/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ /* * Copyright © 2004,2006 Red Hat, Inc. * * Permission to use, copy, modify, distribute, and sell this software * and its documentation for any purpose is hereby granted without * fee, provided that the above copyright notice appear in all copies * and that both that copyright notice and this permission notice * appear in supporting documentation, and that the name of * Red Hat, Inc. not be used in advertising or publicity pertaining to * distribution of the software without specific, written prior * permission. Red Hat, Inc. makes no representations about the * suitability of this software for any purpose. It is provided "as * is" without express or implied warranty. * * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * * Author: Carl D. Worth */ #include "cairo-boilerplate-private.h" #include #include /* Errors have response_type == 0 */ #define CAIRO_XCB_ERROR 0 static const cairo_user_data_key_t xcb_closure_key; typedef struct _xcb_target_closure { xcb_connection_t *c; cairo_device_t *device; uint32_t drawable; cairo_bool_t is_pixmap; cairo_surface_t *surface; } xcb_target_closure_t; static cairo_status_t _cairo_boilerplate_xcb_handle_errors (xcb_target_closure_t *xtc) { xcb_generic_event_t *ev; if ((ev = xcb_poll_for_event (xtc->c)) != NULL) { if (ev->response_type == CAIRO_XCB_ERROR) { xcb_generic_error_t *error = (xcb_generic_error_t *) ev; #if XCB_GENERIC_ERROR_HAS_MAJOR_MINOR_CODES fprintf (stderr, "Detected error during xcb run: %d major=%d, minor=%d\n", error->error_code, error->major_code, error->minor_code); #else fprintf (stderr, "Detected error during xcb run: %d\n", error->error_code); #endif } else { fprintf (stderr, "Detected unexpected event during xcb run: %d\n", ev->response_type); } free (ev); /* Silently discard all following errors */ while ((ev = xcb_poll_for_event (xtc->c)) != NULL) free (ev); return CAIRO_STATUS_WRITE_ERROR; } return CAIRO_STATUS_SUCCESS; } static void _cairo_boilerplate_xcb_sync_server (xcb_target_closure_t *xtc) { free (xcb_get_input_focus_reply (xtc->c, xcb_get_input_focus (xtc->c), NULL)); } static void _cairo_boilerplate_xcb_cleanup (void *closure) { xcb_target_closure_t *xtc = closure; cairo_status_t status; cairo_surface_finish (xtc->surface); if (xtc->is_pixmap) xcb_free_pixmap (xtc->c, xtc->drawable); else xcb_destroy_window (xtc->c, xtc->drawable); cairo_surface_destroy (xtc->surface); cairo_device_finish (xtc->device); cairo_device_destroy (xtc->device); /* First synchronize with the X server to make sure there are no more errors * in-flight which we would miss otherwise */ _cairo_boilerplate_xcb_sync_server (xtc); status = _cairo_boilerplate_xcb_handle_errors (xtc); assert (status == CAIRO_STATUS_SUCCESS); xcb_disconnect (xtc->c); free (xtc); } static void _cairo_boilerplate_xcb_synchronize (void *closure) { xcb_target_closure_t *xtc = closure; cairo_status_t status; free (xcb_get_image_reply (xtc->c, xcb_get_image (xtc->c, XCB_IMAGE_FORMAT_Z_PIXMAP, xtc->drawable, 0, 0, 1, 1, /* AllPlanes */ -1), 0)); status = _cairo_boilerplate_xcb_handle_errors (xtc); assert (status == CAIRO_STATUS_SUCCESS); } static xcb_render_pictforminfo_t * find_depth (xcb_connection_t *connection, int depth, void **formats_out) { xcb_render_query_pict_formats_reply_t *formats; xcb_render_query_pict_formats_cookie_t cookie; xcb_render_pictforminfo_iterator_t i; cookie = xcb_render_query_pict_formats (connection); xcb_flush (connection); formats = xcb_render_query_pict_formats_reply (connection, cookie, 0); if (formats == NULL) return NULL; for (i = xcb_render_query_pict_formats_formats_iterator (formats); i.rem; xcb_render_pictforminfo_next (&i)) { if (XCB_RENDER_PICT_TYPE_DIRECT != i.data->type) continue; if (depth != i.data->depth) continue; *formats_out = formats; return i.data; } free (formats); return NULL; } static cairo_surface_t * _cairo_boilerplate_xcb_create_surface (const char *name, cairo_content_t content, double width, double height, double max_width, double max_height, cairo_boilerplate_mode_t mode, int id, void **closure) { xcb_screen_t *root; xcb_target_closure_t *xtc; xcb_connection_t *c; xcb_render_pictforminfo_t *render_format; int depth; xcb_void_cookie_t cookie; cairo_surface_t *surface; cairo_status_t status; void *formats; *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); if (width == 0) width = 1; if (height == 0) height = 1; xtc->c = c = xcb_connect(NULL,NULL); if (c == NULL || xcb_connection_has_error(c)) { free (xtc); return NULL; } root = xcb_setup_roots_iterator(xcb_get_setup(c)).data; xtc->surface = NULL; xtc->is_pixmap = TRUE; xtc->drawable = xcb_generate_id (c); switch (content) { case CAIRO_CONTENT_COLOR: depth = 24; cookie = xcb_create_pixmap_checked (c, depth, xtc->drawable, root->root, width, height); break; case CAIRO_CONTENT_COLOR_ALPHA: depth = 32; cookie = xcb_create_pixmap_checked (c, depth, xtc->drawable, root->root, width, height); break; case CAIRO_CONTENT_ALPHA: /* would be XCB_PICT_STANDARD_A_8 */ default: xcb_disconnect (c); free (xtc); return NULL; } /* slow, but sure */ if (xcb_request_check (c, cookie) != NULL) { xcb_disconnect (c); free (xtc); return NULL; } render_format = find_depth (c, depth, &formats); if (render_format == NULL) { xcb_disconnect (c); free (xtc); return NULL; } surface = cairo_xcb_surface_create_with_xrender_format (c, root, xtc->drawable, render_format, width, height); free (formats); xtc->device = cairo_device_reference (cairo_surface_get_device (surface)); status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); if (status == CAIRO_STATUS_SUCCESS) return surface; cairo_surface_destroy (surface); _cairo_boilerplate_xcb_cleanup (xtc); return cairo_boilerplate_surface_create_in_error (status); } static xcb_visualtype_t * lookup_visual (xcb_screen_t *s, xcb_visualid_t visual) { xcb_depth_iterator_t d; d = xcb_screen_allowed_depths_iterator (s); for (; d.rem; xcb_depth_next (&d)) { xcb_visualtype_iterator_t v = xcb_depth_visuals_iterator (d.data); for (; v.rem; xcb_visualtype_next (&v)) { if (v.data->visual_id == visual) return v.data; } } return 0; } static cairo_surface_t * _cairo_boilerplate_xcb_create_window (const char *name, cairo_content_t content, double width, double height, double max_width, double max_height, cairo_boilerplate_mode_t mode, int id, void **closure) { xcb_target_closure_t *xtc; xcb_connection_t *c; xcb_screen_t *s; xcb_void_cookie_t cookie; cairo_surface_t *surface; cairo_status_t status; uint32_t values[] = { 1 }; *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); if (width == 0) width = 1; if (height == 0) height = 1; xtc->c = c = xcb_connect(NULL,NULL); if (xcb_connection_has_error(c)) { free (xtc); return NULL; } xtc->surface = NULL; s = xcb_setup_roots_iterator (xcb_get_setup (c)).data; if (width > s->width_in_pixels || height > s->height_in_pixels) { xcb_disconnect (c); free (xtc); return NULL; } xtc->is_pixmap = FALSE; xtc->drawable = xcb_generate_id (c); cookie = xcb_create_window_checked (c, s->root_depth, xtc->drawable, s->root, 