Index: tests/CodexTest.cpp |
diff --git a/tests/CodexTest.cpp b/tests/CodexTest.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ec597b60434e31dbd0088f30f9281b320a9fc156 |
--- /dev/null |
+++ b/tests/CodexTest.cpp |
@@ -0,0 +1,99 @@ |
+/* |
+ * 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 "Resources.h" |
+#include "SkBitmap.h" |
+#include "SkCodec.h" |
+#include "SkMD5.h" |
+#include "Test.h" |
+ |
+static SkStreamAsset* resource(const char path[]) { |
+ SkString fullPath = GetResourcePath(path); |
+ return SkStream::NewFromFile(fullPath.c_str()); |
+} |
+ |
+static void md5(const SkBitmap& bm, SkMD5::Digest* digest) { |
+ SkAutoLockPixels autoLockPixels(bm); |
+ SkASSERT(bm.getPixels()); |
+ SkMD5 md5; |
+ size_t rowLen = bm.info().bytesPerPixel() * bm.width(); |
+ for (int y = 0; y < bm.height(); ++y) { |
+ md5.update(static_cast<uint8_t*>(bm.getAddr(0, y)), rowLen); |
+ } |
+ md5.finish(*digest); |
+} |
+ |
+static void check(skiatest::Reporter* r, |
+ const char path[], |
+ SkISize size, |
+ bool canRewind) { |
+ SkAutoTDelete<SkStream> stream(resource(path)); |
+ if (!stream) { |
+ SkDebugf("Missing resource '%s'\n", path); |
+ return; |
+ } |
+ SkAutoTDelete<SkImageGenerator> gen( |
+ SkCodec::NewFromStream(stream.detach())); |
+ if (!gen) { |
+ ERRORF(r, "Unable to decode '%s'", path); |
+ return; |
+ } |
+ SkImageInfo info = gen->getInfo(); |
+ REPORTER_ASSERT(r, info.dimensions() == size); |
+ SkBitmap bm; |
+ bm.allocPixels(info); |
+ SkAutoLockPixels autoLockPixels(bm); |
+ SkImageGenerator::Result result = |
+ gen->getPixels(info, bm.getPixels(), bm.rowBytes(), NULL, NULL, NULL); |
+ REPORTER_ASSERT(r, result == SkImageGenerator::kSuccess); |
+ |
+ SkMD5::Digest digest1, digest2; |
+ md5(bm, &digest1); |
+ |
+ bm.eraseColor(SK_ColorYELLOW); |
+ |
+ result = |
+ gen->getPixels(info, bm.getPixels(), bm.rowBytes(), NULL, NULL, NULL); |
+ |
+ // All ImageGenerators should support re-decoding the pixels. |
+ // It is a known bug that some can not. |
+ if (canRewind) { |
+ REPORTER_ASSERT(r, result == SkImageGenerator::kSuccess); |
+ // verify that re-decoding gives the same result. |
+ md5(bm, &digest2); |
+ REPORTER_ASSERT(r, digest1 == digest2); |
+ } |
+} |
+ |
+DEF_TEST(Codec, r) { |
+ // WBMP |
+ check(r, "mandrill.wbmp", SkISize::Make(512, 512), true); |
+ |
+ // BMP |
+ // TODO (msarett): SkBmpCodec should be able to rewind. |
+ check(r, "randPixels.bmp", SkISize::Make(8, 8), false); |
+ |
+ // ICO |
+ // TODO (msarett): SkIcoCodec should be able to rewind. |
+ check(r, "color_wheel.ico", SkISize::Make(128, 128), false); |
+ |
+ // PNG |
+ // TODO (scroggo): SkPngCodec should be able to rewind. |
+ check(r, "arrow.png", SkISize::Make(187, 312), false); |
+ check(r, "baby_tux.png", SkISize::Make(240, 246), false); |
+ check(r, "color_wheel.png", SkISize::Make(128, 128), false); |
+ check(r, "half-transparent-white-pixel.png", SkISize::Make(1, 1), false); |
+ check(r, "mandrill_128.png", SkISize::Make(128, 128), false); |
+ check(r, "mandrill_16.png", SkISize::Make(16, 16), false); |
+ check(r, "mandrill_256.png", SkISize::Make(256, 256), false); |
+ check(r, "mandrill_32.png", SkISize::Make(32, 32), false); |
+ check(r, "mandrill_512.png", SkISize::Make(512, 512), false); |
+ check(r, "mandrill_64.png", SkISize::Make(64, 64), false); |
+ check(r, "plane.png", SkISize::Make(250, 126), false); |
+ check(r, "randPixels.png", SkISize::Make(8, 8), false); |
+ check(r, "yellow_rose.png", SkISize::Make(400, 301), false); |
+} |