diff options
Diffstat (limited to '')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/gl_FragCoord/gl_FragCoord_xy_frag_ref.frag | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/gl_FragCoord/gl_FragCoord_xy_frag_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/gl_FragCoord/gl_FragCoord_xy_frag_ref.frag new file mode 100644 index 0000000000..deea9c581b --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/gl_FragCoord/gl_FragCoord_xy_frag_ref.frag @@ -0,0 +1,20 @@ + +/* +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +*/ + + +#ifdef GL_ES +precision mediump float; +#endif +varying vec4 color; + +void main(void) +{ + // The image width is 500x500 and the rectangle is 434x434 + // The green component corresponds to x (0...1 left to right) and the + // blue component corresponds to y (0...1 bottom to top) + gl_FragColor = vec4((434.0 / 500.0) * (color.gb - 0.5) + 0.5, 0.0, 1.0); +} |