect(16, 16, 48, 48), Color::GREEN);
}
Transaction().setRelativeLayer(layerG, layerR->getHandle(), -1).apply();
{
SCOPED_TRACE("layerG below");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 32, 32), Color::RED);
shot->expectColor(Rect(32, 32, 48, 48), Color::GREEN);
}
}
TEST_F(LayerTransactionTest, SetRelativeZNegative) {
sp<SurfaceControl> layerR;
sp<SurfaceControl> layerG;
sp<SurfaceControl> layerB;
ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, Color::RED));
ASSERT_NO_FATAL_FAILURE(layerG = createLayer("test G", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerG, Color::GREEN));
ASSERT_NO_FATAL_FAILURE(layerB = createLayer("test B", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerB, Color::BLUE));
// layerR = mLayerZBase, layerG = layerR - 1, layerB = -2
Transaction().setRelativeLayer(layerG, layerR->getHandle(), -1).setLayer(layerB, -2).apply();
sp<ScreenCapture> screenshot;
// only layerB is in this range
ScreenCapture::captureScreen(&screenshot, -2, -1);
screenshot->expectColor(Rect(0, 0, 32, 32), Color::BLUE);
}
TEST_F(LayerTransactionTest, SetRelativeZGroup) {
sp<SurfaceControl> layerR;
sp<SurfaceControl> layerG;
sp<SurfaceControl> layerB;
ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, Color::RED));
ASSERT_NO_FATAL_FAILURE(layerG = createLayer("test G", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerG, Color::GREEN));
ASSERT_NO_FATAL_FAILURE(layerB = createLayer("test B", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerB, Color::BLUE));
// layerR = 0, layerG = layerR + 3, layerB = 2
Transaction()
.setPosition(layerG, 8, 8)
.setRelativeLayer(layerG, layerR->getHandle(), 3)
.setPosition(layerB, 16, 16)
.setLayer(layerB, mLayerZBase + 2)
.apply();
{
SCOPED_TRACE("(layerR < layerG) < layerB");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 8, 8), Color::RED);
shot->expectColor(Rect(8, 8, 16, 16), Color::GREEN);
shot->expectColor(Rect(16, 16, 48, 48), Color::BLUE);
}
// layerR = 4, layerG = layerR + 3, layerB = 2
Transaction().setLayer(layerR, mLayerZBase + 4).apply();
{
SCOPED_TRACE("layerB < (layerR < layerG)");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 8, 8), Color::RED);
shot->expectColor(Rect(8, 8, 40, 40), Color::GREEN);
shot->expectColor(Rect(40, 40, 48, 48), Color::BLUE);
}
// layerR = 4, layerG = layerR - 3, layerB = 2
Transaction().setRelativeLayer(layerG, layerR->getHandle(), -3).apply();
{
SCOPED_TRACE("layerB < (layerG < layerR)");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 32, 32), Color::RED);
shot->expectColor(Rect(32, 32, 40, 40), Color::GREEN);
shot->expectColor(Rect(40, 40, 48, 48), Color::BLUE);
}
// restore to absolute z
// layerR = 4, layerG = 0, layerB = 2
Transaction().setLayer(layerG, mLayerZBase).apply();
{
SCOPED_TRACE("layerG < layerB < layerR");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 32, 32), Color::RED);
shot->expectColor(Rect(32, 32, 48, 48), Color::BLUE);
}
// layerR should not affect layerG anymore
// layerR = 1, layerG = 0, layerB = 2
Transaction().setLayer(layerR, mLayerZBase + 1).apply();
{
SCOPED_TRACE("layerG < layerR < layerB");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 16, 16), Color::RED);
shot->expectColor(Rect(16, 16, 48, 48), Color::BLUE);
}
}
TEST_F(LayerTransactionTest, SetRelativeZBug64572777) {
sp<SurfaceControl> layerR;
sp<SurfaceControl> layerG;
ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, Color::RED));
ASSERT_NO_FATAL_FAILURE(layerG = createLayer("test G", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerG, Color::GREEN));
Transaction()
.setPosition(layerG, 16, 16)
.setRelativeLayer(layerG, layerR->getHandle(), 1)
.apply();
mClient->destroySurface(layerG->getHandle());
// layerG should have been removed
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
TEST_F(LayerTransactionTest, SetFlagsHidden) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
Transaction().setFlags(layer, layer_state_t::eLayerHidden, layer_state_t::eLayerHidden).apply();
{
SCOPED_TRACE("layer hidden");
screenshot()->expectColor(Rect(0, 0, mDisplayWidth, mDisplayHeight), Color::BLACK);
}
Transaction().setFlags(layer, 0, layer_state_t::eLayerHidden).apply();
{
SCOPED_TRACE("layer shown");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
}
TEST_F(LayerTransactionTest, SetFlagsOpaque) {
const Color translucentRed = {100, 0, 0, 100};
sp<SurfaceControl> layerR;
sp<SurfaceControl> layerG;
ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, translucentRed));
ASSERT_NO_FATAL_FAILURE(layerG = createLayer("test G", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerG, Color::GREEN));
Transaction()
.setLayer(layerR, mLayerZBase + 1)
.setFlags(layerR, layer_state_t::eLayerOpaque, layer_state_t::eLayerOpaque)
.apply();
{
SCOPED_TRACE("layerR opaque");
screenshot()->expectColor(Rect(0, 0, 32, 32), {100, 0, 0, 255});
}
Transaction().setFlags(layerR, 0, layer_state_t::eLayerOpaque).apply();
{
SCOPED_TRACE("layerR translucent");
const uint8_t g = uint8_t(255 - translucentRed.a);
screenshot()->expectColor(Rect(0, 0, 32, 32), {100, g, 0, 255});
}
}
TEST_F(LayerTransactionTest, SetFlagsSecure) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
sp<ISurfaceComposer> composer = ComposerService::getComposerService();
sp<GraphicBuffer> outBuffer;
Transaction()
.setFlags(layer, layer_state_t::eLayerSecure, layer_state_t::eLayerSecure)
.apply(true);
ASSERT_EQ(PERMISSION_DENIED,
composer->captureScreen(mDisplay, &outBuffer, Rect(), 0, 0, mLayerZBase, mLayerZBase,
false));
Transaction().setFlags(layer, 0, layer_state_t::eLayerSecure).apply(true);
ASSERT_EQ(NO_ERROR,
composer->captureScreen(mDisplay, &outBuffer, Rect(), 0, 0, mLayerZBase, mLayerZBase,
false));
}
/** RAII Wrapper around get/seteuid */
class UIDFaker {
uid_t oldId;
public:
UIDFaker(uid_t uid) {
oldId = geteuid();
seteuid(uid);
}
~UIDFaker() {
seteuid(oldId);
}
};
TEST_F(LayerTransactionTest, SetFlagsSecureEUidSystem) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillBufferQueueLayerColor(layer, Color::RED, 32, 32));
sp<ISurfaceComposer> composer = ComposerService::getComposerService();
sp<GraphicBuffer> outBuffer;
Transaction()
.setFlags(layer, layer_state_t::eLayerSecure, layer_state_t::eLayerSecure)
.apply(true);
ASSERT_EQ(PERMISSION_DENIED,
composer->captureScreen(mDisplay, &outBuffer, Rect(), 0, 0, 0, INT_MAX, false));
UIDFaker f(AID_SYSTEM);
// By default the system can capture screenshots with secure layers but they
// will be blacked out
ASSERT_EQ(NO_ERROR,
composer->captureScreen(mDisplay, &outBuffer, Rect(), 0, 0, 0, INT_MAX, false));
{
SCOPED_TRACE("as system");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 32, 32), Color::BLACK);
}
// Here we pass captureSecureLayers = true and since we are AID_SYSTEM we should be able
// to receive them...we are expected to take care with the results.
