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// Copyright 2016 Adrien Descamps
// // Distributed under BSD 3-Clause License
#include <lsxintrin.h>
#if YUV_FORMAT == YUV_FORMAT_420
#define READ_Y(y_ptr) \
y = __lsx_vld(y_ptr, 0); \
#define READ_UV \
u_temp = __lsx_vld(u_ptr, 0); \
v_temp = __lsx_vld(v_ptr, 0); \
#else
#error READ_UV unimplemented
#endif
#define PACK_RGBA_32(R1, R2, G1, G2, B1, B2, A1, A2, RGB1, RGB2, \
RGB3, RGB4, RGB5, RGB6, RGB7, RGB8) \
{ \
__m128i ab_l, ab_h, gr_l, gr_h; \
ab_l = __lsx_vilvl_b(B1, A1); \
ab_h = __lsx_vilvh_b(B1, A1); \
gr_l = __lsx_vilvl_b(R1, G1); \
gr_h = __lsx_vilvh_b(R1, G1); \
RGB1 = __lsx_vilvl_h(gr_l, ab_l); \
RGB2 = __lsx_vilvh_h(gr_l, ab_l); \
RGB3 = __lsx_vilvl_h(gr_h, ab_h); \
RGB4 = __lsx_vilvh_h(gr_h, ab_h); \
ab_l = __lsx_vilvl_b(B2, A2); \
ab_h = __lsx_vilvh_b(B2, A2); \
gr_l = __lsx_vilvl_b(R2, G2); \
gr_h = __lsx_vilvh_b(R2, G2); \
RGB5 = __lsx_vilvl_h(gr_l, ab_l); \
RGB6 = __lsx_vilvh_h(gr_l, ab_l); \
RGB7 = __lsx_vilvl_h(gr_h, ab_h); \
RGB8 = __lsx_vilvh_h(gr_h, ab_h); \
}
#define PACK_RGB24_32_STEP(R, G, B, RGB1, RGB2, RGB3) \
RGB1 = __lsx_vilvl_b(G, R); \
RGB1 = __lsx_vshuf_b(B, RGB1, mask1); \
RGB2 = __lsx_vshuf_b(B, G, mask2); \
RGB2 = __lsx_vshuf_b(R, RGB2, mask3); \
RGB3 = __lsx_vshuf_b(R, B, mask4); \
RGB3 = __lsx_vshuf_b(G, RGB3, mask5); \
#define PACK_RGB24_32(R1, R2, G1, G2, B1, B2, RGB1, RGB2, RGB3, RGB4, RGB5, RGB6) \
PACK_RGB24_32_STEP(R1, G1, B1, RGB1, RGB2, RGB3); \
PACK_RGB24_32_STEP(R2, G2, B2, RGB4, RGB5, RGB6); \
#if 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 = __lsx_vldi(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 = __lsx_vldi(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 = __lsx_vldi(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 = __lsx_vldi(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
#define LSX_ST_UB2(in0, in1, pdst, stride) \
{ \
__lsx_vst(in0, pdst, 0); \
__lsx_vst(in1, pdst + stride, 0); \
}
#if RGB_FORMAT == RGB_FORMAT_RGB24 \
#define SAVE_LINE1 \
LSX_ST_UB2(rgb_1, rgb_2, rgb_ptr1, 16); \
LSX_ST_UB2(rgb_3, rgb_4, rgb_ptr1 + 32, 16); \
LSX_ST_UB2(rgb_5, rgb_6, rgb_ptr1 + 64, 16); \
#define SAVE_LINE2 \
LSX_ST_UB2(rgb_7, rgb_8, rgb_ptr2, 16); \
LSX_ST_UB2(rgb_9, rgb_10, rgb_ptr2 + 32, 16); \
LSX_ST_UB2(rgb_11, rgb_12, rgb_ptr2 + 64, 16); \
#elif RGB_FORMAT == RGB_FORMAT_RGBA || RGB_FORMAT == RGB_FORMAT_BGRA || \
RGB_FORMAT == RGB_FORMAT_ARGB || RGB_FORMAT == RGB_FORMAT_ABGR \
#define SAVE_LINE1 \
LSX_ST_UB2(rgb_1, rgb_2, rgb_ptr1, 16); \
LSX_ST_UB2(rgb_3, rgb_4, rgb_ptr1 + 32, 16); \
LSX_ST_UB2(rgb_5, rgb_6, rgb_ptr1 + 64, 16); \
LSX_ST_UB2(rgb_7, rgb_8, rgb_ptr1 + 96, 16); \
#define SAVE_LINE2 \
LSX_ST_UB2(rgb_9, rgb_10, rgb_ptr2, 16); \
LSX_ST_UB2(rgb_11, rgb_12, rgb_ptr2 + 32, 16); \
