mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-28 06:49:41 +03:00
16d7252eac
(this was in the previous commit with a copy'n'paste error) svn path=/trunk/netsurf/; revision=7022
536 lines
11 KiB
C
Executable File
536 lines
11 KiB
C
Executable File
/*
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* Copyright 2008,2009 Chris Young <chris@unsatisfactorysoftware.co.uk>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "amiga/plotters.h"
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#include "amiga/gui.h"
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#include "amiga/bitmap.h"
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#include "amiga/font.h"
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#include <proto/Picasso96API.h>
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#include <proto/graphics.h>
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#include <intuition/intuition.h>
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#include <graphics/rpattr.h>
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#include <graphics/gfxmacros.h>
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#include "amiga/utf8.h"
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#include <proto/layers.h>
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#include "amiga/options.h"
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#include <graphics/blitattr.h>
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#include "utils/log.h"
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#include <math.h>
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#include <assert.h>
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#ifndef M_PI /* For some reason we don't always get this from math.h */
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#define M_PI 3.14159265358979323846
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#endif
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#ifdef NS_AMIGA_CAIRO
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#include <cairo/cairo.h>
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#include <cairo/cairo-amigaos.h>
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#endif
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#define PATT_DOT 0xAAAA
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#define PATT_DASH 0xCCCC
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#define PATT_LINE 0xFFFF
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struct plotter_table plot;
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const struct plotter_table amiplot = {
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ami_clg,
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ami_rectangle,
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ami_line,
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ami_polygon,
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ami_fill,
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ami_clip,
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ami_text,
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ami_disc,
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ami_arc,
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ami_bitmap,
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ami_bitmap_tile,
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NULL, //ami_group_start,
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NULL, //ami_group_end,
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NULL, //ami_flush, // optional
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ami_path,
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true // option_knockout
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};
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#ifdef NS_AMIGA_CAIRO
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void ami_cairo_set_colour(cairo_t *cr,colour c)
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{
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int r, g, b;
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r = c & 0xff;
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g = (c & 0xff00) >> 8;
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b = (c & 0xff0000) >> 16;
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cairo_set_source_rgba(glob.cr, r / 255.0,
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g / 255.0, b / 255.0, 1.0);
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}
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void ami_cairo_set_solid(cairo_t *cr)
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{
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double dashes = 0;
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cairo_set_dash(glob.cr, &dashes, 0, 0);
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}
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void ami_cairo_set_dotted(cairo_t *cr)
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{
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double cdashes = 1;
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cairo_set_dash(glob.cr, &cdashes, 1, 0);
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}
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void ami_cairo_set_dashed(cairo_t *cr)
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{
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double cdashes = 3;
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cairo_set_dash(glob.cr, &cdashes, 1, 0);
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}
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#endif
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bool ami_clg(colour c)
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{
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p96RectFill(currp,0,0,scrn->Width-1,scrn->Width-1,
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p96EncodeColor(RGBFB_A8B8G8R8,c));
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/*
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SetRPAttrs(currp,RPTAG_BPenColor,p96EncodeColor(RGBFB_A8B8G8R8,c),
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TAG_DONE);
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Move(currp,0,0);
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ClearScreen(currp);
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*/
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return true;
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}
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bool ami_rectangle(int x0, int y0, int width, int height,
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int line_width, colour c, bool dotted, bool dashed)
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{
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#ifndef NS_AMIGA_CAIRO_ALL
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currp->PenWidth = line_width;
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currp->PenHeight = line_width;
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currp->LinePtrn = PATT_LINE;
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if(dotted) currp->LinePtrn = PATT_DOT;
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if(dashed) currp->LinePtrn = PATT_DASH;
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SetRPAttrs(currp,RPTAG_APenColor,p96EncodeColor(RGBFB_A8B8G8R8,c),
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TAG_DONE);
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Move(currp,x0,y0);
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Draw(currp,x0+width,y0);
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Draw(currp,x0+width,y0+height);
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Draw(currp,x0,y0+height);
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Draw(currp,x0,y0);
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currp->PenWidth = 1;
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currp->PenHeight = 1;
