Implement some GPU detection stuff

OpenGL is literal hell on earth, I cri everytiem

Ref: #2

Makefile

@@ -31,16 +31,16 @@ stlib : $(BUILD)/libinfoware$(ARCH)
 
 
 $(BUILD)/$(PREDLL)infoware$(DLL) : $(OBJECTS)
-	$(CXX) $(CXXAR) -shared $(PIC) -o$@ $^
+	$(CXX) $(CXXAR) -shared $(PIC) -o$@ $^ $(LDAR)
 
 $(BUILD)/libinfoware$(ARCH) : $(OBJECTS)
 	$(AR) crs $@ $^
 
 
 $(BUILD)/obj/%$(OBJ) : src/%.cpp
 	@mkdir -p $(dir $@)
-	$(CXX) $(CXXAR) $(PIC) -Iinclude -c -o$@ $^
+	$(CXX) $(CXXAR) $(CXXAR_LIB) $(PIC) -Iinclude -c -o$@ $^
 
 $(BUILD)/examples/%$(EXE) : examples/%.cpp $(OBJECTS)
 	@mkdir -p $(dir $@)
-	$(CXX) $(CXXAR) -Iinclude -o$@ $^
+	$(CXX) $(CXXAR) -Iinclude -o$@ $^ $(LDAR)

configMakefile

@@ -11,26 +11,37 @@
 
 
 ifeq "$(OS)" "Windows_NT"
-	DLL = .dll
-	PREDLL =
-	PIC =
-	EXE = .exe
+	DLL := .dll
+	PREDLL :=
+	PIC :=
+	EXE := .exe
 else
-	PREDLL = lib
-	PIC = -fPIC
+	PREDLL := lib
+	PIC := -fPIC
 	ifeq "$(OS)" "Darwin"
-		DLL = .dylib
+		DLL := .dylib
 	else
-		DLL = .so
+		DLL := .so
 	endif
-	EXE =
+	EXE :=
 endif
 
 ifeq "$(BUILD)" ""
-	BUILD = out
+	BUILD := out
 endif
 
-OBJ = .o
-ARCH = .a
-AR = ar
-CXXAR = -pedantic -O3 -fomit-frame-pointer -std=c++14 -Wall -Wextra -pipe
+ifdef USE_OPENCL
+	LDAR_OPENCL := -lOpenCL
+	CXXAR_OPENCL := -DINFOWARE_USE_OPENCL
+else
+	LDAR_OPENCL :=
+	CXXAR_OPENCL :=
+endif
+
+LDAR := $(LDAR_OPENCL)
+CXXAR_LIB := $(CXXAR_OPENCL)
+
+OBJ := .o
+ARCH := .a
+AR := ar
+CXXAR := -pedantic -O3 -fomit-frame-pointer -std=c++14 -Wall -Wextra -pipe

examples/gpu_device_properties_cache_size.cpp

@@ -0,0 +1,21 @@
+// infoware - C++ System information Library
+//
+// Written in 2016 by nabijaczleweli <[email protected]> and ThePhD <[email protected]>
+//
+// To the extent possible under law, the author(s) have dedicated all copyright and related
+// and neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication along with this software.
+// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>
+
+
+#include "infoware/gpu.hpp"
+#include <iostream>
+
+
+int main() {
+	for(auto&& props : iware::gpu::device_properties())
+		std::cout << props.cache_size << ' ';
+	std::cout << '\n';
+}

examples/gpu_device_properties_memory_size.cpp

@@ -0,0 +1,21 @@
+// infoware - C++ System information Library
+//
+// Written in 2016 by nabijaczleweli <[email protected]> and ThePhD <[email protected]>
+//
+// To the extent possible under law, the author(s) have dedicated all copyright and related
+// and neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication along with this software.
+// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>
+
+
+#include "infoware/gpu.hpp"
+#include <iostream>
+
+
+int main() {
+	for(auto&& props : iware::gpu::device_properties())
+		std::cout << props.memory_size << ' ';
+	std::cout << '\n';
+}

examples/gpu_device_properties_name.cpp

@@ -0,0 +1,21 @@
+// infoware - C++ System information Library
+//
+// Written in 2016 by nabijaczleweli <[email protected]> and ThePhD <[email protected]>
+//
+// To the extent possible under law, the author(s) have dedicated all copyright and related
+// and neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication along with this software.
+// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>
+
+
+#include "infoware/gpu.hpp"
+#include <iostream>
+
+
+int main() {
+	for(auto&& props : iware::gpu::device_properties())
+		std::cout << props.name << ' ';
+	std::cout << '\n';
+}

examples/gpu_device_properties_vendor.cpp

@@ -0,0 +1,34 @@
+// infoware - C++ System information Library
+//
+// Written in 2016 by nabijaczleweli <[email protected]> and ThePhD <[email protected]>
+//
+// To the extent possible under law, the author(s) have dedicated all copyright and related
+// and neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication along with this software.
+// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>
+
+
+#include "infoware/gpu.hpp"
+#include <iostream>
+
+
+int main() {
+	for(auto&& props : iware::gpu::device_properties())
+		switch(props.vendor) {
+			case iware::gpu::vendor_t::intel:
+				std::cout << "Intel ";
+				break;
+			case iware::gpu::vendor_t::AMD:
+				std::cout << "AMD ";
+				break;
+			case iware::gpu::vendor_t::NVidia:
+				std::cout << "NVidia ";
+				break;
+			case iware::gpu::vendor_t::unknown:
+				std::cout << "Unknown ";
+				break;
+		}
+	std::cout << '\n';
+}

