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-rw-r--r--pixman/test/Makefile.am96
-rw-r--r--pixman/test/composite.c1828
-rw-r--r--pixman/test/fetch-test.c392
-rw-r--r--pixman/test/stress-test.c1740
-rw-r--r--pixman/test/trap-crasher.c54
-rw-r--r--pixman/test/utils.c1170
-rw-r--r--pixman/test/utils.h280
7 files changed, 2780 insertions, 2780 deletions
diff --git a/pixman/test/Makefile.am b/pixman/test/Makefile.am
index 9dc72199e..d785c2c2e 100644
--- a/pixman/test/Makefile.am
+++ b/pixman/test/Makefile.am
@@ -1,48 +1,48 @@
-AM_CFLAGS = @OPENMP_CFLAGS@
-AM_LDFLAGS = @OPENMP_CFLAGS@ @TESTPROGS_EXTRA_LDFLAGS@
-LDADD = $(top_builddir)/pixman/libpixman-1.la -lm
-INCLUDES = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman
-
-TESTPROGRAMS = \
- a1-trap-test \
- pdf-op-test \
- region-test \
- region-translate-test \
- fetch-test \
- oob-test \
- trap-crasher \
- alpha-loop \
- scaling-crash-test \
- scaling-helpers-test \
- gradient-crash-test \
- alphamap \
- stress-test \
- composite-traps-test \
- blitters-test \
- scaling-test \
- affine-test \
- composite
-
-pdf_op_test_SOURCES = pdf-op-test.c utils.c utils.h
-region_test_SOURCES = region-test.c utils.c utils.h
-blitters_test_SOURCES = blitters-test.c utils.c utils.h
-composite_traps_test_SOURCES = composite-traps-test.c utils.c utils.h
-scaling_test_SOURCES = scaling-test.c utils.c utils.h
-affine_test_SOURCES = affine-test.c utils.c utils.h
-alphamap_SOURCES = alphamap.c utils.c utils.h
-alpha_loop_SOURCES = alpha-loop.c utils.c utils.h
-composite_SOURCES = composite.c utils.c utils.h
-gradient_crash_test_SOURCES = gradient-crash-test.c utils.c utils.h
-stress_test_SOURCES = stress-test.c utils.c utils.h
-scaling_helpers_test_SOURCES = scaling-helpers-test.c utils.c utils.h
-
-# Benchmarks
-
-BENCHMARKS = \
- lowlevel-blt-bench
-
-lowlevel_blt_bench_SOURCES = lowlevel-blt-bench.c utils.c utils.h
-
-noinst_PROGRAMS = $(TESTPROGRAMS) $(BENCHMARKS)
-
-TESTS = $(TESTPROGRAMS)
+AM_CFLAGS = @OPENMP_CFLAGS@
+AM_LDFLAGS = @OPENMP_CFLAGS@ @TESTPROGS_EXTRA_LDFLAGS@
+LDADD = $(top_builddir)/pixman/libpixman-1.la -lm
+INCLUDES = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman
+
+TESTPROGRAMS = \
+ a1-trap-test \
+ pdf-op-test \
+ region-test \
+ region-translate-test \
+ fetch-test \
+ oob-test \
+ trap-crasher \
+ alpha-loop \
+ scaling-crash-test \
+ scaling-helpers-test \
+ gradient-crash-test \
+ alphamap \
+ stress-test \
+ composite-traps-test \
+ blitters-test \
+ scaling-test \
+ affine-test \
+ composite
+
+pdf_op_test_SOURCES = pdf-op-test.c utils.c utils.h
+region_test_SOURCES = region-test.c utils.c utils.h
+blitters_test_SOURCES = blitters-test.c utils.c utils.h
+composite_traps_test_SOURCES = composite-traps-test.c utils.c utils.h
+scaling_test_SOURCES = scaling-test.c utils.c utils.h
+affine_test_SOURCES = affine-test.c utils.c utils.h
+alphamap_SOURCES = alphamap.c utils.c utils.h
+alpha_loop_SOURCES = alpha-loop.c utils.c utils.h
+composite_SOURCES = composite.c utils.c utils.h
+gradient_crash_test_SOURCES = gradient-crash-test.c utils.c utils.h
+stress_test_SOURCES = stress-test.c utils.c utils.h
+scaling_helpers_test_SOURCES = scaling-helpers-test.c utils.c utils.h
+
+# Benchmarks
+
+BENCHMARKS = \
+ lowlevel-blt-bench
+
+lowlevel_blt_bench_SOURCES = lowlevel-blt-bench.c utils.c utils.h
+
+noinst_PROGRAMS = $(TESTPROGRAMS) $(BENCHMARKS)
+
+TESTS = $(TESTPROGRAMS)
diff --git a/pixman/test/composite.c b/pixman/test/composite.c
index e6d52b990..5e486708d 100644
--- a/pixman/test/composite.c
+++ b/pixman/test/composite.c
@@ -1,914 +1,914 @@
-/*
- * Copyright © 2005 Eric Anholt
- * Copyright © 2009 Chris Wilson
- * Copyright © 2010 Soeren Sandmann
- * Copyright © 2010 Red Hat, Inc.
- *
- * 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.
- */
-#define PIXMAN_USE_INTERNAL_API
-#include <pixman.h>
-#include <stdio.h>
-#include <stdlib.h> /* abort() */
-#include <math.h>
-#include <config.h>
-#include <time.h>
-#include "utils.h"
-
-typedef struct color_t color_t;
-typedef struct format_t format_t;
-typedef struct image_t image_t;
-typedef struct operator_t operator_t;
-
-struct color_t
-{
- double r, g, b, a;
-};
-
-struct format_t
-{
- pixman_format_code_t format;
- const char *name;
-};
-
-static const color_t colors[] =
-{
- { 1.0, 1.0, 1.0, 1.0 },
- { 1.0, 1.0, 1.0, 0.0 },
- { 0.0, 0.0, 0.0, 1.0 },
- { 0.0, 0.0, 0.0, 0.0 },
- { 1.0, 0.0, 0.0, 1.0 },
- { 0.0, 1.0, 0.0, 1.0 },
- { 0.0, 0.0, 1.0, 1.0 },
- { 0.5, 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 color_t *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);
-}
-
-#define REPEAT 0x01000000
-#define FLAGS 0xff000000
-
-static const int sizes[] =
-{
- 0,
- 1,
- 1 | REPEAT,
- 10
-};
-
-static const format_t formats[] =
-{
-#define P(x) { PIXMAN_##x, #x }
-
- /* 32 bpp formats */
- P(a8r8g8b8),
- P(x8r8g8b8),
- P(a8b8g8r8),
- P(x8b8g8r8),
- P(b8g8r8a8),
- P(b8g8r8x8),
- P(x2r10g10b10),
- P(x2b10g10r10),
- P(a2r10g10b10),
- P(a2b10g10r10),
-
- /* 24 bpp formats */
- P(r8g8b8),
- P(b8g8r8),
- P(r5g6b5),
- P(b5g6r5),
-
- /* 16 bpp formats */
- P(x1r5g5b5),
- P(x1b5g5r5),
- P(a1r5g5b5),
- P(a1b5g5r5),
- P(a4b4g4r4),
- P(x4b4g4r4),
- P(a4r4g4b4),
- P(x4r4g4b4),
-
- /* 8 bpp formats */
- P(a8),
- P(r3g3b2),
- P(b2g3r3),
- P(a2r2g2b2),
- P(a2b2g2r2),
- P(x4a4),
-
- /* 4 bpp formats */
- P(a4),
- P(r1g2b1),
- P(b1g2r1),
- P(a1r1g1b1),
- P(a1b1g1r1),
-
- /* 1 bpp formats */
- P(a1)
-#undef P
-};
-
-struct image_t
-{
- pixman_image_t *image;
- const format_t *format;
- const color_t *color;
- pixman_repeat_t repeat;
- int size;
-};
-
-struct operator_t
-{
- pixman_op_t op;
- const char *name;
-};
-
-static const operator_t 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);
-
- case PIXMAN_OP_MULTIPLY:
- case PIXMAN_OP_SCREEN:
- case PIXMAN_OP_OVERLAY:
- case PIXMAN_OP_DARKEN:
- case PIXMAN_OP_LIGHTEN:
- case PIXMAN_OP_COLOR_DODGE:
- case PIXMAN_OP_COLOR_BURN:
- case PIXMAN_OP_HARD_LIGHT:
- case PIXMAN_OP_SOFT_LIGHT:
- case PIXMAN_OP_DIFFERENCE:
- case PIXMAN_OP_EXCLUSION:
- case PIXMAN_OP_HSL_HUE:
- case PIXMAN_OP_HSL_SATURATION:
- case PIXMAN_OP_HSL_COLOR:
- case PIXMAN_OP_HSL_LUMINOSITY:
- default:
- abort();
- return 0; /* silence MSVC */
- }
-#undef mult_chan
-}
-
-static void
-do_composite (pixman_op_t op,
- const color_t *src,
- const color_t *mask,
- const color_t *dst,
- color_t *result,
- pixman_bool_t component_alpha)
-{
- color_t 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 (component_alpha)
- {
- 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,
- color_t *color)
-{
-#define MASK(x) ((1 << (x)) - 1)
-#define round_pix(pix, m) \
- ((int)((pix) * (MASK(m)) + .5) / (double) (MASK(m)))
-
- 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
-#undef MASK
-}
-
-static void
-get_pixel (pixman_image_t *image,
- pixman_format_code_t format,
- color_t *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);
-#ifdef WORDS_BIGENDIAN
- val >>= 8 * sizeof(val) - PIXMAN_FORMAT_BPP (format);
-#endif
-
- /* 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 (color_t *expected, color_t *test, pixman_format_code_t format)
-{
- double rscale, gscale, bscale, ascale;
- double rdiff, gdiff, bdiff, adiff;
-
- rscale = 1.0 * ((1 << PIXMAN_FORMAT_R (format)) - 1);
- gscale = 1.0 * ((1 << PIXMAN_FORMAT_G (format)) - 1);
- bscale = 1.0 * ((1 << PIXMAN_FORMAT_B (format)) - 1);
- ascale = 1.0 * ((1 << PIXMAN_FORMAT_A (format)) - 1);
-
- 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 (image_t *info, char *buf)
-{
- if (info->size)
- {
- sprintf (buf, "%s %dx%d%s",
- info->format->name,
- info->size, info->size,
- info->repeat ? "R" :"");
- }
- else
- {
- sprintf (buf, "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 (image_t *dst,
- const operator_t *op,
- image_t *src,
- image_t *mask,
- pixman_bool_t component_alpha)
-{
- pixman_color_t fill;
- pixman_rectangle16_t rect;
- color_t 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, component_alpha);
- 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 (component_alpha &&
- 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, component_alpha);
- color_correct (dst->format->format, &expected);
-
- diff = eval_diff (&expected, &result, dst->format->format);
-
- /* FIXME: We should find out what deviation is acceptable. 3.0
- * is clearly absurd for 2 bit formats for example. On the other
- * hand currently 1.0 does not work.
- */
- if (diff > 3.0)
- {
- char buf[40];
-
- sprintf (buf, "%s %scomposite",
- op->name,
- component_alpha ? "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));
- printf ("mask: %s, ", describe_image (mask, buf));
- printf ("dst: %s\n\n", describe_image (dst, 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));
- printf ("dst: %s\n\n", describe_image (dst, buf));
- }
-
- success = FALSE;
- }
-
- return success;
-}
-
-static void
-image_init (image_t *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];
- info->size = sizes[size] & ~FLAGS;
- info->repeat = PIXMAN_REPEAT_NONE;
-
- if (info->size)
- {
- pixman_rectangle16_t rect;
-
- info->image = pixman_image_create_bits (info->format->format,
- info->size, info->size,
- NULL, 0);
-
- rect.x = rect.y = 0;
- rect.width = rect.height = info->size;
- pixman_image_fill_rectangles (PIXMAN_OP_SRC, info->image, &fill,
- 1, &rect);
-
- if (size & REPEAT)
- {
- pixman_image_set_repeat (info->image, PIXMAN_REPEAT_NORMAL);
- info->repeat = PIXMAN_REPEAT_NORMAL;
- }
- }
- else
- {
- info->image = pixman_image_create_solid_fill (&fill);
- }
-}
-
-static void
-image_fini (image_t *info)
-{
- pixman_image_unref (info->image);
-}
-
-static int
-random_size (void)
-{
- return lcg_rand_n (ARRAY_LENGTH (sizes));
-}
-
-static int
-random_color (void)
-{
- return lcg_rand_n (ARRAY_LENGTH (colors));
-}
-
-static int
-random_format (void)
-{
- return lcg_rand_n (ARRAY_LENGTH (formats));
-}
-
-static pixman_bool_t
-run_test (uint32_t seed)
-{
- image_t src, mask, dst;
- const operator_t *op;
- int ca;
- int ok;
-
- lcg_srand (seed);
-
- image_init (&dst, random_color(), random_format(), 1);
- image_init (&src, random_color(), random_format(), random_size());
- image_init (&mask, random_color(), random_format(), random_size());
-
- op = &(operators [lcg_rand_n (ARRAY_LENGTH (operators))]);
-
- ca = lcg_rand_n (3);
-
- switch (ca)
- {
- case 0:
- ok = composite_test (&dst, op, &src, NULL, FALSE);
- break;
- case 1:
- ok = composite_test (&dst, op, &src, &mask, FALSE);
- break;
- case 2:
- ok = composite_test (&dst, op, &src, &mask,
- mask.size? TRUE : FALSE);
- break;
- default:
- ok = FALSE;
- break;
- }
-
- image_fini (&src);
- image_fini (&mask);
- image_fini (&dst);
-
- return ok;
-}
-
-int
-main (int argc, char **argv)
-{
-#define N_TESTS (8 * 1024 * 1024)
- int result = 0;
- uint32_t i;
-
- if (argc > 1)
- {
- char *end;
-
- i = strtol (argv[1], &end, 0);
-
- if (end != argv[1])
- {
- if (!run_test (i))
- return 1;
- else
- return 0;
- }
- else
- {
- printf ("Usage:\n\n %s <number>\n\n", argv[0]);
- return -1;
- }
- }
-
- uint32_t seed;
-
- if (getenv ("PIXMAN_RANDOMIZE_TESTS"))
- seed = get_random_seed();
- else
- seed = 1;
-
-#ifdef USE_OPENMP
-# pragma omp parallel for default(none) shared(result, argv, seed)
-#endif
- for (i = seed; i <= N_TESTS; ++i)
- {
- if (!result && !run_test (i))
- {
- printf ("Test 0x%08X failed.\n", i);
-
- result = i;
- }
- }
-
- return result;
-}
+/*
+ * Copyright © 2005 Eric Anholt
+ * Copyright © 2009 Chris Wilson
+ * Copyright © 2010 Soeren Sandmann
+ * Copyright © 2010 Red Hat, Inc.
+ *
+ * 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.
