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-rw-r--r--test/cairo-test.c162
1 files changed, 100 insertions, 62 deletions
diff --git a/test/cairo-test.c b/test/cairo-test.c
index 2364570a2..06f7672fd 100644
--- a/test/cairo-test.c
+++ b/test/cairo-test.c
@@ -32,10 +32,12 @@
#include "cairo_test.h"
+#include "buffer_diff.h"
#include "read_png.h"
#include "write_png.h"
#include "xmalloc.h"
+#define CAIRO_TEST_LOG_SUFFIX ".log"
#define CAIRO_TEST_PNG_SUFFIX "-out.png"
#define CAIRO_TEST_REF_SUFFIX "-ref.png"
#define CAIRO_TEST_DIFF_SUFFIX "-diff.png"
@@ -43,9 +45,10 @@
static void
xasprintf (char **strp, const char *fmt, ...)
{
+#ifdef HAVE_VASPRINTF
va_list va;
int ret;
-
+
va_start (va, fmt);
ret = vasprintf (strp, fmt, va);
va_end (va);
@@ -54,53 +57,42 @@ xasprintf (char **strp, const char *fmt, ...)
fprintf (stderr, "Out of memory\n");
exit (1);
}
+#else /* !HAVE_VASNPRINTF */
+#define BUF_SIZE 1024
+ va_list va;
+ char buffer[BUF_SIZE];
+ int ret;
+
+ va_start (va, fmt);
+ ret = vsnprintf (buffer, sizeof(buffer), fmt, va);
+ va_end (va);
+
+ if (ret < 0) {
+ fprintf (stderr, "Failure in vsnprintf\n");
+ exit (1);
+ }
+
+ if (strlen (buffer) == sizeof(buffer) - 1) {
+ fprintf (stderr, "Overflowed fixed buffer\n");
+ exit (1);
+ }
+
+ *strp = strdup (buffer);
+ if (!*strp) {
+ fprintf (stderr, "Out of memory\n");
+ exit (1);
+ }
+#endif /* !HAVE_VASNPRINTF */
}
-/* Image comparison code courttesy of Richard Worth.
- * Returns number of pixels changed.
- * Also fills out a "diff" image intended to visually show where the
- * images differ.
- */
-static int
-image_diff (char *buf_a, char *buf_b, char *buf_diff,
- int width, int height, int stride)
+static void
+xunlink (const char *pathname)
{
- int x, y;
- int total_pixels_changed = 0;
- unsigned char *row_a, *row_b, *row;
-
- for (y = 0; y < height; y++)
- {
- row_a = buf_a + y * stride;
- row_b = buf_b + y * stride;
- row = buf_diff + y * stride;
- for (x = 0; x < width; x++)
- {
- int channel;
- unsigned char value_a, value_b;
- int pixel_changed = 0;
- for (channel = 0; channel < 4; channel++)
- {
- double diff;
- value_a = row_a[x * 4 + channel];
- value_b = row_b[x * 4 + channel];
- if (value_a != value_b)
- pixel_changed = 1;
- diff = value_a - value_b;
- row[x * 4 + channel] = 128 + diff / 3.0;
- }
- if (pixel_changed) {
- total_pixels_changed++;
- } else {
- row[x*4+0] = 0;
- row[x*4+1] = 0;
- row[x*4+2] = 0;
- }
- row[x * 4 + 3] = 0xff; /* Set ALPHA to 100% (opaque) */
- }
+ if (unlink (pathname) < 0 && errno != ENOENT) {
+ fprintf (stderr, " Error: Cannot remove %s: %s\n",
+ pathname, strerror (errno));
+ exit (1);
}
-
- return total_pixels_changed;
}
cairo_test_status_t
@@ -109,12 +101,14 @@ cairo_test (cairo_test_t *test, cairo_test_draw_function_t draw)
cairo_t *cr;
int stride;
unsigned char *png_buf, *ref_buf, *diff_buf;
- char *png_name, *ref_name, *diff_name;
+ char *log_name, *png_name, *ref_name, *diff_name;
char *srcdir;
int pixels_changed;
int ref_width, ref_height, ref_stride;
read_png_status_t png_status;
cairo_test_status_t ret;
+ FILE *png_file;
+ FILE *log_file;
/* The cairo part of the test is the easiest part */
cr = cairo_create ();
@@ -142,57 +136,68 @@ cairo_test (cairo_test_t *test, cairo_test_draw_function_t draw)
srcdir = getenv ("srcdir");
if (!srcdir)
srcdir = ".";
+ xasprintf (&log_name, "%s%s", test->name, CAIRO_TEST_LOG_SUFFIX);
xasprintf (&png_name, "%s%s", test->name, CAIRO_TEST_PNG_SUFFIX);
