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Optimize the hot loop

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Kovid Goyal
2016-10-30 17:19:37 +05:30
parent be9b8e993d
commit 2de8c70bb8
2 changed files with 40 additions and 26 deletions
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25
kitty/shaders.py
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@@ -10,6 +10,7 @@ from OpenGL.GL.ARB.copy_image import glCopyImageSubData # only present in openg
from OpenGL.GL.ARB.texture_storage import glTexStorage3D # only present in opengl core >= 4.2
from .fonts import render_cell, cell_size
from .data_types import ITALIC_MASK, BOLD_MASK
GL_VERSION = (3, 3)
VERSION = GL_VERSION[0] * 100 + GL_VERSION[1] * 10
@@ -121,22 +122,24 @@ class Sprites:
gl.glBufferData(tgt, ArrayDatatype.arrayByteCount(data), data, gl.GL_STATIC_DRAW)
gl.glBindBuffer(tgt, 0)
def primary_sprite_position(self, text, bold=False, italic=False):
def primary_sprite_position(self, key):
' Return a 3-tuple (x, y, z) giving the position of this sprite on the sprite sheet '
key = text, bold, italic
first = self.first_cell_cache.get(key)
if first is None:
first, second = render_cell(text, bold, italic)
self.first_cell_cache[key] = first = self.add_sprite(first)
if second is not None:
self.second_cell_cache[key] = self.add_sprite(second)
try:
return self.first_cell_cache[key]
except KeyError:
pass
text, attrs = key
bold, italic = attrs & BOLD_MASK, attrs & ITALIC_MASK
first, second = render_cell(text, bold, italic)
self.first_cell_cache[key] = first = self.add_sprite(first)
if second is not None:
self.second_cell_cache[key] = self.add_sprite(second)
return first
def secondary_sprite_position(self, text, bold=False, italic=False):
key = text, bold, italic
def secondary_sprite_position(self, key):
ans = self.second_cell_cache.get(key)
if ans is None:
self.primary_sprite_position(text, bold, italic)
self.primary_sprite_position(key)
ans = self.second_cell_cache.get(key)
if ans is None:
return 0, 0, 0