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1193 lines
30 KiB
1193 lines
30 KiB
/*
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* Copyright 2008-09, 2012-13 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/os3support.h"
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#include <proto/exec.h>
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#include <proto/intuition.h>
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#include <proto/layers.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 <graphics/gfxbase.h>
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#ifdef __amigaos4__
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#include <graphics/blitattr.h>
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#include <graphics/composite.h>
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#endif
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#include <math.h>
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#include <assert.h>
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#include <stdlib.h>
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#include "utils/nsoption.h"
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#include "utils/utils.h"
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#include "utils/log.h"
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#include "netsurf/css.h"
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#include "netsurf/mouse.h"
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#include "netsurf/window.h"
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#include "amiga/plotters.h"
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#include "amiga/bitmap.h"
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#include "amiga/font.h"
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#include "amiga/gui.h"
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#include "amiga/memory.h"
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#include "amiga/misc.h"
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#include "amiga/rtg.h"
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#include "amiga/utf8.h"
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HOOKF(void, ami_bitmap_tile_hook, struct RastPort *, rp, struct BackFillMessage *);
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struct bfbitmap {
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struct BitMap *bm;
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ULONG width;
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ULONG height;
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int offsetx;
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int offsety;
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APTR mask;
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bool palette_mapped;
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};
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struct ami_plot_pen {
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struct MinNode node;
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ULONG pen;
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};
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struct bez_point {
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float x;
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float y;
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};
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struct gui_globals {
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struct BitMap *bm;
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struct RastPort *rp;
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struct Layer_Info *layerinfo;
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APTR areabuf;
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APTR tmprasbuf;
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struct Rectangle rect;
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struct MinList *shared_pens;
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bool managed_pen_list;
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bool palette_mapped;
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ULONG apen;
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ULONG open;
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LONG apen_num;
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LONG open_num;
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int width; /* size of bm and */
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int height; /* associated memory */
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};
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static int init_layers_count = 0;
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static APTR pool_pens = NULL;
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static bool palette_mapped = true; /* palette-mapped state for the screen */
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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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#define PATT_DOT 0xAAAA
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#define PATT_DASH 0xCCCC
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#define PATT_LINE 0xFFFF
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/* This defines the size of the list for Area* functions.
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25000 = 5000 vectors
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*/
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#define AREA_SIZE 25000
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struct gui_globals *ami_plot_ra_alloc(ULONG width, ULONG height, bool force32bit, bool alloc_pen_list)
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{
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/* init shared bitmaps */
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int depth = 32;
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struct BitMap *friend = NULL;
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struct Screen *scrn = ami_gui_get_screen();
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struct gui_globals *gg = malloc(sizeof(struct gui_globals));
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if(force32bit == false) depth = GetBitMapAttr(scrn->RastPort.BitMap, BMA_DEPTH);
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NSLOG(netsurf, INFO, "Screen depth = %d", depth);
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#ifdef __amigaos4__
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if(depth < 16) {
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gg->palette_mapped = true;
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if(force32bit == false) palette_mapped = true;
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bitmap_set_format(&(bitmap_fmt_t) {
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.layout = BITMAP_LAYOUT_ARGB8888,
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.pma = true,
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});
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NSLOG(netsurf, INFO, "Set bitmap format to 0xAARRGGBB (native endian) (PMA)");
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} else {
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gg->palette_mapped = false;
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bitmap_set_format(&(bitmap_fmt_t) {
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.layout = BITMAP_LAYOUT_ARGB8888,
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.pma = false,
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});
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NSLOG(netsurf, INFO, "Set bitmap format to 0xAARRGGBB (native endian)");
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}
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#else
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bitmap_set_format(&(bitmap_fmt_t) {
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.layout = BITMAP_LAYOUT_ARGB8888,
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.pma = true,
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});
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NSLOG(netsurf, INFO, "Set bitmap format to 0xAARRGGBB (native endian) (PMA)");
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/* Friend BitMaps are weird.
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* For OS4, we shouldn't use a friend BitMap here (see below).
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* For OS3 AGA, we get no display blitted if we use a friend BitMap,
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* however on RTG it seems to be a benefit.
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*/
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if(nsoption_bool(friend_bitmap) == true) {
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friend = scrn->RastPort.BitMap;
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} else {
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/* Force friend BitMaps on for obvious RTG screens under OS3.
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* If we get a bit smarter about this we can lose the user option. */
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if((depth > 8) && (force32bit == false)) friend = scrn->RastPort.BitMap;
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}
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if(depth < 16) {
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gg->palette_mapped = true;
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if(force32bit == false) palette_mapped = true;
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} else {
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gg->palette_mapped = false;
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}
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#endif
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/* Probably need to fix this next line */
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if(gg->palette_mapped == true) nsoption_set_bool(font_antialiasing, false);
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if(!width) width = nsoption_int(redraw_tile_size_x);
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if(!height) height = nsoption_int(redraw_tile_size_y);
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gg->width = width;
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gg->height = height;
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gg->layerinfo = NewLayerInfo();
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gg->areabuf = malloc(AREA_SIZE);
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/* OS3/AGA requires this to be in chip mem. RTG would probably rather it wasn't. */
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gg->tmprasbuf = ami_memory_chip_alloc(width * height);
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if(gg->palette_mapped == true) {
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gg->bm = AllocBitMap(width, height, depth, 0, friend);
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} else {
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#ifdef __amigaos4__
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/* Screen depth is reported as 24 even when it's actually 32-bit.
