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Diffstat (limited to 'distrib/sdl-1.2.12/src/video/x11/SDL_x11image.c')
-rw-r--r--distrib/sdl-1.2.12/src/video/x11/SDL_x11image.c318
1 files changed, 0 insertions, 318 deletions
diff --git a/distrib/sdl-1.2.12/src/video/x11/SDL_x11image.c b/distrib/sdl-1.2.12/src/video/x11/SDL_x11image.c
deleted file mode 100644
index a2d011d..0000000
--- a/distrib/sdl-1.2.12/src/video/x11/SDL_x11image.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997-2006 Sam Lantinga
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
- Sam Lantinga
- slouken@libsdl.org
-*/
-#include "SDL_config.h"
-
-#include <stdio.h>
-#include <unistd.h>
-
-#include "SDL_endian.h"
-#include "../../events/SDL_events_c.h"
-#include "SDL_x11image_c.h"
-
-#ifndef NO_SHARED_MEMORY
-
-/* Shared memory error handler routine */
-static int shm_error;
-static int (*X_handler)(Display *, XErrorEvent *) = NULL;
-static int shm_errhandler(Display *d, XErrorEvent *e)
-{
- if ( e->error_code == BadAccess ) {
- shm_error = True;
- return(0);
- } else
- return(X_handler(d,e));
-}
-
-static void try_mitshm(_THIS, SDL_Surface *screen)
-{
- /* Dynamic X11 may not have SHM entry points on this box. */
- if ((use_mitshm) && (!SDL_X11_HAVE_SHM))
- use_mitshm = 0;
-
- if(!use_mitshm)
- return;
- shminfo.shmid = shmget(IPC_PRIVATE, screen->h*screen->pitch,
- IPC_CREAT | 0777);
- if ( shminfo.shmid >= 0 ) {
- shminfo.shmaddr = (char *)shmat(shminfo.shmid, 0, 0);
- shminfo.readOnly = False;
- if ( shminfo.shmaddr != (char *)-1 ) {
- shm_error = False;
- X_handler = XSetErrorHandler(shm_errhandler);
- XShmAttach(SDL_Display, &shminfo);
- XSync(SDL_Display, True);
- XSetErrorHandler(X_handler);
- if ( shm_error )
- shmdt(shminfo.shmaddr);
- } else {
- shm_error = True;
- }
- shmctl(shminfo.shmid, IPC_RMID, NULL);
- } else {
- shm_error = True;
- }
- if ( shm_error )
- use_mitshm = 0;
- if ( use_mitshm )
- screen->pixels = shminfo.shmaddr;
-}
-#endif /* ! NO_SHARED_MEMORY */
-
-/* Various screen update functions available */
-static void X11_NormalUpdate(_THIS, int numrects, SDL_Rect *rects);
-static void X11_MITSHMUpdate(_THIS, int numrects, SDL_Rect *rects);
-
-int X11_SetupImage(_THIS, SDL_Surface *screen)
-{
-#ifndef NO_SHARED_MEMORY
- try_mitshm(this, screen);
- if(use_mitshm) {
- SDL_Ximage = XShmCreateImage(SDL_Display, SDL_Visual,
- this->hidden->depth, ZPixmap,
- shminfo.shmaddr, &shminfo,
- screen->w, screen->h);
- if(!SDL_Ximage) {
- XShmDetach(SDL_Display, &shminfo);
- XSync(SDL_Display, False);
- shmdt(shminfo.shmaddr);
- screen->pixels = NULL;
- goto error;
- }
- this->UpdateRects = X11_MITSHMUpdate;
- }
- if(!use_mitshm)
-#endif /* not NO_SHARED_MEMORY */
- {
- int bpp;
- screen->pixels = SDL_malloc(screen->h*screen->pitch);
- if ( screen->pixels == NULL ) {
- SDL_OutOfMemory();
- return -1;
- }
- bpp = screen->format->BytesPerPixel;
- SDL_Ximage = XCreateImage(SDL_Display, SDL_Visual,
- this->hidden->depth, ZPixmap, 0,
- (char *)screen->pixels,
- screen->w, screen->h,
- 32, 0);
- if ( SDL_Ximage == NULL )
- goto error;
- /* XPutImage will convert byte sex automatically */
- SDL_Ximage->byte_order = (SDL_BYTEORDER == SDL_BIG_ENDIAN)
- ? MSBFirst : LSBFirst;
- this->UpdateRects = X11_NormalUpdate;
- }
- screen->pitch = SDL_Ximage->bytes_per_line;
- return(0);
-
-error:
- SDL_SetError("Couldn't create XImage");
- return 1;
-}
-
-void X11_DestroyImage(_THIS, SDL_Surface *screen)
-{
- if ( SDL_Ximage ) {
- XDestroyImage(SDL_Ximage);
-#ifndef NO_SHARED_MEMORY
- if ( use_mitshm ) {
- XShmDetach(SDL_Display, &shminfo);
- XSync(SDL_Display, False);
- shmdt(shminfo.shmaddr);
- }
-#endif /* ! NO_SHARED_MEMORY */
- SDL_Ximage = NULL;
- }
- if ( screen ) {
- screen->pixels = NULL;
- }
-}
-
-/* Determine the number of CPUs in the system */
-static int num_CPU(void)
-{
- static int num_cpus = 0;
-
- if(!num_cpus) {
-#if defined(__LINUX__)
- char line[BUFSIZ];
- FILE *pstat = fopen("/proc/stat", "r");
- if ( pstat ) {
- while ( fgets(line, sizeof(line), pstat) ) {
- if (SDL_memcmp(line, "cpu", 3) == 0 && line[3] != ' ') {
- ++num_cpus;
- }
- }
- fclose(pstat);
- }
-#elif defined(__IRIX__)
- num_cpus = sysconf(_SC_NPROC_ONLN);
-#elif defined(_SC_NPROCESSORS_ONLN)
- /* number of processors online (SVR4.0MP compliant machines) */
- num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
-#elif defined(_SC_NPROCESSORS_CONF)
- /* number of processors configured (SVR4.0MP compliant machines) */
- num_cpus = sysconf(_SC_NPROCESSORS_CONF);
-#endif
- if ( num_cpus <= 0 ) {
- num_cpus = 1;
- }
- }
- return num_cpus;
-}
-
-int X11_ResizeImage(_THIS, SDL_Surface *screen, Uint32 flags)
-{
- int retval;
-
- X11_DestroyImage(this, screen);
- if ( flags & SDL_OPENGL ) { /* No image when using GL */
- retval = 0;
- } else {
- retval = X11_SetupImage(this, screen);
- /* We support asynchronous blitting on the display */
- if ( flags & SDL_ASYNCBLIT ) {
- /* This is actually slower on single-CPU systems,
- probably because of CPU contention between the
- X server and the application.
