blob: fb3162131e1330ed1c811f500f8ac0e0a3cd223d [file] [log] [blame]
/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL (ES) 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 Texture test utilities.
*//*--------------------------------------------------------------------*/
#include "glsTextureTestUtil.hpp"
#include "gluDefs.hpp"
#include "gluDrawUtil.hpp"
#include "gluRenderContext.hpp"
#include "deRandom.hpp"
#include "tcuTestLog.hpp"
#include "tcuVectorUtil.hpp"
#include "tcuTextureUtil.hpp"
#include "tcuImageCompare.hpp"
#include "tcuStringTemplate.hpp"
#include "tcuTexLookupVerifier.hpp"
#include "tcuTexCompareVerifier.hpp"
#include "glwEnums.hpp"
#include "glwFunctions.hpp"
#include "qpWatchDog.h"
#include "deStringUtil.hpp"
using tcu::TestLog;
using std::vector;
using std::string;
using std::map;
namespace deqp
{
namespace gls
{
namespace TextureTestUtil
{
enum
{
MIN_SUBPIXEL_BITS = 4
};
SamplerType getSamplerType (tcu::TextureFormat format)
{
using tcu::TextureFormat;
switch (format.type)
{
case TextureFormat::SIGNED_INT8:
case TextureFormat::SIGNED_INT16:
case TextureFormat::SIGNED_INT32:
return SAMPLERTYPE_INT;
case TextureFormat::UNSIGNED_INT8:
case TextureFormat::UNSIGNED_INT32:
case TextureFormat::UNSIGNED_INT_1010102_REV:
return SAMPLERTYPE_UINT;
// Texture formats used in depth/stencil textures.
case TextureFormat::UNSIGNED_INT16:
case TextureFormat::UNSIGNED_INT_24_8:
return (format.order == TextureFormat::D || format.order == TextureFormat::DS) ? SAMPLERTYPE_FLOAT : SAMPLERTYPE_UINT;
default:
return SAMPLERTYPE_FLOAT;
}
}
SamplerType getFetchSamplerType (tcu::TextureFormat format)
{
using tcu::TextureFormat;
switch (format.type)
{
case TextureFormat::SIGNED_INT8:
case TextureFormat::SIGNED_INT16:
case TextureFormat::SIGNED_INT32:
return SAMPLERTYPE_FETCH_INT;
case TextureFormat::UNSIGNED_INT8:
case TextureFormat::UNSIGNED_INT32:
case TextureFormat::UNSIGNED_INT_1010102_REV:
return SAMPLERTYPE_FETCH_UINT;
// Texture formats used in depth/stencil textures.
case TextureFormat::UNSIGNED_INT16:
case TextureFormat::UNSIGNED_INT_24_8:
return (format.order == TextureFormat::D || format.order == TextureFormat::DS) ? SAMPLERTYPE_FETCH_FLOAT : SAMPLERTYPE_FETCH_UINT;
default:
return SAMPLERTYPE_FETCH_FLOAT;
}
}
static tcu::Texture1DView getSubView (const tcu::Texture1DView& view, int baseLevel, int maxLevel)
{
const int clampedBase = de::clamp(baseLevel, 0, view.getNumLevels()-1);
const int clampedMax = de::clamp(maxLevel, clampedBase, view.getNumLevels()-1);
const int numLevels = clampedMax-clampedBase+1;
return tcu::Texture1DView(numLevels, view.getLevels()+clampedBase);
}
static tcu::Texture2DView getSubView (const tcu::Texture2DView& view, int baseLevel, int maxLevel)
{
const int clampedBase = de::clamp(baseLevel, 0, view.getNumLevels()-1);
const int clampedMax = de::clamp(maxLevel, clampedBase, view.getNumLevels()-1);
const int numLevels = clampedMax-clampedBase+1;
return tcu::Texture2DView(numLevels, view.getLevels()+clampedBase);
}
static tcu::TextureCubeView getSubView (const tcu::TextureCubeView& view, int baseLevel, int maxLevel)
{
const int clampedBase = de::clamp(baseLevel, 0, view.getNumLevels()-1);
const int clampedMax = de::clamp(maxLevel, clampedBase, view.getNumLevels()-1);
const int numLevels = clampedMax-clampedBase+1;
const tcu::ConstPixelBufferAccess* levels[tcu::CUBEFACE_LAST];
for (int face = 0; face < tcu::CUBEFACE_LAST; face++)
levels[face] = view.getFaceLevels((tcu::CubeFace)face) + clampedBase;
return tcu::TextureCubeView(numLevels, levels);
}
static tcu::Texture3DView getSubView (const tcu::Texture3DView& view, int baseLevel, int maxLevel)
{
const int clampedBase = de::clamp(baseLevel, 0, view.getNumLevels()-1);
const int clampedMax = de::clamp(maxLevel, clampedBase, view.getNumLevels()-1);
const int numLevels = clampedMax-clampedBase+1;
return tcu::Texture3DView(numLevels, view.getLevels()+clampedBase);
}
static tcu::TextureCubeArrayView getSubView (const tcu::TextureCubeArrayView& view, int baseLevel, int maxLevel)
{
const int clampedBase = de::clamp(baseLevel, 0, view.getNumLevels()-1);
const int clampedMax = de::clamp(maxLevel, clampedBase, view.getNumLevels()-1);
const int numLevels = clampedMax-clampedBase+1;
return tcu::TextureCubeArrayView(numLevels, view.getLevels()+clampedBase);
}
inline float linearInterpolate (float t, float minVal, float maxVal)
{
return minVal + (maxVal - minVal) * t;
}
inline tcu::Vec4 linearInterpolate (float t, const tcu::Vec4& a, const tcu::Vec4& b)
{
return a + (b - a) * t;
}
inline float bilinearInterpolate (float x, float y, const tcu::Vec4& quad)
{
float w00 = (1.0f-x)*(1.0f-y);
float w01 = (1.0f-x)*y;
float w10 = x*(1.0f-y);
float w11 = x*y;
return quad.x()*w00 + quad.y()*w10 + quad.z()*w01 + quad.w()*w11;
}
inline float triangleInterpolate (float v0, float v1, float v2, float x, float y)
{
return v0 + (v2-v0)*x + (v1-v0)*y;
}
inline float triangleInterpolate (const tcu::Vec3& v, float x, float y)
{
return triangleInterpolate(v.x(), v.y(), v.z(), x, y);
}
SurfaceAccess::SurfaceAccess (tcu::Surface& surface, const tcu::PixelFormat& colorFmt, int x, int y, int width, int height)
: m_surface (&surface)
, m_colorMask (getColorMask(colorFmt))
, m_x (x)
, m_y (y)
, m_width (width)
, m_height (height)
{
}
SurfaceAccess::SurfaceAccess (tcu::Surface& surface, const tcu::PixelFormat& colorFmt)
: m_surface (&surface)
, m_colorMask (getColorMask(colorFmt))
, m_x (0)
, m_y (0)
, m_width (surface.getWidth())
, m_height (surface.getHeight())
{
}
SurfaceAccess::SurfaceAccess (const SurfaceAccess& parent, int x, int y, int width, int height)
: m_surface (parent.m_surface)
, m_colorMask (parent.m_colorMask)
, m_x (parent.m_x + x)
, m_y (parent.m_y + y)
, m_width (width)
, m_height (height)
{
}
// 1D lookup LOD computation.
inline float computeLodFromDerivates (LodMode mode, float dudx, float dudy)
{
float p = 0.0f;
switch (mode)
{
// \note [mika] Min and max bounds equal to exact with 1D textures
case LODMODE_EXACT:
case LODMODE_MIN_BOUND:
case LODMODE_MAX_BOUND:
p = de::max(deFloatAbs(dudx), deFloatAbs(dudy));
break;
default:
DE_ASSERT(DE_FALSE);
}
return deFloatLog2(p);
}
static float computeNonProjectedTriLod (LodMode mode, const tcu::IVec2& dstSize, deInt32 srcSize, const tcu::Vec3& sq)
{
float dux = (sq.z() - sq.x()) * (float)srcSize;
float duy = (sq.y() - sq.x()) * (float)srcSize;
float dx = (float)dstSize.x();
float dy = (float)dstSize.y();
return computeLodFromDerivates(mode, dux/dx, duy/dy);
}
// 2D lookup LOD computation.
inline float computeLodFromDerivates (LodMode mode, float dudx, float dvdx, float dudy, float dvdy)
{
float p = 0.0f;
switch (mode)
{
case LODMODE_EXACT:
p = de::max(deFloatSqrt(dudx*dudx + dvdx*dvdx), deFloatSqrt(dudy*dudy + dvdy*dvdy));
break;
case LODMODE_MIN_BOUND:
case LODMODE_MAX_BOUND:
{
float mu = de::max(deFloatAbs(dudx), deFloatAbs(dudy));
float mv = de::max(deFloatAbs(dvdx), deFloatAbs(dvdy));
p = mode == LODMODE_MIN_BOUND ? de::max(mu, mv) : mu + mv;
break;
}
default:
DE_ASSERT(DE_FALSE);
}
return deFloatLog2(p);
}
static float computeNonProjectedTriLod (LodMode mode, const tcu::IVec2& dstSize, const tcu::IVec2& srcSize, const tcu::Vec3& sq, const tcu::Vec3& tq)
{
float dux = (sq.z() - sq.x()) * (float)srcSize.x();
float duy = (sq.y() - sq.x()) * (float)srcSize.x();
float dvx = (tq.z() - tq.x()) * (float)srcSize.y();
float dvy = (tq.y() - tq.x()) * (float)srcSize.y();
float dx = (float)dstSize.x();
float dy = (float)dstSize.y();
return computeLodFromDerivates(mode, dux/dx, dvx/dx, duy/dy, dvy/dy);
}
// 3D lookup LOD computation.
inline float computeLodFromDerivates (LodMode mode, float dudx, float dvdx, float dwdx, float dudy, float dvdy, float dwdy)
{
float p = 0.0f;
switch (mode)
{
case LODMODE_EXACT:
p = de::max(deFloatSqrt(dudx*dudx + dvdx*dvdx + dwdx*dwdx), deFloatSqrt(dudy*dudy + dvdy*dvdy + dwdy*dwdy));
break;
case LODMODE_MIN_BOUND:
case LODMODE_MAX_BOUND:
{
float mu = de::max(deFloatAbs(dudx), deFloatAbs(dudy));
float mv = de::max(deFloatAbs(dvdx), deFloatAbs(dvdy));
float mw = de::max(deFloatAbs(dwdx), deFloatAbs(dwdy));
p = mode == LODMODE_MIN_BOUND ? de::max(de::max(mu, mv), mw) : (mu + mv + mw);
break;
}
default:
DE_ASSERT(DE_FALSE);
}
return deFloatLog2(p);
}
static float computeNonProjectedTriLod (LodMode mode, const tcu::IVec2& dstSize, const tcu::IVec3& srcSize, const tcu::Vec3& sq, const tcu::Vec3& tq, const tcu::Vec3& rq)
{
float dux = (sq.z() - sq.x()) * (float)srcSize.x();
float duy = (sq.y() - sq.x()) * (float)srcSize.x();
float dvx = (tq.z() - tq.x()) * (float)srcSize.y();
float dvy = (tq.y() - tq.x()) * (float)srcSize.y();
float dwx = (rq.z() - rq.x()) * (float)srcSize.z();
float dwy = (rq.y() - rq.x()) * (float)srcSize.z();
float dx = (float)dstSize.x();
float dy = (float)dstSize.y();
return computeLodFromDerivates(mode, dux/dx, dvx/dx, dwx/dx, duy/dy, dvy/dy, dwy/dy);
}
static inline float projectedTriInterpolate (const tcu::Vec3& s, const tcu::Vec3& w, float nx, float ny)
{
return (s[0]*(1.0f-nx-ny)/w[0] + s[1]*ny/w[1] + s[2]*nx/w[2]) / ((1.0f-nx-ny)/w[0] + ny/w[1] + nx/w[2]);
}
static inline float triDerivateX (const tcu::Vec3& s, const tcu::Vec3& w, float wx, float width, float ny)
{
float d = w[1]*w[2]*(width*(ny - 1.0f) + wx) - w[0]*(w[2]*width*ny + w[1]*wx);
return (w[0]*w[1]*w[2]*width * (w[1]*(s[0] - s[2])*(ny - 1.0f) + ny*(w[2]*(s[1] - s[0]) + w[0]*(s[2] - s[1])))) / (d*d);
}
static inline float triDerivateY (const tcu::Vec3& s, const tcu::Vec3& w, float wy, float height, float nx)
{
float d = w[1]*w[2]*(height*(nx - 1.0f) + wy) - w[0]*(w[1]*height*nx + w[2]*wy);
return (w[0]*w[1]*w[2]*height * (w[2]*(s[0] - s[1])*(nx - 1.0f) + nx*(w[0]*(s[1] - s[2]) + w[1]*(s[2] - s[0])))) / (d*d);
}
// 1D lookup LOD.
