/// @ref gtc_bitfield #include "../simd/integer.h" namespace glm{ namespace detail { template GLM_FUNC_DECL RET bitfieldInterleave(PARAM x, PARAM y); template GLM_FUNC_DECL RET bitfieldInterleave(PARAM x, PARAM y, PARAM z); template GLM_FUNC_DECL RET bitfieldInterleave(PARAM x, PARAM y, PARAM z, PARAM w); template<> GLM_FUNC_QUALIFIER glm::uint16 bitfieldInterleave(glm::uint8 x, glm::uint8 y) { glm::uint16 REG1(x); glm::uint16 REG2(y); REG1 = ((REG1 << 4) | REG1) & static_cast(0x0F0F); REG2 = ((REG2 << 4) | REG2) & static_cast(0x0F0F); REG1 = ((REG1 << 2) | REG1) & static_cast(0x3333); REG2 = ((REG2 << 2) | REG2) & static_cast(0x3333); REG1 = ((REG1 << 1) | REG1) & static_cast(0x5555); REG2 = ((REG2 << 1) | REG2) & static_cast(0x5555); return REG1 | static_cast(REG2 << 1); } template<> GLM_FUNC_QUALIFIER glm::uint32 bitfieldInterleave(glm::uint16 x, glm::uint16 y) { glm::uint32 REG1(x); glm::uint32 REG2(y); REG1 = ((REG1 << 8) | REG1) & static_cast(0x00FF00FF); REG2 = ((REG2 << 8) | REG2) & static_cast(0x00FF00FF); REG1 = ((REG1 << 4) | REG1) & static_cast(0x0F0F0F0F); REG2 = ((REG2 << 4) | REG2) & static_cast(0x0F0F0F0F); REG1 = ((REG1 << 2) | REG1) & static_cast(0x33333333); REG2 = ((REG2 << 2) | REG2) & static_cast(0x33333333); REG1 = ((REG1 << 1) | REG1) & static_cast(0x55555555); REG2 = ((REG2 << 1) | REG2) & static_cast(0x55555555); return REG1 | (REG2 << 1); } template<> GLM_FUNC_QUALIFIER glm::uint64 bitfieldInterleave(glm::uint32 x, glm::uint32 y) { glm::uint64 REG1(x); glm::uint64 REG2(y); REG1 = ((REG1 << 16) | REG1) & static_cast(0x0000FFFF0000FFFFull); REG2 = ((REG2 << 16) | REG2) & static_cast(0x0000FFFF0000FFFFull); REG1 = ((REG1 << 8) | REG1) & static_cast(0x00FF00FF00FF00FFull); REG2 = ((REG2 << 8) | REG2) & static_cast(0x00FF00FF00FF00FFull); REG1 = ((REG1 << 4) | REG1) & static_cast(0x0F0F0F0F0F0F0F0Full); REG2 = ((REG2 << 4) | REG2) & static_cast(0x0F0F0F0F0F0F0F0Full); REG1 = ((REG1 << 2) | REG1) & static_cast(0x3333333333333333ull); REG2 = ((REG2 << 2) | REG2) & static_cast(0x3333333333333333ull); REG1 = ((REG1 << 1) | REG1) & static_cast(0x5555555555555555ull); REG2 = ((REG2 << 1) | REG2) & static_cast(0x5555555555555555ull); return REG1 | (REG2 << 1); } template<> GLM_FUNC_QUALIFIER glm::uint32 bitfieldInterleave(glm::uint8 x, glm::uint8 y, glm::uint8 z) { glm::uint32 REG1(x); glm::uint32 REG2(y); glm::uint32 REG3(z); REG1 = ((REG1 << 16) | REG1) & static_cast(0xFF0000FFu); REG2 = ((REG2 << 16) | REG2) & static_cast(0xFF0000FFu); REG3 = ((REG3 << 16) | REG3) & static_cast(0xFF0000FFu); REG1 = ((REG1 << 8) | REG1) & static_cast(0x0F00F00Fu); REG2 = ((REG2 << 8) | REG2) & static_cast(0x0F00F00Fu); REG3 = ((REG3 << 8) | REG3) & static_cast(0x0F00F00Fu); REG1 = ((REG1 << 4) | REG1) & static_cast(0xC30C30C3u); REG2 = ((REG2 << 4) | REG2) & static_cast(0xC30C30C3u); REG3 = ((REG3 << 4) | REG3) & static_cast(0xC30C30C3u); REG1 = ((REG1 << 2) | REG1) & static_cast(0x49249249u); REG2 = ((REG2 << 2) | REG2) & static_cast(0x49249249u); REG3 = ((REG3 << 2) | REG3) & static_cast(0x49249249u); return REG1 | (REG2 << 1) | (REG3 << 2); } template<> GLM_FUNC_QUALIFIER glm::uint64 bitfieldInterleave(glm::uint16 x, glm::uint16 y, glm::uint16 z) { glm::uint64 REG1(x); glm::uint64 REG2(y); glm::uint64 REG3(z); REG1 = ((REG1 << 32) | REG1) & static_cast(0xFFFF00000000FFFFull); REG2 = ((REG2 << 32) | REG2) & static_cast(0xFFFF00000000FFFFull); REG3 = ((REG3 << 32) | REG3) & static_cast(0xFFFF00000000FFFFull); REG1 = ((REG1 << 16) | REG1) & static_cast(0x00FF0000FF0000FFull); REG2 = ((REG2 << 16) | REG2) & static_cast(0x00FF0000FF0000FFull); REG3 = ((REG3 << 16) | REG3) & static_cast(0x00FF0000FF0000FFull); REG1 = ((REG1 << 8) | REG1) & static_cast(0xF00F00F00F00F00Full); REG2 = ((REG2 << 8) | REG2) & static_cast(0xF00F00F00F00F00Full); REG3 = ((REG3 << 8) | REG3) & static_cast(0xF00F00F00F00F00Full); REG1 = ((REG1 << 4) | REG1) & static_cast(0x30C30C30C30C30C3ull); REG2 = ((REG2 << 4) | REG2) & static_cast(0x30C30C30C30C30C3ull); REG3 = ((REG3 << 4) | REG3) & static_cast(0x30C30C30C30C30C3ull); REG1 = ((REG1 << 2) | REG1) & static_cast(0x9249249249249249ull); REG2 = ((REG2 << 2) | REG2) & static_cast(0x9249249249249249ull); REG3 = ((REG3 << 2) | REG3) & static_cast(0x9249249249249249ull); return REG1 | (REG2 << 1) | (REG3 << 2); } template<> GLM_FUNC_QUALIFIER glm::uint64 bitfieldInterleave(glm::uint32 x, glm::uint32 y, glm::uint32 z) { glm::uint64 REG1(x); glm::uint64 REG2(y); glm::uint64 REG3(z); REG1 = ((REG1 << 32) | REG1) & static_cast(0xFFFF00000000FFFFull); REG2 = ((REG2 << 32) | REG2) & static_cast(0xFFFF00000000FFFFull); REG3 = ((REG3 << 32) | REG3) & static_cast(0xFFFF00000000FFFFull); REG1 = ((REG1 << 16) | REG1) & static_cast(0x00FF0000FF0000FFull); REG2 = ((REG2 << 16) | REG2) & static_cast(0x00FF0000FF0000FFull); REG3 = ((REG3 << 16) | REG3) & static_cast(0x00FF0000FF0000FFull); REG1 = ((REG1 << 8) | REG1) & static_cast(0xF00F00F00F00F00Full); REG2 = ((REG2 << 8) | REG2) & static_cast(0xF00F00F00F00F00Full); REG3 = ((REG3 << 8) | REG3) & static_cast(0xF00F00F00F00F00Full); REG1 = ((REG1 << 4) | REG1) & static_cast(0x30C30C30C30C30C3ull); REG2 = ((REG2 << 4) | REG2) & static_cast(0x30C30C30C30C30C3ull); REG3 = ((REG3 << 4) | REG3) & static_cast(0x30C30C30C30C30C3ull); REG1 = ((REG1 << 2) | REG1) & static_cast(0x9249249249249249ull); REG2 = ((REG2 << 2) | REG2) & static_cast(0x9249249249249249ull); REG3 = ((REG3 << 2) | REG3) & static_cast(0x9249249249249249ull); return REG1 | (REG2 << 1) | (REG3 << 