--- /dev/null
+/*
+ * Copyright © 2005 Eric Anholt
+ * Copyright © 2009 Chris Wilson
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Eric Anholt not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Eric Anholt makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * ERIC ANHOLT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ERIC ANHOLT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <pixman.h>
+#include <stdio.h>
+#include <stdlib.h> /* abort() */
+#include <math.h>
+
+#define FALSE 0
+#define TRUE !FALSE
+
+#define ARRAY_LENGTH(A) ((int) (sizeof (A) / sizeof ((A) [0])))
+#define min(a,b) ((a) <= (b) ? (a) : (b))
+#define max(a,b) ((a) >= (b) ? (a) : (b))
+
+static struct color {
+ double r,g,b,a;
+} colors[] = {
+ /* these are premultiplied in main() */
+ {1.0, 1.0, 1.0, 1.0},
+ {1.0, 0.0, 0.0, 1.0},
+ {0.0, 1.0, 0.0, 1.0},
+ {0.0, 0.0, 1.0, 1.0},
+ {0.0, 0.0, 0.0, 1.0},
+ {0.5, 0.0, 0.0, 0.5},
+};
+
+static uint16_t
+_color_double_to_short (double d)
+{
+ uint32_t i;
+
+ i = (uint32_t) (d * 65536);
+ i -= (i >> 16);
+
+ return i;
+}
+
+static void
+compute_pixman_color (const struct color *color,
+ pixman_color_t *out)
+{
+ out->red = _color_double_to_short (color->r);
+ out->green = _color_double_to_short (color->g);
+ out->blue = _color_double_to_short (color->b);
+ out->alpha = _color_double_to_short (color->a);
+}
+
+static const struct format {
+ pixman_format_code_t format;
+ const char *name;
+} formats[] = {
+#define P(x) { PIXMAN_##x, #x }
+ P(a8),
+
+ /* 32bpp formats */
+ P(a8r8g8b8),
+ P(x8r8g8b8),
+ P(a8b8g8r8),
+ P(x8b8g8r8),
+ P(b8g8r8a8),
+ P(b8g8r8x8),
+
+ /* XXX: and here the errors begin! */
+#if 0
+ P(x2r10g10b10),
+ P(a2r10g10b10),
+ P(x2b10g10r10),
+ P(a2b10g10r10),
+
+ /* 24bpp formats */
+ P(r8g8b8),
+ P(b8g8r8),
+
+ /* 16bpp formats */
+ P(r5g6b5),
+ P(b5g6r5),
+
+ P(a1r5g5b5),
+ P(x1r5g5b5),
+ P(a1b5g5r5),
+ P(x1b5g5r5),
+ P(a4r4g4b4),
+ P(x4r4g4b4),
+ P(a4b4g4r4),
+ P(x4b4g4r4),
+
+ /* 8bpp formats */
+ P(a8),
+ P(r3g3b2),
+ P(b2g3r3),
+ P(a2r2g2b2),
+ P(a2b2g2r2),
+
+ P(x4a4),
+
+ /* 4bpp formats */
+ P(a4),
+ P(r1g2b1),
+ P(b1g2r1),
+ P(a1r1g1b1),
+ P(a1b1g1r1),
+
+ /* 1bpp formats */
+ P(a1)
+#endif
+#undef P
+};
+
+struct image {
+ pixman_image_t *image;
+ const struct format *format;
+ const struct color *color;
+ int size;
+};
+
+static const struct operator {
+ pixman_op_t op;
+ const char *name;
+} operators[] = {
+#define P(x) { PIXMAN_OP_##x, #x }
+ P(CLEAR),
+ P(SRC),
+ P(DST),
+ P(OVER),
+ P(OVER_REVERSE),
+ P(IN),
+ P(IN_REVERSE),
+ P(OUT),
+ P(OUT_REVERSE),
+ P(ATOP),
+ P(ATOP_REVERSE),
+ P(XOR),
+ P(ADD),
+ P(SATURATE),
+
+ P(DISJOINT_CLEAR),
+ P(DISJOINT_SRC),
+ P(DISJOINT_DST),
+ P(DISJOINT_OVER),
+ P(DISJOINT_OVER_REVERSE),
+ P(DISJOINT_IN),
+ P(DISJOINT_IN_REVERSE),
+ P(DISJOINT_OUT),
+ P(DISJOINT_OUT_REVERSE),
+ P(DISJOINT_ATOP),
+ P(DISJOINT_ATOP_REVERSE),
