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Function to dump processed legacy GLSL shaders

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Makes it easier to compare legacy with new shaders
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Kovid Goyal 2026-07-03 14:16:20 +05:30
parent 8364a7c096
commit 4bb534f72c
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GPG key ID: 06BC317B515ACE7C
1 changed files with 35 additions and 11 deletions
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46
kitty/shaders/legacy.py
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@ -38,6 +38,7 @@ from kitty.fast_data_types import (
get_options,
init_cell_program,
)
from kitty.options.types import Options, defaults
def identity(x: str) -> str:
@ -140,10 +141,12 @@ class LoadShaderPrograms:
text_fg_override_threshold: tuple[float, Literal['%', 'ratio']] = 0, '%'
text_old_gamma: bool = False
cell_program_replacer: MultiReplacer = null_replacer
opts: Options | None = None
compile_programs: bool = True
@property
def needs_recompile(self) -> bool:
opts = get_options()
opts = self.opts or get_options()
return (
bool(opts.text_fg_override_threshold[0]) != bool(self.text_fg_override_threshold[0]) or
opts.text_fg_override_threshold[1] != self.text_fg_override_threshold[1] or
@ -155,7 +158,7 @@ class LoadShaderPrograms:
self(allow_recompile=True)
def __call__(self, allow_recompile: bool = False) -> None:
opts = get_options()
opts = self.opts or get_options()
self.text_old_gamma = opts.text_composition_strategy == 'legacy'
self.text_fg_override_threshold = opts.text_fg_override_threshold
@ -191,7 +194,8 @@ class LoadShaderPrograms:
}.items():
fn = partial(resolve_cell_defines, only_fg, only_bg)
cell.apply_to_sources(vertex=fn, frag=fn)
cell.compile(prog, allow_recompile)
if self.compile_programs:
cell.compile(prog, allow_recompile)
graphics = program_for('graphics')
def resolve_graphics_fragment_defines(which: str, is_premult: bool, f: str) -> str:
@ -204,15 +208,35 @@ class LoadShaderPrograms:
GRAPHICS_PREMULT_PROGRAM: ('IMAGE', True),
}.items():
graphics.apply_to_sources(frag=partial(resolve_graphics_fragment_defines, which, is_premult))
graphics.compile(p, allow_recompile)
if self.compile_programs:
graphics.compile(p, allow_recompile)
program_for('bgimage').compile(BGIMAGE_PROGRAM, allow_recompile)
program_for('tint').compile(TINT_PROGRAM, allow_recompile)
program_for('trail').compile(TRAIL_PROGRAM, allow_recompile)
program_for('blit').compile(BLIT_PROGRAM, allow_recompile)
program_for('screenshot').compile(SCREENSHOT_PROGRAM, allow_recompile)
program_for('rounded_rect').compile(ROUNDED_RECT_PROGRAM, allow_recompile)
init_cell_program()
if self.compile_programs:
program_for('bgimage').compile(BGIMAGE_PROGRAM, allow_recompile)
program_for('tint').compile(TINT_PROGRAM, allow_recompile)
program_for('trail').compile(TRAIL_PROGRAM, allow_recompile)
program_for('blit').compile(BLIT_PROGRAM, allow_recompile)
program_for('screenshot').compile(SCREENSHOT_PROGRAM, allow_recompile)
program_for('rounded_rect').compile(ROUNDED_RECT_PROGRAM, allow_recompile)
init_cell_program()
load_shader_programs = LoadShaderPrograms()
def dump_programs(dest_dir: str) -> None:
import os
load_shader_programs.compile_programs = False
load_shader_programs.opts = defaults
try:
load_shader_programs()
os.makedirs(dest_dir, exist_ok=True)
for name in 'border bgimage tint trail blit screenshot rounded_rect cell graphics'.split():
p = program_for(name)
with open(os.path.join(dest_dir, f'{name}.vert.glsl'), 'w') as f:
f.write('\n\n'.join(p.vertex_sources))
with open(os.path.join(dest_dir, f'{name}.frag.glsl'), 'w') as f:
f.write('\n\n'.join(p.fragment_sources))
finally:
load_shader_programs.compile_programs = True
load_shader_programs.opts = None