729 lines
35 KiB
C++
729 lines
35 KiB
C++
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/// @ref gtc_packing
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/// @file glm/gtc/packing.hpp
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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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/// Include <glm/gtc/packing.hpp> to use the features of this extension.
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///
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/// This extension provides a set of function to convert vertors to packed
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/// formats.
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#pragma once
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// Dependency:
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#include "type_precision.hpp"
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#include "../ext/vector_packing.hpp"
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#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
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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 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 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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/// 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 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 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)
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/// @see vec2 unpackSnorm2x16(uint32 p)
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/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/unpackSnorm2x16.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 vec4 unpackSnorm4x16(uint64 p);
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/// Returns an unsigned integer obtained by converting the components of a floating-point scalar
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/// to the 16-bit floating-point representation found in the OpenGL Specification,
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/// and then packing this 16-bit value into a 16-bit unsigned integer.
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///
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/// @see gtc_packing
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/// @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 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 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 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 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 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 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 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 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.
|
||
|
|
///
|
||
|
|
/// packF3x9_E1x5 allows encoding into RGBE / RGB9E5 format
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec3 unpackF3x9_E1x5(uint32 const& p)
|
||
|
|
GLM_FUNC_DECL uint32 packF3x9_E1x5(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.
|
||
|
|
///
|
||
|
|
/// unpackF3x9_E1x5 allows decoding RGBE / RGB9E5 data
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint32 packF3x9_E1x5(vec3 const& v)
|
||
|
|
GLM_FUNC_DECL vec3 unpackF3x9_E1x5(uint32 p);
|
||
|
|
|
||
|
|
/// Returns an unsigned integer vector obtained by converting the components of a floating-point vector
|
||
|
|
/// to the 16-bit floating-point representation found in the OpenGL Specification.
|
||
|
|
/// 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 vec<3, T, Q> unpackRGBM(vec<4, T, Q> const& p)
|
||
|
|
/// @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>
|
||
|
|
template<length_t L, typename T, qualifier Q>
|
||
|
|
GLM_FUNC_DECL vec<4, T, Q> packRGBM(vec<3, T, Q> const& rgb);
|
||
|
|
|
||
|
|
/// Returns a floating-point vector with components obtained by reinterpreting an integer vector as 16-bit floating-point numbers 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 vec<4, T, Q> packRGBM(vec<3, float, Q> const& v)
|
||
|
|
/// @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>
|
||
|
|
template<length_t L, typename T, qualifier Q>
|
||
|
|
GLM_FUNC_DECL vec<3, T, Q> unpackRGBM(vec<4, T, Q> const& rgbm);
|
||
|
|
|
||
|
|
/// Returns an unsigned integer vector obtained by converting the components of a floating-point vector
|
||
|
|
/// to the 16-bit floating-point representation found in the OpenGL Specification.
|
||
|
|
/// 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 vec<L, float, Q> unpackHalf(vec<L, uint16, Q> const& p)
|
||
|
|
/// @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>
|
||
|
|
template<length_t L, qualifier Q>
|
||
|
|
GLM_FUNC_DECL vec<L, uint16, Q> packHalf(vec<L, float, Q> const& v);
|
||
|
|
|
||
|
|
/// Returns a floating-point vector with components obtained by reinterpreting an integer vector as 16-bit floating-point numbers 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 vec<L, uint16, Q> packHalf(vec<L, float, Q> const& v)
|
||
|
|
/// @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>
|
||
|
|
template<length_t L, qualifier Q>
|
||
|
|
GLM_FUNC_DECL vec<L, float, Q> unpackHalf(vec<L, uint16, Q> const& p);
|
||
|
|
|
||
|
|
/// Convert each component of the normalized floating-point vector into unsigned integer values.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec<L, floatType, Q> unpackUnorm(vec<L, intType, Q> const& p);
|
||
|
|
template<typename uintType, length_t L, typename floatType, qualifier Q>
|
||
|
|
GLM_FUNC_DECL vec<L, uintType, Q> packUnorm(vec<L, floatType, Q> const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer to a normalized floating-point vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec<L, intType, Q> packUnorm(vec<L, floatType, Q> const& v)
|
||
|
|
template<typename floatType, length_t L, typename uintType, qualifier Q>
|
||
|
|
GLM_FUNC_DECL vec<L, floatType, Q> unpackUnorm(vec<L, uintType, Q> const& v);
|
||
|
|
|
||
|
|
/// Convert each component of the normalized floating-point vector into signed integer values.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec<L, floatType, Q> unpackSnorm(vec<L, intType, Q> const& p);
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|
