Mercurial > hg > dmlib
view minijss/jmix_c_in.c @ 1896:f80b2dc77c30
Work begins on IFF ILBM/PBM image writer. It is pretty broken, some things
will not work and some things are hardcoded. The ByteRun1 compression
implementation is somewhat inefficient. Interleaved files do not work yet.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Tue, 26 Jun 2018 03:13:38 +0300 |
parents | 95eb6285f45c |
children |
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/* * miniJSS - Mixing routines in C * Programmed and designed by Matti 'ccr' Hamalainen * (C) Copyright 2006-2015 Tecnic Software productions (TNSP) */ //#define JMIXER_DEBUG fprintf(stderr, "[%.8x:%.8x / %.8x]: %d\n", FP_GETH32(tmpPos), FP_GETL32(tmpPos), endPos, sp[FP_GETH32(tmpPos)]); #define JMIXER_DEBUG #define JMIXER_ADDBUF_TYPE Sint32 /* Mono / Linear Interpolation */ #define JMIXER_SAMPLE_TYPE Sint16 #define JMIXER_INIT #define JMIXER_FUNC \ const Sint32 vol = (FP_GETH32(tmpVolume) * mixer->globalVol) / 256; \ memmove(&tl[0], &tl[1], 4 * sizeof(tl[0])); \ tl[4] = (((Sint32) sp[FP_GETH32(tmpPos)]) * vol * 3 + tl[3] * 2 + tl[2] + tl[1] + tl[0]) / (256 * 8); \ *(ap++) += tl[4]; #define JMIXER_NAME jvmMix_Mono_C_FW #define JMIXER_NEXT FP_ADD(tmpPos, tmpDelta); #define JMIXER_NEXT_RAMP FP_ADD(tmpPos, tmpDelta); FP_ADD(tmpVolume, tmpDeltaV); #define JMIXER_ENDCOND (tmpPos.dw < endPos.dw) #include "jmixtmpl_c.h" #define JMIXER_NAME jvmMix_Mono_C_BW #define JMIXER_NEXT FP_SUB(tmpPos, tmpDelta); #define JMIXER_NEXT_RAMP FP_SUB(tmpPos, tmpDelta); FP_ADD(tmpVolume, tmpDeltaV); #define JMIXER_ENDCOND (tmpPos.dw > endPos.dw) #include "jmixtmpl_c.h" #undef JMIXER_SAMPLE_TYPE #undef JMIXER_INIT #undef JMIXER_FUNC /* Stereo / Linear Interpolation */ #define JMIXER_SAMPLE_TYPE Sint16 #define JMIXER_INIT #define JMIXER_FUNC \ const Sint32 vol_l = (FP_GETH32(tmpVolume) * mixer->globalVol) / 256, \ vol_r = (FP_GETH32(tmpVolume) * mixer->globalVol) / 256; \ memmove(&tl[0], &tl[1], 4 * sizeof(tl[0])); \ memmove(&tr[0], &tr[1], 4 * sizeof(tr[0])); \ tl[4] = (((Sint32) sp[FP_GETH32(tmpPos)]) * vol_l * 3 + tl[3] * 2 + tl[2] + tl[1] + tl[0]) / (256 * 8); \ *(ap++) += tl[4]; \ tr[4] = (((Sint32) sp[FP_GETH32(tmpPos)]) * vol_r * 3 + tr[3] * 2 + tr[2] + tr[1] + tr[0]) / (256 * 8); \ *(ap++) += tr[4]; #define JMIXER_NAME jvmMix_Stereo_C_FW #define JMIXER_NEXT FP_ADD(tmpPos, tmpDelta); #define JMIXER_NEXT_RAMP FP_ADD(tmpPos, tmpDelta); FP_ADD(tmpVolume, tmpDeltaV); #define JMIXER_ENDCOND (tmpPos.dw < endPos.dw) #include "jmixtmpl_c.h" #define JMIXER_NAME jvmMix_Stereo_C_BW #define JMIXER_NEXT FP_SUB(tmpPos, tmpDelta); #define JMIXER_NEXT_RAMP FP_SUB(tmpPos, tmpDelta); FP_ADD(tmpVolume, tmpDeltaV); #define JMIXER_ENDCOND (tmpPos.dw > endPos.dw) #include "jmixtmpl_c.h" #undef JMIXER_SAMPLE_TYPE #undef JMIXER_INIT #undef JMIXER_FUNC /* Post processing functions */ #define JMIXER_CLAMP \ if (t < JVM_LIMIT_16_NEG) t = JVM_LIMIT_16_NEG; else \ if (t > JVM_LIMIT_16_POS) t = JVM_LIMIT_16_POS; #define JMIXER_NAME jvmPostProcess_U8_C #define JMIXER_TYPE Uint8 #define JMIXER_FUNCTION *(sp++) = (t + JVM_ADD_16) >> 8; #include "jmix_post_c.h" #define JMIXER_NAME jvmPostProcess_S8_C #define JMIXER_TYPE Sint8 #define JMIXER_FUNCTION *(sp++) = t >> 8; #include "jmix_post_c.h" #define JMIXER_NAME jvmPostProcess_U16_C #define JMIXER_TYPE Uint16 #define JMIXER_FUNCTION *(sp++) = t + JVM_ADD_16; #include "jmix_post_c.h" #define JMIXER_NAME jvmPostProcess_S16_C #define JMIXER_TYPE Sint16 #define JMIXER_FUNCTION *(sp++) = t; #include "jmix_post_c.h"