implemented getting format from texture as virtual in gpu caps

Bug: skia:
Change-Id: If6bbbd212ff472ea322d2bbed61995fe7ba85df7
Reviewed-on: https://skia-review.googlesource.com/138240
Commit-Queue: Timothy Liang <timliang@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/gpu/GrCaps.cpp b/src/gpu/GrCaps.cpp
index db4681a3aa..c70033578c 100644
--- a/src/gpu/GrCaps.cpp
+++ b/src/gpu/GrCaps.cpp
@@ -262,3 +262,10 @@ bool GrCaps::validateSurfaceDesc(const GrSurfaceDesc& desc, GrMipMapped mipped)
 
     return true;
 }
+
+GrBackendFormat GrCaps::createFormatFromBackendTexture(const GrBackendTexture& backendTex) const {
+    if (!backendTex.isValid()) {
+        return GrBackendFormat();
+    }
+    return this->onCreateFormatFromBackendTexture(backendTex);
+}