1 /*
2 * Copyright 2019 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 "src/sksl/SkSLOutputStream.h"
9
10 #include <stdio.h>
11 #include <memory>
12
13 namespace SkSL {
14
writeString(const std::string & s)15 void OutputStream::writeString(const std::string& s) {
16 this->write(s.c_str(), s.size());
17 }
18
printf(const char format[],...)19 void OutputStream::printf(const char format[], ...) {
20 va_list args;
21 va_start(args, format);
22 this->appendVAList(format, args);
23 va_end(args);
24 }
25
appendVAList(const char format[],va_list args)26 void OutputStream::appendVAList(const char format[], va_list args) {
27 char buffer[kBufferSize];
28 va_list copy;
29 va_copy(copy, args);
30 int length = vsnprintf(buffer, kBufferSize, format, args);
31 if (length > (int) kBufferSize) {
32 std::unique_ptr<char[]> bigBuffer(new char[length + 1]);
33 vsnprintf(bigBuffer.get(), length + 1, format, copy);
34 this->write(bigBuffer.get(), length);
35 } else {
36 this->write(buffer, length);
37 }
38 va_end(copy);
39 }
40
41 } // namespace SkSL
42