Mercurial > sdl-ios-xcode
annotate src/audio/dc/aica.c @ 4324:1496aa09e41e SDL-1.2
Steven Noonan to sdl
While trying to build the SDLMain.m included with SDL 1.2.14, with
#define SDL_USE_NIB_FILE 1:
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:
In function '-[SDLMain fixMenu:withAppName:]':
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:122:
warning: 'sizeToFit' is deprecated (declared at
/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSMenu.h:281)
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:
In function 'main':
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:376:
warning: 'poseAsClass:' is deprecated (declared at
/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:127)
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:376:
error: 'poseAsClass:' is unavailable (declared at
/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:127)
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:377:
warning: passing argument 2 of 'NSApplicationMain' from incompatible
pointer type
Eric Wing to Sam
I don't have time today to look at this in detail, but the problem is definitely the poseAsClass: method.
This was deprecated in Obj-C 2.0 and not retained in 64-bit.
I've never used this method and it has always been limited to esoteric uses. I think this is why Apple wanted to dump it (among complicating some other things they do). I have read about others getting bit by this when migrating. Long story short, there really isn't a migration path for this method. The question that then must be asked is why are we using it (what does it accomplish), and then figure out the 'proper' way of accomplishing that.
Glancing at SDLMain.m, it's not obvious to me why it is there or what it is really accomplishing. My only speculation is that NSApplicationMain hardcodes something to look for NSApplication and a subclass (SDLApplication) fails for some reason (assuming that the original coder did this for good reason).
Three thoughts come to mind.
1) The Info.plist has properties to control things related to the startup class and nib.
NSPrincipalClass, NSMainNibFile
Maybe principle class needs to be SDLApplication and we can delete the poseAs
2) I was told that 10.6 introduced new APIs to make programatic NIB wrangling and avoidance easier. Unfortunately, I don't know the specifics.
3) Instead of subclassing NSApplication in SDLMain.m, maybe we can just add a category. It looks like the following is the only thing that is done (quick glance):
@interface SDLApplication : NSApplication
@end
@implementation SDLApplication
/* Invoked from the Quit menu item */
- (void)terminate:(id)sender
{
/* Post a SDL_QUIT event */
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
}
@end
So instead, we change this to: (warning written in mail and untested)
@interface NSApplication (SDLApplication)
- (void) terminate:(id)sender;
@end
@implementation NSApplication (SDLApplication)
/* Invoked from the Quit menu item */
- (void)terminate:(id)sender
{
/* Post a SDL_QUIT event */
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
}
@end
Then everywhere SDLApplication is used, we change it to NSApplication (and remove the poseAsClass line).
Perhaps you could ask the bug reporter to try this solution (#3).
And if that fails, maybe try #1.
-Eric
Steven Noonan to Sam
The suggested change (diff below) seems to work fine.
- Steven
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 12 Oct 2009 21:07:12 +0000 |
parents | 11134dc42da8 |
children | 782fd950bd46 c121d94672cb |
rev | line source |
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509
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1 /* This file is part of the Dreamcast function library. |
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2 * Please see libdream.c for further details. |
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3 * |
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4 * (c)2000 Dan Potter |
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5 * modify BERO |
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6 */ |
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7 #include "aica.h" |
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8 |
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9 #include <arch/irq.h> |
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10 #include <dc/spu.h> |
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11 |
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12 /* #define dc_snd_base ((volatile unsigned char *)0x00800000) */ /* arm side */ |
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13 #define dc_snd_base ((volatile unsigned char *)0xa0700000) /* dc side */ |
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14 |
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15 /* Some convienence macros */ |
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16 #define SNDREGADDR(x) (0xa0700000 + (x)) |
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17 #define CHNREGADDR(ch,x) SNDREGADDR(0x80*(ch)+(x)) |
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18 |
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19 |
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20 #define SNDREG32(x) (*(volatile unsigned long *)SNDREGADDR(x)) |
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21 #define SNDREG8(x) (*(volatile unsigned char *)SNDREGADDR(x)) |
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22 #define CHNREG32(ch, x) (*(volatile unsigned long *)CHNREGADDR(ch,x)) |
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23 #define CHNREG8(ch, x) (*(volatile unsigned long *)CHNREGADDR(ch,x)) |
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24 |
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25 #define G2_LOCK(OLD) \ |
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26 do { \ |
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27 if (!irq_inside_int()) \ |
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28 OLD = irq_disable(); \ |
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29 /* suspend any G2 DMA here... */ \ |
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30 while((*(volatile unsigned int *)0xa05f688c) & 0x20) \ |
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31 ; \ |
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32 } while(0) |
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33 |
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34 #define G2_UNLOCK(OLD) \ |
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35 do { \ |
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36 /* resume any G2 DMA here... */ \ |
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37 if (!irq_inside_int()) \ |
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38 irq_restore(OLD); \ |
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39 } while(0) |
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40 |
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41 |
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42 void aica_init() { |
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43 int i, j, old = 0; |
