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* * |
* * |
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* libgig - C++ cross-platform Gigasampler format file loader library * |
* libgig - C++ cross-platform Gigasampler format file loader library * |
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* * |
* * |
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* Copyright (C) 2003 by Christian Schoenebeck * |
* Copyright (C) 2003-2005 by Christian Schoenebeck * |
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* <cuse@users.sourceforge.net> * |
* <cuse@users.sourceforge.net> * |
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* * |
* * |
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* This library is free software; you can redistribute it and/or modify * |
* This library is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
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#include "gig.h" |
#include "gig.h" |
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#include "helper.h" |
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#include <math.h> |
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#include <iostream> |
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/// Initial size of the sample buffer which is used for decompression of |
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/// compressed sample wave streams - this value should always be bigger than |
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/// the biggest sample piece expected to be read by the sampler engine, |
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/// otherwise the buffer size will be raised at runtime and thus the buffer |
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/// reallocated which is time consuming and unefficient. |
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#define INITIAL_SAMPLE_BUFFER_SIZE 512000 // 512 kB |
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/** (so far) every exponential paramater in the gig format has a basis of 1.000000008813822 */ |
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#define GIG_EXP_DECODE(x) (pow(1.000000008813822, x)) |
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#define GIG_EXP_ENCODE(x) (log(x) / log(1.000000008813822)) |
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#define GIG_PITCH_TRACK_EXTRACT(x) (!(x & 0x01)) |
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#define GIG_PITCH_TRACK_ENCODE(x) ((x) ? 0x00 : 0x01) |
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#define GIG_VCF_RESONANCE_CTRL_EXTRACT(x) ((x >> 4) & 0x03) |
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#define GIG_VCF_RESONANCE_CTRL_ENCODE(x) ((x & 0x03) << 4) |
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#define GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(x) ((x >> 1) & 0x03) |
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#define GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(x) ((x >> 3) & 0x03) |
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#define GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(x) ((x >> 5) & 0x03) |
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#define GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(x) ((x & 0x03) << 1) |
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#define GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(x) ((x & 0x03) << 3) |
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#define GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(x) ((x & 0x03) << 5) |
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namespace gig { |
namespace gig { |
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// *************** dimension_def_t *************** |
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// * |
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dimension_def_t& dimension_def_t::operator=(const dimension_def_t& arg) { |
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dimension = arg.dimension; |
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bits = arg.bits; |
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zones = arg.zones; |
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split_type = arg.split_type; |
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ranges = arg.ranges; |
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zone_size = arg.zone_size; |
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if (ranges) { |
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ranges = new range_t[zones]; |
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for (int i = 0; i < zones; i++) |
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ranges[i] = arg.ranges[i]; |
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} |
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return *this; |
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} |
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// *************** progress_t *************** |
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// * |
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|
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progress_t::progress_t() { |
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callback = NULL; |
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custom = NULL; |
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__range_min = 0.0f; |
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__range_max = 1.0f; |
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} |
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// private helper function to convert progress of a subprocess into the global progress |
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static void __notify_progress(progress_t* pProgress, float subprogress) { |
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if (pProgress && pProgress->callback) { |
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const float totalrange = pProgress->__range_max - pProgress->__range_min; |
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const float totalprogress = pProgress->__range_min + subprogress * totalrange; |
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pProgress->factor = totalprogress; |
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pProgress->callback(pProgress); // now actually notify about the progress |
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} |
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} |
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// private helper function to divide a progress into subprogresses |
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static void __divide_progress(progress_t* pParentProgress, progress_t* pSubProgress, float totalTasks, float currentTask) { |
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if (pParentProgress && pParentProgress->callback) { |
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const float totalrange = pParentProgress->__range_max - pParentProgress->__range_min; |
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pSubProgress->callback = pParentProgress->callback; |
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pSubProgress->custom = pParentProgress->custom; |
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pSubProgress->__range_min = pParentProgress->__range_min + totalrange * currentTask / totalTasks; |
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pSubProgress->__range_max = pSubProgress->__range_min + totalrange / totalTasks; |
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} |
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} |
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// *************** Internal functions for sample decompression *************** |
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// * |
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namespace { |
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inline int get12lo(const unsigned char* pSrc) |
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{ |
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const int x = pSrc[0] | (pSrc[1] & 0x0f) << 8; |
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return x & 0x800 ? x - 0x1000 : x; |
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} |
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inline int get12hi(const unsigned char* pSrc) |
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{ |
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const int x = pSrc[1] >> 4 | pSrc[2] << 4; |
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return x & 0x800 ? x - 0x1000 : x; |
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} |
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inline int16_t get16(const unsigned char* pSrc) |
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{ |
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return int16_t(pSrc[0] | pSrc[1] << 8); |
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} |
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inline int get24(const unsigned char* pSrc) |
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{ |
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const int x = pSrc[0] | pSrc[1] << 8 | pSrc[2] << 16; |
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return x & 0x800000 ? x - 0x1000000 : x; |
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} |
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void Decompress16(int compressionmode, const unsigned char* params, |
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int srcStep, int dstStep, |
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const unsigned char* pSrc, int16_t* pDst, |
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unsigned long currentframeoffset, |
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unsigned long copysamples) |
139 |
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{ |
140 |
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switch (compressionmode) { |
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case 0: // 16 bit uncompressed |
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pSrc += currentframeoffset * srcStep; |
143 |
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while (copysamples) { |
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*pDst = get16(pSrc); |
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pDst += dstStep; |
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pSrc += srcStep; |
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copysamples--; |
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} |
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break; |
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|
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case 1: // 16 bit compressed to 8 bit |
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int y = get16(params); |
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int dy = get16(params + 2); |
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while (currentframeoffset) { |
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dy -= int8_t(*pSrc); |
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y -= dy; |
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pSrc += srcStep; |
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currentframeoffset--; |
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} |
160 |
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while (copysamples) { |
161 |
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dy -= int8_t(*pSrc); |
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y -= dy; |
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*pDst = y; |
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pDst += dstStep; |
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pSrc += srcStep; |
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copysamples--; |
167 |
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} |
168 |
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break; |
169 |
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} |
170 |
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} |
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void Decompress24(int compressionmode, const unsigned char* params, |
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int dstStep, const unsigned char* pSrc, int16_t* pDst, |
174 |
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unsigned long currentframeoffset, |
175 |
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unsigned long copysamples, int truncatedBits) |
176 |
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{ |
177 |
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// Note: The 24 bits are truncated to 16 bits for now. |
178 |
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int y, dy, ddy, dddy; |
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const int shift = 8 - truncatedBits; |
181 |
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#define GET_PARAMS(params) \ |
183 |
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y = get24(params); \ |
184 |
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dy = y - get24((params) + 3); \ |
185 |
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ddy = get24((params) + 6); \ |
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dddy = get24((params) + 9) |
187 |
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188 |
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#define SKIP_ONE(x) \ |
189 |
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dddy -= (x); \ |
190 |
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ddy -= dddy; \ |
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dy = -dy - ddy; \ |
192 |
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y += dy |
193 |
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#define COPY_ONE(x) \ |
195 |
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SKIP_ONE(x); \ |
196 |
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*pDst = y >> shift; \ |
197 |
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pDst += dstStep |
198 |
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|
199 |
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switch (compressionmode) { |
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case 2: // 24 bit uncompressed |
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pSrc += currentframeoffset * 3; |
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while (copysamples) { |
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*pDst = get24(pSrc) >> shift; |
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pDst += dstStep; |
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pSrc += 3; |
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copysamples--; |
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} |
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break; |
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|
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case 3: // 24 bit compressed to 16 bit |
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GET_PARAMS(params); |
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while (currentframeoffset) { |
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SKIP_ONE(get16(pSrc)); |
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pSrc += 2; |
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currentframeoffset--; |
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} |
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while (copysamples) { |
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COPY_ONE(get16(pSrc)); |
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pSrc += 2; |
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copysamples--; |
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} |
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break; |
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case 4: // 24 bit compressed to 12 bit |
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GET_PARAMS(params); |
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while (currentframeoffset > 1) { |
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SKIP_ONE(get12lo(pSrc)); |
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SKIP_ONE(get12hi(pSrc)); |
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pSrc += 3; |
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currentframeoffset -= 2; |
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} |
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if (currentframeoffset) { |
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SKIP_ONE(get12lo(pSrc)); |
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currentframeoffset--; |
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if (copysamples) { |
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COPY_ONE(get12hi(pSrc)); |
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pSrc += 3; |
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copysamples--; |
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} |
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} |
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while (copysamples > 1) { |
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COPY_ONE(get12lo(pSrc)); |
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COPY_ONE(get12hi(pSrc)); |
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pSrc += 3; |
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copysamples -= 2; |
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} |
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if (copysamples) { |
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COPY_ONE(get12lo(pSrc)); |
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} |
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break; |
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case 5: // 24 bit compressed to 8 bit |
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GET_PARAMS(params); |
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while (currentframeoffset) { |
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SKIP_ONE(int8_t(*pSrc++)); |
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currentframeoffset--; |
257 |
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} |
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while (copysamples) { |
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COPY_ONE(int8_t(*pSrc++)); |
260 |
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copysamples--; |
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} |
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break; |
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} |
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} |
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const int bytesPerFrame[] = { 4096, 2052, 768, 524, 396, 268 }; |
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const int bytesPerFrameNoHdr[] = { 4096, 2048, 768, 512, 384, 256 }; |
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const int headerSize[] = { 0, 4, 0, 12, 12, 12 }; |
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const int bitsPerSample[] = { 16, 8, 24, 16, 12, 8 }; |