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* We get freezes and other problems on OS4 if we befriend at any
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* other depths, hence this check.
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* \todo use friend BitMaps but avoid CompositeTags() at non-32-bit
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* as that seems to be the cause of the problems.
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*/
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if((depth >= 24) && (force32bit == false)) friend = scrn->RastPort.BitMap;
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#endif
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gg->bm = ami_rtg_allocbitmap(width, height, 32, 0, friend, RGBFB_A8R8G8B8);
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}
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if(!gg->bm) amiga_warn_user("NoMemory","");
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gg->rp = malloc(sizeof(struct RastPort));
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if(!gg->rp) amiga_warn_user("NoMemory","");
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InitRastPort(gg->rp);
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gg->rp->BitMap = gg->bm;
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SetDrMd(gg->rp,BGBACKFILL);
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gg->rp->Layer = CreateUpfrontLayer(gg->layerinfo,gg->rp->BitMap,0,0,
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width-1, height-1, LAYERSIMPLE, NULL);
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InstallLayerHook(gg->rp->Layer,LAYERS_NOBACKFILL);
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gg->rp->AreaInfo = malloc(sizeof(struct AreaInfo));
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if((!gg->areabuf) || (!gg->rp->AreaInfo)) amiga_warn_user("NoMemory","");
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InitArea(gg->rp->AreaInfo, gg->areabuf, AREA_SIZE/5);
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gg->rp->TmpRas = malloc(sizeof(struct TmpRas));
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if((!gg->tmprasbuf) || (!gg->rp->TmpRas)) amiga_warn_user("NoMemory","");
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InitTmpRas(gg->rp->TmpRas, gg->tmprasbuf, width*height);
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gg->shared_pens = NULL;
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gg->managed_pen_list = false;
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if(gg->palette_mapped == true) {
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if(pool_pens == NULL) {
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pool_pens = ami_memory_itempool_create(sizeof(struct ami_plot_pen));
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}
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if(alloc_pen_list == true) {
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gg->shared_pens = ami_AllocMinList();
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gg->managed_pen_list = true;
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}
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}
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gg->apen = 0x00000000;
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gg->open = 0x00000000;
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gg->apen_num = -1;
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gg->open_num = -1;
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init_layers_count++;
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NSLOG(netsurf, INFO, "Layer initialised (total: %d)",
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init_layers_count);
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return gg;
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}
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void ami_plot_ra_free(struct gui_globals *gg)
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{
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init_layers_count--;
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if(init_layers_count < 0) return;
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if((init_layers_count == 0) && (pool_pens != NULL)) {
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ami_memory_itempool_delete(pool_pens);
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pool_pens = NULL;
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}
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if(gg->rp) {
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if(gg->rp->Layer != NULL) DeleteLayer(0, gg->rp->Layer);
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free(gg->rp->TmpRas);
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free(gg->rp->AreaInfo);
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free(gg->rp);
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}
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ami_memory_chip_free(gg->tmprasbuf);
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free(gg->areabuf);
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DisposeLayerInfo(gg->layerinfo);
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if(gg->bm) ami_rtg_freebitmap(gg->bm);
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if(gg->managed_pen_list == true) {
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ami_plot_release_pens(gg->shared_pens);
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free(gg->shared_pens);
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gg->shared_pens = NULL;
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}
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free(gg);
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}
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struct RastPort *ami_plot_ra_get_rastport(struct gui_globals *gg)
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{
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return gg->rp;
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}
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struct BitMap *ami_plot_ra_get_bitmap(struct gui_globals *gg)
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{
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return gg->bm;
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}
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void ami_plot_ra_get_size(struct gui_globals *gg, int *width, int *height)
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{
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*width = gg->width;
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*height = gg->height;
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}
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void ami_plot_ra_set_pen_list(struct gui_globals *gg, struct MinList *pen_list)
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{
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gg->shared_pens = pen_list;
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}
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void ami_clearclipreg(struct gui_globals *gg)
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{
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struct Region *reg = NULL;
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struct Screen *scrn = ami_gui_get_screen();
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reg = InstallClipRegion(gg->rp->Layer,NULL);
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if(reg) DisposeRegion(reg);
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gg->rect.MinX = 0;
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gg->rect.MinY = 0;
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gg->rect.MaxX = scrn->Width-1;
