International Business Machines Corporation

Marc Leslie Cohen

Michael Richard Cooper

Scott Thomas Jones

Mark Wayne VanderWiele

Patrick Edward Nogay

Mark Joseph Hamzy

James Edward Christensen

Carol Ann Jones

Dennis D King

Scott Michael Consolatti

Ravi Ravisankar

Kenneth W Christopher, Jr

Lee Martin Tartak

Mark Wayne Vander Wiele

Paul G Giangarra

The present invention provides a method and apparatus in a data processing system for printing characters. Data received includes glyphs for output on an output device, wherein the glyphs are to be output using a selected device font. Monitoring for unsupported glyphs in the selected device font is performed. In response to detecting a glyph unsupported by the selected device font, a back up system font is used to output the glyph to the output device.

Method and apparatus for providing backup font support for missing device glyphs

A method and apparatus in a data processing system for performing a raster operation of graphics data. A system memory and a video memory is included in the data processing system. The system memory and the video memory are connected by a bus wherein the graphics data is organized into picture elements. A plurality of picture elements is read from the system memory. A plurality of picture elements is read from the video memory. A raster operation is performed on the plurality of picture elements to form a plurality of processed picture elements. The plurality of processed picture elements is written to the video memory.

Method and apparatus for performing raster operations in a data processing system

A method and apparatus in a data processing system for generating a metadata stream. Calls are received calls from an application, wherein the calls are received calls. The current application attributes in the received calls are tracked. The received calls are monitored for a new page call. When a new page call is identified in the received calls, the new page call is placed within the metadata stream to identify a new page in the metadata stream. Current application attributes are placed in the metadata stream within the new page identified by the new page call, wherein the new page within the metadata stream may be outputted/printed or reprocessed using the current application attributes located within new page.

Method and apparatus in a data processing system for generating metadata streams with per page data

A method and apparatus in a data processing system for generating a metadata stream. An attribute call is received to set an attribute. In response, a first database is queried to determine whether the attribute call is present in the first database. The first database is updated in response to the attribute call being absent in the first database. In response to receiving a primitive call, an attribute call associated with the primitive is retrieved from the first database. A determination is made as to whether the attribute call associated with the primitive is present in a second database. The second database is; updated to include the attribute call associated with the primitive call in response to the attribute call associated with the primitive call being absent in the second database. The attribute call associated with the primitive call and the primitive call is placed in the metadata stream.

Method and apparatus for compacting a metadatas stream in a data processing system

The present invention provides a method and apparatus in a data processing system for printing characters. Data received include glyphs for output on an output device, wherein the glyphs are to be output using a selected device font. A list containing all device font supported glyphs is passed to the operating system. Monitoring for unsupported glyphs in the selected device font is performed by the operating system. In response to detecting a glyph unsupported by the selected device font, a backup system font is used to output the glyph to the output device.

Method and apparatus for system enhancement to device backup font support

The invention provides a system and method which enable programs written in procedural languages to respond reactively to messages from event driven interfaces. An interface is provided between programs or window procedures written in procedural languages and the standard message queues of a standard event driven user interface, operating system and graphic engine. The interface pulls messages intended for the programs off of the queues and then forwards them to the appropriate program upon receipt of a call from the program.

System and method for enabling an event driven interface to a procedural

A method and apparatus for evaluating software application performance utilizing a compiler application. An evaluation function is created which may be utilized to track and store software application execution information at each invocation thereof. A software application to be evaluated is compiled utilizing a compiler application which inserts at least one prelude routine command during compiling which is utilized to invoke the prelude routine upon each entry to a procedure within the software application. A command invoking the evaluation function is inserted into the prelude routine such that each entry to a procedure within the, software application under evaluation will result in the storage of execution information at that point. In the depicted embodiment of the present invention execution information at each exit from a procedure within the software application is also tracked and stored by invoking the evaluation function automatically prior to returning from a current procedure.

Growing community of inventors

Austin, TX, United States of America

Marc Leslie Cohen