Mercurial > sdl-ios-xcode
annotate src/main/beos/SDL_BeApp.cc @ 689:5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
From: Stephane Marchesin
Subject: Re: [SDL] [patch] MMX alpha blit patches with MMX detection
I think everything is correct now. I've done as much testing as I could,
but some real-world testing wouldn't hurt, I think.
The patch is here : http://icps.u-strasbg.fr/~marchesin/sdl_mmxblit.patch
If you do byte-by-byte comparison of the output between C and MMX
functions, you'll notice that the results for 555 and 565 RGB alpha
blits aren't exactly the same. This is because MMX functions for 555 and
565 RGB have an higher accuracy. If you want the exact same behaviour
that's possible by masking the three lower alpha bits in the MMX
functions. Just ask !
I removed one MMX function because after I fixed it to match its C
equivalent, it revealed to be slower than the C version on a PIII
(although a bit faster on an Athlon XP).
I've also added MMX and PIII replacements for SDL_memcpy. Those provide
some speed up in testvidinfo -benchmark (at least for me, under linux &
X11).
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 22 Aug 2003 05:51:19 +0000 |
| parents | 6c3fa3b5e397 |
| children | b8d311d90021 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2002
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|
3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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Updated the source with the correct e-mail address
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Handle the BeApp specific portions of the application */ | |
| 29 | |
| 30 #include <AppKit.h> | |
| 31 #include <storage/Path.h> | |
| 32 #include <storage/Entry.h> | |
| 33 #include <stdlib.h> | |
|
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Fixed build error on BeOS
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|
34 #include <string.h> |
| 0 | 35 #include <unistd.h> |
| 36 | |
| 37 #include "SDL_BeApp.h" | |
| 38 #include "SDL_thread.h" | |
| 39 #include "SDL_timer.h" | |
| 40 #include "SDL_error.h" | |
| 41 | |
| 42 /* Flag to tell whether or not the Be application is active or not */ | |
| 43 int SDL_BeAppActive = 0; | |
| 44 static SDL_Thread *SDL_AppThread = NULL; | |
| 45 | |
| 46 static int StartBeApp(void *unused) | |
| 47 { | |
| 48 BApplication *App; | |
| 49 | |
| 50 App = new BApplication("application/x-SDL-executable"); | |
| 51 | |
| 52 App->Run(); | |
| 53 delete App; | |
| 54 return(0); | |
| 55 } | |
| 56 | |
| 57 /* Initialize the Be Application, if it's not already started */ | |
| 58 int SDL_InitBeApp(void) | |
| 59 { | |
| 60 /* Create the BApplication that handles appserver interaction */ | |
| 61 if ( SDL_BeAppActive <= 0 ) { | |
| 62 SDL_AppThread = SDL_CreateThread(StartBeApp, NULL); | |
| 63 if ( SDL_AppThread == NULL ) { | |
| 64 SDL_SetError("Couldn't create BApplication thread"); | |
| 65 return(-1); | |
| 66 } | |
| 67 | |
| 68 /* Check if we started from Terminal or Tracker... */ | |
| 69 /* Based on code posted to BeDevTalk by Marco Nelissen */ | |
| 70 char *cmd = getenv("_"); | |
| 71 if(!(cmd == NULL || strlen(cmd) < 7) && | |
| 72 (!strcmp(cmd + strlen(cmd) - 7 , "Tracker"))) { | |
| 73 | |
| 74 /* Change working to directory to that of executable */ | |
| 75 app_info info; | |
| 76 if (B_OK == be_app->GetAppInfo(&info)) { | |
| 77 entry_ref ref = info.ref; | |
| 78 BEntry entry; | |
| 79 if (B_OK == entry.SetTo(&ref)) { | |
| 80 BPath path; | |
| 81 if (B_OK == path.SetTo(&entry)) { | |
| 82 if (B_OK == path.GetParent(&path)) { | |
| 83 chdir(path.Path()); | |
| 84 } | |
| 85 } | |
| 86 } | |
| 87 } | |
| 88 } /* else started from Terminal */ | |
| 89 | |
| 90 do { | |
| 91 SDL_Delay(10); | |
| 92 } while ( (be_app == NULL) || be_app->IsLaunching() ); | |
| 93 | |
| 94 /* Mark the application active */ | |
| 95 SDL_BeAppActive = 0; | |
| 96 } | |
| 97 | |
| 98 /* Increment the application reference count */ | |
| 99 ++SDL_BeAppActive; | |
| 100 | |
| 101 /* The app is running, and we're ready to go */ | |
| 102 return(0); | |
| 103 } | |
| 104 | |
| 105 /* Quit the Be Application, if there's nothing left to do */ | |
| 106 void SDL_QuitBeApp(void) | |
| 107 { | |
| 108 /* Decrement the application reference count */ | |
| 109 --SDL_BeAppActive; | |
| 110 | |
| 111 /* If the reference count reached zero, clean up the app */ | |
| 112 if ( SDL_BeAppActive == 0 ) { | |
| 113 if ( SDL_AppThread != NULL ) { | |
| 114 if ( be_app != NULL ) { /* Not tested */ | |
| 115 be_app->PostMessage(B_QUIT_REQUESTED); | |
| 116 } | |
| 117 SDL_WaitThread(SDL_AppThread, NULL); | |
| 118 SDL_AppThread = NULL; | |
| 119 } | |
| 120 /* be_app should now be NULL since be_app has quit */ | |
| 121 } | |
| 122 } |