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pixelcache: Remove

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It's now unused.
This commit is contained in:
Benjamin Otte 2016-10-26 23:46:51 +02:00
parent a9c05448a8
commit 568f1ff301
3 changed files with 0 additions and 571 deletions
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2
gtk/Makefile.am
View File

@ -522,7 +522,6 @@ gtk_private_h_sources = \
gtkprintoperation-private.h \
gtkprintutils.h \
gtkprivate.h \
gtkpixelcacheprivate.h \
gtkprogresstrackerprivate.h \
gtkquery.h \
gtkrangeprivate.h \
@ -835,7 +834,6 @@ gtk_base_c_sources = \
gtkprivatetypebuiltins.c \
gtkprogressbar.c \
gtkprogresstracker.c \
gtkpixelcache.c \
gtkpopover.c \
gtkpopovermenu.c \
gtkradiobutton.c \

506
gtk/gtkpixelcache.c
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@ -1,506 +0,0 @@
/* GTK - The GIMP Toolkit
* Copyright (C) 2013 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkdebug.h"
#include "gtkprivate.h"
#include "gtkpixelcacheprivate.h"
#include "gtkrenderbackgroundprivate.h"
#include "gtkstylecontextprivate.h"
#define BLOW_CACHE_TIMEOUT_SEC 20
/* The extra size of the offscreen surface we allocate
to make scrolling more efficient */
#define DEFAULT_EXTRA_SIZE 64
/* When resizing viewport we allow this extra
size to avoid constantly reallocating when resizing */
#define ALLOW_SMALLER_SIZE_FACTOR 0.5
#define ALLOW_LARGER_SIZE_FACTOR 1.25
struct _GtkPixelCache {
cairo_surface_t *surface;
cairo_content_t content;
/* Valid if surface != NULL */
int surface_x;
int surface_y;
int surface_w;
int surface_h;
double surface_scale;
/* may be null if not dirty */
cairo_region_t *surface_dirty;
GSource *timeout_source;
guint extra_width;
guint extra_height;
guint always_cache : 1;
guint is_opaque : 1;
};
GtkPixelCache *
_gtk_pixel_cache_new ()
{
GtkPixelCache *cache;
cache = g_new0 (GtkPixelCache, 1);
cache->extra_width = DEFAULT_EXTRA_SIZE;
cache->extra_height = DEFAULT_EXTRA_SIZE;
return cache;
}
void
_gtk_pixel_cache_free (GtkPixelCache *cache)
{
if (cache == NULL)
return;
if (cache->timeout_source ||
cache->surface ||
cache->surface_dirty)
{
g_warning ("pixel cache freed that wasn't unmapped: tag %u surface %p dirty %p",
g_source_get_id (cache->timeout_source), cache->surface, cache->surface_dirty);
}
g_clear_pointer (&cache->timeout_source, g_source_destroy);
g_clear_pointer (&cache->surface, cairo_surface_destroy);
g_clear_pointer (&cache->surface_dirty, cairo_region_destroy);
g_free (cache);
}
void
_gtk_pixel_cache_set_extra_size (GtkPixelCache *cache,
guint extra_width,
guint extra_height)
{
cache->extra_width = extra_width ? extra_width : DEFAULT_EXTRA_SIZE;
cache->extra_height = extra_height ? extra_height : DEFAULT_EXTRA_SIZE;
}
void
_gtk_pixel_cache_get_extra_size (GtkPixelCache *cache,
guint *extra_width,
guint *extra_height)
{
if (extra_width)
*extra_width = cache->extra_width;
if (extra_height)
*extra_height = cache->extra_height;
}
void
_gtk_pixel_cache_set_content (GtkPixelCache *cache,
cairo_content_t content)
{
cache->content = content;
_gtk_pixel_cache_invalidate (cache, NULL);
}
/* Region is in canvas coordinates */
void
_gtk_pixel_cache_invalidate (GtkPixelCache *cache,
cairo_region_t *region)
{
cairo_rectangle_int_t r;
cairo_region_t *free_region = NULL;
if (cache->surface == NULL ||
(region != NULL && cairo_region_is_empty (region)))
return;
if (region == NULL)
{
r.x = cache->surface_x;
r.y = cache->surface_y;
r.width = cache->surface_w;
r.height = cache->surface_h;
free_region = region =
cairo_region_create_rectangle (&r);
