| // |
| // Copyright 2016 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // SRGBFramebufferTest.cpp: Tests of sRGB framebuffer functionality. |
| |
| #include "test_utils/ANGLETest.h" |
| #include "test_utils/gl_raii.h" |
| |
| namespace angle |
| { |
| |
| class SRGBFramebufferTest : public ANGLETest |
| { |
| protected: |
| SRGBFramebufferTest() |
| { |
| setWindowWidth(128); |
| setWindowHeight(128); |
| setConfigRedBits(8); |
| setConfigGreenBits(8); |
| setConfigBlueBits(8); |
| setConfigAlphaBits(8); |
| } |
| |
| void SetUp() override |
| { |
| ANGLETest::SetUp(); |
| |
| const std::string vs = |
| "precision highp float;\n" |
| "attribute vec4 position;\n" |
| "void main()\n" |
| "{\n" |
| " gl_Position = vec4(position.xy, 0.0, 1.0);\n" |
| "}\n"; |
| |
| const std::string fs = |
| "precision highp float;\n" |
| "uniform vec4 color;\n" |
| "void main()\n" |
| "{\n" |
| " gl_FragColor = color;\n" |
| "}\n"; |
| |
| mProgram = CompileProgram(vs, fs); |
| ASSERT_NE(0u, mProgram); |
| |
| mColorLocation = glGetUniformLocation(mProgram, "color"); |
| ASSERT_NE(-1, mColorLocation); |
| } |
| |
| void TearDown() override |
| { |
| glDeleteProgram(mProgram); |
| |
| ANGLETest::TearDown(); |
| } |
| |
| GLuint mProgram = 0; |
| GLint mColorLocation = -1; |
| }; |
| |
| // Test basic validation of GL_EXT_sRGB_write_control |
| TEST_P(SRGBFramebufferTest, Validation) |
| { |
| GLenum expectedError = |
| extensionEnabled("GL_EXT_sRGB_write_control") ? GL_NO_ERROR : GL_INVALID_ENUM; |
| |
| GLboolean value = GL_FALSE; |
| glEnable(GL_FRAMEBUFFER_SRGB_EXT); |
| EXPECT_GL_ERROR(expectedError); |
| |
| glGetBooleanv(GL_FRAMEBUFFER_SRGB_EXT, &value); |
| EXPECT_GL_ERROR(expectedError); |
| if (expectedError == GL_NO_ERROR) |
| { |
| EXPECT_EQ(GL_TRUE, value); |
| } |
| |
| glDisable(GL_FRAMEBUFFER_SRGB_EXT); |
| EXPECT_GL_ERROR(expectedError); |
| |
| glGetBooleanv(GL_FRAMEBUFFER_SRGB_EXT, &value); |
| EXPECT_GL_ERROR(expectedError); |
| if (expectedError == GL_NO_ERROR) |
| { |
| EXPECT_EQ(GL_FALSE, value); |
| } |
| } |
| |
| // Test basic functionality of GL_EXT_sRGB_write_control |
| TEST_P(SRGBFramebufferTest, BasicUsage) |
| { |
| if (!extensionEnabled("GL_EXT_sRGB_write_control") || |
| (!extensionEnabled("GL_EXT_sRGB") && getClientMajorVersion() < 3)) |
| { |
| std::cout |
| << "Test skipped because GL_EXT_sRGB_write_control and GL_EXT_sRGB are not available." |
| << std::endl; |
| return; |
| } |
| |
| GLColor linearColor(64, 127, 191, 255); |
| GLColor srgbColor(13, 54, 133, 255); |
| |
| GLTexture texture; |
| glBindTexture(GL_TEXTURE_2D, texture.get()); |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_SRGB_ALPHA_EXT, 1, 1, 0, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, |
| nullptr); |
| |
| GLFramebuffer framebuffer; |
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer.get()); |
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture.get(), 0); |
| |
| glUseProgram(mProgram); |
| glUniform4fv(mColorLocation, 1, srgbColor.toNormalizedVector().data()); |
| |
| glEnable(GL_FRAMEBUFFER_SRGB_EXT); |
| drawQuad(mProgram, "position", 0.5f); |
| EXPECT_PIXEL_COLOR_NEAR(0, 0, linearColor, 1.0); |
| |
| glDisable(GL_FRAMEBUFFER_SRGB_EXT); |
| drawQuad(mProgram, "position", 0.5f); |
| EXPECT_PIXEL_COLOR_NEAR(0, 0, srgbColor, 1.0); |
| } |
| |
| // Use this to select which configurations (e.g. which renderer, which GLES major version) these |
| // tests should be run against. |
| ANGLE_INSTANTIATE_TEST(SRGBFramebufferTest, |
| ES2_D3D9(), |
| ES2_D3D11(), |
| ES3_D3D11(), |
| ES2_OPENGL(), |
| ES3_OPENGL(), |
| ES2_OPENGLES(), |
| ES3_OPENGLES()); |
| |
| } // namespace angle |