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// Copyright 2014 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.
// -----------------------------------------------------------------------------
//
// Image transforms and color space conversion methods for lossless decoder.
//
// Author(s): Djordje Pesut (djordje.pesut@imgtec.com)
// Jovan Zelincevic (jovan.zelincevic@imgtec.com)
#include "./dsp.h"
#if defined(WEBP_USE_MIPS_DSP_R2)
#include "./lossless.h"
#include "./lossless_common.h"
#define MAP_COLOR_FUNCS(FUNC_NAME, TYPE, GET_INDEX, GET_VALUE) \
static void FUNC_NAME(const TYPE* src, \
const uint32_t* const color_map, \
TYPE* dst, int y_start, int y_end, \
int width) { \
int y; \
for (y = y_start; y < y_end; ++y) { \
int x; \
for (x = 0; x < (width >> 2); ++x) { \
int tmp1, tmp2, tmp3, tmp4; \
__asm__ volatile ( \
".ifc " #TYPE ", uint8_t \n\t" \
"lbu %[tmp1], 0(%[src]) \n\t" \
"lbu %[tmp2], 1(%[src]) \n\t" \
"lbu %[tmp3], 2(%[src]) \n\t" \
"lbu %[tmp4], 3(%[src]) \n\t" \
"addiu %[src], %[src], 4 \n\t" \
".endif \n\t" \
".ifc " #TYPE ", uint32_t \n\t" \
"lw %[tmp1], 0(%[src]) \n\t" \
"lw %[tmp2], 4(%[src]) \n\t" \
"lw %[tmp3], 8(%[src]) \n\t" \
"lw %[tmp4], 12(%[src]) \n\t" \
"ext %[tmp1], %[tmp1], 8, 8 \n\t" \
"ext %[tmp2], %[tmp2], 8, 8 \n\t" \
"ext %[tmp3], %[tmp3], 8, 8 \n\t" \
"ext %[tmp4], %[tmp4], 8, 8 \n\t" \
"addiu %[src], %[src], 16 \n\t" \
".endif \n\t" \
"sll %[tmp1], %[tmp1], 2 \n\t" \
"sll %[tmp2], %[tmp2], 2 \n\t" \
"sll %[tmp3], %[tmp3], 2 \n\t" \
"sll %[tmp4], %[tmp4], 2 \n\t" \
"lwx %[tmp1], %[tmp1](%[color_map]) \n\t" \
"lwx %[tmp2], %[tmp2](%[color_map]) \n\t" \
"lwx %[tmp3], %[tmp3](%[color_map]) \n\t" \
"lwx %[tmp4], %[tmp4](%[color_map]) \n\t" \
".ifc " #TYPE ", uint8_t \n\t" \
"ext %[tmp1], %[tmp1], 8, 8 \n\t" \
"ext %[tmp2], %[tmp2], 8, 8 \n\t" \
"ext %[tmp3], %[tmp3], 8, 8 \n\t" \
"ext %[tmp4], %[tmp4], 8, 8 \n\t" \
"sb %[tmp1], 0(%[dst]) \n\t" \
"sb %[tmp2], 1(%[dst]) \n\t" \
"sb %[tmp3], 2(%[dst]) \n\t" \
"sb %[tmp4], 3(%[dst]) \n\t" \
"addiu %[dst], %[dst], 4 \n\t" \
".endif \n\t" \
".ifc " #TYPE ", uint32_t \n\t" \
"sw %[tmp1], 0(%[dst]) \n\t" \
"sw %[tmp2], 4(%[dst]) \n\t" \
"sw %[tmp3], 8(%[dst]) \n\t" \
"sw %[tmp4], 12(%[dst]) \n\t" \
"addiu %[dst], %[dst], 16 \n\t" \
".endif \n\t" \
: [tmp1]"=&r"(tmp1), [tmp2]"=&r"(tmp2), [tmp3]"=&r"(tmp3), \
[tmp4]"=&r"(tmp4), [src]"+&r"(src), [dst]"+r"(dst) \
: [color_map]"r"(color_map) \
: "memory" \
); \
} \
for (x = 0; x < (width & 3); ++x) { \
*dst++ = GET_VALUE(color_map[GET_INDEX(*src++)]); \
} \
} \
}
MAP_COLOR_FUNCS(MapARGB, uint32_t, VP8GetARGBIndex, VP8GetARGBValue)
MAP_COLOR_FUNCS(MapAlpha, uint8_t, VP8GetAlphaIndex, VP8GetAlphaValue)
#undef MAP_COLOR_FUNCS
static WEBP_INLINE uint32_t ClampedAddSubtractFull(uint32_t c0, uint32_t c1,
uint32_t c2) {
int temp0, temp1, temp2, temp3, temp4, temp5;
