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test/mask-glyphs: Check for memfault

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This commit is contained in:
Chris Wilson 2010-05-05 09:46:03 +01:00
parent ad541a1ec6
commit 840dad765f
1 changed files with 23 additions and 9 deletions
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32
test/mask-glyphs.c
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@ -32,13 +32,14 @@ static const char *png_filename = "romedalen.png";
#define WIDTH 800
#define HEIGHT 600
static int
static cairo_status_t
_image_to_glyphs (cairo_surface_t *image,
int channel,
int level,
cairo_scaled_font_t *scaled_font,
double tx, double ty,
cairo_glyph_t *glyphs,
double tx, double ty)
int *num_glyphs)
{
int width, height, stride;
const unsigned char *data;
@ -62,6 +63,7 @@ _image_to_glyphs (cairo_surface_t *image,
char c = n % 26 + 'a';
int count = 1;
cairo_glyph_t *glyphs_p = &glyphs[n];
cairo_status_t status;
xx = 4 * (x - width/2.) + width/2.;
yy = 4 * (y - height/2.) + height/2.;
@ -76,6 +78,10 @@ _image_to_glyphs (cairo_surface_t *image,
&glyphs_p, &count,
NULL, NULL,
NULL);
status = cairo_scaled_font_status (scaled_font);
if (status)
return status;
assert (glyphs_p == &glyphs[n]);
assert (count == 1);
n++;
@ -83,7 +89,8 @@ _image_to_glyphs (cairo_surface_t *image,
}
}
return n;
*num_glyphs = n;
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
@ -112,10 +119,8 @@ _render_image (cairo_t *cr,
hh = cairo_image_surface_get_height (image);
glyphs = cairo_glyph_allocate (ww * hh);
if (glyphs == NULL) {
cairo_surface_destroy (image);
if (glyphs == NULL)
return CAIRO_STATUS_NO_MEMORY;
}
tx = (width - ww) / 2.;
ty = (height - hh) / 2.;
@ -126,11 +131,16 @@ _render_image (cairo_t *cr,
for (i = 0; i < sizeof (channel) / sizeof (channel[0]); i++) {
cairo_push_group_with_content (cr, CAIRO_CONTENT_ALPHA);
for (n = 0; n < 256; n++) {
cairo_status_t status;
int num_glyphs;
num_glyphs = _image_to_glyphs (image, channel[i].shift, n,
scaled_font,
glyphs, tx, ty);
status = _image_to_glyphs (image, channel[i].shift, n,
scaled_font,
tx, ty, glyphs, &num_glyphs);
if (status) {
cairo_glyph_free (glyphs);
return status;
}
cairo_set_source_rgba (cr,
0, 0, 0,
@ -161,6 +171,10 @@ draw (cairo_t *cr, int width, int height)
cairo_paint (cr);
image = cairo_test_create_surface_from_png (ctx, png_filename);
status = cairo_surface_status (image);
if (status)
return cairo_test_status_from_status (ctx, status);
status = _render_image (cr, width, height, image);
cairo_surface_destroy (image);