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+/* Cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributors(s):
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ * Karl Tomlinson <karlt+@karlt.net>, Mozilla Corporation
+ */
+
+#ifndef CAIRO_XLIB_PRIVATE_H
+#define CAIRO_XLIB_PRIVATE_H
+
+#include "cairo-xlib-xrender-private.h"
+#include "cairo-xlib.h"
+
+#include "cairo-compiler-private.h"
+#include "cairo-device-private.h"
+#include "cairo-freelist-type-private.h"
+#include "cairo-list-private.h"
+#include "cairo-reference-count-private.h"
+#include "cairo-types-private.h"
+#include "cairo-scaled-font-private.h"
+#include "cairo-surface-private.h"
+
+#include <pixman.h>
+#include <string.h>
+
+typedef struct _cairo_xlib_display cairo_xlib_display_t;
+typedef struct _cairo_xlib_shm_display cairo_xlib_shm_display_t;
+typedef struct _cairo_xlib_screen cairo_xlib_screen_t;
+typedef struct _cairo_xlib_source cairo_xlib_source_t;
+typedef struct _cairo_xlib_proxy cairo_xlib_proxy_t;
+typedef struct _cairo_xlib_surface cairo_xlib_surface_t;
+
+/* size of color cube */
+#define CUBE_SIZE 6
+/* size of gray ramp */
+#define RAMP_SIZE 16
+/* maximum number of cached GC's */
+#define GC_CACHE_SIZE 4
+
+struct _cairo_xlib_display {
+ cairo_device_t base;
+
+ cairo_xlib_display_t *next;
+
+ Display *display;
+ cairo_list_t screens;
+ cairo_list_t fonts;
+
+ cairo_xlib_shm_display_t *shm;
+
+ const cairo_compositor_t *compositor;
+
+ int render_major;
+ int render_minor;
+ XRenderPictFormat *cached_xrender_formats[CAIRO_FORMAT_RGB30 + 1];
+
+ int force_precision;
+
+ cairo_surface_t *white;
+ cairo_surface_t *alpha[256];
+ cairo_surface_t *solid[32];
+ uint32_t solid_cache[32]; /* low 16 are opaque, high 16 transparent */
+ struct {
+ uint32_t color;
+ int index;
+ } last_solid_cache[2];
+
+ /* TRUE if the server has a bug with repeating pictures
+ *
+ * https://bugs.freedesktop.org/show_bug.cgi?id=3566
+ *
+ * We can't test for this because it depends on whether the
+ * picture is in video memory or not.
+ *
+ * We also use this variable as a guard against a second
+ * independent bug with transformed repeating pictures:
+ *
+ * http://lists.freedesktop.org/archives/cairo/2004-September/001839.html
+ *
+ * Both are fixed in xorg >= 6.9 and hopefully in > 6.8.2, so
+ * we can reuse the test for now.
+ */
+ unsigned int buggy_gradients : 1;
+ unsigned int buggy_pad_reflect : 1;
+ unsigned int buggy_repeat : 1;
+ unsigned int closed :1;
+};
+
+typedef struct _cairo_xlib_visual_info {
+ cairo_list_t link;
+ VisualID visualid;
+ struct { uint8_t a, r, g, b; } colors[256];
+ uint8_t cube_to_pseudocolor[CUBE_SIZE][CUBE_SIZE][CUBE_SIZE];
+ uint8_t field8_to_cube[256];
+ int8_t dither8_to_cube[256];
+ uint8_t gray8_to_pseudocolor[256];
+} cairo_xlib_visual_info_t;
+
+struct _cairo_xlib_screen {
+ cairo_list_t link;
+
+ cairo_device_t *device;
+ Screen *screen;
+
+ cairo_list_t surfaces;
+
+ cairo_bool_t has_font_options;
+ cairo_font_options_t font_options;
+
+ GC gc[GC_CACHE_SIZE];
+ uint8_t gc_depths[GC_CACHE_SIZE];
+
+ cairo_list_t visuals;
+};
+
+enum {
+ GLYPHSET_INDEX_ARGB32,
+ GLYPHSET_INDEX_A8,
+ GLYPHSET_INDEX_A1,
+ NUM_GLYPHSETS
+};
+
+typedef struct _cairo_xlib_font_glyphset {
+ GlyphSet glyphset;
+ cairo_format_t format;
+ XRenderPictFormat *xrender_format;
+ struct _cairo_xlib_font_glyphset_free_glyphs {
+ int count;
+ unsigned long indices[128];
+ } to_free;
+} cairo_xlib_font_glyphset_t;
+
+typedef struct _cairo_xlib_font {