__asm__ volatile (
"preceu.ph.qbr %[temp1], %[c0] \n\t"
"preceu.ph.qbl %[temp2], %[c0] \n\t"
"preceu.ph.qbr %[temp3], %[c1] \n\t"
"preceu.ph.qbl %[temp4], %[c1] \n\t"
"preceu.ph.qbr %[temp5], %[c2] \n\t"
"preceu.ph.qbl %[temp0], %[c2] \n\t"
"subq.ph %[temp3], %[temp3], %[temp5] \n\t"
"subq.ph %[temp4], %[temp4], %[temp0] \n\t"
"addq.ph %[temp1], %[temp1], %[temp3] \n\t"
"addq.ph %[temp2], %[temp2], %[temp4] \n\t"
"shll_s.ph %[temp1], %[temp1], 7 \n\t"
"shll_s.ph %[temp2], %[temp2], 7 \n\t"
"precrqu_s.qb.ph %[temp2], %[temp2], %[temp1] \n\t"
: [temp0]"=r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5)
: [c0]"r"(c0), [c1]"r"(c1), [c2]"r"(c2)
: "memory"
);
return temp2;
}
static WEBP_INLINE uint32_t ClampedAddSubtractHalf(uint32_t c0, uint32_t c1,
uint32_t c2) {
int temp0, temp1, temp2, temp3, temp4, temp5;
__asm__ volatile (
"adduh.qb %[temp5], %[c0], %[c1] \n\t"
"preceu.ph.qbr %[temp3], %[c2] \n\t"
"preceu.ph.qbr %[temp1], %[temp5] \n\t"
"preceu.ph.qbl %[temp2], %[temp5] \n\t"
"preceu.ph.qbl %[temp4], %[c2] \n\t"
"subq.ph %[temp3], %[temp1], %[temp3] \n\t"
"subq.ph %[temp4], %[temp2], %[temp4] \n\t"
"shrl.ph %[temp5], %[temp3], 15 \n\t"
"shrl.ph %[temp0], %[temp4], 15 \n\t"
"addq.ph %[temp3], %[temp3], %[temp5] \n\t"
"addq.ph %[temp4], %[temp0], %[temp4] \n\t"
"shra.ph %[temp3], %[temp3], 1 \n\t"
"shra.ph %[temp4], %[temp4], 1 \n\t"
"addq.ph %[temp1], %[temp1], %[temp3] \n\t"
"addq.ph %[temp2], %[temp2], %[temp4] \n\t"
"shll_s.ph %[temp1], %[temp1], 7 \n\t"
"shll_s.ph %[temp2], %[temp2], 7 \n\t"
"precrqu_s.qb.ph %[temp1], %[temp2], %[temp1] \n\t"
: [temp0]"=r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [temp4]"=r"(temp4), [temp5]"=&r"(temp5)
: [c0]"r"(c0), [c1]"r"(c1), [c2]"r"(c2)
: "memory"
);
return temp1;
}
static WEBP_INLINE uint32_t Select(uint32_t a, uint32_t b, uint32_t c) {
int temp0, temp1, temp2, temp3, temp4, temp5;
__asm__ volatile (
"cmpgdu.lt.qb %[temp1], %[c], %[b] \n\t"
"pick.qb %[temp1], %[b], %[c] \n\t"
"pick.qb %[temp2], %[c], %[b] \n\t"
"cmpgdu.lt.qb %[temp4], %[c], %[a] \n\t"
"pick.qb %[temp4], %[a], %[c] \n\t"
"pick.qb %[temp5], %[c], %[a] \n\t"
"subu.qb %[temp3], %[temp1], %[temp2] \n\t"
"subu.qb %[temp0], %[temp4], %[temp5] \n\t"
"raddu.w.qb %[temp3], %[temp3] \n\t"
"raddu.w.qb %[temp0], %[temp0] \n\t"
"subu %[temp3], %[temp3], %[temp0] \n\t"
"slti %[temp0], %[temp3], 0x1 \n\t"
"movz %[a], %[b], %[temp0] \n\t"
: [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), [temp3]"=&r"(temp3),
[temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [temp0]"=&r"(temp0),
[a]"+&r"(a)
: [b]"r"(b), [c]"r"(c)
);
return a;
}
static WEBP_INLINE uint32_t Average2(uint32_t a0, uint32_t a1) {
__asm__ volatile (
"adduh.qb %[a0], %[a0], %[a1] \n\t"
: [a0]"+r"(a0)
: [a1]"r"(a1)
);
return a0;
}
