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"Scanline" Image Scalers

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@jdgleaver jdgleaver released this 19 Sep 14:48
· 30 commits to master since this release

This release adds three new image scaling methods to the RG350M build:

  • Hardware (Scan Vert.): Identical to Hardware (x2), but with vertical scanlines

  • Hardware (Scan Horz.): Identical to Hardware (x2), but with horizontal scanlines

  • Hardware (Grid): Identical to Hardware (x2), but with a simple LCD grid effect

Note that the scanlines are rather subtle - we are limited to a 640x480 display, and simply don't have enough pixels to do anything more sophisticated while maintaining any semblance of even scanline spacing.

In addition: I have received reports that the Hardware (x2) option causes crashes on RG350 devices (apparently the hardware scaler on these cannot downscale an image that is higher than the native resolution of 320x240). I have therefore prepared two separate builds:

  • regba_rg350m.opk is the full-fat version for the RG350M

  • regba_rg350.opk is a cut down version for the RG350, which includes colour correction/interframe blending/controller improvements, but omits all hardware x2/scanline image scalers