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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "ppapi/shared_impl/media_stream_buffer_manager.h"
#include <stdint.h>
#include <utility>
#include "base/memory/unsafe_shared_memory_region.h"
#include "ppapi/c/pp_errors.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
base::UnsafeSharedMemoryRegion CreateSharedMemory(int32_t buffer_size,
int32_t number_of_buffers) {
base::UnsafeSharedMemoryRegion region =
base::UnsafeSharedMemoryRegion::Create(buffer_size * number_of_buffers);
EXPECT_TRUE(region.IsValid());
return region;
}
} // namespace
namespace ppapi {
class MockDelegate : public MediaStreamBufferManager::Delegate {
public:
MockDelegate() : new_buffer_enqueue_counter_(0) {}
void OnNewBufferEnqueued() override {
new_buffer_enqueue_counter_++;
}
int32_t new_buffer_enqueue_counter_;
};
TEST(MediaStreamBufferManager, General) {
{
const int32_t kNumberOfBuffers = 5;
const int32_t kBufferSize = 128;
MockDelegate delegate;
MediaStreamBufferManager manager(&delegate);
base::UnsafeSharedMemoryRegion shared_memory =
CreateSharedMemory(kBufferSize, kNumberOfBuffers);
// SetBuffers with enqueue_all_buffers = true;
EXPECT_TRUE(manager.SetBuffers(kNumberOfBuffers, kBufferSize,
std::move(shared_memory), true));
int8_t* memory = reinterpret_cast<int8_t*>(manager.GetBufferPointer(0));
EXPECT_NE(static_cast<int8_t*>(NULL), memory);
EXPECT_EQ(kNumberOfBuffers, manager.number_of_buffers());
EXPECT_EQ(kBufferSize, manager.buffer_size());
EXPECT_TRUE(manager.HasAvailableBuffer());
// Test DequeueBuffer() and GetBufferPointer()
for (int32_t i = 0; i < kNumberOfBuffers; ++i) {
EXPECT_EQ(i, manager.DequeueBuffer());
EXPECT_EQ(reinterpret_cast<MediaStreamBuffer*>(memory + i * kBufferSize),
manager.GetBufferPointer(i));
}
manager.EnqueueBuffer(0);
manager.EnqueueBuffer(4);
manager.EnqueueBuffer(3);
manager.EnqueueBuffer(1);
manager.EnqueueBuffer(2);
EXPECT_EQ(5, delegate.new_buffer_enqueue_counter_);
EXPECT_EQ(0, manager.DequeueBuffer());
EXPECT_EQ(4, manager.DequeueBuffer());
EXPECT_EQ(3, manager.DequeueBuffer());
EXPECT_EQ(1, manager.DequeueBuffer());
EXPECT_EQ(2, manager.DequeueBuffer());
EXPECT_EQ(PP_ERROR_FAILED, manager.DequeueBuffer());
EXPECT_EQ(PP_ERROR_FAILED, manager.DequeueBuffer());
EXPECT_FALSE(manager.HasAvailableBuffer());
// Returns NULL for invalid index to GetBufferPointer()
EXPECT_EQ(NULL, manager.GetBufferPointer(-1));
EXPECT_EQ(NULL, manager.GetBufferPointer(kNumberOfBuffers));
// Test crash for passing invalid index to EnqueueBuffer().
// String arguments aren't passed to CHECK() in official builds.
#if defined(OFFICIAL_BUILD) && defined(NDEBUG)
EXPECT_DEATH(manager.EnqueueBuffer(-1), "");
EXPECT_DEATH(manager.EnqueueBuffer(kNumberOfBuffers), "");
#else
EXPECT_DEATH(manager.EnqueueBuffer(-1), ".*Check failed: index >= 0.*");
EXPECT_DEATH(manager.EnqueueBuffer(kNumberOfBuffers),
".*Check failed: index < number_of_buffers_.*");
#endif
}
{
const int32_t kNumberOfBuffers = 5;
const int32_t kBufferSize = 128;
MockDelegate delegate;
MediaStreamBufferManager manager(&delegate);
base::UnsafeSharedMemoryRegion shared_memory =
CreateSharedMemory(kBufferSize, kNumberOfBuffers);
// SetBuffers with enqueue_all_buffers = false;
EXPECT_TRUE(manager.SetBuffers(kNumberOfBuffers, kBufferSize,
std::move(shared_memory), false));
int8_t* memory = reinterpret_cast<int8_t*>(manager.GetBufferPointer(0));
EXPECT_NE(static_cast<int8_t*>(NULL), memory);
EXPECT_EQ(kNumberOfBuffers, manager.number_of_buffers());
EXPECT_EQ(kBufferSize, manager.buffer_size());
// Test DequeueBuffer() and GetBufferPointer()
for (int32_t i = 0; i < kNumberOfBuffers; ++i) {
EXPECT_EQ(PP_ERROR_FAILED, manager.DequeueBuffer());
EXPECT_EQ(reinterpret_cast<MediaStreamBuffer*>(memory + i * kBufferSize),
manager.GetBufferPointer(i));
}
}
}
TEST(MediaStreamBufferManager, ResetBuffers) {
const int32_t kNumberOfBuffers1 = 5;
const int32_t kBufferSize1 = 128;
const int32_t kNumberOfBuffers2 = 8;
const int32_t kBufferSize2 = 256;
MockDelegate delegate;
MediaStreamBufferManager manager(&delegate);
{
base::UnsafeSharedMemoryRegion shared_memory =
CreateSharedMemory(kBufferSize1, kNumberOfBuffers1);
// SetBuffers with enqueue_all_buffers = true;
EXPECT_TRUE(manager.SetBuffers(kNumberOfBuffers1, kBufferSize1,
std::move(shared_memory), true));
int8_t* memory = reinterpret_cast<int8_t*>(manager.GetBufferPointer(0));
EXPECT_NE(static_cast<int8_t*>(NULL), memory);
EXPECT_EQ(kNumberOfBuffers1, manager.number_of_buffers());
EXPECT_EQ(kBufferSize1, manager.buffer_size());
// Test DequeueBuffer() and GetBufferPointer()
for (int32_t i = 0; i < kNumberOfBuffers1; ++i) {
EXPECT_EQ(i, manager.DequeueBuffer());
EXPECT_EQ(reinterpret_cast<MediaStreamBuffer*>(memory + i * kBufferSize1),
manager.GetBufferPointer(i));
}
}
{
base::UnsafeSharedMemoryRegion shared_memory =
CreateSharedMemory(kBufferSize2, kNumberOfBuffers2);
// SetBuffers with enqueue_all_buffers = true;
EXPECT_TRUE(manager.SetBuffers(kNumberOfBuffers2, kBufferSize2,
std::move(shared_memory), true));
int8_t* memory = reinterpret_cast<int8_t*>(manager.GetBufferPointer(0));
EXPECT_NE(static_cast<int8_t*>(NULL), memory);
EXPECT_EQ(kNumberOfBuffers2, manager.number_of_buffers());
EXPECT_EQ(kBufferSize2, manager.buffer_size());
// Test DequeueBuffer() and GetBufferPointer()
for (int32_t i = 0; i < kNumberOfBuffers2; ++i) {
EXPECT_EQ(i, manager.DequeueBuffer());
EXPECT_EQ(reinterpret_cast<MediaStreamBuffer*>(memory + i * kBufferSize2),
manager.GetBufferPointer(i));
}
}
}
} // namespace ppapi
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