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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include <GLES2/gl2.h> | |
6 | |
7 #include "gpu/command_buffer/tests/gl_manager.h" | |
8 #include "gpu/command_buffer/tests/gl_test_utils.h" | |
9 #include "testing/gtest/include/gtest/gtest.h" | |
10 | |
11 namespace gpu { | |
12 | |
13 namespace { | |
14 const GLenum kCubeMapTextureTargets[] = { | |
15 GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, | |
16 GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, | |
17 GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, | |
18 }; | |
19 } // namespace | |
20 | |
21 // A collection of tests that exercise the cube map texture. | |
22 class GLCubeMapTextureTest : public testing::TestWithParam<GLenum> { | |
23 protected: | |
24 void SetUp() override { | |
25 gl_.Initialize(GLManager::Options()); | |
26 for (int i = 0; i < 256; i++) { | |
27 pixels_[i * 4] = 255u; | |
28 pixels_[(i * 4) + 1] = 0; | |
29 pixels_[(i * 4) + 2] = 0; | |
30 pixels_[(i * 4) + 3] = 255u; | |
31 } | |
32 | |
33 glGenTextures(1, &texture_); | |
34 glBindTexture(GL_TEXTURE_CUBE_MAP, texture_); | |
35 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
36 | |
37 glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | |
38 glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | |
39 glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | |
40 glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | |
41 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
42 | |
43 glGenFramebuffers(1, &framebuffer_id_); | |
44 } | |
45 | |
46 void TearDown() override { | |
47 glDeleteTextures(1, &texture_); | |
48 glDeleteFramebuffers(1, &framebuffer_id_); | |
49 gl_.Destroy(); | |
50 } | |
51 | |
52 GLManager gl_; | |
53 uint8 pixels_[256 * 4]; | |
54 const int width_ = 16; | |
55 GLuint texture_; | |
56 GLuint framebuffer_id_; | |
57 }; | |
58 | |
59 INSTANTIATE_TEST_CASE_P(GLCubeMapTextureTests, | |
60 GLCubeMapTextureTest, | |
61 ::testing::ValuesIn(kCubeMapTextureTargets)); | |
62 | |
63 TEST_P(GLCubeMapTextureTest, TexImage2DAfterFBOBinding) { | |
64 GLenum cube_map_target = GetParam(); | |
65 | |
66 glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_id_); | |
67 glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cube_map_target, | |
68 texture_, 0); | |
69 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
70 | |
71 glBindTexture(GL_TEXTURE_CUBE_MAP, texture_); | |
72 // force_gl_finish_after_compositing workaround prevents Nexus 5 crash. | |
73 // TODO(dshwang): remove the workaround when it's fixed. crbug.com/518889 | |
74 glTexImage2D(cube_map_target, 0, GL_RGBA, width_, width_, 0, GL_RGBA, | |
75 GL_UNSIGNED_BYTE, pixels_); | |
76 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
77 } | |
78 | |
79 TEST_P(GLCubeMapTextureTest, ReadPixels) { | |
80 GLenum cube_map_target = GetParam(); | |
81 | |
82 glBindTexture(GL_TEXTURE_CUBE_MAP, texture_); | |
83 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
84 | |
85 // Make a cube texture complete | |
86 for (unsigned i = 0; i < arraysize(kCubeMapTextureTargets); i++) { | |
87 glTexImage2D(kCubeMapTextureTargets[i], 0, GL_RGBA, width_, width_, 0, | |
88 GL_RGBA, GL_UNSIGNED_BYTE, pixels_); | |
89 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
90 } | |
91 | |
92 glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_id_); | |
93 glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cube_map_target, | |
94 texture_, 0); | |
95 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
96 | |
97 // Check that FB is complete. | |
98 EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE), | |
99 glCheckFramebufferStatus(GL_FRAMEBUFFER)); | |
100 | |
101 GLTestHelper::CheckPixels(0, 0, width_, width_, 0, pixels_); | |
102 EXPECT_TRUE(GL_NO_ERROR == glGetError()); | |
103 } | |
104 | |
105 #if defined(OS_WIN) | |
106 // TODO(dshwang): ANGLE crashes. crbug.com/518889 | |
107 TEST_P(GLCubeMapTextureTest, DISABLED_ReadPixelsFromIncompleteFBO) { | |
108 #else | |
109 TEST_P(GLCubeMapTextureTest, ReadPixelsFromIncompleteFBO) { | |
110 #endif | |
111 GLenum cube_map_target = GetParam(); | |
112 | |
113 glBindTexture(GL_TEXTURE_CUBE_MAP, texture_); | |
114 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
115 | |
116 glTexImage2D(cube_map_target, 0, GL_RGBA, width_, width_, 0, GL_RGBA, | |
117 GL_UNSIGNED_BYTE, pixels_); | |
118 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
119 | |
120 glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_id_); | |
121 glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, cube_map_target, | |
122 texture_, 0); | |
123 | |
124 // force_gl_finish_after_compositing workaround prevents Nexus 5 crash. | |
125 // TODO(dshwang): remove the workaround when it's fixed. crbug.com/518889 | |
126 EXPECT_TRUE(glGetError() == GL_NO_ERROR); | |
127 | |
128 GLsizei size = width_ * width_ * 4; | |
129 scoped_ptr<uint8[]> pixels(new uint8[size]); | |
130 // ANGLE crashes on glReadPixels() from incomplete FBO. | |
131 glReadPixels(0, 0, width_, width_, GL_RGBA, GL_UNSIGNED_BYTE, pixels.get()); | |
132 // According to spec, above glReadPixels() should fail and glGetError() | |
133 // should report an error, but some drivers are fine to bind incomplete cube | |
134 // map texture to FBO. | |
135 glGetError(); | |
136 } | |
137 | |
138 } // namespace gpu | |
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