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sk_memcpy32 should fall back on libc memcpy.

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Writing it out ourselves was a ~2x slowdown on ARM.

BUG=skia:
R=henrik.smiding@intel.com, mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/292663013

git-svn-id: http://skia.googlecode.com/svn/trunk@14886 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
commit-bot@chromium.org 2014-05-27 12:45:42 +00:00
parent 53c63a5136
commit b0c769abe1
1 changed files with 1 additions and 27 deletions
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28
src/core/SkUtils.cpp
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@ -34,18 +34,6 @@
*(dst)++ = value; *(dst)++ = value; \ *(dst)++ = value; *(dst)++ = value; \
*(dst)++ = value; *(dst)++ = value; \ *(dst)++ = value; *(dst)++ = value; \
} while (0) } while (0)
#define copy_16_longs(dst, src) \
do { \
*(dst)++ = *(src)++; *(dst)++ = *(src)++; \
*(dst)++ = *(src)++; *(dst)++ = *(src)++; \
*(dst)++ = *(src)++; *(dst)++ = *(src)++; \
*(dst)++ = *(src)++; *(dst)++ = *(src)++; \
*(dst)++ = *(src)++; *(dst)++ = *(src)++; \
*(dst)++ = *(src)++; *(dst)++ = *(src)++; \
*(dst)++ = *(src)++; *(dst)++ = *(src)++; \
*(dst)++ = *(src)++; *(dst)++ = *(src)++; \
} while (0)
#endif #endif
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
@ -122,21 +110,7 @@ static void sk_memset32_portable(uint32_t dst[], uint32_t value, int count) {
} }
static void sk_memcpy32_portable(uint32_t dst[], const uint32_t src[], int count) { static void sk_memcpy32_portable(uint32_t dst[], const uint32_t src[], int count) {
SkASSERT(dst != NULL && count >= 0); memcpy(dst, src, count * sizeof(uint32_t));
int sixteenlongs = count >> 4;
if (sixteenlongs) {
do {
copy_16_longs(dst, src);
} while (--sixteenlongs != 0);
count &= 15;
}
if (count) {
do {
*dst++ = *src++;
} while (--count != 0);
}
} }
static void choose_memset16(SkMemset16Proc* proc) { static void choose_memset16(SkMemset16Proc* proc) {