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/*************************************************************************
* Copyright (C) 2010-2014 Tavian Barnes <tavianator@tavianator.com> *
* *
* 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 *
* <http://www.gnu.org/licenses/>. *
*************************************************************************/
/**
* @file
* 16-bit RGBA canvas optimizer.
*/
#include "internal/rgba.h"
#include <stdint.h>
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);
}
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