ddraw.h

linux下实现视频播放的播放器

/*
 *  Copyright (C) 2005-2007  gulikoza
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/* $Id$ */

#ifndef DDRAW_H
#define DDRAW_H

#define MODULE "DDraw"

#if (HAVE_DDRAW_H)
#include <ddraw.h>

struct private_hwdata {
    LPDIRECTDRAWSURFACE3 dd_surface;
    LPDIRECTDRAWSURFACE3 dd_writebuf;
};

struct private_yuvhwdata {
    LPDIRECTDRAWSURFACE3 surface;
    Uint16 pitches[3];
    Uint8 *planes[3];
};

class DDraw : public Output {
private:
    char deint;
    Overlay * overlay;

protected:

public:

    DDraw():overlay(NULL) { ERROR_MSG("Created " MODULE " object"); }
    ~DDraw() { Free(); ERROR_MSG("Destroyed " MODULE " object"); }

    int Create(int w, int h, Uint32 f, SDL_Surface * s) {

	width = w; height = h;
	format = f; surface = s;

	h = h>>half;

	if(!(surface->flags&SDL_HWSURFACE)) {
	    ERROR_MSG("Failed to create ddraw surface, back to normal overlay");
	}

	overlay = new Overlay();
	overlay->SetDeinterlace(deint);
	return (overlay->Create(w, h, f, s));
    }

    void Free(void) {
	LOG_MSG("Freeing video surface");
	if(overlay) delete overlay; overlay = NULL;
    }

    void SetDeinterlace(char d) {
	deint = d;
	if(overlay) overlay->SetDeinterlace(d);
    }

    int CopyData(struct Buffer * buffer) {
	if(overlay) return overlay->CopyData(buffer);
	return -1;
    }

    int SwapBuffers(SDL_Rect * clip) {
	int ret;
	RECT rect;
	SDL_Overlay * ovl;

	rect.top = clip->y;
	rect.left = clip->x;
	rect.right = clip->w + clip->x;
	rect.bottom = clip->h + clip->y;

	if(overlay) {

	    if(!(surface->flags&SDL_HWSURFACE)) {
		return overlay->SwapBuffers(clip);
	    }

	    if((ovl=overlay->GetSurface()) == NULL) return -1;

	    ret = IDirectDrawSurface3_Blt(surface->hwdata->dd_writebuf, &rect,
			ovl->hwdata->surface, NULL, DDBLT_WAIT, NULL);

	    switch (ret) {
		case DD_OK:
		break;
		case DDERR_SURFACELOST:
		    IDirectDrawSurface3_Restore(ovl->hwdata->surface);
		    IDirectDrawSurface3_Restore(surface->hwdata->dd_surface);
		break;
		default:
		    LOG_MSG("Failed to blit, error %X", ret);
	    }
	    SDL_Flip(surface);
	    return 0;
	}
	return -1;
    }
};

#endif	// HAVE_DDRAW_H

#undef MODULE

#endif // DDRAW_H