xasprintf (&ref_name, "%s/%s%s", srcdir, test->name, CAIRO_TEST_REF_SUFFIX);
xasprintf (&diff_name, "%s%s", test->name, CAIRO_TEST_DIFF_SUFFIX);
- write_png_argb32 (png_buf, png_name, test->width, test->height, stride);
+ png_file = fopen (png_name, "w");
+ write_png_argb32 (png_buf, png_file, test->width, test->height, stride);
+ fclose (png_file);
+
+ xunlink (log_name);
ref_buf = NULL;
png_status = (read_png_argb32 (ref_name, &ref_buf, &ref_width, &ref_height, &ref_stride));
if (png_status) {
+ log_file = fopen (log_name, "a");
switch (png_status)
{
case READ_PNG_FILE_NOT_FOUND:
- fprintf (stderr, " Error: No reference image found: %s\n", ref_name);
+ fprintf (log_file, "Error: No reference image found: %s\n", ref_name);
break;
case READ_PNG_FILE_NOT_PNG:
- fprintf (stderr, " Error: %s is not a png image\n", ref_name);
+ fprintf (log_file, "Error: %s is not a png image\n", ref_name);
break;
default:
- fprintf (stderr, " Error: Failed to read %s\n", ref_name);
+ fprintf (log_file, "Error: Failed to read %s\n", ref_name);
}
+ fclose (log_file);
ret = CAIRO_TEST_FAILURE;
goto BAIL;
+ } else {
}
if (test->width != ref_width || test->height != ref_height) {
- fprintf (stderr,
- " Error: Image size mismatch: (%dx%d) vs. (%dx%d)\n"
- " for %s vs %s\n",
+ log_file = fopen (log_name, "a");
+ fprintf (log_file,
+ "Error: Image size mismatch: (%dx%d) vs. (%dx%d)\n"
+ " for %s vs %s\n",
test->width, test->height,
ref_width, ref_height,
png_name, ref_name);
+ fclose (log_file);
+
ret = CAIRO_TEST_FAILURE;
goto BAIL;
}
- pixels_changed = image_diff (png_buf, ref_buf, diff_buf,
- test->width, test->height, stride);
+ pixels_changed = buffer_diff (png_buf, ref_buf, diff_buf,
+ test->width, test->height, stride);
if (pixels_changed) {
- fprintf (stderr, " Error: %d pixels differ from reference image %s\n",
+ log_file = fopen (log_name, "a");
+ fprintf (log_file, "Error: %d pixels differ from reference image %s\n",
pixels_changed, ref_name);
- write_png_argb32 (diff_buf, diff_name, test->width, test->height, stride);
+ png_file = fopen (diff_name, "w");
+ write_png_argb32 (diff_buf, png_file, test->width, test->height, stride);
+ fclose (png_file);
+ fclose (log_file);
+
ret = CAIRO_TEST_FAILURE;
goto BAIL;
} else {
- if (unlink (diff_name) < 0 && errno != ENOENT) {
- fprintf (stderr, " Error: Cannot remove %s: %s\n",
- diff_name, strerror (errno));
- ret = CAIRO_TEST_FAILURE;
- goto BAIL;
- }
+ xunlink (diff_name);
}
ret = CAIRO_TEST_SUCCESS;
@@ -201,9 +206,42 @@ BAIL:
free (png_buf);
free (ref_buf);
free (diff_buf);
+ free (log_name);
free (png_name);
free (ref_name);
free (diff_name);
return ret;
}
+
+cairo_pattern_t *
+cairo_test_create_png_pattern (cairo_t *cr, const char *filename)
+{
+ cairo_surface_t *image;
+ cairo_pattern_t *pattern;
+ unsigned char *buffer;
+ int w, h, stride;
+ read_png_status_t status;
+ char *srcdir = getenv ("srcdir");
+
+ status = read_png_argb32 (filename, &buffer, &w,&h, &stride);
+ if (status != READ_PNG_SUCCESS) {
+ if (srcdir) {
+ char *srcdir_filename;
+ xasprintf (&srcdir_filename, "%s/%s", srcdir, filename);
+ status = read_png_argb32 (srcdir_filename, &buffer, &w,&h, &stride);
+ free (srcdir_filename);
+ }
+ }
+ if (status != READ_PNG_SUCCESS)
+ return NULL;
+
+ image = cairo_surface_create_for_image (buffer, CAIRO_FORMAT_ARGB32,
+ w, h, stride);
+
+ cairo_surface_set_repeat (image, 1);
+
+ pattern = cairo_pattern_create_for_surface (image);
+
+ return pattern;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-25 18:55:48 +0000