ref: 1dcf3333fc7d0b0077aff23bf5278cbd45b9d74d
dir: /external/SDL2/src/video/yuv2rgb/yuv_rgb_sse_func.h/
// Copyright 2016 Adrien Descamps
// Distributed under BSD 3-Clause License
/* You need to define the following macros before including this file:
SSE_FUNCTION_NAME
STD_FUNCTION_NAME
YUV_FORMAT
RGB_FORMAT
*/
/* You may define the following macro, which affects generated code:
SSE_ALIGNED
*/
#ifdef SSE_ALIGNED
/* Unaligned instructions seem faster, even on aligned data? */
/*
#define LOAD_SI128 _mm_load_si128
#define SAVE_SI128 _mm_stream_si128
*/
#define LOAD_SI128 _mm_loadu_si128
#define SAVE_SI128 _mm_storeu_si128
#else
#define LOAD_SI128 _mm_loadu_si128
#define SAVE_SI128 _mm_storeu_si128
#endif
#define UV2RGB_16(U,V,R1,G1,B1,R2,G2,B2) \
r_tmp = _mm_mullo_epi16(V, _mm_set1_epi16(param->v_r_factor)); \
g_tmp = _mm_add_epi16( \
_mm_mullo_epi16(U, _mm_set1_epi16(param->u_g_factor)), \
_mm_mullo_epi16(V, _mm_set1_epi16(param->v_g_factor))); \
b_tmp = _mm_mullo_epi16(U, _mm_set1_epi16(param->u_b_factor)); \
R1 = _mm_unpacklo_epi16(r_tmp, r_tmp); \
G1 = _mm_unpacklo_epi16(g_tmp, g_tmp); \
B1 = _mm_unpacklo_epi16(b_tmp, b_tmp); \
R2 = _mm_unpackhi_epi16(r_tmp, r_tmp); \
G2 = _mm_unpackhi_epi16(g_tmp, g_tmp); \
B2 = _mm_unpackhi_epi16(b_tmp, b_tmp); \
#define ADD_Y2RGB_16(Y1,Y2,R1,G1,B1,R2,G2,B2) \
Y1 = _mm_mullo_epi16(_mm_sub_epi16(Y1, _mm_set1_epi16(param->y_shift)), _mm_set1_epi16(param->y_factor)); \
Y2 = _mm_mullo_epi16(_mm_sub_epi16(Y2, _mm_set1_epi16(param->y_shift)), _mm_set1_epi16(param->y_factor)); \
\
R1 = _mm_srai_epi16(_mm_add_epi16(R1, Y1), PRECISION); \
G1 = _mm_srai_epi16(_mm_add_epi16(G1, Y1), PRECISION); \
B1 = _mm_srai_epi16(_mm_add_epi16(B1, Y1), PRECISION); \
R2 = _mm_srai_epi16(_mm_add_epi16(R2, Y2), PRECISION); \
G2 = _mm_srai_epi16(_mm_add_epi16(G2, Y2), PRECISION); \
B2 = _mm_srai_epi16(_mm_add_epi16(B2, Y2), PRECISION); \
#define PACK_RGB565_32(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4) \
{ \
__m128i red_mask, tmp1, tmp2, tmp3, tmp4; \
\
red_mask = _mm_set1_epi16((short)0xF800); \
RGB1 = _mm_and_si128(_mm_unpacklo_epi8(_mm_setzero_si128(), R1), red_mask); \
RGB2 = _mm_and_si128(_mm_unpackhi_epi8(_mm_setzero_si128(), R1), red_mask); \
RGB3 = _mm_and_si128(_mm_unpacklo_epi8(_mm_setzero_si128(), R2), red_mask); \
RGB4 = _mm_and_si128(_mm_unpackhi_epi8(_mm_setzero_si128(), R2), red_mask); \
