From 7b09710392d35fb55b52031d447a542d99fc6b4b Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Tue, 19 Aug 2014 17:10:03 -0400 Subject: Modularize the libdimension codebase. --- libdimension/model/pigments/pigment_map.c | 96 +++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 libdimension/model/pigments/pigment_map.c (limited to 'libdimension/model/pigments/pigment_map.c') diff --git a/libdimension/model/pigments/pigment_map.c b/libdimension/model/pigments/pigment_map.c new file mode 100644 index 0000000..a74a66a --- /dev/null +++ b/libdimension/model/pigments/pigment_map.c @@ -0,0 +1,96 @@ +/************************************************************************* + * Copyright (C) 2010-2014 Tavian Barnes * + * * + * This file is part of The Dimension Library. * + * * + * The Dimension Library is free software; you can redistribute it and/ * + * or modify it under the terms of the GNU Lesser General Public License * + * as published by the Free Software Foundation; either version 3 of the * + * License, or (at your option) any later version. * + * * + * The Dimension Library is distributed in the hope that it will be * + * useful, but WITHOUT ANY WARRANTY; without even the implied warranty * + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * + * Lesser General Public License for more details. * + * * + * You should have received a copy of the GNU Lesser General Public * + * License along with this program. If not, see * + * . * + *************************************************************************/ + +/** + * @file + * Pigment-mapped pigment patterns. + */ + +#include "dimension/model.h" + +/// Initialize a pigment in a pigment map. +static void +dmnsn_initialize_mapped_pigment(void *ptr) +{ + dmnsn_pigment **pigment = ptr; + dmnsn_pigment_initialize(*pigment); +} + +dmnsn_map * +dmnsn_new_pigment_map(dmnsn_pool *pool) +{ + return dmnsn_new_map(pool, sizeof(dmnsn_pigment *)); +} + +/// Pigment map type. +typedef struct dmnsn_pigment_map { + dmnsn_pigment pigment; + dmnsn_pattern *pattern; + dmnsn_map *map; + dmnsn_pigment_map_flags flags; +} dmnsn_pigment_map; + +/// pigment_map pigment callback. +static dmnsn_tcolor +dmnsn_pigment_map_pigment_fn(const dmnsn_pigment *pigment, dmnsn_vector v) +{ + const dmnsn_pigment_map *pigment_map = (const dmnsn_pigment_map *)pigment; + double n; + dmnsn_pigment *pigment1, *pigment2; + dmnsn_map_evaluate(pigment_map->map, + dmnsn_pattern_value(pigment_map->pattern, v), + &n, &pigment1, &pigment2); + dmnsn_tcolor color1 = dmnsn_pigment_evaluate(pigment1, v); + dmnsn_tcolor color2 = dmnsn_pigment_evaluate(pigment2, v); + + if (pigment_map->flags == DMNSN_PIGMENT_MAP_SRGB) { + color1.c = dmnsn_color_to_sRGB(color1.c); + color2.c = dmnsn_color_to_sRGB(color2.c); + } + dmnsn_tcolor ret = dmnsn_tcolor_gradient(color1, color2, n); + if (pigment_map->flags == DMNSN_PIGMENT_MAP_SRGB) { + ret.c = dmnsn_color_from_sRGB(ret.c); + } + + return ret; +} + +/// pigment_map initialization callback. +static void +dmnsn_pigment_map_initialize_fn(dmnsn_pigment *pigment) +{ + dmnsn_pigment_map *pigment_map = (dmnsn_pigment_map *)pigment; + dmnsn_map_apply(pigment_map->map, dmnsn_initialize_mapped_pigment); +} + +dmnsn_pigment * +dmnsn_new_pigment_map_pigment(dmnsn_pool *pool, dmnsn_pattern *pattern, dmnsn_map *map, dmnsn_pigment_map_flags flags) +{ + dmnsn_pigment_map *pigment_map = DMNSN_PALLOC(pool, dmnsn_pigment_map); + pigment_map->pattern = pattern; + pigment_map->map = map; + pigment_map->flags = flags; + + dmnsn_pigment *pigment = &pigment_map->pigment; + dmnsn_init_pigment(pigment); + pigment->pigment_fn = dmnsn_pigment_map_pigment_fn; + pigment->initialize_fn = dmnsn_pigment_map_initialize_fn; + return pigment; +} -- cgit v1.2.3