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} |
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// *************** Sample *************** |
// *************** Sample *************** |
274 |
// * |
// * |
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|
276 |
unsigned int Sample::Instances = 0; |
unsigned int Sample::Instances = 0; |
277 |
void* Sample::pDecompressionBuffer = NULL; |
buffer_t Sample::InternalDecompressionBuffer; |
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unsigned long Sample::DecompressionBufferSize = 0; |
|
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279 |
Sample::Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset) : DLS::Sample((DLS::File*) pFile, waveList, WavePoolOffset) { |
/** @brief Constructor. |
280 |
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* |
281 |
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* Load an existing sample or create a new one. A 'wave' list chunk must |
282 |
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* be given to this constructor. In case the given 'wave' list chunk |
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* contains a 'fmt', 'data' (and optionally a '3gix', 'smpl') chunk, the |
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* format and sample data will be loaded from there, otherwise default |
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* values will be used and those chunks will be created when |
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* File::Save() will be called later on. |
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* |
288 |
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* @param pFile - pointer to gig::File where this sample is |
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* located (or will be located) |
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* @param waveList - pointer to 'wave' list chunk which is (or |
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* will be) associated with this sample |
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* @param WavePoolOffset - offset of this sample data from wave pool |
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* ('wvpl') list chunk |
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* @param fileNo - number of an extension file where this sample |
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* is located, 0 otherwise |
296 |
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*/ |
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Sample::Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset, unsigned long fileNo) : DLS::Sample((DLS::File*) pFile, waveList, WavePoolOffset) { |
298 |
Instances++; |
Instances++; |
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FileNo = fileNo; |
300 |
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301 |
RIFF::Chunk* _3gix = waveList->GetSubChunk(CHUNK_ID_3GIX); |
pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX); |
302 |
if (!_3gix) throw gig::Exception("Mandatory chunks in <wave> list chunk not found."); |
if (pCk3gix) { |
303 |
SampleGroup = _3gix->ReadInt16(); |
SampleGroup = pCk3gix->ReadInt16(); |
304 |
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} else { // '3gix' chunk missing |
305 |
RIFF::Chunk* smpl = waveList->GetSubChunk(CHUNK_ID_SMPL); |
// use default value(s) |
306 |
if (!smpl) throw gig::Exception("Mandatory chunks in <wave> list chunk not found."); |
SampleGroup = 0; |
307 |
Manufacturer = smpl->ReadInt32(); |
} |
308 |
Product = smpl->ReadInt32(); |
|
309 |
SamplePeriod = smpl->ReadInt32(); |
pCkSmpl = waveList->GetSubChunk(CHUNK_ID_SMPL); |
310 |
MIDIUnityNote = smpl->ReadInt32(); |
if (pCkSmpl) { |
311 |
FineTune = smpl->ReadInt32(); |
Manufacturer = pCkSmpl->ReadInt32(); |
312 |
smpl->Read(&SMPTEFormat, 1, 4); |
Product = pCkSmpl->ReadInt32(); |
313 |
SMPTEOffset = smpl->ReadInt32(); |
SamplePeriod = pCkSmpl->ReadInt32(); |
314 |
Loops = smpl->ReadInt32(); |
MIDIUnityNote = pCkSmpl->ReadInt32(); |
315 |
uint32_t manufByt = smpl->ReadInt32(); |
FineTune = pCkSmpl->ReadInt32(); |
316 |
LoopID = smpl->ReadInt32(); |
pCkSmpl->Read(&SMPTEFormat, 1, 4); |
317 |
smpl->Read(&LoopType, 1, 4); |
SMPTEOffset = pCkSmpl->ReadInt32(); |
318 |
LoopStart = smpl->ReadInt32(); |
Loops = pCkSmpl->ReadInt32(); |
319 |
LoopEnd = smpl->ReadInt32(); |
pCkSmpl->ReadInt32(); // manufByt |
320 |
LoopFraction = smpl->ReadInt32(); |
LoopID = pCkSmpl->ReadInt32(); |
321 |
LoopPlayCount = smpl->ReadInt32(); |
pCkSmpl->Read(&LoopType, 1, 4); |
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LoopStart = pCkSmpl->ReadInt32(); |
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LoopEnd = pCkSmpl->ReadInt32(); |
324 |
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LoopFraction = pCkSmpl->ReadInt32(); |
325 |
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LoopPlayCount = pCkSmpl->ReadInt32(); |
326 |
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} else { // 'smpl' chunk missing |
327 |
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// use default values |
328 |
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Manufacturer = 0; |
329 |
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Product = 0; |
330 |
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SamplePeriod = 1 / SamplesPerSecond; |
331 |
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MIDIUnityNote = 64; |
332 |
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FineTune = 0; |
333 |
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SMPTEOffset = 0; |
334 |
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Loops = 0; |
335 |
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LoopID = 0; |
336 |
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LoopStart = 0; |
337 |
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LoopEnd = 0; |
338 |
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LoopFraction = 0; |
339 |
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LoopPlayCount = 0; |
340 |
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} |
341 |
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|
342 |
FrameTable = NULL; |
FrameTable = NULL; |
343 |
SamplePos = 0; |
SamplePos = 0; |
345 |
RAMCache.pStart = NULL; |
RAMCache.pStart = NULL; |
346 |
RAMCache.NullExtensionSize = 0; |
RAMCache.NullExtensionSize = 0; |
347 |
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|
348 |
Compressed = (waveList->GetSubChunk(CHUNK_ID_EWAV)); |
if (BitDepth > 24) throw gig::Exception("Only samples up to 24 bit supported"); |
349 |
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|
350 |
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RIFF::Chunk* ewav = waveList->GetSubChunk(CHUNK_ID_EWAV); |
351 |
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Compressed = ewav; |
352 |
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Dithered = false; |
353 |
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TruncatedBits = 0; |
354 |
if (Compressed) { |
if (Compressed) { |
355 |
ScanCompressedSample(); |
uint32_t version = ewav->ReadInt32(); |
356 |
if (!pDecompressionBuffer) { |
if (version == 3 && BitDepth == 24) { |
357 |
pDecompressionBuffer = new int8_t[INITIAL_SAMPLE_BUFFER_SIZE]; |
Dithered = ewav->ReadInt32(); |
358 |
DecompressionBufferSize = INITIAL_SAMPLE_BUFFER_SIZE; |
ewav->SetPos(Channels == 2 ? 84 : 64); |
359 |
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TruncatedBits = ewav->ReadInt32(); |
360 |
} |
} |
361 |
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ScanCompressedSample(); |
362 |
} |
} |
|
FrameOffset = 0; // just for streaming compressed samples |
|
363 |
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|
364 |
LoopStart /= FrameSize; // convert to sample points |
// we use a buffer for decompression and for truncating 24 bit samples to 16 bit |
365 |
LoopEnd /= FrameSize; // convert to sample points |
if ((Compressed || BitDepth == 24) && !InternalDecompressionBuffer.Size) { |
366 |
LoopSize = LoopEnd - LoopStart; |
InternalDecompressionBuffer.pStart = new unsigned char[INITIAL_SAMPLE_BUFFER_SIZE]; |
367 |
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InternalDecompressionBuffer.Size = INITIAL_SAMPLE_BUFFER_SIZE; |
368 |
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} |
369 |
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FrameOffset = 0; // just for streaming compressed samples |
370 |
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|
371 |
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LoopSize = LoopEnd - LoopStart; |
372 |
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} |
373 |
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|
374 |
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/** |
375 |
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* Apply sample and its settings to the respective RIFF chunks. You have |
376 |
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* to call File::Save() to make changes persistent. |
377 |
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* |
378 |
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* Usually there is absolutely no need to call this method explicitly. |
379 |
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* It will be called automatically when File::Save() was called. |
380 |
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* |
381 |
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* @throws DLS::Exception if FormatTag != WAVE_FORMAT_PCM or no sample data |
382 |
|
* was provided yet |
383 |
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* @throws gig::Exception if there is any invalid sample setting |
384 |
|
*/ |
385 |
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void Sample::UpdateChunks() { |
386 |
|
// first update base class's chunks |
387 |
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DLS::Sample::UpdateChunks(); |
388 |
|
|
389 |
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// make sure 'smpl' chunk exists |
390 |
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pCkSmpl = pWaveList->GetSubChunk(CHUNK_ID_SMPL); |
391 |
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if (!pCkSmpl) pCkSmpl = pWaveList->AddSubChunk(CHUNK_ID_SMPL, 60); |
392 |
|
// update 'smpl' chunk |
393 |
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uint8_t* pData = (uint8_t*) pCkSmpl->LoadChunkData(); |
394 |
|
SamplePeriod = 1 / SamplesPerSecond; |
395 |
|
memcpy(&pData[0], &Manufacturer, 4); |
396 |
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memcpy(&pData[4], &Product, 4); |
397 |
|
memcpy(&pData[8], &SamplePeriod, 4); |
398 |
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memcpy(&pData[12], &MIDIUnityNote, 4); |
399 |
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memcpy(&pData[16], &FineTune, 4); |
400 |
|
memcpy(&pData[20], &SMPTEFormat, 4); |
401 |
|
memcpy(&pData[24], &SMPTEOffset, 4); |
402 |
|
memcpy(&pData[28], &Loops, 4); |
403 |
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|
404 |
|
// we skip 'manufByt' for now (4 bytes) |
405 |
|
|
406 |
|
memcpy(&pData[36], &LoopID, 4); |
407 |
|
memcpy(&pData[40], &LoopType, 4); |
408 |
|
memcpy(&pData[44], &LoopStart, 4); |
409 |
|
memcpy(&pData[48], &LoopEnd, 4); |
410 |
|
memcpy(&pData[52], &LoopFraction, 4); |
411 |
|
memcpy(&pData[56], &LoopPlayCount, 4); |
412 |
|
|
413 |
|
// make sure '3gix' chunk exists |
414 |
|
pCk3gix = pWaveList->GetSubChunk(CHUNK_ID_3GIX); |
415 |
|
if (!pCk3gix) pCk3gix = pWaveList->AddSubChunk(CHUNK_ID_3GIX, 4); |
416 |
|
// update '3gix' chunk |
417 |
|
pData = (uint8_t*) pCk3gix->LoadChunkData(); |
418 |
|
memcpy(&pData[0], &SampleGroup, 2); |
419 |
} |
} |
420 |
|
|
421 |
/// Scans compressed samples for mandatory informations (e.g. actual number of total sample points). |
/// Scans compressed samples for mandatory informations (e.g. actual number of total sample points). |
424 |
this->SamplesTotal = 0; |
this->SamplesTotal = 0; |
425 |
std::list<unsigned long> frameOffsets; |
std::list<unsigned long> frameOffsets; |
426 |
|
|
427 |
|
SamplesPerFrame = BitDepth == 24 ? 256 : 2048; |
428 |
|
WorstCaseFrameSize = SamplesPerFrame * FrameSize + Channels; // +Channels for compression flag |
429 |
|
|
430 |
// Scanning |
// Scanning |
431 |
pCkData->SetPos(0); |
pCkData->SetPos(0); |
432 |
while (pCkData->GetState() == RIFF::stream_ready) { |
if (Channels == 2) { // Stereo |
433 |
frameOffsets.push_back(pCkData->GetPos()); |
for (int i = 0 ; ; i++) { |
434 |
int16_t compressionmode = pCkData->ReadInt16(); |
// for 24 bit samples every 8:th frame offset is |
435 |
this->SamplesTotal += 2048; |
// stored, to save some memory |
436 |
switch (compressionmode) { |
if (BitDepth != 24 || (i & 7) == 0) frameOffsets.push_back(pCkData->GetPos()); |
437 |
case 1: // left channel compressed |
|
438 |
case 256: // right channel compressed |
const int mode_l = pCkData->ReadUint8(); |
439 |
pCkData->SetPos(6148, RIFF::stream_curpos); |
const int mode_r = pCkData->ReadUint8(); |
440 |
|
if (mode_l > 5 || mode_r > 5) throw gig::Exception("Unknown compression mode"); |
441 |
|
const unsigned long frameSize = bytesPerFrame[mode_l] + bytesPerFrame[mode_r]; |
442 |
|
|
443 |
|
if (pCkData->RemainingBytes() <= frameSize) { |
444 |
|
SamplesInLastFrame = |
445 |
|
((pCkData->RemainingBytes() - headerSize[mode_l] - headerSize[mode_r]) << 3) / |
446 |
|
(bitsPerSample[mode_l] + bitsPerSample[mode_r]); |
447 |
|
SamplesTotal += SamplesInLastFrame; |
448 |
break; |
break; |
449 |
case 257: // both channels compressed |
} |
450 |
pCkData->SetPos(4104, RIFF::stream_curpos); |
SamplesTotal += SamplesPerFrame; |
451 |
|
pCkData->SetPos(frameSize, RIFF::stream_curpos); |
452 |
|
} |
453 |
|
} |
454 |
|
else { // Mono |
455 |
|
for (int i = 0 ; ; i++) { |
456 |
|
if (BitDepth != 24 || (i & 7) == 0) frameOffsets.push_back(pCkData->GetPos()); |
457 |
|
|
458 |
|
const int mode = pCkData->ReadUint8(); |
459 |
|
if (mode > 5) throw gig::Exception("Unknown compression mode"); |
460 |
|
const unsigned long frameSize = bytesPerFrame[mode]; |
461 |
|
|
462 |
|
if (pCkData->RemainingBytes() <= frameSize) { |
463 |
|
SamplesInLastFrame = |
464 |
|
((pCkData->RemainingBytes() - headerSize[mode]) << 3) / bitsPerSample[mode]; |
465 |
|
SamplesTotal += SamplesInLastFrame; |
466 |
break; |
break; |
467 |
default: // both channels uncompressed |
} |
468 |
pCkData->SetPos(8192, RIFF::stream_curpos); |
SamplesTotal += SamplesPerFrame; |
469 |
|
pCkData->SetPos(frameSize, RIFF::stream_curpos); |
470 |
} |
} |
471 |
} |
} |
472 |
pCkData->SetPos(0); |
pCkData->SetPos(0); |
473 |
|
|
|
//FIXME: only seen compressed samples with 16 bit stereo so far |
|
|
this->FrameSize = 4; |
|
|
this->BitDepth = 16; |
|
|
|
|
474 |
// Build the frames table (which is used for fast resolving of a frame's chunk offset) |
// Build the frames table (which is used for fast resolving of a frame's chunk offset) |
475 |
if (FrameTable) delete[] FrameTable; |
if (FrameTable) delete[] FrameTable; |
476 |
FrameTable = new unsigned long[frameOffsets.size()]; |
FrameTable = new unsigned long[frameOffsets.size()]; |
506 |
* that will be returned to determine the actual cached samples, but note |
* that will be returned to determine the actual cached samples, but note |
507 |
* that the size is given in bytes! You get the number of actually cached |
* that the size is given in bytes! You get the number of actually cached |
508 |
* samples by dividing it by the frame size of the sample: |
* samples by dividing it by the frame size of the sample: |
509 |
* |
* @code |
510 |
* buffer_t buf = pSample->LoadSampleData(acquired_samples); |
* buffer_t buf = pSample->LoadSampleData(acquired_samples); |
511 |
* long cachedsamples = buf.Size / pSample->FrameSize; |
* long cachedsamples = buf.Size / pSample->FrameSize; |
512 |
|
* @endcode |
513 |
* |
* |
514 |
* @param SampleCount - number of sample points to load into RAM |
* @param SampleCount - number of sample points to load into RAM |
515 |
* @returns buffer_t structure with start address and size of |
* @returns buffer_t structure with start address and size of |
555 |
* that will be returned to determine the actual cached samples, but note |
* that will be returned to determine the actual cached samples, but note |
556 |
* that the size is given in bytes! You get the number of actually cached |
* that the size is given in bytes! You get the number of actually cached |
557 |
* samples by dividing it by the frame size of the sample: |
* samples by dividing it by the frame size of the sample: |
558 |
* |
* @code |
559 |
* buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(acquired_samples, null_samples); |
* buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(acquired_samples, null_samples); |
560 |
* long cachedsamples = buf.Size / pSample->FrameSize; |
* long cachedsamples = buf.Size / pSample->FrameSize; |
561 |
* |
* @endcode |
562 |
* The method will add \a NullSamplesCount silence samples past the |
* The method will add \a NullSamplesCount silence samples past the |
563 |
* official buffer end (this won't affect the 'Size' member of the |
* official buffer end (this won't affect the 'Size' member of the |
564 |
* buffer_t structure, that means 'Size' always reflects the size of the |
* buffer_t structure, that means 'Size' always reflects the size of the |
618 |
RAMCache.Size = 0; |
RAMCache.Size = 0; |
619 |
} |
} |
620 |
|
|
621 |
|
/** @brief Resize sample. |
622 |
|
* |
623 |
|
* Resizes the sample's wave form data, that is the actual size of |
624 |
|
* sample wave data possible to be written for this sample. This call |
625 |
|
* will return immediately and just schedule the resize operation. You |
626 |
|
* should call File::Save() to actually perform the resize operation(s) |
627 |
|
* "physically" to the file. As this can take a while on large files, it |
628 |
|
* is recommended to call Resize() first on all samples which have to be |
629 |
|
* resized and finally to call File::Save() to perform all those resize |
630 |
|
* operations in one rush. |
631 |
|
* |
632 |
|
* The actual size (in bytes) is dependant to the current FrameSize |
633 |
|
* value. You may want to set FrameSize before calling Resize(). |
634 |
|
* |
635 |
|
* <b>Caution:</b> You cannot directly write (i.e. with Write()) to |
636 |
|
* enlarged samples before calling File::Save() as this might exceed the |
637 |
|
* current sample's boundary! |
638 |
|
* |
639 |
|
* Also note: only WAVE_FORMAT_PCM is currently supported, that is |
640 |
|
* FormatTag must be WAVE_FORMAT_PCM. Trying to resize samples with |
641 |
|
* other formats will fail! |
642 |
|
* |
643 |
|
* @param iNewSize - new sample wave data size in sample points (must be |
644 |
|
* greater than zero) |
645 |
|
* @throws DLS::Excecption if FormatTag != WAVE_FORMAT_PCM |
646 |
|
* or if \a iNewSize is less than 1 |
647 |
|
* @throws gig::Exception if existing sample is compressed |
648 |
|
* @see DLS::Sample::GetSize(), DLS::Sample::FrameSize, |
649 |
|
* DLS::Sample::FormatTag, File::Save() |
650 |
|
*/ |
651 |
|
void Sample::Resize(int iNewSize) { |
652 |
|
if (Compressed) throw gig::Exception("There is no support for modifying compressed samples (yet)"); |
653 |
|
DLS::Sample::Resize(iNewSize); |
654 |
|
} |
655 |
|
|
656 |
/** |
/** |
657 |
* Sets the position within the sample (in sample points, not in |
* Sets the position within the sample (in sample points, not in |
