556 lines
10 KiB
C++
556 lines
10 KiB
C++
// Copyright (c) 2016-2018 Easy2D - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include "..\e2dtool.h"
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#include "..\e2dmodule.h"
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namespace
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{
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void OutputDebugStringExW(LPCWSTR pszOutput, ...)
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{
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va_list args = NULL;
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va_start(args, pszOutput);
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size_t nLen = _vscwprintf(pszOutput, args) + 1;
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wchar_t* psBuffer = new wchar_t[nLen];
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_vsnwprintf_s(psBuffer, nLen, nLen, pszOutput, args);
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va_end(args);
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::OutputDebugStringW(psBuffer);
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delete[] psBuffer;
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}
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inline void TraceError(LPCWSTR output)
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{
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OutputDebugStringExW(L"[easy2d] Music error: %s failed!\r\n", output);
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}
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inline void TraceError(LPCWSTR output, HRESULT hr)
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{
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OutputDebugStringExW(L"[easy2d] Music error: %s (%#X)\r\n", output, hr);
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}
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}
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namespace easy2d
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{
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// ÒôƵ½âÂëÆ÷
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class Transcoder
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{
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WAVEFORMATEX* wave_format_;
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public:
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Transcoder()
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: wave_format_(nullptr)
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{
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}
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~Transcoder()
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{
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if (wave_format_)
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{
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::CoTaskMemFree(wave_format_);
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wave_format_ = nullptr;
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}
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}
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WAVEFORMATEX* GetWaveFormatEx()
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{
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return wave_format_;
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}
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bool LoadMediaFile(LPCWSTR file_path, BYTE** wave_data, UINT32* wave_data_size)
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{
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HRESULT hr = S_OK;
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IMFSourceReader* reader = nullptr;
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hr = MFCreateSourceReaderFromURL(
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file_path,
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nullptr,
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&reader
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);
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if (SUCCEEDED(hr))
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{
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hr = ReadSource(reader, wave_data, wave_data_size);
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}
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SafeRelease(reader);
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return SUCCEEDED(hr);
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}
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bool LoadMediaResource(Resource& res, BYTE** wave_data, UINT32* wave_data_size)
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{
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HRESULT hr = S_OK;
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HINSTANCE hinstance = GetModuleHandle(nullptr);
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IStream* stream = nullptr;
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IMFByteStream* byte_stream = nullptr;
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IMFSourceReader* reader = nullptr;
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if (!res.Load()) { return false; }
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stream = SHCreateMemStream(
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static_cast<const BYTE*>(res.GetData()),
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static_cast<UINT>(res.GetDataSize())
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);
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if (stream == nullptr)
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{
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TraceError(L"SHCreateMemStream");
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return false;
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}
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if (SUCCEEDED(hr))
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{
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hr = MFCreateMFByteStreamOnStream(stream, &byte_stream);
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}
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if (SUCCEEDED(hr))
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{
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hr = MFCreateSourceReaderFromByteStream(
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byte_stream,
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nullptr,
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&reader
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);
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}
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if (SUCCEEDED(hr))
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{
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hr = ReadSource(reader, wave_data, wave_data_size);
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}
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SafeRelease(stream);
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SafeRelease(byte_stream);
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SafeRelease(reader);
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return SUCCEEDED(hr);
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}
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HRESULT ReadSource(IMFSourceReader* reader, BYTE** wave_data, UINT32* wave_data_size)
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{
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HRESULT hr = S_OK;
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DWORD max_stream_size = 0;
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IMFMediaType* partial_type = nullptr;
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IMFMediaType* uncompressed_type = nullptr;
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hr = MFCreateMediaType(&partial_type);
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if (SUCCEEDED(hr))
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{
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hr = partial_type->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Audio);
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}
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if (SUCCEEDED(hr))
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{
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hr = partial_type->SetGUID(MF_MT_SUBTYPE, MFAudioFormat_PCM);
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}
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// ÉèÖà source reader µÄýÌåÀàÐÍ£¬Ëü½«Ê¹ÓúÏÊʵĽâÂëÆ÷È¥½âÂëÕâ¸öÒôƵ
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if (SUCCEEDED(hr))
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{
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hr = reader->SetCurrentMediaType(
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MF_SOURCE_READER_FIRST_AUDIO_STREAM,
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0,
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partial_type
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);
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}
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// ´Ó IMFMediaType ÖлñÈ¡ WAVEFORMAT ½á¹¹
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if (SUCCEEDED(hr))
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{
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hr = reader->GetCurrentMediaType(
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MF_SOURCE_READER_FIRST_AUDIO_STREAM,
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&uncompressed_type
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);
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}
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// Ö¸¶¨ÒôƵÁ÷
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if (SUCCEEDED(hr))
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{
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hr = reader->SetStreamSelection(
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MF_SOURCE_READER_FIRST_AUDIO_STREAM,
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true
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);
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}
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// »ñÈ¡ WAVEFORMAT Êý¾Ý
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if (SUCCEEDED(hr))
