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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 GLTestHelper::CheckPixels(0, 0, kSubImageX, kHeight, 0, kImageColor); |
| 69 GLTestHelper::CheckPixels(0, 0, kWidth, kSubImageY, 0, kImageColor); |
| 70 GLTestHelper::CheckPixels(kSubImageX, kSubImageY, kSubImageWidth, |
| 71 kSubImageHeight, 0, kSubImageColor); |
| 72 } |
| 73 |
| 74 } // namespace gpu |
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