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

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• Hash : 1a01b4b3
  Author :
  Date : 2019-11-11T16:41:07
  

  Refactor end2end test macros
  
  This is a foundational CL to enabling the end2end tests on swiftshader.
  
  Refactored infrastructure with new ANGLE_INSTANTIATE_TEST_ES*
  macros that will run tests over all various combinations of all
  platforms for different ES versions.
  
  Just skipping failing tests initially to get the refactor landed.
  
  Bug: angleproject:4081
  Bug: angleproject:4092
  Change-Id: I017f6c3267179e49b6ae08cc7488096b423dcdb5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1904635
  Commit-Queue: Tobin Ehlis <tobine@google.com>
  Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
  

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• src/tests/gl_tests/LineLoopTest.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"
  
  #include "test_utils/gl_raii.h"
  
  using namespace angle;
  
  class LineLoopTest : public ANGLETest
  {
    protected:
      LineLoopTest()
      {
          setWindowWidth(256);
          setWindowHeight(256);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
      }
  
      void testSetUp() override
      {
          mProgram = CompileProgram(essl1_shaders::vs::Simple(), essl1_shaders::fs::UniformColor());
          if (mProgram == 0)
          {
              FAIL() << "shader compilation failed.";
          }
  
          mPositionLocation = glGetAttribLocation(mProgram, essl1_shaders::PositionAttrib());
          mColorLocation    = glGetUniformLocation(mProgram, essl1_shaders::ColorUniform());
  
          glBlendFunc(GL_ONE, GL_ONE);
          glEnable(GL_BLEND);
          glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
  
          ASSERT_GL_NO_ERROR();
      }
  
      void testTearDown() override { glDeleteProgram(mProgram); }
  
      void checkPixels()
      {
          std::vector<GLubyte> pixels(getWindowWidth() * getWindowHeight() * 4);
          glReadPixels(0, 0, getWindowWidth(), getWindowHeight(), GL_RGBA, GL_UNSIGNED_BYTE,
                       &pixels[0]);
  
          ASSERT_GL_NO_ERROR();
  
          for (int y = 0; y < getWindowHeight(); y++)
          {
              for (int x = 0; x < getWindowWidth(); x++)
              {
                  const GLubyte *pixel = &pixels[0] + ((y * getWindowWidth() + x) * 4);
  
                  EXPECT_EQ(pixel[0], 0);
                  EXPECT_EQ(pixel[1], pixel[2]);
                  ASSERT_EQ(pixel[3], 255);
              }
          }
      }
  
      void runTest(GLenum indexType, GLuint indexBuffer, const void *indexPtr)
      {
          glClear(GL_COLOR_BUFFER_BIT);
  
          static const GLfloat loopPositions[] = {0.0f,  0.0f, 0.0f, 0.0f, 0.0f, 0.0f,  0.0f,
                                                  0.0f,  0.0f, 0.0f, 0.0f, 0.0f, -0.5f, -0.5f,
                                                  -0.5f, 0.5f, 0.5f, 0.5f, 0.5f, -0.5f};
  
          static const GLfloat stripPositions[] = {-0.5f, -0.5f, -0.5f, 0.5f,
                                                   0.5f,  0.5f,  0.5f,  -0.5f};
          static const GLubyte stripIndices[]   = {1, 0, 3, 2, 1};
  
          glUseProgram(mProgram);
          glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer);
          glEnableVertexAttribArray(mPositionLocation);
          glVertexAttribPointer(mPositionLocation, 2, GL_FLOAT, GL_FALSE, 0, loopPositions);
          glUniform4f(mColorLocation, 0.0f, 0.0f, 1.0f, 1.0f);
          glDrawElements(GL_LINE_LOOP, 4, indexType, indexPtr);
  
          glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
          glVertexAttribPointer(mPositionLocation, 2, GL_FLOAT, GL_FALSE, 0, stripPositions);
          glUniform4f(mColorLocation, 0, 1, 0, 1);
          glDrawElements(GL_LINE_STRIP, 5, GL_UNSIGNED_BYTE, stripIndices);
  
          checkPixels();
      }
  
      GLuint mProgram;
      GLint mPositionLocation;
      GLint mColorLocation;
  };
  
  TEST_P(LineLoopTest, LineLoopUByteIndices)
  {
      // Disable D3D11 SDK Layers warnings checks, see ANGLE issue 667 for details
      // On Win7, the D3D SDK Layers emits a false warning for these tests.
      // This doesn't occur on Windows 10 (Version 1511) though.
      ignoreD3D11SDKLayersWarnings();
  
      static const GLubyte indices[] = {0, 7, 6, 9, 8, 0};
      runTest(GL_UNSIGNED_BYTE, 0, indices + 1);
  }
  
