/*

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

#include <stdlib.h>

#include <stdio.h>

#include <unistd.h>

#include <string.h>

#include <sys/ioctl.h>

#include "SDL.h"

#include "SDL_error.h"

#include "SDL_timer.h"

#include "SDL_thread.h"

#include "SDL_video.h"

#include "SDL_mouse.h"

#include "SDL_endian.h"

#include "SDL_sysvideo.h"

#include "SDL_pixels_c.h"

#include "SDL_events_c.h"

#include "SDL_ph_video.h"

#include "SDL_ph_modes_c.h"

#include "SDL_ph_image_c.h"

#include "SDL_ph_events_c.h"

#include "SDL_ph_mouse_c.h"

#include "SDL_ph_wm_c.h"

#include "SDL_phyuv_c.h"

#include "blank_cursor.h"

static int ph_VideoInit(_THIS, SDL_PixelFormat *vformat);

static SDL_Surface *ph_SetVideoMode(_THIS, SDL_Surface *current,

int width, int height, int bpp, Uint32 flags);

static int ph_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);

static void ph_VideoQuit(_THIS);

static void ph_DeleteDevice(SDL_VideoDevice *device);

static void ph_GL_SwapBuffers(_THIS);

PdOpenGLContext_t* OGLContext=NULL;

static int ph_Available(void)

{

return 1;

}

static SDL_VideoDevice *ph_CreateDevice(int devindex)

{

SDL_VideoDevice *device;

/* Initialize all variables that we clean on shutdown */

device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));

if ( device ) {

memset(device, 0, (sizeof *device));

device->hidden = (struct SDL_PrivateVideoData *)

malloc((sizeof *device->hidden));

device->gl_data = NULL;

}

if ( (device == NULL) || (device->hidden == NULL) ) {

SDL_OutOfMemory();

ph_DeleteDevice(device);

return(0);

}

memset(device->hidden, 0, (sizeof *device->hidden));

/* Set the driver flags */

device->handles_any_size = 1; //JB not true for fullscreen

/* Set the function pointers */

device->CreateYUVOverlay = ph_CreateYUVOverlay;

device->VideoInit = ph_VideoInit;

device->ListModes = ph_ListModes;

device->SetVideoMode = ph_SetVideoMode;

device->ToggleFullScreen = ph_ToggleFullScreen;

device->UpdateMouse = NULL;

device->SetColors = ph_SetColors;

device->UpdateRects = NULL; //set in ph_ResizeImage

device->VideoQuit = ph_VideoQuit;

device->AllocHWSurface = ph_AllocHWSurface;

device->CheckHWBlit = NULL;

device->FillHWRect = NULL;

device->SetHWColorKey = NULL;

device->SetHWAlpha = NULL;

device->LockHWSurface = ph_LockHWSurface;

device->UnlockHWSurface = ph_UnlockHWSurface;

device->FlipHWSurface = ph_FlipHWSurface;

device->FreeHWSurface = ph_FreeHWSurface;

device->SetCaption = ph_SetCaption;

device->SetIcon = NULL;

device->IconifyWindow = ph_IconifyWindow;

device->GrabInput = NULL;

device->GetWMInfo = NULL;

device->FreeWMCursor = ph_FreeWMCursor;

device->CreateWMCursor = ph_CreateWMCursor;

device->ShowWMCursor = ph_ShowWMCursor;

device->WarpWMCursor = ph_WarpWMCursor;

device->CheckMouseMode = ph_CheckMouseMode;

device->InitOSKeymap = ph_InitOSKeymap;

device->PumpEvents = ph_PumpEvents;

// OpenGL support.

device->GL_LoadLibrary = NULL;

device->GL_GetProcAddress = NULL;

device->GL_GetAttribute = NULL;

device->GL_MakeCurrent = NULL;

device->GL_SwapBuffers = ph_GL_SwapBuffers;

device->free = ph_DeleteDevice;

return device;

}

VideoBootStrap ph_bootstrap = {

"photon", "QNX Photon video output",

ph_Available, ph_CreateDevice

};

static void ph_DeleteDevice(SDL_VideoDevice *device)

