| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id$"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* Convert between RMATRIX and CMATRIX types |
| 6 |
* |
| 7 |
* Segregated because it depends on both sublibraries |
| 8 |
*/ |
| 9 |
|
| 10 |
#include "rmatrix.h" |
| 11 |
|
| 12 |
/* Convert a color matrix to newly allocated RMATRIX buffer */ |
| 13 |
RMATRIX * |
| 14 |
rmx_from_cmatrix(const CMATRIX *cm) |
| 15 |
{ |
| 16 |
RMATRIX *dnew; |
| 17 |
|
| 18 |
if (!cm) |
| 19 |
return(NULL); |
| 20 |
dnew = rmx_alloc(cm->nrows, cm->ncols, 3); |
| 21 |
if (!dnew) |
| 22 |
return(NULL); |
| 23 |
|
| 24 |
dnew->dtype = sizeof(COLORV)==sizeof(float) ? |
| 25 |
DTfloat : DTdouble; |
| 26 |
|
| 27 |
if (sizeof(COLORV) == sizeof(rmx_dtype)) { |
| 28 |
memcpy(dnew->mtx, cm->cmem, rmx_array_size(dnew)); |
| 29 |
} else { |
| 30 |
int i, j; |
| 31 |
for (i = dnew->nrows; i--; ) |
| 32 |
for (j = dnew->ncols; j--; ) { |
| 33 |
const COLORV *cv = cm_lval(cm,i,j); |
| 34 |
rmx_dtype *dp = rmx_lval(dnew,i,j); |
| 35 |
dp[0] = cv[0]; |
| 36 |
dp[1] = cv[1]; |
| 37 |
dp[2] = cv[2]; |
| 38 |
} |
| 39 |
} |
| 40 |
return(dnew); |
| 41 |
} |
| 42 |
|
| 43 |
/* Convert general matrix to newly allocated CMATRIX buffer */ |
| 44 |
CMATRIX * |
| 45 |
cm_from_rmatrix(const RMATRIX *rm) |
| 46 |
{ |
| 47 |
CMATRIX *cnew; |
| 48 |
|
| 49 |
if (!rm || !rm->mtx | (rm->ncomp == 2) | (rm->ncomp > MAXCOMP)) |
| 50 |
return(NULL); |
| 51 |
cnew = cm_alloc(rm->nrows, rm->ncols); |
| 52 |
if (!cnew) |
| 53 |
return(NULL); |
| 54 |
if ((sizeof(COLORV) == sizeof(rmx_dtype)) & (rm->ncomp == 3)) { |
| 55 |
memcpy(cnew->cmem, rm->mtx, rmx_array_size(rm)); |
| 56 |
} else { |
| 57 |
int i, j; |
| 58 |
for (i = cnew->nrows; i--; ) |
| 59 |
for (j = cnew->ncols; j--; ) { |
| 60 |
const rmx_dtype *dp = rmx_val(rm,i,j); |
| 61 |
COLORV *cv = cm_lval(cnew,i,j); |
| 62 |
switch (rm->ncomp) { |
| 63 |
case 3: |
| 64 |
setcolor(cv, dp[0], dp[1], dp[2]); |
| 65 |
break; |
| 66 |
case 1: |
| 67 |
setcolor(cv, dp[0], dp[0], dp[0]); |
| 68 |
break; |
| 69 |
default: |
| 70 |
if (sizeof(COLORV) == sizeof(rmx_dtype)) { |
| 71 |
scolor2color(cv, (const COLORV *)dp, |
| 72 |
rm->ncomp, rm->wlpart); |
| 73 |
} else { |
| 74 |
COLORV scol[MAXCOMP]; |
| 75 |
int k = rm->ncomp; |
| 76 |
while (k--) scol[k] = dp[k]; |
| 77 |
scolor2color(cv, scol, rm->ncomp, rm->wlpart); |
| 78 |
} |
| 79 |
break; |
| 80 |
} |
| 81 |
} |
| 82 |
} |
| 83 |
return(cnew); |
| 84 |
} |
