fontconfig mesa pixman git update 20 Sep 2013

pixman           commit aa5c45254eb60ce4c85a25b5343474fb160ffa7c
fontconfig       commit 643f8088f0d51107e58d142df47124efec6afab1
mesa             commit 1cc3b90d47f92aa0be2d914191fd2f46d2b127d7

9 files changed, 145 insertions, 96 deletions

diff --git a/pixman/demos/scale.ui b/pixman/demos/scale.ui
index b3450d34d..ee985dd1c 100644
--- a/pixman/demos/scale.ui
+++ b/pixman/demos/scale.ui
@@ -24,7 +24,7 @@
     <property name="page_size">10</property>
   </object>
   <object class="GtkAdjustment" id="subsample_adjustment">
-    <property name="lower">1</property>
+    <property name="lower">0</property>
     <property name="upper">12</property>
     <property name="step_increment">1</property>
     <property name="page_increment">1</property>
diff --git a/pixman/pixman/pixman-filter.c b/pixman/pixman/pixman-filter.c
index 5ff7b6eaa..b2bf53fed 100644
--- a/pixman/pixman/pixman-filter.c
+++ b/pixman/pixman/pixman-filter.c
@@ -275,7 +275,7 @@ create_1d_filter (int             *width,
 	    }
 
 	    total += c;
-            *p++ = (pixman_fixed_t)(c * 65535.0 + 0.5);
+            *p++ = (pixman_fixed_t)(c * 65536.0 + 0.5);
         }
 
 	/* Normalize */
diff --git a/pixman/test/affine-test.c b/pixman/test/affine-test.c
index c1649ed5e..8e19023a3 100644
--- a/pixman/test/affine-test.c
+++ b/pixman/test/affine-test.c
@@ -80,6 +80,18 @@ test_composite (int      testnum,
     prng_randmemset (srcbuf, src_stride * src_height, 0);
     prng_randmemset (dstbuf, dst_stride * dst_height, 0);
 
+    if (prng_rand_n (2) == 0)
+    {
+	srcbuf += (src_stride / 4) * (src_height - 1);
+	src_stride = - src_stride;
+    }
+
+    if (prng_rand_n (2) == 0)
+    {
+	dstbuf += (dst_stride / 4) * (dst_height - 1);
+	dst_stride = - dst_stride;
+    }
+    
     src_fmt = src_bpp == 4 ? (prng_rand_n (2) == 0 ?
                               PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5;
 
@@ -273,32 +285,20 @@ test_composite (int      testnum,
     pixman_image_composite (op, src_img, NULL, dst_img,
                             src_x, src_y, 0, 0, dst_x, dst_y, w, h);
 
-    if (dst_fmt == PIXMAN_x8r8g8b8)
-    {
-	/* ignore unused part */
-	for (i = 0; i < dst_stride * dst_height / 4; i++)
-	    dstbuf[i] &= 0xFFFFFF;
-    }
-
-    image_endian_swap (dst_img);
-
+    crc32 = compute_crc32_for_image (0, dst_img);
+    
     if (verbose)
-    {
-	int j;
-
-	for (i = 0; i < dst_height; i++)
-	{
-	    for (j = 0; j < dst_stride; j++)
-		printf ("%02X ", *((uint8_t *)dstbuf + i * dst_stride + j));
-
-	    printf ("\n");
-	}
-    }
+	print_image (dst_img);
 
     pixman_image_unref (src_img);
     pixman_image_unref (dst_img);
 
-    crc32 = compute_crc32 (0, dstbuf, dst_stride * dst_height);
+    if (src_stride < 0)
+	srcbuf += (src_stride / 4) * (src_height - 1);
+
+    if (dst_stride < 0)
+	dstbuf += (dst_stride / 4) * (dst_height - 1);
+    
     free (srcbuf);
     free (dstbuf);
 
@@ -307,9 +307,9 @@ test_composite (int      testnum,
 }
 
 #if BILINEAR_INTERPOLATION_BITS == 7
-#define CHECKSUM 0xBC00B1DF
+#define CHECKSUM 0xBE724CFE
 #elif BILINEAR_INTERPOLATION_BITS == 4
-#define CHECKSUM 0xA227306B
+#define CHECKSUM 0x79BBE501
 #else
 #define CHECKSUM 0x00000000
 #endif
diff --git a/pixman/test/blitters-test.c b/pixman/test/blitters-test.c
index a2c6ff4d8..af948350b 100644
--- a/pixman/test/blitters-test.c
+++ b/pixman/test/blitters-test.c
@@ -57,6 +57,13 @@ create_random_image (pixman_format_code_t *allowed_formats,
 	prng_randmemset (buf, stride * height, RANDMEMSET_MORE_00_AND_FF);
     }
 