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44 |
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45 /* Initialize AICA channels */ |
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46 G2_LOCK(old); |
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47 SNDREG32(0x2800) = 0x0000; |
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48 |
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49 for (i=0; i<64; i++) { |
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50 for (j=0; j<0x80; j+=4) { |
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51 if ((j&31)==0) g2_fifo_wait(); |
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52 CHNREG32(i, j) = 0; |
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53 } |
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54 g2_fifo_wait(); |
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55 CHNREG32(i,0) = 0x8000; |
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56 CHNREG32(i,20) = 0x1f; |
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57 } |
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58 |
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59 SNDREG32(0x2800) = 0x000f; |
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60 g2_fifo_wait(); |
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61 G2_UNLOCK(old); |
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62 } |
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63 |
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64 /* Translates a volume from linear form to logarithmic form (required by |
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65 the AICA chip */ |
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66 /* int logs[] = { |
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67 |
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68 0, 40, 50, 58, 63, 68, 73, 77, 80, 83, 86, 89, 92, 94, 97, 99, 101, 103, |
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69 105, 107, 109, 111, 112, 114, 116, 117, 119, 120, 122, 123, 125, 126, 127, |
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70 129, 130, 131, 133, 134, 135, 136, 137, 139, 140, 141, 142, 143, 144, 145, |
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71 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 156, 157, 158, 159, |
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72 160, 161, 162, 162, 163, 164, 165, 166, 166, 167, 168, 169, 170, 170, 171, |
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73 172, 172, 173, 174, 175, 175, 176, 177, 177, 178, 179, 180, 180, 181, 182, |
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74 182, 183, 183, 184, 185, 185, 186, 187, 187, 188, 188, 189, 190, 190, 191, |
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75 191, 192, 193, 193, 194, 194, 195, 196, 196, 197, 197, 198, 198, 199, 199, |
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76 200, 201, 201, 202, 202, 203, 203, 204, 204, 205, 205, 206, 206, 207, 207, |
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77 208, 208, 209, 209, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215, |
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78 215, 216, 216, 217, 217, 217, 218, 218, 219, 219, 220, 220, 221, 221, 222, |
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79 222, 222, 223, 223, 224, 224, 225, 225, 225, 226, 226, 227, 227, 228, 228, |
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80 228, 229, 229, 230, 230, 230, 231, 231, 232, 232, 232, 233, 233, 234, 234, |
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81 234, 235, 235, 236, 236, 236, 237, 237, 238, 238, 238, 239, 239, 240, 240, |
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82 240, 241, 241, 241, 242, 242, 243, 243, 243, 244, 244, 244, 245, 245, 245, |
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83 246, 246, 247, 247, 247, 248, 248, 248, 249, 249, 249, 250, 250, 250, 251, |
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84 251, 251, 252, 252, 252, 253, 253, 253, 254, 254, 254, 255 |
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85 |
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86 }; */ |
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87 |
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88 const static unsigned char logs[] = { |
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89 0, 15, 22, 27, 31, 35, 39, 42, 45, 47, 50, 52, 55, 57, 59, 61, |
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90 63, 65, 67, 69, 71, 73, 74, 76, 78, 79, 81, 82, 84, 85, 87, 88, |
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91 90, 91, 92, 94, 95, 96, 98, 99, 100, 102, 103, 104, 105, 106, |
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92 108, 109, 110, 111, 112, 113, 114, 116, 117, 118, 119, 120, 121, |
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93 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, |
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94 135, 136, 137, 138, 138, 139, 140, 141, 142, 143, 144, 145, 146, |
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95 146, 147, 148, 149, 150, 151, 152, 152, 153, 154, 155, 156, 156, |
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96 157, 158, 159, 160, 160, 161, 162, 163, 164, 164, 165, 166, 167, |
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97 167, 168, 169, 170, 170, 171, 172, 173, 173, 174, 175, 176, 176, |
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98 177, 178, 178, 179, 180, 181, 181, 182, 183, 183, 184, 185, 185, |
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99 186, 187, 187, 188, 189, 189, 190, 191, 191, 192, 193, 193, 194, |
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100 195, 195, 196, 197, 197, 198, 199, 199, 200, 200, 201, 202, 202, |
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101 203, 204, 204, 205, 205, 206, 207, 207, 208, 209, 209, 210, 210, |
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102 211, 212, 212, 213, 213, 214, 215, 215, 216, 216, 217, 217, 218, |
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103 219, 219, 220, 220, 221, 221, 222, 223, 223, 224, 224, 225, 225, |
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104 226, 227, 227, 228, 228, 229, 229, 230, 230, 231, 232, 232, 233, |
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105 233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 239, 239, 240, |
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106 240, 241, 241, 242, 242, 243, 243, 244, 244, 245, 245, 246, 246, |
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107 247, 247, 248, 248, 249, 249, 250, 250, 251, 251, 252, 252, 253, 254, 255 |
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108 }; |
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109 |
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110 /* For the moment this is going to have to suffice, until we really |
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111 figure out what these mean. */ |
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112 #define AICA_PAN(x) ((x)==0x80?(0):((x)<0x80?(0x1f):(0x0f))) |
