xref: /aosp_15_r20/external/deqp/modules/gles2/performance/es2pRedundantStateChangeTests.cpp (revision 35238bce31c2a825756842865a792f8cf7f89930)

/*-------------------------------------------------------------------------
 * drawElements Quality Program OpenGL ES 2.0 Module
 * -------------------------------------------------
 *
 * Copyright 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *//*!
 * \file
 * \brief Redundant state change performance tests.
 *//*--------------------------------------------------------------------*/

#include "es2pRedundantStateChangeTests.hpp"
#include "glsStateChangePerfTestCases.hpp"
#include "gluShaderProgram.hpp"
#include "glwFunctions.hpp"
#include "glwEnums.hpp"

namespace deqp
{
namespace gles2
{
namespace Performance
{

using namespace glw; // GL types

namespace
{

enum
{
    VIEWPORT_WIDTH  = 24,
    VIEWPORT_HEIGHT = 24
};

class RedundantStateChangeCase : public gls::StateChangePerformanceCase
{
public:
    RedundantStateChangeCase(Context &context, int drawCallCount, int triangleCount, bool drawArrays,
                             bool useIndexBuffer, const char *name, const char *description);
    ~RedundantStateChangeCase(void);

protected:
    virtual void renderTest(const glw::Functions &gl);
    virtual void renderReference(const glw::Functions &gl);
    virtual void changeState(const glw::Functions &gl) = 0;
};

RedundantStateChangeCase::RedundantStateChangeCase(Context &context, int drawCallCount, int triangleCount,
                                                   bool drawArrays, bool useIndexBuffer, const char *name,
                                                   const char *description)
    : gls::StateChangePerformanceCase(context.getTestContext(), context.getRenderContext(), name, description,
                                      (useIndexBuffer ? DRAWTYPE_INDEXED_BUFFER :
                                       drawArrays     ? DRAWTYPE_NOT_INDEXED :
                                                        DRAWTYPE_INDEXED_USER_PTR),
                                      drawCallCount, triangleCount)
{
    DE_ASSERT(!useIndexBuffer || !drawArrays);
}

RedundantStateChangeCase::~RedundantStateChangeCase(void)
{
}

void RedundantStateChangeCase::renderTest(const glw::Functions &gl)
{
    for (int callNdx = 0; callNdx < m_callCount; callNdx++)
    {
        changeState(gl);
        callDraw(gl);
    }
}

void RedundantStateChangeCase::renderReference(const glw::Functions &gl)
{
    changeState(gl);

    for (int callNdx = 0; callNdx < m_callCount; callNdx++)
        callDraw(gl);
}

} // namespace

RedundantStateChangeTests::RedundantStateChangeTests(Context &context)
    : TestCaseGroup(context, "redundant_state_change_draw",
                    "Test performance with redundant sate changes between rendering.")
{
}

RedundantStateChangeTests::~RedundantStateChangeTests(void)
{
}

#define MACRO_BLOCK(...) __VA_ARGS__

#define ADD_TESTCASE(NAME, DESC, DRAWARRAYS, INDEXBUFFER, INIT_FUNC, CHANGE_FUNC)                                     \
    do                                                                                                                \
    {                                                                                                                 \
        class RedundantStateChangeCase_##NAME : public RedundantStateChangeCase                                       \
        {                                                                                                             \
        public:                                                                                                       \
            RedundantStateChangeCase_##NAME(Context &context, int drawCallCount, int triangleCount, const char *name, \
                                            const char *description)                                                  \
                : RedundantStateChangeCase(context, drawCallCount, triangleCount, (DRAWARRAYS), (INDEXBUFFER), name,  \
                                           description)                                                               \
            {                                                                                                         \
            }                                                                                                         \
            virtual void setupInitialState(const glw::Functions &gl)                                                  \
            {                                                                                                         \
                INIT_FUNC                                                                                             \
            }                                                                                                         \
            virtual void changeState(const glw::Functions &gl)                                                        \
            {                                                                                                         \
                CHANGE_FUNC                                                                                           \
            }                                                                                                         \
        };                                                                                                            \
        manySmallCallsGroup->addChild(new RedundantStateChangeCase_##NAME(m_context, 1000, 2, #NAME, (DESC)));        \
        fewBigCallsGroup->addChild(new RedundantStateChangeCase_##NAME(m_context, 10, 200, #NAME, (DESC)));           \
    } while (0);

void RedundantStateChangeTests::init(void)
{
    tcu::TestCaseGroup *const manySmallCallsGroup =
        new tcu::TestCaseGroup(m_testCtx, "many_small_calls", "1000 calls, 2 triangles in each");
    tcu::TestCaseGroup *const fewBigCallsGroup =
        new tcu::TestCaseGroup(m_testCtx, "few_big_calls", "10 calls, 200 triangles in each");

    addChild(manySmallCallsGroup);
    addChild(fewBigCallsGroup);

    ADD_TESTCASE(blend, "Enable/Disable blending.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.enable(GL_BLEND); }))

    ADD_TESTCASE(depth_test, "Enable/Disable depth test.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");

                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");

                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.depthFunc(GL_LEQUAL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glDepthFunc()");
                 }),
                 MACRO_BLOCK({ gl.enable(GL_DEPTH_TEST); }))

    ADD_TESTCASE(stencil_test, "Enable/Disable stencil test.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.stencilFunc(GL_LEQUAL, 0, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glStencilFunc()");

                     gl.stencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glStencilOp()");

                     gl.clearStencil(0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glClearStencil()");
                     gl.clear(GL_STENCIL_BUFFER_BIT);

                     GLU_EXPECT_NO_ERROR(gl.getError(), "glClear()");
                 }),
                 MACRO_BLOCK({ gl.enable(GL_STENCIL_TEST); }))

    ADD_TESTCASE(scissor_test, "Enable/Disable scissor test.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.scissor(2, 3, 12, 13);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glScissor()");
                 }),
                 MACRO_BLOCK({ gl.enable(GL_SCISSOR_TEST); }))

    ADD_TESTCASE(dither, "Enable/Disable dithering.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.enable(GL_DITHER); }))

    ADD_TESTCASE(culling, "Enable/Disable culling.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.frontFace(GL_CW);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glFrontFace()");

                     gl.cullFace(GL_FRONT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glCullFace()");
                 }),
                 MACRO_BLOCK({ gl.enable(GL_CULL_FACE); }))

    ADD_TESTCASE(depth_func, "Change depth func.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_DEPTH_TEST);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");
                 }),
                 MACRO_BLOCK({ gl.depthFunc(GL_GEQUAL); }))

    ADD_TESTCASE(depth_mask, "Toggle depth mask.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_DEPTH_TEST);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");

                     gl.depthFunc(GL_LEQUAL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glDepthFunc()");
                 }),
                 MACRO_BLOCK({ gl.depthMask(GL_FALSE); }))

    ADD_TESTCASE(depth_rangef, "Change depth range.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.depthRangef(0.0f, 1.0f); }))

    ADD_TESTCASE(blend_equation, "Change blend equation.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_BLEND);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");
                 }),
                 MACRO_BLOCK({ gl.blendEquation(GL_FUNC_SUBTRACT); }))

    ADD_TESTCASE(blend_func, "Change blend function.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_BLEND);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");
                 }),
                 MACRO_BLOCK({ gl.blendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); }))

    ADD_TESTCASE(polygon_offset, "Change polygon offset.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_POLYGON_OFFSET_FILL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");
                 }),
                 MACRO_BLOCK({ gl.polygonOffset(0.0f, 0.0f); }))

    ADD_TESTCASE(sample_coverage, "Sample coverage.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.sampleCoverage(0.25f, GL_TRUE); }))

    ADD_TESTCASE(viewport, "Change viewport.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.viewport(10, 11, 5, 6); }))

    ADD_TESTCASE(scissor, "Change scissor box.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_SCISSOR_TEST);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");
                 }),
                 MACRO_BLOCK({ gl.scissor(17, 13, 5, 8); }))

    ADD_TESTCASE(color_mask, "Change color mask.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.colorMask(GL_TRUE, GL_FALSE, GL_TRUE, GL_FALSE); }))

    ADD_TESTCASE(cull_face, "Change culling mode.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_CULL_FACE);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");
                 }),
                 MACRO_BLOCK({ gl.cullFace(GL_FRONT); }))

    ADD_TESTCASE(front_face, "Change front face.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_CULL_FACE);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");
                 }),
                 MACRO_BLOCK({ gl.frontFace(GL_CCW); }))

    ADD_TESTCASE(stencil_mask, "Change stencil mask.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_STENCIL_TEST);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");

                     gl.stencilFunc(GL_LEQUAL, 0, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glStencilFunc()");

                     gl.stencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glStencilOp()");

                     gl.clearStencil(0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glClearStencil()");
                     gl.clear(GL_STENCIL_BUFFER_BIT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glClear()");
                 }),
                 MACRO_BLOCK({ gl.stencilMask(0xDD); }))

    ADD_TESTCASE(stencil_func, "Change stencil func.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_STENCIL_TEST);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");

                     gl.stencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glStencilOp()");
                     gl.clearStencil(0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glClearStencil()");
                     gl.clear(GL_STENCIL_BUFFER_BIT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glClear()");
                 }),
                 MACRO_BLOCK({ gl.stencilFunc(GL_LEQUAL, 0, 0xFF); }))

    ADD_TESTCASE(stencil_op, "Change stencil op.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_STENCIL_TEST);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");

                     gl.stencilFunc(GL_LEQUAL, 0, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glStencilFunc()");

                     gl.clearStencil(0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glClearStencil()");

                     gl.clear(GL_STENCIL_BUFFER_BIT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glClear()");
                 }),
                 MACRO_BLOCK({ gl.stencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE); }))

    ADD_TESTCASE(bind_array_buffer, "Change array buffer and refresh vertex attrib pointer.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.bindAttribLocation(m_programs[0]->getProgram(), 0, "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindAttribLocation()");
                     gl.linkProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glLinkProgram()");

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");

                     gl.enableVertexAttribArray(0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     gl.vertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                 }))

    ADD_TESTCASE(element_array_buffer, "Change element array buffer.", false, true, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireIndexBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.bindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_indexBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                 }),
                 MACRO_BLOCK({ gl.bindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_indexBuffers[0]); }))

    ADD_TESTCASE(bind_texture, "Change texture binding.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.bindTexture(GL_TEXTURE_2D, m_textures[0]); }))

    ADD_TESTCASE(use_program, "Change used program.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");
                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.useProgram(m_programs[0]->getProgram()); }))

    ADD_TESTCASE(tex_parameter_min_filter, "Change texture parameter min filter.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); }))

    ADD_TESTCASE(tex_parameter_mag_filter, "Change texture parameter mag filter.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); }))

    ADD_TESTCASE(tex_parameter_wrap, "Change texture parameter wrap filter.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");
                 }),
                 MACRO_BLOCK({ gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); }))

    ADD_TESTCASE(bind_framebuffer, "Change framebuffer.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requireFramebuffers(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.bindFramebuffer(GL_FRAMEBUFFER, m_framebuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindFramebuffer()");
                 }),
                 MACRO_BLOCK({ gl.bindFramebuffer(GL_FRAMEBUFFER, m_framebuffers[0]); }))

    ADD_TESTCASE(blend_color, "Change blend color.", true, false, MACRO_BLOCK({
                     requireCoordBuffers(1);
                     requireTextures(1);
                     requirePrograms(1);

                     gl.useProgram(m_programs[0]->getProgram());
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUseProgram()");
                     GLint coordLoc = gl.getAttribLocation(m_programs[0]->getProgram(), "a_coord");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetAttribLocation()");

                     gl.enableVertexAttribArray(coordLoc);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnableVertexAttribArray()");
                     gl.bindBuffer(GL_ARRAY_BUFFER, m_coordBuffers[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindBuffer()");
                     gl.vertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, NULL);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glVertexAttribPointer()");

                     GLint samplerLoc = gl.getUniformLocation(m_programs[0]->getProgram(), "u_sampler");
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glGetUniformLocation()");

                     gl.bindTexture(GL_TEXTURE_2D, m_textures[0]);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBindTexture()");

                     gl.uniform1i(samplerLoc, 0);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glUniform1i()");

                     gl.viewport(0, 0, VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glViewport()");

                     gl.enable(GL_BLEND);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glEnable()");

                     gl.blendFunc(GL_CONSTANT_COLOR, GL_CONSTANT_COLOR);
                     GLU_EXPECT_NO_ERROR(gl.getError(), "glBlendFunc()");
                 }),
                 MACRO_BLOCK({ gl.blendColor(0.75f, 0.75f, 0.75f, 0.75f); }))
}

} // namespace Performance
} // namespace gles2
} // namespace deqp