Externals: Add glslang from Vulkan SDK v1.0.21.1

Externals/glslang/gtests/Link.FromFile.cpp

@@ -0,0 +1,107 @@
+//
+// Copyright (C) 2016 Google, Inc.
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+//    Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//
+//    Redistributions in binary form must reproduce the above
+//    copyright notice, this list of conditions and the following
+//    disclaimer in the documentation and/or other materials provided
+//    with the distribution.
+//
+//    Neither the name of Google Inc. nor the names of its
+//    contributors may be used to endorse or promote products derived
+//    from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+#include <memory>
+
+#include <gtest/gtest.h>
+
+#include "TestFixture.h"
+
+namespace glslangtest {
+namespace {
+
+using LinkTest = GlslangTest<
+    ::testing::TestWithParam<std::vector<std::string>>>;
+
+TEST_P(LinkTest, FromFile)
+{
+    const auto& fileNames = GetParam();
+    const size_t fileCount = fileNames.size();
+    const EShMessages controls = DeriveOptions(Source::GLSL, Semantics::OpenGL, Target::AST);
+    GlslangResult result;
+
+    // Compile each input shader file.
+    std::vector<std::unique_ptr<glslang::TShader>> shaders;
+    for (size_t i = 0; i < fileCount; ++i) {
+        std::string contents;
+        tryLoadFile(GLSLANG_TEST_DIRECTORY "/" + fileNames[i],
+                    "input", &contents);
+        shaders.emplace_back(
+                new glslang::TShader(GetShaderStage(GetSuffix(fileNames[i]))));
+        auto* shader = shaders.back().get();
+        compile(shader, contents, "", controls);
+        result.shaderResults.push_back(
+            {fileNames[i], shader->getInfoLog(), shader->getInfoDebugLog()});
+    }
+
+    // Link all of them.
+    glslang::TProgram program;
+    for (const auto& shader : shaders) program.addShader(shader.get());
+    program.link(controls);
+    result.linkingOutput = program.getInfoLog();
+    result.linkingError = program.getInfoDebugLog();
+
+    std::ostringstream stream;
+    outputResultToStream(&stream, result, controls);
+
+    // Check with expected results.
+    const std::string expectedOutputFname =
+        GLSLANG_TEST_DIRECTORY "/baseResults/" + fileNames.front() + ".out";
+    std::string expectedOutput;
+    tryLoadFile(expectedOutputFname, "expected output", &expectedOutput);
+
+    checkEqAndUpdateIfRequested(expectedOutput, stream.str(), expectedOutputFname);
+}
+
+// clang-format off
+INSTANTIATE_TEST_CASE_P(
+    Glsl, LinkTest,
+    ::testing::ValuesIn(std::vector<std::vector<std::string>>({
+        {"mains1.frag", "mains2.frag", "noMain1.geom", "noMain2.geom"},
+        {"noMain.vert", "mains.frag"},
+        {"link1.frag", "link2.frag", "link3.frag"},
+        {"recurse1.vert", "recurse1.frag", "recurse2.frag"},
+        {"300link.frag"},
+        {"300link2.frag"},
+        {"300link3.frag"},
+        {"empty.frag", "empty2.frag", "empty3.frag"},
+        {"150.tesc", "150.tese", "400.tesc", "400.tese", "410.tesc", "420.tesc", "420.tese"},
+        {"max_vertices_0.geom"},
+        {"es-link1.frag", "es-link2.frag"},
+    })),
+);
+// clang-format on
+
+}  // anonymous namespace
+}  // namespace glslangtest