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

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• Author : Geoff Lang
  Date : 2016-01-20 10:58:17
  Hash : e0cc2a4a
  Message : Enable all angle_end2end_tests targeting OpenGL and OpenGL ES backends. Added failure supressions and filed bugs for failing tests. BUG=angleproject:1145 BUG=angleproject:1289 BUG=angleproject:1291 BUG=angleproject:1292 BUG=angleproject:1293 BUG=angleproject:1296 Change-Id: Ida78ba855500fe8a6ce6154d43ee01520330e3b1 Reviewed-on: https://chromium-review.googlesource.com/322695 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>

• src/tests/gl_tests/DepthStencilFormatsTest.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.
  //
  
  #include "test_utils/ANGLETest.h"
  
  using namespace angle;
  
  class DepthStencilFormatsTestBase : public ANGLETest
  {
    protected:
      DepthStencilFormatsTestBase()
      {
          setWindowWidth(128);
          setWindowHeight(128);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
      }
  
      bool checkTexImageFormatSupport(GLenum format, GLenum type)
      {
          EXPECT_GL_NO_ERROR();
  
          GLuint tex = 0;
          glGenTextures(1, &tex);
          glBindTexture(GL_TEXTURE_2D, tex);
          glTexImage2D(GL_TEXTURE_2D, 0, format, 1, 1, 0, format, type, NULL);
          glDeleteTextures(1, &tex);
  
          return (glGetError() == GL_NO_ERROR);
      }
  
      bool checkTexStorageFormatSupport(GLenum internalFormat)
      {
          EXPECT_GL_NO_ERROR();
  
          GLuint tex = 0;
          glGenTextures(1, &tex);
          glBindTexture(GL_TEXTURE_2D, tex);
          glTexStorage2DEXT(GL_TEXTURE_2D, 1, internalFormat, 1, 1);
          glDeleteTextures(1, &tex);
  
          return (glGetError() == GL_NO_ERROR);
      }
  
      bool checkRenderbufferFormatSupport(GLenum internalFormat)
      {
          EXPECT_GL_NO_ERROR();
  
          GLuint rb = 0;
          glGenRenderbuffers(1, &rb);
          glBindRenderbuffer(GL_RENDERBUFFER, rb);
          glRenderbufferStorage(GL_RENDERBUFFER, internalFormat, 1, 1);
          glDeleteRenderbuffers(1, &rb);
  
          return (glGetError() == GL_NO_ERROR);
      }
  
      virtual void SetUp()
      {
          ANGLETest::SetUp();
  
          const std::string vertexShaderSource = SHADER_SOURCE
          (
              precision highp float;
              attribute vec4 position;
              varying vec2 texcoord;
  
              void main()
              {
                  gl_Position = position;
                  texcoord = (position.xy * 0.5) + 0.5;
              }
          );
  
          const std::string fragmentShaderSource = SHADER_SOURCE
          (
              precision highp float;
              uniform sampler2D tex;
              varying vec2 texcoord;
  
              void main()
              {
                  gl_FragColor = texture2D(tex, texcoord);
              }
          );
  
          mProgram = CompileProgram(vertexShaderSource, fragmentShaderSource);
          if (mProgram == 0)
          {
              FAIL() << "shader compilation failed.";
          }
  
          mTextureUniformLocation = glGetUniformLocation(mProgram, "tex");
          EXPECT_NE(-1, mTextureUniformLocation);
  
          glGenTextures(1, &mTexture);
          ASSERT_GL_NO_ERROR();
      }
  
      virtual void TearDown()
      {
          glDeleteProgram(mProgram);
          glDeleteTextures(1, &mTexture);
  
          ANGLETest::TearDown();
      }
  
      GLuint mProgram;
      GLuint mTexture;
      GLint mTextureUniformLocation;
  };
  
  class DepthStencilFormatsTest : public DepthStencilFormatsTestBase
  {};
  
  class DepthStencilFormatsTestES3 : public DepthStencilFormatsTestBase
  {};
  
  TEST_P(DepthStencilFormatsTest, DepthTexture)
  {
      bool shouldHaveTextureSupport = extensionEnabled("GL_ANGLE_depth_texture");
      EXPECT_EQ(shouldHaveTextureSupport, checkTexImageFormatSupport(GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT));
      EXPECT_EQ(shouldHaveTextureSupport, checkTexImageFormatSupport(GL_DEPTH_COMPONENT, GL_UNSIGNED_INT));
  
      if (extensionEnabled("GL_EXT_texture_storage"))
      {
          EXPECT_EQ(shouldHaveTextureSupport, checkTexStorageFormatSupport(GL_DEPTH_COMPONENT16));
          EXPECT_EQ(shouldHaveTextureSupport, checkTexStorageFormatSupport(GL_DEPTH_COMPONENT32_OES));
      }
  }
  
  TEST_P(DepthStencilFormatsTest, PackedDepthStencil)
  {
      // Expected to fail in D3D9 if GL_OES_packed_depth_stencil is not present.
      // Expected to fail in D3D11 if GL_OES_packed_depth_stencil or GL_ANGLE_depth_texture is not present.
  
      bool shouldHaveRenderbufferSupport = extensionEnabled("GL_OES_packed_depth_stencil");
      EXPECT_EQ(shouldHaveRenderbufferSupport, checkRenderbufferFormatSupport(GL_DEPTH24_STENCIL8_OES));
  
      bool shouldHaveTextureSupport = extensionEnabled("GL_OES_packed_depth_stencil") &&
                                      extensionEnabled("GL_ANGLE_depth_texture");
      EXPECT_EQ(shouldHaveTextureSupport, checkTexImageFormatSupport(GL_DEPTH_STENCIL_OES, GL_UNSIGNED_INT_24_8_OES));
  
      if (extensionEnabled("GL_EXT_texture_storage"))
      {
          EXPECT_EQ(shouldHaveTextureSupport, checkTexStorageFormatSupport(GL_DEPTH24_STENCIL8_OES));
      }
  }
  
  TEST_P(DepthStencilFormatsTestES3, DrawWithDepthStencil)
  {
      GLushort data[16];
      for (unsigned int i = 0; i < 16; i++)
      {
          data[i] = std::numeric_limits<GLushort>::max();
      }
      glBindTexture(GL_TEXTURE_2D, mTexture);
      glTexStorage2D(GL_TEXTURE_2D, 1, GL_DEPTH_COMPONENT16, 4, 4);
      glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 4, 4, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, data);
  
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  
      glUseProgram(mProgram);
      glUniform1i(mTextureUniformLocation, 0);
  
      glClear(GL_COLOR_BUFFER_BIT);
      drawQuad(mProgram, "position", 0.5f);
  
      ASSERT_GL_NO_ERROR();
  
      GLubyte pixel[4];
      glReadPixels(0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &pixel);
  
      // Only require the red and alpha channels have the correct values, the depth texture extensions
      // leave the green and blue channels undefined
      ASSERT_NEAR(255, pixel[0], 2.0);
      ASSERT_EQ(255, pixel[3]);
  }
  
  // Use this to select which configurations (e.g. which renderer, which GLES major version) these tests should be run against.
  ANGLE_INSTANTIATE_TEST(DepthStencilFormatsTest,
                         ES2_D3D9(),
                         ES2_D3D11(),
                         ES2_OPENGL(),
                         ES2_OPENGLES());
  ANGLE_INSTANTIATE_TEST(DepthStencilFormatsTestES3, ES3_D3D11(), ES3_OPENGL(), ES3_OPENGLES());