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annotate src/audio/SDL_mixer.c @ 4423:7953336267c2

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Disable error checks for reset actuators and set autocenter. Reset actuators and set autocenter might not actually be supported on all implementations. We'll just disable error checking since they aren't critical to neither opening the joystick nor the haptic subsystem.
author Edgar Simo <bobbens@gmail.com>
date Sun, 28 Feb 2010 09:23:23 +0000
parents f7b03b6838cb
children b530ef003506
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
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16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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e8157fcb3114 Updated the source with the correct e-mail address
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20 slouken@libsdl.org
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21 */
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d910939febfa Use consistent identifiers for the various platforms we support.
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22 #include "SDL_config.h"
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23
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24 /* This provides the default mixing callback for the SDL audio routines */
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25
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c71e05b4dc2e More header massaging... works great on Windows. ;-)
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26 #include "SDL_cpuinfo.h"
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27 #include "SDL_timer.h"
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28 #include "SDL_audio.h"
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29 #include "SDL_sysaudio.h"
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a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!)
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30 #include "SDL_mixer_MMX.h"
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64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
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31 #include "SDL_mixer_MMX_VC.h"
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873c2598f969 Add m68k assembly mixing routines
Patrice Mandin <patmandin@gmail.com>
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32 #include "SDL_mixer_m68k.h"
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33
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34 /* This table is used to add two sound values together and pin
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35 * the value to avoid overflow. (used with permission from ARDI)
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36 * Changed to use 0xFE instead of 0xFF for better sound quality.
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37 */
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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38 static const Uint8 mix8[] = {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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39 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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40 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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41 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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42 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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43 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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44 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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45 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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46 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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47 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
48 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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49 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
50 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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51 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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52 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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53 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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54 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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55 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
56 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
57 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
58 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
59 0x5C, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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60 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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61 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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62 0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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63 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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64 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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65 0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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66 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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67 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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68 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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69 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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70 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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71 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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72 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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73 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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74 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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75 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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76 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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77 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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78 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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79 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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80 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1442
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81 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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82 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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83 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
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84 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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85 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE
0
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86 };
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87
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88 /* The volume ranges from 0 - 128 */
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89 #define ADJUST_VOLUME(s, v) (s = (s*v)/SDL_MIX_MAXVOLUME)
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90 #define ADJUST_VOLUME_U8(s, v) (s = (((s-128)*v)/SDL_MIX_MAXVOLUME)+128)
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91
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
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92
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
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93 void
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94 SDL_MixAudioFormat(Uint8 * dst, const Uint8 * src, SDL_AudioFormat format,
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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95 Uint32 len, int volume)
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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96 {
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97 if (volume == 0) {
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98 return;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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99 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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100
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101 switch (format) {
0
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102
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103 case AUDIO_U8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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104 {
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105 #if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
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106 SDL_MixAudio_m68k_U8((char *) dst, (char *) src,
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107 (unsigned long) len, (long) volume,
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diff changeset
108 (char *) mix8);
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diff changeset
109 #else
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diff changeset
110 Uint8 src_sample;
0
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diff changeset
111
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
112 while (len--) {
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diff changeset
113 src_sample = *src;
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114 ADJUST_VOLUME_U8(src_sample, volume);
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115 *dst = mix8[*dst + src_sample];
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116 ++dst;
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diff changeset
