Christophe Riccio
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///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Mathematics (glm.g-truc.net)
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///
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/// Copyright (c) 2005 - 2013 G-Truc Creation (www.g-truc.net)
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
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/// of this software and associated documentation files (the "Software"), to deal
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/// in the Software without restriction, including without limitation the rights
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/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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/// copies of the Software, and to permit persons to whom the Software is
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/// furnished to do so, subject to the following conditions:
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///
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/// The above copyright notice and this permission notice shall be included in
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/// all copies or substantial portions of the Software.
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///
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/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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/// THE SOFTWARE.
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///
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/// @ref gtc_packing
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/// @file glm/gtc/packing.hpp
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/// @date 2013-08-08 / 2013-08-08
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/// @author Christophe Riccio
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///
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/// @see core (dependence)
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///
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/// @defgroup gtc_packing GLM_GTC_packing
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/// @ingroup gtc
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///
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/// @brief This extension provides a set of function to convert vertors to packed
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/// formats.
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///
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/// <glm/gtc/packing.hpp> need to be included to use these features.
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef GLM_GTC_packing |
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#define GLM_GTC_packing GLM_VERSION |
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// Dependency:
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#include "../glm.hpp" |
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#if(defined(GLM_MESSAGES) && !defined(glm_ext)) |
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# pragma message("GLM: GLM_GTC_packing extension included") |
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#endif |
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namespace glm |
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{ |
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/// @addtogroup gtc_packing
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/// @{
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/// First, converts the normalized floating-point value v into a 8-bit integer value.
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/// Then, the results are packed into the returned 8-bit unsigned integer.
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///
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/// The conversion for component c of v to fixed point is done as follows:
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/// packUnorm1x8: round(clamp(c, 0, +1) * 255.0)
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///
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/// @see gtc_packing
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/// @see uint16 packUnorm2x8(vec2 const & v)
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/// @see uint32 packUnorm4x8(vec4 const & v)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packUnorm4x8.xml">GLSL packUnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL uint8 packUnorm1x8(float const & v); |
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/// Convert a single 8-bit integer to a normalized floating-point value.
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///
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/// The conversion for unpacked fixed-point value f to floating point is done as follows:
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/// unpackUnorm4x8: f / 255.0
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///
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/// @see gtc_packing
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/// @see vec2 unpackUnorm2x8(uint16 p)
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/// @see vec4 unpackUnorm4x8(uint32 p)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackUnorm4x8.xml">GLSL unpackUnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL float unpackUnorm1x8(uint8 pdf); |
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/// First, converts each component of the normalized floating-point value v into 8-bit integer values.
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/// Then, the results are packed into the returned 16-bit unsigned integer.
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///
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/// The conversion for component c of v to fixed point is done as follows:
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/// packUnorm2x8: round(clamp(c, 0, +1) * 255.0)
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///
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/// The first component of the vector will be written to the least significant bits of the output;
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/// the last component will be written to the most significant bits.
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///
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/// @see gtc_packing
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/// @see uint8 packUnorm1x8(float const & v)
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/// @see uint32 packUnorm4x8(vec4 const & v)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packUnorm4x8.xml">GLSL packUnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL uint16 packUnorm2x8(vec2 const & v); |
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/// First, unpacks a single 16-bit unsigned integer p into a pair of 8-bit unsigned integers.
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/// Then, each component is converted to a normalized floating-point value to generate the returned two-component vector.
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///
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/// The conversion for unpacked fixed-point value f to floating point is done as follows:
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/// unpackUnorm4x8: f / 255.0
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///
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/// The first component of the returned vector will be extracted from the least significant bits of the input;
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/// the last component will be extracted from the most significant bits.
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///
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/// @see gtc_packing
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/// @see float unpackUnorm1x8(uint8 v)
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/// @see vec4 unpackUnorm4x8(uint32 p)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackUnorm4x8.xml">GLSL unpackUnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL vec2 unpackUnorm2x8(uint16 p); |
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/// First, converts the normalized floating-point value v into 8-bit integer value.
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/// Then, the results are packed into the returned 8-bit unsigned integer.
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///
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/// The conversion to fixed point is done as follows:
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/// packSnorm1x8: round(clamp(s, -1, +1) * 127.0)
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///
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/// @see gtc_packing
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/// @see uint16 packSnorm2x8(vec2 const & v)
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/// @see uint32 packSnorm4x8(vec4 const & v)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packSnorm4x8.xml">GLSL packSnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL uint8 packSnorm1x8(float const & s); |
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/// First, unpacks a single 8-bit unsigned integer p into a single 8-bit signed integers.
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/// Then, the value is converted to a normalized floating-point value to generate the returned scalar.
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///
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/// The conversion for unpacked fixed-point value f to floating point is done as follows:
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/// unpackSnorm1x8: clamp(f / 127.0, -1, +1)
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///
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/// @see gtc_packing
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/// @see vec2 unpackSnorm2x8(uint16 p)
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/// @see vec4 unpackSnorm4x8(uint32 p)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackSnorm4x8.xml">GLSL unpackSnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL float unpackSnorm1x8(uint8 p); |
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/// First, converts each component of the normalized floating-point value v into 8-bit integer values.
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/// Then, the results are packed into the returned 16-bit unsigned integer.
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///
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/// The conversion for component c of v to fixed point is done as follows:
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/// packSnorm2x8: round(clamp(c, -1, +1) * 127.0)
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///
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/// The first component of the vector will be written to the least significant bits of the output;
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/// the last component will be written to the most significant bits.
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///
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/// @see gtc_packing
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/// @see uint8 packSnorm1x8(float const & v)
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/// @see uint32 packSnorm4x8(vec4 const & v)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packSnorm4x8.xml">GLSL packSnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL uint16 packSnorm2x8(vec2 const & v); |
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/// First, unpacks a single 16-bit unsigned integer p into a pair of 8-bit signed integers.
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/// Then, each component is converted to a normalized floating-point value to generate the returned two-component vector.
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///
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/// The conversion for unpacked fixed-point value f to floating point is done as follows:
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/// unpackSnorm2x8: clamp(f / 127.0, -1, +1)
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///
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/// The first component of the returned vector will be extracted from the least significant bits of the input;
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/// the last component will be extracted from the most significant bits.
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///
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/// @see gtc_packing
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/// @see float unpackSnorm1x8(uint8 p)
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/// @see vec4 unpackSnorm4x8(uint32 p)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackSnorm4x8.xml">GLSL unpackSnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL vec2 unpackSnorm2x8(uint16 p); |
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/// First, converts the normalized floating-point value v into a 16-bit integer value.
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/// Then, the results are packed into the returned 16-bit unsigned integer.
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///
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/// The conversion for component c of v to fixed point is done as follows:
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/// packUnorm1x16: round(clamp(c, 0, +1) * 65535.0)
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///
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/// @see gtc_packing
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/// @see uint16 packSnorm1x16(float const & v)
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/// @see uint64 packSnorm4x16(vec4 const & v)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packUnorm4x8.xml">GLSL packUnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL uint16 packUnorm1x16(float v); |
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/// First, unpacks a single 16-bit unsigned integer p into a of 16-bit unsigned integers.
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/// Then, the value is converted to a normalized floating-point value to generate the returned scalar.
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///
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/// The conversion for unpacked fixed-point value f to floating point is done as follows:
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/// unpackUnorm1x16: f / 65535.0
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///
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/// @see gtc_packing
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/// @see vec2 unpackUnorm2x16(uint32 p)
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/// @see vec4 unpackUnorm4x16(uint64 p)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackUnorm2x16.xml">GLSL unpackUnorm2x16 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL float unpackUnorm1x16(uint16 p); |
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/// First, converts each component of the normalized floating-point value v into 16-bit integer values.
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/// Then, the results are packed into the returned 64-bit unsigned integer.
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///
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/// The conversion for component c of v to fixed point is done as follows:
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/// packUnorm4x16: round(clamp(c, 0, +1) * 65535.0)
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///
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/// The first component of the vector will be written to the least significant bits of the output;
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/// the last component will be written to the most significant bits.
