ps_image_clip.fs.glsl

#line 1

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

void main(void) {
#ifdef WR_FEATURE_TRANSFORM
    float alpha = 1;
    vec2 local_pos = init_transform_fs(vLocalPos, vLocalRect, alpha);

    // We clamp the texture coordinate calculation here to the local rectangle boundaries,
    // which makes the edge of the texture stretch instead of repeat.
    vec2 pos_for_texture =
         clamp(pos, vLocalRect.xy, vLocalRect.xy + vLocalRect.zw) - vLocalRect.xy;
#else
    float alpha = 1;
    vec2 local_pos = vLocalPos;
    vec2 relative_pos_in_rect = vLocalPos - vLocalRect.xy;
#endif

    alpha = min(alpha, do_clip(local_pos, vClipRect, vClipRadius));

    // We calculate the particular tile this fragment belongs to, taking into
    // account the spacing in between tiles. We only paint if our fragment does
    // not fall into that spacing.
    vec2 position_in_tile = mod(relative_pos_in_rect, vStretchSize + vTileSpacing);
    vec2 st = vTextureOffset + ((position_in_tile / vStretchSize) * vTextureSize);
    alpha = alpha * float(all(bvec2(step(position_in_tile, vStretchSize))));

    oFragColor = texture(sDiffuse, st) * vec4(1, 1, 1, alpha);
}