blob: 073183490ce93e58e726519ef384848fb3031d76 [file] [log] [blame]
//
// 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.
//
// ClipPlaneTest.cpp: Tests basic usage of user clip planes.
#include "test_utils/ANGLETest.h"
#include "test_utils/gl_raii.h"
#include "util/random_utils.h"
#include <stdint.h>
using namespace angle;
class ClipPlaneTest : public ANGLETest
{
protected:
ClipPlaneTest()
{
setWindowWidth(32);
setWindowHeight(32);
setConfigRedBits(8);
setConfigGreenBits(8);
setConfigBlueBits(8);
setConfigAlphaBits(8);
setConfigDepthBits(24);
}
};
// Checks that disable / enable works as expected.
TEST_P(ClipPlaneTest, InitialState)
{
GLint planeCount = 0;
glGetIntegerv(GL_MAX_CLIP_PLANES, &planeCount);
EXPECT_GL_NO_ERROR();
EXPECT_GE(planeCount, 1); // spec minimum
GLfloat clipPlane[4] = {};
for (int i = 0; i < planeCount; i++)
{
GLenum plane = GL_CLIP_PLANE0 + i;
EXPECT_GL_FALSE(glIsEnabled(plane));
EXPECT_GL_NO_ERROR();
glGetClipPlanef(plane, clipPlane);
EXPECT_GL_NO_ERROR();
EXPECT_EQ(0.0f, clipPlane[0]);
EXPECT_EQ(0.0f, clipPlane[1]);
EXPECT_EQ(0.0f, clipPlane[2]);
EXPECT_EQ(0.0f, clipPlane[3]);
}
}
// Negative test for invalid clip planes.
TEST_P(ClipPlaneTest, Negative)
{
GLint planeCount = 0;
glGetIntegerv(GL_MAX_CLIP_PLANES, &planeCount);
EXPECT_GL_NO_ERROR();
glClipPlanef(GL_CLIP_PLANE0 + planeCount, nullptr);
EXPECT_GL_ERROR(GL_INVALID_ENUM);
glClipPlanef(GL_CLIP_PLANE0 - 1, nullptr);
EXPECT_GL_ERROR(GL_INVALID_ENUM);
glGetClipPlanef(GL_CLIP_PLANE0 + planeCount, nullptr);
EXPECT_GL_ERROR(GL_INVALID_ENUM);
glGetClipPlanef(GL_CLIP_PLANE0 - 1, nullptr);
EXPECT_GL_ERROR(GL_INVALID_ENUM);
}
// Test for setting clip plane values.
TEST_P(ClipPlaneTest, Set)
{
GLint planeCount = 0;
glGetIntegerv(GL_MAX_CLIP_PLANES, &planeCount);
EXPECT_GL_NO_ERROR();
for (int i = 0; i < planeCount; i++)
{
GLenum plane = GL_CLIP_PLANE0 + i;
EXPECT_GL_FALSE(glIsEnabled(plane));
EXPECT_GL_NO_ERROR();
GLfloat clipPlane[4] = {
i + 0.0f,
i + 1.0f,
i + 2.0f,
i + 3.0f,
};
glClipPlanef(plane, clipPlane);
EXPECT_GL_NO_ERROR();
GLfloat actualClipPlane[4] = {};
glGetClipPlanef(plane, actualClipPlane);
EXPECT_EQ(clipPlane[0], actualClipPlane[0]);
EXPECT_EQ(clipPlane[1], actualClipPlane[1]);
EXPECT_EQ(clipPlane[2], actualClipPlane[2]);
EXPECT_EQ(clipPlane[3], actualClipPlane[3]);
glEnable(plane);
EXPECT_GL_NO_ERROR();
EXPECT_GL_TRUE(glIsEnabled(plane));
}
}
ANGLE_INSTANTIATE_TEST(ClipPlaneTest, ES1_D3D11(), ES1_OPENGL(), ES1_OPENGLES(), ES1_VULKAN());