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MIPS: dspr2: added optimization for function GetResidualCost

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set/get residual C functions moved to new file in src/dsp
mips32 version of GetResidualCost moved to new file

Change-Id: I7cebb7933a89820ff28c187249a9181f281081d2
This commit is contained in:
Pascal Massimino 2015-02-07 02:13:26 -08:00
parent be6635e91d
commit a987faedfa
13 changed files with 392 additions and 226 deletions
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3
Android.mk
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@ -38,6 +38,9 @@ LOCAL_SRC_FILES := \
src/dsp/argb.c \
src/dsp/argb_mips_dsp_r2.c \
src/dsp/argb_sse2.c \
src/dsp/cost.c \
src/dsp/cost_mips32.c \
src/dsp/cost_mips_dsp_r2.c \
src/dsp/cpu.c \
src/dsp/dec.c \
src/dsp/dec_clip_tables.c \

3
Makefile.vc
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@ -219,6 +219,9 @@ DSP_ENC_OBJS = \
$(DIROBJ)\dsp\argb.obj \
$(DIROBJ)\dsp\argb_mips_dsp_r2.obj \
$(DIROBJ)\dsp\argb_sse2.obj \
$(DIROBJ)\dsp\cost.obj \
$(DIROBJ)\dsp\cost_mips32.obj \
$(DIROBJ)\dsp\cost_mips_dsp_r2.obj \
$(DIROBJ)\dsp\enc.obj \
$(DIROBJ)\dsp\enc_avx2.obj \
$(DIROBJ)\dsp\enc_mips32.obj \

3
makefile.unix
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@ -143,6 +143,9 @@ DSP_ENC_OBJS = \
src/dsp/argb.o \
src/dsp/argb_mips_dsp_r2.o \
src/dsp/argb_sse2.o \
src/dsp/cost.o \
src/dsp/cost_mips32.o \
src/dsp/cost_mips_dsp_r2.o \
src/dsp/enc.o \
src/dsp/enc_avx2.o \
src/dsp/enc_mips32.o \

3
src/dsp/Makefile.am
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@ -41,6 +41,9 @@ COMMON_SOURCES += yuv_mips_dsp_r2.c
ENC_SOURCES =
ENC_SOURCES += argb.c
ENC_SOURCES += argb_mips_dsp_r2.c
ENC_SOURCES += cost.c
ENC_SOURCES += cost_mips32.c
ENC_SOURCES += cost_mips_dsp_r2.c
ENC_SOURCES += enc.c
ENC_SOURCES += enc_mips32.c
ENC_SOURCES += enc_mips_dsp_r2.c

