bitmap.c File Reference

#include "amiga/os3support.h"
#include <stdlib.h>
#include <string.h>
#include <proto/exec.h>
#include <graphics/gfxbase.h>
#include <proto/datatypes.h>
#include <datatypes/pictureclass.h>
#include <proto/dos.h>
#include <proto/intuition.h>
#include <proto/utility.h>
#include <proto/guigfx.h>
#include <guigfx/guigfx.h>
#include <render/render.h>
#include <inline/guigfx.h>
#include "assert.h"
#include "utils/log.h"
#include "utils/nsoption.h"
#include "utils/nsurl.h"
#include "utils/messages.h"
#include "netsurf/bitmap.h"
#include "netsurf/content.h"
#include "amiga/gui.h"
#include "amiga/bitmap.h"
#include "amiga/plotters.h"
#include "amiga/memory.h"
#include "amiga/misc.h"
#include "amiga/rtg.h"
#include "amiga/schedule.h"

Include dependency graph for bitmap.c:

Go to the source code of this file.

Data Structures
struct	bitmap
	RISC OS wimp toolkit bitmap. More...
struct	vertex

Macros
#define	VTX(I, X, Y, S, T)   vtx[I].x = X; vtx[I].y = Y; vtx[I].s = S; vtx[I].t = T; vtx[I].w = 1.0f;
#define	VTX_RECT(SX, SY, SW, SH, DX, DY, DW, DH)

Enumerations
enum	{ AMI_NSBM_NONE = 0 , AMI_NSBM_TRUECOLOUR , AMI_NSBM_PALETTEMAPPED }

Functions
void *	amiga_bitmap_create (int width, int height, enum gui_bitmap_flags flags)
	Create a bitmap. More...
static void	amiga_bitmap_unmap_buffer (void *p)
unsigned char *	amiga_bitmap_get_buffer (void *bitmap)
	Return a pointer to the pixel data in a bitmap. More...
size_t	amiga_bitmap_get_rowstride (void *bitmap)
	Find the width of a pixel row in bytes. More...
void	amiga_bitmap_destroy (void *bitmap)
	Free a bitmap. More...
bool	amiga_bitmap_save (void *bitmap, const char *path, unsigned flags)
	Save a bitmap in the platform's native format. More...
void	amiga_bitmap_modified (void *bitmap)
	The bitmap image has changed, so flush any persistant cache. More...
void	amiga_bitmap_set_opaque (void *bitmap, bool opaque)
	Sets whether a bitmap should be plotted opaque. More...
bool	amiga_bitmap_get_opaque (void *bitmap)
	Gets whether a bitmap should be plotted opaque. More...
int	bitmap_get_width (void *bitmap)
	get width of a bitmap. More...
int	bitmap_get_height (void *bitmap)
	get height of a bitmap. More...
Object *	ami_datatype_object_from_bitmap (struct bitmap *bitmap)
struct bitmap *	ami_bitmap_from_datatype (char *filename)
static struct BitMap *	ami_bitmap_get_generic (struct bitmap *bitmap, int width, int height, struct BitMap *restrict friendbm, int type)
static struct BitMap *	ami_bitmap_get_truecolour (struct bitmap *bitmap, int width, int height, struct BitMap *friendbm)
PLANEPTR	ami_bitmap_get_mask (struct bitmap *bitmap, int width, int height, struct BitMap *n_bm)
static struct BitMap *	ami_bitmap_get_palettemapped (struct bitmap *bitmap, int width, int height, struct BitMap *friendbm)
struct BitMap *	ami_bitmap_get_native (struct bitmap *bitmap, int width, int height, bool palette_mapped, struct BitMap *friendbm)
void	ami_bitmap_fini (void)
	Cleanup bitmap allocations. More...
static nserror	bitmap_render (struct bitmap *bitmap, struct hlcache_handle *content)
void	ami_bitmap_set_url (struct bitmap *bm, struct nsurl *url)
	Set bitmap URL. More...
void	ami_bitmap_set_title (struct bitmap *bm, const char *title)
	Set bitmap title. More...
void	ami_bitmap_set_icondata (struct bitmap *bm, ULONG *icondata)
	Set an icondata pointer. More...
void	ami_bitmap_free_icondata (struct bitmap *bm)
	Free an icondata pointer. More...
bool	ami_bitmap_is_nativebm (struct bitmap *bm, struct BitMap *nbm)
	Test if a BitMap is owned by a bitmap. More...

