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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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int ph_SetupOpenGLContext(_THIS, int width, int height, int bpp, Uint32 flags);
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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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static int ph_Available(void)
{
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int phstat=-1;
phstat=PtInit(0);
if (phstat==0)
{
return 1;
}
else
{
return 0;
}
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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));
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if (device) {
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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;
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device->ToggleFullScreen = ph_ToggleFullScreen;
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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
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};
static void ph_DeleteDevice(SDL_VideoDevice *device)
{
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if (device)
{
if (device->hidden)
{
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free(device->hidden);
device->hidden = NULL;
}
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if (device->gl_data)
{
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free(device->gl_data);
device->gl_data = NULL;
}
free(device);
device = NULL;
}
}
static int ph_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
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PgVideoModeInfo_t my_mode_info;
PgHWCaps_t my_hwcaps;
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window=NULL;
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desktoppal=SDLPH_PAL_NONE;
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#ifdef HAVE_OPENGL
oglctx=NULL;
#endif /* HAVE_OPENGL */
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captionflag=0;
old_video_mode=-1;
old_refresh_rate=-1;
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if (NULL == (event = malloc(EVENT_SIZE)))
{
exit(EXIT_FAILURE);
}
/* 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("ph_VideoInit: could not create blank cursor\n");
}
if (PgGetGraphicsHWCaps(&my_hwcaps) < 0)
{
fprintf(stderr,"ph_VideoInit: GetGraphicsHWCaps failed!! \n");
}
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 = my_mode_info.bytes_per_scanline/my_mode_info.width;
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desktopbpp = my_mode_info.bits_per_pixel;
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/* save current palette */
if (desktopbpp==8)
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{
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PgGetPalette(ph_palette);
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}
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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;
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int mode;
PtArg_t arg[32];
PhDim_t dim;
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int rtnval;
int i;
unsigned long *tempptr;
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int pargc;
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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();
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current->flags = flags;
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/* create window if no OpenGL support selected */
if ((flags & SDL_OPENGL)!=SDL_OPENGL)
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{
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pargc=0;
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// prevent using HWSURFACE in window mode if desktop bpp != chosen bpp
if ((flags & SDL_HWSURFACE) && (!(flags & SDL_FULLSCREEN)))
{
if (desktopbpp!=bpp)
{
fprintf(stderr, "ph_SetVideoMode(): SDL_HWSURFACE available only with chosen bpp equal desktop bpp !\n");
return NULL;
}
}
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PtSetArg(&arg[pargc++], Pt_ARG_DIM, &dim, 0);
PtSetArg(&arg[pargc++], Pt_ARG_RESIZE_FLAGS, Pt_FALSE, Pt_RESIZE_XY_AS_REQUIRED);
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/* enable window minimizing */
PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_TRUE, Ph_WM_HIDE);
/* remove border and caption if no frame flag selected */
if ((flags & SDL_NOFRAME) == SDL_NOFRAME)
{
PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_FALSE, Ph_WM_RENDER_TITLE | Ph_WM_RENDER_BORDER);
}
else
{
PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_TRUE, Ph_WM_RENDER_TITLE | Ph_WM_RENDER_BORDER);
}
/* if window is not resizable then remove resize handles and maximize button */
if ((flags & SDL_RESIZABLE) != SDL_RESIZABLE)
{
PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_FALSE, Ph_WM_RENDER_RESIZE | Ph_WM_RENDER_MAX);
PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_FALSE, Ph_WM_RESIZE | Ph_WM_MAX);
PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_NOTIFY_FLAGS, Pt_FALSE, Ph_WM_RESIZE | Ph_WM_MAX);
}
else
{
PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_TRUE, Ph_WM_RENDER_RESIZE | Ph_WM_RENDER_MAX);
/* it is need to be Pt_FALSE to allow the application to process the resize callback */
PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_FALSE, Ph_WM_RESIZE | Ph_WM_MAX);
PtSetArg(&arg[pargc++], Pt_ARG_WINDOW_NOTIFY_FLAGS, Pt_TRUE, Ph_WM_RESIZE | Ph_WM_MAX);
}
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if (window!=NULL)
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{
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PtUnrealizeWidget(window);
PtDestroyWidget(window);
window=NULL;
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}
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window=PtCreateWidget(PtWindow, NULL, pargc, arg);
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PtRealizeWidget(window);