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currp->LinePtrn = PATT_LINE;
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#else
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ami_cairo_set_colour(glob.cr,c);
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if (dotted) ami_cairo_set_dotted(glob.cr);
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else if (dashed) ami_cairo_set_dashed(glob.cr);
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else ami_cairo_set_solid(glob.cr);
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if (line_width == 0)
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line_width = 1;
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cairo_set_line_width(glob.cr, line_width);
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cairo_rectangle(glob.cr, x0, y0, width, height);
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cairo_stroke(glob.cr);
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#endif
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return true;
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}
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bool ami_line(int x0, int y0, int x1, int y1, int width,
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colour c, bool dotted, bool dashed)
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{
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#ifndef NS_AMIGA_CAIRO_ALL
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currp->PenWidth = width;
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currp->PenHeight = width;
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currp->LinePtrn = PATT_LINE;
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if(dotted) currp->LinePtrn = PATT_DOT;
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if(dashed) currp->LinePtrn = PATT_DASH;
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SetRPAttrs(currp,RPTAG_APenColor,p96EncodeColor(RGBFB_A8B8G8R8,c),
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TAG_DONE);
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Move(currp,x0,y0);
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Draw(currp,x1,y1);
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currp->PenWidth = 1;
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currp->PenHeight = 1;
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currp->LinePtrn = PATT_LINE;
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#else
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ami_cairo_set_colour(glob.cr,c);
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if (dotted) ami_cairo_set_dotted(glob.cr);
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else if (dashed) ami_cairo_set_dashed(glob.cr);
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else ami_cairo_set_solid(glob.cr);
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if (width == 0)
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width = 1;
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cairo_set_line_width(glob.cr, width);
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cairo_move_to(glob.cr, x0 + 0.5, y0 + 0.5);
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cairo_line_to(glob.cr, x1 + 0.5, y1 + 0.5);
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cairo_stroke(glob.cr);
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#endif
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return true;
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}
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bool ami_polygon(const int *p, unsigned int n, colour fill)
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{
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int k;
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#ifndef NS_AMIGA_CAIRO
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ULONG cx,cy;
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//DebugPrintF("poly\n");
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SetRPAttrs(currp,RPTAG_APenColor,p96EncodeColor(RGBFB_A8B8G8R8,fill),
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RPTAG_OPenColor,p96EncodeColor(RGBFB_A8B8G8R8,fill),
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// RPTAG_OPenColor,0xffffffff,
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TAG_DONE);
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AreaMove(currp,p[0],p[1]);
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for(k=1;k<n;k++)
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{
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AreaDraw(currp,p[k*2],p[(k*2)+1]);
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}
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AreaEnd(currp);
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BNDRYOFF(currp);
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#else
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ami_cairo_set_colour(glob.cr,fill);
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ami_cairo_set_solid(glob.cr);
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cairo_set_line_width(glob.cr, 0);
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cairo_move_to(glob.cr, p[0], p[1]);
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for (k = 1; k != n; k++) {
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cairo_line_to(glob.cr, p[k * 2], p[k * 2 + 1]);
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}
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cairo_fill(glob.cr);
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cairo_stroke(glob.cr);
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#endif
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return true;
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}
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bool ami_fill(int x0, int y0, int x1, int y1, colour c)
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{
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#ifndef NS_AMIGA_CAIRO_ALL
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p96RectFill(currp,x0,y0,x1-1,y1-1,
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p96EncodeColor(RGBFB_A8B8G8R8,c));
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#else
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ami_cairo_set_colour(glob.cr,c);
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ami_cairo_set_solid(glob.cr);
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cairo_set_line_width(glob.cr, 0);
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cairo_rectangle(glob.cr, x0, y0, x1 - x0, y1 - y0);
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cairo_fill(glob.cr);
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cairo_stroke(glob.cr);
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#endif
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return true;
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}
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bool ami_clip(int x0, int y0, int x1, int y1)
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{
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struct Region *reg = NULL;
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if(currp->Layer)
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{
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reg = InstallClipRegion(currp->Layer,NULL);
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if(!reg)
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{
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reg = NewRegion();
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}
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else
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{
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ClearRectRegion(reg,&glob.rect);
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}
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glob.rect.MinX = x0;