658 |
* bytes). Use this method and <i>Read()</i> if you don't want to load |
* bytes). Use this method and <i>Read()</i> if you don't want to load |
714 |
} |
} |
715 |
|
|
716 |
/** |
/** |
717 |
|
* Reads \a SampleCount number of sample points from the position stored |
718 |
|
* in \a pPlaybackState into the buffer pointed by \a pBuffer and moves |
719 |
|
* the position within the sample respectively, this method honors the |
720 |
|
* looping informations of the sample (if any). The sample wave stream |
721 |
|
* will be decompressed on the fly if using a compressed sample. Use this |
722 |
|
* method if you don't want to load the sample into RAM, thus for disk |
723 |
|
* streaming. All this methods needs to know to proceed with streaming |
724 |
|
* for the next time you call this method is stored in \a pPlaybackState. |
725 |
|
* You have to allocate and initialize the playback_state_t structure by |
726 |
|
* yourself before you use it to stream a sample: |
727 |
|
* @code |
728 |
|
* gig::playback_state_t playbackstate; |
729 |
|
* playbackstate.position = 0; |
730 |
|
* playbackstate.reverse = false; |
731 |
|
* playbackstate.loop_cycles_left = pSample->LoopPlayCount; |
732 |
|
* @endcode |
733 |
|
* You don't have to take care of things like if there is actually a loop |
734 |
|
* defined or if the current read position is located within a loop area. |
735 |
|
* The method already handles such cases by itself. |
736 |
|
* |
737 |
|
* <b>Caution:</b> If you are using more than one streaming thread, you |
738 |
|
* have to use an external decompression buffer for <b>EACH</b> |
739 |
|
* streaming thread to avoid race conditions and crashes! |
740 |
|
* |
741 |
|
* @param pBuffer destination buffer |
742 |
|
* @param SampleCount number of sample points to read |
743 |
|
* @param pPlaybackState will be used to store and reload the playback |
744 |
|
* state for the next ReadAndLoop() call |
745 |
|
* @param pExternalDecompressionBuffer (optional) external buffer to use for decompression |
746 |
|
* @returns number of successfully read sample points |
747 |
|
* @see CreateDecompressionBuffer() |
748 |
|
*/ |
749 |
|
unsigned long Sample::ReadAndLoop(void* pBuffer, unsigned long SampleCount, playback_state_t* pPlaybackState, buffer_t* pExternalDecompressionBuffer) { |
750 |
|
unsigned long samplestoread = SampleCount, totalreadsamples = 0, readsamples, samplestoloopend; |
751 |
|
uint8_t* pDst = (uint8_t*) pBuffer; |
752 |
|
|
753 |
|
SetPos(pPlaybackState->position); // recover position from the last time |
754 |
|
|
755 |
|
if (this->Loops && GetPos() <= this->LoopEnd) { // honor looping if there are loop points defined |
756 |
|
|
757 |
|
switch (this->LoopType) { |
758 |
|
|
759 |
|
case loop_type_bidirectional: { //TODO: not tested yet! |
760 |
|
do { |
761 |
|
// if not endless loop check if max. number of loop cycles have been passed |
762 |
|
if (this->LoopPlayCount && !pPlaybackState->loop_cycles_left) break; |
763 |
|
|
764 |
|
if (!pPlaybackState->reverse) { // forward playback |
765 |
|
do { |
766 |
|
samplestoloopend = this->LoopEnd - GetPos(); |
767 |
|
readsamples = Read(&pDst[totalreadsamples * this->FrameSize], Min(samplestoread, samplestoloopend), pExternalDecompressionBuffer); |
768 |
|
samplestoread -= readsamples; |
769 |
|
totalreadsamples += readsamples; |
770 |
|
if (readsamples == samplestoloopend) { |
771 |
|
pPlaybackState->reverse = true; |
772 |
|
break; |
773 |
|
} |
774 |
|
} while (samplestoread && readsamples); |
775 |
|
} |
776 |
|
else { // backward playback |
777 |
|
|
778 |
|
// as we can only read forward from disk, we have to |
779 |
|
// determine the end position within the loop first, |
780 |
|
// read forward from that 'end' and finally after |
781 |
|
// reading, swap all sample frames so it reflects |
782 |
|
// backward playback |
783 |
|
|
784 |
|
unsigned long swapareastart = totalreadsamples; |
785 |
|
unsigned long loopoffset = GetPos() - this->LoopStart; |
786 |
|
unsigned long samplestoreadinloop = Min(samplestoread, loopoffset); |
787 |
|
unsigned long reverseplaybackend = GetPos() - samplestoreadinloop; |
788 |
|
|
789 |
|
SetPos(reverseplaybackend); |
790 |
|
|
791 |
|
// read samples for backward playback |
792 |
|
do { |
793 |
|
readsamples = Read(&pDst[totalreadsamples * this->FrameSize], samplestoreadinloop, pExternalDecompressionBuffer); |
794 |
|
samplestoreadinloop -= readsamples; |
795 |
|
samplestoread -= readsamples; |
796 |
|
totalreadsamples += readsamples; |
797 |
|
} while (samplestoreadinloop && readsamples); |
798 |
|
|
799 |
|
SetPos(reverseplaybackend); // pretend we really read backwards |
800 |
|
|
801 |
|
if (reverseplaybackend == this->LoopStart) { |
802 |
|
pPlaybackState->loop_cycles_left--; |
803 |
|
pPlaybackState->reverse = false; |
804 |
|
} |
805 |
|
|
806 |
|
// reverse the sample frames for backward playback |
807 |
|
SwapMemoryArea(&pDst[swapareastart * this->FrameSize], (totalreadsamples - swapareastart) * this->FrameSize, this->FrameSize); |
808 |
|
} |
809 |
|
} while (samplestoread && readsamples); |
810 |
|
break; |
811 |
|
} |
812 |
|
|
813 |
|
case loop_type_backward: { // TODO: not tested yet! |
814 |
|
// forward playback (not entered the loop yet) |
815 |
|
if (!pPlaybackState->reverse) do { |
816 |
|
samplestoloopend = this->LoopEnd - GetPos(); |
817 |
|
readsamples = Read(&pDst[totalreadsamples * this->FrameSize], Min(samplestoread, samplestoloopend), pExternalDecompressionBuffer); |
818 |
|
samplestoread -= readsamples; |
819 |
|
totalreadsamples += readsamples; |
820 |
|
if (readsamples == samplestoloopend) { |
821 |
|
pPlaybackState->reverse = true; |
822 |
|
break; |
823 |
|
} |
824 |
|
} while (samplestoread && readsamples); |
825 |
|
|
826 |
|
if (!samplestoread) break; |
827 |
|
|
828 |
|
// as we can only read forward from disk, we have to |
829 |
|
// determine the end position within the loop first, |
830 |
|
// read forward from that 'end' and finally after |
831 |
|
// reading, swap all sample frames so it reflects |
832 |
|
// backward playback |
833 |
|
|
834 |
|
unsigned long swapareastart = totalreadsamples; |
835 |
|
unsigned long loopoffset = GetPos() - this->LoopStart; |
836 |
|
unsigned long samplestoreadinloop = (this->LoopPlayCount) ? Min(samplestoread, pPlaybackState->loop_cycles_left * LoopSize - loopoffset) |
837 |
|
: samplestoread; |
838 |
|
unsigned long reverseplaybackend = this->LoopStart + Abs((loopoffset - samplestoreadinloop) % this->LoopSize); |
839 |
|
|
840 |
|
SetPos(reverseplaybackend); |
841 |
|
|
842 |
|
// read samples for backward playback |
843 |
|
do { |
844 |
|
// if not endless loop check if max. number of loop cycles have been passed |
845 |
|
if (this->LoopPlayCount && !pPlaybackState->loop_cycles_left) break; |
846 |
|
samplestoloopend = this->LoopEnd - GetPos(); |
847 |
|
readsamples = Read(&pDst[totalreadsamples * this->FrameSize], Min(samplestoreadinloop, samplestoloopend), pExternalDecompressionBuffer); |
848 |
|
samplestoreadinloop -= readsamples; |
849 |
|
samplestoread -= readsamples; |
850 |
|
totalreadsamples += readsamples; |
851 |
|
if (readsamples == samplestoloopend) { |
852 |
|
pPlaybackState->loop_cycles_left--; |
853 |
|
SetPos(this->LoopStart); |
854 |
|
} |
855 |
|
} while (samplestoreadinloop && readsamples); |
856 |
|
|
857 |
|
SetPos(reverseplaybackend); // pretend we really read backwards |
858 |
|
|
859 |
|
// reverse the sample frames for backward playback |
860 |
|
SwapMemoryArea(&pDst[swapareastart * this->FrameSize], (totalreadsamples - swapareastart) * this->FrameSize, this->FrameSize); |
861 |
|
break; |
862 |
|
} |
863 |
|
|
864 |
|
default: case loop_type_normal: { |
865 |
|
do { |
866 |
|
// if not endless loop check if max. number of loop cycles have been passed |
867 |
|
if (this->LoopPlayCount && !pPlaybackState->loop_cycles_left) break; |
868 |
|
samplestoloopend = this->LoopEnd - GetPos(); |
869 |
|
readsamples = Read(&pDst[totalreadsamples * this->FrameSize], Min(samplestoread, samplestoloopend), pExternalDecompressionBuffer); |
870 |
|
samplestoread -= readsamples; |
871 |
|
totalreadsamples += readsamples; |
872 |
|
if (readsamples == samplestoloopend) { |
873 |
|
pPlaybackState->loop_cycles_left--; |
874 |
|
SetPos(this->LoopStart); |
875 |
|
} |
876 |
|
} while (samplestoread && readsamples); |
877 |
|
break; |
878 |
|
} |
879 |
|
} |
880 |
|
} |
881 |
|
|
882 |
|
// read on without looping |
883 |
|
if (samplestoread) do { |
884 |
|
readsamples = Read(&pDst[totalreadsamples * this->FrameSize], samplestoread, pExternalDecompressionBuffer); |
885 |
|
samplestoread -= readsamples; |
886 |
|
totalreadsamples += readsamples; |
887 |
|
} while (readsamples && samplestoread); |
888 |
|
|
889 |
|
// store current position |
890 |
|
pPlaybackState->position = GetPos(); |
891 |
|
|
892 |
|
return totalreadsamples; |
893 |
|
} |
894 |
|
|
895 |
|
/** |
896 |
* Reads \a SampleCount number of sample points from the current |
* Reads \a SampleCount number of sample points from the current |
897 |
* position into the buffer pointed by \a pBuffer and increments the |
* position into the buffer pointed by \a pBuffer and increments the |
898 |
* position within the sample. The sample wave stream will be |
* position within the sample. The sample wave stream will be |
900 |
* and <i>SetPos()</i> if you don't want to load the sample into RAM, |
* and <i>SetPos()</i> if you don't want to load the sample into RAM, |
901 |
* thus for disk streaming. |
* thus for disk streaming. |
902 |
* |
* |
903 |
|
* <b>Caution:</b> If you are using more than one streaming thread, you |
904 |
|
* have to use an external decompression buffer for <b>EACH</b> |
905 |
|
* streaming thread to avoid race conditions and crashes! |
906 |
|
* |
907 |
* @param pBuffer destination buffer |
* @param pBuffer destination buffer |
908 |
* @param SampleCount number of sample points to read |
* @param SampleCount number of sample points to read |
909 |
|
* @param pExternalDecompressionBuffer (optional) external buffer to use for decompression |
910 |
* @returns number of successfully read sample points |
* @returns number of successfully read sample points |
911 |
* @see SetPos() |
* @see SetPos(), CreateDecompressionBuffer() |
912 |
*/ |
*/ |
913 |
unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount) { |
unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount, buffer_t* pExternalDecompressionBuffer) { |
914 |
if (SampleCount == 0) return 0; |
if (SampleCount == 0) return 0; |
915 |
if (!Compressed) return pCkData->Read(pBuffer, SampleCount, FrameSize); //FIXME: channel inversion due to endian correction? |
if (!Compressed) { |
916 |
else { //FIXME: no support for mono compressed samples yet, are there any? |
if (BitDepth == 24) { |
917 |
|
// 24 bit sample. For now just truncate to 16 bit. |
918 |
|
unsigned char* pSrc = (unsigned char*) ((pExternalDecompressionBuffer) ? pExternalDecompressionBuffer->pStart : this->InternalDecompressionBuffer.pStart); |
919 |
|
int16_t* pDst = static_cast<int16_t*>(pBuffer); |
920 |
|
if (Channels == 2) { // Stereo |
921 |
|
unsigned long readBytes = pCkData->Read(pSrc, SampleCount * 6, 1); |
922 |
|
pSrc++; |
923 |
|
for (unsigned long i = readBytes ; i > 0 ; i -= 3) { |
924 |
|
*pDst++ = get16(pSrc); |
925 |
|
pSrc += 3; |
926 |
|
} |
927 |
|
return (pDst - static_cast<int16_t*>(pBuffer)) >> 1; |
928 |
|
} |
929 |
|
else { // Mono |
930 |
|
unsigned long readBytes = pCkData->Read(pSrc, SampleCount * 3, 1); |
931 |
|
pSrc++; |
932 |
|
for (unsigned long i = readBytes ; i > 0 ; i -= 3) { |
933 |
|
*pDst++ = get16(pSrc); |
934 |
|
pSrc += 3; |
935 |
|
} |
936 |
|
return pDst - static_cast<int16_t*>(pBuffer); |
937 |
|
} |
938 |
|
} |
939 |
|
else { // 16 bit |
940 |
|
// (pCkData->Read does endian correction) |
941 |
|
return Channels == 2 ? pCkData->Read(pBuffer, SampleCount << 1, 2) >> 1 |
942 |
|
: pCkData->Read(pBuffer, SampleCount, 2); |
943 |
|
} |
944 |
|
} |
945 |
|
else { |
946 |
if (this->SamplePos >= this->SamplesTotal) return 0; |
if (this->SamplePos >= this->SamplesTotal) return 0; |
947 |
//TODO: efficiency: we simply assume here that all frames are compressed, maybe we should test for an average compression rate |
//TODO: efficiency: maybe we should test for an average compression rate |
948 |
// best case needed buffer size (all frames compressed) |
unsigned long assumedsize = GuessSize(SampleCount), |
|
unsigned long assumedsize = (SampleCount << 1) + // *2 (16 Bit, stereo, but assume all frames compressed) |
|
|
(SampleCount >> 10) + // 10 bytes header per 2048 sample points |
|
|
8194, // at least one worst case sample frame |
|
949 |
remainingbytes = 0, // remaining bytes in the local buffer |
remainingbytes = 0, // remaining bytes in the local buffer |
950 |
remainingsamples = SampleCount, |
remainingsamples = SampleCount, |
951 |
copysamples; |
copysamples, skipsamples, |
952 |
int currentframeoffset = this->FrameOffset; // offset in current sample frame since last Read() |
currentframeoffset = this->FrameOffset; // offset in current sample frame since last Read() |
953 |
this->FrameOffset = 0; |
this->FrameOffset = 0; |
954 |
|
|
955 |
if (assumedsize > this->DecompressionBufferSize) { |
buffer_t* pDecompressionBuffer = (pExternalDecompressionBuffer) ? pExternalDecompressionBuffer : &InternalDecompressionBuffer; |
956 |
// local buffer reallocation - hope this won't happen |
|
957 |
if (this->pDecompressionBuffer) delete[] (int8_t*) this->pDecompressionBuffer; |
// if decompression buffer too small, then reduce amount of samples to read |
958 |
this->pDecompressionBuffer = new int8_t[assumedsize << 1]; // double of current needed size |
if (pDecompressionBuffer->Size < assumedsize) { |
959 |
this->DecompressionBufferSize = assumedsize; |
std::cerr << "gig::Read(): WARNING - decompression buffer size too small!" << std::endl; |
960 |
|
SampleCount = WorstCaseMaxSamples(pDecompressionBuffer); |
961 |
|
remainingsamples = SampleCount; |
962 |
|
assumedsize = GuessSize(SampleCount); |
963 |
} |
} |
964 |
|
|
965 |
int16_t compressionmode, left, dleft, right, dright; |
unsigned char* pSrc = (unsigned char*) pDecompressionBuffer->pStart; |
966 |
int8_t* pSrc = (int8_t*) this->pDecompressionBuffer; |
int16_t* pDst = static_cast<int16_t*>(pBuffer); |
|
int16_t* pDst = (int16_t*) pBuffer; |
|
967 |
remainingbytes = pCkData->Read(pSrc, assumedsize, 1); |
remainingbytes = pCkData->Read(pSrc, assumedsize, 1); |
968 |
|
|
969 |
while (remainingsamples) { |
while (remainingsamples && remainingbytes) { |
970 |
|
unsigned long framesamples = SamplesPerFrame; |
971 |
// reload from disk to local buffer if needed |
unsigned long framebytes, rightChannelOffset = 0, nextFrameOffset; |
972 |
if (remainingbytes < 8194) { |
|
973 |
if (pCkData->GetState() != RIFF::stream_ready) { |
int mode_l = *pSrc++, mode_r = 0; |
974 |
this->SamplePos = this->SamplesTotal; |
|
975 |
return (SampleCount - remainingsamples); |
if (Channels == 2) { |
976 |
|
mode_r = *pSrc++; |
977 |
|
framebytes = bytesPerFrame[mode_l] + bytesPerFrame[mode_r] + 2; |
978 |
|
rightChannelOffset = bytesPerFrameNoHdr[mode_l]; |
979 |
|
nextFrameOffset = rightChannelOffset + bytesPerFrameNoHdr[mode_r]; |
980 |
|
if (remainingbytes < framebytes) { // last frame in sample |
981 |
|
framesamples = SamplesInLastFrame; |
982 |
|
if (mode_l == 4 && (framesamples & 1)) { |
983 |
|
rightChannelOffset = ((framesamples + 1) * bitsPerSample[mode_l]) >> 3; |
984 |
|
} |
985 |
|
else { |
986 |
|
rightChannelOffset = (framesamples * bitsPerSample[mode_l]) >> 3; |
987 |
|
} |
988 |
|
} |
989 |
|
} |
990 |
|
else { |
991 |
|
framebytes = bytesPerFrame[mode_l] + 1; |
992 |
|
nextFrameOffset = bytesPerFrameNoHdr[mode_l]; |
993 |
|
if (remainingbytes < framebytes) { |
994 |
|
framesamples = SamplesInLastFrame; |
995 |
} |
} |
|
assumedsize = remainingsamples; |
|
|
assumedsize = (assumedsize << 1) + // *2 (16 Bit, stereo, but assume all frames compressed) |
|
|
(assumedsize >> 10) + // 10 bytes header per 2048 sample points |
|
|
8194; // at least one worst case sample frame |
|
|
pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
|
|
if (pCkData->RemainingBytes() < assumedsize) assumedsize = pCkData->RemainingBytes(); |
|
|
remainingbytes = pCkData->Read(this->pDecompressionBuffer, assumedsize, 1); |
|
|
pSrc = (int8_t*) this->pDecompressionBuffer; |
|
996 |
} |
} |
997 |
|
|
998 |
// determine how many samples in this frame to skip and read |
// determine how many samples in this frame to skip and read |
999 |
if (remainingsamples >= 2048) { |
if (currentframeoffset + remainingsamples >= framesamples) { |
1000 |
copysamples = 2048 - currentframeoffset; |
if (currentframeoffset <= framesamples) { |
1001 |
remainingsamples -= copysamples; |
copysamples = framesamples - currentframeoffset; |
1002 |
|
skipsamples = currentframeoffset; |
1003 |
|
} |
1004 |
|
else { |
1005 |
|
copysamples = 0; |
1006 |
|
skipsamples = framesamples; |
1007 |
|
} |
1008 |
} |
} |
1009 |
else { |
else { |
1010 |
|
// This frame has enough data for pBuffer, but not |
1011 |
|
// all of the frame is needed. Set file position |
1012 |
|
// to start of this frame for next call to Read. |
1013 |
copysamples = remainingsamples; |
copysamples = remainingsamples; |
1014 |
if (currentframeoffset + copysamples > 2048) { |
skipsamples = currentframeoffset; |
1015 |
copysamples = 2048 - currentframeoffset; |
pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
1016 |
remainingsamples -= copysamples; |
this->FrameOffset = currentframeoffset + copysamples; |
1017 |
} |
} |
1018 |
else { |
remainingsamples -= copysamples; |
1019 |
|
|
1020 |
|
if (remainingbytes > framebytes) { |
1021 |
|
remainingbytes -= framebytes; |
1022 |
|
if (remainingsamples == 0 && |
1023 |
|
currentframeoffset + copysamples == framesamples) { |
1024 |
|
// This frame has enough data for pBuffer, and |
1025 |
|
// all of the frame is needed. Set file |
1026 |
|
// position to start of next frame for next |
1027 |
|
// call to Read. FrameOffset is 0. |
1028 |
pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
|
remainingsamples = 0; |
|
|
this->FrameOffset = currentframeoffset + copysamples; |
|
1029 |
} |
} |
1030 |
} |
} |
1031 |
|
else remainingbytes = 0; |
1032 |
|
|
1033 |
// decompress and copy current frame from local buffer to destination buffer |
currentframeoffset -= skipsamples; |
1034 |
compressionmode = *(int16_t*)pSrc; pSrc+=2; |
|
1035 |
switch (compressionmode) { |
if (copysamples == 0) { |
1036 |
case 1: // left channel compressed |
// skip this frame |
1037 |
remainingbytes -= 6150; // (left 8 bit, right 16 bit, +6 byte header) |
pSrc += framebytes - Channels; |
1038 |
if (!remainingsamples && copysamples == 2048) |
} |
1039 |
pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
else { |
1040 |
|
const unsigned char* const param_l = pSrc; |
1041 |
left = *(int16_t*)pSrc; pSrc+=2; |
if (BitDepth == 24) { |
1042 |
dleft = *(int16_t*)pSrc; pSrc+=2; |
if (mode_l != 2) pSrc += 12; |
1043 |
while (currentframeoffset) { |
|
1044 |
dleft -= *pSrc; |
if (Channels == 2) { // Stereo |
1045 |
left -= dleft; |
const unsigned char* const param_r = pSrc; |
1046 |
pSrc+=3; // 8 bit left channel, skip uncompressed right channel (16 bit) |
if (mode_r != 2) pSrc += 12; |
1047 |
currentframeoffset--; |
|
1048 |
} |
Decompress24(mode_l, param_l, 2, pSrc, pDst, |
1049 |
while (copysamples) { |
