janwas
22e4d2fd98
config: add 2 parameters to allow disabling s3tc/auto mipmap gen wpthread: add support for named semaphores (required for macosx compat) openal, ogghack: remove direct use of __APPLE__ macro (replace with OS_MACOSX) GraphicsSetupHandlers.cpp: fix incorrect usage of OS_ macros (they're always defined, so the test should be if their value is != 0) This was SVN commit r5316.
181 lines
3.1 KiB
C++
181 lines
3.1 KiB
C++
#include "precompiled.h"
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#include <string>
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#include <iostream>
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#include <deque>
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#include <algorithm>
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#include <cassert>
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#if OS_MACOSX
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#include <OpenAL/al.h>
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#else
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#include <AL/al.h>
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#endif
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#include <vorbis/vorbisfile.h>
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#include "ogghack.h" // HACK: must be included after al.h (bad interface)
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#include "lib/sysdep/cpu.h"
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#if MSC_VERSION
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# ifdef NDEBUG
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# pragma comment(lib, "vorbisfile.lib")
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# else
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# pragma comment(lib, "vorbisfile_d.lib")
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# endif
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#endif
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#define BUFFER_SIZE (4096 * 4)
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struct Buf
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{
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void* p;
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size_t size;
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size_t left;
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size_t pos;
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Buf(void* _p, size_t _size)
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{
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p = _p;
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size = _size;
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left = _size;
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pos = 0;
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}
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};
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typedef std::deque<Buf> IncomingBufs;
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///////////////////////////////////////////////////////////////////////////////
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//
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// OGG CALLBACKS
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//
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///////////////////////////////////////////////////////////////////////////////
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size_t read_func(void* ptr, size_t elements, size_t el_size, void* datasource)
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{
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IncomingBufs* incoming_bufs = (IncomingBufs*)datasource;
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size_t size = elements*el_size;
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size_t total_read = 0;
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while(!incoming_bufs->empty())
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{
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Buf& b = incoming_bufs->front();
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size_t copy_size = std::min(b.left, size);
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cpu_memcpy(ptr, (char*)b.p+b.pos, copy_size);
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total_read += copy_size;
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b.pos += copy_size;
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b.left -= copy_size;
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if(b.left > 0)
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break;
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free(b.p);
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incoming_bufs->pop_front();
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}
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return total_read;
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}
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int seek_func(void* UNUSED(datasource), ogg_int64_t UNUSED(offset), int UNUSED(whence))
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{
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return -1; // libvorbisfile: indicate "not implemented"
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}
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int close_func(void* UNUSED(datasource))
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{
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return 0;
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}
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struct Ogg
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{
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OggVorbis_File oggStream;
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vorbis_info* vorbisInfo;
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vorbis_comment* vorbisComment;
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IncomingBufs incoming_bufs;
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};
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void ogg_give_raw(void* _o, void* p, size_t size)
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{
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Ogg* o = (Ogg*)_o;
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IncomingBufs* incoming_bufs = &o->incoming_bufs;
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void* copy = malloc(size);
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cpu_memcpy(copy, p, size);
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incoming_bufs->push_back(Buf(copy, size));
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}
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void* ogg_create()
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{
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return new Ogg;
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}
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void ogg_open(void* _o, ALenum& fmt, ALsizei& freq)
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{
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Ogg* o = (Ogg*)_o;
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ov_callbacks cbs = { read_func, seek_func, close_func, 0 };
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void* datasource = &o->incoming_bufs;
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if(ov_open_callbacks(datasource, &o->oggStream, NULL, 0, cbs) < 0)
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{
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debug_warn("ov_open failed");
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}
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o->vorbisInfo = ov_info(&o->oggStream, -1);
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o->vorbisComment = ov_comment(&o->oggStream, -1);
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if(o->vorbisInfo->channels == 1)
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fmt = AL_FORMAT_MONO16;
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else
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fmt = AL_FORMAT_STEREO16;
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freq = o->vorbisInfo->rate;
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}
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void ogg_release(void* _o)
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{
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Ogg* o = (Ogg*)_o;
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ov_clear(&o->oggStream);
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delete o;
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}
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size_t ogg_read(void* _o, void* buf, size_t max_size)
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{
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Ogg* o = (Ogg*)_o;
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size_t bytes_written = 0;
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while(bytes_written < max_size)
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{
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int section; // unused
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char* pos = (char*)buf + bytes_written;
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size_t left_in_buf = max_size - bytes_written;
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long result = ov_read(&o->oggStream, pos, (int)left_in_buf , 0,2,1, §ion);
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if(result > 0)
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bytes_written += result;
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else if(result < 0)
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debug_warn("ogg read error");
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// clean break - end of data
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else
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break;
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}
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return bytes_written;
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}
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