/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997, 1998, 1999, 2000, 2001 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_RCSID

static char rcsid =

"@(#) $Id$";

#endif

/* This is the QNX Realtime Platform version for SDL YUV video overlays */

#include <stdlib.h>

#include <string.h>

//#include <ncurses.h> //only for bool

#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 {

};

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);

void

grab_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 *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 *hwdata);

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("Create channel failed:%s\n", strerror( errno ));

free(overlay->hwdata);

free(overlay);

return(NULL);

}

#if 0

overlay->hwdata->caps.size = sizeof (overlay->hwdata->caps);

PgGetScalerCapabilities(overlay->hwdata->channel, 0, &(overlay->hwdata->caps));

if (overlay->hwdata->caps.flags & Pg_SCALER_CAP_DOUBLE_BUFFER)

overlay->hwdata->props.flags |= Pg_SCALER_PROP_DOUBLE_BUFFER;

#endif

}

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)));

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

}

}

else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_V422)

{

Priority[i-1] = 5;

Type[i-1] = Pg_VIDEO_FORMAT_V422;

}

else if(overlay->hwdata->caps.format == Pg_VIDEO_FORMAT_CLJR)

{

Priority[i-1] = 6;

Type[i-1] = Pg_VIDEO_FORMAT_CLJR;

}

else

{

Priority[i-1] = 0;

}

overlay->hwdata->caps.size = sizeof(overlay->hwdata->caps);

}

if ( xv_port == -1 )

{

SDL_SetError("No available video ports for requested format");

return(NULL);

}

//Pick the highest priority format

entries = i -2;

highest = Priority[0]; //make first entry top at begining

select = 0;

for (i = 1; i < entries; i++)

{

if(Priority[i] > highest)

{

highest = Priority[i];

select = i;

}

}

overlay->hwdata->caps.size = sizeof (overlay->hwdata->caps );

PgGetScalerCapabilities(overlay->hwdata->channel, select, &(overlay->hwdata->caps));

overlay->hwdata->props.format = overlay->hwdata->caps.format ;

overlay->hwdata->format = overlay->hwdata->props.format; //to make easier for apps to use

overlay->hwdata->props.size = sizeof (overlay->hwdata->props);

overlay->hwdata->props.src_dim.w = width;

overlay->hwdata->props.src_dim.h = height;

overlay->hwdata->chromakey = PgGetOverlayChromaColor();

// Set chromakey in video widget so we can see overlay data

/* I don't know where the container widget is!!!, I guess it is in hidden->window*/

PtEnter(0);

PtSetArg( &argt, Pt_ARG_FILL_COLOR, overlay->hwdata->chromakey, 0 );

PtSetResources( window, 1, &argt );

PtLeave(0);

fflush( stderr );

overlay->hwdata->props.viewport.ul.x = overlay->hwdata->CurrentWindow.x;

overlay->hwdata->props.viewport.ul.y = overlay->hwdata->CurrentWindow.y;

//Next line MIGHT have x and y reversed!!!!!!!!!!!!

overlay->hwdata->props.viewport.lr.x = overlay->hwdata->CurrentWindow.x +overlay->hwdata->CurrentWindow.w;

overlay->hwdata->props.viewport.lr.y = overlay->hwdata->CurrentWindow.y + overlay->hwdata->CurrentWindow.h;

overlay->hwdata->props.flags =

~Pg_SCALER_PROP_SCALER_ENABLE | Pg_SCALER_PROP_DOUBLE_BUFFER ;

if (overlay->hwdata->chromakey) {

overlay->hwdata->props.flags |= Pg_SCALER_PROP_CHROMA_ENABLE;

overlay->hwdata->props.color_key = overlay->hwdata->chromakey;

overlay->hwdata->props.color_key_mask = 0xffffff;

}

else

{

overlay->hwdata->props.flags &= ~Pg_SCALER_PROP_CHROMA_ENABLE;

}

overlay->hwdata->scaler_on = FALSE;

rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));

switch(rtncode)

{

case -1:

SDL_SetError("PgConfigScalerChannel failed\n");

SDL_FreeYUVOverlay(overlay);

return(NULL);

break;

case 1:

grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);

break;

case 0:

default:

break;

}

grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);

if(overlay->hwdata->channel->yplane1 != NULL)

overlay->hwdata->YStride = overlay->hwdata->channel->yplane1->pitch;

if(overlay->hwdata->channel->uplane1 != NULL)

overlay->hwdata->UStride = overlay->hwdata->channel->uplane1->pitch;

if(overlay->hwdata->channel->vplane1 != NULL)

overlay->hwdata->VStride = overlay->hwdata->channel->vplane1->pitch;

overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel);

if (overlay->hwdata->current == -1)

{

SDL_SetError("PgNextFrame failed, bailing out\n");

SDL_FreeYUVOverlay(overlay);

return(NULL);

}

//set current frame for double buffering

if(overlay->hwdata->current == 0)

{

overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;

}

else

{

overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1;

}

overlay->hwdata->State = OVERLAY_STATE_ACTIVE;

