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

• Show log

  Commit

• Hash : 9a79c889
  Author :
  Date : 2018-10-29T17:08:42
  

  Run DifferentStencilMasks tests
  
  This test was added and referenced, but was actually never added to the
  list of files to be compiled.  The most recent validation work has been
  regarding WebGL.
  
  This test verifies the behavior when different stencil masks are set for
  front and back faces, which is unsupported in D3D and disallowed in
  WebGL.  In the interest of running the test on all back ends, and that
  the validation was modified last to improve WebGL support, the test runs
  in WebGL compatibility mode.
  
  Bug: chromium:806557
  Change-Id: I7615b9fc18d4203ed342e23881bea6bdd9b3864c
  Reviewed-on: https://chromium-review.googlesource.com/c/1306256
  Reviewed-by: Kai Ninomiya <kainino@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

Download

• src/tests/gl_tests/DifferentStencilMasksTest.cpp

• //
  // Copyright 2015 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.
  //
  // DifferentStencilMasksTest:
  //   Tests the equality between stencilWriteMask and stencilBackWriteMask.
  //
  
  #include "test_utils/ANGLETest.h"
  #include "test_utils/gl_raii.h"
  
  using namespace angle;
  
  namespace
  {
  class DifferentStencilMasksTest : public ANGLETest
  {
    protected:
      DifferentStencilMasksTest() : mProgram(0)
      {
          setWindowWidth(128);
          setWindowHeight(128);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
          setConfigDepthBits(24);
          setConfigStencilBits(8);
  
          setWebGLCompatibilityEnabled(true);
      }
  
      void SetUp() override
      {
          ANGLETest::SetUp();
  
          mProgram = CompileProgram(essl1_shaders::vs::Zero(), essl1_shaders::fs::Blue());
          ASSERT_NE(0u, mProgram);
  
          glEnable(GL_STENCIL_TEST);
          ASSERT_GL_NO_ERROR();
      }
  
      void TearDown() override
      {
          glDisable(GL_STENCIL_TEST);
          if (mProgram != 0)
              glDeleteProgram(mProgram);
  
          ANGLETest::TearDown();
      }
  
      GLuint mProgram;
  };
  
  // Tests that effectively same front and back masks are legal.
  TEST_P(DifferentStencilMasksTest, DrawWithSameEffectiveMask)
  {
      // 0x00ff and 0x01ff are effectively 0x00ff by being masked by the current stencil bits, 8.
      glStencilMaskSeparate(GL_FRONT, 0x00ff);
      glStencilMaskSeparate(GL_BACK, 0x01ff);
  
      glUseProgram(mProgram);
  
      glDrawArrays(GL_TRIANGLES, 0, 3);
  
      EXPECT_GL_NO_ERROR();
  }
  
  // Tests that effectively different front and back masks are illegal.
  TEST_P(DifferentStencilMasksTest, DrawWithDifferentMask)
  {
      glStencilMaskSeparate(GL_FRONT, 0x0001);
      glStencilMaskSeparate(GL_BACK, 0x0002);
  
      glUseProgram(mProgram);
  
      glDrawArrays(GL_TRIANGLES, 0, 3);
  
      EXPECT_GL_ERROR(GL_INVALID_OPERATION);
  }
  
  // Tests that effectively different front and back masks, without stencil bits, are legal.
  TEST_P(DifferentStencilMasksTest, DrawWithDifferentMask_NoStencilBuffer)
  {
      GLTexture texture;
      glBindTexture(GL_TEXTURE_2D, texture.get());
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
  
      GLFramebuffer framebuffer;
      glBindFramebuffer(GL_FRAMEBUFFER, framebuffer.get());
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture.get(), 0);
  
      glStencilMaskSeparate(GL_FRONT, 0x0001);
      glStencilMaskSeparate(GL_BACK, 0x0002);
  
      glUseProgram(mProgram);
  
      glDrawArrays(GL_TRIANGLES, 0, 3);
  
      EXPECT_GL_NO_ERROR();
  }
  
  // Use this to select which configurations (e.g. which renderer, which GLES major version) these
  // tests should be run against.
  ANGLE_INSTANTIATE_TEST(DifferentStencilMasksTest,
                         ES2_D3D9(),
                         ES2_D3D11(),
                         ES3_D3D11(),
                         ES2_OPENGL(),
                         ES3_OPENGL(),
                         ES2_VULKAN());
  } // anonymous namespace
  

Download