private extern class NativeBitmap

android :: NativeBitmap

An android Bitmap, get an instance using the AssetManager or the ResourceManager

Introduced properties

private fun copy_pixels(pad_to_pow2: nullable Bool, unmultiply: nullable Bool): CByteArray

android :: NativeBitmap :: copy_pixels

Copy the pixel data into a new CByteArray
private fun copy_pixels_to_buffer(buffer: Java_nio_Buffer)

android :: NativeBitmap :: copy_pixels_to_buffer

Copy raw pixel data to buffer
private init from_resources(res: NativeResources, id: Int): NativeBitmap

android :: NativeBitmap :: from_resources

Create a NativeBitmap using a resource ID and the NativeResources
private init from_stream(input_stream: NativeInputStream): NativeBitmap

android :: NativeBitmap :: from_stream

Create a NativeBitmap from a NativeInputStream retrieved with open function of the AssetManager
private init from_stream_ex(input_stream: NativeInputStream, premultiply_alpha: Bool): NativeBitmap

android :: NativeBitmap :: from_stream_ex

Load from input_stream with optional premultiply_alpha
private fun has_alpha: Bool

android :: NativeBitmap :: has_alpha

Does this bitmap has an alpha channel?
private fun height: Int

android :: NativeBitmap :: height

Height in pixels
private fun recycle

android :: NativeBitmap :: recycle

private fun row_bytes: Int

android :: NativeBitmap :: row_bytes

Number of bytes per row
private fun width: Int

android :: NativeBitmap :: width

Width in pixels

Redefined properties

redef type SELF: NativeBitmap

android $ NativeBitmap :: SELF

Type of this instance, automatically specialized in every class
redef fun new_global_ref: SELF

android $ NativeBitmap :: new_global_ref

HACK for bug #845
redef fun pop_from_local_frame_with_env(jni_env: JniEnv): SELF

android $ NativeBitmap :: pop_from_local_frame_with_env

Java implementation of pop_from_local_frame

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
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.
private fun copy_pixels(pad_to_pow2: nullable Bool, unmultiply: nullable Bool): CByteArray

android :: NativeBitmap :: copy_pixels

Copy the pixel data into a new CByteArray
private fun copy_pixels_to_buffer(buffer: Java_nio_Buffer)

android :: NativeBitmap :: copy_pixels_to_buffer

Copy raw pixel data to buffer
fun delete_global_ref

jvm :: JavaObject :: delete_global_ref

Delete this global reference
fun delete_local_ref

jvm :: JavaObject :: delete_local_ref

Delete this local reference
fun free

core :: Pointer :: free

Free the memory pointed by this pointer
private init from_resources(res: NativeResources, id: Int): NativeBitmap

android :: NativeBitmap :: from_resources

Create a NativeBitmap using a resource ID and the NativeResources
private init from_stream(input_stream: NativeInputStream): NativeBitmap

android :: NativeBitmap :: from_stream

Create a NativeBitmap from a NativeInputStream retrieved with open function of the AssetManager
private init from_stream_ex(input_stream: NativeInputStream, premultiply_alpha: Bool): NativeBitmap

android :: NativeBitmap :: from_stream_ex

Load from input_stream with optional premultiply_alpha
fun get_class: CLASS

core :: Object :: get_class

The meta-object representing the dynamic type of self.
private fun has_alpha: Bool

android :: NativeBitmap :: has_alpha

Does this bitmap has an alpha channel?
fun hash: Int

core :: Object :: hash

The hash code of the object.
private fun height: Int

android :: NativeBitmap :: height

Height in pixels
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".
fun is_java_null: Bool

jvm :: JavaObject :: is_java_null

Is self null in Java?
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 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

fun new_global_ref: SELF

jvm :: JavaObject :: new_global_ref

Returns a global reference to the Java object behind this reference
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).
fun pop_from_local_frame: SELF

jvm :: JavaObject :: pop_from_local_frame

Pops the current local reference frame and return a valid reference to self
protected fun pop_from_local_frame_with_env(jni_env: JniEnv): SELF

jvm :: JavaObject :: pop_from_local_frame_with_env

Java implementation of pop_from_local_frame
private fun premultiply_alpha(width: Int, height: Int)

core :: Pointer :: premultiply_alpha

Multiply RGB values by their alpha value
private fun recycle

android :: NativeBitmap :: recycle

private fun row_bytes: Int

android :: NativeBitmap :: row_bytes

Number of bytes per row
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.
fun to_java_string: JavaString

jvm :: JavaObject :: to_java_string

JavaString representation of self using Java's toString
abstract fun to_jvalue(env: JniEnv): JValue

core :: Object :: to_jvalue

fun to_s: String

core :: Object :: to_s

User readable representation of self.
private fun width: Int

android :: NativeBitmap :: width

Width in pixels
package_diagram android::assets_and_resources::NativeBitmap NativeBitmap jvm::JavaObject JavaObject android::assets_and_resources::NativeBitmap->jvm::JavaObject core::Pointer Pointer jvm::JavaObject->core::Pointer ...core::Pointer ... ...core::Pointer->core::Pointer

Ancestors

interface Object

core :: Object

The root of the class hierarchy.
extern class Pointer

core :: Pointer

Pointer classes are used to manipulate extern C structures.

