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.	0.10.0
love.graphics.newScreenshot	Creates a screenshot and returns the ImageData.		11.0
love.image.newImageData	Creates a new ImageData object.

Functions

Data:clone	Creates a new copy of the Data object.	11.0
Data:getFFIPointer	Gets an FFI pointer to the Data.	11.3
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.	0.9.0
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.	0.9.0
ImageData:getFormat	Gets the pixel format of the ImageData.	11.0
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.		0.9.0
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.	11.0
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.

Note that versions 0.8.0 and newer will automatically pad graphics Images so you don't have to.

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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