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Diffstat (limited to 'libs/cairo-1.16.0/src/cairo-gl-traps-compositor.c')
-rw-r--r--libs/cairo-1.16.0/src/cairo-gl-traps-compositor.c531
1 files changed, 531 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/src/cairo-gl-traps-compositor.c b/libs/cairo-1.16.0/src/cairo-gl-traps-compositor.c
new file mode 100644
index 0000000..7938c5b
--- /dev/null
+++ b/libs/cairo-1.16.0/src/cairo-gl-traps-compositor.c
@@ -0,0 +1,531 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2009 Eric Anholt
+ * Copyright © 2009 Chris Wilson
+ * Copyright © 2005,2010 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 Red Hat, Inc.
+ *
+ * Contributor(s):
+ * Benjamin Otte <otte@gnome.org>
+ * Carl Worth <cworth@cworth.org>
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ * Eric Anholt <eric@anholt.net>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-gl-private.h"
+
+#include "cairo-composite-rectangles-private.h"
+#include "cairo-compositor-private.h"
+#include "cairo-default-context-private.h"
+#include "cairo-error-private.h"
+#include "cairo-image-surface-private.h"
+#include "cairo-spans-compositor-private.h"
+#include "cairo-surface-backend-private.h"
+#include "cairo-surface-offset-private.h"
+
+static cairo_int_status_t
+acquire (void *abstract_dst)
+{
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+release (void *abstract_dst)
+{
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+set_clip_region (void *_surface,
+ cairo_region_t *region)
+{
+ cairo_gl_surface_t *surface = _surface;
+
+ surface->clip_region = region;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+draw_image_boxes (void *_dst,
+ cairo_image_surface_t *image,
+ cairo_boxes_t *boxes,
+ int dx, int dy)
+{
+ cairo_gl_surface_t *dst = _dst;
+ struct _cairo_boxes_chunk *chunk;
+ int i;
+
+ for (chunk = &boxes->chunks; chunk; chunk = chunk->next) {
+ for (i = 0; i < chunk->count; i++) {
+ cairo_box_t *b = &chunk->base[i];
+ int x = _cairo_fixed_integer_part (b->p1.x);
+ int y = _cairo_fixed_integer_part (b->p1.y);
+ int w = _cairo_fixed_integer_part (b->p2.x) - x;
+ int h = _cairo_fixed_integer_part (b->p2.y) - y;
+ cairo_status_t status;
+
+ status = _cairo_gl_surface_draw_image (dst, image,
+ x + dx, y + dy,
+ w, h,
+ x, y,
+ TRUE);
+ if (unlikely (status))
+ return status;
+ }
+ }
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+emit_aligned_boxes (cairo_gl_context_t *ctx,
+ const cairo_boxes_t *boxes)
+{
+ const struct _cairo_boxes_chunk *chunk;
+ cairo_gl_emit_rect_t emit = _cairo_gl_context_choose_emit_rect (ctx);
+ int i;
+
+ for (chunk = &boxes->chunks; chunk; chunk = chunk->next) {
+ for (i = 0; i < chunk->count; i++) {
+ int x1 = _cairo_fixed_integer_part (chunk->base[i].p1.x);
+ int y1 = _cairo_fixed_integer_part (chunk->base[i].p1.y);
+ int x2 = _cairo_fixed_integer_part (chunk->base[i].p2.x);
+ int y2 = _cairo_fixed_integer_part (chunk->base[i].p2.y);
+ emit (ctx, x1, y1, x2, y2);
+ }
+ }
+}
+
+static cairo_int_status_t
+fill_boxes (void *_dst,
+ cairo_operator_t op,
+ const cairo_color_t *color,
+ cairo_boxes_t *boxes)
+{
+ cairo_gl_composite_t setup;
+ cairo_gl_context_t *ctx;
+ cairo_int_status_t status;
+
+ status = _cairo_gl_composite_init (&setup, op, _dst, FALSE);
+ if (unlikely (status))
+ goto FAIL;
+
+ _cairo_gl_composite_set_solid_source (&setup, color);
+
+ status = _cairo_gl_composite_begin (&setup, &ctx);
+ if (unlikely (status))