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///
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/// @see gtc_packing
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/// @see uint16 packUnorm1x16(float const & v)
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/// @see uint32 packUnorm2x16(vec2 const & v)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packUnorm4x8.xml">GLSL packUnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL uint64 packUnorm4x16(vec4 const & v); |
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/// First, unpacks a single 64-bit unsigned integer p into four 16-bit unsigned integers.
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/// Then, each component is converted to a normalized floating-point value to generate the returned four-component vector.
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///
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/// The conversion for unpacked fixed-point value f to floating point is done as follows:
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/// unpackUnormx4x16: f / 65535.0
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///
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/// The first component of the returned vector will be extracted from the least significant bits of the input;
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/// the last component will be extracted from the most significant bits.
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///
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/// @see gtc_packing
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/// @see float unpackUnorm1x16(uint16 p)
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/// @see vec2 unpackUnorm2x16(uint32 p)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackUnorm2x16.xml">GLSL unpackUnorm2x16 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL vec4 unpackUnorm4x16(uint64 const & p); |
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/// First, converts the normalized floating-point value v into 16-bit integer value.
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/// Then, the results are packed into the returned 16-bit unsigned integer.
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///
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/// The conversion to fixed point is done as follows:
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/// packSnorm1x8: round(clamp(s, -1, +1) * 32767.0)
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///
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/// @see gtc_packing
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/// @see uint32 packSnorm2x16(vec2 const & v)
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/// @see uint64 packSnorm4x16(vec4 const & v)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packSnorm4x8.xml">GLSL packSnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL uint16 packSnorm1x16(float v); |
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/// First, unpacks a single 16-bit unsigned integer p into a single 16-bit signed integers.
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/// Then, each component is converted to a normalized floating-point value to generate the returned scalar.
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///
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/// The conversion for unpacked fixed-point value f to floating point is done as follows:
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/// unpackSnorm1x16: clamp(f / 32767.0, -1, +1)
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///
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/// @see gtc_packing
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/// @see vec2 unpackSnorm2x16(uint32 p)
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/// @see vec4 unpackSnorm4x16(uint64 p)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackSnorm1x16.xml">GLSL unpackSnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL float unpackSnorm1x16(uint16 p); |
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/// First, converts each component of the normalized floating-point value v into 16-bit integer values.
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/// Then, the results are packed into the returned 64-bit unsigned integer.
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///
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/// The conversion for component c of v to fixed point is done as follows:
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/// packSnorm2x8: round(clamp(c, -1, +1) * 32767.0)
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///
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/// The first component of the vector will be written to the least significant bits of the output;
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/// the last component will be written to the most significant bits.
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///
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/// @see gtc_packing
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/// @see uint16 packSnorm1x16(float const & v)
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/// @see uint32 packSnorm2x16(vec2 const & v)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packSnorm4x8.xml">GLSL packSnorm4x8 man page</a>
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/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
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GLM_FUNC_DECL uint64 packSnorm4x16(vec4 const & v); |
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/// First, unpacks a single 64-bit unsigned integer p into four 16-bit signed integers.
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/// Then, each component is converted to a normalized floating-point value to generate the returned four-component vector.
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///
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/// The conversion for unpacked fixed-point value f to floating point is done as follows:
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/// unpackSnorm4x16: clamp(f / 32767.0, -1, +1)
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///
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/// The first component of the returned vector will be extracted from the least significant bits of the input;
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/// the last component will be extracted from the most significant bits.
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///
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/// @see gtc_packing
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|
/// @see float unpackSnorm1x16(uint16 p)
|
||||||
|
/// @see vec2 unpackSnorm2x16(uint32 p)
|
||||||
|
/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackSnorm2x16.xml">GLSL unpackSnorm4x8 man page</a>
|
||||||
|
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
|
||||||
|
GLM_FUNC_DECL vec4 unpackSnorm4x16(uint64 const & p); |
||||||
|
|
||||||
|
/// Returns an unsigned integer obtained by converting the components of a floating-point scalar
|
||||||
|
/// to the 16-bit floating-point representation found in the OpenGL Specification,
|
||||||
|
/// and then packing this 16-bit value into a 16-bit unsigned integer.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see uint32 packHalf2x16(vec2 const & v)
|
||||||
|
/// @see uint64 packHalf4x16(vec4 const & v)
|
||||||
|
/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packHalf2x16.xml">GLSL packHalf2x16 man page</a>
|
||||||
|
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
|
||||||
|
GLM_FUNC_DECL uint16 packHalf1x16(float const & v); |
||||||
|
|
||||||
|
/// Returns a floating-point scalar with components obtained by unpacking a 16-bit unsigned integer into a 16-bit value,
|
||||||
|
/// interpreted as a 16-bit floating-point number according to the OpenGL Specification,
|
||||||
|
/// and converting it to 32-bit floating-point values.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see vec2 unpackHalf2x16(uint32 const & v)
|
||||||
|
/// @see vec4 unpackHalf4x16(uint64 const & v)
|
||||||
|
/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackHalf2x16.xml">GLSL unpackHalf2x16 man page</a>
|
||||||
|
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
|
||||||
|
GLM_FUNC_DECL float unpackHalf1x16(uint16 const & v); |
||||||
|
|
||||||
|
/// Returns an unsigned integer obtained by converting the components of a four-component floating-point vector
|
||||||
|
/// to the 16-bit floating-point representation found in the OpenGL Specification,
|
||||||
|
/// and then packing these four 16-bit values into a 64-bit unsigned integer.
|
||||||
|
/// The first vector component specifies the 16 least-significant bits of the result;
|
||||||
|
/// the forth component specifies the 16 most-significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see uint16 packHalf1x16(float const & v)
|
||||||
|
/// @see uint32 packHalf2x16(vec2 const & v)
|
||||||
|
/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/packHalf2x16.xml">GLSL packHalf2x16 man page</a>
|
||||||
|
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
|
||||||
|
GLM_FUNC_DECL uint64 packHalf4x16(vec4 const & v); |
||||||
|
|
||||||
|
/// Returns a four-component floating-point vector with components obtained by unpacking a 64-bit unsigned integer into four 16-bit values,
|
||||||
|
/// interpreting those values as 16-bit floating-point numbers according to the OpenGL Specification,
|
||||||
|
/// and converting them to 32-bit floating-point values.
|
||||||
|
/// The first component of the vector is obtained from the 16 least-significant bits of v;
|
||||||
|
/// the forth component is obtained from the 16 most-significant bits of v.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see float unpackHalf1x16(uint16 const & v)
|
||||||
|
/// @see vec2 unpackHalf2x16(uint32 const & v)
|
||||||
|
/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackHalf2x16.xml">GLSL unpackHalf2x16 man page</a>
|
||||||
|
/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.4 Floating-Point Pack and Unpack Functions</a>
|
||||||
|
GLM_FUNC_DECL vec4 unpackHalf4x16(uint64 const & p); |
||||||
|
|
||||||
|
/// Returns an unsigned integer obtained by converting the components of a four-component signed integer vector
|
||||||
|
/// to the 10-10-10-2-bit signed integer representation found in the OpenGL Specification,
|
||||||
|
/// and then packing these four values into a 32-bit unsigned integer.
|
||||||
|
/// The first vector component specifies the 10 least-significant bits of the result;
|
||||||
|
/// the forth component specifies the 2 most-significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see uint32 packI3x10_1x2(uvec4 const & v)
|
||||||
|
/// @see uint32 packSnorm3x10_1x2(vec4 const & v)
|
||||||
|
/// @see uint32 packUnorm3x10_1x2(vec4 const & v)
|
||||||
|
/// @see ivec4 unpackI3x10_1x2(uint32 const & p)
|
||||||
|
GLM_FUNC_DECL uint32 packI3x10_1x2(ivec4 const & v); |
||||||
|
|
||||||
|
/// Unpacks a single 32-bit unsigned integer p into three 10-bit and one 2-bit signed integers.
