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#include <string.h>
#include "psdriver.h"
static int masked;
void PS_begin_scaled_raster(int mask, int src[2][2], int dst[2][2])
{
const char *type = true_color ? (mask ? "RASTERRGBMASK" : "RASTERRGB")
: (mask ? "RASTERGRAYMASK" : "RASTERGRAY");
int ssx = src[0][1] - src[0][0];
int ssy = src[1][1] - src[1][0];
int sox = src[0][0];
int soy = src[1][0];
int dsx = dst[0][1] - dst[0][0];
int dsy = dst[1][1] - dst[1][0];
int dox = dst[0][0];
int doy = dst[1][0];
masked = mask;
output("gsave\n");
output("%d %d translate %d %d scale\n", dox, doy, dsx, dsy);
output("%d %d [%d 0 0 %d %d %d] %s\n", ssx, ssy, ssx, ssy, sox, soy,
type);
}
int PS_scaled_raster(int n, int row,
const unsigned char *red, const unsigned char *grn,
const unsigned char *blu, const unsigned char *nul)
{
int i;
for (i = 0; i < n; i++) {
if (true_color) {
if (masked)
output("%02X%02X%02X%02X", (nul && nul[i]) ? 0xFF : 0x00,
red[i], grn[i], blu[i]);
else
output("%02X%02X%02X", red[i], grn[i], blu[i]);
}
else {
unsigned int gray =
(unsigned int)(red[i] * 0.299 + grn[i] * 0.587 +
blu[i] * 0.114);
if (masked)
output("%02X%02X", (nul && nul[i]) ? 0xFF : 0x00, gray);
else
output("%02X", gray);
}
}
output("\n");
return row + 1;
}
void PS_end_scaled_raster(void)
{
output("grestore\n");
}
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