static WEBP_INLINE uint32_t Average3(uint32_t a0, uint32_t a1, uint32_t a2) {
return Average2(Average2(a0, a2), a1);
}
static WEBP_INLINE uint32_t Average4(uint32_t a0, uint32_t a1,
uint32_t a2, uint32_t a3) {
return Average2(Average2(a0, a1), Average2(a2, a3));
}
static uint32_t Predictor5(uint32_t left, const uint32_t* const top) {
return Average3(left, top[0], top[1]);
}
static uint32_t Predictor6(uint32_t left, const uint32_t* const top) {
return Average2(left, top[-1]);
}
static uint32_t Predictor7(uint32_t left, const uint32_t* const top) {
return Average2(left, top[0]);
}
static uint32_t Predictor8(uint32_t left, const uint32_t* const top) {
(void)left;
return Average2(top[-1], top[0]);
}
static uint32_t Predictor9(uint32_t left, const uint32_t* const top) {
(void)left;
return Average2(top[0], top[1]);
}
static uint32_t Predictor10(uint32_t left, const uint32_t* const top) {
return Average4(left, top[-1], top[0], top[1]);
}
static uint32_t Predictor11(uint32_t left, const uint32_t* const top) {
return Select(top[0], left, top[-1]);
}
static uint32_t Predictor12(uint32_t left, const uint32_t* const top) {
return ClampedAddSubtractFull(left, top[0], top[-1]);
}
static uint32_t Predictor13(uint32_t left, const uint32_t* const top) {
return ClampedAddSubtractHalf(left, top[0], top[-1]);
}
// Add green to blue and red channels (i.e. perform the inverse transform of
// 'subtract green').
static void AddGreenToBlueAndRed(const uint32_t* src, int num_pixels,
uint32_t* dst) {
uint32_t temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
const uint32_t* const p_loop1_end = src + (num_pixels & ~3);
const uint32_t* const p_loop2_end = src + num_pixels;
__asm__ volatile (
".set push \n\t"
".set noreorder \n\t"
"beq %[src], %[p_loop1_end], 3f \n\t"
" nop \n\t"
"0: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"lw %[temp1], 4(%[src]) \n\t"
"lw %[temp2], 8(%[src]) \n\t"
"lw %[temp3], 12(%[src]) \n\t"
"ext %[temp4], %[temp0], 8, 8 \n\t"
"ext %[temp5], %[temp1], 8, 8 \n\t"
"ext %[temp6], %[temp2], 8, 8 \n\t"
"ext %[temp7], %[temp3], 8, 8 \n\t"
"addiu %[src], %[src], 16 \n\t"
"addiu %[dst], %[dst], 16 \n\t"
"replv.ph %[temp4], %[temp4] \n\t"
"replv.ph %[temp5], %[temp5] \n\t"
"replv.ph %[temp6], %[temp6] \n\t"
"replv.ph %[temp7], %[temp7] \n\t"
"addu.qb %[temp0], %[temp0], %[temp4] \n\t"
"addu.qb %[temp1], %[temp1], %[temp5] \n\t"
"addu.qb %[temp2], %[temp2], %[temp6] \n\t"
"addu.qb %[temp3], %[temp3], %[temp7] \n\t"
"sw %[temp0], -16(%[dst]) \n\t"
"sw %[temp1], -12(%[dst]) \n\t"
"sw %[temp2], -8(%[dst]) \n\t"
"bne %[src], %[p_loop1_end], 0b \n\t"
" sw %[temp3], -4(%[dst]) \n\t"
"3: \n\t"
"beq %[src], %[p_loop2_end], 2f \n\t"
" nop \n\t"
"1: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"addiu %[src], %[src], 4 \n\t"
"addiu %[dst], %[dst], 4 \n\t"
"ext %[temp4], %[temp0], 8, 8 \n\t"