|
||||||
|
///
|
||||||
|
/// The first component of the returned vector will be extracted from the least significant bits of the input;
|
||||||
|
/// the last component will be extracted from the most significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see uint32 packU3x10_1x2(uvec4 const & v)
|
||||||
|
/// @see vec4 unpackSnorm3x10_1x2(uint32 const & p);
|
||||||
|
/// @see uvec4 unpackI3x10_1x2(uint32 const & p);
|
||||||
|
GLM_FUNC_DECL ivec4 unpackI3x10_1x2(uint32 const & p); |
||||||
|
|
||||||
|
/// Returns an unsigned integer obtained by converting the components of a four-component unsigned integer vector
|
||||||
|
/// to the 10-10-10-2-bit unsigned integer representation found in the OpenGL Specification,
|
||||||
|
/// and then packing these four values into a 32-bit unsigned integer.
|
||||||
|
/// The first vector component specifies the 10 least-significant bits of the result;
|
||||||
|
/// the forth component specifies the 2 most-significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see uint32 packI3x10_1x2(ivec4 const & v)
|
||||||
|
/// @see uint32 packSnorm3x10_1x2(vec4 const & v)
|
||||||
|
/// @see uint32 packUnorm3x10_1x2(vec4 const & v)
|
||||||
|
/// @see ivec4 unpackU3x10_1x2(uint32 const & p)
|
||||||
|
GLM_FUNC_DECL uint32 packU3x10_1x2(uvec4 const & v); |
||||||
|
|
||||||
|
/// Unpacks a single 32-bit unsigned integer p into three 10-bit and one 2-bit unsigned integers.
|
||||||
|
///
|
||||||
|
/// The first component of the returned vector will be extracted from the least significant bits of the input;
|
||||||
|
/// the last component will be extracted from the most significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see uint32 packU3x10_1x2(uvec4 const & v)
|
||||||
|
/// @see vec4 unpackSnorm3x10_1x2(uint32 const & p);
|
||||||
|
/// @see uvec4 unpackI3x10_1x2(uint32 const & p);
|
||||||
|
GLM_FUNC_DECL uvec4 unpackU3x10_1x2(uint32 const & p); |
||||||
|
|
||||||
|
/// First, converts the first three components of the normalized floating-point value v into 10-bit signed integer values.
|
||||||
|
/// Then, converts the forth component of the normalized floating-point value v into 2-bit signed integer values.
|
||||||
|
/// Then, the results are packed into the returned 32-bit unsigned integer.
|
||||||
|
///
|
||||||
|
/// The conversion for component c of v to fixed point is done as follows:
|
||||||
|
/// packSnorm3x10_1x2(xyz): round(clamp(c, -1, +1) * 511.0)
|
||||||
|
/// packSnorm3x10_1x2(w): round(clamp(c, -1, +1) * 1.0)
|
||||||
|
///
|
||||||
|
/// The first vector component specifies the 10 least-significant bits of the result;
|
||||||
|
/// the forth component specifies the 2 most-significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see vec4 unpackSnorm3x10_1x2(uint32 const & p)
|
||||||
|
/// @see uint32 packUnorm3x10_1x2(vec4 const & v)
|
||||||
|
/// @see uint32 packU3x10_1x2(uvec4 const & v)
|
||||||
|
/// @see uint32 packI3x10_1x2(ivec4 const & v)
|
||||||
|
GLM_FUNC_DECL uint32 packSnorm3x10_1x2(vec4 const & v); |
||||||
|
|
||||||
|
/// First, unpacks a single 32-bit unsigned integer p into four 16-bit signed integers.
|
||||||
|
/// Then, each component is converted to a normalized floating-point value to generate the returned four-component vector.
|
||||||
|
///
|
||||||
|
/// The conversion for unpacked fixed-point value f to floating point is done as follows:
|
||||||
|
/// unpackSnorm3x10_1x2(xyz): clamp(f / 511.0, -1, +1)
|
||||||
|
/// unpackSnorm3x10_1x2(w): clamp(f / 511.0, -1, +1)
|
||||||
|
///
|
||||||
|
/// The first component of the returned vector will be extracted from the least significant bits of the input;
|
||||||
|
/// the last component will be extracted from the most significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see uint32 packSnorm3x10_1x2(vec4 const & v)
|
||||||
|
/// @see vec4 unpackUnorm3x10_1x2(uint32 const & p))
|
||||||
|
/// @see uvec4 unpackI3x10_1x2(uint32 const & p)
|
||||||
|
/// @see uvec4 unpackU3x10_1x2(uint32 const & p)
|
||||||
|
GLM_FUNC_DECL vec4 unpackSnorm3x10_1x2(uint32 const & p); |
||||||
|
|
||||||
|
/// First, converts the first three components of the normalized floating-point value v into 10-bit unsigned integer values.
|
||||||
|
/// Then, converts the forth component of the normalized floating-point value v into 2-bit signed uninteger values.
|
||||||
|
/// Then, the results are packed into the returned 32-bit unsigned integer.
|
||||||
|
///
|
||||||
|
/// The conversion for component c of v to fixed point is done as follows:
|
||||||
|
/// packUnorm3x10_1x2(xyz): round(clamp(c, 0, +1) * 1023.0)
|
||||||
|
/// packUnorm3x10_1x2(w): round(clamp(c, 0, +1) * 3.0)
|
||||||
|
///
|
||||||
|
/// The first vector component specifies the 10 least-significant bits of the result;
|
||||||
|
/// the forth component specifies the 2 most-significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see vec4 unpackUnorm3x10_1x2(uint32 const & p)
|
||||||
|
/// @see uint32 packUnorm3x10_1x2(vec4 const & v)
|
||||||
|
/// @see uint32 packU3x10_1x2(uvec4 const & v)
|
||||||
|
/// @see uint32 packI3x10_1x2(ivec4 const & v)
|
||||||
|
GLM_FUNC_DECL uint32 packUnorm3x10_1x2(vec4 const & v); |
||||||
|
|
||||||
|
/// First, unpacks a single 32-bit unsigned integer p into four 16-bit signed integers.
|
||||||
|
/// Then, each component is converted to a normalized floating-point value to generate the returned four-component vector.
|
||||||
|
///
|
||||||
|
/// The conversion for unpacked fixed-point value f to floating point is done as follows:
|
||||||
|
/// unpackSnorm3x10_1x2(xyz): clamp(f / 1023.0, 0, +1)
|
||||||
|
/// unpackSnorm3x10_1x2(w): clamp(f / 3.0, 0, +1)
|
||||||
|
///
|
||||||
|
/// The first component of the returned vector will be extracted from the least significant bits of the input;
|
||||||
|
/// the last component will be extracted from the most significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see uint32 packSnorm3x10_1x2(vec4 const & v)
|
||||||
|
/// @see vec4 unpackInorm3x10_1x2(uint32 const & p))
|
||||||
|
/// @see uvec4 unpackI3x10_1x2(uint32 const & p)
|
||||||
|
/// @see uvec4 unpackU3x10_1x2(uint32 const & p)
|
||||||
|
GLM_FUNC_DECL vec4 unpackUnorm3x10_1x2(uint32 const & p); |
||||||
|
|
||||||
|
/// First, converts the first two components of the normalized floating-point value v into 11-bit signless floating-point values.
|
||||||
|
/// Then, converts the third component of the normalized floating-point value v into a 10-bit signless floating-point value.
|
||||||
|
/// Then, the results are packed into the returned 32-bit unsigned integer.
|
||||||
|
///
|
||||||
|
/// The first vector component specifies the 11 least-significant bits of the result;
|
||||||
|
/// the last component specifies the 10 most-significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see vec3 unpackF2x11_1x10(uint32 const & p)
|
||||||
|
GLM_FUNC_DECL uint32 packF2x11_1x10(vec3 const & v); |
||||||
|
|
||||||
|
/// First, unpacks a single 32-bit unsigned integer p into two 11-bit signless floating-point values and one 10-bit signless floating-point value .
|
||||||
|
/// Then, each component is converted to a normalized floating-point value to generate the returned three-component vector.
|
||||||
|
///
|
||||||
|
/// The first component of the returned vector will be extracted from the least significant bits of the input;
|
||||||
|
/// the last component will be extracted from the most significant bits.
