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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 
GetVersion(int32_t * major,int32_t * minor,int32_t * patch)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 
Init()46 void SkGraphics::Init() {
47     // SkGraphics::Init() must be thread-safe and idempotent.
48     SkCpu::CacheRuntimeFeatures();
49     SkOpts::Init();
50 }
51 
52 ///////////////////////////////////////////////////////////////////////////////
53 
DumpMemoryStatistics(SkTraceMemoryDump * dump)54 void SkGraphics::DumpMemoryStatistics(SkTraceMemoryDump* dump) {
55   SkResourceCache::DumpMemoryStatistics(dump);
56   SkGlyphCache::DumpMemoryStatistics(dump);
57 }
58 
PurgeAllCaches()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; */
SetFlags(const char * flags)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