#include <assert.h>
#include <sys/types.h>
#include <stdint.h>
#include <string.h>
#include <limits.h>
#include <math.h>
#include <stdbool.h>
#include <mt_gem.h>
#include <mint/osbind.h>
#include "utils/log.h"
#include "utils/utf8.h"
#include "utils/utils.h"
#include "netsurf/bitmap.h"
#include "netsurf/plotters.h"
#include "netsurf/mouse.h"
#include "atari/gui.h"
#include "atari/osspec.h"
#include "atari/misc.h"
#include "atari/bitmap.h"
#include "utils/nsoption.h"
#include "atari/plot/eddi.h"
#include "atari/plot/fontplot.h"
#include "atari/plot/plot.h"

Include dependency graph for plot.c:

Data Structures
struct	s_view

Typedefs
typedef bool(*	bitmap_convert_fnc) (struct bitmap img, int x, int y, GRECT clip, uint32_t bg, uint32_t flags, MFDB *out)

Functions
void	vq_scrninfo (VdiHdl handle, short *work_out)

static void	snapshot_suspend (void)
	Garbage collection of the snapshot routine. More...

static void	snapshot_destroy (void)
	destroy memory used by screenshot More...

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

static void	vsl_rgbcolor (short vdih, colour cin)
	Set line drawing color by passing netsurf XBGR "colour" type. More...

static void	vsf_rgbcolor (short vdih, colour cin)
	Set fill color by passing netsurf XBGR "colour" type. More...

static void	plot_get_visible_grect (GRECT *out)
	Get current visible coords. More...

static void	update_visible_rect (void)

static bool	fbrect_to_screen (GRECT box, GRECT *ret)
	Returns the visible parts of the box. More...

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

static void	read_vdi_sysinfo (short vdih, struct s_vdi_sysinfo *info)
	Fill the screen info structure. More...

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

void	vdi1000_to_rgb (unsigned short in, unsigned char out)

static void	dump_vdi_info (short vdih)

static MFDB *	snapshot_create_native_mfdb (int x, int y, int w, int h)
	Create an snapshot of the screen image in device format. More...

static struct bitmap *	snapshot_create (int x, int y, int w, int h)
	Create an snapshot of the screen in netsurf ABGR format. More...

static uint32_t	ablend (uint32_t pixel, uint32_t scrpixel)

static bool	ablend_pixel (struct bitmap img, uint32_t bg, GRECT clip)
	Alpha blends an image, using one pixel as the background. More...

static bool	ablend_bitmap (struct bitmap img, struct bitmap bg, GRECT img_clip, GRECT bg_clip)
	Aplha blends the foreground image onto thebackground images. More...

static bool	bitmap_convert_tc (struct bitmap img, int x, int y, GRECT clip, uint32_t bg, uint32_t flags, MFDB *out)
	Convert bitmap to the native screen format. More...

static void	convert_bitmap_done (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)

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

int	plot_finalise (void)

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

float	plot_get_scale (void)

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...

VdiHdl	plot_get_vdi_handle (void)

long	plot_get_flags (void)

bool	plot_get_clip (struct rect *out)

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

FONT_PLOTTER	plot_get_text_plotter ()

void	plot_set_text_plotter (FONT_PLOTTER font_plotter)

static nserror	plot_clip (const struct redraw_context ctx, const struct rect clip)
	Sets a clip rectangle for subsequent plot operations. More...

static nserror	plot_arc (const struct redraw_context ctx, const plot_style_t pstyle, int x, int y, int radius, int angle1, int angle2)
	Plots an arc. More...

static nserror	plot_disc (const struct redraw_context ctx, const plot_style_t pstyle, int x, int y, int radius)
	Plots a circle. More...

static nserror	plot_line (const struct redraw_context ctx, const plot_style_t pstyle, const struct rect *line)
	Plots a line. More...

static nserror	plot_rectangle (const struct redraw_context ctx, const plot_style_t pstyle, const struct rect *rect)
	Plots a rectangle. More...

static nserror	plot_polygon (const struct redraw_context ctx, const plot_style_t pstyle, const int *p, unsigned int n)
	Plot a polygon. More...

static nserror	plot_path (const struct redraw_context ctx, const plot_style_t pstyle, const float *p, unsigned int n, const float transform[6])
	Plots a path. More...

static nserror	plot_bitmap (const struct redraw_context ctx, struct bitmap bitmap, int x, int y, int width, int height, colour bg, bitmap_flags_t flags)
	Plot a bitmap. More...

static nserror	plot_text (const struct redraw_context ctx, const struct plot_font_style fstyle, int x, int y, const char *text, size_t length)
	Text plotting. More...