bool outCapturedSecureLayers = false;
ASSERT_EQ(NO_ERROR,
composer->captureScreen(mDisplay, &outBuffer, outCapturedSecureLayers,
Rect(), 0, 0, 0, INT_MAX, false, ISurfaceComposer::eRotateNone, true));
ASSERT_EQ(true, outCapturedSecureLayers);
ScreenCapture sc(outBuffer);
sc.expectColor(Rect(0, 0, 32, 32), Color::RED);
}
TEST_F(LayerTransactionTest, SetTransparentRegionHintBasic) {
const Rect top(0, 0, 32, 16);
const Rect bottom(0, 16, 32, 32);
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ANativeWindow_Buffer buffer;
ASSERT_NO_FATAL_FAILURE(buffer = getLayerBuffer(layer));
ASSERT_NO_FATAL_FAILURE(fillBufferColor(buffer, top, Color::TRANSPARENT));
ASSERT_NO_FATAL_FAILURE(fillBufferColor(buffer, bottom, Color::RED));
// setTransparentRegionHint always applies to the following buffer
Transaction().setTransparentRegionHint(layer, Region(top)).apply();
ASSERT_NO_FATAL_FAILURE(postLayerBuffer(layer));
{
SCOPED_TRACE("top transparent");
auto shot = screenshot();
shot->expectColor(top, Color::BLACK);
shot->expectColor(bottom, Color::RED);
}
Transaction().setTransparentRegionHint(layer, Region(bottom)).apply();
{
SCOPED_TRACE("transparent region hint pending");
auto shot = screenshot();
shot->expectColor(top, Color::BLACK);
shot->expectColor(bottom, Color::RED);
}
ASSERT_NO_FATAL_FAILURE(buffer = getLayerBuffer(layer));
ASSERT_NO_FATAL_FAILURE(fillBufferColor(buffer, top, Color::RED));
ASSERT_NO_FATAL_FAILURE(fillBufferColor(buffer, bottom, Color::TRANSPARENT));
ASSERT_NO_FATAL_FAILURE(postLayerBuffer(layer));
{
SCOPED_TRACE("bottom transparent");
auto shot = screenshot();
shot->expectColor(top, Color::RED);
shot->expectColor(bottom, Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetTransparentRegionHintOutOfBounds) {
sp<SurfaceControl> layerTransparent;
sp<SurfaceControl> layerR;
ASSERT_NO_FATAL_FAILURE(layerTransparent = createLayer("test transparent", 32, 32));
ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
// check that transparent region hint is bound by the layer size
Transaction()
.setTransparentRegionHint(layerTransparent,
Region(Rect(0, 0, mDisplayWidth, mDisplayHeight)))
.setPosition(layerR, 16, 16)
.setLayer(layerR, mLayerZBase + 1)
.apply();
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerTransparent, Color::TRANSPARENT));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, Color::RED));
screenshot()->expectColor(Rect(16, 16, 48, 48), Color::RED);
}
TEST_F(LayerTransactionTest, SetAlphaBasic) {
sp<SurfaceControl> layer1;
sp<SurfaceControl> layer2;
ASSERT_NO_FATAL_FAILURE(layer1 = createLayer("test 1", 32, 32));
ASSERT_NO_FATAL_FAILURE(layer2 = createLayer("test 2", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer1, {64, 0, 0, 255}));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer2, {0, 64, 0, 255}));
Transaction()
.setAlpha(layer1, 0.25f)
.setAlpha(layer2, 0.75f)
.setPosition(layer2, 16, 0)
.setLayer(layer2, mLayerZBase + 1)
.apply();
{
auto shot = screenshot();
uint8_t r = 16; // 64 * 0.25f
uint8_t g = 48; // 64 * 0.75f
shot->expectColor(Rect(0, 0, 16, 32), {r, 0, 0, 255});
shot->expectColor(Rect(32, 0, 48, 32), {0, g, 0, 255});
r /= 4; // r * (1.0f - 0.75f)
shot->expectColor(Rect(16, 0, 32, 32), {r, g, 0, 255});
}
}
TEST_F(LayerTransactionTest, SetAlphaClamped) {
const Color color = {64, 0, 0, 255};
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, color));
Transaction().setAlpha(layer, 2.0f).apply();
{
SCOPED_TRACE("clamped to 1.0f");
screenshot()->expectColor(Rect(0, 0, 32, 32), color);
}
Transaction().setAlpha(layer, -1.0f).apply();
{
SCOPED_TRACE("clamped to 0.0f");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetColorBasic) {
sp<SurfaceControl> bufferLayer;
sp<SurfaceControl> colorLayer;
ASSERT_NO_FATAL_FAILURE(bufferLayer = createLayer("test bg", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(bufferLayer, Color::RED));
ASSERT_NO_FATAL_FAILURE(
colorLayer = createLayer("test", 32, 32, ISurfaceComposerClient::eFXSurfaceColor));
Transaction().setLayer(colorLayer, mLayerZBase + 1).apply();
{
SCOPED_TRACE("default color");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::BLACK);
}
const half3 color(15.0f / 255.0f, 51.0f / 255.0f, 85.0f / 255.0f);
const Color expected = {15, 51, 85, 255};
// this is handwavy, but the precison loss scaled by 255 (8-bit per
// channel) should be less than one
const uint8_t tolerance = 1;
Transaction().setColor(colorLayer, color).apply();
{
SCOPED_TRACE("new color");
screenshot()->expectColor(Rect(0, 0, 32, 32), expected, tolerance);
}
}
TEST_F(LayerTransactionTest, SetColorClamped) {
sp<SurfaceControl> colorLayer;
ASSERT_NO_FATAL_FAILURE(
colorLayer = createLayer("test", 32, 32, ISurfaceComposerClient::eFXSurfaceColor));
Transaction().setColor(colorLayer, half3(2.0f, -1.0f, 0.0f)).apply();
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
TEST_F(LayerTransactionTest, SetColorWithAlpha) {
sp<SurfaceControl> bufferLayer;
sp<SurfaceControl> colorLayer;
ASSERT_NO_FATAL_FAILURE(bufferLayer = createLayer("test bg", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(bufferLayer, Color::RED));
ASSERT_NO_FATAL_FAILURE(
colorLayer = createLayer("test", 32, 32, ISurfaceComposerClient::eFXSurfaceColor));
const half3 color(15.0f / 255.0f, 51.0f / 255.0f, 85.0f / 255.0f);
const float alpha = 0.25f;
const ubyte3 expected((vec3(color) * alpha + vec3(1.0f, 0.0f, 0.0f) * (1.0f - alpha)) * 255.0f);
// this is handwavy, but the precison loss scaled by 255 (8-bit per