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113 #define AICA_VOL(x) (0xff - logs[128 + (((x) & 0xff) / 2)]) |
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114 //#define AICA_VOL(x) (0xff - logs[x&255]) |
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115 |
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116 static inline unsigned AICA_FREQ(unsigned freq) { |
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117 unsigned long freq_lo, freq_base = 5644800; |
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118 int freq_hi = 7; |
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119 |
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120 /* Need to convert frequency to floating point format |
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121 (freq_hi is exponent, freq_lo is mantissa) |
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122 Formula is ferq = 44100*2^freq_hi*(1+freq_lo/1024) */ |
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123 while (freq < freq_base && freq_hi > -8) { |
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124 freq_base >>= 1; |
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125 --freq_hi; |
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126 } |
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127 while (freq < freq_base && freq_hi > -8) { |
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128 freq_base >>= 1; |
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129 freq_hi--; |
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130 } |
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131 freq_lo = (freq<<10) / freq_base; |
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132 return (freq_hi << 11) | (freq_lo & 1023); |
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133 } |
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134 |
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135 /* Sets up a sound channel completely. This is generally good if you want |
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136 a quick and dirty way to play notes. If you want a more comprehensive |
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137 set of routines (more like PC wavetable cards) see below. |
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138 |
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139 ch is the channel to play on (0 - 63) |
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140 smpptr is the pointer to the sound data; if you're running off the |
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141 SH4, then this ought to be (ptr - 0xa0800000); otherwise it's just |
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142 ptr. Basically, it's an offset into sound ram. |
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143 mode is one of the mode constants (16 bit, 8 bit, ADPCM) |
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144 nsamp is the number of samples to play (not number of bytes!) |
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145 freq is the sampling rate of the sound |
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146 vol is the volume, 0 to 0xff (0xff is louder) |
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147 pan is a panning constant -- 0 is left, 128 is center, 255 is right. |
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148 |
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149 This routine (and the similar ones) owe a lot to Marcus' sound example -- |
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150 I hadn't gotten quite this far into dissecting the individual regs yet. */ |
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151 void aica_play(int ch,int mode,unsigned long smpptr,int loopst,int loopend,int freq,int vol,int pan,int loopflag) { |
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152 /* int i; |
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153 */ |
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154 int val; |
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155 int old = 0; |
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156 |
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157 /* Stop the channel (if it's already playing) */ |
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158 aica_stop(ch); |
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159 /* doesn't seem to be needed, but it's here just in case */ |
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160 /* |
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161 for (i=0; i<256; i++) { |
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162 asm("nop"); |
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163 asm("nop"); |
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164 asm("nop"); |
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165 asm("nop"); |
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166 } |
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167 */ |
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168 G2_LOCK(old); |
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169 /* Envelope setup. The first of these is the loop point, |
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170 e.g., where the sample starts over when it loops. The second |
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171 is the loop end. This is the full length of the sample when |
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172 you are not looping, or the loop end point when you are (though |
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173 storing more than that is a waste of memory if you're not doing |
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174 volume enveloping). */ |
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175 CHNREG32(ch, 8) = loopst & 0xffff; |
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176 CHNREG32(ch, 12) = loopend & 0xffff; |
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177 |
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178 /* Write resulting values */ |
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179 CHNREG32(ch, 24) = AICA_FREQ(freq); |
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180 |
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181 /* Set volume, pan, and some other things that we don't know what |
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182 they do =) */ |
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183 CHNREG32(ch, 36) = AICA_PAN(pan) | (0xf<<8); |
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184 /* Convert the incoming volume and pan into hardware values */ |
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185 /* Vol starts at zero so we can ramp */ |
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186 vol = AICA_VOL(vol); |
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187 CHNREG32(ch, 40) = 0x24 | (vol<<8); |
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188 /* Convert the incoming volume and pan into hardware values */ |
