/*-------------------------------------------------------------------------
* drawElements Quality Program Tester Core
* ----------------------------------------
*
* 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 utilities.
*//*--------------------------------------------------------------------*/
#include "tcuTextureUtil.hpp"
#include "tcuVectorUtil.hpp"
#include "deRandom.hpp"
#include "deMath.h"
#include "deMemory.h"
#include <limits>
namespace tcu
{
static inline float sRGBChannelToLinear (float cs)
{
if (cs <= 0.04045)
return cs / 12.92f;
else
return deFloatPow((cs + 0.055f) / 1.055f, 2.4f);
}
static inline float linearChannelToSRGB (float cl)
{
if (cl <= 0.0f)
return 0.0f;
else if (cl < 0.0031308f)
return 12.92f*cl;
else if (cl < 1.0f)
return 1.055f*deFloatPow(cl, 0.41666f) - 0.055f;
else
return 1.0f;
}
//! Convert sRGB to linear colorspace
Vec4 sRGBToLinear (const Vec4& cs)
{
return Vec4(sRGBChannelToLinear(cs[0]),
sRGBChannelToLinear(cs[1]),
sRGBChannelToLinear(cs[2]),
cs[3]);
}
//! Convert from linear to sRGB colorspace
Vec4 linearToSRGB (const Vec4& cl)
{
return Vec4(linearChannelToSRGB(cl[0]),
linearChannelToSRGB(cl[1]),
linearChannelToSRGB(cl[2]),
cl[3]);
}
//! Get texture channel class for format
TextureChannelClass getTextureChannelClass (TextureFormat::ChannelType channelType)
{
switch (channelType)
{
case TextureFormat::SNORM_INT8: return TEXTURECHANNELCLASS_SIGNED_FIXED_POINT;
case TextureFormat::SNORM_INT16: return TEXTURECHANNELCLASS_SIGNED_FIXED_POINT;
case TextureFormat::UNORM_INT8: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
case TextureFormat::UNORM_INT16: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
case TextureFormat::UNORM_SHORT_565: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
case TextureFormat::UNORM_SHORT_555: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
case TextureFormat::UNORM_SHORT_4444: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
case TextureFormat::UNORM_SHORT_5551: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
case TextureFormat::UNORM_INT_101010: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
case TextureFormat::UNORM_INT_1010102_REV: return TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
case TextureFormat::UNSIGNED_INT_1010102_REV: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: return TEXTURECHANNELCLASS_FLOATING_POINT;
case TextureFormat::UNSIGNED_INT_999_E5_REV: return TEXTURECHANNELCLASS_FLOATING_POINT;
case TextureFormat::SIGNED_INT8: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
case TextureFormat::SIGNED_INT16: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
case TextureFormat::SIGNED_INT32: return TEXTURECHANNELCLASS_SIGNED_INTEGER;
case TextureFormat::UNSIGNED_INT8: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
case TextureFormat::UNSIGNED_INT16: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
case TextureFormat::UNSIGNED_INT32: return TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
case TextureFormat::HALF_FLOAT: return TEXTURECHANNELCLASS_FLOATING_POINT;
case TextureFormat::FLOAT: return TEXTURECHANNELCLASS_FLOATING_POINT;
default: return TEXTURECHANNELCLASS_LAST;
}
}
/*--------------------------------------------------------------------*//*!
* \brief Get access to subregion of pixel buffer
* \param access Parent access object
* \param x X offset
* \param y Y offset
* \param z Z offset
* \param width Width
* \param height Height
* \param depth Depth
* \return Access object that targets given subregion of parent access object
*//*--------------------------------------------------------------------*/
ConstPixelBufferAccess getSubregion (const ConstPixelBufferAccess& access, int x, int y, int z, int width, int height, int depth)
{
DE_ASSERT(de::inBounds(x, 0, access.getWidth()) && de::inRange(x+width, x, access.getWidth()));
DE_ASSERT(de::inBounds(y, 0, access.getHeight()) && de::inRange(y+height, y, access.getHeight()));
DE_ASSERT(de::inBounds(z, 0, access.getDepth()) && de::inRange(z+depth, z, access.getDepth()));
return ConstPixelBufferAccess(access.getFormat(), width, height, depth, access.getRowPitch(), access.getSlicePitch(),
(const deUint8*)access.getDataPtr() + access.getFormat().getPixelSize()*x + access.getRowPitch()*y + access.getSlicePitch()*z);
}
/*--------------------------------------------------------------------*//*!