static float computeProjectedTriLod (LodMode mode, const tcu::Vec3& u, const tcu::Vec3& projection, float wx, float wy, float width, float height)
{
// Exact derivatives.
float dudx = triDerivateX(u, projection, wx, width, wy/height);
float dudy = triDerivateY(u, projection, wy, height, wx/width);
return computeLodFromDerivates(mode, dudx, dudy);
}
// 2D lookup LOD.
static float computeProjectedTriLod (LodMode mode, const tcu::Vec3& u, const tcu::Vec3& v, const tcu::Vec3& projection, float wx, float wy, float width, float height)
{
// Exact derivatives.
float dudx = triDerivateX(u, projection, wx, width, wy/height);
float dvdx = triDerivateX(v, projection, wx, width, wy/height);
float dudy = triDerivateY(u, projection, wy, height, wx/width);
float dvdy = triDerivateY(v, projection, wy, height, wx/width);
return computeLodFromDerivates(mode, dudx, dvdx, dudy, dvdy);
}
// 3D lookup LOD.
static float computeProjectedTriLod (LodMode mode, const tcu::Vec3& u, const tcu::Vec3& v, const tcu::Vec3& w, const tcu::Vec3& projection, float wx, float wy, float width, float height)
{
// Exact derivatives.
float dudx = triDerivateX(u, projection, wx, width, wy/height);
float dvdx = triDerivateX(v, projection, wx, width, wy/height);
float dwdx = triDerivateX(w, projection, wx, width, wy/height);
float dudy = triDerivateY(u, projection, wy, height, wx/width);
float dvdy = triDerivateY(v, projection, wy, height, wx/width);
float dwdy = triDerivateY(w, projection, wy, height, wx/width);
return computeLodFromDerivates(mode, dudx, dvdx, dwdx, dudy, dvdy, dwdy);
}
static inline tcu::Vec4 execSample (const tcu::Texture1DView& src, const ReferenceParams& params, float s, float lod)
{
if (params.samplerType == SAMPLERTYPE_SHADOW)
return tcu::Vec4(src.sampleCompare(params.sampler, params.ref, s, lod), 0.0, 0.0, 1.0f);
else
return src.sample(params.sampler, s, lod);
}
static inline tcu::Vec4 execSample (const tcu::Texture2DView& src, const ReferenceParams& params, float s, float t, float lod)
{
if (params.samplerType == SAMPLERTYPE_SHADOW)
return tcu::Vec4(src.sampleCompare(params.sampler, params.ref, s, t, lod), 0.0, 0.0, 1.0f);
else
return src.sample(params.sampler, s, t, lod);
}
static inline tcu::Vec4 execSample (const tcu::TextureCubeView& src, const ReferenceParams& params, float s, float t, float r, float lod)
{
if (params.samplerType == SAMPLERTYPE_SHADOW)
return tcu::Vec4(src.sampleCompare(params.sampler, params.ref, s, t, r, lod), 0.0, 0.0, 1.0f);
else
return src.sample(params.sampler, s, t, r, lod);
}
static inline tcu::Vec4 execSample (const tcu::Texture2DArrayView& src, const ReferenceParams& params, float s, float t, float r, float lod)
{
if (params.samplerType == SAMPLERTYPE_SHADOW)
return tcu::Vec4(src.sampleCompare(params.sampler, params.ref, s, t, r, lod), 0.0, 0.0, 1.0f);
else
return src.sample(params.sampler, s, t, r, lod);
}
static inline tcu::Vec4 execSample (const tcu::TextureCubeArrayView& src, const ReferenceParams& params, float s, float t, float r, float q, float lod)
{
if (params.samplerType == SAMPLERTYPE_SHADOW)
return tcu::Vec4(src.sampleCompare(params.sampler, params.ref, s, t, r, q, lod), 0.0, 0.0, 1.0f);
else
return src.sample(params.sampler, s, t, r, q, lod);
}
static inline tcu::Vec4 execSample (const tcu::Texture1DArrayView& src, const ReferenceParams& params, float s, float t, float lod)
{
if (params.samplerType == SAMPLERTYPE_SHADOW)
return tcu::Vec4(src.sampleCompare(params.sampler, params.ref, s, t, lod), 0.0, 0.0, 1.0f);
else
return src.sample(params.sampler, s, t, lod);
}
static void sampleTextureNonProjected (const SurfaceAccess& dst, const tcu::Texture1DView& src, const tcu::Vec4& sq, const ReferenceParams& params)
{
float lodBias = (params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f;
tcu::IVec2 dstSize = tcu::IVec2(dst.getWidth(), dst.getHeight());
int srcSize = src.getWidth();
// Coordinates and lod per triangle.
tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
float triLod[2] = { de::clamp(computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[0]) + lodBias, params.minLod, params.maxLod),
de::clamp(computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[1]) + lodBias, params.minLod, params.maxLod) };
for (int y = 0; y < dst.getHeight(); y++)
{
for (int x = 0; x < dst.getWidth(); x++)
{
float yf = ((float)y + 0.5f) / (float)dst.getHeight();
float xf = ((float)x + 0.5f) / (float)dst.getWidth();
int triNdx = xf + yf >= 1.0f ? 1 : 0; // Top left fill rule.
float triX = triNdx ? 1.0f-xf : xf;
float triY = triNdx ? 1.0f-yf : yf;
float s = triangleInterpolate(triS[triNdx].x(), triS[triNdx].y(), triS[triNdx].z(), triX, triY);
float lod = triLod[triNdx];
dst.setPixel(execSample(src, params, s, lod) * params.colorScale + params.colorBias, x, y);
}
}
}
static void sampleTextureNonProjected (const SurfaceAccess& dst, const tcu::Texture2DView& src, const tcu::Vec4& sq, const tcu::Vec4& tq, const ReferenceParams& params)
{
float lodBias = (params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f;
tcu::IVec2 dstSize = tcu::IVec2(dst.getWidth(), dst.getHeight());
tcu::IVec2 srcSize = tcu::IVec2(src.getWidth(), src.getHeight());
// Coordinates and lod per triangle.
tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
float triLod[2] = { de::clamp(computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[0], triT[0]) + lodBias, params.minLod, params.maxLod),
de::clamp(computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[1], triT[1]) + lodBias, params.minLod, params.maxLod) };
for (int y = 0; y < dst.getHeight(); y++)
{
for (int x = 0; x < dst.getWidth(); x++)
{
float yf = ((float)y + 0.5f) / (float)dst.getHeight();
float xf = ((float)x + 0.5f) / (float)dst.getWidth();
int triNdx = xf + yf >= 1.0f ? 1 : 0; // Top left fill rule.
float triX = triNdx ? 1.0f-xf : xf;
float triY = triNdx ? 1.0f-yf : yf;
float s = triangleInterpolate(triS[triNdx].x(), triS[triNdx].y(), triS[triNdx].z(), triX, triY);
float t = triangleInterpolate(triT[triNdx].x(), triT[triNdx].y(), triT[triNdx].z(), triX, triY);
float lod = triLod[triNdx];
dst.setPixel(execSample(src, params, s, t, lod) * params.colorScale + params.colorBias, x, y);
}
}
}
static void sampleTextureProjected (const SurfaceAccess& dst, const tcu::Texture1DView& src, const tcu::Vec4& sq, const ReferenceParams& params)
{
float lodBias = (params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f;
float dstW = (float)dst.getWidth();
float dstH = (float)dst.getHeight();
tcu::Vec4 uq = sq * (float)src.getWidth();
tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
tcu::Vec3 triU[2] = { uq.swizzle(0, 1, 2), uq.swizzle(3, 2, 1) };
tcu::Vec3 triW[2] = { params.w.swizzle(0, 1, 2), params.w.swizzle(3, 2, 1) };
for (int py = 0; py < dst.getHeight(); py++)
{
for (int px = 0; px < dst.getWidth(); px++)
{
float wx = (float)px + 0.5f;
float wy = (float)py + 0.5f;
float nx = wx / dstW;
float ny = wy / dstH;
int triNdx = nx + ny >= 1.0f ? 1 : 0;
float triWx = triNdx ? dstW - wx : wx;
float triWy = triNdx ? dstH - wy : wy;
float triNx = triNdx ? 1.0f - nx : nx;
float triNy = triNdx ? 1.0f - ny : ny;
float s = projectedTriInterpolate(triS[triNdx], triW[triNdx], triNx, triNy);
float lod = computeProjectedTriLod(params.lodMode, triU[triNdx], triW[triNdx], triWx, triWy, (float)dst.getWidth(), (float)dst.getHeight())
+ lodBias;
dst.setPixel(execSample(src, params, s, lod) * params.colorScale + params.colorBias, px, py);
}
}
}
static void sampleTextureProjected (const SurfaceAccess& dst, const tcu::Texture2DView& src, const tcu::Vec4& sq, const tcu::Vec4& tq, const ReferenceParams& params)
{
float lodBias = (params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f;
float dstW = (float)dst.getWidth();
float dstH = (float)dst.getHeight();
tcu::Vec4 uq = sq * (float)src.getWidth();
tcu::Vec4 vq = tq * (float)src.getHeight();
tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
tcu::Vec3 triU[2] = { uq.swizzle(0, 1, 2), uq.swizzle(3, 2, 1) };
tcu::Vec3 triV[2] = { vq.swizzle(0, 1, 2), vq.swizzle(3, 2, 1) };
tcu::Vec3 triW[2] = { params.w.swizzle(0, 1, 2), params.w.swizzle(3, 2, 1) };
for (int py = 0; py < dst.getHeight(); py++)
{
for (int px = 0; px < dst.getWidth(); px++)
{
float wx = (float)px + 0.5f;
float wy = (float)py + 0.5f;
float nx = wx / dstW;
float ny = wy / dstH;
int triNdx = nx + ny >= 1.0f ? 1 : 0;
float triWx = triNdx ? dstW - wx : wx;
float triWy = triNdx ? dstH - wy : wy;
float triNx = triNdx ? 1.0f - nx : nx;
float triNy = triNdx ? 1.0f - ny : ny;
float s = projectedTriInterpolate(triS[triNdx], triW[triNdx], triNx, triNy);
float t = projectedTriInterpolate(triT[triNdx], triW[triNdx], triNx, triNy);
float lod = computeProjectedTriLod(params.lodMode, triU[triNdx], triV[triNdx], triW[triNdx], triWx, triWy, (float)dst.getWidth(), (float)dst.getHeight())
+ lodBias;
dst.setPixel(execSample(src, params, s, t, lod) * params.colorScale + params.colorBias, px, py);
}
}
}
void sampleTexture (const SurfaceAccess& dst, const tcu::Texture2DView& src, const float* texCoord, const ReferenceParams& params)
{
const tcu::Texture2DView view = getSubView(src, params.baseLevel, params.maxLevel);
const tcu::Vec4 sq = tcu::Vec4(texCoord[0+0], texCoord[2+0], texCoord[4+0], texCoord[6+0]);
const tcu::Vec4 tq = tcu::Vec4(texCoord[0+1], texCoord[2+1], texCoord[4+1], texCoord[6+1]);
if (params.flags & ReferenceParams::PROJECTED)
sampleTextureProjected(dst, view, sq, tq, params);
else
sampleTextureNonProjected(dst, view, sq, tq, params);
}
void sampleTexture (const SurfaceAccess& dst, const tcu::Texture1DView& src, const float* texCoord, const ReferenceParams& params)
{
const tcu::Texture1DView view = getSubView(src, params.baseLevel, params.maxLevel);
const tcu::Vec4 sq = tcu::Vec4(texCoord[0], texCoord[1], texCoord[2], texCoord[3]);
if (params.flags & ReferenceParams::PROJECTED)
sampleTextureProjected(dst, view, sq, params);
else
sampleTextureNonProjected(dst, view, sq, params);
}
static float computeCubeLodFromDerivates (LodMode lodMode, const tcu::Vec3& coord, const tcu::Vec3& coordDx, const tcu::Vec3& coordDy, const int faceSize)
{
const tcu::CubeFace face = tcu::selectCubeFace(coord);
int maNdx = 0;
int sNdx = 0;
int tNdx = 0;
// \note Derivate signs don't matter when computing lod
switch (face)
{
case tcu::CUBEFACE_NEGATIVE_X:
case tcu::CUBEFACE_POSITIVE_X: maNdx = 0; sNdx = 2; tNdx = 1; break;
case tcu::CUBEFACE_NEGATIVE_Y:
case tcu::CUBEFACE_POSITIVE_Y: maNdx = 1; sNdx = 0; tNdx = 2; break;
case tcu::CUBEFACE_NEGATIVE_Z:
case tcu::CUBEFACE_POSITIVE_Z: maNdx = 2; sNdx = 0; tNdx = 1; break;
default:
DE_ASSERT(DE_FALSE);
}
{
const float sc = coord[sNdx];
const float tc = coord[tNdx];
const float ma = de::abs(coord[maNdx]);
const float scdx = coordDx[sNdx];
const float tcdx = coordDx[tNdx];
const float madx = de::abs(coordDx[maNdx]);
const float scdy = coordDy[sNdx];
const float tcdy = coordDy[tNdx];
const float mady = de::abs(coordDy[maNdx]);
const float dudx = float(faceSize) * 0.5f * (scdx*ma - sc*madx) / (ma*ma);
const float dvdx = float(faceSize) * 0.5f * (tcdx*ma - tc*madx) / (ma*ma);
const float dudy = float(faceSize) * 0.5f * (scdy*ma - sc*mady) / (ma*ma);
const float dvdy = float(faceSize) * 0.5f * (tcdy*ma - tc*mady) / (ma*ma);
return computeLodFromDerivates(lodMode, dudx, dvdx, dudy, dvdy);
}
}
static void sampleTexture (const SurfaceAccess& dst, const tcu::TextureCubeView& src, const tcu::Vec4& sq, const tcu::Vec4& tq, const tcu::Vec4& rq, const ReferenceParams& params)
{
const tcu::IVec2 dstSize = tcu::IVec2(dst.getWidth(), dst.getHeight());
const float dstW = float(dstSize.x());
const float dstH = float(dstSize.y());
const int srcSize = src.getSize();
// Coordinates per triangle.
const tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
const tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
const tcu::Vec3 triR[2] = { rq.swizzle(0, 1, 2), rq.swizzle(3, 2, 1) };
const tcu::Vec3 triW[2] = { params.w.swizzle(0, 1, 2), params.w.swizzle(3, 2, 1) };
const float lodBias ((params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f);
for (int py = 0; py < dst.getHeight(); py++)
{
for (int px = 0; px < dst.getWidth(); px++)
{
const float wx = (float)px + 0.5f;
const float wy = (float)py + 0.5f;
const float nx = wx / dstW;
const float ny = wy / dstH;
const int triNdx = nx + ny >= 1.0f ? 1 : 0;
const float triNx = triNdx ? 1.0f - nx : nx;
const float triNy = triNdx ? 1.0f - ny : ny;
const tcu::Vec3 coord (triangleInterpolate(triS[triNdx], triNx, triNy),
triangleInterpolate(triT[triNdx], triNx, triNy),
triangleInterpolate(triR[triNdx], triNx, triNy));
const tcu::Vec3 coordDx (triDerivateX(triS[triNdx], triW[triNdx], wx, dstW, triNy),
triDerivateX(triT[triNdx], triW[triNdx], wx, dstW, triNy),
triDerivateX(triR[triNdx], triW[triNdx], wx, dstW, triNy));
const tcu::Vec3 coordDy (triDerivateY(triS[triNdx], triW[triNdx], wy, dstH, triNx),
triDerivateY(triT[triNdx], triW[triNdx], wy, dstH, triNx),
triDerivateY(triR[triNdx], triW[triNdx], wy, dstH, triNx));
const float lod = de::clamp(computeCubeLodFromDerivates(params.lodMode, coord, coordDx, coordDy, srcSize) + lodBias, params.minLod, params.maxLod);
dst.setPixel(execSample(src, params, coord.x(), coord.y(), coord.z(), lod) * params.colorScale + params.colorBias, px, py);
}
}
}
void sampleTexture (const SurfaceAccess& dst, const tcu::TextureCubeView& src, const float* texCoord, const ReferenceParams& params)
{
const tcu::TextureCubeView view = getSubView(src, params.baseLevel, params.maxLevel);
const tcu::Vec4 sq = tcu::Vec4(texCoord[0+0], texCoord[3+0], texCoord[6+0], texCoord[9+0]);
const tcu::Vec4 tq = tcu::Vec4(texCoord[0+1], texCoord[3+1], texCoord[6+1], texCoord[9+1]);
const tcu::Vec4 rq = tcu::Vec4(texCoord[0+2], texCoord[3+2], texCoord[6+2], texCoord[9+2]);
return sampleTexture(dst, view, sq, tq, rq, params);
}
static void sampleTextureNonProjected (const SurfaceAccess& dst, const tcu::Texture2DArrayView& src, const tcu::Vec4& sq, const tcu::Vec4& tq, const tcu::Vec4& rq, const ReferenceParams& params)
{
float lodBias = (params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f;
tcu::IVec2 dstSize = tcu::IVec2(dst.getWidth(), dst.getHeight());
tcu::IVec2 srcSize = tcu::IVec2(src.getWidth(), src.getHeight());
// Coordinates and lod per triangle.
tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
tcu::Vec3 triR[2] = { rq.swizzle(0, 1, 2), rq.swizzle(3, 2, 1) };
float triLod[2] = { computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[0], triT[0]) + lodBias,
computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[1], triT[1]) + lodBias};
for (int y = 0; y < dst.getHeight(); y++)
{
for (int x = 0; x < dst.getWidth(); x++)
{
float yf = ((float)y + 0.5f) / (float)dst.getHeight();
float xf = ((float)x + 0.5f) / (float)dst.getWidth();
int triNdx = xf + yf >= 1.0f ? 1 : 0; // Top left fill rule.
float triX = triNdx ? 1.0f-xf : xf;
float triY = triNdx ? 1.0f-yf : yf;
float s = triangleInterpolate(triS[triNdx].x(), triS[triNdx].y(), triS[triNdx].z(), triX, triY);
float t = triangleInterpolate(triT[triNdx].x(), triT[triNdx].y(), triT[triNdx].z(), triX, triY);
float r = triangleInterpolate(triR[triNdx].x(), triR[triNdx].y(), triR[triNdx].z(), triX, triY);
float lod = triLod[triNdx];
dst.setPixel(execSample(src, params, s, t, r, lod) * params.colorScale + params.colorBias, x, y);
}
}
}
void sampleTexture (const SurfaceAccess& dst, const tcu::Texture2DArrayView& src, const float* texCoord, const ReferenceParams& params)
{
tcu::Vec4 sq = tcu::Vec4(texCoord[0+0], texCoord[3+0], texCoord[6+0], texCoord[9+0]);
tcu::Vec4 tq = tcu::Vec4(texCoord[0+1], texCoord[3+1], texCoord[6+1], texCoord[9+1]);
tcu::Vec4 rq = tcu::Vec4(texCoord[0+2], texCoord[3+2], texCoord[6+2], texCoord[9+2]);
DE_ASSERT(!(params.flags & ReferenceParams::PROJECTED)); // \todo [2012-02-17 pyry] Support projected lookups.
sampleTextureNonProjected(dst, src, sq, tq, rq, params);
}
static void sampleTextureNonProjected (const SurfaceAccess& dst, const tcu::Texture1DArrayView& src, const tcu::Vec4& sq, const tcu::Vec4& tq, const ReferenceParams& params)
{
float lodBias = (params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f;
tcu::IVec2 dstSize = tcu::IVec2(dst.getWidth(), dst.getHeight());
deInt32 srcSize = src.getWidth();
// Coordinates and lod per triangle.
tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
float triLod[2] = { computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[0]) + lodBias,
computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[1]) + lodBias};
for (int y = 0; y < dst.getHeight(); y++)
{
for (int x = 0; x < dst.getWidth(); x++)
{
float yf = ((float)y + 0.5f) / (float)dst.getHeight();
float xf = ((float)x + 0.5f) / (float)dst.getWidth();
int triNdx = xf + yf >= 1.0f ? 1 : 0; // Top left fill rule.
float triX = triNdx ? 1.0f-xf : xf;
float triY = triNdx ? 1.0f-yf : yf;
float s = triangleInterpolate(triS[triNdx].x(), triS[triNdx].y(), triS[triNdx].z(), triX, triY);
float t = triangleInterpolate(triT[triNdx].x(), triT[triNdx].y(), triT[triNdx].z(), triX, triY);
float lod = triLod[triNdx];
dst.setPixel(execSample(src, params, s, t, lod) * params.colorScale + params.colorBias, x, y);
}
}
}
void sampleTexture (const SurfaceAccess& dst, const tcu::Texture1DArrayView& src, const float* texCoord, const ReferenceParams& params)
{
tcu::Vec4 sq = tcu::Vec4(texCoord[0+0], texCoord[2+0], texCoord[4+0], texCoord[6+0]);
tcu::Vec4 tq = tcu::Vec4(texCoord[0+1], texCoord[2+1], texCoord[4+1], texCoord[6+1]);
DE_ASSERT(!(params.flags & ReferenceParams::PROJECTED)); // \todo [2014-06-09 mika] Support projected lookups.
sampleTextureNonProjected(dst, src, sq, tq, params);
}
static void sampleTextureNonProjected (const SurfaceAccess& dst, const tcu::Texture3DView& src, const tcu::Vec4& sq, const tcu::Vec4& tq, const tcu::Vec4& rq, const ReferenceParams& params)
{
float lodBias = (params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f;
tcu::IVec2 dstSize = tcu::IVec2(dst.getWidth(), dst.getHeight());
tcu::IVec3 srcSize = tcu::IVec3(src.getWidth(), src.getHeight(), src.getDepth());
// Coordinates and lod per triangle.
tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
tcu::Vec3 triR[2] = { rq.swizzle(0, 1, 2), rq.swizzle(3, 2, 1) };
float triLod[2] = { de::clamp(computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[0], triT[0], triR[0]) + lodBias, params.minLod, params.maxLod),
de::clamp(computeNonProjectedTriLod(params.lodMode, dstSize, srcSize, triS[1], triT[1], triR[1]) + lodBias, params.minLod, params.maxLod) };
for (int y = 0; y < dst.getHeight(); y++)
{
for (int x = 0; x < dst.getWidth(); x++)
{
float yf = ((float)y + 0.5f) / (float)dst.getHeight();
float xf = ((float)x + 0.5f) / (float)dst.getWidth();
int triNdx = xf + yf >= 1.0f ? 1 : 0; // Top left fill rule.