skipsamples, copysamples, TruncatedBits); |
1050 |
dleft -= *pSrc; pSrc++; |
Decompress24(mode_r, param_r, 2, pSrc + rightChannelOffset, pDst + 1, |
1051 |
left -= dleft; |
skipsamples, copysamples, TruncatedBits); |
1052 |
*pDst = left; pDst++; |
pDst += copysamples << 1; |
|
*pDst = *(int16_t*)pSrc; pDst++; pSrc+=2; |
|
|
copysamples--; |
|
|
} |
|
|
break; |
|
|
case 256: // right channel compressed |
|
|
remainingbytes -= 6150; // (left 16 bit, right 8 bit, +6 byte header) |
|
|
if (!remainingsamples && copysamples == 2048) |
|
|
pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
|
|
|
|
|
right = *(int16_t*)pSrc; pSrc+=2; |
|
|
dright = *(int16_t*)pSrc; pSrc+=2; |
|
|
if (currentframeoffset) { |
|
|
pSrc+=2; // skip uncompressed left channel, now we can increment by 3 |
|
|
while (currentframeoffset) { |
|
|
dright -= *pSrc; |
|
|
right -= dright; |
|
|
pSrc+=3; // 8 bit right channel, skip uncompressed left channel (16 bit) |
|
|
currentframeoffset--; |
|
|
} |
|
|
pSrc-=2; // back aligned to left channel |
|
1053 |
} |
} |
1054 |
while (copysamples) { |
else { // Mono |
1055 |
*pDst = *(int16_t*)pSrc; pDst++; pSrc+=2; |
Decompress24(mode_l, param_l, 1, pSrc, pDst, |
1056 |
dright -= *pSrc; pSrc++; |
skipsamples, copysamples, TruncatedBits); |
1057 |
right -= dright; |
pDst += copysamples; |
|
*pDst = right; pDst++; |
|
|
copysamples--; |
|
1058 |
} |
} |
1059 |
break; |
} |
1060 |
case 257: // both channels compressed |
else { // 16 bit |
1061 |
remainingbytes -= 4106; // (left 8 bit, right 8 bit, +10 byte header) |
if (mode_l) pSrc += 4; |
1062 |
if (!remainingsamples && copysamples == 2048) |
|
1063 |
pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
int step; |
1064 |
|
if (Channels == 2) { // Stereo |
1065 |
left = *(int16_t*)pSrc; pSrc+=2; |
const unsigned char* const param_r = pSrc; |
1066 |
dleft = *(int16_t*)pSrc; pSrc+=2; |
if (mode_r) pSrc += 4; |
1067 |
right = *(int16_t*)pSrc; pSrc+=2; |
|
1068 |
dright = *(int16_t*)pSrc; pSrc+=2; |
step = (2 - mode_l) + (2 - mode_r); |
1069 |
while (currentframeoffset) { |
Decompress16(mode_l, param_l, step, 2, pSrc, pDst, skipsamples, copysamples); |
1070 |
dleft -= *pSrc; pSrc++; |
Decompress16(mode_r, param_r, step, 2, pSrc + (2 - mode_l), pDst + 1, |
1071 |
left -= dleft; |
skipsamples, copysamples); |
1072 |
dright -= *pSrc; pSrc++; |
pDst += copysamples << 1; |
|
right -= dright; |
|
|
currentframeoffset--; |
|
1073 |
} |
} |
1074 |
while (copysamples) { |
else { // Mono |
1075 |
dleft -= *pSrc; pSrc++; |
step = 2 - mode_l; |
1076 |
left -= dleft; |
Decompress16(mode_l, param_l, step, 1, pSrc, pDst, skipsamples, copysamples); |
1077 |
dright -= *pSrc; pSrc++; |
pDst += copysamples; |
|
right -= dright; |
|
|
*pDst = left; pDst++; |
|
|
*pDst = right; pDst++; |
|
|
copysamples--; |
|
1078 |
} |
} |
1079 |
break; |
} |
1080 |
default: // both channels uncompressed |
pSrc += nextFrameOffset; |
|
remainingbytes -= 8194; // (left 16 bit, right 16 bit, +2 byte header) |
|
|
if (!remainingsamples && copysamples == 2048) |
|
|
pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
|
|
|
|
|
pSrc += currentframeoffset << 2; |
|
|
currentframeoffset = 0; |
|
|
memcpy(pDst, pSrc, copysamples << 2); |
|
|
pDst += copysamples << 1; |
|
|
pSrc += copysamples << 2; |
|
|
break; |
|
1081 |
} |
} |
1082 |
} |
|
1083 |
|
// reload from disk to local buffer if needed |
1084 |
|
if (remainingsamples && remainingbytes < WorstCaseFrameSize && pCkData->GetState() == RIFF::stream_ready) { |
1085 |
|
assumedsize = GuessSize(remainingsamples); |
1086 |
|
pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
1087 |
|
if (pCkData->RemainingBytes() < assumedsize) assumedsize = pCkData->RemainingBytes(); |
1088 |
|
remainingbytes = pCkData->Read(pDecompressionBuffer->pStart, assumedsize, 1); |
1089 |
|
pSrc = (unsigned char*) pDecompressionBuffer->pStart; |
1090 |
|
} |
1091 |
|
} // while |
1092 |
|
|
1093 |
this->SamplePos += (SampleCount - remainingsamples); |
this->SamplePos += (SampleCount - remainingsamples); |
1094 |
if (this->SamplePos > this->SamplesTotal) this->SamplePos = this->SamplesTotal; |
if (this->SamplePos > this->SamplesTotal) this->SamplePos = this->SamplesTotal; |
1095 |
return (SampleCount - remainingsamples); |
return (SampleCount - remainingsamples); |
1096 |
} |
} |
1097 |
} |
} |
1098 |
|
|
1099 |
|
/** @brief Write sample wave data. |
1100 |
|
* |
1101 |
|
* Writes \a SampleCount number of sample points from the buffer pointed |
1102 |
|
* by \a pBuffer and increments the position within the sample. Use this |
1103 |
|
* method to directly write the sample data to disk, i.e. if you don't |
1104 |
|
* want or cannot load the whole sample data into RAM. |
1105 |
|
* |
1106 |
|
* You have to Resize() the sample to the desired size and call |
1107 |
|
* File::Save() <b>before</b> using Write(). |
1108 |
|
* |
1109 |
|
* Note: there is currently no support for writing compressed samples. |
1110 |
|
* |
1111 |
|
* @param pBuffer - source buffer |
1112 |
|
* @param SampleCount - number of sample points to write |
1113 |
|
* @throws DLS::Exception if current sample size is too small |
1114 |
|
* @throws gig::Exception if sample is compressed |
1115 |
|
* @see DLS::LoadSampleData() |
1116 |
|
*/ |
1117 |
|
unsigned long Sample::Write(void* pBuffer, unsigned long SampleCount) { |
1118 |
|
if (Compressed) throw gig::Exception("There is no support for writing compressed gig samples (yet)"); |
1119 |
|
return DLS::Sample::Write(pBuffer, SampleCount); |
1120 |
|
} |
1121 |
|
|
1122 |
|
/** |
1123 |
|
* Allocates a decompression buffer for streaming (compressed) samples |
1124 |
|
* with Sample::Read(). If you are using more than one streaming thread |
1125 |
|
* in your application you <b>HAVE</b> to create a decompression buffer |
1126 |
|
* for <b>EACH</b> of your streaming threads and provide it with the |
1127 |
|
* Sample::Read() call in order to avoid race conditions and crashes. |
1128 |
|
* |
1129 |
|
* You should free the memory occupied by the allocated buffer(s) once |
1130 |
|
* you don't need one of your streaming threads anymore by calling |
1131 |
|
* DestroyDecompressionBuffer(). |
1132 |
|
* |
1133 |
|
* @param MaxReadSize - the maximum size (in sample points) you ever |
1134 |
|
* expect to read with one Read() call |
1135 |
|
* @returns allocated decompression buffer |
1136 |
|
* @see DestroyDecompressionBuffer() |
1137 |
|
*/ |
1138 |
|
buffer_t Sample::CreateDecompressionBuffer(unsigned long MaxReadSize) { |
1139 |
|
buffer_t result; |
1140 |
|
const double worstCaseHeaderOverhead = |
1141 |
|
(256.0 /*frame size*/ + 12.0 /*header*/ + 2.0 /*compression type flag (stereo)*/) / 256.0; |
1142 |
|
result.Size = (unsigned long) (double(MaxReadSize) * 3.0 /*(24 Bit)*/ * 2.0 /*stereo*/ * worstCaseHeaderOverhead); |
1143 |
|
result.pStart = new int8_t[result.Size]; |
1144 |
|
result.NullExtensionSize = 0; |
1145 |
|
return result; |
1146 |
|
} |
1147 |
|
|
1148 |
|
/** |
1149 |
|
* Free decompression buffer, previously created with |
1150 |
|
* CreateDecompressionBuffer(). |
1151 |
|
* |
1152 |
|
* @param DecompressionBuffer - previously allocated decompression |
1153 |
|
* buffer to free |
1154 |
|
*/ |
1155 |
|
void Sample::DestroyDecompressionBuffer(buffer_t& DecompressionBuffer) { |
1156 |
|
if (DecompressionBuffer.Size && DecompressionBuffer.pStart) { |
1157 |
|
delete[] (int8_t*) DecompressionBuffer.pStart; |
1158 |
|
DecompressionBuffer.pStart = NULL; |
1159 |
|
DecompressionBuffer.Size = 0; |
1160 |
|
DecompressionBuffer.NullExtensionSize = 0; |
1161 |
|
} |
1162 |
|
} |
1163 |
|
|
1164 |
Sample::~Sample() { |
Sample::~Sample() { |
1165 |
Instances--; |
Instances--; |
1166 |
if (!Instances && pDecompressionBuffer) delete[] (int8_t*) pDecompressionBuffer; |
if (!Instances && InternalDecompressionBuffer.Size) { |
1167 |
|
delete[] (unsigned char*) InternalDecompressionBuffer.pStart; |
1168 |
|
InternalDecompressionBuffer.pStart = NULL; |
1169 |
|
InternalDecompressionBuffer.Size = 0; |
1170 |
|
} |
1171 |
if (FrameTable) delete[] FrameTable; |
if (FrameTable) delete[] FrameTable; |
1172 |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
1173 |
} |
} |
1187 |
if (!pVelocityTables) pVelocityTables = new VelocityTableMap; |
if (!pVelocityTables) pVelocityTables = new VelocityTableMap; |
1188 |
|
|
1189 |
RIFF::Chunk* _3ewa = _3ewl->GetSubChunk(CHUNK_ID_3EWA); |
RIFF::Chunk* _3ewa = _3ewl->GetSubChunk(CHUNK_ID_3EWA); |
1190 |
_3ewa->ReadInt32(); // unknown, allways 0x0000008C ? |
if (_3ewa) { // if '3ewa' chunk exists |
1191 |
LFO3Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
_3ewa->ReadInt32(); // unknown, always 0x0000008C ? |
1192 |
EG3Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
LFO3Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1193 |
_3ewa->ReadInt16(); // unknown |
EG3Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1194 |
LFO1InternalDepth = _3ewa->ReadUint16(); |
_3ewa->ReadInt16(); // unknown |
1195 |
_3ewa->ReadInt16(); // unknown |
LFO1InternalDepth = _3ewa->ReadUint16(); |
1196 |
LFO3InternalDepth = _3ewa->ReadInt16(); |
_3ewa->ReadInt16(); // unknown |
1197 |
_3ewa->ReadInt16(); // unknown |
LFO3InternalDepth = _3ewa->ReadInt16(); |
1198 |
LFO1ControlDepth = _3ewa->ReadUint16(); |
_3ewa->ReadInt16(); // unknown |
1199 |
_3ewa->ReadInt16(); // unknown |
LFO1ControlDepth = _3ewa->ReadUint16(); |
1200 |
LFO3ControlDepth = _3ewa->ReadInt16(); |
_3ewa->ReadInt16(); // unknown |
1201 |
EG1Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
LFO3ControlDepth = _3ewa->ReadInt16(); |
1202 |
EG1Decay1 = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
EG1Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1203 |
_3ewa->ReadInt16(); // unknown |
EG1Decay1 = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1204 |
EG1Sustain = _3ewa->ReadUint16(); |
_3ewa->ReadInt16(); // unknown |
1205 |
EG1Release = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
EG1Sustain = _3ewa->ReadUint16(); |
1206 |
EG1Controller = static_cast<eg1_ctrl_t>(_3ewa->ReadUint8()); |
EG1Release = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1207 |
uint8_t eg1ctrloptions = _3ewa->ReadUint8(); |
EG1Controller = DecodeLeverageController(static_cast<_lev_ctrl_t>(_3ewa->ReadUint8())); |
1208 |
EG1ControllerInvert = eg1ctrloptions & 0x01; |
uint8_t eg1ctrloptions = _3ewa->ReadUint8(); |
1209 |
EG1ControllerAttackInfluence = GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(eg1ctrloptions); |
EG1ControllerInvert = eg1ctrloptions & 0x01; |
1210 |
EG1ControllerDecayInfluence = GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(eg1ctrloptions); |
EG1ControllerAttackInfluence = GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(eg1ctrloptions); |
1211 |
EG1ControllerReleaseInfluence = GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(eg1ctrloptions); |
EG1ControllerDecayInfluence = GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(eg1ctrloptions); |
1212 |
EG2Controller = static_cast<eg2_ctrl_t>(_3ewa->ReadUint8()); |
EG1ControllerReleaseInfluence = GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(eg1ctrloptions); |
1213 |
uint8_t eg2ctrloptions = _3ewa->ReadUint8(); |
EG2Controller = DecodeLeverageController(static_cast<_lev_ctrl_t>(_3ewa->ReadUint8())); |
1214 |
EG2ControllerInvert = eg2ctrloptions & 0x01; |
uint8_t eg2ctrloptions = _3ewa->ReadUint8(); |
1215 |
EG2ControllerAttackInfluence = GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(eg2ctrloptions); |
EG2ControllerInvert = eg2ctrloptions & 0x01; |
1216 |
EG2ControllerDecayInfluence = GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(eg2ctrloptions); |
EG2ControllerAttackInfluence = GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(eg2ctrloptions); |
1217 |
EG2ControllerReleaseInfluence = GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(eg2ctrloptions); |
EG2ControllerDecayInfluence = GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(eg2ctrloptions); |
1218 |
LFO1Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
EG2ControllerReleaseInfluence = GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(eg2ctrloptions); |
1219 |
EG2Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
LFO1Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1220 |
EG2Decay1 = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
EG2Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1221 |
_3ewa->ReadInt16(); // unknown |
EG2Decay1 = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1222 |
EG2Sustain = _3ewa->ReadUint16(); |
_3ewa->ReadInt16(); // unknown |
1223 |
EG2Release = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
EG2Sustain = _3ewa->ReadUint16(); |
1224 |
_3ewa->ReadInt16(); // unknown |
EG2Release = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1225 |
LFO2ControlDepth = _3ewa->ReadUint16(); |
_3ewa->ReadInt16(); // unknown |
1226 |
LFO2Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
LFO2ControlDepth = _3ewa->ReadUint16(); |
1227 |
_3ewa->ReadInt16(); // unknown |
LFO2Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1228 |
LFO2InternalDepth = _3ewa->ReadUint16(); |
_3ewa->ReadInt16(); // unknown |
1229 |
int32_t eg1decay2 = _3ewa->ReadInt32(); |
LFO2InternalDepth = _3ewa->ReadUint16(); |
1230 |
EG1Decay2 = (double) GIG_EXP_DECODE(eg1decay2); |
int32_t eg1decay2 = _3ewa->ReadInt32(); |
1231 |
EG1InfiniteSustain = (eg1decay2 == 0x7fffffff); |
EG1Decay2 = (double) GIG_EXP_DECODE(eg1decay2); |
1232 |
_3ewa->ReadInt16(); // unknown |
EG1InfiniteSustain = (eg1decay2 == 0x7fffffff); |
1233 |
EG1PreAttack = _3ewa->ReadUint16(); |
_3ewa->ReadInt16(); // unknown |
1234 |
int32_t eg2decay2 = _3ewa->ReadInt32(); |
EG1PreAttack = _3ewa->ReadUint16(); |
1235 |
EG2Decay2 = (double) GIG_EXP_DECODE(eg2decay2); |
int32_t eg2decay2 = _3ewa->ReadInt32(); |
1236 |
EG2InfiniteSustain = (eg2decay2 == 0x7fffffff); |
EG2Decay2 = (double) GIG_EXP_DECODE(eg2decay2); |
1237 |
_3ewa->ReadInt16(); // unknown |
EG2InfiniteSustain = (eg2decay2 == 0x7fffffff); |
1238 |
EG2PreAttack = _3ewa->ReadUint16(); |
_3ewa->ReadInt16(); // unknown |
1239 |
uint8_t velocityresponse = _3ewa->ReadUint8(); |
EG2PreAttack = _3ewa->ReadUint16(); |
1240 |
if (velocityresponse < 5) { |
uint8_t velocityresponse = _3ewa->ReadUint8(); |
1241 |
VelocityResponseCurve = curve_type_nonlinear; |
if (velocityresponse < 5) { |
1242 |
VelocityResponseDepth = velocityresponse; |
VelocityResponseCurve = curve_type_nonlinear; |
1243 |
} |
VelocityResponseDepth = velocityresponse; |
1244 |
else if (velocityresponse < 10) { |
} else if (velocityresponse < 10) { |
1245 |
VelocityResponseCurve = curve_type_linear; |
VelocityResponseCurve = curve_type_linear; |
1246 |
VelocityResponseDepth = velocityresponse - 5; |
VelocityResponseDepth = velocityresponse - 5; |
1247 |
} |
} else if (velocityresponse < 15) { |
1248 |
else if (velocityresponse < 15) { |
VelocityResponseCurve = curve_type_special; |
1249 |
VelocityResponseCurve = curve_type_special; |
VelocityResponseDepth = velocityresponse - 10; |
1250 |
VelocityResponseDepth = velocityresponse - 10; |
} else { |
1251 |
} |
VelocityResponseCurve = curve_type_unknown; |
1252 |
else { |
VelocityResponseDepth = 0; |
1253 |
VelocityResponseCurve = curve_type_unknown; |
} |
1254 |
VelocityResponseDepth = 0; |
uint8_t releasevelocityresponse = _3ewa->ReadUint8(); |
1255 |
} |
if (releasevelocityresponse < 5) { |
1256 |
uint8_t releasevelocityresponse = _3ewa->ReadUint8(); |
ReleaseVelocityResponseCurve = curve_type_nonlinear; |
1257 |
if (releasevelocityresponse < 5) { |
ReleaseVelocityResponseDepth = releasevelocityresponse; |
1258 |
ReleaseVelocityResponseCurve = curve_type_nonlinear; |
} else if (releasevelocityresponse < 10) { |
1259 |
ReleaseVelocityResponseDepth = releasevelocityresponse; |
ReleaseVelocityResponseCurve = curve_type_linear; |
1260 |
} |
ReleaseVelocityResponseDepth = releasevelocityresponse - 5; |
1261 |
else if (releasevelocityresponse < 10) { |
} else if (releasevelocityresponse < 15) { |
1262 |
ReleaseVelocityResponseCurve = curve_type_linear; |
ReleaseVelocityResponseCurve = curve_type_special; |
1263 |
ReleaseVelocityResponseDepth = releasevelocityresponse - 5; |
ReleaseVelocityResponseDepth = releasevelocityresponse - 10; |
1264 |
} |
} else { |
1265 |
else if (releasevelocityresponse < 15) { |
ReleaseVelocityResponseCurve = curve_type_unknown; |
1266 |
ReleaseVelocityResponseCurve = curve_type_special; |
ReleaseVelocityResponseDepth = 0; |
1267 |
ReleaseVelocityResponseDepth = releasevelocityresponse - 10; |
} |
1268 |
} |
VelocityResponseCurveScaling = _3ewa->ReadUint8(); |
1269 |
else { |
AttenuationControllerThreshold = _3ewa->ReadInt8(); |
1270 |
ReleaseVelocityResponseCurve = curve_type_unknown; |
_3ewa->ReadInt32(); // unknown |
1271 |
ReleaseVelocityResponseDepth = 0; |
SampleStartOffset = (uint16_t) _3ewa->ReadInt16(); |
1272 |
|
_3ewa->ReadInt16(); // unknown |
1273 |
|
uint8_t pitchTrackDimensionBypass = _3ewa->ReadInt8(); |
1274 |
|
PitchTrack = GIG_PITCH_TRACK_EXTRACT(pitchTrackDimensionBypass); |
1275 |
|
if (pitchTrackDimensionBypass & 0x10) DimensionBypass = dim_bypass_ctrl_94; |
1276 |
|
else if (pitchTrackDimensionBypass & 0x20) DimensionBypass = dim_bypass_ctrl_95; |
1277 |
|
else DimensionBypass = dim_bypass_ctrl_none; |
1278 |
|
uint8_t pan = _3ewa->ReadUint8(); |
1279 |
|
Pan = (pan < 64) ? pan : -((int)pan - 63); // signed 7 bit -> signed 8 bit |
1280 |
|
SelfMask = _3ewa->ReadInt8() & 0x01; |
1281 |
|
_3ewa->ReadInt8(); // unknown |
1282 |
|
uint8_t lfo3ctrl = _3ewa->ReadUint8(); |
1283 |
|
LFO3Controller = static_cast<lfo3_ctrl_t>(lfo3ctrl & 0x07); // lower 3 bits |
1284 |
|
LFO3Sync = lfo3ctrl & 0x20; // bit 5 |
1285 |
|
InvertAttenuationController = lfo3ctrl & 0x80; // bit 7 |
1286 |
|
AttenuationController = DecodeLeverageController(static_cast<_lev_ctrl_t>(_3ewa->ReadUint8())); |
1287 |
|
uint8_t lfo2ctrl = _3ewa->ReadUint8(); |
1288 |
|
LFO2Controller = static_cast<lfo2_ctrl_t>(lfo2ctrl & 0x07); // lower 3 bits |
1289 |
|
LFO2FlipPhase = lfo2ctrl & 0x80; // bit 7 |
1290 |
|
LFO2Sync = lfo2ctrl & 0x20; // bit 5 |
1291 |
|
bool extResonanceCtrl = lfo2ctrl & 0x40; // bit 6 |
1292 |
|
uint8_t lfo1ctrl = _3ewa->ReadUint8(); |
1293 |
|
LFO1Controller = static_cast<lfo1_ctrl_t>(lfo1ctrl & 0x07); // lower 3 bits |
1294 |
|
LFO1FlipPhase = lfo1ctrl & 0x80; // bit 7 |
1295 |
|
LFO1Sync = lfo1ctrl & 0x40; // bit 6 |
1296 |
|
VCFResonanceController = (extResonanceCtrl) ? static_cast<vcf_res_ctrl_t>(GIG_VCF_RESONANCE_CTRL_EXTRACT(lfo1ctrl)) |
1297 |
|
: vcf_res_ctrl_none; |
1298 |
|
uint16_t eg3depth = _3ewa->ReadUint16(); |
1299 |
|
EG3Depth = (eg3depth <= 1200) ? eg3depth /* positives */ |
1300 |
|
: (-1) * (int16_t) ((eg3depth ^ 0xffff) + 1); /* binary complementary for negatives */ |
1301 |
|
_3ewa->ReadInt16(); // unknown |
1302 |
|
ChannelOffset = _3ewa->ReadUint8() / 4; |
1303 |
|
uint8_t regoptions = _3ewa->ReadUint8(); |
1304 |
|
MSDecode = regoptions & 0x01; // bit 0 |
1305 |
|
SustainDefeat = regoptions & 0x02; // bit 1 |
1306 |
|
_3ewa->ReadInt16(); // unknown |
1307 |
|
VelocityUpperLimit = _3ewa->ReadInt8(); |
1308 |
|
_3ewa->ReadInt8(); // unknown |
1309 |
|
_3ewa->ReadInt16(); // unknown |
1310 |
|
ReleaseTriggerDecay = _3ewa->ReadUint8(); // release trigger decay |
1311 |
|
_3ewa->ReadInt8(); // unknown |
1312 |
|
_3ewa->ReadInt8(); // unknown |
1313 |
|
EG1Hold = _3ewa->ReadUint8() & 0x80; // bit 7 |
1314 |
|
uint8_t vcfcutoff = _3ewa->ReadUint8(); |
1315 |
|
VCFEnabled = vcfcutoff & 0x80; // bit 7 |
1316 |
|
VCFCutoff = vcfcutoff & 0x7f; // lower 7 bits |
1317 |
|
VCFCutoffController = static_cast<vcf_cutoff_ctrl_t>(_3ewa->ReadUint8()); |
1318 |
|
uint8_t vcfvelscale = _3ewa->ReadUint8(); |
1319 |
|
VCFCutoffControllerInvert = vcfvelscale & 0x80; // bit 7 |
1320 |
|
VCFVelocityScale = vcfvelscale & 0x7f; // lower 7 bits |
1321 |
|
_3ewa->ReadInt8(); // unknown |
1322 |
|
uint8_t vcfresonance = _3ewa->ReadUint8(); |
1323 |
|
VCFResonance = vcfresonance & 0x7f; // lower 7 bits |
1324 |
|
VCFResonanceDynamic = !(vcfresonance & 0x80); // bit 7 |
1325 |
|
uint8_t vcfbreakpoint = _3ewa->ReadUint8(); |
1326 |
|
VCFKeyboardTracking = vcfbreakpoint & 0x80; // bit 7 |
1327 |
|
VCFKeyboardTrackingBreakpoint = vcfbreakpoint & 0x7f; // lower 7 bits |
1328 |
|
uint8_t vcfvelocity = _3ewa->ReadUint8(); |
1329 |
|
VCFVelocityDynamicRange = vcfvelocity % 5; |
1330 |
|
VCFVelocityCurve = static_cast<curve_type_t>(vcfvelocity / 5); |
1331 |
|
VCFType = static_cast<vcf_type_t>(_3ewa->ReadUint8()); |
1332 |
|
if (VCFType == vcf_type_lowpass) { |
1333 |
|
if (lfo3ctrl & 0x40) // bit 6 |
1334 |
|
VCFType = vcf_type_lowpassturbo; |
1335 |
|
} |
1336 |
|
} else { // '3ewa' chunk does not exist yet |
1337 |
|
// use default values |
1338 |
|
LFO3Frequency = 1.0; |
1339 |
|
EG3Attack = 0.0; |
1340 |
|
LFO1InternalDepth = 0; |
1341 |
|
LFO3InternalDepth = 0; |
1342 |
|
LFO1ControlDepth = 0; |
1343 |
|
LFO3ControlDepth = 0; |
1344 |
|
EG1Attack = 0.0; |
1345 |
|
EG1Decay1 = 0.0; |
1346 |
|
EG1Sustain = 0; |
1347 |
|
EG1Release = 0.0; |
1348 |
|
EG1Controller.type = eg1_ctrl_t::type_none; |
1349 |
|
EG1Controller.controller_number = 0; |
1350 |
|
EG1ControllerInvert = false; |
1351 |
|
EG1ControllerAttackInfluence = 0; |
1352 |
|
EG1ControllerDecayInfluence = 0; |
1353 |
|
EG1ControllerReleaseInfluence = 0; |
1354 |
|
EG2Controller.type = eg2_ctrl_t::type_none; |
1355 |
|
EG2Controller.controller_number = 0; |
1356 |
|
EG2ControllerInvert = false; |
1357 |
|
EG2ControllerAttackInfluence = 0; |
1358 |
|
EG2ControllerDecayInfluence = 0; |
1359 |
|
EG2ControllerReleaseInfluence = 0; |
1360 |
|
LFO1Frequency = 1.0; |
1361 |
|
EG2Attack = 0.0; |
1362 |
|
EG2Decay1 = 0.0; |
1363 |
|
EG2Sustain = 0; |
1364 |
|
EG2Release = 0.0; |
1365 |
|
LFO2ControlDepth = 0; |
1366 |
|
LFO2Frequency = 1.0; |
1367 |
|
LFO2InternalDepth = 0; |
1368 |
|
EG1Decay2 = 0.0; |
1369 |
|
EG1InfiniteSustain = false; |
1370 |
|
EG1PreAttack = 1000; |
1371 |
|
EG2Decay2 = 0.0; |
1372 |
|
EG2InfiniteSustain = false; |
1373 |
|
EG2PreAttack = 1000; |
1374 |
|
VelocityResponseCurve = curve_type_nonlinear; |
1375 |
|
VelocityResponseDepth = 3; |
1376 |
|
ReleaseVelocityResponseCurve = curve_type_nonlinear; |
1377 |
|
ReleaseVelocityResponseDepth = 3; |
1378 |
|
VelocityResponseCurveScaling = 32; |
1379 |
|
AttenuationControllerThreshold = 0; |
1380 |
|
SampleStartOffset = 0; |
1381 |
|
PitchTrack = true; |
1382 |
|
DimensionBypass = dim_bypass_ctrl_none; |
1383 |
|
Pan = 0; |
1384 |
|
SelfMask = true; |
1385 |
|
LFO3Controller = lfo3_ctrl_modwheel; |
1386 |
|
LFO3Sync = false; |
1387 |
|
InvertAttenuationController = false; |
1388 |
|
AttenuationController.type = attenuation_ctrl_t::type_none; |
1389 |
|
AttenuationController.controller_number = 0; |
1390 |
|
LFO2Controller = lfo2_ctrl_internal; |
1391 |
|
LFO2FlipPhase = false; |
1392 |
|
LFO2Sync = false; |
1393 |
|
LFO1Controller = lfo1_ctrl_internal; |
1394 |
|
LFO1FlipPhase = false; |
1395 |
|
LFO1Sync = false; |
1396 |
|
VCFResonanceController = vcf_res_ctrl_none; |
1397 |
|
EG3Depth = 0; |
1398 |
|
ChannelOffset = 0; |
1399 |
|
MSDecode = false; |
1400 |
|
SustainDefeat = false; |
1401 |
|
VelocityUpperLimit = 0; |
1402 |
|
ReleaseTriggerDecay = 0; |
1403 |
|
EG1Hold = false; |
1404 |
|
VCFEnabled = false; |
1405 |
|
VCFCutoff = 0; |
1406 |
|
VCFCutoffController = vcf_cutoff_ctrl_none; |
1407 |
|
VCFCutoffControllerInvert = false; |
1408 |
|
VCFVelocityScale = 0; |
1409 |
|
VCFResonance = 0; |
1410 |
|
VCFResonanceDynamic = false; |
1411 |
|
VCFKeyboardTracking = false; |
1412 |
|
VCFKeyboardTrackingBreakpoint = 0; |
1413 |
|
VCFVelocityDynamicRange = 0x04; |
1414 |
|
VCFVelocityCurve = curve_type_linear; |
1415 |
|
VCFType = vcf_type_lowpass; |
1416 |
|
} |
1417 |
|
|
1418 |
|
pVelocityAttenuationTable = GetVelocityTable(VelocityResponseCurve, |
1419 |
|
VelocityResponseDepth, |
1420 |
|
VelocityResponseCurveScaling); |
1421 |
|
|
1422 |
|
curve_type_t curveType = ReleaseVelocityResponseCurve; |
1423 |
|
uint8_t depth = ReleaseVelocityResponseDepth; |
1424 |
|
|
1425 |
|
// this models a strange behaviour or bug in GSt: two of the |
1426 |
|
// velocity response curves for release time are not used even |
1427 |
|
// if specified, instead another curve is chosen. |
1428 |
|
if ((curveType == curve_type_nonlinear && depth == 0) || |
1429 |
|
(curveType == curve_type_special && depth == 4)) { |
1430 |
|
curveType = curve_type_nonlinear; |
1431 |
|
depth = 3; |
1432 |
|
} |
1433 |
|
pVelocityReleaseTable = GetVelocityTable(curveType, depth, 0); |
1434 |
|
|
1435 |
|
curveType = VCFVelocityCurve; |
1436 |
|
depth = VCFVelocityDynamicRange; |
1437 |
|
|
1438 |
|
// even stranger GSt: two of the velocity response curves for |
1439 |
|
// filter cutoff are not used, instead another special curve |
1440 |
|
// is chosen. This curve is not used anywhere else. |
1441 |
|
if ((curveType == curve_type_nonlinear && depth == 0) || |
1442 |
|
(curveType == curve_type_special && depth == 4)) { |
1443 |
|
curveType = curve_type_special; |
1444 |
|
depth = 5; |
1445 |
} |
} |
1446 |
VelocityResponseCurveScaling = _3ewa->ReadUint8(); |
pVelocityCutoffTable = GetVelocityTable(curveType, depth, |
1447 |
AttenuationControlTreshold = _3ewa->ReadInt8(); |
VCFCutoffController <= vcf_cutoff_ctrl_none2 ? VCFVelocityScale : 0); |
|
_3ewa->ReadInt32(); // unknown |
|
|
SampleStartOffset = (uint16_t) _3ewa->ReadInt16(); |
|
|
_3ewa->ReadInt16(); // unknown |
|
|
uint8_t pitchTrackDimensionBypass = _3ewa->ReadInt8(); |
|
|
PitchTrack = GIG_PITCH_TRACK_EXTRACT(pitchTrackDimensionBypass); |
|
|
if (pitchTrackDimensionBypass & 0x10) DimensionBypass = dim_bypass_ctrl_94; |
|
|
else if (pitchTrackDimensionBypass & 0x20) DimensionBypass = dim_bypass_ctrl_95; |
|
|
else DimensionBypass = dim_bypass_ctrl_none; |
|
|
uint8_t pan = _3ewa->ReadUint8(); |
|
|
Pan = (pan < 64) ? pan : (-1) * (int8_t)pan - 63; |
|
|
SelfMask = _3ewa->ReadInt8() & 0x01; |
|
|
_3ewa->ReadInt8(); // unknown |
|
|
uint8_t lfo3ctrl = _3ewa->ReadUint8(); |
|
|
LFO3Controller = static_cast<lfo3_ctrl_t>(lfo3ctrl & 0x07); // lower 3 bits |
|
|
LFO3Sync = lfo3ctrl & 0x20; // bit 5 |
|
|
InvertAttenuationControl = lfo3ctrl & 0x80; // bit 7 |
|
|
if (VCFType == vcf_type_lowpass) { |
|
|
if (lfo3ctrl & 0x40) // bit 6 |
|
|
VCFType = vcf_type_lowpassturbo; |
|
|
} |
|
|
AttenuationControl = static_cast<attenuation_ctrl_t>(_3ewa->ReadUint8()); |
|
|
uint8_t lfo2ctrl = _3ewa->ReadUint8(); |
|
|
LFO2Controller = static_cast<lfo2_ctrl_t>(lfo2ctrl & 0x07); // lower 3 bits |
|
|
LFO2FlipPhase = lfo2ctrl & 0x80; // bit 7 |
|
|
LFO2Sync = lfo2ctrl & 0x20; // bit 5 |
|
|
bool extResonanceCtrl = lfo2ctrl & 0x40; // bit 6 |
|
|
uint8_t lfo1ctrl = _3ewa->ReadUint8(); |
|
|
LFO1Controller = static_cast<lfo1_ctrl_t>(lfo1ctrl & 0x07); // lower 3 bits |
|
|
LFO1FlipPhase = lfo1ctrl & 0x80; // bit 7 |
|
|
LFO1Sync = lfo1ctrl & 0x40; // bit 6 |
|
|
VCFResonanceController = (extResonanceCtrl) ? static_cast<vcf_res_ctrl_t>(GIG_VCF_RESONANCE_CTRL_EXTRACT(lfo1ctrl)) |
|
|
: vcf_res_ctrl_none; |
|
|
uint16_t eg3depth = _3ewa->ReadUint16(); |
|
|
EG3Depth = (eg3depth <= 1200) ? eg3depth /* positives */ |
|
|
: (-1) * (int16_t) ((eg3depth ^ 0xffff) + 1); /* binary complementary for negatives */ |
|
|
_3ewa->ReadInt16(); // unknown |
|
|
ChannelOffset = _3ewa->ReadUint8() / 4; |
|
|
uint8_t regoptions = _3ewa->ReadUint8(); |
|
|
MSDecode = regoptions & 0x01; // bit 0 |
|
|
SustainDefeat = regoptions & 0x02; // bit 1 |
|
|
_3ewa->ReadInt16(); // unknown |
|
|
VelocityUpperLimit = _3ewa->ReadInt8(); |
|
|
_3ewa->ReadInt8(); // unknown |
|
|
_3ewa->ReadInt16(); // unknown |
|
|
ReleaseTriggerDecay = _3ewa->ReadUint8(); // release trigger decay |
|
|
_3ewa->ReadInt8(); // unknown |
|
|
_3ewa->ReadInt8(); // unknown |
|
|
EG1Hold = _3ewa->ReadUint8() & 0x80; // bit 7 |
|
|
uint8_t vcfcutoff = _3ewa->ReadUint8(); |
|
|
VCFEnabled = vcfcutoff & 0x80; // bit 7 |
|
|
VCFCutoff = vcfcutoff & 0x7f; // lower 7 bits |
|
|
VCFCutoffController = static_cast<vcf_cutoff_ctrl_t>(_3ewa->ReadUint8()); |
|
|
VCFVelocityScale = _3ewa->ReadUint8(); |
|
|
_3ewa->ReadInt8(); // unknown |
|
|
uint8_t vcfresonance = _3ewa->ReadUint8(); |
|
|
VCFResonance = vcfresonance & 0x7f; // lower 7 bits |
|
|
VCFResonanceDynamic = !(vcfresonance & 0x80); // bit 7 |
|
|
uint8_t vcfbreakpoint = _3ewa->ReadUint8(); |
|
|
VCFKeyboardTracking = vcfbreakpoint & 0x80; // bit 7 |
|
|
VCFKeyboardTrackingBreakpoint = vcfbreakpoint & 0x7f; // lower 7 bits |
|
|
uint8_t vcfvelocity = _3ewa->ReadUint8(); |
|
|
VCFVelocityDynamicRange = vcfvelocity % 5; |
|
|
VCFVelocityCurve = static_cast<curve_type_t>(vcfvelocity / 5); |
|
|
VCFType = static_cast<vcf_type_t>(_3ewa->ReadUint8()); |
|
1448 |
|
|
1449 |
// get the corresponding velocity->volume table from the table map or create & calculate that table if it doesn't exist yet |
SampleAttenuation = pow(10.0, -Gain / (20.0 * 655360)); |
1450 |
uint32_t tableKey = (VelocityResponseCurve<<16) | (VelocityResponseDepth<<8) | VelocityResponseCurveScaling; |
} |
1451 |
if (pVelocityTables->count(tableKey)) { // if key exists |
|
1452 |
pVelocityAttenuationTable = (*pVelocityTables)[tableKey]; |
/** |
1453 |
|
* Apply dimension region settings to the respective RIFF chunks. You |
1454 |
|
* have to call File::Save() to make changes persistent. |
1455 |
|
* |
1456 |
|
* Usually there is absolutely no need to call this method explicitly. |
1457 |
|
* It will be called automatically when File::Save() was called. |
1458 |
|
*/ |
1459 |
|
void DimensionRegion::UpdateChunks() { |
1460 |
|
// first update base class's chunk |
1461 |
|
DLS::Sampler::UpdateChunks(); |
1462 |
|
|
1463 |
|
// make sure '3ewa' chunk exists |
1464 |
|
RIFF::Chunk* _3ewa = pParentList->GetSubChunk(CHUNK_ID_3EWA); |
1465 |
|
if (!_3ewa) _3ewa = pParentList->AddSubChunk(CHUNK_ID_3EWA, 140); |
1466 |
|
uint8_t* pData = (uint8_t*) _3ewa->LoadChunkData(); |
1467 |
|
|
1468 |
|
// update '3ewa' chunk with DimensionRegion's current settings |
1469 |
|
|
1470 |
|
const uint32_t unknown = 0x0000008C; // unknown, always 0x0000008C ? |
1471 |
|
memcpy(&pData[0], &unknown, 4); |
1472 |
|
|
1473 |
|
const int32_t lfo3freq = (int32_t) GIG_EXP_ENCODE(LFO3Frequency); |
1474 |
|
memcpy(&pData[4], &lfo3freq, 4); |
1475 |
|
|
1476 |
|
const int32_t eg3attack = (int32_t) GIG_EXP_ENCODE(EG3Attack); |
1477 |
|
memcpy(&pData[4], &eg3attack, 4); |
1478 |
|
|
1479 |
|
// next 2 bytes unknown |
1480 |
|
|
1481 |
|
memcpy(&pData[10], &LFO1InternalDepth, 2); |
1482 |
|
|
1483 |
|
// next 2 bytes unknown |
1484 |
|
|
1485 |
|
memcpy(&pData[14], &LFO3InternalDepth, 2); |
1486 |
|
|
1487 |
|
// next 2 bytes unknown |
1488 |
|
|
1489 |
|
memcpy(&pData[18], &LFO1ControlDepth, 2); |
1490 |
|
|
1491 |
|
// next 2 bytes unknown |
1492 |
|
|
1493 |
|
memcpy(&pData[22], &LFO3ControlDepth, 2); |
1494 |
|
|
1495 |
|
const int32_t eg1attack = (int32_t) GIG_EXP_ENCODE(EG1Attack); |
1496 |
|
memcpy(&pData[24], &eg1attack, 4); |
1497 |
|
|
1498 |
|
const int32_t eg1decay1 = (int32_t) GIG_EXP_ENCODE(EG1Decay1); |
1499 |
|
memcpy(&pData[28], &eg1decay1, 4); |
1500 |
|
|
1501 |
|
// next 2 bytes unknown |
1502 |
|
|
1503 |
|
memcpy(&pData[34], &EG1Sustain, 2); |
1504 |
|
|
1505 |
|
const int32_t eg1release = (int32_t) GIG_EXP_ENCODE(EG1Release); |
1506 |
|
memcpy(&pData[36], &eg1release, 4); |
1507 |
|
|
1508 |
|
const uint8_t eg1ctl = (uint8_t) EncodeLeverageController(EG1Controller); |
1509 |
|
memcpy(&pData[40], &eg1ctl, 1); |
1510 |
|
|
1511 |
|
const uint8_t eg1ctrloptions = |
1512 |
|
(EG1ControllerInvert) ? 0x01 : 0x00 | |
1513 |
|
GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG1ControllerAttackInfluence) | |
1514 |
|
GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG1ControllerDecayInfluence) | |
1515 |
|
GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG1ControllerReleaseInfluence); |
1516 |
|
memcpy(&pData[41], &eg1ctrloptions, 1); |
1517 |
|
|
1518 |
|
const uint8_t eg2ctl = (uint8_t) EncodeLeverageController(EG2Controller); |
1519 |
|
memcpy(&pData[42], &eg2ctl, 1); |
1520 |
|
|
1521 |
|
const uint8_t eg2ctrloptions = |
1522 |
|
(EG2ControllerInvert) ? 0x01 : 0x00 | |
1523 |
|
GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG2ControllerAttackInfluence) | |
1524 |
|
GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG2ControllerDecayInfluence) | |
1525 |
|
GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG2ControllerReleaseInfluence); |
1526 |
|
memcpy(&pData[43], &eg2ctrloptions, 1); |
1527 |
|
|
1528 |
|
const int32_t lfo1freq = (int32_t) GIG_EXP_ENCODE(LFO1Frequency); |
1529 |
|
memcpy(&pData[44], &lfo1freq, 4); |
1530 |
|
|
1531 |
|
const int32_t eg2attack = (int32_t) GIG_EXP_ENCODE(EG2Attack); |
1532 |
|
memcpy(&pData[48], &eg2attack, 4); |
1533 |
|
|
1534 |
|
const int32_t eg2decay1 = (int32_t) GIG_EXP_ENCODE(EG2Decay1); |
1535 |
|
memcpy(&pData[52], &eg2decay1, 4); |
1536 |
|
|
1537 |
|
// next 2 bytes unknown |
1538 |
|
|
1539 |
|
memcpy(&pData[58], &EG2Sustain, 2); |
1540 |
|
|
1541 |
|
const int32_t eg2release = (int32_t) GIG_EXP_ENCODE(EG2Release); |
1542 |
|
memcpy(&pData[60], &eg2release, 4); |
1543 |
|
|
1544 |
|
// next 2 bytes unknown |
1545 |
|
|
1546 |
|
memcpy(&pData[66], &LFO2ControlDepth, 2); |
1547 |
|
|
1548 |
|
const int32_t lfo2freq = (int32_t) GIG_EXP_ENCODE(LFO2Frequency); |
1549 |
|
memcpy(&pData[68], &lfo2freq, 4); |
1550 |
|
|
1551 |
|
// next 2 bytes unknown |
1552 |
|
|
1553 |
|
memcpy(&pData[72], &LFO2InternalDepth, 2); |
1554 |
|
|
1555 |
|
const int32_t eg1decay2 = (int32_t) (EG1InfiniteSustain) ? 0x7fffffff : (int32_t) GIG_EXP_ENCODE(EG1Decay2); |
1556 |
|
memcpy(&pData[74], &eg1decay2, 4); |
1557 |
|
|
1558 |
|
// next 2 bytes unknown |
1559 |
|
|
1560 |
|
memcpy(&pData[80], &EG1PreAttack, 2); |
1561 |
|
|
1562 |
|
const int32_t eg2decay2 = (int32_t) (EG2InfiniteSustain) ? 0x7fffffff : (int32_t) GIG_EXP_ENCODE(EG2Decay2); |
1563 |
|
memcpy(&pData[82], &eg2decay2, 4); |
1564 |
|
|
1565 |
|
// next 2 bytes unknown |
1566 |
|
|
1567 |
|
memcpy(&pData[88], &EG2PreAttack, 2); |
1568 |
|
|
1569 |
|
{ |
1570 |
|
if (VelocityResponseDepth > 4) throw Exception("VelocityResponseDepth must be between 0 and 4"); |
1571 |
|
uint8_t velocityresponse = VelocityResponseDepth; |
1572 |
|
switch (VelocityResponseCurve) { |
1573 |
|
case curve_type_nonlinear: |
1574 |
|
break; |
1575 |
|
case curve_type_linear: |
1576 |
|
velocityresponse += 5; |
1577 |
|
break; |
1578 |
|
case curve_type_special: |
1579 |
|
velocityresponse += 10; |
1580 |
|
break; |
1581 |
|
case curve_type_unknown: |
1582 |
|
default: |
1583 |
|
throw Exception("Could not update DimensionRegion's chunk, unknown VelocityResponseCurve selected"); |
1584 |
|
} |
1585 |
|
memcpy(&pData[90], &velocityresponse, 1); |
1586 |
} |
} |
1587 |
else { |
|
1588 |
pVelocityAttenuationTable = new double[128]; |
{ |
1589 |
switch (VelocityResponseCurve) { // calculate the new table |
if (ReleaseVelocityResponseDepth > 4) throw Exception("ReleaseVelocityResponseDepth must be between 0 and 4"); |
1590 |
|
uint8_t releasevelocityresponse = ReleaseVelocityResponseDepth; |
1591 |
|
switch (ReleaseVelocityResponseCurve) { |
1592 |
case curve_type_nonlinear: |
case curve_type_nonlinear: |
1593 |
for (int velocity = 0; velocity < 128; velocity++) { |
break; |
|
pVelocityAttenuationTable[velocity] = |
|
|
GIG_VELOCITY_TRANSFORM_NONLINEAR((double)(velocity+1),(double)(VelocityResponseDepth+1),(double)VelocityResponseCurveScaling); |
|
|
if (pVelocityAttenuationTable[velocity] > 1.0) pVelocityAttenuationTable[velocity] = 1.0; |
|
|
else if (pVelocityAttenuationTable[velocity] < 0.0) pVelocityAttenuationTable[velocity] = 0.0; |
|
|
} |
|
|
break; |
|
1594 |
case curve_type_linear: |
case curve_type_linear: |
1595 |
for (int velocity = 0; velocity < 128; velocity++) { |
releasevelocityresponse += 5; |
|
pVelocityAttenuationTable[velocity] = |
|
|
GIG_VELOCITY_TRANSFORM_LINEAR((double)velocity,(double)(VelocityResponseDepth+1),(double)VelocityResponseCurveScaling); |
|
|
if (pVelocityAttenuationTable[velocity] > 1.0) pVelocityAttenuationTable[velocity] = 1.0; |
|
|
else if (pVelocityAttenuationTable[velocity] < 0.0) pVelocityAttenuationTable[velocity] = 0.0; |
|
|
} |
|
1596 |
break; |
break; |
1597 |
case curve_type_special: |
case curve_type_special: |
1598 |
for (int velocity = 0; velocity < 128; velocity++) { |
releasevelocityresponse += 10; |
|
pVelocityAttenuationTable[velocity] = |
|
|
GIG_VELOCITY_TRANSFORM_SPECIAL((double)(velocity+1),(double)(VelocityResponseDepth+1),(double)VelocityResponseCurveScaling); |
|
|
if (pVelocityAttenuationTable[velocity] > 1.0) pVelocityAttenuationTable[velocity] = 1.0; |
|
|
else if (pVelocityAttenuationTable[velocity] < 0.0) pVelocityAttenuationTable[velocity] = 0.0; |
|
|
} |
|
1599 |
break; |
break; |
1600 |
case curve_type_unknown: |
case curve_type_unknown: |
1601 |
default: |
default: |
1602 |
throw gig::Exception("Unknown transform curve type."); |
throw Exception("Could not update DimensionRegion's chunk, unknown ReleaseVelocityResponseCurve selected"); |
1603 |
|
} |
1604 |
|
memcpy(&pData[91], &releasevelocityresponse, 1); |
1605 |
|
} |
1606 |
|
|
1607 |
|
memcpy(&pData[92], &VelocityResponseCurveScaling, 1); |
1608 |
|
|
1609 |
|
memcpy(&pData[93], &AttenuationControllerThreshold, 1); |
1610 |
|
|
1611 |
|
// next 4 bytes unknown |
1612 |
|
|
1613 |
|
memcpy(&pData[98], &SampleStartOffset, 2); |
1614 |
|
|
1615 |
|
// next 2 bytes unknown |
1616 |
|
|
1617 |
|
{ |
1618 |
|
uint8_t pitchTrackDimensionBypass = GIG_PITCH_TRACK_ENCODE(PitchTrack); |
1619 |
|
switch (DimensionBypass) { |
1620 |
|
case dim_bypass_ctrl_94: |
1621 |
|
pitchTrackDimensionBypass |= 0x10; |
1622 |
|
break; |
1623 |
|
case dim_bypass_ctrl_95: |
1624 |
|
pitchTrackDimensionBypass |= 0x20; |
1625 |
|
break; |
1626 |
|
case dim_bypass_ctrl_none: |
1627 |
|
//FIXME: should we set anything here? |
1628 |
|
break; |
1629 |
|
default: |
1630 |
|
throw Exception("Could not update DimensionRegion's chunk, unknown DimensionBypass selected"); |
1631 |
} |
} |
1632 |
(*pVelocityTables)[tableKey] = pVelocityAttenuationTable; // put the new table into the tables map |
memcpy(&pData[102], &pitchTrackDimensionBypass, 1); |
1633 |
|
} |
1634 |
|
|
1635 |
|
const uint8_t pan = (Pan >= 0) ? Pan : ((-Pan) + 63); // signed 8 bit -> signed 7 bit |
1636 |
|
memcpy(&pData[103], &pan, 1); |
1637 |
|
|
1638 |
|
const uint8_t selfmask = (SelfMask) ? 0x01 : 0x00; |
1639 |
|
memcpy(&pData[104], &selfmask, 1); |
1640 |
|
|
1641 |
|
// next byte unknown |
1642 |
|
|
1643 |
|
{ |
1644 |
|
uint8_t lfo3ctrl = LFO3Controller & 0x07; // lower 3 bits |
1645 |
|
if (LFO3Sync) lfo3ctrl |= 0x20; // bit 5 |
1646 |
|
if (InvertAttenuationController) lfo3ctrl |= 0x80; // bit 7 |
1647 |
|
if (VCFType == vcf_type_lowpassturbo) lfo3ctrl |= 0x40; // bit 6 |
1648 |
|
memcpy(&pData[106], &lfo3ctrl, 1); |
1649 |
|
} |
1650 |
|
|
1651 |
|
const uint8_t attenctl = EncodeLeverageController(AttenuationController); |
1652 |
