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| Rev | Author | Line No. | Line |
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| 1892 | serge | 1 | /* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ |
| 2 | /* cairo - a vector graphics library with display and print output |
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| 3 | * |
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| 4 | * Copyright (c) 2008 M Joonas Pihlaja |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person |
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| 7 | * obtaining a copy of this software and associated documentation |
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| 8 | * files (the "Software"), to deal in the Software without |
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| 9 | * restriction, including without limitation the rights to use, |
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| 10 | * copy, modify, merge, publish, distribute, sublicense, and/or sell |
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| 11 | * copies of the Software, and to permit persons to whom the |
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| 12 | * Software is furnished to do so, subject to the following |
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| 13 | * conditions: |
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| 14 | * |
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| 15 | * The above copyright notice and this permission notice shall be |
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| 16 | * included in all copies or substantial portions of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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| 19 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
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| 20 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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| 21 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
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| 22 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
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| 23 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 24 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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| 25 | * OTHER DEALINGS IN THE SOFTWARE. |
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| 26 | */ |
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| 27 | #include "cairoint.h" |
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| 28 | |||
| 29 | #include "cairo-composite-rectangles-private.h" |
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| 3959 | Serge | 30 | #include "cairo-clip-private.h" |
| 31 | #include "cairo-error-private.h" |
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| 1892 | serge | 32 | #include "cairo-fixed-private.h" |
| 3959 | Serge | 33 | #include "cairo-types-private.h" |
| 1892 | serge | 34 | |
| 35 | static void |
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| 36 | _cairo_nil_destroy (void *abstract) |
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| 37 | { |
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| 38 | (void) abstract; |
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| 39 | } |
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| 40 | |||
| 41 | static cairo_status_t |
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| 42 | _cairo_nil_scan_converter_generate (void *abstract_converter, |
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| 43 | cairo_span_renderer_t *renderer) |
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| 44 | { |
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| 45 | (void) abstract_converter; |
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| 46 | (void) renderer; |
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| 47 | return _cairo_scan_converter_status (abstract_converter); |
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| 48 | } |
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| 49 | |||
| 50 | cairo_status_t |
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| 51 | _cairo_scan_converter_status (void *abstract_converter) |
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| 52 | { |
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| 53 | cairo_scan_converter_t *converter = abstract_converter; |
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| 54 | return converter->status; |
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| 55 | } |
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| 56 | |||
| 57 | cairo_status_t |
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| 58 | _cairo_scan_converter_set_error (void *abstract_converter, |
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| 59 | cairo_status_t error) |
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| 60 | { |
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| 61 | cairo_scan_converter_t *converter = abstract_converter; |
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| 62 | if (error == CAIRO_STATUS_SUCCESS) |
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| 63 | ASSERT_NOT_REACHED; |
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| 64 | if (converter->status == CAIRO_STATUS_SUCCESS) { |
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| 65 | converter->generate = _cairo_nil_scan_converter_generate; |
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| 66 | converter->status = error; |
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| 67 | } |
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| 68 | return converter->status; |
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| 69 | } |
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| 70 | |||
| 71 | static void |
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| 72 | _cairo_nil_scan_converter_init (cairo_scan_converter_t *converter, |
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| 73 | cairo_status_t status) |
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| 74 | { |
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| 75 | converter->destroy = _cairo_nil_destroy; |
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| 76 | converter->status = CAIRO_STATUS_SUCCESS; |
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| 77 | status = _cairo_scan_converter_set_error (converter, status); |
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| 78 | } |
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| 79 | |||
| 80 | cairo_scan_converter_t * |
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| 81 | _cairo_scan_converter_create_in_error (cairo_status_t status) |
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| 82 | { |
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| 83 | #define RETURN_NIL {\ |
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| 84 | static cairo_scan_converter_t nil;\ |
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| 85 | _cairo_nil_scan_converter_init (&nil, status);\ |
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| 86 | return &nil;\ |
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| 87 | } |
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| 88 | switch (status) { |
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| 89 | case CAIRO_STATUS_SUCCESS: |
