+++ /dev/null
-/* -*- tab-width: 8; c-basic-offset: 4 -*- */
-
-/*
- * MSACM32 library
- *
- * Copyright 2000 Eric Pouech
- * Copyright 2004 Robert Reif
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
- *
- * FIXME / TODO list
- * + get rid of hack for PCM_DriverProc (msacm32.dll shouldn't export
- * a DriverProc, but this would require implementing a generic
- * embedded driver handling scheme in msacm32.dll which isn't done yet
- */
-
-#include "wineacm.h"
-
-#include <assert.h>
-
-/***********************************************************************
- * PCM_drvOpen
- */
-static DWORD PCM_drvOpen(LPCSTR str, PACMDRVOPENDESCW adod)
-{
- TRACE("(%p, %p)\n", str, adod);
-
- return (adod == NULL) ||
- (adod->fccType == ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC &&
- adod->fccComp == ACMDRIVERDETAILS_FCCCOMP_UNDEFINED);
-}
-
-/***********************************************************************
- * PCM_drvClose
- */
-static DWORD PCM_drvClose(DWORD dwDevID)
-{
- TRACE("(%d)\n", dwDevID);
-
- return 1;
-}
-
-#define NUM_PCM_FORMATS (sizeof(PCM_Formats) / sizeof(PCM_Formats[0]))
-#define NUM_OF(a,b) ((a)/(b))
-
-/* flags for fdwDriver */
-#define PCM_RESAMPLE 1
-
-typedef void (*PCM_CONVERT_KEEP_RATE)(const unsigned char*, int, unsigned char*);
-
-typedef void (*PCM_CONVERT_CHANGE_RATE)(const DWORD, const unsigned char*, DWORD*, const DWORD, unsigned char*, DWORD*);
-
-/* data used while converting */
-typedef struct tagAcmPcmData {
- /* conversion routine, depending if rate conversion is required */
- union {
- PCM_CONVERT_KEEP_RATE cvtKeepRate;
- PCM_CONVERT_CHANGE_RATE cvtChangeRate;
- } cvt;
-} AcmPcmData;
-
-/* table to list all supported formats... those are the basic ones. this
- * also helps given a unique index to each of the supported formats
- */
-static const struct {
- int nChannels;
- int nBits;
- int rate;
-} PCM_Formats[] = {
- {1, 8, 8000}, {2, 8, 8000}, {1, 16, 8000}, {2, 16, 8000}, {1, 24, 8000}, {2, 24, 8000},
- {1, 8, 11025}, {2, 8, 11025}, {1, 16, 11025}, {2, 16, 11025}, {1, 24, 11025}, {2, 24, 11025},
- {1, 8, 22050}, {2, 8, 22050}, {1, 16, 22050}, {2, 16, 22050}, {1, 24, 22050}, {2, 24, 22050},
- {1, 8, 44100}, {2, 8, 44100}, {1, 16, 44100}, {2, 16, 44100}, {1, 24, 44100}, {2, 24, 44100},
- {1, 8, 48000}, {2, 8, 48000}, {1, 16, 48000}, {2, 16, 48000}, {1, 24, 48000}, {2, 24, 48000},
- {1, 8, 96000}, {2, 8, 96000}, {1, 16, 96000}, {2, 16, 96000}, {1, 24, 96000}, {2, 24, 96000},
-};
-
-/***********************************************************************
- * PCM_GetFormatIndex
- */
-static DWORD PCM_GetFormatIndex(LPWAVEFORMATEX wfx)
-{
- unsigned int i;
- TRACE("(%p)\n", wfx);
-
- for (i = 0; i < NUM_PCM_FORMATS; i++) {
- if (wfx->nChannels == PCM_Formats[i].nChannels &&
- wfx->nSamplesPerSec == PCM_Formats[i].rate &&
- wfx->wBitsPerSample == PCM_Formats[i].nBits)
- return i;
- }
- return 0xFFFFFFFF;
-}
-
-/* PCM Conversions:
- *
- * parameters:
- * + 8 bit unsigned vs 16 bit signed
- * + mono vs stereo (1 or 2 channels)
- * + sampling rate (8.0, 11.025, 22.05, 44.1 kHz are defined, but algo
- * shall work in all cases)
- *
- * mono => stereo: copy the same sample on Left & Right channels
- * stereo => mono: use the sum of Left & Right channels
- */
-
-/***********************************************************************
- * C816
- *
- * Converts a 8 bit sample to a 16 bit one
- */
-static inline short C816(unsigned char b)
-{
- return (b - 128) << 8;
-}
-
-/***********************************************************************
- * C168
- *
- * Converts a 16 bit sample to a 8 bit one (data loss !!)
