kc3-lang/angle/src/tests/gl_tests/gles1/FramebufferObjectTest.cpp

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• Author : Mohan Maiya
  Date : 2021-02-11 12:52:39
  Hash : 2b15062b
  Message : Allow more formats as texture attachments in GLES 1 This change allows all formats in the GLES 1.1 spec, table 3.4 to be used as a texture attachment. Also normalize values passed into glColorPointer if the format is of type GL_UNSIGNED_BYTE. These changes are needed for the android app, Kick the Buddy to render correctly. Bug: angleproject:5599 Tests: *DrawTextureTest.ColorArrayDifferentTypes* *FramebufferObjectTest.TextureObjectDifferentFormats* Change-Id: Ie9d27fc24d94106651262cf9b2080dd3f05af1c5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2690920 Commit-Queue: Mohan Maiya <m.maiya@samsung.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>

• src/tests/gl_tests/gles1/FramebufferObjectTest.cpp

• //
  // Copyright 2020 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.
  //
  
  // FramebufferObjectTest.cpp: Tests basic usage of OES_framebuffer_object extension.
  
  #include "test_utils/ANGLETest.h"
  #include "test_utils/gl_raii.h"
  
  using namespace angle;
  
  class FramebufferObjectTest : public ANGLETest
  {
    protected:
      FramebufferObjectTest()
      {
          setWindowWidth(32);
          setWindowHeight(32);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
          setConfigDepthBits(24);
      }
  
      void testSetUp() override
      {
          mTexture.reset(new GLTexture());
          glEnable(GL_TEXTURE_2D);
          glBindTexture(GL_TEXTURE_2D, mTexture->get());
      }
  
      void testTearDown() override { mTexture.reset(); }
  
      std::unique_ptr<GLTexture> mTexture;
  };
  
  // Checks that framebuffer object can be used without GL errors.
  TEST_P(FramebufferObjectTest, FramebufferObject)
  {
      GLuint fboId;
      GLint params;
  
      glGenFramebuffersOES(1, &fboId);
      EXPECT_GL_NO_ERROR();
      glIsFramebufferOES(fboId);
      EXPECT_GL_NO_ERROR();
      glBindFramebufferOES(GL_FRAMEBUFFER, fboId);
      EXPECT_GL_NO_ERROR();
  
      glCheckFramebufferStatusOES(GL_FRAMEBUFFER);
      EXPECT_GL_NO_ERROR();
      glGetFramebufferAttachmentParameterivOES(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
                                               GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &params);
      EXPECT_GL_NO_ERROR();
  
      glBindFramebuffer(GL_FRAMEBUFFER, 0);
      glDeleteFramebuffersOES(1, &fboId);
      EXPECT_GL_NO_ERROR();
  }
  
  // Checks that texture object can be bound for framebuffer object.
  TEST_P(FramebufferObjectTest, TextureObject)
  {
      GLuint fboId;
  
      glGenFramebuffers(1, &fboId);
      glBindFramebuffer(GL_FRAMEBUFFER, fboId);
      glFramebufferTexture2DOES(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTexture->get(),
                                0);
      EXPECT_GL_NO_ERROR();
  
      glBindFramebuffer(GL_FRAMEBUFFER, 0);
      glDeleteFramebuffers(1, &fboId);
  }
  
  // Checks different formats for a texture object bound to a framebuffer object.
  TEST_P(FramebufferObjectTest, TextureObjectDifferentFormats)
  {
      // http://anglebug.com/5642
      ANGLE_SKIP_TEST_IF(IsOSX() && IsOpenGL());
  
      GLuint fboId;
  
      glGenFramebuffersOES(1, &fboId);
      glBindFramebufferOES(GL_FRAMEBUFFER_OES, fboId);
  
      using FormatInfo                                  = std::array<GLenum, 3>;
      constexpr std::array<FormatInfo, 5> kFormatArrays = {
          {{GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE},
           {GL_RGB, GL_RGB, GL_UNSIGNED_BYTE},
           {GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4},
           {GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1},
           {GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5}}};
  
      for (const FormatInfo &formatInfo : kFormatArrays)
      {
          glTexImage2D(GL_TEXTURE_2D, 0, formatInfo[0], 1, 1, 0, formatInfo[1], formatInfo[2],
                       &GLColor::green);
          glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D,
                                    mTexture->get(), 0);
          ASSERT_EQ(glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES),
                    (GLenum)GL_FRAMEBUFFER_COMPLETE_OES);
      }
  
      EXPECT_GL_NO_ERROR();
  
      glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
      glDeleteFramebuffersOES(1, &fboId);
  }
  
  // Checks that renderbuffer object can be used and can be bound for framebuffer object.
  TEST_P(FramebufferObjectTest, RenderbufferObject)
  {
      GLuint fboId;
      GLuint rboId;
      GLint params;
  
      glGenFramebuffers(1, &fboId);
      glBindFramebuffer(GL_FRAMEBUFFER, fboId);
  
      glGenRenderbuffersOES(1, &rboId);
      EXPECT_GL_NO_ERROR();
      glIsRenderbufferOES(rboId);
      EXPECT_GL_NO_ERROR();
      glBindRenderbufferOES(GL_RENDERBUFFER, rboId);
      EXPECT_GL_NO_ERROR();
      glRenderbufferStorageOES(GL_RENDERBUFFER, GL_RGBA8, 32, 32);
      EXPECT_GL_NO_ERROR();
  
      glFramebufferRenderbufferOES(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rboId);
      EXPECT_GL_NO_ERROR();
      glGetRenderbufferParameterivOES(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &params);
      EXPECT_GL_NO_ERROR();
  
      glBindFramebuffer(GL_FRAMEBUFFER, 0);
      glDeleteFramebuffers(1, &fboId);
      glDeleteRenderbuffersOES(1, &rboId);
      EXPECT_GL_NO_ERROR();
  }
  
  // Checks that generateMipmap can be called without GL errors.
  TEST_P(FramebufferObjectTest, GenerateMipmap)
  {
      constexpr uint32_t kSize = 32;
      std::vector<unsigned char> pixelData(kSize * kSize * 4, 0);
  
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixelData.data());
  
      glGenerateMipmapOES(GL_TEXTURE_2D);
      EXPECT_GL_NO_ERROR();
  }
  
  ANGLE_INSTANTIATE_TEST_ES1(FramebufferObjectTest);