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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/gpu/buffer_validation.h"
#include <fcntl.h>
#include "base/files/scoped_file.h"
#include "base/functional/bind.h"
#include "media/base/video_frame.h"
#include "media/base/video_types.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/gpu_memory_buffer_handle.h"
#include "ui/gfx/native_pixmap_handle.h"
namespace media {
namespace {
base::ScopedFD GetDummyFD() {
base::ScopedFD fd(open("/dev/zero", O_RDWR));
DCHECK(fd.is_valid());
return fd;
}
size_t FileSizeForTesting(size_t size) {
return size;
}
TEST(BufferValidationTest, VerifyGmbHandlePasses) {
gfx::NativePixmapHandle native_pixmap_handle;
native_pixmap_handle.planes.emplace_back(
/*stride=*/50, /*offset=*/0, /*size=*/2500, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/2500, /*size=*/625, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/3125, /*size=*/625, GetDummyFD());
constexpr size_t buffer_size = 2500 + 2 * 625;
const gfx::Size size(50, 50);
gfx::GpuMemoryBufferHandle gmb_handle(std::move(native_pixmap_handle));
EXPECT_TRUE(VerifyGpuMemoryBufferHandle(
PIXEL_FORMAT_I420, size, gmb_handle,
base::BindRepeating(FileSizeForTesting, buffer_size)));
}
TEST(BufferValidationTest, VerifyGmbHandleInvalidType) {
gfx::GpuMemoryBufferHandle gmb_handle;
gmb_handle.type = gfx::EMPTY_BUFFER;
const gfx::Size size(50, 50);
EXPECT_FALSE(VerifyGpuMemoryBufferHandle(
PIXEL_FORMAT_I420, size, gmb_handle,
base::BindRepeating(FileSizeForTesting, size.GetArea() * 2)));
}
TEST(BufferValidationTest, VerifyGmbHandlePlanesCountMatches) {
gfx::NativePixmapHandle native_pixmap_handle;
native_pixmap_handle.planes.emplace_back(
/*stride=*/50, /*offset=*/0, /*size=*/2500, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/2500, /*size=*/625, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/3125, /*size=*/625, GetDummyFD());
constexpr size_t buffer_size = 2500 + 2 * 625;
const gfx::Size size(50, 50);
gfx::GpuMemoryBufferHandle gmb_handle(std::move(native_pixmap_handle));
// PIXEL_FORMAT_UYVY has only 1 plane
// (https://source.chromium.org/chromium/chromium/src/+/main:media/base/video_frame_layout.cc;l=46;drc=eb5094ebb2c2a4128d36d27806b286d288965746)
// The gmb handle will have only 3 planes by default.
EXPECT_FALSE(VerifyGpuMemoryBufferHandle(
PIXEL_FORMAT_UYVY, size, gmb_handle,
base::BindRepeating(FileSizeForTesting, buffer_size)));
}
TEST(BufferValidationTest, VerifyGmbHandleStridesMonotonicallyDecrease) {
// Make strides increase. Normal expectation is that they monotonically
// decrease.
gfx::NativePixmapHandle native_pixmap_handle;
native_pixmap_handle.planes.emplace_back(
/*stride=*/50, /*offset=*/0, /*size=*/2500, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/60, /*offset=*/2500, /*size=*/1500, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/70, /*offset=*/4000, /*size=*/1750, GetDummyFD());
constexpr size_t buffer_size = 2500 + 1500 + 1750;
const gfx::Size size(50, 50);
gfx::GpuMemoryBufferHandle gmb_handle(std::move(native_pixmap_handle));
EXPECT_FALSE(VerifyGpuMemoryBufferHandle(
PIXEL_FORMAT_I420, size, gmb_handle,
base::BindRepeating(FileSizeForTesting, buffer_size)));
}
TEST(BufferValidationTest, VerifyGmbHandleInvalidPlaneHeight) {
gfx::NativePixmapHandle native_pixmap_handle;
native_pixmap_handle.planes.emplace_back(
/*stride=*/50, /*offset=*/0, /*size=*/2500, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/2500, /*size=*/625, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/3125, /*size=*/625, GetDummyFD());
constexpr size_t buffer_size = 2500 + 2 * 625;
// Make the height greater than the planes'.
const gfx::Size size(50, 100);
gfx::GpuMemoryBufferHandle gmb_handle(std::move(native_pixmap_handle));
EXPECT_FALSE(VerifyGpuMemoryBufferHandle(
PIXEL_FORMAT_I420, size, gmb_handle,
base::BindRepeating(FileSizeForTesting, buffer_size)));
}
TEST(BufferValidationTest, VerifyGmbHandleInvalidPlaneWidth) {
gfx::NativePixmapHandle native_pixmap_handle;
native_pixmap_handle.planes.emplace_back(
/*stride=*/50, /*offset=*/0, /*size=*/2500, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/2500, /*size=*/625, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/3125, /*size=*/625, GetDummyFD());
constexpr size_t buffer_size = 2500 + 2 * 625;
// Make the width greater than the planes'.
const gfx::Size size(100, 50);
gfx::GpuMemoryBufferHandle gmb_handle(std::move(native_pixmap_handle));
EXPECT_FALSE(VerifyGpuMemoryBufferHandle(
PIXEL_FORMAT_I420, size, gmb_handle,
base::BindRepeating(FileSizeForTesting, buffer_size)));
}
TEST(BufferValidationTest, VerifyGmbHandleOffsetValid) {
gfx::NativePixmapHandle native_pixmap_handle;
native_pixmap_handle.planes.emplace_back(
/*stride=*/50, /*offset=*/0, /*size=*/2500, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/2500, /*size=*/625, GetDummyFD());
native_pixmap_handle.planes.emplace_back(
/*stride=*/25, /*offset=*/3125, /*size=*/625, GetDummyFD());
const gfx::Size size(50, 50);
gfx::GpuMemoryBufferHandle gmb_handle(std::move(native_pixmap_handle));
// Make the file size less than the plane size.
EXPECT_FALSE(VerifyGpuMemoryBufferHandle(
PIXEL_FORMAT_I420, size, gmb_handle,
base::BindRepeating(FileSizeForTesting, 2499)));
}
} // namespace
} // namespace media
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