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authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/old/vlib/glm/glm_test.v
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Adds most of the toolsHEADmaster
Diffstat (limited to 'v_windows/v/old/vlib/glm/glm_test.v')
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+// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+// might need special case for this
+// import gl
+import glm
+
+fn cmp(a f32, b f32) bool {
+ return int(a * 1000) == int(b * 1000)
+}
+
+fn test_ortho() {
+ projection := glm.ortho(0, 200, 400, 0)
+ $if debug {
+ println(unsafe { projection.data[0] })
+ }
+ unsafe {
+ assert cmp(projection.data[0], 0.01)
+ assert cmp(projection.data[1], 0.000000)
+ assert cmp(projection.data[2], 0.000000)
+ assert cmp(projection.data[3], 0.000000)
+ assert cmp(projection.data[4], 0.000000)
+ assert cmp(projection.data[5], -0.005000)
+ assert cmp(projection.data[6], 0.000000)
+ assert cmp(projection.data[7], 0.000000)
+ assert cmp(projection.data[8], 0.000000)
+ assert cmp(projection.data[9], 0.000000)
+ assert cmp(projection.data[10], 1.000000)
+ assert cmp(projection.data[11], 0.000000)
+ assert cmp(projection.data[12], -1.000000)
+ assert cmp(projection.data[13], 1.000000)
+ assert cmp(projection.data[14], 0.000000)
+ assert cmp(projection.data[15], 1.000000)
+ }
+ // f := gg.ortho(1,2,3,4)
+ /*
+ // for debugging broken tetris in gg.o
+ # projection.data[0]=0.010000;
+ # projection.data[1]=0.000000;
+ # projection.data[2]=0.000000;
+ # projection.data[3]=0.000000;
+ # projection.data[4]=0.000000;
+ # projection.data[5]=-0.005000;
+ # projection.data[6]=0.000000;
+ # projection.data[7]=0.000000;
+ # projection.data[8]=0.000000;
+ # projection.data[9]=0.000000;
+ # projection.data[10]=1.000000;
+ # projection.data[11]=0.000000;
+ # projection.data[12]=-1.000000;
+ # projection.data[13]=1.000000;
+ # projection.data[14]=0.000000;
+ # projection.data[15]=1.000000;
+ */
+}
+
+fn test_rotate() {
+ $if debug {
+ println('rotate')
+ }
+ mut m := glm.identity()
+ m = glm.scale(m, glm.vec3(2, 2, 2))
+ $if debug {
+ println(m)
+ }
+ m = glm.rotate_z(m, 1)
+ $if debug {
+ println(m)
+ }
+ mut m1 := glm.identity()
+ mut m2 := glm.identity()
+ m1 = glm.rotate(1, glm.vec3(1, 0, 0), m1)
+ m2 = glm.rotate(1, glm.vec3(0, 1, 0), m2)
+ mut same := true
+ for i in 0 .. 15 {
+ if unsafe { m1.data[i] } != unsafe { m2.data[i] } {
+ same = false
+ }
+ }
+ assert !same
+}
+
+fn test_translate() {
+ mut m := glm.identity()
+ m = glm.translate(m, glm.vec3(0, 0, -0.5))
+ $if debug {
+ println(m)
+ }
+ unsafe {
+ assert m.data[0] == 1.0
+ assert m.data[1] == 0.0
+ assert m.data[2] == 0.0
+ assert m.data[3] == 0.0
+ //
+ assert m.data[4] == 0.0
+ assert m.data[5] == 1.0
+ assert m.data[6] == 0.0
+ assert m.data[7] == 0.0
+ assert m.data[8] == 0.0
+ assert m.data[9] == 0.0
+ assert m.data[10] == 1.0
+ assert m.data[11] == 0.0
+ //
+ assert m.data[12] == 0.0
+ assert m.data[13] == 0.0
+ assert m.data[14] == -0.5
+ assert m.data[15] == 1.0
+ }
+}
+
+fn f32_calloc(n int) &f32 {
+ return voidptr(vcalloc(n * int(sizeof(f32))))
+}
+
+fn test_mult1() {
+ mut adata := f32_calloc(16)
+ unsafe {
+ adata[1 * 4 + 1] = 6
+ adata[2 * 4 + 3] = 2
+ adata[0 * 4 + 2] = 3
+ adata[2 * 4 + 1] = 1
+ }
+ mut bdata := f32_calloc(16)
+ unsafe {
+ bdata[1 * 4 + 1] = -2
+ bdata[2 * 4 + 3] = 1
+ bdata[0 * 4 + 2] = 6
+ bdata[2 * 4 + 1] = -3
+ }
+ mut expected := f32_calloc(16)
+ unsafe {
+ expected[0 * 4 + 0] = 0 // 0*0+0*0+0*6+0*0
+ expected[0 * 4 + 1] = 6 // 0*0+0*6+1*6+0*0
+ expected[0 * 4 + 2] = 0 // 3*0+0*0+0*6+0*0
+ expected[0 * 4 + 3] = 12 // 0*0+0*0+2*6+0*0
+ expected[1 * 4 + 0] = 0 // 0*0+0*-2+0*0+0*0
+ expected[1 * 4 + 1] = -12 // 0*0­+6*-2+1*0­+0*0
+ expected[1 * 4 + 2] = 0 // 3*0­+0*-2­+0*0­+0*0
+ expected[1 * 4 + 3] = 0 // 0*0­+0*-2­+2*0­+0*0
+ expected[2 * 4 + 0] = 0 // 0*0­+0*-3­+0*0­+0*1
+ expected[2 * 4 + 1] = -18 // 0*0­+6*-3­+1*0­+0*1
+ expected[2 * 4 + 2] = 0 // 3*0­+0*-3+0*0­+0*1
+ expected[2 * 4 + 3] = 0 // 0*0­+0*-3­+2*0­+0*1
+ expected[3 * 4 + 0] = 0 // 0*0­+0*0­+0*0­+0*0
+ expected[3 * 4 + 1] = 0 // 0*0­+6*0­+1*0­+0*0
+ expected[3 * 4 + 2] = 0 // 3*0­+0*0­+0*0­+0*0
+ expected[3 * 4 + 3] = 0 // 0*0­+0*0­+2*0­+0*0
+ }
+ mut a := glm.Mat4{adata}
+ b := glm.Mat4{bdata}
+ a = glm.mult(a, b)
+ for i in 0 .. 15 {
+ assert unsafe { a.data[i] } == unsafe { expected[i] }
+ }
+}