float triX = triNdx ? 1.0f-xf : xf;
float triY = triNdx ? 1.0f-yf : yf;
float s = triangleInterpolate(triS[triNdx].x(), triS[triNdx].y(), triS[triNdx].z(), triX, triY);
float t = triangleInterpolate(triT[triNdx].x(), triT[triNdx].y(), triT[triNdx].z(), triX, triY);
float r = triangleInterpolate(triR[triNdx].x(), triR[triNdx].y(), triR[triNdx].z(), triX, triY);
float lod = triLod[triNdx];
dst.setPixel(src.sample(params.sampler, s, t, r, lod) * params.colorScale + params.colorBias, x, y);
}
}
}
static void sampleTextureProjected (const SurfaceAccess& dst, const tcu::Texture3DView& src, const tcu::Vec4& sq, const tcu::Vec4& tq, const tcu::Vec4& rq, const ReferenceParams& params)
{
float lodBias = (params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f;
float dstW = (float)dst.getWidth();
float dstH = (float)dst.getHeight();
tcu::Vec4 uq = sq * (float)src.getWidth();
tcu::Vec4 vq = tq * (float)src.getHeight();
tcu::Vec4 wq = rq * (float)src.getDepth();
tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
tcu::Vec3 triR[2] = { rq.swizzle(0, 1, 2), rq.swizzle(3, 2, 1) };
tcu::Vec3 triU[2] = { uq.swizzle(0, 1, 2), uq.swizzle(3, 2, 1) };
tcu::Vec3 triV[2] = { vq.swizzle(0, 1, 2), vq.swizzle(3, 2, 1) };
tcu::Vec3 triW[2] = { wq.swizzle(0, 1, 2), wq.swizzle(3, 2, 1) };
tcu::Vec3 triP[2] = { params.w.swizzle(0, 1, 2), params.w.swizzle(3, 2, 1) };
for (int py = 0; py < dst.getHeight(); py++)
{
for (int px = 0; px < dst.getWidth(); px++)
{
float wx = (float)px + 0.5f;
float wy = (float)py + 0.5f;
float nx = wx / dstW;
float ny = wy / dstH;
int triNdx = nx + ny >= 1.0f ? 1 : 0;
float triWx = triNdx ? dstW - wx : wx;
float triWy = triNdx ? dstH - wy : wy;
float triNx = triNdx ? 1.0f - nx : nx;
float triNy = triNdx ? 1.0f - ny : ny;
float s = projectedTriInterpolate(triS[triNdx], triP[triNdx], triNx, triNy);
float t = projectedTriInterpolate(triT[triNdx], triP[triNdx], triNx, triNy);
float r = projectedTriInterpolate(triR[triNdx], triP[triNdx], triNx, triNy);
float lod = computeProjectedTriLod(params.lodMode, triU[triNdx], triV[triNdx], triW[triNdx], triP[triNdx], triWx, triWy, (float)dst.getWidth(), (float)dst.getHeight())
+ lodBias;
dst.setPixel(src.sample(params.sampler, s, t, r, lod) * params.colorScale + params.colorBias, px, py);
}
}
}
void sampleTexture (const SurfaceAccess& dst, const tcu::Texture3DView& src, const float* texCoord, const ReferenceParams& params)
{
const tcu::Texture3DView view = getSubView(src, params.baseLevel, params.maxLevel);
const tcu::Vec4 sq = tcu::Vec4(texCoord[0+0], texCoord[3+0], texCoord[6+0], texCoord[9+0]);
const tcu::Vec4 tq = tcu::Vec4(texCoord[0+1], texCoord[3+1], texCoord[6+1], texCoord[9+1]);
const tcu::Vec4 rq = tcu::Vec4(texCoord[0+2], texCoord[3+2], texCoord[6+2], texCoord[9+2]);
if (params.flags & ReferenceParams::PROJECTED)
sampleTextureProjected(dst, view, sq, tq, rq, params);
else
sampleTextureNonProjected(dst, view, sq, tq, rq, params);
}
static void sampleTexture (const SurfaceAccess& dst, const tcu::TextureCubeArrayView& src, const tcu::Vec4& sq, const tcu::Vec4& tq, const tcu::Vec4& rq, const tcu::Vec4& qq, const ReferenceParams& params)
{
const float dstW = (float)dst.getWidth();
const float dstH = (float)dst.getHeight();
// Coordinates per triangle.
tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
tcu::Vec3 triR[2] = { rq.swizzle(0, 1, 2), rq.swizzle(3, 2, 1) };
tcu::Vec3 triQ[2] = { qq.swizzle(0, 1, 2), qq.swizzle(3, 2, 1) };
const tcu::Vec3 triW[2] = { params.w.swizzle(0, 1, 2), params.w.swizzle(3, 2, 1) };
const float lodBias = (params.flags & ReferenceParams::USE_BIAS) ? params.bias : 0.0f;
for (int py = 0; py < dst.getHeight(); py++)
{
for (int px = 0; px < dst.getWidth(); px++)
{
const float wx = (float)px + 0.5f;
const float wy = (float)py + 0.5f;
const float nx = wx / dstW;
const float ny = wy / dstH;
const int triNdx = nx + ny >= 1.0f ? 1 : 0;
const float triNx = triNdx ? 1.0f - nx : nx;
const float triNy = triNdx ? 1.0f - ny : ny;
const tcu::Vec3 coord (triangleInterpolate(triS[triNdx], triNx, triNy),
triangleInterpolate(triT[triNdx], triNx, triNy),
triangleInterpolate(triR[triNdx], triNx, triNy));
const float coordQ = triangleInterpolate(triQ[triNdx], triNx, triNy);
const tcu::Vec3 coordDx (triDerivateX(triS[triNdx], triW[triNdx], wx, dstW, triNy),
triDerivateX(triT[triNdx], triW[triNdx], wx, dstW, triNy),
triDerivateX(triR[triNdx], triW[triNdx], wx, dstW, triNy));
const tcu::Vec3 coordDy (triDerivateY(triS[triNdx], triW[triNdx], wy, dstH, triNx),
triDerivateY(triT[triNdx], triW[triNdx], wy, dstH, triNx),
triDerivateY(triR[triNdx], triW[triNdx], wy, dstH, triNx));
const float lod = de::clamp(computeCubeLodFromDerivates(params.lodMode, coord, coordDx, coordDy, src.getSize()) + lodBias, params.minLod, params.maxLod);
dst.setPixel(execSample(src, params, coord.x(), coord.y(), coord.z(), coordQ, lod) * params.colorScale + params.colorBias, px, py);
}
}
}
void sampleTexture (const SurfaceAccess& dst, const tcu::TextureCubeArrayView& src, const float* texCoord, const ReferenceParams& params)
{
tcu::Vec4 sq = tcu::Vec4(texCoord[0+0], texCoord[4+0], texCoord[8+0], texCoord[12+0]);
tcu::Vec4 tq = tcu::Vec4(texCoord[0+1], texCoord[4+1], texCoord[8+1], texCoord[12+1]);
tcu::Vec4 rq = tcu::Vec4(texCoord[0+2], texCoord[4+2], texCoord[8+2], texCoord[12+2]);
tcu::Vec4 qq = tcu::Vec4(texCoord[0+3], texCoord[4+3], texCoord[8+3], texCoord[12+3]);
sampleTexture(dst, src, sq, tq, rq, qq, params);
}
void fetchTexture (const SurfaceAccess& dst, const tcu::ConstPixelBufferAccess& src, const float* texCoord, const tcu::Vec4& colorScale, const tcu::Vec4& colorBias)
{
const tcu::Vec4 sq = tcu::Vec4(texCoord[0], texCoord[1], texCoord[2], texCoord[3]);
const tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
for (int y = 0; y < dst.getHeight(); y++)
{
for (int x = 0; x < dst.getWidth(); x++)
{
const float yf = ((float)y + 0.5f) / (float)dst.getHeight();
const float xf = ((float)x + 0.5f) / (float)dst.getWidth();
const int triNdx = xf + yf >= 1.0f ? 1 : 0; // Top left fill rule.
const float triX = triNdx ? 1.0f-xf : xf;
const float triY = triNdx ? 1.0f-yf : yf;
const float s = triangleInterpolate(triS[triNdx].x(), triS[triNdx].y(), triS[triNdx].z(), triX, triY);
dst.setPixel(src.getPixel((int)s, 0) * colorScale + colorBias, x, y);
}
}
}
void clear (const SurfaceAccess& dst, const tcu::Vec4& color)
{
for (int y = 0; y < dst.getHeight(); y++)
for (int x = 0; x < dst.getWidth(); x++)
dst.setPixel(color, x, y);
}
bool compareImages (TestLog& log, const tcu::Surface& reference, const tcu::Surface& rendered, tcu::RGBA threshold)
{
return tcu::pixelThresholdCompare(log, "Result", "Image comparison result", reference, rendered, threshold, tcu::COMPARE_LOG_RESULT);
}
bool compareImages (TestLog& log, const char* name, const char* desc, const tcu::Surface& reference, const tcu::Surface& rendered, tcu::RGBA threshold)
{
return tcu::pixelThresholdCompare(log, name, desc, reference, rendered, threshold, tcu::COMPARE_LOG_RESULT);
}
int measureAccuracy (tcu::TestLog& log, const tcu::Surface& reference, const tcu::Surface& rendered, int bestScoreDiff, int worstScoreDiff)
{
return tcu::measurePixelDiffAccuracy(log, "Result", "Image comparison result", reference, rendered, bestScoreDiff, worstScoreDiff, tcu::COMPARE_LOG_EVERYTHING);
}
inline int rangeDiff (int x, int a, int b)
{
if (x < a)
return a-x;
else if (x > b)
return x-b;
else
return 0;
}
inline tcu::RGBA rangeDiff (tcu::RGBA p, tcu::RGBA a, tcu::RGBA b)
{
int rMin = de::min(a.getRed(), b.getRed());
int rMax = de::max(a.getRed(), b.getRed());
int gMin = de::min(a.getGreen(), b.getGreen());
int gMax = de::max(a.getGreen(), b.getGreen());
int bMin = de::min(a.getBlue(), b.getBlue());
int bMax = de::max(a.getBlue(), b.getBlue());
int aMin = de::min(a.getAlpha(), b.getAlpha());
int aMax = de::max(a.getAlpha(), b.getAlpha());
return tcu::RGBA(rangeDiff(p.getRed(), rMin, rMax),
rangeDiff(p.getGreen(), gMin, gMax),
rangeDiff(p.getBlue(), bMin, bMax),
rangeDiff(p.getAlpha(), aMin, aMax));
}
inline bool rangeCompare (tcu::RGBA p, tcu::RGBA a, tcu::RGBA b, tcu::RGBA threshold)
{
tcu::RGBA diff = rangeDiff(p, a, b);
return diff.getRed() <= threshold.getRed() &&
diff.getGreen() <= threshold.getGreen() &&
diff.getBlue() <= threshold.getBlue() &&
diff.getAlpha() <= threshold.getAlpha();
}
RandomViewport::RandomViewport (const tcu::RenderTarget& renderTarget, int preferredWidth, int preferredHeight, deUint32 seed)
: x (0)
, y (0)
, width (deMin32(preferredWidth, renderTarget.getWidth()))
, height (deMin32(preferredHeight, renderTarget.getHeight()))
{
de::Random rnd(seed);
x = rnd.getInt(0, renderTarget.getWidth() - width);
y = rnd.getInt(0, renderTarget.getHeight() - height);
}
ProgramLibrary::ProgramLibrary (const glu::RenderContext& context, tcu::TestLog& log, glu::GLSLVersion glslVersion, glu::Precision texCoordPrecision)
: m_context (context)
, m_log (log)
, m_glslVersion (glslVersion)
, m_texCoordPrecision (texCoordPrecision)
{
}
ProgramLibrary::~ProgramLibrary (void)
{
clear();
}
void ProgramLibrary::clear (void)
{
for (map<Program, glu::ShaderProgram*>::iterator i = m_programs.begin(); i != m_programs.end(); i++)
{
delete i->second;
i->second = DE_NULL;
}
m_programs.clear();
}
glu::ShaderProgram* ProgramLibrary::getProgram (Program program)
{
if (m_programs.find(program) != m_programs.end())
return m_programs[program]; // Return from cache.
