src/video/photon/SDL_ph_video.c
author Sam Lantinga <slouken@libsdl.org>
Fri, 18 Jan 2002 18:14:03 +0000
changeset 266 c6abdda2f666
parent 252 e8157fcb3114
child 279 04351f59b051
permissions -rw-r--r--
Added QNX cleanups by Mike Gorchak (thanks!)
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Library General Public
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    License as published by the Free Software Foundation; either
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    version 2 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Library General Public License for more details.
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    You should have received a copy of the GNU Library General Public
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    License along with this library; if not, write to the Free
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#ifdef SAVE_RCSID
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static char rcsid =
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 "@(#) $Id$";
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include "SDL.h"
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#include "SDL_error.h"
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#include "SDL_timer.h"
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#include "SDL_thread.h"
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#include "SDL_video.h"
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#include "SDL_mouse.h"
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#include "SDL_endian.h"
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#include "SDL_sysvideo.h"
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#include "SDL_pixels_c.h"
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#include "SDL_events_c.h"
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#include "SDL_ph_video.h"
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#include "SDL_ph_modes_c.h"
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#include "SDL_ph_image_c.h"
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#include "SDL_ph_events_c.h"
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#include "SDL_ph_mouse_c.h"
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#include "SDL_ph_wm_c.h"
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#include "SDL_phyuv_c.h"
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#include "blank_cursor.h"
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static int ph_VideoInit(_THIS, SDL_PixelFormat *vformat);
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static SDL_Surface *ph_SetVideoMode(_THIS, SDL_Surface *current,
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                int width, int height, int bpp, Uint32 flags);
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static int ph_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
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static void ph_VideoQuit(_THIS);
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static void ph_DeleteDevice(SDL_VideoDevice *device);
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static void ph_GL_SwapBuffers(_THIS);
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PdOpenGLContext_t* OGLContext=NULL;
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static int ph_Available(void)
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{
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        return 1;
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}
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static SDL_VideoDevice *ph_CreateDevice(int devindex)
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{
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    SDL_VideoDevice *device;
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    /* Initialize all variables that we clean on shutdown */
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    device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));
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    if ( device ) {
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        memset(device, 0, (sizeof *device));
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        device->hidden = (struct SDL_PrivateVideoData *)
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                malloc((sizeof *device->hidden));
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        device->gl_data = NULL;
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    }
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    if ( (device == NULL) || (device->hidden == NULL) ) {
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        SDL_OutOfMemory();
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        ph_DeleteDevice(device);
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        return(0);
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    }
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    memset(device->hidden, 0, (sizeof *device->hidden));
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    /* Set the driver flags */
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    device->handles_any_size = 1; //JB not true for fullscreen
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    /* Set the function pointers */
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    device->CreateYUVOverlay = ph_CreateYUVOverlay;
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    device->VideoInit = ph_VideoInit;
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    device->ListModes = ph_ListModes;
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    device->SetVideoMode = ph_SetVideoMode;
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    device->ToggleFullScreen =  ph_ToggleFullScreen;
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    device->UpdateMouse = NULL;	
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    device->SetColors = ph_SetColors;
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    device->UpdateRects =  NULL; //set in ph_ResizeImage
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    device->VideoQuit = ph_VideoQuit;
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    device->AllocHWSurface = ph_AllocHWSurface;
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    device->CheckHWBlit = NULL;
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    device->FillHWRect = NULL;
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    device->SetHWColorKey = NULL;
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    device->SetHWAlpha = NULL;
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    device->LockHWSurface = ph_LockHWSurface;
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    device->UnlockHWSurface = ph_UnlockHWSurface;
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    device->FlipHWSurface = ph_FlipHWSurface;
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    device->FreeHWSurface = ph_FreeHWSurface;
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    device->SetCaption = ph_SetCaption;
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    device->SetIcon = NULL;
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    device->IconifyWindow = ph_IconifyWindow;
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    device->GrabInput = NULL;
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    device->GetWMInfo = NULL;
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    device->FreeWMCursor = ph_FreeWMCursor;
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    device->CreateWMCursor = ph_CreateWMCursor;
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    device->ShowWMCursor = ph_ShowWMCursor;
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    device->WarpWMCursor = ph_WarpWMCursor;
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    device->CheckMouseMode = ph_CheckMouseMode;
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    device->InitOSKeymap = ph_InitOSKeymap;
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    device->PumpEvents = ph_PumpEvents;
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    // OpenGL support.