|
||||||
|
///
|
||||||
|
/// @see gtc_packing
|
||||||
|
/// @see uint32 packF2x11_1x10(vec3 const & v)
|
||||||
|
GLM_FUNC_DECL vec3 unpackF2x11_1x10(uint32 const & p); |
||||||
|
|
||||||
|
/// @}
|
||||||
|
}// namespace glm
|
||||||
|
|
||||||
|
#include "packing.inl" |
||||||
|
|
||||||
|
#endif//GLM_GTC_packing
|
||||||
|
|
||||||
@ -0,0 +1,575 @@ |
|||||||
|
/////////////////////////////////////////////////////////////////////////////////// |
||||||
|
/// OpenGL Mathematics (glm.g-truc.net) |
||||||
|
/// |
||||||
|
/// Copyright (c) 2005 - 2013 G-Truc Creation (www.g-truc.net) |
||||||
|
/// Permission is hereby granted, free of charge, to any person obtaining a copy |
||||||
|
/// of this software and associated documentation files (the "Software"), to deal |
||||||
|
/// in the Software without restriction, including without limitation the rights |
||||||
|
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||||
|
/// copies of the Software, and to permit persons to whom the Software is |
||||||
|
/// furnished to do so, subject to the following conditions: |
||||||
|
/// |
||||||
|
/// The above copyright notice and this permission notice shall be included in |
||||||
|
/// all copies or substantial portions of the Software. |
||||||
|
/// |
||||||
|
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||||
|
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||||
|
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||||
|
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||||
|
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
||||||
|
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
||||||
|
/// THE SOFTWARE. |
||||||
|
/// |
||||||
|
/// @ref gtc_packing |
||||||
|
/// @file glm/gtc/packing.inl |
||||||
|
/// @date 2013-08-08 / 2013-08-08 |
||||||
|
/// @author Christophe Riccio |
||||||
|
/////////////////////////////////////////////////////////////////////////////////// |
||||||
|
|
||||||
|
namespace glm{ |
||||||
|
namespace detail |
||||||
|
{ |
||||||
|
glm::uint16 float2half(glm::uint32 const & f) |
||||||
|
{ |
||||||
|
// 10 bits => EE EEEFFFFF |
||||||
|
// 11 bits => EEE EEFFFFFF |
||||||
|
// Half bits => SEEEEEFF FFFFFFFF |
||||||
|
// Float bits => SEEEEEEE EFFFFFFF FFFFFFFF FFFFFFFF |
||||||
|
|
||||||
|
// 0x00007c00 => 00000000 00000000 01111100 00000000 |
||||||
|
// 0x000003ff => 00000000 00000000 00000011 11111111 |
||||||
|
// 0x38000000 => 00111000 00000000 00000000 00000000 |
||||||
|
// 0x7f800000 => 01111111 10000000 00000000 00000000 |
||||||
|
// 0x00008000 => 00000000 00000000 10000000 00000000 |
||||||
|
return |
||||||
|
((f >> 16) & 0x8000) | // sign |
||||||
|
((((f & 0x7f800000) - 0x38000000) >> 13) & 0x7c00) | // exponential |
||||||
|
((f >> 13) & 0x03ff); // Mantissa |
||||||
|
} |
||||||
|
|
||||||
|
glm::uint32 float2packed11(glm::uint32 const & f) |
||||||
|
{ |
||||||
|
// 10 bits => EE EEEFFFFF |
||||||
|
// 11 bits => EEE EEFFFFFF |
||||||
|
// Half bits => SEEEEEFF FFFFFFFF |
||||||
|
// Float bits => SEEEEEEE EFFFFFFF FFFFFFFF FFFFFFFF |
||||||
|
|
||||||
|
// 0x000007c0 => 00000000 00000000 00000111 11000000 |
||||||
|
// 0x00007c00 => 00000000 00000000 01111100 00000000 |
||||||
|
// 0x000003ff => 00000000 00000000 00000011 11111111 |
||||||
|
// 0x38000000 => 00111000 00000000 00000000 00000000 |
||||||
|
// 0x7f800000 => 01111111 10000000 00000000 00000000 |
||||||
|
// 0x00008000 => 00000000 00000000 10000000 00000000 |
||||||
|
return |
||||||
|
((((f & 0x7f800000) - 0x38000000) >> 17) & 0x07c0) | // exponential |
||||||
|
((f >> 17) & 0x003f); // Mantissa |
||||||
|
} |
||||||
|
|
||||||
|
glm::uint32 packed11ToFloat(glm::uint32 const & p) |
||||||
|
{ |
||||||
|
// 10 bits => EE EEEFFFFF |
||||||
|
// 11 bits => EEE EEFFFFFF |
||||||
|
// Half bits => SEEEEEFF FFFFFFFF |
||||||
|
// Float bits => SEEEEEEE EFFFFFFF FFFFFFFF FFFFFFFF |
||||||
|
|
||||||
|
// 0x000007c0 => 00000000 00000000 00000111 11000000 |
||||||
|
// 0x00007c00 => 00000000 00000000 01111100 00000000 |
||||||
|
// 0x000003ff => 00000000 00000000 00000011 11111111 |
||||||
|
// 0x38000000 => 00111000 00000000 00000000 00000000 |
||||||
|
// 0x7f800000 => 01111111 10000000 00000000 00000000 |
||||||
|
// 0x00008000 => 00000000 00000000 10000000 00000000 |
||||||
|
return |
||||||
|
((((p & 0x07c0) << 17) + 0x38000000) & 0x7f800000) | // exponential |
||||||
|
((p & 0x003f) << 17); // Mantissa |
||||||
|
} |
||||||
|
|
||||||
|
glm::uint32 float2packed10(glm::uint32 const & f) |
||||||
|
{ |
||||||
|
// 10 bits => EE EEEFFFFF |
||||||
|
// 11 bits => EEE EEFFFFFF |
||||||
|
// Half bits => SEEEEEFF FFFFFFFF |
||||||
|
// Float bits => SEEEEEEE EFFFFFFF FFFFFFFF FFFFFFFF |
||||||
|
|
||||||
|
// 0x0000001F => 00000000 00000000 00000000 00011111 |
||||||
|
// 0x0000003F => 00000000 00000000 00000000 00111111 |
||||||
|
// 0x000003E0 => 00000000 00000000 00000011 11100000 |
||||||
|
// 0x000007C0 => 00000000 00000000 00000111 11000000 |
||||||
|
// 0x00007C00 => 00000000 00000000 01111100 00000000 |
||||||
|
// 0x000003FF => 00000000 00000000 00000011 11111111 |
||||||
|
// 0x38000000 => 00111000 00000000 00000000 00000000 |
||||||
|
// 0x7f800000 => 01111111 10000000 00000000 00000000 |
||||||
|
// 0x00008000 => 00000000 00000000 10000000 00000000 |
||||||
|
return |
||||||
|
((((f & 0x7f800000) - 0x38000000) >> 18) & 0x03E0) | // exponential |
||||||
|
((f >> 18) & 0x001f); // Mantissa |
||||||
|
} |
||||||
|
|
||||||
|
glm::uint32 packed10ToFloat(glm::uint32 const & p) |
||||||
|
{ |
||||||
|
// 10 bits => EE EEEFFFFF |
||||||
|
// 11 bits => EEE EEFFFFFF |
||||||
|
// Half bits => SEEEEEFF FFFFFFFF |
||||||
|
// Float bits => SEEEEEEE EFFFFFFF FFFFFFFF FFFFFFFF |
||||||
|
|
||||||
|
// 0x0000001F => 00000000 00000000 00000000 00011111 |
||||||
|
// 0x0000003F => 00000000 00000000 00000000 00111111 |
||||||
|
// 0x000003E0 => 00000000 00000000 00000011 11100000 |
||||||
|
// 0x000007C0 => 00000000 00000000 00000111 11000000 |
||||||
|
// 0x00007C00 => 00000000 00000000 01111100 00000000 |
||||||
|
// 0x000003FF => 00000000 00000000 00000011 11111111 |
