Mercurial > sdl-ios-xcode
view src/video/quartz/SDL_QuartzYUV.m @ 855:aa4ac9e65d92
I noticed MacOSX SDL sets up working directory to parent of executable.
On BeOS is should setup it the same way, but it only does when Tracker
wasn't restarted.
I checked code and it looks like a hack to me :(
It looks for env variable and than comapres it to default when OpenTracker
was started after boot, and wasn't restarted. That's probably ok, for that
exact case. Unfortunetly that variable isn't always like that. For
example, after Tracker crashes and is restarted, env variable most
probably is different (depends on how Tracker was restarted, by what
application, etc... for example: i have launcher application from which i
can restart Tracker, and after that nev variable points to that
application's directory, not Tracker's).
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 24 Feb 2004 18:58:40 +0000 |
parents | c5b2b6d2d1fe |
children | 19418e4422cb |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2003 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_QuartzVideo.h" #include "SDL_QuartzWindow.h" #include "SDL_yuvfuncs.h" #define yuv_idh (this->hidden->yuv_idh) #define yuv_matrix (this->hidden->yuv_matrix) #define yuv_codec (this->hidden->yuv_codec) #define yuv_seq (this->hidden->yuv_seq) #define yuv_pixmap (this->hidden->yuv_pixmap) #define yuv_data (this->hidden->yuv_data) #define yuv_width (this->hidden->yuv_width) #define yuv_height (this->hidden->yuv_height) #define yuv_port (this->hidden->yuv_port) static int QZ_LockYUV (_THIS, SDL_Overlay *overlay) { return 0; } static void QZ_UnlockYUV (_THIS, SDL_Overlay *overlay) { ; } static int QZ_DisplayYUV (_THIS, SDL_Overlay *overlay, SDL_Rect *dstrect) { OSErr err; CodecFlags flags; if (dstrect->x != 0 || dstrect->y != 0) { SDL_SetError ("Need a dstrect at (0,0)"); return -1; } if (dstrect->w != yuv_width || dstrect->h != yuv_height) { Fixed scale_x, scale_y; scale_x = FixDiv ( Long2Fix (dstrect->w), Long2Fix (overlay->w) ); scale_y = FixDiv ( Long2Fix (dstrect->h), Long2Fix (overlay->h) ); SetIdentityMatrix (yuv_matrix); ScaleMatrix (yuv_matrix, scale_x, scale_y, Long2Fix (0), Long2Fix (0)); SetDSequenceMatrix (yuv_seq, yuv_matrix); yuv_width = dstrect->w; yuv_height = dstrect->h; } if( ( err = DecompressSequenceFrameS( yuv_seq, (void*)yuv_pixmap, sizeof (PlanarPixmapInfoYUV420), codecFlagUseImageBuffer, &flags, nil ) != noErr ) ) { SDL_SetError ("DecompressSequenceFrameS failed"); } return err == noErr; } static void QZ_FreeHWYUV (_THIS, SDL_Overlay *overlay) { CDSequenceEnd (yuv_seq); ExitMovies(); free (overlay->hwfuncs); free (overlay->pitches); free (overlay->pixels); if (SDL_VideoSurface->flags & SDL_FULLSCREEN) { [ qz_window close ]; qz_window = nil; } free (yuv_matrix); DisposeHandle ((Handle)yuv_idh); } /* check for 16 byte alignment, bail otherwise */ #define CHECK_ALIGN(x) do { if ((Uint32)x & 15) { SDL_SetError("Alignment error"); return NULL; } } while(0) /* align a byte offset, return how much to add to make it a multiple of 16 */ #define ALIGN(x) ((16 - (x & 15)) & 15) SDL_Overlay* QZ_CreateYUVOverlay (_THIS, int width, int height, Uint32 format, SDL_Surface *display) { Uint32 codec; OSStatus err; CGrafPtr port; SDL_Overlay *overlay; if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) { codec = kYUV420CodecType; } else { SDL_SetError ("Hardware: unsupported video format"); return NULL; } yuv_idh = (ImageDescriptionHandle) NewHandleClear (sizeof(ImageDescription)); if (yuv_idh == NULL) { SDL_OutOfMemory(); return NULL; } yuv_matrix = (MatrixRecordPtr) malloc (sizeof(MatrixRecord)); if (yuv_matrix == NULL) { SDL_OutOfMemory(); return NULL; } if ( EnterMovies() != noErr ) { SDL_SetError ("Could not init QuickTime for YUV playback"); return NULL; } err = FindCodec (codec, bestSpeedCodec, nil, &yuv_codec); if (err != noErr) { SDL_SetError ("Could not find QuickTime codec for format"); return NULL; } if (SDL_VideoSurface->flags & SDL_FULLSCREEN) { /* Acceleration requires a window to be present. A CGrafPtr that points to the screen isn't good enough */ NSRect content = NSMakeRect (0, 0, SDL_VideoSurface->w, SDL_VideoSurface->h); qz_window = [ [ SDL_QuartzWindow alloc ] initWithContentRect:content styleMask:NSBorderlessWindowMask backing:NSBackingStoreBuffered defer:NO ]; if (qz_window == nil) { SDL_SetError ("Could not create the Cocoa window"); return NULL; } [ qz_window setContentView:[ [ NSQuickDrawView alloc ] init ] ]; [ qz_window setReleasedWhenClosed:YES ]; [ qz_window center ]; [ qz_window setAcceptsMouseMovedEvents:YES ]; [ qz_window setLevel:CGShieldingWindowLevel() ]; [ qz_window makeKeyAndOrderFront:nil ]; port = [ [ qz_window contentView ] qdPort ]; SetPort (port); /* BUG: would like to remove white flash when window kicks in { Rect r; SetRect (&r, 0, 0, SDL_VideoSurface->w, SDL_VideoSurface->h); PaintRect (&r); QDFlushPortBuffer (port, nil); } */ } else { port = [ window_view qdPort ]; SetPort (port); } SetIdentityMatrix (yuv_matrix); HLock ((Handle)yuv_idh); (**yuv_idh).idSize = sizeof(ImageDescription); (**yuv_idh).cType = codec; (**yuv_idh).version = 1; (**yuv_idh).revisionLevel = 0; (**yuv_idh).width = width; (**yuv_idh).height = height; (**yuv_idh).hRes = Long2Fix(72); (**yuv_idh).vRes = Long2Fix(72); (**yuv_idh).spatialQuality = codecLosslessQuality; (**yuv_idh).frameCount = 1; (**yuv_idh).clutID = -1; (**yuv_idh).dataSize = 0; (**yuv_idh).depth = 24; HUnlock ((Handle)yuv_idh); err = DecompressSequenceBeginS ( &yuv_seq, yuv_idh, NULL, 0, port, NULL, NULL, yuv_matrix, 0, NULL, codecFlagUseImageBuffer, codecLosslessQuality, yuv_codec); if (err != noErr) { SDL_SetError ("Error trying to start YUV codec."); return NULL; } overlay = (SDL_Overlay*) malloc (sizeof(*overlay)); if (overlay == NULL) { SDL_OutOfMemory(); return NULL; } overlay->format = format; overlay->w = width; overlay->h = height; overlay->planes = 3; overlay->hw_overlay = 1; { int offset; Uint8 **pixels; Uint16 *pitches; int plane2, plane3; if (format == SDL_IYUV_OVERLAY) { plane2 = 1; /* Native codec format */ plane3 = 2; } else if (format == SDL_YV12_OVERLAY) { /* switch the U and V planes */ plane2 = 2; /* U plane maps to plane 3 */ plane3 = 1; /* V plane maps to plane 2 */ } else { SDL_SetError("Unsupported YUV format"); return NULL; } pixels = (Uint8**) malloc (sizeof(*pixels) * 3); pitches = (Uint16*) malloc (sizeof(*pitches) * 3); if (pixels == NULL || pitches == NULL) { SDL_OutOfMemory(); return NULL; } yuv_pixmap = (PlanarPixmapInfoYUV420*) malloc (sizeof(PlanarPixmapInfoYUV420) + (width * height * 2)); if (yuv_pixmap == NULL) { SDL_OutOfMemory (); return NULL; } /* CHECK_ALIGN(yuv_pixmap); */ offset = sizeof(PlanarPixmapInfoYUV420); /* offset += ALIGN(offset); */ /* CHECK_ALIGN(offset); */ pixels[0] = (Uint8*)yuv_pixmap + offset; /* CHECK_ALIGN(pixels[0]); */ pitches[0] = width; yuv_pixmap->componentInfoY.offset = offset; yuv_pixmap->componentInfoY.rowBytes = width; offset += width * height; pixels[plane2] = (Uint8*)yuv_pixmap + offset; pitches[plane2] = width / 2; yuv_pixmap->componentInfoCb.offset = offset; yuv_pixmap->componentInfoCb.rowBytes = width / 2; offset += (width * height / 4); pixels[plane3] = (Uint8*)yuv_pixmap + offset; pitches[plane3] = width / 2; yuv_pixmap->componentInfoCr.offset = offset; yuv_pixmap->componentInfoCr.rowBytes = width / 2; overlay->pixels = pixels; overlay->pitches = pitches; } overlay->hwfuncs = malloc (sizeof(*overlay->hwfuncs)); if (overlay->hwfuncs == NULL) { SDL_OutOfMemory(); return NULL; } overlay->hwfuncs->Lock = QZ_LockYUV; overlay->hwfuncs->Unlock = QZ_UnlockYUV; overlay->hwfuncs->Display = QZ_DisplayYUV; overlay->hwfuncs->FreeHW = QZ_FreeHWYUV; yuv_width = overlay->w; yuv_height = overlay->h; return overlay; }