- Note: Is this still true with XFree86 4.0?
- */
- if ( num_CPU() > 1 ) {
- screen->flags |= SDL_ASYNCBLIT;
- }
- }
- }
- return(retval);
-}
-
-/* We don't actually allow hardware surfaces other than the main one */
-int X11_AllocHWSurface(_THIS, SDL_Surface *surface)
-{
- return(-1);
-}
-void X11_FreeHWSurface(_THIS, SDL_Surface *surface)
-{
- return;
-}
-
-int X11_LockHWSurface(_THIS, SDL_Surface *surface)
-{
- if ( (surface == SDL_VideoSurface) && blit_queued ) {
- XSync(GFX_Display, False);
- blit_queued = 0;
- }
- return(0);
-}
-void X11_UnlockHWSurface(_THIS, SDL_Surface *surface)
-{
- return;
-}
-
-int X11_FlipHWSurface(_THIS, SDL_Surface *surface)
-{
- return(0);
-}
-
-static void X11_NormalUpdate(_THIS, int numrects, SDL_Rect *rects)
-{
- int i;
-
- for (i = 0; i < numrects; ++i) {
- if ( rects[i].w == 0 || rects[i].h == 0 ) { /* Clipped? */
- continue;
- }
- XPutImage(GFX_Display, SDL_Window, SDL_GC, SDL_Ximage,
- rects[i].x, rects[i].y,
- rects[i].x, rects[i].y, rects[i].w, rects[i].h);
- }
- if ( SDL_VideoSurface->flags & SDL_ASYNCBLIT ) {
- XFlush(GFX_Display);
- blit_queued = 1;
- } else {
- XSync(GFX_Display, False);
- }
-}
-
-static void X11_MITSHMUpdate(_THIS, int numrects, SDL_Rect *rects)
-{
-#ifndef NO_SHARED_MEMORY
- int i;
-
- for ( i=0; i<numrects; ++i ) {
- if ( rects[i].w == 0 || rects[i].h == 0 ) { /* Clipped? */
- continue;
- }
- XShmPutImage(GFX_Display, SDL_Window, SDL_GC, SDL_Ximage,
- rects[i].x, rects[i].y,
- rects[i].x, rects[i].y, rects[i].w, rects[i].h,
- False);
- }
- if ( SDL_VideoSurface->flags & SDL_ASYNCBLIT ) {
- XFlush(GFX_Display);
- blit_queued = 1;
- } else {
- XSync(GFX_Display, False);
- }
-#endif /* ! NO_SHARED_MEMORY */
-}
-
-/* There's a problem with the automatic refreshing of the display.
- Even though the XVideo code uses the GFX_Display to update the
- video memory, it appears that updating the window asynchronously
- from a different thread will cause "blackouts" of the window.
- This is a sort of a hacked workaround for the problem.
-*/
-static int enable_autorefresh = 1;
-
-void X11_DisableAutoRefresh(_THIS)
-{
- --enable_autorefresh;
-}
-
-void X11_EnableAutoRefresh(_THIS)
-{
- ++enable_autorefresh;
-}
-
-void X11_RefreshDisplay(_THIS)
-{
- /* Don't refresh a display that doesn't have an image (like GL)
- Instead, post an expose event so the application can refresh.
- */
- if ( ! SDL_Ximage || (enable_autorefresh <= 0) ) {
- SDL_PrivateExpose();
- return;
- }
-#ifndef NO_SHARED_MEMORY
- if ( this->UpdateRects == X11_MITSHMUpdate ) {
- XShmPutImage(SDL_Display, SDL_Window, SDL_GC, SDL_Ximage,
- 0, 0, 0, 0, this->screen->w, this->screen->h,
- False);
- } else
-#endif /* ! NO_SHARED_MEMORY */
- {
- XPutImage(SDL_Display, SDL_Window, SDL_GC, SDL_Ximage,
- 0, 0, 0, 0, this->screen->w, this->screen->h);
- }
- XSync(SDL_Display, False);
-}
-
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