LSX_ST_UB2(rgb_13, rgb_14, rgb_ptr2 + 64, 16); \
LSX_ST_UB2(rgb_15, rgb_16, rgb_ptr2 + 96, 16); \
#else
#error SAVE_LINE unimplemented
#endif
// = u*vr g=u*ug+v*vg b=u*ub
#define UV2RGB_16(U, V, R1, G1, B1, R2, G2, B2) \
r_temp = __lsx_vmul_h(V, v2r); \
g_temp = __lsx_vmul_h(U, u2g); \
g_temp = __lsx_vmadd_h(g_temp, V, v2g); \
b_temp = __lsx_vmul_h(U, u2b); \
R1 = __lsx_vilvl_h(r_temp, r_temp); \
G1 = __lsx_vilvl_h(g_temp, g_temp); \
B1 = __lsx_vilvl_h(b_temp, b_temp); \
R2 = __lsx_vilvh_h(r_temp, r_temp); \
G2 = __lsx_vilvh_h(g_temp, g_temp); \
B2 = __lsx_vilvh_h(b_temp, b_temp); \
// Y=(Y-shift)*shift R=(Y+R)>>6,G=(Y+G)>>6,B=(B+Y)>>6
#define ADD_Y2RGB_16(Y1, Y2, R1, G1, B1, R2, G2, B2) \
Y1 = __lsx_vsub_h(Y1, shift); \
Y2 = __lsx_vsub_h(Y2, shift); \
Y1 = __lsx_vmul_h(Y1, yf); \
Y2 = __lsx_vmul_h(Y2, yf); \
R1 = __lsx_vadd_h(R1, Y1); \
G1 = __lsx_vadd_h(G1, Y1); \
B1 = __lsx_vadd_h(B1, Y1); \
R2 = __lsx_vadd_h(R2, Y2); \
G2 = __lsx_vadd_h(G2, Y2); \
B2 = __lsx_vadd_h(B2, Y2); \
R1 = __lsx_vsrai_h(R1, PRECISION); \
G1 = __lsx_vsrai_h(G1, PRECISION); \
B1 = __lsx_vsrai_h(B1, PRECISION); \
R2 = __lsx_vsrai_h(R2, PRECISION); \
G2 = __lsx_vsrai_h(G2, PRECISION); \
B2 = __lsx_vsrai_h(B2, PRECISION); \
#define CLIP(in0, in1, in2, in3, in4, in5) \
{ \
in0 = __lsx_vmaxi_h(in0, 0); \
in1 = __lsx_vmaxi_h(in1, 0); \
in2 = __lsx_vmaxi_h(in2, 0); \
in3 = __lsx_vmaxi_h(in3, 0); \
in4 = __lsx_vmaxi_h(in4, 0); \
in5 = __lsx_vmaxi_h(in5, 0); \
in0 = __lsx_vsat_hu(in0, 7); \
in1 = __lsx_vsat_hu(in1, 7); \
in2 = __lsx_vsat_hu(in2, 7); \
in3 = __lsx_vsat_hu(in3, 7); \
in4 = __lsx_vsat_hu(in4, 7); \
in5 = __lsx_vsat_hu(in5, 7); \
}
#define YUV2RGB_32 \
__m128i y, u_temp, v_temp; \
__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; \
__m128i u, v, r_temp, g_temp, b_temp; \
__m128i r_1, g_1, b_1, r_2, g_2, b_2; \
__m128i y_1, y_2; \
__m128i r_uv_1, g_uv_1, b_uv_1, r_uv_2, g_uv_2, b_uv_2; \
\
READ_UV \
\
/* process first 16 pixels of first line */ \
u = __lsx_vilvl_b(zero, u_temp); \
v = __lsx_vilvl_b(zero, v_temp); \
u = __lsx_vsub_h(u, bias); \
v = __lsx_vsub_h(v, bias); \
UV2RGB_16(u, v, r_1, g_1, b_1, r_2, g_2, b_2); \
r_uv_1 = r_1; g_uv_1 = g_1; b_uv_1 = b_1; \
r_uv_2 = r_2; g_uv_2 = g_2; b_uv_2 = b_2; \
READ_Y(y_ptr1) \
y_1 = __lsx_vilvl_b(zero, y); \
y_2 = __lsx_vilvh_b(zero, y); \
ADD_Y2RGB_16(y_1, y_2, r_1, g_1, b_1, r_2, g_2, b_2) \
CLIP(r_1, g_1, b_1, r_2, g_2, b_2); \
r_8_11 = __lsx_vpickev_b(r_2, r_1); \
g_8_11 = __lsx_vpickev_b(g_2, g_1); \
b_8_11 = __lsx_vpickev_b(b_2, b_1); \
\
/* process first 16 pixels of second line */ \
r_1 = r_uv_1; g_1 = g_uv_1; b_1 = b_uv_1; \
r_2 = r_uv_2; g_2 = g_uv_2; b_2 = b_uv_2; \
\
READ_Y(y_ptr2) \
y_1 = __lsx_vilvl_b(zero, y); \
y_2 = __lsx_vilvh_b(zero, y); \
