1 /* 2 * tvtypes.h 3 * 4 * Basic types used in the TV app. 5 * 6 * (C) 1997 Randall Hopper 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are 10 * met: 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 2. 12 * Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 23 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 30 #ifndef __TVTYPES_H 31 #define __TVTYPES_H 32 33 #include <sys/param.h> 34 #include <math.h> 35 #include <string.h> 36 37 typedef unsigned char TV_UINT8; 38 typedef signed char TV_INT8; 39 typedef unsigned short TV_UINT16; 40 typedef short TV_INT16; 41 typedef unsigned long TV_UINT32; 42 typedef long TV_INT32; 43 44 typedef TV_INT32 TV_BOOL; 45 46 typedef struct { 47 TV_INT32 x,y,w,h; 48 } TV_GEOM; 49 50 typedef enum { 51 TV_TRANSFER_STD_IMAGE = 0x1, 52 TV_TRANSFER_SHMEM_IMAGE = 0x2, 53 TV_TRANSFER_SHMEM_PIXMAP = 0x4, 54 TV_TRANSFER_DIRECT = 0x8 55 } TV_TRANSFER_MODE; 56 57 #define DOUBLE_EPS 1e-7 58 #define FLOAT_EPS 1e-4 59 60 #define APPROX(x,y,e) (fabs( (x)-(y) ) < (e)) 61 #define INRANGE(x,a,b,e) ( ((x) >= (a)-(e)) && ((x) <= (b)+(e)) ) 62 63 #define SHIFT_AND_MASK(val,lshf,msk) \ 64 (((lshf) >= 0) ? (((val) << (lshf)) & (msk)) \ 65 : (((val) >> -(lshf)) & (msk))) 66 67 #ifndef MIN 68 # define MIN(a,b) ((a) < (b) ? (a) : (b)) 69 #endif 70 #ifndef MAX 71 # define MAX(a,b) ((a) > (b) ? (a) : (b)) 72 #endif 73 74 #define STREQ(a,b) (strcmp((a),(b)) == 0) 75 76 #ifdef __cplusplus 77 extern "C" { 78 #endif 79 80 #ifdef __cplusplus 81 } /* Close 'extern "C"' */ 82 #endif 83 84 #endif 85