// channel) should be less than one
const uint8_t tolerance = 1;
Transaction()
.setColor(colorLayer, color)
.setAlpha(colorLayer, alpha)
.setLayer(colorLayer, mLayerZBase + 1)
.apply();
screenshot()->expectColor(Rect(0, 0, 32, 32), {expected.r, expected.g, expected.b, 255},
tolerance);
}
TEST_F(LayerTransactionTest, SetColorWithParentAlpha_Bug74220420) {
sp<SurfaceControl> bufferLayer;
sp<SurfaceControl> parentLayer;
sp<SurfaceControl> colorLayer;
ASSERT_NO_FATAL_FAILURE(bufferLayer = createLayer("test bg", 32, 32));
ASSERT_NO_FATAL_FAILURE(parentLayer = createLayer("parentWithAlpha", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(bufferLayer, Color::RED));
ASSERT_NO_FATAL_FAILURE(colorLayer = createLayer(
"childWithColor", 32, 32, ISurfaceComposerClient::eFXSurfaceColor));
const half3 color(15.0f / 255.0f, 51.0f / 255.0f, 85.0f / 255.0f);
const float alpha = 0.25f;
const ubyte3 expected((vec3(color) * alpha + vec3(1.0f, 0.0f, 0.0f) * (1.0f - alpha)) * 255.0f);
// this is handwavy, but the precision loss scaled by 255 (8-bit per
// channel) should be less than one
const uint8_t tolerance = 1;
Transaction()
.reparent(colorLayer, parentLayer->getHandle())
.setColor(colorLayer, color)
.setAlpha(parentLayer, alpha)
.setLayer(parentLayer, mLayerZBase + 1)
.apply();
screenshot()->expectColor(Rect(0, 0, 32, 32), {expected.r, expected.g, expected.b, 255},
tolerance);
}
TEST_F(LayerTransactionTest, SetColorWithBuffer) {
sp<SurfaceControl> bufferLayer;
ASSERT_NO_FATAL_FAILURE(bufferLayer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(bufferLayer, Color::RED));
// color is ignored
Transaction().setColor(bufferLayer, half3(0.0f, 1.0f, 0.0f)).apply();
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
TEST_F(LayerTransactionTest, SetLayerStackBasic) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
Transaction().setLayerStack(layer, mDisplayLayerStack + 1).apply();
{
SCOPED_TRACE("non-existing layer stack");
screenshot()->expectColor(Rect(0, 0, mDisplayWidth, mDisplayHeight), Color::BLACK);
}
Transaction().setLayerStack(layer, mDisplayLayerStack).apply();
{
SCOPED_TRACE("original layer stack");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
}
TEST_F(LayerTransactionTest, SetMatrixBasic) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(
fillLayerQuadrant(layer, Color::RED, Color::GREEN, Color::BLUE, Color::WHITE));
Transaction().setMatrix(layer, 1.0f, 0.0f, 0.0f, 1.0f).setPosition(layer, 0, 0).apply();
{
SCOPED_TRACE("IDENTITY");
screenshot()->expectQuadrant(Rect(0, 0, 32, 32), Color::RED, Color::GREEN, Color::BLUE,
Color::WHITE);
}
Transaction().setMatrix(layer, -1.0f, 0.0f, 0.0f, 1.0f).setPosition(layer, 32, 0).apply();
{
SCOPED_TRACE("FLIP_H");
screenshot()->expectQuadrant(Rect(0, 0, 32, 32), Color::GREEN, Color::RED, Color::WHITE,
Color::BLUE);
}
Transaction().setMatrix(layer, 1.0f, 0.0f, 0.0f, -1.0f).setPosition(layer, 0, 32).apply();
{
SCOPED_TRACE("FLIP_V");
screenshot()->expectQuadrant(Rect(0, 0, 32, 32), Color::BLUE, Color::WHITE, Color::RED,
Color::GREEN);
}
Transaction().setMatrix(layer, 0.0f, 1.0f, -1.0f, 0.0f).setPosition(layer, 32, 0).apply();
{
SCOPED_TRACE("ROT_90");
screenshot()->expectQuadrant(Rect(0, 0, 32, 32), Color::BLUE, Color::RED, Color::WHITE,
Color::GREEN);
}
Transaction().setMatrix(layer, 2.0f, 0.0f, 0.0f, 2.0f).setPosition(layer, 0, 0).apply();
{
SCOPED_TRACE("SCALE");
screenshot()->expectQuadrant(Rect(0, 0, 64, 64), Color::RED, Color::GREEN, Color::BLUE,
Color::WHITE, true /* filtered */);
}
}
TEST_F(LayerTransactionTest, SetMatrixRot45) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(
fillLayerQuadrant(layer, Color::RED, Color::GREEN, Color::BLUE, Color::WHITE));
const float rot = M_SQRT1_2; // 45 degrees
const float trans = M_SQRT2 * 16.0f;
Transaction().setMatrix(layer, rot, rot, -rot, rot).setPosition(layer, trans, 0).apply();
auto shot = screenshot();
// check a 8x8 region inside each color
auto get8x8Rect = [](int32_t centerX, int32_t centerY) {
const int32_t halfL = 4;
return Rect(centerX - halfL, centerY - halfL, centerX + halfL, centerY + halfL);
};
const int32_t unit = int32_t(trans / 2);
shot->expectColor(get8x8Rect(2 * unit, 1 * unit), Color::RED);
shot->expectColor(get8x8Rect(3 * unit, 2 * unit), Color::GREEN);
shot->expectColor(get8x8Rect(1 * unit, 2 * unit), Color::BLUE);
shot->expectColor(get8x8Rect(2 * unit, 3 * unit), Color::WHITE);
}
TEST_F(LayerTransactionTest, SetMatrixWithResize) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// setMatrix is applied after any pending resize, unlike setPosition
Transaction().setMatrix(layer, 2.0f, 0.0f, 0.0f, 2.0f).setSize(layer, 64, 64).apply();
{
SCOPED_TRACE("resize pending");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 32, 32), Color::RED);
shot->expectBorder(Rect(0, 0, 32, 32), Color::BLACK);
}
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("resize applied");
screenshot()->expectColor(Rect(0, 0, 128, 128), Color::RED);
}
}
TEST_F(LayerTransactionTest, SetMatrixWithScaleToWindow) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// setMatrix is immediate with SCALE_TO_WINDOW, unlike setPosition
Transaction()
.setMatrix(layer, 2.0f, 0.0f, 0.0f, 2.0f)
.setSize(layer, 64, 64)
.setOverrideScalingMode(layer, NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW)
.apply();
screenshot()->expectColor(Rect(0, 0, 128, 128), Color::RED);
}
TEST_F(LayerTransactionTest, SetOverrideScalingModeBasic) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(
