/** Verify rendered polygon anisotropy.
*
* @param gl OpenGL functions wrapper
*
* @return Returns points value. Less points means better anisotropy (smoother strips).
*/
GLuint TextureFilterAnisotropicDrawingTestCase::verifyScene(const glw::Functions& gl)
{
std::vector<GLubyte> pixels;
pixels.resize(32 * 8 * 4);
gl.readPixels(0, 23, 32, 8, GL_RGBA, GL_UNSIGNED_BYTE, pixels.data());
GLU_EXPECT_NO_ERROR(gl.getError(), "glReadPixels");
GLuint sum = 0;
GLubyte last = 0;
GLubyte current = 0;
for (int j = 0; j < 8; ++j)
{
for (int i = 0; i < 32; ++i)
{
current = pixels[(i + j * 32) * 4];
if (i > 0)
sum += deAbs32((int)current - (int)last);
last = current;
}
}
return sum;
}
/** Release texture.
*
* @param gl OpenGL functions wrapper
*/
void TextureFilterAnisotropicDrawingTestCase::releaseTexture(const glw::Functions& gl)
{
if (m_texture)
gl.deleteTextures(1, &m_texture);
m_texture = 0;
}
static std::vector<int> querySampleCounts (const glw::Functions& gl, deUint32 format)
{
int numSampleCounts = 0;
std::vector<int> sampleCounts;
gl.getInternalformativ(GL_RENDERBUFFER, format, GL_NUM_SAMPLE_COUNTS, 1, &numSampleCounts);
if (numSampleCounts > 0)
{
sampleCounts.resize(numSampleCounts);
gl.getInternalformativ(GL_RENDERBUFFER, format, GL_SAMPLES, (glw::GLsizei)sampleCounts.size(), &sampleCounts[0]);
}
GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to query sample counts for format");
return sampleCounts;
}
static std::vector<std::string> getExtensions (const glw::Functions& gl, ApiType apiType)
{
using std::vector;
using std::string;
if (apiType.getProfile() == PROFILE_ES && apiType.getMajorVersion() == 2)
{
TCU_CHECK(gl.getString);
const char* extStr = (const char*)gl.getString(GL_EXTENSIONS);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetString(GL_EXTENSIONS)");
if (extStr)
return de::splitString(extStr);
else
throw tcu::TestError("glGetString(GL_EXTENSIONS) returned null pointer", DE_NULL, __FILE__, __LINE__);
}
else
{
int numExtensions = 0;
vector<string> extensions;
TCU_CHECK(gl.getIntegerv && gl.getStringi);
gl.getIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetIntegerv(GL_NUM_EXTENSIONS)");
if (numExtensions > 0)
{
extensions.resize(numExtensions);
for (int ndx = 0; ndx < numExtensions; ndx++)
{
const char* const ext = (const char*)gl.getStringi(GL_EXTENSIONS, ndx);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetStringi(GL_EXTENSIONS)");
if (ext)
extensions[ndx] = ext;
else
throw tcu::TestError("glGetStringi(GL_EXTENSIONS) returned null pointer", DE_NULL, __FILE__, __LINE__);
}
}
return extensions;
}
}
/** Verify if get* queries for GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT pname works as expected.
*
* @param gl OpenGL functions wrapper
*
* @return Returns true if queries test passed, false otherwise.
*/
bool TextureFilterAnisotropicQueriesTestCase::verifyGet(const glw::Functions& gl)
{
GLboolean bValue;
GLint iValue;
GLfloat fValue;
GLdouble dValue;
gl.getBooleanv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &bValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getBooleanv");
gl.getIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &iValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getIntegerv");
gl.getFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &fValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getFloatv");
if (glu::isContextTypeGLCore(m_context.getRenderContext().getType()))
{
gl.getDoublev(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &dValue);
GLU_EXPECT_NO_ERROR(gl.getError(), "getDoublev");
}
return true;
}
/** Render polygon with anisotropic filtering.
*
* @param gl OpenGL functions wrapper
* @param target Texture target
* @param anisoDegree Degree of anisotropy
*
* @return Returns true if no error occured, false otherwise.
*/
bool TextureFilterAnisotropicDrawingTestCase::drawTexture(const glw::Functions& gl, GLenum target, GLfloat anisoDegree)
{
const GLfloat vertices2[] = { -1.0f, 0.0f, -0.5f, 0.0f, 0.0f, -4.0f, 4.0f, -2.0f, 0.0f, 1.0f,
1.0f, 0.0f, -0.5f, 1.0f, 0.0f, -2.0f, 4.0f, -2.0f, 1.0f, 1.0f };
const GLfloat vertices3[] = { -1.0f, 0.0f, -0.5f, 0.0f, 0.0f, 0.0f, -4.0f, 4.0f, -2.0f, 0.0f, 1.0f, 0.0f,
1.0f, 0.0f, -0.5f, 1.0f, 0.0f, 0.0f, -2.0f, 4.0f, -2.0f, 1.0f, 1.0f, 0.0f };
// Projection values.