2); } template<> GLM_FUNC_QUALIFIER glm::uint32 bitfieldInterleave(glm::uint8 x, glm::uint8 y, glm::uint8 z, glm::uint8 w) { glm::uint32 REG1(x); glm::uint32 REG2(y); glm::uint32 REG3(z); glm::uint32 REG4(w); REG1 = ((REG1 << 12) | REG1) & static_cast(0x000F000Fu); REG2 = ((REG2 << 12) | REG2) & static_cast(0x000F000Fu); REG3 = ((REG3 << 12) | REG3) & static_cast(0x000F000Fu); REG4 = ((REG4 << 12) | REG4) & static_cast(0x000F000Fu); REG1 = ((REG1 << 6) | REG1) & static_cast(0x03030303u); REG2 = ((REG2 << 6) | REG2) & static_cast(0x03030303u); REG3 = ((REG3 << 6) | REG3) & static_cast(0x03030303u); REG4 = ((REG4 << 6) | REG4) & static_cast(0x03030303u); REG1 = ((REG1 << 3) | REG1) & static_cast(0x11111111u); REG2 = ((REG2 << 3) | REG2) & static_cast(0x11111111u); REG3 = ((REG3 << 3) | REG3) & static_cast(0x11111111u); REG4 = ((REG4 << 3) | REG4) & static_cast(0x11111111u); return REG1 | (REG2 << 1) | (REG3 << 2) | (REG4 << 3); } template<> GLM_FUNC_QUALIFIER glm::uint64 bitfieldInterleave(glm::uint16 x, glm::uint16 y, glm::uint16 z, glm::uint16 w) { glm::uint64 REG1(x); glm::uint64 REG2(y); glm::uint64 REG3(z); glm::uint64 REG4(w); REG1 = ((REG1 << 24) | REG1) & static_cast(0x000000FF000000FFull); REG2 = ((REG2 << 24) | REG2) & static_cast(0x000000FF000000FFull); REG3 = ((REG3 << 24) | REG3) & static_cast(0x000000FF000000FFull); REG4 = ((REG4 << 24) | REG4) & static_cast(0x000000FF000000FFull); REG1 = ((REG1 << 12) | REG1) & static_cast(0x000F000F000F000Full); REG2 = ((REG2 << 12) | REG2) & static_cast(0x000F000F000F000Full); REG3 = ((REG3 << 12) | REG3) & static_cast(0x000F000F000F000Full); REG4 = ((REG4 << 12) | REG4) & static_cast(0x000F000F000F000Full); REG1 = ((REG1 << 6) | REG1) & static_cast(0x0303030303030303ull); REG2 = ((REG2 << 6) | REG2) & static_cast(0x0303030303030303ull); REG3 = ((REG3 << 6) | REG3) & static_cast(0x0303030303030303ull); REG4 = ((REG4 << 6) | REG4) & static_cast(0x0303030303030303ull); REG1 = ((REG1 << 3) | REG1) & static_cast(0x1111111111111111ull); REG2 = ((REG2 << 3) | REG2) & static_cast(0x1111111111111111ull); REG3 = ((REG3 << 3) | REG3) & static_cast(0x1111111111111111ull); REG4 = ((REG4 << 3) | REG4) & static_cast(0x1111111111111111ull); return REG1 | (REG2 << 1) | (REG3 << 2) | (REG4 << 3); } }//namespace detail template GLM_FUNC_QUALIFIER genIUType mask(genIUType Bits) { GLM_STATIC_ASSERT(std::numeric_limits::is_integer, "'mask' accepts only integer values"); return Bits >= sizeof(genIUType) * 8 ? ~static_cast(0) : (static_cast(1) << Bits) - static_cast(1); } template GLM_FUNC_QUALIFIER vec mask(vec const& v) { GLM_STATIC_ASSERT(std::numeric_limits::is_integer, "'mask' accepts only integer values"); return detail::functor1::call(mask, v); } template GLM_FUNC_QUALIFIER genIType