fillLayerQuadrant(layer, Color::RED, Color::GREEN, Color::BLUE, Color::WHITE));
// XXX SCALE_CROP is not respected; calling setSize and
// setOverrideScalingMode in separate transactions does not work
// (b/69315456)
Transaction()
.setSize(layer, 64, 16)
.setOverrideScalingMode(layer, NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW)
.apply();
{
SCOPED_TRACE("SCALE_TO_WINDOW");
screenshot()->expectQuadrant(Rect(0, 0, 64, 16), Color::RED, Color::GREEN, Color::BLUE,
Color::WHITE, true /* filtered */);
}
}
TEST_F(LayerTransactionTest, SetCropBasic) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
const Rect crop(8, 8, 24, 24);
Transaction().setCrop(layer, crop).apply();
auto shot = screenshot();
shot->expectColor(crop, Color::RED);
shot->expectBorder(crop, Color::BLACK);
}
TEST_F(LayerTransactionTest, SetCropEmpty) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("empty rect");
Transaction().setCrop(layer, Rect(8, 8, 8, 8)).apply();
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
{
SCOPED_TRACE("negative rect");
Transaction().setCrop(layer, Rect(8, 8, 0, 0)).apply();
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
}
TEST_F(LayerTransactionTest, SetCropOutOfBounds) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
Transaction().setCrop(layer, Rect(-128, -64, 128, 64)).apply();
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 32, 32), Color::RED);
shot->expectBorder(Rect(0, 0, 32, 32), Color::BLACK);
}
TEST_F(LayerTransactionTest, SetCropWithTranslation) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
const Point position(32, 32);
const Rect crop(8, 8, 24, 24);
Transaction().setPosition(layer, position.x, position.y).setCrop(layer, crop).apply();
auto shot = screenshot();
shot->expectColor(crop + position, Color::RED);
shot->expectBorder(crop + position, Color::BLACK);
}
TEST_F(LayerTransactionTest, SetCropWithScale) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// crop is affected by matrix
Transaction()
.setMatrix(layer, 2.0f, 0.0f, 0.0f, 2.0f)
.setCrop(layer, Rect(8, 8, 24, 24))
.apply();
auto shot = screenshot();
shot->expectColor(Rect(16, 16, 48, 48), Color::RED);
shot->expectBorder(Rect(16, 16, 48, 48), Color::BLACK);
}
TEST_F(LayerTransactionTest, SetCropWithResize) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// setCrop is applied immediately by default, with or without resize pending
Transaction().setCrop(layer, Rect(8, 8, 24, 24)).setSize(layer, 16, 16).apply();
{
SCOPED_TRACE("resize pending");
auto shot = screenshot();
shot->expectColor(Rect(8, 8, 24, 24), Color::RED);
shot->expectBorder(Rect(8, 8, 24, 24), Color::BLACK);
}
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("resize applied");
auto shot = screenshot();
shot->expectColor(Rect(8, 8, 16, 16), Color::RED);
shot->expectBorder(Rect(8, 8, 16, 16), Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetCropWithNextResize) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// request setCrop to be applied with the next resize
Transaction().setCrop(layer, Rect(8, 8, 24, 24)).setGeometryAppliesWithResize(layer).apply();
{
SCOPED_TRACE("waiting for next resize");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
Transaction().setCrop(layer, Rect(4, 4, 12, 12)).apply();
{
SCOPED_TRACE("pending crop modified");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
Transaction().setSize(layer, 16, 16).apply();
{
SCOPED_TRACE("resize pending");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
// finally resize
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("new crop applied");
auto shot = screenshot();
shot->expectColor(Rect(4, 4, 12, 12), Color::RED);
shot->expectBorder(Rect(4, 4, 12, 12), Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetCropWithNextResizeScaleToWindow) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// setCrop is not immediate even with SCALE_TO_WINDOW override
Transaction()
.setCrop(layer, Rect(4, 4, 12, 12))
.setSize(layer, 16, 16)
.setOverrideScalingMode(layer, NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW)
.setGeometryAppliesWithResize(layer)
.apply();
{
SCOPED_TRACE("new crop pending");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 16, 16), Color::RED);
shot->expectBorder(Rect(0, 0, 16, 16), Color::BLACK);
}
// XXX crop is never latched without other geometry change (b/69315677)
Transaction().setPosition(layer, 1, 0).setGeometryAppliesWithResize(layer).apply();
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
Transaction().setPosition(layer, 0, 0).apply();
{
SCOPED_TRACE("new crop applied");
auto shot = screenshot();
shot->expectColor(Rect(4, 4, 12, 12), Color::RED);
shot->expectBorder(Rect(4, 4, 12, 12), Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetFinalCropBasic) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
const Rect crop(8, 8, 24, 24);
// same as in SetCropBasic
Transaction().setFinalCrop(layer, crop).apply();
auto shot = screenshot();
shot->expectColor(crop, Color::RED);
shot->expectBorder(crop, Color::BLACK);
}
TEST_F(LayerTransactionTest, SetFinalCropEmpty) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// same as in SetCropEmpty
{
SCOPED_TRACE("empty rect");
Transaction().setFinalCrop(layer, Rect(8, 8, 8, 8)).apply();
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
{
SCOPED_TRACE("negative rect");
Transaction().setFinalCrop(layer, Rect(8, 8, 0, 0)).apply();
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
}