Variables
static APTR	pool_bitmap = NULL
static bool	guigfx_warned = false
static struct gui_bitmap_table	bitmap_table
struct gui_bitmap_table *	amiga_bitmap_table = &bitmap_table

Macro Definition Documentation

VTX

#define VTX	(		I,
			X,
			Y,
			S,
			T
	)		vtx[I].x = X; vtx[I].y = Y; vtx[I].s = S; vtx[I].t = T; vtx[I].w = 1.0f;

Definition at line 98 of file bitmap.c.

VTX_RECT

#define VTX_RECT	(		SX,
			SY,
			SW,
			SH,
			DX,
			DY,
			DW,
			DH
	)

Value:

                VTX(0, DX,      DY,      SX,      SY); \
                VTX(1, DX + DW, DY,      SX + SW, SY); \
                VTX(2, DX,      DY + DH, SX,      SY + SH); \
                VTX(3, DX + DW, DY,      SX + SW, SY); \
                VTX(4, DX,      DY + DH, SX,      SY + SH); \
                VTX(5, DX + DW, DY + DH, SX + SW, SY + SH);

Definition at line 99 of file bitmap.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
AMI_NSBM_NONE
AMI_NSBM_TRUECOLOUR
AMI_NSBM_PALETTEMAPPED

Definition at line 87 of file bitmap.c.

Function Documentation

ami_bitmap_fini()

void ami_bitmap_fini

(

void

)

Cleanup bitmap allocations.

Definition at line 678 of file bitmap.c.

References ami_memory_itempool_delete, and pool_bitmap.

Referenced by main().

Here is the caller graph for this function:

ami_bitmap_free_icondata()

void ami_bitmap_free_icondata

(

struct bitmap *

bm

)

Free an icondata pointer.

Parameters

bm	a bitmap, as returned by bitmap_create()

This function probably shouldn't be here!

Definition at line 751 of file bitmap.c.

References bitmap::icondata.

Referenced by amiga_icon_free().

Here is the caller graph for this function:

ami_bitmap_from_datatype()

struct bitmap * ami_bitmap_from_datatype

(

char *

filename

)

Definition at line 407 of file bitmap.c.

References amiga_bitmap_create(), amiga_bitmap_get_buffer(), amiga_bitmap_get_rowstride(), amiga_bitmap_set_opaque(), bitmap_test_opaque(), bitmap::dto, IDoMethod, and PDTA_PromoteMask.

Referenced by ami_theme_throbber_setup().

Here is the call graph for this function:

Here is the caller graph for this function:

ami_bitmap_get_generic()

static struct BitMap * ami_bitmap_get_generic ( struct bitmap *  bitmap, int  width, int  height, struct BitMap *restrict  friendbm, int  type  )

inlinestatic

Definition at line 435 of file bitmap.c.

References AMI_BITMAP_FORMAT, ami_gui_get_screen(), AMI_NSBM_NONE, AMI_NSBM_PALETTEMAPPED, AMI_NSBM_TRUECOLOUR, ami_rtg_allocbitmap(), ami_rtg_freebitmap(), ami_rtg_writepixelarray(), amiga_bitmap_get_buffer(), amiga_bitmap_modified(), amiga_warn_user(), bitmap::drawhandle, guigfx_warned, bitmap::height, height, bitmap::native, bitmap::nativebm, bitmap::nativebmheight, bitmap::nativebmwidth, NSLOG, nsoption_bool, nsoption_int, scrn, type, VTX_RECT, bitmap::width, and width.

Referenced by ami_bitmap_get_palettemapped(), and ami_bitmap_get_truecolour().

Here is the call graph for this function:

Here is the caller graph for this function:

ami_bitmap_get_mask()

PLANEPTR ami_bitmap_get_mask	(	struct bitmap *	bitmap,
		int	width,
		int	height,
		struct BitMap *	n_bm
	)

Definition at line 626 of file bitmap.c.

References amiga_bitmap_get_buffer(), amiga_bitmap_get_opaque(), bitmap::height, height, bitmap::native_mask, nsoption_int, SetMem, bitmap::width, and width.

Referenced by ami_bitmap(), ami_bitmap_tile(), and gui_window_set_icon().

