1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
|
/* -*- 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-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->mask.x,
rects->mask.y,
rects->mask.x + rects->width,
rects->mask.y + rects->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_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->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;
default:
break;
}
status = CAIRO_STATUS_NO_MEMORY;
RETURN_NIL;
#undef RETURN_NIL
}
static cairo_status_t
_cairo_nil_span_renderer_render_row (
void *abstract_renderer,
int y,
const cairo_half_open_span_t *coverages,
unsigned num_coverages)
{
(void) y;
(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_row = _cairo_nil_span_renderer_render_row;
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;
default:
break;
}
status = CAIRO_STATUS_NO_MEMORY;
RETURN_NIL;
#undef RETURN_NIL
}
|
