/* * Copyright 2009 Vincent Sanders * * This file is part of libnsfb, http://www.netsurf-browser.org/ * Licenced under the MIT License, * http://www.opensource.org/licenses/mit-license.php */ #define _XOPEN_SOURCE 500 #include #include #include #include #include #include #include #include #include #include #include #include #include "libnsfb.h" #include "libnsfb_event.h" #include "libnsfb_plot.h" #include "libnsfb_plot_util.h" #include "nsfb.h" #include "surface.h" #include "plot.h" #include "cursor.h" #if defined(NSFB_NEED_HINTS_ALLOC) static xcb_size_hints_t * xcb_alloc_size_hints(void) { return calloc(1, sizeof(xcb_size_hints_t)); } static void xcb_free_size_hints(xcb_size_hints_t *hints) { free(hints); } #endif #if defined(NSFB_NEED_ICCCM_API_PREFIX) #define xcb_size_hints_set_max_size xcb_icccm_size_hints_set_max_size #define xcb_size_hints_set_min_size xcb_icccm_size_hints_set_min_size #define xcb_set_wm_size_hints xcb_icccm_set_wm_size_hints #endif #if (NSFB_XCBPROTO_MAJOR_VERSION > 1) || \ (NSFB_XCBPROTO_MAJOR_VERSION == 1 && NSFB_XCBPROTO_MINOR_VERSION >= 6) #define WM_NORMAL_HINTS XCB_ATOM_WM_NORMAL_HINTS #endif #define X_BUTTON_LEFT 1 #define X_BUTTON_MIDDLE 2 #define X_BUTTON_RIGHT 3 #define X_BUTTON_WHEELUP 4 #define X_BUTTON_WHEELDOWN 5 typedef struct xstate_s { xcb_connection_t *connection; /* The x server connection */ xcb_screen_t *screen; /* The screen to put the window on */ xcb_key_symbols_t *keysymbols; /* keysym mappings */ xcb_shm_segment_info_t shminfo; xcb_image_t *image; /* The X image buffer */ xcb_window_t window; /* The handle to the window */ xcb_pixmap_t pmap; /* The handle to the backing pixmap */ xcb_gcontext_t gc; /* The handle to the pixmap plotting graphics context */ xcb_shm_seg_t segment; /* The handle to the image shared memory */ } xstate_t; /* X keyboard codepage to nsfb mapping*/ enum nsfb_key_code_e XCSKeyboardMap[256] = { NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_BACKSPACE, /* XK_BackSpace */ NSFB_KEY_TAB, /* XK_Tab */ NSFB_KEY_UNKNOWN, /* XK_Linefeed */ NSFB_KEY_CLEAR, /* XK_Clear */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_RETURN, /* XK_Return */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ /* 0x10 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_PAUSE, /* XK_Pause */ NSFB_KEY_UNKNOWN, /* XK_Scroll_Lock */ NSFB_KEY_UNKNOWN, /* XK_Sys_Req */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_ESCAPE, /* XK_Escape */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ /* 0x20 */ NSFB_KEY_UNKNOWN, /* XK_Multi_key */ NSFB_KEY_UNKNOWN, /* XK_Kanji */ NSFB_KEY_UNKNOWN, /* XK_Muhenkan */ NSFB_KEY_UNKNOWN, /* XK_Henkan_Mode */ NSFB_KEY_UNKNOWN, /* XK_Henkan */ NSFB_KEY_UNKNOWN, /* XK_Romaji */ NSFB_KEY_UNKNOWN, /* XK_Hiragana*/ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ /* 0x30 */ NSFB_KEY_UNKNOWN, /* XK_Eisu_toggle */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* XK_Codeinput */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* XK_SingleCandidate */ NSFB_KEY_UNKNOWN, /* XK_MultipleCandidate */ NSFB_KEY_UNKNOWN, /* XK_PreviousCandidate */ NSFB_KEY_UNKNOWN, /* */ /* 0x40 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ /* 0x50 */ NSFB_KEY_HOME, /* XK_Home */ NSFB_KEY_LEFT, /* XK_Left */ NSFB_KEY_UP, /* XK_Up */ NSFB_KEY_RIGHT, /* XK_Right */ NSFB_KEY_DOWN, /* XK_Down */ NSFB_KEY_PAGEUP, /* XK_Page_Up */ NSFB_KEY_PAGEDOWN, /* XK_Page_Down */ NSFB_KEY_END, /* XK_End */ NSFB_KEY_UNKNOWN, /* XK_Begin */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ /* 0x60 */ NSFB_KEY_UNKNOWN, /* XK_Select */ NSFB_KEY_UNKNOWN, /* XK_Print*/ NSFB_KEY_UNKNOWN, /* XK_Execute*/ NSFB_KEY_UNKNOWN, /* XK_Insert*/ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* XK_Undo*/ NSFB_KEY_UNKNOWN, /* XK_Redo */ NSFB_KEY_UNKNOWN, /* XK_Menu */ NSFB_KEY_UNKNOWN, /* XK_Find */ NSFB_KEY_UNKNOWN, /* XK_Cancel */ NSFB_KEY_UNKNOWN, /* XK_Help */ NSFB_KEY_UNKNOWN, /* XK_Break*/ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ /* 0x70 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* XK_Mode_switch */ NSFB_KEY_UNKNOWN, /* XK_Num_Lock */ /* 0x80 */ NSFB_KEY_UNKNOWN, /* XK_KP_Space */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* XK_KP_Tab */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* XK_KP_Enter */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ /* 0x90 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* XK_KP_F1*/ NSFB_KEY_UNKNOWN, /* XK_KP_F2*/ NSFB_KEY_UNKNOWN, /* XK_KP_F3*/ NSFB_KEY_UNKNOWN, /* XK_KP_F4*/ NSFB_KEY_UNKNOWN, /* XK_KP_Home*/ NSFB_KEY_UNKNOWN, /* XK_KP_Left*/ NSFB_KEY_UNKNOWN, /* XK_KP_Up*/ NSFB_KEY_UNKNOWN, /* XK_KP_Right*/ NSFB_KEY_UNKNOWN, /* XK_KP_Down*/ NSFB_KEY_UNKNOWN, /* XK_KP_Page_Up*/ NSFB_KEY_UNKNOWN, /* XK_KP_Page_Down*/ NSFB_KEY_UNKNOWN, /* XK_KP_End*/ NSFB_KEY_UNKNOWN, /* XK_KP_Begin*/ NSFB_KEY_UNKNOWN, /* XK_KP_Insert*/ NSFB_KEY_UNKNOWN, /* XK_KP_Delete*/ /* 0xa0 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* XK_KP_Multiply*/ NSFB_KEY_UNKNOWN, /* XK_KP_Add*/ NSFB_KEY_UNKNOWN, /* XK_KP_Separator*/ NSFB_KEY_UNKNOWN, /* XK_KP_Subtract*/ NSFB_KEY_UNKNOWN, /* XK_KP_Decimal*/ NSFB_KEY_UNKNOWN, /* XK_KP_Divide*/ /* 0xb0 */ NSFB_KEY_UNKNOWN, /* XK_KP_0 */ NSFB_KEY_UNKNOWN, /* XK_KP_1 */ NSFB_KEY_UNKNOWN, /* XK_KP_2 */ NSFB_KEY_UNKNOWN, /* XK_KP_3 */ NSFB_KEY_UNKNOWN, /* XK_KP_4 */ NSFB_KEY_UNKNOWN, /* XK_KP_5 */ NSFB_KEY_UNKNOWN, /* XK_KP_6 */ NSFB_KEY_UNKNOWN, /* XK_KP_7 */ NSFB_KEY_UNKNOWN, /* XK_KP_8 */ NSFB_KEY_UNKNOWN, /* XK_KP_9 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_F1, /* XK_F1 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* XK_KP_Equal */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_F2, /* XK_F2 */ /* 0xc0 */ NSFB_KEY_F3, /* XK_F3*/ NSFB_KEY_F4, /* XK_F4*/ NSFB_KEY_F5, /* XK_F5*/ NSFB_KEY_F6, /* XK_F6*/ NSFB_KEY_F7, /* XK_F7*/ NSFB_KEY_F8, /* XK_F8*/ NSFB_KEY_F9, /* XK_F9*/ NSFB_KEY_F10, /* XK_F10*/ NSFB_KEY_F11, /* XK_F11*/ NSFB_KEY_F12, /* XK_F12*/ NSFB_KEY_F13, /* XK_F13 */ NSFB_KEY_F14, /* XK_F14 */ NSFB_KEY_F15, /* XK_F15 */ NSFB_KEY_UNKNOWN, /* XK_F16 */ NSFB_KEY_UNKNOWN, /* XK_F17 */ NSFB_KEY_UNKNOWN, /* XK_F18*/ /* 0xd0 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ /* 0xe0 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_LSHIFT, /* XK_Shift_L*/ NSFB_KEY_RSHIFT, /* XK_Shift_R*/ NSFB_KEY_UNKNOWN, /* XK_Control_L*/ NSFB_KEY_UNKNOWN, /* XK_Control_R*/ NSFB_KEY_UNKNOWN, /* XK_Caps_Lock*/ NSFB_KEY_UNKNOWN, /* XK_Shift_Lock*/ NSFB_KEY_UNKNOWN, /* XK_Meta_L*/ NSFB_KEY_UNKNOWN, /* XK_Meta_R*/ NSFB_KEY_UNKNOWN, /* XK_Alt_L */ NSFB_KEY_UNKNOWN, /* XK_Alt_R*/ NSFB_KEY_UNKNOWN, /* XK_Super_L*/ NSFB_KEY_UNKNOWN, /* XK_Super_R*/ NSFB_KEY_UNKNOWN, /* XK_Hyper_L*/ NSFB_KEY_UNKNOWN, /* XK_Hyper_R*/ NSFB_KEY_UNKNOWN, /* */ /* 0xf0 */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ NSFB_KEY_UNKNOWN, /* */ }; /* Convert an X keysym into a nsfb key code. * * Our approach is primarily to assume both codings are roughly ascii like. * * The Keysyms are defined in X11/keysymdef.h and our mapping for the * "keyboard" keys i.e. those from code set 255 is from there */ static enum nsfb_key_code_e xkeysym_to_nsfbkeycode(xcb_keysym_t ks) { enum nsfb_key_code_e nsfb_key = NSFB_KEY_UNKNOWN; uint8_t codeset = (ks & 0xFF00) >> 8; uint8_t chrcode = ks & 0xFF; if (ks != XCB_NO_SYMBOL) { switch (codeset) { case 0x00: /* Latin 1 */ case 0x01: /* Latin 2 */ case 0x02: /* Latin 3 */ case 0x03: /* Latin 4 */ case 0x04: /* Katakana */ case 0x05: /* Arabic */ case 0x06: /* Cyrillic */ case 0x07: /* Greek */ case 0x08: /* Technical */ case 0x0A: /* Publishing */ case 0x0C: /* Hebrew */ case 0x0D: /* Thai */ /* this is somewhat incomplete, but the nsfb codes are lined up on * the ascii codes and x seems to have done similar */ nsfb_key = (enum nsfb_key_code_e)chrcode; break; case 0xFF: /* Keyboard */ nsfb_key = XCSKeyboardMap[chrcode]; break; } } return nsfb_key; } /* static void set_palette(nsfb_t *nsfb) { X_Surface *x_screen = nsfb->surface_priv; X_Color palette[256]; int rloop, gloop, bloop; int loop = 0; // build a linear R:3 G:3 B:2 colour cube palette. for (rloop = 0; rloop < 8; rloop++) { for (gloop = 0; gloop < 8; gloop++) { for (bloop = 0; bloop < 4; bloop++) { palette[loop].r = (rloop << 5) | (rloop << 2) | (rloop >> 1); palette[loop].g = (gloop << 5) | (gloop << 2) | (gloop >> 1); palette[loop].b = (bloop << 6) | (bloop << 4) | (bloop << 2) | (bloop); nsfb->palette[loop] = palette[loop].r | palette[loop].g << 8 | palette[loop].b << 16; loop++; } } } // Set palette //X_SetColors(x_screen, palette, 0, 256); } */ static int update_pixmap(xstate_t *xstate, int x, int y, int width, int height) { if (xstate->shminfo.shmseg == 0) { /* not using shared memory */ xcb_put_image(xstate->connection, xstate->image->format, xstate->pmap, xstate->gc, xstate->image->width, height, 0, y, 0, xstate->image->depth, (height) * xstate->image->stride, xstate->image->data + (y * xstate->image->stride)); } else { /* shared memory */ xcb_image_shm_put(xstate->connection, xstate->pmap, xstate->gc, xstate->image, xstate->shminfo, x,y, x,y, width,height,0); } return 0; } static int update_and_redraw_pixmap(xstate_t *xstate, int x, int y, int width, int height) { update_pixmap(xstate, x, y, width, height); xcb_copy_area(xstate->connection, xstate->pmap, xstate->window, xstate->gc, x, y, x, y, width, height); xcb_flush(xstate->connection); return 0; } static bool xcopy(nsfb_t *nsfb, nsfb_bbox_t *srcbox, nsfb_bbox_t *dstbox) { xstate_t *xstate = nsfb->surface_priv; nsfb_bbox_t allbox; struct nsfb_cursor_s *cursor = nsfb->cursor; uint8_t *srcptr; uint8_t *dstptr; int srcx = srcbox->x0; int srcy = srcbox->y0; int dstx = dstbox->x0; int dsty = dstbox->y0; int width = dstbox->x1 - dstbox->x0; int height = dstbox->y1 - dstbox->y0; int hloop; nsfb_plot_add_rect(srcbox, dstbox, &allbox); /* clear the cursor if its within the region to be altered */ if ((cursor != NULL) && (cursor->plotted == true) && (nsfb_plot_bbox_intersect(&allbox, &cursor->loc))) { nsfb_cursor_clear(nsfb, cursor); update_pixmap(xstate, cursor->savloc.x0, cursor->savloc.y0, cursor->savloc.x1 - cursor->savloc.x0, cursor->savloc.y1 - cursor->savloc.y0); /* must sync here or local framebuffer and remote pixmap will not be * consistant */ xcb_aux_sync(xstate->connection); } /* copy the area on the server */ xcb_copy_area(xstate->connection, xstate->pmap, xstate->pmap, xstate->gc, srcbox->x0, srcbox->y0, dstbox->x0, dstbox->y0, srcbox->x1 - srcbox->x0, srcbox->y1 - srcbox->y0); /* do the copy in the local memory too */ srcptr = (nsfb->ptr + (srcy * nsfb->linelen) + ((srcx * nsfb->bpp) / 8)); dstptr = (nsfb->ptr + (dsty * nsfb->linelen) + ((dstx * nsfb->bpp) / 8)); if (width == nsfb->width) { /* take shortcut and use memmove */ memmove(dstptr, srcptr, (width * height * nsfb->bpp) / 8); } else { if (srcy > dsty) { for (hloop = height; hloop > 0; hloop--) { memmove(dstptr, srcptr, (width * nsfb->bpp) / 8); srcptr += nsfb->linelen; dstptr += nsfb->linelen; } } else { srcptr += height * nsfb->linelen; dstptr += height * nsfb->linelen; for (hloop = height; hloop > 0; hloop--) { srcptr -= nsfb->linelen; dstptr -= nsfb->linelen; memmove(dstptr, srcptr, (width * nsfb->bpp) / 8); } } } if ((cursor != NULL) && (cursor->plotted == false)) { nsfb_cursor_plot(nsfb, cursor); } /* update the x window */ xcb_copy_area(xstate->connection, xstate->pmap, xstate->window, xstate->gc, dstx, dsty, dstx, dsty, width, height); return true; } static int x_set_geometry(nsfb_t *nsfb, int width, int height, enum nsfb_format_e format) { if (nsfb->surface_priv != NULL) return -1; /* if were already initialised fail */ nsfb->width = width; nsfb->height = height; nsfb->format = format; /* select default sw plotters for format */ select_plotters(nsfb); nsfb->plotter_fns->copy = xcopy; return 0; } static xcb_format_t * find_format(xcb_connection_t * c, uint8_t depth, uint8_t bpp) { const xcb_setup_t *setup = xcb_get_setup(c); xcb_format_t *fmt = xcb_setup_pixmap_formats(setup); xcb_format_t *fmtend = fmt + xcb_setup_pixmap_formats_length(setup); for(; fmt != fmtend; ++fmt) { if((fmt->depth == depth) && (fmt->bits_per_pixel == bpp)) { return fmt; } } return 0; } static xcb_image_t * create_shm_image(xstate_t *xstate, int width, int height, int bpp) { const xcb_setup_t *setup = xcb_get_setup(xstate->connection); unsigned char *image_data; xcb_format_t *fmt; int depth = bpp; uint32_t image_size; int shmid; xcb_shm_query_version_reply_t *rep; xcb_shm_query_version_cookie_t ck; xcb_void_cookie_t shm_attach_cookie; xcb_generic_error_t *generic_error; ck = xcb_shm_query_version(xstate->connection); rep = xcb_shm_query_version_reply(xstate->connection, ck , NULL); if (!rep) { fprintf (stderr, "Server has no shm support.\n"); return NULL; } if ((rep->major_version < 1) || (rep->major_version == 1 && rep->minor_version == 0)) { fprintf(stderr, "server SHM support is insufficient.\n"); free(rep); return NULL; } free(rep); if (bpp == 32) depth = 24; fmt = find_format(xstate->connection, depth, bpp); if (fmt == NULL) return NULL; /* doing it this way ensures we deal with bpp smaller than 8 */ image_size = (bpp * width * height) >> 3; /* get the shared memory segment */ shmid = shmget(IPC_PRIVATE, image_size, IPC_CREAT|0777); if (shmid == -1) return NULL; xstate->shminfo.shmid = shmid; xstate->shminfo.shmaddr = shmat(xstate->shminfo.shmid, 0, 0); image_data = xstate->shminfo.shmaddr; xstate->shminfo.shmseg = xcb_generate_id(xstate->connection); shm_attach_cookie = xcb_shm_attach_checked(xstate->connection, xstate->shminfo.shmseg, xstate->shminfo.shmid, 0); generic_error = xcb_request_check(xstate->connection, shm_attach_cookie); /* either there is an error and the shm us no longer needed, or it now * belongs to the x server - regardless release local reference to shared * memory segment */ shmctl(xstate->shminfo.shmid, IPC_RMID, 0); if (generic_error != NULL) { /* unable to attach shm */ xstate->shminfo.shmseg = 0; free(generic_error); return NULL; } return xcb_image_create(width, height, XCB_IMAGE_FORMAT_Z_PIXMAP, fmt->scanline_pad, fmt->depth, fmt->bits_per_pixel, 0, setup->image_byte_order, XCB_IMAGE_ORDER_LSB_FIRST, image_data, image_size, image_data); } static xcb_image_t * create_image(xcb_connection_t *c, int width, int height, int bpp) { const xcb_setup_t *setup = xcb_get_setup(c); unsigned char *image_data; xcb_format_t *fmt; int depth = bpp; uint32_t image_size; if (bpp == 32) depth = 24; fmt = find_format(c, depth, bpp); if (fmt == NULL) return NULL; /* doing it this way ensures we deal with bpp smaller than 8 */ image_size = (bpp * width * height) >> 3; image_data = calloc(1, image_size); if (image_data == NULL) return NULL; return xcb_image_create(width, height, XCB_IMAGE_FORMAT_Z_PIXMAP, fmt->scanline_pad, fmt->depth, fmt->bits_per_pixel, 0, setup->image_byte_order, XCB_IMAGE_ORDER_LSB_FIRST, image_data, image_size, image_data); } /** * Create