mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 18:05:52 +01:00
f6417c5430
There is not no real about having small-ish buffers, simplifies buffer tuning, and avoids having gigantic buffers on bad reads.
103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
#include "meta.h"
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#include "../util.h"
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//#include <windows.h>
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//#include <tchar.h>
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/* WMUS - Arbitrary extension chosen for The Warriors (PS2) */
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VGMSTREAM * init_vgmstream_ps2_wmus(STREAMFILE *streamFile)
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{
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VGMSTREAM * vgmstream = NULL;
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char filename[PATH_LIMIT];
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int loop_flag = 1;
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int channel_count;
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off_t start_offset;
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int i;
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int blockCount;
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int shortBlockSize;
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int lastBlockLocation;
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char filenameWHED[PATH_LIMIT];
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STREAMFILE * streamFileWHED = NULL;
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//_TCHAR szBuffer[100];
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/* check extension, case insensitive */
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streamFile->get_name(streamFile,filename,sizeof(filename));
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if (strcasecmp("wmus",filename_extension(filename)))
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{
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goto fail;
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}
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/* check for .WHED file */
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strcpy(filenameWHED, filename);
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strcpy(filenameWHED + strlen(filenameWHED) - 4, "WHED");
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streamFileWHED = streamFile->open(streamFile, filenameWHED, STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!streamFileWHED)
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{
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goto fail;
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}
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/* check loopand channel */
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loop_flag = 1;
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channel_count = read_32bitLE(0x14, streamFileWHED);
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count, loop_flag);
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if (!vgmstream)
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{
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goto fail;
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}
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/* fill in the vital statistics */
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vgmstream->channels = channel_count;
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vgmstream->sample_rate = read_32bitLE(0x04, streamFileWHED);
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vgmstream->coding_type = coding_PSX;
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vgmstream->interleave_block_size = read_32bitLE(0x18, streamFileWHED);
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blockCount = read_32bitLE(0x1C, streamFileWHED) * channel_count;
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shortBlockSize = read_32bitLE(0x20, streamFileWHED);
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vgmstream->num_samples = (vgmstream->interleave_block_size * blockCount) / 16 / channel_count * 28;
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vgmstream->loop_start_sample = 0;
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lastBlockLocation = (vgmstream->interleave_block_size * blockCount) - (vgmstream->interleave_block_size - shortBlockSize);
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vgmstream->loop_end_sample = lastBlockLocation / 16 / channel_count * 28;
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//_stprintf(szBuffer, _T("%x"), lastBlockLocation);
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//MessageBox(NULL, szBuffer, _T("Foo"), MB_OK);
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vgmstream->layout_type = layout_interleave;
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vgmstream->meta_type = meta_PS2_WMUS;
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start_offset = 0;
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/* open the file for reading by each channel */
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{
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for (i=0;i<channel_count;i++) {
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vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!vgmstream->ch[i].streamfile) goto fail;
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vgmstream->ch[i].channel_start_offset=
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vgmstream->ch[i].offset=
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(off_t)(start_offset+vgmstream->interleave_block_size*i);
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}
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}
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return vgmstream;
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/* clean up anything we may have opened */
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fail:
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if (streamFileWHED) close_streamfile(streamFileWHED);
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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