summaryrefslogtreecommitdiff
path: root/src/cairo-gl-spans-compositor.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/cairo-gl-spans-compositor.c')
-rw-r--r--src/cairo-gl-spans-compositor.c556
1 files changed, 0 insertions, 556 deletions
diff --git a/src/cairo-gl-spans-compositor.c b/src/cairo-gl-spans-compositor.c
deleted file mode 100644
index 0a4538a04..000000000
--- a/src/cairo-gl-spans-compositor.c
+++ /dev/null
@@ -1,556 +0,0 @@
-/* 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"
-
-typedef struct _cairo_gl_span_renderer {
- cairo_span_renderer_t base;
-
- cairo_gl_composite_t setup;
- double opacity;
-
- cairo_gl_emit_span_t emit;
-
- int xmin, xmax;
- int ymin, ymax;
-
- cairo_gl_context_t *ctx;
-} cairo_gl_span_renderer_t;
-
-static cairo_status_t
-_cairo_gl_bounded_opaque_spans (void *abstract_renderer,
- int y, int height,
- const cairo_half_open_span_t *spans,
- unsigned num_spans)
-{
- cairo_gl_span_renderer_t *r = abstract_renderer;
- cairo_gl_emit_span_t emit = r->emit;
-
- if (num_spans == 0)
- return CAIRO_STATUS_SUCCESS;
-
- do {
- if (spans[0].coverage) {
- emit (r->ctx,
- spans[0].x, y,
- spans[1].x, y + height,
- spans[0].coverage);
- }
-
- spans++;
- } while (--num_spans > 1);
-
- return CAIRO_STATUS_SUCCESS;
-}
-
-static cairo_status_t
-_cairo_gl_bounded_spans (void *abstract_renderer,
- int y, int height,
- const cairo_half_open_span_t *spans,
- unsigned num_spans)
-{
- cairo_gl_span_renderer_t *r = abstract_renderer;
- cairo_gl_emit_span_t emit = r->emit;
-
- if (num_spans == 0)
- return CAIRO_STATUS_SUCCESS;
-
- do {
- if (spans[0].coverage) {
- emit (r->ctx,
- spans[0].x, y,
- spans[1].x, y + height,
- r->opacity * spans[0].coverage);
- }
-
- spans++;
- } while (--num_spans > 1);
-
- return CAIRO_STATUS_SUCCESS;
-}
-
-static cairo_status_t
-_cairo_gl_unbounded_spans (void *abstract_renderer,
- int y, int height,
- const cairo_half_open_span_t *spans,
- unsigned num_spans)
-{
- cairo_gl_span_renderer_t *r = abstract_renderer;
- cairo_gl_emit_span_t emit = r->emit;
-
- if (y > r->ymin) {
- emit (r->ctx,
- r->xmin, r->ymin,
- r->xmax, y,
- 0);
- }
-
- if (num_spans == 0) {
- emit (r->ctx,
- r->xmin, y,
- r->xmax, y + height,
- 0);
- } else {
- if (spans[0].x != r->xmin) {
- emit (r->ctx,
- r->xmin, y,
- spans[0].x, y + height,
- 0);
- }
-
- do {
- emit (r->ctx,
- spans[0].x, y,
- spans[1].x, y + height,
- r->opacity * spans[0].coverage);
- spans++;
- } while (--num_spans > 1);
-
- if (spans[0].x != r->xmax) {
- emit (r->ctx,
- spans[0].x, y,
- r->xmax, y + height,
- 0);
- }
- }
-
- r->ymin = y + height;
- return CAIRO_STATUS_SUCCESS;
-}
-
-/* XXX */
-static cairo_status_t
-_cairo_gl_clipped_spans (void *abstract_renderer,
- int y, int height,
- const cairo_half_open_span_t *spans,
- unsigned num_spans)
-{
- cairo_gl_span_renderer_t *r = abstract_renderer;
- cairo_gl_emit_span_t emit = r->emit;
-
- if (y > r->ymin) {
- emit (r->ctx,
- r->xmin, r->ymin,
- r->xmax, y,
- 0);
- }
-
- if (num_spans == 0) {
- emit (r->ctx,
- r->xmin, y,
- r->xmax, y + height,
- 0);
- } else {
- if (spans[0].x != r->xmin) {
- emit (r->ctx,
- r->xmin, y,
- spans[0].x, y + height,
- 0);
- }
-
- do {
- emit (r->ctx,
- spans[0].x, y,
- spans[1].x, y + height,
- r->opacity * spans[0].coverage);
- spans++;
- } while (--num_spans > 1);
-
- if (spans[0].x != r->xmax) {
- emit (r->ctx,
- spans[0].x, y,
- r->xmax, y + height,
- 0);
- }
- }
-
- r->ymin = y + height;
- return CAIRO_STATUS_SUCCESS;
