ImageData

Raw (decoded) image data.

You can't draw ImageData directly to screen. See Image for that.

Constructors

Canvas:newImageData	Generates ImageData from the contents of the Canvas.
love.graphics.newScreenshot	Creates a screenshot and returns the ImageData.
love.image.newImageData	Creates a new ImageData object.

Functions

Data:clone	Creates a new copy of the Data object.
Data:getFFIPointer	Gets an FFI pointer to the Data.
Data:getPointer	Gets a pointer to the Data.
Data:getSize	Gets the Data's size in bytes.
Data:getString	Gets the full Data as a string.
ImageData:encode	Encodes the ImageData to a file format and optionally writes it to the save directory.
ImageData:getDimensions	Gets the width and height of the ImageData in pixels.
ImageData:getFormat	Gets the pixel format of the ImageData.
ImageData:getHeight	Gets the height of the ImageData in pixels.
ImageData:getPixel	Gets the color of a pixel.
ImageData:getString	Gets the full ImageData as a string.
ImageData:getWidth	Gets the width of the ImageData in pixels.
ImageData:mapPixel	Transform an image by applying a function to every pixel.
ImageData:paste	Paste into ImageData from another source ImageData.
ImageData:setPixel	Sets the color of a pixel.
Object:release	Immediately destroys the object's Lua reference.
Object:type	Gets the type of the object as a string.
Object:typeOf	Checks whether an object is of a certain type.

Examples

Images that have dimensions that are not a 2^n will display incorrectly as a white rectangle on some graphics chipsets. This function pads images so they will display correctly.

function newPaddedImage(filename)
	local source = love.image.newImageData(filename)
	local w, h = source:getWidth(), source:getHeight()
	
	-- Find closest power-of-two.
	local wp = math.pow(2, math.ceil(math.log(w)/math.log(2)))
	local hp = math.pow(2, math.ceil(math.log(h)/math.log(2)))
	
	-- Only pad if needed:
	if wp ~= w or hp ~= h then
		local padded = love.image.newImageData(wp, hp)
		padded:paste(source, 0, 0)
		return love.graphics.newImage(padded)
	end
	
	return love.graphics.newImage(source)
end

Supertypes

Data Object

See Also

• love.image
• Image

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