/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL ES 3.0 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 Clipping tests.
*//*--------------------------------------------------------------------*/
#include "es3fClippingTests.hpp"
#include "tcuRenderTarget.hpp"
#include "tcuTextureUtil.hpp"
#include "tcuImageCompare.hpp"
#include "tcuVectorUtil.hpp"
#include "deStringUtil.hpp"
#include "deRandom.hpp"
#include "sglrReferenceContext.hpp"
#include "sglrGLContext.hpp"
#include "glwEnums.hpp"
#include "glwDefs.hpp"
#include "glwFunctions.hpp"
using namespace glw; // GLint and other GL types
namespace deqp
{
namespace gles3
{
namespace Functional
{
namespace
{
using tcu::PixelBufferAccess;
using tcu::ConstPixelBufferAccess;
using tcu::TestLog;
static const tcu::Vec4 MASK_COLOR_OK = tcu::Vec4(0.0f, 0.1f, 0.0f, 1.0f);
static const tcu::Vec4 MASK_COLOR_DEV = tcu::Vec4(0.8f, 0.5f, 0.0f, 1.0f);
static const tcu::Vec4 MASK_COLOR_FAIL = tcu::Vec4(1.0f, 0.0f, 1.0f, 1.0f);
const int TEST_CANVAS_SIZE = 200;
const rr::WindowRectangle VIEWPORT_WHOLE (0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
const rr::WindowRectangle VIEWPORT_CENTER (TEST_CANVAS_SIZE/4, TEST_CANVAS_SIZE/4, TEST_CANVAS_SIZE/2, TEST_CANVAS_SIZE/2);
const rr::WindowRectangle VIEWPORT_CORNER (TEST_CANVAS_SIZE/2, TEST_CANVAS_SIZE/2, TEST_CANVAS_SIZE/2, TEST_CANVAS_SIZE/2);
const char* shaderSourceVertex = "#version 300 es\n"
"in highp vec4 a_position;\n"
"in highp vec4 a_color;\n"
"in highp float a_pointSize;\n"
"out highp vec4 varFragColor;\n"
"void main (void)\n"
"{\n"
" gl_Position = a_position;\n"
" gl_PointSize = a_pointSize;\n"
" varFragColor = a_color;\n"
"}\n";
const char* shaderSourceFragment = "#version 300 es\n"
"layout(location = 0) out mediump vec4 fragColor;"
"in highp vec4 varFragColor;\n"
"void main (void)\n"
"{\n"
" fragColor = varFragColor;\n"
"}\n";
inline bool isBlack (const tcu::IVec4& a)
{
return a.x() == 0 && a.y() == 0 && a.z() == 0;
}
inline bool isHalfFilled (const tcu::IVec4& a)
{
const tcu::IVec4 halfFilled (127, 0, 0, 0);
const tcu::IVec4 threshold (20, 256, 256, 256);
return tcu::boolAll(tcu::lessThanEqual(tcu::abs(a - halfFilled), threshold));
}
inline bool isLessThanHalfFilled (const tcu::IVec4& a)
{
const int halfFilled = 127;
const int threshold = 20;
return a.x() + threshold < halfFilled;
}
inline bool compareBlackNonBlackPixels (const tcu::IVec4& a, const tcu::IVec4& b)
{
return isBlack(a) == isBlack(b);
}
inline bool compareColoredPixels (const tcu::IVec4& a, const tcu::IVec4& b)
{
const bool aIsBlack = isBlack(a);
const bool bIsBlack = isBlack(b);
const tcu::IVec4 threshold(20, 20, 20, 0);
if (aIsBlack && bIsBlack)
return true;
if (aIsBlack != bIsBlack)
return false;
return tcu::boolAll(tcu::lessThanEqual(tcu::abs(a - b), threshold));
}
void blitImageOnBlackSurface(const ConstPixelBufferAccess& src, const PixelBufferAccess& dst)
{
const int height = src.getHeight();
const int width = src.getWidth();
for (int y = 0; y < height; y++)
for (int x = 0; x < width; x++)
{
const tcu::IVec4 cSrc = src.getPixelInt(x, y);
const tcu::IVec4 cDst = tcu::IVec4(cSrc.x(), cSrc.y(), cSrc.z(), 255);
dst.setPixel(cDst, x, y);
}
}
/*--------------------------------------------------------------------*//*!
* \brief Pixelwise comparison of two images.
* \note copied & modified from glsRasterizationTests
*
* Kernel radius defines maximum allowed distance. If radius is 0, only
* perfect match is allowed. Radius of 1 gives a 3x3 kernel. Pixels are
* equal if pixelCmp returns true..
*
* Return values: -1 = Perfect match
* 0 = Deviation within kernel
* >0 = Number of faulty pixels
*//*--------------------------------------------------------------------*/
inline int compareImages (tcu::TestLog& log, const ConstPixelBufferAccess& test, const ConstPixelBufferAccess& ref, const PixelBufferAccess& diffMask, int kernelRadius, bool (*pixelCmp)(const tcu::IVec4& a, const tcu::IVec4& b))
{
const int height = test.getHeight();
const int width = test.getWidth();
int deviatingPixels = 0;
int faultyPixels = 0;
int compareFailed = -1;
tcu::clear(diffMask, MASK_COLOR_OK);
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
const tcu::IVec4 cRef = ref.getPixelInt(x, y);
const tcu::IVec4 cTest = test.getPixelInt(x, y);
// Pixelwise match, no deviation or fault
if ((*pixelCmp)(cRef, cTest))
continue;
// Deviation
{
const int radius = kernelRadius;
bool foundRef = false;
bool foundTest = false;
// edges are considered a "deviation" too. The suitable pixel could be "behind" the edge
if (y < radius || x < radius || y + radius >= height || x + radius >= width)
{
foundRef = true;
foundTest = true;
}
else
{
// find ref
for (int kY = y - radius; kY <= y + radius; kY++)
for (int kX = x - radius; kX <= x + radius; kX++)
{
if ((*pixelCmp)(cRef, test.getPixelInt(kX, kY)))
{
foundRef = true;
break;
}
}
// find result
for (int kY = y - radius; kY <= y + radius; kY++)
for (int kX = x - radius; kX <= x + radius; kX++)
{
if ((*pixelCmp)(cTest, ref.getPixelInt(kX, kY)))
{
foundTest = true;
break;
}
}
}
// A pixel is deviating if the reference color is found inside the kernel and (~= every pixel reference draws must be drawn by the gl too)
// the result color is found in the reference image inside the kernel (~= every pixel gl draws must be drawn by the reference too)
if (foundRef && foundTest)
{
diffMask.setPixel(MASK_COLOR_DEV, x, y);
if (compareFailed == -1)
compareFailed = 0;
deviatingPixels++;
continue;
}
}
diffMask.setPixel(MASK_COLOR_FAIL, x, y);
faultyPixels++; // The pixel is faulty if the color is not found
compareFailed = 1;
}
}
log << TestLog::Message << deviatingPixels << " deviating pixel(s) found." << TestLog::EndMessage;
log << TestLog::Message << faultyPixels << " faulty pixel(s) found." << TestLog::EndMessage;
return (compareFailed == 1 ? faultyPixels : compareFailed);
}
/*--------------------------------------------------------------------*//*!
* \brief Pixelwise comparison of two images.
*
* Kernel radius defines maximum allowed distance. If radius is 0, only
* perfect match is allowed. Radius of 1 gives a 3x3 kernel. Pixels are
* equal if they both are black, or both are non-black.
*
* Return values: -1 = Perfect match
* 0 = Deviation within kernel
* >0 = Number of faulty pixels
*//*--------------------------------------------------------------------*/
int compareBlackNonBlackImages (tcu::TestLog& log, const ConstPixelBufferAccess& test, const ConstPixelBufferAccess& ref, const PixelBufferAccess& diffMask, int kernelRadius)
{
return compareImages(log, test, ref, diffMask, kernelRadius, compareBlackNonBlackPixels);
}
/*--------------------------------------------------------------------*//*!
* \brief Pixelwise comparison of two images.
*
* Kernel radius defines maximum allowed distance. If radius is 0, only
* perfect match is allowed. Radius of 1 gives a 3x3 kernel. Pixels are
* equal if they both are black, or both are non-black with color values
* close to each other.
*
* Return values: -1 = Perfect match
* 0 = Deviation within kernel
* >0 = Number of faulty pixels
*//*--------------------------------------------------------------------*/
int compareColoredImages (tcu::TestLog& log, const ConstPixelBufferAccess& test, const ConstPixelBufferAccess& ref, const PixelBufferAccess& diffMask, int kernelRadius)
{
return compareImages(log, test, ref, diffMask, kernelRadius, compareColoredPixels);
}
/*--------------------------------------------------------------------*//*!
