diff options
Diffstat (limited to 'src/quick/scenegraph/shaders_ng/loqsubpixeldistancefieldtext.frag')
-rw-r--r-- | src/quick/scenegraph/shaders_ng/loqsubpixeldistancefieldtext.frag | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/quick/scenegraph/shaders_ng/loqsubpixeldistancefieldtext.frag b/src/quick/scenegraph/shaders_ng/loqsubpixeldistancefieldtext.frag new file mode 100644 index 0000000000..5571417bc5 --- /dev/null +++ b/src/quick/scenegraph/shaders_ng/loqsubpixeldistancefieldtext.frag @@ -0,0 +1,36 @@ +// 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 vec3 sampleNearLeft; +layout(location = 1) in vec3 sampleNearRight; + +layout(location = 0) out vec4 fragColor; + +layout(binding = 1) uniform sampler2D _qt_texture; + +layout(std140, binding = 0) uniform buf { +#if QSHADER_VIEW_COUNT >= 2 + mat4 matrix[QSHADER_VIEW_COUNT]; +#else + mat4 matrix; +#endif + vec2 textureScale; + vec4 color; + float alphaMin; + float alphaMax; + // up to this point it must match distancefieldtext + float fontScale; + vec4 vecDelta; +}; + +void main() +{ + vec2 n; + n.x = textureProj(_qt_texture, sampleNearLeft).r; + n.y = textureProj(_qt_texture, sampleNearRight).r; + n = smoothstep(alphaMin, alphaMax, n); + float c = 0.5 * (n.x + n.y); + fragColor = vec4(n.x, c, n.y, c) * color.w; +} |