Variables
static const char *	plot_error_codes []

FONT_PLOTTER	fplotter = NULL

short	vdih

static void *	buf_packed

static int	size_buf_packed

void *	buf_planar

int	size_buf_planar

static MFDB	buf_scr

static int	size_buf_scr

MFDB	buf_std

int	size_buf_std

struct bitmap *	buf_scr_compat

static HermesFormat	vfmt

static HermesFormat	nsfmt

struct s_vdi_sysinfo	vdi_sysinfo

static int	atari_plot_bpp_virt

static struct s_view	view

static HermesHandle	hermes_cnv_h

static HermesHandle	hermes_res_h

static struct bitmap	snapshot

VdiHdl	atari_plot_vdi_handle = -1

unsigned long	atari_plot_flags

unsigned long	atari_font_flags

static bitmap_convert_fnc	bitmap_convert

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

Typedef Documentation

◆ bitmap_convert_fnc

typedef bool(* bitmap_convert_fnc) (struct bitmap *img, int x, int y, GRECT *clip, uint32_t bg, uint32_t flags, MFDB *out)

Definition at line 212 of file plot.c.

Function Documentation

◆ ablend()

static uint32_t ablend	(	uint32_t	pixel,
		uint32_t	scrpixel
	)

inlinestatic

Definition at line 940 of file plot.c.

Referenced by ablend_bitmap(), and ablend_pixel().

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◆ ablend_bitmap()

static bool ablend_bitmap	(	struct bitmap *	img,
		struct bitmap *	bg,
		GRECT *	img_clip,
		GRECT *	bg_clip
	)

inlinestatic

Aplha blends the foreground image onto thebackground images.

The background receives the blended image pixels.

Definition at line 984 of file plot.c.

References ablend(), atari_bitmap_get_rowstride(), and bitmap::pixdata.

Referenced by bitmap_convert_tc().

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◆ ablend_pixel()

static bool ablend_pixel	(	struct bitmap *	img,
		uint32_t	bg,
		GRECT *	clip
	)

inlinestatic

Alpha blends an image, using one pixel as the background.

The bitmap receives the result.

Definition at line 961 of file plot.c.

References ablend(), atari_bitmap_get_rowstride(), clip(), and bitmap::pixdata.

Referenced by bitmap_convert_tc().

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◆ bitmap_convert_tc()

static bool bitmap_convert_tc	(	struct bitmap *	img,
		int	x,
		int	y,
		GRECT *	clip,
		uint32_t	bg,
		uint32_t	flags,
		MFDB *	out
	)

static

Convert bitmap to the native screen format.

Parameters

img	the bitmap
x	coordinate where the bitmap REGION (described in clip) shall be drawn (screen coords)
y	coordinate where the bitmap REGION (described in clip) shall be drawn (screen coords)
clip	which area of the bitmap shall be drawn
bg	background color
flags	blit flags
out	the result MFDB

Definition at line 1308 of file plot.c.

References ablend_bitmap(), ablend_pixel(), atari_bitmap_destroy(), atari_bitmap_get_height(), atari_bitmap_get_opaque(), atari_bitmap_get_width(), atari_plot_bpp_virt, atari_plot_flags, BITMAPF_BUFFER_NATIVE, BITMAPF_MONOGLYPH, buf_packed, clip(), CONV_BLOCK_SIZE, bitmap::converted, ERR_NO_MEM, hermes_cnv_h, MFDB_STRIDE, bitmap::native, nsfmt, bitmap::opaque, bitmap::pixdata, PLOT_FLAG_TRANS, bitmap::rowstride, size_buf_packed, snapshot_create(), and vfmt.