"replv.ph %[temp4], %[temp4] \n\t"
"addu.qb %[temp0], %[temp0], %[temp4] \n\t"
"bne %[src], %[p_loop2_end], 1b \n\t"
" sw %[temp0], -4(%[dst]) \n\t"
"2: \n\t"
".set pop \n\t"
: [dst]"+&r"(dst), [src]"+&r"(src), [temp0]"=&r"(temp0),
[temp1]"=&r"(temp1), [temp2]"=&r"(temp2), [temp3]"=&r"(temp3),
[temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [temp6]"=&r"(temp6),
[temp7]"=&r"(temp7)
: [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end)
: "memory"
);
}
static void TransformColorInverse(const VP8LMultipliers* const m,
const uint32_t* src, int num_pixels,
uint32_t* dst) {
int temp0, temp1, temp2, temp3, temp4, temp5;
uint32_t argb, argb1, new_red;
const uint32_t G_to_R = m->green_to_red_;
const uint32_t G_to_B = m->green_to_blue_;
const uint32_t R_to_B = m->red_to_blue_;
const uint32_t* const p_loop_end = src + (num_pixels & ~1);
__asm__ volatile (
".set push \n\t"
".set noreorder \n\t"
"beq %[src], %[p_loop_end], 1f \n\t"
" nop \n\t"
"replv.ph %[temp0], %[G_to_R] \n\t"
"replv.ph %[temp1], %[G_to_B] \n\t"
"replv.ph %[temp2], %[R_to_B] \n\t"
"shll.ph %[temp0], %[temp0], 8 \n\t"
"shll.ph %[temp1], %[temp1], 8 \n\t"
"shll.ph %[temp2], %[temp2], 8 \n\t"
"shra.ph %[temp0], %[temp0], 8 \n\t"
"shra.ph %[temp1], %[temp1], 8 \n\t"
"shra.ph %[temp2], %[temp2], 8 \n\t"
"0: \n\t"
"lw %[argb], 0(%[src]) \n\t"
"lw %[argb1], 4(%[src]) \n\t"
"sw %[argb], 0(%[dst]) \n\t"
"sw %[argb1], 4(%[dst]) \n\t"
"addiu %[src], %[src], 8 \n\t"
"addiu %[dst], %[dst], 8 \n\t"
"precrq.qb.ph %[temp3], %[argb], %[argb1] \n\t"
"preceu.ph.qbra %[temp3], %[temp3] \n\t"
"shll.ph %[temp3], %[temp3], 8 \n\t"
"shra.ph %[temp3], %[temp3], 8 \n\t"
"mul.ph %[temp5], %[temp3], %[temp0] \n\t"
"mul.ph %[temp3], %[temp3], %[temp1] \n\t"
"precrq.ph.w %[new_red], %[argb], %[argb1] \n\t"
"ins %[argb1], %[argb], 16, 16 \n\t"
"shra.ph %[temp5], %[temp5], 5 \n\t"
"shra.ph %[temp3], %[temp3], 5 \n\t"
"addu.ph %[new_red], %[new_red], %[temp5] \n\t"
"addu.ph %[argb1], %[argb1], %[temp3] \n\t"
"preceu.ph.qbra %[temp5], %[new_red] \n\t"
"shll.ph %[temp4], %[temp5], 8 \n\t"
"shra.ph %[temp4], %[temp4], 8 \n\t"
"mul.ph %[temp4], %[temp4], %[temp2] \n\t"
"sb %[temp5], -2(%[dst]) \n\t"
"sra %[temp5], %[temp5], 16 \n\t"
"shra.ph %[temp4], %[temp4], 5 \n\t"
"addu.ph %[argb1], %[argb1], %[temp4] \n\t"
"preceu.ph.qbra %[temp3], %[argb1] \n\t"
"sb %[temp5], -6(%[dst]) \n\t"
"sb %[temp3], -4(%[dst]) \n\t"
"sra %[temp3], %[temp3], 16 \n\t"
"bne %[src], %[p_loop_end], 0b \n\t"
" sb %[temp3], -8(%[dst]) \n\t"
"1: \n\t"
".set pop \n\t"
: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
[new_red]"=&r"(new_red), [argb]"=&r"(argb),
[argb1]"=&r"(argb1), [dst]"+&r"(dst), [src]"+&r"(src)
: [G_to_R]"r"(G_to_R), [R_to_B]"r"(R_to_B),
[G_to_B]"r"(G_to_B), [p_loop_end]"r"(p_loop_end)
: "memory", "hi", "lo"
);
// Fall-back to C-version for left-overs.