- */
-static inline unsigned char C168(short s)
-{
- return HIBYTE(s) ^ (unsigned char)0x80;
-}
-
-/***********************************************************************
- * C248
- *
- * Converts a 24 bit sample to a 8 bit one (data loss !!)
- */
-static inline unsigned char C248(int s)
-{
- return HIBYTE(HIWORD(s)) ^ (unsigned char)0x80;
-}
-
-/***********************************************************************
- * C2416
- *
- * Converts a 24 bit sample to a 16 bit one (data loss !!)
- */
-static inline short C2416(int s)
-{
- return HIWORD(s);
-}
-
-/***********************************************************************
- * R16
- *
- * Read a 16 bit sample (correctly handles endianness)
- */
-static inline short R16(const unsigned char* src)
-{
- return (short)((unsigned short)src[0] | ((unsigned short)src[1] << 8));
-}
-
-/***********************************************************************
- * R24
- *
- * Read a 24 bit sample (correctly handles endianness)
- * Note, to support signed arithmetic, the values are shifted high in the int
- * and low 8 bytes are unused.
- */
-static inline int R24(const unsigned char* src)
-{
- return ((int)src[0] | (int)src[1] << 8 | (int)src[2] << 16) << 8;
-}
-
-/***********************************************************************
- * W16
- *
- * Write a 16 bit sample (correctly handles endianness)
- */
-static inline void W16(unsigned char* dst, short s)
-{
- dst[0] = LOBYTE(s);
- dst[1] = HIBYTE(s);
-}
-
-/***********************************************************************
- * W24
- *
- * Write a 24 bit sample (correctly handles endianness)
- */
-static inline void W24(unsigned char* dst, int s)
-{
- dst[0] = HIBYTE(LOWORD(s));
- dst[1] = LOBYTE(HIWORD(s));
- dst[2] = HIBYTE(HIWORD(s));
-}
-
-/***********************************************************************
- * M24
- *
- * Convert the (l,r) 24 bit stereo sample into a 24 bit mono
- * (takes the sum of the two values)
- */
-static inline int M24(int l, int r)
-{
- LONGLONG sum = l + r;
-
- /* clip sum to saturation */
- if (sum > 0x7fffff00)
- sum = 0x7fffff00;
- else if (sum < -0x7fffff00)
- sum = -0x7fffff00;
-
- return sum;
-}
-
-/***********************************************************************
- * M16
- *
- * Convert the (l,r) 16 bit stereo sample into a 16 bit mono
- * (takes the sum of the two values)
- */
-static inline short M16(short l, short r)
-{
- int sum = l + r;
-
- /* clip sum to saturation */
- if (sum > 32767)
- sum = 32767;
- else if (sum < -32768)
- sum = -32768;
-
- return sum;
-}
-
-/***********************************************************************
- * M8
- *
- * Convert the (l,r) 8 bit stereo sample into a 8 bit mono
- * (takes the sum of the two values)
- */
-static inline unsigned char M8(unsigned char a, unsigned char b)
-{
- int l = a - 128;
- int r = b - 128;
- int sum = (l + r) + 128;
-
- /* clip sum to saturation */
- if (sum > 0xff)
- sum = 0xff;
- else if (sum < 0)
- sum = 0;
-
- return sum;
-}
-
-/* the conversion routines without rate conversion are labelled cvt<X><Y><N><M>K
- * where :
- * <X> is the (M)ono/(S)tereo configuration of input channel
- * <Y> is the (M)ono/(S)tereo configuration of output channel
- * <N> is the number of bits of input channel (8 or 16)
- * <M> is the number of bits of output channel (8 or 16)
- *
- * in the parameters, ns is always the number of samples, so the size of input
- * buffer (resp output buffer) is ns * (<X> == 'Mono' ? 1:2) * (<N> == 8 ? 1:2)
- */
-
-static void cvtMM88K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
- memcpy(dst, src, ns);
-}
-
-static void cvtSS88K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
- memcpy(dst, src, ns * 2);
-}
-
-static void cvtMM1616K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
- memcpy(dst, src, ns * 2);
-}
-
-static void cvtSS1616K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
- memcpy(dst, src, ns * 4);
-}
-
-static void cvtMS88K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- *dst++ = *src;
- *dst++ = *src++;
- }
-}
-
-static void cvtMS816K(const unsigned char* src, int ns, unsigned char* dst)
-{
- short v;
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- v = C816(*src++);
- W16(dst, v); dst += 2;
- W16(dst, v); dst += 2;
- }
-}
-
-static void cvtMS168K(const unsigned char* src, int ns, unsigned char* dst)
-{
- unsigned char v;
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- v = C168(R16(src)); src += 2;
- *dst++ = v;
- *dst++ = v;
- }
-}
-
-static void cvtMS1616K(const unsigned char* src, int ns, unsigned char* dst)
-{
- short v;
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- v = R16(src); src += 2;
- W16(dst, v); dst += 2;
- W16(dst, v); dst += 2;
- }
-}
-
-static void cvtSM88K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- *dst++ = M8(src[0], src[1]);
- src += 2;
- }
-}
-
-static void cvtSM816K(const unsigned char* src, int ns, unsigned char* dst)
-{
- short v;
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- v = M16(C816(src[0]), C816(src[1]));
- src += 2;
- W16(dst, v); dst += 2;
- }
-}
-
-static void cvtSM168K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- *dst++ = C168(M16(R16(src), R16(src + 2)));
- src += 4;
- }
-}
-
-static void cvtSM1616K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- W16(dst, M16(R16(src),R16(src+2))); dst += 2;
- src += 4;
- }
-}
-
-static void cvtMM816K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- W16(dst, C816(*src++)); dst += 2;
- }
-}
-
-static void cvtSS816K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- W16(dst, C816(*src++)); dst += 2;
- W16(dst, C816(*src++)); dst += 2;
- }
-}
-
-static void cvtMM168K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- *dst++ = C168(R16(src)); src += 2;
- }
-}
-
-static void cvtSS168K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- *dst++ = C168(R16(src)); src += 2;
- *dst++ = C168(R16(src)); src += 2;
- }
-}
-
-static void cvtMS248K(const unsigned char* src, int ns, unsigned char* dst)
-{
- unsigned char v;
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- v = C248(R24(src)); src += 3;
- *dst++ = v;
- *dst++ = v;
- }
-}
-
-static void cvtSM248K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- *dst++ = C248(M24(R24(src), R24(src + 3)));
- src += 6;
- }
-}
-
-static void cvtMM248K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- *dst++ = C248(R24(src)); src += 3;
- }
-}
-
-static void cvtSS248K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- *dst++ = C248(R24(src)); src += 3;
- *dst++ = C248(R24(src)); src += 3;
- }
-}
-
-static void cvtMS2416K(const unsigned char* src, int ns, unsigned char* dst)
-{
- short v;
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- v = C2416(R24(src)); src += 3;
- W16(dst, v); dst += 2;
- W16(dst, v); dst += 2;
- }
-}
-
-static void cvtSM2416K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- W16(dst, C2416(M24(R24(src), R24(src + 3))));
- dst += 2;
- src += 6;
- }
-}
-
-static void cvtMM2416K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- W16(dst, C2416(R24(src))); dst += 2; src += 3;
- }
-}
-
-static void cvtSS2416K(const unsigned char* src, int ns, unsigned char* dst)
-{
- TRACE("(%p, %d, %p)\n", src, ns, dst);