||||||
|
// 0x38000000 => 00111000 00000000 00000000 00000000 |
||||||
|
// 0x7f800000 => 01111111 10000000 00000000 00000000 |
||||||
|
// 0x00008000 => 00000000 00000000 10000000 00000000 |
||||||
|
return |
||||||
|
((((p & 0x03E0) << 18) + 0x38000000) & 0x7f800000) | // exponential |
||||||
|
((p & 0x001f) << 18); // Mantissa |
||||||
|
} |
||||||
|
|
||||||
|
glm::uint half2float(glm::uint const & h) |
||||||
|
{ |
||||||
|
return ((h & 0x8000) << 16) | ((( h & 0x7c00) + 0x1C000) << 13) | ((h & 0x03FF) << 13); |
||||||
|
} |
||||||
|
|
||||||
|
union uif |
||||||
|
{ |
||||||
|
glm::uint i; |
||||||
|
float f; |
||||||
|
}; |
||||||
|
|
||||||
|
glm::uint floatTo11bit(float x) |
||||||
|
{ |
||||||
|
if(x == 0.0f) |
||||||
|
return 0; |
||||||
|
else if(glm::isnan(x)) |
||||||
|
return ~0; |
||||||
|
else if(glm::isinf(x)) |
||||||
|
return 0x1f << 6; |
||||||
|
|
||||||
|
uif Union; |
||||||
|
Union.f = x; |
||||||
|
return float2packed11(Union.i); |
||||||
|
} |
||||||
|
|
||||||
|
float packed11bitToFloat(glm::uint x) |
||||||
|
{ |
||||||
|
if(x == 0) |
||||||
|
return 0.0f; |
||||||
|
else if(x == ((1 << 11) - 1)) |
||||||
|
return ~0;//NaN |
||||||
|
else if(x == (0x1f << 6)) |
||||||
|
return ~0;//Inf |
||||||
|
|
||||||
|
uif Union; |
||||||
|
Union.i = packed11ToFloat(x); |
||||||
|
return Union.f; |
||||||
|
} |
||||||
|
|
||||||
|
glm::uint floatTo10bit(float x) |
||||||
|
{ |
||||||
|
if(x == 0.0f) |
||||||
|
return 0; |
||||||
|
else if(glm::isnan(x)) |
||||||
|
return ~0; |
||||||
|
else if(glm::isinf(x)) |
||||||
|
return 0x1f << 5; |
||||||
|
|
||||||
|
uif Union; |
||||||
|
Union.f = x; |
||||||
|
return float2packed10(Union.i); |
||||||
|
} |
||||||
|
|
||||||
|
float packed10bitToFloat(glm::uint x) |
||||||
|
{ |
||||||
|
if(x == 0) |
||||||
|
return 0.0f; |
||||||
|
else if(x == ((1 << 10) - 1)) |
||||||
|
return ~0;//NaN |
||||||
|
else if(x == (0x1f << 5)) |
||||||
|
return ~0;//Inf |
||||||
|
|
||||||
|
uif Union; |
||||||
|
Union.i = packed10ToFloat(x); |
||||||
|
return Union.f; |
||||||
|
} |
||||||
|
|
||||||
|
glm::uint f11_f11_f10(float x, float y, float z) |
||||||
|
{ |
||||||
|
return ((floatTo11bit(x) & ((1 << 11) - 1)) << 0) | ((floatTo11bit(y) & ((1 << 11) - 1)) << 11) | ((floatTo10bit(z) & ((1 << 10) - 1)) << 22); |
||||||
|
} |
||||||
|
|
||||||
|
union u10u10u10u2 |
||||||
|
{ |
||||||
|
struct |
||||||
|
{ |
||||||
|
uint x : 10; |
||||||
|
uint y : 10; |
||||||
|
uint z : 10; |
||||||
|
uint w : 2; |
||||||
|
} data; |
||||||
|
uint32 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union i10i10i10i2 |
||||||
|
{ |
||||||
|
struct |
||||||
|
{ |
||||||
|
int x : 10; |
||||||
|
int y : 10; |
||||||
|
int z : 10; |
||||||
|
int w : 2; |
||||||
|
} data; |
||||||
|
uint32 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union unorm4x16 |
||||||
|
{ |
||||||
|
struct |
||||||
|
{ |
||||||
|
uint16 x; |
||||||
|
uint16 y; |
||||||
|
uint16 z; |
||||||
|
uint16 w; |
||||||
|
} data; |
||||||
|
uint64 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union snorm4x16 |
||||||
|
{ |
||||||
|
struct |
||||||
|
{ |
||||||
|
int16 x; |
||||||
|
int16 y; |
||||||
|
int16 z; |
||||||
|
int16 w; |
||||||
|
} data; |
||||||
|
uint64 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union snorm1x16 |
||||||
|
{ |
||||||
|
int16 data; |
||||||
|
uint16 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union half1x16 |
||||||
|
{ |
||||||
|
hdata data; |
||||||
|
uint16 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union half4x16 |
||||||
|
{ |
||||||
|
struct |
||||||
|
{ |
||||||
|
hdata x; |
||||||
|
hdata y; |
||||||
|
hdata z; |
||||||
|
hdata w; |
||||||
|
} data; |
||||||
|
uint64 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union unorm1x8 |
||||||
|
{ |
||||||
|
uint8 data; |
||||||
|
uint8 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union unorm2x8 |
||||||
|
{ |
||||||
|
struct |
||||||
|
{ |
||||||
|
uint8 x; |
||||||
|
uint8 y; |
||||||
|
} data; |
||||||
|
uint16 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union snorm1x8 |
||||||
|
{ |
||||||
|
int8 data; |
||||||
|
uint8 pack; |
||||||
|
}; |
||||||
|
|
||||||
|
union snorm2x8 |
||||||
|
{ |
||||||
|
struct |
||||||
|
{ |
||||||
|
int8 x; |
||||||
|
int8 y; |
||||||
|
} data; |
||||||
|
uint16 pack; |
||||||
|
}; |
||||||
|
}//namespace detail |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint8 packUnorm1x8(float const & v) |
||||||
|
{ |
||||||
|
int8 Scaled(round(clamp(v ,-1.0f, 1.0f) * 255.0f)); |
||||||
|
detail::unorm1x8 Packing; |
||||||
|
Packing.data = Scaled; |
||||||
|
return Packing.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER float unpackUnorm1x8(uint8 p) |
||||||
|
{ |
||||||
|
detail::unorm1x8 Packing; |
||||||
|
Packing.pack = p; |
||||||
|
float Unpacked(Packing.data); |
||||||
|
return Unpacked * float(0.0039215686274509803921568627451); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint16 packUnorm2x8(vec2 const & v) |
||||||
|
{ |
||||||
|
i8vec2 Scaled(round(clamp(v ,-1.0f, 1.0f) * 255.0f)); |
||||||
|
detail::unorm2x8 Packing; |
||||||
|
Packing.data.x = Scaled.x; |
||||||
|
Packing.data.y = Scaled.y; |
||||||
|
return Packing.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER vec2 unpackUnorm2x8(uint16 p) |
||||||
|
{ |
||||||
|
detail::unorm2x8 Packing; |
||||||
|
Packing.pack = p; |
||||||
|
vec2 Unpacked(Packing.data.x, Packing.data.y); |
||||||
|
return Unpacked * float(0.0039215686274509803921568627451); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint8 packSnorm1x8(float const & v) |
||||||
|
{ |
||||||
|
glm::int8 Scaled(round(clamp(v ,-1.0f, 1.0f) * 127.0f)); |
||||||
|
detail::snorm1x8 Packing; |
||||||
|
Packing.data = Scaled; |
||||||
|
return Packing.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER float unpackSnorm1x8(uint8 p) |
||||||
|
{ |
||||||
|
detail::snorm1x8 Packing; |
||||||
|
Packing.pack = p; |
||||||
|
float Unpacked(Packing.data); |
||||||
|
return clamp(Unpacked * float(0.00787401574803149606299212598425), -1.0f, 1.0f); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint16 packSnorm2x8(vec2 const & v) |
