add builtin shaders

framework/opengl_renderer/test/builtins.cpp

@@ -0,0 +1,59 @@
+#include <gtest/gtest.h>
+
+#include <mm/engine.hpp>
+#include <mm/services/filesystem.hpp>
+#include <mm/services/sdl_service.hpp>
+#include <mm/services/opengl_renderer.hpp>
+
+//#include <mm/opengl/res/shaders_builtin.hpp>
+
+#include <mm/opengl/shader.hpp>
+#include <mm/opengl/shader_builder.hpp>
+
+#include <mm/fs_const_archiver.hpp> // include only works on files rn
+
+static const char* argv0 = "";
+
+TEST(builtins, all) {
+	MM::Engine engine;
+
+	engine.addService<MM::Services::FilesystemService>(argv0);
+	ASSERT_TRUE(engine.enableService<MM::Services::FilesystemService>());
+
+	engine.addService<MM::Services::SDLService>();
+	ASSERT_TRUE(engine.enableService<MM::Services::SDLService>());
+
+	engine.addService<MM::Services::OpenGLRenderer>();
+	ASSERT_TRUE(engine.enableService<MM::Services::OpenGLRenderer>()); // adds builtins
+
+	engine.update();
+
+	FS_CONST_MOUNT_FILE("/shaders/test_frag.glsl",
+GLSL_VERSION_STRING
+R"(
+#ifdef GL_ES
+	precision mediump float;
+#endif
+
+#include "/shaders/builtin/sampling.glsl"
+#include "/shaders/builtin/tonemapping.glsl"
+
+void main() {
+}
+)");
+
+	auto sb = MM::OpenGL::ShaderBuilder::start();
+	sb.addStageVertex("void main() {}");
+	sb.addStageFragmentF(engine, "/shaders/test_frag.glsl");
+	auto shader = sb.finish();
+	ASSERT_TRUE(shader);
+}
+
+int main(int argc, char** argv) {
+	argv0 = argv[0];
+
+	::testing::InitGoogleTest(&argc, argv);
+
+	return RUN_ALL_TESTS();
+}
+