diff options
author | Andrew Knight <andrew.knight@digia.com> | 2014-08-05 12:59:44 +0300 |
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committer | Andrew Knight <andrew.knight@digia.com> | 2014-08-05 16:43:22 +0200 |
commit | a6a12d8c0fc918972c15268f749ecc7c90b95d6c (patch) | |
tree | cb6d986d30ef97e932ab51768854d5d9b46729d3 /src/3rdparty/angle/src/libGLESv2/renderer/vertexconversion.h | |
parent | 14f9c09542bd6cc19430473da9ce4c68f239ec7d (diff) |
ANGLE: upgrade to 2.1~07d49ef5350a
This version of ANGLE provides partial ES3 support, numerous
bug fixes, and several potentially useful vendor extensions.
All patches have been rebased. The following changes are noted:
0000-General-fixes-for-ANGLE-2.1.patch
contains compile fixes for the new ANGLE
0004-Make-it-possible-to-link-ANGLE-statically-for-single.patch
has incorporated patch 0015.
0007-Make-DX9-DX11-mutually-exclusive.patch
has been removed as it was fixed upstream.
0007-Fix-ANGLE-build-with-Microsoft-Visual-Studio-14-CTP.patch
has been moved up to fill the patch number gap.
0010-ANGLE-Enable-D3D11-for-feature-level-9-cards.patch
now contains patch 0014 and 0017.
0013-ANGLE-Allow-for-universal-program-binaries.patch
has been removed as it is no longer relevant.
0014-ANGLE-D3D11-Fix-internal-index-buffer-for-level-9-ha.patch
has been merged with patch 0010.
0015-ANGLE-Don-t-export-DLLMain-functions-for-static-buil.patch
has been merged with patch 0004.
0016-ANGLE-WinRT-Call-Trim-when-application-suspends.patch
has been removed and will be replaced by a follow-up patch using a
different technique.
0017-ANGLE-D3D11-Don-t-use-mipmaps-in-level-9-textures.patch
has been merged with patch 0010.
0018-ANGLE-WinRT-Create-swap-chain-using-physical-resolut.patch
has been removed and will be replaced by a follow-up patch extending
the EGL_ANGLE_window_fixed_size extension.
0019-Fix-ANGLE-build-with-Microsoft-Visual-Studio-14-CTP.patch
is now patch 0007.
[ChangeLog][Third-party libraries] ANGLE has been upgraded to
version 2.1, bringing partial support for OpenGL ES3 over
Direct3D 11, numerous bug fixes, and several new vendor extensions.
Change-Id: I6d95ce1480462d67228d83c1e5c74a1706b5b21c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/vertexconversion.h')
-rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/vertexconversion.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/vertexconversion.h b/src/3rdparty/angle/src/libGLESv2/renderer/vertexconversion.h new file mode 100644 index 0000000000..590b9d48a3 --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/vertexconversion.h @@ -0,0 +1,203 @@ +// +// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +// vertexconversion.h: A library of vertex conversion classes that can be used to build +// the FormatConverter objects used by the buffer conversion system. + +#ifndef LIBGLESV2_VERTEXCONVERSION_H_ +#define LIBGLESV2_VERTEXCONVERSION_H_ + +namespace rx +{ + +// Conversion types: +// static const bool identity: true if this is an identity transform, false otherwise +// static U convert(T): convert a single element from the input type to the output type +// typedef ... OutputType: the type produced by this conversion + +template <class T> +struct Identity +{ + static const bool identity = true; + + typedef T OutputType; + + static T convert(T x) + { + return x; + } +}; + +template <class FromT, class ToT> +struct Cast +{ + static const bool identity = false; + + typedef ToT OutputType; + + static ToT convert(FromT x) + { + return static_cast<ToT>(x); + } +}; + +template <class T> +struct Cast<T, T> +{ + static const bool identity = true; + + typedef T OutputType; + + static T convert(T x) + { + return static_cast<T>(x); + } +}; + +template <class T> +struct Normalize +{ + static const bool identity = false; + + typedef float OutputType; + + static float convert(T x) + { + typedef std::numeric_limits<T> NL; + float f = static_cast<float>(x); + + if (NL::is_signed) + { + // const float => VC2008 computes it at