| 0,0 → 1,323 |
|---|
| /* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ |
| /* cairo - a vector graphics library with display and print output |
| * |
| * Copyright (c) 2008 M Joonas Pihlaja |
| * |
| * Permission is hereby granted, free of charge, to any person |
| * obtaining a copy of this software and associated documentation |
| * files (the "Software"), to deal in the Software without |
| * restriction, including without limitation the rights to use, |
| * copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following |
| * conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
| * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
| * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| #include "cairoint.h" |
| |
| #include "cairo-composite-rectangles-private.h" |
| #include "cairo-fixed-private.h" |
| |
| static cairo_scan_converter_t * |
| _create_scan_converter (cairo_fill_rule_t fill_rule, |
| cairo_antialias_t antialias, |
| const cairo_composite_rectangles_t *rects) |
| { |
| if (antialias == CAIRO_ANTIALIAS_NONE) { |
| ASSERT_NOT_REACHED; |
| return NULL; |
| } |
| |
| return _cairo_tor_scan_converter_create (rects->bounded.x, |
| rects->bounded.y, |
| rects->bounded.x + rects->bounded.width, |
| rects->bounded.y + rects->bounded.height, |
| fill_rule); |
| } |
| |
| /* XXX Add me to the compositor interface. Ok, first create the compositor |
| * interface, and then add this with associated fallback! |
| */ |
| cairo_status_t |
| _cairo_surface_composite_polygon (cairo_surface_t *surface, |
| cairo_operator_t op, |
| const cairo_pattern_t *pattern, |
| cairo_fill_rule_t fill_rule, |
| cairo_antialias_t antialias, |
| const cairo_composite_rectangles_t *rects, |
| cairo_polygon_t *polygon, |
| cairo_region_t *clip_region) |
| { |
| cairo_span_renderer_t *renderer; |
| cairo_scan_converter_t *converter; |
| cairo_status_t status; |
| |
| converter = _create_scan_converter (fill_rule, antialias, rects); |
| status = converter->add_polygon (converter, polygon); |
| if (unlikely (status)) |
| goto CLEANUP_CONVERTER; |
| |
| renderer = _cairo_surface_create_span_renderer (op, pattern, surface, |
| antialias, rects, |
| clip_region); |
| status = converter->generate (converter, renderer); |
| if (unlikely (status)) |
| goto CLEANUP_RENDERER; |
| |
| status = renderer->finish (renderer); |
| |
| CLEANUP_RENDERER: |
| renderer->destroy (renderer); |
| CLEANUP_CONVERTER: |
| converter->destroy (converter); |
| return status; |
| } |
| |
| static void |
| _cairo_nil_destroy (void *abstract) |
| { |
| (void) abstract; |
| } |
| |
| static cairo_status_t |
| _cairo_nil_scan_converter_add_polygon (void *abstract_converter, |
| const cairo_polygon_t *polygon) |
| { |
| (void) abstract_converter; |
| (void) polygon; |
| return _cairo_scan_converter_status (abstract_converter); |
| } |
| |
| static cairo_status_t |
| _cairo_nil_scan_converter_add_edge (void *abstract_converter, |
| const cairo_point_t *p1, |
| const cairo_point_t *p2, |
| int top, int bottom, |
| int dir) |
| { |
| (void) abstract_converter; |
| (void) p1; |
| (void) p2; |
| (void) top; |
| (void) bottom; |
| (void) dir; |
| return _cairo_scan_converter_status (abstract_converter); |
| } |
| |
| static cairo_status_t |
| _cairo_nil_scan_converter_generate (void *abstract_converter, |
| cairo_span_renderer_t *renderer) |
| { |
| (void) abstract_converter; |
| (void) renderer; |
| return _cairo_scan_converter_status (abstract_converter); |
| } |
| |
| cairo_status_t |
| _cairo_scan_converter_status (void *abstract_converter) |
| { |
| cairo_scan_converter_t *converter = abstract_converter; |