* \brief Get access to subregion of pixel buffer
* \param access Parent access object
* \param x X offset
* \param y Y offset
* \param z Z offset
* \param width Width
* \param height Height
* \param depth Depth
* \return Access object that targets given subregion of parent access object
*//*--------------------------------------------------------------------*/
PixelBufferAccess getSubregion (const PixelBufferAccess& access, int x, int y, int z, int width, int height, int depth)
{
DE_ASSERT(de::inBounds(x, 0, access.getWidth()) && de::inRange(x+width, x, access.getWidth()));
DE_ASSERT(de::inBounds(y, 0, access.getHeight()) && de::inRange(y+height, y, access.getHeight()));
DE_ASSERT(de::inBounds(z, 0, access.getDepth()) && de::inRange(z+depth, z, access.getDepth()));
return PixelBufferAccess(access.getFormat(), width, height, depth, access.getRowPitch(), access.getSlicePitch(),
(deUint8*)access.getDataPtr() + access.getFormat().getPixelSize()*x + access.getRowPitch()*y + access.getSlicePitch()*z);
}
/*--------------------------------------------------------------------*//*!
* \brief Get access to subregion of pixel buffer
* \param access Parent access object
* \param x X offset
* \param y Y offset
* \param width Width
* \param height Height
* \return Access object that targets given subregion of parent access object
*//*--------------------------------------------------------------------*/
PixelBufferAccess getSubregion (const PixelBufferAccess& access, int x, int y, int width, int height)
{
return getSubregion(access, x, y, 0, width, height, 1);
}
/*--------------------------------------------------------------------*//*!
* \brief Get access to subregion of pixel buffer
* \param access Parent access object
* \param x X offset
* \param y Y offset
* \param width Width
* \param height Height
* \return Access object that targets given subregion of parent access object
*//*--------------------------------------------------------------------*/
ConstPixelBufferAccess getSubregion (const ConstPixelBufferAccess& access, int x, int y, int width, int height)
{
return getSubregion(access, x, y, 0, width, height, 1);
}
/*--------------------------------------------------------------------*//*!
* \brief Flip rows in Y direction
* \param access Access object
* \return Modified access object where Y coordinates are reversed
*//*--------------------------------------------------------------------*/
PixelBufferAccess flipYAccess (const PixelBufferAccess& access)
{
const int rowPitch = access.getRowPitch();
const int offsetToLast = rowPitch*(access.getHeight()-1);
return PixelBufferAccess(access.getFormat(), access.getWidth(), access.getHeight(), access.getDepth(),
-rowPitch, access.getSlicePitch(), (deUint8*)access.getDataPtr() + offsetToLast);
}
/*--------------------------------------------------------------------*//*!
* \brief Flip rows in Y direction
* \param access Access object
* \return Modified access object where Y coordinates are reversed
*//*--------------------------------------------------------------------*/
ConstPixelBufferAccess flipYAccess (const ConstPixelBufferAccess& access)
{
const int rowPitch = access.getRowPitch();
const int offsetToLast = rowPitch*(access.getHeight()-1);
return ConstPixelBufferAccess(access.getFormat(), access.getWidth(), access.getHeight(), access.getDepth(),
-rowPitch, access.getSlicePitch(), (const deUint8*)access.getDataPtr() + offsetToLast);
}
static Vec2 getChannelValueRange (TextureFormat::ChannelType channelType)
{
float cMin = 0.0f;
float cMax = 0.0f;
switch (channelType)
{
// Signed normalized formats.
case TextureFormat::SNORM_INT8:
case TextureFormat::SNORM_INT16: cMin = -1.0f; cMax = 1.0f; break;
// Unsigned normalized formats.
case TextureFormat::UNORM_INT8:
case TextureFormat::UNORM_INT16:
case TextureFormat::UNORM_SHORT_565:
case TextureFormat::UNORM_SHORT_4444:
case TextureFormat::UNORM_INT_101010:
case TextureFormat::UNORM_INT_1010102_REV: cMin = 0.0f; cMax = 1.0f; break;
// Misc formats.
case TextureFormat::SIGNED_INT8: cMin = -128.0f; cMax = 127.0f; break;
case TextureFormat::SIGNED_INT16: cMin = -32768.0f; cMax = 32767.0f; break;
case TextureFormat::SIGNED_INT32: cMin = -2147483648.0f; cMax = 2147483647.0f; break;
case TextureFormat::UNSIGNED_INT8: cMin = 0.0f; cMax = 255.0f; break;
case TextureFormat::UNSIGNED_INT16: cMin = 0.0f; cMax = 65535.0f; break;
case TextureFormat::UNSIGNED_INT32: cMin = 0.0f; cMax = 4294967295.f; break;
case TextureFormat::HALF_FLOAT: cMin = -1e3f; cMax = 1e3f; break;
case TextureFormat::FLOAT: cMin = -1e5f; cMax = 1e5f; break;
case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: cMin = 0.0f; cMax = 1e4f; break;
case TextureFormat::UNSIGNED_INT_999_E5_REV: cMin = 0.0f; cMax = 1e5f; break;
default:
DE_ASSERT(false);
}
return Vec2(cMin, cMax);
}
/*--------------------------------------------------------------------*//*!
