1 //
2 // Copyright 2018 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6
7 // MatrixMultTest.cpp: Tests basic usage of glMultMatrix(f|x).
8
9 #include "test_utils/ANGLETest.h"
10 #include "test_utils/gl_raii.h"
11
12 #include "common/matrix_utils.h"
13 #include "util/random_utils.h"
14
15 #include <stdint.h>
16
17 using namespace angle;
18
19 class MatrixMultTest : public ANGLETest
20 {
21 protected:
MatrixMultTest()22 MatrixMultTest()
23 {
24 setWindowWidth(32);
25 setWindowHeight(32);
26 setConfigRedBits(8);
27 setConfigGreenBits(8);
28 setConfigBlueBits(8);
29 setConfigAlphaBits(8);
30 setConfigDepthBits(24);
31 }
32 };
33
34 // Multiplies identity matrix with itself.
TEST_P(MatrixMultTest,Identity)35 TEST_P(MatrixMultTest, Identity)
36 {
37 angle::Mat4 testMatrix;
38 angle::Mat4 outputMatrix;
39
40 glMultMatrixf(testMatrix.data());
41 EXPECT_GL_NO_ERROR();
42
43 glGetFloatv(GL_MODELVIEW_MATRIX, outputMatrix.data());
44 EXPECT_GL_NO_ERROR();
45
46 EXPECT_EQ(angle::Mat4(), outputMatrix);
47 }
48
49 // Multiplies translation matrix and checks matrix underneath in stack is not affected.
TEST_P(MatrixMultTest,Translation)50 TEST_P(MatrixMultTest, Translation)
51 {
52 glPushMatrix();
53
54 angle::Mat4 testMatrix = angle::Mat4::Translate(angle::Vector3(1.0f, 0.0f, 0.0f));
55
56 angle::Mat4 outputMatrix;
57
58 glMultMatrixf(testMatrix.data());
59 EXPECT_GL_NO_ERROR();
60
61 glMultMatrixf(testMatrix.data());
62 EXPECT_GL_NO_ERROR();
63
64 glGetFloatv(GL_MODELVIEW_MATRIX, outputMatrix.data());
65 EXPECT_GL_NO_ERROR();
66
67 EXPECT_EQ(angle::Mat4::Translate(angle::Vector3(2.0f, 0.0f, 0.0f)), outputMatrix);
68
69 glPopMatrix();
70
71 glGetFloatv(GL_MODELVIEW_MATRIX, outputMatrix.data());
72 EXPECT_GL_NO_ERROR();
73
74 EXPECT_EQ(angle::Mat4(), outputMatrix);
75 }
76
77 ANGLE_INSTANTIATE_TEST_ES1(MatrixMultTest);
78