Mercurial > sdl-ios-xcode
annotate src/video/SDL_yuv.c @ 1302:94643e9bad18
Date: Sat, 14 Jan 2006 15:16:01 -0500
From: Andrew Fuller
Subject: [SDL] [PATCH] ML-8866 PS2->USB converter
This converter seems to go by several names -- Super Dual Box, Dual
USB Joypad, and who knows what else. Also branded differently with
different colour cases, etc. But it seems to all be the same
internals. It is a common converter used for StepMania, with several
posts Googleable trying to make it work in Linux. I got mine
yesterday and wanted to play stepmania, so I went ahead and made a
crude patch for libsdl to split this baby into two logical joysticks.
A couple notes about the patch:
This patch works well for two dance mats hooked up and playing
stepmania, however the mapping of the other buttons may be off. I
have no joystick which uses all the buttons the converter reports, so
I have no way of testing them.
The name I used 0925:8866 which is the USB ID, and what SDLjoytest-GL
reported is the name, even though lsusb shows Wisegroup, Ltd MP-8866
Dual USB Joypad, and the existing virtual joystick mapping uses the
Wisegroup... name. Not sure why the discrepency.
I'm not subscribed to this mailing list, so please CC me on any
comments to this.
-Andrew
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 31 Jan 2006 14:59:43 +0000 |
| parents | b8d311d90021 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 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 /* This is the implementation of the YUV video surface support */ | |
| 29 | |
| 30 #include <stdlib.h> | |
| 31 #include <string.h> | |
| 32 | |
| 33 #include "SDL_getenv.h" | |
| 34 #include "SDL_video.h" | |
|
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You can't create a YUV overlay in OpenGL mode
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35 #include "SDL_error.h" |
| 0 | 36 #include "SDL_sysvideo.h" |
| 37 #include "SDL_yuvfuncs.h" | |
| 38 #include "SDL_yuv_sw_c.h" | |
| 39 | |
| 40 | |
| 41 SDL_Overlay *SDL_CreateYUVOverlay(int w, int h, Uint32 format, | |
| 42 SDL_Surface *display) | |
| 43 { | |
| 44 SDL_VideoDevice *video = current_video; | |
| 45 SDL_VideoDevice *this = current_video; | |
| 46 const char *yuv_hwaccel; | |
| 47 SDL_Overlay *overlay; | |
| 48 | |
|
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Oops, we only want to fail creation if the display surface is an OpenGL surface.
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49 if ( (display->flags & SDL_OPENGL) == SDL_OPENGL ) { |
|
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50 SDL_SetError("YUV overlays are not supported in OpenGL mode"); |
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51 return NULL; |
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52 } |
| 0 | 53 |
| 54 /* Display directly on video surface, if possible */ | |
|
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55 if ( getenv("SDL_VIDEO_YUV_DIRECT") ) { |
|
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56 if ( (display == SDL_PublicSurface) && |
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57 ((SDL_VideoSurface->format->BytesPerPixel == 2) || |
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58 (SDL_VideoSurface->format->BytesPerPixel == 4)) ) { |
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59 display = SDL_VideoSurface; |
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60 } |
| 0 | 61 } |
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You can't create a YUV overlay in OpenGL mode
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parents:
297
diff
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62 overlay = NULL; |
| 0 | 63 yuv_hwaccel = getenv("SDL_VIDEO_YUV_HWACCEL"); |
| 64 if ( ((display == SDL_VideoSurface) && video->CreateYUVOverlay) && | |
| 65 (!yuv_hwaccel || (atoi(yuv_hwaccel) > 0)) ) { | |
| 66 overlay = video->CreateYUVOverlay(this, w, h, format, display); | |
| 67 } | |
| 68 /* If hardware YUV overlay failed ... */ | |
| 69 if ( overlay == NULL ) { | |
| 70 overlay = SDL_CreateYUV_SW(this, w, h, format, display); | |
| 71 } | |
| 72 return overlay; | |
| 73 } | |
| 74 | |
| 75 int SDL_LockYUVOverlay(SDL_Overlay *overlay) | |
| 76 { | |
| 77 return overlay->hwfuncs->Lock(current_video, overlay); | |
| 78 } | |
| 79 | |
| 80 void SDL_UnlockYUVOverlay(SDL_Overlay *overlay) | |
| 81 { | |
| 82 overlay->hwfuncs->Unlock(current_video, overlay); | |
| 83 } | |
| 84 | |
| 85 int SDL_DisplayYUVOverlay(SDL_Overlay *overlay, SDL_Rect *dstrect) | |
| 86 { | |
| 87 return overlay->hwfuncs->Display(current_video, overlay, dstrect); | |
| 88 } | |
| 89 | |
| 90 void SDL_FreeYUVOverlay(SDL_Overlay *overlay) | |
| 91 { | |
| 92 if ( overlay ) { | |
| 93 if ( overlay->hwfuncs ) { | |
| 94 overlay->hwfuncs->FreeHW(current_video, overlay); | |
| 95 } | |
| 96 free(overlay); | |
| 97 } | |
| 98 } |