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gg->rect.MaxY = scrn->Height-1;
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gg->apen = 0x00000000;
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gg->open = 0x00000000;
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gg->apen_num = -1;
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gg->open_num = -1;
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}
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static ULONG ami_plot_obtain_pen(struct MinList *shared_pens, ULONG colr)
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{
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struct ami_plot_pen *node;
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struct Screen *scrn = ami_gui_get_screen();
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LONG pen = ObtainBestPenA(scrn->ViewPort.ColorMap,
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(colr & 0x000000ff) << 24,
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(colr & 0x0000ff00) << 16,
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(colr & 0x00ff0000) << 8,
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NULL);
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if(pen == -1) NSLOG(netsurf, INFO,
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"WARNING: Cannot allocate pen for ABGR:%lx", colr);
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if((shared_pens != NULL) && (pool_pens != NULL)) {
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if((node = (struct ami_plot_pen *)ami_memory_itempool_alloc(pool_pens, sizeof(struct ami_plot_pen)))) {
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node->pen = pen;
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AddTail((struct List *)shared_pens, (struct Node *)node);
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}
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} else {
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/* Immediately release the pen if we can't keep track of it. */
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ReleasePen(scrn->ViewPort.ColorMap, pen);
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}
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return pen;
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}
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void ami_plot_release_pens(struct MinList *shared_pens)
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{
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struct Screen *scrn = ami_gui_get_screen();
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struct ami_plot_pen *node;
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struct ami_plot_pen *nnode;
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if(shared_pens == NULL) return;
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if(IsMinListEmpty(shared_pens)) return;
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node = (struct ami_plot_pen *)GetHead((struct List *)shared_pens);
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do {
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nnode = (struct ami_plot_pen *)GetSucc((struct Node *)node);
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ReleasePen(scrn->ViewPort.ColorMap, node->pen);
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Remove((struct Node *)node);
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ami_memory_itempool_free(pool_pens, node, sizeof(struct ami_plot_pen));
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} while((node = nnode));
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}
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static void ami_plot_setapen(struct gui_globals *glob, struct RastPort *rp, ULONG colr)
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{
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if(glob->apen == colr) return;
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#ifdef __amigaos4__
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if(glob->palette_mapped == false) {
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SetRPAttrs(rp, RPTAG_APenColor,
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ns_color_to_nscss(colr),
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TAG_DONE);
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} else
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#endif
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{
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LONG pen = ami_plot_obtain_pen(glob->shared_pens, colr);
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if((pen != -1) && (pen != glob->apen_num)) SetAPen(rp, pen);
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}
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glob->apen = colr;
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}
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static void ami_plot_setopen(struct gui_globals *glob, struct RastPort *rp, ULONG colr)
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{
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if(glob->open == colr) return;
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#ifdef __amigaos4__
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if(glob->palette_mapped == false) {
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SetRPAttrs(rp, RPTAG_OPenColor,
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ns_color_to_nscss(colr),
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TAG_DONE);
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} else
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#endif
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{
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LONG pen = ami_plot_obtain_pen(glob->shared_pens, colr);
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if((pen != -1) && (pen != glob->open_num)) SetOPen(rp, pen);
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}
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glob->open = colr;
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}
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void ami_plot_clear_bbox(struct RastPort *rp, struct IBox *bbox)
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{
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if((bbox == NULL) || (rp == NULL)) return;
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EraseRect(rp, bbox->Left, bbox->Top,
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bbox->Width + bbox->Left, bbox->Height + bbox->Top);
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}
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static void ami_arc_gfxlib(struct RastPort *rp, int x, int y, int radius, int angle1, int angle2)
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{
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float angle1_r = (float)(angle1) * (M_PI / 180.0);
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float angle2_r = (float)(angle2) * (M_PI / 180.0);
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float angle, b, c;
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float step = 0.1; //(angle2_r - angle1_r) / ((angle2_r - angle1_r) * (float)radius);
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int x0, y0, x1, y1;
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x0 = x;
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y0 = y;
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b = angle1_r;
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c = angle2_r;
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x1 = (int)(cos(b) * (float)radius);
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y1 = (int)(sin(b) * (float)radius);
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Move(rp, x0 + x1, y0 - y1);