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| 90 | case CAIRO_STATUS_LAST_STATUS: |
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| 91 | ASSERT_NOT_REACHED; |
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| 92 | break; |
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| 93 | case CAIRO_STATUS_INVALID_RESTORE: RETURN_NIL; |
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| 94 | case CAIRO_STATUS_INVALID_POP_GROUP: RETURN_NIL; |
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| 95 | case CAIRO_STATUS_NO_CURRENT_POINT: RETURN_NIL; |
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| 96 | case CAIRO_STATUS_INVALID_MATRIX: RETURN_NIL; |
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| 97 | case CAIRO_STATUS_INVALID_STATUS: RETURN_NIL; |
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| 98 | case CAIRO_STATUS_NULL_POINTER: RETURN_NIL; |
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| 99 | case CAIRO_STATUS_INVALID_STRING: RETURN_NIL; |
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| 100 | case CAIRO_STATUS_INVALID_PATH_DATA: RETURN_NIL; |
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| 101 | case CAIRO_STATUS_READ_ERROR: RETURN_NIL; |
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| 102 | case CAIRO_STATUS_WRITE_ERROR: RETURN_NIL; |
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| 103 | case CAIRO_STATUS_SURFACE_FINISHED: RETURN_NIL; |
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| 104 | case CAIRO_STATUS_SURFACE_TYPE_MISMATCH: RETURN_NIL; |
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| 105 | case CAIRO_STATUS_PATTERN_TYPE_MISMATCH: RETURN_NIL; |
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| 106 | case CAIRO_STATUS_INVALID_CONTENT: RETURN_NIL; |
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| 107 | case CAIRO_STATUS_INVALID_FORMAT: RETURN_NIL; |
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| 108 | case CAIRO_STATUS_INVALID_VISUAL: RETURN_NIL; |
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| 109 | case CAIRO_STATUS_FILE_NOT_FOUND: RETURN_NIL; |
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| 110 | case CAIRO_STATUS_INVALID_DASH: RETURN_NIL; |
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| 111 | case CAIRO_STATUS_INVALID_DSC_COMMENT: RETURN_NIL; |
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| 112 | case CAIRO_STATUS_INVALID_INDEX: RETURN_NIL; |
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| 113 | case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: RETURN_NIL; |
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| 114 | case CAIRO_STATUS_TEMP_FILE_ERROR: RETURN_NIL; |
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| 115 | case CAIRO_STATUS_INVALID_STRIDE: RETURN_NIL; |
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| 116 | case CAIRO_STATUS_FONT_TYPE_MISMATCH: RETURN_NIL; |
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| 117 | case CAIRO_STATUS_USER_FONT_IMMUTABLE: RETURN_NIL; |
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| 118 | case CAIRO_STATUS_USER_FONT_ERROR: RETURN_NIL; |
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| 119 | case CAIRO_STATUS_NEGATIVE_COUNT: RETURN_NIL; |
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| 120 | case CAIRO_STATUS_INVALID_CLUSTERS: RETURN_NIL; |
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| 121 | case CAIRO_STATUS_INVALID_SLANT: RETURN_NIL; |
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| 122 | case CAIRO_STATUS_INVALID_WEIGHT: RETURN_NIL; |
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| 123 | case CAIRO_STATUS_NO_MEMORY: RETURN_NIL; |
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| 124 | case CAIRO_STATUS_INVALID_SIZE: RETURN_NIL; |
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| 125 | case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: RETURN_NIL; |
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| 126 | case CAIRO_STATUS_DEVICE_TYPE_MISMATCH: RETURN_NIL; |
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| 127 | case CAIRO_STATUS_DEVICE_ERROR: RETURN_NIL; |
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| 3959 | Serge | 128 | case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: RETURN_NIL; |
| 129 | case CAIRO_STATUS_DEVICE_FINISHED: RETURN_NIL; |
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| 1892 | serge | 130 | default: |
| 131 | break; |
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| 132 | } |
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| 133 | status = CAIRO_STATUS_NO_MEMORY; |
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| 134 | RETURN_NIL; |
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| 135 | #undef RETURN_NIL |
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| 136 | } |
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| 137 | |||
| 138 | static cairo_status_t |
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| 139 | _cairo_nil_span_renderer_render_rows ( |
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| 140 | void *abstract_renderer, |
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| 141 | int y, |
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| 142 | int height, |
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| 143 | const cairo_half_open_span_t *coverages, |
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| 144 | unsigned num_coverages) |
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| 145 | { |
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| 146 | (void) y; |
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| 147 | (void) height; |
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| 148 | (void) coverages; |
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| 149 | (void) num_coverages; |
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| 150 | return _cairo_span_renderer_status (abstract_renderer); |
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| 151 | } |
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| 152 | |||
| 153 | static cairo_status_t |
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| 154 | _cairo_nil_span_renderer_finish (void *abstract_renderer) |
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| 155 | { |
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| 156 | return _cairo_span_renderer_status (abstract_renderer); |
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| 157 | } |
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| 158 | |||
| 159 | cairo_status_t |
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| 160 | _cairo_span_renderer_status (void *abstract_renderer) |
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| 161 | { |
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| 162 | cairo_span_renderer_t *renderer = abstract_renderer; |
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| 163 | return renderer->status; |
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| 164 | } |
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| 165 | |||
| 166 | cairo_status_t |
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| 167 | _cairo_span_renderer_set_error ( |
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| 168 | void *abstract_renderer, |
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| 169 | cairo_status_t error) |
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| 170 | { |
