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

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  Commit

• Author : Austin Kinross
  Date : 2015-01-15 16:32:36
  Hash : 62815bf4
  Message : Improve D3D11 FL9_3 zero-LOD workaround (e.g. TextureCubes) D3D11 Feature Level 9_3 can't disable mipmaps on a mipmapped texture, and sample from level zero of it. A previous commit added a workaround for this in ANGLE to Texture2Ds. This commit fixes some minor issues in that commit, and extends the workaround to apply to TextureCubes too. Change-Id: Ic97321af6f8bbf7ad5d96e58655c342db3978a6a Reviewed-on: https://chromium-review.googlesource.com/241944 Tested-by: Austin Kinross <aukinros@microsoft.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>

• tests/angle_tests/CubeMapTextureTest.cpp

• #include "ANGLETest.h"
  
  // Use this to select which configurations (e.g. which renderer, which GLES major version) these tests should be run against.
  ANGLE_TYPED_TEST_CASE(CubeMapTextureTest, ES2_D3D11, ES2_D3D11_FL9_3);
  
  template<typename T>
  class CubeMapTextureTest : public ANGLETest
  {
  protected:
      CubeMapTextureTest() : ANGLETest(T::GetGlesMajorVersion(), T::GetPlatform())
      {
          setWindowWidth(256);
          setWindowHeight(256);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
      }
  
      virtual void SetUp()
      {
          ANGLETest::SetUp();
  
          const std::string vsSource = SHADER_SOURCE
          (
              attribute highp vec4 position;
              void main(void)
              {
                  gl_Position = position;
              }
          );
  
          const std::string fsSource = SHADER_SOURCE
          (
              uniform highp vec4 color;
              void main(void)
              {
                  gl_FragColor = color;
              }
          );
  
          mProgram = CompileProgram(vsSource, fsSource);
          if (mProgram == 0)
          {
              FAIL() << "shader compilation failed.";
          }
  
          mColorLocation = glGetUniformLocation(mProgram, "color");
  
          glUseProgram(mProgram);
  
          glClearColor(0, 0, 0, 0);
          glClearDepthf(0.0);
          glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  
          glEnable(GL_BLEND);
          glDisable(GL_DEPTH_TEST);
  
          ASSERT_GL_NO_ERROR();
      }
  
      virtual void TearDown()
      {
          glDeleteProgram(mProgram);
  
          ANGLETest::TearDown();
      }
  
      GLuint mProgram;
      GLint mColorLocation;
  };
  
  // Verify that rendering to the faces of a cube map consecutively will correctly render to each face.
  TYPED_TEST(CubeMapTextureTest, RenderToFacesConsecutively)
  {
      const GLfloat faceColors[] =
      {
          1.0f, 0.0f, 0.0f, 1.0f,
          0.0f, 1.0f, 0.0f, 1.0f,
          0.0f, 0.0f, 1.0f, 1.0f,
          1.0f, 1.0f, 0.0f, 1.0f,
          1.0f, 0.0f, 1.0f, 1.0f,
          0.0f, 1.0f, 1.0f, 1.0f,
      };
  
      GLuint tex = 0;
      glGenTextures(1, &tex);
      glBindTexture(GL_TEXTURE_CUBE_MAP, tex);
      glTexStorage2DEXT(GL_TEXTURE_CUBE_MAP, 1, GL_RGBA8_OES, 1, 1);
      EXPECT_GL_NO_ERROR();
  
      GLuint fbo = 0;
      glGenFramebuffers(1, &fbo);
      glBindFramebuffer(GL_FRAMEBUFFER, fbo);
      EXPECT_GL_NO_ERROR();
  
      for (size_t face = 0; face < 6; face++)
      {
          glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, tex, 0);
          EXPECT_GL_NO_ERROR();
  
          glUseProgram(mProgram);
  
          const GLfloat *faceColor = faceColors + (face * 4);
          glUniform4f(mColorLocation, faceColor[0], faceColor[1], faceColor[2], faceColor[3]);
  
          drawQuad(mProgram, "position", 0.5f);
          EXPECT_GL_NO_ERROR();
      }
  
      for (size_t face = 0; face < 6; face++)
      {
          glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, tex, 0);
          EXPECT_GL_NO_ERROR();
  
          const GLfloat *faceColor = faceColors + (face * 4);
          EXPECT_PIXEL_EQ(0, 0, faceColor[0] * 255, faceColor[1] * 255, faceColor[2] * 255, faceColor[3] * 255);
          EXPECT_GL_NO_ERROR();
      }
  
      glDeleteFramebuffers(1, &fbo);
      glDeleteTextures(1, &tex);
  
      EXPECT_GL_NO_ERROR();
  }