+ goto FAIL;
+
+ emit_aligned_boxes (ctx, boxes);
+ status = _cairo_gl_context_release (ctx, CAIRO_STATUS_SUCCESS);
+
+FAIL:
+ _cairo_gl_composite_fini (&setup);
+ return status;
+}
+
+static cairo_int_status_t
+composite_boxes (void *_dst,
+ cairo_operator_t op,
+ cairo_surface_t *abstract_src,
+ cairo_surface_t *abstract_mask,
+ int src_x,
+ int src_y,
+ int mask_x,
+ int mask_y,
+ int dst_x,
+ int dst_y,
+ cairo_boxes_t *boxes,
+ const cairo_rectangle_int_t *extents)
+{
+ cairo_gl_composite_t setup;
+ cairo_gl_context_t *ctx;
+ cairo_int_status_t status;
+
+ status = _cairo_gl_composite_init (&setup, op, _dst, FALSE);
+ if (unlikely (status))
+ goto FAIL;
+
+ _cairo_gl_composite_set_source_operand (&setup,
+ source_to_operand (abstract_src));
+ _cairo_gl_operand_translate (&setup.src, dst_x-src_x, dst_y-src_y);
+
+ _cairo_gl_composite_set_mask_operand (&setup,
+ source_to_operand (abstract_mask));
+ _cairo_gl_operand_translate (&setup.mask, dst_x-mask_x, dst_y-mask_y);
+
+ status = _cairo_gl_composite_begin (&setup, &ctx);
+ if (unlikely (status))
+ goto FAIL;
+
+ emit_aligned_boxes (ctx, boxes);
+ status = _cairo_gl_context_release (ctx, CAIRO_STATUS_SUCCESS);
+
+FAIL:
+ _cairo_gl_composite_fini (&setup);
+ return status;
+}
+
+static cairo_int_status_t
+composite (void *_dst,
+ cairo_operator_t op,
+ cairo_surface_t *abstract_src,
+ cairo_surface_t *abstract_mask,
+ int src_x,
+ int src_y,
+ int mask_x,
+ int mask_y,
+ int dst_x,
+ int dst_y,
+ unsigned int width,
+ unsigned int height)
+{
+ cairo_gl_composite_t setup;
+ cairo_gl_context_t *ctx;
+ cairo_int_status_t status;
+
+ status = _cairo_gl_composite_init (&setup, op, _dst, FALSE);
+ if (unlikely (status))
+ goto FAIL;
+
+ _cairo_gl_composite_set_source_operand (&setup,
+ source_to_operand (abstract_src));
+ _cairo_gl_operand_translate (&setup.src, dst_x-src_x, dst_y-src_y);
+
+ _cairo_gl_composite_set_mask_operand (&setup,
+ source_to_operand (abstract_mask));
+ _cairo_gl_operand_translate (&setup.mask, dst_x-mask_x, dst_y-mask_y);
+
+ status = _cairo_gl_composite_begin (&setup, &ctx);
+ if (unlikely (status))
+ goto FAIL;
+
+ /* XXX clip */
+ _cairo_gl_context_emit_rect (ctx, dst_x, dst_y, dst_x+width, dst_y+height);
+ status = _cairo_gl_context_release (ctx, CAIRO_STATUS_SUCCESS);
+
+FAIL:
+ _cairo_gl_composite_fini (&setup);
+ return status;
+}
+
+static cairo_int_status_t
+lerp (void *dst,
+ cairo_surface_t *src,
+ cairo_surface_t *mask,
+ int src_x,
+ int src_y,
+ int mask_x,
+ int mask_y,
+ int dst_x,
+ int dst_y,
+ unsigned int width,
+ unsigned int height)
+{
+ cairo_int_status_t status;
+
+ /* we could avoid some repetition... */
+ status = composite (dst, CAIRO_OPERATOR_DEST_OUT, mask, NULL,
+ mask_x, mask_y,
+ 0, 0,
+ dst_x, dst_y,
+ width, height);
+ if (unlikely (status))
+ return status;
+
+ status = composite (dst, CAIRO_OPERATOR_ADD, src, mask,
+ src_x, src_y,
+ mask_x, mask_y,
+ dst_x, dst_y,
+ width, height);
+ if (unlikely (status))
+ return status;
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+traps_to_operand (void *_dst,
+ const cairo_rectangle_int_t *extents,
+ cairo_antialias_t antialias,
+ cairo_traps_t *traps,
+ cairo_gl_operand_t *operand,
+ int dst_x, int dst_y)
+{
+ pixman_format_code_t pixman_format;
+ pixman_image_t *pixman_image;
+ cairo_surface_t *image, *mask;
+ cairo_surface_pattern_t pattern;
+ cairo_status_t status;
+
+ pixman_format = antialias != CAIRO_ANTIALIAS_NONE ? PIXMAN_a8 : PIXMAN_a1;