-
- while (ns--) {
- W16(dst, C2416(R24(src))); dst += 2; src += 3;
- W16(dst, C2416(R24(src))); dst += 2; src += 3;
- }
-}
-
-
-static const PCM_CONVERT_KEEP_RATE PCM_ConvertKeepRate[] = {
- cvtSS88K, cvtSM88K, cvtMS88K, cvtMM88K,
- cvtSS816K, cvtSM816K, cvtMS816K, cvtMM816K,
- NULL, NULL, NULL, NULL, /* TODO: 8->24 */
- cvtSS168K, cvtSM168K, cvtMS168K, cvtMM168K,
- cvtSS1616K, cvtSM1616K, cvtMS1616K, cvtMM1616K,
- NULL, NULL, NULL, NULL, /* TODO: 16->24 */
- cvtSS248K, cvtSM248K, cvtMS248K, cvtMM248K,
- cvtSS2416K, cvtSM2416K, cvtMS2416K, cvtMM2416K,
- NULL, NULL, NULL, NULL, /* TODO: 24->24 */
-};
-
-/* the conversion routines with rate conversion are labelled cvt<X><Y><N><M>C
- * where :
- * <X> is the (M)ono/(S)tereo configuration of input channel
- * <Y> is the (M)ono/(S)tereo configuration of output channel
- * <N> is the number of bits of input channel (8 or 16)
- * <M> is the number of bits of output channel (8 or 16)
- *
- */
-
-static void cvtSS88C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- *dst++ = src[0];
- *dst++ = src[1];
- }
- src += 2;
- }
-}
-
-static void cvtSM88C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- *dst++ = M8(src[0], src[1]);
- }
- src += 2;
- }
-}
-
-static void cvtMS88C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- *dst++ = src[0];
- *dst++ = src[0];
- }
- src += 1;
- }
-}
-
-static void cvtMM88C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- *dst++ = src[0];
- }
- src += 1;
- }
-}
-
-static void cvtSS816C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W16(dst, C816(src[0])); dst += 2;
- W16(dst, C816(src[1])); dst += 2;
- }
- src += 2;
- }
-}
-
-static void cvtSM816C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W16(dst, M16(C816(src[0]), C816(src[1]))); dst += 2;
- }
- src += 2;
- }
-}
-
-static void cvtMS816C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W16(dst, C816(src[0])); dst += 2;
- W16(dst, C816(src[0])); dst += 2;
- }
- src += 1;
- }
-}
-
-static void cvtMM816C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W16(dst, C816(src[0])); dst += 2;
- }
- src += 1;
- }
-}
-
-static void cvtSS168C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- *dst++ = C168(R16(src));
- *dst++ = C168(R16(src + 2));
- }
- src += 4;
- }
-}
-
-static void cvtSM168C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- *dst++ = C168(M16(R16(src), R16(src + 2)));
- }
- src += 4;
- }
-}
-
-static void cvtMS168C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- *dst++ = C168(R16(src));
- *dst++ = C168(R16(src));
- }
- src += 2;
- }
-}
-
-static void cvtMM168C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- *dst++ = C168(R16(src));
- }
- src += 2;
- }
-}
-
-static void cvtSS1616C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W16(dst, R16(src)); dst += 2;
- W16(dst, R16(src + 2)); dst += 2;
- }
- src += 4;
- }
-}
-
-static void cvtSM1616C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W16(dst, M16(R16(src), R16(src + 2))); dst += 2;
- }
- src += 4;
- }
-}
-
-static void cvtMS1616C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W16(dst, R16(src)); dst += 2;
- W16(dst, R16(src)); dst += 2;
- }
- src += 2;
- }
-}
-
-static void cvtMM1616C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W16(dst, R16(src)); dst += 2;
- }
- src += 2;
- }
-}
-
-static void cvtSS2424C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W24(dst, R24(src)); dst += 3;
- W24(dst, R24(src + 3)); dst += 3;
- }
- src += 6;
- }
-}
-
-static void cvtSM2424C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W24(dst, M24(R24(src), R24(src + 3))); dst += 3;
- }