+ P(DISJOINT_XOR),
+
+ P(CONJOINT_CLEAR),
+ P(CONJOINT_SRC),
+ P(CONJOINT_DST),
+ P(CONJOINT_OVER),
+ P(CONJOINT_OVER_REVERSE),
+ P(CONJOINT_IN),
+ P(CONJOINT_IN_REVERSE),
+ P(CONJOINT_OUT),
+ P(CONJOINT_OUT_REVERSE),
+ P(CONJOINT_ATOP),
+ P(CONJOINT_ATOP_REVERSE),
+ P(CONJOINT_XOR),
+#undef P
+};
+
+static double
+calc_op (pixman_op_t op, double src, double dst, double srca, double dsta)
+{
+#define mult_chan(src, dst, Fa, Fb) min ((src) * (Fa) + (dst) * (Fb), 1.0)
+
+ double Fa, Fb;
+
+ switch (op) {
+ case PIXMAN_OP_CLEAR:
+ case PIXMAN_OP_DISJOINT_CLEAR:
+ case PIXMAN_OP_CONJOINT_CLEAR:
+ return mult_chan (src, dst, 0.0, 0.0);
+
+ case PIXMAN_OP_SRC:
+ case PIXMAN_OP_DISJOINT_SRC:
+ case PIXMAN_OP_CONJOINT_SRC:
+ return mult_chan (src, dst, 1.0, 0.0);
+
+ case PIXMAN_OP_DST:
+ case PIXMAN_OP_DISJOINT_DST:
+ case PIXMAN_OP_CONJOINT_DST:
+ return mult_chan (src, dst, 0.0, 1.0);
+
+ case PIXMAN_OP_OVER:
+ return mult_chan (src, dst, 1.0, 1.0 - srca);
+
+ case PIXMAN_OP_OVER_REVERSE:
+ return mult_chan (src, dst, 1.0 - dsta, 1.0);
+
+ case PIXMAN_OP_IN:
+ return mult_chan (src, dst, dsta, 0.0);
+
+ case PIXMAN_OP_IN_REVERSE:
+ return mult_chan (src, dst, 0.0, srca);
+
+ case PIXMAN_OP_OUT:
+ return mult_chan (src, dst, 1.0 - dsta, 0.0);
+
+ case PIXMAN_OP_OUT_REVERSE:
+ return mult_chan (src, dst, 0.0, 1.0 - srca);
+
+ case PIXMAN_OP_ATOP:
+ return mult_chan (src, dst, dsta, 1.0 - srca);
+
+ case PIXMAN_OP_ATOP_REVERSE:
+ return mult_chan (src, dst, 1.0 - dsta, srca);
+
+ case PIXMAN_OP_XOR:
+ return mult_chan (src, dst, 1.0 - dsta, 1.0 - srca);
+
+ case PIXMAN_OP_ADD:
+ return mult_chan (src, dst, 1.0, 1.0);
+
+ case PIXMAN_OP_SATURATE:
+ case PIXMAN_OP_DISJOINT_OVER_REVERSE:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = min (1.0, (1.0 - dsta) / srca);
+ return mult_chan (src, dst, Fa, 1.0);
+
+ case PIXMAN_OP_DISJOINT_OVER:
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = min (1.0, (1.0 - srca) / dsta);
+ return mult_chan (src, dst, 1.0, Fb);
+
+ case PIXMAN_OP_DISJOINT_IN:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = max (0.0, 1.0 - (1.0 - dsta) / srca);
+ return mult_chan (src, dst, Fa, 0.0);
+
+ case PIXMAN_OP_DISJOINT_IN_REVERSE:
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = max (0.0, 1.0 - (1.0 - srca) / dsta);
+ return mult_chan (src, dst, 0.0, Fb);
+
+ case PIXMAN_OP_DISJOINT_OUT:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = min (1.0, (1.0 - dsta) / srca);
+ return mult_chan (src, dst, Fa, 0.0);
+
+ case PIXMAN_OP_DISJOINT_OUT_REVERSE:
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = min (1.0, (1.0 - srca) / dsta);
+ return mult_chan (src, dst, 0.0, Fb);
+
+ case PIXMAN_OP_DISJOINT_ATOP:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = max (0.0, 1.0 - (1.0 - dsta) / srca);
