Mercurial > sdl-ios-xcode
annotate src/audio/dc/SDL_dcaudio.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 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
4159 | 3 Copyright (C) 1997-2009 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 |
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16 License along with this library; if not, write to the Free Software |
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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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20 slouken@libsdl.org |
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21 |
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22 */ |
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23 #include "SDL_config.h" |
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24 |
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25 /* Output dreamcast aica */ |
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26 |
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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_audiomem.h" |
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30 #include "../SDL_audio_c.h" |
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31 #include "../SDL_audiodev_c.h" |
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32 #include "SDL_dcaudio.h" |
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33 |
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34 #include "aica.h" |
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35 #include <dc/spu.h> |
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36 |
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37 /* Audio driver functions */ |
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38 static int DCAUD_OpenAudio(_THIS, SDL_AudioSpec *spec); |
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39 static void DCAUD_WaitAudio(_THIS); |
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40 static void DCAUD_PlayAudio(_THIS); |
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41 static Uint8 *DCAUD_GetAudioBuf(_THIS); |
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42 static void DCAUD_CloseAudio(_THIS); |
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43 |
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44 /* Audio driver bootstrap functions */ |
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45 static int DCAUD_Available(void) |
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46 { |
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47 return 1; |
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48 } |
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49 |
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50 static void DCAUD_DeleteDevice(SDL_AudioDevice *device) |
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51 { |
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52 SDL_free(device->hidden); |
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53 SDL_free(device); |
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54 } |
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55 |
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56 static SDL_AudioDevice *DCAUD_CreateDevice(int devindex) |
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57 { |
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58 SDL_AudioDevice *this; |
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59 |
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60 /* Initialize all variables that we clean on shutdown */ |
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61 this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice)); |
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62 if ( this ) { |
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63 SDL_memset(this, 0, (sizeof *this)); |
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64 this->hidden = (struct SDL_PrivateAudioData *) |
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65 SDL_malloc((sizeof *this->hidden)); |
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66 } |
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67 if ( (this == NULL) || (this->hidden == NULL) ) { |
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68 SDL_OutOfMemory(); |
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69 if ( this ) { |
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70 SDL_free(this); |
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71 } |
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72 return(0); |
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73 } |
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74 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); |
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75 |
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76 /* Set the function pointers */ |
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77 this->OpenAudio = DCAUD_OpenAudio; |
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78 this->WaitAudio = DCAUD_WaitAudio; |
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79 this->PlayAudio = DCAUD_PlayAudio; |
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80 this->GetAudioBuf = DCAUD_GetAudioBuf; |
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81 this->CloseAudio = DCAUD_CloseAudio; |
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82 |
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83 this->free = DCAUD_DeleteDevice; |
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84 |
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85 spu_init(); |
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86 |
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87 return this; |
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88 } |
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89 |
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90 AudioBootStrap DCAUD_bootstrap = { |
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91 "dcaudio", "Dreamcast AICA audio", |
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92 DCAUD_Available, DCAUD_CreateDevice |
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93 }; |
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94 |
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95 /* This function waits until it is possible to write a full sound buffer */ |
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96 static void DCAUD_WaitAudio(_THIS) |
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97 { |
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98 if (this->hidden->playing) { |
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99 /* wait */ |
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100 while(aica_get_pos(0)/this->spec.samples == this->hidden->nextbuf) { |
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101 thd_pass(); |
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102 } |
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103 } |
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104 } |
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105 |
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106 #define SPU_RAM_BASE 0xa0800000 |
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107 |
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108 static void spu_memload_stereo8(int leftpos,int rightpos,void *src0,size_t size) |
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109 { |
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110 uint8 *src = src0; |
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111 uint32 *left = (uint32*)(leftpos +SPU_RAM_BASE); |
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112 uint32 *right = (uint32*)(rightpos+SPU_RAM_BASE); |
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113 size = (size+7)/8; |
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114 while(size--) { |
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115 unsigned lval,rval; |
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116 lval = *src++; |
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117 rval = *src++; |
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118 lval|= (*src++)<<8; |
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119 rval|= (*src++)<<8; |
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120 lval|= (*src++)<<16; |
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121 rval|= (*src++)<<16; |
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122 lval|= (*src++)<<24; |
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123 rval|= (*src++)<<24; |
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124 g2_write_32(left++,lval); |
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125 g2_write_32(right++,rval); |
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126 g2_fifo_wait(); |
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127 } |
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128 } |
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129 |
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130 static void spu_memload_stereo16(int leftpos,int rightpos,void *src0,size_t size) |
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131 { |
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132 uint16 *src = src0; |
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133 uint32 *left = (uint32*)(leftpos +SPU_RAM_BASE); |