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for(angle = (b + step); angle <= c; angle += step) {
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x1 = (int)(cos(angle) * (float)radius);
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y1 = (int)(sin(angle) * (float)radius);
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Draw(rp, x0 + x1, y0 - y1);
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}
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}
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/**
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*/
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static nserror
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ami_bitmap(struct gui_globals *glob, int x, int y, int width, int height, struct bitmap *bitmap)
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{
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NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_bitmap()");
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struct Screen *scrn = ami_gui_get_screen();
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struct BitMap *tbm;
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if (!width || !height) {
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return NSERROR_OK;
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}
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if (((x + width) < glob->rect.MinX) ||
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((y + height) < glob->rect.MinY) ||
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(x > glob->rect.MaxX) ||
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(y > glob->rect.MaxY)) {
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return NSERROR_OK;
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}
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tbm = ami_bitmap_get_native(bitmap, width, height, glob->palette_mapped, glob->rp->BitMap);
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if (!tbm) {
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return NSERROR_OK;
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}
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NSLOG(plot, DEEPDEBUG, "[ami_plotter] ami_bitmap() got native bitmap");
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#ifdef __amigaos4__
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if (__builtin_expect((GfxBase->LibNode.lib_Version >= 53) &&
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(glob->palette_mapped == false), 1)) {
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uint32 comptype = COMPOSITE_Src_Over_Dest;
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uint32 compflags = COMPFLAG_IgnoreDestAlpha;
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if(amiga_bitmap_get_opaque(bitmap)) {
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compflags |= COMPFLAG_SrcAlphaOverride;
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comptype = COMPOSITE_Src;
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}
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CompositeTags(comptype,tbm,glob->rp->BitMap,
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COMPTAG_Flags, compflags,
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COMPTAG_DestX,glob->rect.MinX,
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COMPTAG_DestY,glob->rect.MinY,
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COMPTAG_DestWidth,glob->rect.MaxX - glob->rect.MinX + 1,
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COMPTAG_DestHeight,glob->rect.MaxY - glob->rect.MinY + 1,
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COMPTAG_SrcWidth,width,
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COMPTAG_SrcHeight,height,
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COMPTAG_OffsetX,x,
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COMPTAG_OffsetY,y,
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COMPTAG_FriendBitMap, scrn->RastPort.BitMap,
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TAG_DONE);
|
|
} else
|
|
#endif
|
|
{
|
|
ULONG tag, tag_data, minterm = 0xc0;
|
|
|
|
if (glob->palette_mapped == false) {
|
|
tag = BLITA_UseSrcAlpha;
|
|
tag_data = !amiga_bitmap_get_opaque(bitmap);
|
|
minterm = 0xc0;
|
|
} else {
|
|
tag = BLITA_MaskPlane;
|
|
if ((tag_data = (ULONG)ami_bitmap_get_mask(bitmap, width, height, tbm)))
|
|
minterm = MINTERM_SRCMASK;
|
|
}
|
|
#ifdef __amigaos4__
|
|
BltBitMapTags(BLITA_Width,width,
|
|
BLITA_Height,height,
|
|
BLITA_Source,tbm,
|
|
BLITA_Dest,glob->rp,
|
|
BLITA_DestX,x,
|
|
BLITA_DestY,y,
|
|
BLITA_SrcType,BLITT_BITMAP,
|
|
BLITA_DestType,BLITT_RASTPORT,
|
|
BLITA_Minterm, minterm,
|
|
tag, tag_data,
|
|
TAG_DONE);
|
|
#else
|
|
if (tag_data) {
|
|
BltMaskBitMapRastPort(tbm, 0, 0, glob->rp, x, y, width, height, minterm, tag_data);
|
|
} else {
|
|
BltBitMapRastPort(tbm, 0, 0, glob->rp, x, y, width, height, 0xc0);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if ((ami_bitmap_is_nativebm(bitmap, tbm) == false)) {
|
|
ami_rtg_freebitmap(tbm);
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
HOOKF(void, ami_bitmap_tile_hook, struct RastPort *, rp, struct BackFillMessage *)
|
|
{
|
|
int xf,yf;
|
|
struct bfbitmap *bfbm = (struct bfbitmap *)hook->h_Data;
|
|
struct Screen *scrn = ami_gui_get_screen();
|
|
|
|
/* tile down and across to extents (msg->Bounds.MinX)*/
|
|
for (xf = -bfbm->offsetx; xf < msg->Bounds.MaxX; xf += bfbm->width) {
|
|
for (yf = -bfbm->offsety; yf < msg->Bounds.MaxY; yf += bfbm->height) {
|
|
#ifdef __amigaos4__
|
|
if(__builtin_expect((GfxBase->LibNode.lib_Version >= 53) &&
|
|
(bfbm->palette_mapped == false), 1)) {
|
|
CompositeTags(COMPOSITE_Src_Over_Dest, bfbm->bm, rp->BitMap,
|
|
COMPTAG_Flags, COMPFLAG_IgnoreDestAlpha,
|
|
COMPTAG_DestX, msg->Bounds.MinX,
|
|
COMPTAG_DestY, msg->Bounds.MinY,
|
|
COMPTAG_DestWidth, msg->Bounds.MaxX - msg->Bounds.MinX + 1,
|
|
COMPTAG_DestHeight, msg->Bounds.MaxY - msg->Bounds.MinY + 1,
|
|
COMPTAG_SrcWidth, bfbm->width,
|
|
COMPTAG_SrcHeight, bfbm->height,
|
|
COMPTAG_OffsetX, xf,
|
|
COMPTAG_OffsetY, yf,
|
|
COMPTAG_FriendBitMap, scrn->RastPort.BitMap,
|
|
TAG_DONE);
|
|
} else
|
|
#endif
|
|
{
|
|
ULONG tag, tag_data, minterm = 0xc0;
|
|
|
|
if(bfbm->palette_mapped == false) {
|
|
tag = BLITA_UseSrcAlpha;
|
|
tag_data = TRUE;
|
|
minterm = 0xc0;
|
|
} else {
|
|
tag = BLITA_MaskPlane;
|
|
if((tag_data = (ULONG)bfbm->mask))
|
|
minterm = MINTERM_SRCMASK;
|
|
}
|
|
#ifdef __amigaos4__
|
|
BltBitMapTags(BLITA_Width, bfbm->width,
|
|
BLITA_Height, bfbm->height,
|
|
BLITA_Source, bfbm->bm,
|
|
BLITA_Dest, rp,
|
|
BLITA_DestX, xf,
|
|
BLITA_DestY, yf,
|
|
BLITA_SrcType, BLITT_BITMAP,
|
|
BLITA_DestType, BLITT_RASTPORT,
|
|
BLITA_Minterm, minterm,
|
|
tag, tag_data,
|
|
TAG_DONE);
|
|
#else
|
|
if(tag_data) {
|
|
BltMaskBitMapRastPort(bfbm->bm, 0, 0, rp, xf, yf,
|
|
bfbm->width, bfbm->height, minterm, tag_data);
|
|
} else {
|
|
BltBitMapRastPort(bfbm->bm, 0, 0, rp, xf, yf,
|
|
bfbm->width, bfbm->height, minterm);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void ami_bezier(struct bez_point *restrict a, struct bez_point *restrict b,
|
|
struct bez_point *restrict c, struct bez_point *restrict d,
|
|
float t, struct bez_point *restrict p) {
|
|
p->x = pow((1 - t), 3) * a->x + 3 * t * pow((1 -t), 2) * b->x + 3 * (1-t) * pow(t, 2)* c->x + pow (t, 3)* d->x;
|
|
p->y = pow((1 - t), 3) * a->y + 3 * t * pow((1 -t), 2) * b->y + 3 * (1-t) * pow(t, 2)* c->y + pow (t, 3)* d->y;
|
|
}
|
|
|
|
|
|
bool ami_plot_screen_is_palettemapped(void)
|
|
{
|
|
/* This may not be entirely correct - previously we returned the state of the current BitMap */
|
|
return palette_mapped;
|
|
}
|
|
|
|
|
|
/**
|
|
* \brief Sets a clip rectangle for subsequent plot operations.