+ */
+#define PIXMAN_USE_INTERNAL_API
+#include <pixman.h>
+#include <stdio.h>
+#include <stdlib.h> /* abort() */
+#include <math.h>
+#include <config.h>
+#include <time.h>
+#include "utils.h"
+
+typedef struct color_t color_t;
+typedef struct format_t format_t;
+typedef struct image_t image_t;
+typedef struct operator_t operator_t;
+
+struct color_t
+{
+ double r, g, b, a;
+};
+
+struct format_t
+{
+ pixman_format_code_t format;
+ const char *name;
+};
+
+static const color_t colors[] =
+{
+ { 1.0, 1.0, 1.0, 1.0 },
+ { 1.0, 1.0, 1.0, 0.0 },
+ { 0.0, 0.0, 0.0, 1.0 },
+ { 0.0, 0.0, 0.0, 0.0 },
+ { 1.0, 0.0, 0.0, 1.0 },
+ { 0.0, 1.0, 0.0, 1.0 },
+ { 0.0, 0.0, 1.0, 1.0 },
+ { 0.5, 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 color_t *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);
+}
+
+#define REPEAT 0x01000000
+#define FLAGS 0xff000000
+
+static const int sizes[] =
+{
+ 0,
+ 1,
+ 1 | REPEAT,
+ 10
+};
+
+static const format_t formats[] =
+{
+#define P(x) { PIXMAN_##x, #x }
+
+ /* 32 bpp formats */
+ P(a8r8g8b8),
+ P(x8r8g8b8),
+ P(a8b8g8r8),
+ P(x8b8g8r8),
+ P(b8g8r8a8),
+ P(b8g8r8x8),
+ P(x2r10g10b10),
+ P(x2b10g10r10),
+ P(a2r10g10b10),
+ P(a2b10g10r10),
+
+ /* 24 bpp formats */
+ P(r8g8b8),
+ P(b8g8r8),
+ P(r5g6b5),
+ P(b5g6r5),
+
+ /* 16 bpp formats */
+ P(x1r5g5b5),
+ P(x1b5g5r5),
+ P(a1r5g5b5),
+ P(a1b5g5r5),
+ P(a4b4g4r4),
+ P(x4b4g4r4),
+ P(a4r4g4b4),
+ P(x4r4g4b4),
+
+ /* 8 bpp formats */
+ P(a8),
+ P(r3g3b2),
+ P(b2g3r3),
+ P(a2r2g2b2),
+ P(a2b2g2r2),
+ P(x4a4),
+
+ /* 4 bpp formats */
+ P(a4),
+ P(r1g2b1),
+ P(b1g2r1),
+ P(a1r1g1b1),
+ P(a1b1g1r1),
+
+ /* 1 bpp formats */
+ P(a1)
+#undef P
+};
+
+struct image_t
+{
+ pixman_image_t *image;
+ const format_t *format;
+ const color_t *color;
+ pixman_repeat_t repeat;
+ int size;
+};
+
+struct operator_t
+{
+ pixman_op_t op;
+ const char *name;
+};
+
+static const operator_t 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);
+
+ case PIXMAN_OP_MULTIPLY:
+ case PIXMAN_OP_SCREEN:
+ case PIXMAN_OP_OVERLAY:
+ case PIXMAN_OP_DARKEN:
+ case PIXMAN_OP_LIGHTEN:
+ case PIXMAN_OP_COLOR_DODGE:
+ case PIXMAN_OP_COLOR_BURN:
+ case PIXMAN_OP_HARD_LIGHT:
+ case PIXMAN_OP_SOFT_LIGHT:
+ case PIXMAN_OP_DIFFERENCE:
+ case PIXMAN_OP_EXCLUSION:
+ case PIXMAN_OP_HSL_HUE:
+ case PIXMAN_OP_HSL_SATURATION:
+ case PIXMAN_OP_HSL_COLOR:
+ case PIXMAN_OP_HSL_LUMINOSITY:
+ default:
+ abort();
+ return 0; /* silence MSVC */
+ }
+#undef mult_chan
+}
+
+static void
+do_composite (pixman_op_t op,
+ const color_t *src,
+ const color_t *mask,
+ const color_t *dst,
+ color_t *result,
+ pixman_bool_t component_alpha)
+{
+ color_t 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 (component_alpha)
+ {
+ 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,
+ color_t *color)
+{
+#define MASK(x) ((1 << (x)) - 1)
+#define round_pix(pix, m) \
+ ((int)((pix) * (MASK(m)) + .5) / (double) (MASK(m)))
+
+ 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
+#undef MASK
+}
+
+static void
+get_pixel (pixman_image_t *image,
+ pixman_format_code_t format,
+ color_t *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);
+#ifdef WORDS_BIGENDIAN
+ val >>= 8 * sizeof(val) - PIXMAN_FORMAT_BPP (format);
+#endif
+
+ /* 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 (color_t *expected, color_t *test, pixman_format_code_t format)
+{
+ double rscale, gscale, bscale, ascale;
+ double rdiff, gdiff, bdiff, adiff;
+
+ rscale = 1.0 * ((1 << PIXMAN_FORMAT_R (format)) - 1);
+ gscale = 1.0 * ((1 << PIXMAN_FORMAT_G (format)) - 1);
+ bscale = 1.0 * ((1 << PIXMAN_FORMAT_B (format)) - 1);
+ ascale = 1.0 * ((1 << PIXMAN_FORMAT_A (format)) - 1);
+
+ 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 (image_t *info, char *buf)
+{
+ if (info->size)
+ {
+ sprintf (buf, "%s %dx%d%s",
+ info->format->name,
+ info->size, info->size,
+ info->repeat ? "R" :"");
+ }
+ else
+ {
+ sprintf (buf, "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 (image_t *dst,
+ const operator_t *op,
+ image_t *src,
+ image_t *mask,
+ pixman_bool_t component_alpha)
+{
+ pixman_color_t fill;
+ pixman_rectangle16_t rect;
+ color_t 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, component_alpha);
+ 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 (component_alpha &&
+ 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, component_alpha);
+ color_correct (dst->format->format, &expected);
+
+ diff = eval_diff (&expected, &result, dst->format->format);
+
+ /* FIXME: We should find out what deviation is acceptable. 3.0
+ * is clearly absurd for 2 bit formats for example. On the other
+ * hand currently 1.0 does not work.
+ */
+ if (diff > 3.0)
+ {
+ char buf[40];
+
+ sprintf (buf, "%s %scomposite",
+ op->name,
+ component_alpha ? "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));
+ printf ("mask: %s, ", describe_image (mask, buf));
+ printf ("dst: %s\n\n", describe_image (dst, 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));
+ printf ("dst: %s\n\n", describe_image (dst, buf));
+ }
+
+ success = FALSE;
+ }
+
+ return success;
+}
+
+static void
+image_init (image_t *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];
+ info->size = sizes[size] & ~FLAGS;
+ info->repeat = PIXMAN_REPEAT_NONE;
+
+ if (info->size)
+ {
+ pixman_rectangle16_t rect;
+
+ info->image = pixman_image_create_bits (info->format->format,
+ info->size, info->size,
+ NULL, 0);
+
+ rect.x = rect.y = 0;
+ rect.width = rect.height = info->size;
+ pixman_image_fill_rectangles (PIXMAN_OP_SRC, info->image, &fill,
+ 1, &rect);
+
+ if (size & REPEAT)
+ {
+ pixman_image_set_repeat (info->image, PIXMAN_REPEAT_NORMAL);
+ info->repeat = PIXMAN_REPEAT_NORMAL;
+ }
+ }
+ else
+ {
+ info->image = pixman_image_create_solid_fill (&fill);
+ }
+}
+
+static void
+image_fini (image_t *info)
+{
+ pixman_image_unref (info->image);
+}
+
+static int
+random_size (void)
+{
+ return lcg_rand_n (ARRAY_LENGTH (sizes));
+}
+
+static int
+random_color (void)
+{
+ return lcg_rand_n (ARRAY_LENGTH (colors));
+}
+
+static int
+random_format (void)
+{
+ return lcg_rand_n (ARRAY_LENGTH (formats));
+}
+
+static pixman_bool_t
+run_test (uint32_t seed)
+{
+ image_t src, mask, dst;
+ const operator_t *op;
+ int ca;
+ int ok;
+
+ lcg_srand (seed);
+
+ image_init (&dst, random_color(), random_format(), 1);
+ image_init (&src, random_color(), random_format(), random_size());
+ image_init (&mask, random_color(), random_format(), random_size());
+
+ op = &(operators [lcg_rand_n (ARRAY_LENGTH (operators))]);
+
+ ca = lcg_rand_n (3);
+
+ switch (ca)
+ {
+ case 0:
+ ok = composite_test (&dst, op, &src, NULL, FALSE);
+ break;
+ case 1:
+ ok = composite_test (&dst, op, &src, &mask, FALSE);
+ break;
+ case 2:
+ ok = composite_test (&dst, op, &src, &mask,
+ mask.size? TRUE : FALSE);
+ break;
+ default:
+ ok = FALSE;
+ break;
+ }
+
+ image_fini (&src);
+ image_fini (&mask);
+ image_fini (&dst);
+
+ return ok;
+}
+
+int
+main (int argc, char **argv)
+{
+#define N_TESTS (8 * 1024 * 1024)
+ int result = 0;
+ uint32_t i;
+
+ if (argc > 1)
+ {
+ char *end;
+
+ i = strtol (argv[1], &end, 0);
+
+ if (end != argv[1])
+ {
+ if (!run_test (i))
+ return 1;
+ else
+ return 0;
+ }
+ else
+ {
+ printf ("Usage:\n\n %s <number>\n\n", argv[0]);
+ return -1;
+ }
+ }
+
+ uint32_t seed;
+
+ if (getenv ("PIXMAN_RANDOMIZE_TESTS"))
+ seed = get_random_seed();
+ else
+ seed = 1;
+
+#ifdef USE_OPENMP
+# pragma omp parallel for default(none) shared(result, argv, seed)
+#endif
+ for (i = seed; i <= N_TESTS; ++i)
+ {
+ if (!result && !run_test (i))
+ {
+ printf ("Test 0x%08X failed.\n", i);
+
+ result = i;
+ }
+ }
+
+ return result;
+}
diff --git a/pixman/test/fetch-test.c b/pixman/test/fetch-test.c
index 60bc765f6..4554f9f9b 100644
--- a/pixman/test/fetch-test.c
+++ b/pixman/test/fetch-test.c
@@ -1,196 +1,196 @@
-#include <assert.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include "pixman.h"
-#include <config.h>
-
-#define SIZE 1024
-
-static pixman_indexed_t mono_palette =
-{
- 0, { 0x00000000, 0x00ffffff },
-};
-
-
-typedef struct {
- pixman_format_code_t format;
- int width, height;
- int stride;
- uint32_t src[SIZE];
- uint32_t dst[SIZE];
- pixman_indexed_t *indexed;
-} testcase_t;
-
-static testcase_t testcases[] =
-{
- {
- PIXMAN_a8r8g8b8,
- 2, 2,
- 8,
- { 0x00112233, 0x44556677,
- 0x8899aabb, 0xccddeeff },
- { 0x00112233, 0x44556677,
- 0x8899aabb, 0xccddeeff },
- NULL,
- },
- {
- PIXMAN_g1,
- 8, 2,
- 4,
-#ifdef WORDS_BIGENDIAN
- {
- 0xaa000000,
- 0x55000000
- },
-#else
- {
- 0x00000055,
- 0x000000aa
- },
-#endif
- {
- 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000,
- 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff
- },
- &mono_palette,
- },
-#if 0
- {
- PIXMAN_g8,
- 4, 2,
- 4,
- { 0x01234567,
- 0x89abcdef },
- { 0x00010101, 0x00232323, 0x00454545, 0x00676767,
- 0x00898989, 0x00ababab, 0x00cdcdcd, 0x00efefef, },
- },
-#endif
- /* FIXME: make this work on big endian */
- {
- PIXMAN_yv12,
- 8, 2,
- 8,
-#ifdef WORDS_BIGENDIAN
- {
- 0x00ff00ff, 0x00ff00ff,
- 0xff00ff00, 0xff00ff00,
- 0x80ff8000,
- 0x800080ff
- },
-#else
- {
- 0xff00ff00, 0xff00ff00,
- 0x00ff00ff, 0x00ff00ff,
- 0x0080ff80,
- 0xff800080
- },
-#endif
- {
- 0xff000000, 0xffffffff, 0xffb80000, 0xffffe113,
- 0xff000000, 0xffffffff, 0xff0023ee, 0xff4affff,
- 0xffffffff, 0xff000000, 0xffffe113, 0xffb80000,
- 0xffffffff, 0xff000000, 0xff4affff, 0xff0023ee,
- },
- },
-};
-
-int n_test_cases = sizeof(testcases)/sizeof(testcases[0]);
-
-
-static uint32_t
-reader (const void *src, int size)
-{
- switch (size)
- {
- case 1:
- return *(uint8_t *)src;
- case 2:
- return *(uint16_t *)src;
- case 4:
- return *(uint32_t *)src;
- default:
- assert(0);
- return 0; /* silence MSVC */
- }
-}
-
-
-static void
-writer (void *src, uint32_t value, int size)
-{
- switch (size)
- {
- case 1:
- *(uint8_t *)src = value;
- break;
- case 2:
- *(uint16_t *)src = value;
- break;
- case 4:
- *(uint32_t *)src = value;
- break;
- default:
- assert(0);
- }
-}
-
-
-int
-main (int argc, char **argv)
-{
- uint32_t dst[SIZE];
- pixman_image_t *src_img;
- pixman_image_t *dst_img;
- int i, j, x, y;
- int ret = 0;
-
- for (i = 0; i < n_test_cases; ++i)
- {
- for (j = 0; j < 2; ++j)
- {
- src_img = pixman_image_create_bits (testcases[i].format,
- testcases[i].width,
- testcases[i].height,
- testcases[i].src,
- testcases[i].stride);
- pixman_image_set_indexed(src_img, testcases[i].indexed);
-
- dst_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
- testcases[i].width,
- testcases[i].height,
- dst,
- testcases[i].width*4);
-
- if (j)
- {
- pixman_image_set_accessors (src_img, reader, writer);
- pixman_image_set_accessors (dst_img, reader, writer);
- }
-
- pixman_image_composite (PIXMAN_OP_SRC, src_img, NULL, dst_img,
- 0, 0, 0, 0, 0, 0, testcases[i].width, testcases[i].height);
-
- pixman_image_unref (src_img);
- pixman_image_unref (dst_img);
-
- for (y = 0; y < testcases[i].height; ++y)
- {
- for (x = 0; x < testcases[i].width; ++x)
- {
- int offset = y * testcases[i].width + x;
-
- if (dst[offset] != testcases[i].dst[offset])
- {
- printf ("test %i%c: pixel mismatch at (x=%d,y=%d): %08x expected, %08x obtained\n",
- i + 1, 'a' + j,
- x, y,
- testcases[i].dst[offset], dst[offset]);
- ret = 1;
- }
- }
- }
- }
- }
-
- return ret;
-}
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "pixman.h"
+#include <config.h>
+
+#define SIZE 1024
+
+static pixman_indexed_t mono_palette =
+{
+ 0, { 0x00000000, 0x00ffffff },
+};
+
+
+typedef struct {
+ pixman_format_code_t format;
+ int width, height;
+ int stride;
+ uint32_t src[SIZE];
+ uint32_t dst[SIZE];
+ pixman_indexed_t *indexed;
+} testcase_t;
+
+static testcase_t testcases[] =
+{
+ {
+ PIXMAN_a8r8g8b8,
+ 2, 2,
+ 8,
+ { 0x00112233, 0x44556677,
+ 0x8899aabb, 0xccddeeff },
+ { 0x00112233, 0x44556677,
+ 0x8899aabb, 0xccddeeff },
+ NULL,
+ },
+ {
+ PIXMAN_g1,
+ 8, 2,
+ 4,
+#ifdef WORDS_BIGENDIAN
+ {
+ 0xaa000000,
+ 0x55000000
+ },
+#else
+ {
+ 0x00000055,
+ 0x000000aa
+ },
+#endif
+ {
+ 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000,
+ 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff
+ },
+ &mono_palette,
+ },
+#if 0
+ {
+ PIXMAN_g8,
+ 4, 2,
+ 4,
+ { 0x01234567,
+ 0x89abcdef },
