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/*
* 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) && !defined(__ANDROID__)
#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::MakeFromFileName(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;
}
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