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189 /* Vol starts at zero so we can ramp */ |
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190 |
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191 /* If we supported volume envelopes (which we don't yet) then |
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192 this value would set that up. The top 4 bits determine the |
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193 envelope speed. f is the fastest, 1 is the slowest, and 0 |
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194 seems to be an invalid value and does weird things). The |
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195 default (below) sets it into normal mode (play and terminate/loop). |
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196 CHNREG32(ch, 16) = 0xf010; |
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197 */ |
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198 CHNREG32(ch, 16) = 0x1f; /* No volume envelope */ |
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199 |
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200 |
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201 /* Set sample format, buffer address, and looping control. If |
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202 0x0200 mask is set on reg 0, the sample loops infinitely. If |
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203 it's not set, the sample plays once and terminates. We'll |
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204 also set the bits to start playback here. */ |
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205 CHNREG32(ch, 4) = smpptr & 0xffff; |
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206 val = 0xc000 | 0x0000 | (mode<<7) | (smpptr >> 16); |
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207 if (loopflag) val|=0x200; |
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208 |
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209 CHNREG32(ch, 0) = val; |
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210 |
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211 G2_UNLOCK(old); |
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212 |
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213 /* Enable playback */ |
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214 /* CHNREG32(ch, 0) |= 0xc000; */ |
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215 g2_fifo_wait(); |
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216 |
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217 #if 0 |
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218 for (i=0xff; i>=vol; i--) { |
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219 if ((i&7)==0) g2_fifo_wait(); |
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220 CHNREG32(ch, 40) = 0x24 | (i<<8);; |
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221 } |
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222 |
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223 g2_fifo_wait(); |
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224 #endif |
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225 } |
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226 |
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227 /* Stop the sound on a given channel */ |
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228 void aica_stop(int ch) { |
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229 g2_write_32(CHNREGADDR(ch, 0),(g2_read_32(CHNREGADDR(ch, 0)) & ~0x4000) | 0x8000); |
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230 g2_fifo_wait(); |
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231 } |
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232 |
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233 |
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234 /* The rest of these routines can change the channel in mid-stride so you |
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235 can do things like vibrato and panning effects. */ |
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236 |
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237 /* Set channel volume */ |
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238 void aica_vol(int ch,int vol) { |
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239 // g2_write_8(CHNREGADDR(ch, 41),AICA_VOL(vol)); |
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240 g2_write_32(CHNREGADDR(ch, 40),(g2_read_32(CHNREGADDR(ch, 40))&0xffff00ff)|(AICA_VOL(vol)<<8) ); |
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241 g2_fifo_wait(); |
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242 } |
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243 |
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244 /* Set channel pan */ |
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245 void aica_pan(int ch,int pan) { |
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246 // g2_write_8(CHNREGADDR(ch, 36),AICA_PAN(pan)); |
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247 g2_write_32(CHNREGADDR(ch, 36),(g2_read_32(CHNREGADDR(ch, 36))&0xffffff00)|(AICA_PAN(pan)) ); |
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248 g2_fifo_wait(); |
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249 } |
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250 |
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251 /* Set channel frequency */ |
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252 void aica_freq(int ch,int freq) { |
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253 g2_write_32(CHNREGADDR(ch, 24),AICA_FREQ(freq)); |
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254 g2_fifo_wait(); |
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255 } |
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256 |
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257 /* Get channel position */ |
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258 int aica_get_pos(int ch) { |
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259 #if 1 |
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260 /* Observe channel ch */ |
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261 g2_write_32(SNDREGADDR(0x280c),(g2_read_32(SNDREGADDR(0x280c))&0xffff00ff) | (ch<<8)); |
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262 g2_fifo_wait(); |
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263 /* Update position counters */ |
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264 return g2_read_32(SNDREGADDR(0x2814)) & 0xffff; |
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265 #else |
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266 /* Observe channel ch */ |
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267 g2_write_8(SNDREGADDR(0x280d),ch); |
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268 /* Update position counters */ |
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269 return g2_read_32(SNDREGADDR(0x2814)) & 0xffff; |
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270 #endif |
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271 } |