Merge remote-tracking branch 'origin/wip/qt6' into wip/cmake

Change-Id: I2963c1209316fb6755f572969f368970450d7991

1 files changed, 29 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..08b2ce5187
--- /dev/null
+++ b/src/quick/scenegraph/shaders_ng/loqsubpixeldistancefieldtext.frag
@@ -0,0 +1,29 @@
+#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 {
+    mat4 matrix;
+    vec2 textureScale;
+    vec4 color;
+    float alphaMin;
+    float alphaMax;
+    // up to this point it must match distancefieldtext
+    float fontScale;
+    vec4 vecDelta;
+} ubuf;
+
+void main()
+{
+    vec2 n;
+    n.x = textureProj(_qt_texture, sampleNearLeft).r;
+    n.y = textureProj(_qt_texture, sampleNearRight).r;
+    n = smoothstep(ubuf.alphaMin, ubuf.alphaMax, n);
+    float c = 0.5 * (n.x + n.y);
+    fragColor = vec4(n.x, c, n.y, c) * ubuf.color.w;
+}