+ { 0x00010101, 0x00232323, 0x00454545, 0x00676767,
+ 0x00898989, 0x00ababab, 0x00cdcdcd, 0x00efefef, },
+ },
+#endif
+ /* FIXME: make this work on big endian */
+ {
+ PIXMAN_yv12,
+ 8, 2,
+ 8,
+#ifdef WORDS_BIGENDIAN
+ {
+ 0x00ff00ff, 0x00ff00ff,
+ 0xff00ff00, 0xff00ff00,
+ 0x80ff8000,
+ 0x800080ff
+ },
+#else
+ {
+ 0xff00ff00, 0xff00ff00,
+ 0x00ff00ff, 0x00ff00ff,
+ 0x0080ff80,
+ 0xff800080
+ },
+#endif
+ {
+ 0xff000000, 0xffffffff, 0xffb80000, 0xffffe113,
+ 0xff000000, 0xffffffff, 0xff0023ee, 0xff4affff,
+ 0xffffffff, 0xff000000, 0xffffe113, 0xffb80000,
+ 0xffffffff, 0xff000000, 0xff4affff, 0xff0023ee,
+ },
+ },
+};
+
+int n_test_cases = sizeof(testcases)/sizeof(testcases[0]);
+
+
+static uint32_t
+reader (const void *src, int size)
+{
+ switch (size)
+ {
+ case 1:
+ return *(uint8_t *)src;
+ case 2:
+ return *(uint16_t *)src;
+ case 4:
+ return *(uint32_t *)src;
+ default:
+ assert(0);
+ return 0; /* silence MSVC */
+ }
+}
+
+
+static void
+writer (void *src, uint32_t value, int size)
+{
+ switch (size)
+ {
+ case 1:
+ *(uint8_t *)src = value;
+ break;
+ case 2:
+ *(uint16_t *)src = value;
+ break;
+ case 4:
+ *(uint32_t *)src = value;
+ break;
+ default:
+ assert(0);
+ }
+}
+
+
+int
+main (int argc, char **argv)
+{
+ uint32_t dst[SIZE];
+ pixman_image_t *src_img;
+ pixman_image_t *dst_img;
+ int i, j, x, y;
+ int ret = 0;
+
+ for (i = 0; i < n_test_cases; ++i)
+ {
+ for (j = 0; j < 2; ++j)
+ {
+ src_img = pixman_image_create_bits (testcases[i].format,
+ testcases[i].width,
+ testcases[i].height,
+ testcases[i].src,
+ testcases[i].stride);
+ pixman_image_set_indexed(src_img, testcases[i].indexed);
+
+ dst_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
+ testcases[i].width,
+ testcases[i].height,
+ dst,
+ testcases[i].width*4);
+
+ if (j)
+ {
+ pixman_image_set_accessors (src_img, reader, writer);
+ pixman_image_set_accessors (dst_img, reader, writer);
+ }
+
+ pixman_image_composite (PIXMAN_OP_SRC, src_img, NULL, dst_img,
+ 0, 0, 0, 0, 0, 0, testcases[i].width, testcases[i].height);
+
+ pixman_image_unref (src_img);
+ pixman_image_unref (dst_img);
+
+ for (y = 0; y < testcases[i].height; ++y)
+ {
+ for (x = 0; x < testcases[i].width; ++x)
+ {
+ int offset = y * testcases[i].width + x;
+
+ if (dst[offset] != testcases[i].dst[offset])
+ {
+ printf ("test %i%c: pixel mismatch at (x=%d,y=%d): %08x expected, %08x obtained\n",
+ i + 1, 'a' + j,
+ x, y,
+ testcases[i].dst[offset], dst[offset]);
+ ret = 1;
+ }
+ }
+ }
+ }
+ }
+
+ return ret;
+}
diff --git a/pixman/test/stress-test.c b/pixman/test/stress-test.c
index d496f93e2..c694bde8c 100644
--- a/pixman/test/stress-test.c
+++ b/pixman/test/stress-test.c
@@ -1,870 +1,870 @@
-#include <stdio.h>
-#include "utils.h"
-#include <sys/types.h>
-
-#if 0
-#define fence_malloc malloc
-#define fence_free free
-#define make_random_bytes malloc
-#endif
-
-static const pixman_format_code_t image_formats[] =
-{
- PIXMAN_a8r8g8b8,
- PIXMAN_x8r8g8b8,
- PIXMAN_r5g6b5,
- PIXMAN_r3g3b2,
- PIXMAN_a8,
- PIXMAN_a8b8g8r8,
- PIXMAN_x8b8g8r8,
- PIXMAN_b8g8r8a8,
- PIXMAN_b8g8r8x8,
- PIXMAN_x14r6g6b6,
- PIXMAN_r8g8b8,
- PIXMAN_b8g8r8,
- PIXMAN_r5g6b5,
- PIXMAN_b5g6r5,
- PIXMAN_x2r10g10b10,
- PIXMAN_a2r10g10b10,
- PIXMAN_x2b10g10r10,
- PIXMAN_a2b10g10r10,
- PIXMAN_a1r5g5b5,
- PIXMAN_x1r5g5b5,
- PIXMAN_a1b5g5r5,
- PIXMAN_x1b5g5r5,
- PIXMAN_a4r4g4b4,
- PIXMAN_x4r4g4b4,
- PIXMAN_a4b4g4r4,
- PIXMAN_x4b4g4r4,
- PIXMAN_a8,
- PIXMAN_r3g3b2,
- PIXMAN_b2g3r3,
- PIXMAN_a2r2g2b2,
- PIXMAN_a2b2g2r2,
- PIXMAN_c8,
- PIXMAN_g8,
- PIXMAN_x4c4,
- PIXMAN_x4g4,
- PIXMAN_c4,
- PIXMAN_g4,
- PIXMAN_g1,
- PIXMAN_x4a4,
- PIXMAN_a4,
- PIXMAN_r1g2b1,
- PIXMAN_b1g2r1,
- PIXMAN_a1r1g1b1,
- PIXMAN_a1b1g1r1,
- PIXMAN_a1
-};
-
-static pixman_filter_t filters[] =
-{
- PIXMAN_FILTER_NEAREST,
- PIXMAN_FILTER_BILINEAR,
- PIXMAN_FILTER_FAST,
- PIXMAN_FILTER_GOOD,
- PIXMAN_FILTER_BEST,
- PIXMAN_FILTER_CONVOLUTION
-};
-
-static int
-get_size (void)
-{
- switch (lcg_rand_n (28))
- {
- case 0:
- return 1;
-
- case 1:
- return 2;
-
- default:
- case 2:
- return lcg_rand_n (200);
-
- case 4:
- return lcg_rand_n (2000) + 1000;
-
- case 5:
- return 65535;
-
- case 6:
- return 65536;
-
- case 7:
- return lcg_rand_N (64000) + 63000;
- }
-}
-
-static void
-destroy (pixman_image_t *image, void *data)
-{
- if (image->type == BITS && image->bits.free_me != image->bits.bits)
- {
- uint32_t *bits;
-
- if (image->bits.bits != (void *)0x01)
- {
- bits = image->bits.bits;
-
- if (image->bits.rowstride < 0)
- bits -= (- image->bits.rowstride * (image->bits.height - 1));
-
- fence_free (bits);
- }
- }
-
- free (data);
-}
-
-static uint32_t
-real_reader (const void *src, int size)
-{
- switch (size)
- {
- case 1:
- return *(uint8_t *)src;
- case 2:
- return *(uint16_t *)src;
- case 4:
- return *(uint32_t *)src;
- default:
- assert (0);
- return 0; /* silence MSVC */
- }
-}
-
-static void
-real_writer (void *src, uint32_t value, int size)
-{
- switch (size)
- {
- case 1:
- *(uint8_t *)src = value;
- break;
-
- case 2:
- *(uint16_t *)src = value;
- break;
-
- case 4:
- *(uint32_t *)src = value;
- break;
-
- default:
- assert (0);
- break;
- }
-}
-
-static uint32_t
-fake_reader (const void *src, int size)
-{
- uint32_t r = lcg_rand_u32 ();
-
- assert (size == 1 || size == 2 || size == 4);
- return r & ((1 << (size * 8)) - 1);
-}
-
-static void
-fake_writer (void *src, uint32_t value, int size)
-{
- assert (size == 1 || size == 2 || size == 4);
-}
-
-static int32_t
-log_rand (void)
-{
- uint32_t mask;
-
- mask = (1 << lcg_rand_n (31)) - 1;
-
- return (lcg_rand () & mask) - (mask >> 1);
-}
-
-static pixman_image_t *
-create_random_bits_image (void)
-{
- pixman_format_code_t format;
- pixman_indexed_t *indexed;
- pixman_image_t *image;
- int width, height, stride;
- uint32_t *bits;
- pixman_read_memory_func_t read_func = NULL;
- pixman_write_memory_func_t write_func = NULL;
- pixman_filter_t filter;
- pixman_fixed_t *coefficients = NULL;
- int n_coefficients = 0;
-
- /* format */
- format = image_formats[lcg_rand_n (ARRAY_LENGTH (image_formats))];
-
- indexed = NULL;
- if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_COLOR)
- {
- indexed = malloc (sizeof (pixman_indexed_t));
-
- initialize_palette (indexed, PIXMAN_FORMAT_BPP (format), TRUE);
- }
- else if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_GRAY)
- {
- indexed = malloc (sizeof (pixman_indexed_t));
-
- initialize_palette (indexed, PIXMAN_FORMAT_BPP (format), FALSE);
- }
- else
- {
- indexed = NULL;
- }
-
- /* size */
- width = get_size ();
- height = get_size ();
-
- if ((uint64_t)width * height > 200000)
- {
- if (lcg_rand_n(2) == 0)
- height = 200000 / width;
- else
- width = 200000 / height;
- }
-
- if (height == 0)
- height = 1;
- if (width == 0)
- width = 1;
-
- /* bits */
- switch (lcg_rand_n (7))
- {
- default:
- case 0:
- stride = width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17);
- stride = (stride + 3) & (~3);
- bits = (uint32_t *)make_random_bytes (height * stride);
- break;
-
- case 1:
- stride = 0;
- bits = NULL;
- break;
-
- case 2: /* Zero-filled */
- stride = width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17);
- stride = (stride + 3) & (~3);
- bits = fence_malloc (height * stride);
- if (!bits)
- return NULL;
- memset (bits, 0, height * stride);
- break;
-
- case 3: /* Filled with 0xFF */
- stride = width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17);
- stride = (stride + 3) & (~3);
- bits = fence_malloc (height * stride);
- if (!bits)
- return NULL;
- memset (bits, 0xff, height * stride);
- break;
-
- case 4: /* bits is a bad pointer, has read/write functions */
- stride = 232;
- bits = (void *)0x01;
- read_func = fake_reader;
- write_func = fake_writer;
- break;
-
- case 5: /* bits is a real pointer, has read/write functions */
- stride = width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17);
- stride = (stride + 3) & (~3);
- bits = fence_malloc (height * stride);
- if (!bits)
- return NULL;
- memset (bits, 0xff, height * stride);
- read_func = real_reader;
- write_func = real_writer;
- break;
-
- case 6: /* bits is a real pointer, stride is negative */
- stride = (width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17));
- stride = (stride + 3) & (~3);
- bits = (uint32_t *)make_random_bytes (height * stride);
- if (!bits)
- return NULL;
- bits += ((height - 1) * stride) / 4;
- stride = - stride;
- break;
- }
-
- /* Filter */
- filter = filters[lcg_rand_n (ARRAY_LENGTH (filters))];
- if (filter == PIXMAN_FILTER_CONVOLUTION)
- {
- int width = lcg_rand_n (17);
- int height = lcg_rand_n (19);
-
- n_coefficients = width * height + 2;
- coefficients = malloc (n_coefficients * sizeof (pixman_fixed_t));
-
- if (coefficients)
- {
- int i;
-
- for (i = 0; i < width * height; ++i)
- coefficients[i + 2] = lcg_rand_u32();
-
- coefficients[0] = width << 16;
- coefficients[1] = height << 16;
- }
- else
- {
- filter = PIXMAN_FILTER_BEST;
- }
- }
-
- /* Finally create the image */
- image = pixman_image_create_bits (format, width, height, bits, stride);
- if (!image)
- return NULL;
-
- pixman_image_set_indexed (image, indexed);
- pixman_image_set_destroy_function (image, destroy, indexed);
- pixman_image_set_accessors (image, read_func, write_func);
- pixman_image_set_filter (image, filter, coefficients, n_coefficients);
-
- return image;
-}
-
-static pixman_repeat_t repeats[] =
-{
- PIXMAN_REPEAT_NONE,
- PIXMAN_REPEAT_NORMAL,
- PIXMAN_REPEAT_REFLECT,
- PIXMAN_REPEAT_PAD
-};
-
-static uint32_t
-absolute (int32_t i)
-{
- return i < 0? -i : i;
-}
-
-static void
-set_general_properties (pixman_image_t *image, pixman_bool_t allow_alpha_map)
-{
- pixman_repeat_t repeat;
-
- /* Set properties that are generic to all images */
-
- /* Repeat */
- repeat = repeats[lcg_rand_n (ARRAY_LENGTH (repeats))];
- pixman_image_set_repeat (image, repeat);
-
- /* Alpha map */
- if (allow_alpha_map && lcg_rand_n (3) == 0)
- {
- pixman_image_t *alpha_map;
- int16_t x, y;
-
- alpha_map = create_random_bits_image ();
-
- if (alpha_map)
- {
- set_general_properties (alpha_map, FALSE);
-
- x = lcg_rand_N (100000) - 65536;
- y = lcg_rand_N (100000) - 65536;
-
- pixman_image_set_alpha_map (image, alpha_map, x, y);
-
- pixman_image_unref (alpha_map);
- }
- }
-
- /* Component alpha */
- pixman_image_set_component_alpha (image, lcg_rand_n (3) == 0);
-
- /* Clip region */
- if (lcg_rand_n (8) != 0)
- {
- pixman_region32_t region;
- int i, n_rects;
-
- pixman_region32_init (&region);
-
- switch (lcg_rand_n (10))
- {
- case 0:
- n_rects = 0;
- break;
-
- case 1: case 2: case 3:
- n_rects = 1;
- break;
-
- case 4: case 5:
- n_rects = 2;
- break;
-
- case 6: case 7:
- n_rects = 3;
-
- default:
- n_rects = lcg_rand_n (100);
- break;
- }
-
- for (i = 0; i < n_rects; ++i)
- {
- uint32_t width, height;
- int x, y;
-
- x = log_rand();
- y = log_rand();
- width = absolute (log_rand ()) + 1;
- height = absolute (log_rand ()) + 1;
-
- pixman_region32_union_rect (
- &region, &region, x, y, width, height);
- }
-
- pixman_image_set_clip_region32 (image, &region);
-
- pixman_region32_fini (&region);
- }
-
- /* Whether source clipping is enabled */
- pixman_image_set_source_clipping (image, !!lcg_rand_n (2));
-
- /* Client clip */
- pixman_image_set_has_client_clip (image, !!lcg_rand_n (2));
-
- /* Transform */
- if (lcg_rand_n (5) < 2)
- {
- pixman_transform_t xform;
- int i, j, k;
- uint32_t tx, ty, sx, sy;
- uint32_t c, s;
-
- memset (&xform, 0, sizeof xform);
- xform.matrix[0][0] = pixman_fixed_1;
- xform.matrix[1][1] = pixman_fixed_1;
- xform.matrix[2][2] = pixman_fixed_1;
-
- for (k = 0; k < 3; ++k)
- {
- switch (lcg_rand_n (4))
- {
- case 0:
- /* rotation */
- c = lcg_rand_N (2 * 65536) - 65536;
- s = lcg_rand_N (2 * 65536) - 65536;
- pixman_transform_rotate (&xform, NULL, c, s);
- break;
-
- case 1:
- /* translation */
- tx = lcg_rand_u32();
- ty = lcg_rand_u32();
- pixman_transform_translate (&xform, NULL, tx, ty);
- break;
-
- case 2:
- /* scale */
- sx = lcg_rand_u32();
- sy = lcg_rand_u32();
- pixman_transform_scale (&xform, NULL, sx, sy);
- break;
-
- case 3:
- if (lcg_rand_n (16) == 0)
- {
- /* random */
- for (i = 0; i < 3; ++i)
