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[common] rect/framebuffer: improve avx implementations

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This commit is contained in:
Geoffrey McRae
2023-11-19 15:45:15 +11:00
parent 0ce4c34c37
commit d3ee5bddde
3 changed files with 47 additions and 33 deletions
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40
common/src/framebuffer.c
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@@ -251,22 +251,20 @@ bool framebuffer_write_avx2(FrameBuffer * frame,
/* copy in chunks */
while (size > 127)
{
__m256i *_d = (__m256i *)d;
__m256i *_s = (__m256i *)s;
__m256i v1 = _mm256_stream_load_si256(_s + 0);
__m256i v2 = _mm256_stream_load_si256(_s + 1);
__m256i v3 = _mm256_stream_load_si256(_s + 2);
__m256i v4 = _mm256_stream_load_si256(_s + 3);
__m256i v1 = _mm256_stream_load_si256(s + 0);
__m256i v2 = _mm256_stream_load_si256(s + 1);
__m256i v3 = _mm256_stream_load_si256(s + 2);
__m256i v4 = _mm256_stream_load_si256(s + 3);
_mm256_stream_si256(_d + 0, v1);
_mm256_stream_si256(_d + 1, v2);
_mm256_stream_si256(_d + 2, v3);
_mm256_stream_si256(_d + 3, v4);
_mm256_stream_si256(d + 0, v1);
_mm256_stream_si256(d + 1, v2);
_mm256_stream_si256(d + 2, v3);
_mm256_stream_si256(d + 3, v4);
s += 4;
d += 4;
s += 4;
d += 4;
size -= 128;
wp += 128;
wp += 128;
if (wp % FB_CHUNK_SIZE == 0)
atomic_store_explicit(&frame->wp, wp, memory_order_release);
@@ -274,18 +272,16 @@ bool framebuffer_write_avx2(FrameBuffer * frame,
if (size > 63)
{
__m256i *_d = (__m256i *)d;
__m256i *_s = (__m256i *)s;
__m256i v1 = _mm256_stream_load_si256(_s);
__m256i v2 = _mm256_stream_load_si256(_s + 1);
__m256i v1 = _mm256_stream_load_si256(s);
__m256i v2 = _mm256_stream_load_si256(s + 1);
_mm256_stream_si256(_d, v1);
_mm256_stream_si256(_d + 1, v2);
_mm256_stream_si256(d, v1);
_mm256_stream_si256(d + 1, v2);
s += 2;
d += 2;
s += 2;
d += 2;
size -= 64;
wp += 64;
wp += 64;
if (wp % FB_CHUNK_SIZE == 0)
atomic_store_explicit(&frame->wp, wp, memory_order_release);