| return converter->status; |
| } |
| |
| cairo_status_t |
| _cairo_scan_converter_set_error (void *abstract_converter, |
| cairo_status_t error) |
| { |
| cairo_scan_converter_t *converter = abstract_converter; |
| if (error == CAIRO_STATUS_SUCCESS) |
| ASSERT_NOT_REACHED; |
| if (converter->status == CAIRO_STATUS_SUCCESS) { |
| converter->add_polygon = _cairo_nil_scan_converter_add_polygon; |
| converter->add_edge = _cairo_nil_scan_converter_add_edge; |
| converter->generate = _cairo_nil_scan_converter_generate; |
| converter->status = error; |
| } |
| return converter->status; |
| } |
| |
| static void |
| _cairo_nil_scan_converter_init (cairo_scan_converter_t *converter, |
| cairo_status_t status) |
| { |
| converter->destroy = _cairo_nil_destroy; |
| converter->status = CAIRO_STATUS_SUCCESS; |
| status = _cairo_scan_converter_set_error (converter, status); |
| } |
| |
| cairo_scan_converter_t * |
| _cairo_scan_converter_create_in_error (cairo_status_t status) |
| { |
| #define RETURN_NIL {\ |
| static cairo_scan_converter_t nil;\ |
| _cairo_nil_scan_converter_init (&nil, status);\ |
| return &nil;\ |
| } |
| switch (status) { |
| case CAIRO_STATUS_SUCCESS: |
| case CAIRO_STATUS_LAST_STATUS: |
| ASSERT_NOT_REACHED; |
| break; |
| case CAIRO_STATUS_INVALID_RESTORE: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_POP_GROUP: RETURN_NIL; |
| case CAIRO_STATUS_NO_CURRENT_POINT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_MATRIX: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_STATUS: RETURN_NIL; |
| case CAIRO_STATUS_NULL_POINTER: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_STRING: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_PATH_DATA: RETURN_NIL; |
| case CAIRO_STATUS_READ_ERROR: RETURN_NIL; |
| case CAIRO_STATUS_WRITE_ERROR: RETURN_NIL; |
| case CAIRO_STATUS_SURFACE_FINISHED: RETURN_NIL; |
| case CAIRO_STATUS_SURFACE_TYPE_MISMATCH: RETURN_NIL; |
| case CAIRO_STATUS_PATTERN_TYPE_MISMATCH: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_CONTENT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_FORMAT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_VISUAL: RETURN_NIL; |
| case CAIRO_STATUS_FILE_NOT_FOUND: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_DASH: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_DSC_COMMENT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_INDEX: RETURN_NIL; |
| case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: RETURN_NIL; |
| case CAIRO_STATUS_TEMP_FILE_ERROR: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_STRIDE: RETURN_NIL; |
| case CAIRO_STATUS_FONT_TYPE_MISMATCH: RETURN_NIL; |
| case CAIRO_STATUS_USER_FONT_IMMUTABLE: RETURN_NIL; |
| case CAIRO_STATUS_USER_FONT_ERROR: RETURN_NIL; |
| case CAIRO_STATUS_NEGATIVE_COUNT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_CLUSTERS: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_SLANT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_WEIGHT: RETURN_NIL; |
| case CAIRO_STATUS_NO_MEMORY: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_SIZE: RETURN_NIL; |
| case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: RETURN_NIL; |
| case CAIRO_STATUS_DEVICE_TYPE_MISMATCH: RETURN_NIL; |
| case CAIRO_STATUS_DEVICE_ERROR: RETURN_NIL; |
| default: |
| break; |
| } |
| status = CAIRO_STATUS_NO_MEMORY; |
| RETURN_NIL; |
| #undef RETURN_NIL |
| } |
| |
| static cairo_status_t |
| _cairo_nil_span_renderer_render_rows ( |
| void *abstract_renderer, |
| int y, |
| int height, |
| const cairo_half_open_span_t *coverages, |
| unsigned num_coverages) |
| { |
| (void) y; |
| (void) height; |
| (void) coverages; |
| (void) num_coverages; |