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glob.rect.MinY = y0;
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glob.rect.MaxX = x1-1;
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glob.rect.MaxY = y1-1;
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OrRectRegion(reg,&glob.rect);
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reg = InstallClipRegion(currp->Layer,reg);
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if(reg) DisposeRegion(reg);
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}
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#ifdef NS_AMIGA_CAIRO_ALL
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cairo_reset_clip(glob.cr);
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cairo_rectangle(glob.cr, x0, y0, x1 - x0, y1 - y0);
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cairo_clip(glob.cr);
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#endif
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return true;
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}
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bool ami_text(int x, int y, const struct css_style *style,
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const char *text, size_t length, colour bg, colour c)
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{
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ami_unicode_text(currp,text,length,style,x,y,c);
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return true;
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}
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bool ami_disc(int x, int y, int radius, colour c, bool filled)
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{
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#ifndef NS_AMIGA_CAIRO_ALL
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SetRPAttrs(currp,RPTAG_APenColor,p96EncodeColor(RGBFB_A8B8G8R8,c),
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TAG_DONE);
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if(filled)
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{
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AreaCircle(currp,x,y,radius);
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AreaEnd(currp);
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}
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else
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{
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DrawEllipse(currp,x,y,radius,radius); // NB: does not support fill, need to use AreaCircle for that
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}
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#else
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ami_cairo_set_colour(glob.cr,c);
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ami_cairo_set_solid(glob.cr);
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if (filled)
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cairo_set_line_width(glob.cr, 0);
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else
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cairo_set_line_width(glob.cr, 1);
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cairo_arc(glob.cr, x, y, radius, 0, M_PI * 2);
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if (filled)
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cairo_fill(glob.cr);
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cairo_stroke(glob.cr);
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#endif
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return true;
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}
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bool ami_arc(int x, int y, int radius, int angle1, int angle2,
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colour c)
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{
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#ifdef NS_AMIGA_CAIRO
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ami_cairo_set_colour(glob.cr,c);
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ami_cairo_set_solid(glob.cr);
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cairo_set_line_width(glob.cr, 1);
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cairo_arc(glob.cr, x, y, radius,
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(angle1 + 90) * (M_PI / 180),
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(angle2 + 90) * (M_PI / 180));
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cairo_stroke(glob.cr);
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#else
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/* http://www.crbond.com/primitives.htm
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CommonFuncsPPC.lha */
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//DebugPrintF("arc\n");
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SetRPAttrs(currp,RPTAG_APenColor,p96EncodeColor(RGBFB_A8B8G8R8,c),
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TAG_DONE);
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// DrawArc(currp,x,y,(float)angle1,(float)angle2,radius);
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#endif
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return true;
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}
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bool ami_bitmap(int x, int y, int width, int height,
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struct bitmap *bitmap, colour bg, struct content *content)
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{
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struct BitMap *tbm;
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if(!width || !height) return true;
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tbm = ami_getcachenativebm(bitmap,width,height,currp->BitMap);
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if(!tbm) return true;
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BltBitMapTags(BLITA_Width,width,
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BLITA_Height,height,
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BLITA_Source,tbm,
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BLITA_Dest,currp,
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BLITA_DestX,x,
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BLITA_DestY,y,
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BLITA_SrcType,BLITT_BITMAP,
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BLITA_DestType,BLITT_RASTPORT,
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BLITA_UseSrcAlpha,!bitmap->opaque,
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TAG_DONE);
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if(tbm != bitmap->nativebm)
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{
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p96FreeBitMap(tbm);
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}
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return true;
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}
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bool ami_bitmap_tile(int x, int y, int width, int height,
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struct bitmap *bitmap, colour bg,
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bool repeat_x, bool repeat_y, struct content *content)
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{
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int xf,yf;
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struct BitMap *tbm = NULL;
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if(!(repeat_x || repeat_y))
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return ami_bitmap(x, y, width, height, bitmap, bg, content);
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tbm = ami_getcachenativebm(bitmap,width,height,currp->BitMap);
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if(!tbm) return true;
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/* get left most tile position */