- for (j = 0; j < 3; ++j)
- xform.matrix[i][j] = lcg_rand_u32();
- break;
- }
- else if (lcg_rand_n (16) == 0)
- {
- /* zero */
- memset (&xform, 0, sizeof xform);
- }
- break;
- }
- }
-
- pixman_image_set_transform (image, &xform);
- }
-}
-
-static pixman_color_t
-random_color (void)
-{
- pixman_color_t color =
- {
- lcg_rand() & 0xffff,
- lcg_rand() & 0xffff,
- lcg_rand() & 0xffff,
- lcg_rand() & 0xffff,
- };
-
- return color;
-}
-
-
-static pixman_image_t *
-create_random_solid_image (void)
-{
- pixman_color_t color = random_color();
- pixman_image_t *image = pixman_image_create_solid_fill (&color);
-
- return image;
-}
-
-static pixman_gradient_stop_t *
-create_random_stops (int *n_stops)
-{
- pixman_fixed_t step;
- pixman_fixed_t s;
- int i;
- pixman_gradient_stop_t *stops;
-
- *n_stops = lcg_rand_n (50) + 1;
-
- step = pixman_fixed_1 / *n_stops;
-
- stops = malloc (*n_stops * sizeof (pixman_gradient_stop_t));
-
- s = 0;
- for (i = 0; i < (*n_stops) - 1; ++i)
- {
- stops[i].x = s;
- stops[i].color = random_color();
-
- s += step;
- }
-
- stops[*n_stops - 1].x = pixman_fixed_1;
- stops[*n_stops - 1].color = random_color();
-
- return stops;
-}
-
-static pixman_point_fixed_t
-create_random_point (void)
-{
- pixman_point_fixed_t p;
-
- p.x = log_rand ();
- p.y = log_rand ();
-
- return p;
-}
-
-static pixman_image_t *
-create_random_linear_image (void)
-{
- int n_stops;
- pixman_gradient_stop_t *stops;
- pixman_point_fixed_t p1, p2;
- pixman_image_t *result;
-
- stops = create_random_stops (&n_stops);
- if (!stops)
- return NULL;
-
- p1 = create_random_point ();
- p2 = create_random_point ();
-
- result = pixman_image_create_linear_gradient (&p1, &p2, stops, n_stops);
-
- free (stops);
-
- return result;
-}
-
-static pixman_image_t *
-create_random_radial_image (void)
-{
- int n_stops;
- pixman_gradient_stop_t *stops;
- pixman_point_fixed_t inner_c, outer_c;
- pixman_fixed_t inner_r, outer_r;
- pixman_image_t *result;
-
- inner_c = create_random_point();
- outer_c = create_random_point();
- inner_r = lcg_rand();
- outer_r = lcg_rand();
-
- stops = create_random_stops (&n_stops);
-
- if (!stops)
- return NULL;
-
- result = pixman_image_create_radial_gradient (
- &inner_c, &outer_c, inner_r, outer_r, stops, n_stops);
-
- free (stops);
-
- return result;
-}
-
-static pixman_image_t *
-create_random_conical_image (void)
-{
- pixman_gradient_stop_t *stops;
- int n_stops;
- pixman_point_fixed_t c;
- pixman_fixed_t angle;
- pixman_image_t *result;
-
- c = create_random_point();
- angle = lcg_rand();
-
- stops = create_random_stops (&n_stops);
-
- if (!stops)
- return NULL;
-
- result = pixman_image_create_conical_gradient (&c, angle, stops, n_stops);
-
- free (stops);
-
- return result;
-}
-
-static pixman_image_t *
-create_random_image (void)
-{
- pixman_image_t *result;
-
- switch (lcg_rand_n (5))
- {
- default:
- case 0:
- result = create_random_bits_image ();
- break;
-
- case 1:
- result = create_random_solid_image ();
- break;
-
- case 2:
- result = create_random_linear_image ();
- break;
-
- case 3:
- result = create_random_radial_image ();
- break;
-
- case 4:
- result = create_random_conical_image ();
- break;
- }
-
- if (result)
- set_general_properties (result, TRUE);
-
- return result;
-}
-
-static const pixman_op_t op_list[] =
-{
- PIXMAN_OP_SRC,
- PIXMAN_OP_OVER,
- PIXMAN_OP_ADD,
- PIXMAN_OP_CLEAR,
- PIXMAN_OP_SRC,
- PIXMAN_OP_DST,
- PIXMAN_OP_OVER,
- PIXMAN_OP_OVER_REVERSE,
- PIXMAN_OP_IN,
- PIXMAN_OP_IN_REVERSE,
- PIXMAN_OP_OUT,
- PIXMAN_OP_OUT_REVERSE,
- PIXMAN_OP_ATOP,
- PIXMAN_OP_ATOP_REVERSE,
- PIXMAN_OP_XOR,
- PIXMAN_OP_ADD,
- PIXMAN_OP_SATURATE,
- PIXMAN_OP_DISJOINT_CLEAR,
- PIXMAN_OP_DISJOINT_SRC,
- PIXMAN_OP_DISJOINT_DST,
- PIXMAN_OP_DISJOINT_OVER,
- PIXMAN_OP_DISJOINT_OVER_REVERSE,
- PIXMAN_OP_DISJOINT_IN,
- PIXMAN_OP_DISJOINT_IN_REVERSE,
- PIXMAN_OP_DISJOINT_OUT,
- PIXMAN_OP_DISJOINT_OUT_REVERSE,
- PIXMAN_OP_DISJOINT_ATOP,
- PIXMAN_OP_DISJOINT_ATOP_REVERSE,
- PIXMAN_OP_DISJOINT_XOR,
- PIXMAN_OP_CONJOINT_CLEAR,
- PIXMAN_OP_CONJOINT_SRC,
- PIXMAN_OP_CONJOINT_DST,
- PIXMAN_OP_CONJOINT_OVER,
- PIXMAN_OP_CONJOINT_OVER_REVERSE,
- PIXMAN_OP_CONJOINT_IN,
- PIXMAN_OP_CONJOINT_IN_REVERSE,
- PIXMAN_OP_CONJOINT_OUT,
- PIXMAN_OP_CONJOINT_OUT_REVERSE,
- PIXMAN_OP_CONJOINT_ATOP,
- PIXMAN_OP_CONJOINT_ATOP_REVERSE,
- PIXMAN_OP_CONJOINT_XOR,
- PIXMAN_OP_MULTIPLY,
- PIXMAN_OP_SCREEN,
- PIXMAN_OP_OVERLAY,
- PIXMAN_OP_DARKEN,
- PIXMAN_OP_LIGHTEN,
- PIXMAN_OP_COLOR_DODGE,
- PIXMAN_OP_COLOR_BURN,
- PIXMAN_OP_HARD_LIGHT,
- PIXMAN_OP_DIFFERENCE,
- PIXMAN_OP_EXCLUSION,
- PIXMAN_OP_SOFT_LIGHT,
- PIXMAN_OP_HSL_HUE,
- PIXMAN_OP_HSL_SATURATION,
- PIXMAN_OP_HSL_COLOR,
- PIXMAN_OP_HSL_LUMINOSITY,
-};
-
-static void
-run_test (uint32_t seed, pixman_bool_t verbose, uint32_t mod)
-{
- pixman_image_t *source, *mask, *dest;
- pixman_op_t op;
-
- if (verbose)
- {
- if (mod == 0 || (seed % mod) == 0)
- printf ("Seed 0x%08x\n", seed);
- }
-
- lcg_srand (seed);
-
- source = create_random_image ();
- mask = create_random_image ();
- dest = create_random_bits_image ();
-
- if (source && mask && dest)
- {
- set_general_properties (dest, TRUE);
-
- op = op_list [lcg_rand_n (ARRAY_LENGTH (op_list))];
-
- pixman_image_composite32 (op,
- source, mask, dest,
- log_rand(), log_rand(),
- log_rand(), log_rand(),
- log_rand(), log_rand(),
- absolute (log_rand()),
- absolute (log_rand()));
- }
- if (source)
- pixman_image_unref (source);
- if (mask)
- pixman_image_unref (mask);
- if (dest)
- pixman_image_unref (dest);
-}
-
-static pixman_bool_t
-get_int (char *s, uint32_t *i)
-{
- char *end;
- int p;
-
- p = strtol (s, &end, 0);
-
- if (end != s && *end == 0)
- {
- *i = p;
- return TRUE;
- }
-
- return FALSE;
-}
-
-int
-main (int argc, char **argv)
-{
- int verbose = FALSE;
- uint32_t seed = 1;
- uint32_t n_tests = 0xffffffff;
- uint32_t mod = 0;
- pixman_bool_t use_threads = TRUE;
- uint32_t i;
-
- pixman_disable_out_of_bounds_workaround ();
-
- enable_fp_exceptions();
-
- if (getenv ("VERBOSE") != NULL)
- verbose = TRUE;
-
- for (i = 1; i < argc; ++i)
- {
- if (strcmp (argv[i], "-v") == 0)
- {
- verbose = TRUE;
-
- if (i + 1 < argc)
- {
- get_int (argv[i + 1], &mod);
- i++;
- }
- }
- else if (strcmp (argv[i], "-s") == 0 && i + 1 < argc)
- {
- get_int (argv[i + 1], &seed);
- use_threads = FALSE;
- i++;
- }
- else if (strcmp (argv[i], "-n") == 0 && i + 1 < argc)
- {
- get_int (argv[i + 1], &n_tests);
- i++;
- }
- else
- {
- if (strcmp (argv[i], "-h") != 0)
- printf ("Unknown option '%s'\n\n", argv[i]);
-
- printf ("Options:\n\n"
- "-n <number> Number of tests to run\n"
- "-s <seed> Seed of first test (ignored if PIXMAN_RANDOMIZE_TESTS is set)\n"
- "-v Print out seeds\n"
- "-v <n> Print out every n'th seed\n\n");
-
- exit (-1);
- }
- }
-
- if (n_tests == 0xffffffff)
- n_tests = 8000;
-
- if (getenv ("PIXMAN_RANDOMIZE_TESTS"))
- {
- seed = get_random_seed();
- printf ("First seed: 0x%08x\n", seed);
- }
-
- if (use_threads)
- {
-#ifdef USE_OPENMP
-# pragma omp parallel for default(none) shared(verbose, n_tests, mod, seed)
-#endif
- for (i = seed; i < seed + n_tests; ++i)
- run_test (i, verbose, mod);
- }
- else
- {
- for (i = seed; i < seed + n_tests; ++i)
- run_test (i, verbose, mod);
- }
-
- return 0;
-}
+#include <stdio.h>
+#include "utils.h"
+#include <sys/types.h>
+
+#if 0
+#define fence_malloc malloc
+#define fence_free free
+#define make_random_bytes malloc
+#endif
+
+static const pixman_format_code_t image_formats[] =
+{
+ PIXMAN_a8r8g8b8,
+ PIXMAN_x8r8g8b8,
+ PIXMAN_r5g6b5,
+ PIXMAN_r3g3b2,
+ PIXMAN_a8,
+ PIXMAN_a8b8g8r8,
+ PIXMAN_x8b8g8r8,
+ PIXMAN_b8g8r8a8,
+ PIXMAN_b8g8r8x8,
+ PIXMAN_x14r6g6b6,
+ PIXMAN_r8g8b8,
+ PIXMAN_b8g8r8,
+ PIXMAN_r5g6b5,
+ PIXMAN_b5g6r5,
+ PIXMAN_x2r10g10b10,
+ PIXMAN_a2r10g10b10,
+ PIXMAN_x2b10g10r10,
+ PIXMAN_a2b10g10r10,
+ PIXMAN_a1r5g5b5,
+ PIXMAN_x1r5g5b5,
+ PIXMAN_a1b5g5r5,
+ PIXMAN_x1b5g5r5,
+ PIXMAN_a4r4g4b4,
+ PIXMAN_x4r4g4b4,
+ PIXMAN_a4b4g4r4,
+ PIXMAN_x4b4g4r4,
+ PIXMAN_a8,
+ PIXMAN_r3g3b2,
+ PIXMAN_b2g3r3,
+ PIXMAN_a2r2g2b2,
+ PIXMAN_a2b2g2r2,
+ PIXMAN_c8,
+ PIXMAN_g8,
+ PIXMAN_x4c4,
+ PIXMAN_x4g4,
+ PIXMAN_c4,
+ PIXMAN_g4,
+ PIXMAN_g1,
+ PIXMAN_x4a4,
+ PIXMAN_a4,
+ PIXMAN_r1g2b1,
+ PIXMAN_b1g2r1,
+ PIXMAN_a1r1g1b1,
+ PIXMAN_a1b1g1r1,
+ PIXMAN_a1
+};
+
+static pixman_filter_t filters[] =
+{
+ PIXMAN_FILTER_NEAREST,
+ PIXMAN_FILTER_BILINEAR,
+ PIXMAN_FILTER_FAST,
+ PIXMAN_FILTER_GOOD,
+ PIXMAN_FILTER_BEST,
+ PIXMAN_FILTER_CONVOLUTION
+};
+
+static int
+get_size (void)
+{
+ switch (lcg_rand_n (28))
+ {
+ case 0:
+ return 1;
+
+ case 1:
+ return 2;
+
+ default:
+ case 2:
+ return lcg_rand_n (200);
+
+ case 4:
+ return lcg_rand_n (2000) + 1000;
+
+ case 5:
+ return 65535;
+
+ case 6:
+ return 65536;
+
+ case 7:
+ return lcg_rand_N (64000) + 63000;
+ }
+}
+
+static void
+destroy (pixman_image_t *image, void *data)
+{
+ if (image->type == BITS && image->bits.free_me != image->bits.bits)
+ {
+ uint32_t *bits;
+
+ if (image->bits.bits != (void *)0x01)
+ {
+ bits = image->bits.bits;
+
+ if (image->bits.rowstride < 0)
+ bits -= (- image->bits.rowstride * (image->bits.height - 1));
+
+ fence_free (bits);
+ }
+ }
+
+ free (data);
+}
+
+static uint32_t
+real_reader (const void *src, int size)
+{
+ switch (size)
+ {
+ case 1:
+ return *(uint8_t *)src;
+ case 2:
+ return *(uint16_t *)src;
+ case 4:
+ return *(uint32_t *)src;
+ default:
+ assert (0);
+ return 0; /* silence MSVC */
+ }
+}
+
+static void
+real_writer (void *src, uint32_t value, int size)
+{
+ switch (size)
+ {
+ case 1:
+ *(uint8_t *)src = value;
+ break;
+
+ case 2:
+ *(uint16_t *)src = value;
+ break;
+
+ case 4:
+ *(uint32_t *)src = value;
+ break;
+
+ default:
+ assert (0);
+ break;
+ }
+}
+
+static uint32_t
+fake_reader (const void *src, int size)
+{
+ uint32_t r = lcg_rand_u32 ();
+
+ assert (size == 1 || size == 2 || size == 4);
+ return r & ((1 << (size * 8)) - 1);
+}
+
+static void
+fake_writer (void *src, uint32_t value, int size)
+{
+ assert (size == 1 || size == 2 || size == 4);
+}
+
+static int32_t
+log_rand (void)
+{
+ uint32_t mask;
+
+ mask = (1 << lcg_rand_n (31)) - 1;
+
+ return (lcg_rand () & mask) - (mask >> 1);
+}
+
+static pixman_image_t *
+create_random_bits_image (void)
+{
+ pixman_format_code_t format;
+ pixman_indexed_t *indexed;
+ pixman_image_t *image;
+ int width, height, stride;
+ uint32_t *bits;
+ pixman_read_memory_func_t read_func = NULL;
+ pixman_write_memory_func_t write_func = NULL;
+ pixman_filter_t filter;
+ pixman_fixed_t *coefficients = NULL;
+ int n_coefficients = 0;
+
+ /* format */
+ format = image_formats[lcg_rand_n (ARRAY_LENGTH (image_formats))];
+
+ indexed = NULL;
+ if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_COLOR)
+ {
+ indexed = malloc (sizeof (pixman_indexed_t));
+
+ initialize_palette (indexed, PIXMAN_FORMAT_BPP (format), TRUE);
+ }
+ else if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_GRAY)
+ {
+ indexed = malloc (sizeof (pixman_indexed_t));
+
+ initialize_palette (indexed, PIXMAN_FORMAT_BPP (format), FALSE);
+ }
+ else
+ {
+ indexed = NULL;
+ }
+
+ /* size */
+ width = get_size ();
+ height = get_size ();
+
+ if ((uint64_t)width * height > 200000)
+ {
+ if (lcg_rand_n(2) == 0)
+ height = 200000 / width;
+ else
+ width = 200000 / height;
+ }
+
+ if (height == 0)
+ height = 1;
+ if (width == 0)
+ width = 1;
+
+ /* bits */
+ switch (lcg_rand_n (7))
+ {
+ default:
+ case 0:
+ stride = width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17);
+ stride = (stride + 3) & (~3);
+ bits = (uint32_t *)make_random_bytes (height * stride);
+ break;
+
+ case 1:
+ stride = 0;
+ bits = NULL;
+ break;
+
+ case 2: /* Zero-filled */
+ stride = width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17);
+ stride = (stride + 3) & (~3);
+ bits = fence_malloc (height * stride);
+ if (!bits)
+ return NULL;
+ memset (bits, 0, height * stride);
+ break;
+
+ case 3: /* Filled with 0xFF */
+ stride = width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17);
+ stride = (stride + 3) & (~3);
+ bits = fence_malloc (height * stride);
+ if (!bits)
+ return NULL;
+ memset (bits, 0xff, height * stride);
+ break;
+
+ case 4: /* bits is a bad pointer, has read/write functions */
+ stride = 232;
