diff options
Diffstat (limited to 'libs/cairo-1.16.0/src/cairo-xlib-core-compositor.c')
| -rw-r--r-- | libs/cairo-1.16.0/src/cairo-xlib-core-compositor.c | 653 |
1 files changed, 0 insertions, 653 deletions
diff --git a/libs/cairo-1.16.0/src/cairo-xlib-core-compositor.c b/libs/cairo-1.16.0/src/cairo-xlib-core-compositor.c deleted file mode 100644 index 1392999..0000000 --- a/libs/cairo-1.16.0/src/cairo-xlib-core-compositor.c +++ /dev/null @@ -1,653 +0,0 @@ -/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ -/* cairo - a vector graphics library with display and print output - * - * Copyright © 2002 University of Southern California - * Copyright © 2005 Red Hat, Inc. - * Copyright © 2011 Intel Corporation - * - * 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 University of Southern - * California. - * - * Contributor(s): - * Carl D. Worth <cworth@cworth.org> - * Behdad Esfahbod <behdad@behdad.org> - * Chris Wilson <chris@chris-wilson.co.uk> - * Karl Tomlinson <karlt+@karlt.net>, Mozilla Corporation - */ - -/* The original X drawing API was very restrictive in what it could handle, - * pixel-aligned fill/blits are all that map into Cairo's drawing model. - */ - -#include "cairoint.h" - -#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS - -#include "cairo-xlib-private.h" -#include "cairo-xlib-surface-private.h" - -#include "cairo-boxes-private.h" -#include "cairo-clip-inline.h" -#include "cairo-compositor-private.h" -#include "cairo-image-surface-private.h" -#include "cairo-pattern-private.h" -#include "cairo-region-private.h" -#include "cairo-surface-offset-private.h" - -/* the low-level interface */ - -static cairo_int_status_t -acquire (void *abstract_dst) -{ - cairo_xlib_surface_t *dst = abstract_dst; - return _cairo_xlib_display_acquire (dst->base.device, &dst->display); -} - -static cairo_int_status_t -release (void *abstract_dst) -{ - cairo_xlib_surface_t *dst = abstract_dst; - - cairo_device_release (&dst->display->base); - dst->display = NULL; - - return CAIRO_STATUS_SUCCESS; -} - -struct _fill_box { - Display *dpy; - Drawable drawable; - GC gc; - //cairo_surface_t *dither = NULL; -}; - -static cairo_bool_t fill_box (cairo_box_t *box, void *closure) -{ - struct _fill_box *data = closure; - int x = _cairo_fixed_integer_part (box->p1.x); - int y = _cairo_fixed_integer_part (box->p1.y); - int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); - int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); - - XFillRectangle (data->dpy, data->drawable, data->gc, x, y, width, height); - return TRUE; -} - -static void -_characterize_field (uint32_t mask, int *width, int *shift) -{ - *width = _cairo_popcount (mask); - /* The final '& 31' is to force a 0 mask to result in 0 shift. */ - *shift = _cairo_popcount ((mask - 1) & ~mask) & 31; -} - -static uint32_t -color_to_pixel (cairo_xlib_surface_t *dst, - const cairo_color_t *color) -{ - uint32_t rgba = 0; - int width, shift; - - _characterize_field (dst->a_mask, &width, &shift); - rgba |= color->alpha_short >> (16 - width) << shift; - - _characterize_field (dst->r_mask, &width, &shift); - rgba |= color->red_short >> (16 - width) << shift; - - _characterize_field (dst->g_mask, &width, &shift); - rgba |= color->green_short >> (16 - width) << shift; - - _characterize_field (dst->b_mask, &width, &shift); - rgba |= color->blue_short >> (16 - width) << shift; - - return rgba; -} - -static cairo_int_status_t -_fill_box_init (struct _fill_box *fb, - cairo_xlib_surface_t *dst, - const cairo_color_t *color) -{ - cairo_int_status_t status; - - status = _cairo_xlib_surface_get_gc (dst->display, dst, &fb->gc); - if (unlikely (status)) - return status; - - fb->dpy = dst->display->display; - fb->drawable = dst->drawable; - - if (dst->visual && dst->visual->class != TrueColor && 0) { -#if 0 - cairo_solid_pattern_t solid; - cairo_surface_attributes_t attrs; - - _cairo_pattern_init_solid (&solid, color); - status = _cairo_pattern_acquire_surface (&solid.base, &dst->base, - 0, 0, - ARRAY_LENGTH (dither_pattern[0]), - ARRAY_LENGTH (dither_pattern), - CAIRO_PATTERN_ACQUIRE_NONE, - &dither, - &attrs); - if (unlikely (status)) { - _cairo_xlib_surface_put_gc (dst->display, dst, fb.gc); - return status; - } - - XSetTSOrigin (fb->dpy, fb->gc, - - (dst->base.device_transform.x0 + attrs.x_offset), - - (dst->base.device_transform.y0 + attrs.y_offset)); - XSetTile (fb->dpy, fb->gc, ((cairo_xlib_surface_t *) dither)->drawable); -#endif - } else { - XGCValues gcv; - - gcv.foreground = color_to_pixel (dst, color); - gcv.fill_style = FillSolid; - - XChangeGC (fb->dpy, fb->gc, GCFillStyle | GCForeground, &gcv); - } - - return CAIRO_INT_STATUS_SUCCESS; -} - -static void -_fill_box_fini (struct _fill_box *fb, - cairo_xlib_surface_t *dst) -{ - _cairo_xlib_surface_put_gc (dst->display, dst, fb->gc); - //cairo_surface_destroy (fb->dither); -} - -cairo_int_status_t -_cairo_xlib_core_fill_boxes (cairo_xlib_surface_t *dst, - const cairo_color_t *color, - cairo_boxes_t *boxes) -{ - cairo_int_status_t status; - struct _fill_box fb; - - status = _fill_box_init (&fb, dst, color); - if (unlikely (status)) - return status; - - _cairo_boxes_for_each_box (boxes, fill_box, &fb); - - _fill_box_fini (&fb, dst); - return CAIRO_STATUS_SUCCESS; -} - -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) -{ - cairo_int_status_t status; - struct _fill_box fb; - int i; - - status = _fill_box_init (&fb, dst, color); - if (unlikely (status)) - return status; - - for (i = 0; i < num_rects; i++) - XFillRectangle (fb.dpy, fb.drawable, fb.gc, - rects[i].x, rects[i].y, - rects[i].width, rects[i].height); - - _fill_box_fini (&fb, dst); - return CAIRO_STATUS_SUCCESS; -} - -struct _fallback_box { - cairo_xlib_surface_t *dst; - cairo_format_t format; - const cairo_pattern_t *pattern; -}; - -static cairo_bool_t fallback_box (cairo_box_t *box, void *closure) -{ - struct _fallback_box *data = closure; - int x = _cairo_fixed_integer_part (box->p1.x); - int y = _cairo_fixed_integer_part (box->p1.y); - int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); - int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); - cairo_surface_t *image; - cairo_status_t status; - - /* XXX for EXTEND_NONE and if the box is wholly outside we can just fill */ - - image = cairo_surface_create_similar_image (&data->dst->base, data->format, - width, height); - status = _cairo_surface_offset_paint (image, x, y, - CAIRO_OPERATOR_SOURCE, - data->pattern, NULL); - if (status == CAIRO_STATUS_SUCCESS) { - status = _cairo_xlib_surface_draw_image (data->dst, - (cairo_image_surface_t *)image, - 0, 0, - width, height, - x, y); - } - cairo_surface_destroy (image); - - return status == CAIRO_STATUS_SUCCESS; -} - -static cairo_int_status_t -fallback_boxes (cairo_xlib_surface_t *dst, - const cairo_pattern_t *pattern, - cairo_boxes_t *boxes) -{ - struct _fallback_box fb; - - /* XXX create_similar_image using pixman_format? */ - switch (dst->depth) { - case 8: fb.format = CAIRO_FORMAT_A8; break; - case 16: fb.format = CAIRO_FORMAT_RGB16_565; break; - case 24: fb.format = CAIRO_FORMAT_RGB24; break; - case 30: fb.format = CAIRO_FORMAT_RGB30; break; - case 