
7.10 Dual Display ................................................................................................................................75
8. Video Capture
8.1 Video Capture function..................................................................................................................77
8.1.1 Input data Formats..................................................................................................................77
8.1.2 Capturing of Video Signal .......................................................................................................77
8.1.3 Non-interlace Transformation..................................................................................................77
8.2 Video Buffer...................................................................................................................................78
8.2.1 Data Form ...............................................................................................................................78
8.2.2 Synchronous Control...............................................................................................................78
8.2.3 Area Allocation.........................................................................................................................78
8.2.4 Window Display.......................................................................................................................79
8.2.5 Interlace Display......................................................................................................................79
8.3 Scaling...........................................................................................................................................80
8.3.1 Down-scaling Function............................................................................................................80
8.3.2 Up-scaling Function ................................................................................................................80
8.3.2 Flow of image processing .......................................................................................................82
8.4 Error handling................................................................................................................................85
8.4.1 Error detect function................................................................................................................85
8.5 External video signal input conditions...........................................................................................86
8.5.1 RTB656 YUV422 input format.................................................................................................86
8.5.2 RGB input format.....................................................................................................................88
9. GEOMETRY ENGINE
9.1 Geometry Pipeline........................................................................................................................94
9.1.1 Processing flow......................................................................................................................94
9.1.2 Model-view projection (MVP) transformation (OC
→
CC coordinate transformation).............95
9.1.3 3D-2D transformation (CC
→
NDC coordinate transformation)...............................................95
9.1.4 View port transformation (NDC
→
DC coordinate transformation)..........................................96
9.1.5 View volume clipping..............................................................................................................96
9.1.6 Back face culling ....................................................................................................................98
9.2 Data Format..................................................................................................................................99
9.2.1 Data format.............................................................................................................................99
9.3 Setup Engine..............................................................................................................................100
9.3.1 Setup processing .................................................................................................................100
9.4 Log Output of Device Coordinates .............................................................................................100
9.4.1 Log output mode ..................................................................................................................100
9.4.2 Log output destination address............................................................................................100
10. DRAWING PROCESSING
10.1 Coordinate System...................................................................................................................101
10.1.1 Drawing coordinates ..........................................................................................................101
10.1.2 Texture coordinates............................................................................................................102
10.1.3 Frame buffer.......................................................................................................................102
10.2 Figure Drawing .........................................................................................................................103
10.2.1 Drawing primitives..............................................................................................................103
10.2.2 Polygon drawing function...................................................................................................103
10.2.3 Drawing parameters...........................................................................................................104
10.2.4 Anti-aliasing function ..........................................................................................................105
10.3 Bit Map Processing...................................................................................................................106
10.3.1 BLT.....................................................................................................................................106
10.3.2 Pattern data format.............................................................................................................106
10.4 Texture Mapping.......................................................................................................................107
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