// Copyright 2016 Google Inc. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the COPYING file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
// -----------------------------------------------------------------------------
//
// MSA version of YUV to RGB upsampling functions.
//
// Author: Prashant Patil (prashant.patil@imgtec.com)
#include <string.h>
#include "src/dsp/dsp.h"
#if defined (WEBP_USE_MSA)
#include "src/dsp/msa_macro.h"
#include "src/dsp/yuv.h"
#ifdef FANCY_UPSAMPLING
#define ILVR_UW2(in, out0, out1) do { \
const v8i16 t0 = (v8i16)__msa_ilvr_b((v16i8)zero, (v16i8)in); \
out0 = (v4u32)__msa_ilvr_h((v8i16)zero, t0); \
out1 = (v4u32)__msa_ilvl_h((v8i16)zero, t0); \
} while (0 )
#define ILVRL_UW4(in, out0, out1, out2, out3) do { \
v16u8 t0, t1; \
ILVRL_B2_UB(zero, in, t0, t1); \
ILVRL_H2_UW(zero, t0, out0, out1); \
ILVRL_H2_UW(zero, t1, out2, out3); \
} while (0 )
#define MULTHI_16(in0, in1, in2, in3, cnst, out0, out1) do { \
const v4i32 const0 = (v4i32)__msa_fill_w(cnst * 256 ); \
v4u32 temp0, temp1, temp2, temp3; \
MUL4(in0, const0, in1, const0, in2, const0, in3, const0, \
temp0, temp1, temp2, temp3); \
PCKOD_H2_UH(temp1, temp0, temp3, temp2, out0, out1); \
} while (0 )
#define MULTHI_8(in0, in1, cnst, out0) do { \
const v4i32 const0 = (v4i32)__msa_fill_w(cnst * 256 ); \
v4u32 temp0, temp1; \
MUL2(in0, const0, in1, const0, temp0, temp1); \
out0 = (v8u16)__msa_pckod_h((v8i16)temp1, (v8i16)temp0); \
} while (0 )
#define CALC_R16(y0, y1, v0, v1, dst) do { \
const v8i16 const_a = (v8i16)__msa_fill_h(14234 ); \
const v8i16 a0 = __msa_adds_s_h((v8i16)y0, (v8i16)v0); \
const v8i16 a1 = __msa_adds_s_h((v8i16)y1, (v8i16)v1); \
v8i16 b0 = __msa_subs_s_h(a0, const_a); \
v8i16 b1 = __msa_subs_s_h(a1, const_a); \
SRAI_H2_SH(b0, b1, 6 ); \
CLIP_SH2_0_255(b0, b1); \
dst = (v16u8)__msa_pckev_b((v16i8)b1, (v16i8)b0); \
} while (0 )
#define CALC_R8(y0, v0, dst) do { \
const v8i16 const_a = (v8i16)__msa_fill_h(14234 ); \
const v8i16 a0 = __msa_adds_s_h((v8i16)y0, (v8i16)v0); \
v8i16 b0 = __msa_subs_s_h(a0, const_a); \
b0 = SRAI_H(b0, 6 ); \
CLIP_SH_0_255(b0); \
dst = (v16u8)__msa_pckev_b((v16i8)b0, (v16i8)b0); \
} while (0 )
#define CALC_G16(y0, y1, u0, u1, v0, v1, dst) do { \
const v8i16 const_a = (v8i16)__msa_fill_h(8708 ); \
v8i16 a0 = __msa_subs_s_h((v8i16)y0, (v8i16)u0); \
v8i16 a1 = __msa_subs_s_h((v8i16)y1, (v8i16)u1); \
const v8i16 b0 = __msa_subs_s_h(a0, (v8i16)v0); \
const v8i16 b1 = __msa_subs_s_h(a1, (v8i16)v1); \
a0 = __msa_adds_s_h(b0, const_a); \
a1 = __msa_adds_s_h(b1, const_a); \
SRAI_H2_SH(a0, a1, 6 ); \
CLIP_SH2_0_255(a0, a1); \
dst = (v16u8)__msa_pckev_b((v16i8)a1, (v16i8)a0); \