32: fb.format = CAIRO_FORMAT_ARGB32; break; - default: return CAIRO_INT_STATUS_UNSUPPORTED; - } - - fb.dst = dst; - fb.pattern = pattern; - - if (! _cairo_boxes_for_each_box (boxes, fallback_box, &fb)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_int_status_t -render_boxes (cairo_xlib_surface_t *dst, - const cairo_pattern_t *pattern, - cairo_boxes_t *boxes) -{ - if (pattern->filter != CAIRO_FILTER_NEAREST) - return fallback_boxes (dst, pattern, boxes); - - switch (pattern->extend) { - default: - case CAIRO_EXTEND_NONE: - case CAIRO_EXTEND_REFLECT: - case CAIRO_EXTEND_PAD: - return fallback_boxes (dst, pattern, boxes); - - case CAIRO_EXTEND_REPEAT: /* XXX Use tiling */ - return fallback_boxes (dst, pattern, boxes); - } -} - -/* the mid-level: converts boxes into drawing operations */ - -struct _box_data { - Display *dpy; - cairo_xlib_surface_t *dst; - cairo_surface_t *src; - GC gc; - int tx, ty; - int width, height; -}; - -static cairo_bool_t source_contains_box (cairo_box_t *box, void *closure) -{ - struct _box_data *data = closure; - - /* The box is pixel-aligned so the truncation is safe. */ - return - _cairo_fixed_integer_part (box->p1.x) + data->tx >= 0 && - _cairo_fixed_integer_part (box->p1.y) + data->ty >= 0 && - _cairo_fixed_integer_part (box->p2.x) + data->tx <= data->width && - _cairo_fixed_integer_part (box->p2.y) + data->ty <= data->height; -} - -static cairo_bool_t image_upload_box (cairo_box_t *box, void *closure) -{ - const struct _box_data *iub = closure; - int x = _cairo_fixed_integer_part (box->p1.x); - int y = _cairo_fixed_integer_part (box->p1.y); - int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); - int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); - - return _cairo_xlib_surface_draw_image (iub->dst, - (cairo_image_surface_t *)iub->src, - x + iub->tx, y + iub->ty, - width, height, - x, y) == CAIRO_STATUS_SUCCESS; -} - -static cairo_bool_t -surface_matches_image_format (cairo_xlib_surface_t *surface, - cairo_image_surface_t *image) -{ - cairo_format_masks_t format; - - return (_pixman_format_to_masks (image->pixman_format, &format) && - (format.alpha_mask == surface->a_mask || surface->a_mask == 0) && - (format.red_mask == surface->r_mask || surface->r_mask == 0) && - (format.green_mask == surface->g_mask || surface->g_mask == 0) && - (format.blue_mask == surface->b_mask || surface->b_mask == 0)); -} - -static cairo_status_t -upload_image_inplace (cairo_xlib_surface_t *dst, - const cairo_pattern_t *source, - cairo_boxes_t *boxes) -{ - const cairo_surface_pattern_t *pattern; - struct _box_data iub; - cairo_image_surface_t *image; - - if (source->type != CAIRO_PATTERN_TYPE_SURFACE) - return CAIRO_INT_STATUS_UNSUPPORTED; - - pattern = (const cairo_surface_pattern_t *) source; - if (pattern->surface->type != CAIRO_SURFACE_TYPE_IMAGE) - return CAIRO_INT_STATUS_UNSUPPORTED; - - image = (cairo_image_surface_t *) pattern->surface; - if (image->format == CAIRO_FORMAT_INVALID) - return CAIRO_INT_STATUS_UNSUPPORTED; - - if (image->depth != dst->depth) - return CAIRO_INT_STATUS_UNSUPPORTED; - - if (! surface_matches_image_format (dst, image)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - /* XXX subsurface */ - - if (! _cairo_matrix_is_integer_translation (&source->matrix, - &iub.tx, &iub.ty)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - iub.dst = dst; - iub.src = &image->base; - iub.width = image->width; - iub.height = image->height; - - /* First check that the data is entirely within the image */ - if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &iub)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - if (! _cairo_boxes_for_each_box (boxes, image_upload_box, &iub)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_bool_t copy_box (cairo_box_t *box, void *closure) -{ - const struct _box_data *cb = closure; - int x = _cairo_fixed_integer_part (box->p1.x); - int y = _cairo_fixed_integer_part (box->p1.y); - int width = _cairo_fixed_integer_part (box->p2.x - box->p1.x); - int height = _cairo_fixed_integer_part (box->p2.y - box->p1.y); - - XCopyArea (cb->dpy, - ((cairo_xlib_surface_t *)cb->src)->drawable, - cb->dst->drawable, - cb->gc, - x + cb->tx, y + cb->ty, - width, height, - x, y); - return TRUE; -} - -static cairo_status_t -copy_boxes (cairo_xlib_surface_t *dst, - const cairo_pattern_t *source, - cairo_boxes_t *boxes) -{ - const cairo_surface_pattern_t *pattern; - struct _box_data cb; - cairo_xlib_surface_t *src; - cairo_status_t status; - - if (source->type != CAIRO_PATTERN_TYPE_SURFACE) - return CAIRO_INT_STATUS_UNSUPPORTED; - - /* XXX subsurface */ - - pattern = (const cairo_surface_pattern_t *) source; - if (pattern->surface->backend->type != CAIRO_SURFACE_TYPE_XLIB) - return CAIRO_INT_STATUS_UNSUPPORTED; - - src = (cairo_xlib_surface_t *) pattern->surface; - if (src->depth != dst->depth) - return CAIRO_INT_STATUS_UNSUPPORTED; - - /* We can only have a single control for subwindow_mode on the - * GC. If we have a Window destination, we need to set ClipByChildren, - * but if we have a Window source, we need IncludeInferiors. If we have - * both a Window destination and source, we must fallback. There is - * no convenient way to detect if a drawable is a Pixmap or Window, - * therefore we can only rely on those surfaces that we created - * ourselves to be Pixmaps, and treat everything else as a potential - * Window. - */ - if (! src->owns_pixmap && ! dst->owns_pixmap) - return CAIRO_INT_STATUS_UNSUPPORTED; - - if (! _cairo_xlib_surface_same_screen (dst, src)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - if (! _cairo_matrix_is_integer_translation (&source->matrix, - &cb.tx, &cb.ty)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - cb.dpy = dst->display->display; - cb.dst = dst; - cb.src = &src->base; - cb.width = src->width; - cb.height = src->height; - - /* First check that the data is entirely within the image */ - if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &cb)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - status = _cairo_xlib_surface_get_gc (dst->display, dst, &cb.gc); - if (unlikely (status)) - return status; - - if (! src->owns_pixmap) { - XGCValues gcv; - - gcv.subwindow_mode = IncludeInferiors; - XChangeGC (dst->display->display, cb.gc, GCSubwindowMode, &gcv); - } - - status = CAIRO_STATUS_SUCCESS; - if (! _cairo_boxes_for_each_box (boxes, copy_box, &cb)) - status = CAIRO_INT_STATUS_UNSUPPORTED; - - if (! src->owns_pixmap) { - XGCValues gcv; - - gcv.subwindow_mode = ClipByChildren; - XChangeGC (dst->display->display, cb.gc, GCSubwindowMode, &gcv); - } - - _cairo_xlib_surface_put_gc (dst->display, dst, cb.gc); - - return status; -} - -static cairo_status_t -draw_boxes (cairo_composite_rectangles_t *extents, - cairo_boxes_t *boxes) -{ - cairo_xlib_surface_t *dst = (cairo_xlib_surface_t *)extents->surface; - cairo_operator_t op = extents->op; - const cairo_pattern_t *src = &extents->source_pattern.base; - cairo_int_status_t status; - - if (boxes->num_boxes == 0 && extents->is_bounded) - return CAIRO_STATUS_SUCCESS; - - if (! boxes->is_pixel_aligned) - return CAIRO_INT_STATUS_UNSUPPORTED; - - if (op == CAIRO_OPERATOR_CLEAR) - op = CAIRO_OPERATOR_SOURCE; - - if (op == CAIRO_OPERATOR_OVER && - _cairo_pattern_is_opaque (src, &extents->bounded)) - op = CAIRO_OPERATOR_SOURCE; - - if (dst->base.is_clear && op == CAIRO_OPERATOR_OVER) - op = CAIRO_OPERATOR_SOURCE; - - if (op != CAIRO_OPERATOR_SOURCE) - return CAIRO_INT_STATUS_UNSUPPORTED; - - status = acquire (dst); - if (unlikely (status)) - return status; - - if (src->type == CAIRO_PATTERN_TYPE_SOLID) { - status = _cairo_xlib_core_fill_boxes - (dst, &((cairo_solid_pattern_t *) src)->color, boxes); - } else { - status = upload_image_inplace (dst, src, boxes); - if (status == CAIRO_INT_STATUS_UNSUPPORTED) - status = copy_boxes (dst, src, boxes); - if (status == CAIRO_INT_STATUS_UNSUPPORTED) - status = render_boxes (dst, src, boxes); - } - - release (dst); - - return status; -} - -/* high-level compositor interface */ - -static cairo_int_status_t -_cairo_xlib_core_compositor_paint (const cairo_compositor_t *compositor, - cairo_composite_rectangles_t *extents) -{ - cairo_int_status_t status; - - status = CAIRO_INT_STATUS_UNSUPPORTED; - if (_cairo_clip_is_region (extents->clip)) { - cairo_boxes_t boxes; - - _cairo_clip_steal_boxes (extents->clip, &boxes); - status = draw_boxes (extents, &boxes); - _cairo_clip_unsteal_boxes (extents->clip, &boxes); - } - - return status; -} - -static cairo_int_status_t -_cairo_xlib_core_compositor_stroke (const cairo_compositor_t *compositor, - cairo_composite_rectangles_t *extents, - const cairo_path_fixed_t *path, - const cairo_stroke_style_t *style, - const cairo_matrix_t *ctm, - const cairo_matrix_t *ctm_inverse, - double tolerance, - cairo_antialias_t antialias) -{ - cairo_int_status_t status; - - status = CAIRO_INT_STATUS_UNSUPPORTED; - if (extents->clip->path == NULL && - _cairo_path_fixed_stroke_is_rectilinear (path)) { - cairo_boxes_t boxes; - - _cairo_boxes_init_with_clip (&boxes, extents->clip); - status = _cairo_path_fixed_stroke_rectilinear_to_boxes (path, - style, - ctm, - antialias, - &boxes); - if (likely (status == CAIRO_INT_STATUS_SUCCESS)) - status = draw_boxes (extents, &boxes); - _cairo_boxes_fini (&boxes); - } - - return status; -} - -static cairo_int_status_t -_cairo_xlib_core_compositor_fill (const cairo_compositor_t *compositor, - cairo_composite_rectangles_t *extents, - const cairo_path_fixed_t *path, - cairo_fill_rule_t fill_rule, - double tolerance, - cairo_antialias_t antialias) -{ - cairo_int_status_t status; - - status = CAIRO_INT_STATUS_UNSUPPORTED; - if (extents->clip->path == NULL && - _cairo_path_fixed_fill_is_rectilinear (path)) { - cairo_boxes_t boxes; - - _cairo_boxes_init_with_clip (&boxes, extents->clip); - status = _cairo_path_fixed_fill_rectilinear_to_boxes (path, - fill_rule, - antialias, - &boxes); - if (likely (status == CAIRO_INT_STATUS_SUCCESS)) - status = draw_boxes (extents, &boxes); - _cairo_boxes_fini (&boxes); - } - - return status; -} - -const cairo_compositor_t * -_cairo_xlib_core_compositor_get (void) -{ - static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT; - static cairo_compositor_t compositor; - - if (_cairo_atomic_init_once_enter(&once)) { - compositor.delegate = _cairo_xlib_fallback_compositor_get (); - - compositor.paint = _cairo_xlib_core_compositor_paint; - compositor.mask = NULL; - compositor.fill = _cairo_xlib_core_compositor_fill; - compositor.stroke = _cairo_xlib_core_compositor_stroke; - compositor.glyphs = NULL; /* XXX PolyGlyph? */ - - _cairo_atomic_init_once_leave(&once); - } - - return &compositor; -} - -#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ |