| 1 | var defaultVertex = `attribute vec2 aVertexPosition;
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| 2 |
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| 3 | uniform mat3 projectionMatrix;
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| 4 |
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| 5 | varying vec2 vTextureCoord;
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| 6 |
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| 7 | uniform vec4 inputSize;
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| 8 | uniform vec4 outputFrame;
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| 9 |
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| 10 | vec4 filterVertexPosition( void )
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| 11 | {
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| 12 | vec2 position = aVertexPosition * max(outputFrame.zw, vec2(0.)) + outputFrame.xy;
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| 13 |
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| 14 | return vec4((projectionMatrix * vec3(position, 1.0)).xy, 0.0, 1.0);
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| 15 | }
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| 16 |
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| 17 | vec2 filterTextureCoord( void )
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| 18 | {
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| 19 | return aVertexPosition * (outputFrame.zw * inputSize.zw);
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| 20 | }
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| 21 |
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| 22 | void main(void)
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| 23 | {
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| 24 | gl_Position = filterVertexPosition();
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| 25 | vTextureCoord = filterTextureCoord();
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| 26 | }
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| 27 | `;
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| 28 | export {
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| 29 | defaultVertex as default
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| 30 | };
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| 31 |
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