TEST_F(LayerTransactionTest, SetFinalCropOutOfBounds) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// same as in SetCropOutOfBounds
Transaction().setFinalCrop(layer, Rect(-128, -64, 128, 64)).apply();
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 32, 32), Color::RED);
shot->expectBorder(Rect(0, 0, 32, 32), Color::BLACK);
}
TEST_F(LayerTransactionTest, SetFinalCropWithTranslation) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// final crop is applied post-translation
Transaction().setPosition(layer, 16, 16).setFinalCrop(layer, Rect(8, 8, 24, 24)).apply();
auto shot = screenshot();
shot->expectColor(Rect(16, 16, 24, 24), Color::RED);
shot->expectBorder(Rect(16, 16, 24, 24), Color::BLACK);
}
TEST_F(LayerTransactionTest, SetFinalCropWithScale) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// final crop is not affected by matrix
Transaction()
.setMatrix(layer, 2.0f, 0.0f, 0.0f, 2.0f)
.setFinalCrop(layer, Rect(8, 8, 24, 24))
.apply();
auto shot = screenshot();
shot->expectColor(Rect(8, 8, 24, 24), Color::RED);
shot->expectBorder(Rect(8, 8, 24, 24), Color::BLACK);
}
TEST_F(LayerTransactionTest, SetFinalCropWithResize) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// same as in SetCropWithResize
Transaction().setFinalCrop(layer, Rect(8, 8, 24, 24)).setSize(layer, 16, 16).apply();
{
SCOPED_TRACE("resize pending");
auto shot = screenshot();
shot->expectColor(Rect(8, 8, 24, 24), Color::RED);
shot->expectBorder(Rect(8, 8, 24, 24), Color::BLACK);
}
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("resize applied");
auto shot = screenshot();
shot->expectColor(Rect(8, 8, 16, 16), Color::RED);
shot->expectBorder(Rect(8, 8, 16, 16), Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetFinalCropWithNextResize) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// same as in SetCropWithNextResize
Transaction()
.setFinalCrop(layer, Rect(8, 8, 24, 24))
.setGeometryAppliesWithResize(layer)
.apply();
{
SCOPED_TRACE("waiting for next resize");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
Transaction().setFinalCrop(layer, Rect(4, 4, 12, 12)).apply();
{
SCOPED_TRACE("pending final crop modified");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
Transaction().setSize(layer, 16, 16).apply();
{
SCOPED_TRACE("resize pending");
screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
}
// finally resize
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
{
SCOPED_TRACE("new final crop applied");
auto shot = screenshot();
shot->expectColor(Rect(4, 4, 12, 12), Color::RED);
shot->expectBorder(Rect(4, 4, 12, 12), Color::BLACK);
}
}
TEST_F(LayerTransactionTest, SetFinalCropWithNextResizeScaleToWindow) {
sp<SurfaceControl> layer;
ASSERT_NO_FATAL_FAILURE(layer = createLayer("test", 32, 32));
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
// same as in SetCropWithNextResizeScaleToWindow
Transaction()
.setFinalCrop(layer, Rect(4, 4, 12, 12))
.setSize(layer, 16, 16)
.setOverrideScalingMode(layer, NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW)
.setGeometryAppliesWithResize(layer)
.apply();
{
SCOPED_TRACE("new final crop pending");
auto shot = screenshot();
shot->expectColor(Rect(0, 0, 16, 16), Color::RED);
shot->expectBorder(Rect(0, 0, 16, 16), Color::BLACK);
}
// XXX final crop is never latched without other geometry change (b/69315677)
Transaction().setPosition(layer, 1, 0).setGeometryAppliesWithResize(layer).apply();
ASSERT_NO_FATAL_FAILURE(fillLayerColor(layer, Color::RED));
Transaction().setPosition(layer, 0, 0).apply();
{
SCOPED_TRACE("new final crop applied");
auto shot = screenshot();
shot->expectColor(Rect(4, 4, 12, 12), Color::RED);
shot->expectBorder(Rect(4, 4, 12, 12), Color::BLACK);
}
}
class LayerUpdateTest : public LayerTransactionTest {
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 != nullptr);
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 != nullptr);
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 != nullptr);
ASSERT_TRUE(mSyncSurfaceControl->isValid());
fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);
asTransaction([&](Transaction& t) {
t.setDisplayLayerStack(display, 0);
t.setLayer(mBGSurfaceControl, INT32_MAX - 2).show(mBGSurfaceControl);
t.setLayer(mFGSurfaceControl, INT32_MAX - 1)
.setPosition(mFGSurfaceControl, 64, 64)
.show(mFGSurfaceControl);
t.setLayer(mSyncSurfaceControl, INT32_MAX - 1)
.setPosition(mSyncSurfaceControl, displayWidth - 2, displayHeight - 2)
.show(mSyncSurfaceControl);
});
}
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);
}
void asTransaction(const std::function<void(Transaction&)>& exec) {
Transaction t;
exec(t);
t.apply(true);
}
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, RelativesAreNotDetached) {
sp<ScreenCapture> sc;
sp<SurfaceControl> relative = mComposerClient->createSurface(String8("relativeTestSurface"), 10,
10, PIXEL_FORMAT_RGBA_8888, 0);
fillSurfaceRGBA8(relative, 10, 10, 10);
waitForPostedBuffers();
Transaction{}
.setRelativeLayer(relative, mFGSurfaceControl->getHandle(), 1)
.setPosition(relative, 64, 64)
.apply();
{
// The relative should be on top of the FG control.
ScreenCapture::captureScreen(&sc);
sc->checkPixel(64, 64, 10, 10, 10);
}
Transaction{}.detachChildren(mFGSurfaceControl).apply();
{
// Nothing should change at this point.
ScreenCapture::captureScreen(&sc);
sc->checkPixel(64, 64, 10, 10, 10);
}
Transaction{}.hide(relative).apply();
{
// Ensure that the relative was actually hidden, rather than
// being left in the detached but visible state.