{

if ( device ) {

if ( device->hidden ) {

free(device->hidden);

device->hidden = NULL;

}

if ( device->gl_data ) {

free(device->gl_data);

device->gl_data = NULL;

}

free(device);

device = NULL;

}

}

static int ph_VideoInit(_THIS, SDL_PixelFormat *vformat)

{

PtArg_t arg[1];

PhDim_t dim;

PgColor_t ph_palette[_Pg_MAX_PALETTE];

int i;

unsigned long *tempptr;

int rtnval;

// PgDisplaySettings_t mysettings;

PgVideoModeInfo_t my_mode_info;

PgHWCaps_t my_hwcaps;

if( NULL == ( event = malloc( EVENT_SIZE ) ) )

exit( EXIT_FAILURE );

/* Create a widget 'window' to capture events */

dim.w=0; //JB test320;

dim.h=0; //JB test240;

//We need to return BytesPerPixel as it in used by CreateRGBsurface

PtSetArg(&arg[0], Pt_ARG_DIM, &dim,0);

/*

PtSetArg(&arg[1], Pt_ARG_RESIZE_FLAGS, Pt_TRUE, Pt_RESIZE_XY_AS_REQUIRED);

PtSetArg(&arg[2], Pt_ARG_WINDOW_STATE, Pt_TRUE, Ph_WM_STATE_ISFRONT |

Ph_WM_STATE_ISMAX |

Ph_WM_STATE_ISFOCUS);

PtSetArg(&arg[3], Pt_ARG_WINDOW_RENDER_FLAGS,Pt_FALSE,~0);

PtSetArg(&arg[4], Pt_ARG_WINDOW_MANAGED_FLAGS,Pt_TRUE,

Ph_WM_FFRONT |

Ph_WM_CLOSE |

Ph_WM_TOFRONT |

Ph_WM_CONSWITCH);

*/

window=PtAppInit(NULL, NULL, NULL, 1, arg);

if(window == NULL)

{

printf("Photon application init failed, probably Photon is not running.\n");

exit( EXIT_FAILURE );

// PtExit(EXIT_FAILURE); // Got SEGFAULT.

}

//PgSetDrawBufferSize(16 *1024);

PgSetRegion(PtWidgetRid(window));

PgSetClipping(0,NULL);

PtRealizeWidget(window);

/* Get the available video modes */

// if(ph_GetVideoModes(this) < 0)

// return -1;

/* Create the blank cursor */

SDL_BlankCursor = this->CreateWMCursor(this, blank_cdata, blank_cmask,

(int)BLANK_CWIDTH, (int)BLANK_CHEIGHT,

(int)BLANK_CHOTX, (int)BLANK_CHOTY);

if(SDL_BlankCursor == NULL)

printf("could not create blank cursor\n");

/* Get the video mode */

/*

if (PgGetVideoMode( &mysettings ) < 0)

{

fprintf(stderr,"ph_VideoInit: PgGetVideoMode failed patch A?? \n");

//QNX6/Patch A always fails return code even though call succeeds. fixed Patch B

}

*/

if (PgGetGraphicsHWCaps(&my_hwcaps) < 0)

{

fprintf(stderr,"ph_VideoInit: GetGraphicsHWCaps failed!! \n");

//that HAVE to work

}

if (PgGetVideoModeInfo(my_hwcaps.current_video_mode, &my_mode_info) < 0)

{

fprintf(stderr,"ph_VideoInit: PgGetVideoModeInfo failed\n");

}

//We need to return BytesPerPixel as it in used by CreateRGBsurface

vformat->BitsPerPixel = my_mode_info.bits_per_pixel;

vformat->BytesPerPixel = vformat->BitsPerPixel/8;

//return a palette if we are in 256 color mode

if(vformat->BitsPerPixel == 8)

{

vformat->palette = malloc(sizeof(SDL_Palette));

memset(vformat->palette, 0, sizeof(SDL_Palette));

vformat->palette->ncolors = 256;

vformat->palette->colors = (SDL_Color *)malloc(256 *sizeof(SDL_Color));

