image.c File Reference

#include <stdbool.h>
#include <swis.h>
#include <stdlib.h>
#include <oslib/colourtrans.h>
#include <oslib/osspriteop.h>
#include "utils/nsoption.h"
#include "utils/log.h"
#include "riscos/image.h"
#include "riscos/gui.h"
#include "riscos/wimp.h"
#include "riscos/tinct.h"

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Functions
static bool	image_redraw_tinct (osspriteop_id header, int x, int y, int req_width, int req_height, int width, int height, colour background_colour, bool repeatx, bool repeaty, bool alpha, unsigned int tinct_options)
	Plot an image at the given coordinates using tinct. More...
static bool	image_redraw_os (osspriteop_id header, int x, int y, int req_width, int req_height, int width, int height, bool tile)
	Plot an image at the given coordinates using os_spriteop. More...
static void	image__override_sprite_mode (osspriteop_area *area, image_type type, os_mode old, os_mode new)
	Override a sprite's mode. More...
bool	image_redraw (osspriteop_area *area, int x, int y, int req_width, int req_height, int width, int height, colour background_colour, bool repeatx, bool repeaty, bool background, image_type type)
	Plot an image at the given coordinates using the method specified. More...

Function Documentation

image__override_sprite_mode()

static void image__override_sprite_mode ( osspriteop_area *  area, image_type  type, os_mode  old, os_mode  new  )

inlinestatic

Override a sprite's mode.

Only replaces mode if existing mode matches old.

Parameters

[in]	area	The sprite area containing the sprite.
[in]	type	Requested plot mode.
[in]	old	Existing sprite mode to check for.
[in]	new	Sprite mode to set if existing mode is expected.

Definition at line 179 of file image.c.

References IMAGE_PLOT_TINCT_ALPHA, and type.

Referenced by image_redraw().

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image_redraw()

bool image_redraw	(	osspriteop_area *	area,
		int	x,
		int	y,
		int	req_width,
		int	req_height,
		int	width,
		int	height,
		colour	background_colour,
		bool	repeatx,
		bool	repeaty,
		bool	background,
		image_type	type
	)

Plot an image at the given coordinates using the method specified.

Parameters

area	The sprite area containing the sprite
x	Left edge of sprite
y	Top edge of sprite
req_width	The requested width of the sprite
req_height	The requested height of the sprite
width	The actual width of the sprite
height	The actual height of the sprite
background_colour	The background colour to blend to
repeatx	Repeat the image in the x direction
repeaty	Repeat the image in the y direction
background	Use background image settings (otherwise foreground)
type	The plot method to use

Returns

true on success, false otherwise

Definition at line 209 of file image.c.

References alpha_SPRITE_MODE, height, image__override_sprite_mode(), IMAGE_PLOT_OS, IMAGE_PLOT_TINCT_ALPHA, IMAGE_PLOT_TINCT_OPAQUE, image_redraw_os(), image_redraw_tinct(), nsoption_int, os_alpha_sprite_supported, ro_gui_wimp_read_eig_factors(), tinct_options, tinct_SPRITE_MODE, tinct_USE_OS_SPRITE_OP, type, and width.

Referenced by ro_plot_bitmap().

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image_redraw_os()

static bool image_redraw_os ( osspriteop_id  header, int  x, int  y, int  req_width, int  req_height, int  width, int  height, bool  tile  )

static

Plot an image at the given coordinates using os_spriteop.

Parameters

header	The sprite header
x	Left edge of sprite
y	Top edge of sprite
req_width	The requested width of the sprite
req_height	The requested height of the sprite
width	The actual width of the sprite
height	The actual height of the sprite
tile	Whether to tile the sprite

Returns

true on success, false otherwise

Definition at line 99 of file image.c.

References height, NSLOG, ro_warn_user(), and width.

Referenced by image_redraw().

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image_redraw_tinct()

static bool image_redraw_tinct ( osspriteop_id  header, int  x, int  y, int  req_width, int  req_height, int  width, int  height, colour  background_colour, bool  repeatx, bool  repeaty, bool  alpha, unsigned int  tinct_options  )

static

Plot an image at the given coordinates using tinct.

Parameters

header	The sprite header
x	Left edge of sprite
y	Top edge of sprite
req_width	The requested width of the sprite
req_height	The requested height of the sprite
width	The actual width of the sprite
height	The actual height of the sprite
background_colour	The background colour to blend to
repeatx	Repeat the image in the x direction
repeaty	Repeat the image in the y direction
alpha	Use the alpha channel
tinct_options	The base option set to use

Returns

true on success, false otherwise

Definition at line 50 of file image.c.

References NSLOG, print_active, tinct_BACKGROUND_SHIFT, tinct_FILL_HORIZONTALLY, tinct_FILL_VERTICALLY, tinct_options, Tinct_PlotScaled, Tinct_PlotScaledAlpha, and tinct_USE_OS_SPRITE_OP.

Referenced by image_redraw().

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