Mercurial > sdl-ios-xcode
annotate src/video/SDL_yuv.c @ 662:66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
From: Max Horn
Subject: SDL whitespace patch
this patch is lowest priority: it only contains indention fixes. In
some places, instead of tabs, whitespaces where used for indention. But
of course that only "looks good" if you use the exact same tab width as
the author of those files. I tried to replace such cases with tabs for
a more uniform indention. I only did that for a few files.
So, no code changes in this, only whitespaces transformed.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 28 Jul 2003 01:47:55 +0000 |
| parents | 73440ac574a2 |
| children | cf9dd3aa6756 |
| 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 /* 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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73440ac574a2
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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You can't create a YUV overlay in OpenGL mode
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49 if ( (SDL_VideoSurface->flags & SDL_OPENGL) == SDL_OPENGL ) { |
|
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You can't create a YUV overlay in OpenGL mode
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50 SDL_SetError("YUV overlays are not supported in OpenGL mode"); |
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You can't create a YUV overlay in OpenGL mode
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51 return NULL; |
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73440ac574a2
You can't create a YUV overlay in OpenGL mode
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
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52 } |
| 0 | 53 |
| 54 /* Display directly on video surface, if possible */ | |
|
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Added the SDL_VIDEO_YUV_DIRECT hack for better performance when the
Sam Lantinga <slouken@lokigames.com>
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55 if ( getenv("SDL_VIDEO_YUV_DIRECT") ) { |
|
1a2723474f12
Added the SDL_VIDEO_YUV_DIRECT hack for better performance when the
Sam Lantinga <slouken@lokigames.com>
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56 if ( (display == SDL_PublicSurface) && |
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1a2723474f12
Added the SDL_VIDEO_YUV_DIRECT hack for better performance when the
Sam Lantinga <slouken@lokigames.com>
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57 ((SDL_VideoSurface->format->BytesPerPixel == 2) || |
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Added the SDL_VIDEO_YUV_DIRECT hack for better performance when the
Sam Lantinga <slouken@lokigames.com>
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58 (SDL_VideoSurface->format->BytesPerPixel == 4)) ) { |
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1a2723474f12
Added the SDL_VIDEO_YUV_DIRECT hack for better performance when the
Sam Lantinga <slouken@lokigames.com>
parents:
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59 display = SDL_VideoSurface; |
|
1a2723474f12
Added the SDL_VIDEO_YUV_DIRECT hack for better performance when the
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
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60 } |
| 0 | 61 } |
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660
73440ac574a2
You can't create a YUV overlay in OpenGL mode
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
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 } |