* \brief Get standard parameters for testing texture format
*
* Returns TextureFormatInfo that describes good parameters for exercising
* given TextureFormat. Parameters include value ranges per channel and
* suitable lookup scaling and bias in order to reduce result back to
* 0..1 range.
*//*--------------------------------------------------------------------*/
TextureFormatInfo getTextureFormatInfo (const TextureFormat& format)
{
// Special cases.
if (format == TextureFormat(TextureFormat::RGBA, TextureFormat::UNSIGNED_INT_1010102_REV))
return TextureFormatInfo(Vec4( 0.0f, 0.0f, 0.0f, 0.0f),
Vec4( 1023.0f, 1023.0f, 1023.0f, 3.0f),
Vec4(1.0f/1023.f, 1.0f/1023.0f, 1.0f/1023.0f, 1.0f/3.0f),
Vec4( 0.0f, 0.0f, 0.0f, 0.0f));
else if (format.order == TextureFormat::D || format.order == TextureFormat::DS)
return TextureFormatInfo(Vec4(0.0f, 0.0f, 0.0f, 0.0f),
Vec4(1.0f, 1.0f, 1.0f, 0.0f),
Vec4(1.0f, 1.0f, 1.0f, 1.0f),
Vec4(0.0f, 0.0f, 0.0f, 0.0f)); // Depth / stencil formats.
else if (format == TextureFormat(TextureFormat::RGBA, TextureFormat::UNORM_SHORT_5551))
return TextureFormatInfo(Vec4(0.0f, 0.0f, 0.0f, 0.5f),
Vec4(1.0f, 1.0f, 1.0f, 1.5f),
Vec4(1.0f, 1.0f, 1.0f, 1.0f),
Vec4(0.0f, 0.0f, 0.0f, 0.0f));
Vec2 cRange = getChannelValueRange(format.type);
BVec4 chnMask = BVec4(false);
switch (format.order)
{
case TextureFormat::R: chnMask = BVec4(true, false, false, false); break;
case TextureFormat::A: chnMask = BVec4(false, false, false, true); break;
case TextureFormat::L: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::LA: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::RG: chnMask = BVec4(true, true, false, false); break;
case TextureFormat::RGB: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::RGBA: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::sRGB: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::sRGBA: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::D: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::DS: chnMask = BVec4(true, true, true, true); break;
default:
DE_ASSERT(false);
}
float scale = 1.0f / (cRange[1] - cRange[0]);
float bias = -cRange[0] * scale;
return TextureFormatInfo(select(cRange[0], 0.0f, chnMask),
select(cRange[1], 0.0f, chnMask),
select(scale, 1.0f, chnMask),
select(bias, 0.0f, chnMask));
}
static IVec4 getChannelBitDepth (TextureFormat::ChannelType channelType)
{
switch (channelType)
{
case TextureFormat::SNORM_INT8: return IVec4(8);
case TextureFormat::SNORM_INT16: return IVec4(16);
case TextureFormat::SNORM_INT32: return IVec4(32);
case TextureFormat::UNORM_INT8: return IVec4(8);
case TextureFormat::UNORM_INT16: return IVec4(16);
case TextureFormat::UNORM_INT32: return IVec4(32);
case TextureFormat::UNORM_SHORT_565: return IVec4(5,6,5,0);
case TextureFormat::UNORM_SHORT_4444: return IVec4(4);
case TextureFormat::UNORM_SHORT_555: return IVec4(5,5,5,0);
case TextureFormat::UNORM_SHORT_5551: return IVec4(5,5,5,1);
case TextureFormat::UNORM_INT_101010: return IVec4(10,10,10,0);
case TextureFormat::UNORM_INT_1010102_REV: return IVec4(10,10,10,2);
case TextureFormat::SIGNED_INT8: return IVec4(8);
case TextureFormat::SIGNED_INT16: return IVec4(16);
case TextureFormat::SIGNED_INT32: return IVec4(32);
case TextureFormat::UNSIGNED_INT8: return IVec4(8);
case TextureFormat::UNSIGNED_INT16: return IVec4(16);
case TextureFormat::UNSIGNED_INT32: return IVec4(32);
case TextureFormat::UNSIGNED_INT_1010102_REV: return IVec4(10,10,10,2);
case TextureFormat::UNSIGNED_INT_24_8: return IVec4(24,0,0,8);
case TextureFormat::HALF_FLOAT: return IVec4(16);
case TextureFormat::FLOAT: return IVec4(32);
case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: return IVec4(11,11,10,0);
case TextureFormat::UNSIGNED_INT_999_E5_REV: return IVec4(9,9,9,0);
case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV: return IVec4(32,0,0,8);
default:
DE_ASSERT(false);
return IVec4(0);
}
}
IVec4 getTextureFormatBitDepth (const TextureFormat& format)
{
IVec4 chnBits = getChannelBitDepth(format.type);
BVec4 chnMask = BVec4(false);
