mitchellhansen/voxel-raycaster
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cleaned up an unused file, added check for sharing

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This commit is contained in:
MitchellHansen
2016-10-10 23:14:45 -07:00
parent de2f0ad6a1
commit c734614e5f
6 changed files with 104 additions and 210 deletions
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85
src/CL_Wrapper.cpp
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@@ -1,12 +1,24 @@
#include "CL_Wrapper.h"
CL_Wrapper::CL_Wrapper() {
acquire_platform_and_device();
if (cl_khr_gl_sharing_fallback){
create_cl_context();
} else {
create_shared_context();
}
create_command_queue();
}
CL_Wrapper::~CL_Wrapper() {
}
int CL_Wrapper::acquire_platform_and_device(){
// Get the number of platforms
@@ -88,37 +100,72 @@ int CL_Wrapper::acquire_platform_and_device(){
platform_id = current_best_device.platform;
device_id = current_best_device.id;
// Test for sharing
size_t ext_str_size = 1024;
char *ext_str = new char[ext_str_size];
clGetDeviceInfo(device_id, CL_DEVICE_EXTENSIONS, ext_str_size, ext_str, &ext_str_size);
if (std::string(ext_str).find("cl_khr_gl_sharing") == std::string::npos){
std::cout << "No support for the cl_khr_gl_sharing extension";
cl_khr_gl_sharing_fallback = true;
}
delete ext_str;
return 1;
};
int CL_Wrapper::create_cl_context() {
// If the device doesn't support sharing then we have to create a regular context
cl_context_properties context_properties[] = {
CL_CONTEXT_PLATFORM, (cl_context_properties)platform_id
};
context = clCreateContext(
context_properties,
1,
&device_id,
nullptr, nullptr,
&error
);
if (assert(error, "clCreateContext"))
return -1;
return 0;
}
int CL_Wrapper::create_shared_context() {
// Hurray for standards!
// Setup the context properties to grab the current GL context
#ifdef linux
cl_context_properties context_properties[] = {
CL_GL_CONTEXT_KHR, (cl_context_properties)glXGetCurrentContext(),
CL_GLX_DISPLAY_KHR, (cl_context_properties)glXGetCurrentDisplay(),
CL_CONTEXT_PLATFORM, (cl_context_properties)platform,
CL_CONTEXT_PLATFORM, (cl_context_properties)platform_id,
0
};
#elif defined _WIN32
// TODO: Clean this up next time I'm on a windows machine
//cl_context_properties context_properties[] = {
// CL_CONTEXT_PLATFORM, (cl_context_properties) platformIds[0],
// CL_GL_CONTEXT_KHR, (cl_context_properties) wglGetCurrentContext(),
// CL_WGL_HDC_KHR, (cl_context_properties) wglGetCurrentDC(),
// 0
//};
HGLRC hGLRC = wglGetCurrentContext();
HDC hDC = wglGetCurrentDC();
cl_context_properties context_properties[] = { CL_CONTEXT_PLATFORM, (cl_context_properties)platform_id, CL_GL_CONTEXT_KHR, (cl_context_properties)hGLRC, CL_WGL_HDC_KHR, (cl_context_properties)hDC, 0 };
cl_context_properties context_properties[] = {
CL_CONTEXT_PLATFORM, (cl_context_properties)platform_id,
CL_GL_CONTEXT_KHR, (cl_context_properties)hGLRC,
CL_WGL_HDC_KHR, (cl_context_properties)hDC,
0
};
#elif defined TARGET_OS_MAC
CGLContextObj glContext = CGLGetCurrentContext();
CGLShareGroupObj shareGroup = CGLGetShareGroup(glContext);
cl_context_properties context_properties[] = {
@@ -237,9 +284,9 @@ int CL_Wrapper::set_kernel_arg(
int CL_Wrapper::create_buffer(std::string buffer_name, cl_uint size, void* data, cl_mem_flags flags) {
cl_mem buff = clCreateBuffer(
getContext(), flags,
size, data, &error
cl_mem buff = clCreateBuffer(
getContext(), flags,
size, data, &error
);
if (assert(error, "clCreateBuffer"))
@@ -253,9 +300,9 @@ int CL_Wrapper::create_buffer(std::string buffer_name, cl_uint size, void* data,
int CL_Wrapper::create_buffer(std::string buffer_name, cl_uint size, void* data) {
cl_mem buff = clCreateBuffer(
getContext(), CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
size, data, &error
cl_mem buff = clCreateBuffer(
getContext(), CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
size, data, &error
);
if (assert(error, "clCreateBuffer"))
@@ -278,8 +325,8 @@ int CL_Wrapper::run_kernel(std::string kernel_name, const int work_size){
cl_kernel kernel = kernel_map.at(kernel_name);
error = clEnqueueAcquireGLObjects(getCommandQueue(), 1, &buffer_map.at("image_buffer"), 0, 0, 0);
if (assert(error, "clEnqueueAcquireGLObjects"))
error = clEnqueueAcquireGLObjects(getCommandQueue(), 1, &buffer_map.at("image_buffer"), 0, 0, 0);
if (assert(error, "clEnqueueAcquireGLObjects"))
return -1;
//error = clEnqueueTask(command_queue, kernel, 0, NULL, NULL);
@@ -294,8 +341,8 @@ int CL_Wrapper::run_kernel(std::string kernel_name, const int work_size){
clFinish(getCommandQueue());
// What if errors out and gl objects are never released?
error = clEnqueueReleaseGLObjects(getCommandQueue(), 1, &buffer_map.at("image_buffer"), 0, NULL, NULL);
if (assert(error, "clEnqueueReleaseGLObjects"))
error = clEnqueueReleaseGLObjects(getCommandQueue(), 1, &buffer_map.at("image_buffer"), 0, NULL, NULL);
if (assert(error, "clEnqueueReleaseGLObjects"))
return -1;
return 1;