forked from KolibriOS/kolibrios
103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
// OGG vorbis for KolibriOS in native shared COFF library format.
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// https://github.com/nothings/stb/blob/master/stb_vorbis.c
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// Some functions to allow us building without any external libs
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#include <stddef.h>
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void* memset(void *base, int val, size_t len)
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{
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int i;
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for (i=0; i < len; ++i) ((char *) base)[i] = val;
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}
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int memcmp(const void *p1, const void *p2, size_t len)
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{
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unsigned char *q1 = (unsigned char *) p1;
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unsigned char *q2 = (unsigned char *) p2;
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int i;
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for (i=0; i < len; ++i)
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if (q1[i] < q2[i]) return -1;
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else if (q1[i] > q2[i]) return 1;
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return 0;
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}
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void* memcpy(void *dest, const void *src, size_t num)
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{
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int i;
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for (i=0; i < num; ++i)
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((char *)dest)[i] = ((char *) src)[i];
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}
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double powerd (double x, int y)
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{
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double temp;
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if (y == 0)
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return 1;
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temp = powerd (x, y / 2);
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if ((y % 2) == 0) {
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return temp * temp;
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} else {
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if (y > 0)
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return x * temp * temp;
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else
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return (temp * temp) / x;
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}
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}
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double ldexp(double Value, int Exponent)
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{
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return((Value * powerd(2.0, Exponent)));
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}
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#include "qsort.c"
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// For building with mingw compiler
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__attribute__((externally_visible)) void __chkstk_ms(){
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return;
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}
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# define assert(expr) ((void) (0))
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// Actual stb_vorbis related stuff starts here
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#define STB_VORBIS_NO_STDIO 1
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#define STB_VORBIS_NO_CRT 1
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//#define STB_VORBIS_NO_PULLDATA_API 1
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#include "stb_vorbis.c"
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// KolibriOS type EXPORTS header
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int __stdcall libInit(){
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return 1;
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}
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typedef struct{
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char *name;
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void *f;
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}export_t;
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char szLibInit[] ="lib_init";
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char szVersion[] ="version";
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char szPushDataOpen[] ="pushdata_open";
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char szPushDataDecode[] ="pushdata_decode";
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char szPushDataFlush[] ="pushdata_flush";
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//char szConvertSamplesShort[] = "convert_samples_short";
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char szConvertSamplesShortInterleaved[] = "convert_channels_short_interleaved";
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__attribute__((externally_visible)) export_t EXPORTS[] __asm__("EXPORTS") =
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{
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{ szLibInit, libInit },
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{ szVersion, (void*)0x00010001 },
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{ szPushDataOpen, stb_vorbis_open_pushdata },
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{ szPushDataDecode, stb_vorbis_decode_frame_pushdata },
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{ szPushDataFlush, stb_vorbis_flush_pushdata},
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//{ szConvertSamplesShort, convert_samples_short},
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{ szConvertSamplesShortInterleaved, convert_channels_short_interleaved},
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{ NULL, NULL },
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};
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// End of file
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