-}
-
-static cairo_status_t
-_cairo_gl_finish_unbounded_spans (void *abstract_renderer)
-{
- cairo_gl_span_renderer_t *r = abstract_renderer;
- cairo_gl_emit_span_t emit = r->emit;
-
- if (r->ymax > r->ymin) {
- emit (r->ctx,
- r->xmin, r->ymin,
- r->xmax, r->ymax,
- 0);
- }
-
- return _cairo_gl_context_release (r->ctx, CAIRO_STATUS_SUCCESS);
-}
-
-static cairo_status_t
-_cairo_gl_finish_bounded_spans (void *abstract_renderer)
-{
- cairo_gl_span_renderer_t *r = abstract_renderer;
-
- return _cairo_gl_context_release (r->ctx, 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;
-
- TRACE ((stderr, "%s: num_boxes=%d\n", __FUNCTION__, boxes->num_boxes));
- 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;
-
- TRACE ((stderr, "%s\n", __FUNCTION__));
- 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
-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 cairo_int_status_t copy_boxes (void *_dst,
- cairo_surface_t *_src,
- cairo_boxes_t *boxes,
- const cairo_rectangle_int_t *extents,
- int dx, int dy)
-{
- cairo_gl_surface_t *dst = _dst;
- cairo_gl_surface_t *src = (cairo_gl_surface_t *)_src;
- cairo_gl_composite_t setup;
- cairo_gl_context_t *ctx;
- cairo_int_status_t status;
-
- TRACE ((stderr, "%s\n", __FUNCTION__));
- if (! _cairo_gl_surface_is_texture (src))
- return CAIRO_INT_STATUS_UNSUPPORTED;
-
- if (src->base.device != dst->base.device)
- return CAIRO_INT_STATUS_UNSUPPORTED;
-
- status = _cairo_gl_composite_init (&setup, CAIRO_OPERATOR_SOURCE, _dst, FALSE);
- if (unlikely (status))
- goto FAIL;
-
- _cairo_gl_composite_set_source_operand (&setup, &src->operand);
- _cairo_gl_operand_translate (&setup.src, -dx, -dy);
-
- 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;
- cairo_gl_operand_t tmp_operand;
- cairo_gl_operand_t *src_operand;
-
- TRACE ((stderr, "%s mask=(%d,%d), dst=(%d, %d)\n", __FUNCTION__,
- mask_x, mask_y, dst_x, dst_y));
-
- if (abstract_mask) {
- if (op == CAIRO_OPERATOR_CLEAR) {
- _cairo_gl_solid_operand_init (&tmp_operand, CAIRO_COLOR_WHITE);
- src_operand = &tmp_operand;
- op = CAIRO_OPERATOR_DEST_OUT;
- } else if (op == CAIRO_OPERATOR_SOURCE) {
- /* requires a LERP in the shader between dest and source */
- return CAIRO_INT_STATUS_UNSUPPORTED;
- } else
- src_operand = source_to_operand (abstract_src);
- } else
- src_operand = source_to_operand (abstract_src);
-
- status = _cairo_gl_composite_init (&setup, op, _dst, FALSE);
- if (unlikely (status))
- goto FAIL;
-
- _cairo_gl_composite_set_source_operand (&setup,
- src_operand);
- _cairo_gl_operand_translate (&setup.src, -src_x, -src_y);
-
- _cairo_gl_composite_set_mask_operand (&setup,
- source_to_operand (abstract_mask));
- _cairo_gl_operand_translate (&setup.mask, -mask_x, -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);
- if (src_operand == &tmp_operand)
- _cairo_gl_operand_destroy (&tmp_operand);
- return status;
-}
-
-static cairo_int_status_t
-_cairo_gl_span_renderer_init (cairo_abstract_span_renderer_t *_r,
- const cairo_composite_rectangles_t *composite,
- cairo_antialias_t antialias,
- cairo_bool_t needs_clip)
-{
- cairo_gl_span_renderer_t *r = (cairo_gl_span_renderer_t *)_r;
- const cairo_pattern_t *source = &composite->source_pattern.base;
- cairo_operator_t op = composite->op;
- cairo_int_status_t status;
-
- if (op == CAIRO_OPERATOR_SOURCE) {
- if (! _cairo_pattern_is_opaque (&composite->source_pattern.base,
- &composite->source_sample_area))
- return CAIRO_INT_STATUS_UNSUPPORTED;
