/** Generate texture and set filtering parameters.
*
* @param gl OpenGL functions wrapper
* @param target Texture target
* @param internalFormat Texture internal format
*/
void TextureFilterAnisotropicDrawingTestCase::generateTexture(const glw::Functions& gl, GLenum target)
{
gl.genTextures(1, &m_texture);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenTextures");
gl.bindTexture(target, m_texture);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture");
gl.texParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri");
gl.texParameteri(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri");
gl.texParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri");
gl.texParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri");
gl.texParameteri(target, GL_TEXTURE_MAX_LEVEL, 1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glTexParameteri");
}
/** Verify if texParameter*, getTexParameter* queries for GL_TEXTURE_MAX_ANISOTROPY_EXT pname works as expected.
*
* @param gl OpenGL functions wrapper
*
* @return Returns true if queries test passed, false otherwise.
*/
bool TextureFilterAnisotropicQueriesTestCase::verifyTexParameters(const glw::Functions& gl)
{
GLint iValue;
gl.getTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &iValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getTexParameteriv");
// Verify initial integer value which should be equal to 1
if (iValue != 1)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "GetTexParameteriv failed. Expected value: 1, Queried value: " << iValue
<< tcu::TestLog::EndMessage;
return false;
}
GLfloat fValue;
gl.getTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &fValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getTexParameterfv");
// Verify initial float value which should be equal to 1.0f
if (fValue != 1.0f)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "GetTexParameterfv failed. Expected value: 1.0, Queried value: " << iValue
<< tcu::TestLog::EndMessage;
return false;
}
// Set custom integer value and verify it
iValue = 2;
gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, iValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "texParameteri");
gl.getTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &iValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getTexParameteriv");
if (iValue != 2)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "texParameteri failed. Expected value: 2, Queried value: " << iValue
<< tcu::TestLog::EndMessage;
return false;
}
// Set custom float value and verify it
fValue = 1.5f;
gl.texParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, fValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "texParameterf");
gl.getTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &fValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getTexParameterfv");
if (fValue != 1.5f)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "texParameterf failed. Expected value: 1.5, Queried value: " << fValue
<< tcu::TestLog::EndMessage;
return false;
}
// Set custom integer value and verify it
iValue = 1;
gl.texParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &iValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "texParameteriv");
gl.getTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &iValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getTexParameteriv");
if (iValue != 1)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "texParameteriv failed. Expected value: 1, Queried value: " << iValue
<< tcu::TestLog::EndMessage;
return false;
}
// Set custom float value and verify it
fValue = 2.0f;
gl.texParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &fValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "texParameterfv");
gl.getTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &fValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getTexParameterfv");
if (fValue != 2.0f)
{
m_testCtx.getLog() << tcu::TestLog::Message
<< "texParameterfv failed. Expected value: 2.0, Queried value: " << fValue
<< tcu::TestLog::EndMessage;
return false;
}
// Set texture filter anisotropic to 0.9f and check if INVALID_VALUE error is generated
fValue = 0.9f;
gl.texParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, &fValue);
GLint error = gl.getError();
if (error != GL_INVALID_VALUE)
{
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "texParameterfv failed for values less then 1.0f. Expected INVALID_VALUE error. Generated error: "
<< glu::getErrorName(error) << tcu::TestLog::EndMessage;
return false;
}
return true;
}
