CL-GD546X General Description
The CL-GD546X is the LagunaTM family of pin-compatible, Rambus â-based 2D/3D graphics accelerators. The CL-GD5462, the first family member, provides multi-window video and graphics acceleration with greater-than-VRAM performance at lowerthan- VRAM cost. The follow-on product, the CL-GD5464, offers 3D graphics capability in addition to maintaining the same high level of 2D performance offered by the CL-GD5462.
The 64-bit graphics engine of the CL-GD546X features standard GUI acceleration hardware as well as advanced features such as stretch BLT and video playback scaling. Color-key and chroma-key operations are supported to enable graphics and video to be combined in an efficient manner. The CL-GD546X integrates a 24-bpp palette DAC, clock generators, a full-feature VGA controller, and V-PortTM bus for easy expandability.
CL-GD546X Features
`64-bit graphics engine with integrated 3D game acceleration (CL-GD5464)
- Perspective textures mapping
- Bilinear/trilinear filtering
- Mip mapping
- Lit, copy, decal, and blend textures
- Texture decompression
- Mono rasterization (single-pass lighting)
- Stippling
- Polygon, line, and point drawing
- 16-bit Z-buffer
- Gouraud shading
- Alpha blending, fog, and transparency
- Display list processing for maximum performance
- Hardware page flipping
- Sub-pixel accuracy
`High-performance 64-bit GUI accelerator
- Three-operand BitBLT (bit block transfer)
- Color expansion for 8-, 16-, 24-, and 32-bpp modes
- Stretch BLT
`PCI 2.1-compliant bus master (CL-GD5464)
- DMA maximizes system performance
- Host-rendered/cached texture maps
`AGP (accelerated graphics port) support (CL-GD5465)
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