static const char* vertShaderTemplate =
"${VTX_HEADER}"
"${VTX_IN} highp vec4 a_position;\n"
"${VTX_IN} ${PRECISION} ${TEXCOORD_TYPE} a_texCoord;\n"
"${VTX_OUT} ${PRECISION} ${TEXCOORD_TYPE} v_texCoord;\n"
"\n"
"void main (void)\n"
"{\n"
" gl_Position = a_position;\n"
" v_texCoord = a_texCoord;\n"
"}\n";
static const char* fragShaderTemplate =
"${FRAG_HEADER}"
"${FRAG_IN} ${PRECISION} ${TEXCOORD_TYPE} v_texCoord;\n"
"uniform ${PRECISION} float u_bias;\n"
"uniform ${PRECISION} float u_ref;\n"
"uniform ${PRECISION} vec4 u_colorScale;\n"
"uniform ${PRECISION} vec4 u_colorBias;\n"
"uniform ${PRECISION} ${SAMPLER_TYPE} u_sampler;\n"
"\n"
"void main (void)\n"
"{\n"
" ${FRAG_COLOR} = ${LOOKUP} * u_colorScale + u_colorBias;\n"
"}\n";
map<string, string> params;
bool isCube = de::inRange<int>(program, PROGRAM_CUBE_FLOAT, PROGRAM_CUBE_SHADOW_BIAS);
bool isArray = de::inRange<int>(program, PROGRAM_2D_ARRAY_FLOAT, PROGRAM_2D_ARRAY_SHADOW)
|| de::inRange<int>(program, PROGRAM_1D_ARRAY_FLOAT, PROGRAM_1D_ARRAY_SHADOW);
bool is1D = de::inRange<int>(program, PROGRAM_1D_FLOAT, PROGRAM_1D_UINT_BIAS)
|| de::inRange<int>(program, PROGRAM_1D_ARRAY_FLOAT, PROGRAM_1D_ARRAY_SHADOW)
|| de::inRange<int>(program, PROGRAM_BUFFER_FLOAT, PROGRAM_BUFFER_UINT);
bool is2D = de::inRange<int>(program, PROGRAM_2D_FLOAT, PROGRAM_2D_UINT_BIAS)
|| de::inRange<int>(program, PROGRAM_2D_ARRAY_FLOAT, PROGRAM_2D_ARRAY_SHADOW);
bool is3D = de::inRange<int>(program, PROGRAM_3D_FLOAT, PROGRAM_3D_UINT_BIAS);
bool isCubeArray = de::inRange<int>(program, PROGRAM_CUBE_ARRAY_FLOAT, PROGRAM_CUBE_ARRAY_SHADOW);
bool isBuffer = de::inRange<int>(program, PROGRAM_BUFFER_FLOAT, PROGRAM_BUFFER_UINT);
if (m_glslVersion == glu::GLSL_VERSION_100_ES)
{
params["FRAG_HEADER"] = "";
params["VTX_HEADER"] = "";
params["VTX_IN"] = "attribute";
params["VTX_OUT"] = "varying";
params["FRAG_IN"] = "varying";
params["FRAG_COLOR"] = "gl_FragColor";
}
else if (m_glslVersion == glu::GLSL_VERSION_300_ES || m_glslVersion == glu::GLSL_VERSION_310_ES || m_glslVersion == glu::GLSL_VERSION_330)
{
const string version = glu::getGLSLVersionDeclaration(m_glslVersion);
const char* ext = DE_NULL;
if (isCubeArray && glu::glslVersionIsES(m_glslVersion))
ext = "GL_EXT_texture_cube_map_array";
else if (isBuffer && glu::glslVersionIsES(m_glslVersion))
ext = "GL_EXT_texture_buffer";
params["FRAG_HEADER"] = version + (ext ? string("\n#extension ") + ext + " : require" : string()) + "\nlayout(location = 0) out mediump vec4 dEQP_FragColor;\n";
params["VTX_HEADER"] = version + "\n";
params["VTX_IN"] = "in";
params["VTX_OUT"] = "out";
params["FRAG_IN"] = "in";
params["FRAG_COLOR"] = "dEQP_FragColor";
}
else
DE_ASSERT(!"Unsupported version");
params["PRECISION"] = glu::getPrecisionName(m_texCoordPrecision);
if (isCubeArray)
params["TEXCOORD_TYPE"] = "vec4";
else if (isCube || (is2D && isArray) || is3D)
params["TEXCOORD_TYPE"] = "vec3";
else if ((is1D && isArray) || is2D)
params["TEXCOORD_TYPE"] = "vec2";
else if (is1D)
params["TEXCOORD_TYPE"] = "float";
else
DE_ASSERT(DE_FALSE);
const char* sampler = DE_NULL;
const char* lookup = DE_NULL;
if (m_glslVersion == glu::GLSL_VERSION_300_ES || m_glslVersion == glu::GLSL_VERSION_310_ES || m_glslVersion == glu::GLSL_VERSION_330)
{
switch (program)
{
case PROGRAM_2D_FLOAT: sampler = "sampler2D"; lookup = "texture(u_sampler, v_texCoord)"; break;
case PROGRAM_2D_INT: sampler = "isampler2D"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_2D_UINT: sampler = "usampler2D"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_2D_SHADOW: sampler = "sampler2DShadow"; lookup = "vec4(texture(u_sampler, vec3(v_texCoord, u_ref)), 0.0, 0.0, 1.0)"; break;
case PROGRAM_2D_FLOAT_BIAS: sampler = "sampler2D"; lookup = "texture(u_sampler, v_texCoord, u_bias)"; break;
case PROGRAM_2D_INT_BIAS: sampler = "isampler2D"; lookup = "vec4(texture(u_sampler, v_texCoord, u_bias))"; break;
case PROGRAM_2D_UINT_BIAS: sampler = "usampler2D"; lookup = "vec4(texture(u_sampler, v_texCoord, u_bias))"; break;
case PROGRAM_2D_SHADOW_BIAS: sampler = "sampler2DShadow"; lookup = "vec4(texture(u_sampler, vec3(v_texCoord, u_ref), u_bias), 0.0, 0.0, 1.0)"; break;
case PROGRAM_1D_FLOAT: sampler = "sampler1D"; lookup = "texture(u_sampler, v_texCoord)"; break;
case PROGRAM_1D_INT: sampler = "isampler1D"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_1D_UINT: sampler = "usampler1D"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_1D_SHADOW: sampler = "sampler1DShadow"; lookup = "vec4(texture(u_sampler, vec3(v_texCoord, u_ref)), 0.0, 0.0, 1.0)"; break;
case PROGRAM_1D_FLOAT_BIAS: sampler = "sampler1D"; lookup = "texture(u_sampler, v_texCoord, u_bias)"; break;
case PROGRAM_1D_INT_BIAS: sampler = "isampler1D"; lookup = "vec4(texture(u_sampler, v_texCoord, u_bias))"; break;
case PROGRAM_1D_UINT_BIAS: sampler = "usampler1D"; lookup = "vec4(texture(u_sampler, v_texCoord, u_bias))"; break;
case PROGRAM_1D_SHADOW_BIAS: sampler = "sampler1DShadow"; lookup = "vec4(texture(u_sampler, vec3(v_texCoord, u_ref), u_bias), 0.0, 0.0, 1.0)"; break;
case PROGRAM_CUBE_FLOAT: sampler = "samplerCube"; lookup = "texture(u_sampler, v_texCoord)"; break;
case PROGRAM_CUBE_INT: sampler = "isamplerCube"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_CUBE_UINT: sampler = "usamplerCube"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_CUBE_SHADOW: sampler = "samplerCubeShadow"; lookup = "vec4(texture(u_sampler, vec4(v_texCoord, u_ref)), 0.0, 0.0, 1.0)"; break;
case PROGRAM_CUBE_FLOAT_BIAS: sampler = "samplerCube"; lookup = "texture(u_sampler, v_texCoord, u_bias)"; break;
case PROGRAM_CUBE_INT_BIAS: sampler = "isamplerCube"; lookup = "vec4(texture(u_sampler, v_texCoord, u_bias))"; break;
case PROGRAM_CUBE_UINT_BIAS: sampler = "usamplerCube"; lookup = "vec4(texture(u_sampler, v_texCoord, u_bias))"; break;
case PROGRAM_CUBE_SHADOW_BIAS: sampler = "samplerCubeShadow"; lookup = "vec4(texture(u_sampler, vec4(v_texCoord, u_ref), u_bias), 0.0, 0.0, 1.0)"; break;
case PROGRAM_2D_ARRAY_FLOAT: sampler = "sampler2DArray"; lookup = "texture(u_sampler, v_texCoord)"; break;
case PROGRAM_2D_ARRAY_INT: sampler = "isampler2DArray"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_2D_ARRAY_UINT: sampler = "usampler2DArray"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_2D_ARRAY_SHADOW: sampler = "sampler2DArrayShadow"; lookup = "vec4(texture(u_sampler, vec4(v_texCoord, u_ref)), 0.0, 0.0, 1.0)"; break;
case PROGRAM_3D_FLOAT: sampler = "sampler3D"; lookup = "texture(u_sampler, v_texCoord)"; break;
case PROGRAM_3D_INT: sampler = "isampler3D"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_3D_UINT: sampler = "usampler3D"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_3D_FLOAT_BIAS: sampler = "sampler3D"; lookup = "texture(u_sampler, v_texCoord, u_bias)"; break;
case PROGRAM_3D_INT_BIAS: sampler = "isampler3D"; lookup = "vec4(texture(u_sampler, v_texCoord, u_bias))"; break;
case PROGRAM_3D_UINT_BIAS: sampler = "usampler3D"; lookup = "vec4(texture(u_sampler, v_texCoord, u_bias))"; break;
case PROGRAM_CUBE_ARRAY_FLOAT: sampler = "samplerCubeArray"; lookup = "texture(u_sampler, v_texCoord)"; break;
case PROGRAM_CUBE_ARRAY_INT: sampler = "isamplerCubeArray"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_CUBE_ARRAY_UINT: sampler = "usamplerCubeArray"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_CUBE_ARRAY_SHADOW: sampler = "samplerCubeArrayShadow"; lookup = "vec4(texture(u_sampler, vec4(v_texCoord, u_ref)), 0.0, 0.0, 1.0)"; break;
case PROGRAM_1D_ARRAY_FLOAT: sampler = "sampler1DArray"; lookup = "texture(u_sampler, v_texCoord)"; break;
case PROGRAM_1D_ARRAY_INT: sampler = "isampler1DArray"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_1D_ARRAY_UINT: sampler = "usampler1DArray"; lookup = "vec4(texture(u_sampler, v_texCoord))"; break;
case PROGRAM_1D_ARRAY_SHADOW: sampler = "sampler1DArrayShadow"; lookup = "vec4(texture(u_sampler, vec4(v_texCoord, u_ref)), 0.0, 0.0, 1.0)"; break;
case PROGRAM_BUFFER_FLOAT: sampler = "samplerBuffer"; lookup = "texelFetch(u_sampler, int(v_texCoord))"; break;
case PROGRAM_BUFFER_INT: sampler = "isamplerBuffer"; lookup = "vec4(texelFetch(u_sampler, int(v_texCoord)))"; break;
case PROGRAM_BUFFER_UINT: sampler = "usamplerBuffer"; lookup = "vec4(texelFetch(u_sampler, int(v_texCoord)))"; break;
default:
DE_ASSERT(false);
}
}
else if (m_glslVersion == glu::GLSL_VERSION_100_ES)
{
sampler = isCube ? "samplerCube" : "sampler2D";
switch (program)
{
case PROGRAM_2D_FLOAT: lookup = "texture2D(u_sampler, v_texCoord)"; break;
case PROGRAM_2D_FLOAT_BIAS: lookup = "texture2D(u_sampler, v_texCoord, u_bias)"; break;
case PROGRAM_CUBE_FLOAT: lookup = "textureCube(u_sampler, v_texCoord)"; break;
case PROGRAM_CUBE_FLOAT_BIAS: lookup = "textureCube(u_sampler, v_texCoord, u_bias)"; break;
default:
DE_ASSERT(false);
}
}
else
DE_ASSERT(!"Unsupported version");
params["SAMPLER_TYPE"] = sampler;
params["LOOKUP"] = lookup;
std::string vertSrc = tcu::StringTemplate(vertShaderTemplate).specialize(params);
std::string fragSrc = tcu::StringTemplate(fragShaderTemplate).specialize(params);
glu::ShaderProgram* progObj = new glu::ShaderProgram(m_context, glu::makeVtxFragSources(vertSrc, fragSrc));
if (!progObj->isOk())
{
m_log << *progObj;
delete progObj;
TCU_FAIL("Failed to compile shader program");
}
try
{
m_programs[program] = progObj;
}
catch (...)
