зеркало из https://github.com/mozilla/gecko-dev.git
18 строки
771 B
GLSL
18 строки
771 B
GLSL
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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void main(void) {
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float alpha = 1.f;
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vec2 local_pos = init_transform_fs(vPos, vLocalRect, alpha);
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bool repeat_mask = false; //TODO
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vec2 clamped_mask_uv = repeat_mask ? fract(vClipMaskUv.xy) :
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clamp(vClipMaskUv.xy, vec2(0.0, 0.0), vec2(1.0, 1.0));
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vec2 source_uv = clamp(clamped_mask_uv * vClipMaskUvRect.zw + vClipMaskUvRect.xy,
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vClipMaskUvInnerRect.xy, vClipMaskUvInnerRect.zw);
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float clip_alpha = texture(sMask, source_uv).r; //careful: texture has type A8
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oFragColor = vec4(min(alpha, clip_alpha), 1.0, 1.0, 1.0);
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}
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