sdl-ios-xcode: src/video/x11/SDL_x11framebuffer.c annotate

author	Sam Lantinga <slouken@libsdl.org>
date	Fri, 04 Feb 2011 18:05:20 -0800
parents
children	b530ef003506

rev	line source
5185 073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	3 Copyright (C) 1997-2009 Sam Lantinga
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Lesser General Public License for more details.
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free Software
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	22 #include "SDL_config.h"
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 #include "SDL_x11video.h"
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25 #include "SDL_x11framebuffer.h"
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	26
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28 #ifndef NO_SHARED_MEMORY
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 /* Shared memory error handler routine */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31 static int shm_error;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32 static int (X_handler)(Display , XErrorEvent *) = NULL;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33 static int shm_errhandler(Display d, XErrorEvent e)
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	35 if ( e->error_code == BadAccess ) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36 shm_error = True;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37 return(0);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	38 } else
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 return(X_handler(d,e));
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 static SDL_bool have_mitshm(void)
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	43 {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44 /* Only use shared memory on local X servers */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 if ( (SDL_strncmp(XDisplayName(NULL), ":", 1) == 0) \|\|
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46 (SDL_strncmp(XDisplayName(NULL), "unix:", 5) == 0) ) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	47 return SDL_X11_HAVE_SHM;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	48 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	49 return SDL_FALSE;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52 #endif /* !NO_SHARED_MEMORY */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 int
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 X11_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 void ** pixels, int *pitch)
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 SDL_WindowData data = (SDL_WindowData ) window->driverdata;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59 Display *display = data->videodata->display;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	60 XGCValues gcv;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 XVisualInfo vinfo;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	62
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 /* Free the old framebuffer surface */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64 X11_DestroyWindowFramebuffer(_this, window);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	65
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 /* Create the graphics context for drawing */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67 gcv.graphics_exposures = False;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 data->gc = XCreateGC(display, data->xwindow, GCGraphicsExposures, &gcv);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	69 if (!data->gc) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70 SDL_SetError("Couldn't create graphics context");
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 return -1;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	72 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	74 /* Find out the pixel format and depth */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	75 if (X11_GetVisualInfoFromVisual(display, data->visual, &vinfo) < 0) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76 SDL_SetError("Couldn't get window visual information");
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	77 return -1;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	80 *format = X11_GetPixelFormatFromVisualInfo(display, &vinfo);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81 if (*format == SDL_PIXELFORMAT_UNKNOWN) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 SDL_SetError("Unknown window pixel format");
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83 return -1;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 /* Calculate pitch */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 pitch = (((window->w SDL_BYTESPERPIXEL(*format)) + 3) & ~3);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89 /* Create the actual image */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 #ifndef NO_SHARED_MEMORY
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91 if (have_mitshm()) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92 XShmSegmentInfo *shminfo = &data->shminfo;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	94 shminfo->shmid = shmget(IPC_PRIVATE, window->h(pitch), IPC_CREAT \| 0777);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	95 if ( shminfo->shmid >= 0 ) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96 shminfo->shmaddr = (char *)shmat(shminfo->shmid, 0, 0);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97 shminfo->readOnly = False;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	98 if ( shminfo->shmaddr != (char *)-1 ) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 shm_error = False;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100 X_handler = XSetErrorHandler(shm_errhandler);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	101 XShmAttach(display, shminfo);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102 XSync(display, True);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103 XSetErrorHandler(X_handler);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 if ( shm_error )
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105 shmdt(shminfo->shmaddr);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	106 } else {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107 shm_error = True;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	109 shmctl(shminfo->shmid, IPC_RMID, NULL);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110 } else {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	111 shm_error = True;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	113 if (!shm_error) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114 data->ximage = XShmCreateImage(display, data->visual,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	115 vinfo.depth, ZPixmap,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116 shminfo->shmaddr, shminfo,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117 window->w, window->h);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118 if (!data->ximage) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119 XShmDetach(display, shminfo);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120 XSync(display, False);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	121 shmdt(shminfo->shmaddr);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122 } else {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 /* Done! */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124 data->use_mitshm = SDL_TRUE;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125 *pixels = shminfo->shmaddr;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126 return 0;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130 #endif /* not NO_SHARED_MEMORY */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	131
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132 pixels = SDL_malloc(window->h(*pitch));
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 if (*pixels == NULL) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134 SDL_OutOfMemory();
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135 return -1;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	137
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	138 data->ximage = XCreateImage(display, data->visual,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	139 vinfo.depth, ZPixmap, 0, (char )(pixels),
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140 window->w, window->h, 32, 0);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141 if (!data->ximage) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 SDL_free(*pixels);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 SDL_SetError("Couldn't create XImage");
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 return -1;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146 return 0;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	149 int
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150 X11_UpdateWindowFramebuffer(_THIS, SDL_Window * window,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 int numrects, SDL_Rect * rects)
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	152 {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153 SDL_WindowData data = (SDL_WindowData ) window->driverdata;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	154 Display *display = data->videodata->display;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155 int i;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	156 SDL_Rect *rect;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	157
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158 #ifndef NO_SHARED_MEMORY
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	159 if (data->use_mitshm) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160 for (i = 0; i < numrects; ++i) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161 rect = &rects[i];
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	162
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 if (rect->w == 0 \|\| rect->h == 0) { /* Clipped? */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	164 continue;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	165 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	166 XShmPutImage(display, data->xwindow, data->gc, data->ximage,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	167 rect->x, rect->y,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	168 rect->x, rect->y, rect->w, rect->h, False);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	169 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	170 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	171 else
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172 #endif /* !NO_SHARED_MEMORY */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	173 {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	174 for (i = 0; i < numrects; ++i) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	175 rect = &rects[i];
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	176
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	177 if (rect->w == 0 \|\| rect->h == 0) { /* Clipped? */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	178 continue;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	179 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	180 XPutImage(display, data->xwindow, data->gc, data->ximage,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	181 rect->x, rect->y,
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	182 rect->x, rect->y, rect->w, rect->h);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	183 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	184 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	185 XSync(display, False);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	186 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	187
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	188 void
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	189 X11_DestroyWindowFramebuffer(_THIS, SDL_Window * window)
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	190 {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	191 SDL_WindowData data = (SDL_WindowData ) window->driverdata;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	192 Display *display = data->videodata->display;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	193
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	194 if (data->ximage) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	195 XDestroyImage(data->ximage);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	196
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	197 #ifndef NO_SHARED_MEMORY
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	198 if (data->use_mitshm) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	199 XShmDetach(display, &data->shminfo);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	200 XSync(display, False);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	201 shmdt(data->shminfo.shmaddr);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	202 data->use_mitshm = SDL_FALSE;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	203 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	204 #endif /* !NO_SHARED_MEMORY */
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	205
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	206 data->ximage = NULL;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	207 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	208 if (data->gc) {
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	209 XFreeGC(display, data->gc);
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	210 data->gc = NULL;
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	211 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	212 }
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	213
073b86030262 Added the X11 framebuffer implementation. Simple! :) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	214 /* vi: set ts=4 sw=4 expandtab: */

5185

073b86030262 Added the X11 framebuffer implementation. Simple! :)