if (num_pixels & 1) VP8LTransformColorInverse_C(m, src, 1, dst);
}
static void ConvertBGRAToRGB(const uint32_t* src,
int num_pixels, uint8_t* dst) {
int temp0, temp1, temp2, temp3;
const uint32_t* const p_loop1_end = src + (num_pixels & ~3);
const uint32_t* const p_loop2_end = src + num_pixels;
__asm__ volatile (
".set push \n\t"
".set noreorder \n\t"
"beq %[src], %[p_loop1_end], 3f \n\t"
" nop \n\t"
"0: \n\t"
"lw %[temp3], 12(%[src]) \n\t"
"lw %[temp2], 8(%[src]) \n\t"
"lw %[temp1], 4(%[src]) \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"ins %[temp3], %[temp2], 24, 8 \n\t"
"sll %[temp2], %[temp2], 8 \n\t"
"rotr %[temp3], %[temp3], 16 \n\t"
"ins %[temp2], %[temp1], 0, 16 \n\t"
"sll %[temp1], %[temp1], 8 \n\t"
"wsbh %[temp3], %[temp3] \n\t"
"balign %[temp0], %[temp1], 1 \n\t"
"wsbh %[temp2], %[temp2] \n\t"
"wsbh %[temp0], %[temp0] \n\t"
"usw %[temp3], 8(%[dst]) \n\t"
"rotr %[temp0], %[temp0], 16 \n\t"
"usw %[temp2], 4(%[dst]) \n\t"
"addiu %[src], %[src], 16 \n\t"
"usw %[temp0], 0(%[dst]) \n\t"
"bne %[src], %[p_loop1_end], 0b \n\t"
" addiu %[dst], %[dst], 12 \n\t"
"3: \n\t"
"beq %[src], %[p_loop2_end], 2f \n\t"
" nop \n\t"
"1: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"addiu %[src], %[src], 4 \n\t"
"wsbh %[temp1], %[temp0] \n\t"
"addiu %[dst], %[dst], 3 \n\t"
"ush %[temp1], -2(%[dst]) \n\t"
"sra %[temp0], %[temp0], 16 \n\t"
"bne %[src], %[p_loop2_end], 1b \n\t"
" sb %[temp0], -3(%[dst]) \n\t"
"2: \n\t"
".set pop \n\t"
: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [dst]"+&r"(dst), [src]"+&r"(src)
: [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end)
: "memory"
);
}
static void ConvertBGRAToRGBA(const uint32_t* src,
int num_pixels, uint8_t* dst) {
int temp0, temp1, temp2, temp3;
const uint32_t* const p_loop1_end = src + (num_pixels & ~3);
const uint32_t* const p_loop2_end = src + num_pixels;
__asm__ volatile (
".set push \n\t"
".set noreorder \n\t"
"beq %[src], %[p_loop1_end], 3f \n\t"
" nop \n\t"
"0: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"lw %[temp1], 4(%[src]) \n\t"
"lw %[temp2], 8(%[src]) \n\t"
"lw %[temp3], 12(%[src]) \n\t"
"wsbh %[temp0], %[temp0] \n\t"
"wsbh %[temp1], %[temp1] \n\t"
"wsbh %[temp2], %[temp2] \n\t"
"wsbh %[temp3], %[temp3] \n\t"
"addiu %[src], %[src], 16 \n\t"
"balign %[temp0], %[temp0], 1 \n\t"
"balign %[temp1], %[temp1], 1 \n\t"
"balign %[temp2], %[temp2], 1 \n\t"
"balign %[temp3], %[temp3], 1 \n\t"
"usw %[temp0], 0(%[dst]) \n\t"
"usw %[temp1], 4(%[dst]) \n\t"
"usw %[temp2], 8(%[dst]) \n\t"
"usw %[temp3], 12(%[dst]) \n\t"
