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      1 /*
      2  * Copyright 2012 Google Inc.
      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 #include "path_utils.h"
      9 #include "SkPath.h"
     10 #include "SkStream.h"
     11 
     12 namespace sk_tools {
     13     static int gCurPathID = 0;
     14 
     15     void dump_path_prefix(SkFILEWStream* pathStream) {
     16         if (NULL == pathStream) {
     17             return;
     18         }
     19 
     20         pathStream->writeText("#include \"SkScalar.h\"\n");
     21         pathStream->writeText("#include \"SkPoint.h\"\n");
     22         pathStream->writeText("#include \"SkBitmap.h\"\n");
     23         pathStream->writeText("#include \"SkDevice.h\"\n");
     24         pathStream->writeText("#include \"SkString.h\"\n");
     25         pathStream->writeText("#include \"SkImageEncoder.h\"\n");
     26     }
     27 
     28     void dump_path(SkFILEWStream* pathStream, const SkPath& path) {
     29         if (NULL == pathStream) {
     30             return;
     31         }
     32 
     33         static const int kMaxPts = 200;
     34         static const int kMaxVerbs = 200;
     35 
     36         int numPts = path.countPoints();
     37         int numVerbs = path.countVerbs();
     38 
     39         SkASSERT(numPts <= kMaxPts);
     40         SkASSERT(numVerbs <= kMaxVerbs);
     41 
     42         SkPoint pts[kMaxPts];
     43         uint8_t verbs[kMaxVerbs];
     44 
     45         path.getPoints(pts, kMaxPts);
     46         path.getVerbs(verbs, kMaxVerbs);
     47 
     48         const char* gStrs[] = {
     49             "kMove_Verb",
     50             "kLine_Verb",
     51             "kQuad_Verb",
     52             "kCubic_Verb",
     53             "kClose_Verb",
     54             "kDone_Verb"
     55         };
     56 
     57         pathStream->writeText("static const int numPts");
     58         pathStream->writeDecAsText(gCurPathID);
     59         pathStream->writeText(" = ");
     60         pathStream->writeDecAsText(numPts);
     61         pathStream->writeText(";\n");
     62 
     63         pathStream->writeText("SkPoint pts");
     64         pathStream->writeDecAsText(gCurPathID);
     65         pathStream->writeText("[] = {\n");
     66 
     67         for (int i = 0; i < numPts; ++i) {
     68             SkString temp;
     69 
     70             pathStream->writeText("      { ");
     71             temp.appendScalar(pts[i].fX);
     72             temp.append("f, ");
     73             temp.appendScalar(pts[i].fY);
     74             temp.append("f },\n");
     75             pathStream->writeText(temp.c_str());
     76         }
     77         pathStream->writeText("};\n");
     78 
     79         pathStream->writeText("static const int numVerbs");
     80         pathStream->writeDecAsText(gCurPathID);
     81         pathStream->writeText(" = ");
     82         pathStream->writeDecAsText(numVerbs);
     83         pathStream->writeText(";\n");
     84 
     85         pathStream->writeText("uint8_t verbs");
     86         pathStream->writeDecAsText(gCurPathID);
     87         pathStream->writeText("[] = {\n");
     88 
     89         for (int i = 0; i < numVerbs; ++i) {
     90             pathStream->writeText("\tSkPath::");
     91             pathStream->writeText(gStrs[verbs[i]]);
     92             pathStream->writeText(",\n");
     93         }
     94         pathStream->writeText("};\n");
     95 
     96         gCurPathID++;
     97     }
     98 
     99     void dump_path_suffix(SkFILEWStream* pathStream) {
    100         if (NULL == pathStream) {
    101             return;
    102         }
    103 
    104         pathStream->writeText("int numPaths = ");
    105         pathStream->writeDecAsText(gCurPathID);
    106         pathStream->writeText(";\n");
    107 
    108         pathStream->writeText("int sizes[] = {\n");
    109         for (int i = 0; i < gCurPathID; ++i) {
    110             pathStream->writeText("\t numPts");
    111             pathStream->writeDecAsText(i);
    112             pathStream->writeText(", numVerbs");
    113             pathStream->writeDecAsText(i);
    114             pathStream->writeText(",\n");
    115         }
    116         pathStream->writeText("};\n");
    117 
    118         pathStream->writeText("const SkPoint* points[] = {\n");
    119         for (int i = 0; i < gCurPathID; ++i) {
    120             pathStream->writeText("\tpts");
    121             pathStream->writeDecAsText(i);
    122             pathStream->writeText(",\n");
    123         }
    124         pathStream->writeText("};\n");
    125 
    126         pathStream->writeText("const uint8_t* verbs[] = {\n");
    127         for (int i = 0; i < gCurPathID; ++i) {
    128             pathStream->writeText("\t(const uint8_t*)verbs");
    129             pathStream->writeDecAsText(i);
    130             pathStream->writeText(",\n");
    131         }
    132         pathStream->writeText("};\n");
    133     }
    134 }
    135