Made to Order Software Corporation - structure

jsMath Installation

Alexis Wilke — Sat, 17 Jul 2010 23:17:50 +0000

Requirements

In order to use the jsMath for displaying mathematics with TeX Drupal 6.x module you need:

The actual jsmath Drupal module
The jsMath library

Push Data

Alexis Wilke — Sun, 03 Jan 2010 04:45:16 +0000

SWF Action

Action Category:

Stack

Action Details:

Action Identifier:

150

Action Structure:

struct {
	unsigned char   f_type
	<type>          f_data
} f_push_data[<variable>];

Action Length:

-1 byte(s)

Action Stack:

push <variable> (a)

Action Operation:

a₁ = f_data[0];1
push(a₁);
a₂ = f_data[1];
push(a₂);
a₃ = f_data[2];
push(a₃);
...
a_n = f_data[n];
push(a_n);

1. Notice that the first data in the action is the last accessible on your stack.

Action Flash Version:

Get Property

Alexis Wilke — Wed, 30 Dec 2009 02:25:06 +0000

SWF Action

Action Category:

Properties

Action Details:

Action Identifier:

Action Structure:

<n.a.>

Action Length:

0 byte(s)

Action Stack:

pop 1 (n), pop 1 (s), push 1 (a)

Action Operation:

n₁ := pop();
s₂ := pop();
r := s₂[n_1];
push(r);

Action Flash Version:

See Also:

Call Method

Get Member

Set Property

Query the property n₁ of the object named s₂ (a field in a structure if you wish), and push the result on the stack. Note that since version 5, it is preferable to use Get Member or Call Method when a corresponding variable or function member is available on the object.

The following is the list of currently accepted properties or fields for the Get Property and the Set Property actions. Note that the properties can be specified with either an integer (type 7, requires V5.0+) or a single precision floating point (type 1, V4.0 compatible). And since strings are automatically transformed in a value when required, one can use a string to represent the property number (type 0). It works with a double value, I even tested a Boolean and null and it works. Obviously it isn't a good idea to use these. The default should be a single precision float. Please, see the Push Data action for more information about data types.

WARNING:

Adobe is trying to phase out this functionality. It is very likely not working in ABC code and it is not necessary since objects have member functions that can be used for the exact same purpose and it is a lot cleaner to use those instead.

Float	Decimal	Name	Comments	Version
`0x00000000`	0	x	x position in pixels (not TWIPs!)	4
`0x3F800000`	1	y	y position in pixels (not TWIPs!)	4
`0x40000000`	2	x scale	horizontal scaling factor in percent (50 — NOT 0.5 — represents half the normal size!!!)	4
`0x40400000`	3	y scale	vertical scaling factor in percent (50 — NOT 0.5 — represents half the normal size!!!)	4
`0x40800000`	4	current frame	the very frame being played; one can query the root current frame using an empty string ("") as the name of the object; note that the first current frame is number 1 and the last is equal to the total number of frames; on the other hand, the Goto instruction expects a frame number from 0 to the number of frames - 1	4
`0x40A00000`	5	number of frames	total number of frames in movie/sprite/thread	4
`0x40C00000`	6	alpha	alpha value in percent (50 — NOT 0.5 — means half transparent)	4
`0x40E00000`	7	visibility	whether the object is visible	4
`0x41000000`	8	width	maximum width of the object (scales the object to that width)	4
`0x41100000`	9	height	maximum height of the object (scales the object to that height)	4
`0x41200000`	10	rotation	rotation angle in degrees	4
`0x41300000`	11	target	return the name (full path) of an object; this can be viewed as a reference to that object	4
`0x41400000`	12	frames loaded	number of frames already loaded	4
`0x41500000`	13	name	name of the object	4
`0x41600000`	14	drop target	object over which this object was last dropped	4
`0x41700000`	15	url	URL linked to that object	4
`0x41800000`	16	high quality	whether we are in high quality mode	4
`0x41880000`	17	show focus rectangle	whether the focus rectangle is visible	4
`0x41900000`	18	sound buffer time	position (or pointer) in the sound buffer; useful to synchronize the graphics to the music	4
`0x41980000`	19	quality	what the quality is (0 - Low, 1 - Medium or 2 - High)	5
`0x41A00000`	20	x mouse	current horizontal position of the mouse pointer within the Flash window	5
`0x41A80000`	21	y mouse	current vertical position of the mouse pointer within the Flash window	5
`0x46800000`	16384	clone	this flag has to do with the depth of sprites being duplicated	4

Declare Function (V7)

Alexis Wilke — Sat, 26 Dec 2009 08:08:05 +0000

SWF Action

Action Category:

Control

Action Details:

(256 variables)

Action Identifier:

142

Action Structure:

string		f_name;
unsigned short		f_arg_count;
unsigned char		f_reg_count;
unsigned short		f_declare_function2_reserved : 7;
unsigned short		f_preload_global : 1;
unsigned short		f_preload_parent : 1;
unsigned short		f_preload_root : 1;
unsigned short		f_suppress_super : 1;
unsigned short		f_preload_super : 1;
unsigned short		f_suppress_arguments : 1;
unsigned short		f_preload_arguments : 1;
unsigned short		f_suppress_this : 1;
unsigned short		f_preload_this : 1;
swf_params		f_params[f_arg_count];
unsigned short		f_function_length;

WARNING: the preload/suppress flags are defined on a short and thus the bytes in a Flash file will look swapped.

Action Length:

-1 byte(s)

Action Stack:

n.a.

Action Operation:

create a function on the current target

Action Flash Version:

DefineFont2

Alexis Wilke — Wed, 16 Dec 2009 09:30:54 +0000

Tag Info

Tag Number:

Tag Type:

Define

Tag Flash Version:

Tag Structure:

struct swf_definefont2 {
	swf_tag			f_tag;		/* 48 or 75 */
	unsigned short		f_font2_id;
	unsigned		f_font2_has_layout : 1;
	if(version >= 6) {
		unsigned	f_font2_reserved : 1;
		if(version >= 7) {
			unsigned	f_font2_small_text : 1;
		}
		unsigned	f_font2_reserved : 1;
	}
	else {
		unsigned	f_font2_shiftjis : 1;
		unsigned	f_font2_unicode : 1;
		unsigned	f_font2_ansii : 1;
	}
	unsigned		f_font2_wide_offsets : 1;
	unsigned		f_font2_wide : 1;	/* always 1 in v6.x+ */
	unsigned		f_font2_italic : 1;
	unsigned		f_font2_bold : 1;
	if(version >= 6) {
		unsigned char	f_font2_language;
	}
	else {
		unsigned char	f_font2_reserved;
	}
	unsigned char		f_font2_name_length;
	unsigned char		f_font2_name[f_font2_name_length];
	unsigned short		f_font2_glyphs_count;
	if(f_font2_wide_offsets) {
		unsigned long		f_font2_offsets[f_font2_glyphs_count];
		unsigned long		f_font2_map_offset;
	}
	else {
		unsigned short		f_font2_offsets[f_font2_glyphs_count];
		unsigned short		f_font2_map_offset;
	}
	swf_shape		f_font2_shapes[f_font2_glyphs_count];
	if(f_font_info_wide) {
		unsigned short		f_font2_map[f_font2_glyphs_count];
	}
	else {
		unsigned char		f_font2_map[f_font2_glyphs_count];
	}
	if(f_font2_has_layout) {
		signed short		f_font2_ascent;
		signed short		f_font2_descent;
		signed short		f_font2_leading_height;
		signed short		f_font2_advance[f_font2_glyphs_count];
		swf_rect		f_font2_bounds[f_font2_glyphs_count];
		signed short		f_font2_kerning_count;
		swf_kerning		f_font2_kerning[f_font2_kerning_count];
	}
};
/* DefineFont3 is the same as DefineFont2 */
typedef struct swf_definefont2 swf_definefont3;

It is common to use the DefineFont2 tag in order to create an array of shapes later re-used to draw strings of text on the screen. This tag must be used whenever a DefineEditText references a font; and in that case it is suggested you include a full description of the font with layouts.

Appendix B — History of the SSWF reference

Alexis Wilke — Sun, 13 Dec 2009 09:04:57 +0000

Dec 2, 2009

Moved the monolithic documentation to a multi-page hierarchical document that includes everything we had before plus many links, many terms attached to all pages (tags, English words.) And revision of most of the text for better English and clarification in some places.

Strengthen the formatting with CCK fields so all declarations look alike.

Broken up the actions from one large table to a set of pages.

SWF Button (swf_button)

Alexis Wilke — Sun, 13 Dec 2009 05:36:06 +0000

SWF Structure Info

Tag Flash Version:

SWF Structure:

struct swf_button {
	char align;
	unsigned		f_button_reserved : 2;
	if(version >= 8) {
		unsigned		f_button_blend_mode : 1;
		unsigned		f_button_filter_list : 1;
	}
	else {
		unsigned		f_button_reserved : 2;
	}
	unsigned		f_button_state_hit_test : 1;
	unsigned		f_button_state_down : 1;
	unsigned		f_button_state_over : 1;
	unsigned		f_button_state_up : 1;
	if(any f_button_state_... != 0) {
		unsigned short		f_button_id_ref;
		unsigned short		f_button_layer;
		swf_matrix		f_matrix;
		if(f_tag == DefineButton2) {
			swf_color_transform		f_color_transform;
		}
		if(f_button_filter_list) {
			unsigned char		f_filter_count;
			swf_any_filter		f_filter;
		}
		if(f_button_blend_mode) {
			unsigned char		f_blend_mode;
		}
	}
};

A button structure defines a state and a corresponding shape reference. The shape will be affected by the specified matrix whenever used.

