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Data Structures
struct	s_vdi_sysinfo

Macros
#define	CONV_KEEP_LIMIT 512000
	how much memory should be kept allocated for temp. More...

#define	CONV_BLOCK_SIZE 32000
	how much memory to allocate if some is needed: More...

#define	PLOT_FLAG_DITHER 0x04
	set if the plotter shall dither images More...

#define	PLOT_FLAG_TRANS 0x08
	set if the plotter supports transparent operations More...

#define	PLOT_FLAG_HAS_DITHER 0x0400

#define	PLOT_FLAG_HAS_ALPHA 0x0800

#define	PLOT_FLAG_OFFSCREEN 0x1000
	offscreen plotter should set this flag More...

#define	PLOT_FLAG_LOCKED 0x08000
	plotter should set this flag during screen updates More...

#define	FONTPLOT_FLAG_MONOGLYPH 0x01

#define	MFDB_FLAG_STAND 0x01

#define	MFDB_FLAG_ZEROMEM 0x02

#define	MFDB_FLAG_NOALLOC 0x04

#define	BITMAPF_MONOGLYPH 4096
	The bitmap is an character bitmap. More...

#define	BITMAPF_BUFFER_NATIVE 8192
	Bitmap shall be kept converted More...

#define	ERR_BUFFERSIZE_EXCEEDS_SCREEN 1 /* The buffer allocated is larger than the screen */

#define	ERR_NO_MEM 2 /* Not enough memory for requested operation */

#define	ERR_PLOTTER_NOT_AVAILABLE 3 /* invalid plotter driver name passed */

#define	NSLT2VDI(dst, src)

#define	ABGR_TO_RGB(c) ( ((c&0xFF)<<16) \| (c&0xFF00) \| ((c&0xFF0000)>>16) ) << 8

#define	OFFSET_CUSTOM_COLOR 255

Functions
int	plot_init (const struct redraw_context ctx, char fdrvrname)
	Init screen and font driver objects. More...

int	plot_finalise (void)

const char *	plot_err_str (int i)
	translate an error number More...

bool	plot_lock (void)

bool	plot_unlock (void)

bool	plot_set_dimensions (const struct redraw_context *ctx, int x, int y, int w, int h)
	Set plot origin and canvas size. More...

bool	plot_get_dimensions (GRECT *dst)
	Get current canvas size. More...

float	plot_get_scale (void)

float	plot_set_scale (float)
	set scale of plotter. More...

void	plot_set_abs_clipping (const GRECT *area)
	Subsequent calls to plot_clip will be clipped by the absolute clip. More...

void	plot_get_abs_clipping (struct rect *dst)
	Get the maximum clip extent, in absolute screen coords. More...

void	plot_get_abs_clipping_grect (GRECT *dst)
	Get the maximum clip extent, in absolute screen coords. More...

bool	plot_get_clip (struct rect *out)

void	plot_get_clip_grect (GRECT *out)
	Get clipping for current framebuffer as GRECT. More...

VdiHdl	plot_get_vdi_handle (void)

long	plot_get_flags (void)

bool	plot_blit_bitmap (struct bitmap *bmp, int x, int y, unsigned long bg, unsigned long flags)

bool	plot_blit_mfdb (GRECT loc, MFDB insrc, short fgcolor, uint32_t flags)

bool	plot_copy_rect (GRECT src, GRECT dst)
	copy an rectangle from the plot buffer to screen More...

void	vdi1000_to_rgb (unsigned short in, unsigned char out)

void	rgb_to_vdi1000 (unsigned char in, RGB1000 out)
	Convert an RGB color to an VDI Color. More...

short	rgb_to_666_index (unsigned char r, unsigned char g, unsigned char b)

Variables
const struct plotter_table	atari_plotters
	atari plottr operation table More...

Macro Definition Documentation

◆ ABGR_TO_RGB

#define ABGR_TO_RGB ( c ) ( ((c&0xFF)<<16) | (c&0xFF00) | ((c&0xFF0000)>>16) ) << 8

Definition at line 170 of file plot.h.

◆ BITMAPF_BUFFER_NATIVE

#define BITMAPF_BUFFER_NATIVE 8192

Bitmap shall be kept converted

Definition at line 50 of file plot.h.

◆ BITMAPF_MONOGLYPH

#define BITMAPF_MONOGLYPH 4096

The bitmap is an character bitmap.

Definition at line 49 of file plot.h.

◆ CONV_BLOCK_SIZE

#define CONV_BLOCK_SIZE 32000

how much memory to allocate if some is needed:

Definition at line 26 of file plot.h.

◆ CONV_KEEP_LIMIT

#define CONV_KEEP_LIMIT 512000

how much memory should be kept allocated for temp.

conversion bitmaps:

Definition at line 23 of file plot.h.

◆ ERR_BUFFERSIZE_EXCEEDS_SCREEN

#define ERR_BUFFERSIZE_EXCEEDS_SCREEN 1 /* The buffer allocated is larger than the screen */

Definition at line 53 of file plot.h.

◆ ERR_NO_MEM

#define ERR_NO_MEM 2 /* Not enough memory for requested operation */

Definition at line 54 of file plot.h.

◆ ERR_PLOTTER_NOT_AVAILABLE

#define ERR_PLOTTER_NOT_AVAILABLE 3 /* invalid plotter driver name passed */

Definition at line 55 of file plot.h.

◆ FONTPLOT_FLAG_MONOGLYPH

#define FONTPLOT_FLAG_MONOGLYPH 0x01

Definition at line 41 of file plot.h.

◆ MFDB_FLAG_NOALLOC

#define MFDB_FLAG_NOALLOC 0x04

Definition at line 46 of file plot.h.

◆ MFDB_FLAG_STAND

#define MFDB_FLAG_STAND 0x01

Definition at line 44 of file plot.h.

◆ MFDB_FLAG_ZEROMEM

#define MFDB_FLAG_ZEROMEM 0x02

Definition at line 45 of file plot.h.

◆ NSLT2VDI

#define NSLT2VDI	(	dst,
		src
	)

Value:

        dst = 0;                                \
        switch( src->stroke_type ) {            \
        case PLOT_OP_TYPE_DOT:                  \
                dst = (0xAAAA00 | 7);           \
                break;                          \
        case PLOT_OP_TYPE_DASH:                 \
                dst = 3;                        \
                break;                          \
        case PLOT_OP_TYPE_SOLID:                \
        case PLOT_OP_TYPE_NONE:                 \
        default:                                \
                dst = 1;                        \
                break;                          \
        }

Definition at line 143 of file plot.h.

◆ OFFSET_CUSTOM_COLOR

#define OFFSET_CUSTOM_COLOR 255

Definition at line 175 of file plot.h.

◆ PLOT_FLAG_DITHER

#define PLOT_FLAG_DITHER 0x04

set if the plotter shall dither images

Definition at line 29 of file plot.h.

◆ PLOT_FLAG_HAS_ALPHA

#define PLOT_FLAG_HAS_ALPHA 0x0800

Definition at line 34 of file plot.h.

◆ PLOT_FLAG_HAS_DITHER

#define PLOT_FLAG_HAS_DITHER 0x0400

Definition at line 33 of file plot.h.

◆ PLOT_FLAG_LOCKED

#define PLOT_FLAG_LOCKED 0x08000

plotter should set this flag during screen updates

Definition at line 38 of file plot.h.

◆ PLOT_FLAG_OFFSCREEN

#define PLOT_FLAG_OFFSCREEN 0x1000

offscreen plotter should set this flag

Definition at line 35 of file plot.h.

◆ PLOT_FLAG_TRANS

#define PLOT_FLAG_TRANS 0x08

set if the plotter supports transparent operations

Definition at line 30 of file plot.h.

Function Documentation

◆ plot_blit_bitmap()

bool plot_blit_bitmap	(	struct bitmap *	bmp,
		int	x,
		int	y,
		unsigned long	bg,
		unsigned long	flags
	)

Definition at line 1482 of file plot.c.

References atari_plot_vdi_handle, bitmap_convert, clip(), s_view::clipping, convert_bitmap_done(), bitmap::height, plot_get_visible_grect(), snapshot_suspend(), view, bitmap::width, s_view::x, rect::x0, rect::x1, s_view::y, rect::y0, and rect::y1.

Referenced by plot_bitmap().

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◆ plot_blit_mfdb()

bool plot_blit_mfdb	(	GRECT *	loc,
		MFDB *	insrc,
		short	fgcolor,
		uint32_t	flags
	)

Definition at line 1551 of file plot.c.

References atari_plot_vdi_handle, init_mfdb(), PLOT_FLAG_TRANS, plot_get_clip_grect(), view, s_view::x, and s_view::y.

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◆ plot_copy_rect()

bool plot_copy_rect	(	GRECT	src,
		GRECT	dst
	)

copy an rectangle from the plot buffer to screen

because this is an on-screen plotter, this is an screen to screen copy.

Definition at line 374 of file plot.c.

