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sw_engine avx: removing not portable variable type

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__m256i_u is an internal gcc/clang type, which can not be used by msvc.
To ensure the portability of the lib a proper intrinsic is used.
This commit is contained in:
Mira Grudzinska 2021-09-20 14:58:35 +02:00 • committed by Hermet Park
parent 90fa4fbe6d
commit 8ef928fcfc
1 changed files with 5 additions and 8 deletions
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13
src/lib/sw_engine/tvgSwRasterAvx.h
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@ -25,6 +25,7 @@
#include <immintrin.h>
#define N_32BITS_IN_128REG 4
#define N_32BITS_IN_256REG 8
static inline __m128i ALPHA_BLEND(__m128i c, __m128i a)
{
@ -64,23 +65,19 @@ static inline __m128i ALPHA_BLEND(__m128i c, __m128i a)
static inline void avxRasterRGBA32(uint32_t *dst, uint32_t val, uint32_t offset, int32_t len)
{
//1. calculate how many iterations we need to cover the length
uint32_t iterations = len / 8;
uint32_t avxFilled = iterations * 8;
uint32_t iterations = len / N_32BITS_IN_256REG;
uint32_t avxFilled = iterations * N_32BITS_IN_256REG;
//2. set the beginning of the array
dst += offset;
__m256i_u* avxDst = (__m256i_u*) dst;
//3. fill the octets
for (uint32_t i = 0; i < iterations; ++i) {
*avxDst = _mm256_set1_epi32(val);
avxDst++;
for (uint32_t i = 0; i < iterations; ++i, dst += N_32BITS_IN_256REG) {
_mm256_storeu_si256((__m256i*)dst, _mm256_set1_epi32(val));
}
//4. fill leftovers (in the first step we have to set the pointer to the place where the avx job is done)
int32_t leftovers = len - avxFilled;
dst += avxFilled;
while (leftovers--) *dst++ = val;
}