}
if (cache->surface_dirty == NULL)
{
cache->surface_dirty = cairo_region_copy (region);
cairo_region_translate (cache->surface_dirty,
-cache->surface_x,
-cache->surface_y);
}
else
{
cairo_region_translate (region,
-cache->surface_x,
-cache->surface_y);
cairo_region_union (cache->surface_dirty, region);
cairo_region_translate (region,
cache->surface_x,
cache->surface_y);
}
if (free_region)
cairo_region_destroy (free_region);
r.x = 0;
r.y = 0;
r.width = cache->surface_w;
r.height = cache->surface_h;
cairo_region_intersect_rectangle (cache->surface_dirty, &r);
}
static void
_gtk_pixel_cache_create_surface_if_needed (GtkPixelCache *cache,
GdkWindow *window,
cairo_rectangle_int_t *view_rect,
cairo_rectangle_int_t *canvas_rect)
{
cairo_rectangle_int_t rect;
int surface_w, surface_h;
cairo_content_t content;
#ifdef G_ENABLE_DEBUG
if (GTK_DISPLAY_DEBUG_CHECK (gdk_window_get_display (window), NO_PIXEL_CACHE))
return;
#endif
content = cache->content;
if (!content)
{
if (cache->is_opaque)
content = CAIRO_CONTENT_COLOR;
else
content = CAIRO_CONTENT_COLOR_ALPHA;
}
surface_w = view_rect->width;
if (canvas_rect->width > surface_w)
surface_w = MIN (surface_w + cache->extra_width, canvas_rect->width);
surface_h = view_rect->height;
if (canvas_rect->height > surface_h)
surface_h = MIN (surface_h + cache->extra_height, canvas_rect->height);
/* If current surface can't fit view_rect or is too large, kill it */
if (cache->surface != NULL &&
(cairo_surface_get_content (cache->surface) != content ||
cache->surface_w < MAX(view_rect->width, surface_w * ALLOW_SMALLER_SIZE_FACTOR) ||
cache->surface_w > surface_w * ALLOW_LARGER_SIZE_FACTOR ||
cache->surface_h < MAX(view_rect->height, surface_h * ALLOW_SMALLER_SIZE_FACTOR) ||
cache->surface_h > surface_h * ALLOW_LARGER_SIZE_FACTOR ||
cache->surface_scale != gdk_window_get_scale_factor (window)))
{
cairo_surface_destroy (cache->surface);
cache->surface = NULL;
if (cache->surface_dirty)
cairo_region_destroy (cache->surface_dirty);
cache->surface_dirty = NULL;
}
/* Don't allocate a surface if view >= canvas, as we won't
* be scrolling then anyway, unless the widget requested it.
*/
if (cache->surface == NULL &&
(cache->always_cache ||
(view_rect->width < canvas_rect->width ||
view_rect->height < canvas_rect->height)))
{
cache->surface_x = -canvas_rect->x;
cache->surface_y = -canvas_rect->y;
cache->surface_w = surface_w;
cache->surface_h = surface_h;
cache->surface_scale = gdk_window_get_scale_factor (window);
cache->surface =
gdk_window_create_similar_surface (window, content,
surface_w, surface_h);
rect.x = 0;
rect.y = 0;
rect.width = surface_w;
rect.height = surface_h;
cache->surface_dirty =
cairo_region_create_rectangle (&rect);
}
}
static void
_gtk_pixel_cache_set_position (GtkPixelCache *cache,
cairo_rectangle_int_t *view_rect,
cairo_rectangle_int_t *canvas_rect)
{
cairo_rectangle_int_t r, view_pos;
cairo_region_t *copy_region;
int new_surf_x, new_surf_y;
cairo_t *backing_cr;
if (cache->surface == NULL)
return;
/* Position of view inside canvas */
view_pos.x = -canvas_rect->x;
view_pos.y = -canvas_rect->y;
view_pos.width = view_rect->width;
view_pos.height = view_rect->height;
/* Reposition so all is visible */
if (view_pos.x < cache->surface_x ||
view_pos.x + view_pos.width > cache->surface_x + cache->surface_w ||
view_pos.y < cache->surface_y ||
view_pos.y + view_pos.height > cache->surface_y + cache->surface_h)
{
new_surf_x = cache->surface_x;
if (view_pos.x < cache->surface_x)
new_surf_x = MAX (view_pos.x + view_pos.width - cache->surface_w, 0);
else if (view_pos.x + view_pos.width >
