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SDL_ph_video.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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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
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slouken@libsdl.org
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*/
#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"
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#include "SDL_ph_wm_c.h"
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#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);
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#ifdef HAVE_OPENGL
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static void ph_GL_SwapBuffers(_THIS);
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static int ph_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);
#endif /* HAVE_OPENGL */
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#ifdef HAVE_OPENGL
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PdOpenGLContext_t* OGLContext=NULL;
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#endif /* HAVE_OPENGL */
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static int ph_Available(void)
{
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return 1;
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}
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 */
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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;
device->ListModes = ph_ListModes;
device->SetVideoMode = ph_SetVideoMode;
device->ToggleFullScreen = ph_ToggleFullScreen;
device->UpdateMouse = NULL;
device->SetColors = ph_SetColors;
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device->UpdateRects = NULL; /* ph_ResizeImage; */
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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;
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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 = ph_GrabInput;
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device->GetWMInfo = ph_GetWMInfo;
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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;
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/* OpenGL support. */
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device->GL_LoadLibrary = NULL;
device->GL_GetProcAddress = NULL;
device->GL_MakeCurrent = NULL;
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#ifdef HAVE_OPENGL
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device->GL_SwapBuffers = ph_GL_SwapBuffers;
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device->GL_GetAttribute = ph_GL_GetAttribute;
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#else
device->GL_SwapBuffers = NULL;
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device->GL_GetAttribute = NULL;
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#endif /* HAVE_OPENGL */
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device->free = ph_DeleteDevice;
return device;
}
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VideoBootStrap ph_bootstrap = {
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"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];
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PhDim_t dim;
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PgColor_t ph_palette[_Pg_MAX_PALETTE];
int i;
unsigned long *tempptr;
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 ) ) )
exit( EXIT_FAILURE );
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/* 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)
{
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printf("Photon application init failed, probably Photon is not running.\n");
exit( EXIT_FAILURE );
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}
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//PgSetDrawBufferSize(16 *1024);
PgSetRegion(PtWidgetRid(window));
PgSetClipping(0,NULL);
PtRealizeWidget(window);
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/* 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");
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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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}
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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
vformat->BitsPerPixel = my_mode_info.bits_per_pixel;
vformat->BytesPerPixel = my_mode_info.bytes_per_scanline/my_mode_info.width;
//return a palette if we are in 256 color mode
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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");
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tempptr = (unsigned long *)vformat->palette->colors;
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for(i=0;i<256; i++)
{
*tempptr = (((unsigned long)ph_palette[i]) << 8);
tempptr++;
}
}
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currently_fullscreen = 0;
this->info.wm_available = 1;
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return 0;
}
static SDL_Surface *ph_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
PgDisplaySettings_t settings;
int mode, actual_width, actual_height;
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PtArg_t arg[5];
PhDim_t dim;
int rtnval;
PgColor_t ph_palette[_Pg_MAX_PALETTE];
int i;
unsigned long *tempptr;
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#ifdef HAVE_OPENGL
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uint64_t OGLAttrib[PH_OGL_MAX_ATTRIBS];
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int OGLargc;
#endif /* HAVE_OPENGL */
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actual_width = width;
actual_height = height;
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dim.w=width;
dim.h=height;
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/* Lock the event thread, in multi-threading environments */
SDL_Lock_EventThread();
/* Initialize the window */
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if (flags & SDL_FULLSCREEN) /* Direct Context , assume SDL_HWSURFACE also set */
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{
/* Get the video mode and set it */
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)
{
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fprintf(stderr,"error: get_mode failed\n");
exit(1);
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}
}
settings.mode = mode;
settings.refresh = 0;
settings.flags = 0;
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if (PgSetVideoMode( &settings ) < 0)
{
fprintf(stderr,"error: PgSetVideoMode failed\n");
}
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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 */
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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/* Hardware surface is Offsceen Context. ph_ResizeImage handles the switch */
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current->flags = (flags & (~SDL_RESIZABLE)); /* no stretch blit in offscreen context */
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}
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else /* must be SDL_SWSURFACE */
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{
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current->flags = (flags | SDL_RESIZABLE); /* yes we can resize as this is a software surface */
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}
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#ifdef HAVE_OPENGL
if (flags & SDL_OPENGL) /* for now support OpenGL in window mode only */
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{
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OGLargc=0;
if (this->gl_config.depth_size)
{
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_DEPTH_BITS;
OGLAttrib[OGLargc++]=this->gl_config.depth_size;
}
if (this->gl_config.stencil_size)
{
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_STENCIL_BITS;
OGLAttrib[OGLargc++]=this->gl_config.stencil_size;
}
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_NONE;
if (this->gl_config.double_buffer)
{
OGLContext=PdCreateOpenGLContext(2, &dim, 0, OGLAttrib);
}
else
{
OGLContext=PdCreateOpenGLContext(1, &dim, 0, OGLAttrib);
}
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if (OGLContext==NULL)
{
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fprintf(stderr,"error: cannot create OpenGL context.\n");
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exit(1);
}
PhDCSetCurrent(OGLContext);
}
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#else
if (flags & SDL_OPENGL) /* if no OpenGL support */
{
fprintf(stderr, "error: no OpenGL support, try to recompile library.\n");
exit(1);
}
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#endif /* HAVE_OPENGL */
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}
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/* If we are setting video to use the palette make sure we have allocated memory for it */
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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));
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/* fill the palette */
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rtnval = PgGetPalette(ph_palette);
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tempptr = (unsigned long *)current->format->palette->colors;
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for(i=0;i<256; i++)
{
*tempptr = (((unsigned long)ph_palette[i]) << 8);
tempptr++;
}
}
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/* Current window dimensions */
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PtGetResource( window, Pt_ARG_DIM, &dim, 0 );
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/* If we need to resize the window */
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if((dim.w != width)||(dim.h != height))
{
dim.w=width;
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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;
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current->format->BytesPerPixel = (bpp+7)/8;
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current->pitch = SDL_CalculatePitch(current);
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/* Must call at least once it setup image planes */
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ph_ResizeImage(this, current, flags);
}
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SDL_Unlock_EventThread();
/* We're done! */
return(current);
}
static void ph_VideoQuit(_THIS)
{
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ph_DestroyImage(this, SDL_VideoSurface);
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if (currently_fullscreen)
{
PdDirectStop( directContext );
PdReleaseDirectContext( directContext );
directContext=0;
currently_fullscreen = 0;
}
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}
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;
}
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#ifdef HAVE_OPENGL
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void ph_GL_SwapBuffers(_THIS)
{
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PgSetRegion(PtWidgetRid(window));
PdOpenGLContextSwapBuffers(OGLContext);
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}
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int ph_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
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{
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switch (attrib)
{
case SDL_GL_DOUBLEBUFFER:
*value=this->gl_config.double_buffer;
break;
case SDL_GL_STENCIL_SIZE:
*value=this->gl_config.stencil_size;
break;
case SDL_GL_DEPTH_SIZE:
*value=this->gl_config.depth_size;
break;
default:
*value=0;
return(-1);
}
return 0;
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}
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#endif /* HAVE_OPENGL */