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = min (1.0, (1.0 - srca) / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_DISJOINT_ATOP_REVERSE:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = min (1.0, (1.0 - dsta) / srca);
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = max (0.0, 1.0 - (1.0 - srca) / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_DISJOINT_XOR:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = min (1.0, (1.0 - dsta) / srca);
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = min (1.0, (1.0 - srca) / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_CONJOINT_OVER:
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = max (0.0, 1.0 - srca / dsta);
+ return mult_chan (src, dst, 1.0, Fb);
+
+ case PIXMAN_OP_CONJOINT_OVER_REVERSE:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = max (0.0, 1.0 - dsta / srca);
+ return mult_chan (src, dst, Fa, 1.0);
+
+ case PIXMAN_OP_CONJOINT_IN:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = min (1.0, dsta / srca);
+ return mult_chan (src, dst, Fa, 0.0);
+
+ case PIXMAN_OP_CONJOINT_IN_REVERSE:
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = min (1.0, srca / dsta);
+ return mult_chan (src, dst, 0.0, Fb);
+
+ case PIXMAN_OP_CONJOINT_OUT:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = max (0.0, 1.0 - dsta / srca);
+ return mult_chan (src, dst, Fa, 0.0);
+
+ case PIXMAN_OP_CONJOINT_OUT_REVERSE:
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = max (0.0, 1.0 - srca / dsta);
+ return mult_chan (src, dst, 0.0, Fb);
+
+ case PIXMAN_OP_CONJOINT_ATOP:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = min (1.0, dsta / srca);
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = max (0.0, 1.0 - srca / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_CONJOINT_ATOP_REVERSE:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = max (0.0, 1.0 - dsta / srca);
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = min (1.0, srca / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_CONJOINT_XOR:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = max (0.0, 1.0 - dsta / srca);
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = max (0.0, 1.0 - srca / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ default:
+ abort();
+ }
+#undef mult_chan
+}
+
+static void
+do_composite (pixman_op_t op,
+ const struct color *src,
+ const struct color *mask,
+ const struct color *dst,
+ struct color *result,
+ pixman_bool_t componentAlpha)
+{
+ struct color srcval, srcalpha;
+
+ if (mask == NULL) {
+ srcval = *src;
+
+ srcalpha.r = src->a;
+ srcalpha.g = src->a;
+ srcalpha.b = src->a;
+ srcalpha.a = src->a;
+ } else if (componentAlpha) {
+ srcval.r = src->r * mask->r;
+ srcval.g = src->g * mask->g;
+ srcval.b = src->b * mask->b;
+ srcval.a = src->a * mask->a;
+
+ srcalpha.r = src->a * mask->r;
+ srcalpha.g = src->a * mask->g;
+ srcalpha.b = src->a * mask->b;
+ srcalpha.a = src->a * mask->a;
+ } else {
+ srcval.r = src->r * mask->a;
+ srcval.g = src->g * mask->a;
+ srcval.b = src->b * mask->a;
+ srcval.a = src->a * mask->a;
+
+ srcalpha.r = src->a * mask->a;
+ srcalpha.g = src->a * mask->a;
+ srcalpha.b = src->a * mask->a;
+ srcalpha.a = src->a * mask->a;
+ }
+
+ result->r = calc_op (op, srcval.r, dst->r, srcalpha.r, dst->a);
+ result->g = calc_op (op, srcval.g, dst->g, srcalpha.g, dst->a);
+ result->b = calc_op (op, srcval.b, dst->b, srcalpha.b, dst->a);
+ result->a = calc_op (op, srcval.a, dst->a, srcalpha.a, dst->a);
+}
+
+static void
+color_correct (pixman_format_code_t format,
+ struct color *color)
+{
+#define round_pix(pix, mask) \
+ ((int)((pix) * (mask) + .5) / (double) (mask))
+
+ if (PIXMAN_FORMAT_R (format) == 0) {
+ color->r = 0.0;
+ color->g = 0.0;
+ color->b = 0.0;
+ } else {
+ color->r = round_pix (color->r, PIXMAN_FORMAT_R (format));
+ color->g = round_pix (color->g, PIXMAN_FORMAT_G (format));
+ color->b = round_pix (color->b, PIXMAN_FORMAT_B (format));
+ }
+
+ if (PIXMAN_FORMAT_A (format) == 0)
+ color->a = 1.0;
+ else
+ color->a = round_pix (color->a, PIXMAN_FORMAT_A (format));
+
+#undef round_pix
+}
+
+static void
+get_pixel (pixman_image_t *image,
+ pixman_format_code_t format,
+ struct color *color)
+{
+#define MASK(N) ((1UL << (N))-1)
+
+ unsigned long rs, gs, bs, as;
+ int a, r, g, b;
+ unsigned long val;
+
+ val = *(unsigned long *) pixman_image_get_data (image);
+
+ /* Number of bits in each channel */
+ a = PIXMAN_FORMAT_A (format);
+ r = PIXMAN_FORMAT_R (format);
+ g = PIXMAN_FORMAT_G (format);
+ b = PIXMAN_FORMAT_B (format);
+
+ switch (PIXMAN_FORMAT_TYPE (format)) {
+ case PIXMAN_TYPE_ARGB:
+ bs = 0;
+ gs = b + bs;
+ rs = g + gs;
+ as = r + rs;
+ break;
+
+ case PIXMAN_TYPE_ABGR:
+ rs = 0;
+ gs = r + rs;
+ bs = g + gs;
+ as = b + bs;
+ break;
+
+ case PIXMAN_TYPE_BGRA:
+ as = 0;
+ rs = PIXMAN_FORMAT_BPP (format) - (b + g + r);
+ gs = r + rs;
+ bs = g + gs;
+ break;
+
+ case PIXMAN_TYPE_A:
+ as = 0;
+ rs = 0;
+ gs = 0;
+ bs = 0;
+ break;
+
+ case PIXMAN_TYPE_OTHER:
+ case PIXMAN_TYPE_COLOR:
+ case PIXMAN_TYPE_GRAY:
+ case PIXMAN_TYPE_YUY2:
+ case PIXMAN_TYPE_YV12:
+ default:
+ abort ();
+ as = 0;
+ rs = 0;
+ gs = 0;
+ bs = 0;
+ break;
+ }
+
+ if (MASK (a) != 0)
+ color->a = ((val >> as) & MASK (a)) / (double) MASK (a);
+ else
+ color->a = 1.0;
+
+ if (MASK (r) != 0) {
+ color->r = ((val >> rs) & MASK (r)) / (double) MASK (r);
+ color->g = ((val >> gs) & MASK (g)) / (double) MASK (g);
+ color->b = ((val >> bs) & MASK (b)) / (double) MASK (b);
+ } else {
+ color->r = 0.0;
+ color->g = 0.0;
+ color->b = 0.0;
+ }
+
+#undef MASK
+}
+
+static double
+eval_diff (struct color *expected, struct color *test)
+{
+ double rscale, gscale, bscale, ascale;
+ double rdiff, gdiff, bdiff, adiff;
+
+ /* XXX: Need to be provided mask shifts so we can produce useful error
+ * values.
