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      1 /*
      2  * Copyright 2006 The Android Open Source Project
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 
      9 #include "SkGraphics.h"
     10 
     11 #include "SkBlitter.h"
     12 #include "SkCanvas.h"
     13 #include "SkCpu.h"
     14 #include "SkGeometry.h"
     15 #include "SkGlyphCache.h"
     16 #include "SkImageFilter.h"
     17 #include "SkMath.h"
     18 #include "SkMatrix.h"
     19 #include "SkOpts.h"
     20 #include "SkPath.h"
     21 #include "SkPathEffect.h"
     22 #include "SkPixelRef.h"
     23 #include "SkRefCnt.h"
     24 #include "SkResourceCache.h"
     25 #include "SkScalerContext.h"
     26 #include "SkShader.h"
     27 #include "SkStream.h"
     28 #include "SkTSearch.h"
     29 #include "SkTime.h"
     30 #include "SkUtils.h"
     31 
     32 #include <stdlib.h>
     33 
     34 void SkGraphics::GetVersion(int32_t* major, int32_t* minor, int32_t* patch) {
     35     if (major) {
     36         *major = SKIA_VERSION_MAJOR;
     37     }
     38     if (minor) {
     39         *minor = SKIA_VERSION_MINOR;
     40     }
     41     if (patch) {
     42         *patch = SKIA_VERSION_PATCH;
     43     }
     44 }
     45 
     46 void SkGraphics::Init() {
     47     // SkGraphics::Init() must be thread-safe and idempotent.
     48     SkCpu::CacheRuntimeFeatures();
     49     SkOpts::Init();
     50 }
     51 
     52 ///////////////////////////////////////////////////////////////////////////////
     53 
     54 void SkGraphics::DumpMemoryStatistics(SkTraceMemoryDump* dump) {
     55   SkResourceCache::DumpMemoryStatistics(dump);
     56   SkGlyphCache::DumpMemoryStatistics(dump);
     57 }
     58 
     59 void SkGraphics::PurgeAllCaches() {
     60     SkGraphics::PurgeFontCache();
     61     SkGraphics::PurgeResourceCache();
     62     SkImageFilter::PurgeCache();
     63 }
     64 
     65 ///////////////////////////////////////////////////////////////////////////////
     66 
     67 static const char kFontCacheLimitStr[] = "font-cache-limit";
     68 static const size_t kFontCacheLimitLen = sizeof(kFontCacheLimitStr) - 1;
     69 
     70 static const struct {
     71     const char* fStr;
     72     size_t fLen;
     73     size_t (*fFunc)(size_t);
     74 } gFlags[] = {
     75     { kFontCacheLimitStr, kFontCacheLimitLen, SkGraphics::SetFontCacheLimit }
     76 };
     77 
     78 /* flags are of the form param; or param=value; */
     79 void SkGraphics::SetFlags(const char* flags) {
     80     if (!flags) {
     81         return;
     82     }
     83     const char* nextSemi;
     84     do {
     85         size_t len = strlen(flags);
     86         const char* paramEnd = flags + len;
     87         const char* nextEqual = strchr(flags, '=');
     88         if (nextEqual && paramEnd > nextEqual) {
     89             paramEnd = nextEqual;
     90         }
     91         nextSemi = strchr(flags, ';');
     92         if (nextSemi && paramEnd > nextSemi) {
     93             paramEnd = nextSemi;
     94         }
     95         size_t paramLen = paramEnd - flags;
     96         for (int i = 0; i < (int)SK_ARRAY_COUNT(gFlags); ++i) {
     97             if (paramLen != gFlags[i].fLen) {
     98                 continue;
     99             }
    100             if (strncmp(flags, gFlags[i].fStr, paramLen) == 0) {
    101                 size_t val = 0;
    102                 if (nextEqual) {
    103                     val = (size_t) atoi(nextEqual + 1);
    104                 }
    105                 (gFlags[i].fFunc)(val);
    106                 break;
    107             }
    108         }
    109         flags = nextSemi + 1;
    110     } while (nextSemi);
    111 }
    112