compile time + // static const float => VC2008 computes it the first time we get here, stores it to memory with static guard and all that. + const float divisor = 1.0f/(2*static_cast<float>(NL::max())+1); + return (2*f+1)*divisor; + } + else + { + return f/NL::max(); + } + } +}; + +template <class FromType, std::size_t ScaleBits> +struct FixedToFloat +{ + static const bool identity = false; + + typedef float OutputType; + + static float convert(FromType x) + { + const float divisor = 1.0f / static_cast<float>(static_cast<FromType>(1) << ScaleBits); + return static_cast<float>(x) * divisor; + } +}; + +// Widen types: +// static const unsigned int initialWidth: number of components before conversion +// static const unsigned int finalWidth: number of components after conversion + +// Float is supported at any size. +template <std::size_t N> +struct NoWiden +{ + static const std::size_t initialWidth = N; + static const std::size_t finalWidth = N; +}; + +// SHORT, norm-SHORT, norm-UNSIGNED_SHORT are supported but only with 2 or 4 components +template <std::size_t N> +struct WidenToEven +{ + static const std::size_t initialWidth = N; + static const std::size_t finalWidth = N+(N&1); +}; + +template <std::size_t N> +struct WidenToFour +{ + static const std::size_t initialWidth = N; + static const std::size_t finalWidth = 4; +}; + +// Most types have 0 and 1 that are just that. +template <class T> +struct SimpleDefaultValues +{ + static T zero() { return static_cast<T>(0); } + static T one() { return static_cast<T>(1); } +}; + +// But normalised types only store [0,1] or [-1,1] so 1.0 is represented by the max value. +template <class T> +struct NormalizedDefaultValues +{ + static T zero() { return static_cast<T>(0); } + static T one() { return std::numeric_limits<T>::max(); } +}; + +// Converter: +// static const bool identity: true if this is an identity transform (with no widening) +// static const std::size_t finalSize: number of bytes per output vertex +// static void convertArray(const void *in, std::size_t stride, std::size_t n, void *out): convert an array of vertices. Input may be strided, but output will be unstrided. + +template <class InT, class WidenRule, class Converter, class DefaultValueRule = SimpleDefaultValues<InT> > +struct VertexDataConverter +{ + typedef typename Converter::OutputType OutputType; + typedef InT InputType; + + static const bool identity = (WidenRule::initialWidth == WidenRule::finalWidth) && Converter::identity; + static const std::size_t finalSize = WidenRule::finalWidth * sizeof(OutputType); + + static void convertArray(const InputType *in, std::size_t stride, std::size_t n, OutputType *out) + { + for (std::size_t i = 0; i < n; i++) + { + const InputType *ein = pointerAddBytes(in, i * stride); + + copyComponent(out, ein, 0, static_cast<OutputType>(DefaultValueRule::zero())); + copyComponent(out, ein, 1, static_cast<OutputType>(DefaultValueRule::zero())); + copyComponent(out, ein, 2, static_cast<OutputType>(DefaultValueRule::zero())); + copyComponent(out, ein, 3, static_cast<OutputType>(DefaultValueRule::one())); + + out += WidenRule::finalWidth; + } + } + + static void convertArray(const void *in, std::size_t stride, std::size_t n, void *out) + { + return convertArray(static_cast<const InputType*>(in), stride, n, static_cast<OutputType*>(out)); + } + + private: + // Advance the given pointer by a number of bytes (not pointed-to elements). + template <class T> + static T *pointerAddBytes(T *basePtr, std::size_t numBytes) + { + return reinterpret_cast<T *>(reinterpret_cast<uintptr_t>(basePtr) + numBytes); + } + + static void copyComponent(OutputType *out, const InputType *in, std::size_t elementindex, OutputType defaultvalue) + { + if (WidenRule::finalWidth > elementindex) + { + if (WidenRule::initialWidth > elementindex) + { + out[elementindex] = Converter::convert(in[elementindex]); + } + else + { + out[elementindex] = defaultvalue; + } + } + } +}; + +} + +#endif // LIBGLESV2_VERTEXCONVERSION_H_ |