Make mock GrContext unit testable.

Bug: skia:
Change-Id: I959122f1f2c390832ab1033bcdbdd2ca6cfc0419
Reviewed-on: https://skia-review.googlesource.com/20699
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/src/gpu/mock/GrMockCaps.h b/src/gpu/mock/GrMockCaps.h
new file mode 100644
index 0000000000..7190ad7d61
--- /dev/null
+++ b/src/gpu/mock/GrMockCaps.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrMockCaps_DEFINED
+#define GrMockCaps_DEFINED
+
+#include "GrCaps.h"
+#include "mock/GrMockOptions.h"
+
+class GrMockCaps : public GrCaps {
+public:
+    GrMockCaps(const GrContextOptions& contextOptions, const GrMockOptions& options)
+            : INHERITED(contextOptions), fOptions(options) {
+        fBufferMapThreshold = SK_MaxS32;
+        fMaxTextureSize = options.fMaxTextureSize;
+        fMaxRenderTargetSize = SkTMin(options.fMaxRenderTargetSize, fMaxTextureSize);
+        fMaxVertexAttributes = options.fMaxVertexAttributes;
+        fShaderCaps.reset(new GrShaderCaps(contextOptions));
+    }
+    bool isConfigTexturable(GrPixelConfig config) const override {
+        return fOptions.fConfigOptions[config].fTexturable;
+    }
+    bool isConfigRenderable(GrPixelConfig config, bool withMSAA) const override {
+        return fOptions.fConfigOptions[config].fRenderable[withMSAA];
+    }
+    bool canConfigBeImageStorage(GrPixelConfig) const override { return false; }
+    bool initDescForDstCopy(const GrRenderTargetProxy* src, GrSurfaceDesc* desc,
+                            bool* rectsMustMatch, bool* disallowSubrect) const override {
+        return false;
+    }
+
+private:
+    GrMockOptions fOptions;
+    typedef GrCaps INHERITED;
+};
+
+#endif