||||||
|
{ |
||||||
|
glm::i8vec2 Scaled(round(clamp(v ,-1.0f, 1.0f) * 127.0f)); |
||||||
|
detail::snorm2x8 Packing; |
||||||
|
Packing.data.x = Scaled.x; |
||||||
|
Packing.data.y = Scaled.y; |
||||||
|
return Packing.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER vec2 unpackSnorm2x8(uint16 p) |
||||||
|
{ |
||||||
|
detail::snorm2x8 Packing; |
||||||
|
Packing.pack = p; |
||||||
|
vec2 Unpacked(Packing.data.x, Packing.data.y); |
||||||
|
return clamp(Unpacked * float(0.00787401574803149606299212598425), -1.0f, 1.0f); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint16 packUnorm1x16(float s) |
||||||
|
{ |
||||||
|
return uint16(round(clamp(s, 0.0f, 1.0f) * 65535.0f)); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER float unpackUnorm1x16(uint16 p) |
||||||
|
{ |
||||||
|
return float(p) * 1.0f / 65535.0f; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint64 packUnorm4x16(vec4 const & v) |
||||||
|
{ |
||||||
|
i16vec4 Scaled(round(clamp(v, 0.0f, 1.0f) * 65535.0f)); |
||||||
|
detail::unorm4x16 Packing; |
||||||
|
Packing.data.x = Scaled[0]; |
||||||
|
Packing.data.y = Scaled[1]; |
||||||
|
Packing.data.z = Scaled[2]; |
||||||
|
Packing.data.w = Scaled[3]; |
||||||
|
return Packing.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER vec4 unpackUnorm4x16(uint64 const & p) |
||||||
|
{ |
||||||
|
detail::unorm4x16 Packing; |
||||||
|
vec4 Result( |
||||||
|
float(Packing.data.x), |
||||||
|
float(Packing.data.y), |
||||||
|
float(Packing.data.z), |
||||||
|
float(Packing.data.w)); |
||||||
|
Result *= float(1.5259021896696421759365224689097e-5); // 1.0 / 65535.0 |
||||||
|
return Result; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint16 packSnorm1x16(float v) |
||||||
|
{ |
||||||
|
float Scaled = clamp(v ,-1.0f, 1.0f) * 32767.0f; |
||||||
|
detail::snorm1x16 Packing; |
||||||
|
Packing.data = detail::int16(Scaled); |
||||||
|
return Packing.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER float unpackSnorm1x16(uint16 p) |
||||||
|
{ |
||||||
|
detail::snorm1x16 Packing; |
||||||
|
Packing.pack = p; |
||||||
|
return clamp(float(Packing.data) * float(3.0518509475997192297128208258309e-5), -1.0f, 1.0f); //1.0f / 32767.0f |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint64 packSnorm4x16(vec4 const & v) |
||||||
|
{ |
||||||
|
i16vec4 Scaled(clamp(v ,-1.0f, 1.0f) * 32767.0f); |
||||||
|
detail::snorm4x16 Packing; |
||||||
|
Packing.data.x = Scaled.x; |
||||||
|
Packing.data.y = Scaled.y; |
||||||
|
Packing.data.z = Scaled.z; |
||||||
|
Packing.data.w = Scaled.w; |
||||||
|
return Packing.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER vec4 unpackSnorm4x16(uint64 const & p) |
||||||
|
{ |
||||||
|
detail::snorm4x16 Packing; |
||||||
|
Packing.pack = p; |
||||||
|
vec4 Unpacked(Packing.data.x, Packing.data.y, Packing.data.z, Packing.data.w); |
||||||
|
return clamp(Unpacked * float(3.0518509475997192297128208258309e-5), -1.0f, 1.0f); //1.0f / 32767.0f |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_DECL uint16 packHalf1x16(float const & v) |
||||||
|
{ |
||||||
|
detail::half1x16 Packing; |
||||||
|
Packing.data = detail::toFloat16(v); |
||||||
|
return Packing.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_DECL float unpackHalf1x16(uint16 const & v) |
||||||
|
{ |
||||||
|
detail::half1x16 Packing; |
||||||
|
Packing.pack = v; |
||||||
|
return detail::toFloat32(Packing.data); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_DECL uint64 packHalf4x16(glm::vec4 const & v) |
||||||
|
{ |
||||||
|
detail::half4x16 Packing; |
||||||
|
Packing.data.x = detail::toFloat16(v.x); |
||||||
|
Packing.data.y = detail::toFloat16(v.y); |
||||||
|
Packing.data.z = detail::toFloat16(v.z); |
||||||
|
Packing.data.w = detail::toFloat16(v.w); |
||||||
|
return Packing.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_DECL glm::vec4 unpackHalf4x16(uint64 const & v) |
||||||
|
{ |
||||||
|
detail::half4x16 Packing; |
||||||
|
Packing.pack = v; |
||||||
|
return glm::vec4( |
||||||
|
detail::toFloat32(Packing.data.x), |
||||||
|
detail::toFloat32(Packing.data.y), |
||||||
|
detail::toFloat32(Packing.data.z), |
||||||
|
detail::toFloat32(Packing.data.w)); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint32 packI3x10_1x2(ivec4 const & v) |
||||||
|
{ |
||||||
|
detail::i10i10i10i2 Result; |
||||||
|
Result.data.x = v.x; |
||||||
|
Result.data.y = v.y; |
||||||
|
Result.data.z = v.z; |
||||||
|
Result.data.w = v.w; |
||||||
|
return Result.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER ivec4 unpackI3x10_1x2(uint32 const & v) |
||||||
|
{ |
||||||
|
detail::i10i10i10i2 Unpack; |
||||||
|
Unpack.pack = v; |
||||||
|
return ivec4( |
||||||
|
Unpack.data.x, |
||||||
|
Unpack.data.y, |
||||||
|
Unpack.data.z, |
||||||
|
Unpack.data.w); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint32 packU3x10_1x2(uvec4 const & v) |
||||||
|
{ |
||||||
|
detail::u10u10u10u2 Result; |
||||||
|
Result.data.x = v.x; |
||||||
|
Result.data.y = v.y; |
||||||
|
Result.data.z = v.z; |
||||||
|
Result.data.w = v.w; |
||||||
|
return Result.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uvec4 unpackU3x10_1x2(uint32 const & v) |
||||||
|
{ |
||||||
|
detail::u10u10u10u2 Unpack; |
||||||
|
Unpack.pack = v; |
||||||
|
return uvec4( |
||||||
|
Unpack.data.x, |
||||||
|
Unpack.data.y, |
||||||
|
Unpack.data.z, |
||||||
|
Unpack.data.w); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint32 packSnorm3x10_1x2(vec4 const & v) |
||||||
|
{ |
||||||
|
detail::i10i10i10i2 Result; |
||||||
|
Result.data.x = int(round(clamp(v.x,-1.0f, 1.0f) * 511.f)); |
||||||
|
Result.data.y = int(round(clamp(v.y,-1.0f, 1.0f) * 511.f)); |
||||||
|
Result.data.z = int(round(clamp(v.z,-1.0f, 1.0f) * 511.f)); |
||||||
|
Result.data.w = int(round(clamp(v.w,-1.0f, 1.0f) * 1.f)); |
||||||
|
return Result.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER vec4 unpackSnorm3x10_1x2(uint32 const & v) |
||||||
|
{ |
||||||
|
detail::i10i10i10i2 Unpack; |
||||||
|
Unpack.pack = v; |