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    device->GL_LoadLibrary = NULL;
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    device->GL_GetProcAddress = NULL;
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    device->GL_GetAttribute = NULL;
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    device->GL_MakeCurrent = NULL;
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    device->GL_SwapBuffers = ph_GL_SwapBuffers;
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    device->free = ph_DeleteDevice;
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    return device;
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}
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VideoBootStrap ph_bootstrap = {
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        "photon", "QNX Photon video output",
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	ph_Available, ph_CreateDevice
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};
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static void ph_DeleteDevice(SDL_VideoDevice *device)
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{
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    if ( device ) {
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        if ( device->hidden ) {
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            free(device->hidden);
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            device->hidden = NULL;
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        }
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        if ( device->gl_data ) {
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            free(device->gl_data);
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            device->gl_data = NULL;
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        }
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        free(device);
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        device = NULL;
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    }
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}
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static int ph_VideoInit(_THIS, SDL_PixelFormat *vformat)
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{
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	PtArg_t arg[1];
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	PhDim_t dim;
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	PgColor_t ph_palette[_Pg_MAX_PALETTE];
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	int i;
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	unsigned long *tempptr;
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	int rtnval;
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//	PgDisplaySettings_t mysettings;
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	PgVideoModeInfo_t my_mode_info;
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	PgHWCaps_t my_hwcaps;
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	if( NULL == ( event = malloc( EVENT_SIZE ) ) )
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	   exit( EXIT_FAILURE );
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	/* Create a widget 'window' to capture events */
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    dim.w=0; //JB test320;
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    dim.h=0; //JB test240;
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    //We need to return BytesPerPixel as it in used by CreateRGBsurface
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    PtSetArg(&arg[0], Pt_ARG_DIM, &dim,0);
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/*    
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    PtSetArg(&arg[1], Pt_ARG_RESIZE_FLAGS, Pt_TRUE, Pt_RESIZE_XY_AS_REQUIRED);
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    PtSetArg(&arg[2], Pt_ARG_WINDOW_STATE, Pt_TRUE, Ph_WM_STATE_ISFRONT |
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                        Ph_WM_STATE_ISMAX |
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                        Ph_WM_STATE_ISFOCUS);
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    PtSetArg(&arg[3], Pt_ARG_WINDOW_RENDER_FLAGS,Pt_FALSE,~0);
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    PtSetArg(&arg[4], Pt_ARG_WINDOW_MANAGED_FLAGS,Pt_TRUE,
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                        Ph_WM_FFRONT |
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                        Ph_WM_CLOSE |
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                        Ph_WM_TOFRONT |
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                        Ph_WM_CONSWITCH);
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*/    
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	window=PtAppInit(NULL, NULL, NULL, 1, arg);
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  	if(window == NULL)
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  	{
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  		printf("Photon application init failed, probably Photon is not running.\n");
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        	exit( EXIT_FAILURE );
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//        PtExit(EXIT_FAILURE);         // Got SEGFAULT.
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  	}
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	//PgSetDrawBufferSize(16 *1024);
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	PgSetRegion(PtWidgetRid(window));
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	PgSetClipping(0,NULL);
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	PtRealizeWidget(window);
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    /* Get the available video modes */
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//    if(ph_GetVideoModes(this) < 0)
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//        return -1;
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	/* Create the blank cursor */
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	SDL_BlankCursor = this->CreateWMCursor(this, blank_cdata, blank_cmask,
