[vulkan, qcom] Fix shader float controls on QCOM driver (#4297)

Finishes my torture to find the culprit behind the broken behavior with float controls, even if device does support flush denorm on fp32 it doesn't really support it and provokes bad rounding modes by not flushing correctly denorms; this also returns the other working rounding modes on QCOM drivers.

_Special Thanks_

1.- Smoly The Big (@Gidoly)

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4297
Reviewed-by: Samuel <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
This commit is contained in:
CamilleLaVey
2026-08-24 17:57:12 +02:00
committed by crueter
parent d9336ce6ce
commit 60a474b8df
5 changed files with 5 additions and 3 deletions
@@ -231,6 +231,7 @@ ShaderCache::ShaderCache(Tegra::MaxwellDeviceMemoryManager& device_memory_,
.has_broken_unsigned_image_offsets = true,
.has_broken_signed_operations = true,
.has_broken_fp16_float_controls = false,
.has_broken_fp32_denorm_flush = false,
.has_gl_component_indexing_bug = device.HasComponentIndexingBug(),
.has_gl_precise_bug = device.HasPreciseBug(),
.has_gl_cbuf_ftou_bug = device.HasCbufFtouBug(),
@@ -444,6 +444,7 @@ PipelineCache::PipelineCache(Tegra::MaxwellDeviceMemoryManager& device_memory_,
.has_broken_unsigned_image_offsets = false,
.has_broken_signed_operations = false,
.has_broken_fp16_float_controls = driver_id == VK_DRIVER_ID_NVIDIA_PROPRIETARY,
.has_broken_fp32_denorm_flush = driver_id == VK_DRIVER_ID_QUALCOMM_PROPRIETARY,
.ignore_nan_fp_comparisons = false,
.has_broken_spirv_subgroup_mask_vector_extract_dynamic = false,
.has_broken_robust =
@@ -517,8 +517,6 @@ Device::Device(VkInstance instance_, vk::PhysicalDevice physical_, VkSurfaceKHR
LOG_WARNING(Render_Vulkan, "Qualcomm drivers have broken color write enable.");
RemoveExtensionFeature(extensions.color_write_enable, features.color_write_enable,
VK_EXT_COLOR_WRITE_ENABLE_EXTENSION_NAME);
LOG_WARNING(Render_Vulkan, "Qualcomm drivers have broken shader float controls.");
RemoveExtension(extensions.shader_float_controls, VK_KHR_SHADER_FLOAT_CONTROLS_EXTENSION_NAME);
LOG_WARNING(Render_Vulkan, "Qualcomm drivers have broken shader atomic int64.");
RemoveExtensionFeature(extensions.shader_atomic_int64, features.shader_atomic_int64,
VK_KHR_SHADER_ATOMIC_INT64_EXTENSION_NAME);