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"Simplify" HW/SW dithering checks

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Make it a real Document property, updated at init & toggle time.

Also, simplify a bunch of redundant nested lookups in ReaderView
(self.ui.view is self, self.ui.document is self.document).
This commit is contained in:
NiLuJe
2022-02-06 18:01:45 +01:00
parent afe1dc9681
commit 35776f1f87
5 changed files with 90 additions and 47 deletions
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13
frontend/document/document.lua
View File

@@ -75,9 +75,14 @@ function Document:_init()
date = ""
}
-- Should be updated by a call to Document.updateColorRendering(self)
-- in subclasses
-- Should be updated by a call to Document.updateColorRendering(self) in subclasses
self.render_color = false
-- Those may be updated via KOptOptions, or the DitheringUpdate event.
-- Whether HW dithering is enabled
self.hw_dithering = false
-- Whether SW dithering is enabled
self.sw_dithering = false
end
-- override this method to open a document
@@ -496,9 +501,7 @@ Draw page content to blitbuffer.
function Document:drawPage(target, x, y, rect, pageno, zoom, rotation, gamma, render_mode)
local tile = self:renderPage(pageno, rect, zoom, rotation, gamma, render_mode)
-- Enable SW dithering if requested (only available in koptoptions)
-- Much Like ReaderView, also enforce SW dithering in PicDocument if the device can't do HW dithering...
if (self.is_pic and CanvasContext:hasEinkScreen() and not CanvasContext:canHWDither() and CanvasContext.fb_bpp == 8)
or (self.configurable.sw_dithering and self.configurable.sw_dithering == 1) then
if self.sw_dithering then
target:ditherblitFrom(tile.bb,
x, y,
rect.x - tile.excerpt.x,