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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "Resources.h"
#include "sk_tool_utils.h"
#include "SkCanvas.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "SkSerialProcs.h"
#include "SkSurface.h"
static sk_sp<SkImage> picture_to_image(sk_sp<SkPicture> pic) {
SkIRect r = pic->cullRect().round();
auto surf = SkSurface::MakeRasterN32Premul(r.width(), r.height());
surf->getCanvas()->drawPicture(pic);
return surf->makeImageSnapshot();
}
struct State {
const char* fStr;
SkImage* fImg;
};
DEF_TEST(serial_procs_image, reporter) {
auto src_img = GetResourceAsImage("mandrill_128.png");
const char magic_str[] = "magic signature";
const SkSerialImageProc sprocs[] = {
[](SkImage* img, void* ctx) -> sk_sp<SkData> { return nullptr; },
[](SkImage* img, void* ctx) { return img->encodeToData(); },
[](SkImage* img, void* ctx) { return SkData::MakeWithCString(((State*)ctx)->fStr); },
};
const SkDeserialImageProc dprocs[] = {
[](const void* data, size_t length, void*) -> sk_sp<SkImage> {
SK_ABORT("should not get called");
return nullptr;
},
[](const void* data, size_t length, void*) {
return SkImage::MakeFromEncoded(SkData::MakeWithCopy(data, length));
},
[](const void* data, size_t length, void* ctx) -> sk_sp<SkImage> {
State* state = (State*)ctx;
if (length != strlen(state->fStr)+1 || memcmp(data, state->fStr, length)) {
return nullptr;
}
return sk_ref_sp(state->fImg);
},
};
sk_sp<SkPicture> pic;
{
SkPictureRecorder rec;
SkCanvas* canvas = rec.beginRecording(128, 128);
canvas->drawImage(src_img, 0, 0, nullptr);
pic = rec.finishRecordingAsPicture();
}
State state = { magic_str, src_img.get() };
SkSerialProcs sproc;
sproc.fImageCtx = &state;
SkDeserialProcs dproc;
dproc.fImageCtx = &state;
for (size_t i = 0; i < SK_ARRAY_COUNT(sprocs); ++i) {
sproc.fImageProc = sprocs[i];
auto data = pic->serialize(sproc);
REPORTER_ASSERT(reporter, data);
dproc.fImageProc = dprocs[i];
auto new_pic = SkPicture::MakeFromData(data, dproc);
REPORTER_ASSERT(reporter, data);
auto dst_img = picture_to_image(new_pic);
REPORTER_ASSERT(reporter, sk_tool_utils::equal_pixels(src_img.get(), dst_img.get()));
}
}
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