Mercurial > sdl-ios-xcode

view src/main/macos/SDL.r @ 4216:5b99971a27b4 SDL-1.2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fixed bug #698 Hans de Goede 2009-02-13 01:10:52 PST Since the new "glitch free" version of pulseaudio (used in Fedora 10 amongst others), the sound of SDL using apps (like a simple playmus call) has been crackling. While looking in to fixing this I noticed that the current pulseaudio code in SDL uses pa_simple. However pa_simple uses a thread to pump pulseaudio events and ipc, given that SDL already has its own thread for audio handling this is clearly suboptimal, leading to unnecessary context switching IPC, etc. Also pa_simple does not allow one to implement the WaitAudio() callback for SDL audiodrivers properly. Given that my work is mostly a rewrite (although some original pieces remain) I'm attaching the new .c and .h file, as that is easier to review then the huge diff. Let me know if you also want the diff. This new version has the following features: -no longer use an additional thread next to the SDL sound thread -do not crackle with glitch free audio -when used with a newer pulse, which does glitch free audio, the total latency is the same as with the alsa driver -proper WaitAudio() implementation, saving another mixlen worth of latency -adds a WaitDone() implementation This patch has been written in consultancy with Lennart Poetering (the pulseaudio author) and has been reviewed by him for correct use of the pa API.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 21 Sep 2009 09:27:08 +0000
parents 74212992fb08
children 1e191391e68d
line wrap: on
line source

data 'DLOG' (1000) {
	$"0072 0040 00EA 01B3 0001 0100 0000 0000 0000 03E8 0C43 6F6D 6D61 6E64 204C 696E"                    /* .r.@..............Command Lin */
	$"6500 280A"                                                                                          /* e.( */
};

data 'DLOG' (1001) {
	$"0072 0040 00DB 01AC 0001 0100 0000 0000 0000 03E9 0C45 7272 6F72 2057 696E 646F"                    /* .r.@..............Error Windo */
	$"7700 280A"                                                                                          /* w.( */
};

data 'DLOG' (1002) {
	$"00B8 00BE 0147 01D8 0005 0100 0000 0000 0000 03EA 1643 6F6E 6669 726D 2044 6973"                    /* ...G.............Confirm Dis */
	$"706C 6179 2043 6861 6E67 6510 280A"                                                                 /* play Change.( */
};

data 'DITL' (1000) {
	$"0005 0000 0000 0052 0113 0066 0158 0402 4F4B 0000 0000 0052 00C2 0066 0107 0406"                    /* .......R...f.X..OK.....R..f.... */
	$"4361 6E63 656C 0000 0000 000F 0084 001F 0155 1000 0000 0000 0054 0019 0066 007D"                    /* Cancel..........U.......T...f.} */
	$"050E 4F75 7470 7574 2074 6F20 6669 6C65 0000 0000 000F 0018 001F 007F 080D 436F"                    /* ..Output to file..............Co */
	$"6D6D 616E 6420 4C69 6E65 3A00 0000 0000 0030 0018 0040 0158 0702 0080"                              /* mmand Line:......0...@.X... */
};

data 'DITL' (1001) {
	$"0001 0000 0000 0046 0120 005A 015A 0402 4F4B 0000 0000 0010 000A 0038 0160 0800"                    /* .......F. .Z.Z..OK........8.`.. */
};

data 'DITL' (1002) {
	$"0002 0000 0000 006F 001E 0083 0058 0406 4361 6E63 656C 0000 0000 006E 00C0 0082"                    /* .......o....X..Cancel.....n.. */
	$"00FA 0402 4F4B 0000 0000 000E 000F 005F 010C 88B3 5468 6520 7365 7474 696E 6720"                    /* ...OK........._..The setting  */
	$"666F 7220 796F 7572 206D 6F6E 6974 6F72 2068 6173 2062 6565 6E20 6368 616E 6765"                    /* for your monitor has been change */
	$"642C 2061 6E64 2069 7420 6D61 7920 6E6F 7420 6265 2064 6973 706C 6179 6564 2063"                    /* d, and it may not be displayed c */
	$"6F72 7265 6374 6C79 2E20 546F 2063 6F6E 6669 726D 2074 6865 2064 6973 706C 6179"                    /* orrectly. To confirm the display */
	$"2069 7320 636F 7272 6563 742C 2063 6C69 636B 204F 4B2E 2054 6F20 7265 7475 726E"                    /*  is correct, click OK. To return */
	$"2074 6F20 7468 6520 6F72 6967 696E 616C 2073 6574 7469 6E67 2C20 636C 6963 6B20"                    /*  to the original setting, click  */
	$"4361 6E63 656C 2E00"                                                                                /* Cancel.. */
};

data 'MENU' (128, preload) {
	$"0080 0000 0000 0000 0000 FFFF FFFB 0114 0C41 626F 7574 2053 444C 2E2E 2E00 0000"                    /* ............About SDL...... */
	$"0001 2D00 0000 0000"                                                                                /* ..-..... */
};

data 'MENU' (129) {
	$"0081 0000 0000 0000 0000 FFFF FFFF 0C56 6964 656F 2044 7269 7665 7219 4472 6177"                    /* ..........Video Driver.Draw */
	$"5370 726F 636B 6574 2028 4675 6C6C 7363 7265 656E 2900 0000 001E 546F 6F6C 426F"                    /* Sprocket (Fullscreen).....ToolBo */
	$"7820 2028 4675 6C6C 7363 7265 656E 2F57 696E 646F 7765 6429 0000 0000 00"                           /* x  (Fullscreen/Windowed)..... */
};

data 'CNTL' (128) {
	$"0000 0000 0010 0140 0000 0100 0064 0081 03F0 0000 0000 0D56 6964 656F 2044 7269"                    /* .......@.....d.......Video Dri */
	$"7665 723A"                                                                                          /* ver: */
};

data 'TMPL' (128, "CLne") {
	$"0C43 6F6D 6D61 6E64 204C 696E 6550 5354 520C 5669 6465 6F20 4472 6976 6572 5053"                    /* .Command LinePSTR.Video DriverPS */
	$"5452 0C53 6176 6520 546F 2046 696C 6542 4F4F 4C"                                                    /* TR.Save To FileBOOL */
};