+ cairo_scaled_font_private_t base;
+ cairo_scaled_font_t *font;
+ cairo_device_t *device;
+ cairo_list_t link;
+ cairo_xlib_font_glyphset_t glyphset[NUM_GLYPHSETS];
+} cairo_xlib_font_t;
+
+struct _cairo_xlib_surface {
+ cairo_surface_t base;
+
+ Picture picture;
+ Drawable drawable;
+
+ const cairo_compositor_t *compositor;
+ cairo_surface_t *shm;
+ int fallback;
+
+ cairo_xlib_display_t *display;
+ cairo_xlib_screen_t *screen;
+ cairo_list_t link;
+
+ Display *dpy; /* only valid between acquire/release */
+ cairo_bool_t owns_pixmap;
+ Visual *visual;
+
+ int use_pixmap;
+
+ int width;
+ int height;
+ int depth;
+
+ int precision;
+ XRenderPictFormat *xrender_format;
+ /* XXX pixman_format instead of masks? */
+ uint32_t a_mask;
+ uint32_t r_mask;
+ uint32_t g_mask;
+ uint32_t b_mask;
+
+ struct _cairo_xlib_source {
+ cairo_surface_t base;
+
+ Picture picture;
+ Pixmap pixmap;
+ Display *dpy;
+
+ unsigned int filter:3;
+ unsigned int extend:3;
+ unsigned int has_matrix:1;
+ unsigned int has_component_alpha:1;
+ } embedded_source;
+};
+
+struct _cairo_xlib_proxy {
+ struct _cairo_xlib_source source;
+ cairo_surface_t *owner;
+};
+
+inline static cairo_bool_t
+_cairo_xlib_vendor_is_xorg (Display *dpy)
+{
+ const char *const vendor = ServerVendor (dpy);
+ return strstr (vendor, "X.Org") || strstr (vendor, "Xorg");
+}
+
+cairo_private cairo_status_t
+_cairo_xlib_surface_get_gc (cairo_xlib_display_t *display,
+ cairo_xlib_surface_t *surface,
+ GC *gc);
+
+cairo_private cairo_device_t *
+_cairo_xlib_device_create (Display *display);
+
+cairo_private void
+_cairo_xlib_display_init_shm (cairo_xlib_display_t *display);
+
+cairo_private void
+_cairo_xlib_display_fini_shm (cairo_xlib_display_t *display);
+
+cairo_private cairo_xlib_screen_t *
+_cairo_xlib_display_get_screen (cairo_xlib_display_t *display,
+ Screen *screen);
+
+cairo_private cairo_status_t
+_cairo_xlib_display_acquire (cairo_device_t *device,
+ cairo_xlib_display_t **display);
+
+cairo_private cairo_bool_t
+_cairo_xlib_display_has_repeat (cairo_device_t *device);
+
+cairo_private cairo_bool_t
+_cairo_xlib_display_has_reflect (cairo_device_t *device);
+
+cairo_private cairo_bool_t
+_cairo_xlib_display_has_gradients (cairo_device_t *device);
+
+cairo_private void
+_cairo_xlib_display_set_precision(cairo_device_t *device,
+ int precision);
+
+cairo_private XRenderPictFormat *
+_cairo_xlib_display_get_xrender_format (cairo_xlib_display_t *display,
+ cairo_format_t format);
+
+cairo_private XRenderPictFormat *
+_cairo_xlib_display_get_xrender_format_for_pixman (cairo_xlib_display_t *display,
+ pixman_format_code_t format);
+
+cairo_private cairo_status_t
+_cairo_xlib_screen_get (Display *dpy,
+ Screen *screen,
+ cairo_xlib_screen_t **out);
+
+cairo_private void
+_cairo_xlib_screen_destroy (cairo_xlib_display_t *display,
+ cairo_xlib_screen_t *info);
+
+cairo_private GC
+_cairo_xlib_screen_get_gc (cairo_xlib_display_t *display,
+ cairo_xlib_screen_t *info,
+ int depth,
+ Drawable drawable);
+cairo_private void
+_cairo_xlib_screen_put_gc (cairo_xlib_display_t *display,
+ cairo_xlib_screen_t *info,
+ int depth,
+ GC gc);
+
+cairo_private cairo_font_options_t *
+_cairo_xlib_screen_get_font_options (cairo_xlib_screen_t *info);
+
+cairo_private cairo_status_t
+_cairo_xlib_screen_get_visual_info (cairo_xlib_display_t *display,
+ cairo_xlib_screen_t *info,
+ Visual *visual,
+ cairo_xlib_visual_info_t **out);
+
+cairo_private cairo_status_t
+_cairo_xlib_visual_info_create (Display *dpy,
+ int screen,