|
memcpy(&pData[107], &attenctl, 1); |
1653 |
|
|
1654 |
|
{ |
1655 |
|
uint8_t lfo2ctrl = LFO2Controller & 0x07; // lower 3 bits |
1656 |
|
if (LFO2FlipPhase) lfo2ctrl |= 0x80; // bit 7 |
1657 |
|
if (LFO2Sync) lfo2ctrl |= 0x20; // bit 5 |
1658 |
|
if (VCFResonanceController != vcf_res_ctrl_none) lfo2ctrl |= 0x40; // bit 6 |
1659 |
|
memcpy(&pData[108], &lfo2ctrl, 1); |
1660 |
|
} |
1661 |
|
|
1662 |
|
{ |
1663 |
|
uint8_t lfo1ctrl = LFO1Controller & 0x07; // lower 3 bits |
1664 |
|
if (LFO1FlipPhase) lfo1ctrl |= 0x80; // bit 7 |
1665 |
|
if (LFO1Sync) lfo1ctrl |= 0x40; // bit 6 |
1666 |
|
if (VCFResonanceController != vcf_res_ctrl_none) |
1667 |
|
lfo1ctrl |= GIG_VCF_RESONANCE_CTRL_ENCODE(VCFResonanceController); |
1668 |
|
memcpy(&pData[109], &lfo1ctrl, 1); |
1669 |
} |
} |
1670 |
|
|
1671 |
|
const uint16_t eg3depth = (EG3Depth >= 0) ? EG3Depth |
1672 |
|
: uint16_t(((-EG3Depth) - 1) ^ 0xffff); /* binary complementary for negatives */ |
1673 |
|
memcpy(&pData[110], &eg3depth, 1); |
1674 |
|
|
1675 |
|
// next 2 bytes unknown |
1676 |
|
|
1677 |
|
const uint8_t channeloffset = ChannelOffset * 4; |
1678 |
|
memcpy(&pData[113], &channeloffset, 1); |
1679 |
|
|
1680 |
|
{ |
1681 |
|
uint8_t regoptions = 0; |
1682 |
|
if (MSDecode) regoptions |= 0x01; // bit 0 |
1683 |
|
if (SustainDefeat) regoptions |= 0x02; // bit 1 |
1684 |
|
memcpy(&pData[114], ®options, 1); |
1685 |
|
} |
1686 |
|
|
1687 |
|
// next 2 bytes unknown |
1688 |
|
|
1689 |
|
memcpy(&pData[117], &VelocityUpperLimit, 1); |
1690 |
|
|
1691 |
|
// next 3 bytes unknown |
1692 |
|
|
1693 |
|
memcpy(&pData[121], &ReleaseTriggerDecay, 1); |
1694 |
|
|
1695 |
|
// next 2 bytes unknown |
1696 |
|
|
1697 |
|
const uint8_t eg1hold = (EG1Hold) ? 0x80 : 0x00; // bit 7 |
1698 |
|
memcpy(&pData[124], &eg1hold, 1); |
1699 |
|
|
1700 |
|
const uint8_t vcfcutoff = (VCFEnabled) ? 0x80 : 0x00 | /* bit 7 */ |
1701 |
|
(VCFCutoff) ? 0x7f : 0x00; /* lower 7 bits */ |
1702 |
|
memcpy(&pData[125], &vcfcutoff, 1); |
1703 |
|
|
1704 |
|
memcpy(&pData[126], &VCFCutoffController, 1); |
1705 |
|
|
1706 |
|
const uint8_t vcfvelscale = (VCFCutoffControllerInvert) ? 0x80 : 0x00 | /* bit 7 */ |
1707 |
|
(VCFVelocityScale) ? 0x7f : 0x00; /* lower 7 bits */ |
1708 |
|
memcpy(&pData[127], &vcfvelscale, 1); |
1709 |
|
|
1710 |
|
// next byte unknown |
1711 |
|
|
1712 |
|
const uint8_t vcfresonance = (VCFResonanceDynamic) ? 0x00 : 0x80 | /* bit 7 */ |
1713 |
|
(VCFResonance) ? 0x7f : 0x00; /* lower 7 bits */ |
1714 |
|
memcpy(&pData[129], &vcfresonance, 1); |
1715 |
|
|
1716 |
|
const uint8_t vcfbreakpoint = (VCFKeyboardTracking) ? 0x80 : 0x00 | /* bit 7 */ |
1717 |
|
(VCFKeyboardTrackingBreakpoint) ? 0x7f : 0x00; /* lower 7 bits */ |
1718 |
|
memcpy(&pData[130], &vcfbreakpoint, 1); |
1719 |
|
|
1720 |
|
const uint8_t vcfvelocity = VCFVelocityDynamicRange % 5 | |
1721 |
|
VCFVelocityCurve * 5; |
1722 |
|
memcpy(&pData[131], &vcfvelocity, 1); |
1723 |
|
|
1724 |
|
const uint8_t vcftype = (VCFType == vcf_type_lowpassturbo) ? vcf_type_lowpass : VCFType; |
1725 |
|
memcpy(&pData[132], &vcftype, 1); |
1726 |
|
} |
1727 |
|
|
1728 |
|
// get the corresponding velocity table from the table map or create & calculate that table if it doesn't exist yet |
1729 |
|
double* DimensionRegion::GetVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) |
1730 |
|
{ |
1731 |
|
double* table; |
1732 |
|
uint32_t tableKey = (curveType<<16) | (depth<<8) | scaling; |
1733 |
|
if (pVelocityTables->count(tableKey)) { // if key exists |
1734 |
|
table = (*pVelocityTables)[tableKey]; |
1735 |
|
} |
1736 |
|
else { |
1737 |
|
table = CreateVelocityTable(curveType, depth, scaling); |
1738 |
|
(*pVelocityTables)[tableKey] = table; // put the new table into the tables map |
1739 |
|
} |
1740 |
|
return table; |
1741 |
|
} |
1742 |
|
|
1743 |
|
leverage_ctrl_t DimensionRegion::DecodeLeverageController(_lev_ctrl_t EncodedController) { |
1744 |
|
leverage_ctrl_t decodedcontroller; |
1745 |
|
switch (EncodedController) { |
1746 |
|
// special controller |
1747 |
|
case _lev_ctrl_none: |
1748 |
|
decodedcontroller.type = leverage_ctrl_t::type_none; |
1749 |
|
decodedcontroller.controller_number = 0; |
1750 |
|
break; |
1751 |
|
case _lev_ctrl_velocity: |
1752 |
|
decodedcontroller.type = leverage_ctrl_t::type_velocity; |
1753 |
|
decodedcontroller.controller_number = 0; |
1754 |
|
break; |
1755 |
|
case _lev_ctrl_channelaftertouch: |
1756 |
|
decodedcontroller.type = leverage_ctrl_t::type_channelaftertouch; |
1757 |
|
decodedcontroller.controller_number = 0; |
1758 |
|
break; |
1759 |
|
|
1760 |
|
// ordinary MIDI control change controller |
1761 |
|
case _lev_ctrl_modwheel: |
1762 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1763 |
|
decodedcontroller.controller_number = 1; |
1764 |
|
break; |
1765 |
|
case _lev_ctrl_breath: |
1766 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1767 |
|
decodedcontroller.controller_number = 2; |
1768 |
|
break; |
1769 |
|
case _lev_ctrl_foot: |
1770 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1771 |
|
decodedcontroller.controller_number = 4; |
1772 |
|
break; |
1773 |
|
case _lev_ctrl_effect1: |
1774 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1775 |
|
decodedcontroller.controller_number = 12; |
1776 |
|
break; |
1777 |
|
case _lev_ctrl_effect2: |
1778 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1779 |
|
decodedcontroller.controller_number = 13; |
1780 |
|
break; |
1781 |
|
case _lev_ctrl_genpurpose1: |
1782 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1783 |
|
decodedcontroller.controller_number = 16; |
1784 |
|
break; |
1785 |
|
case _lev_ctrl_genpurpose2: |
1786 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1787 |
|
decodedcontroller.controller_number = 17; |
1788 |
|
break; |
1789 |
|
case _lev_ctrl_genpurpose3: |
1790 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1791 |
|
decodedcontroller.controller_number = 18; |
1792 |
|
break; |
1793 |
|
case _lev_ctrl_genpurpose4: |
1794 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1795 |
|
decodedcontroller.controller_number = 19; |
1796 |
|
break; |
1797 |
|
case _lev_ctrl_portamentotime: |
1798 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1799 |
|
decodedcontroller.controller_number = 5; |
1800 |
|
break; |
1801 |
|
case _lev_ctrl_sustainpedal: |
1802 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1803 |
|
decodedcontroller.controller_number = 64; |
1804 |
|
break; |
1805 |
|
case _lev_ctrl_portamento: |
1806 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1807 |
|
decodedcontroller.controller_number = 65; |
1808 |
|
break; |
1809 |
|
case _lev_ctrl_sostenutopedal: |
1810 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1811 |
|
decodedcontroller.controller_number = 66; |
1812 |
|
break; |
1813 |
|
case _lev_ctrl_softpedal: |
1814 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1815 |
|
decodedcontroller.controller_number = 67; |
1816 |
|
break; |
1817 |
|
case _lev_ctrl_genpurpose5: |
1818 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1819 |
|
decodedcontroller.controller_number = 80; |
1820 |
|
break; |
1821 |
|
case _lev_ctrl_genpurpose6: |
1822 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1823 |
|
decodedcontroller.controller_number = 81; |
1824 |
|
break; |
1825 |
|
case _lev_ctrl_genpurpose7: |
1826 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1827 |
|
decodedcontroller.controller_number = 82; |
1828 |
|
break; |
1829 |
|
case _lev_ctrl_genpurpose8: |
1830 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1831 |
|
decodedcontroller.controller_number = 83; |
1832 |
|
break; |
1833 |
|
case _lev_ctrl_effect1depth: |
1834 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1835 |
|
decodedcontroller.controller_number = 91; |
1836 |
|
break; |
1837 |
|
case _lev_ctrl_effect2depth: |
1838 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1839 |
|
decodedcontroller.controller_number = 92; |
1840 |
|
break; |
1841 |
|
case _lev_ctrl_effect3depth: |
1842 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1843 |
|
decodedcontroller.controller_number = 93; |
1844 |
|
break; |
1845 |
|
case _lev_ctrl_effect4depth: |
1846 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1847 |
|
decodedcontroller.controller_number = 94; |
1848 |
|
break; |
1849 |
|
case _lev_ctrl_effect5depth: |
1850 |
|
decodedcontroller.type = leverage_ctrl_t::type_controlchange; |
1851 |
|
decodedcontroller.controller_number = 95; |
1852 |
|
break; |
1853 |
|
|
1854 |
|
// unknown controller type |
1855 |
|
default: |
1856 |
|
throw gig::Exception("Unknown leverage controller type."); |
1857 |
|
} |
1858 |
|
return decodedcontroller; |
1859 |
|
} |
1860 |
|
|
1861 |
|
DimensionRegion::_lev_ctrl_t DimensionRegion::EncodeLeverageController(leverage_ctrl_t DecodedController) { |
1862 |
|
_lev_ctrl_t encodedcontroller; |
1863 |
|
switch (DecodedController.type) { |
1864 |
|
// special controller |
1865 |
|
case leverage_ctrl_t::type_none: |
1866 |
|
encodedcontroller = _lev_ctrl_none; |
1867 |
|
break; |
1868 |
|
case leverage_ctrl_t::type_velocity: |
1869 |
|
encodedcontroller = _lev_ctrl_velocity; |
1870 |
|
break; |
1871 |
|
case leverage_ctrl_t::type_channelaftertouch: |
1872 |
|
encodedcontroller = _lev_ctrl_channelaftertouch; |
1873 |
|
break; |
1874 |
|
|
1875 |
|
// ordinary MIDI control change controller |
1876 |
|
case leverage_ctrl_t::type_controlchange: |
1877 |
|
switch (DecodedController.controller_number) { |
1878 |
|
case 1: |
1879 |
|
encodedcontroller = _lev_ctrl_modwheel; |
1880 |
|
break; |
1881 |
|
case 2: |
1882 |
|
encodedcontroller = _lev_ctrl_breath; |
1883 |
|
break; |
1884 |
|
case 4: |
1885 |
|
encodedcontroller = _lev_ctrl_foot; |
1886 |
|
break; |
1887 |
|
case 12: |
1888 |
|
encodedcontroller = _lev_ctrl_effect1; |
1889 |
|
break; |
1890 |
|
case 13: |
1891 |
|
encodedcontroller = _lev_ctrl_effect2; |
1892 |
|
break; |
1893 |
|
case 16: |
1894 |
|
encodedcontroller = _lev_ctrl_genpurpose1; |
1895 |
|
break; |
1896 |
|
case 17: |
1897 |
|
encodedcontroller = _lev_ctrl_genpurpose2; |
1898 |
|
break; |
1899 |
|
case 18: |
1900 |
|
encodedcontroller = _lev_ctrl_genpurpose3; |
1901 |
|
break; |
1902 |
|
case 19: |
1903 |
|
encodedcontroller = _lev_ctrl_genpurpose4; |
1904 |
|
break; |
1905 |
|
case 5: |
1906 |
|
encodedcontroller = _lev_ctrl_portamentotime; |
1907 |
|
break; |
1908 |
|
case 64: |
1909 |
|
encodedcontroller = _lev_ctrl_sustainpedal; |
1910 |
|
break; |
1911 |
|
case 65: |
1912 |
|
encodedcontroller = _lev_ctrl_portamento; |
1913 |
|
break; |
1914 |
|
case 66: |
1915 |
|
encodedcontroller = _lev_ctrl_sostenutopedal; |
1916 |
|
break; |
1917 |
|
case 67: |
1918 |
|
encodedcontroller = _lev_ctrl_softpedal; |
1919 |
|
break; |
1920 |
|
case 80: |
1921 |
|
encodedcontroller = _lev_ctrl_genpurpose5; |
1922 |
|
break; |
1923 |
|
case 81: |
1924 |
|
encodedcontroller = _lev_ctrl_genpurpose6; |
1925 |
|
break; |
1926 |
|
case 82: |
1927 |
|
encodedcontroller = _lev_ctrl_genpurpose7; |
1928 |
|
break; |
1929 |
|
case 83: |
1930 |
|
encodedcontroller = _lev_ctrl_genpurpose8; |
1931 |
|
break; |
1932 |
|
case 91: |
1933 |
|
encodedcontroller = _lev_ctrl_effect1depth; |
1934 |
|
break; |
1935 |
|
case 92: |
1936 |
|
encodedcontroller = _lev_ctrl_effect2depth; |
1937 |
|
break; |
1938 |
|
case 93: |
1939 |
|
encodedcontroller = _lev_ctrl_effect3depth; |
1940 |
|
break; |
1941 |
|
case 94: |
1942 |
|
encodedcontroller = _lev_ctrl_effect4depth; |
1943 |
|
break; |
1944 |
|
case 95: |
1945 |
|
encodedcontroller = _lev_ctrl_effect5depth; |
1946 |
|
break; |
1947 |
|
default: |
1948 |
|
throw gig::Exception("leverage controller number is not supported by the gig format"); |
1949 |
|
} |
1950 |
|
default: |
1951 |
|
throw gig::Exception("Unknown leverage controller type."); |
1952 |
|
} |
1953 |
|
return encodedcontroller; |
1954 |
} |
} |
1955 |
|
|
1956 |
DimensionRegion::~DimensionRegion() { |
DimensionRegion::~DimensionRegion() { |
1976 |
* triggered to get the volume with which the sample should be played |
* triggered to get the volume with which the sample should be played |
1977 |
* back. |
* back. |
1978 |
* |
* |
1979 |
* @param MIDI velocity value of the triggered key (between 0 and 127) |
* @param MIDIKeyVelocity MIDI velocity value of the triggered key (between 0 and 127) |
1980 |
* @returns amplitude factor (between 0.0 and 1.0) |
* @returns amplitude factor (between 0.0 and 1.0) |
1981 |
*/ |
*/ |
1982 |
double DimensionRegion::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) { |
double DimensionRegion::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) { |
1983 |
return pVelocityAttenuationTable[MIDIKeyVelocity]; |
return pVelocityAttenuationTable[MIDIKeyVelocity]; |
1984 |
} |
} |
1985 |
|
|
1986 |
|
double DimensionRegion::GetVelocityRelease(uint8_t MIDIKeyVelocity) { |
1987 |
|
return pVelocityReleaseTable[MIDIKeyVelocity]; |
1988 |
|
} |
1989 |
|
|
1990 |
|
double DimensionRegion::GetVelocityCutoff(uint8_t MIDIKeyVelocity) { |
1991 |
|
return pVelocityCutoffTable[MIDIKeyVelocity]; |
1992 |
|
} |
1993 |
|
|
1994 |
|
double* DimensionRegion::CreateVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) { |
1995 |
|
|
1996 |
|
// line-segment approximations of the 15 velocity curves |
1997 |
|
|
1998 |
|
// linear |
1999 |
|
const int lin0[] = { 1, 1, 127, 127 }; |
2000 |
|
const int lin1[] = { 1, 21, 127, 127 }; |
2001 |
|
const int lin2[] = { 1, 45, 127, 127 }; |
2002 |
|
const int lin3[] = { 1, 74, 127, 127 }; |
2003 |
|
const int lin4[] = { 1, 127, 127, 127 }; |
2004 |
|
|
2005 |
|
// non-linear |
2006 |
|
const int non0[] = { 1, 4, 24, 5, 57, 17, 92, 57, 122, 127, 127, 127 }; |
2007 |
|
const int non1[] = { 1, 4, 46, 9, 93, 56, 118, 106, 123, 127, |
2008 |
|
127, 127 }; |
2009 |
|
const int non2[] = { 1, 4, 46, 9, 57, 20, 102, 107, 107, 127, |
2010 |
|
127, 127 }; |
2011 |
|
const int non3[] = { 1, 15, 10, 19, 67, 73, 80, 80, 90, 98, 98, 127, |
2012 |
|
127, 127 }; |
2013 |
|
const int non4[] = { 1, 25, 33, 57, 82, 81, 92, 127, 127, 127 }; |
2014 |
|
|
2015 |
|
// special |
2016 |
|
const int spe0[] = { 1, 2, 76, 10, 90, 15, 95, 20, 99, 28, 103, 44, |
2017 |
|
113, 127, 127, 127 }; |
2018 |
|
const int spe1[] = { 1, 2, 27, 5, 67, 18, 89, 29, 95, 35, 107, 67, |
2019 |
|
118, 127, 127, 127 }; |
2020 |
|
const int spe2[] = { 1, 1, 33, 1, 53, 5, 61, 13, 69, 32, 79, 74, |
2021 |
|
85, 90, 91, 127, 127, 127 }; |
2022 |
|
const int spe3[] = { 1, 32, 28, 35, 66, 48, 89, 59, 95, 65, 99, 73, |
2023 |
|
117, 127, 127, 127 }; |
2024 |
|
const int spe4[] = { 1, 4, 23, 5, 49, 13, 57, 17, 92, 57, 122, 127, |
2025 |
|
127, 127 }; |
2026 |
|
|
2027 |
|
// this is only used by the VCF velocity curve |
2028 |
|
const int spe5[] = { 1, 2, 30, 5, 60, 19, 77, 70, 83, 85, 88, 106, |
2029 |
|
91, 127, 127, 127 }; |
2030 |
|
|
2031 |
|
const int* const curves[] = { non0, non1, non2, non3, non4, |
2032 |
|
lin0, lin1, lin2, lin3, lin4, |
2033 |
|
spe0, spe1, spe2, spe3, spe4, spe5 }; |
2034 |
|
|
2035 |
|
double* const table = new double[128]; |
2036 |
|
|
2037 |
|
const int* curve = curves[curveType * 5 + depth]; |
2038 |
|
const int s = scaling == 0 ? 20 : scaling; // 0 or 20 means no scaling |
2039 |
|
|
2040 |
|
table[0] = 0; |
2041 |
|
for (int x = 1 ; x < 128 ; x++) { |
2042 |
|
|
2043 |
|
if (x > curve[2]) curve += 2; |
2044 |
|
double y = curve[1] + (x - curve[0]) * |
2045 |
|
(double(curve[3] - curve[1]) / (curve[2] - curve[0])); |
2046 |
|
y = y / 127; |
2047 |
|
|
2048 |
|
// Scale up for s > 20, down for s < 20. When |
2049 |
|
// down-scaling, the curve still ends at 1.0. |
2050 |
|
if (s < 20 && y >= 0.5) |
2051 |
|
y = y / ((2 - 40.0 / s) * y + 40.0 / s - 1); |
2052 |
|
else |
2053 |
|
y = y * (s / 20.0); |
2054 |
|
if (y > 1) y = 1; |
2055 |
|
|
2056 |
|
table[x] = y; |
2057 |
|
} |
2058 |
|
return table; |
2059 |
|
} |
2060 |
|
|
2061 |
|
|
2062 |
// *************** Region *************** |
// *************** Region *************** |
2065 |
Region::Region(Instrument* pInstrument, RIFF::List* rgnList) : DLS::Region((DLS::Instrument*) pInstrument, rgnList) { |
Region::Region(Instrument* pInstrument, RIFF::List* rgnList) : DLS::Region((DLS::Instrument*) pInstrument, rgnList) { |
2066 |
// Initialization |
// Initialization |
2067 |
Dimensions = 0; |
Dimensions = 0; |
2068 |
for (int i = 0; i < 32; i++) { |
for (int i = 0; i < 256; i++) { |
2069 |
pDimensionRegions[i] = NULL; |
pDimensionRegions[i] = NULL; |
2070 |
} |
} |
2071 |
|
Layers = 1; |
2072 |
|
File* file = (File*) GetParent()->GetParent(); |
2073 |
|
int dimensionBits = (file->pVersion && file->pVersion->major == 3) ? 8 : 5; |
2074 |
|
|
2075 |
// Actual Loading |
// Actual Loading |
2076 |
|
|
2079 |
RIFF::Chunk* _3lnk = rgnList->GetSubChunk(CHUNK_ID_3LNK); |
RIFF::Chunk* _3lnk = rgnList->GetSubChunk(CHUNK_ID_3LNK); |
2080 |
if (_3lnk) { |
if (_3lnk) { |
2081 |
DimensionRegions = _3lnk->ReadUint32(); |
DimensionRegions = _3lnk->ReadUint32(); |
2082 |
for (int i = 0; i < 5; i++) { |
for (int i = 0; i < dimensionBits; i++) { |
2083 |
dimension_t dimension = static_cast<dimension_t>(_3lnk->ReadUint8()); |
dimension_t dimension = static_cast<dimension_t>(_3lnk->ReadUint8()); |
2084 |
uint8_t bits = _3lnk->ReadUint8(); |
uint8_t bits = _3lnk->ReadUint8(); |
2085 |
|
_3lnk->ReadUint8(); // probably the position of the dimension |
2086 |
|
_3lnk->ReadUint8(); // unknown |
2087 |
|
uint8_t zones = _3lnk->ReadUint8(); // new for v3: number of zones doesn't have to be == pow(2,bits) |
2088 |
if (dimension == dimension_none) { // inactive dimension |
if (dimension == dimension_none) { // inactive dimension |
2089 |
pDimensionDefinitions[i].dimension = dimension_none; |
pDimensionDefinitions[i].dimension = dimension_none; |
2090 |
pDimensionDefinitions[i].bits = 0; |
pDimensionDefinitions[i].bits = 0; |
2096 |
else { // active dimension |
else { // active dimension |
2097 |
pDimensionDefinitions[i].dimension = dimension; |
pDimensionDefinitions[i].dimension = dimension; |
2098 |
pDimensionDefinitions[i].bits = bits; |
pDimensionDefinitions[i].bits = bits; |
2099 |
pDimensionDefinitions[i].zones = 0x01 << bits; // = pow(2,bits) |
pDimensionDefinitions[i].zones = zones ? zones : 0x01 << bits; // = pow(2,bits) |
2100 |
pDimensionDefinitions[i].split_type = (dimension == dimension_layer || |
pDimensionDefinitions[i].split_type = (dimension == dimension_layer || |
2101 |
dimension == dimension_samplechannel) ? split_type_bit |
dimension == dimension_samplechannel || |
2102 |
: split_type_normal; |
dimension == dimension_releasetrigger || |
2103 |
|
dimension == dimension_roundrobin || |
2104 |
|
dimension == dimension_random) ? split_type_bit |
2105 |
|
: split_type_normal; |
2106 |
pDimensionDefinitions[i].ranges = NULL; // it's not possible to check velocity dimensions for custom defined ranges at this point |
pDimensionDefinitions[i].ranges = NULL; // it's not possible to check velocity dimensions for custom defined ranges at this point |
2107 |
pDimensionDefinitions[i].zone_size = |
pDimensionDefinitions[i].zone_size = |
2108 |
(pDimensionDefinitions[i].split_type == split_type_normal) ? 128 / pDimensionDefinitions[i].zones |
(pDimensionDefinitions[i].split_type == split_type_normal) ? 128.0 / pDimensionDefinitions[i].zones |
2109 |
: 0; |
: 0; |
2110 |
Dimensions++; |
Dimensions++; |
2111 |
|
|
2112 |
|
// if this is a layer dimension, remember the amount of layers |
2113 |
|
if (dimension == dimension_layer) Layers = pDimensionDefinitions[i].zones; |