const GLfloat projectionMatrix[] = { 0.5f, 0.0f, 0.0f, 0.0f, 0.0f, 0.5f, 0.0f, 0.0f,
0.0f, 0.0f, -2.5f / 1.5f, -2.0f / 1.5f, 0.0f, 0.0f, -1.0f, 0.0f };
gl.viewport(0, 0, 32, 32);
std::string vertexShader = m_vertex;
std::string fragmentShader = m_fragment;
std::string texCoordType;
std::string samplerType;
TextureFilterAnisotropicUtils::generateTokens(target, texCoordType, samplerType);
TextureFilterAnisotropicUtils::replaceToken("<TEXCOORD_TYPE>", texCoordType.c_str(), vertexShader);
TextureFilterAnisotropicUtils::replaceToken("<TEXCOORD_TYPE>", texCoordType.c_str(), fragmentShader);
TextureFilterAnisotropicUtils::replaceToken("<SAMPLER_TYPE>", samplerType.c_str(), vertexShader);
TextureFilterAnisotropicUtils::replaceToken("<SAMPLER_TYPE>", samplerType.c_str(), fragmentShader);
if (glu::isContextTypeGLCore(m_context.getRenderContext().getType()))
{
TextureFilterAnisotropicUtils::replaceToken("<VERSION>", "130", vertexShader);
TextureFilterAnisotropicUtils::replaceToken("<VERSION>", "130", fragmentShader);
}
else
{
TextureFilterAnisotropicUtils::replaceToken("<VERSION>", "300 es", vertexShader);
TextureFilterAnisotropicUtils::replaceToken("<VERSION>", "300 es", fragmentShader);
}
ProgramSources sources = makeVtxFragSources(vertexShader, fragmentShader);
ShaderProgram program(gl, sources);
if (!program.isOk())
{
m_testCtx.getLog() << tcu::TestLog::Message << "Shader build failed.\n"
<< "Vertex: " << program.getShaderInfo(SHADERTYPE_VERTEX).infoLog << "\n"
<< vertexShader << "\n"
<< "Fragment: " << program.getShaderInfo(SHADERTYPE_FRAGMENT).infoLog << "\n"
<< fragmentShader << "\n"
<< "Program: " << program.getProgramInfo().infoLog << tcu::TestLog::EndMessage;
return false;
}
GLuint vao;
gl.genVertexArrays(1, &vao);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenVertexArrays");
gl.bindVertexArray(vao);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindVertexArray");
GLuint vbo;
gl.genBuffers(1, &vbo);
GLU_EXPECT_NO_ERROR(gl.getError(), "glGenBuffers");
gl.bindBuffer(GL_ARRAY_BUFFER, vbo);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer");
std::vector<GLfloat> vboData;
vboData.resize(24);
GLuint texCoordDim;
if (texCoordType == "vec2")
{
texCoordDim = 2;
deMemcpy((void*)vboData.data(), (void*)vertices2, sizeof(vertices2));
}
else
{
texCoordDim = 3;
deMemcpy((void*)vboData.data(), (void*)vertices3, sizeof(vertices3));
}
gl.bufferData(GL_ARRAY_BUFFER, vboData.size() * sizeof(GLfloat), (GLvoid*)vboData.data(), GL_DYNAMIC_DRAW);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBufferData");
gl.useProgram(program.getProgram());
GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram");
GLuint matrixLocation = gl.getUniformLocation(program.getProgram(), "projectionMatrix");
GLuint texLocation = gl.getUniformLocation(program.getProgram(), "tex");
gl.activeTexture(GL_TEXTURE0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glActiveTexture");
gl.bindTexture(target, m_texture);
GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture");
gl.uniformMatrix4fv(matrixLocation, 1, GL_FALSE, projectionMatrix);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniformMatrix4fv");
gl.uniform1i(texLocation, 0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i");
gl.texParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, anisoDegree);
GLU_EXPECT_NO_ERROR(gl.getError(), "texParameterfv");
gl.clearColor(0.0f, 0.0f, 0.0f, 1.0f);
GLU_EXPECT_NO_ERROR(gl.getError(), "glClearColor");
gl.clear(GL_COLOR_BUFFER_BIT);
GLU_EXPECT_NO_ERROR(gl.getError(), "glClear");
gl.enableVertexAttribArray(0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray");
gl.enableVertexAttribArray(1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray");
GLint attrLocationVertex = gl.getAttribLocation(program.getProgram(), "vertex");
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation");
GLint attrLocationInTexCoord = gl.getAttribLocation(program.getProgram(), "inTexCoord");
GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation");
GLuint strideSize = (3 + texCoordDim) * sizeof(GLfloat);
gl.vertexAttribPointer(attrLocationVertex, 3, GL_FLOAT, GL_FALSE, strideSize, DE_NULL);
GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer");
gl.vertexAttribPointer(attrLocationInTexCoord, texCoordDim, GL_FLOAT, GL_FALSE, strideSize,
(GLvoid*)(3 * sizeof(GLfloat)));
GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer");
gl.drawArrays(GL_TRIANGLE_STRIP, 0, 4);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDrawArray");
gl.disableVertexAttribArray(0);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDisableVertexAttribArray");
gl.disableVertexAttribArray(1);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDisableVertexAttribArray");
if (vbo)
{
gl.deleteBuffers(1, &vbo);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteBuffers");
}
if (vao)
{
gl.deleteVertexArrays(1, &vao);
GLU_EXPECT_NO_ERROR(gl.getError(), "glDeleteVertexArrays");
}
return true;
}
/** 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;
}