{
delete progObj;
throw;
}
return progObj;
}
TextureRenderer::TextureRenderer (const glu::RenderContext& context, tcu::TestLog& log, glu::GLSLVersion glslVersion, glu::Precision texCoordPrecision)
: m_renderCtx (context)
, m_log (log)
, m_programLibrary (context, log, glslVersion, texCoordPrecision)
{
}
TextureRenderer::~TextureRenderer (void)
{
clear();
}
void TextureRenderer::clear (void)
{
m_programLibrary.clear();
}
void TextureRenderer::renderQuad (int texUnit, const float* texCoord, TextureType texType)
{
renderQuad(texUnit, texCoord, RenderParams(texType));
}
void TextureRenderer::renderQuad (int texUnit, const float* texCoord, const RenderParams& params)
{
const glw::Functions& gl = m_renderCtx.getFunctions();
tcu::Vec4 wCoord = params.flags & RenderParams::PROJECTED ? params.w : tcu::Vec4(1.0f);
bool useBias = !!(params.flags & RenderParams::USE_BIAS);
bool logUniforms = !!(params.flags & RenderParams::LOG_UNIFORMS);
// Render quad with texture.
float position[] =
{
-1.0f*wCoord.x(), -1.0f*wCoord.x(), 0.0f, wCoord.x(),
-1.0f*wCoord.y(), +1.0f*wCoord.y(), 0.0f, wCoord.y(),
+1.0f*wCoord.z(), -1.0f*wCoord.z(), 0.0f, wCoord.z(),
+1.0f*wCoord.w(), +1.0f*wCoord.w(), 0.0f, wCoord.w()
};
static const deUint16 indices[] = { 0, 1, 2, 2, 1, 3 };
Program progSpec = PROGRAM_LAST;
int numComps = 0;
if (params.texType == TEXTURETYPE_2D)
{
numComps = 2;
switch (params.samplerType)
{
case SAMPLERTYPE_FLOAT: progSpec = useBias ? PROGRAM_2D_FLOAT_BIAS : PROGRAM_2D_FLOAT; break;
case SAMPLERTYPE_INT: progSpec = useBias ? PROGRAM_2D_INT_BIAS : PROGRAM_2D_INT; break;
case SAMPLERTYPE_UINT: progSpec = useBias ? PROGRAM_2D_UINT_BIAS : PROGRAM_2D_UINT; break;
case SAMPLERTYPE_SHADOW: progSpec = useBias ? PROGRAM_2D_SHADOW_BIAS : PROGRAM_2D_SHADOW; break;
default: DE_ASSERT(false);
}
}
else if (params.texType == TEXTURETYPE_1D)
{
numComps = 1;
switch (params.samplerType)
{
case SAMPLERTYPE_FLOAT: progSpec = useBias ? PROGRAM_1D_FLOAT_BIAS : PROGRAM_1D_FLOAT; break;
case SAMPLERTYPE_INT: progSpec = useBias ? PROGRAM_1D_INT_BIAS : PROGRAM_1D_INT; break;
case SAMPLERTYPE_UINT: progSpec = useBias ? PROGRAM_1D_UINT_BIAS : PROGRAM_1D_UINT; break;
case SAMPLERTYPE_SHADOW: progSpec = useBias ? PROGRAM_1D_SHADOW_BIAS : PROGRAM_1D_SHADOW; break;
default: DE_ASSERT(false);
}
}
else if (params.texType == TEXTURETYPE_CUBE)
{
numComps = 3;
switch (params.samplerType)
{
case SAMPLERTYPE_FLOAT: progSpec = useBias ? PROGRAM_CUBE_FLOAT_BIAS : PROGRAM_CUBE_FLOAT; break;
case SAMPLERTYPE_INT: progSpec = useBias ? PROGRAM_CUBE_INT_BIAS : PROGRAM_CUBE_INT; break;
case SAMPLERTYPE_UINT: progSpec = useBias ? PROGRAM_CUBE_UINT_BIAS : PROGRAM_CUBE_UINT; break;
case SAMPLERTYPE_SHADOW: progSpec = useBias ? PROGRAM_CUBE_SHADOW_BIAS : PROGRAM_CUBE_SHADOW; break;
default: DE_ASSERT(false);
}
}
else if (params.texType == TEXTURETYPE_3D)
{
numComps = 3;
switch (params.samplerType)
{
case SAMPLERTYPE_FLOAT: progSpec = useBias ? PROGRAM_3D_FLOAT_BIAS : PROGRAM_3D_FLOAT; break;
case SAMPLERTYPE_INT: progSpec = useBias ? PROGRAM_3D_INT_BIAS : PROGRAM_3D_INT; break;
case SAMPLERTYPE_UINT: progSpec = useBias ? PROGRAM_3D_UINT_BIAS : PROGRAM_3D_UINT; break;
default: DE_ASSERT(false);
}
}
else if (params.texType == TEXTURETYPE_2D_ARRAY)
{
DE_ASSERT(!useBias); // \todo [2012-02-17 pyry] Support bias.
numComps = 3;
switch (params.samplerType)
{
case SAMPLERTYPE_FLOAT: progSpec = PROGRAM_2D_ARRAY_FLOAT; break;
case SAMPLERTYPE_INT: progSpec = PROGRAM_2D_ARRAY_INT; break;
case SAMPLERTYPE_UINT: progSpec = PROGRAM_2D_ARRAY_UINT; break;
case SAMPLERTYPE_SHADOW: progSpec = PROGRAM_2D_ARRAY_SHADOW; break;
default: DE_ASSERT(false);
}
}
else if (params.texType == TEXTURETYPE_CUBE_ARRAY)
{
DE_ASSERT(!useBias);
numComps = 4;
switch (params.samplerType)
{
case SAMPLERTYPE_FLOAT: progSpec = PROGRAM_CUBE_ARRAY_FLOAT; break;
case SAMPLERTYPE_INT: progSpec = PROGRAM_CUBE_ARRAY_INT; break;
case SAMPLERTYPE_UINT: progSpec = PROGRAM_CUBE_ARRAY_UINT; break;
case SAMPLERTYPE_SHADOW: progSpec = PROGRAM_CUBE_ARRAY_SHADOW; break;
default: DE_ASSERT(false);
}
}
else if (params.texType == TEXTURETYPE_1D_ARRAY)
{
DE_ASSERT(!useBias); // \todo [2012-02-17 pyry] Support bias.
numComps = 2;
switch (params.samplerType)
{
case SAMPLERTYPE_FLOAT: progSpec = PROGRAM_1D_ARRAY_FLOAT; break;
case SAMPLERTYPE_INT: progSpec = PROGRAM_1D_ARRAY_INT; break;
case SAMPLERTYPE_UINT: progSpec = PROGRAM_1D_ARRAY_UINT; break;
case SAMPLERTYPE_SHADOW: progSpec = PROGRAM_1D_ARRAY_SHADOW; break;
default: DE_ASSERT(false);
}
}
else if (params.texType == TEXTURETYPE_BUFFER)
{
numComps = 1;
switch (params.samplerType)
{
case SAMPLERTYPE_FETCH_FLOAT: progSpec = PROGRAM_BUFFER_FLOAT; break;
case SAMPLERTYPE_FETCH_INT: progSpec = PROGRAM_BUFFER_INT; break;
case SAMPLERTYPE_FETCH_UINT: progSpec = PROGRAM_BUFFER_UINT; break;
default: DE_ASSERT(false);
}
}
else
DE_ASSERT(DE_FALSE);
glu::ShaderProgram* program = m_programLibrary.getProgram(progSpec);
// \todo [2012-09-26 pyry] Move to ProgramLibrary and log unique programs only(?)
if (params.flags & RenderParams::LOG_PROGRAMS)
m_log << *program;
GLU_EXPECT_NO_ERROR(gl.getError(), "Set vertex attributes");
// Program and uniforms.
deUint32 prog = program->getProgram();
gl.useProgram(prog);
gl.uniform1i(gl.getUniformLocation(prog, "u_sampler"), texUnit);
if (logUniforms)
m_log << TestLog::Message << "u_sampler = " << texUnit << TestLog::EndMessage;
if (useBias)
{
gl.uniform1f(gl.getUniformLocation(prog, "u_bias"), params.bias);
if (logUniforms)
m_log << TestLog::Message << "u_bias = " << params.bias << TestLog::EndMessage;
}
if (params.samplerType == SAMPLERTYPE_SHADOW)
{
gl.uniform1f(gl.getUniformLocation(prog, "u_ref"), params.ref);
if (logUniforms)
m_log << TestLog::Message << "u_ref = " << params.ref << TestLog::EndMessage;
}
gl.uniform4fv(gl.getUniformLocation(prog, "u_colorScale"), 1, params.colorScale.getPtr());
gl.uniform4fv(gl.getUniformLocation(prog, "u_colorBias"), 1, params.colorBias.getPtr());
if (logUniforms)
{
m_log << TestLog::Message << "u_colorScale = " << params.colorScale << TestLog::EndMessage;
m_log << TestLog::Message << "u_colorBias = " << params.colorBias << TestLog::EndMessage;
}
GLU_EXPECT_NO_ERROR(gl.getError(), "Set program state");
{
const glu::VertexArrayBinding vertexArrays[] =
{
glu::va::Float("a_position", 4, 4, 0, &position[0]),
glu::va::Float("a_texCoord", numComps, 4, 0, texCoord)
};
glu::draw(m_renderCtx, prog, DE_LENGTH_OF_ARRAY(vertexArrays), &vertexArrays[0],
glu::pr::Triangles(DE_LENGTH_OF_ARRAY(indices), &indices[0]));
}
}
void computeQuadTexCoord1D (std::vector<float>& dst, float left, float right)
{
dst.resize(4);
dst[0] = left;
dst[1] = left;
dst[2] = right;
dst[3] = right;
}
void computeQuadTexCoord1DArray (std::vector<float>& dst, int layerNdx, float left, float right)
{
dst.resize(4*2);
dst[0] = left; dst[1] = (float)layerNdx;
dst[2] = left; dst[3] = (float)layerNdx;
dst[4] = right; dst[5] = (float)layerNdx;
dst[6] = right; dst[7] = (float)layerNdx;
}
void computeQuadTexCoord2D (std::vector<float>& dst, const tcu::Vec2& bottomLeft, const tcu::Vec2& topRight)
{
dst.resize(4*2);
dst[0] = bottomLeft.x(); dst[1] = bottomLeft.y();
dst[2] = bottomLeft.x(); dst[3] = topRight.y();
dst[4] = topRight.x(); dst[5] = bottomLeft.y();
dst[6] = topRight.x(); dst[7] = topRight.y();
}
void computeQuadTexCoord2DArray (std::vector<float>& dst, int layerNdx, const tcu::Vec2& bottomLeft, const tcu::Vec2& topRight)
{
dst.resize(4*3);
dst[0] = bottomLeft.x(); dst[ 1] = bottomLeft.y(); dst[ 2] = (float)layerNdx;
dst[3] = bottomLeft.x(); dst[ 4] = topRight.y(); dst[ 5] = (float)layerNdx;
dst[6] = topRight.x(); dst[ 7] = bottomLeft.y(); dst[ 8] = (float)layerNdx;
dst[9] = topRight.x(); dst[10] = topRight.y(); dst[11] = (float)layerNdx;
}
void computeQuadTexCoord3D (std::vector<float>& dst, const tcu::Vec3& p0, const tcu::Vec3& p1, const tcu::IVec3& dirSwz)