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134 uint32 *right = (uint32*)(rightpos+SPU_RAM_BASE); |
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135 size = (size+7)/8; |
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136 while(size--) { |
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137 unsigned lval,rval; |
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138 lval = *src++; |
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139 rval = *src++; |
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140 lval|= (*src++)<<16; |
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141 rval|= (*src++)<<16; |
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142 g2_write_32(left++,lval); |
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143 g2_write_32(right++,rval); |
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144 g2_fifo_wait(); |
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145 } |
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146 } |
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147 |
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148 static void DCAUD_PlayAudio(_THIS) |
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149 { |
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150 SDL_AudioSpec *spec = &this->spec; |
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151 unsigned int offset; |
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152 |
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153 if (this->hidden->playing) { |
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154 /* wait */ |
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155 while(aica_get_pos(0)/spec->samples == this->hidden->nextbuf) { |
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156 thd_pass(); |
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157 } |
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158 } |
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159 |
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160 offset = this->hidden->nextbuf*spec->size; |
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161 this->hidden->nextbuf^=1; |
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162 /* Write the audio data, checking for EAGAIN on broken audio drivers */ |
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163 if (spec->channels==1) { |
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164 spu_memload(this->hidden->leftpos+offset,this->hidden->mixbuf,this->hidden->mixlen); |
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165 } else { |
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166 offset/=2; |
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167 if ((this->spec.format&255)==8) { |
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168 spu_memload_stereo8(this->hidden->leftpos+offset,this->hidden->rightpos+offset,this->hidden->mixbuf,this->hidden->mixlen); |
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169 } else { |
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170 spu_memload_stereo16(this->hidden->leftpos+offset,this->hidden->rightpos+offset,this->hidden->mixbuf,this->hidden->mixlen); |
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171 } |
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172 } |
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173 |
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174 if (!this->hidden->playing) { |
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175 int mode; |
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176 this->hidden->playing = 1; |
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177 mode = (spec->format==AUDIO_S8)?SM_8BIT:SM_16BIT; |
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178 if (spec->channels==1) { |
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179 aica_play(0,mode,this->hidden->leftpos,0,spec->samples*2,spec->freq,255,128,1); |
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180 } else { |
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181 aica_play(0,mode,this->hidden->leftpos ,0,spec->samples*2,spec->freq,255,0,1); |
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182 aica_play(1,mode,this->hidden->rightpos,0,spec->samples*2,spec->freq,255,255,1); |
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183 } |
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184 } |
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185 } |
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186 |
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187 static Uint8 *DCAUD_GetAudioBuf(_THIS) |
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188 { |
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189 return(this->hidden->mixbuf); |
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190 } |
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191 |
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192 static void DCAUD_CloseAudio(_THIS) |
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193 { |
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194 aica_stop(0); |
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195 if (this->spec.channels==2) aica_stop(1); |
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196 if ( this->hidden->mixbuf != NULL ) { |
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197 SDL_FreeAudioMem(this->hidden->mixbuf); |
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198 this->hidden->mixbuf = NULL; |
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199 } |
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200 } |
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201 |
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202 static int DCAUD_OpenAudio(_THIS, SDL_AudioSpec *spec) |
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203 { |
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204 Uint16 test_format = SDL_FirstAudioFormat(spec->format); |
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205 int valid_datatype = 0; |
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206 while ((!valid_datatype) && (test_format)) { |
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207 spec->format = test_format; |
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208 switch (test_format) { |
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209 /* only formats Dreamcast accepts... */ |
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210 case AUDIO_S8: |
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211 case AUDIO_S16LSB: |
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212 valid_datatype = 1; |
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213 break; |
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214 |
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215 default: |
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216 test_format = SDL_NextAudioFormat(); |
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217 break; |
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218 } |
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219 } |
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220 |
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221 if (!valid_datatype) { /* shouldn't happen, but just in case... */ |
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222 SDL_SetError("Unsupported audio format"); |
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223 return (-1); |
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224 } |
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225 |
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226 if (spec->channels > 2) |
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227 spec->channels = 2; /* no more than stereo on the Dreamcast. */ |
509
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228 |
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229 /* Update the fragment size as size in bytes */ |
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230 SDL_CalculateAudioSpec(spec); |
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231 |
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232 /* Allocate mixing buffer */ |
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233 this->hidden->mixlen = spec->size; |
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234 this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen); |
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235 if ( this->hidden->mixbuf == NULL ) { |
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236 return(-1); |
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237 } |
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238 SDL_memset(this->hidden->mixbuf, spec->silence, spec->size); |
509
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239 this->hidden->leftpos = 0x11000; |
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240 this->hidden->rightpos = 0x11000+spec->size; |
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241 this->hidden->playing = 0; |
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242 this->hidden->nextbuf = 0; |
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243 |
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244 /* We're ready to rock and roll. :-) */ |
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245 return(0); |
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246 } |