// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#version 440

layout(location = 0) in vec4 qt_Vertex;
layout(location = 1) in vec2 qt_MultiTexCoord0;
layout(location = 0) out vec2 texCoord;
layout(location = 1) out vec2 fragCoord;

layout(std140, binding = 0) uniform buf {
    mat4 qt_Matrix;
    float qt_Opacity;
    vec3 iResolution;
    int origo;
    bool subTicksVisible;
    float spacing;
    float subTickLength;
    float displacement;
    vec4 subTickColor;
    vec4 tickColor;
    float subTickLineWidth;
    float tickLineWidth;
    float smoothing;
    float subTickScale;
    bool flipped;
};

out gl_PerVertex { vec4 gl_Position; };

#define HORIZONTAL 1


void main() {
    texCoord = qt_MultiTexCoord0;
    if (origo == 0)
        fragCoord = vec2(qt_Vertex.x, iResolution.y - qt_Vertex.y);
    else if (origo == 1)
        fragCoord = qt_Vertex.xy;
    else if (origo == 2)
        fragCoord = vec2(iResolution.x - qt_Vertex.x, qt_Vertex.y);
    else
        fragCoord = vec2(iResolution.x - qt_Vertex.x, iResolution.y - qt_Vertex.y);
#if (HORIZONTAL == 1)
    fragCoord.x += displacement;
#else
    fragCoord.y += displacement;
#endif
    vec2 vertCoord = qt_Vertex.xy;
    gl_Position = qt_Matrix * vec4(vertCoord, 0.0, 1.0);
}
