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Diffstat (limited to 'drivers/webp/dsp/rescaler_mips32.c')
-rw-r--r--drivers/webp/dsp/rescaler_mips32.c291
1 files changed, 0 insertions, 291 deletions
diff --git a/drivers/webp/dsp/rescaler_mips32.c b/drivers/webp/dsp/rescaler_mips32.c
deleted file mode 100644
index ddaa391336..0000000000
--- a/drivers/webp/dsp/rescaler_mips32.c
+++ /dev/null
@@ -1,291 +0,0 @@
-// 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 rescaling functions
-//
-// Author(s): Djordje Pesut (djordje.pesut@imgtec.com)
-
-#include "./dsp.h"
-
-#if defined(WEBP_USE_MIPS32)
-
-#include <assert.h>
-#include "../utils/rescaler.h"
-
-//------------------------------------------------------------------------------
-// Row import
-
-static void ImportRowShrink(WebPRescaler* const wrk, const uint8_t* src) {
- const int x_stride = wrk->num_channels;
- const int x_out_max = wrk->dst_width * wrk->num_channels;
- const int fx_scale = wrk->fx_scale;
- const int x_add = wrk->x_add;
- const int x_sub = wrk->x_sub;
- const int x_stride1 = x_stride << 2;
- int channel;
- assert(!wrk->x_expand);
- assert(!WebPRescalerInputDone(wrk));
-
- for (channel = 0; channel < x_stride; ++channel) {
- const uint8_t* src1 = src + channel;
- rescaler_t* frow = wrk->frow + channel;
- int temp1, temp2, temp3;
- int base, frac, sum;
- int accum, accum1;
- int loop_c = x_out_max - channel;
-
- __asm__ volatile (
- "li %[temp1], 0x8000 \n\t"
- "li %[temp2], 0x10000 \n\t"
- "li %[sum], 0 \n\t"
- "li %[accum], 0 \n\t"
- "1: \n\t"
- "addu %[accum], %[accum], %[x_add] \n\t"
- "li %[base], 0 \n\t"
- "blez %[accum], 3f \n\t"
- "2: \n\t"
- "lbu %[base], 0(%[src1]) \n\t"
- "subu %[accum], %[accum], %[x_sub] \n\t"
- "addu %[src1], %[src1], %[x_stride] \n\t"
- "addu %[sum], %[sum], %[base] \n\t"
- "bgtz %[accum], 2b \n\t"
- "3: \n\t"
- "negu %[accum1], %[accum] \n\t"
- "mul %[frac], %[base], %[accum1] \n\t"
- "mul %[temp3], %[sum], %[x_sub] \n\t"
- "subu %[loop_c], %[loop_c], %[x_stride] \n\t"
- "mult %[temp1], %[temp2] \n\t"
- "maddu %[frac], %[fx_scale] \n\t"
- "mfhi %[sum] \n\t"
- "subu %[temp3], %[temp3], %[frac] \n\t"
- "sw %[temp3], 0(%[frow]) \n\t"
- "addu %[frow], %[frow], %[x_stride1] \n\t"
- "bgtz %[loop_c], 1b \n\t"
- : [accum]"=&r"(accum), [src1]"+r"(src1), [temp3]"=&r"(temp3),
- [sum]"=&r"(sum), [base]"=&r"(base), [frac]"=&r"(frac),
- [frow]"+r"(frow), [accum1]"=&r"(accum1),
- [temp2]"=&r"(temp2), [temp1]"=&r"(temp1)
- : [x_stride]"r"(x_stride), [fx_scale]"r"(fx_scale),
- [x_sub]"r"(x_sub), [x_add]"r"(x_add),
- [loop_c]"r"(loop_c), [x_stride1]"r"(x_stride1)
- : "memory", "hi", "lo"
- );
- assert(accum == 0);
- }
-}
-
-static void ImportRowExpand(WebPRescaler* const wrk, const uint8_t* src) {
- const int x_stride = wrk->num_channels;
- const int x_out_max = wrk->dst_width * wrk->num_channels;
- const int x_add = wrk->x_add;
- const int x_sub = wrk->x_sub;
- const int src_width = wrk->src_width;
- const int x_stride1 = x_stride << 2;
- int channel;
- assert(wrk->x_expand);
- assert(!WebPRescalerInputDone(wrk));
-
- for (channel = 0; channel < x_stride; ++channel) {
- const uint8_t* src1 = src + channel;
- rescaler_t* frow = wrk->frow + channel;
- int temp1, temp2, temp3, temp4;
