private extern class NativeDoubleArray

matrix :: NativeDoubleArray

Specialized native structure to store matrix items and avoid boxing cost

Introduced properties

private fun [](i: Int): Float

matrix :: NativeDoubleArray :: []

private fun []=(i: Int, value: Float)

matrix :: NativeDoubleArray :: []=

private fun hash_items(len: Int): Int

matrix :: NativeDoubleArray :: hash_items

private fun mat4_set(f0: Float, f1: Float, f2: Float, f3: Float, f4: Float, f5: Float, f6: Float, f7: Float, f8: Float, f9: Float, f10: Float, f11: Float, f12: Float, f13: Float, f14: Float, f15: Float)

matrix :: NativeDoubleArray :: mat4_set

private fun mul(a: NativeDoubleArray, b: NativeDoubleArray, a_width: Int, a_height: Int, b_width: Int)

matrix :: NativeDoubleArray :: mul

private init new(size: Int): NativeDoubleArray

matrix :: NativeDoubleArray :: new

Redefined properties

redef type SELF: NativeDoubleArray

matrix $ NativeDoubleArray :: SELF

Type of this instance, automatically specialized in every class

All properties

fun !=(other: nullable Object): Bool

core :: Object :: !=

Have self and other different values?
fun ==(other: nullable Object): Bool

core :: Object :: ==

Have self and other the same value?
type CLASS: Class[SELF]

core :: Object :: CLASS

The type of the class of self.
type SELF: Object

core :: Object :: SELF

Type of this instance, automatically specialized in every class
private fun [](i: Int): Float

matrix :: NativeDoubleArray :: []

private fun []=(i: Int, value: Float)

matrix :: NativeDoubleArray :: []=

fun address_is_null: Bool

core :: Pointer :: address_is_null

Is the address behind this Object at NULL?
protected fun class_factory(name: String): CLASS

core :: Object :: class_factory

Implementation used by get_class to create the specific class.
fun class_name: String

core :: Object :: class_name

The class name of the object.
fun free

core :: Pointer :: free

Free the memory pointed by this pointer
fun get_class: CLASS

core :: Object :: get_class

The meta-object representing the dynamic type of self.
fun hash: Int

core :: Object :: hash

The hash code of the object.
private fun hash_items(len: Int): Int

matrix :: NativeDoubleArray :: hash_items

init init

core :: Object :: init

fun inspect: String

core :: Object :: inspect

Developer readable representation of self.
protected fun inspect_head: String

core :: Object :: inspect_head

Return "CLASSNAME:#OBJECTID".
intern fun is_same_instance(other: nullable Object): Bool

core :: Object :: is_same_instance

Return true if self and other are the same instance (i.e. same identity).
fun is_same_serialized(other: nullable Object): Bool

core :: Object :: is_same_serialized

Is self the same as other in a serialization context?
intern fun is_same_type(other: Object): Bool

core :: Object :: is_same_type

Return true if self and other have the same dynamic type.
private fun mat4_set(f0: Float, f1: Float, f2: Float, f3: Float, f4: Float, f5: Float, f6: Float, f7: Float, f8: Float, f9: Float, f10: Float, f11: Float, f12: Float, f13: Float, f14: Float, f15: Float)

matrix :: NativeDoubleArray :: mat4_set

private fun mul(a: NativeDoubleArray, b: NativeDoubleArray, a_width: Int, a_height: Int, b_width: Int)

matrix :: NativeDoubleArray :: mul

private intern fun native_class_name: CString

core :: Object :: native_class_name

The class name of the object in CString format.
private fun native_equals(o: Pointer): Bool

core :: Pointer :: native_equals

private init new(size: Int): NativeDoubleArray

matrix :: NativeDoubleArray :: new

init nul: Pointer

core :: Pointer :: nul

C NULL pointer
intern fun object_id: Int

core :: Object :: object_id

An internal hash code for the object based on its identity.
fun output

core :: Object :: output

Display self on stdout (debug only).
intern fun output_class_name

core :: Object :: output_class_name

Display class name on stdout (debug only).
private fun premultiply_alpha(width: Int, height: Int)

core :: Pointer :: premultiply_alpha

Multiply RGB values by their alpha value
fun serialization_hash: Int

core :: Object :: serialization_hash

Hash value use for serialization
intern fun sys: Sys

core :: Object :: sys

Return the global sys object, the only instance of the Sys class.
abstract fun to_jvalue(env: JniEnv): JValue

core :: Object :: to_jvalue

fun to_s: String

core :: Object :: to_s

User readable representation of self.
package_diagram matrix::matrix::NativeDoubleArray NativeDoubleArray core::Pointer Pointer matrix::matrix::NativeDoubleArray->core::Pointer core::Object Object core::Pointer->core::Object ...core::Object ... ...core::Object->core::Object

Ancestors

interface Object

core :: Object

The root of the class hierarchy.

Parents

extern class Pointer

core :: Pointer

Pointer classes are used to manipulate extern C structures.

Class definitions

matrix $ NativeDoubleArray 
# Specialized native structure to store matrix items and avoid boxing cost
private extern class NativeDoubleArray `{ double* `}

	new(size: Int) do
		var sizeof_double = 8
		var buf = new CString(sizeof_double*size)
		return new NativeDoubleArray.in_buffer(buf)
	end

	new in_buffer(buffer: CString) `{ return (double*)buffer; `}

	fun [](i: Int): Float `{ return self[i]; `}

	fun []=(i: Int, value: Float) `{ self[i] = value; `}

	fun equal_items(other: NativeDoubleArray, len: Int): Bool `{
		int i;
		for (i = 0; i < len; i ++)
			if (self[i] != other[i])
				return 0;
		return 1;
	`}

	fun hash_items(len: Int): Int `{
		// Adapted from `SequenceRead::hash`
		long r = 17+len;
		int i;
		for (i = 0; i < len; i ++)
			r = r * 3 / 2 + (long)(i*1024.0);
		return r;
	`}

	fun mul(a, b: NativeDoubleArray, a_width, a_height, b_width: Int) `{
		int i, j, k;
		for (j = 0; j < a_height; j ++)
			for (i = 0; i < b_width; i ++) {
				float sum = 0.0;
				for (k = 0; k < a_width; k ++) sum += a[j*a_width + k] * b[k*b_width + i];
				self[j*b_width + i] = sum;
			}
	`}
end
lib/matrix/matrix.nit:301,1--342,3

matrix :: projection $ NativeDoubleArray 
redef class NativeDoubleArray
	fun mat4_set(f0, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15: Float) `{
		self[ 0] =  f0;
		self[ 1] =  f1;
		self[ 2] =  f2;
		self[ 3] =  f3;

		self[ 4] =  f4;
		self[ 5] =  f5;
		self[ 6] =  f6;
		self[ 7] =  f7;

		self[ 8] =  f8;
		self[ 9] =  f9;
		self[10] = f10;
		self[11] = f11;

		self[12] = f12;
		self[13] = f13;
		self[14] = f14;
		self[15] = f15;
	`}
end
lib/matrix/projection.nit:197,1--219,3
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