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MIPS: MIPS32r1: Optimization of some simple point-sampling functions. PATCH [6/6]

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Change-Id: I2020e71e9be5d17d4bf67cabf6c470ca43d5d838
This commit is contained in:
Djordje Pesut 2013-12-27 14:06:35 +01:00
parent 53520911c3
commit dd438c9a7d
7 changed files with 136 additions and 0 deletions
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1
Android.mk
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@ -29,6 +29,7 @@ LOCAL_SRC_FILES := \
src/dsp/enc_sse2.c \
src/dsp/lossless.c \
src/dsp/upsampling.c \
src/dsp/upsampling_mips32.c \
src/dsp/upsampling_sse2.c \
src/dsp/yuv.c \
src/enc/alpha.c \

1
Makefile.vc
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@ -174,6 +174,7 @@ DSP_DEC_OBJS = \
$(DIROBJ)\dsp\dec_sse2.obj \
$(DIROBJ)\dsp\lossless.obj \
$(DIROBJ)\dsp\upsampling.obj \
$(DIROBJ)\dsp\upsampling_mips32.obj \
$(DIROBJ)\dsp\upsampling_neon.obj \
$(DIROBJ)\dsp\upsampling_sse2.obj \
$(DIROBJ)\dsp\yuv.obj \

1
makefile.unix
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@ -105,6 +105,7 @@ DSP_DEC_OBJS = \
src/dsp/dec_sse2.o \
src/dsp/lossless.o \
src/dsp/upsampling.o \
src/dsp/upsampling_mips32.o \
src/dsp/upsampling_neon.o \
src/dsp/upsampling_sse2.o \
src/dsp/yuv.o \

1
src/dsp/Makefile.am
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@ -18,6 +18,7 @@ COMMON_SOURCES += dsp.h
COMMON_SOURCES += lossless.c
COMMON_SOURCES += lossless.h
COMMON_SOURCES += upsampling.c
COMMON_SOURCES += upsampling_mips32.c
COMMON_SOURCES += upsampling_neon.c
COMMON_SOURCES += upsampling_sse2.c
COMMON_SOURCES += yuv.c

3
src/dsp/dsp.h
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@ -189,6 +189,9 @@ typedef void (*WebPSampleLinePairFunc)(
// Sampling functions to convert YUV to RGB(A) modes
extern WebPSampleLinePairFunc WebPSamplers[/* MODE_LAST */];
// Initializes MIPS version of the samplers.
void WebPInitSamplersMIPS32(void);
// General function for converting two lines of ARGB or RGBA.
// 'alpha_is_last' should be true if 0xff000000 is stored in memory as
// as 0x00, 0x00, 0x00, 0xff (little endian).

5
src/dsp/upsampling.c
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@ -343,6 +343,11 @@ void WebPInitSamplers(void) {
// If defined, use CPUInfo() to overwrite some pointers with faster versions.
if (VP8GetCPUInfo != NULL) {
#if defined(WEBP_USE_MIPS32)
if (VP8GetCPUInfo(kMIPS32)) {
WebPInitSamplersMIPS32();
}
#endif // WEBP_USE_MIPS32
}
}

