diff options
Diffstat (limited to 'libs/cairo-1.16.0/src/test-base-compositor-surface.c')
| -rw-r--r-- | libs/cairo-1.16.0/src/test-base-compositor-surface.c | 824 |
1 files changed, 824 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/src/test-base-compositor-surface.c b/libs/cairo-1.16.0/src/test-base-compositor-surface.c new file mode 100644 index 0000000..ff84b10 --- /dev/null +++ b/libs/cairo-1.16.0/src/test-base-compositor-surface.c @@ -0,0 +1,824 @@ +/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ +/* 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> + * Joonas Pihlaja <jpihlaja@cc.helsinki.fi> + * Chris Wilson <chris@chris-wilson.co.uk> + */ + +#include "cairoint.h" + +#include "test-compositor-surface-private.h" + +#include "cairo-clip-private.h" +#include "cairo-composite-rectangles-private.h" +#include "cairo-compositor-private.h" +#include "cairo-error-private.h" +#include "cairo-image-surface-private.h" +#include "cairo-region-private.h" +#include "cairo-traps-private.h" + +/* The intention is that this is a surface that just works, and most + * important of all does not try to be clever! + */ + +typedef cairo_int_status_t +(*draw_func_t) (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents); + +static pixman_op_t +_pixman_operator (cairo_operator_t op) +{ + switch ((int) op) { + case CAIRO_OPERATOR_CLEAR: + return PIXMAN_OP_CLEAR; + + case CAIRO_OPERATOR_SOURCE: + return PIXMAN_OP_SRC; + case CAIRO_OPERATOR_OVER: + return PIXMAN_OP_OVER; + case CAIRO_OPERATOR_IN: + return PIXMAN_OP_IN; + case CAIRO_OPERATOR_OUT: + return PIXMAN_OP_OUT; + case CAIRO_OPERATOR_ATOP: + return PIXMAN_OP_ATOP; + + case CAIRO_OPERATOR_DEST: + return PIXMAN_OP_DST; + case CAIRO_OPERATOR_DEST_OVER: + return PIXMAN_OP_OVER_REVERSE; + case CAIRO_OPERATOR_DEST_IN: + return PIXMAN_OP_IN_REVERSE; + case CAIRO_OPERATOR_DEST_OUT: + return PIXMAN_OP_OUT_REVERSE; + case CAIRO_OPERATOR_DEST_ATOP: + return PIXMAN_OP_ATOP_REVERSE; + + case CAIRO_OPERATOR_XOR: + return PIXMAN_OP_XOR; + case CAIRO_OPERATOR_ADD: + return PIXMAN_OP_ADD; + case CAIRO_OPERATOR_SATURATE: + return PIXMAN_OP_SATURATE; + + case CAIRO_OPERATOR_MULTIPLY: + return PIXMAN_OP_MULTIPLY; + case CAIRO_OPERATOR_SCREEN: + return PIXMAN_OP_SCREEN; + case CAIRO_OPERATOR_OVERLAY: + return PIXMAN_OP_OVERLAY; + case CAIRO_OPERATOR_DARKEN: + return PIXMAN_OP_DARKEN; + case CAIRO_OPERATOR_LIGHTEN: + return PIXMAN_OP_LIGHTEN; + case CAIRO_OPERATOR_COLOR_DODGE: + return PIXMAN_OP_COLOR_DODGE; + case CAIRO_OPERATOR_COLOR_BURN: + return PIXMAN_OP_COLOR_BURN; + case CAIRO_OPERATOR_HARD_LIGHT: + return PIXMAN_OP_HARD_LIGHT; + case CAIRO_OPERATOR_SOFT_LIGHT: + return PIXMAN_OP_SOFT_LIGHT; + case CAIRO_OPERATOR_DIFFERENCE: + return PIXMAN_OP_DIFFERENCE; + case CAIRO_OPERATOR_EXCLUSION: + return PIXMAN_OP_EXCLUSION; + case CAIRO_OPERATOR_HSL_HUE: + return PIXMAN_OP_HSL_HUE; + case CAIRO_OPERATOR_HSL_SATURATION: + return PIXMAN_OP_HSL_SATURATION; + case CAIRO_OPERATOR_HSL_COLOR: + return PIXMAN_OP_HSL_COLOR; + case CAIRO_OPERATOR_HSL_LUMINOSITY: + return PIXMAN_OP_HSL_LUMINOSITY; + + default: + ASSERT_NOT_REACHED; + return PIXMAN_OP_OVER; + } +} + +static cairo_image_surface_t * +create_composite_mask (cairo_image_surface_t *dst, + void *draw_closure, + draw_func_t draw_func, + const cairo_composite_rectangles_t *extents) +{ + cairo_image_surface_t *surface; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + surface = (cairo_image_surface_t *) + _cairo_image_surface_create_with_pixman_format (NULL, PIXMAN_a8, + extents->bounded.width, + extents->bounded.height, + 0); + if (unlikely (surface->base.status)) + return surface; + + status = draw_func (surface, draw_closure, + CAIRO_OPERATOR_ADD, &_cairo_pattern_white.base, + extents->bounded.x, extents->bounded.y, + &extents->bounded); + if (unlikely (status)) + goto error; + + status = _cairo_clip_combine_with_surface (extents->clip, + &surface->base, + extents->bounded.x, + extents->bounded.y); + if (unlikely (status)) + goto error; + + return surface; + +error: + cairo_surface_destroy (&surface->base); + return (cairo_image_surface_t *)_cairo_surface_create_in_error (status); +} + +/* Handles compositing with a clip