Add helper to create random AsFPArgs for Ganesh unit tests

Reduces copy-paste and eases maintenance. I'll be adding another field to
AsFPArgs soon, and this is going to streamline that change.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3639

Change-Id: I6372ed5dce50a5ba9d73039bd4714e34502a1f75
Reviewed-on: https://skia-review.googlesource.com/3639
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/gpu/GrTestUtils.cpp b/src/gpu/GrTestUtils.cpp
index 2aae8df375..a0a35ccf74 100644
--- a/src/gpu/GrTestUtils.cpp
+++ b/src/gpu/GrTestUtils.cpp
@@ -6,6 +6,7 @@
  */
 
 #include "GrTestUtils.h"
+#include "GrProcessorUnitTest.h"
 #include "GrStyle.h"
 #include "SkColorSpace.h"
 #include "SkDashPathPriv.h"
@@ -321,6 +322,19 @@ sk_sp<GrColorSpaceXform> TestColorXform(SkRandom* random) {
     return gXforms[random->nextULessThan(static_cast<uint32_t>(SK_ARRAY_COUNT(gXforms)))];
 }
 
+TestAsFPArgs::TestAsFPArgs(GrProcessorTestData* d) {
+    fViewMatrixStorage = TestMatrix(d->fRandom);
+    fColorSpaceStorage = TestColorSpace(d->fRandom);
+
+    fArgs.fContext = d->fContext;
+    fArgs.fViewMatrix = &fViewMatrixStorage;
+    fArgs.fLocalMatrix = nullptr;
+    fArgs.fFilterQuality = kNone_SkFilterQuality;
+    fArgs.fDstColorSpace = fColorSpaceStorage.get();
+    fArgs.fGammaTreatment = SkToBool(fArgs.fDstColorSpace)
+        ? SkSourceGammaTreatment::kRespect : SkSourceGammaTreatment::kIgnore;
+}
+
 }  // namespace GrTest
 
 #endif