} while (0 )
#define CALC_G8(y0, u0, v0, dst) do { \
const v8i16 const_a = (v8i16)__msa_fill_h(8708 ); \
v8i16 a0 = __msa_subs_s_h((v8i16)y0, (v8i16)u0); \
const v8i16 b0 = __msa_subs_s_h(a0, (v8i16)v0); \
a0 = __msa_adds_s_h(b0, const_a); \
a0 = SRAI_H(a0, 6 ); \
CLIP_SH_0_255(a0); \
dst = (v16u8)__msa_pckev_b((v16i8)a0, (v16i8)a0); \
} while (0 )
#define CALC_B16(y0, y1, u0, u1, dst) do { \
const v8u16 const_a = (v8u16)__msa_fill_h(17685 ); \
const v8u16 a0 = __msa_adds_u_h((v8u16)y0, u0); \
const v8u16 a1 = __msa_adds_u_h((v8u16)y1, u1); \
v8u16 b0 = __msa_subs_u_h(a0, const_a); \
v8u16 b1 = __msa_subs_u_h(a1, const_a); \
SRAI_H2_UH(b0, b1, 6 ); \
CLIP_UH2_0_255(b0, b1); \
dst = (v16u8)__msa_pckev_b((v16i8)b1, (v16i8)b0); \
} while (0 )
#define CALC_B8(y0, u0, dst) do { \
const v8u16 const_a = (v8u16)__msa_fill_h(17685 ); \
const v8u16 a0 = __msa_adds_u_h((v8u16)y0, u0); \
v8u16 b0 = __msa_subs_u_h(a0, const_a); \
b0 = SRAI_H(b0, 6 ); \
CLIP_UH_0_255(b0); \
dst = (v16u8)__msa_pckev_b((v16i8)b0, (v16i8)b0); \
} while (0 )
#define CALC_RGB16(y, u, v, R, G, B) do { \
const v16u8 zero = { 0 }; \
v8u16 y0, y1, u0, u1, v0, v1; \
v4u32 p0, p1, p2, p3; \
const v16u8 in_y = LD_UB(y); \
const v16u8 in_u = LD_UB(u); \
const v16u8 in_v = LD_UB(v); \
ILVRL_UW4(in_y, p0, p1, p2, p3); \
MULTHI_16(p0, p1, p2, p3, 19077 , y0, y1); \
ILVRL_UW4(in_v, p0, p1, p2, p3); \
MULTHI_16(p0, p1, p2, p3, 26149 , v0, v1); \
CALC_R16(y0, y1, v0, v1, R); \
MULTHI_16(p0, p1, p2, p3, 13320 , v0, v1); \
ILVRL_UW4(in_u, p0, p1, p2, p3); \
MULTHI_16(p0, p1, p2, p3, 6419 , u0, u1); \
CALC_G16(y0, y1, u0, u1, v0, v1, G); \
MULTHI_16(p0, p1, p2, p3, 33050 , u0, u1); \
CALC_B16(y0, y1, u0, u1, B); \
} while (0 )
#define CALC_RGB8(y, u, v, R, G, B) do { \
const v16u8 zero = { 0 }; \
v8u16 y0, u0, v0; \
v4u32 p0, p1; \
const v16u8 in_y = LD_UB(y); \
const v16u8 in_u = LD_UB(u); \
const v16u8 in_v = LD_UB(v); \
ILVR_UW2(in_y, p0, p1); \
MULTHI_8(p0, p1, 19077 , y0); \
ILVR_UW2(in_v, p0, p1); \
MULTHI_8(p0, p1, 26149 , v0); \
CALC_R8(y0, v0, R); \
MULTHI_8(p0, p1, 13320 , v0); \
ILVR_UW2(in_u, p0, p1); \
MULTHI_8(p0, p1, 6419 , u0); \
CALC_G8(y0, u0, v0, G); \
MULTHI_8(p0, p1, 33050 , u0); \
CALC_B8(y0, u0, B); \
} while (0 )
#define STORE16_3(a0, a1, a2, dst) do { \
const v16u8 mask0 = { 0 , 1 , 16 , 2 , 3 , 17 , 4 , 5 , 18 , 6 , 7 , 19 , \
8 , 9 , 20 , 10 }; \
const v16u8 mask1 = { 0 , 21 , 1 , 2 , 22 , 3 , 4 , 23 , 5 , 6 , 24 , 7 , \
8 , 25 , 9 , 10 }; \
const v16u8 mask2 = { 26 , 0 , 1 , 27 , 2 , 3 , 28 , 4 , 5 , 29 , 6 , 7 , \
30 , 8 , 9 , 31 }; \
v16u8 out0, out1, out2, tmp0, tmp1, tmp2; \