tmp1 = _mm_slli_epi16(_mm_srli_epi16(_mm_unpacklo_epi8(G1, _mm_setzero_si128()), 2), 5); \
tmp2 = _mm_slli_epi16(_mm_srli_epi16(_mm_unpackhi_epi8(G1, _mm_setzero_si128()), 2), 5); \
tmp3 = _mm_slli_epi16(_mm_srli_epi16(_mm_unpacklo_epi8(G2, _mm_setzero_si128()), 2), 5); \
tmp4 = _mm_slli_epi16(_mm_srli_epi16(_mm_unpackhi_epi8(G2, _mm_setzero_si128()), 2), 5); \
RGB1 = _mm_or_si128(RGB1, tmp1); \
RGB2 = _mm_or_si128(RGB2, tmp2); \
RGB3 = _mm_or_si128(RGB3, tmp3); \
RGB4 = _mm_or_si128(RGB4, tmp4); \
tmp1 = _mm_srli_epi16(_mm_unpacklo_epi8(B1, _mm_setzero_si128()), 3); \
tmp2 = _mm_srli_epi16(_mm_unpackhi_epi8(B1, _mm_setzero_si128()), 3); \
tmp3 = _mm_srli_epi16(_mm_unpacklo_epi8(B2, _mm_setzero_si128()), 3); \
tmp4 = _mm_srli_epi16(_mm_unpackhi_epi8(B2, _mm_setzero_si128()), 3); \
RGB1 = _mm_or_si128(RGB1, tmp1); \
RGB2 = _mm_or_si128(RGB2, tmp2); \
RGB3 = _mm_or_si128(RGB3, tmp3); \
RGB4 = _mm_or_si128(RGB4, tmp4); \
}
#define PACK_RGB24_32_STEP1(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6) \
RGB1 = _mm_packus_epi16(_mm_and_si128(R1,_mm_set1_epi16(0xFF)), _mm_and_si128(R2,_mm_set1_epi16(0xFF))); \
RGB2 = _mm_packus_epi16(_mm_and_si128(G1,_mm_set1_epi16(0xFF)), _mm_and_si128(G2,_mm_set1_epi16(0xFF))); \
RGB3 = _mm_packus_epi16(_mm_and_si128(B1,_mm_set1_epi16(0xFF)), _mm_and_si128(B2,_mm_set1_epi16(0xFF))); \
RGB4 = _mm_packus_epi16(_mm_srli_epi16(R1,8), _mm_srli_epi16(R2,8)); \
RGB5 = _mm_packus_epi16(_mm_srli_epi16(G1,8), _mm_srli_epi16(G2,8)); \
RGB6 = _mm_packus_epi16(_mm_srli_epi16(B1,8), _mm_srli_epi16(B2,8)); \
#define PACK_RGB24_32_STEP2(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6) \
R1 = _mm_packus_epi16(_mm_and_si128(RGB1,_mm_set1_epi16(0xFF)), _mm_and_si128(RGB2,_mm_set1_epi16(0xFF))); \
R2 = _mm_packus_epi16(_mm_and_si128(RGB3,_mm_set1_epi16(0xFF)), _mm_and_si128(RGB4,_mm_set1_epi16(0xFF))); \
G1 = _mm_packus_epi16(_mm_and_si128(RGB5,_mm_set1_epi16(0xFF)), _mm_and_si128(RGB6,_mm_set1_epi16(0xFF))); \
G2 = _mm_packus_epi16(_mm_srli_epi16(RGB1,8), _mm_srli_epi16(RGB2,8)); \
B1 = _mm_packus_epi16(_mm_srli_epi16(RGB3,8), _mm_srli_epi16(RGB4,8)); \
B2 = _mm_packus_epi16(_mm_srli_epi16(RGB5,8), _mm_srli_epi16(RGB6,8)); \
#define PACK_RGB24_32(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6) \
PACK_RGB24_32_STEP1(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6) \
