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/* See LICENSE file for copyright and license details. */
#include "common.h"
USAGE("[-F pixel-format] block-width block-height")
#define SET_XYZA(TYPE)\
(pixwidth *= sizeof(double),\
colours = alloca(4 * pixwidth),\
((TYPE *)colours)[ 0] = (TYPE)(0.0000 * D65_XYZ_X),\
((TYPE *)colours)[ 1] = (TYPE)(0.0000),\
((TYPE *)colours)[ 2] = (TYPE)(0.0000 * D65_XYZ_Z),\
((TYPE *)colours)[ 3] = (TYPE)1,\
((TYPE *)colours)[ 4] = (TYPE)(0.3333 * D65_XYZ_X),\
((TYPE *)colours)[ 5] = (TYPE)(0.3333),\
((TYPE *)colours)[ 6] = (TYPE)(0.3333 * D65_XYZ_Z),\
((TYPE *)colours)[ 7] = (TYPE)1,\
((TYPE *)colours)[ 8] = (TYPE)(0.6667 * D65_XYZ_X),\
((TYPE *)colours)[ 9] = (TYPE)(0.6667),\
((TYPE *)colours)[10] = (TYPE)(0.6667 * D65_XYZ_Z),\
((TYPE *)colours)[11] = (TYPE)1,\
((TYPE *)colours)[12] = (TYPE)(1.0000 * D65_XYZ_X),\
((TYPE *)colours)[13] = (TYPE)(1.0000),\
((TYPE *)colours)[14] = (TYPE)(1.0000 * D65_XYZ_Z),\
((TYPE *)colours)[15] = (TYPE)1)
static struct stream stream = { .width = 0, .height = 0, .frames = 1 };
int
main(int argc, char *argv[])
{
size_t width, height;
const char *pixfmt = "xyza";
size_t pixwidth = 4;
char *colours;
size_t x1, y1, x2, y2;
ARGBEGIN {
case 'F':
pixfmt = UARGF();
break;
default:
usage();
} ARGEND;
if (argc != 2)
usage();
width = etozu_arg("block-width", argv[0], 1, SIZE_MAX);
height = etozu_arg("block-height", argv[1], 1, SIZE_MAX);
pixfmt = get_pixel_format(pixfmt, "xyza");
if (!strcmp(pixfmt, "xyza"))
SET_XYZA(double);
else if (!strcmp(pixfmt, "xyza f"))
SET_XYZA(float);
else
eprintf("pixel format %s is not supported, try xyza\n", pixfmt);
strcpy(stream.pixfmt, pixfmt);
stream.width = 2 * width;
stream.height = 2 * height;
fprint_stream_head(stdout, &stream);
efflush(stdout, "<stdout>");
for (y1 = 0; y1 < 2; y1++)
for (y2 = 0; y2 < height; y2++)
for (x1 = 0; x1 < 2; x1++)
for (x2 = 0; x2 < width; x2++)
ewriteall(STDOUT_FILENO, colours + (y1 * 2 + x1) * pixwidth, pixwidth, "<stdout>");
return 0;
}
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