Add color correction benchmark - with comparison to qcms

bench/ColorCodecBench.cpp

Index: bench/ColorCodecBench.cpp
diff --git a/bench/ColorCodecBench.cpp b/bench/ColorCodecBench.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..1b0ddb36eded437190cc49d83124486af7034364
--- /dev/null
+++ b/bench/ColorCodecBench.cpp
@@ -0,0 +1,202 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "ColorCodecBench.h"
+#include "Resources.h"
+#include "SkCodec.h"
+#include "SkColorSpaceXform.h"
+#include "SkCommandLineFlags.h"
+
+#if !defined(GOOGLE3)
+DEFINE_bool(qcms, false, "Bench qcms color conversion");
+#endif
+DEFINE_bool(xform_only, false, "Only time the color xform, do not include the decode time");
+
+ColorCodecBench::ColorCodecBench(const char* name, sk_sp<SkData> encoded)
+    : fEncoded(std::move(encoded))
+#if !defined(GOOGLE3)
+    , fDstSpaceQCMS(nullptr)
+#endif
+{
+    fName.appendf("Color%s", FLAGS_xform_only ? "Xform" : "Codec");
+#if !defined(GOOGLE3)
+    fName.appendf("%s", FLAGS_qcms ? "QCMS" : "");
+#endif
+    fName.appendf("_%s", name);
+}
+
+const char* ColorCodecBench::onGetName() {
+    return fName.c_str();
+}
+
+bool ColorCodecBench::isSuitableFor(Backend backend) {
+    return kNonRendering_Backend == backend;
+}
+
+void ColorCodecBench::decodeAndXform() {
+    SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(fEncoded.get()));
+#ifdef SK_DEBUG
+    const SkCodec::Result result =
+#endif
+    codec->startScanlineDecode(fInfo);
+    SkASSERT(SkCodec::kSuccess == result);
+
+    sk_sp<SkColorSpace> srcSpace = sk_ref_sp(codec->getColorSpace());
+    if (!srcSpace) {
+        srcSpace = SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named);
+    }
+    std::unique_ptr<SkColorSpaceXform> xform = SkColorSpaceXform::New(srcSpace, fDstSpace);
+    SkASSERT(xform);
+
+    void* dst = fDst.get();
+    for (int y = 0; y < fInfo.height(); y++) {
+#ifdef SK_DEBUG
+        const int rows =
+#endif
+        codec->getScanlines(fSrc.get(), 1, 0);
+        SkASSERT(1 == rows);
+
+        xform->xform_RGBA_8888((uint32_t*) dst, (uint32_t*) fSrc.get(), fInfo.width());
+        dst = SkTAddOffset<void>(dst, fInfo.minRowBytes());
+    }
+}
+
+#if !defined(GOOGLE3)
+void ColorCodecBench::decodeAndXformQCMS() {
+    SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(fEncoded.get()));
+#ifdef SK_DEBUG
+    const SkCodec::Result result =
+#endif
+    codec->startScanlineDecode(fInfo);
+    SkASSERT(SkCodec::kSuccess == result);
+
+    SkAutoTCallVProc<qcms_profile, qcms_profile_release>
+            srcSpace(qcms_profile_from_memory(fSrcData->data(), fSrcData->size()));
+    SkASSERT(srcSpace);
+
+    SkAutoTCallVProc<qcms_transform, qcms_transform_release>
+            transform (qcms_transform_create(srcSpace, QCMS_DATA_RGBA_8, fDstSpaceQCMS.get(),
+                                             QCMS_DATA_RGBA_8, QCMS_INTENT_PERCEPTUAL));
+    SkASSERT(transform);
+
+#ifdef SK_PMCOLOR_IS_RGBA
+    qcms_output_type outType = QCMS_OUTPUT_RGBX;
+#else
+    qcms_output_type outType = QCMS_OUTPUT_BGRX;
+#endif
+
+    void* dst = fDst.get();
+    for (int y = 0; y < fInfo.height(); y++) {
+#ifdef SK_DEBUG
+        const int rows =
+#endif
+        codec->getScanlines(fSrc.get(), 1, 0);
+        SkASSERT(1 == rows);
+
+        qcms_transform_data_type(transform, fSrc.get(), dst, fInfo.width(), outType);
