Use client side arrays for GL_STREAM_DRAW attributes

gpu/command_buffer/tests/gl_test_utils.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/tests/gl_test_utils.h"
 #include <string>
 #include <stdio.h>
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ skipping 90 matching lines @@
      -1.0f, -1.0f,
       1.0f, -1.0f,
   };
   glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
   glEnableVertexAttribArray(position_location);
   glVertexAttribPointer(position_location, 2, GL_FLOAT, GL_FALSE, 0, 0);
 
   return vbo;
 }
 
+GLuint GLTestHelper::SetupColorsForUnitQuad(
+    GLint location, const GLfloat color[4], GLenum usage) {
+  GLuint vbo = 0;
+  glGenBuffers(1, &vbo);
+  glBindBuffer(GL_ARRAY_BUFFER, vbo);
+  GLfloat vertices[6 * 4];
+  for (int ii = 0; ii < 6; ++ii) {
+    for (int jj = 0; jj < 4; ++jj) {
+      vertices[ii * 4 + jj] = color[jj];
+    }
+  }
+  glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, usage);
+  glEnableVertexAttribArray(location);
+  glVertexAttribPointer(location, 4, GL_FLOAT, GL_FALSE, 0, 0);
+
+  return vbo;
+}
+
 bool GLTestHelper::CheckPixels(
     GLint x, GLint y, GLsizei width, GLsizei height, GLint tolerance,
     const uint8* color) {
   GLsizei size = width * height * 4;
   scoped_array<uint8> pixels(new uint8[size]);
   memset(pixels.get(), kCheckClearValue, size);
   glReadPixels(x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixels.get());
   bool same = true;
   for (GLint yy = 0; yy < height; ++yy) {
     for (GLint xx = 0; xx < width; ++xx) {
@@ skipping 94 matching lines @@
   fwrite(&bih, sizeof(bih), 1, fp);
   fwrite(pixels, size, 1, fp);
   fclose(fp);
   return true;
 }
 
 int GLTestHelper::RunTests(int argc, char** argv) {
   testing::InitGoogleMock(&argc, argv);
   return RUN_ALL_TESTS();
 }