117 ++src;
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diff changeset
118 }
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119 #endif
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120 }
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diff changeset
121 break;
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122
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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123 case AUDIO_S8:
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124 {
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125 #if defined(SDL_BUGGY_MMX_MIXERS) /* buggy, so we're disabling them. --ryan. */
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126 #if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
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127 if (SDL_HasMMX()) {
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128 SDL_MixAudio_MMX_S8((char *) dst, (char *) src,
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129 (unsigned int) len, (int) volume);
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130 } else
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131 #elif ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
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132 if (SDL_HasMMX()) {
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133 SDL_MixAudio_MMX_S8_VC((char *) dst, (char *) src,
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134 (unsigned int) len, (int) volume);
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135 } else
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136 #endif
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137 #endif
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138 #if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
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139 SDL_MixAudio_m68k_S8((char *) dst, (char *) src,
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140 (unsigned long) len, (long) volume);
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141 #else
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142 {
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143 Sint8 *dst8, *src8;
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144 Sint8 src_sample;
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145 int dst_sample;
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diff changeset
146 const int max_audioval = ((1 << (8 - 1)) - 1);
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147 const int min_audioval = -(1 << (8 - 1));
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148
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149 src8 = (Sint8 *) src;
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150 dst8 = (Sint8 *) dst;
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diff changeset
151 while (len--) {
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diff changeset
152 src_sample = *src8;
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diff changeset
153 ADJUST_VOLUME(src_sample, volume);
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154 dst_sample = *dst8 + src_sample;
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155 if (dst_sample > max_audioval) {
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156 *dst8 = max_audioval;
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157 } else if (dst_sample < min_audioval) {
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158 *dst8 = min_audioval;
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diff changeset
159 } else {
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diff changeset
160 *dst8 = dst_sample;
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diff changeset
161 }
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diff changeset
162 ++dst8;
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diff changeset
163 ++src8;
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diff changeset
164 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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165 }
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166 #endif
1895
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167 }
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168 break;
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169
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170 case AUDIO_S16LSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
171 {
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diff changeset
172 #if defined(SDL_BUGGY_MMX_MIXERS) /* buggy, so we're disabling them. --ryan. */
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173 #if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
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174 if (SDL_HasMMX()) {
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175 SDL_MixAudio_MMX_S16((char *) dst, (char *) src,
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176 (unsigned int) len, (int) volume);
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diff changeset
177 } else
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178 #elif ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
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179 if (SDL_HasMMX()) {
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180 SDL_MixAudio_MMX_S16_VC((char *) dst, (char *) src,
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181 (unsigned int) len, (int) volume);
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diff changeset
182 } else
539
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diff changeset
183 #endif
3628
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diff changeset
184 #endif
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185 #if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
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186 SDL_MixAudio_m68k_S16LSB((short *) dst, (short *) src,
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187 (unsigned long) len, (long) volume);
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188 #else
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diff changeset
189 {
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diff changeset
190 Sint16 src1, src2;
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diff changeset
191 int dst_sample;
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diff changeset
192 const int max_audioval = ((1 << (16 - 1)) - 1);
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diff changeset
193 const int min_audioval = -(1 << (16 - 1));
0
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diff changeset
194
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195 len /= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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196 while (len--) {
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diff changeset
197 src1 = ((src[1]) << 8 | src[0]);
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198 ADJUST_VOLUME(src1, volume);
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199 src2 = ((dst[1]) << 8 | dst[0]);
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diff changeset
200 src += 2;
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diff changeset
201 dst_sample = src1 + src2;
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diff changeset
202 if (dst_sample > max_audioval) {
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203 dst_sample = max_audioval;
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204 } else if (dst_sample < min_audioval) {
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205 dst_sample = min_audioval;
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diff changeset
206 }
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diff changeset
207 dst[0] = dst_sample & 0xFF;
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diff changeset
208 dst_sample >>= 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
209 dst[1] = dst_sample & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
210 dst += 2;
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diff changeset
211 }
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diff changeset
212 }
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213 #endif
1895
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diff changeset
214 }
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diff changeset
215 break;
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diff changeset
216
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diff changeset
217 case AUDIO_S16MSB:
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diff changeset
218 {
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diff changeset
219 #if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
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diff changeset
220 SDL_MixAudio_m68k_S16MSB((short *) dst, (short *) src,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
221 (unsigned long) len, (long) volume);
633
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diff changeset
222 #else
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
223 Sint16 src1, src2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
224 int dst_sample;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
225 const int max_audioval = ((1 << (16 - 1)) - 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
226 const int min_audioval = -(1 << (16 - 1));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
227
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
228 len /= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
229 while (len--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
230 src1 = ((src[0]) << 8 | src[1]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
231 ADJUST_VOLUME(src1, volume);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
232 src2 = ((dst[0]) << 8 | dst[1]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
233 src += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
234 dst_sample = src1 + src2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
235 if (dst_sample > max_audioval) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
236 dst_sample = max_audioval;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
237 } else if (dst_sample < min_audioval) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
238 dst_sample = min_audioval;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
239 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
240 dst[1] = dst_sample & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
241 dst_sample >>= 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
242 dst[0] = dst_sample & 0xFF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
243 dst += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