ScreenCapture::captureScreen(&sc);
sc->expectFGColor(64, 64);
}
}
class GeometryLatchingTest : public LayerUpdateTest {
protected:
void EXPECT_INITIAL_STATE(const char* trace) {
SCOPED_TRACE(trace);
ScreenCapture::captureScreen(&sc);
// We find the leading edge of the FG surface.
sc->expectFGColor(127, 127);
sc->expectBGColor(128, 128);
}
void lockAndFillFGBuffer() { fillSurfaceRGBA8(mFGSurfaceControl, 195, 63, 63, false); }
void unlockFGBuffer() {
sp<Surface> s = mFGSurfaceControl->getSurface();
ASSERT_EQ(NO_ERROR, s->unlockAndPost());
waitForPostedBuffers();
}
void completeFGResize() {
fillSurfaceRGBA8(mFGSurfaceControl, 195, 63, 63);
waitForPostedBuffers();
}
void restoreInitialState() {
asTransaction([&](Transaction& t) {
t.setSize(mFGSurfaceControl, 64, 64);
t.setPosition(mFGSurfaceControl, 64, 64);
t.setCrop(mFGSurfaceControl, Rect(0, 0, 64, 64));
t.setFinalCrop(mFGSurfaceControl, Rect(0, 0, -1, -1));
});
EXPECT_INITIAL_STATE("After restoring initial state");
}
sp<ScreenCapture> sc;
};
class CropLatchingTest : public GeometryLatchingTest {
protected:
void EXPECT_CROPPED_STATE(const char* trace) {
SCOPED_TRACE(trace);
ScreenCapture::captureScreen(&sc);
// The edge should be moved back one pixel by our crop.
sc->expectFGColor(126, 126);
sc->expectBGColor(127, 127);
sc->expectBGColor(128, 128);
}
void EXPECT_RESIZE_STATE(const char* trace) {
SCOPED_TRACE(trace);
ScreenCapture::captureScreen(&sc);
// The FG is now resized too 128,128 at 64,64
sc->expectFGColor(64, 64);
sc->expectFGColor(191, 191);
sc->expectBGColor(192, 192);
}
};
// In this test we ensure that setGeometryAppliesWithResize actually demands
// a buffer of the new size, and not just any size.
TEST_F(CropLatchingTest, FinalCropLatchingBufferOldSize) {
EXPECT_INITIAL_STATE("before anything");
// Normally the crop applies immediately even while a resize is pending.
asTransaction([&](Transaction& t) {
t.setSize(mFGSurfaceControl, 128, 128);
t.setFinalCrop(mFGSurfaceControl, Rect(64, 64, 127, 127));
});
EXPECT_CROPPED_STATE("after setting crop (without geometryAppliesWithResize)");
restoreInitialState();
// In order to prepare to submit a buffer at the wrong size, we acquire it prior to
// initiating the resize.
lockAndFillFGBuffer();
asTransaction([&](Transaction& t) {
t.setSize(mFGSurfaceControl, 128, 128);
t.setGeometryAppliesWithResize(mFGSurfaceControl);
t.setFinalCrop(mFGSurfaceControl, Rect(64, 64, 127, 127));
});
EXPECT_INITIAL_STATE("after setting crop (with geometryAppliesWithResize)");
// We now submit our old buffer, at the old size, and ensure it doesn't
// trigger geometry latching.
unlockFGBuffer();
EXPECT_INITIAL_STATE("after unlocking FG buffer (with geometryAppliesWithResize)");
completeFGResize();
EXPECT_CROPPED_STATE("after the resize finishes");
}
TEST_F(LayerUpdateTest, DeferredTransactionTest) {
sp<ScreenCapture> sc;
{
SCOPED_TRACE("before anything");
ScreenCapture::captureScreen(&sc);
sc->expectBGColor(32, 32);
sc->expectFGColor(96, 96);
sc->expectBGColor(160, 160);
}
// set up two deferred transactions on different frames
asTransaction([&](Transaction& t) {
t.setAlpha(mFGSurfaceControl, 0.75);
t.deferTransactionUntil(mFGSurfaceControl, mSyncSurfaceControl->getHandle(),
mSyncSurfaceControl->getSurface()->getNextFrameNumber());
});
asTransaction([&](Transaction& t) {
t.setPosition(mFGSurfaceControl, 128, 128);
t.deferTransactionUntil(mFGSurfaceControl, mSyncSurfaceControl->getHandle(),
mSyncSurfaceControl->getSurface()->getNextFrameNumber() + 1);
});
{
SCOPED_TRACE("before any trigger");
ScreenCapture::captureScreen(&sc);
sc->expectBGColor(32, 32);
sc->expectFGColor(96, 96);
sc->expectBGColor(160, 160);
}
// should trigger the first deferred transaction, but not the second one
fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);
{
SCOPED_TRACE("after first trigger");
ScreenCapture::captureScreen(&sc);
sc->expectBGColor(32, 32);
sc->checkPixel(96, 96, 162, 63, 96);
sc->expectBGColor(160, 160);
}
// should show up immediately since it's not deferred
asTransaction([&](Transaction& t) { t.setAlpha(mFGSurfaceControl, 1.0); });
// trigger the second deferred transaction
fillSurfaceRGBA8(mSyncSurfaceControl, 31, 31, 31);
{
SCOPED_TRACE("after second trigger");
ScreenCapture::captureScreen(&sc);
sc->expectBGColor(32, 32);
sc->expectBGColor(96, 96);
sc->expectFGColor(160, 160);
}
}
TEST_F(LayerUpdateTest, LayerWithNoBuffersResizesImmediately) {
sp<ScreenCapture> sc;
sp<SurfaceControl> childNoBuffer =
mComposerClient->createSurface(String8("Bufferless child"), 10, 10,
PIXEL_FORMAT_RGBA_8888, 0, mFGSurfaceControl.get());
sp<SurfaceControl> childBuffer =
mComposerClient->createSurface(String8("Buffered child"), 20, 20,
PIXEL_FORMAT_RGBA_8888, 0, childNoBuffer.get());
fillSurfaceRGBA8(childBuffer, 200, 200, 200);
SurfaceComposerClient::Transaction{}.show(childNoBuffer).show(childBuffer).apply(true);
{
ScreenCapture::captureScreen(&sc);
sc->expectChildColor(73, 73);
sc->expectFGColor(74, 74);
}
SurfaceComposerClient::Transaction{}.setSize(childNoBuffer, 20, 20).apply(true);
{
ScreenCapture::captureScreen(&sc);
sc->expectChildColor(73, 73);
sc->expectChildColor(74, 74);
}
}
TEST_F(LayerUpdateTest, MergingTransactions) {
sp<ScreenCapture> sc;
{
SCOPED_TRACE("before move");
ScreenCapture::captureScreen(&sc);
sc->expectBGColor(0, 12);
sc->expectFGColor(75, 75);
sc->expectBGColor(145, 145);
}
Transaction t1, t2;
t1.setPosition(mFGSurfaceControl, 128, 128);
t2.setPosition(mFGSurfaceControl, 0, 0);
// We expect that the position update from t2 now
// overwrites the position update from t1.
