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vc4: Use the fnv1 hash function instead of gallium util's crc32. 

Improves simulated norast performance on a little benchmark by 13.4012%
+/- 2.08459% (n=13).
This commit is contained in:
Eric Anholt 2014-10-10 13:56:45 +02:00
parent d09509da2a
commit 070b2c2efc
1 changed files with 3 additions and 2 deletions
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5
src/gallium/drivers/vc4/vc4_program.c
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@ -31,6 +31,7 @@
#include "util/u_pack_color.h"
#include "util/format_srgb.h"
#include "util/ralloc.h"
#include "util/hash_table.h"
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_info.h"
#include "tgsi/tgsi_lowering.h"
@ -1886,13 +1887,13 @@ vc4_update_compiled_shaders(struct vc4_context *vc4, uint8_t prim_mode)
static unsigned
fs_cache_hash(void *key)
{
return util_hash_crc32(key, sizeof(struct vc4_fs_key));
return _mesa_hash_data(key, sizeof(struct vc4_fs_key));
}
static unsigned
vs_cache_hash(void *key)
{
return util_hash_crc32(key, sizeof(struct vc4_vs_key));
return _mesa_hash_data(key, sizeof(struct vc4_vs_key));
}
static int