|
|
*
|
|
* \param ctx The current redraw context.
|
|
* \param clip The rectangle to limit all subsequent plot
|
|
* operations within.
|
|
* \return NSERROR_OK on success else error code.
|
|
*/
|
|
static nserror
|
|
ami_clip(const struct redraw_context *ctx, const struct rect *clip)
|
|
{
|
|
struct gui_globals *glob = (struct gui_globals *)ctx->priv;
|
|
struct Region *reg = NULL;
|
|
|
|
NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_clip()");
|
|
|
|
if (glob->rp->Layer) {
|
|
reg = NewRegion();
|
|
|
|
glob->rect.MinX = clip->x0;
|
|
glob->rect.MinY = clip->y0;
|
|
glob->rect.MaxX = clip->x1-1;
|
|
glob->rect.MaxY = clip->y1-1;
|
|
|
|
OrRectRegion(reg,&glob->rect);
|
|
|
|
reg = InstallClipRegion(glob->rp->Layer,reg);
|
|
|
|
if(reg) {
|
|
DisposeRegion(reg);
|
|
}
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Plots an arc
|
|
*
|
|
* plot an arc segment around (x,y), anticlockwise from angle1
|
|
* to angle2. Angles are measured anticlockwise from
|
|
* horizontal, in degrees.
|
|
*
|
|
* \param ctx The current redraw context.
|
|
* \param style Style controlling the arc plot.
|
|
* \param x The x coordinate of the arc.
|
|
* \param y The y coordinate of the arc.
|
|
* \param radius The radius of the arc.
|
|
* \param angle1 The start angle of the arc.
|
|
* \param angle2 The finish angle of the arc.
|
|
* \return NSERROR_OK on success else error code.
|
|
*/
|
|
static nserror
|
|
ami_arc(const struct redraw_context *ctx,
|
|
const plot_style_t *style,
|
|
int x, int y, int radius, int angle1, int angle2)
|
|
{
|
|
NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_arc()");
|
|
|
|
struct gui_globals *glob = (struct gui_globals *)ctx->priv;
|
|
|
|
if (angle2 < angle1) {
|
|
angle2 += 360;
|
|
}
|
|
|
|
ami_plot_setapen(glob, glob->rp, style->fill_colour);
|
|
ami_arc_gfxlib(glob->rp, x, y, radius, angle1, angle2);
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Plots a circle
|
|
*
|
|
* Plot a circle centered on (x,y), which is optionally filled.
|
|
*
|
|
* \param ctx The current redraw context.
|
|
* \param style Style controlling the circle plot.
|
|
* \param x x coordinate of circle centre.
|
|
* \param y y coordinate of circle centre.
|
|
* \param radius circle radius.
|
|
* \return NSERROR_OK on success else error code.
|
|
*/
|
|
static nserror
|
|
ami_disc(const struct redraw_context *ctx,
|
|
const plot_style_t *style,
|
|
int x, int y, int radius)
|
|
{
|
|
NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_disc()");
|
|
|
|
struct gui_globals *glob = (struct gui_globals *)ctx->priv;
|
|
|
|
if (style->fill_type != PLOT_OP_TYPE_NONE) {
|
|
ami_plot_setapen(glob, glob->rp, style->fill_colour);
|
|
AreaCircle(glob->rp,x,y,radius);
|
|
AreaEnd(glob->rp);
|
|
}
|
|
|
|
if (style->stroke_type != PLOT_OP_TYPE_NONE) {
|
|
ami_plot_setapen(glob, glob->rp, style->stroke_colour);
|
|
DrawEllipse(glob->rp,x,y,radius,radius);
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Plots a line
|
|
*
|
|
* plot a line from (x0,y0) to (x1,y1). Coordinates are at
|
|
* centre of line width/thickness.
|
|
*
|
|
* \param ctx The current redraw context.
|
|
* \param style Style controlling the line plot.
|
|
* \param line A rectangle defining the line to be drawn
|
|
* \return NSERROR_OK on success else error code.
|
|
*/
|
|
static nserror
|
|
ami_line(const struct redraw_context *ctx,
|
|
const plot_style_t *style,
|
|
const struct rect *line)
|
|
{
|
|
NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_line()");
|
|
|
|
struct gui_globals *glob = (struct gui_globals *)ctx->priv;
|
|
|
|
glob->rp->PenWidth = plot_style_fixed_to_int(style->stroke_width);
|
|
glob->rp->PenHeight = plot_style_fixed_to_int(style->stroke_width);
|
|
|
|
switch (style->stroke_type) {
|
|
case PLOT_OP_TYPE_SOLID: /**< Solid colour */
|
|
default:
|
|
glob->rp->LinePtrn = PATT_LINE;
|
|
break;
|
|
|
|
case PLOT_OP_TYPE_DOT: /**< Doted plot */
|
|
glob->rp->LinePtrn = PATT_DOT;
|
|
break;
|
|
|
|
case PLOT_OP_TYPE_DASH: /**< dashed plot */
|
|
glob->rp->LinePtrn = PATT_DASH;
|
|
break;
|
|
}
|
|
|
|
ami_plot_setapen(glob, glob->rp, style->stroke_colour);
|
|
Move(glob->rp, line->x0, line->y0);
|
|
Draw(glob->rp, line->x1, line->y1);
|
|
|
|
glob->rp->PenWidth = 1;
|
|
glob->rp->PenHeight = 1;
|
|
glob->rp->LinePtrn = PATT_LINE;
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Plots a rectangle.