124
src/dsp/upsampling_mips32.c Normal file
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@ -0,0 +1,124 @@
// 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.
// -----------------------------------------------------------------------------
//
// MIPS version of YUV to RGB upsampling functions.
//
// Author(s): Djordje Pesut (djordje.pesut@imgtec.com)
// Jovan Zelincevic (jovan.zelincevic@imgtec.com)
#include "./dsp.h"
#if defined(WEBP_USE_MIPS32)
#include <assert.h>
#include <string.h>
#include "./yuv.h"
//------------------------------------------------------------------------------
// simple point-sampling
#define SAMPLE_FUNC_MIPS(FUNC_NAME, XSTEP, R, G, B, A) \
static void FUNC_NAME(const uint8_t* top_y, const uint8_t* bottom_y, \
const uint8_t* u, const uint8_t* v, \
uint8_t* top_dst, uint8_t* bottom_dst, int len) { \
int i, r, g, b; \
int temp0, temp1, temp2, temp3, temp4; \
for (i = 0; i < (len >> 1); i++) { \
temp1 = kVToR * v[0]; \
temp3 = kVToG * v[0]; \
temp2 = kUToG * u[0]; \
temp4 = kUToB * u[0]; \
temp0 = kYScale * top_y[0]; \
temp1 += kRCst; \
temp3 -= kGCst; \
temp2 += temp3; \
temp4 += kBCst; \
r = VP8Clip8(temp0 + temp1); \
g = VP8Clip8(temp0 - temp2); \
b = VP8Clip8(temp0 + temp4); \
temp0 = kYScale * top_y[1]; \
top_dst[R] = r; \
top_dst[G] = g; \
top_dst[B] = b; \
if (A) top_dst[A] = 0xff; \
r = VP8Clip8(temp0 + temp1); \
g = VP8Clip8(temp0 - temp2); \
b = VP8Clip8(temp0 + temp4); \
temp0 = kYScale * bottom_y[0]; \
top_dst[R + XSTEP] = r; \
top_dst[G + XSTEP] = g; \
top_dst[B + XSTEP] = b; \
if (A) top_dst[A + XSTEP] = 0xff; \
r = VP8Clip8(temp0 + temp1); \
g = VP8Clip8(temp0 - temp2); \
b = VP8Clip8(temp0 + temp4); \
temp0 = kYScale * bottom_y[1]; \
bottom_dst[R] = r; \
bottom_dst[G] = g; \
bottom_dst[B] = b; \
if (A) bottom_dst[A] = 0xff; \
r = VP8Clip8(temp0 + temp1); \
g = VP8Clip8(temp0 - temp2); \
b = VP8Clip8(temp0 + temp4); \
bottom_dst[R + XSTEP] = r; \
bottom_dst[G + XSTEP] = g; \
bottom_dst[B + XSTEP] = b; \
if (A) bottom_dst[A + XSTEP] = 0xff; \
top_y += 2; \
bottom_y += 2; \
u++; \
v++; \
top_dst += 2 * XSTEP; \
bottom_dst += 2 * XSTEP; \
} \
if (len & 1) { \
temp1 = kVToR * v[0]; \
temp3 = kVToG * v[0]; \
temp2 = kUToG * u[0]; \
temp4 = kUToB * u[0]; \
temp0 = kYScale * top_y[0]; \
temp1 += kRCst; \
temp3 -= kGCst; \
temp2 += temp3; \
temp4 += kBCst; \
r = VP8Clip8(temp0 + temp1); \
g = VP8Clip8(temp0 - temp2); \
b = VP8Clip8(temp0 + temp4); \
temp0 = kYScale * bottom_y[0]; \
top_dst[R] = r; \
top_dst[G] = g; \
top_dst[B] = b; \
if (A) top_dst[A] = 0xff; \
r = VP8Clip8(temp0 + temp1); \
g = VP8Clip8(temp0 - temp2); \
b = VP8Clip8(temp0 + temp4); \
bottom_dst[R] = r; \
bottom_dst[G] = g; \
bottom_dst[B] = b; \
if (A) bottom_dst[A] = 0xff; \
} \
}
SAMPLE_FUNC_MIPS(SampleRgbLinePairMIPS, 3, 0, 1, 2, 0)
SAMPLE_FUNC_MIPS(SampleRgbaLinePairMIPS, 4, 0, 1, 2, 3)
SAMPLE_FUNC_MIPS(SampleBgrLinePairMIPS, 3, 2, 1, 0, 0)
SAMPLE_FUNC_MIPS(SampleBgraLinePairMIPS, 4, 2, 1, 0, 3)
#endif // WEBP_USE_MIPS32
//------------------------------------------------------------------------------
void WebPInitSamplersMIPS32(void) {
#if defined(WEBP_USE_MIPS32)
WebPSamplers[MODE_RGB] = SampleRgbLinePairMIPS;
WebPSamplers[MODE_RGBA] = SampleRgbaLinePairMIPS;
WebPSamplers[MODE_BGR] = SampleBgrLinePairMIPS;
WebPSamplers[MODE_BGRA] = SampleBgraLinePairMIPS;
#endif // WEBP_USE_MIPS32
}