Parents

extern class JavaObject

jvm :: JavaObject

Represens a jni jobject

Class definitions

android $ NativeBitmap 
# An android Bitmap, get an instance using the AssetManager or the ResourceManager
private extern class NativeBitmap in "Java" `{ android.graphics.Bitmap `}
	super JavaObject

	# Create a NativeBitmap from a NativeInputStream retrieved with `open` function of the AssetManager
	# Called by the AssetManager
	new from_stream(input_stream: NativeInputStream) in "Java" `{ return BitmapFactory.decodeStream(input_stream); `}

	# Create a NativeBitmap using a resource ID and the NativeResources
	# Called by the ResourceManager
	new from_resources(res: NativeResources, id: Int) in "Java" `{ return BitmapFactory.decodeResource(res, (int)id); `}

	# Width in pixels
	#
	# Wraps Java: `int android.graphics.Bitmap.getWidth()`
	fun width: Int in "Java" `{ return self.getWidth(); `}

	# Height in pixels
	#
	# Wraps Java: `int android.graphics.Bitmap.getHeight()`
	fun height: Int in "Java" `{ return self.getHeight(); `}

	# Number of bytes per row
	#
	# Wraps Java: `int android.graphics.Bitmap.getRowBytes()`
	fun row_bytes: Int in "Java" `{
		return self.getRowBytes();
	`}

	# Does this bitmap has an alpha channel?
	#
	# Wraps Java: `boolean android.graphics.Bitmap.hasAlpha()`
	fun has_alpha: Bool in "Java" `{
		return self.hasAlpha();
	`}

	fun recycle in "Java" `{
		self.recycle();
	`}

	# HACK for bug #845
	redef fun new_global_ref import sys, Sys.jni_env `{
		Sys sys = NativeBitmap_sys(self);
		JNIEnv *env = Sys_jni_env(sys);
		return (*env)->NewGlobalRef(env, self);
	`}

	redef fun pop_from_local_frame_with_env(jni_env) `{
		return (*jni_env)->PopLocalFrame(jni_env, self);
	`}
end
lib/android/assets_and_resources.nit:294,1--344,3

android :: load_image $ NativeBitmap 
redef extern class NativeBitmap

	# Copy the pixel data into a new `CByteArray`
	#
	# If `pad_to_pow2` the new buffer contains artificial pixels used to make
	# the width and the height powers of 2 for compatibility with older OpenGL.
	#
	# If `unmultiply`, extra work is done to revert the multiplication of color
	# values per the alpha channel applied by the Android system.
	fun copy_pixels(pad_to_pow2, unmultiply: nullable Bool): CByteArray
	do
		var height = height
		var row_bytes = row_bytes
		var bytes = row_bytes * height

		var w2 = width.next_pow(2)
		var h2 = height.next_pow(2)
		var row_bytes2 = row_bytes * w2 / width

		var capacity = bytes
		if pad_to_pow2 == true then capacity = row_bytes2 * h2

		var buf = new CByteArray(capacity)
		var java_buf = buf.to_java_nio_buffer
		copy_pixels_to_buffer java_buf

		if has_alpha and unmultiply == true then buf.native_array.unmultiply(width, height)

		if pad_to_pow2 == true then
			for r in [height-1..0[.step(-1) do
				var src_offset = row_bytes*r
				var dst_offset = row_bytes2*r
				buf.move(dst_offset, src_offset, row_bytes)
			end
		end

		return buf
	end

	# Copy raw pixel data to `buffer`
	#
	# Wraps Java: `void android.graphics.Bitmap.copyPixelsToBuffer(java.nio.Buffer)`
	fun copy_pixels_to_buffer(buffer: Java_nio_Buffer) in "Java" `{
		self.copyPixelsToBuffer(buffer);
	`}
end
lib/android/load_image.nit:29,1--74,3

gamnit :: android19 $ NativeBitmap 
redef class NativeBitmap

	# Load from `input_stream` with optional `premultiply_alpha`
	new from_stream_ex(input_stream: NativeInputStream, premultiply_alpha: Bool) in "Java" `{
		BitmapFactory.Options opts = new BitmapFactory.Options();
		opts.inPremultiplied = premultiply_alpha; // API 19
		return BitmapFactory.decodeStream(input_stream, null, opts);
	`}
end
lib/gamnit/android19.nit:48,1--56,3
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