References atari_plot_vdi_handle, plot_get_visible_grect(), plot_lock(), plot_unlock(), view, s_view::x, and s_view::y.

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◆ plot_err_str()

const char * plot_err_str ( int i )

translate an error number

Definition at line 216 of file plot.c.

References plot_error_codes.

Referenced by plot_init().

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◆ plot_finalise()

int plot_finalise ( void )

Definition at line 1748 of file plot.c.

References atari_plot_vdi_handle, buf_packed, buf_planar, delete_font_plotter(), fplotter, hermes_cnv_h, snapshot_destroy(), and vfmt.

Referenced by gui_quit().

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◆ plot_get_abs_clipping()

void plot_get_abs_clipping ( struct rect * dst )

Get the maximum clip extent, in absolute screen coords.

Parameters

dst	the structure that receives the absolute clipping

Definition at line 1899 of file plot.c.

References s_view::abs_clipping, and view.

◆ plot_get_abs_clipping_grect()

void plot_get_abs_clipping_grect ( GRECT * dst )

Get the maximum clip extent, in absolute screen coords.

Parameters

dst	the structure that receives the absolute clipping

Definition at line 1909 of file plot.c.

References s_view::abs_clipping, view, rect::x0, rect::x1, rect::y0, and rect::y1.

Referenced by plot_clip().

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◆ plot_get_clip()

bool plot_get_clip ( struct rect * out )

Definition at line 1930 of file plot.c.

References s_view::clipping, view, rect::x0, rect::x1, rect::y0, and rect::y1.

Referenced by plot_bitmap(), and plot_get_clip_grect().

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◆ plot_get_clip_grect()

void plot_get_clip_grect ( GRECT * out )

Get clipping for current framebuffer as GRECT.

Definition at line 1940 of file plot.c.

References clip(), and plot_get_clip().

Referenced by plot_blit_mfdb(), and plot_clip().

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◆ plot_get_dimensions()

bool plot_get_dimensions ( GRECT * dst )

Get current canvas size.

Parameters

dst	the GRECT * which receives the canvas size

Definition at line 1838 of file plot.c.

References s_view::h, view, s_view::w, s_view::x, and s_view::y.

Referenced by plot_clip(), and plot_set_abs_clipping().

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◆ plot_get_flags()

long plot_get_flags ( void )

Definition at line 1924 of file plot.c.

References atari_plot_flags.

Referenced by atari_treeview_redraw().

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◆ plot_get_scale()

float plot_get_scale ( void )

Definition at line 1864 of file plot.c.

References s_view::scale, and view.

Referenced by atari_font_position(), atari_font_split(), and atari_font_width().

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◆ plot_get_vdi_handle()

VdiHdl plot_get_vdi_handle ( void )

Definition at line 1918 of file plot.c.

References atari_plot_vdi_handle.

Referenced by atari_about_show(), atari_treeview_redraw(), and window_redraw_favicon().

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◆ plot_init()

int plot_init	(	const struct redraw_context *	ctx,
		char *	fdrvrname
	)

Init screen and font driver objects.

Parameters

ctx	The current redraw context.
fdrvrname	font driver name.

Returns: value > 1 when the objects could be succesfully created or <= 0 to indicate an error.

Definition at line 1612 of file plot.c.

References atari_font_flags, atari_plot_bpp_virt, atari_plot_flags, atari_plot_vdi_handle, bitmap_convert, bitmap_convert_tc(), buf_packed, buf_planar, clip(), plotter_table::clip, die(), dump_font_drivers(), dump_vdi_info(), FONTPLOT_FLAG_MONOGLYPH, fplotter, s_view::h, hermes_cnv_h, hermes_res_h, s_vdi_sysinfo::mask_a, s_vdi_sysinfo::mask_b, s_vdi_sysinfo::mask_g, s_vdi_sysinfo::mask_r, new_font_plotter(), nsfmt, NSLOG, nsoption_int, redraw_context::plot, plot_err_str(), PLOT_FLAG_DITHER, PLOT_FLAG_TRANS, plot_set_scale(), read_vdi_sysinfo(), rgb_to_vdi1000(), s_vdi_sysinfo::scr_bpp, size_buf_packed, size_buf_planar, update_visible_rect(), vdi1000_to_rgb(), VDI_FORMAT_PACK, vdi_sysinfo, s_vdi_sysinfo::vdiformat, verbose_log, vfmt, view, s_view::w, s_view::x, and s_view::y.

Referenced by gui_init().

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◆ plot_lock()

bool plot_lock ( void )

Definition at line 1775 of file plot.c.

References atari_plot_flags, and PLOT_FLAG_LOCKED.

