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
153
154
155
156
157
158
159
160
161
162
163
164
|
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <stdio.h>
#include <stdlib.h>
#include "SkForceLinking.h"
__SK_FORCE_IMAGE_DECODER_LINKING;
#include "fiddle_main.h"
// Globals externed in fiddle_main.h
SkBitmap source;
sk_sp<SkImage> image;
static void encode_to_base64(const void* data, size_t size, FILE* out) {
const uint8_t* input = reinterpret_cast<const uint8_t*>(data);
const uint8_t* end = &input[size];
static const char codes[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz0123456789+/";
while (input != end) {
uint8_t b = (*input & 0xFC) >> 2;
fputc(codes[b], out);
b = (*input & 0x03) << 4;
++input;
if (input == end) {
fputc(codes[b], out);
fputs("==", out);
return;
}
b |= (*input & 0xF0) >> 4;
fputc(codes[b], out);
b = (*input & 0x0F) << 2;
++input;
if (input == end) {
fputc(codes[b], out);
fputc('=', out);
return;
}
b |= (*input & 0xC0) >> 6;
fputc(codes[b], out);
b = *input & 0x3F;
fputc(codes[b], out);
++input;
}
}
static void dump_output(const sk_sp<SkData>& data,
const char* name, bool last = true) {
if (data) {
printf("\t\"%s\": \"", name);
encode_to_base64(data->data(), data->size(), stdout);
fputs(last ? "\"\n" : "\",\n", stdout);
}
}
static SkData* encode_snapshot(const sk_sp<SkSurface>& surface) {
sk_sp<SkImage> img(surface->makeImageSnapshot());
return img ? img->encode() : nullptr;
}
#if defined(__linux)
#include <GL/osmesa.h>
static sk_sp<GrContext> create_grcontext() {
// We just leak the OSMesaContext... the process will die soon anyway.
if (OSMesaContext osMesaContext = OSMesaCreateContextExt(OSMESA_BGRA, 0, 0, 0, nullptr)) {
static uint32_t buffer[16 * 16];
OSMesaMakeCurrent(osMesaContext, &buffer, GL_UNSIGNED_BYTE, 16, 16);
}
auto osmesa_get = [](void* ctx, const char name[]) {
SkASSERT(nullptr == ctx);
SkASSERT(OSMesaGetCurrentContext());
return OSMesaGetProcAddress(name);
};
sk_sp<const GrGLInterface> mesa(GrGLAssembleInterface(nullptr, osmesa_get));
if (!mesa) {
return nullptr;
}
return sk_sp<GrContext>(GrContext::Create(
kOpenGL_GrBackend,
reinterpret_cast<intptr_t>(mesa.get())));
}
#else
static sk_sp<GrContext> create_grcontext() { return nullptr; }
#endif
int main() {
const DrawOptions options = GetDrawOptions();
if (options.source) {
sk_sp<SkData> data(SkData::NewFromFileName(options.source));
if (!data) {
perror(options.source);
return 1;
} else {
image = SkImage::MakeFromEncoded(std::move(data));
if (!image) {
perror("Unable to decode the source image.");
return 1;
}
SkAssertResult(image->asLegacyBitmap(
&source, SkImage::kRO_LegacyBitmapMode));
}
}
sk_sp<SkData> rasterData, gpuData, pdfData, skpData;
if (options.raster) {
auto rasterSurface =
SkSurface::MakeRaster(SkImageInfo::MakeN32Premul(options.size));
srand(0);
draw(rasterSurface->getCanvas());
rasterData.reset(encode_snapshot(rasterSurface));
}
if (options.gpu) {
auto grContext = create_grcontext();
if (!grContext) {
fputs("Unable to get GrContext.\n", stderr);
} else {
auto surface = SkSurface::MakeRenderTarget(
grContext.get(),
SkBudgeted::kNo,
SkImageInfo::MakeN32Premul(options.size));
if (!surface) {
fputs("Unable to get render surface.\n", stderr);
exit(1);
}
srand(0);
draw(surface->getCanvas());
gpuData.reset(encode_snapshot(surface));
}
}
if (options.pdf) {
SkDynamicMemoryWStream pdfStream;
sk_sp<SkDocument> document(SkDocument::MakePDF(&pdfStream));
srand(0);
draw(document->beginPage(options.size.width(), options.size.height()));
document->close();
pdfData.reset(pdfStream.copyToData());
}
if (options.skp) {
SkSize size;
size = options.size;
SkPictureRecorder recorder;
srand(0);
draw(recorder.beginRecording(size.width(), size.height()));
auto picture = recorder.finishRecordingAsPicture();
SkDynamicMemoryWStream skpStream;
picture->serialize(&skpStream);
skpData.reset(skpStream.copyToData());
}
printf("{\n");
dump_output(rasterData, "Raster", !gpuData && !pdfData && !skpData);
dump_output(gpuData, "Gpu", !pdfData && !skpData);
dump_output(pdfData, "Pdf", !skpData);
dump_output(skpData, "Skp");
printf("}\n");
return 0;
}
|
