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

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• Hash : e2509a39
  Author :
  Date : 2016-02-01T14:09:05
  

  D3D11: Fix basic ReadPixels from 3D attachments.
  
  Use the TextureHelper class to abstractly handle 2D and 3d textures.
  
  Also refactor the Image11 copy methods to be a bit cleaner and not
  use the copy conversion path when unnecessary.
  
  This patch does not yet fix layer attachments - the fix for that will
  come up in a subsequent patch.
  
  BUG=angleproject:1290
  
  Change-Id: If8b7aa8848ca4260e0dde690e7a99e115a97fabb
  Reviewed-on: https://chromium-review.googlesource.com/323442
  Tryjob-Request: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/tests/gl_tests/StateChangeTest.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.
  //
  // StateChangeTest:
  //   Specifically designed for an ANGLE implementation of GL, these tests validate that
  //   ANGLE's dirty bits systems don't get confused by certain sequences of state changes.
  //
  
  #include "test_utils/ANGLETest.h"
  
  using namespace angle;
  
  namespace
  {
  
  class StateChangeTest : public ANGLETest
  {
    protected:
      StateChangeTest() : mFramebuffer(0)
      {
          setWindowWidth(64);
          setWindowHeight(64);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
  
          // Enable the no error extension to avoid syncing the FBO state on validation.
          setNoErrorEnabled(true);
      }
  
      void SetUp() override
      {
          ANGLETest::SetUp();
  
          glGenFramebuffers(1, &mFramebuffer);
  
          mTextures.resize(2, 0);
          glGenTextures(2, mTextures.data());
  
          ASSERT_GL_NO_ERROR();
      }
  
      void TearDown() override
      {
          if (mFramebuffer != 0)
          {
              glDeleteFramebuffers(1, &mFramebuffer);
              mFramebuffer = 0;
          }
  
          if (!mTextures.empty())
          {
              glDeleteTextures(static_cast<GLsizei>(mTextures.size()), mTextures.data());
              mTextures.clear();
          }
  
          ANGLETest::TearDown();
      }
  
      GLuint mFramebuffer;
      std::vector<GLuint> mTextures;
  };
  
  class StateChangeTestES3 : public StateChangeTest
  {
    protected:
      StateChangeTestES3() {}
  };
  
  }  // anonymous namespace
  
  // Ensure that CopyTexImage2D syncs framebuffer changes.
  TEST_P(StateChangeTest, CopyTexImage2DSync)
  {
      if (isAMD() && getPlatformRenderer() == EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE)
      {
          // TODO(geofflang): Fix on Linux AMD drivers (http://anglebug.com/1291)
          std::cout << "Test disabled on AMD OpenGL." << std::endl;
          return;
      }
  
      glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
  
      // Init first texture to red
      glBindTexture(GL_TEXTURE_2D, mTextures[0]);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0);
      glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
      EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);
  
      // Init second texture to green
      glBindTexture(GL_TEXTURE_2D, mTextures[1]);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0);
      glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
      EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255);
  
      // Copy in the red texture to the green one.
      // CopyTexImage should sync the framebuffer attachment change.
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0);
      glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 0, 16, 16, 0);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0);
      EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);
  
      ASSERT_GL_NO_ERROR();
  }
  
  // Ensure that CopyTexSubImage2D syncs framebuffer changes.
  TEST_P(StateChangeTest, CopyTexSubImage2DSync)
  {
      glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
  
      // Init first texture to red
      glBindTexture(GL_TEXTURE_2D, mTextures[0]);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0);
      glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
      EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);
  
      // Init second texture to green
      glBindTexture(GL_TEXTURE_2D, mTextures[1]);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0);
      glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
      EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255);
  
      // Copy in the red texture to the green one.
      // CopyTexImage should sync the framebuffer attachment change.
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0);
      glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, 16, 16);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0);
      EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);
  
      ASSERT_GL_NO_ERROR();
  }
  
  // Ensure that CopyTexSubImage3D syncs framebuffer changes.
  TEST_P(StateChangeTestES3, CopyTexSubImage3DSync)
  {
      glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
  
      // Init first texture to red
      glBindTexture(GL_TEXTURE_3D, mTextures[0]);
      glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTextures[0], 0, 0);
      glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
      EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);
  
      // Init second texture to green
      glBindTexture(GL_TEXTURE_3D, mTextures[1]);
      glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTextures[1], 0, 0);
      glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
      EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255);
  
      // Copy in the red texture to the green one.
      // CopyTexImage should sync the framebuffer attachment change.
      glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTextures[0], 0, 0);
      glCopyTexSubImage3D(GL_TEXTURE_3D, 0, 0, 0, 0, 0, 0, 16, 16);
      glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, mTextures[1], 0, 0);
      EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);
  
      ASSERT_GL_NO_ERROR();
  }
  
  // Ensure that BlitFramebuffer syncs framebuffer changes.
  TEST_P(StateChangeTestES3, BlitFramebufferSync)
  {
      glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
  
      // Init first texture to red
      glBindTexture(GL_TEXTURE_2D, mTextures[0]);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0);
      glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
      EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);
  
      // Init second texture to green
      glBindTexture(GL_TEXTURE_2D, mTextures[1]);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0);
      glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
      EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255);
  
      // Change to the red textures and blit.
      // BlitFramebuffer should sync the framebuffer attachment change.
      glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
      glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0],
                             0);
      glBlitFramebuffer(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT, GL_NEAREST);
      glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
      EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);
  
      ASSERT_GL_NO_ERROR();
  }
  
  // Ensure that ReadBuffer and DrawBuffers sync framebuffer changes.
  TEST_P(StateChangeTestES3, ReadBufferAndDrawBuffersSync)
  {
      glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
  
      // Initialize two FBO attachments
      glBindTexture(GL_TEXTURE_2D, mTextures[0]);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[0], 0);
      glBindTexture(GL_TEXTURE_2D, mTextures[1]);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
      glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, mTextures[1], 0);
  
      // Clear first attachment to red
      GLenum bufs1[] = {GL_COLOR_ATTACHMENT0, GL_NONE};
      glDrawBuffers(2, bufs1);
      glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
  
      // Clear second texture to green
      GLenum bufs2[] = {GL_NONE, GL_COLOR_ATTACHMENT1};
      glDrawBuffers(2, bufs2);
      glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
  
      // Verify first attachment is red and second is green
      glReadBuffer(GL_COLOR_ATTACHMENT1);
      EXPECT_PIXEL_EQ(0, 0, 0, 255, 0, 255);
  
      glReadBuffer(GL_COLOR_ATTACHMENT0);
      EXPECT_PIXEL_EQ(0, 0, 255, 0, 0, 255);
  
      ASSERT_GL_NO_ERROR();
  }
  
  ANGLE_INSTANTIATE_TEST(StateChangeTest, ES2_D3D9(), ES2_D3D11(), ES2_OPENGL());
  ANGLE_INSTANTIATE_TEST(StateChangeTestES3, ES3_D3D11(), ES3_OPENGL());
  

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