diff options
author | Eugene Sandulenko | 2011-06-22 00:20:05 +0300 |
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committer | Eugene Sandulenko | 2011-06-22 10:20:43 +0300 |
commit | c288d6d20729563c6ce3416fd641947a35562469 (patch) | |
tree | 32993a71be87a48d95386f86aa22dfe01bb5137b /engines/lastexpress/game/sound.cpp | |
parent | 25513893044032b2595992936e1e6011889197fd (diff) | |
download | scummvm-rg350-c288d6d20729563c6ce3416fd641947a35562469.tar.gz scummvm-rg350-c288d6d20729563c6ce3416fd641947a35562469.tar.bz2 scummvm-rg350-c288d6d20729563c6ce3416fd641947a35562469.zip |
LASTEXPRESS: Implement sound filters. Still not hooked in.
Diffstat (limited to 'engines/lastexpress/game/sound.cpp')
-rw-r--r-- | engines/lastexpress/game/sound.cpp | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/engines/lastexpress/game/sound.cpp b/engines/lastexpress/game/sound.cpp index 3f98ac79ea..b8d2755907 100644 --- a/engines/lastexpress/game/sound.cpp +++ b/engines/lastexpress/game/sound.cpp @@ -1948,4 +1948,355 @@ void SoundManager::stopAllSound() { (*i)->soundStream->stop(); } +////////////////////////////////////////////////////////////////////////// +// Sound filter +////////////////////////////////////////////////////////////////////////// + +static int filterData[1424] = { + 0, 0, 0, 0, 128, 256, 384, 512, 0, 0, 0, 0, 128, 256, + 384, 512, 0, 0, 0, 0, 192, 320, 448, 576, 0, 0, 0, 0, + 192, 320, 448, 576, 64, 64, 64, 64, 256, 384, 512, 640, + 64, 64, 64, 64, 256, 384, 512, 640, 128, 128, 128, 128, + 320, 448, 576, 704, 128, 128, 128, 128, 320, 448, 576, + 704, 192, 192, 192, 192, 384, 512, 640, 768, 192, 192, + 192, 192, 384, 512, 640, 768, 256, 256, 256, 256, 448, + 576, 704, 832, 256, 256, 256, 256, 448, 576, 704, 832, + 320, 320, 320, 320, 512, 640, 768, 896, 320, 320, 320, + 320, 512, 640, 768, 896, 384, 384, 384, 384, 576, 704, + 832, 960, 384, 384, 384, 384, 576, 704, 832, 960, 448, + 448, 448, 448, 640, 768, 896, 1024, 448, 448, 448, 448, + 640, 768, 896, 1024, 512, 512, 512, 512, 704, 832, 960, + 1088, 512, 512, 512, 512, 704, 832, 960, 1088, 576, + 576, 576, 576, 768, 896, 1024, 1152, 576, 576, 576, + 576, 768, 896, 1024, 1152, 640, 640, 640, 640, 832, + 960, 1088, 1216, 640, 640, 640, 640, 832, 960, 1088, + 1216, 704, 704, 704, 704, 896, 1024, 1152, 1280, 704, + 704, 704, 704, 896, 1024, 1152, 1280, 768, 768, 768, + 768, 960, 1088, 1216, 1344, 768, 768, 768, 768, 960, + 1088, 1216, 1344, 832, 832, 832, 832, 1024, 1152, 1280, + 1408, 832, 832, 832, 832, 1024, 1152, 1280, 1408, 896, + 896, 896, 896, 1088, 1216, 1344, 1472, 896, 896, 896, + 896, 1088, 1216, 1344, 1472, 960, 960, 960, 960, 1152, + 1280, 1408, 1536, 960, 960, 960, 960, 1152, 1280, 1408, + 1536, 1024, 1024, 1024, 1024, 1216, 1344, 1472, 1600, + 1024, 1024, 1024, 1024, 1216, 1344, 1472, 1600, 1088, + 1088, 1088, 1088, 1280, 1408, 1536, 1664, 1088, 1088, + 1088, 1088, 1280, 1408, 