* \brief Overdraw check verification
*
* Check that image does not have at any point a
* pixel with red component value > 0.5
*
* Return values: false = area not filled, or leaking
*//*--------------------------------------------------------------------*/
bool checkHalfFilledImageOverdraw (tcu::TestLog& log, const tcu::RenderTarget& m_renderTarget, const ConstPixelBufferAccess& image, const PixelBufferAccess& output)
{
const int height = image.getHeight();
const int width = image.getWidth();
bool faulty = false;
tcu::clear(output, MASK_COLOR_OK);
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
const tcu::IVec4 cTest = image.getPixelInt(x, y);
const bool pixelValid = isBlack(cTest) || isHalfFilled(cTest) || (m_renderTarget.getNumSamples() > 1 && isLessThanHalfFilled(cTest));
if (!pixelValid)
{
output.setPixel(MASK_COLOR_FAIL, x, y);
faulty = true;
}
}
}
if (faulty)
log << TestLog::Message << "Faulty pixel(s) found." << TestLog::EndMessage;
return !faulty;
}
void checkPointSize (const glw::Functions& gl, float pointSize)
{
GLfloat pointSizeRange[2] = {0,0};
gl.getFloatv(GL_ALIASED_POINT_SIZE_RANGE, pointSizeRange);
if (pointSizeRange[1] < pointSize)
throw tcu::NotSupportedError("Maximum point size is too low for this test");
}
void checkLineWidth (const glw::Functions& gl, float lineWidth)
{
GLfloat lineWidthRange[2] = {0,0};
gl.getFloatv(GL_ALIASED_LINE_WIDTH_RANGE, lineWidthRange);
if (lineWidthRange[1] < lineWidth)
throw tcu::NotSupportedError("Maximum line width is too low for this test");
}
tcu::Vec3 IVec3ToVec3 (const tcu::IVec3& v)
{
return tcu::Vec3((float)v.x(), (float)v.y(), (float)v.z());
}
bool pointOnTriangle (const tcu::IVec3& p, const tcu::IVec3& t0, const tcu::IVec3& t1, const tcu::IVec3& t2)
{
// Must be on the plane
const tcu::IVec3 n = tcu::cross(t1 - t0, t2 - t0);
const tcu::IVec3 d = (p - t0);
if (tcu::dot(n, d))
return false;
// Must be within the triangle area
if (deSign32(tcu::dot(n, tcu::cross(t1 - t0, p - t0))) == deSign32(tcu::dot(n, tcu::cross(t2 - t0, p - t0))))
return false;
if (deSign32(tcu::dot(n, tcu::cross(t2 - t1, p - t1))) == deSign32(tcu::dot(n, tcu::cross(t0 - t1, p - t1))))
return false;
if (deSign32(tcu::dot(n, tcu::cross(t0 - t2, p - t2))) == deSign32(tcu::dot(n, tcu::cross(t1 - t2, p - t2))))
return false;
return true;
}
bool pointsOnLine (const tcu::IVec2& t0, const tcu::IVec2& t1, const tcu::IVec2& t2)
{
return (t1 - t0).x() * (t2 - t0).y() - (t2 - t0).x() * (t1 - t0).y() == 0;
}
// returns true for cases where polygon is (almost) along xz or yz planes (normal.z < 0.1)
// \note[jarkko] Doesn't have to be accurate, just to detect some obviously bad cases
bool twoPointClippedTriangleInvisible(const tcu::Vec3& p, const tcu::IVec3& dir1, const tcu::IVec3& dir2)
{
// fixed-point-like coords
const deInt64 fixedScale = 64;
const deInt64 farValue = 1024;
const tcu::Vector<deInt64, 3> d1 = tcu::Vector<deInt64, 3>(dir1.x(), dir1.y(), dir1.z());
const tcu::Vector<deInt64, 3> d2 = tcu::Vector<deInt64, 3>(dir2.x(), dir2.y(), dir2.z());
const tcu::Vector<deInt64, 3> pfixed = tcu::Vector<deInt64, 3>(deFloorFloatToInt32(p.x() * fixedScale), deFloorFloatToInt32(p.y() * fixedScale), deFloorFloatToInt32(p.z() * fixedScale));
const tcu::Vector<deInt64, 3> normalDir = tcu::cross(d1*farValue - pfixed, d2*farValue - pfixed);
const deInt64 normalLen2 = tcu::lengthSquared(normalDir);
return (normalDir.z() * normalDir.z() - normalLen2/100) < 0;
}
std::string genClippingPointInfoString(const tcu::Vec4& p)
{
std::ostringstream msg;
if (p.x() < -p.w()) msg << "\t(-X clip)";
if (p.x() > p.w()) msg << "\t(+X clip)";
if (p.y() < -p.w()) msg << "\t(-Y clip)";
if (p.y() > p.w()) msg << "\t(+Y clip)";
if (p.z() < -p.w()) msg << "\t(-Z clip)";
if (p.z() > p.w()) msg << "\t(+Z clip)";
return msg.str();
}
std::string genColorString(const tcu::Vec4& p)
{
const tcu::Vec4 white (1.0f, 1.0f, 1.0f, 1.0f);
const tcu::Vec4 red (1.0f, 0.0f, 0.0f, 1.0f);
const tcu::Vec4 yellow (1.0f, 1.0f, 0.0f, 1.0f);
const tcu::Vec4 blue (0.0f, 0.0f, 1.0f, 1.0f);
if (p == white) return "(white)";
if (p == red) return "(red)";
if (p == yellow) return "(yellow)";
if (p == blue) return "(blue)";
return "";
}
class PositionColorShader : public sglr::ShaderProgram
{
public:
enum
{
VARYINGLOC_COLOR = 0
};
PositionColorShader (void);
void shadeVertices (const rr::VertexAttrib* inputs, rr::VertexPacket* const* packets, const int numPackets) const;
void shadeFragments (rr::FragmentPacket* packets, const int numPackets, const rr::FragmentShadingContext& context) const;
};
PositionColorShader::PositionColorShader (void)
: sglr::ShaderProgram(sglr::pdec::ShaderProgramDeclaration()
<< sglr::pdec::VertexAttribute("a_position", rr::GENERICVECTYPE_FLOAT)
<< sglr::pdec::VertexAttribute("a_color", rr::GENERICVECTYPE_FLOAT)
<< sglr::pdec::VertexAttribute("a_pointSize", rr::GENERICVECTYPE_FLOAT)
<< sglr::pdec::VertexToFragmentVarying(rr::GENERICVECTYPE_FLOAT)
<< sglr::pdec::FragmentOutput(rr::GENERICVECTYPE_FLOAT)
<< sglr::pdec::VertexSource(shaderSourceVertex)
<< sglr::pdec::FragmentSource(shaderSourceFragment))
{
}
void PositionColorShader::shadeVertices (const rr::VertexAttrib* inputs, rr::VertexPacket* const* packets, const int numPackets) const
{
for (int packetNdx = 0; packetNdx < numPackets; ++packetNdx)
{
const int positionAttrLoc = 0;
const int colorAttrLoc = 1;
const int pointSizeAttrLoc = 2;
rr::VertexPacket& packet = *packets[packetNdx];
// Transform to position
packet.position = rr::readVertexAttribFloat(inputs[positionAttrLoc], packet.instanceNdx, packet.vertexNdx);
// output point size
packet.pointSize = rr::readVertexAttribFloat(inputs[pointSizeAttrLoc], packet.instanceNdx, packet.vertexNdx).x();
// Pass color to FS
packet.outputs[VARYINGLOC_COLOR] = rr::readVertexAttribFloat(inputs[colorAttrLoc], packet.instanceNdx, packet.vertexNdx);
}
}
void PositionColorShader::shadeFragments (rr::FragmentPacket* packets, const int numPackets, const rr::FragmentShadingContext& context) const
{
for (int packetNdx = 0; packetNdx < numPackets; ++packetNdx)
{
rr::FragmentPacket& packet = packets[packetNdx];
for (int fragNdx = 0; fragNdx < 4; ++fragNdx)
rr::writeFragmentOutput(context, packetNdx, fragNdx, 0, rr::readVarying<float>(packet, context, VARYINGLOC_COLOR, fragNdx));
}
}
class RenderTestCase : public TestCase
{
public:
RenderTestCase (Context& context, const char* name, const char* description);
virtual void testRender (void) = DE_NULL;
virtual void init (void) { }
IterateResult iterate (void);
};
RenderTestCase::RenderTestCase (Context& context, const char* name, const char* description)
: TestCase (context, name, description)
{
}
RenderTestCase::IterateResult RenderTestCase::iterate (void)
{
const int width = m_context.getRenderTarget().getWidth();
const int height = m_context.getRenderTarget().getHeight();
m_testCtx.getLog() << TestLog::Message << "Render target size: " << width << "x" << height << TestLog::EndMessage;
if (width < TEST_CANVAS_SIZE || height < TEST_CANVAS_SIZE)
throw tcu::NotSupportedError(std::string("Render target size must be at least ") + de::toString(TEST_CANVAS_SIZE) + "x" + de::toString(TEST_CANVAS_SIZE));
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass"); // success by default
testRender();
return STOP;
}
class PointCase : public RenderTestCase
{
public:
PointCase (Context& context, const char* name, const char* description, const tcu::Vec4* pointsBegin, const tcu::Vec4* pointsEnd, float pointSize, const rr::WindowRectangle& viewport);
void init (void);
void testRender (void);
private:
const std::vector<tcu::Vec4> m_points;
const float m_pointSize;
const rr::WindowRectangle m_viewport;
};
PointCase::PointCase (Context& context, const char* name, const char* description, const tcu::Vec4* pointsBegin, const tcu::Vec4* pointsEnd, float pointSize, const rr::WindowRectangle& viewport)
: RenderTestCase(context, name, description)
, m_points (pointsBegin, pointsEnd)
, m_pointSize (pointSize)
, m_viewport (viewport)
{
}
void PointCase::init (void)
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
checkPointSize (gl, m_pointSize);
}
void PointCase::testRender (void)
{
using tcu::TestLog;
const int numSamples = de::max(m_context.getRenderTarget().getNumSamples(), 1);
tcu::TestLog& log = m_testCtx.getLog();
sglr::GLContext glesContext (m_context.getRenderContext(), log, 0, tcu::IVec4(0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE));
sglr::ReferenceContextLimits limits;
sglr::ReferenceContextBuffers buffers (m_context.getRenderTarget().getPixelFormat(), m_context.getRenderTarget().getDepthBits(), 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE, numSamples);
sglr::ReferenceContext refContext (limits, buffers.getColorbuffer(), buffers.getDepthbuffer(), buffers.getStencilbuffer());
PositionColorShader program;
tcu::Surface testSurface (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
tcu::Surface refSurface (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
sglr::Context* contexts[2] = {&glesContext, &refContext};
tcu::Surface* surfaces[2] = {&testSurface, &refSurface};
// log the purpose of the test
log << TestLog::Message << "Viewport: left=" << m_viewport.left << "\tbottom=" << m_viewport.bottom << "\twidth=" << m_viewport.width << "\theight=" << m_viewport.height << TestLog::EndMessage;
log << TestLog::Message << "Rendering points with point size " << m_pointSize << ". Coordinates:" << TestLog::EndMessage;
for (size_t ndx = 0; ndx < m_points.size(); ++ndx)
log << TestLog::Message
<< "\tx=" << m_points[ndx].x()
<< "\ty=" << m_points[ndx].y()
<< "\tz=" << m_points[ndx].z()
<< "\tw=" << m_points[ndx].w()
<< "\t" << genClippingPointInfoString(m_points[ndx])
<< TestLog::EndMessage;
for (int contextNdx = 0; contextNdx < 2; ++contextNdx)
{
sglr::Context& ctx = *contexts[contextNdx];
tcu::Surface& dstSurface = *surfaces[contextNdx];
const deUint32 programId = ctx.createProgram(&program);
const GLint positionLoc = ctx.getAttribLocation(programId, "a_position");
const GLint pointSizeLoc = ctx.getAttribLocation(programId, "a_pointSize");
const GLint colorLoc = ctx.getAttribLocation(programId, "a_color");
ctx.clearColor (0, 0, 0, 1);
ctx.clearDepthf (1.0f);
ctx.clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
ctx.viewport (m_viewport.left, m_viewport.bottom, m_viewport.width, m_viewport.height);
ctx.useProgram (programId);
ctx.enableVertexAttribArray (positionLoc);
ctx.vertexAttribPointer (positionLoc, 4, GL_FLOAT, GL_FALSE, 0, &m_points[0]);
ctx.vertexAttrib1f (pointSizeLoc, m_pointSize);
ctx.vertexAttrib4f (colorLoc, 1.0f, 1.0f, 1.0f, 1.0f);
ctx.drawArrays (GL_POINTS, 0, (glw::GLsizei)m_points.size());
ctx.disableVertexAttribArray (positionLoc);
ctx.useProgram (0);
ctx.deleteProgram (programId);
ctx.finish ();
ctx.readPixels(dstSurface, 0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
}
// do the comparison
{
tcu::Surface diffMask (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
const int kernelRadius = 1;
int faultyPixels;
log << TestLog::Message << "Comparing images... " << TestLog::EndMessage;
log << TestLog::Message << "Deviation within radius of " << kernelRadius << " is allowed." << TestLog::EndMessage;
faultyPixels = compareBlackNonBlackImages(log, testSurface.getAccess(), refSurface.getAccess(), diffMask.getAccess(), kernelRadius);
if (faultyPixels > 0)
{
log << TestLog::ImageSet("Images", "Image comparison")