PACK_RGB24_32_STEP2(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6) \
PACK_RGB24_32_STEP1(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6) \
PACK_RGB24_32_STEP2(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6) \
PACK_RGB24_32_STEP1(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6) \
#define PACK_RGBA_32(R1, R2, G1, G2, B1, B2, A1, A2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6, RGB7, RGB8) \
{ \
__m128i lo_ab, hi_ab, lo_gr, hi_gr; \
\
lo_ab = _mm_unpacklo_epi8( A1, B1 ); \
hi_ab = _mm_unpackhi_epi8( A1, B1 ); \
lo_gr = _mm_unpacklo_epi8( G1, R1 ); \
hi_gr = _mm_unpackhi_epi8( G1, R1 ); \
RGB1 = _mm_unpacklo_epi16( lo_ab, lo_gr ); \
RGB2 = _mm_unpackhi_epi16( lo_ab, lo_gr ); \
RGB3 = _mm_unpacklo_epi16( hi_ab, hi_gr ); \
RGB4 = _mm_unpackhi_epi16( hi_ab, hi_gr ); \
\
lo_ab = _mm_unpacklo_epi8( A2, B2 ); \
hi_ab = _mm_unpackhi_epi8( A2, B2 ); \
lo_gr = _mm_unpacklo_epi8( G2, R2 ); \
hi_gr = _mm_unpackhi_epi8( G2, R2 ); \
RGB5 = _mm_unpacklo_epi16( lo_ab, lo_gr ); \
RGB6 = _mm_unpackhi_epi16( lo_ab, lo_gr ); \
RGB7 = _mm_unpacklo_epi16( hi_ab, hi_gr ); \
RGB8 = _mm_unpackhi_epi16( hi_ab, hi_gr ); \
}
#if RGB_FORMAT == RGB_FORMAT_RGB565
#define PACK_PIXEL \
__m128i rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6, rgb_7, rgb_8; \
\
PACK_RGB565_32(r_8_11, r_8_12, g_8_11, g_8_12, b_8_11, b_8_12, rgb_1, rgb_2, rgb_3, rgb_4) \
\
PACK_RGB565_32(r_8_21, r_8_22, g_8_21, g_8_22, b_8_21, b_8_22, rgb_5, rgb_6, rgb_7, rgb_8) \
#elif RGB_FORMAT == RGB_FORMAT_RGB24
#define PACK_PIXEL \
__m128i rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6; \
__m128i rgb_7, rgb_8, rgb_9, rgb_10, rgb_11, rgb_12; \
\
PACK_RGB24_32(r_8_11, r_8_12, g_8_11, g_8_12, b_8_11, b_8_12, rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6) \
\
PACK_RGB24_32(r_8_21, r_8_22, g_8_21, g_8_22, b_8_21, b_8_22, rgb_7, rgb_8, rgb_9, rgb_10, rgb_11, rgb_12) \
#elif RGB_FORMAT == RGB_FORMAT_RGBA
#define PACK_PIXEL \
__m128i rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6, rgb_7, rgb_8; \
__m128i rgb_9, rgb_10, rgb_11, rgb_12, rgb_13, rgb_14, rgb_15, rgb_16; \
__m128i a = _mm_set1_epi8((char)0xFF); \
\
PACK_RGBA_32(r_8_11, r_8_12, g_8_11, g_8_12, b_8_11, b_8_12, a, a, rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6, rgb_7, rgb_8) \
\