0, 0, width, height, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, s->root_visual, XCB_CW_OVERRIDE_REDIRECT, values); xcb_map_window (c, xtc->drawable); /* slow, but sure */ if (xcb_request_check (c, cookie) != NULL) { xcb_disconnect (c); free (xtc); return NULL; } surface = cairo_xcb_surface_create (c, xtc->drawable, lookup_visual (s, s->root_visual), width, height); xtc->device = cairo_device_reference (cairo_surface_get_device (surface)); status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); if (status == CAIRO_STATUS_SUCCESS) return surface; cairo_surface_destroy (surface); _cairo_boilerplate_xcb_cleanup (xtc); return cairo_boilerplate_surface_create_in_error (status); } static cairo_surface_t * _cairo_boilerplate_xcb_create_window_db (const char *name, cairo_content_t content, double width, double height, double max_width, double max_height, cairo_boilerplate_mode_t mode, int id, void **closure) { xcb_target_closure_t *xtc; xcb_connection_t *c; xcb_screen_t *s; xcb_void_cookie_t cookie; cairo_surface_t *surface; cairo_status_t status; uint32_t values[] = { 1 }; *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); if (width == 0) width = 1; if (height == 0) height = 1; xtc->c = c = xcb_connect(NULL,NULL); if (xcb_connection_has_error(c)) { free (xtc); return NULL; } xtc->surface = NULL; s = xcb_setup_roots_iterator (xcb_get_setup (c)).data; if (width > s->width_in_pixels || height > s->height_in_pixels) { xcb_disconnect (c); free (xtc); return NULL; } xtc->is_pixmap = FALSE; xtc->drawable = xcb_generate_id (c); cookie = xcb_create_window_checked (c, s->root_depth, xtc->drawable, s->root, 0, 0, width, height, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, s->root_visual, XCB_CW_OVERRIDE_REDIRECT, values); xcb_map_window (c, xtc->drawable); /* slow, but sure */ if (xcb_request_check (c, cookie) != NULL) { xcb_disconnect (c); free (xtc); return NULL; } xtc->surface = cairo_xcb_surface_create (c, xtc->drawable, lookup_visual (s, s->root_visual), width, height); surface = cairo_surface_create_similar (xtc->surface, content, width, height); xtc->device = cairo_device_reference (cairo_surface_get_device (surface)); status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); if (status == CAIRO_STATUS_SUCCESS) return surface; cairo_surface_destroy (surface); _cairo_boilerplate_xcb_cleanup (xtc); return cairo_boilerplate_surface_create_in_error (status); } static cairo_surface_t * _cairo_boilerplate_xcb_create_render_0_0 (const char *name, cairo_content_t content, double width, double height, double max_width, double max_height, cairo_boilerplate_mode_t mode, int id, void **closure) { xcb_screen_t *root; xcb_target_closure_t *xtc; xcb_connection_t *c; xcb_render_pictforminfo_t *render_format; int depth; xcb_void_cookie_t cookie; cairo_surface_t *surface, *tmp; cairo_status_t status; void *formats; *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); if (width == 0) width = 1; if (height == 0) height = 1; xtc->c = c = xcb_connect(NULL,NULL); if (xcb_connection_has_error(c)) { free (xtc); return NULL; } root = xcb_setup_roots_iterator(xcb_get_setup(c)).data; xtc->surface = NULL; xtc->is_pixmap = TRUE; xtc->drawable = xcb_generate_id (c); switch (content) { case CAIRO_CONTENT_COLOR: depth = 24; cookie = xcb_create_pixmap_checked (c, depth, xtc->drawable, root->root, width, height); break; case CAIRO_CONTENT_COLOR_ALPHA: depth = 32; cookie = xcb_create_pixmap_checked (c, depth, xtc->drawable, root->root, width, height); break; case