t1.merge(std::move(t2));
t1.apply();
{
ScreenCapture::captureScreen(&sc);
sc->expectFGColor(1, 1);
}
}
class ChildLayerTest : public LayerUpdateTest {
protected:
void SetUp() override {
LayerUpdateTest::SetUp();
mChild = mComposerClient->createSurface(String8("Child surface"), 10, 10,
PIXEL_FORMAT_RGBA_8888, 0, mFGSurfaceControl.get());
fillSurfaceRGBA8(mChild, 200, 200, 200);
{
SCOPED_TRACE("before anything");
ScreenCapture::captureScreen(&mCapture);
mCapture->expectChildColor(64, 64);
}
}
void TearDown() override {
LayerUpdateTest::TearDown();
mChild = 0;
}
sp<SurfaceControl> mChild;
sp<ScreenCapture> mCapture;
};
TEST_F(ChildLayerTest, ChildLayerPositioning) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 10, 10);
t.setPosition(mFGSurfaceControl, 64, 64);
});
{
ScreenCapture::captureScreen(&mCapture);
// Top left of foreground must now be visible
mCapture->expectFGColor(64, 64);
// But 10 pixels in we should see the child surface
mCapture->expectChildColor(74, 74);
// And 10 more pixels we should be back to the foreground surface
mCapture->expectFGColor(84, 84);
}
asTransaction([&](Transaction& t) { t.setPosition(mFGSurfaceControl, 0, 0); });
{
ScreenCapture::captureScreen(&mCapture);
// Top left of foreground should now be at 0, 0
mCapture->expectFGColor(0, 0);
// But 10 pixels in we should see the child surface
mCapture->expectChildColor(10, 10);
// And 10 more pixels we should be back to the foreground surface
mCapture->expectFGColor(20, 20);
}
}
TEST_F(ChildLayerTest, ChildLayerCropping) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 0, 0);
t.setPosition(mFGSurfaceControl, 0, 0);
t.setCrop(mFGSurfaceControl, Rect(0, 0, 5, 5));
});
{
ScreenCapture::captureScreen(&mCapture);
mCapture->expectChildColor(0, 0);
mCapture->expectChildColor(4, 4);
mCapture->expectBGColor(5, 5);
}
}
TEST_F(ChildLayerTest, ChildLayerFinalCropping) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 0, 0);
t.setPosition(mFGSurfaceControl, 0, 0);
t.setFinalCrop(mFGSurfaceControl, Rect(0, 0, 5, 5));
});
{
ScreenCapture::captureScreen(&mCapture);
mCapture->expectChildColor(0, 0);
mCapture->expectChildColor(4, 4);
mCapture->expectBGColor(5, 5);
}
}
TEST_F(ChildLayerTest, ChildLayerConstraints) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mFGSurfaceControl, 0, 0);
t.setPosition(mChild, 63, 63);
});
{
ScreenCapture::captureScreen(&mCapture);
mCapture->expectFGColor(0, 0);
// Last pixel in foreground should now be the child.
mCapture->expectChildColor(63, 63);
// But the child should be constrained and the next pixel
// must be the background
mCapture->expectBGColor(64, 64);
}
}
TEST_F(ChildLayerTest, ChildLayerScaling) {
asTransaction([&](Transaction& t) { t.setPosition(mFGSurfaceControl, 0, 0); });
// Find the boundary between the parent and child
{
ScreenCapture::captureScreen(&mCapture);
mCapture->expectChildColor(9, 9);
mCapture->expectFGColor(10, 10);
}
asTransaction([&](Transaction& t) { t.setMatrix(mFGSurfaceControl, 2.0, 0, 0, 2.0); });
// The boundary should be twice as far from the origin now.
// The pixels from the last test should all be child now
{
ScreenCapture::captureScreen(&mCapture);
mCapture->expectChildColor(9, 9);
mCapture->expectChildColor(10, 10);
mCapture->expectChildColor(19, 19);
mCapture->expectFGColor(20, 20);
}
}
TEST_F(ChildLayerTest, ChildLayerAlpha) {
fillSurfaceRGBA8(mBGSurfaceControl, 0, 0, 254);
fillSurfaceRGBA8(mFGSurfaceControl, 254, 0, 0);
fillSurfaceRGBA8(mChild, 0, 254, 0);
waitForPostedBuffers();
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 0, 0);
t.setPosition(mFGSurfaceControl, 0, 0);
});
{
ScreenCapture::captureScreen(&mCapture);
// Unblended child color
mCapture->checkPixel(0, 0, 0, 254, 0);
}
asTransaction([&](Transaction& t) { t.setAlpha(mChild, 0.5); });
{
ScreenCapture::captureScreen(&mCapture);
// Child and BG blended.
mCapture->checkPixel(0, 0, 127, 127, 0);
}
asTransaction([&](Transaction& t) { t.setAlpha(mFGSurfaceControl, 0.5); });
{
ScreenCapture::captureScreen(&mCapture);
// Child and BG blended.
mCapture->checkPixel(0, 0, 95, 64, 95);
}
}
TEST_F(ChildLayerTest, ReparentChildren) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 10, 10);
t.setPosition(mFGSurfaceControl, 64, 64);
});
{
ScreenCapture::captureScreen(&mCapture);
// Top left of foreground must now be visible
mCapture->expectFGColor(64, 64);
// But 10 pixels in we should see the child surface
mCapture->expectChildColor(74, 74);
// And 10 more pixels we should be back to the foreground surface
mCapture->expectFGColor(84, 84);
}
asTransaction([&](Transaction& t) {
t.reparentChildren(mFGSurfaceControl, mBGSurfaceControl->getHandle());
});
{
ScreenCapture::captureScreen(&mCapture);
mCapture->expectFGColor(64, 64);
// In reparenting we should have exposed the entire foreground surface.
mCapture->expectFGColor(74, 74);
// And the child layer should now begin at 10, 10 (since the BG
// layer is at (0, 0)).
mCapture->expectBGColor(9, 9);
mCapture->expectChildColor(10, 10);
}
}
TEST_F(ChildLayerTest, DetachChildrenSameClient) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 10, 10);
t.setPosition(mFGSurfaceControl, 64, 64);
});
{
ScreenCapture::captureScreen(&mCapture);
// Top left of foreground must now be visible
mCapture->expectFGColor(64, 64);
// But 10 pixels in we should see the child surface
mCapture->expectChildColor(74, 74);
// And 10 more pixels we should be back to the foreground surface
mCapture->expectFGColor(84, 84);
}
asTransaction([&](Transaction& t) { t.detachChildren(mFGSurfaceControl); });
asTransaction([&](Transaction& t) { t.hide(mChild); });
// Since the child has the same client as the parent, it will not get
// detached and will be hidden.