- src += 6;
- }
-}
-
-static void cvtMS2424C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W24(dst, R24(src)); dst += 3;
- W24(dst, R24(src)); dst += 3;
- }
- src += 3;
- }
-}
-
-static void cvtMM2424C(const DWORD srcRate, const unsigned char *src, DWORD *nsrc,
- const DWORD dstRate, unsigned char *dst, DWORD *ndst)
-{
- DWORD error = srcRate / 2;
- DWORD maxSrc = *nsrc, maxDst = *ndst;
- *ndst = 0;
- for (*nsrc = 0; *nsrc < maxSrc; (*nsrc)++) {
- error += dstRate;
- while (error > srcRate) {
- if (*ndst == maxDst)
- return;
- (*ndst)++;
- error -= srcRate;
-
- W24(dst, R24(src)); dst += 3;
- }
- src += 3;
- }
-}
-
-static const PCM_CONVERT_CHANGE_RATE PCM_ConvertChangeRate[] = {
- cvtSS88C, cvtSM88C, cvtMS88C, cvtMM88C,
- cvtSS816C, cvtSM816C, cvtMS816C, cvtMM816C,
- NULL, NULL, NULL, NULL, /* TODO: 8->24 */
- cvtSS168C, cvtSM168C, cvtMS168C, cvtMM168C,
- cvtSS1616C, cvtSM1616C, cvtMS1616C, cvtMM1616C,
- NULL, NULL, NULL, NULL, /* TODO: 16->24 */
- NULL, NULL, NULL, NULL, /* TODO: 24->8 */
- NULL, NULL, NULL, NULL, /* TODO: 24->16 */
- cvtSS2424C, cvtSM2424C, cvtMS2424C, cvtMM2424C,
-};
-
-/***********************************************************************
- * PCM_DriverDetails
- *
- */
-static LRESULT PCM_DriverDetails(PACMDRIVERDETAILSW add)
-{
- TRACE("(%p)\n", add);
-
- add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
- add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
- add->wMid = MM_MICROSOFT;
- add->wPid = MM_MSFT_ACM_PCM;
- add->vdwACM = 0x01000000;
- add->vdwDriver = 0x01000000;
- add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CONVERTER;
- add->cFormatTags = 1;
- add->cFilterTags = 0;
- add->hicon = NULL;
- MultiByteToWideChar( CP_ACP, 0, "MS-PCM", -1,
- add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
- MultiByteToWideChar( CP_ACP, 0, "Wine PCM converter", -1,
- add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) );
- MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team...", -1,
- add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) );
- MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
- add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) );
- add->szFeatures[0] = 0;
-
- return MMSYSERR_NOERROR;
-}
-
-/***********************************************************************
- * PCM_FormatTagDetails
- *
- */
-static LRESULT PCM_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
-{
- TRACE("(%p, %08x)\n", aftd, dwQuery);
-
- switch (dwQuery) {
- case ACM_FORMATTAGDETAILSF_INDEX:
- if (aftd->dwFormatTagIndex != 0) {
- WARN("not possible\n");
- return ACMERR_NOTPOSSIBLE;
- }
- break;
- case ACM_FORMATTAGDETAILSF_FORMATTAG:
- if (aftd->dwFormatTag != WAVE_FORMAT_PCM) {
- WARN("not possible\n");
- return ACMERR_NOTPOSSIBLE;
- }
- break;
- case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
- if (aftd->dwFormatTag != WAVE_FORMAT_UNKNOWN &&
- aftd->dwFormatTag != WAVE_FORMAT_PCM) {
- WARN("not possible\n");
- return ACMERR_NOTPOSSIBLE;
- }
- break;
- default:
- WARN("Unsupported query %08x\n", dwQuery);
- return MMSYSERR_NOTSUPPORTED;
- }
-
- aftd->dwFormatTagIndex = 0;
- aftd->dwFormatTag = WAVE_FORMAT_PCM;
- aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
- aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CONVERTER;
- aftd->cStandardFormats = NUM_PCM_FORMATS;
- aftd->szFormatTag[0] = 0;
-
- return MMSYSERR_NOERROR;
-}
-
-/***********************************************************************
- * PCM_FormatDetails
- *
- */
-static LRESULT PCM_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
-{
- TRACE("(%p, %08x)\n", afd, dwQuery);
-
