[vk, qcom] Memory, Samplers, BindingBuffers and UniformBufferAlignment set by hardware capabilities for QCOM. (#3280)

This PR adjust resources usage of Eden based on driver specification, improving stability and smarter resources usage, extends the amount of TotalPipelineWorkers on Android.

Co-authored-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3280
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: DraVee <dravee@eden-emu.dev>
Co-authored-by: CamilleLaVey <camillelavey99@gmail.com>
Co-committed-by: CamilleLaVey <camillelavey99@gmail.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/video_core/vulkan_common/vulkan_device.cpp b/src/video_core/vulkan_common/vulkan_device.cpp
index d68cc4b9a4..2ae5052640 100644
--- a/src/video_core/vulkan_common/vulkan_device.cpp
+++ b/src/video_core/vulkan_common/vulkan_device.cpp
@@ -605,6 +605,18 @@ Device::Device(VkInstance instance_, vk::PhysicalDevice physical_, VkSurfaceKHR
         if (version < VK_MAKE_API_VERSION(0, 255, 615, 512)) {
             has_broken_parallel_compiling = true;
         }
+        const size_t sampler_limit = properties.properties.limits.maxSamplerAllocationCount;
+        if (sampler_limit > 0) {
+            constexpr size_t MIN_SAMPLER_BUDGET = 1024U;
+            const size_t reserved = sampler_limit / 4U;
+            const size_t derived_budget =
+                (std::max)(MIN_SAMPLER_BUDGET, sampler_limit - reserved);
+            sampler_heap_budget = derived_budget;
+            LOG_WARNING(Render_Vulkan,
+                        "Qualcomm driver reports max {} samplers; reserving {} (25%) and "
+                        "allowing Eden to use {} (75%) to avoid heap exhaustion",
+                        sampler_limit, reserved, sampler_heap_budget);
+        }
     }
 
     if (extensions.sampler_filter_minmax && is_amd) {
@@ -1529,6 +1541,13 @@ void Device::SetupFamilies(VkSurfaceKHR surface) {
     }
 }
 
+std::optional<size_t> Device::GetSamplerHeapBudget() const {
+    if (sampler_heap_budget == 0) {
+        return std::nullopt;
+    }
+    return sampler_heap_budget;
+}
+
 u64 Device::GetDeviceMemoryUsage() const {
     VkPhysicalDeviceMemoryBudgetPropertiesEXT budget;
     budget.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_BUDGET_PROPERTIES_EXT;