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kk: Query device for supported sample counts

Browse source 
Instead of hard-coding supported samples, check the Metal device.

Reviewed-by: Aitor Camacho <aitor@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41534>
This commit is contained in:
squidbus 2026-05-13 03:26:30 -07:00
parent ccef88173b
commit e9d96125e2
4 changed files with 24 additions and 6 deletions
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2
src/kosmickrisp/bridge/mtl_device.h
View file

@ -9,6 +9,7 @@
#include "mtl_types.h"
#include <stdbool.h>
#include <stdint.h>
/* TODO_KOSMICKRISP Remove */
@ -27,6 +28,7 @@ void mtl_device_get_architecture_name(mtl_device *dev, char buffer[256]);
uint64_t mtl_device_get_peer_group_id(mtl_device *dev);
uint32_t mtl_device_get_peer_index(mtl_device *dev);
uint64_t mtl_device_get_registry_id(mtl_device *dev);
bool mtl_device_supports_sample_count(mtl_device *dev, uint32_t sample_count);
struct mtl_size mtl_device_max_threads_per_threadgroup(mtl_device *dev);
uint32_t mtl_device_max_threadgroup_memory_length(mtl_device *dev);
uint64_t mtl_device_max_buffer_length(mtl_device *dev);

9
src/kosmickrisp/bridge/mtl_device.m
View file

@ -118,6 +118,15 @@ mtl_device_get_registry_id(mtl_device *dev)
}
}
bool
mtl_device_supports_sample_count(mtl_device *dev, uint32_t sample_count)
{
@autoreleasepool {
id<MTLDevice> device = (id<MTLDevice>)dev;
return [device supportsTextureSampleCount:sample_count];
}
}
struct mtl_size
mtl_device_max_threads_per_threadgroup(mtl_device *dev)
{

6
src/kosmickrisp/bridge/stubs/mtl_device.c
View file

@ -53,6 +53,12 @@ mtl_device_get_registry_id(mtl_device *dev)
return 0u;
}
bool
mtl_device_supports_sample_count(mtl_device *dev, uint32_t sample_count)
{
return false;
}
struct mtl_size
mtl_device_max_threads_per_threadgroup(mtl_device *dev)
{

13
src/kosmickrisp/vulkan/kk_physical_device.c
View file

@ -365,12 +365,13 @@ kk_get_device_properties(const struct kk_physical_device *pdev,
const struct kk_instance *instance,
struct vk_properties *properties)
{
const VkSampleCountFlagBits sample_counts =
VK_SAMPLE_COUNT_1_BIT | VK_SAMPLE_COUNT_2_BIT |
// TODO_KOSMICKRISP Modify sample count based on what pdev supports
VK_SAMPLE_COUNT_4_BIT /* |
VK_SAMPLE_COUNT_8_BIT */
;
VkSampleCountFlagBits sample_counts = VK_SAMPLE_COUNT_1_BIT;
for (uint32_t sample_count = VK_SAMPLE_COUNT_2_BIT;
sample_count <= VK_SAMPLE_COUNT_8_BIT; sample_count <<= 1) {
if (mtl_device_supports_sample_count(pdev->mtl_dev_handle,
sample_count))
sample_counts |= sample_count;
}
assert(sample_counts <= (KK_MAX_SAMPLES << 1) - 1);