1536, 1664, 1152, 1152, 1152, + 1152, 1344, 1472, 1600, 1728, 1152, 1152, 1152, 1152, + 1344, 1472, 1600, 1728, 1216, 1216, 1216, 1216, 1408, + 1536, 1664, 1792, 1216, 1216, 1216, 1216, 1408, 1536, + 1664, 1792, 1280, 1280, 1280, 1280, 1472, 1600, 1728, + 1856, 1280, 1280, 1280, 1280, 1472, 1600, 1728, 1856, + 1344, 1344, 1344, 1344, 1536, 1664, 1792, 1920, 1344, + 1344, 1344, 1344, 1536, 1664, 1792, 1920, 1408, 1408, + 1408, 1408, 1600, 1728, 1856, 1984, 1408, 1408, 1408, + 1408, 1600, 1728, 1856, 1984, 1472, 1472, 1472, 1472, + 1664, 1792, 1920, 2048, 1472, 1472, 1472, 1472, 1664, + 1792, 1920, 2048, 1536, 1536, 1536, 1536, 1728, 1856, + 1984, 2112, 1536, 1536, 1536, 1536, 1728, 1856, 1984, + 2112, 1600, 1600, 1600, 1600, 1792, 1920, 2048, 2176, + 1600, 1600, 1600, 1600, 1792, 1920, 2048, 2176, 1664, + 1664, 1664, 1664, 1856, 1984, 2112, 2240, 1664, 1664, + 1664, 1664, 1856, 1984, 2112, 2240, 1728, 1728, 1728, + 1728, 1920, 2048, 2176, 2304, 1728, 1728, 1728, 1728, + 1920, 2048, 2176, 2304, 1792, 1792, 1792, 1792, 1984, + 2112, 2240, 2368, 1792, 1792, 1792, 1792, 1984, 2112, + 2240, 2368, 1856, 1856, 1856, 1856, 2048, 2176, 2304, + 2432, 1856, 1856, 1856, 1856, 2048, 2176, 2304, 2432, + 1920, 1920, 1920, 1920, 2112, 2240, 2368, 2496, 1920, + 1920, 1920, 1920, 2112, 2240, 2368, 2496, 1984, 1984, + 1984, 1984, 2176, 2304, 2432, 2560, 1984, 1984, 1984, + 1984, 2176, 2304, 2432, 2560, 2048, 2048, 2048, 2048, + 2240, 2368, 2496, 2624, 2048, 2048, 2048, 2048, 2240, + 2368, 2496, 2624, 2112, 2112, 2112, 2112, 2304, 2432, + 2560, 2688, 2112, 2112, 2112, 2112, 2304, 2432, 2560, + 2688, 2176, 2176, 2176, 2176, 2368, 2496, 2624, 2752, + 2176, 2176, 2176, 2176, 2368, 2496, 2624, 2752, 2240, + 2240, 2240, 2240, 2432, 2560, 2688, 2816, 2240, 2240, + 2240, 2240, 2432, 2560, 2688, 2816, 2304, 2304, 2304, + 2304, 2496, 2624, 2752, 2880, 2304, 2304, 2304, 2304, + 2496, 2624, 2752, 2880, 2368, 2368, 2368, 2368, 2560, + 2688, 2816, 2944, 2368, 2368, 2368, 2368, 2560, 2688, + 2816, 2944, 2432, 2432, 2432, 2432, 2624, 2752, 2880, + 3008, 2432, 2432, 2432, 2432, 2624, 2752, 2880, 3008, + 2496, 2496, 2496, 2496, 2688, 2816, 2944, 3072, 2496, + 2496, 2496, 2496, 2688, 2816, 2944, 3072, 2560, 2560, + 2560, 2560, 2752, 2880, 3008, 3136, 2560, 2560, 2560, + 2560, 2752, 2880, 3008, 3136, 2624, 2624, 2624, 2624, + 2816, 2944, 3072, 3200, 2624, 2624, 2624, 2624, 2816, + 2944, 3072, 3200, 2688, 2688, 2688, 2688, 2880, 3008, + 3136, 3264, 2688, 2688, 2688, 2688, 2880, 3008, 3136, + 3264, 2752, 2752, 2752, 2752, 2944, 3072, 3200, 3328, + 2752, 2752, 2752, 2752, 2944, 3072, 3200, 3328, 2816, + 2816, 2816, 2816, 3008, 3136, 3264, 3392, 2816, 2816, + 2816, 2816, 3008, 3136, 3264, 3392, 2880, 2880, 2880, + 2880, 3072, 3200, 3328, 3456, 2880, 2880, 2880, 2880, + 3072, 3200, 3328, 3456, 2944, 2944, 2944, 2944, 3136, + 3264, 3392, 3520, 2944, 2944, 2944, 2944, 3136, 3264, + 3392, 3520, 3008, 