bitfieldRotateRight(genIType In, int Shift) { GLM_STATIC_ASSERT(std::numeric_limits::is_integer, "'bitfieldRotateRight' accepts only integer values"); int const BitSize = static_cast(sizeof(genIType) * 8); return (In << static_cast(Shift)) | (In >> static_cast(BitSize - Shift)); } template GLM_FUNC_QUALIFIER vec bitfieldRotateRight(vec const& In, int Shift) { GLM_STATIC_ASSERT(std::numeric_limits::is_integer, "'bitfieldRotateRight' accepts only integer values"); int const BitSize = static_cast(sizeof(T) * 8); return (In << static_cast(Shift)) | (In >> static_cast(BitSize - Shift)); } template GLM_FUNC_QUALIFIER genIType bitfieldRotateLeft(genIType In, int Shift) { GLM_STATIC_ASSERT(std::numeric_limits::is_integer, "'bitfieldRotateLeft' accepts only integer values"); int const BitSize = static_cast(sizeof(genIType) * 8); return (In >> static_cast(Shift)) | (In << static_cast(BitSize - Shift)); } template GLM_FUNC_QUALIFIER vec bitfieldRotateLeft(vec const& In, int Shift) { GLM_STATIC_ASSERT(std::numeric_limits::is_integer, "'bitfieldRotateLeft' accepts only integer values"); int const BitSize = static_cast(sizeof(T) * 8); return (In >> static_cast(Shift)) | (In << static_cast(BitSize - Shift)); } template GLM_FUNC_QUALIFIER genIUType bitfieldFillOne(genIUType Value, int FirstBit, int BitCount) { return Value | static_cast(mask(BitCount) << FirstBit); } template GLM_FUNC_QUALIFIER vec bitfieldFillOne(vec const& Value, int FirstBit, int BitCount) { return Value | static_cast(mask(BitCount) << FirstBit); } template GLM_FUNC_QUALIFIER genIUType bitfieldFillZero(genIUType Value, int FirstBit, int BitCount) { return Value & static_cast(~(mask(BitCount) << FirstBit)); } template GLM_FUNC_QUALIFIER vec bitfieldFillZero(vec const& Value, int FirstBit, int BitCount) { return Value & static_cast(~(mask(BitCount) << FirstBit)); } GLM_FUNC_QUALIFIER int16 bitfieldInterleave(int8 x, int8 y) { union sign8 { int8 i; uint8 u; } sign_x, sign_y; union sign16 { int16 i; uint16 u; } result; sign_x.i = x; sign_y.i = y; result.u = bitfieldInterleave(sign_x.u, sign_y.u); return result.i; } GLM_FUNC_QUALIFIER uint16 bitfieldInterleave(uint8 x, uint8 y) { return detail::bitfieldInterleave(x, y); } GLM_FUNC_QUALIFIER uint16 bitfieldInterleave(u8vec2 const& v) { return detail::bitfieldInterleave(v.x, v.y); } GLM_FUNC_QUALIFIER u8vec2 bitfieldDeinterleave(glm::uint16 x) { uint16 REG1(x); uint16 REG2(x >>= 1); REG1 = REG1 & static_cast(0x5555); REG2 = REG2 & static_cast(0x5555); REG1 = ((REG1 >> 1) | REG1) & static_cast(0x3333); REG2 = ((REG2 >> 1) | REG2) & static_cast(0x3333); REG1 = ((REG1 >> 2) | REG1) & static_cast(0x0F0F); REG2 = ((REG2 >> 2) | REG2) & static_cast(0x0F0F); REG1 = ((REG1 >> 4) | REG1) & static_cast(0x00FF); REG2 = ((REG2 >> 