cache->surface_x + cache->surface_w)
new_surf_x = MIN (view_pos.x, canvas_rect->width - cache->surface_w);
new_surf_y = cache->surface_y;
if (view_pos.y < cache->surface_y)
new_surf_y = MAX (view_pos.y + view_pos.height - cache->surface_h, 0);
else if (view_pos.y + view_pos.height >
cache->surface_y + cache->surface_h)
new_surf_y = MIN (view_pos.y, canvas_rect->height - cache->surface_h);
r.x = 0;
r.y = 0;
r.width = cache->surface_w;
r.height = cache->surface_h;
copy_region = cairo_region_create_rectangle (&r);
if (cache->surface_dirty)
{
cairo_region_subtract (copy_region, cache->surface_dirty);
cairo_region_destroy (cache->surface_dirty);
cache->surface_dirty = NULL;
}
cairo_region_translate (copy_region,
cache->surface_x - new_surf_x,
cache->surface_y - new_surf_y);
cairo_region_intersect_rectangle (copy_region, &r);
backing_cr = cairo_create (cache->surface);
gdk_cairo_region (backing_cr, copy_region);
cairo_set_operator (backing_cr, CAIRO_OPERATOR_SOURCE);
cairo_clip (backing_cr);
cairo_push_group (backing_cr);
cairo_set_source_surface (backing_cr, cache->surface,
cache->surface_x - new_surf_x,
cache->surface_y - new_surf_y);
cairo_paint (backing_cr);
cairo_pop_group_to_source (backing_cr);
cairo_paint (backing_cr);
cairo_destroy (backing_cr);
cache->surface_x = new_surf_x;
cache->surface_y = new_surf_y;
cairo_region_xor_rectangle (copy_region, &r);
cache->surface_dirty = copy_region;
}
}
static void
_gtk_pixel_cache_repaint (GtkPixelCache *cache,
GdkWindow *window,
GtkPixelCacheDrawFunc draw,
cairo_rectangle_int_t *view_rect,
cairo_rectangle_int_t *canvas_rect,
gpointer user_data)
{
cairo_t *backing_cr;
cairo_region_t *region_dirty = cache->surface_dirty;
cache->surface_dirty = NULL;
if (cache->surface &&
region_dirty &&
!cairo_region_is_empty (region_dirty))
{
backing_cr = cairo_create (cache->surface);
gdk_cairo_region (backing_cr, region_dirty);
cairo_clip (backing_cr);
cairo_translate (backing_cr,
-cache->surface_x - canvas_rect->x - view_rect->x,
-cache->surface_y - canvas_rect->y - view_rect->y);
cairo_save (backing_cr);
cairo_set_source_rgba (backing_cr,
0.0, 0, 0, 0.0);
cairo_set_operator (backing_cr, CAIRO_OPERATOR_SOURCE);
cairo_paint (backing_cr);
cairo_restore (backing_cr);
cairo_save (backing_cr);
draw (backing_cr, user_data);
cairo_restore (backing_cr);
#ifdef G_ENABLE_DEBUG
if (GTK_DISPLAY_DEBUG_CHECK (gdk_window_get_display (window), PIXEL_CACHE))
{
GdkRGBA colors[] = {
{ 1, 0, 0, 0.08},
{ 0, 1, 0, 0.08},
{ 0, 0, 1, 0.08},
{ 1, 0, 1, 0.08},
{ 1, 1, 0, 0.08},
{ 0, 1, 1, 0.08},
};
static int current_color = 0;
gdk_cairo_set_source_rgba (backing_cr, &colors[(current_color++) % G_N_ELEMENTS (colors)]);
cairo_paint (backing_cr);
}
#endif
cairo_destroy (backing_cr);
}
if (region_dirty)
cairo_region_destroy (region_dirty);
}
static void
gtk_pixel_cache_blow_cache (GtkPixelCache *cache)
{
g_clear_pointer (&cache->timeout_source, g_source_destroy);
g_clear_pointer (&cache->surface, cairo_surface_destroy);
g_clear_pointer (&cache->surface_dirty, cairo_region_destroy);
}
static gboolean
blow_cache_cb (gpointer user_data)
{
GtkPixelCache *cache = user_data;
cache->timeout_source = NULL;
gtk_pixel_cache_blow_cache (cache);
return G_SOURCE_REMOVE;
}
static gboolean
context_is_unscaled (cairo_t *cr)
{
cairo_matrix_t matrix;
gdouble x, y;
x = y = 1;
cairo_get_matrix (cr, &matrix);
cairo_matrix_transform_distance (&matrix, &x, &y);
return x == 1 && y == 1;
}
void
_gtk_pixel_cache_draw (GtkPixelCache *cache,
cairo_t *cr,
GdkWindow *window,
cairo_rectangle_int_t *view_rect, /* View position in widget coords */
