From 67769ad5bf15450d0fd0d83643e3533a9f563916 Mon Sep 17 00:00:00 2001 From: Siarhei Siamashka Date: Wed, 22 Jul 2009 01:29:51 +0300 Subject: [PATCH] Test program for stressing the use of different formats and operators The code and overall method is mostly based on scaling-test. This one focuses on trying to stress as many different color formats and types of composition operations as possible. This is an initial implementation which may need more tuning. Also not all color format and operator combinations are actually used. When cpu specific optimizations are disabled, this test provides identical deterministic results on x86, PPC and ARM. Script blitters-test-bisect.rb now works in non-stop mode, until it finds any problem. This allows to run it for example overnight in order to test a lot more variants of pixman calls and increase chances of detecting problems in pixman. Just like with scaling-test, running blitters-test binary alone with no command line arguments runs a small predefined number of tests and compares checksum with a reference value for quick verification. --- test/Makefile.am | 2 + test/blitters-test-bisect.rb | 43 +++ test/blitters-test.c | 606 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 651 insertions(+) create mode 100644 test/blitters-test-bisect.rb create mode 100644 test/blitters-test.c diff --git a/test/Makefile.am b/test/Makefile.am index 324cb72..c56f62d 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -4,6 +4,7 @@ INCLUDES = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman TESTPROGRAMS = \ region-test \ scaling-test \ + blitters-test \ fetch-test \ oob-test \ window-test \ @@ -12,6 +13,7 @@ TESTPROGRAMS = \ fetch_test_LDADD = $(TEST_LDADD) region_test_LDADD = $(TEST_LDADD) scaling_test_LDADD = $(TEST_LDADD) +blitters_test_LDADD = $(TEST_LDADD) trap_crasher_LDADD = $(TEST_LDADD) oob_test_LDADD = $(TEST_LDADD) window_test_LDADD = $(TEST_LDADD) diff --git a/test/blitters-test-bisect.rb b/test/blitters-test-bisect.rb new file mode 100644 index 0000000..62ff782 --- /dev/null +++ b/test/blitters-test-bisect.rb @@ -0,0 +1,43 @@ +#!/usr/bin/env ruby + +if not ARGV[0] or not ARGV[1] then + printf("Please provide two 'blitters-test' static binaries in the command line.\n\n") + printf("The first should be linked with a correct reference pixman library.\n") + printf("The second binary should be linked with a pixman library which needs to be tested.\n") + exit(0) +end + +def test_range(min, max) + if `#{ARGV[0]} #{min} #{max} 2>/dev/null` == `#{ARGV[1]} #{min} #{max} 2>/dev/null` then + return + end + while max != min + 1 do + avg = ((min + max) / 2).to_i + res1 = `#{ARGV[0]} #{min} #{avg} 2>/dev/null` + res2 = `#{ARGV[1]} #{min} #{avg} 2>/dev/null` + if res1 != res2 then + max = avg + else + min = avg + end + end + return max +end + +base = 1 +while true do + # run infinitely, processing 100000 test cases per iteration + printf("running tests %d-%d\n", base, base + 100000 - 1); + res = test_range(base, base + 100000 - 1) + if res then + printf("-- ref --\n") + printf("%s\n", `#{ARGV[0]} -#{res}`) + printf("-- new --\n") + printf("%s\n", `#{ARGV[1]} -#{res}`) + + printf("\nFailed test %d, you can reproduce the problematic conditions by running\n", res) + printf("#{ARGV[1]} -%d\n", res) + exit(1) + end + base += 100000 +end diff --git a/test/blitters-test.c b/test/blitters-test.c new file mode 100644 index 0000000..1306040 --- /dev/null +++ b/test/blitters-test.c @@ -0,0 +1,606 @@ +/* + * Test program, which stresses the use of different color formats and + * compositing operations. + * + * Just run it without any command line arguments, and it will report either + * "blitters test passed" - everything is ok + * "blitters test failed!" - there is some problem + * + * In the case of failure, finding the problem involves the following steps: + * 1. Get the reference 'blitters-test' binary. It makes sense to disable all + * the cpu specific optimizations in pixman and also configure it with + * '--disable-shared' option. Those who are paranoid can also tweak the + * sources to disable all fastpath functions. The resulting binary + * can be renamed to something like 'blitters-test.ref'. + * 2. Compile the buggy binary (also with the '--disable-shared' option). + * 3. Run 'ruby blitters-test-bisect.rb ./blitters-test.ref ./blitters-test' + * 4. Look at the information about failed case (destination buffer content + * will be