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                (int)BLANK_CWIDTH, (int)BLANK_CHEIGHT,
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                   (int)BLANK_CHOTX, (int)BLANK_CHOTY);
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	if(SDL_BlankCursor == NULL)
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	  printf("could not create blank cursor\n");
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     /* Get the video mode */
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     /*    
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         if (PgGetVideoMode( &mysettings ) < 0)
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            {
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                fprintf(stderr,"ph_VideoInit:  PgGetVideoMode failed patch A?? \n");
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      			//QNX6/Patch A always fails return code even though call succeeds. fixed Patch B
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            }
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       */
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         if (PgGetGraphicsHWCaps(&my_hwcaps) < 0)
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         {
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                fprintf(stderr,"ph_VideoInit:  GetGraphicsHWCaps failed!! \n");
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      			//that HAVE to work
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         }
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         if (PgGetVideoModeInfo(my_hwcaps.current_video_mode, &my_mode_info) < 0)
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         {
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                fprintf(stderr,"ph_VideoInit:  PgGetVideoModeInfo failed\n");
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         }
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       //We need to return BytesPerPixel as it in used by CreateRGBsurface
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       vformat->BitsPerPixel = my_mode_info.bits_per_pixel;
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       vformat->BytesPerPixel = vformat->BitsPerPixel/8;
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       //return a palette if we are in 256 color mode           
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		if(vformat->BitsPerPixel == 8)
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		{
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			vformat->palette = malloc(sizeof(SDL_Palette));
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			memset(vformat->palette, 0, sizeof(SDL_Palette));
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			vformat->palette->ncolors = 256;
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			vformat->palette->colors = (SDL_Color *)malloc(256 *sizeof(SDL_Color));
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			//fill the palette
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			rtnval = PgGetPalette(ph_palette);
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			if(rtnval < 0)
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			   printf("ph_VideoInit:  PgGetPalette failed\n");
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       	tempptr = (unsigned long *)vformat->palette->colors;
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			for(i=0;i<256; i++)
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			{
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  				*tempptr = (((unsigned long)ph_palette[i]) << 8);
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  				tempptr++;
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			}		
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		}
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    currently_fullscreen = 0;
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    this->info.wm_available = 1;
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    return 0;
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}
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static SDL_Surface *ph_SetVideoMode(_THIS, SDL_Surface *current,
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                int width, int height, int bpp, Uint32 flags)
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{
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//    PhRegion_t region_info;
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    PgDisplaySettings_t settings;
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    PgHWCaps_t my_hwcaps;
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    PgVideoModeInfo_t mode_info;
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    int mode, actual_width, actual_height;
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    PtArg_t arg[5];
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    PhDim_t dim;	
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    int rtnval;
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    PgColor_t ph_palette[_Pg_MAX_PALETTE];
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    int i;
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    unsigned long *tempptr;
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    uint64_t OGLAttrib[PH_OGL_MAX_ATTRIBS];
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    actual_width = width;
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    actual_height = height;
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    dim.w=width;
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    dim.h=height;
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    /* Lock the event thread, in multi-threading environments */
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    SDL_Lock_EventThread();
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     /* Initialize the window */
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    if (flags & SDL_FULLSCREEN) //Direct Context , assume SDL_HWSURFACE also set
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    {