Referenced by plot_init().

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◆ convert_bitmap_done()

static void convert_bitmap_done ( void )

inlinestatic

Definition at line 1468 of file plot.c.

References buf_packed, CONV_KEEP_LIMIT, and size_buf_packed.

Referenced by plot_blit_bitmap().

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◆ dump_vdi_info()

static void dump_vdi_info ( short vdih )

static

Definition at line 710 of file plot.c.

References s_vdi_sysinfo::clut, s_vdi_sysinfo::colors, s_vdi_sysinfo::EdDiVersion, s_vdi_sysinfo::hicolors, s_vdi_sysinfo::mask_a, s_vdi_sysinfo::mask_b, s_vdi_sysinfo::mask_g, s_vdi_sysinfo::mask_r, s_vdi_sysinfo::maxintin, s_vdi_sysinfo::maxpolycoords, s_vdi_sysinfo::pitch, s_vdi_sysinfo::pixelsize, s_vdi_sysinfo::rasterscale, read_vdi_sysinfo(), s_vdi_sysinfo::scr_bpp, s_vdi_sysinfo::scr_h, s_vdi_sysinfo::scr_w, s_vdi_sysinfo::screen, s_vdi_sysinfo::screensize, s_vdi_sysinfo::vdi_handle, s_vdi_sysinfo::vdiformat, and vdih.

Referenced by plot_init().

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◆ fbrect_to_screen()

static bool fbrect_to_screen	(	GRECT	box,
		GRECT *	ret
	)

inlinestatic

Returns the visible parts of the box.

The returned values are relative coords within framebuffer, relative to screen coords (normally starting at 0,0 )

Definition at line 335 of file plot.c.

References s_view::h, s_vdi_sysinfo::scr_h, s_vdi_sysinfo::scr_w, vdi_sysinfo, view, s_view::w, s_view::x, and s_view::y.

◆ plot_arc()

static nserror plot_arc	(	const struct redraw_context *	ctx,
		const plot_style_t *	pstyle,
		int	x,
		int	y,
		int	radius,
		int	angle1,
		int	angle2
	)

static

Plots an arc.

plot an arc segment around (x,y), anticlockwise from angle1 to angle2. Angles are measured anticlockwise from horizontal, in degrees.

Parameters

ctx	The current redraw context.
pstyle	Style controlling the arc plot.
x	The x coordinate of the arc.
y	The y coordinate of the arc.
radius	The radius of the arc.
angle1	The start angle of the arc.
angle2	The finish angle of the arc.

Returns: NSERROR_OK on success else error code.

Definition at line 2043 of file plot.c.

References atari_plot_vdi_handle, plot_style_s::fill_colour, plot_style_s::fill_type, NSERROR_OK, PLOT_OP_TYPE_NONE, PLOT_OP_TYPE_SOLID, plot_style_s::stroke_colour, view, vsf_rgbcolor(), vsl_rgbcolor(), s_view::x, and s_view::y.

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◆ plot_bitmap()

static nserror plot_bitmap	(	const struct redraw_context *	ctx,
		struct bitmap *	bitmap,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	bg,
		bitmap_flags_t	flags
	)

static

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.

Parameters

ctx	The current redraw context.
bitmap	The bitmap to plot
x	The x coordinate to plot the bitmap
y	The y coordiante to plot the bitmap
width	The width of area to plot the bitmap into
height	The height of area to plot the bitmap into
bg	the background colour to alpha blend into
flags	the flags controlling the type of plot operation

Returns: NSERROR_OK on success else error code.

Definition at line 2386 of file plot.c.

References atari_bitmap_get_height(), atari_bitmap_get_width(), atari_bitmap_resize(), bitmap(), BITMAPF_REPEAT_X, BITMAPF_REPEAT_Y, clip(), height, hermes_res_h, NSERROR_NOMEM, NSERROR_OK, nsfmt, plot_blit_bitmap(), plot_get_clip(), bitmap::resized, s_view::scale, view, and width.

