Modify QCMS test to match use by Chrome

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2049813002

Review-Url: https://codereview.chromium.org/2049813002

diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index 9927c30..0490e6f 100644 (file)
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -921,6 +921,10 @@ Error ColorCodecSrc::draw(SkCanvas* canvas) const {
             SkAutoTCallVProc<qcms_profile, qcms_profile_release>
                     dstSpace(qcms_profile_from_memory(dstData->data(), dstData->size()));
             SkASSERT(dstSpace);
+
+            // Optimizes conversion by precomputing the inverse transformation to dst.  Also
+            // causes QCMS to use a completely different codepath.  This is how Chrome uses QCMS.
+            qcms_profile_precache_output_transform(dstSpace);
             SkAutoTCallVProc<qcms_transform, qcms_transform_release>
                     transform (qcms_transform_create(srcSpace, QCMS_DATA_RGBA_8, dstSpace,
                                                      QCMS_DATA_RGBA_8, QCMS_INTENT_PERCEPTUAL));