4) | REG2) & static_cast(0x00FF); REG1 = ((REG1 >> 8) | REG1) & static_cast(0xFFFF); REG2 = ((REG2 >> 8) | REG2) & static_cast(0xFFFF); return glm::u8vec2(REG1, REG2); } GLM_FUNC_QUALIFIER int32 bitfieldInterleave(int16 x, int16 y) { union sign16 { int16 i; uint16 u; } sign_x, sign_y; union sign32 { int32 i; uint32 u; } result; sign_x.i = x; sign_y.i = y; result.u = bitfieldInterleave(sign_x.u, sign_y.u); return result.i; } GLM_FUNC_QUALIFIER uint32 bitfieldInterleave(uint16 x, uint16 y) { return detail::bitfieldInterleave(x, y); } GLM_FUNC_QUALIFIER glm::uint32 bitfieldInterleave(u16vec2 const& v) { return detail::bitfieldInterleave(v.x, v.y); } GLM_FUNC_QUALIFIER glm::u16vec2 bitfieldDeinterleave(glm::uint32 x) { glm::uint32 REG1(x); glm::uint32 REG2(x >>= 1); REG1 = REG1 & static_cast(0x55555555); REG2 = REG2 & static_cast(0x55555555); REG1 = ((REG1 >> 1) | REG1) & static_cast(0x33333333); REG2 = ((REG2 >> 1) | REG2) & static_cast(0x33333333); REG1 = ((REG1 >> 2) | REG1) & static_cast(0x0F0F0F0F); REG2 = ((REG2 >> 2) | REG2) & static_cast(0x0F0F0F0F); REG1 = ((REG1 >> 4) | REG1) & static_cast(0x00FF00FF); REG2 = ((REG2 >> 4) | REG2) & static_cast(0x00FF00FF); REG1 = ((REG1 >> 8) | REG1) & static_cast(0x0000FFFF); REG2 = ((REG2 >> 8) | REG2) & static_cast(0x0000FFFF); return glm::u16vec2(REG1, REG2); } GLM_FUNC_QUALIFIER int64 bitfieldInterleave(int32 x, int32 y) { union sign32 { int32 i; uint32 u; } sign_x, sign_y; union sign64 { int64 i; uint64 u; } result; sign_x.i = x; sign_y.i = y; result.u = bitfieldInterleave(sign_x.u, sign_y.u); return result.i; } GLM_FUNC_QUALIFIER uint64 bitfieldInterleave(uint32 x, uint32 y) { return detail::bitfieldInterleave(x, y); } GLM_FUNC_QUALIFIER glm::uint64 bitfieldInterleave(u32vec2 const& v) { return detail::bitfieldInterleave(v.x, v.y); } GLM_FUNC_QUALIFIER glm::u32vec2 bitfieldDeinterleave(glm::uint64 x) { glm::uint64 REG1(x); glm::uint64 REG2(x >>= 1); REG1 = REG1 & static_cast(0x5555555555555555ull); REG2 = REG2 & static_cast(0x5555555555555555ull); REG1 = ((REG1 >> 1) | REG1) & static_cast(0x3333333333333333ull); REG2 = ((REG2 >> 1) | REG2) & static_cast(0x3333333333333333ull); REG1 = ((REG1 >> 2) | REG1) & static_cast(0x0F0F0F0F0F0F0F0Full); REG2 = ((REG2 >> 2) | REG2) & static_cast(0x0F0F0F0F0F0F0F0Full); REG1 = ((REG1 >> 4) | REG1) & static_cast(0x00FF00FF00FF00FFull); REG2 = ((REG2 >> 4) | REG2) & static_cast(0x00FF00FF00FF00FFull); REG1 = ((REG1 >> 8) | REG1) & static_cast(0x0000FFFF0000FFFFull); REG2 = ((REG2 >> 8) | REG2) & static_cast(0x0000FFFF0000FFFFull); REG1 = ((REG1 >> 16) | REG1) & static_cast(0x00000000FFFFFFFFull); REG2 = ((REG2 >> 16) | REG2) & static_cast(0x00000000FFFFFFFFull); return glm::u32vec2(REG1, REG2); } GLM_FUNC_QUALIFIER int32 bitfieldInterleave(int8 