{
tcu::Vec3 f0 = tcu::Vec3(0.0f, 0.0f, 0.0f).swizzle(dirSwz[0], dirSwz[1], dirSwz[2]);
tcu::Vec3 f1 = tcu::Vec3(0.0f, 1.0f, 0.0f).swizzle(dirSwz[0], dirSwz[1], dirSwz[2]);
tcu::Vec3 f2 = tcu::Vec3(1.0f, 0.0f, 0.0f).swizzle(dirSwz[0], dirSwz[1], dirSwz[2]);
tcu::Vec3 f3 = tcu::Vec3(1.0f, 1.0f, 0.0f).swizzle(dirSwz[0], dirSwz[1], dirSwz[2]);
tcu::Vec3 v0 = p0 + (p1-p0)*f0;
tcu::Vec3 v1 = p0 + (p1-p0)*f1;
tcu::Vec3 v2 = p0 + (p1-p0)*f2;
tcu::Vec3 v3 = p0 + (p1-p0)*f3;
dst.resize(4*3);
dst[0] = v0.x(); dst[ 1] = v0.y(); dst[ 2] = v0.z();
dst[3] = v1.x(); dst[ 4] = v1.y(); dst[ 5] = v1.z();
dst[6] = v2.x(); dst[ 7] = v2.y(); dst[ 8] = v2.z();
dst[9] = v3.x(); dst[10] = v3.y(); dst[11] = v3.z();
}
void computeQuadTexCoordCube (std::vector<float>& dst, tcu::CubeFace face)
{
static const float texCoordNegX[] =
{
-1.0f, 1.0f, -1.0f,
-1.0f, -1.0f, -1.0f,
-1.0f, 1.0f, 1.0f,
-1.0f, -1.0f, 1.0f
};
static const float texCoordPosX[] =
{
+1.0f, 1.0f, 1.0f,
+1.0f, -1.0f, 1.0f,
+1.0f, 1.0f, -1.0f,
+1.0f, -1.0f, -1.0f
};
static const float texCoordNegY[] =
{
-1.0f, -1.0f, 1.0f,
-1.0f, -1.0f, -1.0f,
1.0f, -1.0f, 1.0f,
1.0f, -1.0f, -1.0f
};
static const float texCoordPosY[] =
{
-1.0f, +1.0f, -1.0f,
-1.0f, +1.0f, 1.0f,
1.0f, +1.0f, -1.0f,
1.0f, +1.0f, 1.0f
};
static const float texCoordNegZ[] =
{
1.0f, 1.0f, -1.0f,
1.0f, -1.0f, -1.0f,
-1.0f, 1.0f, -1.0f,
-1.0f, -1.0f, -1.0f
};
static const float texCoordPosZ[] =
{
-1.0f, 1.0f, +1.0f,
-1.0f, -1.0f, +1.0f,
1.0f, 1.0f, +1.0f,
1.0f, -1.0f, +1.0f
};
const float* texCoord = DE_NULL;
int texCoordSize = DE_LENGTH_OF_ARRAY(texCoordNegX);
switch (face)
{
case tcu::CUBEFACE_NEGATIVE_X: texCoord = texCoordNegX; break;
case tcu::CUBEFACE_POSITIVE_X: texCoord = texCoordPosX; break;
case tcu::CUBEFACE_NEGATIVE_Y: texCoord = texCoordNegY; break;
case tcu::CUBEFACE_POSITIVE_Y: texCoord = texCoordPosY; break;
case tcu::CUBEFACE_NEGATIVE_Z: texCoord = texCoordNegZ; break;
case tcu::CUBEFACE_POSITIVE_Z: texCoord = texCoordPosZ; break;
default:
DE_ASSERT(DE_FALSE);
return;
}
dst.resize(texCoordSize);
std::copy(texCoord, texCoord+texCoordSize, dst.begin());
}
void computeQuadTexCoordCube (std::vector<float>& dst, tcu::CubeFace face, const tcu::Vec2& bottomLeft, const tcu::Vec2& topRight)
{
int sRow = 0;
int tRow = 0;
int mRow = 0;
float sSign = 1.0f;
float tSign = 1.0f;
float mSign = 1.0f;
switch (face)
{
case tcu::CUBEFACE_NEGATIVE_X: mRow = 0; sRow = 2; tRow = 1; mSign = -1.0f; tSign = -1.0f; break;
case tcu::CUBEFACE_POSITIVE_X: mRow = 0; sRow = 2; tRow = 1; sSign = -1.0f; tSign = -1.0f; break;
case tcu::CUBEFACE_NEGATIVE_Y: mRow = 1; sRow = 0; tRow = 2; mSign = -1.0f; tSign = -1.0f; break;
case tcu::CUBEFACE_POSITIVE_Y: mRow = 1; sRow = 0; tRow = 2; break;
case tcu::CUBEFACE_NEGATIVE_Z: mRow = 2; sRow = 0; tRow = 1; mSign = -1.0f; sSign = -1.0f; tSign = -1.0f; break;
case tcu::CUBEFACE_POSITIVE_Z: mRow = 2; sRow = 0; tRow = 1; tSign = -1.0f; break;
default:
DE_ASSERT(DE_FALSE);
return;
}
dst.resize(3*4);
dst[0+mRow] = mSign;
dst[3+mRow] = mSign;
dst[6+mRow] = mSign;
dst[9+mRow] = mSign;
dst[0+sRow] = sSign * bottomLeft.x();
dst[3+sRow] = sSign * bottomLeft.x();
dst[6+sRow] = sSign * topRight.x();
dst[9+sRow] = sSign * topRight.x();
dst[0+tRow] = tSign * bottomLeft.y();
dst[3+tRow] = tSign * topRight.y();
dst[6+tRow] = tSign * bottomLeft.y();
dst[9+tRow] = tSign * topRight.y();
}
void computeQuadTexCoordCubeArray (std::vector<float>& dst, tcu::CubeFace face, const tcu::Vec2& bottomLeft, const tcu::Vec2& topRight, const tcu::Vec2& layerRange)
{
int sRow = 0;
int tRow = 0;
int mRow = 0;
const int qRow = 3;
float sSign = 1.0f;
float tSign = 1.0f;
float mSign = 1.0f;
const float l0 = layerRange.x();
const float l1 = layerRange.y();
switch (face)
{
case tcu::CUBEFACE_NEGATIVE_X: mRow = 0; sRow = 2; tRow = 1; mSign = -1.0f; tSign = -1.0f; break;
case tcu::CUBEFACE_POSITIVE_X: mRow = 0; sRow = 2; tRow = 1; sSign = -1.0f; tSign = -1.0f; break;
case tcu::CUBEFACE_NEGATIVE_Y: mRow = 1; sRow = 0; tRow = 2; mSign = -1.0f; tSign = -1.0f; break;
case tcu::CUBEFACE_POSITIVE_Y: mRow = 1; sRow = 0; tRow = 2; break;
case tcu::CUBEFACE_NEGATIVE_Z: mRow = 2; sRow = 0; tRow = 1; mSign = -1.0f; sSign = -1.0f; tSign = -1.0f; break;
case tcu::CUBEFACE_POSITIVE_Z: mRow = 2; sRow = 0; tRow = 1; tSign = -1.0f; break;
default:
DE_ASSERT(DE_FALSE);
return;
}
dst.resize(4*4);
dst[ 0+mRow] = mSign;
dst[ 4+mRow] = mSign;
dst[ 8+mRow] = mSign;
dst[12+mRow] = mSign;
dst[ 0+sRow] = sSign * bottomLeft.x();
dst[ 4+sRow] = sSign * bottomLeft.x();
dst[ 8+sRow] = sSign * topRight.x();
dst[12+sRow] = sSign * topRight.x();
dst[ 0+tRow] = tSign * bottomLeft.y();
dst[ 4+tRow] = tSign * topRight.y();
dst[ 8+tRow] = tSign * bottomLeft.y();
dst[12+tRow] = tSign * topRight.y();
if (l0 != l1)
{
dst[ 0+qRow] = l0;
dst[ 4+qRow] = l0*0.5f + l1*0.5f;
dst[ 8+qRow] = l0*0.5f + l1*0.5f;
dst[12+qRow] = l1;
}
else
{
dst[ 0+qRow] = l0;
dst[ 4+qRow] = l0;
dst[ 8+qRow] = l0;
dst[12+qRow] = l0;
}
}
// Texture result verification
//! Verifies texture lookup results and returns number of failed pixels.
int computeTextureLookupDiff (const tcu::ConstPixelBufferAccess& result,
const tcu::ConstPixelBufferAccess& reference,
const tcu::PixelBufferAccess& errorMask,
const tcu::Texture1DView& baseView,
const float* texCoord,
const ReferenceParams& sampleParams,
const tcu::LookupPrecision& lookupPrec,
const tcu::LodPrecision& lodPrec,
qpWatchDog* watchDog)
{
DE_ASSERT(result.getWidth() == reference.getWidth() && result.getHeight() == reference.getHeight());
DE_ASSERT(result.getWidth() == errorMask.getWidth() && result.getHeight() == errorMask.getHeight());
const tcu::Texture1DView src = getSubView(baseView, sampleParams.baseLevel, sampleParams.maxLevel);
const tcu::Vec4 sq = tcu::Vec4(texCoord[0], texCoord[1], texCoord[2], texCoord[3]);
const tcu::IVec2 dstSize = tcu::IVec2(result.getWidth(), result.getHeight());
const float dstW = float(dstSize.x());
const float dstH = float(dstSize.y());
const int srcSize = src.getWidth();
// Coordinates and lod per triangle.
const tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
const tcu::Vec3 triW[2] = { sampleParams.w.swizzle(0, 1, 2), sampleParams.w.swizzle(3, 2, 1) };
const tcu::Vec2 lodBias ((sampleParams.flags & ReferenceParams::USE_BIAS) ? sampleParams.bias : 0.0f);
int numFailed = 0;
const tcu::Vec2 lodOffsets[] =
{
tcu::Vec2(-1, 0),
tcu::Vec2(+1, 0),
tcu::Vec2( 0, -1),
tcu::Vec2( 0, +1),
};
tcu::clear(errorMask, tcu::RGBA::green.toVec());
for (int py = 0; py < result.getHeight(); py++)
{
// Ugly hack, validation can take way too long at the moment.
if (watchDog)
qpWatchDog_touch(watchDog);
for (int px = 0; px < result.getWidth(); px++)
{
const tcu::Vec4 resPix = (result.getPixel(px, py) - sampleParams.colorBias) / sampleParams.colorScale;
const tcu::Vec4 refPix = (reference.getPixel(px, py) - sampleParams.colorBias) / sampleParams.colorScale;
// Try comparison to ideal reference first, and if that fails use slower verificator.
if (!tcu::boolAll(tcu::lessThanEqual(tcu::abs(resPix - refPix), lookupPrec.colorThreshold)))
{
const float wx = (float)px + 0.5f;
const float wy = (float)py + 0.5f;
const float nx = wx / dstW;
const float ny = wy / dstH;
const int triNdx = nx + ny >= 1.0f ? 1 : 0;
const float triWx = triNdx ? dstW - wx : wx;
const float triWy = triNdx ? dstH - wy : wy;
const float triNx = triNdx ? 1.0f - nx : nx;
const float triNy = triNdx ? 1.0f - ny : ny;
const float coord = projectedTriInterpolate(triS[triNdx], triW[triNdx], triNx, triNy);
const float coordDx = triDerivateX(triS[triNdx], triW[triNdx], wx, dstW, triNy) * float(srcSize);
const float coordDy = triDerivateY(triS[triNdx], triW[triNdx], wy, dstH, triNx) * float(srcSize);
tcu::Vec2 lodBounds = tcu::computeLodBoundsFromDerivates(coordDx, coordDy, lodPrec);
// Compute lod bounds across lodOffsets range.
