moving to a structure in visual representing the underlying APIs first and then layering on top the scene graph. Various other additions and fixes.

src/core/src/image.cpp

@@ -18,10 +18,13 @@ bool image::create(const sizei &s, image::pixel_layout t, void *ptr)
         auto a = reinterpret_cast<uint8_t*>(ptr);
 
         _data.assign(a,a + n);
+		_size = s;
+		_layout = t;
 
     } else {
 
         _data.resize(n,0);
+		_size = sizei(0,0);
     }
 
     return !_data.empty();

src/engine/CMakeLists.txt

@@ -5,7 +5,8 @@ set(scripts_demo
 
 set(scripts_test
 	${CMAKE_SOURCE_DIR}/src/scripts/tests/test_core.lua
-        ${CMAKE_SOURCE_DIR}/src/scripts/tests/test_io.lua
+	${CMAKE_SOURCE_DIR}/src/scripts/tests/test_system.lua
+	${CMAKE_SOURCE_DIR}/src/scripts/tests/test_io.lua
 	)
 
 add_executable(pixwerx WIN32 MACOSX_BUNDLE

src/io/src/image_io.cpp

@@ -1,13 +1,15 @@
 #include "pw/io/image_io.hpp"
 
+#include <pw/core/debug.hpp>
+
 #define STB_IMAGE_IMPLEMENTATION
 #include "stb_image.h"
-// #include "stb_image_write.h"
 
+#define STB_IMAGE_WRITE_IMPLEMENTATION
+ #include "stb_image_write.h"
 
 namespace pw {
 
-
 struct image_io::impl
 {
 
@@ -19,7 +21,8 @@ struct image_io::impl
 
         if (data) {
 
-            image r;
+			image r;
+
             r.create(sizei(x,y),image::pixel_layout::RGBA8,data);
             return r;
         }
@@ -29,6 +32,7 @@ struct image_io::impl
 
     bool write(const std::string& uri, uint32_t flags)
     {
+
         return false;
     }
 

src/scripting/src/script_system.cpp

@@ -3,6 +3,7 @@
 #include "pw/system/window.hpp"
 #include "pw/system/input.hpp"
 #include "pw/system/display.hpp"
+#include "pw/system/path.hpp"
 
 #include "runtime_lua.hpp"
 
@@ -38,6 +39,12 @@ void register_system_function(sol::state&, sol::table &ns)
                              "name",sol::readonly_property(&display::name)
                              );
 
+	ns.new_usertype<path>("path"
+						  ,"new", sol::no_constructor
+						  ,"get",&path::get
+						  ,"separator",sol::readonly_property(&path::separator)
+						  ,"executable_path",sol::readonly_property(&path::executable_path)
+						  );
 }
 
 

src/scripting/src/script_visual.cpp

@@ -1,6 +1,7 @@
 
 #include "pw/core/debug.hpp"
 #include "pw/visual/pipeline.hpp"
+#include "pw/visual/shader.hpp"
 
 #include "runtime_lua.hpp"
 
@@ -9,11 +10,20 @@ namespace pw {
 void register_visual_function(sol::state&,sol::table &ns)
 {
 
-    ns.new_usertype<pipeline>("pipeline",
-                              "create",&pipeline::create,
-                              "draw",&pipeline::draw
+	ns.new_usertype<pipeline>("pipeline"
+							  ,"create",&pipeline::create
+							  ,"draw",&pipeline::draw
                               );
 
+	ns.new_usertype<shader>("shader"
+							,"ready",sol::readonly_property(&shader::ready)
+							,"use",&shader::use
+							,"build",&shader::build
+							,"set_source",&shader::set_source
+							,"source",&shader::source
+							).new_enum("shader_type"
+									   ,"fragment",shader::fragment
+									   ,"vertex",shader::vertex);
 }
 
 PW_REGISTER_LUA(visual)

src/scripts/tests/test_io.lua

@@ -5,7 +5,9 @@
 -- loading our libraries
 pw.script:load_all()
 