CAIRO_CONTENT_ALPHA: /* would be XCB_PICT_STANDARD_A_8 */ default: xcb_disconnect (c); free (xtc); return NULL; } /* slow, but sure */ if (xcb_request_check (c, cookie) != NULL) { xcb_disconnect (c); free (xtc); return NULL; } render_format = find_depth (c, depth, &formats); if (render_format == NULL) { xcb_disconnect (c); free (xtc); return NULL; } tmp = cairo_xcb_surface_create_with_xrender_format (c, root, xtc->drawable, render_format, width, height); if (cairo_surface_status (tmp)) { free (formats); xcb_disconnect (c); free (xtc); return tmp; } xtc->device = cairo_device_reference (cairo_surface_get_device (tmp)); cairo_xcb_device_debug_cap_xrender_version (xtc->device, 0, 0); /* recreate with impaired connection */ surface = cairo_xcb_surface_create_with_xrender_format (c, root, xtc->drawable, render_format, width, height); free (formats); cairo_surface_destroy (tmp); assert (cairo_surface_get_device (surface) == xtc->device); status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); if (status == CAIRO_STATUS_SUCCESS) return surface; cairo_surface_destroy (surface); _cairo_boilerplate_xcb_cleanup (xtc); return cairo_boilerplate_surface_create_in_error (status); } static cairo_surface_t * _cairo_boilerplate_xcb_create_fallback (const char *name, cairo_content_t content, double width, double height, double max_width, double max_height, cairo_boilerplate_mode_t mode, int id, void **closure) { xcb_target_closure_t *xtc; xcb_connection_t *c; xcb_screen_t *s; xcb_void_cookie_t cookie; cairo_surface_t *tmp, *surface; cairo_status_t status; uint32_t values[] = { 1 }; *closure = xtc = xmalloc (sizeof (xcb_target_closure_t)); if (width == 0) width = 1; if (height == 0) height = 1; xtc->c = c = xcb_connect (NULL,NULL); if (xcb_connection_has_error(c)) { free (xtc); return NULL; } s = xcb_setup_roots_iterator (xcb_get_setup (c)).data; if (width > s->width_in_pixels || height > s->height_in_pixels) { xcb_disconnect (c); free (xtc); return NULL; } xtc->surface = NULL; xtc->is_pixmap = FALSE; xtc->drawable = xcb_generate_id (c); cookie = xcb_create_window_checked (c, s->root_depth, xtc->drawable, s->root, 0, 0, width, height, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, s->root_visual, XCB_CW_OVERRIDE_REDIRECT, values); xcb_map_window (c, xtc->drawable); /* slow, but sure */ if (xcb_request_check (c, cookie) != NULL) { xcb_disconnect (c); free (xtc); return NULL; } tmp = cairo_xcb_surface_create (c, xtc->drawable, lookup_visual (s, s->root_visual), width, height); if (cairo_surface_status (tmp)) { xcb_disconnect (c); free (xtc); return tmp; } cairo_xcb_device_debug_cap_xrender_version (cairo_surface_get_device (tmp), -1, -1); /* recreate with impaired connection */ surface = cairo_xcb_surface_create (c, xtc->drawable, lookup_visual (s, s->root_visual), width, height); cairo_surface_destroy (tmp); xtc->device = cairo_device_reference (cairo_surface_get_device (surface)); status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL); if (status == CAIRO_STATUS_SUCCESS) return surface; cairo_surface_destroy (surface); _cairo_boilerplate_xcb_cleanup (xtc); return cairo_boilerplate_surface_create_in_error (status); } static cairo_status_t _cairo_boilerplate_xcb_finish_surface (cairo_surface_t *surface) { xcb_target_closure_t *xtc = cairo_surface_get_user_data (surface, &xcb_closure_key); cairo_status_t status; if (xtc->surface != NULL) { cairo_t *cr; cr = cairo_create (xtc->surface); cairo_surface_set_device_offset (surface, 0, 0); cairo_set_source_surface (cr, surface, 0, 0); cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); cairo_paint (cr); cairo_destroy (cr); surface = xtc->surface; } cairo_surface_flush (surface); if (cairo_surface_status (surface)) return cairo_surface_status (surface); /* First synchronize with the X server to make sure there are no more errors * in-flight which we would miss otherwise */ _cairo_boilerplate_xcb_sync_server (xtc); status = _cairo_boilerplate_xcb_handle_errors (xtc); if (status) return status; if (xcb_connection_has_error (xtc->c)) return CAIRO_STATUS_WRITE_ERROR; return CAIRO_STATUS_SUCCESS; } static const cairo_boilerplate_target_t targets[] = { /* Acceleration architectures may make the results differ by a * bit, so we set the error tolerance to 1. */ { "xcb", "xlib", NULL, NULL, CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR_ALPHA, 1, "cairo_xcb_surface_create_with_xrender_format", _cairo_boilerplate_xcb_create_surface, NULL, _cairo_boilerplate_xcb_finish_surface, _cairo_boilerplate_get_image_surface, cairo_surface_write_to_png, _cairo_boilerplate_xcb_cleanup, _cairo_boilerplate_xcb_synchronize, NULL, TRUE, FALSE, FALSE }, { "xcb", "xlib", NULL, NULL, CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, "cairo_xcb_surface_create_with_xrender_format", _cairo_boilerplate_xcb_create_surface, NULL, _cairo_boilerplate_xcb_finish_surface, _cairo_boilerplate_get_image_surface, cairo_surface_write_to_png, _cairo_boilerplate_xcb_cleanup, _cairo_boilerplate_xcb_synchronize, NULL, FALSE, FALSE, FALSE }, { "xcb-window", "xlib", NULL, NULL, CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, "cairo_xcb_surface_create_with_xrender_format", _cairo_boilerplate_xcb_create_window, NULL, _cairo_boilerplate_xcb_finish_surface, _cairo_boilerplate_get_image_surface, cairo_surface_write_to_png, _cairo_boilerplate_xcb_cleanup, _cairo_boilerplate_xcb_synchronize, NULL, FALSE, FALSE, FALSE }, { "xcb-window&", "xlib", NULL, NULL, CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, "cairo_xcb_surface_create_with_xrender_format", _cairo_boilerplate_xcb_create_window_db, NULL, _cairo_boilerplate_xcb_finish_surface, _cairo_boilerplate_get_image_surface, cairo_surface_write_to_png, _cairo_boilerplate_xcb_cleanup, _cairo_boilerplate_xcb_synchronize, NULL, FALSE, FALSE, FALSE }, { "xcb-render-0.0", "xlib-fallback", NULL, NULL, CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR_ALPHA, 1, "cairo_xcb_surface_create_with_xrender_format", _cairo_boilerplate_xcb_create_render_0_0, NULL, _cairo_boilerplate_xcb_finish_surface, _cairo_boilerplate_get_image_surface, cairo_surface_write_to_png, _cairo_boilerplate_xcb_cleanup, _cairo_boilerplate_xcb_synchronize, NULL, FALSE, FALSE, FALSE }, { "xcb-render-0.0", "xlib-fallback", NULL, NULL, CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, "cairo_xcb_surface_create_with_xrender_format", _cairo_boilerplate_xcb_create_render_0_0, NULL, _cairo_boilerplate_xcb_finish_surface, _cairo_boilerplate_get_image_surface, cairo_surface_write_to_png, _cairo_boilerplate_xcb_cleanup, _cairo_boilerplate_xcb_synchronize, NULL, FALSE, FALSE, FALSE }, { "xcb-fallback", "xlib-fallback", NULL, NULL, CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1, "cairo_xcb_surface_create_with_xrender_format", _cairo_boilerplate_xcb_create_fallback, NULL, _cairo_boilerplate_xcb_finish_surface, _cairo_boilerplate_get_image_surface, cairo_surface_write_to_png, _cairo_boilerplate_xcb_cleanup, _cairo_boilerplate_xcb_synchronize, NULL, FALSE, FALSE, FALSE }, }; CAIRO_BOILERPLATE (xcb, targets)