diff options
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/mat/const_mat3_vert.vert')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/mat/const_mat3_vert.vert | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/mat/const_mat3_vert.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/mat/const_mat3_vert.vert new file mode 100644 index 0000000000..5b66a4ff24 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/mat/const_mat3_vert.vert @@ -0,0 +1,62 @@ + +/* +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. +*/ + + +attribute vec4 gtf_Vertex; +uniform mat4 gtf_ModelViewProjectionMatrix; +varying vec4 color; + +#define ERROR_EPSILON 0.1 + +void main (void) +{ + float x; + // Declare a constant 3 by 3 matrix with unique elements. + const mat3 a = mat3( 1.0, 2.0, 4.0, // 1.0 8.0 64.0 + 8.0, 16.0, 32.0, // 2.0 16.0 128.0 + 64.0, 128.0, 256.0); // 4.0 32.0 256.0 + + // Check each element. + bool elms = true; + if(a[0][0] != 1.0) elms = false; + if(a[0][1] != 2.0) elms = false; + if(a[0][2] != 4.0) elms = false; + if(a[1][0] != 8.0) elms = false; + if(a[1][1] != 16.0) elms = false; + if(a[1][2] != 32.0) elms = false; + if(a[2][0] != 64.0) elms = false; + if(a[2][1] != 128.0) elms = false; + if(a[2][2] != 256.0) elms = false; + + // Add up each row. + bool rows = true; + x = a[0][0] + a[1][0] + a[2][0]; + if( x < 73.0-ERROR_EPSILON || x > 73.0+ERROR_EPSILON ) rows = false; + x = a[0][1] + a[1][1] + a[2][1]; + if(x < 146.0-ERROR_EPSILON || x > 146.0+ERROR_EPSILON ) rows = false; + x = a[0][2] + a[1][2] + a[2][2]; + if(x < 292.0-ERROR_EPSILON || x > 292.0+ERROR_EPSILON ) rows = false; + + // Add up each column. + bool cols = true; + x = a[0][0] + a[0][1] + a[0][2]; + if( x < 7.0-ERROR_EPSILON || x > 7.0+ERROR_EPSILON ) cols = false; + x = a[1][0] + a[1][1] + a[1][2]; + if(x < 56.0-ERROR_EPSILON || x > 56.0+ERROR_EPSILON) cols = false; + x = a[2][0] + a[2][1] + a[2][2]; + if(x < 448.0-ERROR_EPSILON || x > 448.0+ERROR_EPSILON) cols = false; + + // Check if all of the operations were successful. + float gray = elms && rows && cols ? 1.0 : 0.0; + + // Assign the varying variable color. + color = vec4(gray, gray, gray, 1.0); + + // Transform the vertex position. + gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex; +} + |