template<typename intType, length_t L, typename floatType, qualifier Q>
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|
GLM_FUNC_DECL vec<L, intType, Q> packSnorm(vec<L, floatType, Q> const& v);
|
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|
/// Convert a packed integer to a normalized floating-point vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec<L, intType, Q> packSnorm(vec<L, floatType, Q> const& v)
|
||
|
|
template<typename floatType, length_t L, typename intType, qualifier Q>
|
||
|
|
GLM_FUNC_DECL vec<L, floatType, Q> unpackSnorm(vec<L, intType, Q> const& v);
|
||
|
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|
||
|
|
/// Convert each component of the normalized floating-point vector into unsigned integer values.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec2 unpackUnorm2x4(uint8 p)
|
||
|
|
GLM_FUNC_DECL uint8 packUnorm2x4(vec2 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer to a normalized floating-point vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint8 packUnorm2x4(vec2 const& v)
|
||
|
|
GLM_FUNC_DECL vec2 unpackUnorm2x4(uint8 p);
|
||
|
|
|
||
|
|
/// Convert each component of the normalized floating-point vector into unsigned integer values.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec4 unpackUnorm4x4(uint16 p)
|
||
|
|
GLM_FUNC_DECL uint16 packUnorm4x4(vec4 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer to a normalized floating-point vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint16 packUnorm4x4(vec4 const& v)
|
||
|
|
GLM_FUNC_DECL vec4 unpackUnorm4x4(uint16 p);
|
||
|
|
|
||
|
|
/// Convert each component of the normalized floating-point vector into unsigned integer values.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec3 unpackUnorm1x5_1x6_1x5(uint16 p)
|
||
|
|
GLM_FUNC_DECL uint16 packUnorm1x5_1x6_1x5(vec3 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer to a normalized floating-point vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint16 packUnorm1x5_1x6_1x5(vec3 const& v)
|
||
|
|
GLM_FUNC_DECL vec3 unpackUnorm1x5_1x6_1x5(uint16 p);
|
||
|
|
|
||
|
|
/// Convert each component of the normalized floating-point vector into unsigned integer values.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec4 unpackUnorm3x5_1x1(uint16 p)
|
||
|
|
GLM_FUNC_DECL uint16 packUnorm3x5_1x1(vec4 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer to a normalized floating-point vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint16 packUnorm3x5_1x1(vec4 const& v)
|
||
|
|
GLM_FUNC_DECL vec4 unpackUnorm3x5_1x1(uint16 p);
|
||
|
|
|
||
|
|
/// Convert each component of the normalized floating-point vector into unsigned integer values.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see vec3 unpackUnorm2x3_1x2(uint8 p)
|
||
|
|
GLM_FUNC_DECL uint8 packUnorm2x3_1x2(vec3 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer to a normalized floating-point vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint8 packUnorm2x3_1x2(vec3 const& v)
|
||
|
|
GLM_FUNC_DECL vec3 unpackUnorm2x3_1x2(uint8 p);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see i8vec2 unpackInt2x8(int16 p)
|
||
|
|
GLM_FUNC_DECL int16 packInt2x8(i8vec2 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see int16 packInt2x8(i8vec2 const& v)
|
||
|
|
GLM_FUNC_DECL i8vec2 unpackInt2x8(int16 p);
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed unsigned integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see u8vec2 unpackInt2x8(uint16 p)
|
||
|
|
GLM_FUNC_DECL uint16 packUint2x8(u8vec2 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint16 packInt2x8(u8vec2 const& v)
|
||
|
|
GLM_FUNC_DECL u8vec2 unpackUint2x8(uint16 p);
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see i8vec4 unpackInt4x8(int32 p)
|
||
|
|
GLM_FUNC_DECL int32 packInt4x8(i8vec4 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see int32 packInt2x8(i8vec4 const& v)
|
||
|
|
GLM_FUNC_DECL i8vec4 unpackInt4x8(int32 p);
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed unsigned integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see u8vec4 unpackUint4x8(uint32 p)
|
||
|
|
GLM_FUNC_DECL uint32 packUint4x8(u8vec4 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint32 packUint4x8(u8vec2 const& v)
|
||
|
|
GLM_FUNC_DECL u8vec4 unpackUint4x8(uint32 p);
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see i16vec2 unpackInt2x16(int p)
|
||
|
|
GLM_FUNC_DECL int packInt2x16(i16vec2 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see int packInt2x16(i16vec2 const& v)
|
||
|
|
GLM_FUNC_DECL i16vec2 unpackInt2x16(int p);
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see i16vec4 unpackInt4x16(int64 p)
|
||
|
|
GLM_FUNC_DECL int64 packInt4x16(i16vec4 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see int64 packInt4x16(i16vec4 const& v)
|
||
|
|
GLM_FUNC_DECL i16vec4 unpackInt4x16(int64 p);
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed unsigned integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see u16vec2 unpackUint2x16(uint p)
|
||
|
|
GLM_FUNC_DECL uint packUint2x16(u16vec2 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint packUint2x16(u16vec2 const& v)
|
||
|
|
GLM_FUNC_DECL u16vec2 unpackUint2x16(uint p);
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed unsigned integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see u16vec4 unpackUint4x16(uint64 p)
|
||
|
|
GLM_FUNC_DECL uint64 packUint4x16(u16vec4 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see uint64 packUint4x16(u16vec4 const& v)
|
||
|
|
GLM_FUNC_DECL u16vec4 unpackUint4x16(uint64 p);
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see i32vec2 unpackInt2x32(int p)
|
||
|
|
GLM_FUNC_DECL int64 packInt2x32(i32vec2 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see int packInt2x16(i32vec2 const& v)
|
||
|
|
GLM_FUNC_DECL i32vec2 unpackInt2x32(int64 p);
|
||
|
|
|
||
|
|
/// Convert each component from an integer vector into a packed unsigned integer.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see u32vec2 unpackUint2x32(int p)
|
||
|
|
GLM_FUNC_DECL uint64 packUint2x32(u32vec2 const& v);
|
||
|
|
|
||
|
|
/// Convert a packed integer into an integer vector.
|
||
|
|
///
|
||
|
|
/// @see gtc_packing
|
||
|
|
/// @see int packUint2x16(u32vec2 const& v)
|
||
|
|
GLM_FUNC_DECL u32vec2 unpackUint2x32(uint64 p);
|
||
|
|
|
||
|
|
/// @}
|
||
|
|
}// namespace glm
|
||
|
|
|
||
|
|
#include "packing.inl"
|