105
src/dsp/cost.c Normal file
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@ -0,0 +1,105 @@
// 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.
// -----------------------------------------------------------------------------
//
// Author: Skal (pascal.massimino@gmail.com)
#include "./dsp.h"
#include "../enc/cost.h"
//------------------------------------------------------------------------------
// Mode costs
static int GetResidualCost(int ctx0, const VP8Residual* const res) {
int n = res->first;
// should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1
const int p0 = res->prob[n][ctx0][0];
const uint16_t* t = res->cost[n][ctx0];
// bit_cost(1, p0) is already incorporated in t[] tables, but only if ctx != 0
// (as required by the syntax). For ctx0 == 0, we need to add it here or it'll
// be missing during the loop.
int cost = (ctx0 == 0) ? VP8BitCost(1, p0) : 0;
if (res->last < 0) {
return VP8BitCost(0, p0);
}
for (; n < res->last; ++n) {
const int v = abs(res->coeffs[n]);
const int b = VP8EncBands[n + 1];
const int ctx = (v >= 2) ? 2 : v;
cost += VP8LevelCost(t, v);
t = res->cost[b][ctx];
}
// Last coefficient is always non-zero
{
const int v = abs(res->coeffs[n]);
assert(v != 0);
cost += VP8LevelCost(t, v);
if (n < 15) {
const int b = VP8EncBands[n + 1];
const int ctx = (v == 1) ? 1 : 2;
const int last_p0 = res->prob[b][ctx][0];
cost += VP8BitCost(0, last_p0);
}
}
return cost;
}
static void SetResidualCoeffs(const int16_t* const coeffs,
VP8Residual* const res) {
int n;
res->last = -1;
assert(res->first == 0 || coeffs[0] == 0);
for (n = 15; n >= 0; --n) {
if (coeffs[n]) {
res->last = n;
break;
}
}
res->coeffs = coeffs;
}
//------------------------------------------------------------------------------
// init function
VP8GetResidualCostFunc VP8GetResidualCost;
VP8SetResidualCoeffsFunc VP8SetResidualCoeffs;
extern void VP8EncDspCostInitMIPS32(void);
extern void VP8EncDspCostInitMIPSdspR2(void);
#if defined(WEBP_USE_SSE2)
extern void VP8SetResidualCoeffsSSE2(const int16_t* const coeffs,
VP8Residual* const res);
#endif // WEBP_USE_SSE2
void VP8EncDspCostInit(void) {
VP8GetResidualCost = GetResidualCost;
VP8SetResidualCoeffs = SetResidualCoeffs;
// If defined, use CPUInfo() to overwrite some pointers with faster versions.
if (VP8GetCPUInfo != NULL) {
#if defined(WEBP_USE_MIPS32)
if (VP8GetCPUInfo(kMIPS32)) {
VP8EncDspCostInitMIPS32();
}
#endif
#if defined(WEBP_USE_MIPS_DSP_R2)
if (VP8GetCPUInfo(kMIPSdspR2)) {
VP8EncDspCostInitMIPSdspR2();
}
#endif
#if defined(WEBP_USE_SSE2)
if (VP8GetCPUInfo(kSSE2)) {
VP8SetResidualCoeffs = VP8SetResidualCoeffsSSE2;
}
#endif
}
}
//------------------------------------------------------------------------------