||||||
|
vec4 Result; |
||||||
|
Result.x = clamp(float(Unpack.data.x) / 511.f, -1.0f, 1.0f); |
||||||
|
Result.y = clamp(float(Unpack.data.y) / 511.f, -1.0f, 1.0f); |
||||||
|
Result.z = clamp(float(Unpack.data.z) / 511.f, -1.0f, 1.0f); |
||||||
|
Result.w = clamp(float(Unpack.data.w) / 1.f, -1.0f, 1.0f); |
||||||
|
return Result; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint32 packUnorm3x10_1x2(vec4 const & v) |
||||||
|
{ |
||||||
|
detail::i10i10i10i2 Result; |
||||||
|
Result.data.x = int(round(clamp(v.x, 0.0f, 1.0f) * 1023.f)); |
||||||
|
Result.data.y = int(round(clamp(v.y, 0.0f, 1.0f) * 1023.f)); |
||||||
|
Result.data.z = int(round(clamp(v.z, 0.0f, 1.0f) * 1023.f)); |
||||||
|
Result.data.w = int(round(clamp(v.w, 0.0f, 1.0f) * 3.f)); |
||||||
|
return Result.pack; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER vec4 unpackUnorm3x10_1x2(uint32 const & v) |
||||||
|
{ |
||||||
|
detail::i10i10i10i2 Unpack; |
||||||
|
Unpack.pack = v; |
||||||
|
vec4 Result; |
||||||
|
Result.x = float(Unpack.data.x) / 1023.f; |
||||||
|
Result.y = float(Unpack.data.y) / 1023.f; |
||||||
|
Result.z = float(Unpack.data.z) / 1023.f; |
||||||
|
Result.w = float(Unpack.data.w) / 3.f; |
||||||
|
return Result; |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER uint32 packF2x11_1x10(vec3 const & v) |
||||||
|
{ |
||||||
|
return |
||||||
|
((detail::floatTo11bit(v.x) & ((1 << 11) - 1)) << 0) | |
||||||
|
((detail::floatTo11bit(v.y) & ((1 << 11) - 1)) << 11) | |
||||||
|
((detail::floatTo10bit(v.z) & ((1 << 10) - 1)) << 22); |
||||||
|
} |
||||||
|
|
||||||
|
GLM_FUNC_QUALIFIER vec3 unpackF2x11_1x10(uint32 const & v) |
||||||
|
{ |
||||||
|
return vec3( |
||||||
|
detail::packed11bitToFloat(v >> 0), |
||||||
|
detail::packed11bitToFloat(v >> 11), |
||||||
|
detail::packed10bitToFloat(v >> 22)); |
||||||
|
} |
||||||
|
|
||||||
|
}//namespace glm |
||||||
@ -0,0 +1,317 @@ |
|||||||
|
///////////////////////////////////////////////////////////////////////////////////
|
||||||
|
/// OpenGL Mathematics (glm.g-truc.net)
|
||||||
|
///
|
||||||
|
/// Copyright (c) 2005 - 2013 G-Truc Creation (www.g-truc.net)
|
||||||
|
/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
/// of this software and associated documentation files (the "Software"), to deal
|
||||||
|
/// in the Software without restriction, including without limitation the rights
|
||||||
|
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
/// copies of the Software, and to permit persons to whom the Software is
|
||||||
|
/// furnished to do so, subject to the following conditions:
|
||||||
|
///
|
||||||
|
/// The above copyright notice and this permission notice shall be included in
|
||||||
|
/// all copies or substantial portions of the Software.
|
||||||
|
///
|
||||||
|
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||||
|
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||||
|
/// THE SOFTWARE.
|
||||||
|
///
|
||||||
|
/// @ref test
|
||||||
|
/// @file test/gtc/packing.cpp
|
||||||
|
/// @date 2013-08-09 / 2013-08-09
|
||||||
|
/// @author Christophe Riccio
|
||||||
|
///////////////////////////////////////////////////////////////////////////////////
|
||||||
|
|
||||||
|
#include <glm/glm.hpp> |
||||||
|
#include <glm/gtc/packing.hpp> |
||||||
|
#include <cstdio> |
||||||
|
#include <vector> |
||||||
|
|
||||||
|
void print_bits(glm::half const & s) |
||||||
|
{ |
||||||
|
union
|
||||||
|
{ |
||||||
|
glm::detail::hdata h; |
||||||
|
unsigned short i; |
||||||
|
} uif; |
||||||
|
|
||||||
|
uif.h = s._data(); |
||||||
|
|
||||||
|
printf("f16: "); |
||||||
|
for(std::size_t j = sizeof(s) * 8; j > 0; --j) |
||||||
|
{ |
||||||
|
if(j == 10 || j == 15) |
||||||
|
printf(" "); |
||||||
|
printf("%d", (uif.i & (1 << (j - 1))) ? 1 : 0); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
void print_bits(float const & s) |
||||||
|
{ |
||||||
|
union
|
||||||
|
{ |
||||||
|
float f; |
||||||
|
unsigned int i; |
||||||
|
} uif; |
||||||
|
|
||||||
|
uif.f = s; |
||||||
|
|
||||||
|
printf("f32: "); |
||||||
|
for(std::size_t j = sizeof(s) * 8; j > 0; --j) |
||||||
|
{ |
||||||
|
if(j == 23 || j == 31) |
||||||
|
printf(" "); |
||||||
|
printf("%d", (uif.i & (1 << (j - 1))) ? 1 : 0); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
void print_10bits(glm::uint const & s) |
||||||
|
{ |
||||||
|
printf("10b: "); |
||||||
|
for(std::size_t j = 10; j > 0; --j) |
||||||
|
{ |
||||||
|
if(j == 5) |
||||||
|
printf(" "); |
||||||
|
printf("%d", (s & (1 << (j - 1))) ? 1 : 0); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
void print_11bits(glm::uint const & s) |
||||||
|
{ |
||||||
|
printf("11b: "); |
||||||
|
for(std::size_t j = 11; j > 0; --j) |
||||||
|
{ |
||||||
|
if(j == 6) |
||||||
|
printf(" "); |
||||||
|
printf("%d", (s & (1 << (j - 1))) ? 1 : 0); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
void print_value(float const & s) |
||||||
|
{ |
||||||
|
printf("%2.5f, ", s); |
||||||
|
print_bits(s); |
||||||
|
printf(", "); |
||||||
|
print_bits(glm::half(s)); |
||||||
|
// printf(", ");
|
||||||
|
// print_11bits(detail::floatTo11bit(s));
|
||||||
|
// printf(", ");
|
||||||
|
// print_10bits(detail::floatTo10bit(s));
|
||||||
|
printf("\n"); |
||||||
|
} |
||||||
|
|
||||||
|
int test_half() |
||||||
|
{ |
||||||
|
int Error = 0; |
||||||
|
|
||||||
|
print_value(0.0f); |
||||||
|
print_value(0.1f); |
||||||
|
print_value(0.2f); |
||||||
|
print_value(0.3f); |
||||||
|
print_value(0.4f); |
||||||
|
print_value(0.5f); |
||||||
|
print_value(0.6f); |
||||||
|
print_value(1.0f); |
||||||
|
print_value(1.1f); |
||||||
|
print_value(1.2f); |
||||||
|
print_value(1.3f); |
||||||
|
print_value(1.4f); |
||||||
|
print_value(1.5f); |
||||||
|
print_value(1.6f); |
||||||
|
print_value(2.0f); |
||||||
|
print_value(2.1f); |
||||||
|
print_value(2.2f); |
||||||
|
print_value(2.3f); |
||||||
|
print_value(2.4f); |
||||||
|
print_value(2.5f); |
||||||
|
print_value(2.6f); |
||||||
|
|
||||||
|
return Error; |
||||||
|
} |
||||||
|
|
||||||
|
int test_Half1x16() |
||||||
|
{ |
||||||
|