3008, 3008, 3008, 3200, 3328, 3456, + 3584, 3008, 3008, 3008, 3008, 3200, 3328, 3456, 3584, + 3072, 3072, 3072, 3072, 3264, 3392, 3520, 3648, 3072, + 3072, 3072, 3072, 3264, 3392, 3520, 3648, 3136, 3136, + 3136, 3136, 3328, 3456, 3584, 3712, 3136, 3136, 3136, + 3136, 3328, 3456, 3584, 3712, 3200, 3200, 3200, 3200, + 3392, 3520, 3648, 3776, 3200, 3200, 3200, 3200, 3392, + 3520, 3648, 3776, 3264, 3264, 3264, 3264, 3456, 3584, + 3712, 3840, 3264, 3264, 3264, 3264, 3456, 3584, 3712, + 3840, 3328, 3328, 3328, 3328, 3520, 3648, 3776, 3904, + 3328, 3328, 3328, 3328, 3520, 3648, 3776, 3904, 3392, + 3392, 3392, 3392, 3584, 3712, 3840, 3968, 3392, 3392, + 3392, 3392, 3584, 3712, 3840, 3968, 3456, 3456, 3456, + 3456, 3648, 3776, 3904, 4032, 3456, 3456, 3456, 3456, + 3648, 3776, 3904, 4032, 3520, 3520, 3520, 3520, 3712, + 3840, 3968, 4096, 3520, 3520, 3520, 3520, 3712, 3840, + 3968, 4096, 3584, 3584, 3584, 3584, 3776, 3904, 4032, + 4160, 3584, 3584, 3584, 3584, 3776, 3904, 4032, 4160, + 3648, 3648, 3648, 3648, 3840, 3968, 4096, 4224, 3648, + 3648, 3648, 3648, 3840, 3968, 4096, 4224, 3712, 3712, + 3712, 3712, 3904, 4032, 4160, 4288, 3712, 3712, 3712, + 3712, 3904, 4032, 4160, 4288, 3776, 3776, 3776, 3776, + 3968, 4096, 4224, 4352, 3776, 3776, 3776, 3776, 3968, + 4096, 4224, 4352, 3840, 3840, 3840, 3840, 4032, 4160, + 4288, 4416, 3840, 3840, 3840, 3840, 4032, 4160, 4288, + 4416, 3904, 3904, 3904, 3904, 4096, 4224, 4352, 4480, + 3904, 3904, 3904, 3904, 4096, 4224, 4352, 4480, 3968, + 3968, 3968, 3968, 4160, 4288, 4416, 4544, 3968, 3968, + 3968, 3968, 4160, 4288, 4416, 4544, 4032, 4032, 4032, + 4032, 4224, 4352, 4480, 4608, 4032, 4032, 4032, 4032, + 4224, 4352, 4480, 4608, 4096, 4096, 4096, 4096, 4288, + 4416, 4544, 4672, 4096, 4096, 4096, 4096, 4288, 4416, + 4544, 4672, 4160, 4160, 4160, 4160, 4352, 4480, 4608, + 4736, 4160, 4160, 4160, 4160, 4352, 4480, 4608, 4736, + 4224, 4224, 4224, 4224, 4416, 4544, 4672, 4800, 4224, + 4224, 4224, 4224, 4416, 4544, 4672, 4800, 4288, 4288, + 4288, 4288, 4480, 4608, 4736, 4864, 4288, 4288, 4288, + 4288, 4480, 4608, 4736, 4864, 4352, 4352, 4352, 4352, + 4544, 4672, 4800, 4928, 4352, 4352, 4352, 4352, 4544, + 4672, 4800, 4928, 4416, 4416, 4416, 4416, 4608, 4736, + 4864, 4992, 4416, 4416, 4416, 4416, 4608, 4736, 4864, + 4992, 4480, 4480, 4480, 4480, 4672, 4800, 4928, 5056, + 4480, 4480, 4480, 4480, 4672, 4800, 4928, 5056, 4544, + 4544, 4544, 4544, 4736, 4864, 4992, 5120, 4544, 4544, + 4544, 4544, 4736, 4864, 4992, 5120, 4608, 4608, 4608, + 4608, 4800, 4928, 5056, 5184, 4608, 4608, 4608, 4608, + 4800, 4928, 5056, 5184, 4672, 4672, 4672, 4672, 4864, + 4992, 5120, 5248, 4672, 4672, 4672, 4672, 4864, 4992, + 5120, 5248, 4736, 4736, 4736, 4736, 4928, 5056, 5184, + 5312, 4736, 4736, 4736, 4736, 4928, 5056, 5184, 5312, + 4800, 4800, 4800, 4800, 4992, 5120, 5248, 5376, 4800, + 4800, 4800, 4800, 4992, 5120, 5248, 5376, 4864, 4864, + 4864, 