IVec4 chnSwz (0,1,2,3);
switch (format.order)
{
case TextureFormat::R: chnMask = BVec4(true, false, false, false); break;
case TextureFormat::A: chnMask = BVec4(false, false, false, true); break;
case TextureFormat::RA: chnMask = BVec4(true, false, false, true); break;
case TextureFormat::L: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::I: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::LA: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::RG: chnMask = BVec4(true, true, false, false); break;
case TextureFormat::RGB: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::RGBA: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::BGRA: chnMask = BVec4(true, true, true, true); chnSwz = IVec4(2, 1, 0, 3); break;
case TextureFormat::ARGB: chnMask = BVec4(true, true, true, true); chnSwz = IVec4(1, 2, 3, 0); break;
case TextureFormat::sRGB: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::sRGBA: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::D: chnMask = BVec4(true, false, false, false); break;
case TextureFormat::DS: chnMask = BVec4(true, false, false, true); break;
case TextureFormat::S: chnMask = BVec4(false, false, false, true); break;
default:
DE_ASSERT(false);
}
return select(chnBits.swizzle(chnSwz.x(), chnSwz.y(), chnSwz.z(), chnSwz.w()), IVec4(0), chnMask);
}
static IVec4 getChannelMantissaBitDepth (TextureFormat::ChannelType channelType)
{
switch (channelType)
{
case TextureFormat::SNORM_INT8:
case TextureFormat::SNORM_INT16:
case TextureFormat::SNORM_INT32:
case TextureFormat::UNORM_INT8:
case TextureFormat::UNORM_INT16:
case TextureFormat::UNORM_INT32:
case TextureFormat::UNORM_SHORT_565:
case TextureFormat::UNORM_SHORT_4444:
case TextureFormat::UNORM_SHORT_555:
case TextureFormat::UNORM_SHORT_5551:
case TextureFormat::UNORM_INT_101010:
case TextureFormat::UNORM_INT_1010102_REV:
case TextureFormat::SIGNED_INT8:
case TextureFormat::SIGNED_INT16:
case TextureFormat::SIGNED_INT32:
case TextureFormat::UNSIGNED_INT8:
case TextureFormat::UNSIGNED_INT16:
case TextureFormat::UNSIGNED_INT32:
case TextureFormat::UNSIGNED_INT_1010102_REV:
case TextureFormat::UNSIGNED_INT_24_8:
case TextureFormat::UNSIGNED_INT_999_E5_REV:
return getChannelBitDepth(channelType);
case TextureFormat::HALF_FLOAT: return IVec4(10);
case TextureFormat::FLOAT: return IVec4(23);
case TextureFormat::UNSIGNED_INT_11F_11F_10F_REV: return IVec4(6,6,5,0);
case TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV: return IVec4(23,0,0,8);
default:
DE_ASSERT(false);
return IVec4(0);
}
}
IVec4 getTextureFormatMantissaBitDepth (const TextureFormat& format)
{
IVec4 chnBits = getChannelMantissaBitDepth(format.type);
BVec4 chnMask = BVec4(false);
IVec4 chnSwz (0,1,2,3);
switch (format.order)
{
case TextureFormat::R: chnMask = BVec4(true, false, false, false); break;
case TextureFormat::A: chnMask = BVec4(false, false, false, true); break;
case TextureFormat::RA: chnMask = BVec4(true, false, false, true); break;
case TextureFormat::L: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::I: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::LA: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::RG: chnMask = BVec4(true, true, false, false); break;
case TextureFormat::RGB: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::RGBA: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::BGRA: chnMask = BVec4(true, true, true, true); chnSwz = IVec4(2, 1, 0, 3); break;
case TextureFormat::ARGB: chnMask = BVec4(true, true, true, true); chnSwz = IVec4(1, 2, 3, 0); break;
case TextureFormat::sRGB: chnMask = BVec4(true, true, true, false); break;
case TextureFormat::sRGBA: chnMask = BVec4(true, true, true, true); break;
case TextureFormat::D: chnMask = BVec4(true, false, false, false); break;
case TextureFormat::DS: chnMask = BVec4(true, false, false, true); break;
case TextureFormat::S: chnMask = BVec4(false, false, false, true); break;
default:
DE_ASSERT(false);
}
return select(chnBits.swizzle(chnSwz.x(), chnSwz.y(), chnSwz.z(), chnSwz.w()), IVec4(0), chnMask);
