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Diffstat (limited to 'libs/cairo-1.16.0/src/cairo-spans.c')
-rw-r--r--libs/cairo-1.16.0/src/cairo-spans.c258
1 files changed, 258 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/src/cairo-spans.c b/libs/cairo-1.16.0/src/cairo-spans.c
new file mode 100644
index 0000000..59452c0
--- /dev/null
+++ b/libs/cairo-1.16.0/src/cairo-spans.c
@@ -0,0 +1,258 @@
+/* -*- 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-clip-private.h"
+#include "cairo-error-private.h"
+#include "cairo-fixed-private.h"
+#include "cairo-types-private.h"
+
+static void
+_cairo_nil_destroy (void *abstract)
+{
+ (void) abstract;
+}
+
+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->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;
+ case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: RETURN_NIL;
+ case CAIRO_STATUS_DEVICE_FINISHED: RETURN_NIL;
+ case CAIRO_STATUS_JBIG2_GLOBAL_MISSING:
+ case CAIRO_STATUS_PNG_ERROR:
+ case CAIRO_STATUS_FREETYPE_ERROR:
+ case CAIRO_STATUS_WIN32_GDI_ERROR:
+ case CAIRO_STATUS_TAG_ERROR:
+ 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;
+ case CAIRO_STATUS_INVALID_MESH_CONSTRUCTION: RETURN_NIL;
+ case CAIRO_STATUS_DEVICE_FINISHED: RETURN_NIL;
+ case CAIRO_STATUS_JBIG2_GLOBAL_MISSING: RETURN_NIL;
+ case CAIRO_STATUS_PNG_ERROR: RETURN_NIL;
+ case CAIRO_STATUS_FREETYPE_ERROR: RETURN_NIL;
+ case CAIRO_STATUS_WIN32_GDI_ERROR: RETURN_NIL;
+ case CAIRO_STATUS_TAG_ERROR: RETURN_NIL;
+ default:
+ break;
+ }
+ status = CAIRO_STATUS_NO_MEMORY;
+ RETURN_NIL;
+#undef RETURN_NIL
+}
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