- op = CAIRO_OPERATOR_OVER;
- }
-
- /* XXX earlier! */
- if (op == CAIRO_OPERATOR_CLEAR) {
- source = &_cairo_pattern_white.base;
- op = CAIRO_OPERATOR_DEST_OUT;
- } else if (composite->surface->is_clear &&
- (op == CAIRO_OPERATOR_SOURCE ||
- op == CAIRO_OPERATOR_OVER ||
- op == CAIRO_OPERATOR_ADD)) {
- op = CAIRO_OPERATOR_SOURCE;
- } else if (op == CAIRO_OPERATOR_SOURCE) {
- /* no lerp equivalent without some major PITA */
- return CAIRO_INT_STATUS_UNSUPPORTED;
- } else if (! _cairo_gl_operator_is_supported (op))
- return CAIRO_INT_STATUS_UNSUPPORTED;
-
- status = _cairo_gl_composite_init (&r->setup,
- op, (cairo_gl_surface_t *)composite->surface,
- FALSE);
- if (unlikely (status))
- goto FAIL;
-
- status = _cairo_gl_composite_set_source (&r->setup, source,
- &composite->source_sample_area,
- &composite->unbounded,
- TRUE);
- if (unlikely (status))
- goto FAIL;
-
- r->opacity = 1.0;
- if (composite->mask_pattern.base.type == CAIRO_PATTERN_TYPE_SOLID) {
- r->opacity = composite->mask_pattern.solid.color.alpha;
- } else {
- status = _cairo_gl_composite_set_mask (&r->setup,
- &composite->mask_pattern.base,
- &composite->mask_sample_area,
- &composite->unbounded,
- TRUE);
- if (unlikely (status))
- goto FAIL;
- }
-
- _cairo_gl_composite_set_spans (&r->setup);
-
- status = _cairo_gl_composite_begin (&r->setup, &r->ctx);
- if (unlikely (status))
- goto FAIL;
-
- r->emit = _cairo_gl_context_choose_emit_span (r->ctx);
- if (composite->is_bounded) {
- if (r->opacity == 1.)
- r->base.render_rows = _cairo_gl_bounded_opaque_spans;
- else
- r->base.render_rows = _cairo_gl_bounded_spans;
- r->base.finish = _cairo_gl_finish_bounded_spans;
- } else {
- if (needs_clip)
- r->base.render_rows = _cairo_gl_clipped_spans;
- else
- r->base.render_rows = _cairo_gl_unbounded_spans;
- r->base.finish = _cairo_gl_finish_unbounded_spans;
- r->xmin = composite->unbounded.x;
- r->xmax = composite->unbounded.x + composite->unbounded.width;
- r->ymin = composite->unbounded.y;
- r->ymax = composite->unbounded.y + composite->unbounded.height;
- }
-
- return CAIRO_STATUS_SUCCESS;
-
-FAIL:
- return status;
-}
-
-static void
-_cairo_gl_span_renderer_fini (cairo_abstract_span_renderer_t *_r,
- cairo_int_status_t status)
-{
- cairo_gl_span_renderer_t *r = (cairo_gl_span_renderer_t *) _r;
-
- if (status == CAIRO_INT_STATUS_UNSUPPORTED)
- return;
-
- if (status == CAIRO_INT_STATUS_SUCCESS)
- r->base.finish (r);
-
- _cairo_gl_composite_fini (&r->setup);
-}
-
-const cairo_compositor_t *
-_cairo_gl_span_compositor_get (void)
-{
- static cairo_atomic_once_t once = CAIRO_ATOMIC_ONCE_INIT;
- static cairo_spans_compositor_t spans;
- static cairo_compositor_t shape;
-
- if (_cairo_atomic_init_once_enter(&once)) {
- /* The fallback to traps here is essentially just for glyphs... */
- _cairo_shape_mask_compositor_init (&shape,
- _cairo_gl_traps_compositor_get());
- shape.glyphs = NULL;
-
- _cairo_spans_compositor_init (&spans, &shape);
- spans.fill_boxes = fill_boxes;
- spans.draw_image_boxes = draw_image_boxes;
- spans.copy_boxes = copy_boxes;
- //spans.check_composite_boxes = check_composite_boxes;
- spans.pattern_to_surface = _cairo_gl_pattern_to_source;
- spans.composite_boxes = composite_boxes;
- //spans.check_span_renderer = check_span_renderer;
- spans.renderer_init = _cairo_gl_span_renderer_init;
- spans.renderer_fini = _cairo_gl_span_renderer_fini;
-
- _cairo_atomic_init_once_leave(&once);
- }
-
- return &spans.base;
-}
View Lorry Controller Status