- switch (dwQuery) {
- case ACM_FORMATDETAILSF_FORMAT:
- if (PCM_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) {
- WARN("not possible\n");
- return ACMERR_NOTPOSSIBLE;
- }
- break;
- case ACM_FORMATDETAILSF_INDEX:
- assert(afd->dwFormatIndex < NUM_PCM_FORMATS);
- afd->pwfx->wFormatTag = WAVE_FORMAT_PCM;
- afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels;
- afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate;
- afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits;
- /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not
- * accessible afd->pwfx->cbSize = 0;
- */
- afd->pwfx->nBlockAlign =
- (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8;
- afd->pwfx->nAvgBytesPerSec =
- afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
- break;
- default:
- WARN("Unsupported query %08x\n", dwQuery);
- return MMSYSERR_NOTSUPPORTED;
- }
-
- afd->dwFormatTag = WAVE_FORMAT_PCM;
- afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CONVERTER;
- afd->szFormat[0] = 0; /* let MSACM format this for us... */
- afd->cbwfx = sizeof(PCMWAVEFORMAT);
-
- return MMSYSERR_NOERROR;
-}
-
-/***********************************************************************
- * PCM_FormatSuggest
- *
- */
-static LRESULT PCM_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
-{
- TRACE("(%p)\n", adfs);
-
- /* some tests ... */
- if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
- adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
- PCM_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) {
- WARN("not possible\n");
- return ACMERR_NOTPOSSIBLE;
- }
-
- /* is no suggestion for destination, then copy source value */
- if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS)) {
- adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
- }
- if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC)) {
- adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
- }
- if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE)) {
- adfs->pwfxDst->wBitsPerSample = adfs->pwfxSrc->wBitsPerSample;
- }
- if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG)) {
- if (adfs->pwfxSrc->wFormatTag != WAVE_FORMAT_PCM) {
- WARN("source format 0x%x not supported\n", adfs->pwfxSrc->wFormatTag);
- return ACMERR_NOTPOSSIBLE;
- }
- adfs->pwfxDst->wFormatTag = adfs->pwfxSrc->wFormatTag;
- } else {
- if (adfs->pwfxDst->wFormatTag != WAVE_FORMAT_PCM) {
- WARN("destination format 0x%x not supported\n", adfs->pwfxDst->wFormatTag);
- return ACMERR_NOTPOSSIBLE;
- }
- }
- /* check if result is ok */
- if (PCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) {
- WARN("not possible\n");
- return ACMERR_NOTPOSSIBLE;
- }
-
- /* recompute other values */
- adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
- adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
-
- return MMSYSERR_NOERROR;
-}
-
-/***********************************************************************
- * PCM_StreamOpen
- *
- */
-static LRESULT PCM_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
-{
- AcmPcmData* apd;
- int idx;
- DWORD flags;
-
- TRACE("(%p)\n", adsi);
-
- assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
-
- switch(adsi->pwfxSrc->wBitsPerSample){
- case 8:
- idx = 0;
- break;
- case 16:
- idx = 12;
- break;
- case 24:
- if (adsi->pwfxSrc->nBlockAlign != 3 * adsi->pwfxSrc->nChannels) {
- FIXME("Source: 24-bit samples must be packed\n");
- return MMSYSERR_NOTSUPPORTED;
- }
- idx = 24;
- break;
- default:
- FIXME("Unsupported source bit depth: %u\n", adsi->pwfxSrc->wBitsPerSample);
- return MMSYSERR_NOTSUPPORTED;
- }
-
- switch(adsi->pwfxDst->wBitsPerSample){
