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1007 lines
27 KiB
C
1007 lines
27 KiB
C
/* -*- tab-width: 8; c-basic-offset: 4 -*- */
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/*
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* MSACM32 library
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*
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* Copyright 2000 Eric Pouech
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*
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* FIXME / TODO list
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* + most of the computation should be done in fixed point arithmetic
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* instead of floating point (16 bits for integral part, and 16 bits
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* for fractional part for example)
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* + implement PCM_FormatSuggest function
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* + get rid of hack for PCM_DriverProc (msacm32.dll shouldn't export
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* a DriverProc, but this would require implementing a generic
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* embedded driver handling scheme in msacm32.dll which isn't done yet
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*/
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#include <assert.h>
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#include "wine/winestring.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "msacm.h"
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#include "msacmdrv.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(msacm);
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/***********************************************************************
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* PCM_drvOpen
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*/
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static DWORD PCM_drvOpen(LPCSTR str)
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{
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return 1;
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}
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/***********************************************************************
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* PCM_drvClose
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*/
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static DWORD PCM_drvClose(DWORD dwDevID)
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{
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return 1;
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}
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#define NUM_PCM_FORMATS (sizeof(PCM_Formats) / sizeof(PCM_Formats[0]))
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#define NUM_OF(a,b) (((a)+(b)-1)/(b))
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/* flags for fdwDriver */
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#define PCM_RESAMPLE 1
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/* data used while converting */
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typedef struct tagAcmPcmData {
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/* conversion routine, depending if rate conversion is required */
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union {
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void (*cvtKeepRate)(const unsigned char*, int, unsigned char*);
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void (*cvtChangeRate)(struct tagAcmPcmData*, const unsigned char*,
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LPDWORD, unsigned char*, LPDWORD);
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} cvt;
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/* the following fields are used only with rate conversion) */
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DWORD srcPos; /* position in source stream */
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double dstPos; /* position in destination stream */
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double dstIncr; /* value to increment dst stream when src stream
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is incremented by 1 */
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/* last source stream value read */
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union {
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unsigned char b; /* 8 bit value */
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short s; /* 16 bit value */
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} last[2]; /* two channels max (stereo) */
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} AcmPcmData;
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/* table to list all supported formats... those are the basic ones. this
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* also helps given a unique index to each of the supported formats
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*/
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static struct {
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int nChannels;
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int nBits;
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int rate;
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} PCM_Formats[] = {
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{1, 8, 8000}, {2, 8, 8000}, {1, 16, 8000}, {2, 16, 8000},
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{1, 8, 11025}, {2, 8, 11025}, {1, 16, 11025}, {2, 16, 11025},
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{1, 8, 22050}, {2, 8, 22050}, {1, 16, 22050}, {2, 16, 22050},
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{1, 8, 44100}, {2, 8, 44100}, {1, 16, 44100}, {2, 16, 44100},
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};
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/***********************************************************************
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* PCM_GetFormatIndex
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*/
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static DWORD PCM_GetFormatIndex(LPWAVEFORMATEX wfx)
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{
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int i;
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for (i = 0; i < NUM_PCM_FORMATS; i++) {
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if (wfx->nChannels == PCM_Formats[i].nChannels &&
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wfx->nSamplesPerSec == PCM_Formats[i].rate &&
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wfx->wBitsPerSample == PCM_Formats[i].nBits)
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return i;
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}
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return 0xFFFFFFFF;
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}
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/* PCM Conversions:
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*
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* parameters:
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* + 8 bit unsigned vs 16 bit signed
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* + mono vs stereo (1 or 2 channels)
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* + sampling rate (8.0, 11.025, 22.05, 44.1 kHz are defined, but algo shall work
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* in all cases)
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*
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* mono => stereo: copy the same sample on Left & Right channels
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* stereo =) mono: use the average value of samples from Left & Right channels
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* resampling; we lookup for each destination sample the two source adjacent samples
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* were src <= dst < src+1 (dst is increased by a fractional value which is
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* equivalent to the increment by one on src); then we use a linear
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* interpolation between src and src+1
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*/
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/***********************************************************************
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* C816
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*
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* Converts a 8 bit sample to a 16 bit one
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*/
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static inline short C816(unsigned char b)
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{
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return (short)(b ^ 0x80) * 256;
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}
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/***********************************************************************
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* C168
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*
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* Converts a 16 bit sample to a 8 bit one (data loss !!)