ADD_Y2RGB_16(y_1, y_2, r_1, g_1, b_1, r_2, g_2, b_2) \
CLIP(r_1, g_1, b_1, r_2, g_2, b_2); \
r_8_21 = __lsx_vpickev_b(r_2, r_1); \
g_8_21 = __lsx_vpickev_b(g_2, g_1); \
b_8_21 = __lsx_vpickev_b(b_2, b_1); \
\
/* process last 16 pixels of first line */ \
u = __lsx_vilvh_b(zero, u_temp); \
v = __lsx_vilvh_b(zero, v_temp); \
u = __lsx_vsub_h(u, bias); \
v = __lsx_vsub_h(v, bias); \
UV2RGB_16(u, v, r_1, g_1, b_1, r_2, g_2, b_2); \
r_uv_1 = r_1; g_uv_1 = g_1; b_uv_1 = b_1; \
r_uv_2 = r_2; g_uv_2 = g_2; b_uv_2 = b_2; \
READ_Y(y_ptr1 + 16 * y_pixel_stride) \
y_1 = __lsx_vilvl_b(zero, y); \
y_2 = __lsx_vilvh_b(zero, y); \
ADD_Y2RGB_16(y_1, y_2, r_1, g_1, b_1, r_2, g_2, b_2) \
CLIP(r_1, g_1, b_1, r_2, g_2, b_2); \
r_8_12 = __lsx_vpickev_b(r_2, r_1); \
g_8_12 = __lsx_vpickev_b(g_2, g_1); \
b_8_12 = __lsx_vpickev_b(b_2, b_1); \
\
/* process last 16 pixels of second line */ \
r_1 = r_uv_1; g_1 = g_uv_1; b_1 = b_uv_1; \
r_2 = r_uv_2; g_2 = g_uv_2; b_2 = b_uv_2; \
\
READ_Y(y_ptr2 + 16 * y_pixel_stride) \
y_1 = __lsx_vilvl_b(zero, y); \
y_2 = __lsx_vilvh_b(zero, y); \
ADD_Y2RGB_16(y_1, y_2, r_1, g_1, b_1, r_2, g_2, b_2) \
CLIP(r_1, g_1, b_1, r_2, g_2, b_2); \
r_8_22 = __lsx_vpickev_b(r_2, r_1); \
g_8_22 = __lsx_vpickev_b(g_2, g_1); \
b_8_22 = __lsx_vpickev_b(b_2, b_1); \
\
void LSX_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;
#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;
__m128i mask1 = {0x0504110302100100, 0x0A14090813070612};
__m128i mask2 = {0x1808170716061505, 0x00000000000A1909};
__m128i mask3 = {0x0504170302160100, 0x0A1A090819070618};
__m128i mask4 = {0x1E0D1D0C1C0B1B0A, 0x00000000000F1F0E};
__m128i mask5 = {0x05041C03021B0100, 0x0A1F09081E07061D};
#elif RGB_FORMAT == RGB_FORMAT_RGBA || RGB_FORMAT_BGRA || \
RGB_FORMAT == RGB_FORMAT_ARGB || RGB_FORMAT_ABGR
const int rgb_pixel_stride = 4;
#else
#error Unknown RGB pixel size
#endif
uint32_t xpos, ypos;
__m128i v2r = __lsx_vreplgr2vr_h(param->v_r_factor);
__m128i v2g = __lsx_vreplgr2vr_h(param->v_g_factor);
__m128i u2g = __lsx_vreplgr2vr_h(param->u_g_factor);
__m128i u2b = __lsx_vreplgr2vr_h(param->u_b_factor);
__m128i bias = __lsx_vreplgr2vr_h(128);
__m128i shift = __lsx_vreplgr2vr_h(param->y_shift);
__m128i yf = __lsx_vreplgr2vr_h(param->y_factor);
__m128i zero = __lsx_vldi(0);
if (width >= 32) {
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;
}
}
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);
}
}
{
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 LSX_FUNCTION_NAME
#undef STD_FUNCTION_NAME
#undef YUV_FORMAT
#undef RGB_FORMAT
#undef LSX_ALIGNED
#undef LSX_ST_UB2
#undef UV2RGB_16
#undef ADD_Y2RGB_16
#undef PACK_RGB24_32_STEP
#undef PACK_RGB24_32
#undef PACK_PIXEL
#undef PACK_RGBA_32
#undef SAVE_LINE1
#undef SAVE_LINE2
#undef READ_Y
#undef READ_UV
#undef YUV2RGB_32
|