}
static inline float linearInterpolate (float t, float minVal, float maxVal)
{
return minVal + (maxVal - minVal) * t;
}
static inline Vec4 linearInterpolate (float t, const Vec4& a, const Vec4& b)
{
return a + (b - a) * t;
}
enum
{
CLEAR_OPTIMIZE_THRESHOLD = 128,
CLEAR_OPTIMIZE_MAX_PIXEL_SIZE = 8
};
inline void fillRow (const PixelBufferAccess& dst, int y, int z, int pixelSize, const deUint8* pixel)
{
deUint8* dstPtr = (deUint8*)dst.getDataPtr() + z*dst.getSlicePitch() + y*dst.getRowPitch();
int width = dst.getWidth();
if (pixelSize == 8 && deIsAlignedPtr(dstPtr, pixelSize) && deIsAlignedPtr(dstPtr, pixelSize))
{
deUint64 val;
memcpy(&val, pixel, sizeof(val));
for (int i = 0; i < width; i++)
((deUint64*)dstPtr)[i] = val;
}
else if (pixelSize == 4 && deIsAlignedPtr(dstPtr, pixelSize) && deIsAlignedPtr(dstPtr, pixelSize))
{
deUint32 val;
memcpy(&val, pixel, sizeof(val));
for (int i = 0; i < width; i++)
((deUint32*)dstPtr)[i] = val;
}
else
{
for (int i = 0; i < width; i++)
for (int j = 0; j < pixelSize; j++)
dstPtr[i*pixelSize+j] = pixel[j];
}
}
void clear (const PixelBufferAccess& access, const Vec4& color)
{
int pixelSize = access.getFormat().getPixelSize();
if (access.getWidth()*access.getHeight()*access.getDepth() >= CLEAR_OPTIMIZE_THRESHOLD &&
pixelSize < CLEAR_OPTIMIZE_MAX_PIXEL_SIZE)
{
// Convert to destination format.
union
{
deUint8 u8[CLEAR_OPTIMIZE_MAX_PIXEL_SIZE];
deUint64 u64; // Forces 64-bit alignment.
} pixel;
DE_STATIC_ASSERT(sizeof(pixel) == CLEAR_OPTIMIZE_MAX_PIXEL_SIZE);
PixelBufferAccess(access.getFormat(), 1, 1, 1, 0, 0, &pixel.u8[0]).setPixel(color, 0, 0);
for (int z = 0; z < access.getDepth(); z++)
for (int y = 0; y < access.getHeight(); y++)
fillRow(access, y, z, pixelSize, &pixel.u8[0]);
}
else
{
for (int z = 0; z < access.getDepth(); z++)
for (int y = 0; y < access.getHeight(); y++)
for (int x = 0; x < access.getWidth(); x++)
access.setPixel(color, x, y, z);
}
}
void clear (const PixelBufferAccess& access, const IVec4& color)
{
int pixelSize = access.getFormat().getPixelSize();
if (access.getWidth()*access.getHeight()*access.getDepth() >= CLEAR_OPTIMIZE_THRESHOLD &&
pixelSize < CLEAR_OPTIMIZE_MAX_PIXEL_SIZE)
{
// Convert to destination format.
union
{
deUint8 u8[CLEAR_OPTIMIZE_MAX_PIXEL_SIZE];
deUint64 u64; // Forces 64-bit alignment.
} pixel;
DE_STATIC_ASSERT(sizeof(pixel) == CLEAR_OPTIMIZE_MAX_PIXEL_SIZE);
PixelBufferAccess(access.getFormat(), 1, 1, 1, 0, 0, &pixel.u8[0]).setPixel(color, 0, 0);
for (int z = 0; z < access.getDepth(); z++)
for (int y = 0; y < access.getHeight(); y++)
fillRow(access, y, z, pixelSize, &pixel.u8[0]);
}
else
{
for (int z = 0; z < access.getDepth(); z++)
for (int y = 0; y < access.getHeight(); y++)
for (int x = 0; x < access.getWidth(); x++)
access.setPixel(color, x, y, z);
}
}
void clearDepth (const PixelBufferAccess& access, float depth)
{
int pixelSize = access.getFormat().getPixelSize();
if (access.getWidth()*access.getHeight()*access.getDepth() >= CLEAR_OPTIMIZE_THRESHOLD &&
pixelSize < CLEAR_OPTIMIZE_MAX_PIXEL_SIZE)
{
// Convert to destination format.
union
{
deUint8 u8[CLEAR_OPTIMIZE_MAX_PIXEL_SIZE];
deUint64 u64; // Forces 64-bit alignment.
} pixel;
DE_STATIC_ASSERT(sizeof(pixel) == CLEAR_OPTIMIZE_MAX_PIXEL_SIZE);
PixelBufferAccess(access.getFormat(), 1, 1, 1, 0, 0, &pixel.u8[0]).setPixDepth(depth, 0, 0);
for (int z = 0; z < access.getDepth(); z++)
for (int y = 0; y < access.getHeight(); y++)
fillRow(access, y, z, pixelSize, &pixel.u8[0]);
}
else
{
for (int z = 0; z < access.getDepth(); z++)
for (int y = 0; y < access.getHeight(); y++)
for (int x = 0; x < access.getWidth(); x++)
access.setPixDepth(depth, x, y, z);
}
}
void clearStencil (const PixelBufferAccess& access, int stencil)
{
int pixelSize = access.getFormat().getPixelSize();
if (access.getWidth()*access.getHeight()*access.getDepth() >= CLEAR_OPTIMIZE_THRESHOLD &&
pixelSize < CLEAR_OPTIMIZE_MAX_PIXEL_SIZE)
{
// Convert to destination format.
union
{
deUint8 u8[CLEAR_OPTIMIZE_MAX_PIXEL_SIZE];
deUint64 u64; // Forces 64-bit alignment.