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PtFlush();
}
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#ifdef HAVE_OPENGL
if (flags & SDL_OPENGL)
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{
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/* ph_SetupOpenGLContext creates also window as need */
if (ph_SetupOpenGLContext(this, width, height, bpp, flags)==0)
{
/* setup OGL update function ... ugly method */
ph_ResizeImage(this, current, flags);
}
else
{
/* if context creation fail, report no OpenGL to high level */
current->flags=(flags & (~SDL_OPENGL));
}
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#else
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if (flags & SDL_OPENGL) /* if no built-in OpenGL support */
{
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fprintf(stderr, "ph_SetVideoMode(): no OpenGL support, try to recompile library.\n");
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current->flags=(flags & (~SDL_OPENGL));
return NULL;
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#endif /* HAVE_OPENGL */
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}
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else
{
/* Initialize the window */
if (flags & SDL_FULLSCREEN) /* Direct Context , assume SDL_HWSURFACE also set */
{
/* Get the video mode and set it */
if (flags & SDL_ANYFORMAT)
{
if ((mode = get_mode_any_format(width, height, bpp)) == 0)
{
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fprintf(stderr,"ph_SetVideoMode(): get_mode_any_format failed !\n");
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exit(1);
}
}
else
{
if ((mode = get_mode(width, height, bpp)) == 0)
{
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fprintf(stderr,"ph_SetVideoMode(): get_mode failed !\n");
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exit(1);
}
}
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if (bpp==8)
{
desktoppal=SDLPH_PAL_SYSTEM;
}
/* save old video mode caps */
PgGetVideoMode(&settings);
old_video_mode=settings.mode;
old_refresh_rate=settings.refresh;
/* setup new video mode */
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settings.mode = mode;
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,"ph_SetVideoMode(): PgSetVideoMode failed !\n");
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}
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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 */
else
{
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/* Use offscreen memory iff SDL_HWSURFACE flag is set */
if (flags & SDL_HWSURFACE)
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{
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/* no stretch blit in offscreen context */
current->flags = (flags & (~SDL_RESIZABLE));
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}
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/* using palette emulation code in window mode */
if (bpp==8)
{
if (desktopbpp>=15)
{
desktoppal=SDLPH_PAL_EMULATE;
}
else
{
desktoppal=SDLPH_PAL_SYSTEM;
}
}
else
{
desktoppal=SDLPH_PAL_NONE;
}
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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 */
if (bpp==8)
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{
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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++;
}
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}
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}
current->w = width;
current->h = height;
current->format->BitsPerPixel = bpp;
current->format->BytesPerPixel = (bpp+7)/8;
current->pitch = SDL_CalculatePitch(current);
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/* Must call at least once it setup image planes */
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rtnval = ph_ResizeImage(this, current, flags);
if (rtnval==-1)
{
fprintf(stderr,"ph_SetVideoMode(): ph_ResizeImage failed !\n");
return NULL;
}
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/* delayed set caption call */
if (captionflag)
{
ph_SetCaption(this, this->wm_title, NULL);
}
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/* finish window drawing */
PtFlush();
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SDL_Unlock_EventThread();
/* We're done! */
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return (current);
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}
static void ph_VideoQuit(_THIS)
{
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#ifdef HAVE_OPENGL
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PhRegion_t region_info;
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#endif /* HAVE_OPENGL */
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ph_DestroyImage(this, SDL_VideoSurface);
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if (currently_fullscreen)
{
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ph_LeaveFullScreen(this);
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}
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#ifdef HAVE_OPENGL
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/* prevent double SEGFAULT during parachute mode */
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if (this->screen)
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{
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if (((this->screen->flags & SDL_FULLSCREEN)==SDL_FULLSCREEN) &&
((this->screen->flags & SDL_OPENGL)==SDL_OPENGL))
{
region_info.cursor_type=Ph_CURSOR_POINTER;
region_info.rid=PtWidgetRid(window);
PhRegionChange(Ph_REGION_CURSOR, 0, ®ion_info, NULL, NULL);
}
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}
PtFlush();
#endif /* HAVE_OPENGL */
if (window)
{
PtUnrealizeWidget(window);
PtDestroyWidget(window);
window=NULL;
}
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/* restore palette */
if (desktoppal!=SDLPH_PAL_NONE)
{
PgSetPalette(ph_palette, 0, 0, _Pg_MAX_PALETTE, Pg_PALSET_GLOBAL | Pg_PALSET_FORCE_EXPOSE, 0);
}
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#ifdef HAVE_OPENGL
if (oglctx)