|
|
*
|
|
* The rectangle can be filled an outline or both controlled
|
|
* by the plot style The line can be solid, dotted or
|
|
* dashed. Top left corner at (x0,y0) and rectangle has given
|
|
* width and height.
|
|
*
|
|
* \param ctx The current redraw context.
|
|
* \param style Style controlling the rectangle plot.
|
|
* \param rect A rectangle defining the line to be drawn
|
|
* \return NSERROR_OK on success else error code.
|
|
*/
|
|
static nserror
|
|
ami_rectangle(const struct redraw_context *ctx,
|
|
const plot_style_t *style,
|
|
const struct rect *rect)
|
|
{
|
|
NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_rectangle()");
|
|
|
|
struct gui_globals *glob = (struct gui_globals *)ctx->priv;
|
|
|
|
if (style->fill_type != PLOT_OP_TYPE_NONE) {
|
|
ami_plot_setapen(glob, glob->rp, style->fill_colour);
|
|
RectFill(glob->rp, rect->x0, rect->y0, rect->x1- 1 , rect->y1 - 1);
|
|
}
|
|
|
|
if (style->stroke_type != PLOT_OP_TYPE_NONE) {
|
|
glob->rp->PenWidth = plot_style_fixed_to_int(style->stroke_width);
|
|
glob->rp->PenHeight = plot_style_fixed_to_int(style->stroke_width);
|
|
|
|
switch (style->stroke_type) {
|
|
case PLOT_OP_TYPE_SOLID: /**< Solid colour */
|
|
default:
|
|
glob->rp->LinePtrn = PATT_LINE;
|
|
break;
|
|
|
|
case PLOT_OP_TYPE_DOT: /**< Dotted plot */
|
|
glob->rp->LinePtrn = PATT_DOT;
|
|
break;
|
|
|
|
case PLOT_OP_TYPE_DASH: /**< dashed plot */
|
|
glob->rp->LinePtrn = PATT_DASH;
|
|
break;
|
|
}
|
|
|
|
ami_plot_setapen(glob, glob->rp, style->stroke_colour);
|
|
Move(glob->rp, rect->x0, rect->y0);
|
|
Draw(glob->rp, rect->x1, rect->y0);
|
|
Draw(glob->rp, rect->x1, rect->y1);
|
|
Draw(glob->rp, rect->x0, rect->y1);
|
|
Draw(glob->rp, rect->x0, rect->y0);
|
|
|
|
glob->rp->PenWidth = 1;
|
|
glob->rp->PenHeight = 1;
|
|
glob->rp->LinePtrn = PATT_LINE;
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Plot a polygon
|
|
*
|
|
* Plots a filled polygon with straight lines between
|
|
* points. The lines around the edge of the ploygon are not
|
|
* plotted. The polygon is filled with the non-zero winding
|
|
* rule.
|
|
*
|
|
* \param ctx The current redraw context.
|
|
* \param style Style controlling the polygon plot.
|
|
* \param p verticies of polygon
|
|
* \param n number of verticies.
|
|
* \return NSERROR_OK on success else error code.
|
|
*/
|
|
static nserror
|
|
ami_polygon(const struct redraw_context *ctx,
|
|
const plot_style_t *style,
|
|
const int *p,
|
|
unsigned int n)
|
|
{
|
|
NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_polygon()");
|
|
|
|
struct gui_globals *glob = (struct gui_globals *)ctx->priv;
|
|
|
|
ami_plot_setapen(glob, glob->rp, style->fill_colour);
|
|
|
|
if (AreaMove(glob->rp,p[0],p[1]) == -1) {
|
|
NSLOG(netsurf, INFO, "AreaMove: vector list full");
|
|
}
|
|
|
|
for (uint32 k = 1; k < n; k++) {
|
|
if (AreaDraw(glob->rp,p[k*2],p[(k*2)+1]) == -1) {
|
|
NSLOG(netsurf, INFO, "AreaDraw: vector list full");
|
|
}
|
|
}
|
|
|
|
if (AreaEnd(glob->rp) == -1) {
|
|
NSLOG(netsurf, INFO, "AreaEnd: error");
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Plots a path.
|
|
*
|
|
* Path plot consisting of cubic Bezier curves. Line and fill colour is
|
|
* controlled by the plot style.
|
|
*
|
|
* \param ctx The current redraw context.
|
|
* \param pstyle Style controlling the path plot.
|
|
* \param p elements of path
|
|
* \param n nunber of elements on path
|
|
* \param transform A transform to apply to the path.
|
|
* \return NSERROR_OK on success else error code.