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*/
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static inline unsigned char C168(short s)
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{
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return HIBYTE(s) ^ (unsigned char)0x80;
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}
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/***********************************************************************
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* R16
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*
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* Read a 16 bit sample (correctly handles endianess)
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*/
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static inline short R16(const unsigned char* src)
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{
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return (short)((unsigned short)src[0] | ((unsigned short)src[1] << 8));
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}
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/***********************************************************************
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* W16
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*
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* Write a 16 bit sample (correctly handles endianess)
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*/
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static inline void W16(unsigned char* dst, short s)
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{
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dst[0] = LOBYTE(s);
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dst[1] = HIBYTE(s);
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}
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/***********************************************************************
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* M16
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*
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* Convert the (l,r) 16 bit stereo sample into a 16 bit mono
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* (takes the mid-point of the two values)
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*/
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static inline short M16(short l, short r)
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{
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return (l + r) / 2;
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}
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/***********************************************************************
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* M8
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*
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* Convert the (l,r) 8 bit stereo sample into a 8 bit mono
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* (takes the mid-point of the two values)
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*/
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static inline unsigned char M8(unsigned char a, unsigned char b)
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{
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return (unsigned char)((a + b) / 2);
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}
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/* the conversion routines without rate conversion are labelled cvt<X><Y><N><M>K
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* where :
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* <X> is the (M)ono/(S)tereo configuration of input channel
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* <Y> is the (M)ono/(S)tereo configuration of output channel
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* <N> is the number of bits of input channel (8 or 16)
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* <M> is the number of bits of output channel (8 or 16)
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*
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* in the parameters, ns is always the number of samples, so the size of input
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* buffer (resp output buffer) is ns * (<X> == 'Mono' ? 1:2) * (<N> == 8 ? 1:2)
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*/
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static void cvtMM88K(const unsigned char* src, int ns, unsigned char* dst)
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{
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memcpy(dst, src, ns);
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}
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static void cvtSS88K(const unsigned char* src, int ns, unsigned char* dst)
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{
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memcpy(dst, src, ns * 2);
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}
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static void cvtMM1616K(const unsigned char* src, int ns, unsigned char* dst)
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{
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memcpy(dst, src, ns * 2);
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}
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static void cvtSS1616K(const unsigned char* src, int ns, unsigned char* dst)
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{
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memcpy(dst, src, ns * 4);
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}
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static void cvtMS88K(const unsigned char* src, int ns, unsigned char* dst)
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{
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while (ns--) {
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*dst++ = *src;
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*dst++ = *src++;
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}