| return _cairo_span_renderer_status (abstract_renderer); |
| } |
| |
| static cairo_status_t |
| _cairo_nil_span_renderer_finish (void *abstract_renderer) |
| { |
| return _cairo_span_renderer_status (abstract_renderer); |
| } |
| |
| cairo_status_t |
| _cairo_span_renderer_status (void *abstract_renderer) |
| { |
| cairo_span_renderer_t *renderer = abstract_renderer; |
| return renderer->status; |
| } |
| |
| cairo_status_t |
| _cairo_span_renderer_set_error ( |
| void *abstract_renderer, |
| cairo_status_t error) |
| { |
| cairo_span_renderer_t *renderer = abstract_renderer; |
| if (error == CAIRO_STATUS_SUCCESS) { |
| ASSERT_NOT_REACHED; |
| } |
| if (renderer->status == CAIRO_STATUS_SUCCESS) { |
| renderer->render_rows = _cairo_nil_span_renderer_render_rows; |
| renderer->finish = _cairo_nil_span_renderer_finish; |
| renderer->status = error; |
| } |
| return renderer->status; |
| } |
| |
| static void |
| _cairo_nil_span_renderer_init (cairo_span_renderer_t *renderer, |
| cairo_status_t status) |
| { |
| renderer->destroy = _cairo_nil_destroy; |
| renderer->status = CAIRO_STATUS_SUCCESS; |
| status = _cairo_span_renderer_set_error (renderer, status); |
| } |
| |
| cairo_span_renderer_t * |
| _cairo_span_renderer_create_in_error (cairo_status_t status) |
| { |
| #define RETURN_NIL {\ |
| static cairo_span_renderer_t nil;\ |
| _cairo_nil_span_renderer_init (&nil, status);\ |
| return &nil;\ |
| } |
| switch (status) { |
| case CAIRO_STATUS_SUCCESS: |
| case CAIRO_STATUS_LAST_STATUS: |
| ASSERT_NOT_REACHED; |
| break; |
| case CAIRO_STATUS_INVALID_RESTORE: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_POP_GROUP: RETURN_NIL; |
| case CAIRO_STATUS_NO_CURRENT_POINT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_MATRIX: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_STATUS: RETURN_NIL; |
| case CAIRO_STATUS_NULL_POINTER: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_STRING: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_PATH_DATA: RETURN_NIL; |
| case CAIRO_STATUS_READ_ERROR: RETURN_NIL; |
| case CAIRO_STATUS_WRITE_ERROR: RETURN_NIL; |
| case CAIRO_STATUS_SURFACE_FINISHED: RETURN_NIL; |
| case CAIRO_STATUS_SURFACE_TYPE_MISMATCH: RETURN_NIL; |
| case CAIRO_STATUS_PATTERN_TYPE_MISMATCH: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_CONTENT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_FORMAT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_VISUAL: RETURN_NIL; |
| case CAIRO_STATUS_FILE_NOT_FOUND: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_DASH: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_DSC_COMMENT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_INDEX: RETURN_NIL; |
| case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: RETURN_NIL; |
| case CAIRO_STATUS_TEMP_FILE_ERROR: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_STRIDE: RETURN_NIL; |
| case CAIRO_STATUS_FONT_TYPE_MISMATCH: RETURN_NIL; |
| case CAIRO_STATUS_USER_FONT_IMMUTABLE: RETURN_NIL; |
| case CAIRO_STATUS_USER_FONT_ERROR: RETURN_NIL; |
| case CAIRO_STATUS_NEGATIVE_COUNT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_CLUSTERS: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_SLANT: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_WEIGHT: RETURN_NIL; |
| case CAIRO_STATUS_NO_MEMORY: RETURN_NIL; |
| case CAIRO_STATUS_INVALID_SIZE: RETURN_NIL; |
| case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: RETURN_NIL; |
| case CAIRO_STATUS_DEVICE_TYPE_MISMATCH: RETURN_NIL; |
| case CAIRO_STATUS_DEVICE_ERROR: RETURN_NIL; |
| default: |
| break; |
| } |
| status = CAIRO_STATUS_NO_MEMORY; |
| RETURN_NIL; |
| #undef RETURN_NIL |
| } |