Lines Matching +full:intel +full:- +full:ui

2  * Mesa 3-D graphics library
4  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
7  * Copyright (C) 2018-2019 Intel Corporation
39  * Convert a 4-byte float to a 2-byte half float.
47  *   - It has no sign bias.
49  *   - It reproduces the behavior of real hardware: opcode F32TO16 in Intel's
52  *   - By reproducing the behavior of the GPU (at least on Intel hardware),
53  *     compile-time evaluation of constant packHalf2x16 GLSL expressions will
72       /* m = 0; - already set */  in _mesa_float_to_half_slow()
76       /* denorm -- denorm float maps to 0 half */  in _mesa_float_to_half_slow()
77       /* m = 0; - already set */  in _mesa_float_to_half_slow()
82       /* m = 0; - already set */  in _mesa_float_to_half_slow()
96       const int new_exp = flt_e - 127;  in _mesa_float_to_half_slow()
97       if (new_exp < -14) {  in _mesa_float_to_half_slow()
107          /* m = 0; - already set */  in _mesa_float_to_half_slow()
142  * Convert a 2-byte half float to a 4-byte float.
153    infnan.ui = 0x8f << 23;  in _mesa_half_to_float_slow()
155    magic.ui  = 0xef << 23;  in _mesa_half_to_float_slow()
158    f32.ui = (val & 0x7fff) << 13;  in _mesa_half_to_float_slow()
166       f32.ui |= 0xff << 23;  in _mesa_half_to_float_slow()
169    f32.ui |= (uint32_t)(val & 0x8000) << 16;  in _mesa_half_to_float_slow()
175   * Takes a uint16_t, divides by 65536, converts the infinite-precision
176   * result to fp16 with round-to-zero. Used by the ASTC decoder.
186    int n = __builtin_clz(v) - 16;  in _mesa_uint16_div_64k_to_half()
189    for (int i = 15; i >= 0; i--) {  in _mesa_uint16_div_64k_to_half()
191          n = 15 - i;  in _mesa_uint16_div_64k_to_half()
202    /*  (0{n} 1 X{15-n}) * 2^-16  in _mesa_uint16_div_64k_to_half()
203     * = 1.X * 2^(15-n-16)  in _mesa_uint16_div_64k_to_half()
204     * = 1.X * 2^(14-n - 15)  in _mesa_uint16_div_64k_to_half()
205     * which is the FP16 form with e = 14 - n  in _mesa_uint16_div_64k_to_half()
207    int e = 14 - n;  in _mesa_uint16_div_64k_to_half()