1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <fstream>
#include "SkSLCompiler.h"
#include "SkSLFileOutputStream.h"
// Given the path to a file (e.g. src/gpu/effects/GrFooFragmentProcessor.fp) and the expected
// filename prefix and suffix (e.g. "Gr" and ".fp"), returns the "base name" of the
// file (in this case, 'FooFragmentProcessor'). If no match, returns the empty string.
static SkSL::String base_name(const char* fpPath, const char* prefix, const char* suffix) {
SkSL::String result;
const char* end = fpPath + strlen(fpPath);
const char* fileName = end;
// back up until we find a slash
while (fileName != fpPath && '/' != *(fileName - 1) && '\\' != *(fileName - 1)) {
--fileName;
}
if (!strncmp(fileName, prefix, strlen(prefix)) &&
!strncmp(end - strlen(suffix), suffix, strlen(suffix))) {
result.append(fileName + strlen(prefix), end - fileName - strlen(prefix) - strlen(suffix));
}
return result;
}
/**
* Very simple standalone executable to facilitate testing.
*/
int main(int argc, const char** argv) {
if (argc != 3) {
printf("usage: skslc <input> <output>\n");
exit(1);
}
SkSL::Program::Kind kind;
SkSL::String input(argv[1]);
if (input.endsWith(".vert")) {
kind = SkSL::Program::kVertex_Kind;
} else if (input.endsWith(".frag")) {
kind = SkSL::Program::kFragment_Kind;
} else if (input.endsWith(".geom")) {
kind = SkSL::Program::kGeometry_Kind;
} else if (input.endsWith(".fp")) {
kind = SkSL::Program::kFragmentProcessor_Kind;
} else if (input.endsWith(".stage")) {
kind = SkSL::Program::kPipelineStage_Kind;
} else {
printf("input filename must end in '.vert', '.frag', '.geom', '.fp', or '.stage'\n");
exit(1);
}
std::ifstream in(argv[1]);
std::string stdText((std::istreambuf_iterator<char>(in)),
std::istreambuf_iterator<char>());
SkSL::String text(stdText.c_str());
if (in.rdstate()) {
printf("error reading '%s'\n", argv[1]);
exit(2);
}
SkSL::Program::Settings settings;
settings.fArgs.insert(std::make_pair("gpImplementsDistanceVector", 1));
SkSL::String name(argv[2]);
if (name.endsWith(".spirv")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler;
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toSPIRV(*program, out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else if (name.endsWith(".glsl")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler;
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toGLSL(*program, out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else if (name.endsWith(".metal")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler;
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toMetal(*program, out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else if (name.endsWith(".h")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler(SkSL::Compiler::kPermitInvalidStaticTests_Flag);
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
settings.fReplaceSettings = false;
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toH(*program, base_name(argv[1], "Gr", ".fp"), out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else if (name.endsWith(".cpp")) {
SkSL::FileOutputStream out(argv[2]);
SkSL::Compiler compiler(SkSL::Compiler::kPermitInvalidStaticTests_Flag);
if (!out.isValid()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
settings.fReplaceSettings = false;
std::unique_ptr<SkSL::Program> program = compiler.convertProgram(kind, text, settings);
if (!program || !compiler.toCPP(*program, base_name(argv[1], "Gr", ".fp"), out)) {
printf("%s", compiler.errorText().c_str());
exit(3);
}
if (!out.close()) {
printf("error writing '%s'\n", argv[2]);
exit(4);
}
} else {
printf("expected output filename to end with '.spirv', '.glsl', '.cpp', '.h', or '.metal'");
exit(1);
}
}
|
