chris@162: /**
chris@162:  * Copyright (c) 2014, 2015, Enzien Audio Ltd.
chris@162:  *
chris@162:  * Permission to use, copy, modify, and/or distribute this software for any
chris@162:  * purpose with or without fee is hereby granted, provided that the above
chris@162:  * copyright notice and this permission notice appear in all copies.
chris@162:  *
chris@162:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
chris@162:  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
chris@162:  * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
chris@162:  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
chris@162:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
chris@162:  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
chris@162:  * PERFORMANCE OF THIS SOFTWARE.
chris@162:  */
chris@162: 
chris@162: #include "Utils_windows.h"
chris@162: 
chris@162: #if HV_WIN
chris@162: 
chris@162: hv_size_t hv_max_ui(hv_size_t x, hv_size_t y) {
chris@162:   return (x >= y) ? x : y;
chris@162: }
chris@162: 
chris@162: hv_size_t hv_min_ui(hv_size_t x, hv_size_t y) {
chris@162:   return (x <= y) ? x : y;
chris@162: }
chris@162: 
chris@162: int hv_max_i(int x, int y) {
chris@162:   return (x >= y) ? x : y;
chris@162: }
chris@162: 
chris@162: int hv_min_i(int x, int y) {
chris@162:   return (x <= y) ? x : y;
chris@162: }
chris@162: 
chris@162: hv_uint32_t hv_min_max_log2(hv_uint32_t x) {
chris@162: #if HV_MSVC
chris@162:   // finds ceil(log2(x))
chris@162:   // http://stackoverflow.com/questions/2589096/find-most-significant-bit-left-most-that-is-set-in-a-bit-array
chris@162:   // http://msdn.microsoft.com/en-us/library/fbxyd7zd%28v=VS.80%29.aspx
chris@162:   unsigned long z = 0;
chris@162:   _BitScanReverse(&z, x);
chris@162:   return (hv_uint32_t) (z+1);
chris@162: #else
chris@162:   return (hv_uint32_t) ((8 * sizeof(unsigned int)) - __builtin_clz(x-1));
chris@162: #endif // HV_MSVC
chris@162: }
chris@162: 
chris@162: #if HV_MSVC
chris@162: int hv_snprintf(char* str, hv_size_t size, const char* format, ...) {
chris@162:   // http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010
chris@162: 	int count = -1;
chris@162: 	va_list ap;
chris@162: 	va_start(ap, format);
chris@162: 
chris@162: 	if (size != 0) {
chris@162: 		count = _vsnprintf_s(str, size, _TRUNCATE, format, ap);
chris@162: 	}
chris@162: 	if (count == -1) {
chris@162: 		count = _vscprintf(format, ap);
chris@162: 	}
chris@162: 	va_end(ap);
chris@162: 	return count;
chris@162: }
chris@162: #endif // HV_MSVC
chris@162: #endif // HV_WIN
chris@162: