/*-------------------------------------------------------------------------
* drawElements Quality Program Reference Renderer
* -----------------------------------------------
*
* 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 Vertex attribute fetch.
*//*--------------------------------------------------------------------*/
#include "rrVertexAttrib.hpp"
#include "tcuFloat.hpp"
#include "deInt32.h"
#include "deMemory.h"
namespace rr
{
namespace
{
struct NormalOrder
{
enum
{
T0 = 0,
T1 = 1,
T2 = 2,
T3 = 3,
};
};
struct BGRAOrder
{
enum
{
T0 = 2,
T1 = 1,
T2 = 0,
T3 = 3,
};
};
// readers
template<typename SrcScalarType, typename DstScalarType, typename Order>
inline void readOrder (typename tcu::Vector<DstScalarType, 4>& dst, const int size, const void* ptr)
{
SrcScalarType aligned[4];
deMemcpy(aligned, ptr, size * sizeof(SrcScalarType));
dst[Order::T0] = DstScalarType(aligned[0]);
if (size >= 2) dst[Order::T1] = DstScalarType(aligned[1]);
if (size >= 3) dst[Order::T2] = DstScalarType(aligned[2]);
if (size >= 4) dst[Order::T3] = DstScalarType(aligned[3]);
}
template<typename SrcScalarType, typename Order>
inline void readUnormOrder (tcu::Vec4& dst, const int size, const void* ptr)
{
const deUint32 range = (deUint32)((1ull << (sizeof(SrcScalarType)*8))-1);
SrcScalarType aligned[4];
deMemcpy(aligned, ptr, size * sizeof(SrcScalarType));
dst[Order::T0] = float(aligned[0]) / float(range);
if (size >= 2) dst[Order::T1] = float(aligned[1]) / float(range);
if (size >= 3) dst[Order::T2] = float(aligned[2]) / float(range);
if (size >= 4) dst[Order::T3] = float(aligned[3]) / float(range);
}
template<typename SrcScalarType>
inline void readSnormClamp (tcu::Vec4& dst, const int size, const void* ptr)
{
// Clamped formats, GLES3-style conversion: max{c / (2^(b-1) - 1), -1 }
const deUint32 range = (deUint32)((1ull << (sizeof(SrcScalarType)*8-1))-1);
SrcScalarType aligned[4];
deMemcpy(aligned, ptr, size * sizeof(SrcScalarType));
dst[0] = de::max(-1.0f, float(aligned[0]) / float(range));
if (size >= 2) dst[1] = de::max(-1.0f, float(aligned[1]) / float(range));
if (size >= 3) dst[2] = de::max(-1.0f, float(aligned[2]) / float(range));
if (size >= 4) dst[3] = de::max(-1.0f, float(aligned[3]) / float(range));
}
template<typename SrcScalarType>
inline void readSnormScale (tcu::Vec4& dst, const int size, const void* ptr)
{
// Scaled formats, GLES2-style conversion: (2c + 1) / (2^b - 1)
const deUint32 range = (deUint32)((1ull << (sizeof(SrcScalarType)*8))-1);
SrcScalarType aligned[4];
deMemcpy(aligned, ptr, size * sizeof(SrcScalarType));
dst[0] = (float(aligned[0]) * 2.0f + 1.0f) / float(range);
if (size >= 2) dst[1] = (float(aligned[1]) * 2.0f + 1.0f) / float(range);
if (size >= 3) dst[2] = (float(aligned[2]) * 2.0f + 1.0f) / float(range);
if (size >= 4) dst[3] = (float(aligned[3]) * 2.0f + 1.0f) / float(range);
}
inline void readHalf (tcu::Vec4& dst, const int size, const void* ptr)
{
deUint16 aligned[4];
deMemcpy(aligned, ptr, size * sizeof(deUint16));
dst[0] = tcu::Float16(aligned[0]).asFloat();
if (size >= 2) dst[1] = tcu::Float16(aligned[1]).asFloat();
if (size >= 3) dst[2] = tcu::Float16(aligned[2]).asFloat();
if (size >= 4) dst[3] = tcu::Float16(aligned[3]).asFloat();
}
inline void readFixed (tcu::Vec4& dst, const int size, const void* ptr)
{
deInt32 aligned[4];
deMemcpy(aligned, ptr, size * sizeof(deInt32));
dst[0] = float(aligned[0]) / float(1 << 16);