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}
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static void cvtMS816K(const unsigned char* src, int ns, unsigned char* dst)
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{
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short v;
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while (ns--) {
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v = C816(*src++);
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W16(dst, v); dst += 2;
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W16(dst, v); dst += 2;
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}
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}
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static void cvtMS168K(const unsigned char* src, int ns, unsigned char* dst)
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{
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unsigned char v;
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while (ns--) {
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v = C168(R16(src)); src += 2;
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*dst++ = v;
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*dst++ = v;
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}
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}
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static void cvtMS1616K(const unsigned char* src, int ns, unsigned char* dst)
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{
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short v;
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while (ns--) {
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v = R16(src); src += 2;
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W16(dst, v); dst += 2;
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W16(dst, v); dst += 2;
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}
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}
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static void cvtSM88K(const unsigned char* src, int ns, unsigned char* dst)
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{
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while (ns--) {
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*dst++ = M8(src[0], src[1]);
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src += 2;
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}
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}
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static void cvtSM816K(const unsigned char* src, int ns, unsigned char* dst)
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{
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short v;
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while (ns--) {
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v = M16(C816(src[0]), C816(src[1]));
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src += 2;
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W16(dst, v); dst += 2;
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}
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}
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static void cvtSM168K(const unsigned char* src, int ns, unsigned char* dst)
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{
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while (ns--) {
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*dst++ = C168(M16(R16(src), R16(src + 2)));
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src += 4;
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}
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}
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static void cvtSM1616K(const unsigned char* src, int ns, unsigned char* dst)
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{
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while (ns--) {
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W16(dst, M16(R16(src),R16(src+2))); dst += 2;
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src += 4;
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}
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}
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static void cvtMM816K(const unsigned char* src, int ns, unsigned char* dst)
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{
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while (ns--) {
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W16(dst, C816(*src++)); dst += 2;
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}
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}
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static void cvtSS816K(const unsigned char* src, int ns, unsigned char* dst)
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{
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while (ns--) {
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W16(dst, C816(*src++)); dst += 2;
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W16(dst, C816(*src++)); dst += 2;
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}
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}
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static void cvtMM168K(const unsigned char* src, int ns, unsigned char* dst)
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{
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while (ns--) {
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*dst++ = C168(R16(src)); src += 2;
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}
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}
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static void cvtSS168K(const unsigned char* src, int ns, unsigned char* dst)
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{
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while (ns--) {
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*dst++ = C168(R16(src)); src += 2;
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*dst++ = C168(R16(src)); src += 2;
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}
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}
