458 lines
9.1 KiB
C++
458 lines
9.1 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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#pragma once
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#include "e2dutil.h"
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#include "e2dimpl.h"
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namespace e2d
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{
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// 随机数产生器
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class Random
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{
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public:
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// 取得范围内的一个整型随机数
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template<typename T>
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static inline T Range(T min, T max)
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{
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return e2d::Random::RandomInt(min, max);
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}
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// 取得范围内的一个浮点数随机数
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static inline float Range(float min, float max)
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{
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return e2d::Random::RandomReal(min, max);
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}
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// 取得范围内的一个浮点数随机数
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static inline double Range(double min, double max)
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{
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return e2d::Random::RandomReal(min, max);
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}
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private:
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template<typename T>
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static T RandomInt(T min, T max)
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{
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std::uniform_int_distribution<T> dist(min, max);
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return dist(Random::GetEngine());
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}
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template<typename T>
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static T RandomReal(T min, T max)
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{
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std::uniform_real_distribution<T> dist(min, max);
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return dist(Random::GetEngine());
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}
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// 获取随机数产生器
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static std::default_random_engine &GetEngine();
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};
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// 音乐
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class Music
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: public IMFAsyncCallback
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{
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public:
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Music();
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explicit Music(
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const e2d::String& file_path /* 音乐文件路径 */
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);
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explicit Music(
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const Resource& res /* 音乐资源 */
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);
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virtual ~Music();
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// 打开音乐文件
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bool Load(
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const e2d::String& file_path /* 音乐文件路径 */
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);
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// 打开音乐资源
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bool Load(
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const Resource& res
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);
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// 播放
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bool Play(
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int loop_count = 0
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);
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// 暂停
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void Pause();
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// 停止
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void Stop();
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// 关闭并回收资源
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void Close();
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// 是否正在播放
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bool IsPlaying() const;
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// 设置音量
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bool SetVolume(
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float volume /* 范围: 0.0 ~ 1.0 */
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);
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// 获取音量
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float GetVolume() const;
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// IUnknown methods
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STDMETHODIMP QueryInterface(REFIID iid, void** ppv) override;
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STDMETHODIMP_(ULONG) AddRef() override;
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STDMETHODIMP_(ULONG) Release() override;
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// IMFAsyncCallback methods
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STDMETHODIMP GetParameters(DWORD*, DWORD*) override;
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STDMETHODIMP Invoke(IMFAsyncResult* pAsyncResult) override;
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protected:
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enum class State : int
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{
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Closed = 0,
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Loaded,
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Started,
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Paused,
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Stopped,
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Closing
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};
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E2D_DISABLE_COPY(Music);
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// Media event handlers
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HRESULT OnNewPresentation(IMFMediaEvent *pEvent);
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HRESULT StartPlayback();
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HRESULT CreateMediaSource(PCWSTR sURL, IMFMediaSource **ppSource);
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HRESULT HandleEvent(UINT_PTR pUnkPtr);
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// Add a source node to a topology.
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HRESULT AddSourceNode(
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IMFTopology *pTopology, // Topology.
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IMFMediaSource *pSource, // Media source.
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IMFPresentationDescriptor *pPD, // Presentation descriptor.
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IMFStreamDescriptor *pSD, // Stream descriptor.
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IMFTopologyNode **ppNode // Receives the node pointer.
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);
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// Add an output node to a topology.
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HRESULT AddOutputNode(
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IMFTopology *pTopology, // Topology.
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IMFActivate *pActivate, // Media sink activation object.
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DWORD dwId, // Identifier of the stream sink.
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IMFTopologyNode **ppNode // Receives the node pointer.
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);
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HRESULT AddBranchToPartialTopology(
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IMFTopology *pTopology, // Topology.
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IMFMediaSource *pSource, // Media source.
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IMFPresentationDescriptor *pPD, // Presentation descriptor.
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DWORD iStream // Stream index.
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);
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// Create a playback topology from a media source.
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HRESULT CreatePlaybackTopology(
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IMFMediaSource *pSource, // Media source.
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IMFPresentationDescriptor *pPD, // Presentation descriptor.
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IMFTopology **ppTopology // Receives a pointer to the topology.
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);
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// Create an activation object for a renderer, based on the stream media type.
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HRESULT CreateMediaSinkActivate(
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IMFStreamDescriptor *pSourceSD, // Pointer to the stream descriptor.
