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/rgba.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 libdimension/canvas/rgba.c (limited to 'libdimension/canvas/rgba.c') diff --git a/libdimension/canvas/rgba.c b/libdimension/canvas/rgba.c new file mode 100644 index 0000000..4abf457 --- /dev/null +++ b/libdimension/canvas/rgba.c @@ -0,0 +1,95 @@ +/************************************************************************* + * 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 + * 16-bit RGBA canvas optimizer. + */ + +#include "internal/rgba.h" +#include + +void +dmnsn_rgba8_optimize_canvas(dmnsn_pool *pool, dmnsn_canvas *canvas) +{ + if (dmnsn_canvas_find_optimizer(canvas, dmnsn_rgba8_optimizer_fn)) { + return; + } + + size_t ndata = 4*canvas->width*canvas->height; + dmnsn_rgba8_optimizer *rgba8 = dmnsn_palloc(pool, sizeof(dmnsn_rgba8_optimizer) + ndata*sizeof(uint8_t)); + + dmnsn_canvas_optimizer *optimizer = &rgba8->optimizer; + dmnsn_init_canvas_optimizer(optimizer); + optimizer->optimizer_fn = dmnsn_rgba8_optimizer_fn; + + dmnsn_canvas_optimize(canvas, optimizer); +} + +void +dmnsn_rgba16_optimize_canvas(dmnsn_pool *pool, dmnsn_canvas *canvas) +{ + if (dmnsn_canvas_find_optimizer(canvas, dmnsn_rgba16_optimizer_fn)) { + return; + } + + size_t ndata = 4*canvas->width*canvas->height; + dmnsn_rgba16_optimizer *rgba16 = dmnsn_palloc(pool, sizeof(dmnsn_rgba16_optimizer) + ndata*sizeof(uint16_t)); + + dmnsn_canvas_optimizer *optimizer = &rgba16->optimizer; + dmnsn_init_canvas_optimizer(optimizer); + optimizer->optimizer_fn = dmnsn_rgba16_optimizer_fn; + + dmnsn_canvas_optimize(canvas, optimizer); +} + +void +dmnsn_rgba8_optimizer_fn(dmnsn_canvas_optimizer *optimizer, const dmnsn_canvas *canvas, size_t x, size_t y) +{ + dmnsn_rgba8_optimizer *rgba8 = (dmnsn_rgba8_optimizer *)optimizer; + + uint8_t *pixel = rgba8->data + 4*(y*canvas->width + x); + dmnsn_tcolor tcolor = dmnsn_canvas_get_pixel(canvas, x, y); + tcolor = dmnsn_tcolor_remove_filter(tcolor); + tcolor.c = dmnsn_color_to_sRGB(tcolor.c); + tcolor = dmnsn_tcolor_clamp(tcolor); + + pixel[0] = lround(tcolor.c.R*UINT8_MAX); + pixel[1] = lround(tcolor.c.G*UINT8_MAX); + pixel[2] = lround(tcolor.c.B*UINT8_MAX); + pixel[3] = lround(tcolor.T*UINT8_MAX); +} + +void +dmnsn_rgba16_optimizer_fn(dmnsn_canvas_optimizer *optimizer, const dmnsn_canvas *canvas, size_t x, size_t y) +{ + dmnsn_rgba16_optimizer *rgba16 = (dmnsn_rgba16_optimizer *)optimizer; + + uint16_t *pixel = rgba16->data + 4*(y*canvas->width + x); + dmnsn_tcolor tcolor = dmnsn_canvas_get_pixel(canvas, x, y); + tcolor = dmnsn_tcolor_remove_filter(tcolor); + tcolor.c = dmnsn_color_to_sRGB(tcolor.c); + tcolor = dmnsn_tcolor_clamp(tcolor); + + pixel[0] = lround(tcolor.c.R*UINT16_MAX); + pixel[1] = lround(tcolor.c.G*UINT16_MAX); + pixel[2] = lround(tcolor.c.B*UINT16_MAX); + pixel[3] = lround(tcolor.T*UINT16_MAX); +} -- cgit v1.2.3