"bne %[src], %[p_loop1_end], 0b \n\t"
" addiu %[dst], %[dst], 16 \n\t"
"3: \n\t"
"beq %[src], %[p_loop2_end], 2f \n\t"
" nop \n\t"
"1: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"wsbh %[temp0], %[temp0] \n\t"
"addiu %[src], %[src], 4 \n\t"
"balign %[temp0], %[temp0], 1 \n\t"
"usw %[temp0], 0(%[dst]) \n\t"
"bne %[src], %[p_loop2_end], 1b \n\t"
" addiu %[dst], %[dst], 4 \n\t"
"2: \n\t"
".set pop \n\t"
: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [dst]"+&r"(dst), [src]"+&r"(src)
: [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end)
: "memory"
);
}
static void ConvertBGRAToRGBA4444(const uint32_t* src,
int num_pixels, uint8_t* dst) {
int temp0, temp1, temp2, temp3, temp4, temp5;
const uint32_t* const p_loop1_end = src + (num_pixels & ~3);
const uint32_t* const p_loop2_end = src + num_pixels;
__asm__ volatile (
".set push \n\t"
".set noreorder \n\t"
"beq %[src], %[p_loop1_end], 3f \n\t"
" nop \n\t"
"0: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"lw %[temp1], 4(%[src]) \n\t"
"lw %[temp2], 8(%[src]) \n\t"
"lw %[temp3], 12(%[src]) \n\t"
"ext %[temp4], %[temp0], 28, 4 \n\t"
"ext %[temp5], %[temp0], 12, 4 \n\t"
"ins %[temp0], %[temp4], 0, 4 \n\t"
"ext %[temp4], %[temp1], 28, 4 \n\t"
"ins %[temp0], %[temp5], 16, 4 \n\t"
"ext %[temp5], %[temp1], 12, 4 \n\t"
"ins %[temp1], %[temp4], 0, 4 \n\t"
"ext %[temp4], %[temp2], 28, 4 \n\t"
"ins %[temp1], %[temp5], 16, 4 \n\t"
"ext %[temp5], %[temp2], 12, 4 \n\t"
"ins %[temp2], %[temp4], 0, 4 \n\t"
"ext %[temp4], %[temp3], 28, 4 \n\t"
"ins %[temp2], %[temp5], 16, 4 \n\t"
"ext %[temp5], %[temp3], 12, 4 \n\t"
"ins %[temp3], %[temp4], 0, 4 \n\t"
"precr.qb.ph %[temp1], %[temp1], %[temp0] \n\t"
"ins %[temp3], %[temp5], 16, 4 \n\t"
"addiu %[src], %[src], 16 \n\t"
"precr.qb.ph %[temp3], %[temp3], %[temp2] \n\t"
#ifdef WEBP_SWAP_16BIT_CSP
"usw %[temp1], 0(%[dst]) \n\t"
"usw %[temp3], 4(%[dst]) \n\t"
#else
"wsbh %[temp1], %[temp1] \n\t"
"wsbh %[temp3], %[temp3] \n\t"
"usw %[temp1], 0(%[dst]) \n\t"
"usw %[temp3], 4(%[dst]) \n\t"
#endif
"bne %[src], %[p_loop1_end], 0b \n\t"
" addiu %[dst], %[dst], 8 \n\t"
"3: \n\t"
"beq %[src], %[p_loop2_end], 2f \n\t"
" nop \n\t"
"1: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"ext %[temp4], %[temp0], 28, 4 \n\t"
"ext %[temp5], %[temp0], 12, 4 \n\t"
"ins %[temp0], %[temp4], 0, 4 \n\t"
"ins %[temp0], %[temp5], 16, 4 \n\t"
"addiu %[src], %[src], 4 \n\t"
"precr.qb.ph %[temp0], %[temp0], %[temp0] \n\t"
#ifdef WEBP_SWAP_16BIT_CSP
"ush %[temp0], 0(%[dst]) \n\t"
#else