  TEST_P(LineLoopTest, LineLoopUShortIndices)
  {
      // Disable D3D11 SDK Layers warnings checks, see ANGLE issue 667 for details
      ignoreD3D11SDKLayersWarnings();
  
      static const GLushort indices[] = {0, 7, 6, 9, 8, 0};
      runTest(GL_UNSIGNED_SHORT, 0, indices + 1);
  }
  
  TEST_P(LineLoopTest, LineLoopUIntIndices)
  {
      if (!IsGLExtensionEnabled("GL_OES_element_index_uint"))
      {
          return;
      }
  
      // Disable D3D11 SDK Layers warnings checks, see ANGLE issue 667 for details
      ignoreD3D11SDKLayersWarnings();
  
      static const GLuint indices[] = {0, 7, 6, 9, 8, 0};
      runTest(GL_UNSIGNED_INT, 0, indices + 1);
  }
  
  TEST_P(LineLoopTest, LineLoopUByteIndexBuffer)
  {
      // Disable D3D11 SDK Layers warnings checks, see ANGLE issue 667 for details
      ignoreD3D11SDKLayersWarnings();
  
      static const GLubyte indices[] = {0, 7, 6, 9, 8, 0};
  
      GLuint buf;
      glGenBuffers(1, &buf);
      glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, buf);
      glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
  
      runTest(GL_UNSIGNED_BYTE, buf, reinterpret_cast<const void *>(sizeof(GLubyte)));
  
      glDeleteBuffers(1, &buf);
  }
  
  TEST_P(LineLoopTest, LineLoopUShortIndexBuffer)
  {
      // Disable D3D11 SDK Layers warnings checks, see ANGLE issue 667 for details
      ignoreD3D11SDKLayersWarnings();
  
      static const GLushort indices[] = {0, 7, 6, 9, 8, 0};
  
      GLuint buf;
      glGenBuffers(1, &buf);
      glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, buf);
      glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
  
      runTest(GL_UNSIGNED_SHORT, buf, reinterpret_cast<const void *>(sizeof(GLushort)));
  
      glDeleteBuffers(1, &buf);
  }
  
  TEST_P(LineLoopTest, LineLoopUIntIndexBuffer)
  {
      if (!IsGLExtensionEnabled("GL_OES_element_index_uint"))
      {
          return;
      }
  
      // Disable D3D11 SDK Layers warnings checks, see ANGLE issue 667 for details
      ignoreD3D11SDKLayersWarnings();
  
      static const GLuint indices[] = {0, 7, 6, 9, 8, 0};
  
      GLuint buf;
      glGenBuffers(1, &buf);
      glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, buf);
      glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
  
      runTest(GL_UNSIGNED_INT, buf, reinterpret_cast<const void *>(sizeof(GLuint)));
  
      glDeleteBuffers(1, &buf);
  }
  
  // Tests an edge case with a very large line loop element count.
  // Disabled because it is slow and triggers an internal error.
  TEST_P(LineLoopTest, DISABLED_DrawArraysWithLargeCount)
  {
      constexpr char kVS[] = "void main() { gl_Position = vec4(0); }";
      constexpr char kFS[] = "void main() { gl_FragColor = vec4(0, 1, 0, 1); }";
  
      ANGLE_GL_PROGRAM(program, kVS, kFS);
      glUseProgram(program);
      glDrawArrays(GL_LINE_LOOP, 0, 0x3FFFFFFE);
      EXPECT_GL_ERROR(GL_OUT_OF_MEMORY);
  
      glDrawArrays(GL_LINE_LOOP, 0, 0x1FFFFFFE);
      EXPECT_GL_NO_ERROR();
  }
  
  class LineLoopIndirectTest : public LineLoopTest
  {
    protected:
      void runTest(GLenum indexType, const void *indices, GLuint indicesSize, GLuint firstIndex)
      {
          struct DrawCommand
          {
              GLuint count;
              GLuint primCount;
              GLuint firstIndex;
              GLint baseVertex;
              GLuint reservedMustBeZero;
          };
  
          glClear(GL_COLOR_BUFFER_BIT);
  
          static const GLfloat loopPositions[] = {0.0f,  0.0f, 0.0f, 0.0f, 0.0f, 0.0f,  0.0f,
                                                  0.0f,  0.0f, 0.0f, 0.0f, 0.0f, -0.5f, -0.5f,
                                                  -0.5f, 0.5f, 0.5f, 0.5f, 0.5f, -0.5f};
  
          static const GLfloat stripPositions[] = {-0.5f, -0.5f, -0.5f, 0.5f,
                                                   0.5f,  0.5f,  0.5f,  -0.5f};
          static const GLubyte stripIndices[]   = {1, 0, 3, 2, 1};
  
          glUseProgram(mProgram);
  