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{
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UINT32 size = 0;
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hr = MFCreateWaveFormatExFromMFMediaType(
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uncompressed_type,
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&wave_format_,
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&size
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);
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}
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// ¹ÀËãÒôƵÁ÷´óС
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if (SUCCEEDED(hr))
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{
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PROPVARIANT prop;
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PropVariantInit(&prop);
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hr = reader->GetPresentationAttribute(
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MF_SOURCE_READER_MEDIASOURCE,
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MF_PD_DURATION,
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&prop
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);
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LONGLONG duration = prop.uhVal.QuadPart;
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max_stream_size = static_cast<DWORD>(
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(duration * wave_format_->nAvgBytesPerSec) / 10000000 + 1
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);
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PropVariantClear(&prop);
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}
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// ¶ÁÈ¡ÒôƵÊý¾Ý
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if (SUCCEEDED(hr))
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{
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DWORD flags = 0;
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DWORD position = 0;
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IMFSample* sample = nullptr;
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IMFMediaBuffer* buffer = nullptr;
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BYTE* data = new (std::nothrow) BYTE[max_stream_size];
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if (data == nullptr)
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{
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TraceError(L"Low memory");
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hr = E_OUTOFMEMORY;
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}
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else
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{
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while (true)
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{
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hr = reader->ReadSample(
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MF_SOURCE_READER_FIRST_AUDIO_STREAM,
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0,
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nullptr,
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&flags,
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nullptr,
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&sample
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);
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if (flags & MF_SOURCE_READERF_ENDOFSTREAM) { break; }
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if (sample == nullptr) { continue; }
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if (SUCCEEDED(hr))
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{
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hr = sample->ConvertToContiguousBuffer(&buffer);
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if (SUCCEEDED(hr))
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{
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BYTE *audio_data = nullptr;
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DWORD sample_buffer_length = 0;
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hr = buffer->Lock(
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&audio_data,
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nullptr,
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&sample_buffer_length
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);
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if (SUCCEEDED(hr))
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{
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for (DWORD i = 0; i < sample_buffer_length; i++)
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{
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data[position++] = audio_data[i];
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}
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hr = buffer->Unlock();
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}
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}
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SafeRelease(buffer);
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}
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SafeRelease(sample);
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if (FAILED(hr)) { break; }
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}
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if (SUCCEEDED(hr))
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{
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*wave_data = data;
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*wave_data_size = position;
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}
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}
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}
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SafeRelease(partial_type);
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SafeRelease(uncompressed_type);
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return hr;
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}
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};
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}
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easy2d::Music::Music()
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: opened_(false)
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, playing_(false)
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, wave_data_(nullptr)
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, size_(0)
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, voice_(nullptr)
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{
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}
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easy2d::Music::Music(const std::wstring& file_path)
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: opened_(false)
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, playing_(false)
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, wave_data_(nullptr)
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, size_(0)
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, voice_(nullptr)
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{
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Load(file_path);
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}
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easy2d::Music::Music(Resource& res)
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: opened_(false)
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, playing_(false)
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, wave_data_(nullptr)
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, size_(0)
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, voice_(nullptr)
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{
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Load(res);
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}
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easy2d::Music::~Music()
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{
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Close();
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}
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bool easy2d::Music::Load(const std::wstring & file_path)
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{
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if (opened_)
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{
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Close();
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}
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File music_file;
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if (!music_file.Open(file_path))
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{
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E2D_WARNING("Media file not found.");
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return false;
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}
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// Óû§ÊäÈëµÄ·¾¶²»Ò»¶¨ÊÇÍêÕû·¾¶£¬ÒòΪÓû§¿ÉÄÜͨ¹ý File::AddSearchPath Ìí¼Ó
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// ĬÈÏËÑË÷·¾¶£¬ËùÒÔÐèҪͨ¹ý File::GetPath »ñÈ¡ÍêÕû·¾¶
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std::wstring music_file_path = music_file.GetPath();
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Transcoder transcoder;
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if (!transcoder.LoadMediaFile(music_file_path.c_str(), &wave_data_, &size_))
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{
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return false;
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}
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HRESULT hr = Device::GetAudio()->CreateVoice(&voice_, transcoder.GetWaveFormatEx());
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if (FAILED(hr))
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{
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if (wave_data_)
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{
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delete[] wave_data_;
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wave_data_ = nullptr;
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}
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TraceError(L"Create source voice error", hr);
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return false;
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}