244 }
633
873c2598f969 Add m68k assembly mixing routines
Patrice Mandin <patmandin@gmail.com>
parents: 574
diff changeset
245 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
246 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
247 break;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
249 case AUDIO_S32LSB:
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
250 {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
251 const Uint32 *src32 = (Uint32 *) src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
252 Uint32 *dst32 = (Uint32 *) dst;
2013
0615fa58c0be Fixed S32 audio mixing, but I'm a bit nervous about the use of 64-bit
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
253 Sint64 src1, src2;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
254 Sint64 dst_sample;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
diff changeset
255 const Sint64 max_audioval = ((((Sint64) 1) << (32 - 1)) - 1);
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
diff changeset
256 const Sint64 min_audioval = -(((Sint64) 1) << (32 - 1));
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
257
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
258 len /= 4;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
259 while (len--) {
2013
0615fa58c0be Fixed S32 audio mixing, but I'm a bit nervous about the use of 64-bit
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
260 src1 = (Sint64) ((Sint32) SDL_SwapLE32(*src32));
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
261 src32++;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
262 ADJUST_VOLUME(src1, volume);
2013
0615fa58c0be Fixed S32 audio mixing, but I'm a bit nervous about the use of 64-bit
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
263 src2 = (Sint64) ((Sint32) SDL_SwapLE32(*dst32));
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
264 dst_sample = src1 + src2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
265 if (dst_sample > max_audioval) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
266 dst_sample = max_audioval;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
267 } else if (dst_sample < min_audioval) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
268 dst_sample = min_audioval;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
269 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
270 *(dst32++) = SDL_SwapLE32((Uint32) ((Sint32) dst_sample));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
271 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
272 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
273 break;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
274
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
275 case AUDIO_S32MSB:
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
276 {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
277 const Uint32 *src32 = (Uint32 *) src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
278 Uint32 *dst32 = (Uint32 *) dst;
2013
0615fa58c0be Fixed S32 audio mixing, but I'm a bit nervous about the use of 64-bit
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
279 Sint64 src1, src2;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
280 Sint64 dst_sample;
1985
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
diff changeset
281 const Sint64 max_audioval = ((((Sint64) 1) << (32 - 1)) - 1);
8055185ae4ed Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents: 1982
diff changeset
282 const Sint64 min_audioval = -(((Sint64) 1) << (32 - 1));
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
283
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
284 len /= 4;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
285 while (len--) {
2013
0615fa58c0be Fixed S32 audio mixing, but I'm a bit nervous about the use of 64-bit
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
286 src1 = (Sint64) ((Sint32) SDL_SwapBE32(*src32));
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
287 src32++;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
288 ADJUST_VOLUME(src1, volume);
2013
0615fa58c0be Fixed S32 audio mixing, but I'm a bit nervous about the use of 64-bit
Ryan C. Gordon <icculus@icculus.org>
parents: 1985
diff changeset
289 src2 = (Sint64) ((Sint32) SDL_SwapBE32(*dst32));
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
290 dst_sample = src1 + src2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
291 if (dst_sample > max_audioval) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
292 dst_sample = max_audioval;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
293 } else if (dst_sample < min_audioval) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
294 dst_sample = min_audioval;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
295 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
296 *(dst32++) = SDL_SwapBE32((Uint32) ((Sint32) dst_sample));
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
297 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
298 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
299 break;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
300
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
301 case AUDIO_F32LSB:
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
302 {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
303 const float fmaxvolume = 1.0f / ((float) SDL_MIX_MAXVOLUME);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
304 const float fvolume = (float) volume;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
305 const float *src32 = (float *) src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
306 float *dst32 = (float *) dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
307 float src1, src2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
308 double dst_sample;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
309 /* !!! FIXME: are these right? */
2130
3ee59c43d784 Fixes for compiling with Visual C++ 8.0 Express Edition
Sam Lantinga <slouken@libsdl.org>
parents: 2049
diff changeset
310 const double max_audioval = 3.402823466e+38F;
3ee59c43d784 Fixes for compiling with Visual C++ 8.0 Express Edition
Sam Lantinga <slouken@libsdl.org>
parents: 2049
diff changeset
311 const double min_audioval = -3.402823466e+38F;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
312
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
313 len /= 4;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
314 while (len--) {
2014
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
315 src1 = ((SDL_SwapFloatLE(*src32) * fvolume) * fmaxvolume);
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
316 src2 = SDL_SwapFloatLE(*dst32);
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
317 src32++;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
318
2014
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
319 dst_sample = ((double) src1) + ((double) src2);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
320 if (dst_sample > max_audioval) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
321 dst_sample = max_audioval;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
322 } else if (dst_sample < min_audioval) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
323 dst_sample = min_audioval;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
324 }
2014
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
325 *(dst32++) = SDL_SwapFloatLE((float) dst_sample);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
326 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
327 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
328 break;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
329
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
330 case AUDIO_F32MSB:
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
331 {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
332 const float fmaxvolume = 1.0f / ((float) SDL_MIX_MAXVOLUME);
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
333 const float fvolume = (float) volume;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
334 const float *src32 = (float *) src;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
335 float *dst32 = (float *) dst;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
336 float src1, src2;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
337 double dst_sample;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
338 /* !!! FIXME: are these right? */
2130
3ee59c43d784 Fixes for compiling with Visual C++ 8.0 Express Edition
Sam Lantinga <slouken@libsdl.org>
parents: 2049
diff changeset
339 const double max_audioval = 3.402823466e+38F;
3ee59c43d784 Fixes for compiling with Visual C++ 8.0 Express Edition
Sam Lantinga <slouken@libsdl.org>
parents: 2049
diff changeset
340 const double min_audioval = -3.402823466e+38F;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
341
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
342 len /= 4;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
343 while (len--) {
2014
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
344 src1 = ((SDL_SwapFloatBE(*src32) * fvolume) * fmaxvolume);
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
345 src2 = SDL_SwapFloatBE(*dst32);
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
346 src32++;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
347
2014
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
348 dst_sample = ((double) src1) + ((double) src2);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
349 if (dst_sample > max_audioval) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
350 dst_sample = max_audioval;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
351 } else if (dst_sample < min_audioval) {
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
352 dst_sample = min_audioval;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
353 }
2014
7abe37467fa5 Replaced unions with calls to SDL_SwapFloat...
Ryan C. Gordon <icculus@icculus.org>
parents: 2013
diff changeset
354 *(dst32++) = SDL_SwapFloatBE((float) dst_sample);
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
355 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
356 }
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
357 break;
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
358
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
359 default: /* If this happens... FIXME! */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
360 SDL_SetError("SDL_MixAudio(): unknown audio format");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
361 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
362 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
363 }
574
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents: 539
diff changeset
364
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
365 /* vi: set ts=4 sw=4 expandtab: */