ccpr: Normalize homogeneous coords with frexp/ldexp

Hopefully increases cubic accuracy by manipulating exponents
instead of calling normalize().

Bug: skia:
Change-Id: I8d3596e858a2fbb6650c158753133c5a2e01e166
Reviewed-on: https://skia-review.googlesource.com/117009
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gpu/GrShaderCaps.cpp b/src/gpu/GrShaderCaps.cpp
index 5c6d0b9ce7..c0b34ab746 100644
--- a/src/gpu/GrShaderCaps.cpp
+++ b/src/gpu/GrShaderCaps.cpp
@@ -46,6 +46,7 @@ GrShaderCaps::GrShaderCaps(const GrContextOptions& options) {
     fExternalTextureSupport = false;
     fTexelFetchSupport = false;
     fVertexIDSupport = false;
+    fFPManipulationSupport = false;
     fFloatIs32Bits = true;
     fHalfIs32Bits = false;
 
@@ -118,6 +119,7 @@ void GrShaderCaps::dumpJSON(SkJSONWriter* writer) const {
     writer->appendBool("External texture support", fExternalTextureSupport);
     writer->appendBool("texelFetch support", fTexelFetchSupport);
     writer->appendBool("sk_VertexID support", fVertexIDSupport);
+    writer->appendBool("Floating point manipulation support", fFPManipulationSupport);
     writer->appendBool("float == fp32", fFloatIs32Bits);
     writer->appendBool("half == fp32", fHalfIs32Bits);