+ bits = (void *)0x01;
+ read_func = fake_reader;
+ write_func = fake_writer;
+ break;
+
+ case 5: /* bits is a real pointer, has read/write functions */
+ stride = width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17);
+ stride = (stride + 3) & (~3);
+ bits = fence_malloc (height * stride);
+ if (!bits)
+ return NULL;
+ memset (bits, 0xff, height * stride);
+ read_func = real_reader;
+ write_func = real_writer;
+ break;
+
+ case 6: /* bits is a real pointer, stride is negative */
+ stride = (width * PIXMAN_FORMAT_BPP (format) + lcg_rand_n (17));
+ stride = (stride + 3) & (~3);
+ bits = (uint32_t *)make_random_bytes (height * stride);
+ if (!bits)
+ return NULL;
+ bits += ((height - 1) * stride) / 4;
+ stride = - stride;
+ break;
+ }
+
+ /* Filter */
+ filter = filters[lcg_rand_n (ARRAY_LENGTH (filters))];
+ if (filter == PIXMAN_FILTER_CONVOLUTION)
+ {
+ int width = lcg_rand_n (17);
+ int height = lcg_rand_n (19);
+
+ n_coefficients = width * height + 2;
+ coefficients = malloc (n_coefficients * sizeof (pixman_fixed_t));
+
+ if (coefficients)
+ {
+ int i;
+
+ for (i = 0; i < width * height; ++i)
+ coefficients[i + 2] = lcg_rand_u32();
+
+ coefficients[0] = width << 16;
+ coefficients[1] = height << 16;
+ }
+ else
+ {
+ filter = PIXMAN_FILTER_BEST;
+ }
+ }
+
+ /* Finally create the image */
+ image = pixman_image_create_bits (format, width, height, bits, stride);
+ if (!image)
+ return NULL;
+
+ pixman_image_set_indexed (image, indexed);
+ pixman_image_set_destroy_function (image, destroy, indexed);
+ pixman_image_set_accessors (image, read_func, write_func);
+ pixman_image_set_filter (image, filter, coefficients, n_coefficients);
+
+ return image;
+}
+
+static pixman_repeat_t repeats[] =
+{
+ PIXMAN_REPEAT_NONE,
+ PIXMAN_REPEAT_NORMAL,
+ PIXMAN_REPEAT_REFLECT,
+ PIXMAN_REPEAT_PAD
+};
+
+static uint32_t
+absolute (int32_t i)
+{
+ return i < 0? -i : i;
+}
+
+static void
+set_general_properties (pixman_image_t *image, pixman_bool_t allow_alpha_map)
+{
+ pixman_repeat_t repeat;
+
+ /* Set properties that are generic to all images */
+
+ /* Repeat */
+ repeat = repeats[lcg_rand_n (ARRAY_LENGTH (repeats))];
+ pixman_image_set_repeat (image, repeat);
+
+ /* Alpha map */
+ if (allow_alpha_map && lcg_rand_n (3) == 0)
+ {
+ pixman_image_t *alpha_map;
+ int16_t x, y;
+
+ alpha_map = create_random_bits_image ();
+
+ if (alpha_map)
+ {
+ set_general_properties (alpha_map, FALSE);
+
+ x = lcg_rand_N (100000) - 65536;
+ y = lcg_rand_N (100000) - 65536;
+
+ pixman_image_set_alpha_map (image, alpha_map, x, y);
+
+ pixman_image_unref (alpha_map);
+ }
+ }
+
+ /* Component alpha */
+ pixman_image_set_component_alpha (image, lcg_rand_n (3) == 0);
+
+ /* Clip region */
+ if (lcg_rand_n (8) != 0)
+ {
+ pixman_region32_t region;
+ int i, n_rects;
+
+ pixman_region32_init (&region);
+
+ switch (lcg_rand_n (10))
+ {
+ case 0:
+ n_rects = 0;
+ break;
+
+ case 1: case 2: case 3:
+ n_rects = 1;
+ break;
+
+ case 4: case 5:
+ n_rects = 2;
+ break;
+
+ case 6: case 7:
+ n_rects = 3;
+
+ default:
+ n_rects = lcg_rand_n (100);
+ break;
+ }
+
+ for (i = 0; i < n_rects; ++i)
+ {
+ uint32_t width, height;
+ int x, y;
+
+ x = log_rand();
+ y = log_rand();
+ width = absolute (log_rand ()) + 1;
+ height = absolute (log_rand ()) + 1;
+
+ pixman_region32_union_rect (
+ &region, &region, x, y, width, height);
+ }
+
+ pixman_image_set_clip_region32 (image, &region);
+
+ pixman_region32_fini (&region);
+ }
+
+ /* Whether source clipping is enabled */
+ pixman_image_set_source_clipping (image, !!lcg_rand_n (2));
+
+ /* Client clip */
+ pixman_image_set_has_client_clip (image, !!lcg_rand_n (2));
+
+ /* Transform */
+ if (lcg_rand_n (5) < 2)
+ {
+ pixman_transform_t xform;
+ int i, j, k;
+ uint32_t tx, ty, sx, sy;
+ uint32_t c, s;
+
+ memset (&xform, 0, sizeof xform);
+ xform.matrix[0][0] = pixman_fixed_1;
+ xform.matrix[1][1] = pixman_fixed_1;
+ xform.matrix[2][2] = pixman_fixed_1;
+
+ for (k = 0; k < 3; ++k)
+ {
+ switch (lcg_rand_n (4))
+ {
+ case 0:
+ /* rotation */
+ c = lcg_rand_N (2 * 65536) - 65536;
+ s = lcg_rand_N (2 * 65536) - 65536;
+ pixman_transform_rotate (&xform, NULL, c, s);
+ break;
+
+ case 1:
+ /* translation */
+ tx = lcg_rand_u32();
+ ty = lcg_rand_u32();
+ pixman_transform_translate (&xform, NULL, tx, ty);
+ break;
+
+ case 2:
+ /* scale */
+ sx = lcg_rand_u32();
+ sy = lcg_rand_u32();
+ pixman_transform_scale (&xform, NULL, sx, sy);
+ break;
+
+ case 3:
+ if (lcg_rand_n (16) == 0)
+ {
+ /* random */
+ for (i = 0; i < 3; ++i)
+ for (j = 0; j < 3; ++j)
+ xform.matrix[i][j] = lcg_rand_u32();
+ break;
+ }
+ else if (lcg_rand_n (16) == 0)
+ {
+ /* zero */
+ memset (&xform, 0, sizeof xform);
+ }
+ break;
+ }
+ }
+
+ pixman_image_set_transform (image, &xform);
+ }
+}
+
+static pixman_color_t
+random_color (void)
+{
+ pixman_color_t color =
+ {
+ lcg_rand() & 0xffff,
+ lcg_rand() & 0xffff,
+ lcg_rand() & 0xffff,
+ lcg_rand() & 0xffff,
+ };
+
+ return color;
+}
+
+
+static pixman_image_t *
+create_random_solid_image (void)
+{
+ pixman_color_t color = random_color();
+ pixman_image_t *image = pixman_image_create_solid_fill (&color);
+
+ return image;
+}
+
+static pixman_gradient_stop_t *
+create_random_stops (int *n_stops)
+{
+ pixman_fixed_t step;
+ pixman_fixed_t s;
+ int i;
+ pixman_gradient_stop_t *stops;
+
+ *n_stops = lcg_rand_n (50) + 1;
+
+ step = pixman_fixed_1 / *n_stops;
+
+ stops = malloc (*n_stops * sizeof (pixman_gradient_stop_t));
+
+ s = 0;
+ for (i = 0; i < (*n_stops) - 1; ++i)
+ {
+ stops[i].x = s;
+ stops[i].color = random_color();
+
+ s += step;
+ }
+
+ stops[*n_stops - 1].x = pixman_fixed_1;
+ stops[*n_stops - 1].color = random_color();
+
+ return stops;
+}
+
+static pixman_point_fixed_t
+create_random_point (void)
+{
+ pixman_point_fixed_t p;
+
+ p.x = log_rand ();
+ p.y = log_rand ();
+
+ return p;
+}
+
+static pixman_image_t *
+create_random_linear_image (void)
+{
+ int n_stops;
+ pixman_gradient_stop_t *stops;
+ pixman_point_fixed_t p1, p2;
+ pixman_image_t *result;
+
+ stops = create_random_stops (&n_stops);
+ if (!stops)
+ return NULL;
+
+ p1 = create_random_point ();
+ p2 = create_random_point ();
+
+ result = pixman_image_create_linear_gradient (&p1, &p2, stops, n_stops);
+
+ free (stops);
+
+ return result;
+}
+
+static pixman_image_t *
+create_random_radial_image (void)
+{
+ int n_stops;
+ pixman_gradient_stop_t *stops;
+ pixman_point_fixed_t inner_c, outer_c;
+ pixman_fixed_t inner_r, outer_r;
+ pixman_image_t *result;
+
+ inner_c = create_random_point();
+ outer_c = create_random_point();
+ inner_r = lcg_rand();
+ outer_r = lcg_rand();
+
+ stops = create_random_stops (&n_stops);
+
+ if (!stops)
+ return NULL;
+
+ result = pixman_image_create_radial_gradient (
+ &inner_c, &outer_c, inner_r, outer_r, stops, n_stops);
+
+ free (stops);
+
+ return result;
+}
+
+static pixman_image_t *
+create_random_conical_image (void)
+{
+ pixman_gradient_stop_t *stops;
+ int n_stops;
+ pixman_point_fixed_t c;
+ pixman_fixed_t angle;
+ pixman_image_t *result;
+
+ c = create_random_point();
+ angle = lcg_rand();
+
+ stops = create_random_stops (&n_stops);
+
+ if (!stops)
+ return NULL;
+
+ result = pixman_image_create_conical_gradient (&c, angle, stops, n_stops);
+
+ free (stops);
+
+ return result;
+}
+
+static pixman_image_t *
+create_random_image (void)
+{
+ pixman_image_t *result;
+
+ switch (lcg_rand_n (5))
+ {
+ default:
+ case 0:
+ result = create_random_bits_image ();
+ break;
+
+ case 1:
+ result = create_random_solid_image ();
+ break;
+
+ case 2:
+ result = create_random_linear_image ();
+ break;
+
+ case 3:
+ result = create_random_radial_image ();
+ break;
+
+ case 4:
+ result = create_random_conical_image ();
+ break;
+ }
+
+ if (result)
+ set_general_properties (result, TRUE);
+
+ return result;
+}
+
+static const pixman_op_t op_list[] =
+{
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_CLEAR,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_DST,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_OP_IN,
+ PIXMAN_OP_IN_REVERSE,
+ PIXMAN_OP_OUT,
+ PIXMAN_OP_OUT_REVERSE,
+ PIXMAN_OP_ATOP,
+ PIXMAN_OP_ATOP_REVERSE,
+ PIXMAN_OP_XOR,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_SATURATE,
+ PIXMAN_OP_DISJOINT_CLEAR,
+ PIXMAN_OP_DISJOINT_SRC,
+ PIXMAN_OP_DISJOINT_DST,
+ PIXMAN_OP_DISJOINT_OVER,
+ PIXMAN_OP_DISJOINT_OVER_REVERSE,
+ PIXMAN_OP_DISJOINT_IN,
+ PIXMAN_OP_DISJOINT_IN_REVERSE,
+ PIXMAN_OP_DISJOINT_OUT,
+ PIXMAN_OP_DISJOINT_OUT_REVERSE,
+ PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_OP_CONJOINT_CLEAR,
+ PIXMAN_OP_CONJOINT_SRC,
+ PIXMAN_OP_CONJOINT_DST,
+ PIXMAN_OP_CONJOINT_OVER,
+ PIXMAN_OP_CONJOINT_OVER_REVERSE,
+ PIXMAN_OP_CONJOINT_IN,
+ PIXMAN_OP_CONJOINT_IN_REVERSE,
+ PIXMAN_OP_CONJOINT_OUT,
+ PIXMAN_OP_CONJOINT_OUT_REVERSE,
+ PIXMAN_OP_CONJOINT_ATOP,
+ PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_OP_CONJOINT_XOR,
+ PIXMAN_OP_MULTIPLY,
+ PIXMAN_OP_SCREEN,
+ PIXMAN_OP_OVERLAY,
+ PIXMAN_OP_DARKEN,
+ PIXMAN_OP_LIGHTEN,
+ PIXMAN_OP_COLOR_DODGE,
+ PIXMAN_OP_COLOR_BURN,
+ PIXMAN_OP_HARD_LIGHT,
+ PIXMAN_OP_DIFFERENCE,
+ PIXMAN_OP_EXCLUSION,
+ PIXMAN_OP_SOFT_LIGHT,
+ PIXMAN_OP_HSL_HUE,
+ PIXMAN_OP_HSL_SATURATION,
+ PIXMAN_OP_HSL_COLOR,
+ PIXMAN_OP_HSL_LUMINOSITY,
+};
+
+static void
+run_test (uint32_t seed, pixman_bool_t verbose, uint32_t mod)
+{
+ pixman_image_t *source, *mask, *dest;
+ pixman_op_t op;
+
+ if (verbose)
+ {
+ if (mod == 0 || (seed % mod) == 0)
+ printf ("Seed 0x%08x\n", seed);
+ }
+
+ lcg_srand (seed);
+
+ source = create_random_image ();
+ mask = create_random_image ();
+ dest = create_random_bits_image ();
+
+ if (source && mask && dest)
+ {
+ set_general_properties (dest, TRUE);
+
+ op = op_list [lcg_rand_n (ARRAY_LENGTH (op_list))];
+
+ pixman_image_composite32 (op,
+ source, mask, dest,
+ log_rand(), log_rand(),
+ log_rand(), log_rand(),
+ log_rand(), log_rand(),
+ absolute (log_rand()),
+ absolute (log_rand()));
+ }
+ if (source)
+ pixman_image_unref (source);
+ if (mask)
+ pixman_image_unref (mask);
+ if (dest)
+ pixman_image_unref (dest);
+}
+
+static pixman_bool_t
+get_int (char *s, uint32_t *i)
+{
+ char *end;
+ int p;
+
+ p = strtol (s, &end, 0);
+
+ if (end != s && *end == 0)
+ {
+ *i = p;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+int
+main (int argc, char **argv)
+{
+ int verbose = FALSE;
+ uint32_t seed = 1;
+ uint32_t n_tests = 0xffffffff;
+ uint32_t mod = 0;
+ pixman_bool_t use_threads = TRUE;
+ uint32_t i;
+
+ pixman_disable_out_of_bounds_workaround ();
+
+ enable_fp_exceptions();
+
+ if (getenv ("VERBOSE") != NULL)
+ verbose = TRUE;
+
+ for (i = 1; i < argc; ++i)
+ {
+ if (strcmp (argv[i], "-v") == 0)
+ {
+ verbose = TRUE;
+
+ if (i + 1 < argc)
+ {
+ get_int (argv[i + 1], &mod);
+ i++;
+ }
+ }
+ else if (strcmp (argv[i], "-s") == 0 && i + 1 < argc)
+ {
+ get_int (argv[i + 1], &seed);
+ use_threads = FALSE;
+ i++;
+ }
+ else if (strcmp (argv[i], "-n") == 0 && i + 1 < argc)
+ {
+ get_int (argv[i + 1], &n_tests);
+ i++;
+ }
+ else
+ {
+ if (strcmp (argv[i], "-h") != 0)
+ printf ("Unknown option '%s'\n\n", argv[i]);
+
+ printf ("Options:\n\n"
+ "-n <number> Number of tests to run\n"
+ "-s <seed> Seed of first test (ignored if PIXMAN_RANDOMIZE_TESTS is set)\n"
+ "-v Print out seeds\n"
+ "-v <n> Print out every n'th seed\n\n");
+
+ exit (-1);
+ }
+ }
+
+ if (n_tests == 0xffffffff)
+ n_tests = 8000;
+
+ if (getenv ("PIXMAN_RANDOMIZE_TESTS"))
+ {
+ seed = get_random_seed();
+ printf ("First seed: 0x%08x\n", seed);
+ }
+
+ if (use_threads)
+ {
+#ifdef USE_OPENMP
+# pragma omp parallel for default(none) shared(verbose, n_tests, mod, seed)
+#endif
+ for (i = seed; i < seed + n_tests; ++i)
+ run_test (i, verbose, mod);
+ }
+ else
+ {
+ for (i = seed; i < seed + n_tests; ++i)
+ run_test (i, verbose, mod);
+ }
+
+ return 0;
+}
diff --git a/pixman/test/trap-crasher.c b/pixman/test/trap-crasher.c
index 7485e62fd..96f3b0bab 100644
--- a/pixman/test/trap-crasher.c
+++ b/pixman/test/trap-crasher.c
@@ -1,27 +1,27 @@
-#include <stdlib.h>
-#include <pixman.h>
-
-int
-main()
-{
- pixman_image_t *dst;
- pixman_trapezoid_t traps[1] = {
- {
- 2147483646,
- 2147483647,
- {
- { 0, 0 },
- { 0, 2147483647 }
- },
- {
- { 65536, 0 },
- { 0, 2147483647 }
- }
- },
- };
-
- dst = pixman_image_create_bits (PIXMAN_a8, 1, 1, NULL, -1);
-
- pixman_add_trapezoids (dst, 0, 0, sizeof (traps)/sizeof (traps[0]), traps);
- return (0);
-}
+#include <stdlib.h>
+#include <pixman.h>
+
+int
+main()
+{
+ pixman_image_t *dst;
+ pixman_trapezoid_t traps[1] = {
+ {
+ 2147483646,
+ 2147483647,
+ {
+ { 0, 0 },
+ { 0, 2147483647 }
+ },
+ {
+ { 65536, 0 },
+ { 0, 2147483647 }
+ }
+ },
+ };
+
+ dst = pixman_image_create_bits (PIXMAN_a8, 1, 1, NULL, -1);
+
+ pixman_add_trapezoids (dst, 0, 0, sizeof (traps)/sizeof (traps[0]), traps);
+ return (0);
+}
diff --git a/pixman/test/utils.c b/pixman/test/utils.c
index 56701c4bb..2f1565840 100644
--- a/pixman/test/utils.c
+++ b/pixman/test/utils.c
@@ -1,585 +1,585 @@
-#define _GNU_SOURCE
-
-#include "utils.h"
-#include <signal.h>
-
-#ifdef HAVE_GETTIMEOFDAY
-#include <sys/time.h>
-#else
-#include <time.h>
-#endif
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-
-#ifdef HAVE_FENV_H
-#include <fenv.h>
-#endif
-
-/* Random number seed
- */
-
-uint32_t lcg_seed;
-
-/*----------------------------------------------------------------------------*\
- * CRC-32 version 2.0.0 by Craig Bruce, 2006-04-29.
- *
- * This program generates the CRC-32 values for the files named in the
- * command-line arguments. These are the same CRC-32 values used by GZIP,
- * PKZIP, and ZMODEM. The Crc32_ComputeBuf () can also be detached and
- * used independently.
- *
- * THIS PROGRAM IS PUBLIC-DOMAIN SOFTWARE.
- *
- * Based on the byte-oriented implementation "File Verification Using CRC"
- * by Mark R. Nelson in Dr. Dobb's Journal, May 1992, pp. 64-67.
- *
- * v1.0.0: original release.
- * v1.0.1: fixed printf formats.
- * v1.0.2: fixed something else.
- * v1.0.3: replaced CRC constant table by generator function.
- * v1.0.4: reformatted code, made ANSI C. 1994-12-05.
- * v2.0.0: rewrote to use memory buffer & static table, 2006-04-29.
-\*----------------------------------------------------------------------------*/
-
-/*----------------------------------------------------------------------------*\
- * NAME:
- * Crc32_ComputeBuf () - computes the CRC-32 value of a memory buffer
- * DESCRIPTION:
- * Computes or accumulates the CRC-32 value for a memory buffer.
- * The 'inCrc32' gives a previously accumulated CRC-32 value to allow
- * a CRC to be generated for multiple sequential buffer-fuls of data.
- * The 'inCrc32' for the first buffer must be zero.
- * ARGUMENTS:
- * inCrc32 - accumulated CRC-32 value, must be 0 on first call
- * buf - buffer to compute CRC-32 value for
- * bufLen - number of bytes in buffer
- * RETURNS:
- * crc32 - computed CRC-32 value
- * ERRORS:
- * (no errors are possible)
-\*----------------------------------------------------------------------------*/
-
-uint32_t
-compute_crc32 (uint32_t in_crc32,
- const void *buf,
- size_t buf_len)
-{
- static const uint32_t crc_table[256] = {
- 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F,
- 0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
- 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2,
- 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
- 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9,
- 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
- 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C,
- 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
- 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423,
- 0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
- 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106,
- 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
- 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D,
- 0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
- 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
- 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
- 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7,
- 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
- 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA,
- 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
- 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
- 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
- 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84,
- 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
- 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB,
- 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
- 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E,
- 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
- 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55,
- 0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
- 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28,
- 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
- 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F,
- 0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
- 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
- 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
- 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69,
- 0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
- 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC,
- 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
- 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693,
- 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
- 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
- };
-
- uint32_t crc32;
- unsigned char * byte_buf;
- size_t i;
-
- /* accumulate crc32 for buffer */
- crc32 = in_crc32 ^ 0xFFFFFFFF;
- byte_buf = (unsigned char*) buf;
-
- for (i = 0; i < buf_len; i++)
- crc32 = (crc32 >> 8) ^ crc_table[(crc32 ^ byte_buf[i]) & 0xFF];
-
- return (crc32 ^ 0xFFFFFFFF);
-}
-
-/* perform endian conversion of pixel data
- */
-void
-image_endian_swap (pixman_image_t *img)
-{
- int stride = pixman_image_get_stride (img);
- uint32_t *data = pixman_image_get_data (img);
- int height = pixman_image_get_height (img);
- int bpp = PIXMAN_FORMAT_BPP (pixman_image_get_format (img));
- int i, j;
-
- /* swap bytes only on big endian systems */
- volatile uint16_t endian_check_var = 0x1234;
- if (*(volatile uint8_t *)&endian_check_var != 0x12)
- return;
-
- if (bpp == 8)
- return;
-
- for (i = 0; i < height; i++)
- {
- uint8_t *line_data = (uint8_t *)data + stride * i;
-
- switch (bpp)
- {
- case 1:
- for (j = 0; j < stride; j++)
- {
- line_data[j] =
- ((line_data[j] & 0x80) >> 7) |
- ((line_data[j] & 0x40) >> 5) |
- ((line_data[j] & 0x20) >> 3) |
- ((line_data[j] & 0x10) >> 1) |
- ((line_data[j] & 0x08) << 1) |
- ((line_data[j] & 0x04) << 3) |
- ((line_data[j] & 0x02) << 5) |
- ((line_data[j] & 0x01) << 7);
- }
- break;
- case 4:
- for (j = 0; j < stride; j++)
- {
- line_data[j] = (line_data[j] >> 4) | (line_data[j] << 4);
- }
- break;
- case 16:
- for (j = 0; j + 2 <= stride; j += 2)
- {
- char t1 = line_data[j + 0];
- char t2 = line_data[j + 1];
-
- line_data[j + 1] = t1;
- line_data[j + 0] = t2;
- }
- break;
- case 24:
- for (j = 0; j + 3 <= stride; j += 3)
- {
- char t1 = line_data[j + 0];
- char t2 = line_data[j + 1];
- char t3 = line_data[j + 2];
-
- line_data[j + 2] = t1;
- line_data[j + 1] = t2;
- line_data[j + 0] = t3;
- }
- break;
- case 32:
- for (j = 0; j + 4 <= stride; j += 4)
- {
- char t1 = line_data[j + 0];
- char t2 = line_data[j + 1];
- char t3 = line_data[j + 2];
- char t4 = line_data[j + 3];
-
- line_data[j + 3] = t1;
- line_data[j + 2] = t2;
- line_data[j + 1] = t3;
- line_data[j + 0] = t4;
- }
- break;
- default:
- assert (FALSE);
- break;
- }
- }
-}
-
-#define N_LEADING_PROTECTED 10
-#define N_TRAILING_PROTECTED 10
-
-typedef struct
-{
- void *addr;
- uint32_t len;
- uint8_t *trailing;
- int n_bytes;
-} info_t;
-
-#if defined(HAVE_MPROTECT) && defined(HAVE_GETPAGESIZE) && defined(HAVE_SYS_MMAN_H)
-
-/* This is apparently necessary on at least OS X */
-#ifndef MAP_ANONYMOUS
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-
-void *
-fence_malloc (int64_t len)
-{
- unsigned long page_size = getpagesize();
- unsigned long page_mask = page_size - 1;
- uint32_t n_payload_bytes = (len + page_mask) & ~page_mask;
- uint32_t n_bytes =
- (page_size * (N_LEADING_PROTECTED + N_TRAILING_PROTECTED + 2) +
- n_payload_bytes) & ~page_mask;
- uint8_t *initial_page;
- uint8_t *leading_protected;
- uint8_t *trailing_protected;
- uint8_t *payload;
- uint8_t *addr;
-
- if (len < 0)
- abort();
-
- addr = mmap (NULL, n_bytes, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS,
- -1, 0);
-
- if (addr == MAP_FAILED)
- {
- printf ("mmap failed on %lld %u\n", (long long int)len, n_bytes);
- return NULL;
- }
-
- initial_page = (uint8_t *)(((unsigned long)addr + page_mask) & ~page_mask);
- leading_protected = initial_page + page_size;
- payload = leading_protected + N_LEADING_PROTECTED * page_size;
- trailing_protected = payload + n_payload_bytes;
-
- ((info_t *)initial_page)->addr = addr;
- ((info_t *)initial_page)->len = len;
- ((info_t *)initial_page)->trailing = trailing_protected;
- ((info_t *)initial_page)->n_bytes = n_bytes;
-
- if ((mprotect (leading_protected, N_LEADING_PROTECTED * page_size,
- PROT_NONE) == -1) ||
- (mprotect (trailing_protected, N_TRAILING_PROTECTED * page_size,
- PROT_NONE) == -1))
- {
- munmap (addr, n_bytes);
- return NULL;
- }
-
- return payload;
-}
-
-void
-fence_free (void *data)
-{
- uint32_t page_size = getpagesize();
- uint8_t *payload = data;
- uint8_t *leading_protected = payload - N_LEADING_PROTECTED * page_size;
- uint8_t *initial_page = leading_protected - page_size;
- info_t *info = (info_t *)initial_page;
-
- munmap (info->addr, info->n_bytes);
-}
-
-#else
-
-void *
-fence_malloc (int64_t len)
-{
- return malloc (len);
-}
-
-void
-fence_free (void *data)
-{
- free (data);
-}
-
-#endif
-
-uint8_t *
-make_random_bytes (int n_bytes)
-{
- uint8_t *bytes = fence_malloc (n_bytes);
- int i;
-
- if (!bytes)
- return NULL;
-
- for (i = 0; i < n_bytes; ++i)
- bytes[i] = lcg_rand () & 0xff;
-
- return bytes;
-}
-
-/*
- * A function, which can be used as a core part of the test programs,
- * intended to detect various problems with the help of fuzzing input
- * to pixman API (according to some templates, aka "smart" fuzzing).
- * Some general information about such testing can be found here:
- * http://en.wikipedia.org/wiki/Fuzz_testing
- *
- * It may help detecting:
- * - crashes on bad handling of valid or reasonably invalid input to
- * pixman API.
- * - deviations from the behavior of older pixman releases.
- * - deviations from the behavior of the same pixman release, but
- * configured in a different way (for example with SIMD optimizations
- * disabled), or running on a different OS or hardware.
- *
- * The test is performed by calling a callback function a huge number
- * of times. The callback function is expected to run some snippet of
- * pixman code with pseudorandom variations to the data feeded to
- * pixman API. A result of running each callback function should be
- * some deterministic value which depends on test number (test number
- * can be used as a seed for PRNG). When 'verbose' argument is nonzero,
- * callback function is expected to print to stdout some information
- * about what it does.
- *
- * Return values from many small tests are accumulated together and
- * used as final checksum, which can be compared to some expected
- * value. Running the tests not individually, but in a batch helps
- * to reduce process start overhead and also allows to parallelize
- * testing and utilize multiple CPU cores.
- *
- * The resulting executable can be run without any arguments. In
- * this case it runs a batch of tests starting from 1 and up to
- * 'default_number_of_iterations'. The resulting checksum is
- * compared with 'expected_checksum' and FAIL or PASS verdict
- * depends on the result of this comparison.
- *
- * If the executable is run with 2 numbers provided as command line
- * arguments, they specify the starting and ending numbers for a test
- * batch.
- *
- * If the executable is run with only one number provided as a command
- * line argument, then this number is used to call the callback function
- * once, and also with verbose flag set.
