add serial procs to pictures
Bug: skia:7380
Change-Id: Ic1b7e437316c7913711cf5cb119e3fe904cd2c05
Reviewed-on: https://skia-review.googlesource.com/76980
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
diff --git a/tests/SerialProcsTest.cpp b/tests/SerialProcsTest.cpp
new file mode 100644
index 0000000..7368a20
--- /dev/null
+++ b/tests/SerialProcsTest.cpp
@@ -0,0 +1,93 @@
+/*
+ * 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, SkWStream* stream, void* ctx) {
+ return false;
+ },
+ [](SkImage* img, SkWStream* stream, void* ctx) {
+ auto d = img->encodeToData();
+ stream->write(d->data(), d->size());
+ return true;
+ },
+ [](SkImage* img, SkWStream* stream, void* ctx) {
+ State* state = (State*)ctx;
+ stream->write(state->fStr, strlen(state->fStr));
+ return true;
+ },
+ };
+ 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*) -> sk_sp<SkImage> {
+ 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) || 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()));
+ }
+}
+