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1 // Copyright (c) 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 #include <GLES2/gl2ext.h> | |
7 | |
8 #include "gpu/command_buffer/tests/gl_manager.h" | |
9 #include "gpu/command_buffer/tests/gl_test_utils.h" | |
10 #include "testing/gtest/include/gtest/gtest.h" | |
11 | |
12 namespace gpu { | |
13 | |
14 // A collection of tests that exercise the GL_EXT_srgb extension. | |
15 class GLEXTSRGBTest : public testing::Test { | |
16 protected: | |
17 void SetUp() override { gl_.Initialize(GLManager::Options()); } | |
18 void TearDown() override { gl_.Destroy(); } | |
19 bool IsApplicable() const { | |
20 return GLTestHelper::HasExtension("GL_EXT_sRGB"); | |
21 } | |
22 GLManager gl_; | |
23 }; | |
24 | |
25 // Test to ensure that GL_SRGB_ALPHA as glTex(Sub)Image2D parameter works. This | |
26 // is tricky because GL_SRGB_ALPHA is valid in OpenGL ES 2.0 but not valid in | |
27 // OpenGL. | |
28 TEST_F(GLEXTSRGBTest, TexImageSRGBALPHAFormat) { | |
29 if (!IsApplicable()) | |
30 return; | |
31 static const int kWidth = 10; | |
32 static const int kHeight = 10; | |
33 static const int kSubImageX = kWidth / 2; | |
34 static const int kSubImageY = kHeight / 2; | |
35 static const int kSubImageWidth = kWidth / 2; | |
36 static const int kSubImageHeight = kHeight / 2; | |
37 static const uint8 kImageColor[] = {255, 255, 255, 255}; | |
38 static const uint8 kSubImageColor[] = {128, 128, 128, 128}; | |
39 | |
40 uint8 pixels[kWidth * kHeight * 4]; | |
41 | |
42 GLuint tex = 0; | |
43 glGenTextures(1, &tex); | |
44 glBindTexture(GL_TEXTURE_2D, tex); | |
45 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | |
46 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | |
47 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); | |
48 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); | |
49 | |
50 memset(pixels, kImageColor[0], sizeof(pixels)); | |
51 glTexImage2D(GL_TEXTURE_2D, 0, GL_SRGB_ALPHA_EXT, kWidth, kHeight, 0, | |
52 GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, pixels); | |
53 EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); | |
54 | |
55 memset(pixels, kSubImageColor[0], sizeof(pixels)); | |
56 glTexSubImage2D(GL_TEXTURE_2D, 0, kSubImageX, kSubImageY, kSubImageWidth, | |
57 kSubImageHeight, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, pixels); | |
58 EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError()); | |
59 glBindTexture(GL_TEXTURE_2D, 0); | |
60 GLuint fbo = 0; | |
61 glGenFramebuffers(1, &fbo); | |
62 glBindFramebuffer(GL_FRAMEBUFFER, fbo); | |
63 glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, | |
64 tex, 0); | |
65 EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE), | |
66 glCheckFramebufferStatus(GL_FRAMEBUFFER)); | |
67 | |
68 // glReadPixels with GL_SRGB_ALPHA texture fails for on Nexus5 4.4.4. | |
69 // The intention of this test is to test that TexImage2D and TexSubImage2D | |
70 // works, not necessarily that glReadPixels works. | |
71 // Run the verification only on working implementations. | |
72 uint8 pixel[4] = { | |
73 0, | |
74 }; | |
75 glReadPixels(0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel); | |
Kimmo Kinnunen
2015/11/02 12:21:14
Is this workaround ok?
Other option would be to ad
| |
76 if (glGetError() == GL_NO_ERROR) { | |
77 GLTestHelper::CheckPixels(0, 0, kSubImageX, kHeight, 0, kImageColor); | |
78 GLTestHelper::CheckPixels(0, 0, kWidth, kSubImageY, 0, kImageColor); | |
79 GLTestHelper::CheckPixels(kSubImageX, kSubImageY, kSubImageWidth, | |
80 kSubImageHeight, 0, kSubImageColor); | |
81 } | |
82 } | |
83 | |
84 } // namespace gpu | |
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