//fill the palette

rtnval = PgGetPalette(ph_palette);

if(rtnval < 0)

printf("ph_VideoInit: PgGetPalette failed\n");

tempptr = (unsigned long *)vformat->palette->colors;

for(i=0;i<256; i++)

{

*tempptr = (((unsigned long)ph_palette[i]) << 8);

tempptr++;

}

}

currently_fullscreen = 0;

this->info.wm_available = 1;

return 0;

}

static SDL_Surface *ph_SetVideoMode(_THIS, SDL_Surface *current,

int width, int height, int bpp, Uint32 flags)

{

// PhRegion_t region_info;

PgDisplaySettings_t settings;

PgHWCaps_t my_hwcaps;

PgVideoModeInfo_t mode_info;

int mode, actual_width, actual_height;

PtArg_t arg[5];

PhDim_t dim;

int rtnval;

PgColor_t ph_palette[_Pg_MAX_PALETTE];

int i;

unsigned long *tempptr;

uint64_t OGLAttrib[PH_OGL_MAX_ATTRIBS];

actual_width = width;

actual_height = height;

dim.w=width;

dim.h=height;

/* Lock the event thread, in multi-threading environments */

SDL_Lock_EventThread();

/* Initialize the window */

if (flags & SDL_FULLSCREEN) //Direct Context , assume SDL_HWSURFACE also set

{

/*

if (old_video_mode==-1)

{

PgGetGraphicsHWCaps(&graphics_card_caps);

old_video_mode=graphics_card_caps.current_video_mode;

old_refresh_rate=graphics_card_caps.current_rrate;

}

*/

/* Get the video mode and set it */

if (bpp == 0)

{

/*again same issue, same solution

if (PgGetVideoMode( &settings ) < 0)

{

fprintf(stderr,"error: PgGetVideoMode failed\n");

}

*/

if (PgGetGraphicsHWCaps(&my_hwcaps) < 0)

{

fprintf(stderr,"ph_SetVideoMode: GetGraphicsHWCaps failed!! \n");

//that HAVE to work

}

if (PgGetVideoModeInfo(my_hwcaps.current_video_mode, &mode_info) < 0)

{

fprintf(stderr,"ph_SetVideoMode: PgGetVideoModeInfo failed\n");

}

bpp = mode_info.bits_per_pixel;

}

if (flags & SDL_ANYFORMAT)

{

if ((mode = get_mode_any_format(width, height, bpp)) == 0)

{

fprintf(stderr,"error: get_mode_any_format failed\n");

exit(1);

}

}

else

{

if ((mode = get_mode(width, height, bpp)) == 0)

{

fprintf(stderr,"error: get_mode failed\n");

exit(1);

}

}

settings.mode = mode;

settings.refresh = 0;

settings.flags = 0;

if (PgSetVideoMode( &settings ) < 0)

{

fprintf(stderr,"error: PgSetVideoMode failed\n");

}

/* Get the true height and width */

current->flags = (flags|(~SDL_RESIZABLE)); //no resize for Direct Context

/* Begin direct mode */

ph_EnterFullScreen(this);

} //end fullscreen flag

else

{

if (flags & SDL_HWSURFACE) /* Use offscreen memory iff SDL_HWSURFACE flag is set */

{

// Hardware surface is Offsceen Context. ph_ResizeImage handles the switch

current->flags = (flags|(~SDL_RESIZABLE)); //no stretch blit in offscreen context

}

else // must be SDL_SWSURFACE

{

current->flags = (flags|SDL_RESIZABLE); //yes we can resize as this is a software surface

}

if (flags & SDL_OPENGL) // for now support OpenGL in window mode only

{

OGLAttrib[0]=PHOGL_ATTRIB_DEPTH_BITS;

OGLAttrib[1]=bpp;

OGLAttrib[2]=PHOGL_ATTRIB_NONE;

OGLContext=PdCreateOpenGLContext(2, &dim, 0, OGLAttrib);

if (OGLContext==NULL)

{

fprintf(stderr,"error: cannot create OpenGL context\n");

exit(1);

}

PhDCSetCurrent(OGLContext);

}

}

//If we are setting video to use the palette make sure we have allocated memory for it

if(bpp == 8)

{

current->format->palette = malloc(sizeof(SDL_Palette));

memset(current->format->palette, 0, sizeof(SDL_Palette));

current->format->palette->ncolors = 256;

current->format->palette->colors = (SDL_Color *)malloc(256 *sizeof(SDL_Color));

//fill the palette

rtnval = PgGetPalette(ph_palette);

tempptr = (unsigned long *)current->format->palette->colors;

for(i=0;i<256; i++)

{

*tempptr = (((unsigned long)ph_palette[i]) << 8);

tempptr++;

}

}

//Current window dimensions

PtGetResource( window, Pt_ARG_DIM, &dim, 0 );

//If we need to resize the window

if((dim.w != width)||(dim.h != height))

{

dim.w=width;

dim.h=height;

PtSetArg(&arg[0], Pt_ARG_DIM, &dim,0);

PtSetResources( window, 1, arg );

current->w = width;

current->h = height;

current->format->BitsPerPixel = bpp;

current->format->BytesPerPixel = bpp/8;

current->pitch = SDL_CalculatePitch(current);

//Must call at least once it setup image planes

ph_ResizeImage(this, current, flags);

}

SDL_Unlock_EventThread();

/* We're done! */

return(current);

}

static void ph_VideoQuit(_THIS)

{

if(SDL_Image != NULL)

{

ph_DestroyImage(this, SDL_VideoSurface);

}

if (currently_fullscreen)

{

PdDirectStop( directContext );

PdReleaseDirectContext( directContext );

directContext=0;

currently_fullscreen = 0;

}

}

static int ph_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)

{

PgColor_t *in, *out;

int i, j;

int alloct_all = 1;

colors = this->screen->format->palette->colors;

in = alloca( ncolors*sizeof(PgColor_t) );

if ( in == NULL ) {

return 0;

}

memset(in,0,ncolors*sizeof(PgColor_t));

out = alloca( ncolors*sizeof(PgColor_t) );

if ( out == NULL ) {

return 0;

}

for (i=0,j=firstcolor;i<ncolors;i++,j++)

{

in[i] |= colors[j].r<<16 ;

in[i] |= colors[j].g<<8 ;

in[i] |= colors[j].b ;

}

if ( (this->screen->flags & SDL_HWPALETTE) == SDL_HWPALETTE )

{

if( PgSetPalette( in, 0, 0, ncolors, Pg_PALSET_HARD, 0) < 0 )

{

fprintf(stderr,"error: PgSetPalette(..,Pg_PALSET_HARD) failed\n");

return 0;

}

}

else

{

if ( PgColorMatch(ncolors, in, out) < 0 )

{

fprintf(stderr,"error: PgColorMatch failed\n");

return 0;

}

for (i=0;i<ncolors;i++)

{

if (memcmp(&in[i],&out[i],sizeof(PgColor_t)))

{

alloct_all = 0;

break;

}

}

if( PgSetPalette( out, 0, 0, ncolors, Pg_PALSET_SOFT, 0) < 0 )

{

fprintf(stderr,"error: PgSetPalette(..,Pg_PALSET_SOFT) failed\n");

return 0;

}

}

return alloct_all;

}

void ph_GL_SwapBuffers(_THIS)

{

PgSetRegion(PtWidgetRid(window));

PdOpenGLContextSwapBuffers(OGLContext);

}

/*

static int ph_ResizeWindow(_THIS,

SDL_Surface *screen, int w, int h, Uint32 flags)

{

PhWindowEvent_t winevent;

memset( &winevent, 0, sizeof(winevent) );

winevent.event_f = Ph_WM_RESIZE;

winevent.size.w = w;

winevent.size.h = h;

winevent.rid = PtWidgetRid( window );

if (PtForwardWindowEvent( &winevent ) < 0)

{

fprintf(stderr,"error: PtForwardWindowEvent failed.\n");

}

current_w = w;

current_h = h;

return(0);

}

*/