ILVRL_B2_UB(a1, a0, tmp0, tmp1); \
out0 = VSHF_UB(tmp0, a2, mask0); \
tmp2 = SLDI_UB(tmp1, tmp0, 11 ); \
out1 = VSHF_UB(tmp2, a2, mask1); \
tmp2 = SLDI_UB(tmp1, tmp1, 6 ); \
out2 = VSHF_UB(tmp2, a2, mask2); \
ST_UB(out0, dst + 0 ); \
ST_UB(out1, dst + 16 ); \
ST_UB(out2, dst + 32 ); \
} while (0 )
#define STORE8_3(a0, a1, a2, dst) do { \
int64_t out_m; \
const v16u8 mask0 = { 0 , 1 , 16 , 2 , 3 , 17 , 4 , 5 , 18 , 6 , 7 , 19 , \
8 , 9 , 20 , 10 }; \
const v16u8 mask1 = { 11 , 21 , 12 , 13 , 22 , 14 , 15 , 23 , \
255 , 255 , 255 , 255 , 255 , 255 , 255 , 255 }; \
const v16u8 tmp0 = (v16u8)__msa_ilvr_b((v16i8)a1, (v16i8)a0); \
v16u8 out0, out1; \
VSHF_B2_UB(tmp0, a2, tmp0, a2, mask0, mask1, out0, out1); \
ST_UB(out0, dst); \
out_m = __msa_copy_s_d((v2i64)out1, 0 ); \
SD(out_m, dst + 16 ); \
} while (0 )
#define STORE16_4(a0, a1, a2, a3, dst) do { \
v16u8 tmp0, tmp1, tmp2, tmp3; \
v16u8 out0, out1, out2, out3; \
ILVRL_B2_UB(a1, a0, tmp0, tmp1); \
ILVRL_B2_UB(a3, a2, tmp2, tmp3); \
ILVRL_H2_UB(tmp2, tmp0, out0, out1); \
ILVRL_H2_UB(tmp3, tmp1, out2, out3); \
ST_UB(out0, dst + 0 ); \
ST_UB(out1, dst + 16 ); \
ST_UB(out2, dst + 32 ); \
ST_UB(out3, dst + 48 ); \
} while (0 )
#define STORE8_4(a0, a1, a2, a3, dst) do { \
v16u8 tmp0, tmp1, tmp2, tmp3; \
ILVR_B2_UB(a1, a0, a3, a2, tmp0, tmp1); \
ILVRL_H2_UB(tmp1, tmp0, tmp2, tmp3); \
ST_UB(tmp2, dst + 0 ); \
ST_UB(tmp3, dst + 16 ); \
} while (0 )
#define STORE2_16(a0, a1, dst) do { \
v16u8 out0, out1; \
ILVRL_B2_UB(a1, a0, out0, out1); \
ST_UB(out0, dst + 0 ); \
ST_UB(out1, dst + 16 ); \
} while (0 )
#define STORE2_8(a0, a1, dst) do { \
const v16u8 out0 = (v16u8)__msa_ilvr_b((v16i8)a1, (v16i8)a0); \
ST_UB(out0, dst); \
} while (0 )
#define CALC_RGBA4444(y, u, v, out0, out1, N, dst) do { \
CALC_RGB## N(y, u, v, R, G, B); \
tmp0 = ANDI_B(R, 0 xf0); \
tmp1 = SRAI_B(G, 4 ); \
RG = tmp0 | tmp1; \
tmp0 = ANDI_B(B, 0 xf0); \
BA = ORI_B(tmp0, 0 x0f); \
STORE2_## N(out0, out1, dst); \
} while (0 )
#define CALC_RGB565(y, u, v, out0, out1, N, dst) do { \
CALC_RGB## N(y, u, v, R, G, B); \
tmp0 = ANDI_B(R, 0 xf8); \
tmp1 = SRAI_B(G, 5 ); \
RG = tmp0 | tmp1; \
tmp0 = SLLI_B(G, 3 ); \
tmp1 = ANDI_B(tmp0, 0 xe0); \
tmp0 = SRAI_B(B, 3 ); \
GB = tmp0 | tmp1; \
STORE2_## N(out0, out1, dst); \
} while (0 )
static WEBP_INLINE int Clip8(int v) {
return v < 0 ? 0 : v > 255 ? 255 : v;
}
static void YuvToRgb(int y, int u, int v, uint8_t* const rgb) {
const int y1 = MultHi(y, 19077 );
const int r1 = y1 + MultHi(v, 26149 ) - 14234 ;
const int g1 = y1 - MultHi(u, 6419 ) - MultHi(v, 13320 ) + 8708 ;
const int b1 = y1 + MultHi(u, 33050 ) - 17685 ;
rgb[0 ] = Clip8(r1 >> 6 );