/* We're all done.. */

return(overlay);

}

int ph_LockYUVOverlay(_THIS, SDL_Overlay *overlay)

{

//int rtncode;

if(overlay == NULL)

return 0;

//set current frame for double buffering

if(overlay->hwdata->current == 0)

{

overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData0;

}

else

{

overlay->hwdata->CurrentFrameData = overlay->hwdata->FrameData1;

}

//Lock gets the pointer and passes it to the app. The app writes all yuv data into overlay->pixels

//Note this is defined as Uint8 **pixels; /* Read-write */

overlay->pixels = &overlay->hwdata->CurrentFrameData->Y;

overlay->pitches = &overlay->hwdata->YStride;

return(0);

}

void ph_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay)

{

int rtncode;

if(overlay == NULL)

return ;

if(overlay->hwdata->scaler_on == FALSE)

{

overlay->hwdata->props.flags |= Pg_SCALER_PROP_SCALER_ENABLE;

rtncode =PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));

switch(rtncode)

{

case -1:

SDL_SetError("PgConfigScalerChannel failed\n");

SDL_FreeYUVOverlay(overlay);

break;

case 1:

grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);

overlay->hwdata->scaler_on = TRUE;

break;

case 0:

default:

overlay->hwdata->scaler_on = TRUE;

break;

}

//This would be the best place to draw chromakey but we do not have a SDL_Surface in the args

//This means we might see a chromakey flicker at startup

}

overlay->hwdata->current = PgNextVideoFrame(overlay->hwdata->channel);

if (overlay->hwdata->current == -1) {

SDL_SetError("PgNextVideoFrame failed\n");

SDL_FreeYUVOverlay(overlay);

return;

}

overlay->pixels = NULL;

}

int ph_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *dstrect)

{

int rtncode;

if(overlay == NULL)

return 0;

/*SDL_Rect CurrentWindow*/

//If CurrentWindow has change, move the viewport

if((overlay->hwdata->CurrentWindow.x != dstrect->x) ||

(overlay->hwdata->CurrentWindow.y != dstrect->y) ||

(overlay->hwdata->CurrentWindow.w != dstrect->w) ||

(overlay->hwdata->CurrentWindow.h != dstrect->h))

{

if(overlay->hwdata->State == OVERLAY_STATE_UNINIT)

return -1;

overlay->hwdata->CurrentWindow.x = dstrect->x;

overlay->hwdata->CurrentWindow.y = dstrect->y;

overlay->hwdata->CurrentWindow.w = dstrect->w;

overlay->hwdata->CurrentWindow.h = dstrect->h;

overlay->hwdata->props.viewport.ul.x = overlay->hwdata->CurrentWindow.x;

overlay->hwdata->props.viewport.ul.y = overlay->hwdata->CurrentWindow.y;

//Next line MIGHT have x and y reversed!!!!!!!!!!!!

overlay->hwdata->props.viewport.lr.x = overlay->hwdata->CurrentWindow.x +overlay->hwdata->CurrentWindow.w;

overlay->hwdata->props.viewport.lr.y = overlay->hwdata->CurrentWindow.y + overlay->hwdata->CurrentWindow.h;

rtncode = PgConfigScalerChannel(overlay->hwdata->channel, &(overlay->hwdata->props));

switch(rtncode)

{

case -1:

SDL_SetError("PgConfigScalerChannel failed\n");

SDL_FreeYUVOverlay(overlay);

return(0);

break;

case 1:

grab_ptrs2(overlay->hwdata->channel, overlay->hwdata->FrameData0, overlay->hwdata->FrameData1);

break;

case 0:

default:

break;

}

}

//JB the X11 file did this. We do this in SDL_unlock, we need to confirm that lock and unlock are called for each frame!

// XvShmPutImage(GFX_Display, hwdata->port, SDL_Window, SDL_GC,

// hwdata->image, 0, 0, overlay->w, overlay->h,

// dstrect->x, dstrect->y, dstrect->w, dstrect->h, False);

/* This is what this call is

int XvShmPutImage (

Display *dpy,

XvPortID port,

Drawable d,

GC gc,

XvImage *image,

int src_x,

int src_y,

unsigned int src_w,

unsigned int src_h,

int dest_x,

int dest_y,

unsigned int dest_w,

unsigned int dest_h,

Bool send_event

)

*/

return(0);

}

void ph_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)

{

//struct private_yuvhwdata *hwdata;

if(overlay == NULL)

return;

if(overlay->hwdata == NULL)

return;

overlay->hwdata->State = OVERLAY_STATE_UNINIT;

if( overlay->hwdata->channel == NULL )

{

return;

}

PgDestroyVideoChannel(overlay->hwdata->channel);

overlay->hwdata->channel = NULL;

overlay->hwdata->CurrentFrameData = NULL;

free(overlay->hwdata->FrameData0);

free(overlay->hwdata->FrameData1);

overlay->hwdata->FrameData0 = NULL;

overlay->hwdata->FrameData1 = NULL;

free(overlay->hwdata);

}