Add backends

- Renamed GfxOpenGL to GfxOPenGL2
- Added GfxOpenGL3 backend for OpenGL 3.3+
- Added WIP DirectX9 backend
- Added structure for Citro3D
- Added linear Allocator

source/common.cpp

@@ -1,6 +1,6 @@
 #include <iostream>
 #include <pd/common.hpp>
 
-void PD::Log(const std::string& txt) {
+PD_API void PD::Log(const std::string& txt) {
   std::cout << "[PD] " << txt << std::endl;
 }

source/drivers/gfx.cpp

@@ -3,19 +3,20 @@
 namespace PD {
 PD_API std::unique_ptr<GfxDriver> Gfx::driver;
 
-GfxDriver::GfxDriver(std::string_view name) : DriverInterface(name) {}
+PD_API GfxDriver::GfxDriver(std::string_view name) : DriverInterface(name) {}
 
-void GfxDriver::SetViewPort(const ivec2& size) {
+PD_API void GfxDriver::SetViewPort(const ivec2& size) {
   ViewPort = size;
   Projection = Mat4::Ortho(0.f, ViewPort.x, ViewPort.y, 0.f, 1.f, -1.f);
 }
-void GfxDriver::SetViewPort(int x, int y) {
+
+PD_API  void GfxDriver::SetViewPort(int x, int y) {
   ViewPort.x = x;
   ViewPort.y = y;
   Projection = Mat4::Ortho(0.f, ViewPort.x, ViewPort.y, 0.f, 1.f, -1.f);
 }
 
-void GfxDriver::Reset() {
+PD_API void GfxDriver::Reset() {
   CurrentVertex = 0;
   CurrentIndex = 0;
   ResetPools();

source/lithium/pools.cpp

@@ -9,16 +9,16 @@ namespace Li {
 PD::Pool<Vertex> pVtxPool;
 PD::Pool<u16> pIdxPool;
 
-void InitPools(size_t max_vertices) {
+PD_API void InitPools(size_t max_vertices) {
   pVtxPool.Init(max_vertices);
   pIdxPool.Init(max_vertices * 2);
 }
 
-Vertex* AllocateVertices(size_t count) { return pVtxPool.Allocate(count); }
+PD_API Vertex* AllocateVertices(size_t count) { return pVtxPool.Allocate(count); }
 
-u16* AllocateIndices(size_t count) { return pIdxPool.Allocate(count); }
+PD_API u16* AllocateIndices(size_t count) { return pIdxPool.Allocate(count); }
 
-void ResetPools() {
+PD_API void ResetPools() {
   pVtxPool.Reset();
   pIdxPool.Reset();
 }