rgb[1 ] = Clip8(g1 >> 6 );
rgb[2 ] = Clip8(b1 >> 6 );
}
static void YuvToBgr(int y, int u, int v, uint8_t* const bgr) {
const int y1 = MultHi(y, 19077 );
const int r1 = y1 + MultHi(v, 26149 ) - 14234 ;
const int g1 = y1 - MultHi(u, 6419 ) - MultHi(v, 13320 ) + 8708 ;
const int b1 = y1 + MultHi(u, 33050 ) - 17685 ;
bgr[0 ] = Clip8(b1 >> 6 );
bgr[1 ] = Clip8(g1 >> 6 );
bgr[2 ] = Clip8(r1 >> 6 );
}
#if !defined (WEBP_REDUCE_CSP)
static void YuvToRgb565(int y, int u, int v, uint8_t* const rgb) {
const int y1 = MultHi(y, 19077 );
const int r1 = y1 + MultHi(v, 26149 ) - 14234 ;
const int g1 = y1 - MultHi(u, 6419 ) - MultHi(v, 13320 ) + 8708 ;
const int b1 = y1 + MultHi(u, 33050 ) - 17685 ;
const int r = Clip8(r1 >> 6 );
const int g = Clip8(g1 >> 6 );
const int b = Clip8(b1 >> 6 );
const int rg = (r & 0 xf8) | (g >> 5 );
const int gb = ((g << 3 ) & 0 xe0) | (b >> 3 );
#if (WEBP_SWAP_16BIT_CSP == 1 )
rgb[0 ] = gb;
rgb[1 ] = rg;
#else
rgb[0 ] = rg;
rgb[1 ] = gb;
#endif
}
static void YuvToRgba4444(int y, int u, int v, uint8_t* const argb) {
const int y1 = MultHi(y, 19077 );
const int r1 = y1 + MultHi(v, 26149 ) - 14234 ;
const int g1 = y1 - MultHi(u, 6419 ) - MultHi(v, 13320 ) + 8708 ;
const int b1 = y1 + MultHi(u, 33050 ) - 17685 ;
const int r = Clip8(r1 >> 6 );
const int g = Clip8(g1 >> 6 );
const int b = Clip8(b1 >> 6 );
const int rg = (r & 0 xf0) | (g >> 4 );
const int ba = (b & 0 xf0) | 0 x0f; // overwrite the lower 4 bits
#if (WEBP_SWAP_16BIT_CSP == 1 )
argb[0 ] = ba;
argb[1 ] = rg;
#else
argb[0 ] = rg;
argb[1 ] = ba;
#endif
}
static void YuvToArgb(uint8_t y, uint8_t u, uint8_t v, uint8_t* const argb) {
argb[0 ] = 0 xff;
YuvToRgb(y, u, v, argb + 1 );
}
#endif // WEBP_REDUCE_CSP
static void YuvToBgra(uint8_t y, uint8_t u, uint8_t v, uint8_t* const bgra) {
YuvToBgr(y, u, v, bgra);
bgra[3 ] = 0 xff;
}
static void YuvToRgba(uint8_t y, uint8_t u, uint8_t v, uint8_t* const rgba) {
YuvToRgb(y, u, v, rgba);
rgba[3 ] = 0 xff;
}
#if !defined (WEBP_REDUCE_CSP)
static void YuvToRgbLine(const uint8_t* WEBP_RESTRICT y,
const uint8_t* WEBP_RESTRICT u,
const uint8_t* WEBP_RESTRICT v,
uint8_t* WEBP_RESTRICT dst, int length) {
v16u8 R, G, B;
while (length >= 16 ) {
CALC_RGB16(y, u, v, R, G, B);
STORE16_3(R, G, B, dst);
y += 16 ;
u += 16 ;
v += 16 ;
dst += 16 * 3 ;
length -= 16 ;
}
if (length > 8 ) {
uint8_t temp[3 * 16 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB16(temp, u, v, R, G, B);
STORE16_3(R, G, B, temp);
memcpy(dst, temp, length * 3 * sizeof (*dst));
} else if (length > 0 ) {
uint8_t temp[3 * 8 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB8(temp, u, v, R, G, B);