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static void (*PCM_ConvertKeepRate[16])(const unsigned char*, int, unsigned char*) = {
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cvtSS88K, cvtSM88K, cvtMS88K, cvtMM88K,
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cvtSS816K, cvtSM816K, cvtMS816K, cvtMM816K,
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cvtSS168K, cvtSM168K, cvtMS168K, cvtMM168K,
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cvtSS1616K, cvtSM1616K, cvtMS1616K, cvtMM1616K,
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};
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/***********************************************************************
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* I
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*
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* Interpolate the value at r (r in ]0, 1]) between the two points v1 and v2
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* Linear interpolation is used
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*/
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static inline double I(double v1, double v2, double r)
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{
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if (0.0 >= r || r > 1.0) FIXME("r!! %f\n", r);
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return (1.0 - r) * v1 + r * v2;
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}
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static void cvtSS88C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
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unsigned char* dst, LPDWORD ndst)
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{
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double r;
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while (*nsrc != 0 && *ndst != 0) {
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while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
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if (*nsrc == 0) return;
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apd->last[0].b = *src++;
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apd->last[1].b = *src++;
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apd->srcPos++;
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(*nsrc)--;
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}
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/* now do the interpolation */
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*dst++ = I(apd->last[0].b, src[0], r);
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*dst++ = I(apd->last[1].b, src[1], r);
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apd->dstPos += apd->dstIncr;
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(*ndst)--;
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}
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}
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/* the conversion routines with rate conversion are labelled cvt<X><Y><N><M>C
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* where :
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* <X> is the (M)ono/(S)tereo configuration of input channel
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* <Y> is the (M)ono/(S)tereo configuration of output channel
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* <N> is the number of bits of input channel (8 or 16)
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* <M> is the number of bits of output channel (8 or 16)
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*
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*/
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static void cvtSM88C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
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unsigned char* dst, LPDWORD ndst)
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{
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double r;
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while (*nsrc != 0 && *ndst != 0) {
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while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
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if (*nsrc == 0) return;
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apd->last[0].b = *src++;
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apd->last[1].b = *src++;
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apd->srcPos++;
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(*nsrc)--;
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}
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/* now do the interpolation */
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*dst++ = I(M8(apd->last[0].b, apd->last[1].b), M8(src[0], src[1]), r);
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apd->dstPos += apd->dstIncr;
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(*ndst)--;
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}
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}
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static void cvtMS88C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
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unsigned char* dst, LPDWORD ndst)
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{
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double r;
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while (*nsrc != 0 && *ndst != 0) {
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while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
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if (*nsrc == 0) return;
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apd->last[0].b = *src++;
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apd->srcPos++;
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(*nsrc)--;
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}
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/* now do the interpolation */
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dst[0] = dst[1] = I(apd->last[0].b, src[0], r);
