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-rw-r--r--pixman/test/pixel-test.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/pixman/test/pixel-test.c b/pixman/test/pixel-test.c
new file mode 100644
index 000000000..8c525d202
--- /dev/null
+++ b/pixman/test/pixel-test.c
@@ -0,0 +1,267 @@
+/*
+ * Copyright © 2013 Soeren Sandmann
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * 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 (including the next
+ * paragraph) 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 <stdio.h>
+#include <stdlib.h> /* abort() */
+#include <math.h>
+#include <time.h>
+#include "utils.h"
+
+typedef struct pixel_combination_t pixel_combination_t;
+struct pixel_combination_t
+{
+ pixman_op_t op;
+ pixman_format_code_t src_format;
+ uint32_t src_pixel;
+ pixman_format_code_t dest_format;
+ uint32_t dest_pixel;
+};
+
+static const pixel_combination_t regressions[] =
+{
+ { PIXMAN_OP_OVER,
+ PIXMAN_a8r8g8b8, 0x0f00c300,
+ PIXMAN_x14r6g6b6, 0x003c0,
+ },
+ { PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_a4r4g4b4, 0xd0c0,
+ PIXMAN_a8r8g8b8, 0x5300ea00,
+ },
+ { PIXMAN_OP_OVER,
+ PIXMAN_a8r8g8b8, 0x20c6bf00,
+ PIXMAN_r5g6b5, 0xb9ff
+ },
+ { PIXMAN_OP_OVER,
+ PIXMAN_a8r8g8b8, 0x204ac7ff,
+ PIXMAN_r5g6b5, 0xc1ff
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0xffc3,
+ PIXMAN_a8r8g8b8, 0x102d00dd
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0x1f00,
+ PIXMAN_a8r8g8b8, 0x1bdf0c89
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0xf9d2,
+ PIXMAN_a8r8g8b8, 0x1076bcf7
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0x00c3,
+ PIXMAN_a8r8g8b8, 0x1bfe9ae5
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0x09ff,
+ PIXMAN_a8r8g8b8, 0x0b00c16c
+ },
+ { PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_a2r2g2b2, 0xbc,
+ PIXMAN_a8r8g8b8, 0x9efff1ff
+ },
+ { PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_a4r4g4b4, 0xae5f,
+ PIXMAN_a8r8g8b8, 0xf215b675
+ },
+ { PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_a8r8g8b8, 0xce007980,
+ PIXMAN_a8r8g8b8, 0x80ffe4ad
+ },
+ { PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_a8r8g8b8, 0xb8b07bea,
+ PIXMAN_a4r4g4b4, 0x939c
+ },
+ { PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_r5g6b5, 0x0063,
+ PIXMAN_a8r8g8b8, 0x10bb1ed7,
+ },
+};
+
+static void
+fill (pixman_image_t *image, uint32_t pixel)
+{
+ uint8_t *data = (uint8_t *)pixman_image_get_data (image);
+ int bytes_per_pixel = PIXMAN_FORMAT_BPP (pixman_image_get_format (image)) / 8;
+ int n_bytes = pixman_image_get_stride (image) * pixman_image_get_height (image);
+ int i;
+
+ switch (bytes_per_pixel)
+ {
+ case 4:
+ for (i = 0; i < n_bytes / 4; ++i)
+ ((uint32_t *)data)[i] = pixel;
+ break;
+
+ case 2:
+ pixel &= 0xffff;
+ for (i = 0; i < n_bytes / 2; ++i)
+ ((uint16_t *)data)[i] = pixel;
+ break;
+
+ case 1:
+ pixel &= 0xff;
+ for (i = 0; i < n_bytes; ++i)
+ ((uint8_t *)data)[i] = pixel;
+ break;
+
+ default:
+ assert (0);
+ break;
+ }
+}
+
+static uint32_t
+access (pixman_image_t *image, int x, int y)
+{
+ int bytes_per_pixel;
+ int stride;
+ uint32_t result;
+ uint8_t *location;
+
+ if (x < 0 || x >= image->bits.width || y < 0 || y >= image->bits.height)
+ return 0;
+
+ bytes_per_pixel = PIXMAN_FORMAT_BPP (image->bits.format) / 8;
+ stride = image->bits.rowstride * 4;
+
+ location = (uint8_t *)image->bits.bits + y * stride + x * bytes_per_pixel;
+
+ if (bytes_per_pixel == 4)
