Abstract:
Embodiments of a system and method including graphics processing of a pixel sample are described. According to an embodiment, a first depth test processes a value, such as a z/stencil value, of a pixel sample and determines whether the value of the pixel sample satisfies the first depth test. If the value of the pixel sample satisfies the first depth test, the value of the pixel sample is not immediately written to storage, such as a Z-buffer. That is, if the value of the pixel sample satisfies the first depth test, the depth processing logic prevents or delays a write operation for the value of the pixel sample to storage at that time. A second depth test is performed on the value of the pixel sample if the value of the pixel sample satisfied the first depth test. If the value of the pixel sample satisfies the second depth test, the value of the pixel sample is then written to storage.
Abstract:
Methods and systems are provided for mapping a memory instruction to a shared memory address space in a computer arrangement having a CPU and an APD. A method includes receiving a memory instruction that refers to an address in the shared memory address space, mapping the memory instruction based on the address to a memory resource associated with either the CPU or the APD, and performing the memory instruction based on the mapping.
Abstract:
Embodiments of the present invention provides for the execution of threads and/or workitems on multiple processors of a heterogeneous computing system in a manner that they can share data correctly and efficiently. Disclosed method, system, and article of manufacture embodiments include, responsive to an instruction from a sequence of instructions of a work-item, determining an ordering of visibility to other work-items of one or more other data items in relation to a particular data item, and performing at least one cache operation upon at least one of the particular data item or the other data items present in any one or more cache memories in accordance with the determined ordering. The semantics of the instruction includes a memory operation upon the particular data item.
Abstract:
A cylinder block for an internal combustion engine which, in use, supports a rotary crankshaft 40, the block having pairs of opposed lock width surfaces 37 formed thereon for forming an interference fit with respective co-operating lock width surfaces 38 on the crankshaft bearing caps 34 which in use are secured to respective bearing cap support surfaces 36 also formed on the block 31. The lock width surfaces 37, 38 are spaced from the respective bearing cap support surfaces 36 so as to improve stress cracking resistance of the block 31.
Abstract:
A method and system for processing a graphics frame in a multi-processor computing environment are described. Embodiments of the present invention enable the reduction of the memory footprint required for processing a graphics frame in a multi-processor system. In one embodiment a method of processing a graphics frame using a plurality of processors is presented. The method includes determining a respective assignment of tiles of the graphics frame to each processor of the plurality of processors; allocating a memory area in a local memory of each processor, where the size of the allocated memory area substantially corresponds to the aggregate size of tiles assigned to the respective processor; and storing the tiles of the respective assignment of tiles in the memory area of each respective processor.
Abstract:
Based on a driver programmable stencil reference value command, stencil reference value logic produces a plurality of stencil reference values for a corresponding plurality of pixels or pixel samples. At least one of the plurality of stencil reference values has a different value than at least one other of the plurality of stencil reference values. The driver programmable stencil reference value command may include a reference to instruction data or instruction data itself such that the graphics processing logic produces the plurality of stencil reference values based on the instruction data. Stencil logic performs a stencil test on the produced plurality of stencil reference values with respect to or without reference to a previously produced plurality of stencil values. Stencil logic performs stencil operations based on the result of the stencil test.
Abstract:
A cylinder block for an internal combustion engine which, in use, supports a rotary crankshaft 40, the block having pairs of opposed lock width surfaces 37 formed thereon for forming an interference fit with respective co-operating lock width surfaces 38 on the crankshaft bearing caps 34 which in use are secured to respective bearing cap support surfaces 36 also formed on the block 31. The lock width surfaces 37, 38 are spaced from the respective bearing cap support surfaces 36 so as to improve stress cracking resistance of the block 31.
Abstract:
A balance weight has a body having a cavity formed therein, a solid weight member substantially filling the cavity of the body; and an adhesive formed on a side of the body for securing the balance weight to an associated object to be balanced. A balance weight can be secured to a tire and weight assembly and has a solid body formed entirely of plastic material, wherein the body is secured to the tire and wheel assembly via an adhesive layer on one side of the body. The body can have an internal cavity formed within the body and a weight member made of metal which substantially fills the internal cavity.
Abstract:
A configurable buffer has two storage areas. Depending upon a state of a buffer control signal, the two storage areas are configured to buffer a single stream of data together or to buffer two streams of data separately. In an exemplary video graphics processing application, one stream of data includes pass-through values of fragments being rendered (e.g. color, location, and/or depth values) and the other stream of data includes corresponding displaced (or otherwise perturbed) texture coordinate pairs. Such a buffer may be used to reduce the amount of buffer storage needed to support both single-pass and multipass operations in a pixel pipeline.
Abstract:
Embodiments of the present invention enable the reduction of the memory bandwidth required for graphics rendering. According to an embodiment, a method to render a pixel from a compressed anti-aliased image includes: accessing metadata for the pixel, where the metadata includes entries for respective samples generated by multisampling the pixel; and retrieving a subset of said samples based upon the metadata, wherein the subset is stored in the compressed anti-aliased image stored in a memory.