+ */
+ rscale = 1.0 * (1 << 5);
+ gscale = 1.0 * (1 << 6);
+ bscale = 1.0 * (1 << 5);
+ ascale = 1.0 * 32;
+
+ rdiff = fabs (test->r - expected->r) * rscale;
+ bdiff = fabs (test->g - expected->g) * gscale;
+ gdiff = fabs (test->b - expected->b) * bscale;
+ adiff = fabs (test->a - expected->a) * ascale;
+
+ return max (max (max (rdiff, gdiff), bdiff), adiff);
+}
+
+static char *
+describe_image (struct image *info, char *buf, int buflen)
+{
+ if (info->size) {
+ snprintf (buf, buflen, "%s %dx%d",
+ info->format->name,
+ info->size, info->size);
+ } else {
+ snprintf (buf, buflen, "solid");
+ }
+
+ return buf;
+}
+
+/* Test a composite of a given operation, source, mask, and destination picture.
+ * Fills the window, and samples from the 0,0 pixel corner.
+ */
+static pixman_bool_t
+composite_test (struct image *dst,
+ const struct operator *op,
+ struct image *src,
+ struct image *mask,
+ pixman_bool_t componentAlpha)
+{
+ pixman_color_t fill;
+ pixman_rectangle16_t rect;
+ struct color expected, result, tdst, tsrc, tmsk;
+ double diff;
+ pixman_bool_t success = TRUE;
+
+ compute_pixman_color (dst->color, &fill);
+ rect.x = rect.y = 0;
+ rect.width = rect.height = dst->size;
+ pixman_image_fill_rectangles (PIXMAN_OP_SRC, dst->image,
+ &fill, 1, &rect);
+
+ if (mask != NULL) {
+ pixman_image_set_component_alpha (mask->image, componentAlpha);
+ pixman_image_composite (op->op, src->image, mask->image, dst->image,
+ 0, 0,
+ 0, 0,
+ 0, 0,
+ dst->size, dst->size);
+
+ tmsk = *mask->color;
+ if (mask->size) {
+ color_correct (mask->format->format, &tmsk);
+ if (componentAlpha &&
+ PIXMAN_FORMAT_R (mask->format->format) == 0)
+ {
+ /* Ax component-alpha masks expand alpha into all color channels. */
+ tmsk.r = tmsk.g = tmsk.b = tmsk.a;
+ }
+ }
+ } else {
+ pixman_image_composite (op->op, src->image, NULL, dst->image,
+ 0, 0,
+ 0, 0,
+ 0, 0,
+ dst->size, dst->size);
+ }
+ get_pixel (dst->image, dst->format->format, &result);
+
+ tdst = *dst->color;
+ color_correct (dst->format->format, &tdst);
+ tsrc = *src->color;
+ if (src->size)
+ color_correct (src->format->format, &tsrc);
+ do_composite (op->op, &tsrc, mask ? &tmsk : NULL, &tdst,
+ &expected, componentAlpha);
+ color_correct (dst->format->format, &expected);
+
+ diff = eval_diff (&expected, &result);
+ if (diff > 3.0) {
+ char buf[40];
+
+ snprintf (buf, sizeof (buf),
+ "%s %scomposite",
+ op->name,
+ componentAlpha ? "CA " : "");
+
+ printf("%s test error of %.4f --\n"
+ " R G B A\n"
+ "got: %.2f %.2f %.2f %.2f [%08lx]\n"
+ "expected: %.2f %.2f %.2f %.2f\n",
+ buf, diff,
+ result.r, result.g, result.b, result.a,
+ *(unsigned long *) pixman_image_get_data (dst->image),
+ expected.r, expected.g, expected.b, expected.a);
+
+ if (mask != NULL) {
+ printf("src color: %.2f %.2f %.2f %.2f\n"
+ "msk color: %.2f %.2f %.2f %.2f\n"
+ "dst color: %.2f %.2f %.2f %.2f\n",
+ src->color->r, src->color->g,
+ src->color->b, src->color->a,
+ mask->color->r, mask->color->g,
+ mask->color->b, mask->color->a,
+ dst->color->r, dst->color->g,
