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#include "utils.h"
#ifndef HAVE_PTHREADS
int main ()
{
printf ("Skipped thread-test - pthreads not supported\n");
return 0;
}
#else
#include <stdlib.h>
#include <pthread.h>
typedef struct
{
int thread_no;
uint32_t *dst_buf;
prng_t prng_state;
} info_t;
static const pixman_op_t operators[] =
{
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_MULTIPLY,
PIXMAN_OP_SCREEN,
PIXMAN_OP_OVERLAY,
PIXMAN_OP_DARKEN,
PIXMAN_OP_LIGHTEN,
PIXMAN_OP_HARD_LIGHT,
PIXMAN_OP_DIFFERENCE,
PIXMAN_OP_EXCLUSION,
};
static const pixman_format_code_t formats[] =
{
PIXMAN_a8r8g8b8,
PIXMAN_r5g6b5,
PIXMAN_a8,
PIXMAN_a4,
PIXMAN_a1,
PIXMAN_b5g6r5,
PIXMAN_r8g8b8a8,
PIXMAN_a4r4g4b4
};
#define N_ROUNDS 8192
#define RAND_ELT(arr) \
arr[prng_rand_r(&info->prng_state) % ARRAY_LENGTH (arr)]
#define DEST_WIDTH (7)
static void *
thread (void *data)
{
info_t *info = data;
uint32_t crc32 = 0x0;
uint32_t src_buf[64];
pixman_image_t *dst_img, *src_img;
int i;
prng_srand_r (&info->prng_state, info->thread_no);
for (i = 0; i < N_ROUNDS; ++i)
{
pixman_op_t op;
int rand1, rand2;
prng_randmemset_r (&info->prng_state, info->dst_buf,
DEST_WIDTH * sizeof (uint32_t), 0);
prng_randmemset_r (&info->prng_state, src_buf,
sizeof (src_buf), 0);
src_img = pixman_image_create_bits (
RAND_ELT (formats), 4, 4, src_buf, 16);
dst_img = pixman_image_create_bits (
RAND_ELT (formats), DEST_WIDTH, 1, info->dst_buf,
DEST_WIDTH * sizeof (uint32_t));
image_endian_swap (src_img);
image_endian_swap (dst_img);
rand2 = prng_rand_r (&info->prng_state) % 4;
rand1 = prng_rand_r (&info->prng_state) % 4;
op = RAND_ELT (operators);
pixman_image_composite32 (
op,
src_img, NULL, dst_img,
rand1, rand2, 0, 0, 0, 0, DEST_WIDTH, 1);
crc32 = compute_crc32_for_image (crc32, dst_img);
pixman_image_unref (src_img);
pixman_image_unref (dst_img);
}
return (void *)(uintptr_t)crc32;
}
static inline uint32_t
byteswap32 (uint32_t x)
{
return ((x & ((uint32_t)0xFF << 24)) >> 24) |
((x & ((uint32_t)0xFF << 16)) >> 8) |
((x & ((uint32_t)0xFF << 8)) << 8) |
((x & ((uint32_t)0xFF << 0)) << 24);
}
int
main (void)
{
uint32_t dest[16 * DEST_WIDTH];
info_t info[16] = { { 0 } };
pthread_t threads[16];
void *retvals[16];
uint32_t crc32s[16], crc32;
int i;
for (i = 0; i < 16; ++i)
{
info[i].thread_no = i;
info[i].dst_buf = &dest[i * DEST_WIDTH];
}
for (i = 0; i < 16; ++i)
pthread_create (&threads[i], NULL, thread, &info[i]);
for (i = 0; i < 16; ++i)
pthread_join (threads[i], &retvals[i]);
for (i = 0; i < 16; ++i)
{
crc32s[i] = (uintptr_t)retvals[i];
if (is_little_endian())
crc32s[i] = byteswap32 (crc32s[i]);
}
crc32 = compute_crc32 (0, crc32s, sizeof crc32s);
#define EXPECTED 0x82C4D9FB
if (crc32 != EXPECTED)
{
printf ("thread-test failed. Got checksum 0x%08X, expected 0x%08X\n",
crc32, EXPECTED);
return 1;
}
return 0;
}
#endif
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