Improved --print-platforms option.

src/backend/opencl/wrappers/OclLib.cpp

@@ -465,20 +465,7 @@ cl_uint xmrig::OclLib::getDeviceMaxComputeUnits(cl_device_id id)
 }
 
 
-std::vector<cl_platform_id> xmrig::OclLib::getPlatformIDs()
-{
-    const uint32_t count = getNumPlatforms();
-    std::vector<cl_platform_id> platforms(count);
-
-    if (count) {
-        OclLib::getPlatformIDs(count, platforms.data(), nullptr);
-    }
-
-    return platforms;
-}
-
-
-uint32_t xmrig::OclLib::getNumPlatforms()
+cl_uint xmrig::OclLib::getNumPlatforms()
 {
     cl_uint count = 0;
     cl_int ret;
@@ -518,6 +505,19 @@ xmrig::OclVendor xmrig::OclLib::getDeviceVendor(cl_device_id id)
 }
 
 
+std::vector<cl_platform_id> xmrig::OclLib::getPlatformIDs()
+{
+    const uint32_t count = getNumPlatforms();
+    std::vector<cl_platform_id> platforms(count);
+
+    if (count) {
+        OclLib::getPlatformIDs(count, platforms.data(), nullptr);
+    }
+
+    return platforms;
+}
+
+
 xmrig::String xmrig::OclLib::getDeviceBoardName(cl_device_id id)
 {
     constexpr size_t size = 128;
@@ -544,6 +544,20 @@ xmrig::String xmrig::OclLib::getDeviceName(cl_device_id id)
 }
 
 
+xmrig::String xmrig::OclLib::getPlatformInfo(cl_platform_id platform, cl_platform_info param_name)
+{
+    size_t size = 0;
+    if (getPlatformInfo(platform, param_name, 0, nullptr, &size) != CL_SUCCESS) {
+        return String();
+    }
+
+    char *buf = new char[size]();
+    OclLib::getPlatformInfo(platform, param_name, size, buf, nullptr);
+
+    return String(buf);
+}
+
+
 xmrig::String xmrig::OclLib::getProgramBuildLog(cl_program program, cl_device_id device)
 {
     size_t size = 0;

src/backend/opencl/wrappers/OclLib.h

@@ -66,11 +66,12 @@ public:
     static cl_program createProgramWithBinary(cl_context context, cl_uint num_devices, const cl_device_id *device_list, const size_t *lengths, const unsigned char **binaries, cl_int *binary_status, cl_int *errcode_ret);
     static cl_program createProgramWithSource(cl_context context, cl_uint count, const char **strings, const size_t *lengths, cl_int *errcode_ret);
     static cl_uint getDeviceMaxComputeUnits(cl_device_id id);
-    static std::vector<cl_platform_id> getPlatformIDs();
-    static uint32_t getNumPlatforms();
+    static cl_uint getNumPlatforms();
     static OclVendor getDeviceVendor(cl_device_id id);
+    static std::vector<cl_platform_id> getPlatformIDs();
     static String getDeviceBoardName(cl_device_id id);
     static String getDeviceName(cl_device_id id);
+    static String getPlatformInfo(cl_platform_id platform, cl_platform_info param_name);
     static String getProgramBuildLog(cl_program program, cl_device_id device);
 
 private:

src/backend/opencl/wrappers/OclPlatform.cpp

@@ -22,6 +22,10 @@
  *   along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+
+#include <stdio.h>
+
+
 #include "backend/opencl/wrappers/OclLib.h"
 #include "backend/opencl/wrappers/OclPlatform.h"
 
@@ -44,16 +48,48 @@ std::vector<xmrig::OclPlatform> xmrig::OclPlatform::get()
 }
 
 
+void xmrig::OclPlatform::print()
+{
+    const auto platforms = OclPlatform::get();
+
+    printf("%-28s%zu\n\n", "Number of platforms:", platforms.size());
+
+    for (const auto &platform : platforms) {
+        printf("  %-26s%zu\n",  "Index:",       platform.index());
+        printf("  %-26s%s\n",   "Profile:",     platform.profile().data());
+        printf("  %-26s%s\n",   "Version:",     platform.version().data());
+        printf("  %-26s%s\n",   "Name:",        platform.name().data());
+        printf("  %-26s%s\n",   "Vendor:",      platform.vendor().data());
+        printf("  %-26s%s\n\n", "Extensions:",  platform.extensions().data());
+    }
+}
+
+
+xmrig::String xmrig::OclPlatform::extensions() const
+{
+    return OclLib::getPlatformInfo(id(), CL_PLATFORM_EXTENSIONS);
+}
+
+
+xmrig::String xmrig::OclPlatform::name() const
+{
+    return OclLib::getPlatformInfo(id(), CL_PLATFORM_NAME);
+}
+
+
+xmrig::String xmrig::OclPlatform::profile() const
+{
+    return OclLib::getPlatformInfo(id(), CL_PLATFORM_PROFILE);
+}
+
+
 xmrig::String xmrig::OclPlatform::vendor() const
 {
-    constexpr size_t size = 128;
-    char *buf = new char[size]();
-
-    if (OclLib::getPlatformInfo(id(), CL_PLATFORM_VENDOR, size, buf, nullptr) != CL_SUCCESS) {
-        delete [] buf;
-
-        return String();
-    }
-
-    return String(buf);
+    return OclLib::getPlatformInfo(id(), CL_PLATFORM_VENDOR);
+}
+
+
+xmrig::String xmrig::OclPlatform::version() const
+{
+    return OclLib::getPlatformInfo(id(), CL_PLATFORM_VERSION);
 }

src/backend/opencl/wrappers/OclPlatform.h

@@ -45,11 +45,16 @@ public:
     OclPlatform(size_t index, cl_platform_id id) : m_id(id), m_index(index) {}
 
     static std::vector<OclPlatform> get();
+    static void print();
 
     inline cl_platform_id id() const { return m_id; }
     inline size_t index() const      { return m_index; }
 
+    String extensions() const;
+    String name() const;
+    String profile() const;
     String vendor() const;
+    String version() const;
 
 private:
     cl_platform_id m_id = nullptr;

src/base/kernel/Entry.cpp

@@ -49,17 +49,6 @@
 namespace xmrig {
 
 
-#ifdef XMRIG_FEATURE_OPENCL
-static void printPlatforms()
-{
-    const auto platforms = OclPlatform::get();
-    for (const auto &platform : platforms) {
-        printf("#%zu: %s\n", platform.index(), platform.vendor().data());
-    }
-}
-#endif
-
-
 static int showVersion()
 {
     printf(APP_NAME " " APP_VERSION "\n built on " __DATE__
@@ -186,7 +175,7 @@ int xmrig::Entry::exec(const Process &process, Id id)
 #   ifdef XMRIG_FEATURE_OPENCL
     case Platforms:
         if (OclLib::init()) {
-            printPlatforms();
+            OclPlatform::print();
         }
         return 0;
 #   endif