141
src/dsp/cost_mips32.c Normal file
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@ -0,0 +1,141 @@
// 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.
// -----------------------------------------------------------------------------
//
// Author: Djordje Pesut (djordje.pesut@imgtec.com)
#include "./dsp.h"
#if defined(WEBP_USE_MIPS32)
#include "../enc/cost.h"
static int GetResidualCost(int ctx0, const VP8Residual* const res) {
int n = res->first;
// should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1
int p0 = res->prob[n][ctx0][0];
const uint16_t* t = res->cost[n][ctx0];
int cost;
const int const_2 = 2;
const int const_255 = 255;
const int const_max_level = MAX_VARIABLE_LEVEL;
int res_cost;
int res_prob;
int res_coeffs;
int res_last;
int v_reg;
int b_reg;
int ctx_reg;
int cost_add, temp_1, temp_2, temp_3;
if (res->last < 0) {
return VP8BitCost(0, p0);
}
cost = (ctx0 == 0) ? VP8BitCost(1, p0) : 0;
res_cost = (int)res->cost;
res_prob = (int)res->prob;
res_coeffs = (int)res->coeffs;
res_last = (int)res->last;
__asm__ volatile(
".set push \n\t"
".set noreorder \n\t"
"sll %[temp_1], %[n], 1 \n\t"
"addu %[res_coeffs], %[res_coeffs], %[temp_1] \n\t"
"slt %[temp_2], %[n], %[res_last] \n\t"
"bnez %[temp_2], 1f \n\t"
" li %[cost_add], 0 \n\t"
"b 2f \n\t"
" nop \n\t"
"1: \n\t"
"lh %[v_reg], 0(%[res_coeffs]) \n\t"
"addu %[b_reg], %[n], %[VP8EncBands] \n\t"
"move %[temp_1], %[const_max_level] \n\t"
"addu %[cost], %[cost], %[cost_add] \n\t"
"negu %[temp_2], %[v_reg] \n\t"
"slti %[temp_3], %[v_reg], 0 \n\t"
"movn %[v_reg], %[temp_2], %[temp_3] \n\t"
"lbu %[b_reg], 1(%[b_reg]) \n\t"
"li %[cost_add], 0 \n\t"
"sltiu %[temp_3], %[v_reg], 2 \n\t"
"move %[ctx_reg], %[v_reg] \n\t"
"movz %[ctx_reg], %[const_2], %[temp_3] \n\t"
// cost += VP8LevelCost(t, v);
"slt %[temp_3], %[v_reg], %[const_max_level] \n\t"
"movn %[temp_1], %[v_reg], %[temp_3] \n\t"
"sll %[temp_2], %[v_reg], 1 \n\t"
"addu %[temp_2], %[temp_2], %[VP8LevelFixedCosts] \n\t"
"lhu %[temp_2], 0(%[temp_2]) \n\t"
"sll %[temp_1], %[temp_1], 1 \n\t"
"addu %[temp_1], %[temp_1], %[t] \n\t"
"lhu %[temp_3], 0(%[temp_1]) \n\t"
"addu %[cost], %[cost], %[temp_2] \n\t"
// t = res->cost[b][ctx];
"sll %[temp_1], %[ctx_reg], 7 \n\t"
"sll %[temp_2], %[ctx_reg], 3 \n\t"
"addu %[cost], %[cost], %[temp_3] \n\t"
"addu %[temp_1], %[temp_1], %[temp_2] \n\t"
"sll %[temp_2], %[b_reg], 3 \n\t"
"sll %[temp_3], %[b_reg], 5 \n\t"
"sub %[temp_2], %[temp_3], %[temp_2] \n\t"
"sll %[temp_3], %[temp_2], 4 \n\t"
"addu %[temp_1], %[temp_1], %[temp_3] \n\t"
"addu %[temp_2], %[temp_2], %[res_cost] \n\t"
"addiu %[n], %[n], 1 \n\t"
"addu %[t], %[temp_1], %[temp_2] \n\t"
"slt %[temp_1], %[n], %[res_last] \n\t"
"bnez %[temp_1], 1b \n\t"
" addiu %[res_coeffs], %[res_coeffs], 2 \n\t"
"2: \n\t"
".set pop \n\t"
: [cost]"+r"(cost), [t]"+r"(t), [n]"+r"(n), [v_reg]"=&r"(v_reg),
[ctx_reg]"=&r"(ctx_reg), [b_reg]"=&r"(b_reg), [cost_add]"=&r"(cost_add),
[temp_1]"=&r"(temp_1), [temp_2]"=&r"(temp_2), [temp_3]"=&r"(temp_3)
: [const_2]"r"(const_2), [const_255]"r"(const_255), [res_last]"r"(res_last),
[VP8EntropyCost]"r"(VP8EntropyCost), [VP8EncBands]"r"(VP8EncBands),
[const_max_level]"r"(const_max_level), [res_prob]"r"(res_prob),
[VP8LevelFixedCosts]"r"(VP8LevelFixedCosts), [res_coeffs]"r"(res_coeffs),
[res_cost]"r"(res_cost)
: "memory"
);
// Last coefficient is always non-zero
{
const int v = abs(res->coeffs[n]);
assert(v != 0);
cost += VP8LevelCost(t, v);
if (n < 15) {
const int b = VP8EncBands[n + 1];
const int ctx = (v == 1) ? 1 : 2;
const int last_p0 = res->prob[b][ctx][0];
cost += VP8BitCost(0, last_p0);
}
}
return cost;
}
#endif // WEBP_USE_MIPS32
//------------------------------------------------------------------------------
// Entry point
extern WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitMIPS32(void);
void VP8EncDspCostInitMIPS32(void) {
#if defined(WEBP_USE_MIPS32)
VP8GetResidualCost = GetResidualCost;
#endif // WEBP_USE_MIPS32
}
//------------------------------------------------------------------------------