x, int8 y, int8 z) { union sign8 { int8 i; uint8 u; } sign_x, sign_y, sign_z; union sign32 { int32 i; uint32 u; } result; sign_x.i = x; sign_y.i = y; sign_z.i = z; result.u = bitfieldInterleave(sign_x.u, sign_y.u, sign_z.u); return result.i; } GLM_FUNC_QUALIFIER uint32 bitfieldInterleave(uint8 x, uint8 y, uint8 z) { return detail::bitfieldInterleave(x, y, z); } GLM_FUNC_QUALIFIER uint32 bitfieldInterleave(u8vec3 const& v) { return detail::bitfieldInterleave(v.x, v.y, v.z); } GLM_FUNC_QUALIFIER int64 bitfieldInterleave(int16 x, int16 y, int16 z) { union sign16 { int16 i; uint16 u; } sign_x, sign_y, sign_z; union sign64 { int64 i; uint64 u; } result; sign_x.i = x; sign_y.i = y; sign_z.i = z; result.u = bitfieldInterleave(sign_x.u, sign_y.u, sign_z.u); return result.i; } GLM_FUNC_QUALIFIER uint64 bitfieldInterleave(uint16 x, uint16 y, uint16 z) { return detail::bitfieldInterleave(x, y, z); } GLM_FUNC_QUALIFIER uint64 bitfieldInterleave(u16vec3 const& v) { return detail::bitfieldInterleave(v.x, v.y, v.z); } GLM_FUNC_QUALIFIER int64 bitfieldInterleave(int32 x, int32 y, int32 z) { union sign16 { int32 i; uint32 u; } sign_x, sign_y, sign_z; union sign64 { int64 i; uint64 u; } result; sign_x.i = x; sign_y.i = y; sign_z.i = z; result.u = bitfieldInterleave(sign_x.u, sign_y.u, sign_z.u); return result.i; } GLM_FUNC_QUALIFIER uint64 bitfieldInterleave(uint32 x, uint32 y, uint32 z) { return detail::bitfieldInterleave(x, y, z); } GLM_FUNC_QUALIFIER uint64 bitfieldInterleave(u32vec3 const& v) { return detail::bitfieldInterleave(v.x, v.y, v.z); } GLM_FUNC_QUALIFIER int32 bitfieldInterleave(int8 x, int8 y, int8 z, int8 w) { union sign8 { int8 i; uint8 u; } sign_x, sign_y, sign_z, sign_w; union sign32 { int32 i; uint32 u; } result; sign_x.i = x; sign_y.i = y; sign_z.i = z; sign_w.i = w; result.u = bitfieldInterleave(sign_x.u, sign_y.u, sign_z.u, sign_w.u); return result.i; } GLM_FUNC_QUALIFIER uint32 bitfieldInterleave(uint8 x, uint8 y, uint8 z, uint8 w) { return detail::bitfieldInterleave(x, y, z, w); } GLM_FUNC_QUALIFIER uint32 bitfieldInterleave(u8vec4 const& v) { return detail::bitfieldInterleave(v.x, v.y, v.z, v.w); } GLM_FUNC_QUALIFIER int64 bitfieldInterleave(int16 x, int16 y, int16 z, int16 w) { union sign16 { int16 i; uint16 u; } sign_x, sign_y, sign_z, sign_w; union sign64 { int64 i; uint64 u; } result; sign_x.i = x; sign_y.i = y; sign_z.i = z; sign_w.i = w; result.u = bitfieldInterleave(sign_x.u, sign_y.u, sign_z.u, sign_w.u); return result.i; } GLM_FUNC_QUALIFIER uint64 bitfieldInterleave(uint16 x, uint16 y, uint16 z, uint16 w) { return detail::bitfieldInterleave(x, y, z, w); } GLM_FUNC_QUALIFIER uint64 bitfieldInterleave(u16vec4 const& v) { return detail::bitfieldInterleave(v.x, v.y, v.z, v.w); } }//namespace glm