2114 |
} |
} |
2115 |
_3lnk->SetPos(6, RIFF::stream_curpos); // jump forward to next dimension definition |
_3lnk->SetPos(3, RIFF::stream_curpos); // jump forward to next dimension definition |
2116 |
} |
} |
2117 |
|
|
2118 |
// check velocity dimension (if there is one) for custom defined zone ranges |
// check velocity dimension (if there is one) for custom defined zone ranges |
2127 |
else { // custom defined ranges |
else { // custom defined ranges |
2128 |
pDimDef->split_type = split_type_customvelocity; |
pDimDef->split_type = split_type_customvelocity; |
2129 |
pDimDef->ranges = new range_t[pDimDef->zones]; |
pDimDef->ranges = new range_t[pDimDef->zones]; |
2130 |
unsigned int bits[5] = {0,0,0,0,0}; |
UpdateVelocityTable(pDimDef); |
|
int previousUpperLimit = -1; |
|
|
for (int velocityZone = 0; velocityZone < pDimDef->zones; velocityZone++) { |
|
|
bits[i] = velocityZone; |
|
|
DimensionRegion* pDimRegion = GetDimensionRegionByBit(bits[4],bits[3],bits[2],bits[1],bits[0]); |
|
|
|
|
|
pDimDef->ranges[velocityZone].low = previousUpperLimit + 1; |
|
|
pDimDef->ranges[velocityZone].high = pDimRegion->VelocityUpperLimit; |
|
|
previousUpperLimit = pDimDef->ranges[velocityZone].high; |
|
|
// fill velocity table |
|
|
for (int i = pDimDef->ranges[velocityZone].low; i <= pDimDef->ranges[velocityZone].high; i++) { |
|
|
VelocityTable[i] = velocityZone; |
|
|
} |
|
|
} |
|
2131 |
} |
} |
2132 |
} |
} |
2133 |
} |
} |
2134 |
|
|
2135 |
|
// jump to start of the wave pool indices (if not already there) |
2136 |
|
File* file = (File*) GetParent()->GetParent(); |
2137 |
|
if (file->pVersion && file->pVersion->major == 3) |
2138 |
|
_3lnk->SetPos(68); // version 3 has a different 3lnk structure |
2139 |
|
else |
2140 |
|
_3lnk->SetPos(44); |
2141 |
|
|
2142 |
// load sample references |
// load sample references |
|
_3lnk->SetPos(44); // jump to start of the wave pool indices (if not already there) |
|
2143 |
for (uint i = 0; i < DimensionRegions; i++) { |
for (uint i = 0; i < DimensionRegions; i++) { |
2144 |
uint32_t wavepoolindex = _3lnk->ReadUint32(); |
uint32_t wavepoolindex = _3lnk->ReadUint32(); |
2145 |
pDimensionRegions[i]->pSample = GetSampleFromWavePool(wavepoolindex); |
pDimensionRegions[i]->pSample = GetSampleFromWavePool(wavepoolindex); |
2146 |
} |
} |
2147 |
} |
} |
2148 |
else throw gig::Exception("Mandatory <3lnk> chunk not found."); |
} |
2149 |
|
|
2150 |
|
/** |
2151 |
|
* Apply Region settings and all its DimensionRegions to the respective |
2152 |
|
* RIFF chunks. You have to call File::Save() to make changes persistent. |
2153 |
|
* |
2154 |
|
* Usually there is absolutely no need to call this method explicitly. |
2155 |
|
* It will be called automatically when File::Save() was called. |
2156 |
|
* |
2157 |
|
* @throws gig::Exception if samples cannot be dereferenced |
2158 |
|
*/ |
2159 |
|
void Region::UpdateChunks() { |
2160 |
|
// first update base class's chunks |
2161 |
|
DLS::Region::UpdateChunks(); |
2162 |
|
|
2163 |
|
// update dimension region's chunks |
2164 |
|
for (int i = 0; i < Dimensions; i++) |
2165 |
|
pDimensionRegions[i]->UpdateChunks(); |
2166 |
|
|
2167 |
|
File* pFile = (File*) GetParent()->GetParent(); |
2168 |
|
const int iMaxDimensions = (pFile->pVersion && pFile->pVersion->major == 3) ? 8 : 5; |
2169 |
|
const int iMaxDimensionRegions = (pFile->pVersion && pFile->pVersion->major == 3) ? 256 : 32; |
2170 |
|
|
2171 |
|
// make sure '3lnk' chunk exists |
2172 |
|
RIFF::Chunk* _3lnk = pCkRegion->GetSubChunk(CHUNK_ID_3LNK); |
2173 |
|
if (!_3lnk) { |
2174 |
|
const int _3lnkChunkSize = (pFile->pVersion && pFile->pVersion->major == 3) ? 1092 : 172; |
2175 |
|
_3lnk = pCkRegion->AddSubChunk(CHUNK_ID_3LNK, _3lnkChunkSize); |
2176 |
|
} |
2177 |
|
|
2178 |
|
// update dimension definitions in '3lnk' chunk |
2179 |
|
uint8_t* pData = (uint8_t*) _3lnk->LoadChunkData(); |
2180 |
|
for (int i = 0; i < iMaxDimensions; i++) { |
2181 |
|
pData[i * 8] = (uint8_t) pDimensionDefinitions[i].dimension; |
2182 |
|
pData[i * 8 + 1] = pDimensionDefinitions[i].bits; |
2183 |
|
// next 2 bytes unknown |
2184 |
|
pData[i * 8 + 4] = pDimensionDefinitions[i].zones; |
2185 |
|
// next 3 bytes unknown |
2186 |
|
} |
2187 |
|
|
2188 |
|
// update wave pool table in '3lnk' chunk |
2189 |
|
const int iWavePoolOffset = (pFile->pVersion && pFile->pVersion->major == 3) ? 68 : 44; |
2190 |
|
for (uint i = 0; i < iMaxDimensionRegions; i++) { |
2191 |
|
int iWaveIndex = -1; |
2192 |
|
if (i < DimensionRegions) { |
2193 |
|
if (!pFile->pSamples) throw gig::Exception("Could not update gig::Region, there are no samples"); |
2194 |
|
std::list<Sample*>::iterator iter = pFile->pSamples->begin(); |
2195 |
|
std::list<Sample*>::iterator end = pFile->pSamples->end(); |
2196 |
|
for (int index = 0; iter != end; ++iter, ++index) { |
2197 |
|
if (*iter == pDimensionRegions[i]->pSample) iWaveIndex = index; |
2198 |
|
break; |
2199 |
|
} |
2200 |
|
if (iWaveIndex < 0) throw gig::Exception("Could not update gig::Region, could not find DimensionRegion's sample"); |
2201 |
|
} |
2202 |
|
memcpy(&pData[iWavePoolOffset + i * 4], &iWaveIndex, 4); |
2203 |
|
} |
2204 |
} |
} |
2205 |
|
|
2206 |
void Region::LoadDimensionRegions(RIFF::List* rgn) { |
void Region::LoadDimensionRegions(RIFF::List* rgn) { |
2219 |
} |
} |
2220 |
} |
} |
2221 |
|
|
2222 |
|
void Region::UpdateVelocityTable(dimension_def_t* pDimDef) { |
2223 |
|
// get dimension's index |
2224 |
|
int iDimensionNr = -1; |
2225 |
|
for (int i = 0; i < Dimensions; i++) { |
2226 |
|
if (&pDimensionDefinitions[i] == pDimDef) { |
2227 |
|
iDimensionNr = i; |
2228 |
|
break; |
2229 |
|
} |
2230 |
|
} |
2231 |
|
if (iDimensionNr < 0) throw gig::Exception("Invalid dimension_def_t pointer"); |
2232 |
|
|
2233 |
|
uint8_t bits[8] = { 0 }; |
2234 |
|
int previousUpperLimit = -1; |
2235 |
|
for (int velocityZone = 0; velocityZone < pDimDef->zones; velocityZone++) { |
2236 |
|
bits[iDimensionNr] = velocityZone; |
2237 |
|
DimensionRegion* pDimRegion = GetDimensionRegionByBit(bits); |
2238 |
|
|
2239 |
|
pDimDef->ranges[velocityZone].low = previousUpperLimit + 1; |
2240 |
|
pDimDef->ranges[velocityZone].high = pDimRegion->VelocityUpperLimit; |
2241 |
|
previousUpperLimit = pDimDef->ranges[velocityZone].high; |
2242 |
|
// fill velocity table |
2243 |
|
for (int i = pDimDef->ranges[velocityZone].low; i <= pDimDef->ranges[velocityZone].high; i++) { |
2244 |
|
VelocityTable[i] = velocityZone; |
2245 |
|
} |
2246 |
|
} |
2247 |
|
} |
2248 |
|
|
2249 |
|
/** @brief Einstein would have dreamed of it - create a new dimension. |
2250 |
|
* |
2251 |
|
* Creates a new dimension with the dimension definition given by |
2252 |
|
* \a pDimDef. The appropriate amount of DimensionRegions will be created. |
2253 |
|
* There is a hard limit of dimensions and total amount of "bits" all |
2254 |
|
* dimensions can have. This limit is dependant to what gig file format |
2255 |
|
* version this file refers to. The gig v2 (and lower) format has a |
2256 |
|
* dimension limit and total amount of bits limit of 5, whereas the gig v3 |
2257 |
|
* format has a limit of 8. |
2258 |
|
* |
2259 |
|
* @param pDimDef - defintion of the new dimension |
2260 |
|
* @throws gig::Exception if dimension of the same type exists already |
2261 |
|
* @throws gig::Exception if amount of dimensions or total amount of |
2262 |
|
* dimension bits limit is violated |
2263 |
|
*/ |
2264 |
|
void Region::AddDimension(dimension_def_t* pDimDef) { |
2265 |
|
// check if max. amount of dimensions reached |
2266 |
|
File* file = (File*) GetParent()->GetParent(); |
2267 |
|
const int iMaxDimensions = (file->pVersion && file->pVersion->major == 3) ? 8 : 5; |
2268 |
|
if (Dimensions >= iMaxDimensions) |
2269 |
|
throw gig::Exception("Could not add new dimension, max. amount of " + ToString(iMaxDimensions) + " dimensions already reached"); |
2270 |
|
// check if max. amount of dimension bits reached |
2271 |
|
int iCurrentBits = 0; |
2272 |
|
for (int i = 0; i < Dimensions; i++) |
2273 |
|
iCurrentBits += pDimensionDefinitions[i].bits; |
2274 |
|
if (iCurrentBits >= iMaxDimensions) |
2275 |
|
throw gig::Exception("Could not add new dimension, max. amount of " + ToString(iMaxDimensions) + " dimension bits already reached"); |
2276 |
|
const int iNewBits = iCurrentBits + pDimDef->bits; |
2277 |
|
if (iNewBits > iMaxDimensions) |
2278 |
|
throw gig::Exception("Could not add new dimension, new dimension would exceed max. amount of " + ToString(iMaxDimensions) + " dimension bits"); |
2279 |
|
// check if there's already a dimensions of the same type |
2280 |
|
for (int i = 0; i < Dimensions; i++) |
2281 |
|
if (pDimensionDefinitions[i].dimension == pDimDef->dimension) |
2282 |
|
throw gig::Exception("Could not add new dimension, there is already a dimension of the same type"); |
2283 |
|
|
2284 |
|
// assign definition of new dimension |
2285 |
|
pDimensionDefinitions[Dimensions] = *pDimDef; |
2286 |
|
|
2287 |
|
// create new dimension region(s) for this new dimension |
2288 |
|
for (int i = 1 << iCurrentBits; i < 1 << iNewBits; i++) { |
2289 |
|
//TODO: maybe we should copy existing dimension regions if possible instead of simply creating new ones with default values |
2290 |
|
RIFF::List* pNewDimRgnListChunk = pCkRegion->AddSubList(LIST_TYPE_3EWL); |
2291 |
|
pDimensionRegions[i] = new DimensionRegion(pNewDimRgnListChunk); |
2292 |
|
DimensionRegions++; |
2293 |
|
} |
2294 |
|
|
2295 |
|
Dimensions++; |
2296 |
|
|
2297 |
|
// if this is a layer dimension, update 'Layers' attribute |
2298 |
|
if (pDimDef->dimension == dimension_layer) Layers = pDimDef->zones; |
2299 |
|
|
2300 |
|
// if this is velocity dimension and got custom defined ranges, update velocity table |
2301 |
|
if (pDimDef->dimension == dimension_velocity && |
2302 |
|
pDimDef->split_type == split_type_customvelocity) { |
2303 |
|
UpdateVelocityTable(pDimDef); |
2304 |
|
} |
2305 |
|
} |
2306 |
|
|
2307 |
|
/** @brief Delete an existing dimension. |
2308 |
|
* |
2309 |
|
* Deletes the dimension given by \a pDimDef and deletes all respective |
2310 |
|
* dimension regions, that is all dimension regions where the dimension's |
2311 |
|
* bit(s) part is greater than 0. In case of a 'sustain pedal' dimension |
2312 |
|
* for example this would delete all dimension regions for the case(s) |
2313 |
|
* where the sustain pedal is pressed down. |
2314 |
|
* |
2315 |
|
* @param pDimDef - dimension to delete |
2316 |
|
* @throws gig::Exception if given dimension cannot be found |
2317 |
|
*/ |
2318 |
|
void Region::DeleteDimension(dimension_def_t* pDimDef) { |
2319 |
|
// get dimension's index |
2320 |
|
int iDimensionNr = -1; |
2321 |
|
for (int i = 0; i < Dimensions; i++) { |
2322 |
|
if (&pDimensionDefinitions[i] == pDimDef) { |
2323 |
|
iDimensionNr = i; |
2324 |
|
break; |
2325 |
|
} |
2326 |
|
} |
2327 |
|
if (iDimensionNr < 0) throw gig::Exception("Invalid dimension_def_t pointer"); |
2328 |
|
|
2329 |
|
// get amount of bits below the dimension to delete |
2330 |
|
int iLowerBits = 0; |
2331 |
|
for (int i = 0; i < iDimensionNr; i++) |
2332 |
|
iLowerBits += pDimensionDefinitions[i].bits; |
2333 |
|
|
2334 |
|
// get amount ot bits above the dimension to delete |
2335 |
|
int iUpperBits = 0; |
2336 |
|
for (int i = iDimensionNr + 1; i < Dimensions; i++) |
2337 |
|
iUpperBits += pDimensionDefinitions[i].bits; |
2338 |
|
|
2339 |
|
// delete dimension regions which belong to the given dimension |
2340 |
|
// (that is where the dimension's bit > 0) |
2341 |
|
for (int iUpperBit = 0; iUpperBit < 1 << iUpperBits; iUpperBit++) { |
2342 |
|
for (int iObsoleteBit = 1; iObsoleteBit < 1 << pDimensionDefinitions[iDimensionNr].bits; iObsoleteBit++) { |
2343 |
|
for (int iLowerBit = 0; iLowerBit < 1 << iLowerBits; iLowerBit++) { |
2344 |
|
int iToDelete = iUpperBit << (pDimensionDefinitions[iDimensionNr].bits + iLowerBits) | |
2345 |
|
iObsoleteBit << iLowerBits | |
2346 |
|
iLowerBit; |
2347 |
|
delete pDimensionRegions[iToDelete]; |
2348 |
|
pDimensionRegions[iToDelete] = NULL; |
2349 |
|
DimensionRegions--; |
2350 |
|
} |
2351 |
|
} |
2352 |
|
} |
2353 |
|
|
2354 |
|
// defrag pDimensionRegions array |
2355 |
|
// (that is remove the NULL spaces within the pDimensionRegions array) |
2356 |
|
for (int iFrom = 2, iTo = 1; iFrom < 256 && iTo < 256 - 1; iTo++) { |
2357 |
|
if (!pDimensionRegions[iTo]) { |
2358 |
|
if (iFrom <= iTo) iFrom = iTo + 1; |
2359 |
|
while (!pDimensionRegions[iFrom] && iFrom < 256) iFrom++; |
2360 |
|
if (iFrom < 256 && pDimensionRegions[iFrom]) { |
2361 |
|
pDimensionRegions[iTo] = pDimensionRegions[iFrom]; |
2362 |
|
pDimensionRegions[iFrom] = NULL; |
2363 |
|
} |
2364 |
|
} |
2365 |
|
} |
2366 |
|
|
2367 |
|
// 'remove' dimension definition |
2368 |
|
for (int i = iDimensionNr + 1; i < Dimensions; i++) { |
2369 |
|
pDimensionDefinitions[i - 1] = pDimensionDefinitions[i]; |
2370 |
|
} |
2371 |
|
pDimensionDefinitions[Dimensions - 1].dimension = dimension_none; |
2372 |
|
pDimensionDefinitions[Dimensions - 1].bits = 0; |
2373 |
|
pDimensionDefinitions[Dimensions - 1].zones = 0; |
2374 |
|
if (pDimensionDefinitions[Dimensions - 1].ranges) { |
2375 |
|
delete[] pDimensionDefinitions[Dimensions - 1].ranges; |
2376 |
|
pDimensionDefinitions[Dimensions - 1].ranges = NULL; |
2377 |
|
} |
2378 |
|
|
2379 |
|
Dimensions--; |
2380 |
|
|
2381 |
|
// if this was a layer dimension, update 'Layers' attribute |
2382 |
|
if (pDimDef->dimension == dimension_layer) Layers = 1; |
2383 |
|
} |
2384 |
|
|
2385 |
Region::~Region() { |
Region::~Region() { |
2386 |
for (uint i = 0; i < Dimensions; i++) { |
for (uint i = 0; i < Dimensions; i++) { |
2387 |
if (pDimensionDefinitions[i].ranges) delete[] pDimensionDefinitions[i].ranges; |
if (pDimensionDefinitions[i].ranges) delete[] pDimensionDefinitions[i].ranges; |
2388 |
} |
} |
2389 |
for (int i = 0; i < 32; i++) { |
for (int i = 0; i < 256; i++) { |
2390 |
if (pDimensionRegions[i]) delete pDimensionRegions[i]; |
if (pDimensionRegions[i]) delete pDimensionRegions[i]; |
2391 |
} |
} |
2392 |
} |
} |
2404 |
* left channel, 1 for right channel or 0 for layer 0, 1 for layer 1, |
* left channel, 1 for right channel or 0 for layer 0, 1 for layer 1, |
2405 |
* etc.). |
* etc.). |
2406 |
* |
* |
2407 |
* @param Dim4Val MIDI controller value (0-127) for dimension 4 |
* @param DimValues MIDI controller values (0-127) for dimension 0 to 7 |
|
* @param Dim3Val MIDI controller value (0-127) for dimension 3 |
|
|
* @param Dim2Val MIDI controller value (0-127) for dimension 2 |
|
|
* @param Dim1Val MIDI controller value (0-127) for dimension 1 |
|
|
* @param Dim0Val MIDI controller value (0-127) for dimension 0 |
|
2408 |
* @returns adress to the DimensionRegion for the given situation |
* @returns adress to the DimensionRegion for the given situation |
2409 |
* @see pDimensionDefinitions |
* @see pDimensionDefinitions |
2410 |
* @see Dimensions |
* @see Dimensions |
2411 |
*/ |
*/ |
2412 |
DimensionRegion* Region::GetDimensionRegionByValue(uint Dim4Val, uint Dim3Val, uint Dim2Val, uint Dim1Val, uint Dim0Val) { |
DimensionRegion* Region::GetDimensionRegionByValue(const uint DimValues[8]) { |
2413 |
unsigned int bits[5] = {Dim0Val,Dim1Val,Dim2Val,Dim3Val,Dim4Val}; |
uint8_t bits[8] = { 0 }; |
2414 |
for (uint i = 0; i < Dimensions; i++) { |
for (uint i = 0; i < Dimensions; i++) { |
2415 |
|
bits[i] = DimValues[i]; |
2416 |
switch (pDimensionDefinitions[i].split_type) { |
switch (pDimensionDefinitions[i].split_type) { |
2417 |
case split_type_normal: |
case split_type_normal: |
2418 |
bits[i] /= pDimensionDefinitions[i].zone_size; |
bits[i] = uint8_t(bits[i] / pDimensionDefinitions[i].zone_size); |
2419 |
break; |
break; |
2420 |
case split_type_customvelocity: |
case split_type_customvelocity: |
2421 |
bits[i] = VelocityTable[bits[i]]; |
bits[i] = VelocityTable[bits[i]]; |
2422 |
break; |
break; |
2423 |
// else the value is already the sought dimension bit number |
case split_type_bit: // the value is already the sought dimension bit number |
2424 |
|
const uint8_t limiter_mask = (0xff << pDimensionDefinitions[i].bits) ^ 0xff; |
2425 |
|
bits[i] = bits[i] & limiter_mask; // just make sure the value don't uses more bits than allowed |
2426 |
|
break; |
2427 |
} |
} |
2428 |
} |
} |
2429 |
return GetDimensionRegionByBit(bits[4],bits[3],bits[2],bits[1],bits[0]); |
return GetDimensionRegionByBit(bits); |
2430 |
} |
} |
2431 |
|
|
2432 |
/** |
/** |
2434 |
* numbers (zone index). You usually use <i>GetDimensionRegionByValue</i> |
* numbers (zone index). You usually use <i>GetDimensionRegionByValue</i> |
2435 |
* instead of calling this method directly! |
* instead of calling this method directly! |
2436 |
* |
* |
2437 |
* @param Dim4Bit Bit number for dimension 4 |
* @param DimBits Bit numbers for dimension 0 to 7 |
|
* @param Dim3Bit Bit number for dimension 3 |
|
|
* @param Dim2Bit Bit number for dimension 2 |
|
|
* @param Dim1Bit Bit number for dimension 1 |
|
|
* @param Dim0Bit Bit number for dimension 0 |
|
2438 |
* @returns adress to the DimensionRegion for the given dimension |
* @returns adress to the DimensionRegion for the given dimension |
2439 |
* bit numbers |
* bit numbers |
2440 |
* @see GetDimensionRegionByValue() |
* @see GetDimensionRegionByValue() |
2441 |
*/ |
*/ |
2442 |
DimensionRegion* Region::GetDimensionRegionByBit(uint8_t Dim4Bit, uint8_t Dim3Bit, uint8_t Dim2Bit, uint8_t Dim1Bit, uint8_t Dim0Bit) { |
DimensionRegion* Region::GetDimensionRegionByBit(const uint8_t DimBits[8]) { |
2443 |
return *(pDimensionRegions + ((((((((Dim4Bit << pDimensionDefinitions[3].bits) | Dim3Bit) |
return pDimensionRegions[((((((DimBits[7] << pDimensionDefinitions[6].bits | DimBits[6]) |
2444 |
<< pDimensionDefinitions[2].bits) | Dim2Bit) |
<< pDimensionDefinitions[5].bits | DimBits[5]) |
2445 |
<< pDimensionDefinitions[1].bits) | Dim1Bit) |
<< pDimensionDefinitions[4].bits | DimBits[4]) |
2446 |
<< pDimensionDefinitions[0].bits) | Dim0Bit) ); |
<< pDimensionDefinitions[3].bits | DimBits[3]) |
2447 |
|
<< pDimensionDefinitions[2].bits | DimBits[2]) |
2448 |
|
<< pDimensionDefinitions[1].bits | DimBits[1]) |
2449 |
|
<< pDimensionDefinitions[0].bits | DimBits[0]]; |
2450 |
} |
} |
2451 |
|
|
2452 |
/** |
/** |
2463 |
else return static_cast<gig::Sample*>(pSample = GetSampleFromWavePool(WavePoolTableIndex)); |
else return static_cast<gig::Sample*>(pSample = GetSampleFromWavePool(WavePoolTableIndex)); |
2464 |
} |
} |
2465 |
|
|
2466 |
Sample* Region::GetSampleFromWavePool(unsigned int WavePoolTableIndex) { |
Sample* Region::GetSampleFromWavePool(unsigned int WavePoolTableIndex, progress_t* pProgress) { |
2467 |
|
if ((int32_t)WavePoolTableIndex == -1) return NULL; |
2468 |
File* file = (File*) GetParent()->GetParent(); |
File* file = (File*) GetParent()->GetParent(); |
2469 |
unsigned long soughtoffset = file->pWavePoolTable[WavePoolTableIndex]; |
unsigned long soughtoffset = file->pWavePoolTable[WavePoolTableIndex]; |
2470 |
Sample* sample = file->GetFirstSample(); |
unsigned long soughtfileno = file->pWavePoolTableHi[WavePoolTableIndex]; |
2471 |
|
Sample* sample = file->GetFirstSample(pProgress); |
2472 |
while (sample) { |
while (sample) { |
2473 |
if (sample->ulWavePoolOffset == soughtoffset) return static_cast<gig::Sample*>(pSample = sample); |
if (sample->ulWavePoolOffset == soughtoffset && |
2474 |
|
sample->FileNo == soughtfileno) return static_cast<gig::Sample*>(pSample = sample); |
2475 |
sample = file->GetNextSample(); |
