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 // CurrentColorTest.cpp: Tests basic usage of glColor4(f|ub|x).
8
9 #include "test_utils/ANGLETest.h"
10 #include "test_utils/gl_raii.h"
11
12 #include "util/random_utils.h"
13
14 #include <stdint.h>
15
16 using namespace angle;
17
18 class CurrentColorTest : public ANGLETest<>
19 {
20 protected:
CurrentColorTest()21 CurrentColorTest()
22 {
23 setWindowWidth(32);
24 setWindowHeight(32);
25 setConfigRedBits(8);
26 setConfigGreenBits(8);
27 setConfigBlueBits(8);
28 setConfigAlphaBits(8);
29 setConfigDepthBits(24);
30 }
31 };
32
33 // State query: Checks the initial state is correct.
TEST_P(CurrentColorTest,InitialState)34 TEST_P(CurrentColorTest, InitialState)
35 {
36 const GLColor32F kFloatWhite(1.0f, 1.0f, 1.0f, 1.0f);
37 GLColor32F actualColor;
38 glGetFloatv(GL_CURRENT_COLOR, &actualColor.R);
39 EXPECT_GL_NO_ERROR();
40 EXPECT_EQ(kFloatWhite, actualColor);
41 }
42
43 // Set test: Checks that the current color is properly set and retrieved.
TEST_P(CurrentColorTest,Set)44 TEST_P(CurrentColorTest, Set)
45 {
46 float epsilon = 0.00001f;
47
48 glColor4f(0.1f, 0.2f, 0.3f, 0.4f);
49 EXPECT_GL_NO_ERROR();
50
51 GLColor32F floatColor;
52 glGetFloatv(GL_CURRENT_COLOR, &floatColor.R);
53 EXPECT_GL_NO_ERROR();
54
55 EXPECT_EQ(GLColor32F(0.1f, 0.2f, 0.3f, 0.4f), floatColor);
56
57 glColor4ub(0xff, 0x0, 0x55, 0x33);
58
59 glGetFloatv(GL_CURRENT_COLOR, &floatColor.R);
60 EXPECT_GL_NO_ERROR();
61
62 EXPECT_NEAR(1.0f, floatColor.R, epsilon);
63 EXPECT_NEAR(0.0f, floatColor.G, epsilon);
64 EXPECT_NEAR(1.0f / 3.0f, floatColor.B, epsilon);
65 EXPECT_NEAR(0.2f, floatColor.A, epsilon);
66
67 glColor4x(0x10000, 0x0, 0x3333, 0x5555);
68
69 glGetFloatv(GL_CURRENT_COLOR, &floatColor.R);
70 EXPECT_GL_NO_ERROR();
71
72 EXPECT_NEAR(1.0f, floatColor.R, epsilon);
73 EXPECT_NEAR(0.0f, floatColor.G, epsilon);
74 EXPECT_NEAR(0.2f, floatColor.B, epsilon);
75 EXPECT_NEAR(1.0f / 3.0f, floatColor.A, epsilon);
76 }
77
78 ANGLE_INSTANTIATE_TEST_ES1(CurrentColorTest);
79