} pixel;
DE_STATIC_ASSERT(sizeof(pixel) == CLEAR_OPTIMIZE_MAX_PIXEL_SIZE);
PixelBufferAccess(access.getFormat(), 1, 1, 1, 0, 0, &pixel.u8[0]).setPixStencil(stencil, 0, 0);
for (int z = 0; z < access.getDepth(); z++)
for (int y = 0; y < access.getHeight(); y++)
fillRow(access, y, z, pixelSize, &pixel.u8[0]);
}
else
{
for (int z = 0; z < access.getDepth(); z++)
for (int y = 0; y < access.getHeight(); y++)
for (int x = 0; x < access.getWidth(); x++)
access.setPixStencil(stencil, x, y, z);
}
}
static void fillWithComponentGradients1D (const PixelBufferAccess& access, const Vec4& minVal, const Vec4& maxVal)
{
DE_ASSERT(access.getHeight() == 1);
for (int x = 0; x < access.getWidth(); x++)
{
float s = ((float)x + 0.5f) / (float)access.getWidth();
float r = linearInterpolate(s, minVal.x(), maxVal.x());
float g = linearInterpolate(s, minVal.y(), maxVal.y());
float b = linearInterpolate(s, minVal.z(), maxVal.z());
float a = linearInterpolate(s, minVal.w(), maxVal.w());
access.setPixel(tcu::Vec4(r, g, b, a), x, 0);
}
}
static void fillWithComponentGradients2D (const PixelBufferAccess& access, const Vec4& minVal, const Vec4& maxVal)
{
for (int y = 0; y < access.getHeight(); y++)
{
for (int x = 0; x < access.getWidth(); x++)
{
float s = ((float)x + 0.5f) / (float)access.getWidth();
float t = ((float)y + 0.5f) / (float)access.getHeight();
float r = linearInterpolate(( s + t) *0.5f, minVal.x(), maxVal.x());
float g = linearInterpolate(( s + (1.0f-t))*0.5f, minVal.y(), maxVal.y());
float b = linearInterpolate(((1.0f-s) + t) *0.5f, minVal.z(), maxVal.z());
float a = linearInterpolate(((1.0f-s) + (1.0f-t))*0.5f, minVal.w(), maxVal.w());
access.setPixel(tcu::Vec4(r, g, b, a), x, y);
}
}
}
static void fillWithComponentGradients3D (const PixelBufferAccess& dst, const Vec4& minVal, const Vec4& maxVal)
{
for (int z = 0; z < dst.getDepth(); z++)
{
for (int y = 0; y < dst.getHeight(); y++)
{
for (int x = 0; x < dst.getWidth(); x++)
{
float s = ((float)x + 0.5f) / (float)dst.getWidth();
float t = ((float)y + 0.5f) / (float)dst.getHeight();
float p = ((float)z + 0.5f) / (float)dst.getDepth();
float r = linearInterpolate(s, minVal.x(), maxVal.x());
float g = linearInterpolate(t, minVal.y(), maxVal.y());
float b = linearInterpolate(p, minVal.z(), maxVal.z());
float a = linearInterpolate(1.0f - (s+t+p)/3.0f, minVal.w(), maxVal.w());
dst.setPixel(tcu::Vec4(r, g, b, a), x, y, z);
}
}
}
}
void fillWithComponentGradients (const PixelBufferAccess& access, const Vec4& minVal, const Vec4& maxVal)
{
if (access.getHeight() == 1 && access.getDepth() == 1)
fillWithComponentGradients1D(access, minVal, maxVal);
else if (access.getDepth() == 1)
fillWithComponentGradients2D(access, minVal, maxVal);
else
fillWithComponentGradients3D(access, minVal, maxVal);
}
void fillWithGrid1D (const PixelBufferAccess& access, int cellSize, const Vec4& colorA, const Vec4& colorB)
{
for (int x = 0; x < access.getWidth(); x++)
{
int mx = (x / cellSize) % 2;
if (mx)
access.setPixel(colorB, x, 0);
else
access.setPixel(colorA, x, 0);
}
}
void fillWithGrid2D (const PixelBufferAccess& access, int cellSize, const Vec4& colorA, const Vec4& colorB)
{
for (int y = 0; y < access.getHeight(); y++)
