No more persistent state

Author: Bernhard Kerbl

cuda_rasterizer/rasterizer.h

@@ -2,21 +2,25 @@
 #define CUDA_RASTERIZER_H_INCLUDED
 
 #include <vector>
+#include <functional>
 
 namespace CudaRasterizer
 {
 	class Rasterizer
 	{
 	public:
 
-		virtual void markVisible(
+		static void markVisible(
 			int P,
 			float* means3D,
 			float* viewmatrix,
 			float* projmatrix,
-			bool* present) = 0;
+			bool* present);
 
-		virtual void forward(
+		static int forward(
+			std::function<char* (int)> geometryBuffer,
+			std::function<char* (int)> binningBuffer,
+			std::function<char* (int)> imageBuffer,
 			const int P, int D, int M,
 			const float* background,
 			const int width, int height,
@@ -34,10 +38,10 @@ namespace CudaRasterizer
 			const float tan_fovx, float tan_fovy,
 			const bool prefiltered,
 			float* out_color,
-			int* radii = nullptr) = 0;
+			int* radii);
 
-		virtual void backward(
-			const int P, int D, int M,
+		static void backward(
+			const int P, int D, int M, int R,
 			const float* background,
 			const int width, int height,
 			const float* means3D,
@@ -47,11 +51,14 @@ namespace CudaRasterizer
 			const float scale_modifier,
 			const float* rotations,
 			const float* cov3D_precomp,
-			const float* viewmatrix, 
+			const float* viewmatrix,
 			const float* projmatrix,
 			const float* campos,
 			const float tan_fovx, float tan_fovy,
 			const int* radii,
+			char* geom_buffer,
+			char* binning_buffer,
+			char* image_buffer,
 			const float* dL_dpix,
 			float* dL_dmean2D,
 			float* dL_dconic,
@@ -61,11 +68,7 @@ namespace CudaRasterizer
 			float* dL_dcov3D,
 			float* dL_dsh,
 			float* dL_dscale,
-			float* dL_drot) = 0;
-
-		virtual ~Rasterizer() {};
-
-		static Rasterizer* make(int resizeMultipliyer = 2);
+			float* dL_drot);
 	};
 };