STORE8_3(R, G, B, temp);
memcpy(dst, temp, length * 3 * sizeof (*dst));
}
}
static void YuvToBgrLine(const uint8_t* WEBP_RESTRICT y,
const uint8_t* WEBP_RESTRICT u,
const uint8_t* WEBP_RESTRICT v,
uint8_t* WEBP_RESTRICT dst, int length) {
v16u8 R, G, B;
while (length >= 16 ) {
CALC_RGB16(y, u, v, R, G, B);
STORE16_3(B, G, R, dst);
y += 16 ;
u += 16 ;
v += 16 ;
dst += 16 * 3 ;
length -= 16 ;
}
if (length > 8 ) {
uint8_t temp[3 * 16 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB16(temp, u, v, R, G, B);
STORE16_3(B, G, R, temp);
memcpy(dst, temp, length * 3 * sizeof (*dst));
} else if (length > 0 ) {
uint8_t temp[3 * 8 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB8(temp, u, v, R, G, B);
STORE8_3(B, G, R, temp);
memcpy(dst, temp, length * 3 * sizeof (*dst));
}
}
#endif // WEBP_REDUCE_CSP
static void YuvToRgbaLine(const uint8_t* WEBP_RESTRICT y,
const uint8_t* WEBP_RESTRICT u,
const uint8_t* WEBP_RESTRICT v,
uint8_t* WEBP_RESTRICT dst, int length) {
v16u8 R, G, B;
const v16u8 A = (v16u8)__msa_ldi_b(ALPHAVAL);
while (length >= 16 ) {
CALC_RGB16(y, u, v, R, G, B);
STORE16_4(R, G, B, A, dst);
y += 16 ;
u += 16 ;
v += 16 ;
dst += 16 * 4 ;
length -= 16 ;
}
if (length > 8 ) {
uint8_t temp[4 * 16 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB16(&temp[0 ], u, v, R, G, B);
STORE16_4(R, G, B, A, temp);
memcpy(dst, temp, length * 4 * sizeof (*dst));
} else if (length > 0 ) {
uint8_t temp[4 * 8 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB8(temp, u, v, R, G, B);
STORE8_4(R, G, B, A, temp);
memcpy(dst, temp, length * 4 * sizeof (*dst));
}
}
static void YuvToBgraLine(const uint8_t* WEBP_RESTRICT y,
const uint8_t* WEBP_RESTRICT u,
const uint8_t* WEBP_RESTRICT v,
uint8_t* WEBP_RESTRICT dst, int length) {
v16u8 R, G, B;
const v16u8 A = (v16u8)__msa_ldi_b(ALPHAVAL);
while (length >= 16 ) {
CALC_RGB16(y, u, v, R, G, B);
STORE16_4(B, G, R, A, dst);
y += 16 ;
u += 16 ;
v += 16 ;
dst += 16 * 4 ;
length -= 16 ;
}
if (length > 8 ) {
uint8_t temp[4 * 16 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB16(temp, u, v, R, G, B);
STORE16_4(B, G, R, A, temp);
memcpy(dst, temp, length * 4 * sizeof (*dst));
} else if (length > 0 ) {
uint8_t temp[4 * 8 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB8(temp, u, v, R, G, B);
STORE8_4(B, G, R, A, temp);
memcpy(dst, temp, length * 4 * sizeof (*dst));
}
}
#if !defined (WEBP_REDUCE_CSP)
static void YuvToArgbLine(const uint8_t* WEBP_RESTRICT y,
const uint8_t* WEBP_RESTRICT u,
const uint8_t* WEBP_RESTRICT v,
uint8_t* WEBP_RESTRICT dst, int length) {
v16u8 R, G, B;
const v16u8 A = (v16u8)__msa_ldi_b(ALPHAVAL);
while (length >= 16 ) {