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◆ 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_clip()

static nserror plot_clip	(	const struct redraw_context *	ctx,
		const struct rect *	clip
	)

static

Sets a clip rectangle for subsequent plot operations.

Parameters

ctx	The current redraw context.
clip	The rectangle to limit all subsequent plot operations within.

Returns: NSERROR_OK on success else error code.

Definition at line 1974 of file plot.c.

References atari_plot_vdi_handle, clip(), s_view::clipping, NSERROR_OK, plot_get_abs_clipping_grect(), plot_get_clip_grect(), plot_get_dimensions(), s_vdi_sysinfo::scr_h, s_vdi_sysinfo::scr_w, vdi_sysinfo, view, rect::x0, rect::x1, rect::y0, and rect::y1.

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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_disc()

static nserror plot_disc	(	const struct redraw_context *	ctx,
		const plot_style_t *	pstyle,
		int	x,
		int	y,
		int	radius
	)

static

Plots a circle.

Plot a circle centered on (x,y), which is optionally filled.

Parameters

ctx	The current redraw context.
pstyle	Style controlling the circle plot.
x	x coordinate of circle centre.
y	y coordinate of circle centre.
radius	circle radius.

Returns: NSERROR_OK on success else error code.

Definition at line 2090 of file plot.c.

References atari_plot_vdi_handle, plot_style_s::fill_colour, plot_style_s::fill_type, NSERROR_OK, PLOT_OP_TYPE_SOLID, plot_style_s::stroke_colour, view, vsf_rgbcolor(), 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_text_plotter()

FONT_PLOTTER plot_get_text_plotter ( void )

Definition at line 1953 of file plot.c.

References fplotter.

◆ 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_get_visible_grect()

static void plot_get_visible_grect ( GRECT * out )

inlinestatic

Get current visible coords.

Definition at line 279 of file plot.c.

References view, s_view::vis_h, s_view::vis_w, s_view::vis_x, and s_view::vis_y.

Referenced by plot_blit_bitmap(), and plot_copy_rect().

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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_line()

static nserror plot_line	(	const struct redraw_context *	ctx,
		const plot_style_t *	pstyle,
		const struct rect *	line
	)

static

Plots a line.

plot a line from (x0,y0) to (x1,y1). Coordinates are at centre of line width/thickness.

Parameters

ctx	The current redraw context.
pstyle	Style controlling the line plot.
line	A rectangle defining the line to be drawn

Returns: NSERROR_OK on success else error code.

Definition at line 2121 of file plot.c.

References atari_plot_vdi_handle, s_view::h, line(), NSERROR_OK, NSLT2VDI, plot_style_fixed_to_int, plot_style_s::stroke_colour, plot_style_s::stroke_width, view, vsl_rgbcolor(), s_view::x, and s_view::y.

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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_path()

static nserror plot_path	(	const struct redraw_context *	ctx,
		const plot_style_t *	pstyle,
		const float *	p,
		unsigned int	n,
		const float	transform[6]
	)

static

Plots a path.

Path plot consisting of cubic Bezier curves. Line and fill colour is controlled by the plot style.

Parameters

ctx	The current redraw context.
pstyle	Style controlling the path plot.
p	elements of path
n	nunber of elements on path
transform	A transform to apply to the path.

Returns: NSERROR_OK on success else error code.

Todo:: Implement atari path plot

Definition at line 2350 of file plot.c.

References NSERROR_OK.

◆ plot_polygon()

static nserror plot_polygon	(	const struct redraw_context *	ctx,
		const plot_style_t *	pstyle,
		const int *	p,
		unsigned int	n
	)

static

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.

Parameters

ctx	The current redraw context.
pstyle	Style controlling the polygon plot.
p	verticies of polygon
n	number of verticies.

Returns: NSERROR_OK on success else error code.

Definition at line 2304 of file plot.c.

References atari_plot_vdi_handle, plot_style_s::fill_colour, plot_style_s::fill_type, s_vdi_sysinfo::maxpolycoords, NSERROR_OK, PLOT_OP_TYPE_SOLID, plot_style_s::stroke_colour, vdi_sysinfo, view, vsf_rgbcolor(), vsl_rgbcolor(), s_view::x, and s_view::y.