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| 171 | cairo_span_renderer_t *renderer = abstract_renderer; |
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| 172 | if (error == CAIRO_STATUS_SUCCESS) { |
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| 173 | ASSERT_NOT_REACHED; |
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| 174 | } |
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| 175 | if (renderer->status == CAIRO_STATUS_SUCCESS) { |
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| 176 | renderer->render_rows = _cairo_nil_span_renderer_render_rows; |
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| 177 | renderer->finish = _cairo_nil_span_renderer_finish; |
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| 178 | renderer->status = error; |
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| 179 | } |
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| 180 | return renderer->status; |
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| 181 | } |
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| 182 | |||
| 183 | static void |
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| 184 | _cairo_nil_span_renderer_init (cairo_span_renderer_t *renderer, |
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| 185 | cairo_status_t status) |
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| 186 | { |
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| 187 | renderer->destroy = _cairo_nil_destroy; |
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| 188 | renderer->status = CAIRO_STATUS_SUCCESS; |
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| 189 | status = _cairo_span_renderer_set_error (renderer, status); |
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| 190 | } |
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| 191 | |||
| 192 | cairo_span_renderer_t * |
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| 193 | _cairo_span_renderer_create_in_error (cairo_status_t status) |
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| 194 | { |
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| 195 | #define RETURN_NIL {\ |
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| 196 | static cairo_span_renderer_t nil;\ |
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| 197 | _cairo_nil_span_renderer_init (&nil, status);\ |
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| 198 | return &nil;\ |
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| 199 | } |
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| 200 | switch (status) { |
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| 201 | case CAIRO_STATUS_SUCCESS: |
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| 202 | case CAIRO_STATUS_LAST_STATUS: |
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| 203 | ASSERT_NOT_REACHED; |
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| 204 | break; |
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| 205 | case CAIRO_STATUS_INVALID_RESTORE: RETURN_NIL; |
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| 206 | case CAIRO_STATUS_INVALID_POP_GROUP: RETURN_NIL; |
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| 207 | case CAIRO_STATUS_NO_CURRENT_POINT: RETURN_NIL; |
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| 208 | case CAIRO_STATUS_INVALID_MATRIX: RETURN_NIL; |
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| 209 | case CAIRO_STATUS_INVALID_STATUS: RETURN_NIL; |
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| 210 | case CAIRO_STATUS_NULL_POINTER: RETURN_NIL; |
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| 211 | case CAIRO_STATUS_INVALID_STRING: RETURN_NIL; |
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| 212 | case CAIRO_STATUS_INVALID_PATH_DATA: RETURN_NIL; |
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| 213 | case CAIRO_STATUS_READ_ERROR: RETURN_NIL; |
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| 214 | case CAIRO_STATUS_WRITE_ERROR: RETURN_NIL; |
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| 215 | case CAIRO_STATUS_SURFACE_FINISHED: RETURN_NIL; |
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| 216 | case CAIRO_STATUS_SURFACE_TYPE_MISMATCH: RETURN_NIL; |
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| 217 | case CAIRO_STATUS_PATTERN_TYPE_MISMATCH: RETURN_NIL; |
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| 218 | case CAIRO_STATUS_INVALID_CONTENT: RETURN_NIL; |
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| 219 | case CAIRO_STATUS_INVALID_FORMAT: RETURN_NIL; |
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| 220 | case CAIRO_STATUS_INVALID_VISUAL: RETURN_NIL; |
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| 221 | case CAIRO_STATUS_FILE_NOT_FOUND: RETURN_NIL; |
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| 222 | case CAIRO_STATUS_INVALID_DASH: RETURN_NIL; |
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| 223 | case CAIRO_STATUS_INVALID_DSC_COMMENT: RETURN_NIL; |
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| 224 | case CAIRO_STATUS_INVALID_INDEX: RETURN_NIL; |
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| 225 | case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE: RETURN_NIL; |
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| 226 | case CAIRO_STATUS_TEMP_FILE_ERROR: RETURN_NIL; |
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| 227 | case CAIRO_STATUS_INVALID_STRIDE: RETURN_NIL; |
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| 228 | case CAIRO_STATUS_FONT_TYPE_MISMATCH: RETURN_NIL; |
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| 229 | case CAIRO_STATUS_USER_FONT_IMMUTABLE: RETURN_NIL; |
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| 230 | case CAIRO_STATUS_USER_FONT_ERROR: RETURN_NIL; |
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| 231 | case CAIRO_STATUS_NEGATIVE_COUNT: RETURN_NIL; |
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| 232 | case CAIRO_STATUS_INVALID_CLUSTERS: RETURN_NIL; |
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| 233 | case CAIRO_STATUS_INVALID_SLANT: RETURN_NIL; |
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| 234 | case CAIRO_STATUS_INVALID_WEIGHT: RETURN_NIL; |
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| 235 | case CAIRO_STATUS_NO_MEMORY: RETURN_NIL; |
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| 236 | case CAIRO_STATUS_INVALID_SIZE: RETURN_NIL; |
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| 237 | case CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED: RETURN_NIL; |
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| 238 | case CAIRO_STATUS_DEVICE_TYPE_MISMATCH: RETURN_NIL; |
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| 239 | case CAIRO_STATUS_DEVICE_ERROR: RETURN_NIL; |
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| 3959 | Serge | 240 | case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: RETURN_NIL; |
| 241 | case CAIRO_STATUS_DEVICE_FINISHED: RETURN_NIL; |
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| 1892 | serge | 242 | default: |
| 243 | break; |
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| 244 | } |
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| 245 | status = CAIRO_STATUS_NO_MEMORY; |
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| 246 | RETURN_NIL; |
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| 247 | #undef RETURN_NIL |
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| 248 | } |