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| author | Andree Buschmann <AndreeBuschmann@t-online.de> | 2011-09-10 10:45:44 +0000 |
|---|---|---|
| committer | Andree Buschmann <AndreeBuschmann@t-online.de> | 2011-09-10 10:45:44 +0000 |
| commit | 4096cb1830f4957da74e413d2488105e551fb507 (patch) | |
| tree | f2720d043831e12f5676c690a49839efca471679 /apps/codecs/libgme/emutables.h | |
| parent | e8dc7a6d0702c6724c4b3b9a4cf8efb7c6f712c9 (diff) | |
| download | rockbox-4096cb1830f4957da74e413d2488105e551fb507.tar.gz rockbox-4096cb1830f4957da74e413d2488105e551fb507.zip | |
Further work on libgme's emu2413. Fully remove floating point, introduce another precalculated table, directly use predefined tables instead of copying them. Reduces memory and codesize by several KB.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30494 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/libgme/emutables.h')
| -rw-r--r-- | apps/codecs/libgme/emutables.h | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/apps/codecs/libgme/emutables.h b/apps/codecs/libgme/emutables.h index 173ecd22c6..e34f100bc4 100644 --- a/apps/codecs/libgme/emutables.h +++ b/apps/codecs/libgme/emutables.h | |||
| @@ -28,7 +28,7 @@ static const e_uint16 sin_coeff[] = { | |||
| 28 | 0, 0, | 28 | 0, 0, |
| 29 | }; | 29 | }; |
| 30 | 30 | ||
| 31 | static const e_int32 pm_coeff[] = { | 31 | static const e_int16 pm_coeff[] = { |
| 32 | 256, 256, 256, 256, 256, 256, 256, | 32 | 256, 256, 256, 256, 256, 256, 256, |
| 33 | 256, 256, 256, 256, 256, 256, 256, | 33 | 256, 256, 256, 256, 256, 256, 256, |
| 34 | 256, 256, 256, 256, 256, 256, 256, | 34 | 256, 256, 256, 256, 256, 256, 256, |
| @@ -68,6 +68,46 @@ static const e_int32 pm_coeff[] = { | |||
| 68 | 255, 255, 255, 255, | 68 | 255, 255, 255, 255, |
| 69 | }; | 69 | }; |
| 70 | 70 | ||
| 71 | static const e_int8 am_coeff[] = { | ||
| 72 | 13, 13, 13, 13, 13, 14, 14, | ||
| 73 | 14, 14, 14, 15, 15, 15, 15, | ||
| 74 | 15, 16, 16, 16, 16, 16, 17, | ||
| 75 | 17, 17, 17, 17, 18, 18, 18, | ||
| 76 | 18, 18, 19, 19, 19, 19, 19, | ||
| 77 | 20, 20, 20, 20, 20, 21, 21, | ||
| 78 | 21, 21, 21, 22, 22, 22, 22, | ||
| 79 | 22, 23, 23, 23, 23, 23, 24, | ||
| 80 | 24, 24, 24, 24, 25, 25, 25, | ||
| 81 | 25, 26, 25, 25, 25, 25, 24, | ||
| 82 | 24, 24, 24, 24, 23, 23, 23, | ||
| 83 | 23, 23, 22, 22, 22, 22, 22, | ||
| 84 | 21, 21, 21, 21, 21, 20, 20, | ||
| 85 | 20, 20, 20, 19, 19, 19, 19, | ||
| 86 | 19, 18, 18, 18, 18, 18, 17, | ||
| 87 | 17, 17, 17, 17, 16, 16, 16, | ||
| 88 | 16, 16, 15, 15, 15, 15, 15, | ||
| 89 | 14, 14, 14, 14, 14, 13, 13, | ||
| 90 | 13, 13, 13, 12, 12, 12, 12, | ||
| 91 | 11, 11, 11, 11, 11, 10, 10, | ||
| 92 | 10, 10, 10, 9, 9, 9, 9, | ||
| 93 | 9, 8, 8, 8, 8, 8, 7, | ||
| 94 | 7, 7, 7, 7, 6, 6, 6, | ||
| 95 | 6, 6, 5, 5, 5, 5, 5, | ||
| 96 | 4, 4, 4, 4, 4, 3, 3, | ||
| 97 | 3, 3, 3, 2, 2, 2, 2, | ||
| 98 | 2, 1, 1, 1, 1, 1, 0, | ||
| 99 | 0, 0, 0, 0, 0, 0, 0, | ||
| 100 | 0, 1, 1, 1, 1, 1, 2, | ||
| 101 | 2, 2, 2, 2, 3, 3, 3, | ||
| 102 | 3, 3, 4, 4, 4, 4, 4, | ||
| 103 | 5, 5, 5, 5, 5, 6, 6, | ||
| 104 | 6, 6, 6, 7, 7, 7, 7, | ||
| 105 | 7, 8, 8, 8, 8, 8, 9, | ||
| 106 | 9, 9, 9, 9, 10, 10, 10, | ||
| 107 | 10, 10, 11, 11, 11, 11, 11, | ||
| 108 | 12, 12, 12, 12, | ||
| 109 | }; | ||
| 110 | |||
| 71 | static const e_int16 db2lin_coeff[] = { | 111 | static const e_int16 db2lin_coeff[] = { |
| 72 | 255, 249, 244, 239, 233, 228, 224, | 112 | 255, 249, 244, 239, 233, 228, 224, |
| 73 | 219, 214, 209, 205, 201, 196, 192, | 113 | 219, 214, 209, 205, 201, 196, 192, |