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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/memory/scoped_ptr.h"
#include "base/memory/shared_memory.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/shared_impl/media_stream_buffer_manager.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::SharedMemory;
using base::SharedMemoryCreateOptions;
namespace {
scoped_ptr<SharedMemory> CreateSharedMemory(int32_t buffer_size,
int32_t number_of_buffers) {
scoped_ptr<SharedMemory> shared_memory(new SharedMemory());
SharedMemoryCreateOptions options;
options.size = buffer_size * number_of_buffers;
options.executable = false;
EXPECT_TRUE(shared_memory->Create(options));
return shared_memory.Pass();
}
} // namespace
namespace ppapi {
class MockDelegate : public MediaStreamBufferManager::Delegate {
public:
MockDelegate() : new_buffer_enqueue_counter_(0) {}
virtual 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);
scoped_ptr<SharedMemory> shared_memory =
CreateSharedMemory(kBufferSize, kNumberOfBuffers);
// SetBuffers with enqueue_all_buffers = true;
EXPECT_TRUE(manager.SetBuffers(kNumberOfBuffers,
kBufferSize,
shared_memory.Pass(),
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());
// 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());
// 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().
EXPECT_DEATH(manager.EnqueueBuffer(-1),
".*Check failed: index >= 0.*");
EXPECT_DEATH(manager.EnqueueBuffer(kNumberOfBuffers),
".*Check failed: index < number_of_buffers_.*");
}
{
const int32_t kNumberOfBuffers = 5;
const int32_t kBufferSize = 128;
MockDelegate delegate;
MediaStreamBufferManager manager(&delegate);
scoped_ptr<SharedMemory> shared_memory =
CreateSharedMemory(kBufferSize, kNumberOfBuffers);
// SetBuffers with enqueue_all_buffers = false;
EXPECT_TRUE(manager.SetBuffers(kNumberOfBuffers,
kBufferSize,
shared_memory.Pass(),
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);
{
scoped_ptr<SharedMemory> shared_memory(new SharedMemory());
SharedMemoryCreateOptions options;
options.size = kBufferSize1 * kNumberOfBuffers1;
options.executable = false;
EXPECT_TRUE(shared_memory->Create(options));
// SetBuffers with enqueue_all_buffers = true;
EXPECT_TRUE(manager.SetBuffers(kNumberOfBuffers1,
kBufferSize1,
shared_memory.Pass(),
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));
}
}
{
scoped_ptr<SharedMemory> shared_memory =
CreateSharedMemory(kBufferSize2, kNumberOfBuffers2);
// SetBuffers with enqueue_all_buffers = true;
EXPECT_TRUE(manager.SetBuffers(kNumberOfBuffers2,
kBufferSize2,
shared_memory.Pass(),
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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