if (size >= 2) dst[1] = float(aligned[1]) / float(1 << 16);
if (size >= 3) dst[2] = float(aligned[2]) / float(1 << 16);
if (size >= 4) dst[3] = float(aligned[3]) / float(1 << 16);
}
inline void readDouble (tcu::Vec4& dst, const int size, const void* ptr)
{
double aligned[4];
deMemcpy(aligned, ptr, size * sizeof(double));
dst[0] = float(aligned[0]);
if (size >= 2) dst[1] = float(aligned[1]);
if (size >= 3) dst[2] = float(aligned[2]);
if (size >= 4) dst[3] = float(aligned[3]);
}
template <int integerLen>
inline deInt32 extendSign (deUint32 integer)
{
return deUint32(0 - deInt32((integer & (1 << (integerLen - 1))) << 1)) | integer;
}
template<typename DstScalarType>
inline void readUint2101010Rev (typename tcu::Vector<DstScalarType, 4>& dst, const int size, const void* ptr)
{
deUint32 aligned;
deMemcpy(&aligned, ptr, sizeof(deUint32));
dst[0] = DstScalarType((aligned >> 0) & ((1 << 10) - 1));
if (size >= 2) dst[1] = DstScalarType((aligned >> 10) & ((1 << 10) - 1));
if (size >= 3) dst[2] = DstScalarType((aligned >> 20) & ((1 << 10) - 1));
if (size >= 4) dst[3] = DstScalarType((aligned >> 30) & ((1 << 2) - 1));
}
template<typename DstScalarType>
inline void readInt2101010Rev (typename tcu::Vector<DstScalarType, 4>& dst, const int size, const void* ptr)
{
deUint32 aligned;
deMemcpy(&aligned, ptr, sizeof(deUint32));
dst[0] = (DstScalarType)extendSign<10>((aligned >> 0) & ((1 << 10) - 1));
if (size >= 2) dst[1] = (DstScalarType)extendSign<10>((aligned >> 10) & ((1 << 10) - 1));
if (size >= 3) dst[2] = (DstScalarType)extendSign<10>((aligned >> 20) & ((1 << 10) - 1));
if (size >= 4) dst[3] = (DstScalarType)extendSign< 2>((aligned >> 30) & ((1 << 2) - 1));
}
template<typename Order>
inline void readUnorm2101010RevOrder (tcu::Vec4& dst, const int size, const void* ptr)
{
const deUint32 range10 = (deUint32)((1ull << 10)-1);
const deUint32 range2 = (deUint32)((1ull << 2)-1);
deUint32 aligned;
deMemcpy(&aligned, ptr, sizeof(deUint32));
dst[Order::T0] = float((aligned >> 0) & ((1 << 10) - 1)) / float(range10);
if (size >= 2) dst[Order::T1] = float((aligned >> 10) & ((1 << 10) - 1)) / float(range10);
if (size >= 3) dst[Order::T2] = float((aligned >> 20) & ((1 << 10) - 1)) / float(range10);
if (size >= 4) dst[Order::T3] = float((aligned >> 30) & ((1 << 2) - 1)) / float(range2);
}
template<typename Order>
inline void readSnorm2101010RevClampOrder (tcu::Vec4& dst, const int size, const void* ptr)
{
// Clamped formats, GLES3-style conversion: max{c / (2^(b-1) - 1), -1 }
const deUint32 range10 = (deUint32)((1ull << (10-1))-1);
const deUint32 range2 = (deUint32)((1ull << ( 2-1))-1);
deUint32 aligned;
deMemcpy(&aligned, ptr, sizeof(deUint32));
dst[Order::T0] = de::max(-1.0f, float(extendSign<10>((aligned >> 0) & ((1 << 10) - 1))) / float(range10));
if (size >= 2) dst[Order::T1] = de::max(-1.0f, float(extendSign<10>((aligned >> 10) & ((1 << 10) - 1))) / float(range10));
if (size >= 3) dst[Order::T2] = de::max(-1.0f, float(extendSign<10>((aligned >> 20) & ((1 << 10) - 1))) / float(range10));
if (size >= 4) dst[Order::T3] = de::max(-1.0f, float(extendSign< 2>((aligned >> 30) & ((1 << 2) - 1))) / float(range2));
}
template<typename Order>
inline void readSnorm2101010RevScaleOrder (tcu::Vec4& dst, const int size, const void* ptr)
{
// Scaled formats, GLES2-style conversion: (2c + 1) / (2^b - 1)
const deUint32 range10 = (deUint32)((1ull << 10)-1);
const deUint32 range2 = (deUint32)((1ull << 2)-1);
deUint32 aligned;
