/*    SDL - Simple DirectMedia Layer    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  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*/#ifdef SAVE_RCSIDstatic char rcsid = "@(#) $Id: SDL_phyuv.c,v 1.6 2002/05/28 19:31:32 slouken Exp $";#endif/* This is the QNX Realtime Platform version for SDL YUV video overlays */#include <stdlib.h>#include <string.h>#ifndef bool#define bool char#define TRUE 1#define FALSE 0#endif#include <errno.h>#include <Ph.h>#include <Pt.h>#include "SDL_error.h"#include "SDL_video.h"#include "SDL_phyuv_c.h"#include "SDL_yuvfuncs.h"#if 0  //just for reference/* YUV data formats			FourCC		   Layout		H sample (YUV)	V sample (YUV)	BPP */#define Pg_VIDEO_FORMAT_IYU1		0x31555949	/* U2Y2Y2V2Y2Y2		144		111		12  */#define Pg_VIDEO_FORMAT_IYU2		0x32555949	/* U4Y4V4U4Y4V4		111		111		24  */#define Pg_VIDEO_FORMAT_UYVY		0x59565955	/* U8Y8V8Y8		122		111		16  */#define Pg_VIDEO_FORMAT_YUY2		0x32595559	/* Y8U8Y8V8		122		111		16  */#define Pg_VIDEO_FORMAT_YVYU		0x55595659	/* Y8V8Y8U8		122		111		16  */#define Pg_VIDEO_FORMAT_V422		0x56343232	/* V8Y8U8Y8		122		111		16  */#define Pg_VIDEO_FORMAT_CLJR		0x524a4c43	/* V6U6Y5Y5Y5Y5		133		111		8   */#define Pg_VIDEO_FORMAT_YVU9		0x39555659	/* Planar YVU		144		144		9   */#define Pg_VIDEO_FORMAT_YV12		0x32315659	/* Planar YUV		122		122		12  *//* There seems to be no FourCC that matches this */#define Pg_VIDEO_FORMAT_YUV420		0x00000100	/* Planar YUV		122		111		16  *//* These formats are the same as YV12, except the U and V planes do not have to contiguously follow the Y plane *//* but they're all the same to us, since we always have 3 plane pointers */#define Pg_VIDEO_FORMAT_CLPL	Pg_VIDEO_FORMAT_YV12	/* Cirrus Logic Planar format */#define Pg_VIDEO_FORMAT_VBPL	Pg_VIDEO_FORMAT_YV12	/* VooDoo Banshee planar format */#define SDL_YV12_OVERLAY	0x32315659	/* Planar mode: Y + V + U */#define SDL_IYUV_OVERLAY	0x56555949	/* Planar mode: Y + U + V */#define SDL_YUY2_OVERLAY	0x32595559	/* Packed mode: Y0+U0+Y1+V0 */#define SDL_UYVY_OVERLAY	0x59565955	/* Packed mode: U0+Y0+V0+Y1 */#define SDL_YVYU_OVERLAY	0x55595659	/* Packed mode: Y0+V0+Y1+U0 */#endif #define OVERLAY_STATE_UNINIT  0#define OVERLAY_STATE_ACTIVE 1/* The functions used to manipulate software video overlays */static struct private_yuvhwfuncs ph_yuvfuncs = {	ph_LockYUVOverlay,	ph_UnlockYUVOverlay,	ph_DisplayYUVOverlay,	ph_FreeYUVOverlay};typedef struct {  int id;  int width, height;  int data_size;              /* bytes */  int num_planes;  int *pitches;               /* bytes */  int *offsets;               /* bytes */  char *data;  void *obdata;     } XvImage;struct private_yuvhwdata {	XvImage *image;		FRAMEDATA *CurrentFrameData;	FRAMEDATA *FrameData0;	FRAMEDATA *FrameData1;	PgScalerProps_t	props;	PgScalerCaps_t	caps;	PgVideoChannel_t *channel;	SDL_Rect CurrentWindow;	long format;	int screen_width;	int screen_height ;	int screen_bpp ;    //2	bool planar;	bool scaler_on ;	int current;	long YStride;	long VStride;	long UStride;	long chromakey;	unsigned long State;	long flags;};extern PgVideoChannel_t * PgCreateVideoChannel(unsigned type, unsigned flags);extern int PgGetScalerCapabilities( PgVideoChannel_t *channel, int format_index, PgScalerCaps_t *vcaps );extern int PgConfigScalerChannel(PgVideoChannel_t *channel, PgScalerProps_t *props);extern void PgDestroyVideoChannel(PgVideoChannel_t *channel);extern PgColor_t PgGetOverlayChromaColor(void);voidgrab_ptrs2(PgVideoChannel_t *channel, FRAMEDATA *Frame0, FRAMEDATA *Frame1 ){	/* Buffers have moved; re-obtain the pointers */	Frame0->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane1);	Frame1->Y = (unsigned char *)PdGetOffscreenContextPtr(channel->yplane2);	Frame0->U = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane1);	Frame1->U = (unsigned char *)PdGetOffscreenContextPtr(channel->uplane2);	Frame0->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane1);	Frame1->V = (unsigned char *)PdGetOffscreenContextPtr(channel->vplane2);}SDL_Overlay* ph_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display){	SDL_Overlay *overlay;	struct private_yuvhwdata *hwdata;	int xv_port;	int rtncode;//	PhRect_t rect;//	PhSysInfo_t info;//	PhRegion_t region;//	short x, y;	PtArg_t argt;	int i =0;//	bool bCont = TRUE;	int Priority[20];	int Type[20];	int entries, select, highest;	