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opened_ = true;
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return true;
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}
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bool easy2d::Music::Load(Resource& res)
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{
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if (opened_)
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{
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Close();
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}
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Transcoder transcoder;
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if (!transcoder.LoadMediaResource(res, &wave_data_, &size_))
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{
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return false;
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}
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HRESULT hr = Device::GetAudio()->CreateVoice(&voice_, transcoder.GetWaveFormatEx());
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if (FAILED(hr))
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{
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if (wave_data_)
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{
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delete[] wave_data_;
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wave_data_ = nullptr;
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}
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TraceError(L"Create source voice error", hr);
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return false;
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}
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opened_ = true;
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return true;
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}
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bool easy2d::Music::Play(int loop_count)
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{
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if (!opened_)
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{
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E2D_WARNING("Music must be opened first!");
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return false;
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}
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if (voice_ == nullptr)
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{
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E2D_WARNING("IXAudio2SourceVoice Null pointer exception!");
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return false;
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}
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XAUDIO2_VOICE_STATE state;
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voice_->GetState(&state);
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if (state.BuffersQueued)
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{
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Stop();
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}
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if (loop_count < 0)
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{
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loop_count = XAUDIO2_LOOP_INFINITE;
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}
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else
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{
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loop_count = std::min(loop_count, XAUDIO2_LOOP_INFINITE - 1);
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}
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// Ìá½» wave Ñù±¾Êý¾Ý
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XAUDIO2_BUFFER buffer = { 0 };
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buffer.pAudioData = wave_data_;
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buffer.Flags = XAUDIO2_END_OF_STREAM;
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buffer.AudioBytes = size_;
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buffer.LoopCount = loop_count;
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HRESULT hr;
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if (FAILED(hr = voice_->SubmitSourceBuffer(&buffer)))
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{
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TraceError(L"Submitting source buffer error", hr);
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return false;
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}
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hr = voice_->Start(0);
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playing_ = SUCCEEDED(hr);
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return playing_;
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}
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void easy2d::Music::Pause()
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{
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if (voice_)
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{
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if (SUCCEEDED(voice_->Stop()))
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{
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playing_ = false;
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}
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}
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}
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void easy2d::Music::Resume()
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{
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if (voice_)
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{
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if (SUCCEEDED(voice_->Start()))
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{
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playing_ = true;
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}
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}
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}
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void easy2d::Music::Stop()
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{
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if (voice_)
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{
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if (SUCCEEDED(voice_->Stop()))
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{
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voice_->ExitLoop();
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voice_->FlushSourceBuffers();
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playing_ = false;
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}
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}
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}
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void easy2d::Music::Close()
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{
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if (voice_)
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{
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voice_->Stop();
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voice_->FlushSourceBuffers();
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voice_->DestroyVoice();
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voice_ = nullptr;
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}
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if (wave_data_)
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{
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delete[] wave_data_;
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wave_data_ = nullptr;
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}
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opened_ = false;
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playing_ = false;
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}
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bool easy2d::Music::IsPlaying() const
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{
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if (opened_ && voice_)
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{
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XAUDIO2_VOICE_STATE state;
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voice_->GetState(&state);
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if (state.BuffersQueued && playing_)
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return true;
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}
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return false;
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}
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float easy2d::Music::GetVolume() const
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{
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if (voice_)
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{
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float volume = 0.f;
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voice_->GetVolume(&volume);
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return volume;
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}
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return 0.f;
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}
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bool easy2d::Music::SetVolume(float volume)
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{
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if (voice_)
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{
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volume = std::min(std::max(volume, -224.f), 224.f);
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return SUCCEEDED(voice_->SetVolume(volume));
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}
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return false;
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}
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IXAudio2SourceVoice * easy2d::Music::GetSourceVoice() const
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{
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return voice_;
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}
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