deMemcpy(&aligned, ptr, sizeof(deUint32));
dst[Order::T0] = (float(extendSign<10>((aligned >> 0) & ((1 << 10) - 1))) * 2.0f + 1.0f) / float(range10);
if (size >= 2) dst[Order::T1] = (float(extendSign<10>((aligned >> 10) & ((1 << 10) - 1))) * 2.0f + 1.0f) / float(range10);
if (size >= 3) dst[Order::T2] = (float(extendSign<10>((aligned >> 20) & ((1 << 10) - 1))) * 2.0f + 1.0f) / float(range10);
if (size >= 4) dst[Order::T3] = (float(extendSign< 2>((aligned >> 30) & ((1 << 2) - 1))) * 2.0f + 1.0f) / float(range2);
}
// ordered readers
template<typename SrcScalarType, typename DstScalarType>
inline void read (typename tcu::Vector<DstScalarType, 4>& dst, const int size, const void* ptr)
{
readOrder<SrcScalarType, DstScalarType, NormalOrder>(dst, size, ptr);
}
template<typename SrcScalarType>
inline void readUnorm (tcu::Vec4& dst, const int size, const void* ptr)
{
readUnormOrder<SrcScalarType, NormalOrder>(dst, size, ptr);
}
template<typename SrcScalarType>
inline void readUnormBGRA (tcu::Vec4& dst, const int size, const void* ptr)
{
readUnormOrder<SrcScalarType, BGRAOrder>(dst, size, ptr);
}
inline void readUnorm2101010Rev (tcu::Vec4& dst, const int size, const void* ptr)
{
readUnorm2101010RevOrder<NormalOrder>(dst, size, ptr);
}
inline void readUnorm2101010RevBGRA (tcu::Vec4& dst, const int size, const void* ptr)
{
readUnorm2101010RevOrder<BGRAOrder>(dst, size, ptr);
}
inline void readSnorm2101010RevClamp (tcu::Vec4& dst, const int size, const void* ptr)
{
readSnorm2101010RevClampOrder<NormalOrder>(dst, size, ptr);
}
inline void readSnorm2101010RevClampBGRA (tcu::Vec4& dst, const int size, const void* ptr)
{
readSnorm2101010RevClampOrder<BGRAOrder>(dst, size, ptr);
}
inline void readSnorm2101010RevScale (tcu::Vec4& dst, const int size, const void* ptr)
{
readSnorm2101010RevScaleOrder<NormalOrder>(dst, size, ptr);
}
inline void readSnorm2101010RevScaleBGRA (tcu::Vec4& dst, const int size, const void* ptr)
{
readSnorm2101010RevScaleOrder<BGRAOrder>(dst, size, ptr);
}
// utils
void readFloat (tcu::Vec4& dst, const VertexAttribType type, const int size, const void* ptr)
{
switch (type)
{
case VERTEXATTRIBTYPE_FLOAT: read<float> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_HALF: readHalf (dst, size, ptr); break;
case VERTEXATTRIBTYPE_FIXED: readFixed (dst, size, ptr); break;
case VERTEXATTRIBTYPE_DOUBLE: readDouble (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UNORM8: readUnorm<deUint8> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UNORM16: readUnorm<deUint16> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UNORM32: readUnorm<deUint32> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV: readUnorm2101010Rev (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM8_CLAMP: readSnormClamp<deInt8> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM16_CLAMP: readSnormClamp<deInt16> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM32_CLAMP: readSnormClamp<deInt32> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP: readSnorm2101010RevClamp (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM8_SCALE: readSnormScale<deInt8> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM16_SCALE: readSnormScale<deInt16> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM32_SCALE: readSnormScale<deInt32> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE: readSnorm2101010RevScale (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UINT8: read<deUint8> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UINT16: read<deUint16> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UINT32: read<deUint32> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_INT8: read<deInt8> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_INT16: read<deInt16> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_INT32: read<deInt32> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UINT_2_10_10_10_REV: readUint2101010Rev (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_INT_2_10_10_10_REV: readInt2101010Rev (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UNORM8_BGRA: readUnormBGRA<deUint8> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV_BGRA: readUnorm2101010RevBGRA (dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP_BGRA: readSnorm2101010RevClampBGRA(dst, size, ptr); break;
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE_BGRA: readSnorm2101010RevScaleBGRA(dst, size, ptr); break;
case VERTEXATTRIBTYPE_PURE_UINT8:
case VERTEXATTRIBTYPE_PURE_UINT16:
case VERTEXATTRIBTYPE_PURE_UINT32:
case VERTEXATTRIBTYPE_PURE_INT8:
case VERTEXATTRIBTYPE_PURE_INT16:
case VERTEXATTRIBTYPE_PURE_INT32:
DE_FATAL("Invalid read");
default:
DE_ASSERT(false);
}
}
void readInt (tcu::IVec4& dst, const VertexAttribType type, const int size, const void* ptr)
{
switch (type)
{
case VERTEXATTRIBTYPE_PURE_INT8: read<deInt8> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_PURE_INT16: read<deInt16> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_PURE_INT32: read<deInt32> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_FLOAT:
case VERTEXATTRIBTYPE_HALF:
case VERTEXATTRIBTYPE_FIXED:
case VERTEXATTRIBTYPE_DOUBLE:
case VERTEXATTRIBTYPE_NONPURE_UNORM8:
case VERTEXATTRIBTYPE_NONPURE_UNORM16:
case VERTEXATTRIBTYPE_NONPURE_UNORM32:
case VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV:
case VERTEXATTRIBTYPE_NONPURE_SNORM8_CLAMP:
case VERTEXATTRIBTYPE_NONPURE_SNORM16_CLAMP:
case VERTEXATTRIBTYPE_NONPURE_SNORM32_CLAMP:
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP:
case VERTEXATTRIBTYPE_NONPURE_SNORM8_SCALE:
case VERTEXATTRIBTYPE_NONPURE_SNORM16_SCALE:
case VERTEXATTRIBTYPE_NONPURE_SNORM32_SCALE:
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE:
case VERTEXATTRIBTYPE_NONPURE_UINT8:
case VERTEXATTRIBTYPE_NONPURE_UINT16:
case VERTEXATTRIBTYPE_NONPURE_UINT32:
case VERTEXATTRIBTYPE_NONPURE_INT8:
case VERTEXATTRIBTYPE_NONPURE_INT16:
case VERTEXATTRIBTYPE_NONPURE_INT32:
case VERTEXATTRIBTYPE_NONPURE_UINT_2_10_10_10_REV:
case VERTEXATTRIBTYPE_NONPURE_INT_2_10_10_10_REV:
case VERTEXATTRIBTYPE_PURE_UINT8:
case VERTEXATTRIBTYPE_PURE_UINT16:
case VERTEXATTRIBTYPE_PURE_UINT32:
case VERTEXATTRIBTYPE_NONPURE_UNORM8_BGRA:
case VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV_BGRA:
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP_BGRA:
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE_BGRA:
DE_FATAL("Invalid read");
default:
DE_ASSERT(false);
}
}
void readUint (tcu::UVec4& dst, const VertexAttribType type, const int size, const void* ptr)
{
switch (type)
{
case VERTEXATTRIBTYPE_PURE_UINT8: read<deUint8> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_PURE_UINT16: read<deUint16> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_PURE_UINT32: read<deUint32> (dst, size, ptr); break;
case VERTEXATTRIBTYPE_FLOAT:
case VERTEXATTRIBTYPE_HALF:
case VERTEXATTRIBTYPE_FIXED:
case VERTEXATTRIBTYPE_DOUBLE:
case VERTEXATTRIBTYPE_NONPURE_UNORM8:
