SkGraphics.cpp revision 2d1adf2322b026ec746dbdd931ca6aac7bb5d4cb 
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    if (skRTConfRegistry().hasNonDefault()) {
59        SkDebugf("Non-default runtime configuration options:\n");
60        skRTConfRegistry().printNonDefault();
61    }
62#endif
63
64#ifdef BUILD_EMBOSS_TABLE
65    SkEmbossMask_BuildTable();
66#endif
67#ifdef BUILD_RADIALGRADIENT_TABLE
68    SkRadialGradient_BuildTable();
69#endif
70
71#ifdef SK_DEBUGx
72    int i;
73
74    static const struct {
75        const char* fTypeName;
76        size_t      fSizeOf;
77    } gTypeSize[] = {
78        typesizeline(char),
79        typesizeline(short),
80        typesizeline(int),
81        typesizeline(long),
82        typesizeline(size_t),
83        typesizeline(void*),
84
85        typesizeline(S8CPU),
86        typesizeline(U8CPU),
87        typesizeline(S16CPU),
88        typesizeline(U16CPU),
89
90        typesizeline(SkPoint),
91        typesizeline(SkRect),
92        typesizeline(SkMatrix),
93        typesizeline(SkPath),
94        typesizeline(SkGlyph),
95        typesizeline(SkRefCnt),
96
97        typesizeline(SkPaint),
98        typesizeline(SkCanvas),
99        typesizeline(SkBlitter),
100        typesizeline(SkShader),
101        typesizeline(SkXfermode),
102        typesizeline(SkPathEffect)
103    };
104
105#ifdef SK_CPU_BENDIAN
106    SkDebugf("SkGraphics: big-endian\n");
107#else
108    SkDebugf("SkGraphics: little-endian\n");
109#endif
110
111    {
112        char    test = 0xFF;
113        int     itest = test;   // promote to int, see if it sign-extended
114        if (itest < 0)
115            SkDebugf("SkGraphics: char is signed\n");
116        else
117            SkDebugf("SkGraphics: char is unsigned\n");
118    }
119    for (i = 0; i < (int)SK_ARRAY_COUNT(gTypeSize); i++) {
120        SkDebugf("SkGraphics: sizeof(%s) = %d\n",
121                 gTypeSize[i].fTypeName, gTypeSize[i].fSizeOf);
122    }
123    SkDebugf("SkGraphics: font cache limit %dK\n",
124             GetFontCacheLimit() >> 10);
125
126#endif
127
128}
129
130void SkGraphics::Term() {
131    PurgeFontCache();
132    SkPaint::Term();
133    SkXfermode::Term();
134}
135
136///////////////////////////////////////////////////////////////////////////////
137
138static const char kFontCacheLimitStr[] = "font-cache-limit";
139static const size_t kFontCacheLimitLen = sizeof(kFontCacheLimitStr) - 1;
140
141static const struct {
142    const char* fStr;
143    size_t fLen;
144    size_t (*fFunc)(size_t);
145} gFlags[] = {
146    { kFontCacheLimitStr, kFontCacheLimitLen, SkGraphics::SetFontCacheLimit }
147};
148
149/* flags are of the form param; or param=value; */
150void SkGraphics::SetFlags(const char* flags) {
151    if (!flags) {
152        return;
153    }
154    const char* nextSemi;
155    do {
156        size_t len = strlen(flags);
157        const char* paramEnd = flags + len;
158        const char* nextEqual = strchr(flags, '=');
159        if (nextEqual && paramEnd > nextEqual) {
160            paramEnd = nextEqual;
161        }
162        nextSemi = strchr(flags, ';');
163        if (nextSemi && paramEnd > nextSemi) {
164            paramEnd = nextSemi;
165        }
166        size_t paramLen = paramEnd - flags;
167        for (int i = 0; i < (int)SK_ARRAY_COUNT(gFlags); ++i) {
168            if (paramLen != gFlags[i].fLen) {
169                continue;
170            }
171            if (strncmp(flags, gFlags[i].fStr, paramLen) == 0) {
172                size_t val = 0;
173                if (nextEqual) {
174                    val = (size_t) atoi(nextEqual + 1);
175                }
176                (gFlags[i].fFunc)(val);
177                break;
178            }
179        }
180        flags = nextSemi + 1;
181    } while (nextSemi);
182}
183