зеркало из https://github.com/mozilla/gecko-dev.git
31 строка
1.2 KiB
GLSL
31 строка
1.2 KiB
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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CompositeInstance ci = fetch_composite_instance();
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AlphaBatchTask dest_task = fetch_alpha_batch_task(ci.render_task_index);
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AlphaBatchTask src_task = fetch_alpha_batch_task(ci.src_task_index);
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vec2 dest_origin = dest_task.render_target_origin -
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dest_task.screen_space_origin +
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src_task.screen_space_origin;
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vec2 local_pos = mix(dest_origin,
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dest_origin + src_task.size,
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aPosition.xy);
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vec2 texture_size = vec2(textureSize(sCacheRGBA8, 0));
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vec2 st0 = src_task.render_target_origin;
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vec2 st1 = src_task.render_target_origin + src_task.size;
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vec2 uv = src_task.render_target_origin + aPosition.xy * src_task.size;
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vUv = vec3(uv / texture_size, src_task.render_target_layer_index);
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vUvBounds = vec4(st0 + 0.5, st1 - 0.5) / texture_size.xyxy;
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vOp = ci.user_data0;
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vAmount = float(ci.user_data1) / 65535.0;
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gl_Position = uTransform * vec4(local_pos, ci.z, 1.0);
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}
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