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/******************************************************************************
* recordMyDesktop *
*******************************************************************************
* *
* Copyright (C) 2006,2007,2008 John Varouhakis *
* *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
* *
* *
* *
* For further information contact me at johnvarouhakis@gmail.com *
******************************************************************************/
#ifndef RMDMACRO_H
#define RMDMACRO_H 1
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "rmdtypes.h"
//define which way we are reading a pixmap
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define __ABYTE 3
#define __RBYTE 2
#define __GBYTE 1
#define __BBYTE 0
#elif __BYTE_ORDER == __BIG_ENDIAN
#define __ABYTE 0
#define __RBYTE 1
#define __GBYTE 2
#define __BBYTE 3
#else
#error Only little-endian and big-endian systems are supported
#endif
#define __RVALUE_32(tmp_val) (((tmp_val)&0x00ff0000)>>16)
#define __GVALUE_32(tmp_val) (((tmp_val)&0x0000ff00)>>8)
#define __BVALUE_32(tmp_val) (((tmp_val)&0x000000ff))
#define __R16_MASK 0xf800
#define __G16_MASK 0x7e0
#define __B16_MASK 0x1f
#define __RVALUE_16(tmp_val) ((((tmp_val)&__R16_MASK)>>11)*8)
#define __GVALUE_16(tmp_val) ((((tmp_val)&__G16_MASK)>>5)*4)
#define __BVALUE_16(tmp_val) ((((tmp_val)&__B16_MASK))*8)
//xfixes pointer data are written as unsigned long
//(even though the server returns CARD32)
//so we need to set the step accordingly to
//avoid problems (amd64 has 8byte ulong)
#define RMD_ULONG_SIZE_T (sizeof(unsigned long))
//size of stride when comparing planes(depending on type)
//this is just to avoid thousands of sizeof's
#ifdef HAVE_U_INT64_T
#define COMPARE_STRIDE 8
#else
#define COMPARE_STRIDE 4
#endif
//The width, in bytes, of the blocks
//on which the y,u and v planes are broken.
//These blocks are square.
#define Y_UNIT_WIDTH 0x0010
#define UV_UNIT_WIDTH 0x0008
#ifdef HAVE_LIBASOUND
#define DEFAULT_AUDIO_DEVICE "hw:0,0"
#else
#define DEFAULT_AUDIO_DEVICE "/dev/dsp"
#endif
#define AVG_4_PIXELS(data_array,width_img,k_tm,i_tm,offset)\
((data_array[(k_tm*width_img+i_tm)*RMD_ULONG_SIZE_T+offset]+\
data_array[((k_tm-1)*width_img+i_tm)*RMD_ULONG_SIZE_T+offset]+\
data_array[(k_tm*width_img+i_tm-1)*RMD_ULONG_SIZE_T+offset]+\
data_array[((k_tm-1)*width_img+i_tm-1)*RMD_ULONG_SIZE_T+offset])/4)
//the 4 most significant bytes represent the A component which
//does not need to be added on t_val, as it is always unused
#define CALC_TVAL_AVG_32(t_val,datapi,datapi_next){\
register unsigned int t1,t2,t3,t4;\
t1=*datapi;\
t2=*(datapi+1);\
t3=*datapi_next;\
t4=*(datapi_next+1);\
t_val=((((t1&0x00ff0000) +(t2&0x00ff0000)+\
(t3&0x00ff0000)+(t4&0x00ff0000))/4)&0x00ff0000)+\
((((t1&0x0000ff00) +(t2&0x0000ff00)+\
(t3&0x0000ff00)+(t4&0x0000ff00))/4)&0x0000ff00)+\
((((t1&0x000000ff) +(t2&0x000000ff)+\
(t3&0x000000ff)+(t4&0x000000ff))/4)&0x000000ff);\
}
//when adding the r values, we go beyond
//the (16 bit)range of the t_val variable, but we are performing
//32 bit arithmetics, so there's no problem.
//(This note is useless, I'm just adding because
//the addition of the A components in CALC_TVAL_AVG_32,
//now removed as uneeded, produced an overflow which would have caused
//color distrtion, where it one of the R,G or B components)
#define CALC_TVAL_AVG_16(t_val,datapi,datapi_next){\
register u_int16_t t1,t2,t3,t4;\
t1=*datapi;\
t2=*(datapi+1);\
t3=*datapi_next;\
t4=*(datapi_next+1);\
t_val=((((t1&__R16_MASK) +(t2&__R16_MASK)+\
(t3&__R16_MASK)+(t4&__R16_MASK))/4)&__R16_MASK)+\
((((t1&__G16_MASK) +(t2&__G16_MASK)+\
(t3&__G16_MASK)+(t4&__G16_MASK))/4)&__G16_MASK)+\
((((t1&__B16_MASK) +(t2&__B16_MASK)+\
(t3&__B16_MASK)+(t4&__B16_MASK))/4)&__B16_MASK);\
}
#define I16TOA(number,buffer){\
int t_num=(number),__k=0,__i=0;\
char *t_buf=malloc(8);\
t_num=t_num&((2<<15)-1);\
while(t_num>0){\
int digit=t_num%10;\
t_buf[__k]=digit+48;\
t_num-=digit;\
t_num/=10;\
__k++;\
}\
while(__k>0)\
(buffer)[__i++]=t_buf[--__k];\
(buffer)[__i]='\0';\
free(t_buf);\
};\
#define CLEAR_FRAME(frame_t){\
free((frame_t)->YData);\
free((frame_t)->UData);\
free((frame_t)->VData);\
};
#endif
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