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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 <cstdio>
#include <cstdlib>
#include <sstream>
#include <string>
#include "SkCommandLineFlags.h"
#include "fiddle_main.h"
DEFINE_double(duration, 1.0, "The total duration, in seconds, of the animation we are drawing.");
DEFINE_double(frame, 1.0, "A double value in [0, 1] that specifies the point in animation to draw.");
// Globals externed in fiddle_main.h
SkBitmap source;
sk_sp<SkImage> image;
double duration; // The total duration of the animation in seconds.
double frame; // A value in [0, 1] of where we are in the animation.
// Global used by the local impl of SkDebugf.
std::ostringstream gTextOutput;
// Global to record the GL driver info via create_grcontext().
std::ostringstream gGLDriverInfo;
void SkDebugf(const char * fmt, ...) {
va_list args;
va_start(args, fmt);
char formatbuffer[1024];
int n = vsnprintf(formatbuffer, sizeof(formatbuffer), fmt, args);
va_end(args);
if (n>=0 && n<=int(sizeof(formatbuffer))) {
gTextOutput.write(formatbuffer, n);
}
}
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 void* data, size_t size,
const char* name, bool last = true) {
printf("\t\"%s\": \"", name);
encode_to_base64(data, size, stdout);
fputs(last ? "\"\n" : "\",\n", stdout);
}
static void dump_output(const sk_sp<SkData>& data,
const char* name, bool last = true) {
if (data) {
dump_output(data->data(), data->size(), name, last);
}
}
static SkData* encode_snapshot(const sk_sp<SkSurface>& surface) {
sk_sp<SkImage> img(surface->makeImageSnapshot());
return img ? img->encode() : nullptr;
}
static SkCanvas* prepare_canvas(SkCanvas * canvas) {
canvas->clear(SK_ColorWHITE);
return canvas;
}
int main(int argc, char** argv) {
SkCommandLineFlags::Parse(argc, argv);
duration = FLAGS_duration;
frame = FLAGS_frame;
DrawOptions options = GetDrawOptions();
// If textOnly then only do one type of image, otherwise the text
// output is duplicated for each type.
if (options.textOnly) {
options.raster = true;
options.gpu = false;
options.pdf = false;
options.skp = false;
}
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;
SkColorType colorType = kN32_SkColorType;
sk_sp<SkColorSpace> colorSpace = nullptr;
if (options.f16) {
SkASSERT(options.srgb);
colorType = kRGBA_F16_SkColorType;
colorSpace = SkColorSpace::MakeSRGBLinear();
} else if (options.srgb) {
colorSpace = SkColorSpace::MakeSRGB();
}
SkImageInfo info = SkImageInfo::Make(options.size.width(), options.size.height(), colorType,
kPremul_SkAlphaType, colorSpace);
if (options.raster) {
auto rasterSurface = SkSurface::MakeRaster(info);
srand(0);
draw(prepare_canvas(rasterSurface->getCanvas()));
rasterData.reset(encode_snapshot(rasterSurface));
}
if (options.gpu) {
auto grContext = create_grcontext(gGLDriverInfo);
if (!grContext) {
fputs("Unable to get GrContext.\n", stderr);
} else {
auto surface = SkSurface::MakeRenderTarget(grContext.get(), SkBudgeted::kNo, info);
if (!surface) {
fputs("Unable to get render surface.\n", stderr);
exit(1);
}
srand(0);
draw(prepare_canvas(surface->getCanvas()));
gpuData.reset(encode_snapshot(surface));
}
}
if (options.pdf) {
SkDynamicMemoryWStream pdfStream;
sk_sp<SkDocument> document(SkDocument::MakePDF(&pdfStream));
if (document) {
srand(0);
draw(prepare_canvas(document->beginPage(options.size.width(), options.size.height())));
document->close();
pdfData = pdfStream.detachAsData();
}
}
if (options.skp) {
SkSize size;
size = options.size;
SkPictureRecorder recorder;
srand(0);
draw(prepare_canvas(recorder.beginRecording(size.width(), size.height())));
auto picture = recorder.finishRecordingAsPicture();
SkDynamicMemoryWStream skpStream;
picture->serialize(&skpStream);
skpData = skpStream.detachAsData();
}
printf("{\n");
if (!options.textOnly) {
dump_output(rasterData, "Raster", false);
dump_output(gpuData, "Gpu", false);
dump_output(pdfData, "Pdf", false);
dump_output(skpData, "Skp", false);
} else {
std::string textoutput = gTextOutput.str();
dump_output(textoutput.c_str(), textoutput.length(), "Text", false);
}
std::string glinfo = gGLDriverInfo.str();
dump_output(glinfo.c_str(), glinfo.length(), "GLInfo", true);
printf("}\n");
return 0;
}
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