+        dst = SkTAddOffset<void>(dst, fInfo.minRowBytes());
+    }
+}
+#endif
+
+void ColorCodecBench::xformOnly() {
+    sk_sp<SkColorSpace> srcSpace = SkColorSpace::NewICC(fSrcData->data(), fSrcData->size());
+    if (!srcSpace) {
+        srcSpace = SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named);
+    }
+    std::unique_ptr<SkColorSpaceXform> xform = SkColorSpaceXform::New(srcSpace, fDstSpace);
+    SkASSERT(xform);
+
+    void* dst = fDst.get();
+    void* src = fSrc.get();
+    for (int y = 0; y < fInfo.height(); y++) {
+        // Transform in place
+        xform->xform_RGBA_8888((uint32_t*) dst, (uint32_t*) src, fInfo.width());
+        dst = SkTAddOffset<void>(dst, fInfo.minRowBytes());
+        src = SkTAddOffset<void>(src, fInfo.minRowBytes());
+    }
+}
+
+#if !defined(GOOGLE3)
+void ColorCodecBench::xformOnlyQCMS() {
+    SkAutoTCallVProc<qcms_profile, qcms_profile_release>
+            srcSpace(qcms_profile_from_memory(fSrcData->data(), fSrcData->size()));
+    SkASSERT(srcSpace);
+
+    SkAutoTCallVProc<qcms_transform, qcms_transform_release>
+            transform (qcms_transform_create(srcSpace, QCMS_DATA_RGBA_8, fDstSpaceQCMS.get(),
+                                             QCMS_DATA_RGBA_8, QCMS_INTENT_PERCEPTUAL));
+    SkASSERT(transform);
+
+#ifdef SK_PMCOLOR_IS_RGBA
+    qcms_output_type outType = QCMS_OUTPUT_RGBX;
+#else
+    qcms_output_type outType = QCMS_OUTPUT_BGRX;
+#endif
+
+    void* dst = fDst.get();
+    void* src = fSrc.get();
+    for (int y = 0; y < fInfo.height(); y++) {
+        // Transform in place
+        qcms_transform_data_type(transform, src, dst, fInfo.width(), outType);
+        dst = SkTAddOffset<void>(dst, fInfo.minRowBytes());
+        src = SkTAddOffset<void>(src, fInfo.minRowBytes());
+    }
+}
+#endif
+
+void ColorCodecBench::onDelayedSetup() {
+    SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(fEncoded.get()));
+    fInfo = codec->getInfo().makeColorType(kRGBA_8888_SkColorType);
+
+    fDst.reset(fInfo.getSafeSize(fInfo.minRowBytes()));
+    if (FLAGS_xform_only) {
+        fSrc.reset(fInfo.getSafeSize(fInfo.minRowBytes()));
+        codec->getPixels(fInfo, fSrc.get(), fInfo.minRowBytes());
+    } else {
+        // Set-up a row buffer to decode into before transforming to dst.
+        fSrc.reset(fInfo.minRowBytes());
+    }
+
+    fSrcData = codec->getICCData();
+    sk_sp<SkData> dstData = SkData::MakeFromFileName(
+            GetResourcePath("monitor_profiles/HP_ZR30w.icc").c_str());
+    SkASSERT(dstData);
+
+
+#if !defined(GOOGLE3)
+    if (FLAGS_qcms) {
+        fDstSpaceQCMS.reset(qcms_profile_from_memory(dstData->data(), dstData->size()));
+        SkASSERT(fDstSpaceQCMS);
+    } else
+#endif
+    {
+        fDstSpace = SkColorSpace::NewICC(dstData->data(), dstData->size());
+        SkASSERT(fDstSpace);
+    }
+}
+
+void ColorCodecBench::onDraw(int n, SkCanvas*) {
+    for (int i = 0; i < n; i++) {
+#if !defined(GOOGLE3)
+        if (FLAGS_qcms) {
+            if (FLAGS_xform_only) {
+                this->xformOnlyQCMS();
+            } else {
+                this->decodeAndXformQCMS();
+            }
+        } else
+#endif
+        {
+            if (FLAGS_xform_only) {
+                this->xformOnly();
+            } else {
+                this->decodeAndXform();
+            }
+        }
+    }
+}