4864, 5056, 5184, 5312, 5440, 4864, 4864, 4864, + 4864, 5056, 5184, 5312, 5440, 4928, 4928, 4928, 4928, + 5120, 5248, 5376, 5504, 4928, 4928, 4928, 4928, 5120, + 5248, 5376, 5504, 4992, 4992, 4992, 4992, 5184, 5312, + 5440, 5568, 4992, 4992, 4992, 4992, 5184, 5312, 5440, + 5568, 5056, 5056, 5056, 5056, 5248, 5376, 5504, 5632, + 5056, 5056, 5056, 5056, 5248, 5376, 5504, 5632, 5120, + 5120, 5120, 5120, 5312, 5440, 5568, 5632, 5120, 5120, + 5120, 5120, 5312, 5440, 5568, 5632, 5184, 5184, 5184, + 5184, 5376, 5504, 5632, 5632, 5184, 5184, 5184, 5184, + 5376, 5504, 5632, 5632, 5248, 5248, 5248, 5248, 5440, + 5568, 5632, 5632, 5248, 5248, 5248, 5248, 5440, 5568, + 5632, 5632, 5312, 5312, 5312, 5312, 5504, 5632, 5632, + 5632, 5312, 5312, 5312, 5312, 5504, 5632, 5632, 5632, + 5376, 5376, 5376, 5376, 5568, 5632, 5632, 5632, 5376, + 5376, 5376, 5376, 5568, 5632, 5632, 5632, 5440, 5440, + 5440, 5440, 5632, 5632, 5632, 5632, 5440, 5440, 5440, + 5440, 5632, 5632, 5632, 5632, 5504, 5504, 5504, 5504, + 5632, 5632, 5632, 5632, 5504, 5504, 5504, 5504, 5632, + 5632, 5632, 5632, 5568, 5568, 5568, 5568, 5632, 5632, + 5632, 5632, 5568, 5568, 5568, 5568, 5632, 5632, 5632, + 5632 +}; + +static int filterData2[1424] = { + 0, 2, 4, 6, 7, 9, 11, 13, 0, -2, -4, -6, -7, -9, -11, + -13, 1, 3, 5, 7, 9, 11, 13, 15, -1, -3, -5, -7, -9, + -11, -13, -15, 1, 3, 5, 7, 10, 12, 14, 16, -1, -3, -5, + -7, -10, -12, -14, -16, 1, 3, 6, 8, 11, 13, 16, 18, + -1, -3, -6, -8, -11, -13, -16, -18, 1, 4, 6, 9, 12, + 15, 17, 20, -1, -4, -6, -9, -12, -15, -17, -20, 1, 4, + 7, 10, 13, 16, 19, 22, -1, -4, -7, -10, -13, -16, -19, + -22, 1, 4, 8, 11, 14, 17, 21, 24, -1, -4, -8, -11, -14, + -17, -21, -24, 1, 5, 8, 12, 15, 19, 22, 26, -1, -5, + -8, -12, -15, -19, -22, -26, 2, 6, 10, 14, 18, 22, 26, + 30, -2, -6, -10, -14, -18, -22, -26, -30, 2, 6, 10, + 14, 19, 23, 27, 31, -2, -6, -10, -14, -19, -23, -27, + -31, 2, 7, 11, 16, 21, 26, 30, 35, -2, -7, -11, -16, + -21, -26, -30, -35, 2, 7, 13, 18, 23, 28, 34, 39, -2, + -7, -13, -18, -23, -28, -34, -39, 2, 8, 14, 20, 25, + 31, 37, 43, -2, -8, -14, -20, -25, -31, -37, -43, 3, + 9, 15, 21, 28, 34, 40, 46, -3, -9, -15, -21, -28, -34, + -40, -46, 3, 10, 17, 24, 31, 38, 45, 52, -3, -10, -17, + -24, -31, -38, -45, -52, 3, 11, 19, 27, 34, 42, 50, + 58, -3, -11, -19, -27, -34, -42, -50, -58, 4, 12, 21, + 29, 38, 46, 55, 63, -4, -12, -21, -29, -38, -46, -55, + -63, 4, 13, 23, 32, 41, 50, 60, 69, -4, -13, -23, -32, + -41, -50, -60, -69, 5, 15, 25, 35, 46, 56, 66, 76, -5, + -15, -25, -35, -46, -56, -66, -76, 5, 16, 28, 39, 50, + 61, 73, 84, -5, -16, -28, -39, -50, -61, -73, -84, 6, + 18, 31, 43, 56, 68, 81, 93, -6, -18, -31, -43, -56, + -68, -81, -93, 6, 20, 34, 48, 61, 75, 89, 103, -6, -20, + -34, -48, -61, -75, -89, -103, 7, 22, 37, 52, 67, 82, + 97, 112, -7, -22, -37, -52, -67, -82, -97, -112, 8, + 24, 41, 57, 74, 90, 107, 123, -8, -24, -41, -57, -74, + -90, -107, -123, 9, 27, 45, 63, 82, 100, 118, 136, -9, + -27, -45, -63, -82, -100, -118, -136, 10, 30, 50, 70, + 90, 110, 130, 150, -10, -30, -50, -70, -90, -110, -130, + -150, 11, 33, 55, 77, 99, 121, 143, 165, -11, -33, -55, + -77, -99, -121, -143, -165, 12, 36, 60, 84, 109, 133, + 157, 181, -12, -36, -60, -84, -109, -133, -157, -181, + 13, 40, 66, 93, 120, 147, 173, 200, -13, -40, -66, -93, + -120, -147, -173, -200, 14, 44, 73, 103, 132, 162, 191, + 221, -14, -44, -73, -103, -132, -162, -191, -221, 16, + 48, 81, 113, 146, 178, 211, 243, -16, -48, -81, -113, + -146, -178, -211, -243, 17, 53, 89, 125, 160, 196, 232, + 268, -17, -53, -89, -125, -160, -196, -232, -268, 19, + 58, 98, 137, 176, 215, 255, 294, -19, -58, -98, -137, + -176, -215, -255, -294, 21, 64, 108, 151, 194, 237, + 281, 324, -21, -64, -108, -151, -194, -237, -281, -324, + 23, 71, 118, 166, 213, 261, 308, 356, -23, -71, -118, + -166, -213, -261, -308, -356, 26, 78, 130, 182, 235, + 287, 339, 391, -26, -78, -130, -182, -235, -287, -339, + -391, 28, 86, 143, 201, 258, 316, 373, 431, -28, -86, + -143, -201, -258, -316, -373, -431, 31, 94, 158, 221, + 284, 347, 411, 474, -31, -94, -158, -221, -284, -347, + -411, -474, 34, 104, 174, 244, 313, 383, 453, 523, -34, + -104, -174, -244, -313, -383, -453, -523, 38, 115, 191, + 268, 345, 422, 498, 575, -38, -115, -191, -268, -345, + -422, -498, -575, 42, 126, 210, 294, 379, 463, 547, + 631, -42, -126, -210, -294, -379, -463, -547, -631, + 46, 139, 231, 324, 417, 510, 602, 695, -46, -139, -231, + -324, -417, -510, -602, -695, 51, 153, 255, 357, 459, + 561, 663, 765, -51, -153, -255, -357, -459, -561, -663, + -765, 56, 168, 280, 392, 505, 617, 729, 841, -56, -168, + -280, -392, -505, -617, -729, -841, 61, 185, 308, 432, + 555, 679, 802, 926, -61, -185, -308, -432, -555, -679, + -802, -926, 68, 204, 340, 476, 612, 748, 884, 1020, + -68, -204, -340, -476, -612, -748, -884, -1020, 74, + 224, 373, 523, 672, 822, 971, 1121, -74, -224, -373, + -523, -672, -822, -971, -1121, 82, 246, 411, 575, 740, + 904, 1069, 1233, -82, -246, -411, -575, -740, -904, + -1069, -1233, 90, 271, 452, 633, 814, 995, 1176, 1357, + -90, -271, -452, -633, -814, -995, -1176, -1357, 99, + 298, 497, 696, 895, 1094, 1293, 1492, -99, -298, -497, + -696, -895, -1094, -1293, -1492, 109, 328, 547, 766, + 985, 1204, 1423, 1642, -109, -328, -547, -766, -985, + -1204, -1423, -1642, 120, 361, 601, 842, 1083, 1324, + 1564, 1805, -120, -361, -601, -842, -1083, -1324, -1564, + -1805, 132, 397, 662, 927, 1192, 1457, 1722, 1987, -132, + -397, -662, -927, -1192, -1457, -1722, -1987, 145, 437, + 728, 1020, 1311, 1603, 1894, 2186, -145, -437, -728, + -1020, -1311, -1603, -1894, -2186, 160, 480, 801, 1121, + 1442, 1762, 2083, 2403, -160, -480, -801, -1121, -1442, + -1762, -2083, -2403, 176, 529, 881, 1234, 1587, 1940, + 2292, 2645, -176, -529, -881, -1234, -1587, -1940, -2292, + -2645, 194, 582, 970, 1358, 1746, 