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metal physical device properties function

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This commit is contained in:
Gregory Wells
2025-09-17 13:37:50 -04:00
parent 88bdbe1e64
commit f7e71b77c2
3 changed files with 21 additions and 32 deletions
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2
projects/apis/metal/loader/metal_instance_loader.m
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@@ -8,6 +8,8 @@ gryphnInstanceFunctionLayers metalLoadAPILayer(void) {
.createInstance = metalCreateInstance,
.queryDevices = metalQueryDevices,
.destroyInstance = metalDestroyInstance,
// .isSuitable = metalIsInstanceSuitable,
.getPhysicalDeviceProperties = metalQueryPhysicalDeviceProperties,
.next = NULL
};
}

1
projects/apis/metal/src/devices/metal_output_devices.h
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@@ -5,6 +5,7 @@
#include <MetalKit/MetalKit.h>
typedef id<MTLDevice> mtlDevice;
gnPhysicalDeviceProperties metalQueryPhysicalDeviceProperties(gnInstance instance, gnPhysicalDeviceHandle device, gryphnInstanceFunctionLayers* layers);
struct gnPlatformOutputDevice_t {
id<MTLDevice> device;

50
projects/apis/metal/src/devices/metal_physical_device.m
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@@ -3,39 +3,25 @@
#include "metal_output_devices.h"
#include "window_surface/gryphn_surface.h"
// gnPhysicalDevice* getMetalDevices(gnInstanceHandle instance, uint32_t* deviceCount) {
// if (instance == GN_NULL_HANDLE) return NULL;
// i made some educated guesses on these conversions and I dont think they are going to work
// but for now im worried about the MVP
gnPhysicalDeviceType metalDeviceLocationToGryphn(MTLDeviceLocation location) {
switch (location) {
case MTLDeviceLocationBuiltIn: return GN_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU;
case MTLDeviceLocationSlot: return GN_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU;
case MTLDeviceLocationExternal: return GN_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU;
case MTLDeviceLocationUnspecified: return GN_PHYSICAL_DEVICE_TYPE_FAKED_GPU; //very bad if we get here
}
}
// NSArray *devices = MTLCopyAllDevices();
// *deviceCount = (uint32_t)[devices count];
// gnPhysicalDevice* devicesList = (gnPhysicalDevice*)malloc(sizeof(gnPhysicalDevice) * *deviceCount);
// for (uint32_t i = 0; i < *deviceCount; i++) {
// devicesList[i] = (uint64_t)[devices objectAtIndex:0];
// mtlDevice device = (mtlDevice)devicesList[i];
// devicesList[i]->properties.name = gnCreateString([[device name] cStringUsingEncoding:NSUTF8StringEncoding]);
// MTLDeviceLocation deviceLocation = device.locationNumber;
// if (deviceLocation == MTLDeviceLocationBuiltIn)
// devicesList[i]->properties.deviceType = GN_INTEGRATED_DEVICE;
// else if (deviceLocation == MTLDeviceLocationSlot)
// devicesList[i]->properties.deviceType = GN_DEDICATED_DEVICE;
// else if (deviceLocation == MTLDeviceLocationExternal)
// devicesList[i]->properties.deviceType = GN_EXTERNAL_DEVICE;
// devicesList[i]->features.maxColorSamples = GN_SAMPLE_BIT_1;
// if ([device supportsTextureSampleCount:2]) { devicesList[i]->features.maxColorSamples |= GN_SAMPLE_BIT_2; } else {}
// if ([device supportsTextureSampleCount:4]) { devicesList[i]->features.maxColorSamples |= GN_SAMPLE_BIT_4; } else {}
// if ([device supportsTextureSampleCount:8]) { devicesList[i]->features.maxColorSamples |= GN_SAMPLE_BIT_8; } else {}
// if ([device supportsTextureSampleCount:16]) { devicesList[i]->features.maxColorSamples |= GN_SAMPLE_BIT_16; } else {}
// if ([device supportsTextureSampleCount:32]) { devicesList[i]->features.maxColorSamples |= GN_SAMPLE_BIT_32; } else {}
// devicesList[i]->features.maxDepthSamples = devicesList[i]->features.maxColorSamples;
// devicesList[i]->features.maxMemoryAllocations = 0x40000000;
// devicesList[i]->features.maxPushConstantSize = 4096;
// }
// [devices release];
// return devicesList;
// }
gnPhysicalDeviceProperties metalQueryPhysicalDeviceProperties(gnInstance instance, gnPhysicalDeviceHandle device, gryphnInstanceFunctionLayers* layers) {
return (gnPhysicalDeviceProperties){
.deviceID = ((mtlDevice)device).registryID,
.deviceName = gnCreateString(((mtlDevice)device).name.UTF8String),
.deviceType = metalDeviceLocationToGryphn(((mtlDevice)device).location),
.driverVersion = ((mtlDevice)device).hash // very bad hack, me should not do this
};
}
gnBool metalCanDevicePresent(gnPhysicalDevice device, gnWindowSurface windowSurface) {
if (device == GN_NULL_HANDLE || windowSurface == GN_NULL_HANDLE) return GN_FALSE;