<< TestLog::Image("TestImage", "Test image", testSurface.getAccess())
<< TestLog::Image("ReferenceImage", "Reference image", refSurface.getAccess())
<< TestLog::Image("DifferenceMask", "Difference mask", diffMask.getAccess())
<< TestLog::EndImageSet
<< tcu::TestLog::Message << "Got " << faultyPixels << " faulty pixel(s)." << tcu::TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got faulty pixels");
}
}
}
class LineRenderTestCase : public RenderTestCase
{
public:
struct ColoredLineData
{
tcu::Vec4 p0;
tcu::Vec4 c0;
tcu::Vec4 p1;
tcu::Vec4 c1;
};
struct ColorlessLineData
{
tcu::Vec4 p0;
tcu::Vec4 p1;
};
LineRenderTestCase (Context& context, const char* name, const char* description, const ColoredLineData* linesBegin, const ColoredLineData* linesEnd, float lineWidth, const rr::WindowRectangle& viewport);
LineRenderTestCase (Context& context, const char* name, const char* description, const ColorlessLineData* linesBegin, const ColorlessLineData* linesEnd, float lineWidth, const rr::WindowRectangle& viewport);
virtual void verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess) = DE_NULL;
void init (void);
void testRender (void);
protected:
const float m_lineWidth;
private:
std::vector<ColoredLineData> convertToColoredLines (const ColorlessLineData* linesBegin, const ColorlessLineData* linesEnd);
const std::vector<ColoredLineData> m_lines;
const rr::WindowRectangle m_viewport;
};
LineRenderTestCase::LineRenderTestCase (Context& context, const char* name, const char* description, const ColoredLineData* linesBegin, const ColoredLineData* linesEnd, float lineWidth, const rr::WindowRectangle& viewport)
: RenderTestCase (context, name, description)
, m_lineWidth (lineWidth)
, m_lines (linesBegin, linesEnd)
, m_viewport (viewport)
{
}
LineRenderTestCase::LineRenderTestCase (Context& context, const char* name, const char* description, const ColorlessLineData* linesBegin, const ColorlessLineData* linesEnd, float lineWidth, const rr::WindowRectangle& viewport)
: RenderTestCase (context, name, description)
, m_lineWidth (lineWidth)
, m_lines (convertToColoredLines(linesBegin, linesEnd))
, m_viewport (viewport)
{
}
void LineRenderTestCase::init (void)
{
const glw::Functions& gl = m_context.getRenderContext().getFunctions();
checkLineWidth (gl, m_lineWidth);
}
void LineRenderTestCase::testRender (void)
{
using tcu::TestLog;
const int numSamples = de::max(m_context.getRenderTarget().getNumSamples(), 1);
const int verticesPerLine = 2;
tcu::TestLog& log = m_testCtx.getLog();
sglr::GLContext glesContext (m_context.getRenderContext(), log, 0, tcu::IVec4(0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE));
sglr::ReferenceContextLimits limits;
sglr::ReferenceContextBuffers buffers (m_context.getRenderTarget().getPixelFormat(), m_context.getRenderTarget().getDepthBits(), 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE, numSamples);
sglr::ReferenceContext refContext (limits, buffers.getColorbuffer(), buffers.getDepthbuffer(), buffers.getStencilbuffer());
PositionColorShader program;
tcu::Surface testSurface (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
tcu::Surface refSurface (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
sglr::Context* contexts[2] = {&glesContext, &refContext};
tcu::Surface* surfaces[2] = {&testSurface, &refSurface};
// log the purpose of the test
log << TestLog::Message << "Viewport: left=" << m_viewport.left << "\tbottom=" << m_viewport.bottom << "\twidth=" << m_viewport.width << "\theight=" << m_viewport.height << TestLog::EndMessage;
log << TestLog::Message << "Rendering lines with line width " << m_lineWidth << ". Coordinates:" << TestLog::EndMessage;
for (size_t ndx = 0; ndx < m_lines.size(); ++ndx)
{
const std::string fromProperties = genClippingPointInfoString(m_lines[ndx].p0);
const std::string toProperties = genClippingPointInfoString(m_lines[ndx].p1);
log << TestLog::Message << "\tfrom (x=" << m_lines[ndx].p0.x() << "\ty=" << m_lines[ndx].p0.y() << "\tz=" << m_lines[ndx].p0.z() << "\tw=" << m_lines[ndx].p0.w() << ")\t" << fromProperties << TestLog::EndMessage;
log << TestLog::Message << "\tto (x=" << m_lines[ndx].p1.x() << "\ty=" << m_lines[ndx].p1.y() << "\tz=" << m_lines[ndx].p1.z() << "\tw=" << m_lines[ndx].p1.w() << ")\t" << toProperties << TestLog::EndMessage;
log << TestLog::Message << TestLog::EndMessage;
}
// render test image
for (int contextNdx = 0; contextNdx < 2; ++contextNdx)
{
sglr::Context& ctx = *contexts[contextNdx];
tcu::Surface& dstSurface = *surfaces[contextNdx];
const deUint32 programId = ctx.createProgram(&program);
const GLint positionLoc = ctx.getAttribLocation(programId, "a_position");
const GLint colorLoc = ctx.getAttribLocation(programId, "a_color");
ctx.clearColor (0, 0, 0, 1);
ctx.clearDepthf (1.0f);
ctx.clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
ctx.viewport (m_viewport.left, m_viewport.bottom, m_viewport.width, m_viewport.height);
ctx.useProgram (programId);
ctx.enableVertexAttribArray (positionLoc);
ctx.enableVertexAttribArray (colorLoc);
ctx.vertexAttribPointer (positionLoc, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat[8]), &m_lines[0].p0);
ctx.vertexAttribPointer (colorLoc, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat[8]), &m_lines[0].c0);
ctx.lineWidth (m_lineWidth);
ctx.drawArrays (GL_LINES, 0, verticesPerLine * (glw::GLsizei)m_lines.size());
ctx.disableVertexAttribArray (positionLoc);
ctx.disableVertexAttribArray (colorLoc);
ctx.useProgram (0);
ctx.deleteProgram (programId);
ctx.finish ();
ctx.readPixels(dstSurface, 0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
}
// compare
verifyImage(testSurface.getAccess(), refSurface.getAccess());
}
std::vector<LineRenderTestCase::ColoredLineData> LineRenderTestCase::convertToColoredLines(const ColorlessLineData* linesBegin, const ColorlessLineData* linesEnd)
{
std::vector<ColoredLineData> ret;
for (const ColorlessLineData* it = linesBegin; it != linesEnd; ++it)
{
ColoredLineData r;
r.p0 = (*it).p0;
r.c0 = tcu::Vec4(1, 1, 1, 1);
r.p1 = (*it).p1;
r.c1 = tcu::Vec4(1, 1, 1, 1);
ret.push_back(r);
}
return ret;
}
class LineCase : public LineRenderTestCase
{
public:
LineCase (Context& context, const char* name, const char* description, const LineRenderTestCase::ColorlessLineData* linesBegin, const LineRenderTestCase::ColorlessLineData* linesEnd, float lineWidth, const rr::WindowRectangle& viewport, int searchKernelSize = 1);
void verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess);
private:
const int m_searchKernelSize;
};
LineCase::LineCase (Context& context, const char* name, const char* description, const LineRenderTestCase::ColorlessLineData* linesBegin, const LineRenderTestCase::ColorlessLineData* linesEnd, float lineWidth, const rr::WindowRectangle& viewport, int searchKernelSize)
: LineRenderTestCase (context, name, description, linesBegin, linesEnd, lineWidth, viewport)
, m_searchKernelSize (searchKernelSize)
{
}
void LineCase::verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess)
{
const int faultyLimit = 6;
int faultyPixels;
const bool isMsaa = m_context.getRenderTarget().getNumSamples() > 1;
tcu::TestLog& log = m_testCtx.getLog();
tcu::Surface diffMask (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
log << TestLog::Message << "Comparing images... " << TestLog::EndMessage;
log << TestLog::Message << "Deviation within radius of " << m_searchKernelSize << " is allowed." << TestLog::EndMessage;
log << TestLog::Message << faultyLimit << " faulty pixels are allowed." << TestLog::EndMessage;
faultyPixels = compareBlackNonBlackImages(log, testImageAccess, referenceImageAccess, diffMask.getAccess(), m_searchKernelSize);
if (faultyPixels > faultyLimit)
{
log << TestLog::ImageSet("Images", "Image comparison")
<< TestLog::Image("TestImage", "Test image", testImageAccess)
<< TestLog::Image("ReferenceImage", "Reference image", referenceImageAccess)
<< TestLog::Image("DifferenceMask", "Difference mask", diffMask.getAccess())
<< TestLog::EndImageSet
<< tcu::TestLog::Message << "Got " << faultyPixels << " faulty pixel(s)." << tcu::TestLog::EndMessage;
if (m_lineWidth != 1.0f && isMsaa)
{
log << TestLog::Message << "Wide line support is optional, reporting compatibility warning." << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Wide line clipping failed");
}
else
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got faulty pixels");
}
}
class ColoredLineCase : public LineRenderTestCase
{
public:
ColoredLineCase (Context& context, const char* name, const char* description, const LineRenderTestCase::ColoredLineData* linesBegin, const LineRenderTestCase::ColoredLineData* linesEnd, float lineWidth, const rr::WindowRectangle& viewport);
void verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess);
};
ColoredLineCase::ColoredLineCase (Context& context, const char* name, const char* description, const LineRenderTestCase::ColoredLineData* linesBegin, const LineRenderTestCase::ColoredLineData* linesEnd, float lineWidth, const rr::WindowRectangle& viewport)
: LineRenderTestCase (context, name, description, linesBegin, linesEnd, lineWidth, viewport)
{
}
void ColoredLineCase::verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess)
{
const bool msaa = m_context.getRenderTarget().getNumSamples() > 1;
tcu::TestLog& log = m_testCtx.getLog();
if (!msaa)
{
const int kernelRadius = 1;
const int faultyLimit = 6;
int faultyPixels;
tcu::Surface diffMask(TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
log << TestLog::Message << "Comparing images... " << TestLog::EndMessage;
log << TestLog::Message << "Deviation within radius of " << kernelRadius << " is allowed." << TestLog::EndMessage;
log << TestLog::Message << faultyLimit << " faulty pixels are allowed." << TestLog::EndMessage;
faultyPixels = compareColoredImages(log, testImageAccess, referenceImageAccess, diffMask.getAccess(), kernelRadius);
if (faultyPixels > faultyLimit)
{
log << TestLog::ImageSet("Images", "Image comparison")
<< TestLog::Image("TestImage", "Test image", testImageAccess)
<< TestLog::Image("ReferenceImage", "Reference image", referenceImageAccess)
<< TestLog::Image("DifferenceMask", "Difference mask", diffMask.getAccess())
<< TestLog::EndImageSet
<< tcu::TestLog::Message << "Got " << faultyPixels << " faulty pixel(s)." << tcu::TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got faulty pixels");
}
}
else
{
const float threshold = 0.3f;
if (!tcu::fuzzyCompare(log, "Images", "", referenceImageAccess, testImageAccess, threshold, tcu::COMPARE_LOG_ON_ERROR))
{
if (m_lineWidth != 1.0f)
{
log << TestLog::Message << "Wide line support is optional, reporting compatibility warning." << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Wide line clipping failed");
}
else
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got faulty pixels");
}
}
}
class TriangleCaseBase : public RenderTestCase
{
public:
struct TriangleData
{
tcu::Vec4 p0;
tcu::Vec4 c0;
tcu::Vec4 p1;
tcu::Vec4 c1;
tcu::Vec4 p2;
tcu::Vec4 c2;
};
TriangleCaseBase (Context& context, const char* name, const char* description, const TriangleData* polysBegin, const TriangleData* polysEnd, const rr::WindowRectangle& viewport);
virtual void verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess) = DE_NULL;
void testRender (void);
private:
const std::vector<TriangleData> m_polys;
const rr::WindowRectangle m_viewport;
};