Referenced by atari_treeview_redraw(), plot_copy_rect(), and window_process_redraws().

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◆ plot_set_abs_clipping()

void plot_set_abs_clipping ( const GRECT * area )

Subsequent calls to plot_clip will be clipped by the absolute clip.

Parameters

area	the maximum clipping rectangle (absolute screen coords)

Definition at line 1875 of file plot.c.

References s_view::abs_clipping, plot_get_dimensions(), view, rect::x0, rect::x1, rect::y0, and rect::y1.

Referenced by plot_set_dimensions(), and window_process_redraws().

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◆ plot_set_dimensions()

bool plot_set_dimensions	(	const struct redraw_context *	ctx,
		int	x,
		int	y,
		int	w,
		int	h
	)

Set plot origin and canvas size.

Parameters

ctx	The current redraw context.
x	the x origin
y	the y origin
w	the width of the plot area
h	the height of the plot area

Definition at line 1806 of file plot.c.

References plotter_table::clip, s_view::h, redraw_context::plot, plot_set_abs_clipping(), update_visible_rect(), view, s_view::w, s_view::x, and s_view::y.

Referenced by atari_treeview_redraw(), toolbar_redraw(), window_redraw_content(), and window_redraw_favicon().

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◆ plot_set_scale()

float plot_set_scale ( float scale )

set scale of plotter.

Parameters

scale the new scale value

Returns: the old scale value

Definition at line 1854 of file plot.c.

References s_view::scale, and view.

Referenced by plot_init(), toolbar_redraw(), and window_redraw_content().

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◆ plot_unlock()

bool plot_unlock ( void )

Definition at line 1791 of file plot.c.

References atari_plot_flags, atari_plot_vdi_handle, and PLOT_FLAG_LOCKED.

Referenced by atari_treeview_redraw(), plot_copy_rect(), and window_process_redraws().

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◆ rgb_to_666_index()

short rgb_to_666_index	(	unsigned char	r,
		unsigned char	g,
		unsigned char	b
	)

◆ rgb_to_vdi1000()

void rgb_to_vdi1000	(	unsigned char *	in,
		RGB1000 *	out
	)

inline

Convert an RGB color to an VDI Color.

Definition at line 564 of file plot.c.

Referenced by plot_init(), vsf_rgbcolor(), and vsl_rgbcolor().

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◆ vdi1000_to_rgb()

void vdi1000_to_rgb	(	unsigned short *	in,
		unsigned char *	out
	)

inline

Definition at line 576 of file plot.c.

Referenced by plot_init().

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Variable Documentation

◆ atari_plotters

const struct plotter_table atari_plotters

extern

atari plottr operation table

Definition at line 2507 of file plot.c.

Referenced by atari_treeview_redraw(), and gui_init().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ ABGR_TO_RGB

◆ BITMAPF_BUFFER_NATIVE

◆ BITMAPF_MONOGLYPH

◆ CONV_BLOCK_SIZE

◆ CONV_KEEP_LIMIT

◆ ERR_BUFFERSIZE_EXCEEDS_SCREEN

◆ ERR_NO_MEM

◆ ERR_PLOTTER_NOT_AVAILABLE

◆ FONTPLOT_FLAG_MONOGLYPH

◆ MFDB_FLAG_NOALLOC

◆ MFDB_FLAG_STAND

◆ MFDB_FLAG_ZEROMEM

◆ NSLT2VDI

◆ OFFSET_CUSTOM_COLOR

◆ PLOT_FLAG_DITHER

◆ PLOT_FLAG_HAS_ALPHA

◆ PLOT_FLAG_HAS_DITHER

◆ PLOT_FLAG_LOCKED

◆ PLOT_FLAG_OFFSCREEN

◆ PLOT_FLAG_TRANS

Function Documentation

◆ plot_blit_bitmap()

◆ plot_blit_mfdb()

◆ plot_copy_rect()

◆ plot_err_str()

◆ plot_finalise()

◆ plot_get_abs_clipping()

◆ plot_get_abs_clipping_grect()

◆ plot_get_clip()

◆ plot_get_clip_grect()

◆ plot_get_dimensions()

◆ plot_get_flags()

◆ plot_get_scale()

◆ plot_get_vdi_handle()

◆ plot_init()

◆ plot_lock()

◆ plot_set_abs_clipping()

◆ plot_set_dimensions()

◆ plot_set_scale()

◆ plot_unlock()

◆ rgb_to_666_index()

◆ rgb_to_vdi1000()

◆ vdi1000_to_rgb()

Variable Documentation

◆ atari_plotters