1
2/*
3 * Copyright 2006 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
10#include "SkGraphics.h"
11
12#include "Sk64.h"
13#include "SkBlitter.h"
14#include "SkCanvas.h"
15#include "SkFloat.h"
16#include "SkGeometry.h"
17#include "SkMath.h"
18#include "SkMatrix.h"
19#include "SkPath.h"
20#include "SkPathEffect.h"
21#include "SkPixelRef.h"
22#include "SkRefCnt.h"
23#include "SkRTConf.h"
24#include "SkScalerContext.h"
25#include "SkShader.h"
26#include "SkStream.h"
27#include "SkTSearch.h"
28#include "SkTime.h"
29#include "SkUtils.h"
30#include "SkXfermode.h"
31
32void SkGraphics::GetVersion(int32_t* major, int32_t* minor, int32_t* patch) {
33    if (major) {
34        *major = SKIA_VERSION_MAJOR;
35    }
36    if (minor) {
37        *minor = SKIA_VERSION_MINOR;
38    }
39    if (patch) {
40        *patch = SKIA_VERSION_PATCH;
41    }
42}
43
44#define typesizeline(type)  { #type , sizeof(type) }
45
46#ifdef BUILD_EMBOSS_TABLE
47    extern void SkEmbossMask_BuildTable();
48#endif
49
50#ifdef BUILD_RADIALGRADIENT_TABLE
51    extern void SkRadialGradient_BuildTable();
52#endif
53
54void SkGraphics::Init() {
55#ifdef SK_DEVELOPER
56    skRTConfRegistry().possiblyDumpFile();
57    skRTConfRegistry().validate();
58    SkDebugf("Non-default runtime configuration options:\n");
59    skRTConfRegistry().printNonDefault( );
60#endif
61
62    SkFlattenable::InitializeFlattenables();
63#ifdef BUILD_EMBOSS_TABLE
64    SkEmbossMask_BuildTable();
65#endif
66#ifdef BUILD_RADIALGRADIENT_TABLE
67    SkRadialGradient_BuildTable();
68#endif
69
70#ifdef SK_DEBUGx
71    int i;
72
73    static const struct {
74        const char* fTypeName;
75        size_t      fSizeOf;
76    } gTypeSize[] = {
77        typesizeline(char),
78        typesizeline(short),
79        typesizeline(int),
80        typesizeline(long),
81        typesizeline(size_t),
82        typesizeline(void*),
83
84        typesizeline(S8CPU),
85        typesizeline(U8CPU),
86        typesizeline(S16CPU),
87        typesizeline(U16CPU),
88
89        typesizeline(SkPoint),
90        typesizeline(SkRect),
91        typesizeline(SkMatrix),
92        typesizeline(SkPath),
93        typesizeline(SkGlyph),
94        typesizeline(SkRefCnt),
95
96        typesizeline(SkPaint),
97        typesizeline(SkCanvas),
98        typesizeline(SkBlitter),
99        typesizeline(SkShader),
100        typesizeline(SkXfermode),
101        typesizeline(SkPathEffect)
102    };
103
104#ifdef SK_CPU_BENDIAN
105    SkDebugf("SkGraphics: big-endian\n");
106#else
107    SkDebugf("SkGraphics: little-endian\n");
108#endif
109
110    {
111        char    test = 0xFF;
112        int     itest = test;   // promote to int, see if it sign-extended
113        if (itest < 0)
114            SkDebugf("SkGraphics: char is signed\n");
115        else
116            SkDebugf("SkGraphics: char is unsigned\n");
117    }
118    for (i = 0; i < (int)SK_ARRAY_COUNT(gTypeSize); i++) {
119        SkDebugf("SkGraphics: sizeof(%s) = %d\n",
120                 gTypeSize[i].fTypeName, gTypeSize[i].fSizeOf);
121    }
122    SkDebugf("SkGraphics: font cache limit %dK\n",
123             GetFontCacheLimit() >> 10);
124
125#endif
126
127}
128
129void SkGraphics::Term() {
130    PurgeFontCache();
131    SkPaint::Term();
132}
133
134///////////////////////////////////////////////////////////////////////////////
135
136static const char kFontCacheLimitStr[] = "font-cache-limit";
137static const size_t kFontCacheLimitLen = sizeof(kFontCacheLimitStr) - 1;
138
139static const struct {
140    const char* fStr;
141    size_t fLen;
142    size_t (*fFunc)(size_t);
143} gFlags[] = {
144    { kFontCacheLimitStr, kFontCacheLimitLen, SkGraphics::SetFontCacheLimit }
145};
146
147/* flags are of the form param; or param=value; */
148void SkGraphics::SetFlags(const char* flags) {
149    if (!flags) {
150        return;
151    }
152    const char* nextSemi;
153    do {
154        size_t len = strlen(flags);
155        const char* paramEnd = flags + len;
156        const char* nextEqual = strchr(flags, '=');
157        if (nextEqual && paramEnd > nextEqual) {
158            paramEnd = nextEqual;
159        }
160        nextSemi = strchr(flags, ';');
161        if (nextSemi && paramEnd > nextSemi) {
162            paramEnd = nextSemi;
163        }
164        size_t paramLen = paramEnd - flags;
165        for (int i = 0; i < (int)SK_ARRAY_COUNT(gFlags); ++i) {
166            if (paramLen != gFlags[i].fLen) {
167                continue;
168            }
169            if (strncmp(flags, gFlags[i].fStr, paramLen) == 0) {
170                size_t val = 0;
171                if (nextEqual) {
172                    val = (size_t) atoi(nextEqual + 1);
173                }
174                (gFlags[i].fFunc)(val);
175                break;
176            }
177        }
178        flags = nextSemi + 1;
179    } while (nextSemi);
180}
181