- int frac;
- int accum;
- int x_out = channel;
-
- __asm__ volatile (
- "addiu %[temp3], %[src_width], -1 \n\t"
- "lbu %[temp2], 0(%[src1]) \n\t"
- "addu %[src1], %[src1], %[x_stride] \n\t"
- "bgtz %[temp3], 0f \n\t"
- "addiu %[temp1], %[temp2], 0 \n\t"
- "b 3f \n\t"
- "0: \n\t"
- "lbu %[temp1], 0(%[src1]) \n\t"
- "3: \n\t"
- "addiu %[accum], %[x_add], 0 \n\t"
- "1: \n\t"
- "subu %[temp3], %[temp2], %[temp1] \n\t"
- "mul %[temp3], %[temp3], %[accum] \n\t"
- "mul %[temp4], %[temp1], %[x_add] \n\t"
- "addu %[temp3], %[temp4], %[temp3] \n\t"
- "sw %[temp3], 0(%[frow]) \n\t"
- "addu %[frow], %[frow], %[x_stride1] \n\t"
- "addu %[x_out], %[x_out], %[x_stride] \n\t"
- "subu %[temp3], %[x_out], %[x_out_max] \n\t"
- "bgez %[temp3], 2f \n\t"
- "subu %[accum], %[accum], %[x_sub] \n\t"
- "bgez %[accum], 4f \n\t"
- "addiu %[temp2], %[temp1], 0 \n\t"
- "addu %[src1], %[src1], %[x_stride] \n\t"
- "lbu %[temp1], 0(%[src1]) \n\t"
- "addu %[accum], %[accum], %[x_add] \n\t"
- "4: \n\t"
- "b 1b \n\t"
- "2: \n\t"
- : [src1]"+r"(src1), [accum]"=&r"(accum), [temp1]"=&r"(temp1),
- [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [temp4]"=&r"(temp4),
- [x_out]"+r"(x_out), [frac]"=&r"(frac), [frow]"+r"(frow)
- : [x_stride]"r"(x_stride), [x_add]"r"(x_add), [x_sub]"r"(x_sub),
- [x_stride1]"r"(x_stride1), [src_width]"r"(src_width),
- [x_out_max]"r"(x_out_max)
- : "memory", "hi", "lo"
- );
- assert(wrk->x_sub == 0 /* <- special case for src_width=1 */ || accum == 0);
- }
-}
-
-//------------------------------------------------------------------------------
-// Row export
-
-static void ExportRowExpand(WebPRescaler* const wrk) {
- uint8_t* dst = wrk->dst;
- rescaler_t* irow = wrk->irow;
- const int x_out_max = wrk->dst_width * wrk->num_channels;
- const rescaler_t* frow = wrk->frow;
- int temp0, temp1, temp3, temp4, temp5, loop_end;
- const int temp2 = (int)wrk->fy_scale;
- const int temp6 = x_out_max << 2;
- assert(!WebPRescalerOutputDone(wrk));
- assert(wrk->y_accum <= 0);
- assert(wrk->y_expand);
- assert(wrk->y_sub != 0);
- if (wrk->y_accum == 0) {
- __asm__ volatile (
- "li %[temp3], 0x10000 \n\t"
- "li %[temp4], 0x8000 \n\t"
- "addu %[loop_end], %[frow], %[temp6] \n\t"
- "1: \n\t"
- "lw %[temp0], 0(%[frow]) \n\t"
- "addiu %[dst], %[dst], 1 \n\t"
- "addiu %[frow], %[frow], 4 \n\t"
- "mult %[temp3], %[temp4] \n\t"
- "maddu %[temp0], %[temp2] \n\t"
- "mfhi %[temp5] \n\t"
- "sb %[temp5], -1(%[dst]) \n\t"
- "bne %[frow], %[loop_end], 1b \n\t"
- : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3),
- [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow),
- [dst]"+r"(dst), [loop_end]"=&r"(loop_end)
- : [temp2]"r"(temp2), [temp6]"r"(temp6)
- : "memory", "hi", "lo"
- );
- } else {
- const uint32_t B = WEBP_RESCALER_FRAC(-wrk->y_accum, wrk->y_sub);
- const uint32_t A = (uint32_t)(WEBP_RESCALER_ONE - B);
- __asm__ volatile (
- "li %[temp3], 0x10000 \n\t"
- "li %[temp4], 0x8000 \n\t"
- "addu %[loop_end], %[frow], %[temp6] \n\t"
- "1: \n\t"
- "lw %[temp0], 0(%[frow]) \n\t"
- "lw %[temp1], 0(%[irow]) \n\t"
- "addiu %[dst], %[dst], 1 \n\t"
- "mult %[temp3], %[temp4] \n\t"
- "maddu %[A], %[temp0] \n\t"
- "maddu %[B], %[temp1] \n\t"
- "addiu %[frow], %[frow], 4 \n\t"
- "addiu %[irow], %[irow], 4 \n\t"