TriangleCaseBase::TriangleCaseBase (Context& context, const char* name, const char* description, const TriangleData* polysBegin, const TriangleData* polysEnd, const rr::WindowRectangle& viewport)
: RenderTestCase(context, name, description)
, m_polys (polysBegin, polysEnd)
, m_viewport (viewport)
{
}
void TriangleCaseBase::testRender (void)
{
using tcu::TestLog;
const int numSamples = de::max(m_context.getRenderTarget().getNumSamples(), 1);
const int verticesPerTriangle = 3;
tcu::TestLog& log = m_testCtx.getLog();
sglr::GLContext glesContext (m_context.getRenderContext(), log, 0, tcu::IVec4(0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE));
sglr::ReferenceContextLimits limits;
sglr::ReferenceContextBuffers buffers (m_context.getRenderTarget().getPixelFormat(), m_context.getRenderTarget().getDepthBits(), 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE, numSamples);
sglr::ReferenceContext refContext (limits, buffers.getColorbuffer(), buffers.getDepthbuffer(), buffers.getStencilbuffer());
PositionColorShader program;
tcu::Surface testSurface (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
tcu::Surface refSurface (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
sglr::Context* contexts[2] = {&glesContext, &refContext};
tcu::Surface* surfaces[2] = {&testSurface, &refSurface};
// log the purpose of the test
log << TestLog::Message << "Viewport: left=" << m_viewport.left << "\tbottom=" << m_viewport.bottom << "\twidth=" << m_viewport.width << "\theight=" << m_viewport.height << TestLog::EndMessage;
log << TestLog::Message << "Rendering triangles. Coordinates:" << TestLog::EndMessage;
for (size_t ndx = 0; ndx < m_polys.size(); ++ndx)
{
const std::string v0Properties = genClippingPointInfoString(m_polys[ndx].p0);
const std::string v1Properties = genClippingPointInfoString(m_polys[ndx].p1);
const std::string v2Properties = genClippingPointInfoString(m_polys[ndx].p2);
const std::string c0Properties = genColorString(m_polys[ndx].c0);
const std::string c1Properties = genColorString(m_polys[ndx].c1);
const std::string c2Properties = genColorString(m_polys[ndx].c2);
log << TestLog::Message << "\tv0 (x=" << m_polys[ndx].p0.x() << "\ty=" << m_polys[ndx].p0.y() << "\tz=" << m_polys[ndx].p0.z() << "\tw=" << m_polys[ndx].p0.w() << ")\t" << v0Properties << "\t" << c0Properties << TestLog::EndMessage;
log << TestLog::Message << "\tv1 (x=" << m_polys[ndx].p1.x() << "\ty=" << m_polys[ndx].p1.y() << "\tz=" << m_polys[ndx].p1.z() << "\tw=" << m_polys[ndx].p1.w() << ")\t" << v1Properties << "\t" << c1Properties << TestLog::EndMessage;
log << TestLog::Message << "\tv2 (x=" << m_polys[ndx].p2.x() << "\ty=" << m_polys[ndx].p2.y() << "\tz=" << m_polys[ndx].p2.z() << "\tw=" << m_polys[ndx].p2.w() << ")\t" << v2Properties << "\t" << c2Properties << TestLog::EndMessage;
log << TestLog::Message << TestLog::EndMessage;
}
// render test image
for (int contextNdx = 0; contextNdx < 2; ++contextNdx)
{
sglr::Context& ctx = *contexts[contextNdx];
tcu::Surface& dstSurface = *surfaces[contextNdx];
const deUint32 programId = ctx.createProgram(&program);
const GLint positionLoc = ctx.getAttribLocation(programId, "a_position");
const GLint colorLoc = ctx.getAttribLocation(programId, "a_color");
ctx.clearColor (0, 0, 0, 1);
ctx.clearDepthf (1.0f);
ctx.clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
ctx.viewport (m_viewport.left, m_viewport.bottom, m_viewport.width, m_viewport.height);
ctx.useProgram (programId);
ctx.enableVertexAttribArray (positionLoc);
ctx.enableVertexAttribArray (colorLoc);
ctx.vertexAttribPointer (positionLoc, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat[8]), &m_polys[0].p0);
ctx.vertexAttribPointer (colorLoc, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat[8]), &m_polys[0].c0);
ctx.drawArrays (GL_TRIANGLES, 0, verticesPerTriangle * (glw::GLsizei)m_polys.size());
ctx.disableVertexAttribArray (positionLoc);
ctx.disableVertexAttribArray (colorLoc);
ctx.useProgram (0);
ctx.deleteProgram (programId);
ctx.finish ();
ctx.readPixels(dstSurface, 0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
}
verifyImage(testSurface.getAccess(), refSurface.getAccess());
}
class TriangleCase : public TriangleCaseBase
{
public:
TriangleCase (Context& context, const char* name, const char* description, const TriangleData* polysBegin, const TriangleData* polysEnd, const rr::WindowRectangle& viewport);
void verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess);
};
TriangleCase::TriangleCase (Context& context, const char* name, const char* description, const TriangleData* polysBegin, const TriangleData* polysEnd, const rr::WindowRectangle& viewport)
: TriangleCaseBase(context, name, description, polysBegin, polysEnd, viewport)
{
}
void TriangleCase::verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess)
{
const int kernelRadius = 1;
const int faultyLimit = 6;
tcu::TestLog& log = m_testCtx.getLog();
tcu::Surface diffMask (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
int faultyPixels;
log << TestLog::Message << "Comparing images... " << TestLog::EndMessage;
log << TestLog::Message << "Deviation within radius of " << kernelRadius << " is allowed." << TestLog::EndMessage;
log << TestLog::Message << faultyLimit << " faulty pixels are allowed." << TestLog::EndMessage;
faultyPixels = compareBlackNonBlackImages(log, testImageAccess, referenceImageAccess, diffMask.getAccess(), kernelRadius);
if (faultyPixels > faultyLimit)
{
log << TestLog::ImageSet("Images", "Image comparison")
<< TestLog::Image("TestImage", "Test image", testImageAccess)
<< TestLog::Image("ReferenceImage", "Reference image", referenceImageAccess)
<< TestLog::Image("DifferenceMask", "Difference mask", diffMask.getAccess())
<< TestLog::EndImageSet
<< tcu::TestLog::Message << "Got " << faultyPixels << " faulty pixel(s)." << tcu::TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got faulty pixels");
}
}
class TriangleAttributeCase : public TriangleCaseBase
{
public:
TriangleAttributeCase (Context& context, const char* name, const char* description, const TriangleData* polysBegin, const TriangleData* polysEnd, const rr::WindowRectangle& viewport);
void verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess);
};
TriangleAttributeCase::TriangleAttributeCase (Context& context, const char* name, const char* description, const TriangleData* polysBegin, const TriangleData* polysEnd, const rr::WindowRectangle& viewport)
: TriangleCaseBase(context, name, description, polysBegin, polysEnd, viewport)
{
}
void TriangleAttributeCase::verifyImage (const tcu::ConstPixelBufferAccess& testImageAccess, const tcu::ConstPixelBufferAccess& referenceImageAccess)
{
const bool msaa = m_context.getRenderTarget().getNumSamples() > 1;
tcu::TestLog& log = m_testCtx.getLog();
if (!msaa)
{
const int kernelRadius = 1;
const int faultyLimit = 6;
int faultyPixels;
tcu::Surface diffMask (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
log << TestLog::Message << "Comparing images... " << TestLog::EndMessage;
log << TestLog::Message << "Deviation within radius of " << kernelRadius << " is allowed." << TestLog::EndMessage;
log << TestLog::Message << faultyLimit << " faulty pixels are allowed." << TestLog::EndMessage;
faultyPixels = compareColoredImages(log, testImageAccess, referenceImageAccess, diffMask.getAccess(), kernelRadius);
if (faultyPixels > faultyLimit)
{
log << TestLog::ImageSet("Images", "Image comparison")
<< TestLog::Image("TestImage", "Test image", testImageAccess)
<< TestLog::Image("ReferenceImage", "Reference image", referenceImageAccess)
<< TestLog::Image("DifferenceMask", "Difference mask", diffMask.getAccess())
<< TestLog::EndImageSet
<< tcu::TestLog::Message << "Got " << faultyPixels << " faulty pixel(s)." << tcu::TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got faulty pixels");
}
}
else
{
const float threshold = 0.3f;
if (!tcu::fuzzyCompare(log, "Images", "", referenceImageAccess, testImageAccess, threshold, tcu::COMPARE_LOG_ON_ERROR))
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got faulty pixels");
}
}
class FillTest : public RenderTestCase
{
public:
FillTest (Context& context, const char* name, const char* description, const rr::WindowRectangle& viewport);
virtual void render (sglr::Context& ctx) = DE_NULL;
void testRender (void);
protected:
const rr::WindowRectangle m_viewport;
};
FillTest::FillTest (Context& context, const char* name, const char* description, const rr::WindowRectangle& viewport)
: RenderTestCase(context, name, description)
, m_viewport (viewport)
{
}
void FillTest::testRender (void)
{
using tcu::TestLog;
const int numSamples = 1;
tcu::TestLog& log = m_testCtx.getLog();
sglr::GLContext glesContext (m_context.getRenderContext(), log, 0, tcu::IVec4(0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE));
sglr::ReferenceContextLimits limits;
sglr::ReferenceContextBuffers buffers (m_context.getRenderTarget().getPixelFormat(), m_context.getRenderTarget().getDepthBits(), 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE, numSamples);
sglr::ReferenceContext refContext (limits, buffers.getColorbuffer(), buffers.getDepthbuffer(), buffers.getStencilbuffer());
tcu::Surface testSurface (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
tcu::Surface refSurface (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
render(glesContext);
glesContext.readPixels(testSurface, 0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
render(refContext);
refContext.readPixels(refSurface, 0, 0, TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
// check overdraw
{
bool overdrawOk;
tcu::Surface outputImage(TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
log << TestLog::Message << "Checking for overdraw " << TestLog::EndMessage;
overdrawOk = checkHalfFilledImageOverdraw(log, m_context.getRenderTarget(), testSurface.getAccess(), outputImage.getAccess());
if (!overdrawOk)
{
log << TestLog::ImageSet("Images", "Image comparison")
<< TestLog::Image("TestImage", "Test image", testSurface.getAccess())
<< TestLog::Image("InvalidPixels", "Invalid pixels", outputImage.getAccess())
<< TestLog::EndImageSet
<< tcu::TestLog::Message << "Got overdraw." << tcu::TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got overdraw");
}
}
// compare & check missing pixels
{
const int kernelRadius = 1;
tcu::Surface diffMask (TEST_CANVAS_SIZE, TEST_CANVAS_SIZE);
int faultyPixels;
log << TestLog::Message << "Comparing images... " << TestLog::EndMessage;
log << TestLog::Message << "Deviation within radius of " << kernelRadius << " is allowed." << TestLog::EndMessage;
blitImageOnBlackSurface(refSurface.getAccess(), refSurface.getAccess()); // makes images look right in Candy
faultyPixels = compareBlackNonBlackImages(log, testSurface.getAccess(), refSurface.getAccess(), diffMask.getAccess(), kernelRadius);
if (faultyPixels > 0)
{
log << TestLog::ImageSet("Images", "Image comparison")
<< TestLog::Image("TestImage", "Test image", testSurface.getAccess())
<< TestLog::Image("ReferenceImage", "Reference image", refSurface.getAccess())
<< TestLog::Image("DifferenceMask", "Difference mask", diffMask.getAccess())
<< TestLog::EndImageSet
<< tcu::TestLog::Message << "Got " << faultyPixels << " faulty pixel(s)." << tcu::TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got faulty pixels");
}
}
}
class TriangleFillTest : public FillTest
{
public:
struct FillTriangle
{
tcu::Vec4 v0;
tcu::Vec4 c0;
tcu::Vec4 v1;
tcu::Vec4 c1;
tcu::Vec4 v2;
tcu::Vec4 c2;
