Add GrBackendTexture/RenderTarget accessors to SkSurface

Change-Id: I63477fd4b8d48dc50af72736f0f8df566cd96d4a
Reviewed-on: https://skia-review.googlesource.com/85220
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Cary Clark <caryclark@skia.org>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/src/gpu/GrBackendSurface.cpp b/src/gpu/GrBackendSurface.cpp
index 978e66db0b..97b4d64706 100644
--- a/src/gpu/GrBackendSurface.cpp
+++ b/src/gpu/GrBackendSurface.cpp
@@ -290,3 +290,40 @@ const GrMockRenderTargetInfo* GrBackendRenderTarget::getMockRenderTargetInfo() c
     }
     return nullptr;
 }
+
+#if GR_TEST_UTILS
+bool GrBackendRenderTarget::TestingOnly_Equals(const GrBackendRenderTarget& r0,
+                                               const GrBackendRenderTarget& r1) {
+    if (!r0.isValid() || !r1.isValid()) {
+        return false; // two invalid backend rendertargets are not considered equal
+    }
+
+    if (r0.fWidth != r1.fWidth ||
+        r0.fHeight != r1.fHeight ||
+        r0.fSampleCnt != r1.fSampleCnt ||
+        r0.fStencilBits != r1.fStencilBits ||
+        r0.fConfig != r1.fConfig ||
+        r0.fBackend != r1.fBackend) {
+        return false;
+    }
+
+    switch (r0.fBackend) {
+    case kOpenGL_GrBackend:
+        return r0.fGLInfo == r1.fGLInfo;
+    case kMock_GrBackend:
+        return r0.fMockInfo == r1.fMockInfo;
+    case kVulkan_GrBackend:
+#ifdef SK_VULKAN
+        return r0.fVkInfo == r1.fVkInfo;
+#else
+        // fall through
+#endif
+    case kMetal_GrBackend: // fall through
+    default:
+        return false;
+    }
+
+    SkASSERT(0);
+    return false;
+}
+#endif