PACK_RGBA_32(r_8_21, r_8_22, g_8_21, g_8_22, b_8_21, b_8_22, a, a, rgb_9, rgb_10, rgb_11, rgb_12, rgb_13, rgb_14, rgb_15, rgb_16) \
#elif RGB_FORMAT == RGB_FORMAT_BGRA
#define PACK_PIXEL \
__m128i rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6, rgb_7, rgb_8; \
__m128i rgb_9, rgb_10, rgb_11, rgb_12, rgb_13, rgb_14, rgb_15, rgb_16; \
__m128i a = _mm_set1_epi8((char)0xFF); \
\
PACK_RGBA_32(b_8_11, b_8_12, g_8_11, g_8_12, r_8_11, r_8_12, a, a, rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6, rgb_7, rgb_8) \
\
PACK_RGBA_32(b_8_21, b_8_22, g_8_21, g_8_22, r_8_21, r_8_22, a, a, rgb_9, rgb_10, rgb_11, rgb_12, rgb_13, rgb_14, rgb_15, rgb_16) \
#elif RGB_FORMAT == RGB_FORMAT_ARGB
#define PACK_PIXEL \
__m128i rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6, rgb_7, rgb_8; \
__m128i rgb_9, rgb_10, rgb_11, rgb_12, rgb_13, rgb_14, rgb_15, rgb_16; \
__m128i a = _mm_set1_epi8((char)0xFF); \
\
PACK_RGBA_32(a, a, r_8_11, r_8_12, g_8_11, g_8_12, b_8_11, b_8_12, rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6, rgb_7, rgb_8) \
\
PACK_RGBA_32(a, a, r_8_21, r_8_22, g_8_21, g_8_22, b_8_21, b_8_22, rgb_9, rgb_10, rgb_11, rgb_12, rgb_13, rgb_14, rgb_15, rgb_16) \
#elif RGB_FORMAT == RGB_FORMAT_ABGR
#define PACK_PIXEL \
__m128i rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6, rgb_7, rgb_8; \
__m128i rgb_9, rgb_10, rgb_11, rgb_12, rgb_13, rgb_14, rgb_15, rgb_16; \
__m128i a = _mm_set1_epi8((char)0xFF); \
\
PACK_RGBA_32(a, a, b_8_11, b_8_12, g_8_11, g_8_12, r_8_11, r_8_12, rgb_1, rgb_2, rgb_3, rgb_4, rgb_5, rgb_6, rgb_7, rgb_8) \
\
PACK_RGBA_32(a, a, b_8_21, b_8_22, g_8_21, g_8_22, r_8_21, r_8_22, rgb_9, rgb_10, rgb_11, rgb_12, rgb_13, rgb_14, rgb_15, rgb_16) \
#else
#error PACK_PIXEL unimplemented
#endif
#if RGB_FORMAT == RGB_FORMAT_RGB565
#define SAVE_LINE1 \
SAVE_SI128((__m128i*)(rgb_ptr1), rgb_1); \
SAVE_SI128((__m128i*)(rgb_ptr1+16), rgb_2); \
SAVE_SI128((__m128i*)(rgb_ptr1+32), rgb_3); \
SAVE_SI128((__m128i*)(rgb_ptr1+48), rgb_4); \
#define SAVE_LINE2 \
SAVE_SI128((__m128i*)(rgb_ptr2), rgb_5); \
SAVE_SI128((__m128i*)(rgb_ptr2+16), rgb_6); \
SAVE_SI128((__m128i*)(rgb_ptr2+32), rgb_7); \
SAVE_SI128((__m128i*)(rgb_ptr2+48), rgb_8); \
#elif RGB_FORMAT == RGB_FORMAT_RGB24
#define SAVE_LINE1 \
SAVE_SI128((__m128i*)(rgb_ptr1), rgb_1); \
SAVE_SI128((__m128i*)(rgb_ptr1+16), rgb_2); \
SAVE_SI128((__m128i*)(rgb_ptr1+32), rgb_3); \
SAVE_SI128((__m128i*)(rgb_ptr1+48), rgb_4); \
SAVE_SI128((__m128i*)(rgb_ptr1+64), rgb_5); \
SAVE_SI128((__m128i*)(rgb_ptr1+80), rgb_6); \
#define SAVE_LINE2 \
SAVE_SI128((__m128i*)(rgb_ptr2), rgb_7); \
SAVE_SI128((__m128i*)(rgb_ptr2+16), rgb_8); \
SAVE_SI128((__m128i*)(rgb_ptr2+32), rgb_9); \
SAVE_SI128((__m128i*)(rgb_ptr2+48), rgb_10); \
SAVE_SI128((__m128i*)(rgb_ptr2+64), rgb_11); \
SAVE_SI128((__m128i*)(rgb_ptr2+80), rgb_12); \
#elif RGB_FORMAT == RGB_FORMAT_RGBA || RGB_FORMAT == RGB_FORMAT_BGRA || \
RGB_FORMAT == RGB_FORMAT_ARGB || RGB_FORMAT == RGB_FORMAT_ABGR
#define SAVE_LINE1 \
SAVE_SI128((__m128i*)(rgb_ptr1), rgb_1); \
SAVE_SI128((__m128i*)(rgb_ptr1+16), rgb_2); \
SAVE_SI128((__m128i*)(rgb_ptr1+32), rgb_3); \
SAVE_SI128((__m128i*)(rgb_ptr1+48), rgb_4); \
SAVE_SI128((__m128i*)(rgb_ptr1+64), rgb_5); \
SAVE_SI128((__m128i*)(rgb_ptr1+80), rgb_6); \
SAVE_SI128((__m128i*)(rgb_ptr1+96), rgb_7); \
SAVE_SI128((__m128i*)(rgb_ptr1+112), rgb_8); \
#define SAVE_LINE2 \
SAVE_SI128((__m128i*)(rgb_ptr2), rgb_9); \
SAVE_SI128((__m128i*)(rgb_ptr2+16), rgb_10); \
SAVE_SI128((__m128i*)(rgb_ptr2+32), rgb_11); \
SAVE_SI128((__m128i*)(rgb_ptr2+48), rgb_12); \
SAVE_SI128((__m128i*)(rgb_ptr2+64), rgb_13); \
SAVE_SI128((__m128i*)(rgb_ptr2+80), rgb_14); \
SAVE_SI128((__m128i*)(rgb_ptr2+96), rgb_15); \
SAVE_SI128((__m128i*)(rgb_ptr2+112), rgb_16); \
#else
#error SAVE_LINE unimplemented
#endif
#if YUV_FORMAT == YUV_FORMAT_420
#define READ_Y(y_ptr) \
y = LOAD_SI128((const __m128i*)(y_ptr)); \
#define READ_UV \
u = LOAD_SI128((const __m128i*)(u_ptr)); \
v = LOAD_SI128((const __m128i*)(v_ptr)); \
#elif YUV_FORMAT == YUV_FORMAT_422
#define READ_Y(y_ptr) \
{ \
__m128i y1, y2; \
y1 = _mm_srli_epi16(_mm_slli_epi16(LOAD_SI128((const __m128i*)(y_ptr)), 8), 8); \
y2 = _mm_srli_epi16(_mm_slli_epi16(LOAD_SI128((const __m128i*)(y_ptr+16)), 8), 8); \
y = _mm_packus_epi16(y1, y2); \
}
#define READ_UV \
{ \
__m128i u1, u2, u3, u4, v1, v2, v3, v4; \
u1 = _mm_srli_epi32(_mm_slli_epi32(LOAD_SI128((const __m128i*)(u_ptr)), 24), 24); \
u2 = _mm_srli_epi32(_mm_slli_epi32(LOAD_SI128((const __m128i*)(u_ptr+16)), 24), 24); \
u3 = _mm_srli_epi32(_mm_slli_epi32(LOAD_SI128((const __m128i*)(u_ptr+32)), 24), 24); \
u4 = _mm_srli_epi32(_mm_slli_epi32(LOAD_SI128((const __m128i*)(u_ptr+48)), 24), 24); \
u = _mm_packus_epi16(_mm_packs_epi32(u1, u2), _mm_packs_epi32(u3, u4)); \
