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/canvas/canvas.c | 92 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 libdimension/canvas/canvas.c (limited to 'libdimension/canvas/canvas.c') diff --git a/libdimension/canvas/canvas.c b/libdimension/canvas/canvas.c new file mode 100644 index 0000000..350cd60 --- /dev/null +++ b/libdimension/canvas/canvas.c @@ -0,0 +1,92 @@ +/************************************************************************* + * Copyright (C) 2009-2014 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 + * Canveses. + */ + +#include "dimension/canvas.h" + +dmnsn_canvas * +dmnsn_new_canvas(dmnsn_pool *pool, size_t width, size_t height) +{ + dmnsn_canvas *canvas = DMNSN_PALLOC(pool, dmnsn_canvas); + canvas->width = width; + canvas->height = height; + canvas->optimizers = DMNSN_PALLOC_ARRAY(pool, dmnsn_canvas_optimizer *); + canvas->pixels = dmnsn_palloc(pool, sizeof(dmnsn_tcolor)*width*height); + return canvas; +} + +void +dmnsn_init_canvas_optimizer(dmnsn_canvas_optimizer *optimizer) +{ + optimizer->optimizer_fn = NULL; +} + +// Set a canvas optimizer +void +dmnsn_canvas_optimize(dmnsn_canvas *canvas, const dmnsn_canvas_optimizer *optimizer) +{ + dmnsn_array_push(canvas->optimizers, &optimizer); +} + +// Find an optimizer if it's already installed +dmnsn_canvas_optimizer * +dmnsn_canvas_find_optimizer(const dmnsn_canvas *canvas, dmnsn_canvas_optimizer_fn *optimizer_fn) +{ + DMNSN_ARRAY_FOREACH (dmnsn_canvas_optimizer **, i, canvas->optimizers) { + if ((*i)->optimizer_fn == optimizer_fn) { + return *i; + } + } + + return NULL; +} + +// Set the value of a pixel +void +dmnsn_canvas_set_pixel(dmnsn_canvas *canvas, size_t x, size_t y, + dmnsn_tcolor tcolor) +{ + dmnsn_assert(x < canvas->width && y < canvas->height, + "Canvas access out of bounds."); + dmnsn_assert(!dmnsn_tcolor_isnan(tcolor), "Pixel has NaN component."); + + // Set the pixel + canvas->pixels[y*canvas->width + x] = tcolor; + + // Call the optimizers + DMNSN_ARRAY_FOREACH (dmnsn_canvas_optimizer **, i, canvas->optimizers) { + (*i)->optimizer_fn(*i, canvas, x, y); + } +} + +// Fill a canvas with a solid color +void +dmnsn_canvas_clear(dmnsn_canvas *canvas, dmnsn_tcolor tcolor) +{ + for (size_t x = 0; x < canvas->width; ++x) { + for (size_t y = 0; y < canvas->height; ++y) { + dmnsn_canvas_set_pixel(canvas, x, y, tcolor); + } + } +} -- cgit v1.2.3