/*
Create an ErrorInfo object describing a particular error.
The ErrorInfo object can be printed with error_info_print(), and must be
freed when done with error_info_destroy().
This function never fails (OOM triggers an exit()); the caller can be
confident the returned object is valid.
*/
ErrorInfo* error_info_create(
const ASMLine *line, ASMErrorType err_type, ASMErrorDesc err_desc)
{
ErrorInfo *einfo = cr_malloc(sizeof(ErrorInfo));
einfo->type = err_type;
einfo->desc = err_desc;
einfo->line = line ? create_error_line(line) : NULL;
return einfo;
}
/*
Create an ASMErrorLine object from an ASMLine.
*/
static ASMErrorLine* create_error_line(const ASMLine *line)
{
ASMErrorLine *el = cr_malloc(sizeof(ASMErrorLine));
const char *source = line->original->data;
size_t length = line->original->length;
// Ignore spaces at beginning:
while (length > 0 && (*source == ' ' || *source == '\t'))
source++, length--;
el->data = cr_malloc(sizeof(char) * length);
memcpy(el->data, source, length);
el->length = length;
el->lineno = line->original->lineno;
el->filename = cr_strdup(line->filename);
el->next = NULL;
return el;
}
/**
* cairo_font_options_create:
*
* Allocates a new font options object with all options initialized
* to default values.
*
* Return value: a newly allocated #cairo_font_options_t. Free with
* cairo_font_options_destroy(). This function always returns a
* valid pointer; if memory cannot be allocated, then a special
* error object is returned where all operations on the object do nothing.
* You can check for this with cairo_font_options_status().
*
* Since: 1.0
**/
cairo_font_options_t *
cairo_font_options_create (void)
{
cairo_font_options_t *options;
options = cr_malloc (sizeof (cairo_font_options_t));
if (!options) {
_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
return (cairo_font_options_t *) &_cairo_font_options_nil;
}
_cairo_font_options_init_default (options);
return options;
}
static cairo_status_t
twin_scaled_font_compute_properties (cairo_scaled_font_t *scaled_font,
cairo_t *cr)
{
cairo_status_t status;
twin_scaled_properties_t *props;
props = cr_malloc (sizeof (twin_scaled_properties_t));
if (unlikely (props == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
props->face_props = cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
&twin_properties_key);
props->snap = scaled_font->options.hint_style > CAIRO_HINT_STYLE_NONE;
/* weight */
props->weight = props->face_props->weight * (F (4) / TWIN_WEIGHT_NORMAL);
/* pen & margins */
props->penx = props->peny = props->weight;
props->marginl = props->marginr = F (4);
if (scaled_font->options.hint_style > CAIRO_HINT_STYLE_SLIGHT)
twin_hint_pen_and_margins(cr,
&props->penx, &props->peny,
&props->marginl, &props->marginr);
/* stretch */
props->stretch = 1 + .1 * ((int) props->face_props->stretch - (int) TWIN_STRETCH_NORMAL);
/* Save it */
status = cairo_scaled_font_set_user_data (scaled_font,
&twin_properties_key,
props, cr_free);
if (unlikely (status))
goto FREE_PROPS;
return CAIRO_STATUS_SUCCESS;
FREE_PROPS:
cr_free (props);
return status;
}
/**
* cairo_font_options_copy:
* @original: a #cairo_font_options_t
*
* Allocates a new font options object copying the option values from
* @original.
*
* Return value: a newly allocated #cairo_font_options_t. Free with
* cairo_font_options_destroy(). This function always returns a
* valid pointer; if memory cannot be allocated, then a special
* error object is returned where all operations on the object do nothing.
* You can check for this with cairo_font_options_status().
*
* Since: 1.0
**/
cairo_font_options_t *
cairo_font_options_copy (const cairo_font_options_t *original)
{
cairo_font_options_t *options;
if (cairo_font_options_status ((cairo_font_options_t *) original))
return (cairo_font_options_t *) &_cairo_font_options_nil;
options = cr_malloc (sizeof (cairo_font_options_t));
if (!options) {
_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
return (cairo_font_options_t *) &_cairo_font_options_nil;
}
_cairo_font_options_init_copy (options, original);
return options;
}
static twin_face_properties_t *
twin_font_face_create_properties (cairo_font_face_t *twin_face)
{
twin_face_properties_t *props;
props = cr_malloc (sizeof (twin_face_properties_t));
if (unlikely (props == NULL))
return NULL;
props->stretch = TWIN_STRETCH_NORMAL;
props->slant = CAIRO_FONT_SLANT_NORMAL;
props->weight = TWIN_WEIGHT_NORMAL;
props->monospace = FALSE;
props->smallcaps = FALSE;
if (unlikely (cairo_font_face_set_user_data (twin_face,
&twin_properties_key,
props, cr_free))) {
cr_free (props);
return NULL;
}
return props;
}
