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:

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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_test_opaque (void *bitmap)
	Tests whether a bitmap has an opaque alpha channel. 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...
static void	ami_bitmap_argb_to_rgba (struct bitmap *bm)
static void	ami_bitmap_rgba_to_argb (struct bitmap *bm)
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.

Referenced by ami_bitmap_get_generic().

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_argb_to_rgba()

static void ami_bitmap_argb_to_rgba ( struct bitmap *  bm )

static

Definition at line 369 of file bitmap.c.

References amiga_bitmap_get_buffer(), bitmap::height, and bitmap::width.

Referenced by ami_bitmap_get_generic(), and bitmap_render().

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ami_bitmap_fini()

void ami_bitmap_fini

(

void

)

Cleanup bitmap allocations.

Definition at line 719 of file bitmap.c.

References ami_memory_itempool_delete, and pool_bitmap.

Referenced by main().

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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 794 of file bitmap.c.

References bitmap::icondata.

Referenced by amiga_icon_free().

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ami_bitmap_from_datatype()

struct bitmap* ami_bitmap_from_datatype

(

char *

filename

)

Definition at line 446 of file bitmap.c.

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

Referenced by ami_theme_throbber_setup().

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ami_bitmap_get_generic()

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

static

Definition at line 474 of file bitmap.c.

References ami_bitmap_argb_to_rgba(), AMI_BITMAP_FORMAT, ami_bitmap_rgba_to_argb(), 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, bitmap::native, bitmap::nativebm, bitmap::nativebmheight, bitmap::nativebmwidth, NSLOG, nsoption_bool, nsoption_int, scrn, type, VTX_RECT, and bitmap::width.

Referenced by ami_bitmap_get_palettemapped(), and ami_bitmap_get_truecolour().

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ami_bitmap_get_mask()

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

Definition at line 667 of file bitmap.c.

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

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

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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 707 of file bitmap.c.

References ami_bitmap_get_palettemapped(), and ami_bitmap_get_truecolour().

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().

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ami_bitmap_get_palettemapped()

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

static

Definition at line 697 of file bitmap.c.

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

Referenced by ami_bitmap_get_native().

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ami_bitmap_get_truecolour()

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

static

Definition at line 657 of file bitmap.c.

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

Referenced by ami_bitmap_get_native().

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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 800 of file bitmap.c.

References bitmap::nativebm.

Referenced by ami_bitmap(), and ami_bitmap_tile().

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ami_bitmap_rgba_to_argb()

static void ami_bitmap_rgba_to_argb ( struct bitmap *  bm )

static

Definition at line 379 of file bitmap.c.

References amiga_bitmap_get_buffer(), bitmap::height, bitmap::nativebm, bitmap::nativebmheight, bitmap::nativebmwidth, bitmap::opaque, and bitmap::width.

Referenced by ami_bitmap_get_generic().

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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 789 of file bitmap.c.

References bitmap::icondata.

Referenced by amiga_icon_from_bitmap().

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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 783 of file bitmap.c.

References bitmap::title.

Referenced by ami_file_save(), and HOOKF().

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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 777 of file bitmap.c.

References nsurl_ref(), and bitmap::url.

Referenced by ami_file_save(), and HOOKF().

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ami_datatype_object_from_bitmap()

Object* ami_datatype_object_from_bitmap

(

struct bitmap *

bitmap

)

Definition at line 408 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().

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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, 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, and bitmap::width.

Referenced by ami_bitmap_from_datatype().

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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().

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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_argb_to_rgba(), ami_bitmap_from_datatype(), ami_bitmap_get_generic(), ami_bitmap_get_mask(), ami_bitmap_rgba_to_argb(), ami_datatype_object_from_bitmap(), amiga_bitmap_create(), amiga_bitmap_test_opaque(), and bitmap_render().

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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 328 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().

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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().

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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().

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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, and SaveDTObjectA.

Referenced by ami_file_save(), and ami_gui_cache_favicon().

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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().

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amiga_bitmap_test_opaque()

bool amiga_bitmap_test_opaque

(

void *

bitmap

)

Tests whether a bitmap has an opaque alpha channel.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Returns

whether the bitmap is opaque

Definition at line 309 of file bitmap.c.

References amiga_bitmap_get_buffer(), bitmap(), bitmap::height, and bitmap::width.

Referenced by ami_bitmap_from_datatype().

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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().

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bitmap_get_height()

int bitmap_get_height

(

void *

bitmap

)

get height of a bitmap.

Return the height of a bitmap.

Definition at line 355 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().

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bitmap_get_width()

int bitmap_get_width

(

void *

bitmap

)

get width of a bitmap.

Return the width of a bitmap.

Definition at line 338 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().

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bitmap_render()

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

static

Definition at line 725 of file bitmap.c.

References ami_bitmap_argb_to_rgba(), 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.

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Variable Documentation

amiga_bitmap_table

struct gui_bitmap_table* amiga_bitmap_table = &bitmap_table

Definition at line 821 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,
        .test_opaque = amiga_bitmap_test_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 807 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().