Here is the call graph for this function:

Here is the caller graph for this function:

ami_bitmap_get_native()

struct BitMap * ami_bitmap_get_native	(	struct bitmap *	bitmap,
		int	width,
		int	height,
		bool	palette_mapped,
		struct BitMap *	friendbm
	)

Definition at line 666 of file bitmap.c.

References ami_bitmap_get_palettemapped(), ami_bitmap_get_truecolour(), height, palette_mapped, and width.

Referenced by ami_bitmap(), ami_bitmap_tile(), ami_theme_throbber_setup(), amiga_icon_from_bitmap(), amiga_icon_superimpose_favicon_internal(), gui_search_web_provider_update(), and gui_window_set_icon().

Here is the call graph for this function:

Here is the caller graph for this function:

ami_bitmap_get_palettemapped()

static struct BitMap * ami_bitmap_get_palettemapped ( struct bitmap *  bitmap, int  width, int  height, struct BitMap *  friendbm  )

inlinestatic

Definition at line 656 of file bitmap.c.

References ami_bitmap_get_generic(), AMI_NSBM_NONE, AMI_NSBM_PALETTEMAPPED, amiga_bitmap_modified(), height, bitmap::native, and width.

Referenced by ami_bitmap_get_native().

Here is the call graph for this function:

Here is the caller graph for this function:

ami_bitmap_get_truecolour()

static struct BitMap * ami_bitmap_get_truecolour ( struct bitmap *  bitmap, int  width, int  height, struct BitMap *  friendbm  )

inlinestatic

Definition at line 616 of file bitmap.c.

References ami_bitmap_get_generic(), AMI_NSBM_NONE, AMI_NSBM_TRUECOLOUR, amiga_bitmap_modified(), height, bitmap::native, and width.

Referenced by ami_bitmap_get_native().

Here is the call graph for this function:

Here is the caller graph for this function:

ami_bitmap_is_nativebm()

bool ami_bitmap_is_nativebm	(	struct bitmap *	bm,
		struct BitMap *	nbm
	)

Test if a BitMap is owned by a bitmap.

Parameters

bm	a bitmap, as returned by bitmap_create()
nbm	a BitMap, as created by AllocBitMap()

Returns

true if the BitMap is owned by the bitmap

Definition at line 757 of file bitmap.c.

References bitmap::nativebm.

Referenced by ami_bitmap(), and ami_bitmap_tile().

Here is the caller graph for this function:

ami_bitmap_set_icondata()

void ami_bitmap_set_icondata	(	struct bitmap *	bm,
		ULONG *	icondata
	)

Set an icondata pointer.

Parameters

bm	a bitmap, as returned by bitmap_create()
icondata	a pointer to memory

This function probably shouldn't be here!

Definition at line 746 of file bitmap.c.

References bitmap::icondata.

Referenced by amiga_icon_from_bitmap().

Here is the caller graph for this function:

ami_bitmap_set_title()

void ami_bitmap_set_title	(	struct bitmap *	bm,
		const char *	title
	)

Set bitmap title.

Parameters

bm	a bitmap, as returned by bitmap_create()
title	a pointer to a title string

This is copied by the bitmap object. The title can only ever be set once for a bitmap.

Definition at line 740 of file bitmap.c.

References bitmap::title.

Referenced by ami_file_save(), and HOOKF().

Here is the caller graph for this function:

ami_bitmap_set_url()

void ami_bitmap_set_url	(	struct bitmap *	bm,
		struct nsurl *	url
	)

Set bitmap URL.

Parameters

bm	a bitmap, as returned by bitmap_create()
url	the url for the bitmap

A reference will be kept by the bitmap object. The URL can only ever be set once for a bitmap.

Definition at line 734 of file bitmap.c.

References nsurl_ref(), and bitmap::url.

Referenced by ami_file_save(), and HOOKF().

Here is the call graph for this function:

Here is the caller graph for this function:

ami_datatype_object_from_bitmap()

Object * ami_datatype_object_from_bitmap

(

struct bitmap *

bitmap

)

Definition at line 369 of file bitmap.c.

References amiga_bitmap_get_buffer(), amiga_bitmap_get_opaque(), amiga_bitmap_get_rowstride(), bitmap_get_height(), bitmap_get_width(), bitmap::dto, IDoMethod, messages_get(), nsurl_access(), bitmap::title, and bitmap::url.

Referenced by ami_easy_clipboard_bitmap(), and amiga_bitmap_save().

