167 lines
5.8 KiB
C
Executable File
167 lines
5.8 KiB
C
Executable File
/*
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* Copyright 2010 Ole Loots <ole@monochrom.net>
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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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#ifndef NS_ATARI_PLOT_H
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#define NS_ATARI_PLOT_H
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#include <stdlib.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include <assert.h>
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#include <mint/osbind.h>
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#include <mint/cookie.h>
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#include <Hermes/Hermes.h>
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#include "desktop/plotters.h"
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#include "desktop/plot_style.h"
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#include "image/bitmap.h"
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#include "atari/bitmap.h"
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#include "atari/plot/eddi.h"
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#include "atari/plot/fontplot.h"
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/* how much memory should be kept allocated for temp. conversion bitmaps: */
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#define CONV_KEEP_LIMIT 512000
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/* how much memory to allocate if some is needed: */
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#define CONV_BLOCK_SIZE 32000
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/* Plotter Option Flags: */
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#define PLOT_FLAG_DITHER 0x04 /* true if the plotter shall dither images */
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#define PLOT_FLAG_TRANS 0x08 /* true if the plotter supports transparent operations */
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/* Plotter "feature" flags */
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#define PLOT_FLAG_HAS_DITHER 0x0400
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#define PLOT_FLAG_HAS_ALPHA 0x0800
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#define PLOT_FLAG_OFFSCREEN 0x1000 /* offsreen plotter should set this flag */
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/* Plotter "internal" flags */
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#define PLOT_FLAG_LOCKED 0x08000 /* plotter should set this flag during screen updates */
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/* Font Plotter flags: */
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#define FONTPLOT_FLAG_MONOGLYPH 0x01
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/* Flags for init_mfdb function: */
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#define MFDB_FLAG_STAND 0x01
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#define MFDB_FLAG_ZEROMEM 0x02
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#define MFDB_FLAG_NOALLOC 0x04
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/* Flags for blit functions: */
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#define BITMAPF_MONOGLYPH 4096 /* The bitmap is an character bitmap */
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#define BITMAPF_BUFFER_NATIVE 8192 /* Bitmap shall be kept converted */
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/* Error codes: */
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#define ERR_BUFFERSIZE_EXCEEDS_SCREEN 1 /* The buffer allocated is larger than the screen */
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#define ERR_NO_MEM 2 /* Not enough memory for requested operation */
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#define ERR_PLOTTER_NOT_AVAILABLE 3 /* invalid plotter driver name passed */
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struct s_vdi_sysinfo {
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short vdi_handle; /* vdi handle */
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short scr_w; /* resolution horz. */
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short scr_h; /* resolution vert. */
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short scr_bpp; /* bits per pixel */
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int colors; /* 0=hiclor, 2=mono */
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unsigned long hicolors; /* if colors = 0 */
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short pixelsize; /* bytes per pixel */
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unsigned short pitch; /* row pitch */
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unsigned short vdiformat; /* pixel format */
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unsigned short clut; /* type of clut support */
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void * screen; /* pointer to screen, or NULL */
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unsigned long screensize; /* size of screen (in bytes) */
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unsigned long mask_r; /* color masks */
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unsigned long mask_g;
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unsigned long mask_b;
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unsigned long mask_a;
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short maxintin; /* maximum pxy items */
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short maxpolycoords; /* max coords for p_line etc. */
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unsigned long EdDiVersion; /* EdDi Version or 0 */
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bool rasterscale; /* raster scaling support */
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};
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struct rect;
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extern const struct plotter_table atari_plotters;
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int plot_init(char *);
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int plot_finalise(void);
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/* translate an error number */
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const char* plot_err_str(int i) ;
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bool plot_lock(void);
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bool plot_unlock(void);
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bool plot_set_dimensions( int x, int y, int w, int h );
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bool plot_get_dimensions(GRECT *dst);
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bool plot_get_clip(struct rect * out);
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/* Get clipping for current framebuffer as GRECT */
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void plot_get_clip_grect(GRECT * out);
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bool plot_clip(const struct rect *clip);
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VdiHdl plot_get_vdi_handle(void);
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long plot_get_flags(void);
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bool plot_rectangle( int x0, int y0, int x1, int y1,const plot_style_t *style );
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bool plot_line( int x0, int y0, int x1, int y1, const plot_style_t *style );
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bool plot_blit_bitmap(struct bitmap * bmp, int x, int y,
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unsigned long bg, unsigned long flags);
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bool plot_blit_mfdb(GRECT * loc, MFDB * insrc, short fgcolor,
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uint32_t flags);
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bool plot_copy_rect(GRECT src, GRECT dst);
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/* convert an vdi color to bgra */
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void vdi1000_to_rgb( unsigned short * in, unsigned char * out );
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/* convert an bgra color to vdi1000 color */
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void rgb_to_vdi1000( unsigned char * in, RGB1000 *out);
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/* convert an rgb color to an index into the web palette */
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short rgb_to_666_index(unsigned char r, unsigned char g, unsigned char b);
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/* assign vdi line style to dst ( netsurf type ) */
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#define NSLT2VDI(dst, src) \
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dst = 0;\
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switch( src->stroke_type ) {\
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case PLOT_OP_TYPE_DOT: \
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dst = (0xAAAA00 | 7);\
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break;\
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case PLOT_OP_TYPE_DASH:\
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dst = 3; \
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break;\
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case PLOT_OP_TYPE_SOLID:\
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case PLOT_OP_TYPE_NONE:\
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default:\
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dst = 1;\
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break;\
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}\
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#ifdef WITH_8BPP_SUPPORT
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/* some Well known indexes into the VDI palette */
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/* common indexes into the VDI palette */
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/* (only used when running with 256 colors or less ) */
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#define OFFSET_WEB_PAL 16
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#define OFFSET_CUST_PAL 232
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#define RGB_TO_VDI(c) rgb_to_666_index( (c&0xFF),(c&0xFF00)>>8,(c&0xFF0000)>>16)+OFFSET_WEB_PAL
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#endif
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/* the name of this macro is crap - it should be named bgr_to_rgba ... or so */
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#define ABGR_TO_RGB(c) ( ((c&0xFF)<<16) | (c&0xFF00) | ((c&0xFF0000)>>16) ) << 8
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/* this index into the palette is used by the TC renderer to set current draw color: */
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#define OFFSET_CUSTOM_COLOR 255
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#endif
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