Line 285:
Line 285:
|-
|-
| 3
| 3
−
| When set, the input framebuffer data is copied as-is to the output framebuffer, without any kind of conversions. The data is truncated to the output size.
+
| Uses a TextureCopy mode transfer. All other bits in this register seem to be ignored when this is set.
|-
|-
| 4
| 4
Line 291:
Line 291:
|-
|-
| 5
| 5
−
| Writable, but purpose unknown (usually zero)
+
| Don't perform tiled-linear conversion. Incompatible with bit 1, so only tiled-tiled transfers can be done, not linear-linear.
|-
|-
| 7-6
| 7-6
Line 309:
Line 309:
|-
|-
| 16
| 16
−
| Unknown, normally zero.
+
| Use some kind of 32x32 block swizzling mode, instead of the usual 8x8 one.
|-
|-
| 17-23
| 17-23
| Not writable
| Not writable
|-
|-
−
| 24
+
| 24-25
−
| Scale down the input image to its half width using a box filter.
+
| Scale down the input image using a box filter. 0 = No downscale, 1 = 2x1 downscale. 2 = 2x2 downscale, 3 = invalid
−
|-
−
| 25
−
| Scale down the input image to its half height and half width using a box filter.
|-
|-
| 31-26
| 31-26