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Diffstat (limited to '3rdparty/SDL2/src/video/x11/SDL_x11framebuffer.c')
-rw-r--r--3rdparty/SDL2/src/video/x11/SDL_x11framebuffer.c257
1 files changed, 0 insertions, 257 deletions
diff --git a/3rdparty/SDL2/src/video/x11/SDL_x11framebuffer.c b/3rdparty/SDL2/src/video/x11/SDL_x11framebuffer.c
deleted file mode 100644
index a4886169fd8..00000000000
--- a/3rdparty/SDL2/src/video/x11/SDL_x11framebuffer.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-#include "../../SDL_internal.h"
-
-#if SDL_VIDEO_DRIVER_X11
-
-#include "SDL_x11video.h"
-#include "SDL_x11framebuffer.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 SDL_bool have_mitshm(void)
-{
- /* Only use shared memory on local X servers */
- if ( (SDL_strncmp(X11_XDisplayName(NULL), ":", 1) == 0) ||
- (SDL_strncmp(X11_XDisplayName(NULL), "unix:", 5) == 0) ) {
- return SDL_X11_HAVE_SHM;
- }
- return SDL_FALSE;
-}
-
-#endif /* !NO_SHARED_MEMORY */
-
-int
-X11_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format,
- void ** pixels, int *pitch)
-{
- SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
- Display *display = data->videodata->display;
- XGCValues gcv;
- XVisualInfo vinfo;
-
- /* Free the old framebuffer surface */
- X11_DestroyWindowFramebuffer(_this, window);
-
- /* Create the graphics context for drawing */
- gcv.graphics_exposures = False;
- data->gc = X11_XCreateGC(display, data->xwindow, GCGraphicsExposures, &gcv);
- if (!data->gc) {
- return SDL_SetError("Couldn't create graphics context");
- }
-
- /* Find out the pixel format and depth */
- if (X11_GetVisualInfoFromVisual(display, data->visual, &vinfo) < 0) {
- return SDL_SetError("Couldn't get window visual information");
- }
-
- *format = X11_GetPixelFormatFromVisualInfo(display, &vinfo);
- if (*format == SDL_PIXELFORMAT_UNKNOWN) {
- return SDL_SetError("Unknown window pixel format");
- }
-
- /* Calculate pitch */
- *pitch = (((window->w * SDL_BYTESPERPIXEL(*format)) + 3) & ~3);
-
- /* Create the actual image */
-#ifndef NO_SHARED_MEMORY
- if (have_mitshm()) {
- XShmSegmentInfo *shminfo = &data->shminfo;
-
- shminfo->shmid = shmget(IPC_PRIVATE, window->h*(*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 = X11_XSetErrorHandler(shm_errhandler);
- X11_XShmAttach(display, shminfo);
- X11_XSync(display, True);
- X11_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) {
- data->ximage = X11_XShmCreateImage(display, data->visual,
- vinfo.depth, ZPixmap,
- shminfo->shmaddr, shminfo,
- window->w, window->h);
- if (!data->ximage) {
- X11_XShmDetach(display, shminfo);
- X11_XSync(display, False);
- shmdt(shminfo->shmaddr);
- } else {
- /* Done! */
- data->use_mitshm = SDL_TRUE;
- *pixels = shminfo->shmaddr;
- return 0;
- }
- }
- }
-#endif /* not NO_SHARED_MEMORY */
-
- *pixels = SDL_malloc(window->h*(*pitch));
- if (*pixels == NULL) {
- return SDL_OutOfMemory();
- }
-
- data->ximage = X11_XCreateImage(display, data->visual,
- vinfo.depth, ZPixmap, 0, (char *)(*pixels),
- window->w, window->h, 32, 0);
- if (!data->ximage) {
- SDL_free(*pixels);
- return SDL_SetError("Couldn't create XImage");
- }
- return 0;
-}
-
-int
-X11_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects,
- int numrects)
-{
- SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
- Display *display = data->videodata->display;
- int i;
- int x, y, w ,h;
-#ifndef NO_SHARED_MEMORY
- if (data->use_mitshm) {
- for (i = 0; i < numrects; ++i) {
- x = rects[i].x;
- y = rects[i].y;
- w = rects[i].w;
- h = rects[i].h;
-
- if (w <= 0 || h <= 0 || (x + w) <= 0 || (y + h) <= 0) {
- /* Clipped? */
- continue;
- }
- if (x < 0)
- {
- x += w;
- w += rects[i].x;
- }
- if (y < 0)
- {
- y += h;
- h += rects[i].y;
- }
- if (x + w > window->w)
- w = window->w - x;
- if (y + h > window->h)
- h = window->h - y;
-
- X11_XShmPutImage(display, data->xwindow, data->gc, data->ximage,
- x, y, x, y, w, h, False);
- }
- }
- else
-#endif /* !NO_SHARED_MEMORY */
- {
- for (i = 0; i < numrects; ++i) {
- x = rects[i].x;
- y = rects[i].y;
- w = rects[i].w;
- h = rects[i].h;
-
- if (w <= 0 || h <= 0 || (x + w) <= 0 || (y + h) <= 0) {
- /* Clipped? */
- continue;
- }
- if (x < 0)
- {
- x += w;
- w += rects[i].x;
- }
- if (y < 0)
- {
- y += h;
- h += rects[i].y;
- }
- if (x + w > window->w)
- w = window->w - x;
- if (y + h > window->h)
- h = window->h - y;
-
- X11_XPutImage(display, data->xwindow, data->gc, data->ximage,
- x, y, x, y, w, h);
- }
- }
-
- X11_XSync(display, False);
-
- return 0;
-}
-
-void
-X11_DestroyWindowFramebuffer(_THIS, SDL_Window * window)
-{
- SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
- Display *display;
-
- if (!data) {
- /* The window wasn't fully initialized */
- return;
- }
-
- display = data->videodata->display;
-
- if (data->ximage) {
- XDestroyImage(data->ximage);
-
-#ifndef NO_SHARED_MEMORY
- if (data->use_mitshm) {
- X11_XShmDetach(display, &data->shminfo);
- X11_XSync(display, False);
- shmdt(data->shminfo.shmaddr);
- data->use_mitshm = SDL_FALSE;
- }
-#endif /* !NO_SHARED_MEMORY */
-
- data->ximage = NULL;
- }
- if (data->gc) {
- X11_XFreeGC(display, data->gc);
- data->gc = NULL;
- }
-}
-
-#endif /* SDL_VIDEO_DRIVER_X11 */
-
-/* vi: set ts=4 sw=4 expandtab: */