{
ScreenCapture::captureScreen(&mCapture);
mCapture->expectFGColor(64, 64);
mCapture->expectFGColor(74, 74);
mCapture->expectFGColor(84, 84);
}
}
TEST_F(ChildLayerTest, DetachChildrenDifferentClient) {
sp<SurfaceComposerClient> mNewComposerClient = new SurfaceComposerClient;
sp<SurfaceControl> mChildNewClient =
mNewComposerClient->createSurface(String8("New Child Test Surface"), 10, 10,
PIXEL_FORMAT_RGBA_8888, 0, mFGSurfaceControl.get());
ASSERT_TRUE(mChildNewClient != nullptr);
ASSERT_TRUE(mChildNewClient->isValid());
fillSurfaceRGBA8(mChildNewClient, 200, 200, 200);
asTransaction([&](Transaction& t) {
t.hide(mChild);
t.show(mChildNewClient);
t.setPosition(mChildNewClient, 10, 10);
t.setPosition(mFGSurfaceControl, 64, 64);
});
{
ScreenCapture::captureScreen(&mCapture);
// Top left of foreground must now be visible
mCapture->expectFGColor(64, 64);
// But 10 pixels in we should see the child surface
mCapture->expectChildColor(74, 74);
// And 10 more pixels we should be back to the foreground surface
mCapture->expectFGColor(84, 84);
}
asTransaction([&](Transaction& t) { t.detachChildren(mFGSurfaceControl); });
asTransaction([&](Transaction& t) { t.hide(mChildNewClient); });
// Nothing should have changed.
{
ScreenCapture::captureScreen(&mCapture);
mCapture->expectFGColor(64, 64);
mCapture->expectChildColor(74, 74);
mCapture->expectFGColor(84, 84);
}
}
TEST_F(ChildLayerTest, ChildrenInheritNonTransformScalingFromParent) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 0, 0);
t.setPosition(mFGSurfaceControl, 0, 0);
});
{
ScreenCapture::captureScreen(&mCapture);
// We've positioned the child in the top left.
mCapture->expectChildColor(0, 0);
// But it's only 10x10.
mCapture->expectFGColor(10, 10);
}
asTransaction([&](Transaction& t) {
t.setOverrideScalingMode(mFGSurfaceControl, NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW);
// We cause scaling by 2.
t.setSize(mFGSurfaceControl, 128, 128);
});
{
ScreenCapture::captureScreen(&mCapture);
// We've positioned the child in the top left.
mCapture->expectChildColor(0, 0);
mCapture->expectChildColor(10, 10);
mCapture->expectChildColor(19, 19);
// And now it should be scaled all the way to 20x20
mCapture->expectFGColor(20, 20);
}
}
// Regression test for b/37673612
TEST_F(ChildLayerTest, ChildrenWithParentBufferTransform) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 0, 0);
t.setPosition(mFGSurfaceControl, 0, 0);
});
{
ScreenCapture::captureScreen(&mCapture);
// We've positioned the child in the top left.
mCapture->expectChildColor(0, 0);
// But it's only 10x10.
mCapture->expectFGColor(10, 10);
}
// We set things up as in b/37673612 so that there is a mismatch between the buffer size and
// the WM specified state size.
asTransaction([&](Transaction& t) { t.setSize(mFGSurfaceControl, 128, 64); });
sp<Surface> s = mFGSurfaceControl->getSurface();
auto anw = static_cast<ANativeWindow*>(s.get());
native_window_set_buffers_transform(anw, NATIVE_WINDOW_TRANSFORM_ROT_90);
native_window_set_buffers_dimensions(anw, 64, 128);
fillSurfaceRGBA8(mFGSurfaceControl, 195, 63, 63);
waitForPostedBuffers();
{
// The child should still be in the same place and not have any strange scaling as in
// b/37673612.
ScreenCapture::captureScreen(&mCapture);
mCapture->expectChildColor(0, 0);
mCapture->expectFGColor(10, 10);
}
}
TEST_F(ChildLayerTest, Bug36858924) {
// Destroy the child layer
mChild.clear();
// Now recreate it as hidden
mChild = mComposerClient->createSurface(String8("Child surface"), 10, 10,
PIXEL_FORMAT_RGBA_8888, ISurfaceComposerClient::eHidden,
mFGSurfaceControl.get());
// Show the child layer in a deferred transaction
asTransaction([&](Transaction& t) {
t.deferTransactionUntil(mChild, mFGSurfaceControl->getHandle(),
mFGSurfaceControl->getSurface()->getNextFrameNumber());
t.show(mChild);
});
// Render the foreground surface a few times
//
// Prior to the bugfix for b/36858924, this would usually hang while trying to fill the third
// frame because SurfaceFlinger would never process the deferred transaction and would therefore
// never acquire/release the first buffer
ALOGI("Filling 1");
fillSurfaceRGBA8(mFGSurfaceControl, 0, 255, 0);
ALOGI("Filling 2");
fillSurfaceRGBA8(mFGSurfaceControl, 0, 0, 255);
ALOGI("Filling 3");
fillSurfaceRGBA8(mFGSurfaceControl, 255, 0, 0);
ALOGI("Filling 4");
fillSurfaceRGBA8(mFGSurfaceControl, 0, 255, 0);
}
TEST_F(ChildLayerTest, Reparent) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 10, 10);
t.setPosition(mFGSurfaceControl, 64, 64);
});
{
ScreenCapture::captureScreen(&mCapture);
// Top left of foreground must now be visible
mCapture->expectFGColor(64, 64);
// But 10 pixels in we should see the child surface
mCapture->expectChildColor(74, 74);
// And 10 more pixels we should be back to the foreground surface
mCapture->expectFGColor(84, 84);
}
asTransaction([&](Transaction& t) { t.reparent(mChild, mBGSurfaceControl->getHandle()); });
{
ScreenCapture::captureScreen(&mCapture);
mCapture->expectFGColor(64, 64);
// In reparenting we should have exposed the entire foreground surface.
mCapture->expectFGColor(74, 74);
// And the child layer should now begin at 10, 10 (since the BG
// layer is at (0, 0)).
mCapture->expectBGColor(9, 9);
mCapture->expectChildColor(10, 10);
}
}
TEST_F(ChildLayerTest, ReparentToNoParent) {
asTransaction([&](Transaction& t) {
t.show(mChild);
t.setPosition(mChild, 10, 10);
t.setPosition(mFGSurfaceControl, 64, 64);
});
{
ScreenCapture::captureScreen(&mCapture);
// Top left of foreground must now be visible
mCapture->expectFGColor(64, 64);
// But 10 pixels in we should see the child surface
mCapture->expectChildColor(74, 74);
// And 10 more pixels we should be back to the foreground surface
mCapture->expectFGColor(84, 84);
}
asTransaction([&](Transaction& t) { t.reparent(mChild, nullptr); });
{
ScreenCapture::captureScreen(&mCapture