int Error = 0; |
||||||
|
|
||||||
|
std::vector<float> Tests; |
||||||
|
Tests.push_back(0.0f); |
||||||
|
Tests.push_back(1.0f); |
||||||
|
Tests.push_back(-1.0f); |
||||||
|
Tests.push_back(2.0f); |
||||||
|
Tests.push_back(-2.0f); |
||||||
|
Tests.push_back(1.9f); |
||||||
|
|
||||||
|
for(std::size_t i = 0; i < Tests.size(); ++i) |
||||||
|
{ |
||||||
|
glm::uint32 p0 = glm::packHalf1x16(Tests[i]); |
||||||
|
float v0 = glm::unpackHalf1x16(p0); |
||||||
|
glm::uint32 p1 = glm::packHalf1x16(v0); |
||||||
|
float v1 = glm::unpackHalf1x16(p0); |
||||||
|
Error += (v0 == v1) ? 0 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return Error; |
||||||
|
} |
||||||
|
|
||||||
|
int test_Half4x16() |
||||||
|
{ |
||||||
|
int Error = 0; |
||||||
|
|
||||||
|
std::vector<glm::vec4> Tests; |
||||||
|
Tests.push_back(glm::vec4(1.0)); |
||||||
|
Tests.push_back(glm::vec4(0.0)); |
||||||
|
Tests.push_back(glm::vec4(2.0)); |
||||||
|
Tests.push_back(glm::vec4(0.1)); |
||||||
|
Tests.push_back(glm::vec4(0.5)); |
||||||
|
Tests.push_back(glm::vec4(-0.9)); |
||||||
|
|
||||||
|
for(std::size_t i = 0; i < Tests.size(); ++i) |
||||||
|
{ |
||||||
|
glm::uint64 p0 = glm::packHalf4x16(Tests[i]); |
||||||
|
glm::vec4 v0 = glm::unpackHalf4x16(p0); |
||||||
|
glm::uint64 p1 = glm::packHalf4x16(v0); |
||||||
|
glm::vec4 v1 = glm::unpackHalf4x16(p0); |
||||||
|
Error += glm::all(glm::equal(v0, v1)) ? 0 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return Error; |
||||||
|
} |
||||||
|
|
||||||
|
int test_I3x10_1x2() |
||||||
|
{ |
||||||
|
int Error = 0; |
||||||
|
|
||||||
|
std::vector<glm::ivec4> Tests; |
||||||
|
Tests.push_back(glm::ivec4(0)); |
||||||
|
Tests.push_back(glm::ivec4(1)); |
||||||
|
Tests.push_back(glm::ivec4(-1)); |
||||||
|
Tests.push_back(glm::ivec4(2)); |
||||||
|
Tests.push_back(glm::ivec4(-2)); |
||||||
|
Tests.push_back(glm::ivec4(3)); |
||||||
|
|
||||||
|
for(std::size_t i = 0; i < Tests.size(); ++i) |
||||||
|
{ |
||||||
|
glm::uint32 p0 = glm::packI3x10_1x2(Tests[i]); |
||||||
|
glm::ivec4 v0 = glm::unpackI3x10_1x2(p0); |
||||||
|
glm::uint32 p1 = glm::packI3x10_1x2(v0); |
||||||
|
glm::ivec4 v1 = glm::unpackI3x10_1x2(p0); |
||||||
|
Error += glm::all(glm::equal(v0, v1)) ? 0 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return Error; |
||||||
|
} |
||||||
|
|
||||||
|
int test_U3x10_1x2() |
||||||
|
{ |
||||||
|
int Error = 0; |
||||||
|
|
||||||
|
std::vector<glm::uvec4> Tests; |
||||||
|
Tests.push_back(glm::uvec4(0)); |
||||||
|
Tests.push_back(glm::uvec4(1)); |
||||||
|
Tests.push_back(glm::uvec4(2)); |
||||||
|
Tests.push_back(glm::uvec4(3)); |
||||||
|
Tests.push_back(glm::uvec4(4)); |
||||||
|
Tests.push_back(glm::uvec4(5)); |
||||||
|
|
||||||
|
for(std::size_t i = 0; i < Tests.size(); ++i) |
||||||
|
{ |
||||||
|
glm::uint32 p0 = glm::packU3x10_1x2(Tests[i]); |
||||||
|
glm::uvec4 v0 = glm::unpackU3x10_1x2(p0); |
||||||
|
glm::uint32 p1 = glm::packU3x10_1x2(v0); |
||||||
|
glm::uvec4 v1 = glm::unpackU3x10_1x2(p0); |
||||||
|
Error += glm::all(glm::equal(v0, v1)) ? 0 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return Error; |
||||||
|
} |
||||||
|
|
||||||
|
int test_Snorm3x10_1x2() |
||||||
|
{ |
||||||
|
int Error = 0; |
||||||
|
|
||||||
|
std::vector<glm::vec4> Tests; |
||||||
|
Tests.push_back(glm::vec4(1.0)); |
||||||
|
Tests.push_back(glm::vec4(0.0)); |
||||||
|
Tests.push_back(glm::vec4(2.0)); |
||||||
|
Tests.push_back(glm::vec4(0.1)); |
||||||
|
Tests.push_back(glm::vec4(0.5)); |
||||||
|
Tests.push_back(glm::vec4(0.9)); |
||||||
|
|
||||||
|
for(std::size_t i = 0; i < Tests.size(); ++i) |
||||||
|
{ |
||||||
|
glm::uint32 p0 = glm::packSnorm3x10_1x2(Tests[i]); |
||||||
|
glm::vec4 v0 = glm::unpackSnorm3x10_1x2(p0); |
||||||
|
glm::uint32 p1 = glm::packSnorm3x10_1x2(v0); |
||||||
|
glm::vec4 v1 = glm::unpackSnorm3x10_1x2(p0); |
||||||
|
Error += glm::all(glm::equal(v0, v1)) ? 0 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return Error; |
||||||
|
} |
||||||
|
|
||||||
|
int test_Unorm3x10_1x2() |
||||||
|
{ |
||||||
|
int Error = 0; |
||||||
|
|
||||||
|
std::vector<glm::vec4> Tests; |
||||||
|
Tests.push_back(glm::vec4(1.0)); |
||||||
|
Tests.push_back(glm::vec4(0.0)); |
||||||
|
Tests.push_back(glm::vec4(2.0)); |
||||||
|
Tests.push_back(glm::vec4(0.1)); |
||||||
|
Tests.push_back(glm::vec4(0.5)); |
||||||
|
Tests.push_back(glm::vec4(0.9)); |
||||||
|
|
||||||
|
for(std::size_t i = 0; i < Tests.size(); ++i) |
||||||
|
{ |
||||||
|
glm::uint32 p0 = glm::packSnorm3x10_1x2(Tests[i]); |
||||||
|
glm::vec4 v0 = glm::unpackSnorm3x10_1x2(p0); |
||||||
|
glm::uint32 p1 = glm::packSnorm3x10_1x2(v0); |
||||||
|
glm::vec4 v1 = glm::unpackSnorm3x10_1x2(p0); |
||||||
|
Error += glm::all(glm::equal(v0, v1)) ? 0 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return Error; |
||||||
|
} |
||||||
|
|
||||||
|
int test_F2x11_1x10() |
||||||
|
{ |
||||||
|
int Error = 0; |
||||||
|
|
||||||
|
std::vector<glm::vec3> Tests; |
||||||
|
Tests.push_back(glm::vec3(1.0)); |
||||||
|
Tests.push_back(glm::vec3(0.0)); |
||||||
|
Tests.push_back(glm::vec3(2.0)); |
||||||
|
Tests.push_back(glm::vec3(0.1)); |
||||||
|
Tests.push_back(glm::vec3(0.5)); |
||||||
|
Tests.push_back(glm::vec3(0.9)); |
||||||
|
|
||||||
|
for(std::size_t i = 0; i < Tests.size(); ++i) |
||||||
|
{ |
||||||
|
glm::uint32 p0 = glm::packF2x11_1x10(Tests[i]); |
||||||
|
glm::vec3 v0 = glm::unpackF2x11_1x10(p0); |
||||||
|
glm::uint32 p1 = glm::packF2x11_1x10(v0); |
||||||
|
glm::vec3 v1 = glm::unpackF2x11_1x10(p0); |
||||||
|
Error += glm::all(glm::equal(v0, v1)) ? 0 : 1; |
||||||
|
} |
||||||
|
|
||||||
|
return Error; |
||||||
|
} |
||||||
|
|
||||||
|
int main() |
||||||
|
{ |
||||||
|
int Error(0); |
||||||
|
|
||||||
|
Error += test_F2x11_1x10(); |
||||||
|
Error += test_Snorm3x10_1x2(); |
||||||
|
Error += test_Unorm3x10_1x2(); |
||||||
|
Error += test_I3x10_1x2(); |
||||||
|
Error += test_U3x10_1x2(); |
||||||
|
Error += test_Half1x16(); |
||||||
|
Error += test_U3x10_1x2(); |
||||||
|
|
||||||
|
return Error; |
||||||
|
} |
||||||
Loading…
Reference in New Issue