kc3-lang/angle/src/tests/gl_tests/RenderbufferMultisampleTest.cpp

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• Author : Yunchao He
  Date : 2018-01-22 09:48:48
  Hash : c081020c
  Message : ES3.1: multisample renderbuffer can support interger format. BUG=angleproject:2315 Change-Id: I3ef289a6043745c822e1c9b0a1b363ac81292c4c Reviewed-on: https://chromium-review.googlesource.com/878021 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>

• src/tests/gl_tests/RenderbufferMultisampleTest.cpp

• //
  // Copyright 2018 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // RenderbufferMultisampleTest: Tests of multisampled renderbuffer
  
  #include "test_utils/ANGLETest.h"
  #include "test_utils/gl_raii.h"
  
  using namespace angle;
  
  namespace
  {
  
  class RenderbufferMultisampleTest : public ANGLETest
  {
    protected:
      RenderbufferMultisampleTest()
      {
          setWindowWidth(64);
          setWindowHeight(64);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
      }
  
      void SetUp() override
      {
          ANGLETest::SetUp();
  
          glGenRenderbuffers(1, &mRenderbuffer);
  
          ASSERT_GL_NO_ERROR();
      }
  
      void TearDown() override
      {
          glDeleteRenderbuffers(1, &mRenderbuffer);
          mRenderbuffer = 0;
  
          ANGLETest::TearDown();
      }
  
      GLuint mRenderbuffer = 0;
  };
  
  // In GLES 3.0, if internalformat is integer (signed or unsigned), to allocate multisample
  // renderbuffer storage for that internalformat is not supported. An INVALID_OPERATION is
  // generated. In GLES 3.1, it is OK to allocate multisample renderbuffer storage for interger
  // internalformat, but the max samples should be less than MAX_INTEGER_SAMPLES.
  // MAX_INTEGER_SAMPLES should be at least 1.
  TEST_P(RenderbufferMultisampleTest, IntegerInternalformat)
  {
      glBindRenderbuffer(GL_RENDERBUFFER, mRenderbuffer);
      glRenderbufferStorageMultisample(GL_RENDERBUFFER, 1, GL_RGBA8I, 64, 64);
      if (getClientMajorVersion() < 3 || getClientMinorVersion() < 1)
      {
          ASSERT_GL_ERROR(GL_INVALID_OPERATION);
      }
      else
      {
          ASSERT_GL_NO_ERROR();
  
          GLint maxSamplesRGBA8I = 0;
          glGetInternalformativ(GL_RENDERBUFFER, GL_RGBA8I, GL_SAMPLES, 1, &maxSamplesRGBA8I);
          GLint maxIntegerSamples = 0;
          glGetIntegerv(GL_MAX_INTEGER_SAMPLES, &maxIntegerSamples);
          ASSERT_GL_NO_ERROR();
          EXPECT_GE(maxIntegerSamples, 1);
  
          glRenderbufferStorageMultisample(GL_RENDERBUFFER, maxSamplesRGBA8I + 1, GL_RGBA8I, 64, 64);
          ASSERT_GL_ERROR(GL_INVALID_OPERATION);
          glRenderbufferStorageMultisample(GL_RENDERBUFFER, maxIntegerSamples + 1, GL_RGBA8I, 64, 64);
          ASSERT_GL_ERROR(GL_INVALID_OPERATION);
      }
  }
  
  ANGLE_INSTANTIATE_TEST(RenderbufferMultisampleTest,
                         ES3_D3D11(),
                         ES3_OPENGL(),
                         ES3_OPENGLES(),
                         ES31_D3D11(),
                         ES31_OPENGL(),
                         ES31_OPENGLES());
  }