New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/shaders/shaders_tests/gl_shaders_desktop_compile_tests.cpp

@@ -0,0 +1,52 @@
+#include "qt_tstfrm/test_main_loop.hpp"
+#include "testing/testing.hpp"
+
+#include "shaders/gl_program_pool.hpp"
+
+#include "drape/drape_global.hpp"
+#include "drape/gl_functions.hpp"
+
+#include <functional>
+
+using namespace std::placeholders;
+
+void CompileShaders(bool apiOpenGLES3, bool enableVTF)
+{
+  auto const api = apiOpenGLES3 ? dp::ApiVersion::OpenGLES3 : dp::ApiVersion::OpenGLES2;
+  GLFunctions::Init(api);
+  gpu::GLProgramPool pool(api);
+  if (enableVTF)
+    pool.SetDefines("#define ENABLE_VTF\n");
+
+  for (size_t i = 0; i < static_cast<size_t>(gpu::Program::ProgramsCount); ++i)
+    pool.Get(static_cast<gpu::Program>(i));
+}
+
+// These unit tests create Qt application and OGL context so can't be run in GUI-less Linux machine.
+#ifdef OMIM_OS_MAC
+UNIT_TEST(DesktopCompileShaders_GLES2_Test)
+{
+  RunTestInOpenGLOffscreenEnvironment("DesktopCompileShaders_GLES2_Test", false /* apiOpenGLES3 */,
+                                      std::bind(&CompileShaders, _1, false /* enableVTF */));
+}
+
+UNIT_TEST(DesktopCompileShaders_GLES3_Test)
+{
+  RunTestInOpenGLOffscreenEnvironment("DesktopCompileShaders_GLES3_Test", true /* apiOpenGLES3 */,
+                                      std::bind(&CompileShaders, _1, false /* enableVTF */));
+
+}
+
+UNIT_TEST(DesktopCompileShaders_GLES2_VTF_Test)
+{
+  RunTestInOpenGLOffscreenEnvironment("DesktopCompileShaders_GLES2_VTF_Test", false /* apiOpenGLES3 */,
+                                      std::bind(&CompileShaders, _1, true /* enableVTF */));
+}
+
+UNIT_TEST(DesktopCompileShaders_GLES3_VTF_Test)
+{
+  RunTestInOpenGLOffscreenEnvironment("DesktopCompileShaders_GLES3_VTF_Test", true /* apiOpenGLES3 */,
+                                      std::bind(&CompileShaders, _1, true /* enableVTF */));
+
+}
+#endif