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avoid blurry filter when scaling factor is 2x, 3x, etc

This commit is contained in:
volth 2019-09-14 17:57:45 +00:00 committed by volth
parent f5e749f04b
commit 1edceffa31
1 changed files with 9 additions and 1 deletions
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10
client/X11/xf_client.c
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@ -123,6 +123,7 @@ static void xf_draw_screen_scaled(xfContext* xfc, int x, int y, int w, int h)
double yScalingFactor;
int x2;
int y2;
const char* filter;
rdpSettings* settings = xfc->context.settings;
if (xfc->scaledWidth <= 0 || xfc->scaledHeight <= 0)
@ -167,7 +168,14 @@ static void xf_draw_screen_scaled(xfContext* xfc, int x, int y, int w, int h)
CPSubwindowMode, &pa);
windowPicture = XRenderCreatePicture(xfc->display, xfc->window->handle,
picFormat, CPSubwindowMode, &pa);
XRenderSetPictureFilter(xfc->display, primaryPicture, FilterBilinear, 0, 0);
// avoid blurry filter when scaling factor is 2x, 3x, etc
// useful when the client has high-dpi monitor
if (xScalingFactor == yScalingFactor && abs(1/xScalingFactor - round(1/xScalingFactor)) < 0.001) {
filter = FilterNearest;
} else {
filter = FilterBilinear;
}
XRenderSetPictureFilter(xfc->display, primaryPicture, filter, 0, 0);
transform.matrix[0][0] = XDoubleToFixed(xScalingFactor);
transform.matrix[0][1] = XDoubleToFixed(0.0);
transform.matrix[0][2] = XDoubleToFixed(0.0);