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/*  
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	if (old_video_mode==-1)
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	{
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		PgGetGraphicsHWCaps(&graphics_card_caps);
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		old_video_mode=graphics_card_caps.current_video_mode;
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		old_refresh_rate=graphics_card_caps.current_rrate;
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	}
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*/    	
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        /* Get the video mode and set it */
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        if (bpp == 0)
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        {
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            /*again same issue, same solution
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            if (PgGetVideoMode( &settings ) < 0)
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            {
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                fprintf(stderr,"error: PgGetVideoMode failed\n");
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            }
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            */
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           if (PgGetGraphicsHWCaps(&my_hwcaps) < 0)
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           {
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                   fprintf(stderr,"ph_SetVideoMode:  GetGraphicsHWCaps failed!! \n");
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      	           //that HAVE to work
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           }
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           if (PgGetVideoModeInfo(my_hwcaps.current_video_mode, &mode_info) < 0)
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           {
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               fprintf(stderr,"ph_SetVideoMode:  PgGetVideoModeInfo failed\n");
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           }
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           bpp = mode_info.bits_per_pixel;
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        }
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        if (flags & SDL_ANYFORMAT)
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        {
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            if ((mode = get_mode_any_format(width, height, bpp)) == 0)
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            {
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                fprintf(stderr,"error: get_mode_any_format failed\n");
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                exit(1);
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            }
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        }
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        else
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        {
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            if ((mode = get_mode(width, height, bpp)) == 0)
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            {
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                 	fprintf(stderr,"error: get_mode failed\n");
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                	exit(1);
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            }
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        }
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        settings.mode = mode;
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        settings.refresh = 0;
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        settings.flags  = 0;       
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        if (PgSetVideoMode( &settings ) < 0)
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        {
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            fprintf(stderr,"error: PgSetVideoMode failed\n");
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        }
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		/* Get the true height and width */
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      current->flags = (flags|(~SDL_RESIZABLE)); //no resize for Direct Context
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		 /* Begin direct mode */
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		 ph_EnterFullScreen(this);
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    } //end fullscreen flag
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    else
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    {
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       if (flags & SDL_HWSURFACE)  /* Use offscreen memory iff SDL_HWSURFACE flag is set */
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       {
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         // Hardware surface is Offsceen Context.  ph_ResizeImage handles the switch
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   372
         current->flags = (flags|(~SDL_RESIZABLE)); //no stretch blit in offscreen context
slouken@266
   373
       }
slouken@266
   374
       else // must be SDL_SWSURFACE
slouken@266
   375
       {
slouken@266
   376
          current->flags = (flags|SDL_RESIZABLE); //yes we can resize as this is a software surface
slouken@266
   377
       }
slouken@266
   378
       
slouken@266
   379
       if (flags & SDL_OPENGL) // for now support OpenGL in window mode only
slouken@266
   380
       {
slouken@266
   381
          OGLAttrib[0]=PHOGL_ATTRIB_DEPTH_BITS;
slouken@266
   382
          OGLAttrib[1]=bpp;
slouken@266
   383
          OGLAttrib[2]=PHOGL_ATTRIB_NONE;
slouken@266
   384
          OGLContext=PdCreateOpenGLContext(2, &dim, 0, OGLAttrib);
slouken@266
   385
          if (OGLContext==NULL)
slouken@266
   386
          {
slouken@266
   387
             fprintf(stderr,"error: cannot create OpenGL context\n");