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dst += 2;
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apd->dstPos += apd->dstIncr;
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(*ndst)--;
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}
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}
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static void cvtMM88C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
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unsigned char* dst, LPDWORD ndst)
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{
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double r;
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while (*nsrc != 0 && *ndst != 0) {
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while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
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if (*nsrc == 0) return;
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apd->last[0].b = *src++;
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apd->srcPos++;
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(*nsrc)--;
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}
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/* now do the interpolation */
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*dst++ = I(apd->last[0].b, src[0], r);
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apd->dstPos += apd->dstIncr;
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(*ndst)--;
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}
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}
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static void cvtSS816C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
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unsigned char* dst, LPDWORD ndst)
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{
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double r;
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while (*nsrc != 0 && *ndst != 0) {
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while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
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if (*nsrc == 0) return;
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apd->last[0].b = *src++;
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apd->last[1].b = *src++;
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apd->srcPos++;
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(*nsrc)--;
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}
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/* now do the interpolation */
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W16(dst, I(C816(apd->last[0].b), C816(src[0]), r)); dst += 2;
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W16(dst, I(C816(apd->last[1].b), C816(src[1]), r)); dst += 2;
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apd->dstPos += apd->dstIncr;
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(*ndst)--;
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}
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}
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static void cvtSM816C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
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unsigned char* dst, LPDWORD ndst)
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{
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double r;
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while (*nsrc != 0 && *ndst != 0) {
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while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
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if (*nsrc == 0) return;
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apd->last[0].b = *src++;
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apd->last[1].b = *src++;
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apd->srcPos++;
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(*nsrc)--;
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}
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/* now do the interpolation */
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W16(dst, I(M16(C816(apd->last[0].b), C816(apd->last[1].b)),
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M16(C816(src[0]), C816(src[1])), r));
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dst += 2;
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apd->dstPos += apd->dstIncr;
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(*ndst)--;
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}
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}
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static void cvtMS816C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
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unsigned char* dst, LPDWORD ndst)
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{
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double r;
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short v;
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while (*nsrc != 0 && *ndst != 0) {
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while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
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if (*nsrc == 0) return;
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apd->last[0].b = *src++;
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apd->srcPos++;
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(*nsrc)--;
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}
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/* now do the interpolation */
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v = I(C816(apd->last[0].b), C816(src[0]), r);
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W16(dst, v); dst += 2;
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W16(dst, v); dst += 2;
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apd->dstPos += apd->dstIncr;
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(*ndst)--;