|
|
*/
|
|
static nserror
|
|
ami_path(const struct redraw_context *ctx,
|
|
const plot_style_t *pstyle,
|
|
const float *p,
|
|
unsigned int n,
|
|
const float transform[6])
|
|
{
|
|
unsigned int i;
|
|
struct bez_point start_p = {0, 0}, cur_p = {0, 0}, p_a, p_b, p_c, p_r;
|
|
|
|
NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_path()");
|
|
|
|
struct gui_globals *glob = (struct gui_globals *)ctx->priv;
|
|
|
|
if (n == 0) {
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
if (p[0] != PLOTTER_PATH_MOVE) {
|
|
NSLOG(netsurf, INFO, "Path does not start with move");
|
|
return NSERROR_INVALID;
|
|
}
|
|
|
|
if (pstyle->fill_colour != NS_TRANSPARENT) {
|
|
ami_plot_setapen(glob, glob->rp, pstyle->fill_colour);
|
|
if (pstyle->stroke_colour != NS_TRANSPARENT) {
|
|
ami_plot_setopen(glob, glob->rp, pstyle->stroke_colour);
|
|
}
|
|
} else {
|
|
if (pstyle->stroke_colour != NS_TRANSPARENT) {
|
|
ami_plot_setapen(glob, glob->rp, pstyle->stroke_colour);
|
|
} else {
|
|
return NSERROR_OK; /* wholly transparent */
|
|
}
|
|
}
|
|
|
|
/* Construct path */
|
|
for (i = 0; i < n; ) {
|
|
if (p[i] == PLOTTER_PATH_MOVE) {
|
|
if (pstyle->fill_colour != NS_TRANSPARENT) {
|
|
if (AreaMove(glob->rp, p[i+1], p[i+2]) == -1) {
|
|
NSLOG(netsurf, INFO,
|
|
"AreaMove: vector list full");
|
|
}
|
|
} else {
|
|
Move(glob->rp, p[i+1], p[i+2]);
|
|
}
|
|
/* Keep track for future Bezier curves/closes etc */
|
|
start_p.x = p[i+1];
|
|
start_p.y = p[i+2];
|
|
cur_p.x = start_p.x;
|
|
cur_p.y = start_p.y;
|
|
i += 3;
|
|
} else if (p[i] == PLOTTER_PATH_CLOSE) {
|
|
if (pstyle->fill_colour != NS_TRANSPARENT) {
|
|
if (AreaEnd(glob->rp) == -1) {
|
|
NSLOG(netsurf, INFO, "AreaEnd: error");
|
|
}
|
|
} else {
|
|
Draw(glob->rp, start_p.x, start_p.y);
|
|
}
|
|
i++;
|
|
} else if (p[i] == PLOTTER_PATH_LINE) {
|
|
if (pstyle->fill_colour != NS_TRANSPARENT) {
|
|
if (AreaDraw(glob->rp, p[i+1], p[i+2]) == -1) {
|
|
NSLOG(netsurf, INFO,
|
|
"AreaDraw: vector list full");
|
|
}
|
|
} else {
|
|
Draw(glob->rp, p[i+1], p[i+2]);
|
|
}
|
|
cur_p.x = p[i+1];
|
|
cur_p.y = p[i+2];
|
|
i += 3;
|
|
} else if (p[i] == PLOTTER_PATH_BEZIER) {
|
|
p_a.x = p[i+1];
|
|
p_a.y = p[i+2];
|
|
p_b.x = p[i+3];
|
|
p_b.y = p[i+4];
|
|
p_c.x = p[i+5];
|
|
p_c.y = p[i+6];
|
|
|
|
for (float t = 0.0; t <= 1.0; t += 0.1) {
|
|
ami_bezier(&cur_p, &p_a, &p_b, &p_c, t, &p_r);
|
|
if (pstyle->fill_colour != NS_TRANSPARENT) {
|
|
if (AreaDraw(glob->rp, p_r.x, p_r.y) == -1) {
|
|
NSLOG(netsurf, INFO,
|
|
"AreaDraw: vector list full");
|
|
}
|
|
} else {
|
|
Draw(glob->rp, p_r.x, p_r.y);
|
|
}
|
|
}
|
|
cur_p.x = p_c.x;
|
|
cur_p.y = p_c.y;
|
|
i += 7;
|
|
} else {
|
|
NSLOG(netsurf, INFO, "bad path command %f", p[i]);
|
|
/* End path for safety if using Area commands */
|
|
if (pstyle->fill_colour != NS_TRANSPARENT) {
|
|
AreaEnd(glob->rp);
|
|
BNDRYOFF(glob->rp);
|
|
}
|
|
return NSERROR_INVALID;
|
|
}
|
|
}
|
|
if (pstyle->fill_colour != NS_TRANSPARENT) {
|
|
BNDRYOFF(glob->rp);
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Plot a bitmap
|
|
*
|
|
* Tiled plot of a bitmap image. (x,y) gives the top left
|
|
* coordinate of an explicitly placed tile. From this tile the
|
|
* image can repeat in all four directions -- up, down, left
|
|
* and right -- to the extents given by the current clip
|
|
* rectangle.
|
|
*
|
|
* The bitmap_flags say whether to tile in the x and y
|
|
* directions. If not tiling in x or y directions, the single
|
|
* image is plotted. The width and height give the dimensions
|
|
* the image is to be scaled to.
|
|
*
|
|
* \param ctx The current redraw context.
|
|
* \param bitmap The bitmap to plot
|
|
* \param x The x coordinate to plot the bitmap
|
|
* \param y The y coordiante to plot the bitmap
|
|
* \param width The width of area to plot the bitmap into
|
|
* \param height The height of area to plot the bitmap into
|
|
* \param bg the background colour to alpha blend into
|
|
* \param flags the flags controlling the type of plot operation
|
|
* \return NSERROR_OK on success else error code.