surface when the operator allows + * us to combine the clip with the mask + */ +static cairo_status_t +clip_and_composite_with_mask (const cairo_composite_rectangles_t*extents, + draw_func_t draw_func, + void *draw_closure) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)extents->surface; + cairo_image_surface_t *mask; + pixman_image_t *src; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + int src_x, src_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + mask = create_composite_mask (dst, draw_closure, draw_func, extents); + if (unlikely (mask->base.status)) + return mask->base.status; + + src = _pixman_image_for_pattern (dst, + &extents->source_pattern.base, FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + if (unlikely (src == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto error; + } + + pixman_image_composite32 (_pixman_operator (extents->op), + src, mask->pixman_image, dst->pixman_image, + extents->bounded.x + src_x, + extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + pixman_image_unref (src); +error: + cairo_surface_destroy (&mask->base); + return status; +} + +/* Handles compositing with a clip surface when we have to do the operation + * in two pieces and combine them together. + */ +static cairo_status_t +clip_and_composite_combine (const cairo_composite_rectangles_t*extents, + draw_func_t draw_func, + void *draw_closure) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)extents->surface; + cairo_image_surface_t *tmp, *clip; + int clip_x, clip_y; + cairo_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + tmp = (cairo_image_surface_t *) + _cairo_image_surface_create_with_pixman_format (NULL, + dst->pixman_format, + extents->bounded.width, + extents->bounded.height, + 0); + if (unlikely (tmp->base.status)) + return tmp->base.status; + + pixman_image_composite32 (PIXMAN_OP_SRC, + dst->pixman_image, NULL, tmp->pixman_image, + extents->bounded.x, extents->bounded.y, + 0, 0, + 0, 0, + extents->bounded.width, extents->bounded.height); + + status = draw_func (tmp, draw_closure, + extents->op, &extents->source_pattern.base, + extents->bounded.x, extents->bounded.y, + &extents->bounded); + if (unlikely (status)) + goto error; + + clip = (cairo_image_surface_t *) + _cairo_clip_get_surface (extents->clip, &dst->base, &clip_x, &clip_y); + if (unlikely (clip->base.status)) + goto error; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + clip->pixman_image, NULL, dst->pixman_image, + extents->bounded.x - clip_x, extents->bounded.y - clip_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + pixman_image_composite32 (PIXMAN_OP_ADD, + tmp->pixman_image, clip->pixman_image, dst->pixman_image, + 0, 0, + extents->bounded.x - clip_x, extents->bounded.y - clip_y, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + cairo_surface_destroy (&clip->base); + + error: + cairo_surface_destroy (&tmp->base); + + return status; +} + +/* Handles compositing for %CAIRO_OPERATOR_SOURCE, which is special; it's + * defined as (src IN mask IN clip) ADD (dst OUT (mask IN clip)) + */ +static cairo_status_t +clip_and_composite_source (const cairo_composite_rectangles_t *extents, + draw_func_t draw_func, + void *draw_closure) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)extents->surface; + cairo_image_surface_t *mask; + pixman_image_t *src; + int src_x, src_y; + cairo_status_t status = CAIRO_STATUS_SUCCESS; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + mask = create_composite_mask (dst, draw_closure, draw_func, extents); + if (unlikely (mask->base.status)) + return mask->base.status; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask->pixman_image, NULL, dst->pixman_image, + 0, 0, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + src = _pixman_image_for_pattern (dst, + &extents->source_pattern.base, FALSE, + &extents->bounded, + &extents->source_sample_area, + &src_x, &src_y); + if (unlikely (src == NULL)) { + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + goto error; + } + + pixman_image_composite32 (PIXMAN_OP_ADD, + src, mask->pixman_image, dst->pixman_image, + extents->bounded.x + src_x, extents->bounded.y + src_y, + 0, 