From 26b44df2333d5e8cec8aef11ab598d63b4ee05c7 Mon Sep 17 00:00:00 2001 From: Matt Sarett Date: Tue, 2 May 2017 16:04:56 -0400 Subject: Add support for row-by-row jpeg encoding Reland of: https://skia-review.googlesource.com/c/14641/ Bug: 713862 Change-Id: I9dca5ede4ebf569c5f80edcfb23a506b6cfa935e Reviewed-on: https://skia-review.googlesource.com/15144 Reviewed-by: Leon Scroggins Commit-Queue: Matt Sarett --- tests/EncodeTest.cpp | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 tests/EncodeTest.cpp (limited to 'tests/EncodeTest.cpp') diff --git a/tests/EncodeTest.cpp b/tests/EncodeTest.cpp new file mode 100644 index 0000000000..9db5039d59 --- /dev/null +++ b/tests/EncodeTest.cpp @@ -0,0 +1,56 @@ +/* + * 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 "Resources.h" +#include "Test.h" + +#include "SkBitmap.h" +#include "SkJpegEncoder.h" +#include "SkStream.h" + +DEF_TEST(Encode_Jpeg, r) { + SkBitmap bitmap; + bool success = GetResourceAsBitmap("mandrill_128.png", &bitmap); + if (!success) { + return; + } + + SkPixmap src; + success = bitmap.peekPixels(&src); + REPORTER_ASSERT(r, success); + if (!success) { + return; + } + + SkDynamicMemoryWStream dst0, dst1, dst2, dst3; + success = SkJpegEncoder::Encode(&dst0, src, SkJpegEncoder::Options()); + REPORTER_ASSERT(r, success); + + auto encoder1 = SkJpegEncoder::Make(&dst1, src, SkJpegEncoder::Options()); + for (int i = 0; i < src.height(); i++) { + success = encoder1->encodeRows(1); + REPORTER_ASSERT(r, success); + } + + auto encoder2 = SkJpegEncoder::Make(&dst2, src, SkJpegEncoder::Options()); + for (int i = 0; i < src.height(); i+=3) { + success = encoder2->encodeRows(3); + REPORTER_ASSERT(r, success); + } + + auto encoder3 = SkJpegEncoder::Make(&dst3, src, SkJpegEncoder::Options()); + success = encoder3->encodeRows(200); + REPORTER_ASSERT(r, success); + + sk_sp data0 = dst0.detachAsData(); + sk_sp data1 = dst1.detachAsData(); + sk_sp data2 = dst2.detachAsData(); + sk_sp data3 = dst3.detachAsData(); + REPORTER_ASSERT(r, data0->equals(data1.get())); + REPORTER_ASSERT(r, data0->equals(data2.get())); + REPORTER_ASSERT(r, data0->equals(data3.get())); +} -- cgit v1.2.3