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MIPS: dspr2: added optimization for ColorIndexInverseTransforms

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Change-Id: I5b6094ce489d4f896bc4b8f575142eb3c5054beb
This commit is contained in:
Djordje Pesut
2014-09-02 16:34:52 +02:00
parent d3242aee16
commit f0103595dd
7 changed files with 173 additions and 29 deletions
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106
src/dsp/lossless_mips_dsp_r2.c Normal file
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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"
#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
#endif // WEBP_USE_MIPS_DSP_R2
//------------------------------------------------------------------------------
extern void VP8LDspInitMIPSdspR2(void);
void VP8LDspInitMIPSdspR2(void) {
#if defined(WEBP_USE_MIPS_DSP_R2)
VP8LMapColor32b = MapARGB;
VP8LMapColor8b = MapAlpha;
#endif // WEBP_USE_MIPS_DSP_R2
}
//------------------------------------------------------------------------------