Capsim Block Documentation
This star creates a two real buffers from one complex input buffer.
Num | Type | Name | Initial Value | Description |
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0 | int | numOutBuffers | ||
1 | int | numInBuffers |
int no_samples; float a,b; complex inSamp; |
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/* store as state the number of input/output buffers */ if((numInBuffers = NO_INPUT_BUFFERS()) < 1) { fprintf(stderr,"cxmakereal: no input buffers\n"); return(2); } if(numInBuffers >1 ) { fprintf(stderr,"cxmakecx: too many inputs connected\n"); return(3); } if((numOutBuffers = NO_OUTPUT_BUFFERS()) < 1) { fprintf(stderr,"cxmakecx: no output buffers\n"); return(4); } SET_CELL_SIZE_IN(0,sizeof(complex)); |
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/* note the minimum number of samples on the */ /* input buffers and iterate that many times */ for(no_samples=(MIN_AVAIL() );no_samples >0; --no_samples) { IT_IN(0); inSamp = INCX(0,0); if(numOutBuffers == 1) { if(IT_OUT(0)) { KrnOverflow("cxmakereal",0); return(99); } OUTF(0,0) = inSamp.re; } else { if(IT_OUT(0)) { KrnOverflow("cxmakereal",0); return(99); } OUTF(0,0) = inSamp.re; if(IT_OUT(1)) { KrnOverflow("cxmakereal",1); return(99); } OUTF(1,0) = inSamp.im; } } return(0); |
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/* Capsim (r) Text Mode Kernel (TMK) Star Library (Blocks) Copyright (C) 1989-2017 Silicon DSP Corporation This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA http://www.silicondsp.com Silicon DSP Corporation Las Vegas, Nevada */ |
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/* cxmakereal.s */ /*************************************************************** cxmakereal() **************************************************************** Inputs: one complex channels Outputs: two real channels for the real and imaginary parts Parameters: None **************************************************************** This star creates a two real buffers from one complex input buffer. If one output buffer(buffer 0) is connected, only the real part is output. If two input channels exist then the second channel (buffer 1) is the imaginary part of the complex input sample. |
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