PhDCSetCurrent(0);  //Need to set draw context to window esp. if we we in Offscreeen mode	/* Create the overlay structure */	overlay = (SDL_Overlay *)malloc(sizeof(SDL_Overlay));        memset(overlay, 0x00, sizeof(SDL_Overlay));	if ( overlay == NULL ) {		SDL_OutOfMemory();		return(NULL);	}	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 = &ph_yuvfuncs;	/* Create the pixel data and lookup tables */	hwdata = (struct private_yuvhwdata *)malloc(sizeof(struct private_yuvhwdata));        memset(hwdata, 0x00, sizeof(struct private_yuvhwdata));	overlay->hwdata = hwdata;	if ( hwdata == NULL ) {		SDL_OutOfMemory();		SDL_FreeYUVOverlay(overlay);		return(NULL);	}	    if (overlay->hwdata->channel == NULL)    {        if ((overlay->hwdata->channel = PgCreateVideoChannel(Pg_VIDEO_CHANNEL_SCALER,0)) == NULL)         {            SDL_SetError("ph_CreateYUVOverlay(): Create channel failed: %s\n", strerror( errno ));            free(overlay->hwdata);            free(overlay);            return (NULL);        }    }    overlay->hwdata->CurrentWindow.x = 0;    overlay->hwdata->CurrentWindow.y = 0;    overlay->hwdata->CurrentWindow.w = 320;    overlay->hwdata->CurrentWindow.h = 240;    overlay->hwdata->State = OVERLAY_STATE_UNINIT;    overlay->hwdata->screen_bpp = 2;    overlay->hwdata->scaler_on = FALSE;    overlay->hwdata->screen_width = 1024;    overlay->hwdata->screen_height  = 768;    overlay->hwdata->FrameData0 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA)));    overlay->hwdata->FrameData1 = (FRAMEDATA *) malloc((size_t)(sizeof(FRAMEDATA)));    memset(overlay->hwdata->FrameData0, 0x00, (size_t)(sizeof(FRAMEDATA)));    memset(overlay->hwdata->FrameData1, 0x00, (size_t)(sizeof(FRAMEDATA)));    overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps);//Note you really don't need to do this for SDL as you are given a format, but this is a good example    xv_port = -1;    i=0;while(PgGetScalerCapabilities(overlay->hwdata->channel, i++, &(overlay->hwdata->caps)) == 0) {		if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_YV12) //in SDL		{						Priority[i-1] = 0;			Type[i-1] = Pg_VIDEO_FORMAT_YV12;			if(format == Pg_VIDEO_FORMAT_YV12)			{				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_YV12;				xv_port = 1; //supported				Priority[i-1] = 100; //force selected			}					}		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_YVU9) //in SDL		{						Priority[i-1] = 0;			Type[i-1] = Pg_VIDEO_FORMAT_YVU9;						if(format == Pg_VIDEO_FORMAT_YVU9)			{				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_YVU9;				xv_port = 1; //supported				Priority[i-1] = 100; //force selected			}					}#if 0 //this part of SDL is YUV specific		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_RGB555)		{						Priority[i-1] = 3;			Type[i-1] = Pg_VIDEO_FORMAT_RGB555;					}		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_RGB565)		{						Priority[i-1] =  2;			Type[i-1] = Pg_VIDEO_FORMAT_RGB565;					}		else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_RGB8888)		{						Priority[i-1] = 1;			Type[i-1] = Pg_VIDEO_FORMAT_RGB8888;					}#endif		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_IYU1)		{						Priority[i-1] = 0;			Type[i-1] = Pg_VIDEO_FORMAT_IYU1;					}		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_IYU2)		{						Priority[i-1] = 0;			Type[i-1] = Pg_VIDEO_FORMAT_IYU2;					}		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_UYVY) //in SDL		{						Priority[i-1] = 7;			Type[i-1] = Pg_VIDEO_FORMAT_UYVY;			if(format == Pg_VIDEO_FORMAT_UYVY)			{				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_UYVY;				xv_port = 1; //supported				Priority[i-1] = 100; //force selected			}					}		else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_YUY2) //in SDL		{						Priority[i-1] = 8;			Type[i-1] = Pg_VIDEO_FORMAT_YUY2;						if(format == Pg_VIDEO_FORMAT_YUY2)			{				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_YUY2;				xv_port = 1; //supported				Priority[i-1] = 100; //force selected			}					}		else if(overlay->hwdata->caps.format  == Pg_VIDEO_FORMAT_YVYU) //in SDL		{						Priority[i-1] = 4;			Type[i-1] = Pg_VIDEO_FORMAT_YVYU;							if(format == Pg_VIDEO_FORMAT_YVYU)			{				overlay->hwdata->props.format =  Pg_VIDEO_FORMAT_YVYU;				xv_port = 1; //supported				Priority[i-1] = 100; //force selected							}