Microsoft Technology Licensing, LLC

Jeffrey Ryan Bloomfield

Anthony John Rolls Hodsdon

David Foster Spruill

Nicholas Defay Feeney

Michael Dean Stokes

Stephen Proteau

Anthony Presley

Michael Bourgoin

Marilyn Chen

Michael Vincent Oneppo

Michael Vincent Onepro

A touch input is received on the touchscreen. The touch input comprises a stroke and is associated with variable opacity. The stroke is converted to a plurality of segments. The plurality of segments comprises a plurality of arc segments, line segments, or a combination. A plurality of stamps is generated corresponding to the plurality segments. Shading is applied to the stroke, where applying shading comprises varying at least one of a weight or an offset of at least one color associated with at least one pixel of at least one stamp of the plurality of stamps. The plurality of stamps is rendered on the touchscreen of the device to represent the stroke.

Shading for variable opacity stroke rendering

Methods, systems, and devices are described herein for rendering and blending variable opacity ink strokes on a touchscreen device. In one aspect, blending variable opacity ink strokes may include receiving a touch input including a stroke associated with variable opacity, and converting the stroke to a plurality of segments, including arc segments, line segments, or a combination thereof. Next, a plurality of stamps corresponding to the plurality segments may be generated and combined with a static texture and a varying texture. The plurality of stamps may be rendered on the touchscreen of the device to represent the stroke. In another aspect, the received stroke may at least partially overlap other visual data. In this case, the stamps associated with the stroke may be blended with the other visual data using source-over blending The blended plurality of stamps may be rendered on the touchscreen of the device to represent the stroke.

Multiple texture variable opacity stroke rendering and blending

Methods, systems, and devices are described herein for rendering variable opacity ink strokes on a touchscreen device. In one aspect, a method for rendering variable opacity ink strokes includes receiving a touch input including a stroke associated with variable opacity on a touchscreen of a device. The stroke may be converted to at least one Bezier curve. The at least one Bezier curve may be smoothed and dividing into a plurality of segments, wherein the plurality of segments includes arc segments, line segments, or a combination thereof. A plurality of stamps may be generated corresponding to the plurality of segments. The plurality of stamps may be rendered on the touchscreen of the device to represent the stroke.

GPU-accelerated pencil ink effect rendering

Methods are provided for reordering operations in execution of an effect graph by graphics processing unit. Memory availability is evaluated for storing images rendered using the effect graph. Memory is allocated for multiple parallel intermediate textures that store images. Operations that write to these textures are executed. It is then determined that there is not sufficient memory to perform additional parallel operations. The memory currently allocated is flushed, and memory for an upper-level texture is allocated. The operations that write pixels to the upper-level texture are executed.

Reordering graph execution for processing optimization

In various embodiments, systems and methods are provided for using an expanded image format to facilitate image transformations. The expanded image format can include at least a first set of boundaries and a second set of boundaries. The first set of boundaries corresponds to the image for transform, while the second set of boundaries provide a region beyond the image that can assist a graphics processing unit with performing a transform. Optionally, the expanded information can also include pixel value information for pixels in the region between the image boundary and the overboundary.

Image processing using bounds adjustment

A color engine supports extensibility by allowing plug-ins. The color engine transforms an image file associated with a source device for consumption by a destination device. Within the color engine, a device model operates over a device model profile to generate a gamut boundary shell, which describes the range of colors a device is capable of producing. A color appearance model operates over a color appearance model profile to compensate for external viewing conditions. A gamut map model accepts as input gamut boundary shells describing the source device and the destination device, and operates over a gamut map model profile to generate a transform, which is used to transform the image file for consumption by the destination device. The device model profiles and gamut map model profiles may be extended using XML plug-ins, and the device models and gamut map models may be extended using DLL plug-ins.

Extensible system for color management

Techniques relating to gamuts and gamut mapping are described. In one instance, a process identifies a gamut attribute and generates a gamut having the attribute.

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Redmond, WA, United States of America

Jeffrey Ryan Bloomfield