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◆ plot_rectangle()

static nserror plot_rectangle	(	const struct redraw_context *	ctx,
		const plot_style_t *	pstyle,
		const struct rect *	rect
	)

static

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.

Parameters

ctx	The current redraw context.
pstyle	Style controlling the rectangle plot.
rect	A rectangle defining the line to be drawn

Returns: NSERROR_OK on success else error code.

Definition at line 2180 of file plot.c.

References atari_plot_vdi_handle, s_view::clipping, plot_style_s::fill_colour, plot_style_s::fill_type, NSERROR_OK, NSLT2VDI, PLOT_OP_TYPE_NONE, plot_style_fixed_to_int, plot_style_s::stroke_colour, plot_style_s::stroke_type, plot_style_s::stroke_width, view, s_view::vis_h, s_view::vis_w, vsf_rgbcolor(), vsl_rgbcolor(), s_view::x, rect::x0, rect::x1, s_view::y, rect::y0, and rect::y1.

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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_set_text_plotter()

void plot_set_text_plotter ( FONT_PLOTTER font_plotter )

Definition at line 1959 of file plot.c.

References fplotter.

◆ plot_text()

static nserror plot_text	(	const struct redraw_context *	ctx,
		const struct plot_font_style *	fstyle,
		int	x,
		int	y,
		const char *	text,
		size_t	length
	)

static

Text plotting.

Parameters

ctx	The current redraw context.
fstyle	plot style for this text
x	x coordinate
y	y coordinate
text	UTF-8 string to plot
length	length of string, in bytes

Returns: NSERROR_OK on success else error code.

Definition at line 2488 of file plot.c.

References fplotter, NSERROR_OK, s_view::scale, plot_font_style::size, s_font_plotter::text, text(), and view.

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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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◆ read_vdi_sysinfo()

static void read_vdi_sysinfo	(	short	vdih,
		struct s_vdi_sysinfo *	info
	)

static

Fill the screen info structure.

Parameters

	vdih	The handle
[out]	info	The infor structure to fill.

Todo:: this long is being cast to a pointer

Definition at line 432 of file plot.c.

References s_vdi_sysinfo::clut, s_vdi_sysinfo::colors, EDDI_10, EDDI_11, EdDI_version(), s_vdi_sysinfo::EdDiVersion, s_vdi_sysinfo::hicolors, s_vdi_sysinfo::mask_a, s_vdi_sysinfo::mask_b, s_vdi_sysinfo::mask_g, s_vdi_sysinfo::mask_r, s_vdi_sysinfo::maxintin, s_vdi_sysinfo::maxpolycoords, s_vdi_sysinfo::pitch, s_vdi_sysinfo::pixelsize, s_vdi_sysinfo::rasterscale, s_vdi_sysinfo::scr_bpp, s_vdi_sysinfo::scr_h, s_vdi_sysinfo::scr_w, s_vdi_sysinfo::screen, s_vdi_sysinfo::screensize, tos_getcookie(), VDI_CLUT_HARDWARE, VDI_CLUT_NONE, VDI_CLUT_SOFTWARE, VDI_FORMAT_INTER, VDI_FORMAT_PACK, s_vdi_sysinfo::vdi_handle, s_vdi_sysinfo::vdiformat, vdih, and vq_scrninfo().

Referenced by dump_vdi_info(), and plot_init().

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◆ 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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◆ snapshot_create()

static struct bitmap * snapshot_create	(	int	x,
		int	y,
		int	w,
		int	h
	)

static

Create an snapshot of the screen in netsurf ABGR format.

This creates an snapshot in RGBA format (NetSurf's native format)

Capture the screen at x,y location

Parameters

x	absolute screen coords
y	absolute screen coords
w	width
h	height

Definition at line 803 of file plot.c.

References atari_bitmap_create(), atari_bitmap_get_rowstride(), atari_bitmap_realloc(), BITMAP_GROW, bitmap::bpp, buf_scr_compat, bitmap::height, hermes_cnv_h, MFDB_STRIDE, bitmap::native, nsfmt, bitmap::pixdata, s_vdi_sysinfo::pixelsize, bitmap::rowstride, snapshot, snapshot_create_native_mfdb(), vdi_sysinfo, vfmt, and bitmap::width.