cairo_rectangle_int_t *canvas_rect, /* Size and position of canvas in view coords */
GtkPixelCacheDrawFunc draw,
gpointer user_data)
{
if (cache->timeout_source)
{
gint64 deadline;
deadline = g_get_monotonic_time () + (BLOW_CACHE_TIMEOUT_SEC * G_USEC_PER_SEC);
g_source_set_ready_time (cache->timeout_source, deadline);
}
else
{
guint tag;
tag = g_timeout_add_seconds (BLOW_CACHE_TIMEOUT_SEC, blow_cache_cb, cache);
cache->timeout_source = g_main_context_find_source_by_id (NULL, tag);
g_source_set_name (cache->timeout_source, "[gtk+] blow_cache_cb");
}
_gtk_pixel_cache_create_surface_if_needed (cache, window,
view_rect, canvas_rect);
_gtk_pixel_cache_set_position (cache, view_rect, canvas_rect);
_gtk_pixel_cache_repaint (cache, window, draw, view_rect, canvas_rect, user_data);
if (cache->surface && context_is_unscaled (cr) &&
/* Don't use backing surface if rendering elsewhere */
cairo_surface_get_type (cache->surface) == cairo_surface_get_type (cairo_get_target (cr)))
{
cairo_save (cr);
cairo_set_source_surface (cr, cache->surface,
cache->surface_x + view_rect->x + canvas_rect->x,
cache->surface_y + view_rect->y + canvas_rect->y);
cairo_rectangle (cr, view_rect->x, view_rect->y,
view_rect->width, view_rect->height);
cairo_fill (cr);
cairo_restore (cr);
}
else
{
cairo_rectangle (cr,
view_rect->x, view_rect->y,
view_rect->width, view_rect->height);
cairo_clip (cr);
draw (cr, user_data);
}
}
void
_gtk_pixel_cache_map (GtkPixelCache *cache)
{
_gtk_pixel_cache_invalidate (cache, NULL);
}
void
_gtk_pixel_cache_unmap (GtkPixelCache *cache)
{
gtk_pixel_cache_blow_cache (cache);
}
gboolean
_gtk_pixel_cache_get_always_cache (GtkPixelCache *cache)
{
return cache->always_cache;
}
void
_gtk_pixel_cache_set_always_cache (GtkPixelCache *cache,
gboolean always_cache)
{
cache->always_cache = !!always_cache;
}
void
gtk_pixel_cache_set_is_opaque (GtkPixelCache *cache,
gboolean is_opaque)
{
if (cache->is_opaque == is_opaque)
return;
cache->is_opaque = is_opaque;
_gtk_pixel_cache_invalidate (cache, NULL);
}

63
gtk/gtkpixelcacheprivate.h
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@ -1,63 +0,0 @@
/*
* Copyright © 2013 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Alexander Larsson <alexl@gnome.org>
*/
#ifndef __GTK_PIXEL_CACHE_PRIVATE_H__
#define __GTK_PIXEL_CACHE_PRIVATE_H__
#include <glib-object.h>
#include <gtkwidget.h>
G_BEGIN_DECLS
typedef struct _GtkPixelCache GtkPixelCache;
typedef void (*GtkPixelCacheDrawFunc) (cairo_t *cr,
gpointer user_data);
GtkPixelCache *_gtk_pixel_cache_new (void);
void _gtk_pixel_cache_free (GtkPixelCache *cache);
void _gtk_pixel_cache_map (GtkPixelCache *cache);
void _gtk_pixel_cache_unmap (GtkPixelCache *cache);
void _gtk_pixel_cache_invalidate (GtkPixelCache *cache,
cairo_region_t *region);
void _gtk_pixel_cache_draw (GtkPixelCache *cache,
cairo_t *cr,
GdkWindow *window,
cairo_rectangle_int_t *view_rect,
cairo_rectangle_int_t *canvas_rect,
GtkPixelCacheDrawFunc draw,
gpointer user_data);
void _gtk_pixel_cache_get_extra_size (GtkPixelCache *cache,
guint *extra_width,
guint *extra_height);
void _gtk_pixel_cache_set_extra_size (GtkPixelCache *cache,
guint extra_width,
guint extra_height);
void _gtk_pixel_cache_set_content (GtkPixelCache *cache,
cairo_content_t content);
gboolean _gtk_pixel_cache_get_always_cache (GtkPixelCache *cache);
void _gtk_pixel_cache_set_always_cache (GtkPixelCache *cache,
gboolean always_cache);
void gtk_pixel_cache_set_is_opaque (GtkPixelCache *cache,
gboolean is_opaque);
G_END_DECLS
#endif /* __GTK_PIXEL_CACHE_PRIVATE_H__ */