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      1 /***************************************************************************
      2  * Copyright (c) 2010, Code Aurora Forum. All rights reserved.
      3  * Copyright 2006-2010, The Android Open Source Project
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  ***************************************************************************/
      8 
      9 /* Changes:
     10  * 2011-04-01 ARM
     11  *    Merged the functions from src/opts/opts_check_arm_neon.cpp
     12  *    Modified to return ARM version of memset16 and memset32 if no neon
     13  *    available in the core
     14  */
     15 
     16 #include "SkBlitRow.h"
     17 #include "SkUtils.h"
     18 
     19 #include "SkUtilsArm.h"
     20 #include "SkMorphology_opts.h"
     21 #include "SkMorphology_opts_neon.h"
     22 #include "SkBlurImage_opts_neon.h"
     23 
     24 #if defined(SK_CPU_LENDIAN) && !SK_ARM_NEON_IS_NONE
     25 extern "C" void memset16_neon(uint16_t dst[], uint16_t value, int count);
     26 extern "C" void memset32_neon(uint32_t dst[], uint32_t value, int count);
     27 #endif
     28 
     29 #if defined(SK_CPU_LENDIAN)
     30 extern "C" void arm_memset16(uint16_t* dst, uint16_t value, int count);
     31 extern "C" void arm_memset32(uint32_t* dst, uint32_t value, int count);
     32 #endif
     33 
     34 SkMemset16Proc SkMemset16GetPlatformProc() {
     35     // FIXME: memset.arm.S is using syntax incompatible with XCode
     36 #if !defined(SK_CPU_LENDIAN) || defined(SK_BUILD_FOR_IOS)
     37     return NULL;
     38 #elif SK_ARM_NEON_IS_DYNAMIC
     39     if (sk_cpu_arm_has_neon()) {
     40         return memset16_neon;
     41     } else {
     42         return arm_memset16;
     43     }
     44 #elif SK_ARM_NEON_IS_ALWAYS
     45     return memset16_neon;
     46 #else
     47     return arm_memset16;
     48 #endif
     49 }
     50 
     51 SkMemset32Proc SkMemset32GetPlatformProc() {
     52     // FIXME: memset.arm.S is using syntax incompatible with XCode
     53 #if !defined(SK_CPU_LENDIAN) || defined(SK_BUILD_FOR_IOS)
     54     return NULL;
     55 #elif SK_ARM_NEON_IS_DYNAMIC
     56     if (sk_cpu_arm_has_neon()) {
     57         return memset32_neon;
     58     } else {
     59         return arm_memset32;
     60     }
     61 #elif SK_ARM_NEON_IS_ALWAYS
     62     return memset32_neon;
     63 #else
     64     return arm_memset32;
     65 #endif
     66 }
     67 
     68 SkBlitRow::ColorRectProc PlatformColorRectProcFactory() {
     69     return NULL;
     70 }
     71 
     72 SkMorphologyProc SkMorphologyGetPlatformProc(SkMorphologyProcType type) {
     73 #if SK_ARM_NEON_IS_NONE
     74     return NULL;
     75 #else
     76 #if SK_ARM_NEON_IS_DYNAMIC
     77     if (!sk_cpu_arm_has_neon()) {
     78         return NULL;
     79     }
     80 #endif
     81     switch (type) {
     82         case kDilateX_SkMorphologyProcType:
     83             return SkDilateX_neon;
     84         case kDilateY_SkMorphologyProcType:
     85             return SkDilateY_neon;
     86         case kErodeX_SkMorphologyProcType:
     87             return SkErodeX_neon;
     88         case kErodeY_SkMorphologyProcType:
     89             return SkErodeY_neon;
     90         default:
     91             return NULL;
     92     }
     93 #endif
     94 }
     95 
     96 bool SkBoxBlurGetPlatformProcs(SkBoxBlurProc* boxBlurX,
     97                                SkBoxBlurProc* boxBlurY,
     98                                SkBoxBlurProc* boxBlurXY,
     99                                SkBoxBlurProc* boxBlurYX) {
    100 #if SK_ARM_NEON_IS_NONE
    101     return false;
    102 #else
    103 #if SK_ARM_NEON_IS_DYNAMIC
    104     if (!sk_cpu_arm_has_neon()) {
    105         return false;
    106     }
    107 #endif
    108     return SkBoxBlurGetPlatformProcs_NEON(boxBlurX, boxBlurY, boxBlurXY, boxBlurYX);
    109 #endif
    110 }
    111