kc3-lang/angle/tests/angle_tests/TextureTest.cpp

Branch : - branch - main - tag -

• Show log

  Commit

• Author : Geoff Lang
  Date : 2014-04-28 10:58:16
  Hash : c41e42d4
  Message : Early-out of *TexSubImage* calls when the width, height or depth is zero. BUG=angle:622 Change-Id: I74ef5b684151895b24a15fa8f799a633174622c2 Reviewed-on: https://chromium-review.googlesource.com/197270 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• tests/angle_tests/TextureTest.cpp

• #include "ANGLETest.h"
  
  class TextureTest : public ANGLETest
  {
  protected:
      TextureTest()
      {
          setWindowWidth(128);
          setWindowHeight(128);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
      }
  
      virtual void SetUp()
      {
          ANGLETest::SetUp();
          glGenTextures(1, &mTexture);
  
          glBindTexture(GL_TEXTURE_2D, mTexture);
          glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
          EXPECT_GL_NO_ERROR();
  
          ASSERT_GL_NO_ERROR();
  
          const std::string vertexShaderSource = SHADER_SOURCE
          (
              precision highp float;
              attribute vec4 position;
              varying vec2 texcoord;
  
              void main()
              {
                  gl_Position = position;
                  texcoord = (position.xy * 0.5) + 0.5;
              }
          );
  
          const std::string fragmentShaderSource = SHADER_SOURCE
          (
              precision highp float;
              uniform sampler2D tex;
              varying vec2 texcoord;
  
              void main()
              {
                  gl_FragColor = texture2D(tex, texcoord);
              }
          );
  
          mProgram = compileProgram(vertexShaderSource, fragmentShaderSource);
          if (mProgram == 0)
          {
              FAIL() << "shader compilation failed.";
          }
  
          mTextureUniformLocation = glGetUniformLocation(mProgram, "tex");
      }
  
      virtual void TearDown()
      {
          glDeleteTextures(1, &mTexture);
          glDeleteProgram(mProgram);
  
          ANGLETest::TearDown();
      }
  
      GLuint mTexture;
  
      GLuint mProgram;
      GLint mTextureUniformLocation;
  };
  
  TEST_F(TextureTest, negative_api_subimage)
  {
      glBindTexture(GL_TEXTURE_2D, mTexture);
      EXPECT_GL_ERROR(GL_NO_ERROR);
  
      const GLubyte *pixels[20] = { 0 };
      glTexSubImage2D(GL_TEXTURE_2D, 0, 1, 1, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
      EXPECT_GL_ERROR(GL_INVALID_VALUE);
  }
  
  TEST_F(TextureTest, zero_sized_uploads)
  {
      glBindTexture(GL_TEXTURE_2D, mTexture);
      EXPECT_GL_ERROR(GL_NO_ERROR);
  
      // Use the texture first to make sure it's in video memory
      glUseProgram(mProgram);
      glUniform1i(mTextureUniformLocation, 0);
      drawQuad(mProgram, "position", 0.5f);
  
      const GLubyte *pixel[4] = { 0 };
  
      glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
      EXPECT_GL_NO_ERROR();
  
      glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
      EXPECT_GL_NO_ERROR();
  
      glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
      EXPECT_GL_NO_ERROR();
  }