KittyPatch/kitty
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

micro optimization

Browse Source
This commit is contained in:
Kovid Goyal 2017-10-04 19:46:19 +05:30
parent 46bb482e96
commit 596a392e68
No known key found for this signature in database
GPG Key ID: 06BC317B515ACE7C
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
kitty/graphics.c
View File

@ -578,12 +578,13 @@ grman_update_layers(GraphicsManager *self, unsigned int scrolled_by, float scree
float screen_bottom = screen_top - screen_height;
float screen_width_px = num_cols * global_state.cell_width;
float screen_height_px = num_rows * global_state.cell_height;
float y0 = screen_top - dy * scrolled_by;
// Iterate over all visible refs and create render data
self->count = 0;
for (i = 0; i < self->image_count; i++) { img = self->images + i; for (j = 0; j < img->refcnt; j++) { ref = img->refs + j;
r.top = screen_top - (scrolled_by + ref->start_row) * dy - dy * (float)ref->cell_y_offset / (float)global_state.cell_height;
if (ref->num_rows) r.bottom = screen_top - (scrolled_by + ref->start_row + ref->num_rows) * dy;
r.top = y0 - ref->start_row * dy - dy * (float)ref->cell_y_offset / (float)global_state.cell_height;
if (ref->num_rows) r.bottom = y0 - (ref->start_row + ref->num_rows) * dy;
else r.bottom = r.top - screen_height * (float)ref->src_height / screen_height_px;
if (r.top < screen_bottom || r.bottom > screen_top) continue; // not visible