-local img = pw.imageio:get():read("/home/hartmut/Development/pixwerx/share/assets/textures/checkerboard-512-32.png",0)
+local img = pw.imageio:get():read("/Users/hartmut/Code/pixwerx/share/assets/textures/checkerboard-512-32.png",0)
+
+--	pw.imageio:get():read("/home/hartmut/Development/pixwerx/share/assets/textures/checkerboard-512-32.png",0)
 
 print(img.size.width,img.size.height)
 

src/scripts/tests/test_system.lua

@@ -0,0 +1,9 @@
+--
+-- pixwerx - test - io
+--
+
+-- loading our libraries
+pw.script:load_all()
+
+
+print(pw.path:get().executable_path)

src/system/CMakeLists.txt

@@ -1,14 +1,16 @@
 
 set(hdrs
-	include/pw/system/window.hpp
-	include/pw/system/input.hpp
 	include/pw/system/display.hpp
+	include/pw/system/input.hpp
+	include/pw/system/path.hpp
+	include/pw/system/window.hpp
 	)
 
 set(srcs
 	src/display.cpp
-	src/window.cpp
+	src/path.cpp
 	src/input.cpp
+	src/window.cpp
 	)
 
 add_library(pwsystem

src/system/include/pw/system/path.hpp

@@ -0,0 +1,38 @@
+#ifndef PW_SYSTEM_PATH_HPP
+#define PW_SYSTEM_PATH_HPP
+
+#include <pw/core/globals.hpp>
+
+namespace pw {
+
+
+class path {
+public:
+
+	static path& get();
+	~path();
+
+	std::string separator();
+
+	std::string executable_path();
+
+	typedef std::vector<std::string> path_list;
+
+
+
+protected:
+
+	path_list _plugin_paths;
+	path_list _resource_paths;
+
+	path();
+
+	struct impl;
+	std::unique_ptr<impl> _impl;
+
+
+};
+
+}
+
+#endif

src/system/src/path.cpp

@@ -0,0 +1,94 @@
+#include "pw/system/path.hpp"
+
+#if defined(_WIN32) || defined(_WIN64) || defined(_WIN32_WCE)
+	#define WIN32_LEAN_AND_MEAN
+	#include <windows.h>
+	#include <tchar.h>
+	#include <direct.h>
+#elif defined(__APPLE__)
+	#include <CoreFoundation/CoreFoundation.h>
+	#include <unistd.h>
+	#if defined(__MACH__)
+		#include <mach/mach.h>
+	#endif
+//	#include "_host/helpers_osx.h"
+#elif defined(TP_HAVE_UNISTD_H)
+	#include <unistd.h>
+#else
+	// Unknown platform
+#endif
+
+namespace pw {
+
+
+struct path::impl {
+
+	path &host;
+
+	impl(path &host_) : host(host_) {}
+
+};
+
+
+
+//
+//
+//
+path &path::get()
+{
+	static path instance;
+	return instance;
+}
+
+path::~path()
+{
+}
+
+std::string path::separator()
+{
+#if defined(WIN32)
+	return std::string("\");
+#else
+	return std::string("/");
+#endif
+}
+
+std::string path::executable_path()
+{
+	std::string result;
+
+	const unsigned int MAXPATHLEN = 2048;
+	static char path[MAXPATHLEN];
+	memset(&path[0],0,MAXPATHLEN);
+
+#if defined(__APPLE__)
+	CFURLRef bundleURL;
+	CFStringRef pathStr;
+	CFBundleRef mainBundle = CFBundleGetMainBundle();
+
+	bundleURL = CFBundleCopyExecutableURL(mainBundle);
+	pathStr = CFURLCopyFileSystemPath(bundleURL, kCFURLPOSIXPathStyle);
+	CFStringGetCString(pathStr, path, MAXPATHLEN, kCFStringEncodingASCII);
+
+	result.assign(&path[0]);
+
+	CFRelease(pathStr);
+	CFRelease(bundleURL);
+
+#elif defined(_WIN32) || defined(_WIN64) || defined(_WIN32_WCE)
+	static TCHAR lpFname[MAXPATHLEN];
+	DWORD ret = GetModuleFileName( NULL, &lpFname[0], MAXPATHLEN );
+	result.assign(&lpFname[0]);
+#else
+	readlink("/proc/self/exe", path, sizeof(path));
+	result.assign(path);
+#endif
+	return result;
+}
+
+path::path()
+{
+	_impl = std::make_unique<impl>(*this);
+}
+
+}

src/visual/CMakeLists.txt

@@ -1,17 +1,17 @@
 
 set(hdrs
-	include/pw/visual/mesh_renderer.hpp
 	include/pw/visual/shader.hpp
 	include/pw/visual/pipeline.hpp
 	include/pw/visual/texture.hpp
+	include/pw/visual/vertex_array.hpp
 	)
 
 set(srcs
-	src/mesh_renderer.cpp
 	src/shader.cpp
 	src/context.cpp
 	src/pipeline.cpp
 	src/texture.cpp
+	src/vertex_array.cpp
 	)
 