- case 8:
- break;
- case 16:
- idx += 4;
- break;
- case 24:
- if (adsi->pwfxDst->nBlockAlign != 3 * adsi->pwfxDst->nChannels) {
- FIXME("Destination: 24-bit samples must be packed\n");
- return MMSYSERR_NOTSUPPORTED;
- }
- idx += 8;
- break;
- default:
- FIXME("Unsupported destination bit depth: %u\n", adsi->pwfxDst->wBitsPerSample);
- return MMSYSERR_NOTSUPPORTED;
- }
-
- if (adsi->pwfxSrc->nChannels == 1) idx += 2;
-
- if (adsi->pwfxDst->nChannels == 1) idx += 1;
-
- apd = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmPcmData));
- if (!apd)
- return MMSYSERR_NOMEM;
-
- if (adsi->pwfxSrc->nSamplesPerSec == adsi->pwfxDst->nSamplesPerSec) {
- flags = 0;
- apd->cvt.cvtKeepRate = PCM_ConvertKeepRate[idx];
- } else {
- flags = PCM_RESAMPLE;
- apd->cvt.cvtChangeRate = PCM_ConvertChangeRate[idx];
- }
-
- if(!apd->cvt.cvtChangeRate && !apd->cvt.cvtKeepRate){
- FIXME("Unimplemented conversion from %u -> %u bps\n",
- adsi->pwfxSrc->wBitsPerSample,
- adsi->pwfxDst->wBitsPerSample);
- HeapFree(GetProcessHeap(), 0, apd);
- return MMSYSERR_NOTSUPPORTED;
- }
-
- adsi->dwDriver = (DWORD_PTR)apd;
- adsi->fdwDriver = flags;
-
- return MMSYSERR_NOERROR;
-}
-
-/***********************************************************************
- * PCM_StreamClose
- *
- */
-static LRESULT PCM_StreamClose(PACMDRVSTREAMINSTANCE adsi)
-{
- TRACE("(%p)\n", adsi);
-
- HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
- return MMSYSERR_NOERROR;
-}
-
-/***********************************************************************
- * PCM_round
- *
- */
-static inline DWORD PCM_round(DWORD a, DWORD b, DWORD c)
-{
- assert(c);
- /* to be sure, always return an entire number of c... */
- return ((double)a * (double)b + (double)c - 1) / (double)c;
-}
-
-/***********************************************************************
- * PCM_StreamSize
- *
- */
-static LRESULT PCM_StreamSize(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMSIZE adss)
-{
- DWORD srcMask = ~(adsi->pwfxSrc->nBlockAlign - 1);
- DWORD dstMask = ~(adsi->pwfxDst->nBlockAlign - 1);
-
- TRACE("(%p, %p)\n", adsi, adss);
-
- switch (adss->fdwSize) {
- case ACM_STREAMSIZEF_DESTINATION:
- /* cbDstLength => cbSrcLength */
- adss->cbSrcLength = PCM_round(adss->cbDstLength & dstMask,
- adsi->pwfxSrc->nAvgBytesPerSec,
- adsi->pwfxDst->nAvgBytesPerSec) & srcMask;
- break;
- case ACM_STREAMSIZEF_SOURCE:
- /* cbSrcLength => cbDstLength */
- adss->cbDstLength = PCM_round(adss->cbSrcLength & srcMask,
- adsi->pwfxDst->nAvgBytesPerSec,
- adsi->pwfxSrc->nAvgBytesPerSec) & dstMask;
- break;
- default:
- WARN("Unsupported query %08x\n", adss->fdwSize);
- return MMSYSERR_NOTSUPPORTED;
- }
- return MMSYSERR_NOERROR;
-}
-
-/***********************************************************************
- * PCM_StreamConvert
- *
- */
-static LRESULT PCM_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
-{
- AcmPcmData* apd = (AcmPcmData*)adsi->dwDriver;
- DWORD nsrc = NUM_OF(adsh->cbSrcLength, adsi->pwfxSrc->nBlockAlign);
- DWORD ndst = NUM_OF(adsh->cbDstLength, adsi->pwfxDst->nBlockAlign);
-
- TRACE("(%p, %p)\n", adsi, adsh);
-
- TRACE("nsrc=%d,adsh->cbSrcLength=%d\n", nsrc, adsh->cbSrcLength);
- TRACE("ndst=%d,adsh->cbDstLength=%d\n", ndst, adsh->cbDstLength);
- TRACE("src [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%u, nAvgBytesPerSec=%u, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
- adsi->pwfxSrc->wFormatTag, adsi->pwfxSrc->nChannels, adsi->pwfxSrc->nSamplesPerSec, adsi->pwfxSrc->nAvgBytesPerSec,
- adsi->pwfxSrc->nBlockAlign, adsi->pwfxSrc->wBitsPerSample, adsi->pwfxSrc->cbSize);