2134, 2522, 2910, + -194, -582, -970, -1358, -1746, -2134, -2522, -2910, + 213, 640, 1066, 1493, 1920, 2347, 2773, 3200, -213, + -640, -1066, -1493, -1920, -2347, -2773, -3200, 234, + 704, 1173, 1643, 2112, 2582, 3051, 3521, -234, -704, + -1173, -1643, -2112, -2582, -3051, -3521, 258, 774, + 1291, 1807, 2324, 2840, 3357, 3873, -258, -774, -1291, + -1807, -2324, -2840, -3357, -3873, 284, 852, 1420, 1988, + 2556, 3124, 3692, 4260, -284, -852, -1420, -1988, -2556, + -3124, -3692, -4260, 312, 937, 1561, 2186, 2811, 3436, + 4060, 4685, -312, -937, -1561, -2186, -2811, -3436, + -4060, -4685, 343, 1030, 1718, 2405, 3092, 3779, 4467, + 5154, -343, -1030, -1718, -2405, -3092, -3779, -4467, + -5154, 378, 1134, 1890, 2646, 3402, 4158, 4914, 5670, + -378, -1134, -1890, -2646, -3402, -4158, -4914, -5670, + 415, 1247, 2079, 2911, 3742, 4574, 5406, 6238, -415, + -1247, -2079, -2911, -3742, -4574, -5406, -6238, 457, + 1372, 2287, 3202, 4117, 5032, 5947, 6862, -457, -1372, + -2287, -3202, -4117, -5032, -5947, -6862, 503, 1509, + 2516, 3522, 4529, 5535, 6542, 7548, -503, -1509, -2516, + -3522, -4529, -5535, -6542, -7548, 553, 1660, 2767, + 3874, 4981, 6088, 7195, 8302, -553, -1660, -2767, -3874, + -4981, -6088, -7195, -8302, 608, 1826, 3044, 4262, 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-9233, -15389, -21545, -27700, + -32767, -32767, -32767, 3385, 10157, 16928, 23700, 30471, + 32767, 32767, 32767, -3385, -10157, -16928, -23700, + -30471, -32767, -32767, -32767, 3724, 11172, 18621, + 26069, 32767, 32767, 32767, 32767, -3724, -11172, -18621, + -26069, -32767, -32767, -32767, -32767, 4095, 12287, + 20479, 28671, 32767, 32767, 32767, 32767, -4095, -12287, + -20479, -28671, -32767, -32767, -32767, -32767 +}; + +static const int p1s[17] = { 0, 4, 3, 4, 2, 4, 3, 4, 1, 4, 3, 4, 2, 4, 3, 4, 0}; +static const int p2s[17] = { 0, 1, 1, 3, 1, 5, 3, 7, 1, 9, 5, 11, 3, 13, 7, 15, 1}; + +static void soundFilter(byte *data, int16 *buffer, int p1, int p2); + +void SoundManager::applyFilter(SoundEntry *entry, int16 *buffer) { + if ((((byte *)entry->soundData)[1] << 6) > 0x1600) { + entry->status.status |= 0x20000000; + } else { + int variant = entry->status.status & 0x1f; + + soundFilter((byte *)entry->soundData, buffer, p1s[variant], p2s[variant]); + } +} + + +static void soundFilter(byte *data, int16 *buffer, int p1, int p2) { + int data1, data2, data1p, data2p; + byte idx; + + data2 = data[0]; + data1 = data[1] << 6; + + data += 2; + + for (int count = 0; count < 735; count++) { + idx = data[count] >> 4; + data1p = filterData[idx + data1]; + data2p = CLIP(filterData2[idx + data1] + data2, -32767, 32767); + + buffer[2 * count] = (p2 * data2p) >> p1; + + idx = data[count] & 0xF; + + data1 = filterData[idx + data1p]; + data2 = CLIP(filterData2[idx + data1p] + data2p, -32767, 32767); + buffer[2 * count + 1] = (p2 * data2) >> p1; + } +} + + } // End of namespace LastExpress |