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}
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}
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static void cvtMM816C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
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unsigned char* dst, LPDWORD ndst)
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{
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double r;
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while (*nsrc != 0 && *ndst != 0) {
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while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
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if (*nsrc == 0) return;
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apd->last[0].b = *src++;
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apd->srcPos++;
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(*nsrc)--;
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}
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/* now do the interpolation */
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W16(dst, I(C816(apd->last[0].b), C816(src[0]), r));
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dst += 2;
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apd->dstPos += apd->dstIncr;
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(*ndst)--;
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}
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}
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static void cvtSS168C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
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unsigned char* dst, LPDWORD ndst)
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{
|
|
double r;
|
|
|
|
while (*nsrc != 0 && *ndst != 0) {
|
|
while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
|
|
if (*nsrc == 0) return;
|
|
apd->last[0].s = R16(src); src += 2;
|
|
apd->last[1].s = R16(src); src += 2;
|
|
apd->srcPos++;
|
|
(*nsrc)--;
|
|
}
|
|
/* now do the interpolation */
|
|
*dst++ = C168(I(apd->last[0].s, R16(src) , r));
|
|
*dst++ = C168(I(apd->last[1].s, R16(src+2), r));
|
|
apd->dstPos += apd->dstIncr;
|
|
(*ndst)--;
|
|
}
|
|
}
|
|
|
|
static void cvtSM168C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
|
|
unsigned char* dst, LPDWORD ndst)
|
|
{
|
|
double r;
|
|
|
|
while (*nsrc != 0 && *ndst != 0) {
|
|
while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
|
|
if (*nsrc == 0) return;
|
|
apd->last[0].s = R16(src); src += 2;
|
|
apd->last[1].s = R16(src); src += 2;
|
|
apd->srcPos++;
|
|
(*nsrc)--;
|
|
}
|
|
/* now do the interpolation */
|
|
*dst++ = C168(I(M16(apd->last[0].s, apd->last[1].s),
|
|
M16(R16(src), R16(src + 2)), r));
|
|
apd->dstPos += apd->dstIncr;
|
|
(*ndst)--;
|
|
}
|
|
}
|
|
|
|
|
|
static void cvtMS168C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
|
|
unsigned char* dst, LPDWORD ndst)
|
|
{
|
|
double r;
|
|
|
|
while (*nsrc != 0 && *ndst != 0) {
|
|
while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
|
|
if (*nsrc == 0) return;
|
|
apd->last[0].s = R16(src); src += 2;
|
|
apd->srcPos++;
|
|
(*nsrc)--;
|
|
}
|
|
/* now do the interpolation */
|
|
dst[0] = dst[1] = C168(I(apd->last[0].s, R16(src), r)); dst += 2;
|
|
apd->dstPos += apd->dstIncr;
|
|
(*ndst)--;
|
|
}
|
|
}
|
|
|
|
|
|
static void cvtMM168C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
|
|
unsigned char* dst, LPDWORD ndst)
|
|
{
|
|
double r;
|
|
|
|
while (*nsrc != 0 && *ndst != 0) {
|
|
while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
|
|
if (*nsrc == 0) return;
|
|
apd->last[0].s = R16(src); src += 2;
|
|
apd->srcPos++;
|
|
(*nsrc)--;
|
|
}
|
|
/* now do the interpolation */
|
|
*dst++ = C168(I(apd->last[0].s, R16(src), r));
|
|
apd->dstPos += apd->dstIncr;
|
|
(*ndst)--;
|
|
}
|
|
}
|
|
|
|
static void cvtSS1616C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
|
|
unsigned char* dst, LPDWORD ndst)
|
|
{
|
|
double r;
|
|
|
|
while (*nsrc != 0 && *ndst != 0) {
|
|
while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
|
|
if (*nsrc == 0) return;
|
|
apd->last[0].s = R16(src); src += 2;
|
|
apd->last[1].s = R16(src); src += 2;
|
|
apd->srcPos++;
|
|
(*nsrc)--;
|
|
}
|
|
/* now do the interpolation */
|
|
W16(dst, I(apd->last[0].s, R16(src) , r)); dst += 2;
|
|
W16(dst, I(apd->last[1].s, R16(src+2), r)); dst += 2;
|
|
apd->dstPos += apd->dstIncr;
|
|
(*ndst)--;
|
|
}
|
|
}
|
|
|
|
static void cvtSM1616C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
|
|
unsigned char* dst, LPDWORD ndst)
|
|
{
|
|
double r;
|
|
|
|
while (*nsrc != 0 && *ndst != 0) {
|
|
while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
|
|
if (*nsrc == 0) return;
|
|
apd->last[0].s = R16(src); src += 2;
|
|
apd->last[1].s = R16(src); src += 2;
|
|
apd->srcPos++;
|
|
(*nsrc)--;
|
|
}
|
|
/* now do the interpolation */
|
|
W16(dst, I(M16(apd->last[0].s, apd->last[1].s),
|
|
M16(R16(src), R16(src+2)), r));
|
|
dst += 2;
|
|
apd->dstPos += apd->dstIncr;
|
|
(*ndst)--;
|
|
}
|
|
}
|
|
|
|
static void cvtMS1616C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
|
|
unsigned char* dst, LPDWORD ndst)
|
|
{
|
|
double r;
|
|
short v;
|
|
|
|
while (*nsrc != 0 && *ndst != 0) {
|
|
while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
|
|
if (*nsrc == 0) return;
|
|
apd->last[0].s = R16(src); src += 2;
|
|
apd->srcPos++;
|
|
(*nsrc)--;
|
|
}
|
|
/* now do the interpolation */
|
|
v = I(apd->last[0].s, R16(src), r);
|
|
W16(dst, v); dst += 2;
|
|
W16(dst, v); dst += 2;
|
|
apd->dstPos += apd->dstIncr;
|
|
(*ndst)--;
|
|
}
|
|
}
|
|
|
|
static void cvtMM1616C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
|
|
unsigned char* dst, LPDWORD ndst)
|
|
{
|
|
double r;
|
|
|
|
while (*nsrc != 0 && *ndst != 0) {
|
|
while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
|
|
if (*nsrc == 0) return;
|
|
apd->last[0].s = R16(src); src += 2;
|
|
apd->srcPos++;
|
|
(*nsrc)--;
|
|
}
|
|
/* now do the interpolation */
|
|
W16(dst, I(apd->last[0].s, R16(src), r)); dst += 2;
|
|
apd->dstPos += apd->dstIncr;
|
|
(*ndst)--;
|
|
}
|
|
}
|
|
|
|
static void (*PCM_ConvertChangeRate[16])(AcmPcmData* apd,