};
TriangleFillTest (Context& context, const char* name, const char* description, const rr::WindowRectangle& viewport);
void render (sglr::Context& ctx);
protected:
std::vector<FillTriangle> m_triangles;
};
TriangleFillTest::TriangleFillTest (Context& context, const char* name, const char* description, const rr::WindowRectangle& viewport)
: FillTest(context, name, description, viewport)
{
}
void TriangleFillTest::render (sglr::Context& ctx)
{
const int verticesPerTriangle = 3;
PositionColorShader program;
const deUint32 programId = ctx.createProgram(&program);
const GLint positionLoc = ctx.getAttribLocation(programId, "a_position");
const GLint colorLoc = ctx.getAttribLocation(programId, "a_color");
tcu::TestLog& log = m_testCtx.getLog();
// log the purpose of the test
log << TestLog::Message << "Viewport: left=" << m_viewport.left << "\tbottom=" << m_viewport.bottom << "\twidth=" << m_viewport.width << "\theight=" << m_viewport.height << TestLog::EndMessage;
log << TestLog::Message << "Rendering triangles. Coordinates:" << TestLog::EndMessage;
for (size_t ndx = 0; ndx < m_triangles.size(); ++ndx)
{
const std::string v0Properties = genClippingPointInfoString(m_triangles[ndx].v0);
const std::string v1Properties = genClippingPointInfoString(m_triangles[ndx].v1);
const std::string v2Properties = genClippingPointInfoString(m_triangles[ndx].v2);
log << TestLog::Message << "\tv0 (x=" << m_triangles[ndx].v0.x() << "\ty=" << m_triangles[ndx].v0.y() << "\tz=" << m_triangles[ndx].v0.z() << "\tw=" << m_triangles[ndx].v0.w() << ")\t" << v0Properties << TestLog::EndMessage;
log << TestLog::Message << "\tv1 (x=" << m_triangles[ndx].v1.x() << "\ty=" << m_triangles[ndx].v1.y() << "\tz=" << m_triangles[ndx].v1.z() << "\tw=" << m_triangles[ndx].v1.w() << ")\t" << v1Properties << TestLog::EndMessage;
log << TestLog::Message << "\tv2 (x=" << m_triangles[ndx].v2.x() << "\ty=" << m_triangles[ndx].v2.y() << "\tz=" << m_triangles[ndx].v2.z() << "\tw=" << m_triangles[ndx].v2.w() << ")\t" << v2Properties << TestLog::EndMessage;
log << TestLog::Message << TestLog::EndMessage;
}
ctx.clearColor (0, 0, 0, 1);
ctx.clearDepthf (1.0f);
ctx.clear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
ctx.viewport (m_viewport.left, m_viewport.bottom, m_viewport.width, m_viewport.height);
ctx.useProgram (programId);
ctx.blendFunc (GL_ONE, GL_ONE);
ctx.enable (GL_BLEND);
ctx.enableVertexAttribArray (positionLoc);
ctx.enableVertexAttribArray (colorLoc);
ctx.vertexAttribPointer (positionLoc, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat[8]), &m_triangles[0].v0);
ctx.vertexAttribPointer (colorLoc, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat[8]), &m_triangles[0].c0);
ctx.drawArrays (GL_TRIANGLES, 0, verticesPerTriangle * (glw::GLsizei)m_triangles.size());
ctx.disableVertexAttribArray (positionLoc);
ctx.disableVertexAttribArray (colorLoc);
ctx.useProgram (0);
ctx.deleteProgram (programId);
ctx.finish ();
}
class QuadFillTest : public TriangleFillTest
{
public:
QuadFillTest (Context& context, const char* name, const char* description, const rr::WindowRectangle& viewport, const tcu::Vec3& d1, const tcu::Vec3& d2, const tcu::Vec3& center_ = tcu::Vec3(0, 0, 0));
};
QuadFillTest::QuadFillTest (Context& context, const char* name, const char* description, const rr::WindowRectangle& viewport, const tcu::Vec3& d1, const tcu::Vec3& d2, const tcu::Vec3& center_)
: TriangleFillTest(context, name, description, viewport)
{
const float radius = 40000.0f;
const tcu::Vec4 center = tcu::Vec4(center_.x(), center_.y(), center_.z(), 1.0f);
const tcu::Vec4 halfWhite = tcu::Vec4(0.5f, 0.5f, 0.5f, 0.5f);
const tcu::Vec4 halfRed = tcu::Vec4(0.5f, 0.0f, 0.0f, 0.5f);
const tcu::Vec4 e1 = radius * tcu::Vec4(d1.x(), d1.y(), d1.z(), 0.0f);
const tcu::Vec4 e2 = radius * tcu::Vec4(d2.x(), d2.y(), d2.z(), 0.0f);
FillTriangle triangle1;
FillTriangle triangle2;
triangle1.c0 = halfWhite;
triangle1.c1 = halfWhite;
triangle1.c2 = halfWhite;
triangle1.v0 = center + e1 + e2;
triangle1.v1 = center + e1 - e2;
triangle1.v2 = center - e1 - e2;
m_triangles.push_back(triangle1);
triangle2.c0 = halfRed;
triangle2.c1 = halfRed;
triangle2.c2 = halfRed;
triangle2.v0 = center + e1 + e2;
triangle2.v1 = center - e1 - e2;
triangle2.v2 = center - e1 + e2;
m_triangles.push_back(triangle2);
}
class TriangleFanFillTest : public TriangleFillTest
{
public:
TriangleFanFillTest (Context& context, const char* name, const char* description, const rr::WindowRectangle& viewport);
};
TriangleFanFillTest::TriangleFanFillTest (Context& context, const char* name, const char* description, const rr::WindowRectangle& viewport)
: TriangleFillTest(context, name, description, viewport)
{
const float radius = 70000.0f;
const int trianglesPerVisit = 40;
const tcu::Vec4 center = tcu::Vec4(0, 0, 0, 1.0f);
const tcu::Vec4 halfWhite = tcu::Vec4(0.5f, 0.5f, 0.5f, 0.5f);
const tcu::Vec4 oddSliceColor = tcu::Vec4(0.0f, 0.0f, 0.5f, 0.0f);
// create a continuous surface that goes through all 6 clip planes
/*
* / /
* /_ _ _ _ _ /x
* | | |
* | | /
* | / --xe /
* | | | /
* |_ _ _ e _ _|/
*
* e = enter
* x = exit
*/
const struct ClipPlaneVisit
{
const tcu::Vec3 corner;
const tcu::Vec3 entryPoint;
const tcu::Vec3 exitPoint;
} visits[] =
{
{ tcu::Vec3( 1, 1, 1), tcu::Vec3( 0, 1, 1), tcu::Vec3( 1, 0, 1) },
{ tcu::Vec3( 1,-1, 1), tcu::Vec3( 1, 0, 1), tcu::Vec3( 1,-1, 0) },
{ tcu::Vec3( 1,-1,-1), tcu::Vec3( 1,-1, 0), tcu::Vec3( 0,-1,-1) },
{ tcu::Vec3(-1,-1,-1), tcu::Vec3( 0,-1,-1), tcu::Vec3(-1, 0,-1) },
{ tcu::Vec3(-1, 1,-1), tcu::Vec3(-1, 0,-1), tcu::Vec3(-1, 1, 0) },
{ tcu::Vec3(-1, 1, 1), tcu::Vec3(-1, 1, 0), tcu::Vec3( 0, 1, 1) },
};
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(visits); ++ndx)
{
const ClipPlaneVisit& visit = visits[ndx];
for (int tri = 0; tri < trianglesPerVisit; ++tri)
{
tcu::Vec3 vertex0;
tcu::Vec3 vertex1;
if (tri == 0) // first vertex is magic
{
vertex0 = visit.entryPoint;
}
else
{
const tcu::Vec3 v1 = visit.entryPoint - visit.corner;
const tcu::Vec3 v2 = visit.exitPoint - visit.corner;
vertex0 = visit.corner + tcu::normalize(tcu::mix(v1, v2, tcu::Vec3(float(tri)/trianglesPerVisit)));
}
if (tri == trianglesPerVisit-1) // last vertex is magic
{
vertex1 = visit.exitPoint;
}
else
{
const tcu::Vec3 v1 = visit.entryPoint - visit.corner;
const tcu::Vec3 v2 = visit.exitPoint - visit.corner;
vertex1 = visit.corner + tcu::normalize(tcu::mix(v1, v2, tcu::Vec3(float(tri+1)/trianglesPerVisit)));
}
// write vec out
{
FillTriangle triangle;
triangle.c0 = (tri % 2) ? halfWhite : halfWhite + oddSliceColor;
triangle.c1 = (tri % 2) ? halfWhite : halfWhite + oddSliceColor;
triangle.c2 = (tri % 2) ? halfWhite : halfWhite + oddSliceColor;
triangle.v0 = center;
triangle.v1 = tcu::Vec4(vertex0.x() * radius, vertex0.y() * radius, vertex0.z() * radius, 1.0f);
triangle.v2 = tcu::Vec4(vertex1.x() * radius, vertex1.y() * radius, vertex1.z() * radius, 1.0f);
m_triangles.push_back(triangle);
}
}
}
}
class PointsTestGroup : public TestCaseGroup
{
public:
PointsTestGroup (Context& context);
void init (void);
};
PointsTestGroup::PointsTestGroup (Context& context)
: TestCaseGroup(context, "point", "Point clipping tests")
{
}
void PointsTestGroup::init (void)
{
const float littleOverViewport = 1.0f + (2.0f / (TEST_CANVAS_SIZE)); // one pixel over the viewport edge in VIEWPORT_WHOLE, half pixels over in the reduced viewport.
const tcu::Vec4 viewportTestPoints[] =
{
// in clip volume
tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f),
tcu::Vec4( 0.1f, 0.1f, 0.1f, 1.0f),
tcu::Vec4(-0.1f, 0.1f, -0.1f, 1.0f),
tcu::Vec4(-0.1f, -0.1f, 0.1f, 1.0f),
tcu::Vec4( 0.1f, -0.1f, -0.1f, 1.0f),
// in clip volume with w != 1
tcu::Vec4( 2.0f, 2.0f, 2.0f, 3.0f),
tcu::Vec4(-2.0f, -2.0f, 2.0f, 3.0f),
tcu::Vec4( 0.5f, -0.5f, 0.5f, 0.7f),
tcu::Vec4(-0.5f, 0.5f, -0.5f, 0.7f),
// near the edge
tcu::Vec4(-2.0f, -2.0f, 0.0f, 2.2f),
tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.1f),
tcu::Vec4(-1.0f, 1.0f, 0.0f, 1.1f),
// not in the volume but still between near and far planes
tcu::Vec4( 1.3f, 0.0f, 0.0f, 1.0f),
tcu::Vec4(-1.3f, 0.0f, 0.0f, 1.0f),
tcu::Vec4( 0.0f, 1.3f, 0.0f, 1.0f),
tcu::Vec4( 0.0f, -1.3f, 0.0f, 1.0f),
tcu::Vec4(-1.3f, -1.3f, 0.0f, 1.0f),
tcu::Vec4(-1.3f, 1.3f, 0.0f, 1.0f),
tcu::Vec4( 1.3f, 1.3f, 0.0f, 1.0f),
tcu::Vec4( 1.3f, -1.3f, 0.0f, 1.0f),
// outside the viewport, wide points have fragments in the viewport
tcu::Vec4( littleOverViewport, littleOverViewport, 0.0f, 1.0f),
tcu::Vec4( 0.0f, littleOverViewport, 0.0f, 1.0f),
tcu::Vec4( littleOverViewport, 0.0f, 0.0f, 1.0f),
};
const tcu::Vec4 depthTestPoints[] =
{
// in clip volume
tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f),
tcu::Vec4( 0.1f, 0.1f, 0.1f, 1.0f),
tcu::Vec4(-0.1f, 0.1f, -0.1f, 1.0f),
tcu::Vec4(-0.1f, -0.1f, 0.1f, 1.0f),
tcu::Vec4( 0.1f, -0.1f, -0.1f, 1.0f),
// not between the near and the far planes. These should be clipped
tcu::Vec4( 0.1f, 0.0f, 1.1f, 1.0f),
tcu::Vec4(-0.1f, 0.0f, -1.1f, 1.0f),
tcu::Vec4(-0.0f, -0.1f, 1.1f, 1.0f),
tcu::Vec4( 0.0f, 0.1f, -1.1f, 1.0f)
};
addChild(new PointCase(m_context, "point_z_clip", "point z clipping", DE_ARRAY_BEGIN(depthTestPoints), DE_ARRAY_END(depthTestPoints), 1.0f, VIEWPORT_WHOLE));
addChild(new PointCase(m_context, "point_z_clip_viewport_center", "point z clipping", DE_ARRAY_BEGIN(depthTestPoints), DE_ARRAY_END(depthTestPoints), 1.0f, VIEWPORT_CENTER));
addChild(new PointCase(m_context, "point_z_clip_viewport_corner", "point z clipping", DE_ARRAY_BEGIN(depthTestPoints), DE_ARRAY_END(depthTestPoints), 1.0f, VIEWPORT_CORNER));
addChild(new PointCase(m_context, "point_clip_viewport_center", "point viewport clipping", DE_ARRAY_BEGIN(viewportTestPoints), DE_ARRAY_END(viewportTestPoints), 1.0f, VIEWPORT_CENTER));
addChild(new PointCase(m_context, "point_clip_viewport_corner", "point viewport clipping", DE_ARRAY_BEGIN(viewportTestPoints), DE_ARRAY_END(viewportTestPoints), 1.0f, VIEWPORT_CORNER));
addChild(new PointCase(m_context, "wide_point_z_clip", "point z clipping", DE_ARRAY_BEGIN(depthTestPoints), DE_ARRAY_END(depthTestPoints), 5.0f, VIEWPORT_WHOLE));
addChild(new PointCase(m_context, "wide_point_z_clip_viewport_center", "point z clipping", DE_ARRAY_BEGIN(depthTestPoints), DE_ARRAY_END(depthTestPoints), 5.0f, VIEWPORT_CENTER));
addChild(new PointCase(m_context, "wide_point_z_clip_viewport_corner", "point z clipping", DE_ARRAY_BEGIN(depthTestPoints), DE_ARRAY_END(depthTestPoints), 5.0f, VIEWPORT_CORNER));
addChild(new PointCase(m_context, "wide_point_clip", "point viewport clipping", DE_ARRAY_BEGIN(viewportTestPoints), DE_ARRAY_END(viewportTestPoints), 5.0f, VIEWPORT_WHOLE));
addChild(new PointCase(m_context, "wide_point_clip_viewport_center", "point viewport clipping", DE_ARRAY_BEGIN(viewportTestPoints), DE_ARRAY_END(viewportTestPoints), 5.0f, VIEWPORT_CENTER));
addChild(new PointCase(m_context, "wide_point_clip_viewport_corner", "point viewport clipping", DE_ARRAY_BEGIN(viewportTestPoints), DE_ARRAY_END(viewportTestPoints), 5.0f, VIEWPORT_CORNER));
}
class LinesTestGroup : public TestCaseGroup
{
public:
LinesTestGroup (Context& context);
void init (void);
};
LinesTestGroup::LinesTestGroup (Context& context)
: TestCaseGroup(context, "line", "Line clipping tests")
{
}
void LinesTestGroup::init (void)
{
const float littleOverViewport = 1.0f + (2.0f / (TEST_CANVAS_SIZE)); // one pixel over the viewport edge in VIEWPORT_WHOLE, half pixels over in the reduced viewport.