+ pixman_image = pixman_image_create_bits (pixman_format,
+ extents->width,
+ extents->height,
+ NULL, 0);
+ if (unlikely (pixman_image == NULL))
+ return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+ _pixman_image_add_traps (pixman_image, extents->x, extents->y, traps);
+ image = _cairo_image_surface_create_for_pixman_image (pixman_image,
+ pixman_format);
+ if (unlikely (image->status)) {
+ pixman_image_unref (pixman_image);
+ return image->status;
+ }
+
+ mask = _cairo_surface_create_scratch (_dst,
+ CAIRO_CONTENT_COLOR_ALPHA,
+ extents->width,
+ extents->height,
+ NULL);
+ if (unlikely (mask->status)) {
+ cairo_surface_destroy (image);
+ return mask->status;
+ }
+
+ status = _cairo_gl_surface_draw_image ((cairo_gl_surface_t *)mask,
+ (cairo_image_surface_t *)image,
+ 0, 0,
+ extents->width, extents->height,
+ 0, 0,
+ TRUE);
+ cairo_surface_destroy (image);
+
+ if (unlikely (status))
+ goto error;
+
+ _cairo_pattern_init_for_surface (&pattern, mask);
+ cairo_matrix_init_translate (&pattern.base.matrix,
+ -extents->x+dst_x, -extents->y+dst_y);
+ pattern.base.filter = CAIRO_FILTER_NEAREST;
+ pattern.base.extend = CAIRO_EXTEND_NONE;
+ status = _cairo_gl_operand_init (operand, &pattern.base, _dst,
+ &_cairo_unbounded_rectangle,
+ &_cairo_unbounded_rectangle,
+ FALSE);
+ _cairo_pattern_fini (&pattern.base);
+
+ if (unlikely (status))
+ goto error;
+
+ operand->texture.owns_surface = (cairo_gl_surface_t *)mask;
+ return CAIRO_STATUS_SUCCESS;
+
+error:
+ cairo_surface_destroy (mask);
+ return status;
+}
+
+static cairo_int_status_t
+composite_traps (void *_dst,
+ cairo_operator_t op,
+ cairo_surface_t *abstract_src,
+ int src_x,
+ int src_y,
+ int dst_x,
+ int dst_y,
+ const cairo_rectangle_int_t *extents,
+ cairo_antialias_t antialias,
+ cairo_traps_t *traps)
+{
+ cairo_gl_composite_t setup;
+ cairo_gl_context_t *ctx;
+ cairo_int_status_t status;
+
+ status = _cairo_gl_composite_init (&setup, op, _dst, FALSE);
+ if (unlikely (status))
+ goto FAIL;
+
+ _cairo_gl_composite_set_source_operand (&setup,
+ source_to_operand (abstract_src));
+ _cairo_gl_operand_translate (&setup.src, -src_x-dst_x, -src_y-dst_y);
+ status = traps_to_operand (_dst, extents, antialias, traps, &setup.mask, dst_x, dst_y);
+ if (unlikely (status))
+ goto FAIL;
+
+ status = _cairo_gl_composite_begin (&setup, &ctx);
+ if (unlikely (status))
+ goto FAIL;
+
+ /* XXX clip */
+ _cairo_gl_context_emit_rect (ctx,
+ extents->x-dst_x, extents->y-dst_y,
+ extents->x-dst_x+extents->width,
+ extents->y-dst_y+extents->height);
+ status = _cairo_gl_context_release (ctx, CAIRO_STATUS_SUCCESS);
+
+FAIL:
+ _cairo_gl_composite_fini (&setup);
+ return status;
+}
+
+static cairo_gl_surface_t *
+tristrip_to_surface (void *_dst,
+ const cairo_rectangle_int_t *extents,
+ cairo_antialias_t antialias,
+ cairo_tristrip_t *strip)
+{
+ pixman_format_code_t pixman_format;
+ pixman_image_t *pixman_image;
+ cairo_surface_t *image, *mask;
+ cairo_status_t status;
+
+ pixman_format = antialias != CAIRO_ANTIALIAS_NONE ? PIXMAN_a8 : PIXMAN_a1,
+ pixman_image = pixman_image_create_bits (pixman_format,
+ extents->width,
+ extents->height,
+ NULL, 0);
+ if (unlikely (pixman_image == NULL))
+ return (cairo_gl_surface_t *)_cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+
+ _pixman_image_add_tristrip (pixman_image, extents->x, extents->y, strip);
+ image = _cairo_image_surface_create_for_pixman_image (pixman_image,
+ pixman_format);