"wsbh %[temp0], %[temp0] \n\t"
"ush %[temp0], 0(%[dst]) \n\t"
#endif
"bne %[src], %[p_loop2_end], 1b \n\t"
" addiu %[dst], %[dst], 2 \n\t"
"2: \n\t"
".set pop \n\t"
: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
[dst]"+&r"(dst), [src]"+&r"(src)
: [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end)
: "memory"
);
}
static void ConvertBGRAToRGB565(const uint32_t* src,
int num_pixels, uint8_t* dst) {
int temp0, temp1, temp2, temp3, temp4, temp5;
const uint32_t* const p_loop1_end = src + (num_pixels & ~3);
const uint32_t* const p_loop2_end = src + num_pixels;
__asm__ volatile (
".set push \n\t"
".set noreorder \n\t"
"beq %[src], %[p_loop1_end], 3f \n\t"
" nop \n\t"
"0: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"lw %[temp1], 4(%[src]) \n\t"
"lw %[temp2], 8(%[src]) \n\t"
"lw %[temp3], 12(%[src]) \n\t"
"ext %[temp4], %[temp0], 8, 16 \n\t"
"ext %[temp5], %[temp0], 5, 11 \n\t"
"ext %[temp0], %[temp0], 3, 5 \n\t"
"ins %[temp4], %[temp5], 0, 11 \n\t"
"ext %[temp5], %[temp1], 5, 11 \n\t"
"ins %[temp4], %[temp0], 0, 5 \n\t"
"ext %[temp0], %[temp1], 8, 16 \n\t"
"ext %[temp1], %[temp1], 3, 5 \n\t"
"ins %[temp0], %[temp5], 0, 11 \n\t"
"ext %[temp5], %[temp2], 5, 11 \n\t"
"ins %[temp0], %[temp1], 0, 5 \n\t"
"ext %[temp1], %[temp2], 8, 16 \n\t"
"ext %[temp2], %[temp2], 3, 5 \n\t"
"ins %[temp1], %[temp5], 0, 11 \n\t"
"ext %[temp5], %[temp3], 5, 11 \n\t"
"ins %[temp1], %[temp2], 0, 5 \n\t"
"ext %[temp2], %[temp3], 8, 16 \n\t"
"ext %[temp3], %[temp3], 3, 5 \n\t"
"ins %[temp2], %[temp5], 0, 11 \n\t"
"append %[temp0], %[temp4], 16 \n\t"
"ins %[temp2], %[temp3], 0, 5 \n\t"
"addiu %[src], %[src], 16 \n\t"
"append %[temp2], %[temp1], 16 \n\t"
#ifdef WEBP_SWAP_16BIT_CSP
"usw %[temp0], 0(%[dst]) \n\t"
"usw %[temp2], 4(%[dst]) \n\t"
#else
"wsbh %[temp0], %[temp0] \n\t"
"wsbh %[temp2], %[temp2] \n\t"
"usw %[temp0], 0(%[dst]) \n\t"
"usw %[temp2], 4(%[dst]) \n\t"
#endif
"bne %[src], %[p_loop1_end], 0b \n\t"
" addiu %[dst], %[dst], 8 \n\t"
"3: \n\t"
"beq %[src], %[p_loop2_end], 2f \n\t"
" nop \n\t"
"1: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"ext %[temp4], %[temp0], 8, 16 \n\t"
"ext %[temp5], %[temp0], 5, 11 \n\t"
"ext %[temp0], %[temp0], 3, 5 \n\t"
"ins %[temp4], %[temp5], 0, 11 \n\t"
"addiu %[src], %[src], 4 \n\t"
"ins %[temp4], %[temp0], 0, 5 \n\t"
#ifdef WEBP_SWAP_16BIT_CSP
"ush %[temp4], 0(%[dst]) \n\t"
#else
"wsbh %[temp4], %[temp4] \n\t"
"ush %[temp4], 0(%[dst]) \n\t"
#endif
"bne %[src], %[p_loop2_end], 1b \n\t"
" addiu %[dst], %[dst], 2 \n\t"
"2: \n\t"
".set pop \n\t"
