1 files changed, 141 insertions, 0 deletions
diff --git a/gfx/angle/src/tests/gl_tests/SRGBFramebufferTest.cpp b/gfx/angle/src/tests/gl_tests/SRGBFramebufferTest.cpp
new file mode 100644
index 000000000..47ff2f3e0
--- /dev/null
+++ b/gfx/angle/src/tests/gl_tests/SRGBFramebufferTest.cpp
@@ -0,0 +1,141 @@
+//
+// 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