- */
-int
-fuzzer_test_main (const char *test_name,
- int default_number_of_iterations,
- uint32_t expected_checksum,
- uint32_t (*test_function)(int testnum, int verbose),
- int argc,
- const char *argv[])
-{
- int i, n1 = 1, n2 = 0;
- uint32_t checksum = 0;
- int verbose = getenv ("VERBOSE") != NULL;
-
- if (argc >= 3)
- {
- n1 = atoi (argv[1]);
- n2 = atoi (argv[2]);
- if (n2 < n1)
- {
- printf ("invalid test range\n");
- return 1;
- }
- }
- else if (argc >= 2)
- {
- n2 = atoi (argv[1]);
- checksum = test_function (n2, 1);
- printf ("%d: checksum=%08X\n", n2, checksum);
- return 0;
- }
- else
- {
- n1 = 1;
- n2 = default_number_of_iterations;
- }
-
-#ifdef USE_OPENMP
- #pragma omp parallel for reduction(+:checksum) default(none) \
- shared(n1, n2, test_function, verbose)
-#endif
- for (i = n1; i <= n2; i++)
- {
- uint32_t crc = test_function (i, 0);
- if (verbose)
- printf ("%d: %08X\n", i, crc);
- checksum += crc;
- }
-
- if (n1 == 1 && n2 == default_number_of_iterations)
- {
- if (checksum == expected_checksum)
- {
- printf ("%s test passed (checksum=%08X)\n",
- test_name, checksum);
- }
- else
- {
- printf ("%s test failed! (checksum=%08X, expected %08X)\n",
- test_name, checksum, expected_checksum);
- return 1;
- }
- }
- else
- {
- printf ("%d-%d: checksum=%08X\n", n1, n2, checksum);
- }
-
- return 0;
-}
-
-/* Try to obtain current time in seconds */
-double
-gettime (void)
-{
-#ifdef HAVE_GETTIMEOFDAY
- struct timeval tv;
-
- gettimeofday (&tv, NULL);
- return (double)((int64_t)tv.tv_sec * 1000000 + tv.tv_usec) / 1000000.;
-#else
- return (double)clock() / (double)CLOCKS_PER_SEC;
-#endif
-}
-
-uint32_t
-get_random_seed (void)
-{
- double d = gettime();
-
- lcg_srand (*(uint32_t *)&d);
-
- return lcg_rand_u32 ();
-}
-
-static const char *global_msg;
-
-static void
-on_alarm (int signo)
-{
- printf ("%s\n", global_msg);
- exit (1);
-}
-
-void
-fail_after (int seconds, const char *msg)
-{
-#ifdef HAVE_SIGACTION
-#ifdef HAVE_ALARM
- struct sigaction action;
-
- global_msg = msg;
-
- memset (&action, 0, sizeof (action));
- action.sa_handler = on_alarm;
-
- alarm (seconds);
-
- sigaction (SIGALRM, &action, NULL);
-#endif
-#endif
-}
-
-void
-enable_fp_exceptions (void)
-{
-#ifdef HAVE_FENV_H
-#ifdef HAVE_FEENABLEEXCEPT
- /* Note: we don't enable the FE_INEXACT trap because
- * that happens quite commonly. It is possible that
- * over- and underflow should similarly be considered
- * okay, but for now the test suite passes with them
- * enabled, and it's useful to know if they start
- * occuring.
- */
- feenableexcept (FE_DIVBYZERO |
- FE_INVALID |
- FE_OVERFLOW |
- FE_UNDERFLOW);
-#endif
-#endif
-}
-
-void *
-aligned_malloc (size_t align, size_t size)
-{
- void *result;
-
-#ifdef HAVE_POSIX_MEMALIGN
- if (posix_memalign (&result, align, size) != 0)
- result = NULL;
-#else
- result = malloc (size);
-#endif
-
- return result;
-}
-
-#define CONVERT_15(c, is_rgb) \
- (is_rgb? \
- ((((c) >> 3) & 0x001f) | \
- (((c) >> 6) & 0x03e0) | \
- (((c) >> 9) & 0x7c00)) : \
- (((((c) >> 16) & 0xff) * 153 + \
- (((c) >> 8) & 0xff) * 301 + \
- (((c) ) & 0xff) * 58) >> 2))
-
-void
-initialize_palette (pixman_indexed_t *palette, uint32_t depth, int is_rgb)
-{
- int i;
- uint32_t mask = (1 << depth) - 1;
-
- for (i = 0; i < 32768; ++i)
- palette->ent[i] = lcg_rand() & mask;
-
- memset (palette->rgba, 0, sizeof (palette->rgba));
-
- for (i = 0; i < mask + 1; ++i)
- {
- uint32_t rgba24;
- pixman_bool_t retry;
- uint32_t i15;
-
- /* We filled the rgb->index map with random numbers, but we
- * do need the ability to round trip, that is if some indexed
- * color expands to an argb24, then the 15 bit version of that
- * color must map back to the index. Anything else, we don't
- * care about too much.
- */
- do
- {
- uint32_t old_idx;
-
- rgba24 = lcg_rand();
- i15 = CONVERT_15 (rgba24, is_rgb);
-
- old_idx = palette->ent[i15];
- if (CONVERT_15 (palette->rgba[old_idx], is_rgb) == i15)
- retry = 1;
- else
- retry = 0;
- } while (retry);
-
- palette->rgba[i] = rgba24;
- palette->ent[i15] = i;
- }
-
- for (i = 0; i < mask + 1; ++i)
- {
- assert (palette->ent[CONVERT_15 (palette->rgba[i], is_rgb)] == i);
- }
-}
+#define _GNU_SOURCE
+
+#include "utils.h"
+#include <signal.h>
+
+#ifdef HAVE_GETTIMEOFDAY
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+
+#ifdef HAVE_FENV_H
+#include <fenv.h>
+#endif
+
+/* Random number seed
+ */
+
+uint32_t lcg_seed;
+
+/*----------------------------------------------------------------------------*\
+ * CRC-32 version 2.0.0 by Craig Bruce, 2006-04-29.
+ *
+ * This program generates the CRC-32 values for the files named in the
+ * command-line arguments. These are the same CRC-32 values used by GZIP,
+ * PKZIP, and ZMODEM. The Crc32_ComputeBuf () can also be detached and
+ * used independently.
+ *
+ * THIS PROGRAM IS PUBLIC-DOMAIN SOFTWARE.
+ *
+ * Based on the byte-oriented implementation "File Verification Using CRC"
+ * by Mark R. Nelson in Dr. Dobb's Journal, May 1992, pp. 64-67.
+ *
+ * v1.0.0: original release.
+ * v1.0.1: fixed printf formats.
+ * v1.0.2: fixed something else.
+ * v1.0.3: replaced CRC constant table by generator function.
+ * v1.0.4: reformatted code, made ANSI C. 1994-12-05.
+ * v2.0.0: rewrote to use memory buffer & static table, 2006-04-29.
+\*----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------*\
+ * NAME:
+ * Crc32_ComputeBuf () - computes the CRC-32 value of a memory buffer
+ * DESCRIPTION:
+ * Computes or accumulates the CRC-32 value for a memory buffer.
+ * The 'inCrc32' gives a previously accumulated CRC-32 value to allow
+ * a CRC to be generated for multiple sequential buffer-fuls of data.
+ * The 'inCrc32' for the first buffer must be zero.
+ * ARGUMENTS:
+ * inCrc32 - accumulated CRC-32 value, must be 0 on first call
+ * buf - buffer to compute CRC-32 value for
+ * bufLen - number of bytes in buffer
+ * RETURNS:
+ * crc32 - computed CRC-32 value
+ * ERRORS:
+ * (no errors are possible)
+\*----------------------------------------------------------------------------*/
+
+uint32_t
+compute_crc32 (uint32_t in_crc32,
+ const void *buf,
+ size_t buf_len)
+{
+ static const uint32_t crc_table[256] = {
+ 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F,
+ 0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
+ 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2,
+ 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+ 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9,
+ 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
+ 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C,
+ 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+ 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423,
+ 0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+ 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106,
+ 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+ 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D,
+ 0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
+ 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
+ 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+ 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7,
+ 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
+ 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA,
+ 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+ 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
+ 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
+ 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84,
+ 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+ 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB,
+ 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
+ 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E,
+ 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+ 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55,
+ 0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+ 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28,
+ 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+ 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F,
+ 0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
+ 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
+ 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+ 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69,
+ 0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
+ 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC,
+ 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+ 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693,
+ 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
+ 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
+ };
+
+ uint32_t crc32;
+ unsigned char * byte_buf;
+ size_t i;
+
+ /* accumulate crc32 for buffer */
+ crc32 = in_crc32 ^ 0xFFFFFFFF;
+ byte_buf = (unsigned char*) buf;
+
+ for (i = 0; i < buf_len; i++)
+ crc32 = (crc32 >> 8) ^ crc_table[(crc32 ^ byte_buf[i]) & 0xFF];
+
+ return (crc32 ^ 0xFFFFFFFF);
+}
+
+/* perform endian conversion of pixel data
+ */
+void
+image_endian_swap (pixman_image_t *img)
+{
+ int stride = pixman_image_get_stride (img);
+ uint32_t *data = pixman_image_get_data (img);
+ int height = pixman_image_get_height (img);
+ int bpp = PIXMAN_FORMAT_BPP (pixman_image_get_format (img));
+ int i, j;
+
+ /* swap bytes only on big endian systems */
+ volatile uint16_t endian_check_var = 0x1234;
+ if (*(volatile uint8_t *)&endian_check_var != 0x12)
+ return;
+
+ if (bpp == 8)
+ return;
+
+ for (i = 0; i < height; i++)
+ {
+ uint8_t *line_data = (uint8_t *)data + stride * i;
+
+ switch (bpp)
+ {
+ case 1:
+ for (j = 0; j < stride; j++)
+ {
+ line_data[j] =
+ ((line_data[j] & 0x80) >> 7) |
+ ((line_data[j] & 0x40) >> 5) |
+ ((line_data[j] & 0x20) >> 3) |
+ ((line_data[j] & 0x10) >> 1) |
+ ((line_data[j] & 0x08) << 1) |
+ ((line_data[j] & 0x04) << 3) |
+ ((line_data[j] & 0x02) << 5) |
+ ((line_data[j] & 0x01) << 7);
+ }
+ break;
+ case 4:
+ for (j = 0; j < stride; j++)
+ {
+ line_data[j] = (line_data[j] >> 4) | (line_data[j] << 4);
+ }
+ break;
+ case 16:
+ for (j = 0; j + 2 <= stride; j += 2)
+ {
+ char t1 = line_data[j + 0];
+ char t2 = line_data[j + 1];
+
+ line_data[j + 1] = t1;
+ line_data[j + 0] = t2;
+ }
+ break;
+ case 24:
+ for (j = 0; j + 3 <= stride; j += 3)
+ {
+ char t1 = line_data[j + 0];
+ char t2 = line_data[j + 1];
+ char t3 = line_data[j + 2];
+
+ line_data[j + 2] = t1;
+ line_data[j + 1] = t2;
+ line_data[j + 0] = t3;
+ }
+ break;
+ case 32:
+ for (j = 0; j + 4 <= stride; j += 4)
+ {
+ char t1 = line_data[j + 0];
+ char t2 = line_data[j + 1];
+ char t3 = line_data[j + 2];
+ char t4 = line_data[j + 3];
+
+ line_data[j + 3] = t1;
+ line_data[j + 2] = t2;
+ line_data[j + 1] = t3;
+ line_data[j + 0] = t4;
+ }
+ break;
+ default:
+ assert (FALSE);
+ break;
+ }
+ }
+}
+
+#define N_LEADING_PROTECTED 10
+#define N_TRAILING_PROTECTED 10
+
+typedef struct
+{
+ void *addr;
+ uint32_t len;
+ uint8_t *trailing;
+ int n_bytes;
+} info_t;
+
+#if defined(HAVE_MPROTECT) && defined(HAVE_GETPAGESIZE) && defined(HAVE_SYS_MMAN_H)
+
+/* This is apparently necessary on at least OS X */
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+void *
+fence_malloc (int64_t len)
+{
+ unsigned long page_size = getpagesize();
+ unsigned long page_mask = page_size - 1;
+ uint32_t n_payload_bytes = (len + page_mask) & ~page_mask;
+ uint32_t n_bytes =
+ (page_size * (N_LEADING_PROTECTED + N_TRAILING_PROTECTED + 2) +
+ n_payload_bytes) & ~page_mask;
+ uint8_t *initial_page;
+ uint8_t *leading_protected;
+ uint8_t *trailing_protected;
+ uint8_t *payload;
+ uint8_t *addr;
+
+ if (len < 0)
+ abort();
+
+ addr = mmap (NULL, n_bytes, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS,
+ -1, 0);
+
+ if (addr == MAP_FAILED)
+ {
+ printf ("mmap failed on %lld %u\n", (long long int)len, n_bytes);
+ return NULL;
+ }
+
+ initial_page = (uint8_t *)(((unsigned long)addr + page_mask) & ~page_mask);
+ leading_protected = initial_page + page_size;
+ payload = leading_protected + N_LEADING_PROTECTED * page_size;
+ trailing_protected = payload + n_payload_bytes;
+
+ ((info_t *)initial_page)->addr = addr;
+ ((info_t *)initial_page)->len = len;
+ ((info_t *)initial_page)->trailing = trailing_protected;
+ ((info_t *)initial_page)->n_bytes = n_bytes;
+
+ if ((mprotect (leading_protected, N_LEADING_PROTECTED * page_size,
+ PROT_NONE) == -1) ||
+ (mprotect (trailing_protected, N_TRAILING_PROTECTED * page_size,
+ PROT_NONE) == -1))
+ {
+ munmap (addr, n_bytes);
+ return NULL;
+ }
+
+ return payload;
+}
+
+void
+fence_free (void *data)
+{
+ uint32_t page_size = getpagesize();
+ uint8_t *payload = data;
+ uint8_t *leading_protected = payload - N_LEADING_PROTECTED * page_size;
+ uint8_t *initial_page = leading_protected - page_size;
+ info_t *info = (info_t *)initial_page;
+
+ munmap (info->addr, info->n_bytes);
+}
+
+#else
+
+void *
+fence_malloc (int64_t len)
+{
+ return malloc (len);
+}
+
+void
+fence_free (void *data)
+{
+ free (data);
+}
+
+#endif
+
+uint8_t *
+make_random_bytes (int n_bytes)
+{
+ uint8_t *bytes = fence_malloc (n_bytes);
+ int i;
+
+ if (!bytes)
+ return NULL;
+
+ for (i = 0; i < n_bytes; ++i)
+ bytes[i] = lcg_rand () & 0xff;
+
+ return bytes;
+}
+
+/*
+ * A function, which can be used as a core part of the test programs,
+ * intended to detect various problems with the help of fuzzing input
+ * to pixman API (according to some templates, aka "smart" fuzzing).
+ * Some general information about such testing can be found here:
+ * http://en.wikipedia.org/wiki/Fuzz_testing
+ *
+ * It may help detecting:
+ * - crashes on bad handling of valid or reasonably invalid input to
+ * pixman API.
+ * - deviations from the behavior of older pixman releases.
+ * - deviations from the behavior of the same pixman release, but
+ * configured in a different way (for example with SIMD optimizations
+ * disabled), or running on a different OS or hardware.
+ *
+ * The test is performed by calling a callback function a huge number
+ * of times. The callback function is expected to run some snippet of
+ * pixman code with pseudorandom variations to the data feeded to
+ * pixman API. A result of running each callback function should be
+ * some deterministic value which depends on test number (test number
+ * can be used as a seed for PRNG). When 'verbose' argument is nonzero,
+ * callback function is expected to print to stdout some information
+ * about what it does.
+ *
+ * Return values from many small tests are accumulated together and
+ * used as final checksum, which can be compared to some expected
+ * value. Running the tests not individually, but in a batch helps
+ * to reduce process start overhead and also allows to parallelize
+ * testing and utilize multiple CPU cores.
+ *
+ * The resulting executable can be run without any arguments. In
+ * this case it runs a batch of tests starting from 1 and up to
+ * 'default_number_of_iterations'. The resulting checksum is
+ * compared with 'expected_checksum' and FAIL or PASS verdict
+ * depends on the result of this comparison.
+ *
+ * If the executable is run with 2 numbers provided as command line
+ * arguments, they specify the starting and ending numbers for a test
+ * batch.