+ VisualID visualid,
+ cairo_xlib_visual_info_t **out);
+
+cairo_private void
+_cairo_xlib_visual_info_destroy (cairo_xlib_visual_info_t *info);
+
+cairo_private const cairo_compositor_t *
+_cairo_xlib_core_compositor_get (void);
+
+cairo_private const cairo_compositor_t *
+_cairo_xlib_fallback_compositor_get (void);
+
+cairo_private const cairo_compositor_t *
+_cairo_xlib_mask_compositor_get (void);
+
+cairo_private const cairo_compositor_t *
+_cairo_xlib_traps_compositor_get (void);
+
+cairo_private void
+_cairo_xlib_surface_ensure_picture (cairo_xlib_surface_t *surface);
+
+cairo_private void
+_cairo_xlib_surface_set_precision (cairo_xlib_surface_t *surface,
+ cairo_antialias_t antialias);
+
+cairo_private cairo_int_status_t
+_cairo_xlib_surface_set_attributes (cairo_xlib_display_t *display,
+ cairo_xlib_surface_t *surface,
+ cairo_surface_attributes_t *attributes,
+ double xc,
+ double yc);
+
+cairo_private cairo_status_t
+_cairo_xlib_surface_draw_image (cairo_xlib_surface_t *surface,
+ cairo_image_surface_t *image,
+ int src_x,
+ int src_y,
+ int width,
+ int height,
+ int dst_x,
+ int dst_y);
+
+cairo_private cairo_surface_t *
+_cairo_xlib_source_create_for_pattern (cairo_surface_t *dst,
+ const cairo_pattern_t *pattern,
+ cairo_bool_t is_mask,
+ const cairo_rectangle_int_t *extents,
+ const cairo_rectangle_int_t *sample,
+ int *src_x, int *src_y);
+
+cairo_private void
+_cairo_xlib_font_close (cairo_xlib_font_t *font);
+
+#define CAIRO_RENDER_AT_LEAST(surface, major, minor) \
+ (((surface)->render_major > major) || \
+ (((surface)->render_major == major) && ((surface)->render_minor >= minor)))
+
+#define CAIRO_RENDER_HAS_CREATE_PICTURE(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 0)
+#define CAIRO_RENDER_HAS_COMPOSITE(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 0)
+#define CAIRO_RENDER_HAS_COMPOSITE_TEXT(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 0)
+
+#define CAIRO_RENDER_HAS_FILL_RECTANGLES(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 1)
+
+#define CAIRO_RENDER_HAS_DISJOINT(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 2)
+#define CAIRO_RENDER_HAS_CONJOINT(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 2)
+
+#define CAIRO_RENDER_HAS_TRAPEZOIDS(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 4)
+#define CAIRO_RENDER_HAS_TRIANGLES(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 4)
+#define CAIRO_RENDER_HAS_TRISTRIP(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 4)
+#define CAIRO_RENDER_HAS_TRIFAN(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 4)
+
+#define CAIRO_RENDER_HAS_PICTURE_TRANSFORM(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 6)
+#define CAIRO_RENDER_HAS_FILTERS(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 6)
+#define CAIRO_RENDER_HAS_FILTER_GOOD(surface) FALSE
+#define CAIRO_RENDER_HAS_FILTER_BEST(surface) FALSE
+
+#define CAIRO_RENDER_HAS_EXTENDED_REPEAT(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 10)
+#define CAIRO_RENDER_HAS_GRADIENTS(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 10)
+
+#define CAIRO_RENDER_HAS_PDF_OPERATORS(surface) CAIRO_RENDER_AT_LEAST((surface), 0, 11)
+
+#define CAIRO_RENDER_SUPPORTS_OPERATOR(surface, op) \
+ ((op) <= CAIRO_OPERATOR_SATURATE || \
+ (CAIRO_RENDER_HAS_PDF_OPERATORS(surface) && \
+ (op) <= CAIRO_OPERATOR_HSL_LUMINOSITY))
+
+/*
+ * Return whether two xlib surfaces share the same
+ * screen. Both core and Render drawing require this
+ * when using multiple drawables in an operation.