shown) and try to figure out what is wrong. Loading + * test program in gdb, specifying failed test number in the command + * line with '-' character prepended and setting breakpoint on + * 'pixman_image_composite' function can provide detailed information + * about function arguments + */ +#include +#include +#include +#include "pixman.h" + +/* A primitive pseudorandom number generator, taken from POSIX.1-2001 example */ + +static uint32_t lcg_seed; + +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; +} + +/*----------------------------------------------------------------------------*\ + * 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) +\*----------------------------------------------------------------------------*/ + +static 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 */ +static void +image_endian_swap (pixman_image_t *img, int bpp) +{ + int stride = pixman_image_get_stride (img); + uint32_t *data = pixman_image_get_data (img); + int height = pixman_image_get_height (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; + + for (i = 0; i < height; i++) + { + uint8_t *line_data = (uint8_t *)data + stride * i; + /* swap bytes only for 16, 24 and 32 bpp for now */ + 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: + break; + } + } +} + +/* Create random image for testing purposes */ +static pixman_image_t * +create_random_image ( + pixman_format_code_t *allowed_formats, + int max_width, + int max_height, + int max_extra_stride, + pixman_format_code_t *used_fmt) +{ + int n = 0, i, width, height, stride; + pixman_format_code_t fmt; + uint32_t *buf; + pixman_image_t *img; + while (allowed_formats[n] != -1) n++; + fmt = allowed_formats[lcg_rand_n (n)]; + width = lcg_rand_n (max_width) + 1; + height = lcg_rand_n (max_height) + 1; + stride = (width * PIXMAN_FORMAT_BPP (fmt) + 7) / 8 + lcg_rand_n (max_extra_stride + 1); + stride = (stride + 3) & ~3; + + /* do the allocation */ + buf = (uint32_t *)malloc (stride * height); + + /* initialize image with random data */ + for (i = 0; i < stride * height; i++) + { + /* generation is biased to having more 0 or 255 bytes as + they are more likely to be special-cased in code */ + *((uint8_t *)buf + i) = lcg_rand_n (4) ? lcg_rand_n (256) : + (lcg_rand_n (2) ? 0 : 255); + } + + img = pixman_image_create_bits ( + fmt, width, height, buf, stride); + + image_endian_swap (img, PIXMAN_FORMAT_BPP (fmt)); + + if (used_fmt) *used_fmt = fmt; + return img; +} + +/* Free random image, and optionally update crc32 based on its data */ +static uint32_t +free_random_image ( + uint32_t initcrc, + pixman_image_t *img, + pixman_format_code_t fmt) +{ + uint32_t crc32 = 0; + int stride = pixman_image_get_stride (img); + uint32_t *data = pixman_image_get_data (img); + int height = pixman_image_get_height (img);; + + if (fmt != -1) + { + /* mask unused 'x' part */ + if (PIXMAN_FORMAT_BPP (fmt) - PIXMAN_FORMAT_DEPTH (fmt) && + PIXMAN_FORMAT_DEPTH (fmt) != 0) + { + int i; + uint32_t *data = pixman_image_get_data (img); + uint32_t mask = (1 << PIXMAN_FORMAT_DEPTH (fmt)) - 1; + for (i = 0; i < 32; i++) + mask |= mask << (i * PIXMAN_FORMAT_BPP (fmt)); + + for (i = 0; i < stride * height / 4; i++) + data[i] &= mask; + } + /* swap endiannes in order to provide identical results on both big + and litte endian systems */ + image_endian_swap (img, PIXMAN_FORMAT_BPP (fmt)); + crc32 = compute_crc32 (initcrc, data, stride * height); + } + pixman_image_unref (img); + free (data); + return crc32; +} + +static pixman_op_t op_list[] = { + 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, +#if 0 /* using this crashes the test */ + PIXMAN_OP_DISJOINT_DST, +#endif + 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, +#if 0 /* using this crashes the test */ + PIXMAN_OP_CONJOINT_DST, +#endif + 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, +#if 0 /* these use floating point math and are not always bitexact on different platforms */ + PIXMAN_OP_SOFT_LIGHT, + PIXMAN_OP_HSL_HUE, + PIXMAN_OP_HSL_SATURATION, + PIXMAN_OP_HSL_COLOR, + PIXMAN_OP_HSL_LUMINOSITY, +#endif +}; +static pixman_format_code_t img_fmt_list[] = { + PIXMAN_a8r8g8b8, + PIXMAN_x8r8g8b8, + PIXMAN_a8b8g8r8, + PIXMAN_x8b8g8r8, + PIXMAN_b8g8r8a8, + PIXMAN_b8g8r8x8, + PIXMAN_r8g8b8, + PIXMAN_b8g8r8, + PIXMAN_r5g6b5, + PIXMAN_b5g6r5, +#if 0 /* using these makes valgrind complain */ + PIXMAN_x2r10g10b10, + PIXMAN_a2r10g10b10, + PIXMAN_x2b10g10r10, + PIXMAN_a2b10g10r10, +#endif + 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, +#if 0 /* using these crashes the test */ + PIXMAN_c8, + PIXMAN_g8, + PIXMAN_x4c4, + PIXMAN_x4g4, + PIXMAN_c4, + PIXMAN_g4, + PIXMAN_g1, +#endif + PIXMAN_x4a4, + PIXMAN_a4, + PIXMAN_r1g2b1, + PIXMAN_b1g2r1, + PIXMAN_a1r1g1b1, + PIXMAN_a1b1g1r1, + PIXMAN_a1, + -1 +}; +static pixman_format_code_t mask_fmt_list[] = { + PIXMAN_a8r8g8b8, + PIXMAN_a8, + PIXMAN_a4, + PIXMAN_a1, + -1 +}; + + +/* + * Composite operation with pseudorandom images + */ +uint32_t +test_composite (uint32_t initcrc, int testnum, int verbose) +{ + int i; + pixman_image_t *src_img = NULL; + pixman_image_t *dst_img = NULL; + pixman_image_t *mask_img = NULL; + int src_width, src_height; + int dst_width, dst_height; + int src_stride, dst_stride; + int src_x, src_y; + int dst_x, dst_y; + int w, h; + int op; + pixman_format_code_t src_fmt, dst_fmt, mask_fmt; + uint32_t *dstbuf; + uint32_t crc32; + int max_width, max_height, max_extra_stride; + + max_width = max_height = 12 + testnum / 100000; + max_extra_stride = 4 + testnum / 1000000; + if (max_width > 64) max_width = 64; + if (max_height > 16) max_height = 16; + if (max_extra_stride > 8) max_extra_stride = 8; + + lcg_srand (testnum); + + op = op_list[lcg_rand_n (sizeof (op_list) / sizeof (op_list[0]))]; + + if (lcg_rand_n (8)) + { + /* normal image */ + src_img = create_random_image (img_fmt_list, max_width, max_height, + max_extra_stride, &src_fmt); + } + else + { + /* solid case */ + src_img = create_random_image (img_fmt_list, 1, 1, + max_extra_stride, &src_fmt); + pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NORMAL); + } + + dst_img = create_random_image (img_fmt_list, max_width, max_height, + max_extra_stride, &dst_fmt); + + mask_img = NULL; + mask_fmt = -1; + if (lcg_rand_n (2)) + { + if (lcg_rand_n (2)) + { + mask_img = create_random_image (mask_fmt_list, max_width, max_height, + max_extra_stride, &mask_fmt); + } + else + { + /* solid case */ + mask_img = create_random_image (mask_fmt_list, 1, 1, + max_extra_stride, &mask_fmt); + pixman_image_set_repeat (mask_img, PIXMAN_REPEAT_NORMAL); + } +#if 0 /* using this crashes the test */ + if (lcg_rand_n (2)) + pixman_image_set_component_alpha (mask_img, 1); +#endif + } + + src_width = pixman_image_get_width (src_img); + src_height = pixman_image_get_height (src_img); + src_stride = pixman_image_get_stride (src_img); + dst_width = pixman_image_get_width (dst_img); + dst_height = pixman_image_get_height (dst_img); + dst_stride = pixman_image_get_stride (dst_img); + dstbuf = pixman_image_get_data (dst_img); + + src_x = lcg_rand_n (src_width); + src_y = lcg_rand_n (src_height); + dst_x = lcg_rand_n (dst_width); + dst_y = lcg_rand_n (dst_height); + w = lcg_rand_n (dst_width - dst_x + 1); + h = lcg_rand_n (dst_height - dst_y + 1); + + if (verbose) + { + printf ("op=%d, src_fmt=%08X, dst_fmt=%08X, mask_fmt=%08X\n", + op, src_fmt, dst_fmt, mask_fmt); + printf ("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n", + src_width, src_height, dst_width, dst_height); + printf ("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n", + src_x, src_y, dst_x, dst_y); + printf ("src_stride=%d, dst_stride=%d\n", + src_stride, dst_stride); + printf ("w=%d, h=%d\n", w, h); + } + + pixman_image_composite (op, src_img, mask_img, dst_img, + src_x, src_y, src_x, src_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"); + } + + free_random_image (initcrc, src_img, -1); + crc32 = free_random_image (initcrc, dst_img, dst_fmt); + if (mask_img) free_random_image (initcrc, mask_img, -1); + return crc32; +} + +int +main (int argc, char *argv[]) +{ + int i, n1 = 1, n2 = 0; + uint32_t crc = 0; + + if (argc >= 3) + { + n1 = atoi (argv[1]); + n2 = atoi (argv[2]); + } + else if (argc >= 2) + { + n2 = atoi (argv[1]); + } + else + { + n1 = 1; + n2 = 3000000; + } + + if (n2 < 0) + { + crc = test_composite (0, abs (n2), 1); + printf ("crc32=%08X\n", crc); + } + else + { + for (i = n1; i <= n2; i++) + { + crc = test_composite (crc, i, 0); + } + printf ("crc32=%08X\n", crc); + + if (n2 == 3000000) + { + /* Predefined value for running with all the fastpath functions + disabled. It needs to be updated every time when changes are + introduced to this program or behavior of pixman changes! */ + if (crc == 0x1A025829) + { + printf ("blitters test passed\n"); + } + else + { + printf ("blitters test failed!\n"); + return 1; + } + } + } + return 0; +} -- 2.7.4