112
src/dsp/cost_mips_dsp_r2.c Normal file
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@ -0,0 +1,112 @@
// 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.
// -----------------------------------------------------------------------------
//
// Author: Djordje Pesut (djordje.pesut@imgtec.com)
#include "./dsp.h"
#if defined(WEBP_USE_MIPS_DSP_R2)
#include "../enc/cost.h"
static int GetResidualCost(int ctx0, const VP8Residual* const res) {
int temp0, temp1, temp2;
int v_reg, b_reg, ctx_reg;
int n = res->first;
// should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1
int p0 = res->prob[n][ctx0][0];
const uint16_t* t = res->cost[n][ctx0];
// bit_cost(1, p0) is already incorporated in t[] tables, but only if ctx != 0
// (as required by the syntax). For ctx0 == 0, we need to add it here or it'll
// be missing during the loop.
int cost = (ctx0 == 0) ? VP8BitCost(1, p0) : 0;
int res_cost = (int)res->cost;
int res_coeffs = (int)res->coeffs;
int res_last = (int)res->last;
const int const_max_level = MAX_VARIABLE_LEVEL;
const int const_2 = 2;
const int const_408 = 408;
int mult_136_408 = 136;
if (res->last < 0) {
return VP8BitCost(0, p0);
}
__asm__ volatile(
".set push \n\t"
".set noreorder \n\t"
"subu %[temp1], %[res_last], %[n] \n\t"
"blez %[temp1], 2f \n\t"
" ins %[mult_136_408], %[const_408], 16, 16 \n\t"
"1: \n\t"
"sll %[temp0], %[n], 1 \n\t"
"lhx %[v_reg], %[temp0](%[res_coeffs]) \n\t"
"addiu %[n], %[n], 1 \n\t"
"absq_s.w %[v_reg], %[v_reg] \n\t"
"lbux %[b_reg], %[n](%[VP8EncBands]) \n\t"
"sltiu %[temp2], %[v_reg], 2 \n\t"
"move %[ctx_reg], %[v_reg] \n\t"
"movz %[ctx_reg], %[const_2], %[temp2] \n\t"
"sll %[temp1], %[v_reg], 1 \n\t"
"lhx %[temp1], %[temp1](%[VP8LevelFixedCosts]) \n\t"
"slt %[temp2], %[v_reg], %[const_max_level] \n\t"
"ins %[ctx_reg], %[b_reg], 16, 16 \n\t"
"movz %[v_reg], %[const_max_level], %[temp2] \n\t"
"mul.ph %[temp0], %[ctx_reg], %[mult_136_408] \n\t"
"addu %[cost], %[cost], %[temp1] \n\t"
"sll %[v_reg], %[v_reg], 1 \n\t"
"lhx %[temp2], %[v_reg](%[t]) \n\t"
"ext %[temp1], %[temp0], 0, 16 \n\t"
"ext %[temp0], %[temp0], 16, 16 \n\t"
"addu %[cost], %[cost], %[temp2] \n\t"
"addu %[temp1], %[temp1], %[res_cost] \n\t"
"bne %[n], %[res_last], 1b \n\t"
" addu %[t], %[temp0], %[temp1] \n\t"
"2: \n\t"
".set pop \n\t"
: [cost]"+&r"(cost), [t]"+&r"(t), [n]"+&r"(n), [v_reg]"=&r"(v_reg),
[ctx_reg]"=&r"(ctx_reg), [b_reg]"=&r"(b_reg), [temp0]"=&r"(temp0),
[temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[mult_136_408]"+&r"(mult_136_408)
: [const_2]"r"(const_2), [res_last]"r"(res_last),
[VP8EncBands]"r"(VP8EncBands), [const_max_level]"r"(const_max_level),
[VP8LevelFixedCosts]"r"(VP8LevelFixedCosts), [res_cost]"r"(res_cost),
[const_408]"r"(const_408), [res_coeffs]"r"(res_coeffs)
: "memory"
);
// Last coefficient is always non-zero
{
const int v = abs(res->coeffs[n]);
assert(v != 0);
cost += VP8LevelCost(t, v);
if (n < 15) {
const int b = VP8EncBands[n + 1];
const int ctx = (v == 1) ? 1 : 2;
const int last_p0 = res->prob[b][ctx][0];
cost += VP8BitCost(0, last_p0);
}
}
return cost;
}
#endif // WEBP_USE_MIPS_DSP_R2
//------------------------------------------------------------------------------
// Entry point
extern WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspCostInitMIPSdspR2(void);
void VP8EncDspCostInitMIPSdspR2(void) {
#if defined(WEBP_USE_MIPS_DSP_R2)
VP8GetResidualCost = GetResidualCost;
#endif // WEBP_USE_MIPS_DSP_R2
}
//------------------------------------------------------------------------------

