blob: 680dfa92f9b39789340865ff9720c8daefaa5cd3 [file] [log] [blame]
// Copyright 2020 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
REG_FIDDLE(SkImage_to_PPM_ascii, 256, 256, true, 4) {
void dump_txt(const SkData* data, const char* name) {
if (data) {
SkDebugf("\ncat > %s << EOF\n", name);
size_t s = data->size();
const char* d = (const char*)data->bytes();
while (s > 0) {
int l = (int)std::min(s, (size_t)1024);
SkDebugf("%.*s", l, d);
s -= l;
d += l;
}
SkDebugf("\nEOF\n\n");
}
}
sk_sp<SkData> Encode_PPM_A(const SkPixmap& src) {
if (src.width() <= 0 || src.height() <= 0 || !src.addr() ||
src.colorType() == kUnknown_SkColorType) {
return nullptr;
}
SkDynamicMemoryWStream buf;
SkString s = SkStringPrintf("P3\n%d %d\n255\n", src.width(), src.height());
buf.write(s.c_str(), s.size());
for (int y = 0; y < src.height(); ++y) {
for (int x = 0; x < src.height(); ++x) {
char buffer[13];
SkColor c = src.getColor(x, y);
int n = snprintf(buffer, sizeof(buffer), "%d %d %d\n", SkColorGetR(c),
SkColorGetG(c), SkColorGetB(c));
if (n < 6 || n + 1 > (int)sizeof(buffer)) {
return nullptr;
}
buf.write(buffer, n);
}
}
return buf.detachAsData();
}
SkBitmap ToBitmap(SkImage * img) {
SkBitmap bitmap;
(void)img->asLegacyBitmap(&bitmap, SkImage::kRO_LegacyBitmapMode);
return bitmap;
}
void draw(SkCanvas*) {
SkBitmap bitmap = ToBitmap(image.get());
sk_sp<SkData> data = Encode_PPM_A(bitmap.pixmap());
dump_txt(data.get(), "fooa.ppm");
}
} // END FIDDLE