commit 8520e76f053756db28aa510eb7dd5f8af4594760
author Mike Reed <reed@google.com> Thu Apr 30 12:06:23 2020 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Thu Apr 30 16:52:22 2020 +0000
tree 6eb132f1fd77764f998855ecf5a4b90911777741
parent 1b3f93d2459ef4f12325c9c122a0d6e4f05f70b0

migrate spiral demo from canvaskit

- add atan, fract, dividef, subtractf

Also wants mix(), but I'm still learning how to handle 2 args
functions (e.g. how to support atan(y,x) as well)

Change-Id: Ib9f233cd1c4266110cfea68a7d444f834f875f1f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/286276
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Reed <reed@google.com>

src/sksl/SkSLByteCode.cpp

diff --git a/src/sksl/SkSLByteCode.cpp b/src/sksl/SkSLByteCode.cpp
index c2a1ab6..3af0f6f 100644
--- a/src/sksl/SkSLByteCode.cpp
+++ b/src/sksl/SkSLByteCode.cpp
@@ -51,6 +51,7 @@
         VECTOR_MATRIX_DISASSEMBLE(kAddF, "addf")
         VECTOR_DISASSEMBLE(kAddI, "addi")
         case ByteCodeInstruction::kAndB: printf("andb"); break;
+        VECTOR_DISASSEMBLE(kATan, "atan")
         case ByteCodeInstruction::kBranch: printf("branch %d", READ16()); break;
         case ByteCodeInstruction::kCall: printf("call %d", READ8()); break;
         case ByteCodeInstruction::kCallExternal: {
@@ -85,6 +86,7 @@
         VECTOR_DISASSEMBLE(kDivideS, "divideS")
         VECTOR_DISASSEMBLE(kDivideU, "divideu")
         VECTOR_MATRIX_DISASSEMBLE(kDup, "dup")
+        VECTOR_DISASSEMBLE(kFract, "fract")
         case ByteCodeInstruction::kInverse2x2: printf("inverse2x2"); break;
         case ByteCodeInstruction::kInverse3x3: printf("inverse3x3"); break;
         case ByteCodeInstruction::kInverse4x4: printf("inverse4x4"); break;
@@ -654,6 +656,8 @@
                 continue;
             }
 
+            VECTOR_UNARY_FN(kFract, skvx::fract, fFloat)
+
             case ByteCodeInstruction::kInverse2x2:
                 Inverse2x2(sp);
                 continue;
@@ -1062,6 +1066,7 @@
                 continue;
             }
 
+            VECTOR_UNARY_FN(kATan, skvx::atan, fFloat)
             VECTOR_UNARY_FN(kTan, skvx::tan, fFloat)
 
             case ByteCodeInstruction::kWriteExternal4: