112 lines
3.8 KiB
C++
112 lines
3.8 KiB
C++
/*
|
|
* 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 supportsScanlineDecoding) {
|
|
SkAutoTDelete<SkStream> stream(resource(path));
|
|
if (!stream) {
|
|
SkDebugf("Missing resource '%s'\n", path);
|
|
return;
|
|
}
|
|
SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.detach()));
|
|
if (!codec) {
|
|
ERRORF(r, "Unable to decode '%s'", path);
|
|
return;
|
|
}
|
|
SkImageInfo info = codec->getInfo();
|
|
REPORTER_ASSERT(r, info.dimensions() == size);
|
|
SkBitmap bm;
|
|
bm.allocPixels(info);
|
|
SkAutoLockPixels autoLockPixels(bm);
|
|
SkImageGenerator::Result result =
|
|
codec->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 =
|
|
codec->getPixels(info, bm.getPixels(), bm.rowBytes(), NULL, NULL, NULL);
|
|
|
|
REPORTER_ASSERT(r, result == SkImageGenerator::kSuccess);
|
|
// verify that re-decoding gives the same result.
|
|
md5(bm, &digest2);
|
|
REPORTER_ASSERT(r, digest1 == digest2);
|
|
|
|
SkScanlineDecoder* scanlineDecoder = codec->getScanlineDecoder(info);
|
|
if (supportsScanlineDecoding) {
|
|
bm.eraseColor(SK_ColorYELLOW);
|
|
REPORTER_ASSERT(r, scanlineDecoder);
|
|
for (int y = 0; y < info.height(); y++) {
|
|
result = scanlineDecoder->getScanlines(bm.getAddr(0, y), 1, 0);
|
|
REPORTER_ASSERT(r, result == SkImageGenerator::kSuccess);
|
|
}
|
|
// verify that scanline decoding gives the same result.
|
|
SkMD5::Digest digest3;
|
|
md5(bm, &digest3);
|
|
REPORTER_ASSERT(r, digest3 == digest1);
|
|
} else {
|
|
REPORTER_ASSERT(r, !scanlineDecoder);
|
|
}
|
|
}
|
|
|
|
DEF_TEST(Codec, r) {
|
|
// WBMP
|
|
check(r, "mandrill.wbmp", SkISize::Make(512, 512), false);
|
|
|
|
// BMP
|
|
check(r, "randPixels.bmp", SkISize::Make(8, 8), false);
|
|
|
|
// ICO
|
|
// These two tests examine interestingly different behavior:
|
|
// Decodes an embedded BMP image
|
|
check(r, "color_wheel.ico", SkISize::Make(128, 128), false);
|
|
// Decodes an embedded PNG image
|
|
check(r, "google_chrome.ico", SkISize::Make(256, 256), false);
|
|
|
|
// PNG
|
|
check(r, "arrow.png", SkISize::Make(187, 312), true);
|
|
check(r, "baby_tux.png", SkISize::Make(240, 246), true);
|
|
check(r, "color_wheel.png", SkISize::Make(128, 128), true);
|
|
check(r, "half-transparent-white-pixel.png", SkISize::Make(1, 1), true);
|
|
check(r, "mandrill_128.png", SkISize::Make(128, 128), true);
|
|
check(r, "mandrill_16.png", SkISize::Make(16, 16), true);
|
|
check(r, "mandrill_256.png", SkISize::Make(256, 256), true);
|
|
check(r, "mandrill_32.png", SkISize::Make(32, 32), true);
|
|
check(r, "mandrill_512.png", SkISize::Make(512, 512), true);
|
|
check(r, "mandrill_64.png", SkISize::Make(64, 64), true);
|
|
check(r, "plane.png", SkISize::Make(250, 126), true);
|
|
check(r, "randPixels.png", SkISize::Make(8, 8), true);
|
|
check(r, "yellow_rose.png", SkISize::Make(400, 301), true);
|
|
}
|