enum Vips.DemandStyle

Seevips_image_pipelinev(). Operations can hintthe kind of demand geometry they preferto theVIPS imageIO system.

These demand styles are given below in order of increasingspecialisation. When demanding output from a pipeline,vips_image_generate()will use the most general style requested by the operationsin the pipeline.

VIPS_DEMAND_STYLE_SMALLTILE — This is the most general demand format.Output is demanded in small (around 100x100 pel) sections. This style worksreasonably efficiently, even for bizarre operations like 45 degree rotate.

VIPS_DEMAND_STYLE_FATSTRIP — This operation would like to output stripsthe width of the image and as high as possible. This option is suitablefor area operations which do not violently transform coordinates, suchasvips_conv().

VIPS_DEMAND_STYLE_THINSTRIP — This operation would like to output stripsthe width of the image and a few pels high. This option is suitable forpoint-to-point operations, such as those in the arithmetic package.

VIPS_DEMAND_STYLE_ANY — This image is not being demand-read from a discfile (even indirectly) so any demand style isOK. It’s used for things likevips_black() where the pixels are calculated.

VIPS_DEMAND_STYLE_ERROR

No description available.

• Value:-1
• Available since: 8.0

VIPS_DEMAND_STYLE_SMALLTILE

Demand in small (typically 128x128 pixel) tiles.

• Value:0
• Available since: 8.0

VIPS_DEMAND_STYLE_FATSTRIP

Demand in fat (typically 16 pixel high) strips.

• Value:1
• Available since: 8.0

VIPS_DEMAND_STYLE_THINSTRIP

Demand in thin (typically 1 pixel high) strips.

• Value:2
• Available since: 8.0

VIPS_DEMAND_STYLE_ANY

Demand geometry does not matter.

• Value:3
• Available since: 8.0