// lines
const LineRenderTestCase::ColorlessLineData viewportTestLines[] =
{
// from center to outside of viewport
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4( 0.0f, 1.5f, 0.0f, 1.0f)},
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4(-1.5f, 1.0f, 0.0f, 1.0f)},
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4(-1.5f, 0.0f, 0.0f, 1.0f)},
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4( 0.2f, 0.4f, 1.5f, 1.0f)},
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4(-2.0f, -1.0f, 0.0f, 1.0f)},
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4( 1.0f, 0.1f, 0.0f, 0.6f)},
// from outside to inside of viewport
{tcu::Vec4( 1.5f, 0.0f, 0.0f, 1.0f), tcu::Vec4( 0.8f, -0.2f, 0.0f, 1.0f)},
{tcu::Vec4( 0.0f, -1.5f, 0.0f, 1.0f), tcu::Vec4( 0.9f, -0.7f, 0.0f, 1.0f)},
// from outside to outside
{tcu::Vec4( 0.0f, -1.3f, 0.0f, 1.0f), tcu::Vec4( 1.3f, 0.0f, 0.0f, 1.0f)},
// outside the viewport, wide lines have fragments in the viewport
{tcu::Vec4(-0.8f, -littleOverViewport, 0.0f, 1.0f), tcu::Vec4( 0.0f, -littleOverViewport, 0.0f, 1.0f)},
{tcu::Vec4(-littleOverViewport - 1.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4( 0.0f, -littleOverViewport - 1.0f, 0.0f, 1.0f)},
};
const LineRenderTestCase::ColorlessLineData depthTestLines[] =
{
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4( 1.3f, 1.0f, 2.0f, 1.0f)},
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4( 1.3f, -1.0f, 2.0f, 1.0f)},
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4(-1.0f, -1.1f, -2.0f, 1.0f)},
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4(-1.0f, 1.1f, -2.0f, 1.0f)},
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), tcu::Vec4( 1.0f, 0.1f, 2.0f, 0.6f)},
};
const LineRenderTestCase::ColorlessLineData longTestLines[] =
{
{tcu::Vec4( -41000.0f, -40000.0f, -1000000.0f, 1.0f), tcu::Vec4( 41000.0f, 40000.0f, 1000000.0f, 1.0f)},
{tcu::Vec4( 41000.0f, -40000.0f, 1000000.0f, 1.0f), tcu::Vec4(-41000.0f, 40000.0f, -1000000.0f, 1.0f)},
{tcu::Vec4( 0.5f, -40000.0f, 100000.0f, 1.0f), tcu::Vec4( 0.5f, 40000.0f, -100000.0f, 1.0f)},
{tcu::Vec4( -0.5f, 40000.0f, 100000.0f, 1.0f), tcu::Vec4(-0.5f, -40000.0f, -100000.0f, 1.0f)},
};
// line attribute clipping
const tcu::Vec4 red (1.0f, 0.0f, 0.0f, 1.0f);
const tcu::Vec4 yellow (1.0f, 1.0f, 0.0f, 1.0f);
const tcu::Vec4 lightBlue (0.3f, 0.3f, 1.0f, 1.0f);
const LineRenderTestCase::ColoredLineData colorTestLines[] =
{
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), red, tcu::Vec4( 1.3f, 1.0f, 2.0f, 1.0f), yellow },
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), red, tcu::Vec4( 1.3f, -1.0f, 2.0f, 1.0f), lightBlue },
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), red, tcu::Vec4(-1.0f, -1.0f, -2.0f, 1.0f), yellow },
{tcu::Vec4( 0.0f, 0.0f, 0.0f, 1.0f), red, tcu::Vec4(-1.0f, 1.0f, -2.0f, 1.0f), lightBlue },
};
// line clipping
addChild(new LineCase(m_context, "line_z_clip", "line z clipping", DE_ARRAY_BEGIN(depthTestLines), DE_ARRAY_END(depthTestLines), 1.0f, VIEWPORT_WHOLE));
addChild(new LineCase(m_context, "line_z_clip_viewport_center", "line z clipping", DE_ARRAY_BEGIN(depthTestLines), DE_ARRAY_END(depthTestLines), 1.0f, VIEWPORT_CENTER));
addChild(new LineCase(m_context, "line_z_clip_viewport_corner", "line z clipping", DE_ARRAY_BEGIN(depthTestLines), DE_ARRAY_END(depthTestLines), 1.0f, VIEWPORT_CORNER));
addChild(new LineCase(m_context, "line_clip_viewport_center", "line viewport clipping", DE_ARRAY_BEGIN(viewportTestLines), DE_ARRAY_END(viewportTestLines), 1.0f, VIEWPORT_CENTER));
addChild(new LineCase(m_context, "line_clip_viewport_corner", "line viewport clipping", DE_ARRAY_BEGIN(viewportTestLines), DE_ARRAY_END(viewportTestLines), 1.0f, VIEWPORT_CORNER));
addChild(new LineCase(m_context, "wide_line_z_clip", "line z clipping", DE_ARRAY_BEGIN(depthTestLines), DE_ARRAY_END(depthTestLines), 5.0f, VIEWPORT_WHOLE));
addChild(new LineCase(m_context, "wide_line_z_clip_viewport_center", "line z clipping", DE_ARRAY_BEGIN(depthTestLines), DE_ARRAY_END(depthTestLines), 5.0f, VIEWPORT_CENTER));
addChild(new LineCase(m_context, "wide_line_z_clip_viewport_corner", "line z clipping", DE_ARRAY_BEGIN(depthTestLines), DE_ARRAY_END(depthTestLines), 5.0f, VIEWPORT_CORNER));
addChild(new LineCase(m_context, "wide_line_clip", "line viewport clipping", DE_ARRAY_BEGIN(viewportTestLines), DE_ARRAY_END(viewportTestLines), 5.0f, VIEWPORT_WHOLE));
addChild(new LineCase(m_context, "wide_line_clip_viewport_center", "line viewport clipping", DE_ARRAY_BEGIN(viewportTestLines), DE_ARRAY_END(viewportTestLines), 5.0f, VIEWPORT_CENTER));
addChild(new LineCase(m_context, "wide_line_clip_viewport_corner", "line viewport clipping", DE_ARRAY_BEGIN(viewportTestLines), DE_ARRAY_END(viewportTestLines), 5.0f, VIEWPORT_CORNER));
addChild(new LineCase(m_context, "long_line_clip", "line viewport clipping", DE_ARRAY_BEGIN(longTestLines), DE_ARRAY_END(longTestLines), 1.0f, VIEWPORT_WHOLE, 2));
addChild(new LineCase(m_context, "long_wide_line_clip", "line viewport clipping", DE_ARRAY_BEGIN(longTestLines), DE_ARRAY_END(longTestLines), 5.0f, VIEWPORT_WHOLE, 2));
// line attribute clipping
addChild(new ColoredLineCase(m_context, "line_attrib_clip", "line attribute clipping", DE_ARRAY_BEGIN(colorTestLines), DE_ARRAY_END(colorTestLines), 1.0f, VIEWPORT_WHOLE));
addChild(new ColoredLineCase(m_context, "wide_line_attrib_clip", "line attribute clipping", DE_ARRAY_BEGIN(colorTestLines), DE_ARRAY_END(colorTestLines), 5.0f, VIEWPORT_WHOLE));
}
class PolysTestGroup : public TestCaseGroup
{
public:
PolysTestGroup (Context& context);
void init (void);
};
PolysTestGroup::PolysTestGroup (Context& context)
: TestCaseGroup(context, "polygon", "Polygon clipping tests")
{
}
void PolysTestGroup::init (void)
{
const float large = 100000.0f;
const float offset = 0.9f;
const tcu::Vec4 white (1.0f, 1.0f, 1.0f, 1.0f);
const tcu::Vec4 red (1.0f, 0.0f, 0.0f, 1.0f);
const tcu::Vec4 yellow (1.0f, 1.0f, 0.0f, 1.0f);
const tcu::Vec4 blue (0.0f, 0.0f, 1.0f, 1.0f);
// basic cases
{
const TriangleCase::TriangleData viewportPolys[] =
{
// one vertex clipped
{tcu::Vec4(-0.8f, -0.2f, 0.0f, 1.0f), white, tcu::Vec4(-0.8f, 0.2f, 0.0f, 1.0f), white, tcu::Vec4(-1.3f, 0.05f, 0.0f, 1.0f), white},
// two vertices clipped
{tcu::Vec4(-0.6f, -1.2f, 0.0f, 1.0f), white, tcu::Vec4(-1.2f, -0.6f, 0.0f, 1.0f), white, tcu::Vec4(-0.6f, -0.6f, 0.0f, 1.0f), white},
// three vertices clipped
{tcu::Vec4(-1.1f, 0.6f, 0.0f, 1.0f), white, tcu::Vec4(-1.1f, 1.1f, 0.0f, 1.0f), white, tcu::Vec4(-0.6f, 1.1f, 0.0f, 1.0f), white},
{tcu::Vec4( 0.8f, 1.1f, 0.0f, 1.0f), white, tcu::Vec4( 0.95f,-1.1f, 0.0f, 1.0f), white, tcu::Vec4( 3.0f, 0.0f, 0.0f, 1.0f), white},
};
const TriangleCase::TriangleData depthPolys[] =
{
// one vertex clipped to Z+
{tcu::Vec4(-0.2f, 0.7f, 0.0f, 1.0f), white, tcu::Vec4( 0.2f, 0.7f, 0.0f, 1.0f), white, tcu::Vec4( 0.0f, 0.9f, 2.0f, 1.0f), white},
// two vertices clipped to Z-
{tcu::Vec4( 0.9f, 0.4f, -1.5f, 1.0f), white, tcu::Vec4( 0.9f, -0.4f, -1.5f, 1.0f), white, tcu::Vec4( 0.6f, 0.0f, 0.0f, 1.0f), white},
// three vertices clipped
{tcu::Vec4(-0.9f, 0.6f, -2.0f, 1.0f), white, tcu::Vec4(-0.9f, -0.6f, -2.0f, 1.0f), white, tcu::Vec4(-0.4f, 0.0f, 2.0f, 1.0f), white},
// three vertices clipped by X, Y and Z
{tcu::Vec4( 0.0f, -1.2f, 0.0f, 1.0f), white, tcu::Vec4( 0.0f, 0.5f, -1.5f, 1.0f), white, tcu::Vec4( 1.2f, -0.9f, 0.0f, 1.0f), white},
};
const TriangleCase::TriangleData largePolys[] =
{
// one vertex clipped
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), white, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), white, tcu::Vec4( 0.0f, -large, 2.0f, 1.0f), white},
// two vertices clipped
{tcu::Vec4( 0.5f, 0.5f, 0.0f, 1.0f), white, tcu::Vec4( large, 0.5f, 0.0f, 1.0f), white, tcu::Vec4( 0.5f, large, 0.0f, 1.0f), white},
// three vertices clipped
{tcu::Vec4(-0.9f, -large, 0.0f, 1.0f), white, tcu::Vec4(-1.1f, -large, 0.0f, 1.0f), white, tcu::Vec4(-0.9f, large, 0.0f, 1.0f), white},
};
const TriangleCase::TriangleData largeDepthPolys[] =
{
// one vertex clipped
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), white, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), white, tcu::Vec4( 0.0f, -large, large, 1.0f), white},
// two vertices clipped
{tcu::Vec4( 0.5f, 0.5f, 0.0f, 1.0f), white, tcu::Vec4( 0.9f, large/2, -large, 1.0f), white, tcu::Vec4( large/4, 0.0f, -large, 1.0f), white},
// three vertices clipped
{tcu::Vec4(-0.9f, large/4, large, 1.0f), white, tcu::Vec4(-0.5f, -large/4, -large, 1.0f), white, tcu::Vec4(-0.2f, large/4, large, 1.0f), white},
};
const TriangleCase::TriangleData attribPolys[] =
{
// one vertex clipped to edge, large
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, -large, 2.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
// two vertices clipped to edges, with non-uniform w
{tcu::Vec4( 0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, -0.6f, 0.0f, 1.0f), yellow, 16.0f*tcu::Vec4( 0.6f, -0.6f, 0.0f, 1.0f), blue},
// three vertices clipped, large, Z
{tcu::Vec4(-0.9f, large/4, large, 1.0f), red, tcu::Vec4(-0.5f, -large/4, -large, 1.0f), yellow, tcu::Vec4(-0.2f, large/4, large, 1.0f), blue},
};
addChild(new TriangleCase(m_context, "poly_clip_viewport_center", "polygon viewport clipping", DE_ARRAY_BEGIN(viewportPolys), DE_ARRAY_END(viewportPolys), VIEWPORT_CENTER));
addChild(new TriangleCase(m_context, "poly_clip_viewport_corner", "polygon viewport clipping", DE_ARRAY_BEGIN(viewportPolys), DE_ARRAY_END(viewportPolys), VIEWPORT_CORNER));
addChild(new TriangleCase(m_context, "poly_z_clip", "polygon z clipping", DE_ARRAY_BEGIN(depthPolys), DE_ARRAY_END(depthPolys), VIEWPORT_WHOLE));
addChild(new TriangleCase(m_context, "poly_z_clip_viewport_center", "polygon z clipping", DE_ARRAY_BEGIN(depthPolys), DE_ARRAY_END(depthPolys), VIEWPORT_CENTER));
addChild(new TriangleCase(m_context, "poly_z_clip_viewport_corner", "polygon z clipping", DE_ARRAY_BEGIN(depthPolys), DE_ARRAY_END(depthPolys), VIEWPORT_CORNER));
addChild(new TriangleCase(m_context, "large_poly_clip_viewport_center", "polygon viewport clipping", DE_ARRAY_BEGIN(largePolys), DE_ARRAY_END(largePolys), VIEWPORT_CENTER));
addChild(new TriangleCase(m_context, "large_poly_clip_viewport_corner", "polygon viewport clipping", DE_ARRAY_BEGIN(largePolys), DE_ARRAY_END(largePolys), VIEWPORT_CORNER));
addChild(new TriangleCase(m_context, "large_poly_z_clip", "polygon z clipping", DE_ARRAY_BEGIN(largeDepthPolys), DE_ARRAY_END(largeDepthPolys), VIEWPORT_WHOLE));
addChild(new TriangleCase(m_context, "large_poly_z_clip_viewport_center", "polygon z clipping", DE_ARRAY_BEGIN(largeDepthPolys), DE_ARRAY_END(largeDepthPolys), VIEWPORT_CENTER));
addChild(new TriangleCase(m_context, "large_poly_z_clip_viewport_corner", "polygon z clipping", DE_ARRAY_BEGIN(largeDepthPolys), DE_ARRAY_END(largeDepthPolys), VIEWPORT_CORNER));
addChild(new TriangleAttributeCase(m_context, "poly_attrib_clip", "polygon clipping", DE_ARRAY_BEGIN(attribPolys), DE_ARRAY_END(attribPolys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "poly_attrib_clip_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(attribPolys), DE_ARRAY_END(attribPolys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "poly_attrib_clip_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(attribPolys), DE_ARRAY_END(attribPolys), VIEWPORT_CORNER));
}
// multiple polygons
{
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to edge
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, -offset, 2.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
// two vertices clipped to edges, with non-uniform w
{tcu::Vec4( 0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, -0.6f, 0.0f, 1.0f), yellow, 16.0f*tcu::Vec4( 0.6f, -0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, 16.0f*tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, 0.6f, 0.0f, 1.0f), yellow, 16.0f*tcu::Vec4(-0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, -0.6f, 0.0f, 1.0f), yellow, 16.0f*tcu::Vec4(-0.6f, -0.6f, 0.0f, 1.0f), blue},
// three vertices clipped, Z
{tcu::Vec4(-0.9f, offset/4, offset, 1.0f), red, tcu::Vec4(-0.5f, -offset/4, -offset, 1.0f), yellow, tcu::Vec4(-0.2f, offset/4, offset, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_0", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_0_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_0_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, -offset, 2.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
// two vertices clipped to edges, with non-uniform w
{tcu::Vec4( 0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, -0.6f, 0.0f, 1.0f), yellow, 16.0f*tcu::Vec4( 0.6f, -0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, 16.0f*tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, 0.6f, 0.0f, 1.0f), yellow, 16.0f*tcu::Vec4(-0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, -0.6f, 0.0f, 1.0f), yellow, 16.0f*tcu::Vec4(-0.6f, -0.6f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_1", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_1_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_1_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, -offset, 2.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, -0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, -0.6f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_2", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_2_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_2_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, -offset, -2.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, -0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, -0.6f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_3", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_3_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_3_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(0.3f, 0.2f, 0.0f, 1.0f), red, tcu::Vec4( 0.3f, -0.2f, 0.0f, 1.0f), yellow, tcu::Vec4( offset, 0.0f, 2.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, -0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, -0.6f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_4", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_4_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_4_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(-0.3f, 0.2f, 0.0f, 1.0f), red, tcu::Vec4(-0.3f, -0.2f, 0.0f, 1.0f), yellow, tcu::Vec4(-offset, 0.0f, 2.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, -0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, -0.6f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_5", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_5_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_5_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(-0.2f, 0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, 0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, offset, 2.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, -0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, -0.6f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_6", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_6_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_6_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// two vertices clipped to edges
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
// two vertices clipped to edges
{tcu::Vec4( 0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, -0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4( 0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4( 1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, 1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, 0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, 0.6f, 0.0f, 1.0f), blue},
{tcu::Vec4(-0.6f, -1.2f, 0.0f, 1.0f), red, tcu::Vec4(-1.2f, -0.6f, 0.0f, 1.0f), yellow, tcu::Vec4(-0.6f, -0.6f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_7", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_7_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_7_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, -offset, 2.0f, 1.0f), blue},
// fill
{tcu::Vec4( -1.0f, -1.0f, 0.0f, 1.0f), white, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), white, tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), white},
{tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), blue, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), blue, tcu::Vec4( 1.0f, 1.0f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_8", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_8_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_8_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, -offset, 2.0f, 1.0f), blue},
// fill
{tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), red, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), red, tcu::Vec4( 1.0f, 1.0f, 0.0f, 1.0f), red},
{tcu::Vec4( -1.0f, -1.0f, 0.0f, 1.0f), blue, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), blue, tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_9", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_9_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_9_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, -offset, 2.0f, 1.0f), blue},
// fill
{tcu::Vec4( -1.0f, -1.0f, 0.0f, 1.0f), white, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), white, tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), white},
{tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), red, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), red, tcu::Vec4( 1.0f, 1.0f, 0.0f, 1.0f), red},
{tcu::Vec4( -1.0f, -1.0f, 0.0f, 1.0f), blue, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), blue, tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), blue},
};
addChild(new TriangleAttributeCase(m_context, "multiple_10", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_10_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_10_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
{
const TriangleAttributeCase::TriangleData polys[] =
{
// one vertex clipped to z
{tcu::Vec4(-0.2f, -0.3f, 0.0f, 1.0f), red, tcu::Vec4( 0.2f, -0.3f, 0.0f, 1.0f), yellow, tcu::Vec4( 0.0f, -offset, 2.0f, 1.0f), blue},
// fill
{tcu::Vec4( -1.0f, -1.0f, 0.0f, 1.0f), white, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), white, tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), white},
{tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), red, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), red, tcu::Vec4( 1.0f, 1.0f, 0.0f, 1.0f), red},
{tcu::Vec4( -1.0f, -1.0f, 0.0f, 1.0f), blue, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), blue, tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), blue},
{tcu::Vec4( -1.0f, 1.0f, 0.0f, 1.0f), yellow, tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f), yellow, tcu::Vec4( 1.0f, 1.0f, 0.0f, 1.0f), yellow},
};
addChild(new TriangleAttributeCase(m_context, "multiple_11", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_WHOLE));
addChild(new TriangleAttributeCase(m_context, "multiple_11_viewport_center", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CENTER));