+ *
+ * If the executable is run with only one number provided as a command
+ * line argument, then this number is used to call the callback function
+ * once, and also with verbose flag set.
+ */
+int
+fuzzer_test_main (const char *test_name,
+ int default_number_of_iterations,
+ uint32_t expected_checksum,
+ uint32_t (*test_function)(int testnum, int verbose),
+ int argc,
+ const char *argv[])
+{
+ int i, n1 = 1, n2 = 0;
+ uint32_t checksum = 0;
+ int verbose = getenv ("VERBOSE") != NULL;
+
+ if (argc >= 3)
+ {
+ n1 = atoi (argv[1]);
+ n2 = atoi (argv[2]);
+ if (n2 < n1)
+ {
+ printf ("invalid test range\n");
+ return 1;
+ }
+ }
+ else if (argc >= 2)
+ {
+ n2 = atoi (argv[1]);
+ checksum = test_function (n2, 1);
+ printf ("%d: checksum=%08X\n", n2, checksum);
+ return 0;
+ }
+ else
+ {
+ n1 = 1;
+ n2 = default_number_of_iterations;
+ }
+
+#ifdef USE_OPENMP
+ #pragma omp parallel for reduction(+:checksum) default(none) \
+ shared(n1, n2, test_function, verbose)
+#endif
+ for (i = n1; i <= n2; i++)
+ {
+ uint32_t crc = test_function (i, 0);
+ if (verbose)
+ printf ("%d: %08X\n", i, crc);
+ checksum += crc;
+ }
+
+ if (n1 == 1 && n2 == default_number_of_iterations)
+ {
+ if (checksum == expected_checksum)
+ {
+ printf ("%s test passed (checksum=%08X)\n",
+ test_name, checksum);
+ }
+ else
+ {
+ printf ("%s test failed! (checksum=%08X, expected %08X)\n",
+ test_name, checksum, expected_checksum);
+ return 1;
+ }
+ }
+ else
+ {
+ printf ("%d-%d: checksum=%08X\n", n1, n2, checksum);
+ }
+
+ return 0;
+}
+
+/* Try to obtain current time in seconds */
+double
+gettime (void)
+{
+#ifdef HAVE_GETTIMEOFDAY
+ struct timeval tv;
+
+ gettimeofday (&tv, NULL);
+ return (double)((int64_t)tv.tv_sec * 1000000 + tv.tv_usec) / 1000000.;
+#else
+ return (double)clock() / (double)CLOCKS_PER_SEC;
+#endif
+}
+
+uint32_t
+get_random_seed (void)
+{
+ double d = gettime();
+
+ lcg_srand (*(uint32_t *)&d);
+
+ return lcg_rand_u32 ();
+}
+
+static const char *global_msg;
+
+static void
+on_alarm (int signo)
+{
+ printf ("%s\n", global_msg);
+ exit (1);
+}
+
+void
+fail_after (int seconds, const char *msg)
+{
+#ifdef HAVE_SIGACTION
+#ifdef HAVE_ALARM
+ struct sigaction action;
+
+ global_msg = msg;
+
+ memset (&action, 0, sizeof (action));
+ action.sa_handler = on_alarm;
+
+ alarm (seconds);
+
+ sigaction (SIGALRM, &action, NULL);
+#endif
+#endif
+}
+
+void
+enable_fp_exceptions (void)
+{
+#ifdef HAVE_FENV_H
+#ifdef HAVE_FEENABLEEXCEPT
+ /* Note: we don't enable the FE_INEXACT trap because
+ * that happens quite commonly. It is possible that
+ * over- and underflow should similarly be considered
+ * okay, but for now the test suite passes with them
+ * enabled, and it's useful to know if they start
+ * occuring.
+ */
+ feenableexcept (FE_DIVBYZERO |
+ FE_INVALID |
+ FE_OVERFLOW |
+ FE_UNDERFLOW);
+#endif
+#endif
+}
+
+void *
+aligned_malloc (size_t align, size_t size)
+{
+ void *result;
+
+#ifdef HAVE_POSIX_MEMALIGN
+ if (posix_memalign (&result, align, size) != 0)
+ result = NULL;
+#else
+ result = malloc (size);
+#endif
+
+ return result;
+}
+
+#define CONVERT_15(c, is_rgb) \
+ (is_rgb? \
+ ((((c) >> 3) & 0x001f) | \
+ (((c) >> 6) & 0x03e0) | \
+ (((c) >> 9) & 0x7c00)) : \
+ (((((c) >> 16) & 0xff) * 153 + \
+ (((c) >> 8) & 0xff) * 301 + \
+ (((c) ) & 0xff) * 58) >> 2))
+
+void
+initialize_palette (pixman_indexed_t *palette, uint32_t depth, int is_rgb)
+{
+ int i;
+ uint32_t mask = (1 << depth) - 1;
+
+ for (i = 0; i < 32768; ++i)
+ palette->ent[i] = lcg_rand() & mask;
+
+ memset (palette->rgba, 0, sizeof (palette->rgba));
+
+ for (i = 0; i < mask + 1; ++i)
+ {
+ uint32_t rgba24;
+ pixman_bool_t retry;
+ uint32_t i15;
+
+ /* We filled the rgb->index map with random numbers, but we
+ * do need the ability to round trip, that is if some indexed
+ * color expands to an argb24, then the 15 bit version of that
+ * color must map back to the index. Anything else, we don't
+ * care about too much.
+ */
+ do
+ {
+ uint32_t old_idx;
+
+ rgba24 = lcg_rand();
+ i15 = CONVERT_15 (rgba24, is_rgb);
+
+ old_idx = palette->ent[i15];
+ if (CONVERT_15 (palette->rgba[old_idx], is_rgb) == i15)
+ retry = 1;
+ else
+ retry = 0;
+ } while (retry);
+
+ palette->rgba[i] = rgba24;
+ palette->ent[i15] = i;
+ }
+
+ for (i = 0; i < mask + 1; ++i)
+ {
+ assert (palette->ent[CONVERT_15 (palette->rgba[i], is_rgb)] == i);
+ }
+}
diff --git a/pixman/test/utils.h b/pixman/test/utils.h
index 615ad7841..8f0e0c0e5 100644
--- a/pixman/test/utils.h
+++ b/pixman/test/utils.h
@@ -1,140 +1,140 @@
-#include <stdlib.h>
-#include <config.h>
-#include <assert.h>
-#include "pixman-private.h" /* For 'inline' definition */
-
-#define ARRAY_LENGTH(A) ((int) (sizeof (A) / sizeof ((A) [0])))
-
-/* A primitive pseudorandom number generator,
- * taken from POSIX.1-2001 example
- */
-
-extern uint32_t lcg_seed;
-#ifdef USE_OPENMP
-#pragma omp threadprivate(lcg_seed)
-#endif
-
-static inline uint32_t
-lcg_rand (void)
-{
- lcg_seed = lcg_seed * 1103515245 + 12345;
- return ((uint32_t)(lcg_seed / 65536) % 32768);
-}
-
-static inline void
-lcg_srand (uint32_t seed)
-{
- lcg_seed = seed;
-}
-
-static inline uint32_t
-lcg_rand_n (int max)
-{
- return lcg_rand () % max;
-}
-
-static inline uint32_t
-lcg_rand_N (int max)
-{
- uint32_t lo = lcg_rand ();
- uint32_t hi = lcg_rand () << 15;
- return (lo | hi) % max;
-}
-
-static inline uint32_t
-lcg_rand_u32 (void)
-{
- uint32_t lo = lcg_rand();
- uint32_t hi = lcg_rand();
-
- return (hi << 16) | lo;
-}
-
-/* CRC 32 computation
- */
-uint32_t
-compute_crc32 (uint32_t in_crc32,
- const void *buf,
- size_t buf_len);
-
-/* perform endian conversion of pixel data
- */
-void
-image_endian_swap (pixman_image_t *img);
-
-/* Allocate memory that is bounded by protected pages,
- * so that out-of-bounds access will cause segfaults
- */
-void *
-fence_malloc (int64_t len);
-
-void
-fence_free (void *data);
-
-/* Generate n_bytes random bytes in fence_malloced memory */
-uint8_t *
-make_random_bytes (int n_bytes);
-
-/* Return current time in seconds */
-double
-gettime (void);
-
-uint32_t
-get_random_seed (void);
-
-/* main body of the fuzzer test */
-int
-fuzzer_test_main (const char *test_name,
- int default_number_of_iterations,
- uint32_t expected_checksum,
- uint32_t (*test_function)(int testnum, int verbose),
- int argc,
- const char *argv[]);
-
-void
-fail_after (int seconds, const char *msg);
-
-/* If possible, enable traps for floating point exceptions */
-void enable_fp_exceptions(void);
-
-/* A pair of macros which can help to detect corruption of
- * floating point registers after a function call. This may
- * happen if _mm_empty() call is forgotten in MMX/SSE2 fast
- * path code, or ARM NEON assembly optimized function forgets
- * to save/restore d8-d15 registers before use.
- */
-
-#define FLOAT_REGS_CORRUPTION_DETECTOR_START() \
- static volatile double frcd_volatile_constant1 = 123451; \
- static volatile double frcd_volatile_constant2 = 123452; \
- static volatile double frcd_volatile_constant3 = 123453; \
- static volatile double frcd_volatile_constant4 = 123454; \
- static volatile double frcd_volatile_constant5 = 123455; \
- static volatile double frcd_volatile_constant6 = 123456; \
- static volatile double frcd_volatile_constant7 = 123457; \
- static volatile double frcd_volatile_constant8 = 123458; \
- double frcd_canary_variable1 = frcd_volatile_constant1; \
- double frcd_canary_variable2 = frcd_volatile_constant2; \
- double frcd_canary_variable3 = frcd_volatile_constant3; \
- double frcd_canary_variable4 = frcd_volatile_constant4; \
- double frcd_canary_variable5 = frcd_volatile_constant5; \
- double frcd_canary_variable6 = frcd_volatile_constant6; \
- double frcd_canary_variable7 = frcd_volatile_constant7; \
- double frcd_canary_variable8 = frcd_volatile_constant8;
-
-#define FLOAT_REGS_CORRUPTION_DETECTOR_FINISH() \
- assert (frcd_canary_variable1 == frcd_volatile_constant1); \
- assert (frcd_canary_variable2 == frcd_volatile_constant2); \
- assert (frcd_canary_variable3 == frcd_volatile_constant3); \
- assert (frcd_canary_variable4 == frcd_volatile_constant4); \
- assert (frcd_canary_variable5 == frcd_volatile_constant5); \
- assert (frcd_canary_variable6 == frcd_volatile_constant6); \
- assert (frcd_canary_variable7 == frcd_volatile_constant7); \
- assert (frcd_canary_variable8 == frcd_volatile_constant8);
-
-/* Try to get an aligned memory chunk */
-void *
-aligned_malloc (size_t align, size_t size);
-
-void
-initialize_palette (pixman_indexed_t *palette, uint32_t depth, int is_rgb);
+#include <stdlib.h>
+#include <config.h>
+#include <assert.h>
+#include "pixman-private.h" /* For 'inline' definition */
+
+#define ARRAY_LENGTH(A) ((int) (sizeof (A) / sizeof ((A) [0])))
+
+/* A primitive pseudorandom number generator,
+ * taken from POSIX.1-2001 example
+ */
+
+extern uint32_t lcg_seed;
+#ifdef USE_OPENMP
+#pragma omp threadprivate(lcg_seed)
+#endif
+
+static inline uint32_t
+lcg_rand (void)
+{
+ lcg_seed = lcg_seed * 1103515245 + 12345;
+ return ((uint32_t)(lcg_seed / 65536) % 32768);
+}
+
+static inline void
+lcg_srand (uint32_t seed)
+{
+ lcg_seed = seed;
+}
+
+static inline uint32_t
+lcg_rand_n (int max)
+{
+ return lcg_rand () % max;
+}
+
+static inline uint32_t
+lcg_rand_N (int max)
+{
+ uint32_t lo = lcg_rand ();
+ uint32_t hi = lcg_rand () << 15;
+ return (lo | hi) % max;
+}
+
+static inline uint32_t
+lcg_rand_u32 (void)
+{
+ uint32_t lo = lcg_rand();
+ uint32_t hi = lcg_rand();
+
+ return (hi << 16) | lo;
+}
+
+/* CRC 32 computation
+ */
+uint32_t
+compute_crc32 (uint32_t in_crc32,
+ const void *buf,
+ size_t buf_len);
+
+/* perform endian conversion of pixel data
+ */
+void
+image_endian_swap (pixman_image_t *img);
+
+/* Allocate memory that is bounded by protected pages,
+ * so that out-of-bounds access will cause segfaults
+ */
+void *
+fence_malloc (int64_t len);
+
+void
+fence_free (void *data);
+
+/* Generate n_bytes random bytes in fence_malloced memory */
+uint8_t *
+make_random_bytes (int n_bytes);
+
+/* Return current time in seconds */
+double
+gettime (void);
+
+uint32_t
+get_random_seed (void);
+
+/* main body of the fuzzer test */
+int
+fuzzer_test_main (const char *test_name,
+ int default_number_of_iterations,
+ uint32_t expected_checksum,
+ uint32_t (*test_function)(int testnum, int verbose),
+ int argc,
+ const char *argv[]);
+
+void
+fail_after (int seconds, const char *msg);
+
+/* If possible, enable traps for floating point exceptions */
+void enable_fp_exceptions(void);
+
+/* A pair of macros which can help to detect corruption of
+ * floating point registers after a function call. This may
+ * happen if _mm_empty() call is forgotten in MMX/SSE2 fast
+ * path code, or ARM NEON assembly optimized function forgets
+ * to save/restore d8-d15 registers before use.
+ */
+
+#define FLOAT_REGS_CORRUPTION_DETECTOR_START() \
+ static volatile double frcd_volatile_constant1 = 123451; \
+ static volatile double frcd_volatile_constant2 = 123452; \
+ static volatile double frcd_volatile_constant3 = 123453; \
+ static volatile double frcd_volatile_constant4 = 123454; \
+ static volatile double frcd_volatile_constant5 = 123455; \
+ static volatile double frcd_volatile_constant6 = 123456; \
+ static volatile double frcd_volatile_constant7 = 123457; \
+ static volatile double frcd_volatile_constant8 = 123458; \
+ double frcd_canary_variable1 = frcd_volatile_constant1; \
+ double frcd_canary_variable2 = frcd_volatile_constant2; \
+ double frcd_canary_variable3 = frcd_volatile_constant3; \
+ double frcd_canary_variable4 = frcd_volatile_constant4; \
+ double frcd_canary_variable5 = frcd_volatile_constant5; \
+ double frcd_canary_variable6 = frcd_volatile_constant6; \
+ double frcd_canary_variable7 = frcd_volatile_constant7; \
+ double frcd_canary_variable8 = frcd_volatile_constant8;
+
+#define FLOAT_REGS_CORRUPTION_DETECTOR_FINISH() \
+ assert (frcd_canary_variable1 == frcd_volatile_constant1); \
+ assert (frcd_canary_variable2 == frcd_volatile_constant2); \
+ assert (frcd_canary_variable3 == frcd_volatile_constant3); \
+ assert (frcd_canary_variable4 == frcd_volatile_constant4); \
+ assert (frcd_canary_variable5 == frcd_volatile_constant5); \
+ assert (frcd_canary_variable6 == frcd_volatile_constant6); \
+ assert (frcd_canary_variable7 == frcd_volatile_constant7); \
+ assert (frcd_canary_variable8 == frcd_volatile_constant8);
+
+/* Try to get an aligned memory chunk */
+void *
+aligned_malloc (size_t align, size_t size);
+
+void
+initialize_palette (pixman_indexed_t *palette, uint32_t depth, int is_rgb);
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