v1 = _mm_srli_epi32(_mm_slli_epi32(LOAD_SI128((const __m128i*)(v_ptr)), 24), 24); \
v2 = _mm_srli_epi32(_mm_slli_epi32(LOAD_SI128((const __m128i*)(v_ptr+16)), 24), 24); \
v3 = _mm_srli_epi32(_mm_slli_epi32(LOAD_SI128((const __m128i*)(v_ptr+32)), 24), 24); \
v4 = _mm_srli_epi32(_mm_slli_epi32(LOAD_SI128((const __m128i*)(v_ptr+48)), 24), 24); \
v = _mm_packus_epi16(_mm_packs_epi32(v1, v2), _mm_packs_epi32(v3, v4)); \
}
#elif YUV_FORMAT == YUV_FORMAT_NV12
#define READ_Y(y_ptr) \
y = LOAD_SI128((const __m128i*)(y_ptr)); \
#define READ_UV \
{ \
__m128i u1, u2, v1, v2; \
u1 = _mm_srli_epi16(_mm_slli_epi16(LOAD_SI128((const __m128i*)(u_ptr)), 8), 8); \
u2 = _mm_srli_epi16(_mm_slli_epi16(LOAD_SI128((const __m128i*)(u_ptr+16)), 8), 8); \
u = _mm_packus_epi16(u1, u2); \
v1 = _mm_srli_epi16(_mm_slli_epi16(LOAD_SI128((const __m128i*)(v_ptr)), 8), 8); \
v2 = _mm_srli_epi16(_mm_slli_epi16(LOAD_SI128((const __m128i*)(v_ptr+16)), 8), 8); \
v = _mm_packus_epi16(v1, v2); \
}
#else
#error READ_UV unimplemented
#endif
#define YUV2RGB_32 \
__m128i r_tmp, g_tmp, b_tmp; \
__m128i r_16_1, g_16_1, b_16_1, r_16_2, g_16_2, b_16_2; \
__m128i r_uv_16_1, g_uv_16_1, b_uv_16_1, r_uv_16_2, g_uv_16_2, b_uv_16_2; \
__m128i y_16_1, y_16_2; \
__m128i y, u, v, u_16, v_16; \
__m128i r_8_11, g_8_11, b_8_11, r_8_21, g_8_21, b_8_21; \
__m128i r_8_12, g_8_12, b_8_12, r_8_22, g_8_22, b_8_22; \
\
READ_UV \
\
/* process first 16 pixels of first line */\
u_16 = _mm_unpacklo_epi8(u, _mm_setzero_si128()); \
v_16 = _mm_unpacklo_epi8(v, _mm_setzero_si128()); \
u_16 = _mm_add_epi16(u_16, _mm_set1_epi16(-128)); \
v_16 = _mm_add_epi16(v_16, _mm_set1_epi16(-128)); \
\
UV2RGB_16(u_16, v_16, r_16_1, g_16_1, b_16_1, r_16_2, g_16_2, b_16_2) \
r_uv_16_1=r_16_1; g_uv_16_1=g_16_1; b_uv_16_1=b_16_1; \
r_uv_16_2=r_16_2; g_uv_16_2=g_16_2; b_uv_16_2=b_16_2; \
\
READ_Y(y_ptr1) \
y_16_1 = _mm_unpacklo_epi8(y, _mm_setzero_si128()); \
y_16_2 = _mm_unpackhi_epi8(y, _mm_setzero_si128()); \
\
ADD_Y2RGB_16(y_16_1, y_16_2, r_16_1, g_16_1, b_16_1, r_16_2, g_16_2, b_16_2) \
\
r_8_11 = _mm_packus_epi16(r_16_1, r_16_2); \
g_8_11 = _mm_packus_epi16(g_16_1, g_16_2); \
b_8_11 = _mm_packus_epi16(b_16_1, b_16_2); \
\
/* process first 16 pixels of second line */\
r_16_1=r_uv_16_1; g_16_1=g_uv_16_1; b_16_1=b_uv_16_1; \
r_16_2=r_uv_16_2; g_16_2=g_uv_16_2; b_16_2=b_uv_16_2; \