include/infoware/gpu.hpp

@@ -0,0 +1,41 @@
+// infoware - C++ System information Library
+//
+// Written in 2016 by nabijaczleweli <[email protected]> and ThePhD <[email protected]>
+//
+// To the extent possible under law, the author(s) have dedicated all copyright and related
+// and neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication along with this software.
+// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>
+
+
+#pragma once
+
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+
+namespace iware {
+	namespace gpu {
+		enum class vendor_t {
+			intel,
+			AMD,
+			NVidia,
+			unknown,
+		};
+
+		struct device_properties_t {
+			vendor_t vendor;
+			std::string name;
+			std::size_t memory_size;
+			std::size_t cache_size;
+		};
+
+
+		/// Returns all GPU's properties.
+		std::vector<device_properties_t> device_properties();
+	}
+}

include/infoware/infoware.hpp

@@ -14,4 +14,5 @@
 
 
 #include "cpu.hpp"
+#include "gpu.hpp"
 #include "system.hpp"

src/gpu/memory/OpenCL.cpp

@@ -0,0 +1,67 @@
+// infoware - C++ System information Library
+//
+// Written in 2016 by nabijaczleweli <[email protected]> and ThePhD <[email protected]>
+//
+// To the extent possible under law, the author(s) have dedicated all copyright and related
+// and neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication along with this software.
+// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>
+
+
+#ifdef INFOWARE_USE_OPENCL
+
+
+#include "infoware/gpu.hpp"
+#include <cstdlib>
+#ifdef __APPLE__
+#include <OpenCL/opencl.h>
+#else
+#include <CL/cl.h>
+#endif
+
+
+static iware::gpu::vendor_t parse_vendor(const char* name) {
+	if(!strcmp(name, "Intel(R) Corporation"))
+		return iware::gpu::vendor_t::intel;
+	else if(!strcmp(name, "Advanced Micro Devices, Inc."))
+		return iware::gpu::vendor_t::AMD;
+	else if(!strcmp(name, "NVIDIA Corporation"))
+		return iware::gpu::vendor_t::NVidia;
+	else
+		return iware::gpu::vendor_t::unknown;
+}
+
+
+std::vector<iware::gpu::device_properties_t> iware::gpu::device_properties() {
+	cl_platform_id platforms[64];
+	cl_uint platforms_used;
+	clGetPlatformIDs(sizeof platforms / sizeof(*platforms), platforms, &platforms_used);
+
+	std::vector<iware::gpu::device_properties_t> ret;
+	for(auto i = 0u; i < platforms_used; ++i) {
+		cl_device_id devices[64];
+		cl_uint devices_used;
+		clGetDeviceIDs(platforms[i], CL_DEVICE_TYPE_GPU, sizeof devices / sizeof(*devices), devices, &devices_used);
+
+		for(auto j = 0u; j < devices_used; ++j) {
+			char name[256];
+			cl_ulong cache;
+			cl_ulong memory;
+
+			clGetDeviceInfo(devices[j], CL_DEVICE_GLOBAL_MEM_CACHE_SIZE, sizeof(cache), &cache, nullptr);
+			clGetDeviceInfo(devices[j], CL_DEVICE_GLOBAL_MEM_SIZE, sizeof(memory), &memory, nullptr);
+			clGetDeviceInfo(devices[j], CL_DEVICE_VENDOR, sizeof name, &name, nullptr);
+			const auto vendor = parse_vendor(name);
+			clGetDeviceInfo(devices[j], CL_DEVICE_NAME, sizeof name, &name, nullptr);
+
+			ret.push_back({vendor, name, memory, cache});
+		}
+	}
+
+	return ret;
+}
+
+
+#endif

src/gpu/memory/OpenGL.cpp

@@ -0,0 +1,14 @@
+// infoware - C++ System information Library
+//
+// Written in 2016 by nabijaczleweli <[email protected]> and ThePhD <[email protected]>
+//
+// To the extent possible under law, the author(s) have dedicated all copyright and related
+// and neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication along with this software.
+// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>
+
+
+// OpenGL is literaly hitler to initialise a windowless context for, so no game.
+// Leave it for someone smarter than me :G

src/gpu/memory/blank_all.cpp

@@ -0,0 +1,24 @@
+// infoware - C++ System information Library
+//
+// Written in 2016 by nabijaczleweli <[email protected]> and ThePhD <[email protected]>
+//
+// To the extent possible under law, the author(s) have dedicated all copyright and related
+// and neighboring rights to this software to the public domain worldwide. This software is
+// distributed without any warranty.
+//
+// You should have received a copy of the CC0 Public Domain Dedication along with this software.
+// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>
+
+
+#ifndef INFOWARE_USE_OPENCL
+
+
+#include "infoware/gpu.hpp"
+
+
+std::vector<iware::gpu::device_properties_t> iware::gpu::device_properties() {
+	return {};
+}
+
+
+#endif