mitchellhansen/voxel-raycaster
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Getting things passed over to cl. No vector4 datatype in sfml,

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and cl only passes by even numbers of vectors. Update to 2.4? or
make my own sf::Vector4?
This commit is contained in:
mitchellhansen
2016-08-30 20:43:35 -07:00
parent 0b9010b007
commit 11146a6551
2 changed files with 90 additions and 6 deletions
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82
src/main.cpp
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@@ -4,7 +4,6 @@
#include <sstream>
#include <SFML/Graphics.hpp>
#ifdef linux
#include <CL/cl.h>
#include <CL/opencl.h>
@@ -47,11 +46,90 @@ int main(){
std::string in = "hello!!!!!!!!!!!!!!!!!!!!!";
cl_mem buff = clCreateBuffer(
c.getContext(), CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR,
sizeof(char) * 128, &in[0], NULL);
sizeof(char) * 128, &in[0], NULL
);
char map[100 * 100 * 100];
for (int i = 0; i < 100*100*100; i++){
map[i] = '+';
}
map[0] = 'a';
cl_mem map_buff = clCreateBuffer(
c.getContext(), CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
sizeof(char) * 100*100*100, map, NULL
);
int dim[3] = {101, 100, 99};
cl_mem dim_buff = clCreateBuffer(
c.getContext(), CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
sizeof(int) * 3, dim, NULL
);
int res[2] = {100, 99};
cl_mem res_buff = clCreateBuffer(
c.getContext(), CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
sizeof(int) * 2, res, NULL
);
double y_increment_radians = DegreesToRadians(50.0 / res[1]);
double x_increment_radians = DegreesToRadians(80.0 / res[0]);
// SFML 2.4 has Vector4 datatypes.......
sf::Vector3f* view_plane_vectors = new sf::Vector3f[res[0] * res[1]];
for (int y = -res[1] / 2 ; y < res[1] / 2; y++) {
for (int x = -res[0] / 2; x < res[0] / 2; x++) {
// The base ray direction to slew from
sf::Vector3f ray(1, 0, 0);
// Y axis, pitch
ray = sf::Vector3f(
ray.z * sin(y_increment_radians * y) + ray.x * cos(y_increment_radians * y),
ray.y,
ray.z * cos(y_increment_radians * y) - ray.x * sin(y_increment_radians * y)
);
// Z axis, yaw
ray = sf::Vector3f(
ray.x * cos(x_increment_radians * x) - ray.y * sin(x_increment_radians * x),
ray.x * sin(x_increment_radians * x) + ray.y * cos(x_increment_radians * x),
ray.z
);
int index = (x + res[0] / 2) + res[0] * (y + res[1] / 2);
view_plane_vectors[index] = Normalize(ray);
}
}
int ind = 1;
std::cout << "\nX: " << view_plane_vectors[ind].x
<< "\nY: " << view_plane_vectors[ind].y
<< "\nZ: " << view_plane_vectors[ind].z;
std::cout << "\n======================" << std::endl;
cl_mem view_matrix_buff = clCreateBuffer(
c.getContext(), CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
sizeof(float) * 3 * res[0] * res[1], &view_plane_vectors[0], NULL
);
c.store_buffer(buff, "buffer_1");
c.store_buffer(map_buff, "map_buffer");
c.store_buffer(dim_buff, "dim_buffer");
c.store_buffer(res_buff, "res_buffer");
c.store_buffer(view_matrix_buff, "view_matrix_buffer");
c.set_kernel_arg("min_kern", 0, "buffer_1");
c.set_kernel_arg("min_kern", 1, "map_buffer");
c.set_kernel_arg("min_kern", 2, "dim_buffer");
c.set_kernel_arg("min_kern", 3, "res_buffer");
c.set_kernel_arg("min_kern", 4, "view_matrix_buffer");
c.run_kernel("min_kern");