- "mfhi %[temp5] \n\t"
- "mult %[temp3], %[temp4] \n\t"
- "maddu %[temp5], %[temp2] \n\t"
- "mfhi %[temp5] \n\t"
- "sb %[temp5], -1(%[dst]) \n\t"
- "bne %[frow], %[loop_end], 1b \n\t"
- : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3),
- [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow),
- [irow]"+r"(irow), [dst]"+r"(dst), [loop_end]"=&r"(loop_end)
- : [temp2]"r"(temp2), [temp6]"r"(temp6), [A]"r"(A), [B]"r"(B)
- : "memory", "hi", "lo"
- );
- }
-}
-
-static void ExportRowShrink(WebPRescaler* const wrk) {
- const int x_out_max = wrk->dst_width * wrk->num_channels;
- uint8_t* dst = wrk->dst;
- rescaler_t* irow = wrk->irow;
- const rescaler_t* frow = wrk->frow;
- const int yscale = wrk->fy_scale * (-wrk->y_accum);
- int temp0, temp1, temp3, temp4, temp5, loop_end;
- const int temp2 = (int)wrk->fxy_scale;
- const int temp6 = x_out_max << 2;
-
- assert(!WebPRescalerOutputDone(wrk));
- assert(wrk->y_accum <= 0);
- assert(!wrk->y_expand);
- assert(wrk->fxy_scale != 0);
- if (yscale) {
- __asm__ volatile (
- "li %[temp3], 0x10000 \n\t"
- "li %[temp4], 0x8000 \n\t"
- "addu %[loop_end], %[frow], %[temp6] \n\t"
- "1: \n\t"
- "lw %[temp0], 0(%[frow]) \n\t"
- "mult %[temp3], %[temp4] \n\t"
- "addiu %[frow], %[frow], 4 \n\t"
- "maddu %[temp0], %[yscale] \n\t"
- "mfhi %[temp1] \n\t"
- "lw %[temp0], 0(%[irow]) \n\t"
- "addiu %[dst], %[dst], 1 \n\t"
- "addiu %[irow], %[irow], 4 \n\t"
- "subu %[temp0], %[temp0], %[temp1] \n\t"
- "mult %[temp3], %[temp4] \n\t"
- "maddu %[temp0], %[temp2] \n\t"
- "mfhi %[temp5] \n\t"
- "sw %[temp1], -4(%[irow]) \n\t"
- "sb %[temp5], -1(%[dst]) \n\t"
- "bne %[frow], %[loop_end], 1b \n\t"
- : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3),
- [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [frow]"+r"(frow),
- [irow]"+r"(irow), [dst]"+r"(dst), [loop_end]"=&r"(loop_end)
- : [temp2]"r"(temp2), [yscale]"r"(yscale), [temp6]"r"(temp6)
- : "memory", "hi", "lo"
- );
- } else {
- __asm__ volatile (
- "li %[temp3], 0x10000 \n\t"
- "li %[temp4], 0x8000 \n\t"
- "addu %[loop_end], %[irow], %[temp6] \n\t"
- "1: \n\t"
- "lw %[temp0], 0(%[irow]) \n\t"
- "addiu %[dst], %[dst], 1 \n\t"
- "addiu %[irow], %[irow], 4 \n\t"
- "mult %[temp3], %[temp4] \n\t"
- "maddu %[temp0], %[temp2] \n\t"
- "mfhi %[temp5] \n\t"
- "sw $zero, -4(%[irow]) \n\t"
- "sb %[temp5], -1(%[dst]) \n\t"
- "bne %[irow], %[loop_end], 1b \n\t"
- : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp3]"=&r"(temp3),
- [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [irow]"+r"(irow),
- [dst]"+r"(dst), [loop_end]"=&r"(loop_end)
- : [temp2]"r"(temp2), [temp6]"r"(temp6)
- : "memory", "hi", "lo"
- );
- }
-}
-
-//------------------------------------------------------------------------------
-// Entry point
-
-extern void WebPRescalerDspInitMIPS32(void);
-
-WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInitMIPS32(void) {
- WebPRescalerImportRowExpand = ImportRowExpand;
- WebPRescalerImportRowShrink = ImportRowShrink;
- WebPRescalerExportRowExpand = ExportRowExpand;
- WebPRescalerExportRowShrink = ExportRowShrink;
-}
-
-#else // !WEBP_USE_MIPS32
-
-WEBP_DSP_INIT_STUB(WebPRescalerDspInitMIPS32)
-
-#endif // WEBP_USE_MIPS32
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