+ */
+static inline cairo_bool_t
+_cairo_xlib_surface_same_screen (cairo_xlib_surface_t *dst,
+ cairo_xlib_surface_t *src)
+{
+ return dst->screen == src->screen;
+}
+
+cairo_private cairo_int_status_t
+_cairo_xlib_core_fill_boxes (cairo_xlib_surface_t *dst,
+ const cairo_color_t *color,
+ cairo_boxes_t *boxes);
+
+cairo_private cairo_int_status_t
+_cairo_xlib_core_fill_rectangles (cairo_xlib_surface_t *dst,
+ const cairo_color_t *color,
+ int num_rects,
+ cairo_rectangle_int_t *rects);
+
+static inline void
+_cairo_xlib_surface_put_gc (cairo_xlib_display_t *display,
+ cairo_xlib_surface_t *surface,
+ GC gc)
+{
+ _cairo_xlib_screen_put_gc (display,
+ surface->screen,
+ surface->depth,
+ gc);
+}
+
+cairo_private cairo_surface_t *
+_cairo_xlib_surface_create_similar_shm (void *surface,
+ cairo_format_t format,
+ int width, int height);
+
+cairo_private cairo_surface_t *
+_cairo_xlib_surface_get_shm (cairo_xlib_surface_t *surface,
+ cairo_bool_t overwrite);
+
+cairo_private cairo_int_status_t
+_cairo_xlib_surface_put_shm (cairo_xlib_surface_t *surface);
+
+cairo_private cairo_surface_t *
+_cairo_xlib_surface_create_shm (cairo_xlib_surface_t *other,
+ pixman_format_code_t format,
+ int width, int height);
+
+cairo_private cairo_surface_t *
+_cairo_xlib_surface_create_shm__image (cairo_xlib_surface_t *surface,
+ pixman_format_code_t format,
+ int width, int height);
+
+cairo_private void
+_cairo_xlib_shm_surface_get_ximage (cairo_surface_t *surface,
+ XImage *ximage);
+
+cairo_private void *
+_cairo_xlib_shm_surface_get_obdata (cairo_surface_t *surface);
+
+cairo_private void
+_cairo_xlib_shm_surface_mark_active (cairo_surface_t *shm);
+
+cairo_private cairo_bool_t
+_cairo_xlib_shm_surface_is_active (cairo_surface_t *surface);
+
+cairo_private cairo_bool_t
+_cairo_xlib_shm_surface_is_idle (cairo_surface_t *surface);
+
+cairo_private Pixmap
+_cairo_xlib_shm_surface_get_pixmap (cairo_surface_t *surface);
+
+cairo_private XRenderPictFormat *
+_cairo_xlib_shm_surface_get_xrender_format (cairo_surface_t *surface);
+
+cairo_private pixman_format_code_t
+_pixman_format_for_xlib_surface (cairo_xlib_surface_t *surface);
+
+#endif /* CAIRO_XLIB_PRIVATE_H */