15
src/dsp/dsp.h
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@ -176,6 +176,21 @@ void VP8LSetHistogramData(const int distribution[MAX_COEFF_THRESH + 1],
// must be called before using any of the above
WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInit(void);
//------------------------------------------------------------------------------
// cost functions (encoding)
struct VP8Residual;
typedef void (*VP8SetResidualCoeffsFunc)(const int16_t* const coeffs,
struct VP8Residual* const res);
extern VP8SetResidualCoeffsFunc VP8SetResidualCoeffs;
// Cost calculation function.
typedef int (*VP8GetResidualCostFunc)(int ctx0,
const struct VP8Residual* const res);
extern VP8GetResidualCostFunc VP8GetResidualCost;
void VP8EncDspCostInit(void); // must be called first
//------------------------------------------------------------------------------
// Decoding

113
src/dsp/enc_mips32.c
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@ -513,119 +513,6 @@ static void FTransform(const uint8_t* src, const uint8_t* ref, int16_t* out) {
#undef VERTICAL_PASS
#undef HORIZONTAL_PASS
// Forward declaration.
extern int VP8GetResidualCostMIPS32(int ctx0, const VP8Residual* const res);
int VP8GetResidualCostMIPS32(int ctx0, const VP8Residual* const res) {
int n = res->first;
// should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1
int p0 = res->prob[n][ctx0][0];
const uint16_t* t = res->cost[n][ctx0];
int cost;
const int const_2 = 2;
const int const_255 = 255;
const int const_max_level = MAX_VARIABLE_LEVEL;
int res_cost;
int res_prob;
int res_coeffs;
int res_last;
int v_reg;
int b_reg;
int ctx_reg;
int cost_add, temp_1, temp_2, temp_3;
if (res->last < 0) {
return VP8BitCost(0, p0);
}
cost = (ctx0 == 0) ? VP8BitCost(1, p0) : 0;
res_cost = (int)res->cost;
res_prob = (int)res->prob;
res_coeffs = (int)res->coeffs;
res_last = (int)res->last;
__asm__ volatile(
".set push \n\t"
".set noreorder \n\t"
"sll %[temp_1], %[n], 1 \n\t"
"addu %[res_coeffs], %[res_coeffs], %[temp_1] \n\t"
"slt %[temp_2], %[n], %[res_last] \n\t"
"bnez %[temp_2], 1f \n\t"
" li %[cost_add], 0 \n\t"
"b 2f \n\t"
" nop \n\t"
"1: \n\t"
"lh %[v_reg], 0(%[res_coeffs]) \n\t"
"addu %[b_reg], %[n], %[VP8EncBands] \n\t"
"move %[temp_1], %[const_max_level] \n\t"
"addu %[cost], %[cost], %[cost_add] \n\t"
"negu %[temp_2], %[v_reg] \n\t"
"slti %[temp_3], %[v_reg], 0 \n\t"
"movn %[v_reg], %[temp_2], %[temp_3] \n\t"
"lbu %[b_reg], 1(%[b_reg]) \n\t"
"li %[cost_add], 0 \n\t"
"sltiu %[temp_3], %[v_reg], 2 \n\t"
"move %[ctx_reg], %[v_reg] \n\t"
"movz %[ctx_reg], %[const_2], %[temp_3] \n\t"
// cost += VP8LevelCost(t, v);
"slt %[temp_3], %[v_reg], %[const_max_level] \n\t"
"movn %[temp_1], %[v_reg], %[temp_3] \n\t"
"sll %[temp_2], %[v_reg], 1 \n\t"
"addu %[temp_2], %[temp_2], %[VP8LevelFixedCosts] \n\t"
"lhu %[temp_2], 0(%[temp_2]) \n\t"
"sll %[temp_1], %[temp_1], 1 \n\t"
"addu %[temp_1], %[temp_1], %[t] \n\t"
"lhu %[temp_3], 0(%[temp_1]) \n\t"
"addu %[cost], %[cost], %[temp_2] \n\t"
// t = res->cost[b][ctx];
"sll %[temp_1], %[ctx_reg], 7 \n\t"
"sll %[temp_2], %[ctx_reg], 3 \n\t"
"addu %[cost], %[cost], %[temp_3] \n\t"
"addu %[temp_1], %[temp_1], %[temp_2] \n\t"
"sll %[temp_2], %[b_reg], 3 \n\t"
"sll %[temp_3], %[b_reg], 5 \n\t"
"sub %[temp_2], %[temp_3], %[temp_2] \n\t"
"sll %[temp_3], %[temp_2], 4 \n\t"
"addu %[temp_1], %[temp_1], %[temp_3] \n\t"
"addu %[temp_2], %[temp_2], %[res_cost] \n\t"
"addiu %[n], %[n], 1 \n\t"
"addu %[t], %[temp_1], %[temp_2] \n\t"
"slt %[temp_1], %[n], %[res_last] \n\t"
"bnez %[temp_1], 1b \n\t"
" addiu %[res_coeffs], %[res_coeffs], 2 \n\t"
"2: \n\t"
".set pop \n\t"
: [cost]"+r"(cost), [t]"+r"(t), [n]"+r"(n), [v_reg]"=&r"(v_reg),
[ctx_reg]"=&r"(ctx_reg), [b_reg]"=&r"(b_reg), [cost_add]"=&r"(cost_add),
[temp_1]"=&r"(temp_1), [temp_2]"=&r"(temp_2), [temp_3]"=&r"(temp_3)
: [const_2]"r"(const_2), [const_255]"r"(const_255), [res_last]"r"(res_last),
[VP8EntropyCost]"r"(VP8EntropyCost), [VP8EncBands]"r"(VP8EncBands),
[const_max_level]"r"(const_max_level), [res_prob]"r"(res_prob),
[VP8LevelFixedCosts]"r"(VP8LevelFixedCosts), [res_coeffs]"r"(res_coeffs),
[res_cost]"r"(res_cost)
: "memory"
);
// Last coefficient is always non-zero
{
const int v = abs(res->coeffs[n]);
assert(v != 0);
cost += VP8LevelCost(t, v);
if (n < 15) {
const int b = VP8EncBands[n + 1];
const int ctx = (v == 1) ? 1 : 2;
const int last_p0 = res->prob[b][ctx][0];
cost += VP8BitCost(0, last_p0);
}
}
return cost;
}
#if !defined(WORK_AROUND_GCC)
#define GET_SSE_INNER(A, B, C, D) \

