kc3-lang/angle/tests/angle_tests/BufferDataNULLTest.cpp

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• Author : Geoff Lang
  Date : 2013-10-18 16:14:52
  Hash : d990f8e2
  Message : Added tests for NULL buffer data. TRAC #23776 Signed-off-by: Jamie Madill Signed-off-by: Shannon Woods

• tests/angle_tests/BufferDataNULLTest.cpp

• #include "ANGLETest.h"
  
  class BufferDataNULLTest : public ANGLETest
  {
  protected:
      BufferDataNULLTest()
      {
          setWindowWidth(1);
          setWindowHeight(1);
      }
  };
  
  TEST_F(BufferDataNULLTest, null_data)
  {
      GLuint buf;
      glGenBuffers(1, &buf);
      ASSERT_NE(buf, 0U);
  
      glBindBuffer(GL_ARRAY_BUFFER, buf);
      EXPECT_GL_NO_ERROR();
  
      const int numIterations = 128;
      for (int i = 0; i < numIterations; ++i)
      {
          GLsizei bufferSize = sizeof(GLfloat) * (i + 1);
          glBufferData(GL_ARRAY_BUFFER, bufferSize, NULL, GL_STATIC_DRAW);
          EXPECT_GL_NO_ERROR();
  
          for (int j = 0; j < bufferSize; j++)
          {
              for (int k = 0; k < bufferSize - j; k++)
              {
                  glBufferSubData(GL_ARRAY_BUFFER, k, j, NULL);
                  EXPECT_GL_NO_ERROR();
              }
          }
      }
  
      glDeleteBuffers(1, &buf);
      EXPECT_GL_NO_ERROR();
  }