{
for (int x = 0; x < access.getWidth(); x++)
{
int mx = (x / cellSize) % 2;
int my = (y / cellSize) % 2;
if (mx ^ my)
access.setPixel(colorB, x, y);
else
access.setPixel(colorA, x, y);
}
}
}
void fillWithGrid3D (const PixelBufferAccess& access, int cellSize, const Vec4& colorA, const Vec4& colorB)
{
for (int z = 0; z < access.getDepth(); z++)
{
for (int y = 0; y < access.getHeight(); y++)
{
for (int x = 0; x < access.getWidth(); x++)
{
int mx = (x / cellSize) % 2;
int my = (y / cellSize) % 2;
int mz = (z / cellSize) % 2;
if (mx ^ my ^ mz)
access.setPixel(colorB, x, y, z);
else
access.setPixel(colorA, x, y, z);
}
}
}
}
void fillWithGrid (const PixelBufferAccess& access, int cellSize, const Vec4& colorA, const Vec4& colorB)
{
if (access.getHeight() == 1 && access.getDepth() == 1)
fillWithGrid1D(access, cellSize, colorA, colorB);
else if (access.getDepth() == 1)
fillWithGrid2D(access, cellSize, colorA, colorB);
else
fillWithGrid3D(access, cellSize, colorA, colorB);
}
void fillWithRepeatableGradient (const PixelBufferAccess& access, const Vec4& colorA, const Vec4& colorB)
{
for (int y = 0; y < access.getHeight(); y++)
{
for (int x = 0; x < access.getWidth(); x++)
{
float s = ((float)x + 0.5f) / (float)access.getWidth();
float t = ((float)y + 0.5f) / (float)access.getHeight();
float a = s > 0.5f ? (2.0f - 2.0f*s) : 2.0f*s;
float b = t > 0.5f ? (2.0f - 2.0f*t) : 2.0f*t;
float p = deFloatClamp(deFloatSqrt(a*a + b*b), 0.0f, 1.0f);
access.setPixel(linearInterpolate(p, colorA, colorB), x, y);
}
}
}
void fillWithRGBAQuads (const PixelBufferAccess& dst)
{
TCU_CHECK_INTERNAL(dst.getDepth() == 1);
int width = dst.getWidth();
int height = dst.getHeight();
int left = width/2;
int top = height/2;
clear(getSubregion(dst, 0, 0, 0, left, top, 1), Vec4(1.0f, 0.0f, 0.0f, 1.0f));
clear(getSubregion(dst, left, 0, 0, width-left, top, 1), Vec4(0.0f, 1.0f, 0.0f, 1.0f));
clear(getSubregion(dst, 0, top, 0, left, height-top, 1), Vec4(0.0f, 0.0f, 1.0f, 0.0f));
clear(getSubregion(dst, left, top, 0, width-left, height-top, 1), Vec4(0.5f, 0.5f, 0.5f, 1.0f));
}
// \todo [2012-11-13 pyry] There is much better metaballs code in CL SIR value generators.
void fillWithMetaballs (const PixelBufferAccess& dst, int numBalls, deUint32 seed)
{
TCU_CHECK_INTERNAL(dst.getDepth() == 1);
std::vector<Vec2> points(numBalls);
de::Random rnd(seed);
for (int i = 0; i < numBalls; i++)
{
float x = rnd.getFloat();
float y = rnd.getFloat();
points[i] = (Vec2(x, y));
}
for (int y = 0; y < dst.getHeight(); y++)
for (int x = 0; x < dst.getWidth(); x++)
{
Vec2 p((float)x/(float)dst.getWidth(), (float)y/(float)dst.getHeight());
float sum = 0.0f;
for (std::vector<Vec2>::const_iterator i = points.begin(); i != points.end(); i++)
{
Vec2 d = p - *i;
float f = 0.01f / (d.x()*d.x() + d.y()*d.y());
sum += f;
}
dst.setPixel(Vec4(sum), x, y);
}
}
void copy (const PixelBufferAccess& dst, const ConstPixelBufferAccess& src)
{
int width = dst.getWidth();
int height = dst.getHeight();
int depth = dst.getDepth();
DE_ASSERT(src.getWidth() == width && src.getHeight() == height && src.getDepth() == depth);
if (src.getFormat() == dst.getFormat())
{
// Fast-path for matching formats.