for (int lodOffsNdx = 0; lodOffsNdx < DE_LENGTH_OF_ARRAY(lodOffsets); lodOffsNdx++)
{
const float wxo = triWx + lodOffsets[lodOffsNdx].x();
const float wyo = triWy + lodOffsets[lodOffsNdx].y();
const float nxo = wxo/dstW;
const float nyo = wyo/dstH;
const float coordDxo = triDerivateX(triS[triNdx], triW[triNdx], wxo, dstW, nyo) * float(srcSize);
const float coordDyo = triDerivateY(triS[triNdx], triW[triNdx], wyo, dstH, nxo) * float(srcSize);
const tcu::Vec2 lodO = tcu::computeLodBoundsFromDerivates(coordDxo, coordDyo, lodPrec);
lodBounds.x() = de::min(lodBounds.x(), lodO.x());
lodBounds.y() = de::max(lodBounds.y(), lodO.y());
}
const tcu::Vec2 clampedLod = tcu::clampLodBounds(lodBounds + lodBias, tcu::Vec2(sampleParams.minLod, sampleParams.maxLod), lodPrec);
const bool isOk = tcu::isLookupResultValid(src, sampleParams.sampler, lookupPrec, coord, clampedLod, resPix);
if (!isOk)
{
errorMask.setPixel(tcu::RGBA::red.toVec(), px, py);
numFailed += 1;
}
}
}
}
return numFailed;
}
int computeTextureLookupDiff (const tcu::ConstPixelBufferAccess& result,
const tcu::ConstPixelBufferAccess& reference,
const tcu::PixelBufferAccess& errorMask,
const tcu::Texture2DView& baseView,
const float* texCoord,
const ReferenceParams& sampleParams,
const tcu::LookupPrecision& lookupPrec,
const tcu::LodPrecision& lodPrec,
qpWatchDog* watchDog)
{
DE_ASSERT(result.getWidth() == reference.getWidth() && result.getHeight() == reference.getHeight());
DE_ASSERT(result.getWidth() == errorMask.getWidth() && result.getHeight() == errorMask.getHeight());
const tcu::Texture2DView src = getSubView(baseView, sampleParams.baseLevel, sampleParams.maxLevel);
const tcu::Vec4 sq = tcu::Vec4(texCoord[0+0], texCoord[2+0], texCoord[4+0], texCoord[6+0]);
const tcu::Vec4 tq = tcu::Vec4(texCoord[0+1], texCoord[2+1], texCoord[4+1], texCoord[6+1]);
const tcu::IVec2 dstSize = tcu::IVec2(result.getWidth(), result.getHeight());
const float dstW = float(dstSize.x());
const float dstH = float(dstSize.y());
const tcu::IVec2 srcSize = tcu::IVec2(src.getWidth(), src.getHeight());
// Coordinates and lod per triangle.
const tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
const tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
const tcu::Vec3 triW[2] = { sampleParams.w.swizzle(0, 1, 2), sampleParams.w.swizzle(3, 2, 1) };
const tcu::Vec2 lodBias ((sampleParams.flags & ReferenceParams::USE_BIAS) ? sampleParams.bias : 0.0f);
int numFailed = 0;
const tcu::Vec2 lodOffsets[] =
{
tcu::Vec2(-1, 0),
tcu::Vec2(+1, 0),
tcu::Vec2( 0, -1),
tcu::Vec2( 0, +1),
};
tcu::clear(errorMask, tcu::RGBA::green.toVec());
for (int py = 0; py < result.getHeight(); py++)
{
// Ugly hack, validation can take way too long at the moment.
if (watchDog)
qpWatchDog_touch(watchDog);
for (int px = 0; px < result.getWidth(); px++)
{
const tcu::Vec4 resPix = (result.getPixel(px, py) - sampleParams.colorBias) / sampleParams.colorScale;
const tcu::Vec4 refPix = (reference.getPixel(px, py) - sampleParams.colorBias) / sampleParams.colorScale;
// Try comparison to ideal reference first, and if that fails use slower verificator.
if (!tcu::boolAll(tcu::lessThanEqual(tcu::abs(resPix - refPix), lookupPrec.colorThreshold)))
{
const float wx = (float)px + 0.5f;
const float wy = (float)py + 0.5f;
const float nx = wx / dstW;
const float ny = wy / dstH;
const int triNdx = nx + ny >= 1.0f ? 1 : 0;
const float triWx = triNdx ? dstW - wx : wx;
const float triWy = triNdx ? dstH - wy : wy;
const float triNx = triNdx ? 1.0f - nx : nx;
const float triNy = triNdx ? 1.0f - ny : ny;
const tcu::Vec2 coord (projectedTriInterpolate(triS[triNdx], triW[triNdx], triNx, triNy),
projectedTriInterpolate(triT[triNdx], triW[triNdx], triNx, triNy));
const tcu::Vec2 coordDx = tcu::Vec2(triDerivateX(triS[triNdx], triW[triNdx], wx, dstW, triNy),
triDerivateX(triT[triNdx], triW[triNdx], wx, dstW, triNy)) * srcSize.asFloat();
const tcu::Vec2 coordDy = tcu::Vec2(triDerivateY(triS[triNdx], triW[triNdx], wy, dstH, triNx),
triDerivateY(triT[triNdx], triW[triNdx], wy, dstH, triNx)) * srcSize.asFloat();
tcu::Vec2 lodBounds = tcu::computeLodBoundsFromDerivates(coordDx.x(), coordDx.y(), coordDy.x(), coordDy.y(), lodPrec);
// Compute lod bounds across lodOffsets range.
for (int lodOffsNdx = 0; lodOffsNdx < DE_LENGTH_OF_ARRAY(lodOffsets); lodOffsNdx++)
{
const float wxo = triWx + lodOffsets[lodOffsNdx].x();
const float wyo = triWy + lodOffsets[lodOffsNdx].y();
const float nxo = wxo/dstW;
const float nyo = wyo/dstH;
const tcu::Vec2 coordDxo = tcu::Vec2(triDerivateX(triS[triNdx], triW[triNdx], wxo, dstW, nyo),
triDerivateX(triT[triNdx], triW[triNdx], wxo, dstW, nyo)) * srcSize.asFloat();
const tcu::Vec2 coordDyo = tcu::Vec2(triDerivateY(triS[triNdx], triW[triNdx], wyo, dstH, nxo),
triDerivateY(triT[triNdx], triW[triNdx], wyo, dstH, nxo)) * srcSize.asFloat();
const tcu::Vec2 lodO = tcu::computeLodBoundsFromDerivates(coordDxo.x(), coordDxo.y(), coordDyo.x(), coordDyo.y(), lodPrec);
lodBounds.x() = de::min(lodBounds.x(), lodO.x());
lodBounds.y() = de::max(lodBounds.y(), lodO.y());
}
const tcu::Vec2 clampedLod = tcu::clampLodBounds(lodBounds + lodBias, tcu::Vec2(sampleParams.minLod, sampleParams.maxLod), lodPrec);
const bool isOk = tcu::isLookupResultValid(src, sampleParams.sampler, lookupPrec, coord, clampedLod, resPix);
if (!isOk)
{
errorMask.setPixel(tcu::RGBA::red.toVec(), px, py);
numFailed += 1;
}
}
}
}
return numFailed;
}
bool verifyTextureResult (tcu::TestContext& testCtx,
const tcu::ConstPixelBufferAccess& result,
const tcu::Texture1DView& src,
const float* texCoord,
const ReferenceParams& sampleParams,
const tcu::LookupPrecision& lookupPrec,
const tcu::LodPrecision& lodPrec,
const tcu::PixelFormat& pixelFormat)
{
tcu::TestLog& log = testCtx.getLog();
tcu::Surface reference (result.getWidth(), result.getHeight());
tcu::Surface errorMask (result.getWidth(), result.getHeight());
int numFailedPixels;
DE_ASSERT(getCompareMask(pixelFormat) == lookupPrec.colorMask);
sampleTexture(SurfaceAccess(reference, pixelFormat), src, texCoord, sampleParams);
numFailedPixels = computeTextureLookupDiff(result, reference.getAccess(), errorMask.getAccess(), src, texCoord, sampleParams, lookupPrec, lodPrec, testCtx.getWatchDog());
if (numFailedPixels > 0)
log << TestLog::Message << "ERROR: Result verification failed, got " << numFailedPixels << " invalid pixels!" << TestLog::EndMessage;
log << TestLog::ImageSet("VerifyResult", "Verification result")
<< TestLog::Image("Rendered", "Rendered image", result);
if (numFailedPixels > 0)
{
log << TestLog::Image("Reference", "Ideal reference image", reference)
<< TestLog::Image("ErrorMask", "Error mask", errorMask);
}
log << TestLog::EndImageSet;
return numFailedPixels == 0;
}
bool verifyTextureResult (tcu::TestContext& testCtx,
const tcu::ConstPixelBufferAccess& result,
const tcu::Texture2DView& src,
const float* texCoord,
const ReferenceParams& sampleParams,
const tcu::LookupPrecision& lookupPrec,
const tcu::LodPrecision& lodPrec,
const tcu::PixelFormat& pixelFormat)
{
tcu::TestLog& log = testCtx.getLog();
tcu::Surface reference (result.getWidth(), result.getHeight());
tcu::Surface errorMask (result.getWidth(), result.getHeight());
int numFailedPixels;
DE_ASSERT(getCompareMask(pixelFormat) == lookupPrec.colorMask);
sampleTexture(SurfaceAccess(reference, pixelFormat), src, texCoord, sampleParams);
numFailedPixels = computeTextureLookupDiff(result, reference.getAccess(), errorMask.getAccess(), src, texCoord, sampleParams, lookupPrec, lodPrec, testCtx.getWatchDog());
if (numFailedPixels > 0)
log << TestLog::Message << "ERROR: Result verification failed, got " << numFailedPixels << " invalid pixels!" << TestLog::EndMessage;
log << TestLog::ImageSet("VerifyResult", "Verification result")
<< TestLog::Image("Rendered", "Rendered image", result);
if (numFailedPixels > 0)
{
log << TestLog::Image("Reference", "Ideal reference image", reference)
<< TestLog::Image("ErrorMask", "Error mask", errorMask);
}
log << TestLog::EndImageSet;
return numFailedPixels == 0;
}
//! Verifies texture lookup results and returns number of failed pixels.
int computeTextureLookupDiff (const tcu::ConstPixelBufferAccess& result,
const tcu::ConstPixelBufferAccess& reference,
const tcu::PixelBufferAccess& errorMask,
const tcu::TextureCubeView& baseView,
const float* texCoord,
const ReferenceParams& sampleParams,
const tcu::LookupPrecision& lookupPrec,
const tcu::LodPrecision& lodPrec,
qpWatchDog* watchDog)
{
DE_ASSERT(result.getWidth() == reference.getWidth() && result.getHeight() == reference.getHeight());
DE_ASSERT(result.getWidth() == errorMask.getWidth() && result.getHeight() == errorMask.getHeight());
const tcu::TextureCubeView src = getSubView(baseView, sampleParams.baseLevel, sampleParams.maxLevel);
const tcu::Vec4 sq = tcu::Vec4(texCoord[0+0], texCoord[3+0], texCoord[6+0], texCoord[9+0]);
const tcu::Vec4 tq = tcu::Vec4(texCoord[0+1], texCoord[3+1], texCoord[6+1], texCoord[9+1]);
const tcu::Vec4 rq = tcu::Vec4(texCoord[0+2], texCoord[3+2], texCoord[6+2], texCoord[9+2]);
const tcu::IVec2 dstSize = tcu::IVec2(result.getWidth(), result.getHeight());
const float dstW = float(dstSize.x());
const float dstH = float(dstSize.y());
const int srcSize = src.getSize();
// Coordinates per triangle.
const tcu::Vec3 triS[2] = { sq.swizzle(0, 1, 2), sq.swizzle(3, 2, 1) };
const tcu::Vec3 triT[2] = { tq.swizzle(0, 1, 2), tq.swizzle(3, 2, 1) };
const tcu::Vec3 triR[2] = { rq.swizzle(0, 1, 2), rq.swizzle(3, 2, 1) };
const tcu::Vec3 triW[2] = { sampleParams.w.swizzle(0, 1, 2), sampleParams.w.swizzle(3, 2, 1) };
const tcu::