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Side by Side Diff: third_party/libwebp/dsp/rescaler.c

Issue 2651883004: libwebp-0.6.0-rc1 (Closed)
Patch Set: Created 3 years, 11 months ago
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1 // Copyright 2014 Google Inc. All Rights Reserved. 1 // Copyright 2014 Google Inc. All Rights Reserved.
2 // 2 //
3 // Use of this source code is governed by a BSD-style license 3 // Use of this source code is governed by a BSD-style license
4 // that can be found in the COPYING file in the root of the source 4 // that can be found in the COPYING file in the root of the source
5 // tree. An additional intellectual property rights grant can be found 5 // tree. An additional intellectual property rights grant can be found
6 // in the file PATENTS. All contributing project authors may 6 // in the file PATENTS. All contributing project authors may
7 // be found in the AUTHORS file in the root of the source tree. 7 // be found in the AUTHORS file in the root of the source tree.
8 // ----------------------------------------------------------------------------- 8 // -----------------------------------------------------------------------------
9 // 9 //
10 // Rescaling functions 10 // Rescaling functions
11 // 11 //
12 // Author: Skal (pascal.massimino@gmail.com) 12 // Author: Skal (pascal.massimino@gmail.com)
13 13
14 #include <assert.h> 14 #include <assert.h>
15 15
16 #include "./dsp.h" 16 #include "./dsp.h"
17 #include "../utils/rescaler.h" 17 #include "../utils/rescaler_utils.h"
18 18
19 //------------------------------------------------------------------------------ 19 //------------------------------------------------------------------------------
20 // Implementations of critical functions ImportRow / ExportRow 20 // Implementations of critical functions ImportRow / ExportRow
21 21
22 #define ROUNDER (WEBP_RESCALER_ONE >> 1) 22 #define ROUNDER (WEBP_RESCALER_ONE >> 1)
23 #define MULT_FIX(x, y) (((uint64_t)(x) * (y) + ROUNDER) >> WEBP_RESCALER_RFIX) 23 #define MULT_FIX(x, y) (((uint64_t)(x) * (y) + ROUNDER) >> WEBP_RESCALER_RFIX)
24 24
25 //------------------------------------------------------------------------------ 25 //------------------------------------------------------------------------------
26 // Row import 26 // Row import
27 27
(...skipping 164 matching lines...) Expand 10 before | Expand all | Expand 10 after
192 192
193 WebPRescalerImportRowFunc WebPRescalerImportRowExpand; 193 WebPRescalerImportRowFunc WebPRescalerImportRowExpand;
194 WebPRescalerImportRowFunc WebPRescalerImportRowShrink; 194 WebPRescalerImportRowFunc WebPRescalerImportRowShrink;
195 195
196 WebPRescalerExportRowFunc WebPRescalerExportRowExpand; 196 WebPRescalerExportRowFunc WebPRescalerExportRowExpand;
197 WebPRescalerExportRowFunc WebPRescalerExportRowShrink; 197 WebPRescalerExportRowFunc WebPRescalerExportRowShrink;
198 198
199 extern void WebPRescalerDspInitSSE2(void); 199 extern void WebPRescalerDspInitSSE2(void);
200 extern void WebPRescalerDspInitMIPS32(void); 200 extern void WebPRescalerDspInitMIPS32(void);
201 extern void WebPRescalerDspInitMIPSdspR2(void); 201 extern void WebPRescalerDspInitMIPSdspR2(void);
202 extern void WebPRescalerDspInitMSA(void);
202 extern void WebPRescalerDspInitNEON(void); 203 extern void WebPRescalerDspInitNEON(void);
203 204
204 static volatile VP8CPUInfo rescaler_last_cpuinfo_used = 205 static volatile VP8CPUInfo rescaler_last_cpuinfo_used =
205 (VP8CPUInfo)&rescaler_last_cpuinfo_used; 206 (VP8CPUInfo)&rescaler_last_cpuinfo_used;
206 207
207 WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInit(void) { 208 WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInit(void) {
208 if (rescaler_last_cpuinfo_used == VP8GetCPUInfo) return; 209 if (rescaler_last_cpuinfo_used == VP8GetCPUInfo) return;
209 210
210 WebPRescalerImportRowExpand = WebPRescalerImportRowExpandC; 211 WebPRescalerImportRowExpand = WebPRescalerImportRowExpandC;
211 WebPRescalerImportRowShrink = WebPRescalerImportRowShrinkC; 212 WebPRescalerImportRowShrink = WebPRescalerImportRowShrinkC;
(...skipping 14 matching lines...) Expand all
226 #if defined(WEBP_USE_MIPS32) 227 #if defined(WEBP_USE_MIPS32)
227 if (VP8GetCPUInfo(kMIPS32)) { 228 if (VP8GetCPUInfo(kMIPS32)) {
228 WebPRescalerDspInitMIPS32(); 229 WebPRescalerDspInitMIPS32();
229 } 230 }
230 #endif 231 #endif
231 #if defined(WEBP_USE_MIPS_DSP_R2) 232 #if defined(WEBP_USE_MIPS_DSP_R2)
232 if (VP8GetCPUInfo(kMIPSdspR2)) { 233 if (VP8GetCPUInfo(kMIPSdspR2)) {
233 WebPRescalerDspInitMIPSdspR2(); 234 WebPRescalerDspInitMIPSdspR2();
234 } 235 }
235 #endif 236 #endif
237 #if defined(WEBP_USE_MSA)
238 if (VP8GetCPUInfo(kMSA)) {
239 WebPRescalerDspInitMSA();
240 }
241 #endif
236 } 242 }
237 rescaler_last_cpuinfo_used = VP8GetCPUInfo; 243 rescaler_last_cpuinfo_used = VP8GetCPUInfo;
238 } 244 }
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