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IMFActivate **ppActivate
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);
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HRESULT GetSimpleAudioVolume(
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IMFSimpleAudioVolume** ppAudioVolume
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) const;
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static LRESULT CALLBACK MediaProc(
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HWND hWnd,
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UINT Msg,
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WPARAM wParam,
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LPARAM lParam
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);
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protected:
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long m_nRefCount;
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int m_nTimes;
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IMFMediaSession * m_pSession;
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IMFMediaSource *m_pSource;
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HWND m_hwndEvent;
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State m_state;
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HANDLE m_hCloseEvent;
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};
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// 音乐播放器
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class Player
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{
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public:
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Player();
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~Player();
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// 预加载音乐资源
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bool Load(
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const String& file_path /* 音乐文件路径 */
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);
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// 播放音乐
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bool Play(
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const String& file_path, /* 音乐文件路径 */
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int loop_count = 0 /* 重复播放次数，设置 -1 为循环播放 */
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);
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// 暂停音乐
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void Pause(
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const String& file_path /* 音乐文件路径 */
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);
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// 继续播放音乐
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void Resume(
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const String& file_path /* 音乐文件路径 */
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);
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// 停止音乐
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void Stop(
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const String& file_path /* 音乐文件路径 */
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);
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// 获取音乐播放状态
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bool IsPlaying(
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const String& file_path /* 音乐文件路径 */
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);
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// 预加载音乐资源
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bool Load(
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const Resource& res /* 音乐资源 */
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);
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// 播放音乐
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bool Play(
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const Resource& res, /* 音乐资源 */
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int loop_count = 0 /* 重复播放次数，设置 -1 为循环播放 */
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);
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// 暂停音乐
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void Pause(
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const Resource& res /* 音乐资源 */
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);
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// 继续播放音乐
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void Resume(
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const Resource& res /* 音乐资源 */
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);
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// 停止音乐
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void Stop(
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const Resource& res /* 音乐资源 */
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);
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// 获取音乐播放状态
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bool IsPlaying(
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const Resource& res /* 音乐资源 */
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);
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// 获取音量
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float GetVolume();
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// 设置音量
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void SetVolume(
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float volume /* 范围: 0.0 ~ 1.0 */
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);
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// 暂停所有音乐
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void PauseAll();
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// 继续播放所有音乐
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void ResumeAll();
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// 停止所有音乐
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void StopAll();
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// 清除缓存
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static void ClearCache();
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protected:
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E2D_DISABLE_COPY(Player);
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protected:
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float volume_;
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static std::map<size_t, Music*> musics_;
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};
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// 数据管理工具
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class Data
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{
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public:
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Data(
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const String& key, /* 键值 */
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const String& field = L"Defalut" /* 字段名称 */
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);
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// 该数据是否存在
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bool Exists() const;
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// 保存 int 类型的值
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bool SaveInt(
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int value
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);
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// 保存 float 类型的值
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bool SaveFloat(
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float value
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);
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// 保存 double 类型的值
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bool SaveDouble(
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double value
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);
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// 保存 bool 类型的值
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bool SaveBool(
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bool value
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);
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// 保存 String 类型的值
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bool SaveString(
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const String& value
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);
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// 获取 int 类型的值
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int GetInt() const;
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// 获取 float 类型的值
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float GetFloat() const;
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// 获取 double 类型的值
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double GetDouble() const;
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// 获取 bool 类型的值
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bool GetBool() const;
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// 获取 字符串 类型的值
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String GetString();
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protected:
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String key_;
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String field_;
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const String& data_path_;
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};
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// 文件
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class File
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{
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public:
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File();
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File(
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const String& file_name
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);
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virtual ~File();
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// 打开文件
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bool Open(
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const String& file_name
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);
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// 文件或文件夹是否存在
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bool Exists() const;
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// 是否是文件夹
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bool IsFolder() const;
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// 删除文件
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bool Delete();
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// 获取文件路径
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const String& GetPath() const;
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// 获取文件扩展名
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String GetExtension() const;
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// 释放资源到临时文件目录
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static File Extract(
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int resource_name, /* 资源名称 */
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const String& resource_type, /* 资源类型 */
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const String& dest_file_name /* 目标文件名 */
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);
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// 添加文件搜索路径
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static void AddSearchPath(
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const String& path
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);
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// 创建文件夹
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static bool CreateFolder(
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const String& dir_path /* 文件夹路径 */
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);
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// 弹出打开文件对话框
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static File ShowOpenDialog(
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const String& title = L"打开", /* 对话框标题 */
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const String& filter = L"" /* 筛选扩展名，例如 "*.jpg;*.jpeg" */
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);
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// 弹出保存文件对话框
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static File ShowSaveDialog(
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const String& title = L"保存", /* 对话框标题 */
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const String& def_file = L"", /* 默认保存的文件名 */
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const String& def_ext = L"" /* 默认追加的扩展名，例如 "txt" */
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);
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protected:
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DWORD attributes_;
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String file_path_;
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static std::list<String> search_paths_;
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};
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// 路径
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class Path
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{
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public:
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// 获取数据的默认保存路径
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static const String& GetDataPath();
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// 获取临时文件目录
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static const String& GetTemporaryPath();
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// 获取 LocalAppData 目录
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static const String& GetLocalAppDataPath();
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// 获取当前程序的运行路径
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static const String& GetExeFilePath();
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};
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} |