Here is the call graph for this function:

Here is the caller graph for this function:

amiga_bitmap_create()

void * amiga_bitmap_create	(	int	width,
		int	height,
		enum gui_bitmap_flags	flags
	)

Create a bitmap.

Parameters

width	width of image in pixels
height	width of image in pixels
flags	flags for bitmap creation

Returns

an opaque struct bitmap, or NULL on memory exhaustion

Definition at line 111 of file bitmap.c.

References AllocSysObjectTags, ami_memory_clear_alloc(), ami_memory_itempool_alloc, ami_memory_itempool_create, AMI_NSBM_NONE, amiga_bitmap_get_buffer(), bitmap(), BITMAP_OPAQUE, bitmap::drawhandle, bitmap::height, height, bitmap::icondata, bitmap::iextmem, bitmap::native, bitmap::native_mask, bitmap::nativebm, bitmap::nativebmheight, bitmap::nativebmwidth, nsoption_bool, bitmap::opaque, bitmap::pixdata, pool_bitmap, bitmap::size, bitmap::title, bitmap::url, bitmap::width, and width.

Referenced by ami_bitmap_from_datatype().

Here is the call graph for this function:

Here is the caller graph for this function:

amiga_bitmap_destroy()

void amiga_bitmap_destroy

(

void *

bitmap

)

Free a bitmap.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Definition at line 213 of file bitmap.c.

References ami_memory_clear_free, ami_memory_itempool_free, ami_rtg_freebitmap(), ami_schedule(), amiga_bitmap_unmap_buffer(), bitmap(), bitmap::drawhandle, FreeSysObject(), bitmap::height, bitmap::iextmem, bitmap::native_mask, bitmap::nativebm, nsoption_bool, nsurl_unref(), bitmap::pixdata, pool_bitmap, bitmap::title, bitmap::url, and bitmap::width.

Referenced by ami_theme_throbber_free().

Here is the call graph for this function:

Here is the caller graph for this function:

amiga_bitmap_get_buffer()

unsigned char * amiga_bitmap_get_buffer

(

void *

bitmap

)

Return a pointer to the pixel data in a bitmap.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Returns

pointer to the pixel buffer

The pixel data is packed as BITMAP_FORMAT, possibly with padding at the end of rows. The width of a row in bytes is given by bitmap_get_rowstride().

Definition at line 174 of file bitmap.c.

References ami_schedule(), amiga_bitmap_unmap_buffer(), bitmap(), bitmap::iextmem, NSLOG, nsoption_bool, bitmap::pixdata, and bitmap::size.

Referenced by ami_bitmap_from_datatype(), ami_bitmap_get_generic(), ami_bitmap_get_mask(), ami_datatype_object_from_bitmap(), amiga_bitmap_create(), and bitmap_render().

Here is the call graph for this function:

Here is the caller graph for this function:

amiga_bitmap_get_opaque()

bool amiga_bitmap_get_opaque

(

void *

bitmap

)

Gets whether a bitmap should be plotted opaque.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Definition at line 309 of file bitmap.c.

References bitmap(), and bitmap::opaque.

Referenced by ami_bitmap(), ami_bitmap_get_mask(), ami_bitmap_tile(), ami_datatype_object_from_bitmap(), and gui_window_set_icon().

Here is the call graph for this function:

Here is the caller graph for this function:

amiga_bitmap_get_rowstride()

size_t amiga_bitmap_get_rowstride

(

void *

bitmap

)

Find the width of a pixel row in bytes.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Returns

width of a pixel row in the bitmap

Definition at line 197 of file bitmap.c.

References bitmap(), and bitmap::width.

Referenced by ami_bitmap_from_datatype(), and ami_datatype_object_from_bitmap().

Here is the call graph for this function:

Here is the caller graph for this function:

amiga_bitmap_modified()

void amiga_bitmap_modified

(

void *

bitmap

)

The bitmap image has changed, so flush any persistant cache.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Definition at line 280 of file bitmap.c.

References AMI_NSBM_NONE, ami_rtg_freebitmap(), ami_schedule(), amiga_bitmap_unmap_buffer(), bitmap(), bitmap::drawhandle, bitmap::height, bitmap::native, bitmap::native_mask, bitmap::nativebm, and bitmap::width.

Referenced by ami_bitmap_get_generic(), ami_bitmap_get_palettemapped(), and ami_bitmap_get_truecolour().