There are many acceptable combinations. The object which is referenced is drawn when its state matches the current state of the button. If only the f_button_state_hit_test is set, then the shape is always displayed.

SWF Action 3 (swf_action3)

Alexis Wilke — Sun, 13 Dec 2009 05:21:28 +0000

SWF Structure Info

Tag Flash Version:

SWF Structure:

Not documented here yet.

Since Flash version 9, actions can be saved in a new format named abcFormat by the Tamarin project from the Mozilla organization.

The code itself (action script) is the same, but the structure of an swf_action3 holds object oriented information about classes, methods and such in a really clean way (really! in comparison to the old way, that's dead clean!).

SWF Any Filter (swf_any_filter)

Alexis Wilke — Sun, 13 Dec 2009 04:32:03 +0000

SWF Structure Info

Tag Flash Version:

SWF Structure:

/* the filter type */
struct swf_filter_type {
	unsigned char	f_type;
};

struct swf_filter_glow {
	swf_filter_type	f_type;		/* 0, 2, 3, 4 or 7 */
	if(f_type == GradientGlow || f_type == GradientBevel) {
		unsigned char		f_count;
	}
	else {
		f_count = 1;
	}
	swf_rgba		f_rgba[f_count];
	if(f_type == Bevel) {
		swf_rgba		f_highlight_rgba[f_count];
	}
	if(f_type == GradientGlow || f_type == GradientBevel) {
		unsigned char		f_position[f_count];
	}
	signed long fixed	f_blur_horizontal;
	signed long fixed	f_blur_vertical;
	if(f_type != Glow) {
		signed long fixed	f_radian_angle;
		signed long fixed	f_distance;
	}
	signed short fixed	f_strength;
	unsigned		f_inner_shadow : 1;
	unsigned		f_knock_out : 1;
	unsigned		f_composite_source : 1;
	if(f_type == Bevel) {
		unsigned		f_on_top : 1;
	}
	else {
		unsigned		f_reserved : 1;
	}
	if(f_type == GradientGlow || f_type == GradientBevel) {
		unsigned		f_passes : 4;
	}
	else {
		unsigned		f_reserved : 4;
	}
};

struct swf_filter_blur {
	swf_filter_type		f_type;	/* 1 */
	unsigned long fixed	f_blur_horizontal;
	unsigned long fixed	f_blur_vertical;
	unsigned		f_passes : 5;
	unsigned		f_reserved : 3;
};

struct swf_filter_convolution {
	swf_filter_type	f_type;		/* 5 */
	unsigned char	f_columns;
	unsigned char	f_rows;
	long float	f_divisor;
	long float	f_bias;
	long float	f_weights[f_columns × f_rows];
	swf_rgba	f_default_color;
	unsigned	f_reserved : 6;
	unsigned	f_clamp : 1;
	unsigned	f_preserve_alpha : 1;
};

struct swf_filter_colormatrix {
	swf_filter_type	f_type;		/* 6 */
	long float	f_matrix[20];
};

struct swf_any_filter {
	swf_filter_type			f_fitler_type;
	swf_filter_blur			f_filter_blur;
	swf_filter_colormatrix		f_filter_colormatrix;
	swf_filter_convolution		f_filter_convolution;
	swf_filter_glow			f_filter_glow;
};

A filter defines how to transform the objects it is attached to. The first byte is the filter type. The data following depend on the type. Because each filter is much different, they are defined in separate structures. You can attach a filter to an object using an ActionScript or the PlaceObject3 tag.

The following describes the different filters available since version 8.

SWF Gradient (swf_gradient)

Alexis Wilke — Sun, 13 Dec 2009 02:32:10 +0000

SWF Structure Info

Tag Flash Version:

SWF Structure:

struct swf_gradient {
	if(tag == DefineShape4) {
		unsigned		f_spread_mode : 2;
		unsigned		f_interpolation_mode : 2;
		unsigned		f_count : 4;
	}
	else {
		unsigned		f_pad : 4;
		unsigned		f_count : 4;
	}
	swf_gradient_record	f_gradient_record[f_count];
	/* f_type is defined in the swf_fill_style encompassing this gradient */
	if(f_type == 0x13) {
		signed short fixed	f_focal_point;
	}
};

This structure defines a gradient. This is a set of colors which are used to define an image with colors smoothly varying from one color to the next. The gradient can be radial (circular) or linear (rectangular).

The f_count field is limited depending on the tag used and the version of SWF as defined below: