blind

suckless command-line video editing utility
git clone git://git.suckless.org/blind
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commit ab3fc0fa703bc112938360c77200bd4ecb6bd503
parent 9e9a962e2f115d0df0599cb84bdbc5009ea7de12
Author: Mattias Andrée <maandree@kth.se>
Date:   Thu, 13 Jul 2017 04:50:57 +0200

Add blind-rectangle-tessellation, blind-triangle-tessellation, and blind-hexagon-tessellation

Signed-off-by: Mattias Andrée <maandree@kth.se>

Diffstat:
Makefile | 3+++
src/blind-hexagon-tessellation.c | 108+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
src/blind-rectangle-tessellation.c | 72++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
src/blind-triangle-tessellation.c | 93+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 276 insertions(+), 0 deletions(-)

diff --git a/Makefile b/Makefile @@ -36,6 +36,7 @@ BIN =\ blind-from-video\ blind-gauss-blur\ blind-get-colours\ + blind-hexagon-tessellation\ blind-interleave\ blind-invert-luma\ blind-linear-gradient\ @@ -46,6 +47,7 @@ BIN =\ blind-premultiply\ blind-radial-gradient\ blind-read-head\ + blind-rectangle-tessellation\ blind-repeat\ blind-repeat-tessellation\ blind-reverse\ @@ -76,6 +78,7 @@ BIN =\ blind-to-video\ blind-translate\ blind-transpose\ + blind-triangle-tessellation\ blind-unpremultiply\ blind-vector-projection\ blind-write-head\ diff --git a/src/blind-hexagon-tessellation.c b/src/blind-hexagon-tessellation.c @@ -0,0 +1,108 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + +USAGE("[-F pixel-format] block-diameter") + +#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 diameter; + const char *pixfmt = "xyza"; + size_t pixwidth = 4; + char *colours; + size_t x, y, y2; + int k; + + ARGBEGIN { + case 'F': + pixfmt = UARGF(); + break; + default: + usage(); + } ARGEND; + + if (argc != 1) + usage(); + + diameter = etozu_arg("block-diameter", argv[0], 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 = (size_t)(diameter * sqrt(3.)); + stream.height = diameter * 3 / 2; + fprint_stream_head(stdout, &stream); + efflush(stdout, "<stdout>"); + + for (y = 0; y < stream.height; y++) { + for (x = 0; x < stream.width; x++) { + if (y * 4 < diameter) { + switch (x * 4 / stream.width) { + case 0: + k = 2 * (4 * x * diameter < stream.width * diameter - 4 * y * stream.width); + break; + case 1: + k = 3 * (4 * x * diameter - stream.width * diameter > 4 * y * stream.width); + break; + case 2: + k = 1 + 2 * (3 * diameter * stream.width - 4 * x * diameter > 4 * y * stream.width); + break; + default: + k = 1 + (4 * x * diameter - 3 * stream.width * diameter > 4 * y * stream.width); + break; + } + } else if (y * 4 < diameter * 3) { + k = (x * 2 >= stream.width); + } else if (y < diameter) { + y2 = diameter - y; + switch (x * 4 / stream.width) { + case 0: + k = 2 * (4 * x * diameter < stream.width * diameter - 4 * y2 * stream.width); + break; + case 1: + k = 3 * (4 * x * diameter - stream.width * diameter > 4 * y2 * stream.width); + break; + case 2: + k = 1 + 2 * (3 * diameter * stream.width - 4 * x * diameter > 4 * y2 * stream.width); + break; + default: + k = 1 + (4 * x * diameter - 3 * stream.width * diameter > 4 * y2 * stream.width); + break; + } + } else { + k = (stream.width <= x * 4 && x * 4 < stream.width * 3) + 2; + } + ewriteall(STDOUT_FILENO, colours + k * pixwidth, pixwidth, "<stdout>"); + } + } + + return 0; +} diff --git a/src/blind-rectangle-tessellation.c b/src/blind-rectangle-tessellation.c @@ -0,0 +1,72 @@ +/* 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; +} diff --git a/src/blind-triangle-tessellation.c b/src/blind-triangle-tessellation.c @@ -0,0 +1,93 @@ +/* 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(8 * pixwidth),\ + ((TYPE *)colours)[ 0] = (TYPE)0.412457445582367600,\ + ((TYPE *)colours)[ 1] = (TYPE)0.212673370378408280,\ + ((TYPE *)colours)[ 2] = (TYPE)0.019333942761673460,\ + ((TYPE *)colours)[ 3] = (TYPE)1,\ + ((TYPE *)colours)[ 4] = (TYPE)0.206228722791183800,\ + ((TYPE *)colours)[ 5] = (TYPE)0.106336685189204140,\ + ((TYPE *)colours)[ 6] = (TYPE)0.009666971380836730,\ + ((TYPE *)colours)[ 7] = (TYPE)1,\ + ((TYPE *)colours)[ 8] = (TYPE)0.770033310827883400,\ + ((TYPE *)colours)[ 9] = (TYPE)0.927825100869440000,\ + ((TYPE *)colours)[10] = (TYPE)0.138525897843512050,\ + ((TYPE *)colours)[11] = (TYPE)1,\ + ((TYPE *)colours)[12] = (TYPE)0.385016655413941700,\ + ((TYPE *)colours)[13] = (TYPE)0.463912550434720000,\ + ((TYPE *)colours)[14] = (TYPE)0.069262948921756020,\ + ((TYPE *)colours)[15] = (TYPE)1,\ + ((TYPE *)colours)[16] = (TYPE)0.357575865245515900,\ + ((TYPE *)colours)[17] = (TYPE)0.715151730491031800,\ + ((TYPE *)colours)[18] = (TYPE)0.119191955081838600,\ + ((TYPE *)colours)[19] = (TYPE)1,\ + ((TYPE *)colours)[20] = (TYPE)0.178787932622757940,\ + ((TYPE *)colours)[21] = (TYPE)0.357575865245515900,\ + ((TYPE *)colours)[22] = (TYPE)0.059595977540919300,\ + ((TYPE *)colours)[23] = (TYPE)1,\ + ((TYPE *)colours)[24] = (TYPE)(1.0 * D65_XYZ_X),\ + ((TYPE *)colours)[25] = (TYPE)(1.0),\ + ((TYPE *)colours)[26] = (TYPE)(1.0 * D65_XYZ_Z),\ + ((TYPE *)colours)[27] = (TYPE)1,\ + ((TYPE *)colours)[28] = (TYPE)(0.5 * D65_XYZ_X),\ + ((TYPE *)colours)[29] = (TYPE)(0.5),\ + ((TYPE *)colours)[30] = (TYPE)(0.5 * D65_XYZ_Z),\ + ((TYPE *)colours)[31] = (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, k; + + 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++) { + k = y1 * 4 + x1 * 2 + (x2 * height > y2 * width); + ewriteall(STDOUT_FILENO, colours + k * pixwidth, pixwidth, "<stdout>"); + } + } + } + } + + return 0; +}