Kiritow
bc189b4951
分离各SDL类的包装代码. 事件分发处理全部转移至Lua Init层. C层只提供获取事件的方法. 这样有助于提高性能，以及今后Coroutine scheduler的添加.
112 lines
2.2 KiB
C++
112 lines
2.2 KiB
C++
#include "Music.h"
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#include "LuaCommon.h"
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#include "LuaHelper.h"
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#include <iostream>
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using namespace std;
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Mix_Chunk* Mix_LoadWAVEx(const char* filepath)
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{
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SDL_RWops* fileData = SDL_RWFromFile(filepath, "rb");
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if (!fileData)
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{
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std::cout << "Mix_LoadWAVEx() failed to call SDL_RWFromFile().\n\t\"" << SDL_GetError() << "\"" << std::endl;
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return NULL;
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}
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Mix_Chunk* chunk = Mix_LoadWAV_RW(fileData, 1);
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if (!chunk)
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{
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std::cout << "Mix_LoadWAVEx() failed to call Mix_LoadWAV_RW().\n\t\"" << SDL_GetError() << "\"" << std::endl;
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return NULL;
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}
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return chunk;
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}
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inline int Chunk::close(lua_State* L)
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{
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auto p = (Chunk*)luaL_checkudata(L, 1, "chunk");
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p->~Chunk();
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return 0;
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}
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int Chunk::create(lua_State* L)
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{
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cout << "In Chunk::create" << endl;
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const char* filepath = luaL_checkstring(L, 1);
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Mix_Chunk* c = Mix_LoadWAVEx(filepath);
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if (!c)
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{
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return LuaSDLError(L);
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}
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auto p = new (lua_newuserdata(L, sizeof(Chunk))) Chunk(c);
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if (luaL_newmetatable(L, "chunk"))
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{
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// GC
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lua_pushcfunction(L, close);
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lua_setfield(L, -2, "__gc");
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// Fields
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lua_newtable(L);
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settype("chunk");
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setfn(close, "close");
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lua_setfield(L, -2, "__index");
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}
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lua_setmetatable(L, -2);
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return 1;
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}
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inline int Chunk::setVolume(lua_State* L)
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{
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auto p = (Chunk*)luaL_checkudata(L, 1, "chunk");
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int v = luaL_checkinteger(L, 2);
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int old = Mix_VolumeChunk(p->chunk.get(), v);
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lua_pushinteger(L, old);
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return 1;
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}
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inline Chunk::Chunk(Mix_Chunk* c) : chunk(c, Mix_FreeChunk)
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{
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}
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inline Music::Music(Mix_Music* m) : music(m, Mix_FreeMusic)
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{
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}
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inline int Music::close(lua_State* L)
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{
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cout << "In Music::close" << endl;
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auto p = (Music*)luaL_checkudata(L, 1, "music");
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p->~Music();
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return 0;
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}
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int Music::create(lua_State* L)
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{
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cout << "In Music::create" << endl;
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const char* filepath = luaL_checkstring(L, 1);
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Mix_Music* m = Mix_LoadMUS(filepath);
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if (!m)
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{
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return LuaSDLError(L);
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}
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auto p = new (lua_newuserdata(L, sizeof(Music))) Music(m);
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if(luaL_newmetatable(L, "music"))
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{
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// GC
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lua_pushcfunction(L, close);
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lua_setfield(L, -2, "__gc");
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// Fields
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lua_newtable(L);
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settype("music");
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setfn(close, "close");
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lua_setfield(L, -2, "__index");
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}
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lua_setmetatable(L, -2);
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return 1;
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}
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