Mercurial > sdl-ios-xcode
view src/video/windx5/SDL_dx5yuv.c @ 4179:d7294b7c732d SDL-1.2
Date: Fri, 24 Apr 2009 17:47:07 +0200
From: Stefan Klug
Subject: Re: [SDL] SVN doesn't compile for wince
the patch applied for Revision 4483 was seemingly not checked for side
effects.
It broke the WinCE build.
The attached patch should fix these problems. I'm not using SDL 1.2 on
CE anymore, and therefore haven't tested the patch... but at least it
compiles ;-)
Regards Stefan
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Thu, 07 May 2009 12:40:16 +0000 |
parents | a1b03ba2fcd0 |
children | eada7e321df6 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" /* This is the DirectDraw implementation of YUV video overlays */ #include "SDL_video.h" #include "SDL_dx5yuv_c.h" #include "../SDL_yuvfuncs.h" //#define USE_DIRECTX_OVERLAY /* The functions used to manipulate software video overlays */ static struct private_yuvhwfuncs dx5_yuvfuncs = { DX5_LockYUVOverlay, DX5_UnlockYUVOverlay, DX5_DisplayYUVOverlay, DX5_FreeYUVOverlay }; struct private_yuvhwdata { LPDIRECTDRAWSURFACE3 surface; /* These are just so we don't have to allocate them separately */ Uint16 pitches[3]; Uint8 *planes[3]; }; static LPDIRECTDRAWSURFACE3 CreateYUVSurface(_THIS, int width, int height, Uint32 format) { HRESULT result; LPDIRECTDRAWSURFACE dd_surface1; LPDIRECTDRAWSURFACE3 dd_surface3; DDSURFACEDESC ddsd; /* Set up the surface description */ SDL_memset(&ddsd, 0, sizeof(ddsd)); ddsd.dwSize = sizeof(ddsd); ddsd.dwFlags = (DDSD_WIDTH|DDSD_HEIGHT|DDSD_CAPS|DDSD_PIXELFORMAT); ddsd.dwWidth = width; ddsd.dwHeight= height; #ifdef USE_DIRECTX_OVERLAY ddsd.ddsCaps.dwCaps = (DDSCAPS_OVERLAY|DDSCAPS_VIDEOMEMORY); #else ddsd.ddsCaps.dwCaps = (DDSCAPS_OFFSCREENPLAIN|DDSCAPS_VIDEOMEMORY); #endif ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat); ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC; ddsd.ddpfPixelFormat.dwFourCC = format; /* Create the DirectDraw video surface */ result = IDirectDraw2_CreateSurface(ddraw2, &ddsd, &dd_surface1, NULL); if ( result != DD_OK ) { SetDDerror("DirectDraw2::CreateSurface", result); return(NULL); } result = IDirectDrawSurface_QueryInterface(dd_surface1, &IID_IDirectDrawSurface3, (LPVOID *)&dd_surface3); IDirectDrawSurface_Release(dd_surface1); if ( result != DD_OK ) { SetDDerror("DirectDrawSurface::QueryInterface", result); return(NULL); } /* Make sure the surface format was set properly */ SDL_memset(&ddsd, 0, sizeof(ddsd)); ddsd.dwSize = sizeof(ddsd); result = IDirectDrawSurface3_Lock(dd_surface3, NULL, &ddsd, DDLOCK_NOSYSLOCK, NULL); if ( result != DD_OK ) { SetDDerror("DirectDrawSurface3::Lock", result); IDirectDrawSurface_Release(dd_surface3); return(NULL); } IDirectDrawSurface3_Unlock(dd_surface3, NULL); if ( !(ddsd.ddpfPixelFormat.dwFlags & DDPF_FOURCC) || (ddsd.ddpfPixelFormat.dwFourCC != format) ) { SDL_SetError("DDraw didn't use requested FourCC format"); IDirectDrawSurface_Release(dd_surface3); return(NULL); } /* We're ready to go! */ return(dd_surface3); } #ifdef DEBUG_YUV static char *PrintFOURCC(Uint32 code) { static char buf[5]; buf[3] = code >> 24; buf[2] = (code >> 16) & 0xFF; buf[1] = (code >> 8) & 0xFF; buf[0] = (code & 0xFF); return(buf); } #endif SDL_Overlay *DX5_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display) { SDL_Overlay *overlay; struct private_yuvhwdata *hwdata; #ifdef DEBUG_YUV DWORD numcodes; DWORD *codes; printf("FOURCC format requested: 0x%x\n", PrintFOURCC(format)); IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, NULL); if ( numcodes ) { DWORD i; codes = SDL_malloc(numcodes*sizeof(*codes)); if ( codes ) { IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, codes); for ( i=0; i<numcodes; ++i ) { fprintf(stderr, "Code %d: 0x%x\n", i, PrintFOURCC(codes[i])); } SDL_free(codes); } } else { fprintf(stderr, "No FOURCC codes supported\n"); } #endif /* Create the overlay structure */ overlay = (SDL_Overlay *)SDL_malloc(sizeof *overlay); if ( overlay == NULL ) { SDL_OutOfMemory(); return(NULL); } SDL_memset(overlay, 0, (sizeof *overlay)); /* Fill in the basic members */ overlay->format = format; overlay->w = width; overlay->h = height; /* Set up the YUV surface function structure */ overlay->hwfuncs = &dx5_yuvfuncs; /* Create the pixel data and lookup tables */ hwdata = (struct private_yuvhwdata *)SDL_malloc(sizeof *hwdata); overlay->hwdata = hwdata; if ( hwdata == NULL ) { SDL_OutOfMemory(); SDL_FreeYUVOverlay(overlay); return(NULL); } hwdata->surface = CreateYUVSurface(this, width, height, format); if ( hwdata->surface == NULL ) { SDL_FreeYUVOverlay(overlay); return(NULL); } overlay->hw_overlay = 1; /* Set up the plane pointers */ overlay->pitches = hwdata->pitches; overlay->pixels = hwdata->planes; switch (format) { case SDL_YV12_OVERLAY: case SDL_IYUV_OVERLAY: overlay->planes = 3; break; default: overlay->planes = 1; break; } /* We're all done.. */ return(overlay); } int DX5_LockYUVOverlay(_THIS, SDL_Overlay *overlay) { HRESULT result; LPDIRECTDRAWSURFACE3 surface; DDSURFACEDESC ddsd; surface = overlay->hwdata->surface; SDL_memset(&ddsd, 0, sizeof(ddsd)); ddsd.dwSize = sizeof(ddsd); result = IDirectDrawSurface3_Lock(surface, NULL, &ddsd, DDLOCK_NOSYSLOCK, NULL); if ( result == DDERR_SURFACELOST ) { result = IDirectDrawSurface3_Restore(surface); result = IDirectDrawSurface3_Lock(surface, NULL, &ddsd, (DDLOCK_NOSYSLOCK|DDLOCK_WAIT), NULL); } if ( result != DD_OK ) { SetDDerror("DirectDrawSurface3::Lock", result); return(-1); } /* Find the pitch and offset values for the overlay */ #if defined(NONAMELESSUNION) overlay->pitches[0] = (Uint16)ddsd.u1.lPitch; #else overlay->pitches[0] = (Uint16)ddsd.lPitch; #endif overlay->pixels[0] = (Uint8 *)ddsd.lpSurface; switch (overlay->format) { case SDL_YV12_OVERLAY: case SDL_IYUV_OVERLAY: /* Add the two extra planes */ overlay->pitches[1] = overlay->pitches[0] / 2; overlay->pitches[2] = overlay->pitches[0] / 2; overlay->pixels[1] = overlay->pixels[0] + overlay->pitches[0] * overlay->h; overlay->pixels[2] = overlay->pixels[1] + overlay->pitches[1] * overlay->h / 2; break; default: /* Only one plane, no worries */ break; } return(0); } void DX5_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay) { LPDIRECTDRAWSURFACE3 surface; surface = overlay->hwdata->surface; IDirectDrawSurface3_Unlock(surface, NULL); } int DX5_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *src, SDL_Rect *dst) { HRESULT result; LPDIRECTDRAWSURFACE3 surface; RECT srcrect, dstrect; surface = overlay->hwdata->surface; srcrect.top = src->y; srcrect.bottom = srcrect.top+src->h; srcrect.left = src->x; srcrect.right = srcrect.left+src->w; dstrect.top = SDL_bounds.top+dst->y; dstrect.left = SDL_bounds.left+dst->x; dstrect.bottom = dstrect.top+dst->h; dstrect.right = dstrect.left+dst->w; #ifdef USE_DIRECTX_OVERLAY result = IDirectDrawSurface3_UpdateOverlay(surface, &srcrect, SDL_primary, &dstrect, DDOVER_SHOW, NULL); if ( result != DD_OK ) { SetDDerror("DirectDrawSurface3::UpdateOverlay", result); return(-1); } #else result = IDirectDrawSurface3_Blt(SDL_primary, &dstrect, surface, &srcrect, DDBLT_WAIT, NULL); if ( result != DD_OK ) { SetDDerror("DirectDrawSurface3::Blt", result); return(-1); } #endif return(0); } void DX5_FreeYUVOverlay(_THIS, SDL_Overlay *overlay) { struct private_yuvhwdata *hwdata; hwdata = overlay->hwdata; if ( hwdata ) { if ( hwdata->surface ) { IDirectDrawSurface_Release(hwdata->surface); } SDL_free(hwdata); overlay->hwdata = NULL; } }