Referenced by bitmap_convert_tc().

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◆ snapshot_create_native_mfdb()

static MFDB * snapshot_create_native_mfdb	(	int	x,
		int	y,
		int	w,
		int	h
	)

static

Create an snapshot of the screen image in device format.

Definition at line 742 of file plot.c.

References atari_plot_vdi_handle, buf_scr, init_mfdb(), MFDB_STRIDE, s_vdi_sysinfo::scr_bpp, size_buf_scr, and vdi_sysinfo.

Referenced by snapshot_create().

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◆ snapshot_destroy()

static void snapshot_destroy ( void )

static

destroy memory used by screenshot

Shut down the snapshot interface.

Definition at line 922 of file plot.c.

References atari_bitmap_destroy(), buf_scr, buf_scr_compat, and buf_std.

Referenced by plot_finalise().

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◆ snapshot_suspend()

static void snapshot_suspend ( void )

static

Garbage collection of the snapshot routine.

Notify the snapshot interface that the last snapshot is no longer in use.

this should be called after you are done with the data returned by snapshot_create don't access the screenshot after you called this function

Definition at line 877 of file plot.c.

References atari_bitmap_buffer_size(), atari_bitmap_realloc(), BITMAP_SHRINK, bitmap::bpp, buf_scr, buf_scr_compat, buf_std, CONV_KEEP_LIMIT, size_buf_scr, and size_buf_std.

Referenced by plot_blit_bitmap().

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◆ update_visible_rect()

static void update_visible_rect ( void )

inlinestatic

Definition at line 295 of file plot.c.

References common, s_view::h, s_vdi_sysinfo::scr_h, s_vdi_sysinfo::scr_w, vdi_sysinfo, view, s_view::vis_h, s_view::vis_w, s_view::vis_x, s_view::vis_y, s_view::w, s_view::x, and s_view::y.

Referenced by plot_init(), and plot_set_dimensions().

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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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◆ vq_scrninfo()

void vq_scrninfo	(	VdiHdl	handle,
		short *	work_out
	)

Referenced by read_vdi_sysinfo().

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◆ vsf_rgbcolor()

static void vsf_rgbcolor	(	short	vdih,
		colour	cin
	)

inlinestatic

Set fill color by passing netsurf XBGR "colour" type.

Parameters

vdih	The vdi handle
cin	The netsurf colour value

Definition at line 255 of file plot.c.

References OFFSET_CUSTOM_COLOR, rgb_to_vdi1000(), s_vdi_sysinfo::scr_bpp, vdi_sysinfo, and vdih.

Referenced by plot_arc(), plot_disc(), plot_polygon(), and plot_rectangle().

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◆ vsl_rgbcolor()

static void vsl_rgbcolor	(	short	vdih,
		colour	cin
	)

inlinestatic

Set line drawing color by passing netsurf XBGR "colour" type.

Parameters

vdih	The vdi handle
cin	The netsurf colour value

Definition at line 228 of file plot.c.

References OFFSET_CUSTOM_COLOR, rgb_to_vdi1000(), s_vdi_sysinfo::scr_bpp, vdi_sysinfo, and vdih.

Referenced by plot_arc(), plot_line(), plot_polygon(), and plot_rectangle().

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Variable Documentation

◆ atari_font_flags

unsigned long atari_font_flags

Definition at line 210 of file plot.c.

Referenced by plot_init().

◆ atari_plot_bpp_virt

int atari_plot_bpp_virt

static

Definition at line 198 of file plot.c.

Referenced by bitmap_convert_tc(), and plot_init().

◆ atari_plot_flags

unsigned long atari_plot_flags

Definition at line 209 of file plot.c.

Referenced by bitmap_convert_tc(), plot_get_flags(), plot_init(), plot_lock(), and plot_unlock().

◆ atari_plot_vdi_handle

VdiHdl atari_plot_vdi_handle = -1

Definition at line 208 of file plot.c.

