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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <chrono>
#include <android/native_window.h>
#include <binder/IPCThreadState.h>
#include <gtest/gtest.h>
#include <gui/Surface.h>
#include <gui/SurfaceComposerClient.h>
#include <private/gui/ComposerService.h>
#include <ui/GraphicBuffer.h>
#include <ui/Rect.h>
#include "ColorUtils.h"
namespace android {
namespace {
using namespace std::chrono_literals;
using Transaction = SurfaceComposerClient::Transaction;
std::ostream& operator<<(std::ostream& os, const Color& color) {
os << int(color.r) << ", " << int(color.g) << ", " << int(color.b) << ", " << int(color.a);
return os;
}
class TransactionUtils {
public:
// Fill a region with the specified color.
static 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.
static void fillGraphicBufferColor(const sp<GraphicBuffer>& 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;
uint8_t* pixels;
buffer->lock(GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
reinterpret_cast<void**>(&pixels));
for (int32_t row = 0; row < height; row++) {
uint8_t* dst = pixels + (buffer->getStride() * (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;
}
}
buffer->unlock();
}
// Check if a region has the specified color.
static 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;
}
}
}
static void fillSurfaceRGBA8(const sp<SurfaceControl>& sc, const Color& color,
bool unlock = true) {
fillSurfaceRGBA8(sc, color.r, color.g, color.b, unlock);
}
// 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());
}
}
};
enum class RenderPath { SCREENSHOT, VIRTUAL_DISPLAY };
// Environment for starting up binder threads. This is required for testing
// virtual displays, as BufferQueue parameters may be queried over binder.
class BinderEnvironment : public ::testing::Environment {
public:
void SetUp() override { ProcessState::self()->startThreadPool(); }
};
/** RAII Wrapper around get/seteuid */
class UIDFaker {
uid_t oldId;
public:
UIDFaker(uid_t uid) {
oldId = geteuid();
seteuid(uid);
}
~UIDFaker() { seteuid(oldId); }
};
} // namespace
} // namespace android
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