case VERTEXATTRIBTYPE_NONPURE_UNORM16:
case VERTEXATTRIBTYPE_NONPURE_UNORM32:
case VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV:
case VERTEXATTRIBTYPE_NONPURE_SNORM8_CLAMP:
case VERTEXATTRIBTYPE_NONPURE_SNORM16_CLAMP:
case VERTEXATTRIBTYPE_NONPURE_SNORM32_CLAMP:
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP:
case VERTEXATTRIBTYPE_NONPURE_SNORM8_SCALE:
case VERTEXATTRIBTYPE_NONPURE_SNORM16_SCALE:
case VERTEXATTRIBTYPE_NONPURE_SNORM32_SCALE:
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE:
case VERTEXATTRIBTYPE_NONPURE_UINT8:
case VERTEXATTRIBTYPE_NONPURE_UINT16:
case VERTEXATTRIBTYPE_NONPURE_UINT32:
case VERTEXATTRIBTYPE_NONPURE_INT8:
case VERTEXATTRIBTYPE_NONPURE_INT16:
case VERTEXATTRIBTYPE_NONPURE_INT32:
case VERTEXATTRIBTYPE_NONPURE_UINT_2_10_10_10_REV:
case VERTEXATTRIBTYPE_NONPURE_INT_2_10_10_10_REV:
case VERTEXATTRIBTYPE_PURE_INT8:
case VERTEXATTRIBTYPE_PURE_INT16:
case VERTEXATTRIBTYPE_PURE_INT32:
case VERTEXATTRIBTYPE_NONPURE_UNORM8_BGRA:
case VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV_BGRA:
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP_BGRA:
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE_BGRA:
DE_FATAL("Invalid read");
default:
DE_ASSERT(false);
}
}
int getComponentSize (const VertexAttribType type)
{
switch (type)
{
case VERTEXATTRIBTYPE_FLOAT: return 4;
case VERTEXATTRIBTYPE_HALF: return 2;
case VERTEXATTRIBTYPE_FIXED: return 4;
case VERTEXATTRIBTYPE_DOUBLE: return (int)sizeof(double);
case VERTEXATTRIBTYPE_NONPURE_UNORM8: return 1;
case VERTEXATTRIBTYPE_NONPURE_UNORM16: return 2;
case VERTEXATTRIBTYPE_NONPURE_UNORM32: return 4;
case VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV: return (int)sizeof(deUint32)/4;
case VERTEXATTRIBTYPE_NONPURE_SNORM8_CLAMP: return 1;
case VERTEXATTRIBTYPE_NONPURE_SNORM16_CLAMP: return 2;
case VERTEXATTRIBTYPE_NONPURE_SNORM32_CLAMP: return 4;
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP: return (int)sizeof(deUint32)/4;
case VERTEXATTRIBTYPE_NONPURE_SNORM8_SCALE: return 1;
case VERTEXATTRIBTYPE_NONPURE_SNORM16_SCALE: return 2;
case VERTEXATTRIBTYPE_NONPURE_SNORM32_SCALE: return 4;
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE: return (int)sizeof(deUint32)/4;
case VERTEXATTRIBTYPE_NONPURE_UINT8: return 1;
case VERTEXATTRIBTYPE_NONPURE_UINT16: return 2;
case VERTEXATTRIBTYPE_NONPURE_UINT32: return 4;
case VERTEXATTRIBTYPE_NONPURE_INT8: return 1;
case VERTEXATTRIBTYPE_NONPURE_INT16: return 2;
case VERTEXATTRIBTYPE_NONPURE_INT32: return 4;
case VERTEXATTRIBTYPE_NONPURE_UINT_2_10_10_10_REV: return (int)sizeof(deUint32)/4;
case VERTEXATTRIBTYPE_NONPURE_INT_2_10_10_10_REV: return (int)sizeof(deUint32)/4;
case VERTEXATTRIBTYPE_PURE_UINT8: return 1;
case VERTEXATTRIBTYPE_PURE_UINT16: return 2;
case VERTEXATTRIBTYPE_PURE_UINT32: return 4;
case VERTEXATTRIBTYPE_PURE_INT8: return 1;
case VERTEXATTRIBTYPE_PURE_INT16: return 2;
case VERTEXATTRIBTYPE_PURE_INT32: return 4;
case VERTEXATTRIBTYPE_NONPURE_UNORM8_BGRA: return 1;
case VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV_BGRA: return (int)sizeof(deUint32)/4;
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP_BGRA: return (int)sizeof(deUint32)/4;
case VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE_BGRA: return (int)sizeof(deUint32)/4;
default:
DE_ASSERT(false);
return 0;
}
}
} // anonymous
bool isValidVertexAttrib (const VertexAttrib& vertexAttrib)
{
// Trivial range checks.