Referenced by plot_arc(), plot_blit_bitmap(), plot_blit_mfdb(), plot_clip(), plot_copy_rect(), plot_disc(), plot_finalise(), plot_get_vdi_handle(), plot_init(), plot_line(), plot_polygon(), plot_rectangle(), plot_unlock(), and snapshot_create_native_mfdb().

◆ atari_plotters

const struct plotter_table atari_plotters

Initial value:

= {
    .rectangle = plot_rectangle,
    .line = plot_line,
    .polygon = plot_polygon,
    .clip = plot_clip,
    .text = plot_text,
    .disc = plot_disc,
    .arc = plot_arc,
    .bitmap = plot_bitmap,
    .path = plot_path,
    .flush = NULL,
    .group_start = NULL,
    .group_end = NULL,
    .option_knockout = true
}

atari plottr operation table

Definition at line 2507 of file plot.c.

Referenced by atari_treeview_redraw(), and gui_init().

◆ bitmap_convert

bitmap_convert_fnc bitmap_convert

static

Definition at line 213 of file plot.c.

Referenced by plot_blit_bitmap(), and plot_init().

◆ buf_packed

void* buf_packed

static

Definition at line 170 of file plot.c.

Referenced by bitmap_convert_tc(), convert_bitmap_done(), plot_finalise(), and plot_init().

◆ buf_planar

void* buf_planar

Definition at line 174 of file plot.c.

Referenced by plot_finalise(), and plot_init().

◆ buf_scr

MFDB buf_scr

static

Definition at line 179 of file plot.c.

Referenced by snapshot_create_native_mfdb(), snapshot_destroy(), and snapshot_suspend().

◆ buf_scr_compat

struct bitmap* buf_scr_compat

Definition at line 186 of file plot.c.

Referenced by snapshot_create(), snapshot_destroy(), and snapshot_suspend().

◆ buf_std

MFDB buf_std

Definition at line 183 of file plot.c.

Referenced by snapshot_destroy(), and snapshot_suspend().

◆ fplotter

FONT_PLOTTER fplotter = NULL

Definition at line 165 of file plot.c.

Referenced by atari_font_position(), atari_font_split(), atari_font_width(), new_font_plotter(), plot_finalise(), plot_get_text_plotter(), plot_init(), plot_set_text_plotter(), and plot_text().

◆ hermes_cnv_h

HermesHandle hermes_cnv_h

static

Definition at line 202 of file plot.c.

Referenced by bitmap_convert_tc(), plot_finalise(), plot_init(), and snapshot_create().

◆ hermes_res_h

HermesHandle hermes_res_h

static

Definition at line 203 of file plot.c.

Referenced by plot_bitmap(), and plot_init().

◆ nsfmt

HermesFormat nsfmt

static

Definition at line 194 of file plot.c.

Referenced by bitmap_convert_tc(), plot_bitmap(), plot_init(), and snapshot_create().

◆ plot_error_codes

const char* plot_error_codes[]

static

Initial value:

= {
    "None",
    "ERR_BUFFERSIZE_EXCEEDS_SCREEN",
    "ERR_NO_MEM",
    "ERR_PLOTTER_NOT_AVAILABLE"
}

Definition at line 158 of file plot.c.

Referenced by plot_err_str().

◆ size_buf_packed

int size_buf_packed

static

Definition at line 171 of file plot.c.

Referenced by bitmap_convert_tc(), convert_bitmap_done(), and plot_init().

◆ size_buf_planar

int size_buf_planar

Definition at line 175 of file plot.c.

Referenced by plot_init().

◆ size_buf_scr

int size_buf_scr

static

Definition at line 180 of file plot.c.

Referenced by snapshot_create_native_mfdb(), and snapshot_suspend().

◆ size_buf_std

int size_buf_std

Definition at line 184 of file plot.c.

Referenced by snapshot_suspend().

◆ snapshot

struct bitmap snapshot

static

Definition at line 206 of file plot.c.

Referenced by llcache_object_snapshot(), and snapshot_create().

◆ vdi_sysinfo

struct s_vdi_sysinfo vdi_sysinfo

Definition at line 196 of file plot.c.

