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

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• Author : Geoff Lang
  Date : 2015-05-20 14:10:46
  Hash : f34d1db9
  Message : Add table entries for almost all the remaining GL texture formats. BUG=angleproject:884 BUG=angleproject:967 Change-Id: I113757dd9e1fae8fe0241a7286be979a90891b53 Reviewed-on: https://chromium-review.googlesource.com/270275 Reviewed-by: Brandon Jones <bajones@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/273135

• src/tests/gl_tests/CubeMapTextureTest.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 CubeMapTextureTest : public ANGLETest
  {
    protected:
      CubeMapTextureTest()
      {
          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.
  TEST_P(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();
  }
  
  // Use this to select which configurations (e.g. which renderer, which GLES major version) these tests should be run against.
  ANGLE_INSTANTIATE_TEST(CubeMapTextureTest, ES2_D3D11(), ES2_D3D11_FL9_3(), ES2_OPENGL(), ES3_OPENGL());