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spoopyghosty0
c29cef5f97
Opt-in game setting (Picture -> Draw fades over the picture). Batman: Arkham Shadow fades by dimming its projection layer with XR_KHR_composition_layer_color_scale_bias; with fade_quad=1 FrameBridge adds a black, alpha-blended quad right after the dimmed layer (VIEW space, 1 m ahead), opacity = 1 - scale in 16 steps. One 8x8 swapchain, refilled only when the step changes (Vulkan clear on the app's queue / GLES clear in its context); one swapchain per step hit XR_ERROR_LIMIT_REACHED. fade_quad=2 also removes the layer's own scale. Device (headless, Batman): swapchain created, level 16/16 on the first frame, no xrEndFrame errors, 72 fps.
33 lines
1.4 KiB
Python
33 lines
1.4 KiB
Python
"""fade_quad (FrameBridge, GitHub #197): colour-scale fades drawn as a black quad over the picture."""
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import os
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import shutil
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import subprocess
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from pathlib import Path
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import pytest
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from frameport.patches import base
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from frameport.patches.settings import UI, adapter_settings
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ROOT = Path(__file__).resolve().parents[1]
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def test_fade_levels_follow_the_colour_scale(tmp_path):
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cc = shutil.which("cc") or shutil.which("gcc") or shutil.which("clang")
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if not cc or os.name == "nt":
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pytest.skip("needs a POSIX host C compiler")
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binary = tmp_path / "fade-level-test"
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subprocess.run([cc, "-std=c11", "-Wall", "-Wextra", "-Werror", "-I", str(ROOT / "native/adapter"),
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str(ROOT / "tests/fixtures/src/fade_level_test.c"), "-o", str(binary), "-lm"], check=True)
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subprocess.run([str(binary)], check=True)
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def test_fade_quad_is_an_opt_in_game_setting():
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base.load_all()
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p = base.REGISTRY["adapter.fade_quad"]
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assert p.default == 0 # opt-in: the owner asks testers first (Batman's catalog recipe doesn't set it)
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assert adapter_settings({"adapter.fade_quad": {"value": 1}})["fade_quad"] == 1
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assert UI["fade_quad"]["group"] == "picture" and UI["fade_quad"]["control"] == ("switch",)
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# the adapter reads the key (a renamed setting would silently do nothing)
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assert 'sscanf(line, "fade_quad=%f"' in (ROOT / "native/adapter/frame_adapter.c").read_text()
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