 

src/visual/include/pw/visual/texture.hpp

@@ -19,6 +19,12 @@ class texture {
 		shape_3d
 	};
 
+	enum texture_dimension {
+		dimension_s,
+		dimension_t,
+		dimension_r
+	};
+
 	enum wrap_mode {
 		wrap_repeat,
 		wrap_clamp,
@@ -26,7 +32,6 @@ class texture {
 		wrap_clamp_to_repeat
 	};
 
-
 	texture();
 
 	texture(shared_ptr<image> i,texture_shape s,texture_type = color);

src/visual/include/pw/visual/vertex_array.hpp

@@ -8,12 +8,12 @@
 
 namespace pw {
 
-class mesh_renderer {
+class vertex_array {
 public:
+	vertex_array();
+	vertex_array(const mesh& m);
 
-
-	mesh_renderer();
-	~mesh_renderer();
+	~vertex_array();
 
 	bool ready() const;
 
@@ -22,13 +22,6 @@ public:
 
 	void draw();
 
-
-//	void render(const mesh& mesh,
-//				const matrix4x4& model_matrix,
-//				const matrix4x4& view_matrix,
-//				const matrix4x4& projection_matrix
-//				);
-
 protected:
 
 	struct impl;

src/visual/src/pipeline.cpp

@@ -6,12 +6,19 @@
 #include "pw/core/debug.hpp"
 #include "pw/visual/pipeline.hpp"
 #include "pw/visual/shader.hpp"
-#include "pw/visual/mesh_renderer.hpp"
+#include "pw/visual/vertex_array.hpp"
 
 #include "glad/glad.h"
 
 namespace pw {
 
+class command {
+
+//	shader
+// vertexarray
+
+};
+
 class queue {
 
 //	vector<commands> ...
@@ -25,7 +32,7 @@ struct triangle_renderer
 
     shader shader_p;
     mesh amesh;
-	mesh_renderer amesh_renderer;
+	vertex_array amesh_renderer;
 	timer::tick_t tick;
 
     triangle_renderer()

src/visual/src/vertex_array.cpp

@@ -1,4 +1,4 @@
-#include "pw/visual/mesh_renderer.hpp"
+#include "pw/visual/vertex_array.hpp"
 
 #include "pw/core/mesh.hpp"
 #include "pw/core/size.hpp"
@@ -9,8 +9,7 @@
 
 namespace pw {
 
-
-struct mesh_renderer::impl {
+struct vertex_array::impl {
 
 	GLuint _vao = 0;
 	std::vector<GLuint> _vbos;
@@ -85,31 +84,37 @@ struct mesh_renderer::impl {
 //
 //
 
-mesh_renderer::mesh_renderer()
-	: _impl(std::make_unique<mesh_renderer::impl>())
+vertex_array::vertex_array()
+	: _impl(std::make_unique<vertex_array::impl>())
 {
 }
 
-mesh_renderer::~mesh_renderer()
+vertex_array::vertex_array(const mesh &m)
+{
+	vertex_array();
+	_impl->create(m);
+}
+
+vertex_array::~vertex_array()
 {
 }
 
-bool mesh_renderer::ready() const
+bool vertex_array::ready() const
 {
 	return _impl->ready();
 }
 
-void mesh_renderer::create(const mesh &m)
+void vertex_array::create(const mesh &m)
 {
 	_impl->create(m);
 }
 
-void mesh_renderer::destroy()
+void vertex_array::destroy()
 {
 	_impl->destroy();
 }
 
-void mesh_renderer::draw()
+void vertex_array::draw()
 {
 	_impl->draw();
 }