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#include "fmdsp/fmdsp.h"
#include <tmmintrin.h>
void fmdsp_vramlookup_ssse3(uint8_t *vram32, const uint8_t *vram, const uint8_t *palette, int stride) {
__m128i z = _mm_setzero_si128();
__m128i p[3];
{
union {
__m128i xmm;
uint8_t u8[16];
} pi[3];
for (int i = 0; i < FMDSP_PALETTE_COLORS; i++) {
for (int c = 0; c < 3; c++) {
pi[c].u8[i] = palette[i*3+c];
}
}
for (int c = 0; c < 3; c++) {
p[c] = _mm_load_si128(&pi[c].xmm);
}
}
for (int y = 0; y < PC98_H; y++) {
for (int x = 0; x < 40; x++) {
// 16 pixels
__m128i v = _mm_loadu_si128((__m128i *)&vram[y*PC98_W+x*16]);
__m128i r = _mm_shuffle_epi8(p[0], v);
__m128i g = _mm_shuffle_epi8(p[1], v);
__m128i b = _mm_shuffle_epi8(p[2], v);
__m128i gb[2], zr[2];
gb[0] = _mm_unpacklo_epi8(b, g);
gb[1] = _mm_unpackhi_epi8(b, g);
zr[0] = _mm_unpacklo_epi8(r, z);
zr[1] = _mm_unpackhi_epi8(r, z);
__m128i o[4];
o[0] = _mm_unpacklo_epi16(gb[0], zr[0]);
o[1] = _mm_unpackhi_epi16(gb[0], zr[0]);
o[2] = _mm_unpacklo_epi16(gb[1], zr[1]);
o[3] = _mm_unpackhi_epi16(gb[1], zr[1]);
for (int i = 0; i < 4; i++) {
_mm_storeu_si128((__m128i *)&vram32[(x*4+i)*16], o[i]);
}
}
vram32 += stride;
}
}
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