|
|
*/
|
|
static nserror
|
|
ami_bitmap_tile(const struct redraw_context *ctx,
|
|
struct bitmap *bitmap,
|
|
int x, int y,
|
|
int width,
|
|
int height,
|
|
colour bg,
|
|
bitmap_flags_t flags)
|
|
{
|
|
int xf,yf,xm,ym,oy,ox;
|
|
struct BitMap *tbm = NULL;
|
|
struct Hook *bfh = NULL;
|
|
struct bfbitmap bfbm;
|
|
bool repeat_x = (flags & BITMAPF_REPEAT_X);
|
|
bool repeat_y = (flags & BITMAPF_REPEAT_Y);
|
|
|
|
NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_bitmap_tile()");
|
|
|
|
struct gui_globals *glob = (struct gui_globals *)ctx->priv;
|
|
|
|
if ((width == 0) || (height == 0)) {
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
if (!(repeat_x || repeat_y)) {
|
|
return ami_bitmap(glob, x, y, width, height, bitmap);
|
|
}
|
|
|
|
/* If it is a one pixel transparent image, we are wasting our time */
|
|
if ((amiga_bitmap_get_opaque(bitmap) == false) &&
|
|
(bitmap_get_width(bitmap) == 1) &&
|
|
(bitmap_get_height(bitmap) == 1)) {
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
tbm = ami_bitmap_get_native(bitmap, width, height, glob->palette_mapped, glob->rp->BitMap);
|
|
if (!tbm) {
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
ox = x;
|
|
oy = y;
|
|
|
|
/* get left most tile position */
|
|
for (; ox > 0; ox -= width)
|
|
|
|
/* get top most tile position */
|
|
for (; oy > 0; oy -= height);
|
|
|
|
if (ox < 0) {
|
|
ox = -ox;
|
|
}
|
|
if (oy < 0) {
|
|
oy = -oy;
|
|
}
|
|
if (repeat_x) {
|
|
xf = glob->rect.MaxX;
|
|
xm = glob->rect.MinX;
|
|
} else {
|
|
xf = x + width;
|
|
xm = x;
|
|
}
|
|
|
|
if (repeat_y) {
|
|
yf = glob->rect.MaxY;
|
|
ym = glob->rect.MinY;
|
|
} else {
|
|
yf = y + height;
|
|
ym = y;
|
|
}
|
|
#ifdef __amigaos4__
|
|
if(amiga_bitmap_get_opaque(bitmap)) {
|
|
bfh = CreateBackFillHook(BFHA_BitMap,tbm,
|
|
BFHA_Width,width,
|
|
BFHA_Height,height,
|
|
BFHA_OffsetX,ox,
|
|
BFHA_OffsetY,oy,
|
|
TAG_DONE);
|
|
} else
|
|
#endif
|
|
{
|
|
bfbm.bm = tbm;
|
|
bfbm.width = width;
|
|
bfbm.height = height;
|
|
bfbm.offsetx = ox;
|
|
bfbm.offsety = oy;
|
|
bfbm.mask = ami_bitmap_get_mask(bitmap, width, height, tbm);
|
|
bfbm.palette_mapped = glob->palette_mapped;
|
|
bfh = calloc(1, sizeof(struct Hook));
|
|
bfh->h_Entry = (HOOKFUNC)ami_bitmap_tile_hook;
|
|
bfh->h_SubEntry = 0;
|
|
bfh->h_Data = &bfbm;
|
|
}
|
|
|
|
InstallLayerHook(glob->rp->Layer,bfh);
|
|
EraseRect(glob->rp,xm,ym,xf,yf);
|
|
InstallLayerHook(glob->rp->Layer,LAYERS_NOBACKFILL);
|
|
|
|
#ifdef __amigaos4__
|
|
if (amiga_bitmap_get_opaque(bitmap)) {
|
|
DeleteBackFillHook(bfh);
|
|
} else
|
|
#endif
|
|
free(bfh);
|
|
|
|
if ((ami_bitmap_is_nativebm(bitmap, tbm) == false)) {
|
|
/**\todo is this logic logical? */
|
|
ami_rtg_freebitmap(tbm);
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* Text plotting.
|
|
*
|
|
* \param ctx The current redraw context.
|
|
* \param fstyle plot style for this text
|
|
* \param x x coordinate
|
|
* \param y y coordinate
|
|
* \param text UTF-8 string to plot
|
|
* \param length length of string, in bytes
|
|
* \return NSERROR_OK on success else error code.
|
|
*/
|
|
static nserror
|
|
ami_text(const struct redraw_context *ctx,
|
|
const struct plot_font_style *fstyle,
|
|
int x,
|
|
int y,
|
|
const char *text,
|
|
size_t length)
|
|
{
|
|
NSLOG(plot, DEEPDEBUG, "[ami_plotter] Entered ami_text()");
|
|
|
|
struct gui_globals *glob = (struct gui_globals *)ctx->priv;
|
|
|
|
if (__builtin_expect(ami_nsfont == NULL, 0)) {
|
|
return NSERROR_OK;
|
|
}
|
|
ami_plot_setapen(glob, glob->rp, fstyle->foreground);
|
|
ami_nsfont->text(glob->rp, text, length, fstyle, x, y, nsoption_bool(font_antialiasing));
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
const struct plotter_table amiplot = {
|
|
.rectangle = ami_rectangle,
|
|
.line = ami_line,
|
|
.polygon = ami_polygon,
|
|
.clip = ami_clip,
|
|
.text = ami_text,
|
|
.disc = ami_disc,
|
|
.arc = ami_arc,
|
|
.bitmap = ami_bitmap_tile,
|
|
.path = ami_path,
|
|
.option_knockout = true,
|
|
};
|
|
|