+    /* test negative stride */
+    if (prng_rand_n (4) == 0)
+    {
+	buf += (stride / 4) * (height - 1);
+	stride = - stride;
+    }
+    
     img = pixman_image_create_bits (fmt, width, height, buf, stride);
 
     if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_COLOR)
@@ -89,6 +96,9 @@ free_random_image (uint32_t initcrc,
     if (fmt != PIXMAN_null)
 	crc32 = compute_crc32_for_image (initcrc, img);
 
+    if (img->bits.rowstride < 0)
+	data += img->bits.rowstride * (img->bits.height - 1);
+
     pixman_image_unref (img);
     free (data);
 
@@ -222,7 +232,6 @@ static pixman_format_code_t mask_fmt_list[] = {
 uint32_t
 test_composite (int testnum, int verbose)
 {
-    int i;
     pixman_image_t *src_img = NULL;
     pixman_image_t *dst_img = NULL;
     pixman_image_t *mask_img = NULL;
@@ -355,23 +364,7 @@ test_composite (int testnum, int verbose)
 			    src_x, src_y, mask_x, mask_y, dst_x, dst_y, w, h);
 
     if (verbose)
-    {
-	int j;
-
-	printf ("---\n");
-	for (i = 0; i < dst_height; i++)
-	{
-	    for (j = 0; j < dst_stride; j++)
-	    {
-		if (j == (dst_width * PIXMAN_FORMAT_BPP (dst_fmt) + 7) / 8)
-		    printf ("| ");
-
-		printf ("%02X ", *((uint8_t *)dstbuf + i * dst_stride + j));
-	    }
-	    printf ("\n");
-	}
-	printf ("---\n");
-    }
+	print_image (dst_img);
 
     free_random_image (0, src_img, PIXMAN_null);
     crc32 = free_random_image (0, dst_img, dst_fmt);
@@ -402,6 +395,6 @@ main (int argc, const char *argv[])
     }
 
     return fuzzer_test_main("blitters", 2000000,
-			    0x0CF3283B,
+			    0xAC8FDA98,
 			    test_composite, argc, argv);
 }
diff --git a/pixman/test/composite-traps-test.c b/pixman/test/composite-traps-test.c
index 2983eae83..86a035564 100644
--- a/pixman/test/composite-traps-test.c
+++ b/pixman/test/composite-traps-test.c
@@ -97,19 +97,25 @@ test_composite (int      testnum,
 	int src_width = prng_rand_n (MAX_SRC_WIDTH) + 1;
 	int src_height = prng_rand_n (MAX_SRC_HEIGHT) + 1;
 	int src_stride = src_width * src_bpp + prng_rand_n (MAX_STRIDE) * src_bpp;
-	uint32_t *bits;
+	uint32_t *bits, *orig;
 
 	src_x = -(src_width / 4) + prng_rand_n (src_width * 3 / 2);
 	src_y = -(src_height / 4) + prng_rand_n (src_height * 3 / 2);
 
 	src_stride = (src_stride + 3) & ~3;
 	
-	bits = (uint32_t *)make_random_bytes (src_stride * src_height);
+	orig = bits = (uint32_t *)make_random_bytes (src_stride * src_height);
 
+	if (prng_rand_n (2) == 0)
+	{
+	    bits += (src_stride / 4) * (src_height - 1);
+	    src_stride = - src_stride;
+	}
+	
 	src_img = pixman_image_create_bits (
 	    src_format, src_width, src_height, bits, src_stride);
 
-	pixman_image_set_destroy_function (src_img, destroy_bits, bits);
+	pixman_image_set_destroy_function (src_img, destroy_bits, orig);
 
 	if (prng_rand_n (8) == 0)
 	{
@@ -153,6 +159,12 @@ test_composite (int      testnum,
 	
 	dst_bits = (uint32_t *)make_random_bytes (dst_stride * dst_height);
 
+	if (prng_rand_n (2) == 0)
+	{
+	    dst_bits += (dst_stride / 4) * (dst_height - 1);
+	    dst_stride = - dst_stride;
+	}
+	
 	dst_x = -(dst_width / 4) + prng_rand_n (dst_width * 3 / 2);
 	dst_y = -(dst_height / 4) + prng_rand_n (dst_height * 3 / 2);
 	