\
READ_Y(y_ptr2) \
y_16_1 = _mm_unpacklo_epi8(y, _mm_setzero_si128()); \
y_16_2 = _mm_unpackhi_epi8(y, _mm_setzero_si128()); \
\
ADD_Y2RGB_16(y_16_1, y_16_2, r_16_1, g_16_1, b_16_1, r_16_2, g_16_2, b_16_2) \
\
r_8_21 = _mm_packus_epi16(r_16_1, r_16_2); \
g_8_21 = _mm_packus_epi16(g_16_1, g_16_2); \
b_8_21 = _mm_packus_epi16(b_16_1, b_16_2); \
\
/* process last 16 pixels of first line */\
u_16 = _mm_unpackhi_epi8(u, _mm_setzero_si128()); \
v_16 = _mm_unpackhi_epi8(v, _mm_setzero_si128()); \
u_16 = _mm_add_epi16(u_16, _mm_set1_epi16(-128)); \
v_16 = _mm_add_epi16(v_16, _mm_set1_epi16(-128)); \
\
UV2RGB_16(u_16, v_16, r_16_1, g_16_1, b_16_1, r_16_2, g_16_2, b_16_2) \
r_uv_16_1=r_16_1; g_uv_16_1=g_16_1; b_uv_16_1=b_16_1; \
r_uv_16_2=r_16_2; g_uv_16_2=g_16_2; b_uv_16_2=b_16_2; \
\
READ_Y(y_ptr1+16*y_pixel_stride) \
y_16_1 = _mm_unpacklo_epi8(y, _mm_setzero_si128()); \
y_16_2 = _mm_unpackhi_epi8(y, _mm_setzero_si128()); \
\
ADD_Y2RGB_16(y_16_1, y_16_2, r_16_1, g_16_1, b_16_1, r_16_2, g_16_2, b_16_2) \
\
r_8_12 = _mm_packus_epi16(r_16_1, r_16_2); \
g_8_12 = _mm_packus_epi16(g_16_1, g_16_2); \
b_8_12 = _mm_packus_epi16(b_16_1, b_16_2); \
\
/* process last 16 pixels of second line */\
r_16_1=r_uv_16_1; g_16_1=g_uv_16_1; b_16_1=b_uv_16_1; \
r_16_2=r_uv_16_2; g_16_2=g_uv_16_2; b_16_2=b_uv_16_2; \
\
READ_Y(y_ptr2+16*y_pixel_stride) \
y_16_1 = _mm_unpacklo_epi8(y, _mm_setzero_si128()); \
y_16_2 = _mm_unpackhi_epi8(y, _mm_setzero_si128()); \
\
ADD_Y2RGB_16(y_16_1, y_16_2, r_16_1, g_16_1, b_16_1, r_16_2, g_16_2, b_16_2) \
\
r_8_22 = _mm_packus_epi16(r_16_1, r_16_2); \
g_8_22 = _mm_packus_epi16(g_16_1, g_16_2); \
b_8_22 = _mm_packus_epi16(b_16_1, b_16_2); \
\
void SSE_FUNCTION_NAME(uint32_t width, uint32_t height,
const uint8_t *Y, const uint8_t *U, const uint8_t *V, uint32_t Y_stride, uint32_t UV_stride,
uint8_t *RGB, uint32_t RGB_stride,
YCbCrType yuv_type)
{
const YUV2RGBParam *const param = &(YUV2RGB[yuv_type]);
#if YUV_FORMAT == YUV_FORMAT_420
const int y_pixel_stride = 1;
const int uv_pixel_stride = 1;
const int uv_x_sample_interval = 2;
const int uv_y_sample_interval = 2;
#elif YUV_FORMAT == YUV_FORMAT_422
const int y_pixel_stride = 2;
const int uv_pixel_stride = 4;
const int uv_x_sample_interval = 2;
const int uv_y_sample_interval = 1;
#elif YUV_FORMAT == YUV_FORMAT_NV12
const int y_pixel_stride = 1;
