42 lines
1009 B
Plaintext
42 lines
1009 B
Plaintext
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// pathfinder/shaders/gles2/direct-curve.vs.glsl
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//
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// Copyright (c) 2017 Mozilla Foundation
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#version 100
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precision highp float;
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uniform mat4 uTransform;
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uniform ivec2 uFramebufferSize;
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uniform ivec2 uPathColorsDimensions;
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uniform sampler2D uPathColors;
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attribute vec2 aPosition;
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attribute ivec2 aTexCoord;
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attribute int aKind;
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varying vec4 vColor;
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varying vec2 vTexCoord;
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varying float vSign;
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void main() {
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vec2 position = transformVertexPosition(aPosition, uTransform);
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position = convertScreenToClipSpace(position, uFramebufferSize);
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float depth = convertPathIndexToDepthValue(aPathIndex);
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gl_Position = vec4(position, depth, 1.0);
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vColor = fetchFloat4Data(uPathColors, aPathIndex, uPathColorsDimensions);
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vTexCoord = vec2(aTexCoord) / 2.0;
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switch (aKind) {
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case PF_B_VERTEX_KIND_CONVEX_CONTROL_POINT:
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vSign = -1.0;
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break;
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case PF_B_VERTEX_KIND_CONCAVE_CONTROL_POINT:
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vSign = 1.0;
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break;
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default:
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vSign = 0.0;
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}
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}
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