CALC_RGB16(y, u, v, R, G, B);
STORE16_4(A, R, G, B, dst);
y += 16 ;
u += 16 ;
v += 16 ;
dst += 16 * 4 ;
length -= 16 ;
}
if (length > 8 ) {
uint8_t temp[4 * 16 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB16(temp, u, v, R, G, B);
STORE16_4(A, R, G, B, temp);
memcpy(dst, temp, length * 4 * sizeof (*dst));
} else if (length > 0 ) {
uint8_t temp[4 * 8 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
CALC_RGB8(temp, u, v, R, G, B);
STORE8_4(A, R, G, B, temp);
memcpy(dst, temp, length * 4 * sizeof (*dst));
}
}
static void YuvToRgba4444Line(const uint8_t* WEBP_RESTRICT y,
const uint8_t* WEBP_RESTRICT u,
const uint8_t* WEBP_RESTRICT v,
uint8_t* WEBP_RESTRICT dst, int length) {
v16u8 R, G, B, RG, BA, tmp0, tmp1;
while (length >= 16 ) {
#if (WEBP_SWAP_16BIT_CSP == 1 )
CALC_RGBA4444(y, u, v, BA, RG, 16 , dst);
#else
CALC_RGBA4444(y, u, v, RG, BA, 16 , dst);
#endif
y += 16 ;
u += 16 ;
v += 16 ;
dst += 16 * 2 ;
length -= 16 ;
}
if (length > 8 ) {
uint8_t temp[2 * 16 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
#if (WEBP_SWAP_16BIT_CSP == 1 )
CALC_RGBA4444(temp, u, v, BA, RG, 16 , temp);
#else
CALC_RGBA4444(temp, u, v, RG, BA, 16 , temp);
#endif
memcpy(dst, temp, length * 2 * sizeof (*dst));
} else if (length > 0 ) {
uint8_t temp[2 * 8 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
#if (WEBP_SWAP_16BIT_CSP == 1 )
CALC_RGBA4444(temp, u, v, BA, RG, 8 , temp);
#else
CALC_RGBA4444(temp, u, v, RG, BA, 8 , temp);
#endif
memcpy(dst, temp, length * 2 * sizeof (*dst));
}
}
static void YuvToRgb565Line(const uint8_t* WEBP_RESTRICT y,
const uint8_t* WEBP_RESTRICT u,
const uint8_t* WEBP_RESTRICT v,
uint8_t* WEBP_RESTRICT dst, int length) {
v16u8 R, G, B, RG, GB, tmp0, tmp1;
while (length >= 16 ) {
#if (WEBP_SWAP_16BIT_CSP == 1 )
CALC_RGB565(y, u, v, GB, RG, 16 , dst);
#else
CALC_RGB565(y, u, v, RG, GB, 16 , dst);
#endif
y += 16 ;
u += 16 ;
v += 16 ;
dst += 16 * 2 ;
length -= 16 ;
}
if (length > 8 ) {
uint8_t temp[2 * 16 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
#if (WEBP_SWAP_16BIT_CSP == 1 )
CALC_RGB565(temp, u, v, GB, RG, 16 , temp);
#else
CALC_RGB565(temp, u, v, RG, GB, 16 , temp);
#endif
memcpy(dst, temp, length * 2 * sizeof (*dst));
} else if (length > 0 ) {
uint8_t temp[2 * 8 ] = { 0 };
memcpy(temp, y, length * sizeof (*temp));
#if (WEBP_SWAP_16BIT_CSP == 1 )
CALC_RGB565(temp, u, v, GB, RG, 8 , temp);
#else
CALC_RGB565(temp, u, v, RG, GB, 8 , temp);
#endif
memcpy(dst, temp, length * 2 * sizeof (*dst));
}
}
#endif // WEBP_REDUCE_CSP
#define UPSAMPLE_32PIXELS(a, b, c, d) do { \
v16u8 s = __msa_aver_u_b(a, d); \
v16u8 t = __msa_aver_u_b(b, c); \