a blank cursor. * The empty pixmaps is leaked. * * @param conn xcb connection * @param scr xcb XCB screen */ static xcb_cursor_t create_blank_cursor(xcb_connection_t *conn, const xcb_screen_t *scr) { xcb_cursor_t cur = xcb_generate_id(conn); xcb_pixmap_t pix = xcb_generate_id(conn); xcb_void_cookie_t ck; xcb_generic_error_t *err; ck = xcb_create_pixmap_checked (conn, 1, pix, scr->root, 1, 1); err = xcb_request_check (conn, ck); if (err) { fprintf (stderr, "Cannot create pixmap: %d", err->error_code); free (err); } ck = xcb_create_cursor_checked (conn, cur, pix, pix, 0, 0, 0, 0, 0, 0, 0, 0); err = xcb_request_check (conn, ck); if (err) { fprintf (stderr, "Cannot create cursor: %d", err->error_code); free (err); } return cur; } static int x_initialise(nsfb_t *nsfb) { uint32_t mask; uint32_t values[3]; xcb_size_hints_t *hints; xstate_t *xstate = nsfb->surface_priv; xcb_cursor_t blank_cursor; if (xstate != NULL) return -1; /* already initialised */ /* sanity check bpp. */ if ((nsfb->bpp != 32) && (nsfb->bpp != 16) && (nsfb->bpp != 8)) return -1; xstate = calloc(1, sizeof(xstate_t)); if (xstate == NULL) return -1; /* no memory */ /* open connection with the server */ xstate->connection = xcb_connect(NULL, NULL); if (xstate->connection == NULL) { fprintf(stderr, "Memory error opening display\n"); free(xstate); return -1; /* no memory */ } if (xcb_connection_has_error(xstate->connection) != 0) { fprintf(stderr, "Error opening display\n"); free(xstate); return -1; /* no memory */ } /* get screen */ xstate->screen = xcb_setup_roots_iterator(xcb_get_setup(xstate->connection)).data; /* create image */ xstate->image = create_shm_image(xstate, nsfb->width, nsfb->height, nsfb->bpp); if (xstate->image == NULL) xstate->image = create_image(xstate->connection, nsfb->width, nsfb->height, nsfb->bpp); if (xstate->image == NULL) { fprintf(stderr, "Unable to create image\n"); free(xstate); xcb_disconnect(xstate->connection); return -1; } /* ensure plotting information is stored */ nsfb->surface_priv = xstate; nsfb->ptr = xstate->image->data; nsfb->linelen = xstate->image->stride; /* get blank cursor */ blank_cursor = create_blank_cursor(xstate->connection, xstate->screen); /* get keysymbol maps */ xstate->keysymbols = xcb_key_symbols_alloc(xstate->connection); /* create window */ mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK | XCB_CW_CURSOR; values[0] = xstate->screen->white_pixel; values[1] = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE | XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION; values[2] = blank_cursor; xstate->window = xcb_generate_id(xstate->connection); xcb_create_window (xstate->connection, XCB_COPY_FROM_PARENT, xstate->window, xstate->screen->root, 0, 0, xstate->image->width, xstate->image->height, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT, xstate->screen->root_visual, mask, values); /* set size hits on window */ hints = xcb_alloc_size_hints(); xcb_size_hints_set_max_size(hints, xstate->image->width, xstate->image->height); xcb_size_hints_set_min_size(hints, xstate->image->width, xstate->image->height); xcb_set_wm_size_hints(xstate->connection, xstate->window, WM_NORMAL_HINTS, hints); xcb_free_size_hints(hints); /* create backing pixmap */ xstate->pmap = xcb_generate_id(xstate->connection); xcb_create_pixmap(xstate->connection, 24, xstate->pmap, xstate->window, xstate->image->width, xstate->image->height); /* create pixmap plot gc */ mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND; values[0] = xstate->screen->black_pixel; values[1] = 0xffffff; xstate->gc = xcb_generate_id (xstate->connection); xcb_create_gc(xstate->connection, xstate->gc, xstate->pmap, mask, values); /* if (nsfb->bpp == 8) set_palette(nsfb); */ /* put the image into the pixmap */ update_and_redraw_pixmap(xstate, 0, 0, xstate->image->width, xstate->image->height); /* show the window */ xcb_map_window (xstate->connection, xstate->window); xcb_flush(xstate->connection); return 0; } static int x_finalise(nsfb_t *nsfb) { xstate_t *xstate = nsfb->surface_priv; if (xstate == NULL) return 0; xcb_key_symbols_free(xstate->keysymbols); /* free pixmap */ xcb_free_pixmap(xstate->connection, xstate->pmap); /* close connection to server */ xcb_disconnect(xstate->connection); return 0; } static bool x_input(nsfb_t *nsfb, nsfb_event_t *event, int timeout) { xcb_generic_event_t *e; xcb_expose_event_t *ee; xcb_motion_notify_event_t *emn; xcb_button_press_event_t *ebp; xcb_key_press_event_t *ekp; xcb_key_press_event_t *ekr; xstate_t *xstate = nsfb->surface_priv; if (xstate == NULL) return false; xcb_flush(xstate->connection); /* try and retrive an event immediately */ e = xcb_poll_for_event(xstate->connection); if ((e == NULL) && (timeout != 0)) { if (timeout > 0) { int confd; fd_set rfds; struct timeval tv; int retval; confd = xcb_get_file_descriptor(xstate->connection); FD_ZERO(&rfds); FD_SET(confd, &rfds); tv.tv_sec = timeout / 1000; tv.tv_usec = timeout % 1000; retval = select(confd + 1, &rfds, NULL, NULL, &tv); if (retval == 0) { /* timeout, nothing happened */ event->type = NSFB_EVENT_CONTROL; event->value.controlcode = NSFB_CONTROL_TIMEOUT; return true; } } e = xcb_wait_for_event(xstate->connection); } if (e == NULL) { if (xcb_connection_has_error(xstate->connection) != 0) { /* connection closed quiting time */ event->type = NSFB_EVENT_CONTROL; event->value.controlcode = NSFB_CONTROL_QUIT; return true; } else { return false; /* no event */ } } event->type = NSFB_EVENT_NONE; switch (e->response_type) { case XCB_EXPOSE: ee = (xcb_expose_event_t *)e; xcb_copy_area(xstate->connection, xstate->pmap, xstate->window, xstate->gc, ee->x, ee->y, ee->x, ee->y, ee->width, ee->height); xcb_flush (xstate->connection); break; case XCB_MOTION_NOTIFY: emn = (xcb_motion_notify_event_t *)e; event->type = NSFB_EVENT_MOVE_ABSOLUTE; event->value.vector.x = emn->event_x; event->value.vector.y = emn->event_y; event->value.vector.z = 