95
src/enc/cost.c
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@ -486,66 +486,6 @@ const uint16_t VP8FixedCostsI4[NUM_BMODES][NUM_BMODES][NUM_BMODES] = {
{ 305, 1167, 1358, 899, 1587, 1587, 987, 1988, 1332, 501 } }
};
//------------------------------------------------------------------------------
// Mode costs
static int GetResidualCost(int ctx0, const VP8Residual* const res) {
int n = res->first;
// should be prob[VP8EncBands[n]], but it's equivalent for n=0 or 1
const int p0 = res->prob[n][ctx0][0];
const uint16_t* t = res->cost[n][ctx0];
// bit_cost(1, p0) is already incorporated in t[] tables, but only if ctx != 0
// (as required by the syntax). For ctx0 == 0, we need to add it here or it'll
// be missing during the loop.
int cost = (ctx0 == 0) ? VP8BitCost(1, p0) : 0;
if (res->last < 0) {
return VP8BitCost(0, p0);
}
for (; n < res->last; ++n) {
const int v = abs(res->coeffs[n]);
const int b = VP8EncBands[n + 1];
const int ctx = (v >= 2) ? 2 : v;
cost += VP8LevelCost(t, v);
t = res->cost[b][ctx];
}
// Last coefficient is always non-zero
{
const int v = abs(res->coeffs[n]);
assert(v != 0);
cost += VP8LevelCost(t, v);
if (n < 15) {
const int b = VP8EncBands[n + 1];
const int ctx = (v == 1) ? 1 : 2;
const int last_p0 = res->prob[b][ctx][0];
cost += VP8BitCost(0, last_p0);
}
}
return cost;
}
//------------------------------------------------------------------------------
// init function
#if defined(WEBP_USE_MIPS32)
extern int VP8GetResidualCostMIPS32(int ctx0, const VP8Residual* const res);
#endif // WEBP_USE_MIPS32
// TODO(skal): this, and GetResidualCost(), should probably go somewhere
// under src/dsp/ at some point.
VP8GetResidualCostFunc VP8GetResidualCost;
void VP8GetResidualCostInit(void) {
VP8GetResidualCost = GetResidualCost;
if (VP8GetCPUInfo != NULL) {
#if defined(WEBP_USE_MIPS32)
if (VP8GetCPUInfo(kMIPS32)) {
VP8GetResidualCost = VP8GetResidualCostMIPS32;
}
#endif
}
}
//------------------------------------------------------------------------------
// helper functions for residuals struct VP8Residual.
@ -558,41 +498,6 @@ void VP8InitResidual(int first, int coeff_type,
res->first = first;
}
static void SetResidualCoeffs(const int16_t* const coeffs,
VP8Residual* const res) {
int n;
res->last = -1;
assert(res->first == 0 || coeffs[0] == 0);
for (n = 15; n >= 0; --n) {
if (coeffs[n]) {
res->last = n;
break;
}
}
res->coeffs = coeffs;
}
//------------------------------------------------------------------------------
// init function
#if defined(WEBP_USE_SSE2)
extern void VP8SetResidualCoeffsSSE2(const int16_t* const coeffs,
VP8Residual* const res);
#endif // WEBP_USE_SSE2
VP8SetResidualCoeffsFunc VP8SetResidualCoeffs;
void VP8SetResidualCoeffsInit(void) {
VP8SetResidualCoeffs = SetResidualCoeffs;
if (VP8GetCPUInfo != NULL) {
#if defined(WEBP_USE_SSE2)
if (VP8GetCPUInfo(kSSE2)) {
VP8SetResidualCoeffs = VP8SetResidualCoeffsSSE2;
}
#endif
}
}
//------------------------------------------------------------------------------
// Mode costs