const int uv_pixel_stride = 2;
const int uv_x_sample_interval = 2;
const int uv_y_sample_interval = 2;
#endif
#if RGB_FORMAT == RGB_FORMAT_RGB565
const int rgb_pixel_stride = 2;
#elif RGB_FORMAT == RGB_FORMAT_RGB24
const int rgb_pixel_stride = 3;
#elif RGB_FORMAT == RGB_FORMAT_RGBA || RGB_FORMAT == RGB_FORMAT_BGRA || \
RGB_FORMAT == RGB_FORMAT_ARGB || RGB_FORMAT == RGB_FORMAT_ABGR
const int rgb_pixel_stride = 4;
#else
#error Unknown RGB pixel size
#endif
if (width >= 32) {
uint32_t xpos, ypos;
for(ypos=0; ypos<(height-(uv_y_sample_interval-1)); ypos+=uv_y_sample_interval)
{
const uint8_t *y_ptr1=Y+ypos*Y_stride,
*y_ptr2=Y+(ypos+1)*Y_stride,
*u_ptr=U+(ypos/uv_y_sample_interval)*UV_stride,
*v_ptr=V+(ypos/uv_y_sample_interval)*UV_stride;
uint8_t *rgb_ptr1=RGB+ypos*RGB_stride,
*rgb_ptr2=RGB+(ypos+1)*RGB_stride;
for(xpos=0; xpos<(width-31); xpos+=32)
{
YUV2RGB_32
{
PACK_PIXEL
SAVE_LINE1
if (uv_y_sample_interval > 1)
{
SAVE_LINE2
}
}
y_ptr1+=32*y_pixel_stride;
y_ptr2+=32*y_pixel_stride;
u_ptr+=32*uv_pixel_stride/uv_x_sample_interval;
v_ptr+=32*uv_pixel_stride/uv_x_sample_interval;
rgb_ptr1+=32*rgb_pixel_stride;
rgb_ptr2+=32*rgb_pixel_stride;
}
}
/* Catch the last line, if needed */
if (uv_y_sample_interval == 2 && ypos == (height-1))
{
const uint8_t *y_ptr=Y+ypos*Y_stride,
*u_ptr=U+(ypos/uv_y_sample_interval)*UV_stride,
*v_ptr=V+(ypos/uv_y_sample_interval)*UV_stride;
uint8_t *rgb_ptr=RGB+ypos*RGB_stride;
STD_FUNCTION_NAME(width, 1, y_ptr, u_ptr, v_ptr, Y_stride, UV_stride, rgb_ptr, RGB_stride, yuv_type);
}
}
/* Catch the right column, if needed */
{
int converted = (width & ~31);
if (converted != width)
{
const uint8_t *y_ptr=Y+converted*y_pixel_stride,
*u_ptr=U+converted*uv_pixel_stride/uv_x_sample_interval,
*v_ptr=V+converted*uv_pixel_stride/uv_x_sample_interval;
uint8_t *rgb_ptr=RGB+converted*rgb_pixel_stride;
STD_FUNCTION_NAME(width-converted, height, y_ptr, u_ptr, v_ptr, Y_stride, UV_stride, rgb_ptr, RGB_stride, yuv_type);
}
}
}
#undef SSE_FUNCTION_NAME
#undef STD_FUNCTION_NAME
#undef YUV_FORMAT
#undef RGB_FORMAT
#undef SSE_ALIGNED
#undef LOAD_SI128
#undef SAVE_SI128
#undef UV2RGB_16
#undef ADD_Y2RGB_16
#undef PACK_RGB24_32_STEP1
#undef PACK_RGB24_32_STEP2
#undef PACK_RGB24_32
#undef PACK_RGBA_32
#undef PACK_PIXEL
#undef SAVE_LINE1
#undef SAVE_LINE2
#undef READ_Y
#undef READ_UV
#undef YUV2RGB_32