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if (repeat_x)
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for (; x > glob.rect.MinX; x -= width)
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;
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/* get top most tile position */
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if (repeat_y)
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for (; y > glob.rect.MinY; y -= height)
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;
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/* tile down and across to extents */
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for (xf = x; xf < glob.rect.MaxX; xf += width) {
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for (yf = y; yf < glob.rect.MaxY; yf += height) {
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assert(tbm);
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BltBitMapTags(BLITA_Width,width,
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BLITA_Height,height,
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BLITA_Source,tbm,
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BLITA_Dest,currp,
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BLITA_DestX,xf,
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BLITA_DestY,yf,
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BLITA_SrcType,BLITT_BITMAP,
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BLITA_DestType,BLITT_RASTPORT,
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BLITA_UseSrcAlpha,!bitmap->opaque,
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TAG_DONE);
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if (!repeat_y)
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break;
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}
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if (!repeat_x)
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break;
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}
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if(tbm != bitmap->nativebm)
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{
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p96FreeBitMap(tbm);
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}
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return true;
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}
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bool ami_group_start(const char *name)
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{
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/** optional */
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return false;
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}
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bool ami_group_end(void)
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{
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/** optional */
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return false;
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}
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bool ami_flush(void)
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{
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//DebugPrintF("flush\n");
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return true;
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}
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bool ami_path(const float *p, unsigned int n, colour fill, float width,
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colour c, const float transform[6])
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{
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/* For SVG only, because it needs Bezier curves we are going to cheat
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and insist on Cairo */
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#ifdef NS_AMIGA_CAIRO
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unsigned int i;
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cairo_matrix_t old_ctm, n_ctm;
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if (n == 0)
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return true;
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if (p[0] != PLOTTER_PATH_MOVE) {
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LOG(("Path does not start with move"));
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return false;
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}
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/* Save CTM */
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cairo_get_matrix(glob.cr, &old_ctm);
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/* Set up line style and width */
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cairo_set_line_width(glob.cr, 1);
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ami_cairo_set_solid(glob.cr);
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/* Load new CTM */
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n_ctm.xx = transform[0];
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n_ctm.yx = transform[1];
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n_ctm.xy = transform[2];
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n_ctm.yy = transform[3];
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n_ctm.x0 = transform[4];
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n_ctm.y0 = transform[5];
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cairo_set_matrix(glob.cr, &n_ctm);
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/* Construct path */
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for (i = 0; i < n; ) {
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if (p[i] == PLOTTER_PATH_MOVE) {
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cairo_move_to(glob.cr, p[i+1], p[i+2]);
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i += 3;
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} else if (p[i] == PLOTTER_PATH_CLOSE) {
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cairo_close_path(glob.cr);
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i++;
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} else if (p[i] == PLOTTER_PATH_LINE) {
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cairo_line_to(glob.cr, p[i+1], p[i+2]);
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i += 3;
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} else if (p[i] == PLOTTER_PATH_BEZIER) {
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cairo_curve_to(glob.cr, p[i+1], p[i+2],
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p[i+3], p[i+4],
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p[i+5], p[i+6]);
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i += 7;
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} else {
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LOG(("bad path command %f", p[i]));
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/* Reset matrix for safety */
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cairo_set_matrix(glob.cr, &old_ctm);
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return false;
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}
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}
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/* Restore original CTM */
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cairo_set_matrix(glob.cr, &old_ctm);
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/* Now draw path */
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if (fill != TRANSPARENT) {
|
|
ami_cairo_set_colour(glob.cr,fill);
|
|
|
|
if (c != TRANSPARENT) {
|
|
/* Fill & Stroke */
|
|
cairo_fill_preserve(glob.cr);
|
|
ami_cairo_set_colour(glob.cr,c);
|
|
cairo_stroke(glob.cr);
|
|
} else {
|
|
/* Fill only */
|
|
cairo_fill(glob.cr);
|
|
}
|
|
} else if (c != TRANSPARENT) {
|
|
/* Stroke only */
|
|
ami_cairo_set_colour(glob.cr,c);
|
|
cairo_stroke(glob.cr);
|
|
}
|
|
#endif
|
|
return true;
|
|
}
|