+ dst->color->b, dst->color->a);
+ printf ("src: %s, ", describe_image (src, buf, sizeof (buf)));
+ printf ("mask: %s, ", describe_image (mask, buf, sizeof (buf)));
+ printf ("dst: %s\n\n", describe_image (dst, buf, sizeof (buf)));
+ } else {
+ printf("src color: %.2f %.2f %.2f %.2f\n"
+ "dst color: %.2f %.2f %.2f %.2f\n",
+ src->color->r, src->color->g,
+ src->color->b, src->color->a,
+ dst->color->r, dst->color->g,
+ dst->color->b, dst->color->a);
+ printf ("src: %s, ", describe_image (src, buf, sizeof (buf)));
+ printf ("dst: %s\n\n", describe_image (dst, buf, sizeof (buf)));
+ }
+
+ success = FALSE;
+ }
+
+ return success;
+}
+
+static void
+image_init (struct image *info,
+ int color,
+ int format,
+ int size)
+{
+ pixman_color_t fill;
+
+ info->color = &colors[color];
+ compute_pixman_color (info->color, &fill);
+
+ info->format = &formats[format];
+ if (size) {
+ pixman_rectangle16_t rect;
+
+ info->image = pixman_image_create_bits (info->format->format,
+ size, size, NULL, 0);
+
+ rect.x = rect.y = 0;
+ rect.width = rect.height = size;
+ pixman_image_fill_rectangles (PIXMAN_OP_SRC, info->image, &fill,
+ 1, &rect);
+ } else {
+ info->image = pixman_image_create_solid_fill (&fill);
+ }
+
+ info->size = size;
+}
+
+static void
+image_fini (struct image *info)
+{
+ pixman_image_unref (info->image);
+}
+
+int
+main (void)
+{
+ pixman_bool_t ok, group_ok = TRUE, ca;
+ int i, d, m, s;
+ int tests_passed = 0, tests_total = 0;
+ int sizes[] = { 1, 10 };
+ int num_tests;
+
+ for (i = 0; i < ARRAY_LENGTH (colors); i++) {
+ colors[i].r *= colors[i].a;
+ colors[i].g *= colors[i].a;
+ colors[i].b *= colors[i].a;
+ }
+
+ num_tests = ARRAY_LENGTH (colors) * ARRAY_LENGTH (formats);
+
+ for (d = 0; d < num_tests; d++) {
+ struct image dst;
+
+ image_init (&dst,
+ d / ARRAY_LENGTH (formats),
+ d % ARRAY_LENGTH (formats),
+ 1);
+
+
+ for (s = -ARRAY_LENGTH (colors); s < ARRAY_LENGTH (sizes) * num_tests; s++) {
+ struct image src;
+
+ if (s < 0) {
+ image_init (&src, -s - 1, 0, 0);
+ } else {
+ image_init (&src,
+ s / ARRAY_LENGTH (sizes) / ARRAY_LENGTH (formats),
+ s / ARRAY_LENGTH (sizes) % ARRAY_LENGTH (formats),
+ sizes[s % ARRAY_LENGTH (sizes)]);
+ }
+
+ for (m = -ARRAY_LENGTH (colors); m < ARRAY_LENGTH (sizes) * num_tests; m++) {
+ struct image mask;
+
+ if (m < 0) {
+ image_init (&mask, -m - 1, 0, 0);
+ } else {
+ image_init (&mask,
+ m / ARRAY_LENGTH (sizes) / ARRAY_LENGTH (formats),
+ m / ARRAY_LENGTH (sizes) % ARRAY_LENGTH (formats),
+ sizes[m % ARRAY_LENGTH (sizes)]);
+ }
+
+ for (ca = -1; ca <= 1; ca++) {
+ for (i = 0; i < ARRAY_LENGTH (operators); i++) {
+ const struct operator *op = &operators[i];
+
+ switch (ca) {
+ case -1:
+ ok = composite_test (&dst, op, &src, NULL, ca);
+ break;
+ default:
+ ok = composite_test (&dst, op, &src, &mask, ca);
+ break;
+ }
+ group_ok = group_ok && ok;
+ tests_passed += ok;
+ tests_total++;
+ }
+ }
+
+ image_fini (&mask);
+ }
+ image_fini (&src);
+ }
+ image_fini (&dst);
+ }
+
+ return group_ok == FALSE;
+}
projects / platform / upstream / pixman.git / commitdiff