@@ -214,30 +226,14 @@ test_composite (int      testnum,
     pixman_composite_trapezoids (op, src_img, dst_img, mask_format,
 				 src_x, src_y, dst_x, dst_y, n_traps, traps);
 
-    if (dst_format == PIXMAN_x8r8g8b8)
-    {
-	/* ignore unused part */
-	for (i = 0; i < dst_stride * dst_height / 4; i++)
-	    dst_bits[i] &= 0xFFFFFF;
-    }
-
-    image_endian_swap (dst_img);
+    crc32 = compute_crc32_for_image (0, dst_img);
 
     if (verbose)
-    {
-	int j;
-	
-	for (i = 0; i < dst_height; i++)
-	{
-	    for (j = 0; j < dst_stride; j++)
-		printf ("%02X ", *((uint8_t *)dst_bits + i * dst_stride + j));
-
-	    printf ("\n");
-	}
-    }
-
-    crc32 = compute_crc32 (0, dst_bits, dst_stride * dst_height);
+	print_image (dst_img);
 
+    if (dst_stride < 0)
+	dst_bits += (dst_stride / 4) * (dst_height - 1);
+    
     fence_free (dst_bits);
     
     pixman_image_unref (src_img);
@@ -251,6 +247,6 @@ test_composite (int      testnum,
 int
 main (int argc, const char *argv[])
 {
-    return fuzzer_test_main("composite traps", 40000, 0x749BCC57,
+    return fuzzer_test_main("composite traps", 40000, 0xAF41D210,
 			    test_composite, argc, argv);
 }
diff --git a/pixman/test/rotate-test.c b/pixman/test/rotate-test.c
index 9d2a620cb..18ca60d9b 100644
--- a/pixman/test/rotate-test.c
+++ b/pixman/test/rotate-test.c
@@ -61,16 +61,25 @@ static pixman_image_t *
 make_image (void)
 {
     pixman_format_code_t format = RANDOM_FORMAT();
-    uint32_t *bytes = malloc (WIDTH * HEIGHT * 4);
+    uint32_t *bytes, *orig;
     pixman_image_t *image;
+    int stride;
 
+    orig = bytes = malloc (WIDTH * HEIGHT * 4);
     prng_randmemset (bytes, WIDTH * HEIGHT * 4, 0);
 
+    stride = WIDTH * 4;
+    if (prng_rand_n (2) == 0)
+    {
+	bytes += (stride / 4) * (HEIGHT - 1);
+	stride = - stride;
+    }
+
     image = pixman_image_create_bits (
-	format, WIDTH, HEIGHT, bytes, WIDTH * 4);
+	format, WIDTH, HEIGHT, bytes, stride);
 
     pixman_image_set_transform (image, RANDOM_TRANSFORM());
-    pixman_image_set_destroy_function (image, on_destroy, bytes);
+    pixman_image_set_destroy_function (image, on_destroy, orig);
     pixman_image_set_repeat (image, PIXMAN_REPEAT_NORMAL);
 
     image_endian_swap (image);
@@ -106,6 +115,6 @@ int
 main (int argc, const char *argv[])
 {
     return fuzzer_test_main ("rotate", 15000,
-			     0xECF5E426,
+			     0x81E9EC2F,
 			     test_transform, argc, argv);
 }
diff --git a/pixman/test/scaling-test.c b/pixman/test/scaling-test.c
index b4142a796..e2f7fa9f4 100644
--- a/pixman/test/scaling-test.c
+++ b/pixman/test/scaling-test.c
@@ -147,6 +147,24 @@ test_composite (int      testnum,
     src_fmt = get_format (src_bpp);
     dst_fmt = get_format (dst_bpp);
 
+    if (prng_rand_n (2))
+    {
+	srcbuf += (src_stride / 4) * (src_height - 1);
+	src_stride = - src_stride;
+    }
+
+    if (prng_rand_n (2))
+    {
+	maskbuf += (mask_stride / 4) * (mask_height - 1);
+	mask_stride = - mask_stride;
+    }
+
+    if (prng_rand_n (2))
+    {
+	dstbuf += (dst_stride / 4) * (dst_height - 1);
+	dst_stride = - dst_stride;
+    }
+
     src_img = pixman_image_create_bits (
         src_fmt, src_width, src_height, srcbuf, src_stride);
 