const v16u8 st = s ^ t; \
v16u8 ad = a ^ d; \
v16u8 bc = b ^ c; \
v16u8 t0 = ad | bc; \
v16u8 t1 = t0 | st; \
v16u8 t2 = ANDI_B(t1, 1 ); \
v16u8 t3 = __msa_aver_u_b(s, t); \
const v16u8 k = t3 - t2; \
v16u8 diag1, diag2; \
AVER_UB2_UB(t, k, s, k, t0, t1); \
bc = bc & st; \
ad = ad & st; \
t = t ^ k; \
s = s ^ k; \
t2 = bc | t; \
t3 = ad | s; \
t2 = ANDI_B(t2, 1 ); \
t3 = ANDI_B(t3, 1 ); \
SUB2(t0, t2, t1, t3, diag1, diag2); \
AVER_UB2_UB(a, diag1, b, diag2, t0, t1); \
ILVRL_B2_UB(t1, t0, a, b); \
if (pbot_y != NULL) { \
AVER_UB2_UB(c, diag2, d, diag1, t0, t1); \
ILVRL_B2_UB(t1, t0, c, d); \
} \
} while (0 )
#define UPSAMPLE_FUNC(FUNC_NAME, FUNC, XSTEP) \
static void FUNC_NAME(const uint8_t* WEBP_RESTRICT top_y, \
const uint8_t* WEBP_RESTRICT bot_y, \
const uint8_t* WEBP_RESTRICT top_u, \
const uint8_t* WEBP_RESTRICT top_v, \
const uint8_t* WEBP_RESTRICT cur_u, \
const uint8_t* WEBP_RESTRICT cur_v, \
uint8_t* WEBP_RESTRICT top_dst, \
uint8_t* WEBP_RESTRICT bot_dst, int len) { \
int size = (len - 1 ) >> 1 ; \
uint8_t temp_u[64 ]; \
uint8_t temp_v[64 ]; \
const uint32_t tl_uv = ((top_u[0 ]) | ((top_v[0 ]) << 16 )); \
const uint32_t l_uv = ((cur_u[0 ]) | ((cur_v[0 ]) << 16 )); \
const uint32_t uv0 = (3 * tl_uv + l_uv + 0 x00020002u) >> 2 ; \
const uint8_t* ptop_y = &top_y[1 ]; \
uint8_t* ptop_dst = top_dst + XSTEP; \
const uint8_t* pbot_y = &bot_y[1 ]; \
uint8_t* pbot_dst = bot_dst + XSTEP; \
\
FUNC(top_y[0 ], uv0 & 0 xff, (uv0 >> 16 ), top_dst); \
if (bot_y != NULL) { \
const uint32_t uv1 = (3 * l_uv + tl_uv + 0 x00020002u) >> 2 ; \
FUNC(bot_y[0 ], uv1 & 0 xff, (uv1 >> 16 ), bot_dst); \
} \
while (size >= 16 ) { \
v16u8 tu0, tu1, tv0, tv1, cu0, cu1, cv0, cv1; \
LD_UB2(top_u, 1 , tu0, tu1); \
LD_UB2(cur_u, 1 , cu0, cu1); \
LD_UB2(top_v, 1 , tv0, tv1); \
LD_UB2(cur_v, 1 , cv0, cv1); \
UPSAMPLE_32PIXELS(tu0, tu1, cu0, cu1); \
UPSAMPLE_32PIXELS(tv0, tv1, cv0, cv1); \
ST_UB4(tu0, tu1, cu0, cu1, &temp_u[0 ], 16 ); \
ST_UB4(tv0, tv1, cv0, cv1, &temp_v[0 ], 16 ); \
FUNC## Line(ptop_y, &temp_u[ 0 ], &temp_v[0 ], ptop_dst, 32 ); \
if (bot_y != NULL) { \
FUNC## Line(pbot_y, &temp_u[32 ], &temp_v[32 ], pbot_dst, 32 ); \
} \
ptop_y += 32 ; \
pbot_y += 32 ; \
ptop_dst += XSTEP * 32 ; \
pbot_dst += XSTEP * 32 ; \
top_u += 16 ; \
top_v += 16 ; \
cur_u += 16 ; \
cur_v += 16 ; \
size -= 16 ; \
} \
if (size > 0 ) { \
v16u8 tu0, tu1, tv0, tv1, cu0, cu1, cv0, cv1; \
memcpy(&temp_u[ 0 ], top_u, 17 * sizeof (uint8_t)); \
memcpy(&temp_u[32 ], cur_u, 17 * sizeof (uint8_t)); \
memcpy(&temp_v[ 0 ], top_v, 17 * sizeof (uint8_t)); \
memcpy(&temp_v[32 ], cur_v, 17 * sizeof (uint8_t)); \
LD_UB2(&temp_u[ 0 ], 1 , tu0, tu1); \
