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Mutex the border rendering code

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This commit is contained in:
Kovid Goyal 2016-11-29 12:49:30 +05:30
parent 7fd15be071
commit 24525f7039
1 changed files with 24 additions and 20 deletions
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44
kitty/borders.py
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@ -3,6 +3,7 @@
# License: GPL v3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
from ctypes import addressof
from threading import Lock
from .constants import viewport_size, GLfloat, GLint, GLuint
from .fast_data_types import glUniform3fv, GL_TRIANGLE_FAN, glMultiDrawArrays
@ -60,6 +61,7 @@ class Borders:
def __init__(self, opts):
self.is_dirty = False
self.lock = Lock()
self.can_render = False
dpix, dpiy = get_dpi()['logical']
dpi = (dpix + dpiy) / 2
@ -71,8 +73,6 @@ class Borders:
)
def __call__(self, windows, active_window, draw_window_borders=True):
self.can_render = True
self.is_dirty = True
vw, vh = viewport_size.width, available_height()
if windows:
left_edge = min(w.geometry.left for w in windows)
@ -101,23 +101,27 @@ class Borders:
rects.extend(as_rect(g.left - bw, g.top - bw, g.right + bw, g.top, color))
rects.extend(as_rect(g.right, g.top - bw, g.right + bw, g.bottom + bw, color))
rects.extend(as_rect(g.left - bw, g.bottom, g.right + bw, g.bottom + bw, color))
self.num_of_rects = len(rects) // 12
self.rects = (GLfloat * len(rects))()
self.starts = (GLint * self.num_of_rects)()
self.counts = (GLuint * self.num_of_rects)()
for i, x in enumerate(rects):
self.rects[i] = x
if i % 12 == 0:
idx = i // 12
self.starts[idx] = i // 3
self.counts[idx] = 4
with self.lock:
self.num_of_rects = len(rects) // 12
self.rects = (GLfloat * len(rects))()
self.starts = (GLint * self.num_of_rects)()
self.counts = (GLuint * self.num_of_rects)()
for i, x in enumerate(rects):
self.rects[i] = x
if i % 12 == 0:
idx = i // 12
self.starts[idx] = i // 3
self.counts[idx] = 4
self.is_dirty = True
self.can_render = True
def render(self, program):
if not self.can_render:
return
with program:
if self.is_dirty:
program.send_data(self.rects)
program.set_colors(self.color_buf)
self.is_dirty = False
glMultiDrawArrays(GL_TRIANGLE_FAN, addressof(self.starts), addressof(self.counts), self.num_of_rects)
with self.lock:
if not self.can_render:
return
with program:
if self.is_dirty:
program.send_data(self.rects)
program.set_colors(self.color_buf)
self.is_dirty = False
glMultiDrawArrays(GL_TRIANGLE_FAN, addressof(self.starts), addressof(self.counts), self.num_of_rects)