0, + extents->bounded.x, extents->bounded.y, + extents->bounded.width, extents->bounded.height); + + pixman_image_unref (src); + +error: + cairo_surface_destroy (&mask->base); + return status; +} + +static cairo_status_t +fixup_unbounded (const cairo_composite_rectangles_t *extents) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *)extents->surface; + pixman_image_t *mask; + int mask_x, mask_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + if (! _cairo_clip_is_region (extents->clip)) { + cairo_image_surface_t *clip; + + clip = (cairo_image_surface_t *) + _cairo_clip_get_surface (extents->clip, &dst->base, + &mask_x, &mask_y); + if (unlikely (clip->base.status)) + return clip->base.status; + + mask = pixman_image_ref (clip->pixman_image); + cairo_surface_destroy (&clip->base); + } else { + mask_x = mask_y = 0; + mask = _pixman_image_for_color (CAIRO_COLOR_WHITE); + if (unlikely (mask == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + /* top */ + if (extents->bounded.y != extents->unbounded.y) { + int x = extents->unbounded.x; + int y = extents->unbounded.y; + int width = extents->unbounded.width; + int height = extents->bounded.y - y; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask, NULL, dst->pixman_image, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + /* left */ + if (extents->bounded.x != extents->unbounded.x) { + int x = extents->unbounded.x; + int y = extents->bounded.y; + int width = extents->bounded.x - x; + int height = extents->bounded.height; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask, NULL, dst->pixman_image, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + /* right */ + if (extents->bounded.x + extents->bounded.width != extents->unbounded.x + extents->unbounded.width) { + int x = extents->bounded.x + extents->bounded.width; + int y = extents->bounded.y; + int width = extents->unbounded.x + extents->unbounded.width - x; + int height = extents->bounded.height; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask, NULL, dst->pixman_image, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + /* bottom */ + if (extents->bounded.y + extents->bounded.height != extents->unbounded.y + extents->unbounded.height) { + int x = extents->unbounded.x; + int y = extents->bounded.y + extents->bounded.height; + int width = extents->unbounded.width; + int height = extents->unbounded.y + extents->unbounded.height - y; + + pixman_image_composite32 (PIXMAN_OP_OUT_REVERSE, + mask, NULL, dst->pixman_image, + x - mask_x, y - mask_y, + 0, 0, + x, y, + width, height); + } + + pixman_image_unref (mask); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +set_clip_region (cairo_composite_rectangles_t *extents) +{ + cairo_image_surface_t *dst = (cairo_image_surface_t *) extents->surface; + cairo_region_t *region = _cairo_clip_get_region (extents->clip); + pixman_region32_t *rgn = region ? ®ion->rgn : NULL; + if (! pixman_image_set_clip_region32 (dst->pixman_image, rgn)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_status_t +clip_and_composite (cairo_composite_rectangles_t *extents, + draw_func_t draw_func, + void *draw_closure) +{ + cairo_status_t status; + + status = set_clip_region (extents); + if (unlikely (status)) + return status; + + if (extents->op == CAIRO_OPERATOR_SOURCE) { + status = clip_and_composite_source (extents, draw_func, draw_closure); + } else { + if (extents->op == CAIRO_OPERATOR_CLEAR) { + extents->source_pattern.solid = _cairo_pattern_white; + extents->op = CAIRO_OPERATOR_DEST_OUT; + } + if (! _cairo_clip_is_region (extents->clip)) { + if (extents->is_bounded) + status = clip_and_composite_with_mask (extents, draw_func, draw_closure); + else + status = clip_and_composite_combine (extents, draw_func, draw_closure); + } else { + status = draw_func ((cairo_image_surface_t *) extents->surface, + draw_closure, + extents->op, + &extents->source_pattern.base, + 0, 0, + &extents->bounded); + } + } + + if (status == CAIRO_STATUS_SUCCESS && ! extents->is_bounded) + status = fixup_unbounded (extents); + + return status; +} + +/* high-level compositor interface */ + +static cairo_int_status_t +composite_paint (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents) +{ + cairo_rectangle_int_t sample; + pixman_image_t *src; + int src_x, src_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + _cairo_pattern_sampled_area (pattern, extents, &sample); + src = _pixman_image_for_pattern (dst, + pattern, FALSE, + extents, &sample, + &src_x, &src_y); + if (unlikely (src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + TRACE ((stderr, "%s: src=(%d, %d), dst=(%d, %d) size=%dx%d\n", __FUNCTION__, + extents->x + src_x, extents->y + src_y, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height)); + + pixman_image_composite32 (_pixman_operator (op), + src, NULL, dst->pixman_image, + extents->x + src_x, extents->y + src_y, + 0, 0, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + pixman_image_unref (src); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +base_compositor_paint (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + TRACE ((stderr, "%s\n", __FUNCTION__)); + return clip_and_composite (extents, composite_paint, NULL); +} + +static cairo_int_status_t +composite_mask (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents) +{ + cairo_rectangle_int_t sample; + pixman_image_t *src, *mask; + int src_x, src_y; + int mask_x, mask_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + _cairo_pattern_sampled_area (pattern, extents, &sample); + src = _pixman_image_for_pattern (dst, pattern, FALSE, + extents, &sample, + &src_x, &src_y); + if (unlikely (src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_pattern_sampled_area (closure, extents, &sample); + mask = _pixman_image_for_pattern (dst, closure, TRUE, + extents, &sample, + &mask_x, &mask_y); + if (unlikely (mask == NULL)) { + pixman_image_unref (src); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + pixman_image_composite32 (_pixman_operator (op), + src, mask, dst->pixman_image, + extents->x + src_x, extents->y + src_y, + extents->x + mask_x, extents->y + mask_y, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + pixman_image_unref (mask); + pixman_image_unref (src); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +base_compositor_mask (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents) +{ + TRACE ((stderr, "%s\n", __FUNCTION__)); + return clip_and_composite (extents, composite_mask, &extents->mask_pattern.base); +} + +typedef struct { + cairo_traps_t traps; + cairo_antialias_t antialias; +} composite_traps_info_t; + +static cairo_int_status_t +composite_traps (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents) +{ + composite_traps_info_t *info = closure; + cairo_rectangle_int_t sample; + pixman_image_t *src, *mask; + int src_x, src_y; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + _cairo_pattern_sampled_area (pattern, extents, &sample); + src = _pixman_image_for_pattern (dst, pattern, FALSE, + extents, &sample, + &src_x, &src_y); + if (unlikely (src == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + mask = pixman_image_create_bits (info->antialias == CAIRO_ANTIALIAS_NONE ? PIXMAN_a1 : PIXMAN_a8, + extents->width, extents->height, + NULL, 0); + if (unlikely (mask == NULL)) { + pixman_image_unref (src); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + _pixman_image_add_traps (mask, extents->x, extents->y, &info->traps); + pixman_image_composite32 (_pixman_operator (op), + src, mask, dst->pixman_image, + extents->x + src_x - dst_x, extents->y + src_y - dst_y, + 0, 0, + extents->x - dst_x, extents->y - dst_y, + extents->width, extents->height); + + pixman_image_unref (mask); + pixman_image_unref (src); + + return CAIRO_STATUS_SUCCESS; +} + +static cairo_int_status_t +trim_extents_to_traps (cairo_composite_rectangles_t *extents, + cairo_traps_t *traps) +{ + cairo_box_t box; + + /* X trims the affected area to the extents of the trapezoids, so + * we need to compensate when fixing up the unbounded area. + */ + _cairo_traps_extents (traps, &box); + return _cairo_composite_rectangles_intersect_mask_extents (extents, &box); +} + +static cairo_int_status_t +base_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) +{ + composite_traps_info_t info; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + info.antialias = antialias; + _cairo_traps_init_with_clip (&info.traps, extents->clip); + status = _cairo_path_fixed_stroke_polygon_to_traps (path, style, + ctm, ctm_inverse, + tolerance, + &info.traps); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = trim_extents_to_traps (extents, &info.traps); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite (extents, composite_traps, &info); + _cairo_traps_fini (&info.traps); + + return status; +} + +static cairo_int_status_t +base_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) +{ + composite_traps_info_t info; + cairo_int_status_t status; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + info.antialias = antialias; + _cairo_traps_init_with_clip (&info.traps, extents->clip); + status = _cairo_path_fixed_fill_to_traps (path, + fill_rule, tolerance, + &info.traps); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = trim_extents_to_traps (extents, &info.traps); + if (likely (status == CAIRO_INT_STATUS_SUCCESS)) + status = clip_and_composite (extents, composite_traps, &info); + _cairo_traps_fini (&info.traps); + + return status; +} + +static cairo_int_status_t +composite_glyphs (cairo_image_surface_t *dst, + void *closure, + cairo_operator_t op, + const cairo_pattern_t *pattern, + int dst_x, + int dst_y, + const cairo_rectangle_int_t *extents) +{ + cairo_composite_glyphs_info_t *info = closure; + pixman_image_t *mask; + cairo_status_t status; + int i; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + + mask = pixman_image_create_bits (PIXMAN_a8, + extents->width, extents->height, + NULL, 0); + if (unlikely (mask == NULL)) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + status = CAIRO_STATUS_SUCCESS; + _cairo_scaled_font_freeze_cache (info->font); + for (i = 0; i < info->num_glyphs; i++) { + cairo_image_surface_t *glyph_surface; + cairo_scaled_glyph_t *scaled_glyph; + unsigned long glyph_index = info->glyphs[i].index; + int x, y; + + status = _cairo_scaled_glyph_lookup (info->font, glyph_index, + CAIRO_SCALED_GLYPH_INFO_SURFACE, + &scaled_glyph); + + if (unlikely (status)) + break; + + glyph_surface = scaled_glyph->surface; + if (glyph_surface->width && glyph_surface->height) { + /* round glyph locations to the nearest pixel */ + /* XXX: FRAGILE: We're ignoring device_transform scaling here. A bug? */ + x = _cairo_lround (info->glyphs[i].x - + glyph_surface->base.device_transform.x0); + y = _cairo_lround (info->glyphs[i].y - + glyph_surface->base.device_transform.y0); + + pixman_image_composite32 (PIXMAN_OP_ADD, + glyph_surface->pixman_image, NULL, mask, + 0, 0, + 0, 0, + x - extents->x, y - extents->y, + glyph_surface->width, + glyph_surface->height); + } + } + _cairo_scaled_font_thaw_cache (info->font); + + if (status == CAIRO_STATUS_SUCCESS) { + cairo_rectangle_int_t sample; + pixman_image_t *src; + int src_x, src_y; + + _cairo_pattern_sampled_area (pattern, extents, &sample); + src = _pixman_image_for_pattern (dst, pattern, FALSE, + extents, &sample, + &src_x, &src_y); + if (src != NULL) { + dst_x = extents->x - dst_x; + dst_y = extents->y - dst_y; + pixman_image_composite32 (_pixman_operator (op), + src, mask, dst->pixman_image, + src_x + dst_x, src_y + dst_y, + 0, 0, + dst_x, dst_y, + extents->width, extents->height); + pixman_image_unref (src); + } else + status = _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + pixman_image_unref (mask); + + return status; +} + +static cairo_int_status_t +base_compositor_glyphs (const cairo_compositor_t *_compositor, + cairo_composite_rectangles_t *extents, + cairo_scaled_font_t *scaled_font, + cairo_glyph_t *glyphs, + int num_glyphs, + cairo_bool_t overlap) +{ + cairo_composite_glyphs_info_t info; + + info.font = scaled_font; + info.glyphs = glyphs; + info.num_glyphs = num_glyphs; + + TRACE ((stderr, "%s\n", __FUNCTION__)); + return clip_and_composite (extents, composite_glyphs, &info); +} + +static const cairo_compositor_t base_compositor = { + &__cairo_no_compositor, + + base_compositor_paint, + base_compositor_mask, + base_compositor_stroke, + base_compositor_fill, + base_compositor_glyphs, +}; + +cairo_surface_t * +_cairo_test_base_compositor_surface_create (cairo_content_t content, + int width, + int height) +{ + return test_compositor_surface_create (&base_compositor, + content, width, height); +} |