- TRACE("dst [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%u, nAvgBytesPerSec=%u, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
- adsi->pwfxDst->wFormatTag, adsi->pwfxDst->nChannels, adsi->pwfxDst->nSamplesPerSec, adsi->pwfxDst->nAvgBytesPerSec,
- adsi->pwfxDst->nBlockAlign, adsi->pwfxDst->wBitsPerSample, adsi->pwfxDst->cbSize);
-
- if (adsh->fdwConvert &
- ~(ACM_STREAMCONVERTF_BLOCKALIGN|
- ACM_STREAMCONVERTF_END|
- ACM_STREAMCONVERTF_START)) {
- FIXME("Unsupported fdwConvert (%08x), ignoring it\n", adsh->fdwConvert);
- }
- /* ACM_STREAMCONVERTF_BLOCKALIGN
- * currently all conversions are block aligned, so do nothing for this flag
- * ACM_STREAMCONVERTF_END
- * no pending data, so do nothing for this flag
- */
- if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START) &&
- (adsi->fdwDriver & PCM_RESAMPLE)) {
- }
-
- /* do the job */
- if (adsi->fdwDriver & PCM_RESAMPLE) {
- apd->cvt.cvtChangeRate(adsi->pwfxSrc->nSamplesPerSec, adsh->pbSrc, &nsrc,
- adsi->pwfxDst->nSamplesPerSec, adsh->pbDst, &ndst);
- } else {
- if (nsrc < ndst) ndst = nsrc; else nsrc = ndst;
-
- /* nsrc is now equal to ndst */
- apd->cvt.cvtKeepRate(adsh->pbSrc, nsrc, adsh->pbDst);
- }
-
- adsh->cbSrcLengthUsed = nsrc * adsi->pwfxSrc->nBlockAlign;
- adsh->cbDstLengthUsed = ndst * adsi->pwfxDst->nBlockAlign;
-
- return MMSYSERR_NOERROR;
-}
-
-/**************************************************************************
- * DriverProc (MSACM32.@)
- */
-LRESULT CALLBACK PCM_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
- LPARAM dwParam1, LPARAM dwParam2)
-{
- TRACE("(%08lx %p %u %08lx %08lx);\n",
- dwDevID, hDriv, wMsg, dwParam1, dwParam2);
-
- switch (wMsg) {
- case DRV_LOAD: return 1;
- case DRV_FREE: return 1;
- case DRV_OPEN: return PCM_drvOpen((LPSTR)dwParam1, (PACMDRVOPENDESCW)dwParam2);
- case DRV_CLOSE: return PCM_drvClose(dwDevID);
- case DRV_ENABLE: return 1;
- case DRV_DISABLE: return 1;
- case DRV_QUERYCONFIGURE: return 1;
- case DRV_CONFIGURE: MessageBoxA(0, "MSACM PCM filter !", "Wine Driver", MB_OK); return 1;
- case DRV_INSTALL: return DRVCNF_RESTART;
- case DRV_REMOVE: return DRVCNF_RESTART;
-
- case ACMDM_DRIVER_NOTIFY:
- /* no caching from other ACM drivers is done so far */
- return MMSYSERR_NOERROR;
-
- case ACMDM_DRIVER_DETAILS:
- return PCM_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
-
- case ACMDM_FORMATTAG_DETAILS:
- return PCM_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
-
- case ACMDM_FORMAT_DETAILS:
- return PCM_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
-
- case ACMDM_FORMAT_SUGGEST:
- return PCM_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
-
- case ACMDM_STREAM_OPEN:
- return PCM_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
-
- case ACMDM_STREAM_CLOSE:
- return PCM_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
-
- case ACMDM_STREAM_SIZE:
- return PCM_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
-
- case ACMDM_STREAM_CONVERT:
- return PCM_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
-
- case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
- case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
- /* this converter is not a hardware driver */
- case ACMDM_FILTERTAG_DETAILS:
- case ACMDM_FILTER_DETAILS:
- /* this converter is not a filter */
- case ACMDM_STREAM_RESET:
- /* only needed for asynchronous driver... we aren't, so just say it */
- case ACMDM_STREAM_PREPARE:
- case ACMDM_STREAM_UNPREPARE:
- /* nothing special to do here... so don't do anything */
- return MMSYSERR_NOTSUPPORTED;
-
- default:
- return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
- }
-}