int pixelSize = src.getFormat().getPixelSize();
for (int z = 0; z < depth; z++)
for (int y = 0; y < height; y++)
deMemcpy((deUint8*)dst.getDataPtr() + z*dst.getSlicePitch() + y*dst.getRowPitch(),
(const deUint8*)src.getDataPtr() + z*src.getSlicePitch() + y*src.getRowPitch(),
pixelSize*width);
}
else
{
TextureChannelClass srcClass = getTextureChannelClass(src.getFormat().type);
TextureChannelClass dstClass = getTextureChannelClass(dst.getFormat().type);
bool srcIsInt = srcClass == TEXTURECHANNELCLASS_SIGNED_INTEGER || srcClass == TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
bool dstIsInt = dstClass == TEXTURECHANNELCLASS_SIGNED_INTEGER || dstClass == TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
if (srcIsInt && dstIsInt)
{
for (int z = 0; z < depth; z++)
for (int y = 0; y < height; y++)
for (int x = 0; x < width; x++)
dst.setPixel(src.getPixelInt(x, y, z), x, y, z);
}
else
{
for (int z = 0; z < depth; z++)
for (int y = 0; y < height; y++)
for (int x = 0; x < width; x++)
dst.setPixel(src.getPixel(x, y, z), x, y, z);
}
}
}
void scale (const PixelBufferAccess& dst, const ConstPixelBufferAccess& src, Sampler::FilterMode filter)
{
DE_ASSERT(filter == Sampler::NEAREST || filter == Sampler::LINEAR);
Sampler sampler(Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE,
filter, filter, 0.0f, false);
float sX = (float)src.getWidth() / (float)dst.getWidth();
float sY = (float)src.getHeight() / (float)dst.getHeight();
float sZ = (float)src.getDepth() / (float)dst.getDepth();
if (dst.getDepth() == 1 && src.getDepth() == 1)
{
for (int y = 0; y < dst.getHeight(); y++)
for (int x = 0; x < dst.getWidth(); x++)
dst.setPixel(src.sample2D(sampler, filter, (x+0.5f)*sX, (y+0.5f)*sY, 0), x, y);
}
else
{
for (int z = 0; z < dst.getDepth(); z++)
for (int y = 0; y < dst.getHeight(); y++)
for (int x = 0; x < dst.getWidth(); x++)
dst.setPixel(src.sample3D(sampler, filter, (x+0.5f)*sX, (y+0.5f)*sY, (z+0.5f)*sZ), x, y, z);
}
}
void estimatePixelValueRange (const ConstPixelBufferAccess& access, Vec4& minVal, Vec4& maxVal)
{
const TextureFormat& format = access.getFormat();
switch (format.type)
{
case TextureFormat::UNORM_INT8:
case TextureFormat::UNORM_INT16:
// Normalized unsigned formats.
minVal = Vec4(0.0f);
maxVal = Vec4(1.0f);
break;
case TextureFormat::SNORM_INT8:
case TextureFormat::SNORM_INT16:
// Normalized signed formats.
minVal = Vec4(-1.0f);
maxVal = Vec4(+1.0f);
break;
default:
// \note Samples every 4/8th pixel.
minVal = Vec4(std::numeric_limits<float>::max());
maxVal = Vec4(std::numeric_limits<float>::min());
for (int z = 0; z < access.getDepth(); z += 2)
{
for (int y = 0; y < access.getHeight(); y += 2)
{
for (int x = 0; x < access.getWidth(); x += 2)
{
Vec4 p = access.getPixel(x, y, z);
minVal[0] = de::min(minVal[0], p[0]);
minVal[1] = de::min(minVal[1], p[1]);
minVal[2] = de::min(minVal[2], p[2]);
minVal[3] = de::min(minVal[3], p[3]);
maxVal[0] = de::max(maxVal[0], p[0]);
maxVal[1] = de::max(maxVal[1], p[1]);
maxVal[2] = de::max(maxVal[2], p[2]);
maxVal[3] = de::max(maxVal[3], p[3]);
}
}
}
break;
}
}
void computePixelScaleBias (const ConstPixelBufferAccess& access, Vec4& scale, Vec4& bias)
{
Vec4 minVal, maxVal;
estimatePixelValueRange(access, minVal, maxVal);
const float eps = 0.0001f;
for (int c = 0; c < 4; c++)
{
if (maxVal[c] - minVal[c] < eps)
{
scale[c] = (maxVal[c] < eps) ? 1.0f : (1.0f / maxVal[c]);
bias[c] = (c == 3) ? (1.0f - maxVal[c]*scale[c]) : (0.0f - minVal[c]*scale[c]);
}
else
{
scale[c] = 1.0f / (maxVal[c] - minVal[c]);
bias[c] = 0.0f - minVal[c]*scale[c];
}
}
}
int getCubeArrayFaceIndex (CubeFace face)
{
DE_ASSERT((int)face >= 0 && face < CUBEFACE_LAST);
switch (face)
{
case CUBEFACE_POSITIVE_X: return 0;
case CUBEFACE_NEGATIVE_X: return 1;
case CUBEFACE_POSITIVE_Y: return 2;
case CUBEFACE_NEGATIVE_Y: return 3;
case CUBEFACE_POSITIVE_Z: return 4;
case CUBEFACE_NEGATIVE_Z: return 5;
default:
return -1;
}
}
} // tcu