+ if (unlikely (image->status)) {
+ pixman_image_unref (pixman_image);
+ return (cairo_gl_surface_t *)image;
+ }
+
+ mask = _cairo_surface_create_scratch (_dst,
+ CAIRO_CONTENT_COLOR_ALPHA,
+ extents->width,
+ extents->height,
+ NULL);
+ if (unlikely (mask->status)) {
+ cairo_surface_destroy (image);
+ return (cairo_gl_surface_t *)mask;
+ }
+
+ status = _cairo_gl_surface_draw_image ((cairo_gl_surface_t *)mask,
+ (cairo_image_surface_t *)image,
+ 0, 0,
+ extents->width, extents->height,
+ 0, 0,
+ TRUE);
+ cairo_surface_destroy (image);
+ if (unlikely (status)) {
+ cairo_surface_destroy (mask);
+ return (cairo_gl_surface_t*)_cairo_surface_create_in_error (status);
+ }
+
+ return (cairo_gl_surface_t*)mask;
+}
+
+static cairo_int_status_t
+composite_tristrip (void *_dst,
+ cairo_operator_t op,
+ cairo_surface_t *abstract_src,
+ int src_x,
+ int src_y,
+ int dst_x,
+ int dst_y,
+ const cairo_rectangle_int_t *extents,
+ cairo_antialias_t antialias,
+ cairo_tristrip_t *strip)
+{
+ cairo_gl_composite_t setup;
+ cairo_gl_context_t *ctx;
+ cairo_gl_surface_t *mask;
+ cairo_int_status_t status;
+
+ mask = tristrip_to_surface (_dst, extents, antialias, strip);
+ if (unlikely (mask->base.status))
+ return mask->base.status;
+
+ status = _cairo_gl_composite_init (&setup, op, _dst, FALSE);
+ if (unlikely (status))
+ goto FAIL;
+
+ _cairo_gl_composite_set_source_operand (&setup,
+ source_to_operand (abstract_src));
+
+ //_cairo_gl_composite_set_mask_surface (&setup, mask, 0, 0);
+
+ status = _cairo_gl_composite_begin (&setup, &ctx);
+ if (unlikely (status))
+ goto FAIL;
+
+ /* XXX clip */
+ _cairo_gl_context_emit_rect (ctx,
+ dst_x, dst_y,
+ dst_x+extents->width,
+ dst_y+extents->height);
+ status = _cairo_gl_context_release (ctx, CAIRO_STATUS_SUCCESS);
+
+FAIL:
+ _cairo_gl_composite_fini (&setup);
+ cairo_surface_destroy (&mask->base);
+ return status;
+}
+
+static cairo_int_status_t
+check_composite (const cairo_composite_rectangles_t *extents)
+{
+ if (! _cairo_gl_operator_is_supported (extents->op))
+ return UNSUPPORTED ("unsupported operator");
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+const cairo_compositor_t *
+_cairo_gl_traps_compositor_get (void)
+{
+ static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT;
+ static cairo_traps_compositor_t compositor;
+
+ if (_cairo_atomic_init_once_enter(&once)) {
+ _cairo_traps_compositor_init (&compositor, &_cairo_fallback_compositor);
+ compositor.acquire = acquire;
+ compositor.release = release;
+ compositor.set_clip_region = set_clip_region;
+ compositor.pattern_to_surface = _cairo_gl_pattern_to_source;
+ compositor.draw_image_boxes = draw_image_boxes;
+ //compositor.copy_boxes = copy_boxes;
+ compositor.fill_boxes = fill_boxes;
+ compositor.check_composite = check_composite;
+ compositor.composite = composite;
+ compositor.lerp = lerp;
+ //compositor.check_composite_boxes = check_composite_boxes;
+ compositor.composite_boxes = composite_boxes;
+ //compositor.check_composite_traps = check_composite_traps;
+ compositor.composite_traps = composite_traps;
+ //compositor.check_composite_tristrip = check_composite_traps;
+ compositor.composite_tristrip = composite_tristrip;
+ compositor.check_composite_glyphs = _cairo_gl_check_composite_glyphs;
+ compositor.composite_glyphs = _cairo_gl_composite_glyphs;
+
+ _cairo_atomic_init_once_leave(&once);
+ }
+
+ return &compositor.base;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-23 02:11:04 +0000