          GLuint vertexArray = 0;
          glGenVertexArrays(1, &vertexArray);
          glBindVertexArray(vertexArray);
  
          ASSERT_GL_NO_ERROR();
  
          GLuint vertBuffer = 0;
          glGenBuffers(1, &vertBuffer);
          glBindBuffer(GL_ARRAY_BUFFER, vertBuffer);
          glBufferData(GL_ARRAY_BUFFER, sizeof(loopPositions), loopPositions, GL_STATIC_DRAW);
          glEnableVertexAttribArray(mPositionLocation);
          glVertexAttribPointer(mPositionLocation, 2, GL_FLOAT, GL_FALSE, 0, nullptr);
          glUniform4f(mColorLocation, 0.0f, 0.0f, 1.0f, 1.0f);
  
          ASSERT_GL_NO_ERROR();
  
          GLuint buf;
          glGenBuffers(1, &buf);
          glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, buf);
          glBufferData(GL_ELEMENT_ARRAY_BUFFER, indicesSize, indices, GL_STATIC_DRAW);
  
          DrawCommand cmdBuffer = {};
          cmdBuffer.count       = 4;
          cmdBuffer.firstIndex  = firstIndex;
          cmdBuffer.primCount   = 1;
          GLuint indirectBuf    = 0;
          glGenBuffers(1, &indirectBuf);
          glBindBuffer(GL_DRAW_INDIRECT_BUFFER, indirectBuf);
          glBufferData(GL_DRAW_INDIRECT_BUFFER, sizeof(DrawCommand), &cmdBuffer, GL_STATIC_DRAW);
  
          ASSERT_GL_NO_ERROR();
  
          glDrawElementsIndirect(GL_LINE_LOOP, indexType, nullptr);
          ASSERT_GL_NO_ERROR();
  
          glBindBuffer(GL_DRAW_INDIRECT_BUFFER, 0);
          glDeleteBuffers(1, &indirectBuf);
  
          glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
          glDeleteBuffers(1, &buf);
  
          glBindVertexArray(0);
          glDeleteVertexArrays(1, &vertexArray);
  
          glBindBuffer(GL_ARRAY_BUFFER, 0);
          glDeleteBuffers(1, &vertBuffer);
  
          glEnableVertexAttribArray(mPositionLocation);
          glVertexAttribPointer(mPositionLocation, 2, GL_FLOAT, GL_FALSE, 0, stripPositions);
          glUniform4f(mColorLocation, 0, 1, 0, 1);
          glDrawElements(GL_LINE_STRIP, 5, GL_UNSIGNED_BYTE, stripIndices);
  
          checkPixels();
      }
  };
  
  TEST_P(LineLoopIndirectTest, UByteIndexIndirectBuffer)
  {
  
      // Disable D3D11 SDK Layers warnings checks, see ANGLE issue 667 for details
      ignoreD3D11SDKLayersWarnings();
  
      static const GLubyte indices[] = {0, 7, 6, 9, 8, 0};
  
      // Start at index 1.
      runTest(GL_UNSIGNED_BYTE, reinterpret_cast<const void *>(indices), sizeof(indices), 1);
  }
  
  TEST_P(LineLoopIndirectTest, UShortIndexIndirectBuffer)
  {
  
      // Disable D3D11 SDK Layers warnings checks, see ANGLE issue 667 for details
      ignoreD3D11SDKLayersWarnings();
  
      static const GLushort indices[] = {0, 7, 6, 9, 8, 0};
  
      // Start at index 1.
      runTest(GL_UNSIGNED_SHORT, reinterpret_cast<const void *>(indices), sizeof(indices), 1);
  }
  
  // Use this to select which configurations (e.g. which renderer, which GLES major version) these
  // tests should be run against.
  ANGLE_INSTANTIATE_TEST_ES2(LineLoopTest);
  
  ANGLE_INSTANTIATE_TEST_ES31(LineLoopIndirectTest);
  

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