17
src/enc/cost.h
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@ -24,7 +24,8 @@ extern "C" {
// On-the-fly info about the current set of residuals. Handy to avoid
// passing zillions of params.
typedef struct {
typedef struct VP8Residual VP8Residual;
struct VP8Residual {
int first;
int last;
const int16_t* coeffs;
@ -33,17 +34,11 @@ typedef struct {
ProbaArray* prob;
StatsArray* stats;
CostArray* cost;
} VP8Residual;
};
void VP8InitResidual(int first, int coeff_type,
VP8Encoder* const enc, VP8Residual* const res);
typedef void (*VP8SetResidualCoeffsFunc)(const int16_t* const coeffs,
VP8Residual* const res);
extern VP8SetResidualCoeffsFunc VP8SetResidualCoeffs;
void VP8SetResidualCoeffsInit(void); // must be called first
int VP8RecordCoeffs(int ctx, const VP8Residual* const res);
// approximate cost per level:
@ -55,12 +50,6 @@ static WEBP_INLINE int VP8BitCost(int bit, uint8_t proba) {
return !bit ? VP8EntropyCost[proba] : VP8EntropyCost[255 - proba];
}
// Cost calculation function.
typedef int (*VP8GetResidualCostFunc)(int ctx0, const VP8Residual* const res);
extern VP8GetResidualCostFunc VP8GetResidualCost;
void VP8GetResidualCostInit(void); // must be called first
// Level cost calculations
extern const uint16_t VP8LevelCodes[MAX_VARIABLE_LEVEL][2];
void VP8CalculateLevelCosts(VP8Proba* const proba);

3
src/enc/frame.c
View File

@ -14,8 +14,9 @@
#include <string.h>
#include <math.h>
#include "./vp8enci.h"
#include "./cost.h"
#include "./vp8enci.h"
#include "../dsp/dsp.h"
#include "../webp/format_constants.h" // RIFF constants
#define SEGMENT_VISU 0

5
src/enc/webpenc.c
View File

@ -16,9 +16,9 @@
#include <string.h>
#include <math.h>
#include "./cost.h"
#include "./vp8enci.h"
#include "./vp8li.h"
#include "./cost.h"
#include "../utils/utils.h"
// #define PRINT_MEMORY_INFO
@ -225,8 +225,7 @@ static VP8Encoder* InitVP8Encoder(const WebPConfig* const config,
ResetSegmentHeader(enc);
ResetFilterHeader(enc);
ResetBoundaryPredictions(enc);
VP8GetResidualCostInit();
VP8SetResidualCoeffsInit();
VP8EncDspCostInit();
VP8EncInitAlpha(enc);
// lower quality means smaller output -> we modulate a little the page