forked from KolibriOS/kolibrios
87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/*
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* Copyright 2009 Vincent Sanders <vince@simtec.co.uk>
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* Copyright 2010 Michael Drake <tlsa@netsurf-browser.org>
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*
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* This file is part of libnsfb, http://www.netsurf-browser.org/
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* Licenced under the MIT License,
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* http://www.opensource.org/licenses/mit-license.php
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*/
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#include <stdbool.h>
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#include <endian.h>
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#include <stdlib.h>
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#include <string.h>
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#include "libnsfb.h"
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#include "libnsfb_plot.h"
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#include "libnsfb_plot_util.h"
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#include "nsfb.h"
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#include "palette.h"
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#include "plot.h"
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static inline uint8_t *get_xy_loc(nsfb_t *nsfb, int x, int y)
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{
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return (uint8_t *)(nsfb->ptr + (y * nsfb->linelen) + (x));
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}
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static inline nsfb_colour_t pixel_to_colour(nsfb_t *nsfb, uint8_t pixel)
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{
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if (nsfb->palette == NULL)
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return 0;
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return nsfb->palette->data[pixel];
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}
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static uint8_t colour_to_pixel(nsfb_t *nsfb, nsfb_colour_t c)
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{
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if (nsfb->palette == NULL)
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return 0;
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return nsfb_palette_best_match_dither(nsfb->palette, c);
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}
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#define PLOT_TYPE uint8_t
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#define PLOT_LINELEN(ll) (ll)
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#include "common.c"
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static bool fill(nsfb_t *nsfb, nsfb_bbox_t *rect, nsfb_colour_t c)
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{
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int y;
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uint8_t ent;
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uint8_t *pvideo;
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if (!nsfb_plot_clip_ctx(nsfb, rect))
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return true; /* fill lies outside current clipping region */
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pvideo = get_xy_loc(nsfb, rect->x0, rect->y0);
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ent = colour_to_pixel(nsfb, c);
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for (y = rect->y0; y < rect->y1; y++) {
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memset(pvideo, ent, rect->x1 - rect->x0);
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pvideo += nsfb->linelen;
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}
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return true;
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}
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const nsfb_plotter_fns_t _nsfb_8bpp_plotters = {
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.line = line,
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.fill = fill,
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.point = point,
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.bitmap = bitmap,
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.glyph8 = glyph8,
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.glyph1 = glyph1,
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.readrect = readrect,
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};
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/*
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* Local Variables:
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* c-basic-offset:8
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* End:
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*/
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