0; break; case XCB_BUTTON_PRESS: ebp = (xcb_button_press_event_t *)e; event->type = NSFB_EVENT_KEY_DOWN; switch (ebp->detail) { case X_BUTTON_LEFT: event->value.keycode = NSFB_KEY_MOUSE_1; break; case X_BUTTON_MIDDLE: event->value.keycode = NSFB_KEY_MOUSE_2; break; case X_BUTTON_RIGHT: event->value.keycode = NSFB_KEY_MOUSE_3; break; case X_BUTTON_WHEELUP: event->value.keycode = NSFB_KEY_MOUSE_4; break; case X_BUTTON_WHEELDOWN: event->value.keycode = NSFB_KEY_MOUSE_5; break; } break; case XCB_BUTTON_RELEASE: ebp = (xcb_button_press_event_t *)e; event->type = NSFB_EVENT_KEY_UP; switch (ebp->detail) { case X_BUTTON_LEFT: event->value.keycode = NSFB_KEY_MOUSE_1; break; case X_BUTTON_MIDDLE: event->value.keycode = NSFB_KEY_MOUSE_2; break; case X_BUTTON_RIGHT: event->value.keycode = NSFB_KEY_MOUSE_3; break; case X_BUTTON_WHEELUP: event->value.keycode = NSFB_KEY_MOUSE_4; break; case X_BUTTON_WHEELDOWN: event->value.keycode = NSFB_KEY_MOUSE_5; break; } break; case XCB_KEY_PRESS: ekp = (xcb_key_press_event_t *)e; event->type = NSFB_EVENT_KEY_DOWN; event->value.keycode = xkeysym_to_nsfbkeycode(xcb_key_symbols_get_keysym(xstate->keysymbols, ekp->detail, 0)); break; case XCB_KEY_RELEASE: ekr = (xcb_key_release_event_t *)e; event->type = NSFB_EVENT_KEY_UP; event->value.keycode = xkeysym_to_nsfbkeycode(xcb_key_symbols_get_keysym(xstate->keysymbols, ekr->detail, 0)); break; } free(e); return true; } static int x_claim(nsfb_t *nsfb, nsfb_bbox_t *box) { struct nsfb_cursor_s *cursor = nsfb->cursor; if ((cursor != NULL) && (cursor->plotted == true) && (nsfb_plot_bbox_intersect(box, &cursor->loc))) { nsfb_cursor_clear(nsfb, cursor); } return 0; } static int x_cursor(nsfb_t *nsfb, struct nsfb_cursor_s *cursor) { xstate_t *xstate = nsfb->surface_priv; nsfb_bbox_t redraw; nsfb_bbox_t fbarea; if ((cursor != NULL) && (cursor->plotted == true)) { nsfb_plot_add_rect(&cursor->savloc, &cursor->loc, &redraw); /* screen area */ fbarea.x0 = 0; fbarea.y0 = 0; fbarea.x1 = nsfb->width; fbarea.y1 = nsfb->height; nsfb_plot_clip(&fbarea, &redraw); nsfb_cursor_clear(nsfb, cursor); nsfb_cursor_plot(nsfb, cursor); /* TODO: This is hediously ineficient - should keep the pointer image * as a pixmap and plot server side */ update_and_redraw_pixmap(xstate, redraw.x0, redraw.y0, redraw.x1 - redraw.x0, redraw.y1 - redraw.y0); } return true; } static int x_update(nsfb_t *nsfb, nsfb_bbox_t *box) { xstate_t *xstate = nsfb->surface_priv; struct nsfb_cursor_s *cursor = nsfb->cursor; if ((cursor != NULL) && (cursor->plotted == false)) { nsfb_cursor_plot(nsfb, cursor); } update_and_redraw_pixmap(xstate, box->x0, box->y0, box->x1 - box->x0, box->y1 - box->y0); return 0; } const nsfb_surface_rtns_t x_rtns = { .initialise = x_initialise, .finalise = x_finalise, .input = x_input, .claim = x_claim, .update = x_update, .cursor = x_cursor, .geometry = x_set_geometry, }; NSFB_SURFACE_DEF(x, NSFB_SURFACE_X, &x_rtns) /* * Local variables: * c-basic-offset: 4 * tab-width: 8 * End: */