if (!de::inBounds<int>(vertexAttrib.type, 0, VERTEXATTRIBTYPE_LAST) ||
!de::inRange(vertexAttrib.size, 0, 4) ||
vertexAttrib.instanceDivisor < 0)
return false;
// Generic attributes
if (!vertexAttrib.pointer && vertexAttrib.type != VERTEXATTRIBTYPE_DONT_CARE)
return false;
// Packed formats
if ((vertexAttrib.type == VERTEXATTRIBTYPE_NONPURE_INT_2_10_10_10_REV ||
vertexAttrib.type == VERTEXATTRIBTYPE_NONPURE_UINT_2_10_10_10_REV ||
vertexAttrib.type == VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV ||
vertexAttrib.type == VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP ||
vertexAttrib.type == VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE ||
vertexAttrib.type == VERTEXATTRIBTYPE_NONPURE_UNORM_2_10_10_10_REV_BGRA ||
vertexAttrib.type == VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_CLAMP_BGRA ||
vertexAttrib.type == VERTEXATTRIBTYPE_NONPURE_SNORM_2_10_10_10_REV_SCALE_BGRA) &&
vertexAttrib.size != 4)
return false;
return true;
}
void readVertexAttrib (tcu::Vec4& dst, const VertexAttrib& vertexAttrib, const int instanceNdx, const int vertexNdx)
{
DE_ASSERT(isValidVertexAttrib(vertexAttrib));
if (vertexAttrib.pointer)
{
const int elementNdx = (vertexAttrib.instanceDivisor != 0) ? (instanceNdx / vertexAttrib.instanceDivisor) : vertexNdx;
const int compSize = getComponentSize(vertexAttrib.type);
const int stride = (vertexAttrib.stride != 0) ? (vertexAttrib.stride) : (vertexAttrib.size*compSize);
const int byteOffset = elementNdx*stride;
dst = tcu::Vec4(0, 0, 0, 1); // defaults
readFloat(dst, vertexAttrib.type, vertexAttrib.size, (const deUint8*)vertexAttrib.pointer + byteOffset);
}
else
{
dst = vertexAttrib.generic.get<float>();
}
}
void readVertexAttrib (tcu::IVec4& dst, const VertexAttrib& vertexAttrib, const int instanceNdx, const int vertexNdx)
{
DE_ASSERT(isValidVertexAttrib(vertexAttrib));
if (vertexAttrib.pointer)
{
const int elementNdx = (vertexAttrib.instanceDivisor != 0) ? (instanceNdx / vertexAttrib.instanceDivisor) : vertexNdx;
const int compSize = getComponentSize(vertexAttrib.type);
const int stride = (vertexAttrib.stride != 0) ? (vertexAttrib.stride) : (vertexAttrib.size*compSize);
const int byteOffset = elementNdx*stride;
dst = tcu::IVec4(0, 0, 0, 1); // defaults
readInt(dst, vertexAttrib.type, vertexAttrib.size, (const deUint8*)vertexAttrib.pointer + byteOffset);
}
else
{
dst = vertexAttrib.generic.get<deInt32>();
}
}
void readVertexAttrib (tcu::UVec4& dst, const VertexAttrib& vertexAttrib, const int instanceNdx, const int vertexNdx)
{
DE_ASSERT(isValidVertexAttrib(vertexAttrib));
if (vertexAttrib.pointer)
{
const int elementNdx = (vertexAttrib.instanceDivisor != 0) ? (instanceNdx / vertexAttrib.instanceDivisor) : vertexNdx;
const int compSize = getComponentSize(vertexAttrib.type);
const int stride = (vertexAttrib.stride != 0) ? (vertexAttrib.stride) : (vertexAttrib.size*compSize);
const int byteOffset = elementNdx*stride;
dst = tcu::UVec4(0, 0, 0, 1); // defaults
readUint(dst, vertexAttrib.type, vertexAttrib.size, (const deUint8*)vertexAttrib.pointer + byteOffset);
}
else
{
dst = vertexAttrib.generic.get<deUint32>();
}
}
} // rr