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

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• Author : Amy Liu
  Date : 2020-02-21 18:25:54
  Hash : 5bb36cc0
  Message : Passing covgl/covgl Fix the following gles1-API implementation codes and some validation functions: glClearColorx glClearDepthx glDepthRangex glGetFixedv glGetTexParameterxv glLineWidthx glPolygonOffsetx glSampleCoveragex glTexParameterx glTexParameterxv ValidateMaterialCommon ValidateFogx ValidateFogxv ValidatePointSizex ValidateRotatex ValidateTexEnvx ValidateTexEnvxv Bug: angleproject:4281 Change-Id: Ia1d9e53c3ffde2bc77b7ca7eaa0d790e8ca43f10 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2075341 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

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

• //
  // Copyright 2018 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.
  //
  
  // BasicDrawTest.cpp: Tests basic fullscreen quad draw with and without
  // GL_TEXTURE_2D enabled.
  
  #include "test_utils/ANGLETest.h"
  #include "test_utils/gl_raii.h"
  
  #include <vector>
  
  using namespace angle;
  
  class BasicDrawTest : public ANGLETest
  {
    protected:
      BasicDrawTest()
      {
          setWindowWidth(32);
          setWindowHeight(32);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
          setConfigDepthBits(24);
      }
  
      std::vector<float> mPositions = {
          -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f,
      };
  
      void drawRedQuad()
      {
          glColor4f(1.0f, 0.0f, 0.0f, 1.0f);
          EXPECT_GL_NO_ERROR();
          glEnableClientState(GL_VERTEX_ARRAY);
          EXPECT_GL_NO_ERROR();
          glVertexPointer(2, GL_FLOAT, 0, mPositions.data());
          EXPECT_GL_NO_ERROR();
          glDrawArrays(GL_TRIANGLES, 0, 6);
          EXPECT_GL_NO_ERROR();
          EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red);
      }
  };
  
  // Draws a fullscreen quad with a certain color.
  TEST_P(BasicDrawTest, DrawColor)
  {
      drawRedQuad();
  }
  
  // Checks that textures can be enabled or disabled.
  TEST_P(BasicDrawTest, EnableDisableTexture)
  {
      GLuint tex;
      glGenTextures(1, &tex);
      glBindTexture(GL_TEXTURE_2D, tex);
  
      // Green
      GLubyte texture[] = {
          0x00,
          0xff,
          0x00,
      };
  
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, GL_RGB, GL_UNSIGNED_BYTE, texture);
  
      // Texturing is disabled; still red;
      drawRedQuad();
  
      glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
  
      // Texturing enabled; is green (provided modulate w/ white)
      glEnable(GL_TEXTURE_2D);
      EXPECT_GL_NO_ERROR();
      glDrawArrays(GL_TRIANGLES, 0, 6);
      EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green);
  }
  
  // Check that glClearColorx, glClearDepthx, glLineWidthx, glPolygonOffsetx can work.
  TEST_P(BasicDrawTest, DepthTest)
  {
      glClearColorx(0x4000, 0x8000, 0x8000, 0x8000);
      EXPECT_GL_NO_ERROR();
      glClearDepthx(0x8000);
      EXPECT_GL_NO_ERROR();
  
      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
      EXPECT_PIXEL_NEAR(0, 0, 64, 128, 128, 128, 1.0);
  
      // Fail Depth Test and can't draw the red triangle
      std::vector<float> Positions = {-1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 1.0f, 1.0f};
      glEnable(GL_DEPTH_TEST);
  
      glLineWidthx(0x10000);
      EXPECT_GL_NO_ERROR();
      glPolygonOffsetx(0, 0);
      EXPECT_GL_NO_ERROR();
  
      glColor4f(1.0f, 0.0f, 0.0f, 1.0f);
      glEnableClientState(GL_VERTEX_ARRAY);
      EXPECT_GL_NO_ERROR();
      glVertexPointer(3, GL_FLOAT, 0, Positions.data());
      EXPECT_GL_NO_ERROR();
      glDrawArrays(GL_TRIANGLES, 0, 3);
      EXPECT_GL_NO_ERROR();
      EXPECT_PIXEL_NEAR(0, 0, 64, 128, 128, 128, 1.0);
  
      glDisable(GL_DEPTH_TEST);
      EXPECT_GL_NO_ERROR();
      glDrawArrays(GL_TRIANGLES, 0, 3);
      EXPECT_GL_NO_ERROR();
      EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red);
  }
  
  // Check that depth range can be set by glDepthRangex.
  TEST_P(BasicDrawTest, SetDepthRangex)
  {
      glDepthRangex(0x8000, 0x10000);
      EXPECT_GL_NO_ERROR();
  
      GLfixed depth_range[2];
      glGetFixedv(GL_DEPTH_RANGE, depth_range);
      EXPECT_GL_NO_ERROR();
      EXPECT_EQ(0x8000, depth_range[0]);
      EXPECT_EQ(0x10000, depth_range[1]);
  }
  
  // Check that sample coverage parameters can be set by glSampleCoveragex.
  TEST_P(BasicDrawTest, SetSampleCoveragex)
  {
      GLfixed isSampleCoverage;
      GLfixed samplecoveragevalue;
      GLfixed samplecoverageinvert;
  
      glEnable(GL_SAMPLE_COVERAGE);
      EXPECT_GL_NO_ERROR();
  
      glGetFixedv(GL_SAMPLE_COVERAGE, &isSampleCoverage);
      EXPECT_GL_NO_ERROR();
      EXPECT_EQ(0x10000, isSampleCoverage);
  
      glSampleCoveragex(0x8000, true);
      EXPECT_GL_NO_ERROR();
  
      glGetFixedv(GL_SAMPLE_COVERAGE_VALUE, &samplecoveragevalue);
      EXPECT_GL_NO_ERROR();
      EXPECT_EQ(0x8000, samplecoveragevalue);
  
      glGetFixedv(GL_SAMPLE_COVERAGE_INVERT, &samplecoverageinvert);
      EXPECT_GL_NO_ERROR();
      EXPECT_EQ(0x10000, samplecoverageinvert);
  }
  
  ANGLE_INSTANTIATE_TEST_ES1(BasicDrawTest);