: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5),
[dst]"+&r"(dst), [src]"+&r"(src)
: [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end)
: "memory"
);
}
static void ConvertBGRAToBGR(const uint32_t* src,
int num_pixels, uint8_t* dst) {
int temp0, temp1, temp2, temp3;
const uint32_t* const p_loop1_end = src + (num_pixels & ~3);
const uint32_t* const p_loop2_end = src + num_pixels;
__asm__ volatile (
".set push \n\t"
".set noreorder \n\t"
"beq %[src], %[p_loop1_end], 3f \n\t"
" nop \n\t"
"0: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"lw %[temp1], 4(%[src]) \n\t"
"lw %[temp2], 8(%[src]) \n\t"
"lw %[temp3], 12(%[src]) \n\t"
"ins %[temp0], %[temp1], 24, 8 \n\t"
"sra %[temp1], %[temp1], 8 \n\t"
"ins %[temp1], %[temp2], 16, 16 \n\t"
"sll %[temp2], %[temp2], 8 \n\t"
"balign %[temp3], %[temp2], 1 \n\t"
"addiu %[src], %[src], 16 \n\t"
"usw %[temp0], 0(%[dst]) \n\t"
"usw %[temp1], 4(%[dst]) \n\t"
"usw %[temp3], 8(%[dst]) \n\t"
"bne %[src], %[p_loop1_end], 0b \n\t"
" addiu %[dst], %[dst], 12 \n\t"
"3: \n\t"
"beq %[src], %[p_loop2_end], 2f \n\t"
" nop \n\t"
"1: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"addiu %[src], %[src], 4 \n\t"
"addiu %[dst], %[dst], 3 \n\t"
"ush %[temp0], -3(%[dst]) \n\t"
"sra %[temp0], %[temp0], 16 \n\t"
"bne %[src], %[p_loop2_end], 1b \n\t"
" sb %[temp0], -1(%[dst]) \n\t"
"2: \n\t"
".set pop \n\t"
: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [dst]"+&r"(dst), [src]"+&r"(src)
: [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end)
: "memory"
);
}
//------------------------------------------------------------------------------
// Entry point
extern void VP8LDspInitMIPSdspR2(void);
WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitMIPSdspR2(void) {
VP8LMapColor32b = MapARGB;
VP8LMapColor8b = MapAlpha;
VP8LPredictors[5] = Predictor5;
VP8LPredictors[6] = Predictor6;
VP8LPredictors[7] = Predictor7;
VP8LPredictors[8] = Predictor8;
VP8LPredictors[9] = Predictor9;
VP8LPredictors[10] = Predictor10;
VP8LPredictors[11] = Predictor11;
VP8LPredictors[12] = Predictor12;
VP8LPredictors[13] = Predictor13;
VP8LAddGreenToBlueAndRed = AddGreenToBlueAndRed;
VP8LTransformColorInverse = TransformColorInverse;
VP8LConvertBGRAToRGB = ConvertBGRAToRGB;
VP8LConvertBGRAToRGBA = ConvertBGRAToRGBA;
VP8LConvertBGRAToRGBA4444 = ConvertBGRAToRGBA4444;
VP8LConvertBGRAToRGB565 = ConvertBGRAToRGB565;
VP8LConvertBGRAToBGR = ConvertBGRAToBGR;
}
#else // !WEBP_USE_MIPS_DSP_R2
WEBP_DSP_INIT_STUB(VP8LDspInitMIPSdspR2)
#endif // WEBP_USE_MIPS_DSP_R2