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#pragma once
#include <raycaster/RayCaster.h>
#include <vector>
#include <iostream>
#include "util.hpp"
#include <map>
#include <string.h>
#ifdef linux
#include <CL/cl.h>
#include <CL/opencl.h>
#include <GL/glx.h>
#elif defined _WIN32
#include <CL/cl_gl.h>
#include <CL/cl.h>
#include <CL/opencl.h>
// Note: windows.h must be included before Gl/GL.h
#include <windows.h>
#include <GL/GL.h>
#elif defined TARGET_OS_MAC
# include <OpenGL/OpenGL.h>
# include <OpenCL/opencl.h>
#endif
struct device {
cl_device_id id;
cl_device_type type;
cl_uint clock_frequency;
char version[128];
cl_platform_id platform;
cl_uint comp_units;
};
struct PackedData;
class Hardware_Caster : public RayCaster
{
public:
Hardware_Caster();
virtual ~Hardware_Caster();
int init() override;
// In interop mode, this will create a GL texture that we share
// Otherwise, it will create the pixel buffer and pass that in as an image, retrieving it each draw
// Both will create the view matrix, view res buffer
void create_viewport(int width, int height, float v_fov, float h_fov) override;
void assign_lights(std::vector<PackedData> *data) override;
void assign_map(Old_Map *map) override;
void assign_camera(Camera *camera) override;
void validate() override;
// TODO: Hoist this to the base class
void create_texture_atlas(sf::Texture *t, sf::Vector2i tile_dim);
// draw will abstract the gl sharing and software rendering
// methods of retrieving the screen buffer
void compute() override;
void draw(sf::RenderWindow* window) override;
int debug_quick_recompile();
void test_edit_viewport(int width, int height, float v_fov, float h_fov);
private:
int acquire_platform_and_device();
int create_shared_context();
int create_command_queue();
int check_cl_khr_gl_sharing();
int create_image_buffer(std::string buffer_name, cl_uint size, sf::Texture* texture, cl_int access_type);
int create_buffer(std::string buffer_name, cl_uint size, void* data);
int create_buffer(std::string buffer_name, cl_uint size, void* data, cl_mem_flags flags);
int store_buffer(cl_mem, std::string buffer_name);
int release_buffer(std::string buffer_name);
int compile_kernel(std::string kernel_source, bool is_path, std::string kernel_name);
int set_kernel_arg(std::string kernel_name, int index, std::string buffer_name);
int run_kernel(std::string kernel_name, const int work_size);
void print_kernel_arguments();
bool assert(int error_code, std::string function_name);
cl_device_id getDeviceID();
cl_platform_id getPlatformID();
cl_context getContext();
cl_kernel getKernel(std::string kernel_name);
cl_command_queue getCommandQueue();
cl_platform_id platform_id;
cl_device_id device_id;
cl_context context;
cl_command_queue command_queue;
std::map<std::string, cl_kernel> kernel_map;
std::map<std::string, cl_mem> buffer_map;
};