Here is the call graph for this function:

Here is the caller graph for this function:

amiga_bitmap_save()

bool amiga_bitmap_save	(	void *	bitmap,
		const char *	path,
		unsigned	flags
	)

Save a bitmap in the platform's native format.

Parameters

bitmap	a bitmap, as returned by bitmap_create()
path	pathname for file
flags	flags controlling how the bitmap is saved.

Returns

true on success, false on error and error reported

Definition at line 255 of file bitmap.c.

References AMI_BITMAP_SCALE_ICON, ami_datatype_object_from_bitmap(), bitmap::dto, IDoMethod, path(), and SaveDTObjectA.

Referenced by ami_file_save(), and ami_gui_cache_favicon().

Here is the call graph for this function:

Here is the caller graph for this function:

amiga_bitmap_set_opaque()

void amiga_bitmap_set_opaque	(	void *	bitmap,
		bool	opaque
	)

Sets whether a bitmap should be plotted opaque.

Parameters

bitmap	a bitmap, as returned by bitmap_create()
opaque	whether the bitmap should be plotted opaque

Definition at line 300 of file bitmap.c.

References bitmap(), and bitmap::opaque.

Referenced by ami_bitmap_from_datatype(), and bitmap_render().

Here is the call graph for this function:

Here is the caller graph for this function:

amiga_bitmap_unmap_buffer()

static void amiga_bitmap_unmap_buffer ( void *  p )

static

Definition at line 157 of file bitmap.c.

References bitmap::iextmem, NSLOG, nsoption_bool, bitmap::pixdata, and bitmap::size.

Referenced by amiga_bitmap_destroy(), amiga_bitmap_get_buffer(), and amiga_bitmap_modified().

Here is the caller graph for this function:

bitmap_get_height()

int bitmap_get_height

(

void *

bitmap

)

get height of a bitmap.

Return the height of a bitmap.

Definition at line 336 of file bitmap.c.

References bitmap(), and bitmap::height.

Referenced by ami_bitmap_tile(), ami_datatype_object_from_bitmap(), ami_theme_throbber_get_height(), ami_theme_throbber_setup(), and riscos_bitmap_convert_8bpp().

Here is the call graph for this function:

Here is the caller graph for this function:

bitmap_get_width()

int bitmap_get_width

(

void *

bitmap

)

get width of a bitmap.

Return the width of a bitmap.

Definition at line 319 of file bitmap.c.

References bitmap(), and bitmap::width.

Referenced by ami_bitmap_tile(), ami_datatype_object_from_bitmap(), ami_theme_throbber_get_width(), ami_theme_throbber_setup(), and riscos_bitmap_convert_8bpp().

Here is the call graph for this function:

Here is the caller graph for this function:

bitmap_render()

static nserror bitmap_render ( struct bitmap *  bitmap, struct hlcache_handle *  content  )

static

Definition at line 684 of file bitmap.c.

References ami_clearclipreg(), ami_plot_ra_alloc(), ami_plot_ra_free(), ami_plot_ra_get_bitmap(), amiga_bitmap_get_buffer(), amiga_bitmap_set_opaque(), amiplot, content_get_width(), content_scaled_redraw(), bitmap::height, redraw_context::interactive, MIN, NSERROR_OK, NSLOG, and bitmap::width.

Here is the call graph for this function:

Variable Documentation

amiga_bitmap_table

struct gui_bitmap_table* amiga_bitmap_table = &bitmap_table

Definition at line 777 of file bitmap.c.

Referenced by main().

bitmap_table

struct gui_bitmap_table bitmap_table

static

Initial value:

= {
        .create = amiga_bitmap_create,
        .destroy = amiga_bitmap_destroy,
        .set_opaque = amiga_bitmap_set_opaque,
        .get_opaque = amiga_bitmap_get_opaque,
        .get_buffer = amiga_bitmap_get_buffer,
        .get_rowstride = amiga_bitmap_get_rowstride,
        .get_width = bitmap_get_width,
        .get_height = bitmap_get_height,
        .modified = amiga_bitmap_modified,
        .render = bitmap_render,
}

Definition at line 764 of file bitmap.c.

guigfx_warned

bool guigfx_warned = false

static

Definition at line 108 of file bitmap.c.

Referenced by ami_bitmap_get_generic().

pool_bitmap

APTR pool_bitmap = NULL

static

Definition at line 107 of file bitmap.c.

Referenced by ami_bitmap_fini(), amiga_bitmap_create(), and amiga_bitmap_destroy().