sample = file->GetNextSample(); |
2476 |
} |
} |
2477 |
return NULL; |
return NULL; |
2482 |
// *************** Instrument *************** |
// *************** Instrument *************** |
2483 |
// * |
// * |
2484 |
|
|
2485 |
Instrument::Instrument(File* pFile, RIFF::List* insList) : DLS::Instrument((DLS::File*)pFile, insList) { |
Instrument::Instrument(File* pFile, RIFF::List* insList, progress_t* pProgress) : DLS::Instrument((DLS::File*)pFile, insList) { |
2486 |
// Initialization |
// Initialization |
2487 |
for (int i = 0; i < 128; i++) RegionKeyTable[i] = NULL; |
for (int i = 0; i < 128; i++) RegionKeyTable[i] = NULL; |
2488 |
RegionIndex = -1; |
RegionIndex = -1; |
2501 |
DimensionKeyRange.low = dimkeystart >> 1; |
DimensionKeyRange.low = dimkeystart >> 1; |
2502 |
DimensionKeyRange.high = _3ewg->ReadUint8(); |
DimensionKeyRange.high = _3ewg->ReadUint8(); |
2503 |
} |
} |
|
else throw gig::Exception("Mandatory <3ewg> chunk not found."); |
|
2504 |
} |
} |
|
else throw gig::Exception("Mandatory <lart> list chunk not found."); |
|
2505 |
|
|
|
RIFF::List* lrgn = insList->GetSubList(LIST_TYPE_LRGN); |
|
|
if (!lrgn) throw gig::Exception("Mandatory chunks in <ins > chunk not found."); |
|
2506 |
pRegions = new Region*[Regions]; |
pRegions = new Region*[Regions]; |
2507 |
RIFF::List* rgn = lrgn->GetFirstSubList(); |
RIFF::List* lrgn = insList->GetSubList(LIST_TYPE_LRGN); |
2508 |
unsigned int iRegion = 0; |
if (lrgn) { |
2509 |
while (rgn) { |
for (uint i = 0; i < Regions; i++) pRegions[i] = NULL; |
2510 |
if (rgn->GetListType() == LIST_TYPE_RGN) { |
RIFF::List* rgn = lrgn->GetFirstSubList(); |
2511 |
pRegions[iRegion] = new Region(this, rgn); |
unsigned int iRegion = 0; |
2512 |
iRegion++; |
while (rgn) { |
2513 |
|
if (rgn->GetListType() == LIST_TYPE_RGN) { |
2514 |
|
__notify_progress(pProgress, (float) iRegion / (float) Regions); |
2515 |
|
pRegions[iRegion] = new Region(this, rgn); |
2516 |
|
iRegion++; |
2517 |
|
} |
2518 |
|
rgn = lrgn->GetNextSubList(); |
2519 |
} |
} |
2520 |
rgn = lrgn->GetNextSubList(); |
// Creating Region Key Table for fast lookup |
2521 |
|
UpdateRegionKeyTable(); |
2522 |
} |
} |
2523 |
|
|
2524 |
// Creating Region Key Table for fast lookup |
__notify_progress(pProgress, 1.0f); // notify done |
2525 |
|
} |
2526 |
|
|
2527 |
|
void Instrument::UpdateRegionKeyTable() { |
2528 |
for (uint iReg = 0; iReg < Regions; iReg++) { |
for (uint iReg = 0; iReg < Regions; iReg++) { |
2529 |
for (int iKey = pRegions[iReg]->KeyRange.low; iKey <= pRegions[iReg]->KeyRange.high; iKey++) { |
for (int iKey = pRegions[iReg]->KeyRange.low; iKey <= pRegions[iReg]->KeyRange.high; iKey++) { |
2530 |
RegionKeyTable[iKey] = pRegions[iReg]; |
RegionKeyTable[iKey] = pRegions[iReg]; |
2537 |
if (pRegions) { |
if (pRegions) { |
2538 |
if (pRegions[i]) delete (pRegions[i]); |
if (pRegions[i]) delete (pRegions[i]); |
2539 |
} |
} |
|
delete[] pRegions; |
|
2540 |
} |
} |
2541 |
|
if (pRegions) delete[] pRegions; |
2542 |
|
} |
2543 |
|
|
2544 |
|
/** |
2545 |
|
* Apply Instrument with all its Regions to the respective RIFF chunks. |
2546 |
|
* You have to call File::Save() to make changes persistent. |
2547 |
|
* |
2548 |
|
* Usually there is absolutely no need to call this method explicitly. |
2549 |
|
* It will be called automatically when File::Save() was called. |
2550 |
|
* |
2551 |
|
* @throws gig::Exception if samples cannot be dereferenced |
2552 |
|
*/ |
2553 |
|
void Instrument::UpdateChunks() { |
2554 |
|
// first update base classes' chunks |
2555 |
|
DLS::Instrument::UpdateChunks(); |
2556 |
|
|
2557 |
|
// update Regions' chunks |
2558 |
|
for (int i = 0; i < Regions; i++) |
2559 |
|
pRegions[i]->UpdateChunks(); |
2560 |
|
|
2561 |
|
// make sure 'lart' RIFF list chunk exists |
2562 |
|
RIFF::List* lart = pCkInstrument->GetSubList(LIST_TYPE_LART); |
2563 |
|
if (!lart) lart = pCkInstrument->AddSubList(LIST_TYPE_LART); |
2564 |
|
// make sure '3ewg' RIFF chunk exists |
2565 |
|
RIFF::Chunk* _3ewg = lart->GetSubChunk(CHUNK_ID_3EWG); |
2566 |
|
if (!_3ewg) _3ewg = lart->AddSubChunk(CHUNK_ID_3EWG, 12); |
2567 |
|
// update '3ewg' RIFF chunk |
2568 |
|
uint8_t* pData = (uint8_t*) _3ewg->LoadChunkData(); |
2569 |
|
memcpy(&pData[0], &EffectSend, 2); |
2570 |
|
memcpy(&pData[2], &Attenuation, 4); |
2571 |
|
memcpy(&pData[6], &FineTune, 2); |
2572 |
|
memcpy(&pData[8], &PitchbendRange, 2); |
2573 |
|
const uint8_t dimkeystart = (PianoReleaseMode) ? 0x01 : 0x00 | |
2574 |
|
DimensionKeyRange.low << 1; |
2575 |
|
memcpy(&pData[10], &dimkeystart, 1); |
2576 |
|
memcpy(&pData[11], &DimensionKeyRange.high, 1); |
2577 |
} |
} |
2578 |
|
|
2579 |
/** |
/** |
2615 |
* @see GetFirstRegion() |
* @see GetFirstRegion() |
2616 |
*/ |
*/ |
2617 |
Region* Instrument::GetNextRegion() { |
Region* Instrument::GetNextRegion() { |
2618 |
if (RegionIndex < 0 || RegionIndex >= Regions) return NULL; |
if (RegionIndex < 0 || uint32_t(RegionIndex) >= Regions) return NULL; |
2619 |
return pRegions[RegionIndex++]; |
return pRegions[RegionIndex++]; |
2620 |
} |
} |
2621 |
|
|
2622 |
|
Region* Instrument::AddRegion() { |
2623 |
|
// create new Region object (and its RIFF chunks) |
2624 |
|
RIFF::List* lrgn = pCkInstrument->GetSubList(LIST_TYPE_LRGN); |
2625 |
|
if (!lrgn) lrgn = pCkInstrument->AddSubList(LIST_TYPE_LRGN); |
2626 |
|
RIFF::List* rgn = lrgn->AddSubList(LIST_TYPE_RGN); |
2627 |
|
Region* pNewRegion = new Region(this, rgn); |
2628 |
|
// resize 'pRegions' array (increase by one) |
2629 |
|
Region** pNewRegions = new Region*[Regions + 1]; |
2630 |
|
memcpy(pNewRegions, pRegions, Regions * sizeof(Region*)); |
2631 |
|
// add new Region object |
2632 |
|
pNewRegions[Regions] = pNewRegion; |
2633 |
|
// replace old 'pRegions' array by the new increased array |
2634 |
|
if (pRegions) delete[] pRegions; |
2635 |
|
pRegions = pNewRegions; |
2636 |
|
Regions++; |
2637 |
|
// update Region key table for fast lookup |
2638 |
|
UpdateRegionKeyTable(); |
2639 |
|
// done |
2640 |
|
return pNewRegion; |
2641 |
|
} |
2642 |
|
|
2643 |
|
void Instrument::DeleteRegion(Region* pRegion) { |
2644 |
|
if (!pRegions) return; |
2645 |
|
int iOffset = 0; |
2646 |
|
// resize 'pRegions' array (decrease by one) |
2647 |
|
Region** pNewRegions = new Region*[Regions - 1]; |
2648 |
|
for (int i = 0; i < Regions; i++) { |
2649 |
|
if (pRegions[i] == pRegion) { // found Region to delete |
2650 |
|
iOffset = 1; |
2651 |
|
delete pRegion; |
2652 |
|
} |
2653 |
|
if (i < Regions - 1) pNewRegions[i] = pRegions[i + iOffset]; |
2654 |
|
} |
2655 |
|
if (!iOffset) throw gig::Exception("There is no such gig::Region to delete"); |
2656 |
|
// replace old 'pRegions' array by the new decreased array |
2657 |
|
if (pRegions) delete[] pRegions; |
2658 |
|
pRegions = pNewRegions; |
2659 |
|
Regions--; |
2660 |
|
// update Region key table for fast lookup |
2661 |
|
UpdateRegionKeyTable(); |
2662 |
|
} |
2663 |
|
|
2664 |
|
|
2665 |
|
|
2666 |
// *************** File *************** |
// *************** File *************** |
2667 |
// * |
// * |
2668 |
|
|
2669 |
|
File::File() : DLS::File() { |
2670 |
|
pSamples = NULL; |
2671 |
|
pInstruments = NULL; |
2672 |
|
} |
2673 |
|
|
2674 |
File::File(RIFF::File* pRIFF) : DLS::File(pRIFF) { |
File::File(RIFF::File* pRIFF) : DLS::File(pRIFF) { |
2675 |
pSamples = NULL; |
pSamples = NULL; |
2676 |
pInstruments = NULL; |
pInstruments = NULL; |
2677 |
} |
} |
2678 |
|
|
2679 |
Sample* File::GetFirstSample() { |
File::~File() { |
2680 |
if (!pSamples) LoadSamples(); |
// free samples |
2681 |
|
if (pSamples) { |
2682 |
|
SamplesIterator = pSamples->begin(); |
2683 |
|
while (SamplesIterator != pSamples->end() ) { |
2684 |
|
delete (*SamplesIterator); |
2685 |
|
SamplesIterator++; |
2686 |
|
} |
2687 |
|
pSamples->clear(); |
2688 |
|
delete pSamples; |
2689 |
|
|
2690 |
|
} |
2691 |
|
// free instruments |
2692 |
|
if (pInstruments) { |
2693 |
|
InstrumentsIterator = pInstruments->begin(); |
2694 |
|
while (InstrumentsIterator != pInstruments->end() ) { |
2695 |
|
delete (*InstrumentsIterator); |
2696 |
|
InstrumentsIterator++; |
2697 |
|
} |
2698 |
|
pInstruments->clear(); |
2699 |
|
delete pInstruments; |
2700 |
|
} |
2701 |
|
// free extension files |
2702 |
|
for (std::list<RIFF::File*>::iterator i = ExtensionFiles.begin() ; i != ExtensionFiles.end() ; i++) |
2703 |
|
delete *i; |
2704 |
|
} |
2705 |
|
|
2706 |
|
Sample* File::GetFirstSample(progress_t* pProgress) { |
2707 |
|
if (!pSamples) LoadSamples(pProgress); |
2708 |
if (!pSamples) return NULL; |
if (!pSamples) return NULL; |
2709 |
SamplesIterator = pSamples->begin(); |
SamplesIterator = pSamples->begin(); |
2710 |
return static_cast<gig::Sample*>( (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL ); |
return static_cast<gig::Sample*>( (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL ); |
2716 |
return static_cast<gig::Sample*>( (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL ); |
return static_cast<gig::Sample*>( (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL ); |
2717 |
} |
} |
2718 |
|
|
2719 |
void File::LoadSamples() { |
/** @brief Add a new sample. |
2720 |
RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL); |
* |
2721 |
if (wvpl) { |
* This will create a new Sample object for the gig file. You have to |
2722 |
unsigned long wvplFileOffset = wvpl->GetFilePos(); |
* call Save() to make this persistent to the file. |
2723 |
RIFF::List* wave = wvpl->GetFirstSubList(); |
* |
2724 |
while (wave) { |
* @returns pointer to new Sample object |
2725 |
if (wave->GetListType() == LIST_TYPE_WAVE) { |
*/ |
2726 |
if (!pSamples) pSamples = new SampleList; |
Sample* File::AddSample() { |
2727 |
unsigned long waveFileOffset = wave->GetFilePos(); |
if (!pSamples) LoadSamples(); |
2728 |
pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset)); |
__ensureMandatoryChunksExist(); |
2729 |
|
RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL); |
2730 |
|
// create new Sample object and its respective 'wave' list chunk |
2731 |
|
if (!pSamples) pSamples = new SampleList; |
2732 |
|
RIFF::List* wave = wvpl->AddSubList(LIST_TYPE_WAVE); |
2733 |
|
Sample* pSample = new Sample(this, wave, 0 /*arbitrary value, we update offsets when we save*/); |
2734 |
|
pSamples->push_back(pSample); |
2735 |
|
return pSample; |
2736 |
|
} |
2737 |
|
|
2738 |
|
/** @brief Delete a sample. |
2739 |
|
* |
2740 |
|
* This will delete the given Sample object from the gig file. You have |
2741 |
|
* to call Save() to make this persistent to the file. |
2742 |
|
* |
2743 |
|
* @param pSample - sample to delete |
2744 |
|
* @throws gig::Exception if given sample could not be found |
2745 |
|
*/ |
2746 |
|
void File::DeleteSample(Sample* pSample) { |
2747 |
|
if (!pSamples) throw gig::Exception("Could not delete sample as there are no samples"); |
2748 |
|
SampleList::iterator iter = find(pSamples->begin(), pSamples->end(), pSample); |
2749 |
|
if (iter == pSamples->end()) throw gig::Exception("Could not delete sample, could not find given sample"); |
2750 |
|
pSamples->erase(iter); |
2751 |
|
delete pSample; |
2752 |
|
} |
2753 |
|
|
2754 |
|
void File::LoadSamples(progress_t* pProgress) { |
2755 |
|
RIFF::File* file = pRIFF; |
2756 |
|
|
2757 |
|
// just for progress calculation |
2758 |
|
int iSampleIndex = 0; |
2759 |
|
int iTotalSamples = WavePoolCount; |
2760 |
|
|
2761 |
|
// check if samples should be loaded from extension files |
2762 |
|
int lastFileNo = 0; |
2763 |
|
for (int i = 0 ; i < WavePoolCount ; i++) { |
2764 |
|
if (pWavePoolTableHi[i] > lastFileNo) lastFileNo = pWavePoolTableHi[i]; |
2765 |
|
} |
2766 |
|
String name(pRIFF->GetFileName()); |
2767 |
|
int nameLen = name.length(); |
2768 |
|
char suffix[6]; |
2769 |
|
if (nameLen > 4 && name.substr(nameLen - 4) == ".gig") nameLen -= 4; |
2770 |
|
|
2771 |
|
for (int fileNo = 0 ; ; ) { |
2772 |
|
RIFF::List* wvpl = file->GetSubList(LIST_TYPE_WVPL); |
2773 |
|
if (wvpl) { |
2774 |
|
unsigned long wvplFileOffset = wvpl->GetFilePos(); |
2775 |
|
RIFF::List* wave = wvpl->GetFirstSubList(); |
2776 |
|
while (wave) { |
2777 |
|
if (wave->GetListType() == LIST_TYPE_WAVE) { |
2778 |
|
// notify current progress |
2779 |
|
const float subprogress = (float) iSampleIndex / (float) iTotalSamples; |
2780 |
|
__notify_progress(pProgress, subprogress); |
2781 |
|
|
2782 |
|
if (!pSamples) pSamples = new SampleList; |
2783 |
|
unsigned long waveFileOffset = wave->GetFilePos(); |
2784 |
|
pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset, fileNo)); |
2785 |
|
|
2786 |
|
iSampleIndex++; |
2787 |
|
} |
2788 |
|
wave = wvpl->GetNextSubList(); |
2789 |
} |
} |
2790 |
wave = wvpl->GetNextSubList(); |
|
2791 |
|
if (fileNo == lastFileNo) break; |
2792 |
|
|
2793 |
|
// open extension file (*.gx01, *.gx02, ...) |
2794 |
|
fileNo++; |
2795 |
|
sprintf(suffix, ".gx%02d", fileNo); |
2796 |
|
name.replace(nameLen, 5, suffix); |
2797 |
|
file = new RIFF::File(name); |
2798 |
|
ExtensionFiles.push_back(file); |
2799 |
} |
} |
2800 |
|
else throw gig::Exception("Mandatory <wvpl> chunk not found."); |
2801 |
} |
} |
2802 |
else throw gig::Exception("Mandatory <wvpl> chunk not found."); |
|
2803 |
|
__notify_progress(pProgress, 1.0); // notify done |
2804 |
} |
} |
2805 |
|
|
2806 |
Instrument* File::GetFirstInstrument() { |
Instrument* File::GetFirstInstrument() { |
2819 |
/** |
/** |
2820 |
* Returns the instrument with the given index. |
* Returns the instrument with the given index. |
2821 |
* |
* |
2822 |
|
* @param index - number of the sought instrument (0..n) |
2823 |
|
* @param pProgress - optional: callback function for progress notification |
2824 |
* @returns sought instrument or NULL if there's no such instrument |
* @returns sought instrument or NULL if there's no such instrument |
2825 |
*/ |
*/ |
2826 |
Instrument* File::GetInstrument(uint index) { |
Instrument* File::GetInstrument(uint index, progress_t* pProgress) { |
2827 |
if (!pInstruments) LoadInstruments(); |
if (!pInstruments) { |
2828 |
|
// TODO: hack - we simply load ALL samples here, it would have been done in the Region constructor anyway (ATM) |
2829 |
|
|
2830 |
|
// sample loading subtask |
2831 |
|
progress_t subprogress; |
2832 |
|
__divide_progress(pProgress, &subprogress, 3.0f, 0.0f); // randomly schedule 33% for this subtask |
2833 |
|
__notify_progress(&subprogress, 0.0f); |
2834 |
|
GetFirstSample(&subprogress); // now force all samples to be loaded |
2835 |
|
__notify_progress(&subprogress, 1.0f); |
2836 |
|
|
2837 |
|
// instrument loading subtask |
2838 |
|
if (pProgress && pProgress->callback) { |
2839 |
|
subprogress.__range_min = subprogress.__range_max; |
2840 |
|
subprogress.__range_max = pProgress->__range_max; // schedule remaining percentage for this subtask |
2841 |
|
} |
2842 |
|
__notify_progress(&subprogress, 0.0f); |
2843 |
|
LoadInstruments(&subprogress); |
2844 |
|
__notify_progress(&subprogress, 1.0f); |
2845 |
|
} |
2846 |
if (!pInstruments) return NULL; |
if (!pInstruments) return NULL; |
2847 |
InstrumentsIterator = pInstruments->begin(); |
InstrumentsIterator = pInstruments->begin(); |
2848 |
for (uint i = 0; InstrumentsIterator != pInstruments->end(); i++) { |
for (uint i = 0; InstrumentsIterator != pInstruments->end(); i++) { |
2852 |
return NULL; |
return NULL; |
2853 |
} |
} |
2854 |
|
|
2855 |
void File::LoadInstruments() { |
/** @brief Add a new instrument definition. |
2856 |
|
* |
2857 |
|
* This will create a new Instrument object for the gig file. You have |
2858 |
|
* to call Save() to make this persistent to the file. |
2859 |
|
* |
2860 |
|
* @returns pointer to new Instrument object |
2861 |
|
*/ |
2862 |
|
Instrument* File::AddInstrument() { |
2863 |
|
if (!pInstruments) LoadInstruments(); |
2864 |
|
__ensureMandatoryChunksExist(); |
2865 |
|
if (!pInstruments) pInstruments = new InstrumentList; |
2866 |
|
RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS); |
2867 |
|
RIFF::List* lstInstr = lstInstruments->AddSubList(LIST_TYPE_INS); |
2868 |
|
Instrument* pInstrument = new Instrument(this, lstInstr); |
2869 |
|
pInstruments->push_back(pInstrument); |
2870 |
|
return pInstrument; |
2871 |
|
} |
2872 |
|
|
2873 |
|
/** @brief Delete an instrument. |
2874 |
|
* |
2875 |
|
* This will delete the given Instrument object from the gig file. You |
2876 |
|
* have to call Save() to make this persistent to the file. |
2877 |
|
* |
2878 |
|
* @param pInstrument - instrument to delete |
2879 |
|
* @throws gig::Excption if given instrument could not be found |
2880 |
|
*/ |
2881 |
|
void File::DeleteInstrument(Instrument* pInstrument) { |
2882 |
|
if (!pInstruments) throw gig::Exception("Could not delete instrument as there are no instruments"); |
2883 |
|
InstrumentList::iterator iter = find(pInstruments->begin(), pInstruments->end(), pInstrument); |
2884 |
|
if (iter == pInstruments->end()) throw gig::Exception("Could not delete instrument, could not find given instrument"); |
2885 |
|
pInstruments->erase(iter); |
2886 |
|
delete pInstrument; |
2887 |
|
} |
2888 |
|
|
2889 |
|
void File::LoadInstruments(progress_t* pProgress) { |
2890 |
RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS); |
RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS); |
2891 |
if (lstInstruments) { |
if (lstInstruments) { |
2892 |
|
int iInstrumentIndex = 0; |
2893 |
RIFF::List* lstInstr = lstInstruments->GetFirstSubList(); |
RIFF::List* lstInstr = lstInstruments->GetFirstSubList(); |
2894 |
while (lstInstr) { |
while (lstInstr) { |
2895 |
if (lstInstr->GetListType() == LIST_TYPE_INS) { |
if (lstInstr->GetListType() == LIST_TYPE_INS) { |
2896 |
|
// notify current progress |
2897 |
|
const float localProgress = (float) iInstrumentIndex / (float) Instruments; |
2898 |
|
__notify_progress(pProgress, localProgress); |
2899 |
|
|
2900 |
|
// divide local progress into subprogress for loading current Instrument |
2901 |
|
progress_t subprogress; |
2902 |
|
__divide_progress(pProgress, &subprogress, Instruments, iInstrumentIndex); |
2903 |
|
|
2904 |
if (!pInstruments) pInstruments = new InstrumentList; |
if (!pInstruments) pInstruments = new InstrumentList; |
2905 |
pInstruments->push_back(new Instrument(this, lstInstr)); |
pInstruments->push_back(new Instrument(this, lstInstr, &subprogress)); |
2906 |
|
|
2907 |
|
iInstrumentIndex++; |
2908 |
} |
} |
2909 |
lstInstr = lstInstruments->GetNextSubList(); |
lstInstr = lstInstruments->GetNextSubList(); |
2910 |
} |
} |
2911 |
|
__notify_progress(pProgress, 1.0); // notify done |
2912 |
} |
} |
2913 |
else throw gig::Exception("Mandatory <lins> list chunk not found."); |
else throw gig::Exception("Mandatory <lins> list chunk not found."); |
2914 |
} |
} |
2925 |
std::cout << "gig::Exception: " << Message << std::endl; |
std::cout << "gig::Exception: " << Message << std::endl; |
2926 |
} |
} |
2927 |
|
|
2928 |
|
|
2929 |
|
// *************** functions *************** |
2930 |
|
// * |
2931 |
|
|
2932 |
|
/** |
2933 |
|
* Returns the name of this C++ library. This is usually "libgig" of |
2934 |
|
* course. This call is equivalent to RIFF::libraryName() and |
2935 |
|
* DLS::libraryName(). |
2936 |
|
*/ |
2937 |
|
String libraryName() { |
2938 |
|
return PACKAGE; |
2939 |
|
} |
2940 |
|
|
2941 |
|
/** |
2942 |
|
* Returns version of this C++ library. This call is equivalent to |
2943 |
|
* RIFF::libraryVersion() and DLS::libraryVersion(). |
2944 |
|
*/ |
2945 |
|
String libraryVersion() { |
2946 |
|
return VERSION; |
2947 |
|
} |
2948 |
|
|
2949 |
} // namespace gig |
} // namespace gig |