@@ -340,33 +358,24 @@ test_composite (int      testnum,
 	pixman_image_composite (op, src_img, mask_img, dst_img,
                             src_x, src_y, mask_x, mask_y, dst_x, dst_y, w, h);
 
-    if (dst_fmt == PIXMAN_x8r8g8b8 || dst_fmt == PIXMAN_x8b8g8r8)
-    {
-	/* ignore unused part */
-	for (i = 0; i < dst_stride * dst_height / 4; i++)
-	    dstbuf[i] &= 0xFFFFFF;
-    }
-
-    image_endian_swap (dst_img);
-
+    crc32 = compute_crc32_for_image (0, dst_img);
+    
     if (verbose)
-    {
-	int j;
-	
-	for (i = 0; i < dst_height; i++)
-	{
-	    for (j = 0; j < dst_stride; j++)
-		printf ("%02X ", *((uint8_t *)dstbuf + i * dst_stride + j));
-
-	    printf ("\n");
-	}
-    }
+	print_image (dst_img);
 
     pixman_image_unref (src_img);
     pixman_image_unref (mask_img);
     pixman_image_unref (dst_img);
 
-    crc32 = compute_crc32 (0, dstbuf, dst_stride * dst_height);
+    if (src_stride < 0)
+	srcbuf += (src_stride / 4) * (src_height - 1);
+
+    if (mask_stride < 0)
+	maskbuf += (mask_stride / 4) * (mask_height - 1);
+
+    if (dst_stride < 0)
+	dstbuf += (dst_stride / 4) * (dst_height - 1);
+
     free (srcbuf);
     free (maskbuf);
     free (dstbuf);
@@ -376,9 +385,9 @@ test_composite (int      testnum,
 }
 
 #if BILINEAR_INTERPOLATION_BITS == 7
-#define CHECKSUM 0xCE8EC6BA
+#define CHECKSUM 0x92E0F068
 #elif BILINEAR_INTERPOLATION_BITS == 4
-#define CHECKSUM 0xAB1D39BE
+#define CHECKSUM 0x8EFFA1E5
 #else
 #define CHECKSUM 0x00000000
 #endif
diff --git a/pixman/test/utils.c b/pixman/test/utils.c
index 3d1ba22ae..34007476b 100644
--- a/pixman/test/utils.c
+++ b/pixman/test/utils.c
@@ -150,6 +150,12 @@ compute_crc32_for_image_internal (uint32_t        crc32,
     uint32_t mask = 0xffffffff;
     int i;
 
+    if (stride < 0)
+    {
+	data += (stride / 4) * (height - 1);
+	stride = - stride;
+    }
+
     /* mask unused 'x' part */
     if (PIXMAN_FORMAT_BPP (fmt) - PIXMAN_FORMAT_DEPTH (fmt) &&
 	PIXMAN_FORMAT_DEPTH (fmt) != 0)
@@ -238,6 +244,38 @@ compute_crc32_for_image (uint32_t        crc32,
     return crc32;
 }
 
+void
+print_image (pixman_image_t *image)
+{
+    int i, j;
+    int width, height, stride;
+    pixman_format_code_t format;
+    uint8_t *buffer;
+
+    width = pixman_image_get_width (image);
+    height = pixman_image_get_height (image);
+    stride = pixman_image_get_stride (image);
+    format = pixman_image_get_format (image);
+    buffer = (uint8_t *)pixman_image_get_data (image);
+
+    if (stride < 0)
+	stride = - stride;
+    
+    printf ("---\n");
+    for (i = 0; i < height; i++)
+    {
+	for (j = 0; j < stride; j++)
+	{
+	    if (j == (width * PIXMAN_FORMAT_BPP (format) + 7) / 8)
+		printf ("| ");
+
+	    printf ("%02X ", *((uint8_t *)buffer + i * stride + j));
+	}
+	printf ("\n");
+    }
+    printf ("---\n");
+}
+
 /* perform endian conversion of pixel data
  */
 void
diff --git a/pixman/test/utils.h b/pixman/test/utils.h
index c2781516f..28b7193ed 100644
--- a/pixman/test/utils.h
+++ b/pixman/test/utils.h
@@ -63,6 +63,10 @@ uint32_t
 compute_crc32_for_image (uint32_t        in_crc32,
 			 pixman_image_t *image);
 
+/* Print the image in hexadecimal */
+void
+print_image (pixman_image_t *image);
+
 /* Returns TRUE if running on a little endian system
  */
 static force_inline pixman_bool_t