+ result = *(uint32_t *)location;
+ else if (bytes_per_pixel == 2)
+ result = *(uint16_t *)location;
+ else if (bytes_per_pixel == 1)
+ result = *(uint8_t *)location;
+ else
+ assert (0);
+
+ return result;
+}
+
+static pixman_bool_t
+verify (int test_no, const pixel_combination_t *combination, int size)
+{
+ pixman_image_t *src, *dest;
+ pixel_checker_t src_checker, dest_checker;
+ color_t source_color, dest_color, reference_color;
+ pixman_bool_t result = TRUE;
+ int i, j;
+
+ /* Compute reference color */
+ pixel_checker_init (&src_checker, combination->src_format);
+ pixel_checker_init (&dest_checker, combination->dest_format);
+ pixel_checker_convert_pixel_to_color (
+ &src_checker, combination->src_pixel, &source_color);
+ pixel_checker_convert_pixel_to_color (
+ &dest_checker, combination->dest_pixel, &dest_color);
+ do_composite (combination->op,
+ &source_color, NULL, &dest_color,
+ &reference_color, FALSE);
+
+ src = pixman_image_create_bits (
+ combination->src_format, size, size, NULL, -1);
+ dest = pixman_image_create_bits (
+ combination->dest_format, size, size, NULL, -1);
+
+ fill (src, combination->src_pixel);
+ fill (dest, combination->dest_pixel);
+
+ pixman_image_composite32 (
+ combination->op, src, NULL, dest, 0, 0, 0, 0, 0, 0, size, size);
+
+ for (j = 0; j < size; ++j)
+ {
+ for (i = 0; i < size; ++i)
+ {
+ uint32_t computed = access (dest, i, j);
+ int32_t a, r, g, b;
+
+ if (!pixel_checker_check (&dest_checker, computed, &reference_color))
+ {
+ printf ("----------- Test %d failed ----------\n", test_no);
+
+ printf (" operator: %s\n", operator_name (combination->op));
+ printf (" src format: %s\n", format_name (combination->src_format));
+ printf (" dest format: %s\n", format_name (combination->dest_format));
+ printf (" - source ARGB: %f %f %f %f (pixel: %8x)\n",
+ source_color.a, source_color.r, source_color.g, source_color.b,
+ combination->src_pixel);
+ pixel_checker_split_pixel (&src_checker, combination->src_pixel,
+ &a, &r, &g, &b);
+ printf (" %8d %8d %8d %8d\n", a, r, g, b);
+
+ printf (" - dest ARGB: %f %f %f %f (pixel: %8x)\n",
+ dest_color.a, dest_color.r, dest_color.g, dest_color.b,
+ combination->dest_pixel);
+ pixel_checker_split_pixel (&dest_checker, combination->dest_pixel,
+ &a, &r, &g, &b);
+ printf (" %8d %8d %8d %8d\n", a, r, g, b);
+
+ pixel_checker_split_pixel (&dest_checker, computed, &a, &r, &g, &b);
+ printf (" - expected ARGB: %f %f %f %f\n",
+ reference_color.a, reference_color.r, reference_color.g, reference_color.b);
+
+ pixel_checker_get_min (&dest_checker, &reference_color, &a, &r, &g, &b);
+ printf (" min acceptable: %8d %8d %8d %8d\n", a, r, g, b);
+
+ pixel_checker_split_pixel (&dest_checker, computed, &a, &r, &g, &b);
+ printf (" got: %8d %8d %8d %8d (pixel: %8x)\n", a, r, g, b, computed);
+
+ pixel_checker_get_max (&dest_checker, &reference_color, &a, &r, &g, &b);
+ printf (" max acceptable: %8d %8d %8d %8d\n", a, r, g, b);
+
+ result = FALSE;
+ goto done;
+ }
+ }
+ }
+
+done:
+ pixman_image_unref (src);
+ pixman_image_unref (dest);
+
+ return result;
+}
+
+int
+main (int argc, char **argv)
+{
+ int result = 0;
+ int i, j;
+
+ for (i = 0; i < ARRAY_LENGTH (regressions); ++i)
+ {
+ const pixel_combination_t *combination = &(regressions[i]);
+
+ for (j = 1; j < 34; ++j)
+ {
+ if (!verify (i, combination, j))
+ {
+ result = 1;
+ break;
+ }
+ }
+ }
+
+ return result;
+}
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