LD_UB2(&temp_u[32 ], 1 , cu0, cu1); \
LD_UB2(&temp_v[ 0 ], 1 , tv0, tv1); \
LD_UB2(&temp_v[32 ], 1 , cv0, cv1); \
UPSAMPLE_32PIXELS(tu0, tu1, cu0, cu1); \
UPSAMPLE_32PIXELS(tv0, tv1, cv0, cv1); \
ST_UB4(tu0, tu1, cu0, cu1, &temp_u[0 ], 16 ); \
ST_UB4(tv0, tv1, cv0, cv1, &temp_v[0 ], 16 ); \
FUNC## Line(ptop_y, &temp_u[ 0 ], &temp_v[0 ], ptop_dst, size * 2 ); \
if (bot_y != NULL) { \
FUNC## Line(pbot_y, &temp_u[32 ], &temp_v[32 ], pbot_dst, size * 2 ); \
} \
top_u += size; \
top_v += size; \
cur_u += size; \
cur_v += size; \
} \
if (!(len & 1 )) { \
const uint32_t t0 = ((top_u[0 ]) | ((top_v[0 ]) << 16 )); \
const uint32_t c0 = ((cur_u[0 ]) | ((cur_v[0 ]) << 16 )); \
const uint32_t tmp0 = (3 * t0 + c0 + 0 x00020002u) >> 2 ; \
FUNC(top_y[len - 1 ], tmp0 & 0 xff, (tmp0 >> 16 ), \
top_dst + (len - 1 ) * XSTEP); \
if (bot_y != NULL) { \
const uint32_t tmp1 = (3 * c0 + t0 + 0 x00020002u) >> 2 ; \
FUNC(bot_y[len - 1 ], tmp1 & 0 xff, (tmp1 >> 16 ), \
bot_dst + (len - 1 ) * XSTEP); \
} \
} \
}
UPSAMPLE_FUNC(UpsampleRgbaLinePair, YuvToRgba, 4 )
UPSAMPLE_FUNC(UpsampleBgraLinePair, YuvToBgra, 4 )
#if !defined (WEBP_REDUCE_CSP)
UPSAMPLE_FUNC(UpsampleRgbLinePair, YuvToRgb, 3 )
UPSAMPLE_FUNC(UpsampleBgrLinePair, YuvToBgr, 3 )
UPSAMPLE_FUNC(UpsampleArgbLinePair, YuvToArgb, 4 )
UPSAMPLE_FUNC(UpsampleRgba4444LinePair, YuvToRgba4444, 2 )
UPSAMPLE_FUNC(UpsampleRgb565LinePair, YuvToRgb565, 2 )
#endif // WEBP_REDUCE_CSP
//------------------------------------------------------------------------------
// Entry point
extern WebPUpsampleLinePairFunc WebPUpsamplers[/* MODE_LAST */];
extern void WebPInitUpsamplersMSA(void );
WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersMSA(void ) {
WebPUpsamplers[MODE_RGBA] = UpsampleRgbaLinePair;
WebPUpsamplers[MODE_BGRA] = UpsampleBgraLinePair;
WebPUpsamplers[MODE_rgbA] = UpsampleRgbaLinePair;
WebPUpsamplers[MODE_bgrA] = UpsampleBgraLinePair;
#if !defined (WEBP_REDUCE_CSP)
WebPUpsamplers[MODE_RGB] = UpsampleRgbLinePair;
WebPUpsamplers[MODE_BGR] = UpsampleBgrLinePair;
WebPUpsamplers[MODE_ARGB] = UpsampleArgbLinePair;
WebPUpsamplers[MODE_Argb] = UpsampleArgbLinePair;
WebPUpsamplers[MODE_RGB_565] = UpsampleRgb565LinePair;
WebPUpsamplers[MODE_RGBA_4444] = UpsampleRgba4444LinePair;
WebPUpsamplers[MODE_rgbA_4444] = UpsampleRgba4444LinePair;
#endif // WEBP_REDUCE_CSP
}
#endif // FANCY_UPSAMPLING
#endif // WEBP_USE_MSA
#if !(defined (FANCY_UPSAMPLING) && defined (WEBP_USE_MSA))
WEBP_DSP_INIT_STUB(WebPInitUpsamplersMSA)
#endif
Messung V0.5 in Prozent C=91 H=73 G=82
¤ Dauer der Verarbeitung: 0.15 Sekunden
(vorverarbeitet am 2026-06-04)
¤
*© Formatika GbR, Deutschland