Referenced by fbrect_to_screen(), plot_clip(), plot_init(), plot_polygon(), snapshot_create(), snapshot_create_native_mfdb(), update_visible_rect(), vsf_rgbcolor(), and vsl_rgbcolor().

◆ vdih

short vdih

extern

Referenced by dump_vdi_info(), read_vdi_sysinfo(), vsf_rgbcolor(), and vsl_rgbcolor().

◆ vfmt

HermesFormat vfmt

static

Definition at line 189 of file plot.c.

Referenced by bitmap_convert_tc(), plot_finalise(), plot_init(), and snapshot_create().

◆ view

struct s_view view

static

Definition at line 199 of file plot.c.

Referenced by bitmap_render(), fbrect_to_screen(), NSBaseView::Instantiate(), nsbeos_attach_toplevel_view(), nsbeos_current_gc_lock(), nsbeos_current_gc_set(), nsbeos_dispatch_event(), nsbeos_plot_arc(), nsbeos_plot_bbitmap(), nsbeos_plot_bitmap(), nsbeos_plot_caret(), nsbeos_plot_clip(), nsbeos_plot_disc(), nsbeos_plot_line(), nsbeos_plot_path(), nsbeos_plot_polygon(), nsbeos_plot_rectangle(), nsbeos_set_colour(), nsbeos_window_expose_event(), nsbeos_window_moved_event(), nsfont_paint(), nsgtk_burger_menu_create(), nsgtk_menu_initialise(), nsgtk_menu_view_submenu(), plot_arc(), plot_bitmap(), plot_blit_bitmap(), plot_blit_mfdb(), plot_clip(), plot_copy_rect(), plot_disc(), plot_get_abs_clipping(), plot_get_abs_clipping_grect(), plot_get_clip(), plot_get_dimensions(), plot_get_scale(), plot_get_visible_grect(), plot_init(), plot_line(), plot_polygon(), plot_rectangle(), plot_set_abs_clipping(), plot_set_dimensions(), plot_set_scale(), plot_text(), and update_visible_rect().

Data Structures

Typedefs

Functions

Variables

Typedef Documentation

◆ bitmap_convert_fnc

Function Documentation

◆ ablend()

◆ ablend_bitmap()

◆ ablend_pixel()

◆ bitmap_convert_tc()

◆ convert_bitmap_done()

◆ dump_vdi_info()

◆ fbrect_to_screen()

◆ plot_arc()

◆ plot_bitmap()

◆ plot_blit_bitmap()

◆ plot_blit_mfdb()

◆ plot_clip()

◆ plot_copy_rect()

◆ plot_disc()

◆ 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_text_plotter()

◆ plot_get_vdi_handle()

◆ plot_get_visible_grect()

◆ plot_init()

◆ plot_line()

◆ plot_lock()

◆ plot_path()

◆ plot_polygon()

◆ plot_rectangle()

◆ plot_set_abs_clipping()

◆ plot_set_dimensions()

◆ plot_set_scale()

◆ plot_set_text_plotter()

◆ plot_text()

◆ plot_unlock()

◆ read_vdi_sysinfo()

◆ rgb_to_vdi1000()

◆ snapshot_create()

◆ snapshot_create_native_mfdb()

◆ snapshot_destroy()

◆ snapshot_suspend()

◆ update_visible_rect()

◆ vdi1000_to_rgb()

◆ vq_scrninfo()

◆ vsf_rgbcolor()

◆ vsl_rgbcolor()

Variable Documentation

◆ atari_font_flags

◆ atari_plot_bpp_virt

◆ atari_plot_flags

◆ atari_plot_vdi_handle

◆ atari_plotters

◆ bitmap_convert

◆ buf_packed

◆ buf_planar

◆ buf_scr

◆ buf_scr_compat

◆ buf_std

◆ fplotter

◆ hermes_cnv_h

◆ hermes_res_h

◆ nsfmt

◆ plot_error_codes

◆ size_buf_packed

◆ size_buf_planar

◆ size_buf_scr

◆ size_buf_std

◆ snapshot

◆ vdi_sysinfo

◆ vdih