styledtext.frag - mozsearch

Enable keyboard shortcuts

// Copyright (C) 2023 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#version 440

layout(location = 0) in vec2 sampleCoord;

layout(location = 1) in vec2 shiftedSampleCoord;

layout(location = 0) out vec4 fragColor;

layout(binding = 1) uniform sampler2D _qt_texture;

layout(std140, binding = 0) uniform buf {

    mat4 modelViewMatrix;

#if QSHADER_VIEW_COUNT >= 2

    mat4 projectionMatrix[QSHADER_VIEW_COUNT];

#else

    mat4 projectionMatrix;

#endif

    vec2 textureScale;

    float dpr;

    vec4 color;

    // the above must stay compatible with textmask/8bittextmask

    vec4 styleColor;

    vec2 shift;

};

void main()

    float glyph = texture(_qt_texture, sampleCoord).r;

    float style = clamp(texture(_qt_texture, shiftedSampleCoord).r - glyph,

                        0.0, 1.0);

    fragColor = style * styleColor + glyph * color;