diff options
Diffstat (limited to '')
| -rw-r--r-- | src/blind-linear-gradient.c | 99 |
1 files changed, 52 insertions, 47 deletions
diff --git a/src/blind-linear-gradient.c b/src/blind-linear-gradient.c index 1865ae6..57cde3c 100644 --- a/src/blind-linear-gradient.c +++ b/src/blind-linear-gradient.c @@ -1,4 +1,5 @@ /* See LICENSE file for copyright and license details. */ +#ifndef TYPE #include "common.h" USAGE("[-b] -w width -h height") @@ -7,53 +8,8 @@ static int bilinear = 0; static size_t width = 0; static size_t height = 0; -#define PROCESS(TYPE, SUFFIX)\ - static void\ - process_##SUFFIX(struct stream *stream)\ - {\ - typedef TYPE pixel_t[4];\ - pixel_t buf[BUFSIZ / sizeof(pixel_t)];\ - TYPE *params, x1, y1, x2, y2, norm2;\ - TYPE x, y;\ - size_t ix, iy, ptr = 0;\ - for (;;) {\ - while (stream->ptr < stream->frame_size) {\ - if (!eread_stream(stream, stream->frame_size - stream->ptr)) {\ - ewriteall(STDOUT_FILENO, buf, ptr * sizeof(*buf), "<stdout>");\ - return;\ - }\ - }\ - params = (TYPE *)stream->buf;\ - x1 = (params)[0];\ - y1 = (params)[1];\ - x2 = (params)[4];\ - y2 = (params)[5];\ - memmove(stream->buf, stream->buf + stream->frame_size,\ - stream->ptr -= stream->frame_size);\ - \ - x2 -= x1;\ - y2 -= y1;\ - norm2 = x2 * x2 + y2 * y2;\ - \ - for (iy = 0; iy < height; iy++) {\ - y = (TYPE)iy - y1;\ - for (ix = 0; ix < width; ix++) {\ - x = (TYPE)ix - x1;\ - x = (x * x2 + y * y2) / norm2;\ - if (bilinear)\ - x = abs(x);\ - buf[ptr][0] = buf[ptr][1] = buf[ptr][2] = buf[ptr][3] = x;\ - if (++ptr == ELEMENTSOF(buf)) {\ - ewriteall(STDOUT_FILENO, buf, sizeof(buf), "<stdout>");\ - ptr = 0;\ - }\ - }\ - }\ - }\ - } - -PROCESS(double, lf) -PROCESS(float, f) +#define FILE "blind-linear-gradient.c" +#include "define-functions.h" int main(int argc, char *argv[]) @@ -97,3 +53,52 @@ main(int argc, char *argv[]) process(&stream); return 0; } + +#else + +static void +PROCESS(struct stream *stream) +{ + typedef TYPE pixel_t[4]; + pixel_t buf[BUFSIZ / sizeof(pixel_t)]; + TYPE *params, x1, y1, x2, y2, norm2; + TYPE x, y; + size_t ix, iy, ptr = 0; + + for (;;) { + while (stream->ptr < stream->frame_size) { + if (!eread_stream(stream, stream->frame_size - stream->ptr)) { + ewriteall(STDOUT_FILENO, buf, ptr * sizeof(*buf), "<stdout>"); + return; + } + } + params = (TYPE *)stream->buf; + x1 = (params)[0]; + y1 = (params)[1]; + x2 = (params)[4]; + y2 = (params)[5]; + memmove(stream->buf, stream->buf + stream->frame_size, + stream->ptr -= stream->frame_size); + + x2 -= x1; + y2 -= y1; + norm2 = x2 * x2 + y2 * y2; + + for (iy = 0; iy < height; iy++) { + y = (TYPE)iy - y1; + for (ix = 0; ix < width; ix++) { + x = (TYPE)ix - x1; + x = (x * x2 + y * y2) / norm2; + if (bilinear) + x = abs(x); + buf[ptr][0] = buf[ptr][1] = buf[ptr][2] = buf[ptr][3] = x; + if (++ptr == ELEMENTSOF(buf)) { + ewriteall(STDOUT_FILENO, buf, sizeof(buf), "<stdout>"); + ptr = 0; + } + } + } + } +} + +#endif |