mirrors/kitty
1
0
Fork 0
mirror of https://github.com/kovidgoyal/kitty synced 2026-07-17 22:14:53 +02:00
Code Issues Packages Projects Releases Wiki Activity

Avoid unnecessary reallocs for cell data

Browse Source 
Only re-allocate when the buffer size changes
This commit is contained in:
Kovid Goyal
2017-08-21 14:56:29 +05:30
parent 101a50b0ff
commit 0bbea6812e
2 changed files with 24 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
kitty/shaders.py
View File

@@ -24,7 +24,8 @@ from .fast_data_types import (
GL_TEXTURE_BUFFER, GL_R32UI, GL_FLOAT, GL_ARRAY_BUFFER, glBindBuffer,
glPixelStorei, glTexBuffer, glActiveTexture, glTexStorage3D,
glCopyImageSubData, glTexSubImage3D, ITALIC, BOLD, SpriteMap,
glEnableVertexAttribArray, glVertexAttribPointer, copy_image_sub_data
glEnableVertexAttribArray, glVertexAttribPointer, copy_image_sub_data,
replace_or_create_buffer
)
from .utils import safe_print
@@ -42,6 +43,7 @@ class Sprites:
# extensions one they become available.
def __init__(self):
self.prev_sprite_map_sz = 0
self.xnum = self.ynum = 1
self.sampler_num = 0
self.buffer_sampler_num = 1
@@ -157,8 +159,9 @@ class Sprites:
return glGenBuffers(1)
def set_sprite_map(self, buf_id, data, usage=GL_STREAM_DRAW):
prev_sz, self.prev_sprite_map_sz = self.prev_sprite_map_sz, sizeof(data)
replace_or_create_buffer(buf_id, self.prev_sprite_map_sz, prev_sz, addressof(data), usage)
self.bind_sprite_map(buf_id)
glNamedBufferData(buf_id, sizeof(data), addressof(data), usage)
def bind_sprite_map(self, buf_id):
glBindBuffer(GL_TEXTURE_BUFFER, buf_id)