{
PhDCSetCurrent(NULL);
PhDCRelease(oglctx);
oglctx=NULL;
}
#endif /* HAVE_OPENGL */
}
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static int ph_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
{
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int i;
PhPoint_t point={0, 0};
PgColor_t syspalph[_Pg_MAX_PALETTE];
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/* palette emulation code, using palette of the PhImage_t struct */
if (desktoppal==SDLPH_PAL_EMULATE)
{
if ((SDL_Image) && (SDL_Image->palette))
{
for (i=firstcolor; i<firstcolor+ncolors; i++)
{
SDL_Image->palette[i] = 0x00000000UL;
SDL_Image->palette[i] |= colors[i-firstcolor].r<<16;
SDL_Image->palette[i] |= colors[i-firstcolor].g<<8;
SDL_Image->palette[i] |= colors[i-firstcolor].b;
}
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/* image needs to be redrawed, very slow method */
PgDrawPhImage(&point, SDL_Image, 0);
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}
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}
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else
{
if (desktoppal==SDLPH_PAL_SYSTEM)
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{
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for (i=firstcolor; i<firstcolor+ncolors; i++)
{
syspalph[i] = 0x00000000UL;
syspalph[i] |= colors[i-firstcolor].r<<16;
syspalph[i] |= colors[i-firstcolor].g<<8;
syspalph[i] |= colors[i-firstcolor].b;
}
if ((this->screen->flags & SDL_FULLSCREEN) != SDL_FULLSCREEN)
{
/* window mode must use soft palette */
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PgSetPalette((PgColor_t*)&syspalph[firstcolor], 0, firstcolor, ncolors, Pg_PALSET_SOFT, 0);
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/* image needs to be redrawed, very slow method */
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if (SDL_Image)
{
PgDrawPhImage(&point, SDL_Image, 0);
}
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}
else
{
/* fullscreen mode must use hardware palette */
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PgSetPalette((PgColor_t*)&syspalph[firstcolor], 0, firstcolor, ncolors, Pg_PALSET_GLOBAL, 0);
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}
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}
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else
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{
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/* SDLPH_PAL_NONE do nothing */
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}
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}
return 1;
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}
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#ifdef HAVE_OPENGL
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int ph_SetupOpenGLContext(_THIS, int width, int height, int bpp, Uint32 flags)
{
PtArg_t args[8];
PhDim_t dim;
uint64_t OGLAttrib[PH_OGL_MAX_ATTRIBS];
int OGLargc;
int pargc;
dim.w=width;
dim.h=height;
if (oglctx!=NULL)
{
PhDCSetCurrent(NULL);
PhDCRelease(oglctx);
oglctx=NULL;
}
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_FORCE_SW;
if (flags & SDL_FULLSCREEN)
{
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN;
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_DIRECT;
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN_BEST;
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FULLSCREEN_CENTER;
}
OGLAttrib[OGLargc++]=PHOGL_ATTRIB_NONE;
if (this->gl_config.double_buffer)
{
oglctx=PdCreateOpenGLContext(2, &dim, 0, OGLAttrib);
}
else
{
oglctx=PdCreateOpenGLContext(1, &dim, 0, OGLAttrib);
}
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if (oglctx==NULL)
{
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fprintf(stderr,"ph_SetupOpenGLContext(): cannot create OpenGL context.\n");
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return (-1);
}
PhDCSetCurrent(oglctx);
pargc=0;
PtSetArg(&args[pargc++], Pt_ARG_DIM, &dim, 0);
PtSetArg(&args[pargc++], Pt_ARG_RESIZE_FLAGS, Pt_FALSE, Pt_RESIZE_XY_AS_REQUIRED);
PtSetArg(&args[pargc++], Pt_ARG_FILL_COLOR, Pg_BLACK, 0);
if (flags & SDL_FULLSCREEN)
{
PhPoint_t pos;
pos.x=0;
pos.y=0;
PtSetArg(&args[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, Pt_FALSE, ~0);
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PtSetArg(&args[pargc++], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_TRUE, Ph_WM_FFRONT | Ph_WM_CLOSE | Ph_WM_TOFRONT | Ph_WM_CONSWITCH);
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PtSetArg(&args[pargc++], Pt_ARG_WINDOW_STATE, Pt_TRUE, Ph_WM_STATE_ISFRONT | Ph_WM_STATE_ISFOCUS);
PtSetArg(&args[pargc++], Pt_ARG_POS, &pos, 0);
}
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else
{
/* remove border and caption if no frame flag selected */
if ((flags & SDL_NOFRAME) == SDL_NOFRAME)
{
PtSetArg(&args[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, 0, Ph_WM_RENDER_TITLE | Ph_WM_RENDER_BORDER);
}
else
{
/* if window is not resizable then remove resize handles */
if ((flags & SDL_RESIZABLE) != SDL_RESIZABLE)
{
PtSetArg(&args[pargc++], Pt_ARG_WINDOW_RENDER_FLAGS, 0, Ph_WM_RENDER_RESIZE);
}
}
}
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if (window!=NULL)
{
PtUnrealizeWidget(window);
PtDestroyWidget(window);
window=NULL;
}
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window=PtCreateWidget(PtWindow, NULL, pargc, args);
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PtRealizeWidget(window);
/* disable mouse for fullscreen */
if (flags & SDL_FULLSCREEN)
{
PhRegion_t region_info;
region_info.cursor_type=Ph_CURSOR_NONE;
region_info.rid=PtWidgetRid(window);
PhRegionChange(Ph_REGION_CURSOR, 0, ®ion_info, NULL, NULL);
}
PtFlush();
return 0;
}
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void ph_GL_SwapBuffers(_THIS)
{
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PgSetRegion(PtWidgetRid(window));
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PdOpenGLContextSwapBuffers(oglctx);
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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 */