|
|
const unsigned char* src, LPDWORD nsrc,
|
|
unsigned char* dst, LPDWORD ndst) = {
|
|
cvtSS88C, cvtSM88C, cvtMS88C, cvtMM88C,
|
|
cvtSS816C, cvtSM816C, cvtMS816C, cvtMM816C,
|
|
cvtSS168C, cvtSM168C, cvtMS168C, cvtMM168C,
|
|
cvtSS1616C, cvtSM1616C, cvtMS1616C, cvtMM1616C,
|
|
};
|
|
|
|
/***********************************************************************
|
|
* PCM_DriverDetails
|
|
*
|
|
*/
|
|
static LRESULT PCM_DriverDetails(PACMDRIVERDETAILSW add)
|
|
{
|
|
add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
|
|
add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
|
|
add->wMid = 0xFF;
|
|
add->wPid = 0x00;
|
|
add->vdwACM = 0x01000000;
|
|
add->vdwDriver = 0x01000000;
|
|
add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CONVERTER;
|
|
add->cFormatTags = 1;
|
|
add->cFilterTags = 0;
|
|
add->hicon = (HICON)0;
|
|
lstrcpyAtoW(add->szShortName, "WINE-PCM");
|
|
lstrcpyAtoW(add->szLongName, "Wine PCM converter");
|
|
lstrcpyAtoW(add->szCopyright, "Brought to you by the Wine team...");
|
|
lstrcpyAtoW(add->szLicensing, "Refer to LICENSE file");
|
|
add->szFeatures[0] = 0;
|
|
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PCM_FormatTagDetails
|
|
*
|
|
*/
|
|
static LRESULT PCM_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
|
|
{
|
|
switch (dwQuery) {
|
|
case ACM_FORMATTAGDETAILSF_INDEX:
|
|
if (aftd->dwFormatTagIndex != 0) return ACMERR_NOTPOSSIBLE;
|
|
break;
|
|
case ACM_FORMATTAGDETAILSF_FORMATTAG:
|
|
if (aftd->dwFormatTag != WAVE_FORMAT_PCM) return ACMERR_NOTPOSSIBLE;
|
|
break;
|
|
case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
|
|
if (aftd->dwFormatTag != WAVE_FORMAT_UNKNOWN &&
|
|
aftd->dwFormatTag != WAVE_FORMAT_UNKNOWN)
|
|
return ACMERR_NOTPOSSIBLE;
|
|
break;
|
|
default:
|
|
WARN("Unsupported query %08lx\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)
|
|
{
|
|
switch (dwQuery) {
|
|
case ACM_FORMATDETAILSF_FORMAT:
|
|
afd->dwFormatIndex = PCM_GetFormatIndex(afd->pwfx);
|
|
if (afd->dwFormatIndex == 0xFFFFFFFF) 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 %08lx\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... */
|
|
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PCM_FormatSuggest
|
|
*
|
|
*/
|
|
static LRESULT PCM_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
|
|
{
|
|
FIXME("(%p);\n", adfs);
|
|
return MMSYSERR_NOTSUPPORTED;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PCM_Reset
|
|
*
|
|
*/
|
|
static void PCM_Reset(AcmPcmData* apd, int srcNumBits)
|
|
{
|
|
apd->srcPos = 0;
|
|
apd->dstPos = 0;
|
|
/* initialize with neutral value */
|
|
if (srcNumBits == 16) {
|
|
apd->last[0].s = 0;
|
|
apd->last[1].s = 0;
|
|
} else {
|
|
apd->last[0].b = (BYTE)0x80;
|
|
apd->last[1].b = (BYTE)0x80;
|
|
}
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PCM_StreamOpen
|
|
*
|
|
*/
|
|
static LRESULT PCM_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
|
|
{
|
|
AcmPcmData* apd;
|
|
int idx = 0;
|
|
|
|
assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
|
|
|
|
if (PCM_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
|
|
PCM_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF)
|
|
return ACMERR_NOTPOSSIBLE;
|
|
|
|
apd = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmPcmData));
|
|
if (apd == 0) return MMSYSERR_NOMEM;
|
|
|
|
adsi->dwDriver = (DWORD)apd;
|
|
adsi->fdwDriver = 0;
|
|
|
|
if (adsi->pwfxSrc->wBitsPerSample == 16) idx += 8;
|
|
if (adsi->pwfxDst->wBitsPerSample == 16) idx += 4;
|
|
if (adsi->pwfxSrc->nChannels == 1) idx += 2;
|
|
if (adsi->pwfxDst->nChannels == 1) idx += 1;
|
|
|
|
if (adsi->pwfxSrc->nSamplesPerSec == adsi->pwfxDst->nSamplesPerSec) {
|
|
apd->cvt.cvtKeepRate = PCM_ConvertKeepRate[idx];
|
|
} else {
|
|
adsi->fdwDriver |= PCM_RESAMPLE;
|
|
apd->dstIncr = (double)(adsi->pwfxSrc->nSamplesPerSec) /
|
|
(double)(adsi->pwfxDst->nSamplesPerSec);
|
|
PCM_Reset(apd, adsi->pwfxSrc->wBitsPerSample);
|
|
apd->cvt.cvtChangeRate = PCM_ConvertChangeRate[idx];
|
|
}
|
|
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PCM_StreamClose
|
|
*
|
|
*/
|
|
static LRESULT PCM_StreamClose(PACMDRVSTREAMINSTANCE adsi)
|
|
{
|
|
HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
|
|
return MMSYSERR_NOERROR;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PCM_round
|
|
*
|
|
*/
|
|
static inline DWORD PCM_round(DWORD a, DWORD b, DWORD c)
|
|
{
|
|
assert(a && b && 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)
|
|
{
|
|
switch (adss->fdwSize) {
|
|
case ACM_STREAMSIZEF_DESTINATION:
|
|
/* cbDstLength => cbSrcLength */
|
|
adss->cbSrcLength = PCM_round(adss->cbDstLength,
|
|
adsi->pwfxSrc->nAvgBytesPerSec,
|
|
adsi->pwfxDst->nAvgBytesPerSec);
|
|
break;
|
|
case ACM_STREAMSIZEF_SOURCE:
|
|
/* cbSrcLength => cbDstLength */
|
|
adss->cbDstLength = PCM_round(adss->cbSrcLength,
|
|
adsi->pwfxDst->nAvgBytesPerSec,
|
|
adsi->pwfxSrc->nAvgBytesPerSec);
|
|
break;
|
|
default:
|
|
WARN("Unsupported query %08lx\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);
|
|
|
|
if (adsh->fdwConvert &
|
|
~(ACM_STREAMCONVERTF_BLOCKALIGN|
|
|
ACM_STREAMCONVERTF_END|
|
|
ACM_STREAMCONVERTF_START)) {
|
|
FIXME("Unsupported fdwConvert (%08lx), 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)) {
|
|
PCM_Reset(apd, adsi->pwfxSrc->wBitsPerSample);
|
|
}
|
|
|
|
/* do the job */
|
|
if (adsi->fdwDriver & PCM_RESAMPLE) {
|
|
DWORD nsrc2 = nsrc;
|
|
DWORD ndst2 = ndst;
|
|
|
|
apd->cvt.cvtChangeRate(apd, adsh->pbSrc, &nsrc2, adsh->pbDst, &ndst2);
|
|
nsrc -= nsrc2;
|
|
ndst -= ndst2;
|
|
} 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;
|
|
}
|
|
|
|
/**************************************************************************
|
|
* PCM_DriverProc [exported]
|
|
*/
|
|
LRESULT CALLBACK PCM_DriverProc(DWORD dwDevID, HDRVR hDriv, UINT wMsg,
|
|
LPARAM dwParam1, LPARAM dwParam2)
|
|
{
|
|
TRACE("(%08lx %08lx %u %08lx %08lx);\n",
|
|
dwDevID, (DWORD)hDriv, wMsg, dwParam1, dwParam2);
|
|
|
|
switch (wMsg) {
|
|
case DRV_LOAD: return 1;
|
|
case DRV_FREE: return 1;
|
|
case DRV_OPEN: return PCM_drvOpen((LPSTR)dwParam1);
|
|
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);
|
|
}
|
|
return 0;
|
|
}
|