| 摘要 |
A data conversion apparatus for converting index data to real data and an image generation apparatus for converting index texture data to real texture data by the data conversion to make it possible to suitably carry out texture mapping. A data conversion apparatus comprises a first memory and a second memory each for storing data having a n bit width and in which any data is stored, an address detecting means for detecting addresses of the first memory and the second memory based on input data, a data reading means for reading data stored at the detected addresses of the first memory and the second memory, a first data selecting means for selecting either of the data read from the first memory or the data read from the second memory, a data extending means for extending the selected data to data having a 2xn bits width, and a second data selecting means for selecting either of the first data formed by connecting the data output from the first memory and the data output from the second memory or the second data of the extended data.
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