Mercurial > sdl-ios-xcode
view src/video/quartz/SDL_QuartzYUV.m @ 821:30168104389f
Date: Sat, 14 Feb 2004 14:52:40 +0200
From: "Mike Gorchak"
Subject: Batch of the QNX6 fixes for the SDL
1. Updated readme.QNX
2. Fixed crashes during intensive window updating under fast machines (got over 200 rectangles for update).
3. Fixed double-buffered fullscreen modes, now it works as needed.
4. Fixed Photon detection algorithm.
5. Fixed HWSURFACE update function.
6. Added SDL_PHOTON_FULLSCREEN_REFRESH environment variable support for control refresh rates under Photon.
7. Added 640x400 fullscreen mode emulation via 640x480 (if videodriver not supports original 640x400 mode of course) shifted by 40 vertical pixels from begin, to center it. It's needed for some old DOS games which ran in doubled 320x200 mode.
8. Added available video ram amount support.
8. Added hardware surface allocation/deallocation support if current videomode and videodriver supports it.
9. Added hardware filling support.
10. Added hardware blits support (simple and colorkeyed).
And I've added to testvidinfo test color-keyed blits benchmark (maybe need to add alpha blits benchmark too ?). Currently Photon not supporting any alpha hardware blittings (all drivers lack of alpha blitting code support, only software alpha blitting exist in photon, which is hundreds times slowest than the SDL's one). So I've not added the alpha support. I suppose new QNX 6.3 will have the hardware alpha support, so when it will be done, I'll add alpha support.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 14 Feb 2004 20:22:21 +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; }