addChild(new TriangleAttributeCase(m_context, "multiple_11_viewport_corner", "polygon clipping", DE_ARRAY_BEGIN(polys), DE_ARRAY_END(polys), VIEWPORT_CORNER));
}
}
}
class PolyEdgesTestGroup : public TestCaseGroup
{
public:
PolyEdgesTestGroup (Context& context);
void init (void);
};
PolyEdgesTestGroup::PolyEdgesTestGroup (Context& context)
: TestCaseGroup(context, "polygon_edge", "Polygon clipping edge tests")
{
}
void PolyEdgesTestGroup::init (void)
{
// Quads via origin
const struct Quad
{
tcu::Vec3 d1; // tangent
tcu::Vec3 d2; // bi-tangent
} quads[] =
{
{ tcu::Vec3( 1, 1, 1), tcu::Vec3( 1, -1, 1) },
{ tcu::Vec3( 1, 1, 1), tcu::Vec3(-1, 1.1f, 1) },
{ tcu::Vec3( 1, 1, 0), tcu::Vec3(-1, 1, 0) },
{ tcu::Vec3( 0, 1, 0), tcu::Vec3( 1, 0, 0) },
{ tcu::Vec3( 0, 1, 0), tcu::Vec3( 1, 0.1f, 0) },
};
// Quad near edge
const struct EdgeQuad
{
tcu::Vec3 d1; // tangent
tcu::Vec3 d2; // bi-tangent
tcu::Vec3 center; // center
} edgeQuads[] =
{
{ tcu::Vec3( 1, 0.01f, 0 ), tcu::Vec3( 0, 0.01f, 0), tcu::Vec3( 0, 0.99f, 0 ) }, // edge near x-plane
{ tcu::Vec3( 0.01f, 1, 0 ), tcu::Vec3( 0.01f, 0, 0), tcu::Vec3( 0.99f, 0, 0 ) }, // edge near y-plane
{ tcu::Vec3( 1, 1, 0.01f), tcu::Vec3( 0.01f, -0.01f, 0), tcu::Vec3( 0, 0, 0.99f) }, // edge near z-plane
};
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(quads); ++ndx)
addChild(new QuadFillTest(m_context, (std::string("quad_at_origin_") + de::toString(ndx)).c_str(), "polygon edge clipping", VIEWPORT_CENTER, quads[ndx].d1, quads[ndx].d2));
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(edgeQuads); ++ndx)
addChild(new QuadFillTest(m_context, (std::string("quad_near_edge_") + de::toString(ndx)).c_str(), "polygon edge clipping", VIEWPORT_CENTER, edgeQuads[ndx].d1, edgeQuads[ndx].d2, edgeQuads[ndx].center));
// Polyfan
addChild(new TriangleFanFillTest(m_context, "poly_fan", "polygon edge clipping", VIEWPORT_CENTER));
}
class PolyVertexClipTestGroup : public TestCaseGroup
{
public:
PolyVertexClipTestGroup (Context& context);
void init (void);
};
PolyVertexClipTestGroup::PolyVertexClipTestGroup (Context& context)
: TestCaseGroup(context, "triangle_vertex", "Clip n vertices")
{
}
void PolyVertexClipTestGroup::init (void)
{
const float far = 30000.0f;
const tcu::IVec3 outside[] =
{
// outside one clipping plane
tcu::IVec3(-1, 0, 0),
tcu::IVec3( 1, 0, 0),
tcu::IVec3( 0, 1, 0),
tcu::IVec3( 0, -1, 0),
tcu::IVec3( 0, 0, 1),
tcu::IVec3( 0, 0, -1),
// outside two clipping planes
tcu::IVec3(-1, -1, 0),
tcu::IVec3( 1, -1, 0),
tcu::IVec3( 1, 1, 0),
tcu::IVec3(-1, 1, 0),
tcu::IVec3(-1, 0, -1),
tcu::IVec3( 1, 0, -1),
tcu::IVec3( 1, 0, 1),
tcu::IVec3(-1, 0, 1),
tcu::IVec3( 0, -1, -1),
tcu::IVec3( 0, 1, -1),
tcu::IVec3( 0, 1, 1),
tcu::IVec3( 0, -1, 1),
// outside three clipping planes
tcu::IVec3(-1, -1, 1),
tcu::IVec3( 1, -1, 1),
tcu::IVec3( 1, 1, 1),
tcu::IVec3(-1, 1, 1),
tcu::IVec3(-1, -1, -1),
tcu::IVec3( 1, -1, -1),
tcu::IVec3( 1, 1, -1),
tcu::IVec3(-1, 1, -1),
};
de::Random rnd(0xabcdef);
TestCaseGroup* clipOne = new TestCaseGroup(m_context, "clip_one", "Clip one vertex");
TestCaseGroup* clipTwo = new TestCaseGroup(m_context, "clip_two", "Clip two vertices");
TestCaseGroup* clipThree = new TestCaseGroup(m_context, "clip_three", "Clip three vertices");
addChild(clipOne);
addChild(clipTwo);
addChild(clipThree);
// Test 1 point clipped
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(outside); ++ndx)
{
const float w0 = rnd.getFloat(0.2f, 16.0f);
const float w1 = rnd.getFloat(0.2f, 16.0f);
const float w2 = rnd.getFloat(0.2f, 16.0f);
const tcu::Vec4 white = tcu::Vec4( 1, 1, 1, 1);
const tcu::Vec3 r0 = tcu::Vec3( 0.2f, 0.3f, 0);
const tcu::Vec3 r1 = tcu::Vec3(-0.3f, -0.4f, 0);
const tcu::Vec3 r2 = IVec3ToVec3(outside[ndx]) * far;
const tcu::Vec4 p0 = tcu::Vec4(r0.x() * w0, r0.y() * w0, r0.z() * w0, w0);
const tcu::Vec4 p1 = tcu::Vec4(r1.x() * w1, r1.y() * w1, r1.z() * w1, w1);
const tcu::Vec4 p2 = tcu::Vec4(r2.x() * w2, r2.y() * w2, r2.z() * w2, w2);
const std::string name = std::string("clip") +
(outside[ndx].x() > 0 ? "_pos_x" : (outside[ndx].x() < 0 ? "_neg_x" : "")) +
(outside[ndx].y() > 0 ? "_pos_y" : (outside[ndx].y() < 0 ? "_neg_y" : "")) +
(outside[ndx].z() > 0 ? "_pos_z" : (outside[ndx].z() < 0 ? "_neg_z" : ""));
const TriangleCase::TriangleData triangle = {p0, white, p1, white, p2, white};
// don't try to test with degenerate (or almost degenerate) triangles
if (outside[ndx].x() == 0 && outside[ndx].y() == 0)
continue;
clipOne->addChild(new TriangleCase(m_context, name.c_str(), "clip one vertex", &triangle, &triangle + 1, VIEWPORT_CENTER));
}
// Special triangles for "clip_z" cases, default triangles is not good, since it has very small visible area => problems with MSAA
{
const tcu::Vec4 white = tcu::Vec4(1.0f, 1.0f, 1.0f, 1.0f);
const TriangleCase::TriangleData posZTriangle =
{
tcu::Vec4( 0.0f, -0.7f, -0.9f, 1.0f), white,
tcu::Vec4( 0.8f, 0.0f, -0.7f, 1.0f), white,
tcu::Vec4(-0.9f, 0.9f, 3.0f, 1.0f), white
};
const TriangleCase::TriangleData negZTriangle =
{
tcu::Vec4( 0.0f, -0.7f, 0.9f, 1.0f), white,
tcu::Vec4( 0.4f, 0.0f, 0.7f, 1.0f), white,
tcu::Vec4(-0.9f, 0.9f, -3.0f, 1.0f), white
};
clipOne->addChild(new TriangleCase(m_context, "clip_pos_z", "clip one vertex", &posZTriangle, &posZTriangle + 1, VIEWPORT_CENTER));
clipOne->addChild(new TriangleCase(m_context, "clip_neg_z", "clip one vertex", &negZTriangle, &negZTriangle + 1, VIEWPORT_CENTER));
}
// Test 2 points clipped
for (int ndx1 = 0; ndx1 < DE_LENGTH_OF_ARRAY(outside); ++ndx1)
for (int ndx2 = ndx1 + 1; ndx2 < DE_LENGTH_OF_ARRAY(outside); ++ndx2)
{
const float w0 = rnd.getFloat(0.2f, 16.0f);
const float w1 = rnd.getFloat(0.2f, 16.0f);
const float w2 = rnd.getFloat(0.2f, 16.0f);
const tcu::Vec4 white = tcu::Vec4( 1, 1, 1, 1);
const tcu::Vec3 r0 = tcu::Vec3( 0.2f, 0.3f, 0);
const tcu::IVec3 r1 = outside[ndx1];
const tcu::IVec3 r2 = outside[ndx2];
const tcu::Vec4 p0 = tcu::Vec4(r0.x() * w0, r0.y() * w0, r0.z() * w0, w0);
const tcu::Vec4 p1 = tcu::Vec4(float(r1.x()) * far * w1, float(r1.y()) * far * w1, float(r1.z()) * far * w1, w1);
const tcu::Vec4 p2 = tcu::Vec4(float(r2.x()) * far * w2, float(r2.y()) * far * w2, float(r2.z()) * far * w2, w2);
const std::string name = std::string("clip") +
(outside[ndx1].x() > 0 ? "_pos_x" : (outside[ndx1].x() < 0 ? "_neg_x" : "")) +
(outside[ndx1].y() > 0 ? "_pos_y" : (outside[ndx1].y() < 0 ? "_neg_y" : "")) +
(outside[ndx1].z() > 0 ? "_pos_z" : (outside[ndx1].z() < 0 ? "_neg_z" : "")) +
"_and" +
(outside[ndx2].x() > 0 ? "_pos_x" : (outside[ndx2].x() < 0 ? "_neg_x" : "")) +
(outside[ndx2].y() > 0 ? "_pos_y" : (outside[ndx2].y() < 0 ? "_neg_y" : "")) +
(outside[ndx2].z() > 0 ? "_pos_z" : (outside[ndx2].z() < 0 ? "_neg_z" : ""));
const TriangleCase::TriangleData triangle = {p0, white, p1, white, p2, white};
if (twoPointClippedTriangleInvisible(r0, r1, r2))
continue;
clipTwo->addChild(new TriangleCase(m_context, name.c_str(), "clip two vertices", &triangle, &triangle + 1, VIEWPORT_CENTER));
}
// Test 3 points clipped
for (int ndx1 = 0; ndx1 < DE_LENGTH_OF_ARRAY(outside); ++ndx1)
for (int ndx2 = ndx1 + 1; ndx2 < DE_LENGTH_OF_ARRAY(outside); ++ndx2)
for (int ndx3 = ndx2 + 1; ndx3 < DE_LENGTH_OF_ARRAY(outside); ++ndx3)
{
const float w0 = rnd.getFloat(0.2f, 16.0f);
const float w1 = rnd.getFloat(0.2f, 16.0f);
const float w2 = rnd.getFloat(0.2f, 16.0f);
const tcu::Vec4 white = tcu::Vec4(1, 1, 1, 1);
const tcu::IVec3 r0 = outside[ndx1];
const tcu::IVec3 r1 = outside[ndx2];
const tcu::IVec3 r2 = outside[ndx3];
const tcu::Vec4 p0 = tcu::Vec4(float(r0.x()) * far * w0, float(r0.y()) * far * w0, float(r0.z()) * far * w0, w0);
const tcu::Vec4 p1 = tcu::Vec4(float(r1.x()) * far * w1, float(r1.y()) * far * w1, float(r1.z()) * far * w1, w1);
const tcu::Vec4 p2 = tcu::Vec4(float(r2.x()) * far * w2, float(r2.y()) * far * w2, float(r2.z()) * far * w2, w2);
// ignore cases where polygon is along xz or yz planes
if (pointsOnLine(r0.swizzle(0, 1), r1.swizzle(0, 1), r2.swizzle(0, 1)))
continue;
// triangle is visible only if it intersects the origin
if (pointOnTriangle(tcu::IVec3(0, 0, 0), r0, r1, r2))
{
const TriangleCase::TriangleData triangle = {p0, white, p1, white, p2, white};
const std::string name = std::string("clip") +
(outside[ndx1].x() > 0 ? "_pos_x" : (outside[ndx1].x() < 0 ? "_neg_x" : "")) +
(outside[ndx1].y() > 0 ? "_pos_y" : (outside[ndx1].y() < 0 ? "_neg_y" : "")) +
(outside[ndx1].z() > 0 ? "_pos_z" : (outside[ndx1].z() < 0 ? "_neg_z" : "")) +
"_and" +
(outside[ndx2].x() > 0 ? "_pos_x" : (outside[ndx2].x() < 0 ? "_neg_x" : "")) +
(outside[ndx2].y() > 0 ? "_pos_y" : (outside[ndx2].y() < 0 ? "_neg_y" : "")) +
(outside[ndx2].z() > 0 ? "_pos_z" : (outside[ndx2].z() < 0 ? "_neg_z" : "")) +
"_and" +
(outside[ndx3].x() > 0 ? "_pos_x" : (outside[ndx3].x() < 0 ? "_neg_x" : "")) +
(outside[ndx3].y() > 0 ? "_pos_y" : (outside[ndx3].y() < 0 ? "_neg_y" : "")) +
(outside[ndx3].z() > 0 ? "_pos_z" : (outside[ndx3].z() < 0 ? "_neg_z" : ""));
clipThree->addChild(new TriangleCase(m_context, name.c_str(), "clip three vertices", &triangle, &triangle + 1, VIEWPORT_CENTER));
}
}
}
} // anonymous
ClippingTests::ClippingTests (Context& context)
: TestCaseGroup(context, "clipping", "Clipping tests")
{
}
ClippingTests::~ClippingTests (void)
{
}
void ClippingTests::init (void)
{
addChild(new PointsTestGroup (m_context));
addChild(new LinesTestGroup (m_context));
addChild(new PolysTestGroup (m_context));
addChild(new PolyEdgesTestGroup (m_context));
addChild(new PolyVertexClipTestGroup(m_context));
}
} // Functional
} // gles3
} // deqp