slouken@266
   388
             exit(1);
slouken@266
   389
          }
slouken@266
   390
          PhDCSetCurrent(OGLContext);
slouken@266
   391
       }
slouken@266
   392
       
slouken@0
   393
    }
slouken@0
   394
slouken@0
   395
	//If we are setting video to use the palette make sure we have allocated memory for it
slouken@0
   396
	if(bpp == 8)
slouken@0
   397
	{
slouken@0
   398
		current->format->palette = malloc(sizeof(SDL_Palette));
slouken@0
   399
		memset(current->format->palette, 0, sizeof(SDL_Palette));
slouken@0
   400
		current->format->palette->ncolors = 256;
slouken@0
   401
		current->format->palette->colors = (SDL_Color *)malloc(256 *sizeof(SDL_Color));
slouken@0
   402
		//fill the palette
slouken@0
   403
		rtnval = PgGetPalette(ph_palette);
slouken@0
   404
slouken@266
   405
                tempptr = (unsigned long *)current->format->palette->colors;
slouken@0
   406
slouken@0
   407
		for(i=0;i<256; i++)
slouken@0
   408
		{
slouken@0
   409
  			*tempptr = (((unsigned long)ph_palette[i]) << 8);
slouken@0
   410
  			tempptr++;
slouken@0
   411
slouken@0
   412
		}
slouken@0
   413
	}
slouken@0
   414
slouken@0
   415
slouken@0
   416
	//Current window dimensions
slouken@0
   417
	PtGetResource( window, Pt_ARG_DIM, &dim, 0 );
slouken@0
   418
	
slouken@0
   419
	//If we need to resize the window
slouken@0
   420
	if((dim.w != width)||(dim.h != height))
slouken@0
   421
	{
slouken@0
   422
	    dim.w=width;
slouken@266
   423
	    dim.h=height; 
slouken@266
   424
	    PtSetArg(&arg[0], Pt_ARG_DIM, &dim,0);
slouken@266
   425
	    PtSetResources( window, 1, arg ); 	
slouken@266
   426
            current->w = width;
slouken@266
   427
            current->h = height;
slouken@266
   428
            current->format->BitsPerPixel = bpp;
slouken@266
   429
            current->format->BytesPerPixel = bpp/8;
slouken@266
   430
            current->pitch = SDL_CalculatePitch(current);
slouken@266
   431
            //Must call at least once it setup image planes 
slouken@266
   432
            ph_ResizeImage(this, current, flags);
slouken@266
   433
        }
slouken@0
   434
slouken@0
   435
slouken@0
   436
    SDL_Unlock_EventThread();
slouken@0
   437
slouken@0
   438
    /* We're done! */
slouken@0
   439
    return(current);
slouken@0
   440
}
slouken@0
   441
slouken@0
   442
static void ph_VideoQuit(_THIS)
slouken@0
   443
{
slouken@0
   444
		
slouken@0
   445
	if(SDL_Image != NULL)
slouken@0
   446
	{
slouken@266
   447
  	    ph_DestroyImage(this, SDL_VideoSurface); 
slouken@0
   448
	}
slouken@0
   449
slouken@0
   450
	if (currently_fullscreen)
slouken@0
   451
	{
slouken@0
   452
		PdDirectStop( directContext );
slouken@0
   453
		PdReleaseDirectContext( directContext );
slouken@0
   454
		directContext=0;	
slouken@0
   455
		currently_fullscreen = 0;
slouken@0
   456
	}
slouken@0
   457
	
slouken@0
   458
}
slouken@0
   459
slouken@0
   460
slouken@0
   461
static int ph_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
slouken@0
   462
{
slouken@0
   463
	PgColor_t *in, *out;
slouken@0
   464
	int i, j;
slouken@0
   465
	int alloct_all = 1;
slouken@0
   466
slouken@0
   467
    	colors = this->screen->format->palette->colors;
slouken@0
   468
slouken@0
   469
	in = alloca( ncolors*sizeof(PgColor_t)  );
slouken@0
   470
	if ( in == NULL  ) {
slouken@0
   471
		return 0;
slouken@0
   472
	}
slouken@0
   473
	memset(in,0,ncolors*sizeof(PgColor_t));
slouken@0
   474
slouken@0
   475
    out = alloca( ncolors*sizeof(PgColor_t)  );
slouken@0
   476
    if ( out == NULL  ) {
slouken@0
   477
		return 0;
slouken@0
   478
    }
slouken@0
   479
	
slouken@0
   480
	for (i=0,j=firstcolor;i<ncolors;i++,j++)
slouken@0
   481
	{
slouken@0
   482
		in[i] |= colors[j].r<<16 ;
slouken@0
   483
		in[i] |= colors[j].g<<8 ;
slouken@0
   484
		in[i] |= colors[j].b ; 
slouken@0
   485
	}
slouken@0
   486
slouken@0
   487
	if ( (this->screen->flags & SDL_HWPALETTE) == SDL_HWPALETTE ) 
slouken@0
   488
	{
slouken@0
   489
		if( PgSetPalette( in, 0, 0, ncolors, Pg_PALSET_HARD, 0) < 0 )
slouken@0
   490
		{
slouken@0
   491
			fprintf(stderr,"error: PgSetPalette(..,Pg_PALSET_HARD)  failed\n");
slouken@0
   492
			return 0;
slouken@0
   493
		}  
slouken@0
   494
	}
slouken@0
   495
	else 
slouken@0
   496
	{
slouken@0
   497
		if ( PgColorMatch(ncolors, in, out) < 0 )
slouken@0
   498
        {
slouken@0
   499
            fprintf(stderr,"error: PgColorMatch failed\n");
slouken@0
   500
            return 0;
slouken@0
   501
        }
slouken@0
   502
		for (i=0;i<ncolors;i++)
slouken@0
   503
		{
slouken@0
   504
			if (memcmp(&in[i],&out[i],sizeof(PgColor_t)))
slouken@0
   505
			{
slouken@0
   506
				alloct_all = 0;
slouken@0
   507
				break;
slouken@0
   508
			}
slouken@0
   509
		}
slouken@0
   510
        if( PgSetPalette( out, 0, 0, ncolors, Pg_PALSET_SOFT, 0) < 0 )
slouken@0
   511
        {
slouken@0
   512
            fprintf(stderr,"error: PgSetPalette(..,Pg_PALSET_SOFT) failed\n");
slouken@0
   513
            return 0;
slouken@0
   514
        }
slouken@0
   515
	}
slouken@0
   516
	return alloct_all;
slouken@0
   517
}
slouken@0
   518
slouken@266
   519
void ph_GL_SwapBuffers(_THIS)
slouken@266
   520
{
slouken@266
   521
   PgSetRegion(PtWidgetRid(window));
slouken@266
   522
   PdOpenGLContextSwapBuffers(OGLContext);
slouken@266
   523
}
slouken@266
   524
slouken@266
   525
/*
slouken@0
   526
static int ph_ResizeWindow(_THIS,
slouken@0
   527
            SDL_Surface *screen, int w, int h, Uint32 flags)
slouken@0
   528
{
slouken@0
   529
	PhWindowEvent_t winevent;
slouken@0
   530
slouken@0
   531
	memset( &winevent, 0, sizeof(winevent) ); 
slouken@0
   532
	winevent.event_f = Ph_WM_RESIZE;
slouken@0
   533
	winevent.size.w = w;
slouken@0
   534
	winevent.size.h = h;
slouken@0
   535
	winevent.rid = PtWidgetRid( window );
slouken@0
   536
	if (PtForwardWindowEvent( &winevent ) < 0)
slouken@0
   537
	{
slouken@0
   538
		fprintf(stderr,"error: PtForwardWindowEvent failed.\n");
slouken@0
   539
	}
slouken@0
   540
	current_w = w;
slouken@0
   541
	current_h = h;
slouken@0
   542
    return(0);
slouken@0
   543
}
slouken@266
   544
*/