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cairo/src/cairo-xlib-private.h
Chris Wilson af9fbd176b Introduce a new compositor architecture 
Having spent the last dev cycle looking at how we could specialize the
compositors for various backends, we once again look for the
commonalities in order to reduce the duplication. In part this is
motivated by the idea that spans is a good interface for both the
existent GL backend and pixman, and so they deserve a dedicated
compositor. xcb/xlib target an identical rendering system and so they
should be using the same compositor, and it should be possible to run
that same compositor locally against pixman to generate reference tests.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

P.S. This brings massive upheaval (read breakage) I've tried delaying in
order to fix as many things as possible but now this one patch does far,
far, far too much. Apologies in advance for breaking your favourite
backend, but trust me in that the end result will be much better. :)
2011-09-12 08:29:48 +01:00

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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.h"
#include "cairo-xlib-xrender-private.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>
typedef struct _cairo_xlib_display cairo_xlib_display_t;
typedef struct _cairo_xlib_screen cairo_xlib_screen_t;
typedef struct _cairo_xlib_source cairo_xlib_source_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;
const cairo_compositor_t *compositor;
int render_major;
int render_minor;
XRenderPictFormat *cached_xrender_formats[CAIRO_FORMAT_RGB16_565 + 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;
const cairo_compositor_t *compositor;
cairo_xlib_display_t *display;
cairo_xlib_screen_t *screen;
cairo_list_t link;
Display *dpy; /* only valid between acquire/release */
Drawable drawable;
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;
Display *dpy;
unsigned int filter:3;
unsigned int extend:3;
unsigned int has_matrix:1;
unsigned int has_component_alpha:1;
} embedded_source;
};
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 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_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;
}
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);
}
#endif /* CAIRO_XLIB_PRIVATE_H */
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