Split tests into individual files. Got rid of globals by converting them to classes.

client/deps/glbench/src/testbase.h

+// Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BENCH_GL_TESTBASE_H_
+#define BENCH_GL_TESTBASE_H_
+
+#include "base/basictypes.h"
+
+#include "main.h"
+
+
+namespace glbench {
+
+class TestBase;
+
+// Runs test->TestFunc() passing it sequential powers of two (8, 16, 32,...)
+// recording time it took.  The data is then fitted linearly, obtaining slope
+// and bias such that:
+//   time it took to run x iterations = slope * x + bias
+// Returns false if one iteration of the test takes longer than
+// MAX_ITERATION_LENGTH_MS.  The test is then assumed too slow to provide
+// meaningful results.
+bool Bench(TestBase* test, float *slope, int64_t *bias);
+
+// Runs Bench on an instance of TestBase and prints out results.
+// 
+// coefficient is multiplied (if inverse is false) or divided (if inverse is
+// true) by the slope and the result is printed.
+//
+// Examples:
+//   coefficient = width * height (measured in pixels), inverse = true
+//       returns the throughput in megapixels per second;
+//
+//   coefficient = 1, inverse = false
+//       returns number of operations per second.
+void RunTest(TestBase* test, const char *name, float coefficient, bool inverse);
+
+
+class TestBase {
+ public:
+  virtual ~TestBase() {}
+  // Runs the test case n times.
+  virtual bool TestFunc(int n) = 0;
+  // Main entry point into the test.
+  virtual bool Run() = 0;
+};
+
+// Helper class to time glDrawArrays.
+class DrawArraysTestFunc : public TestBase {
+ public:
+  virtual ~DrawArraysTestFunc() {}
+  virtual bool TestFunc(int);
+
+  // Runs the test and reports results in mpixels per second, assuming each
+  // iteration updates the whole window (its size is g_width by g_height).
+  void FillRateTestNormal(const char* name);
+  // Runs the test and reports results in mpixels per second, assuming each
+  // iteration updates a window of width by height pixels.
+  void FillRateTestNormalSubWindow(const char* name, float width, float height);
+#ifndef USE_EGL
+  // Runs the test three times: with blending on; with depth test enabled and
+  // depth function of GL_NOTEQUAL; with depth function GL_NEVER.  Results are
+  // reported as in FillRateTestNormal.
+  void FillRateTestBlendDepth(const char *name);
+#endif
+};
+
+// Helper class to time glDrawElements.
+class DrawElementsTestFunc : public TestBase {
+ public:
+  DrawElementsTestFunc() : count_(0) {}
+  virtual ~DrawElementsTestFunc() {}
+  virtual bool TestFunc(int);
+
+ protected:
+  // Passed to glDrawElements.
+  GLsizei count_;
+};
+
+} // namespace glbench
+
+#endif // BENCH_GL_TESTBASE_H_