eden-emu/eden - eden - InfoTonic

wildcard 4eb6d10d62 [Vk] Improve Stencil Handling and Fix Read-After-Write Hazard (#235 ) 1. Improves stencil handling: - Adds surface type detection to distinguish between color, depth, stencil, and depth-stencil formats - Only enables stencil load/store operations for surfaces that actually contain stencil data - Avoids unnecessary stencil operations for non-stencil formats (DONT_CARE) 2. Fixes read-after-write (RAW) synchronization hazards: - Adds a subpass self-dependency (subpass 0 → subpass 0) - Synchronizes color/depth writes with subsequent shader reads - Uses VK_DEPENDENCY_BY_REGION_BIT for efficient synchronization - Covers all possible relevant stages, • src: Color output + Early/Late fragment tests • dst: Fragment shader • Access: Write → Read transitions here is what hazard looks like [1147.550616] Render.Vulkan <Critical> video_core/vulkan_common/vulkan_debug_callback.cpp:DebugUtilCallback:55: Validation Error: [ SYNC-HAZARD-READ-AFTER-WRITE ] Object 0: handle = 0x7409630000000192, type = VK_OBJECT_TYPE_IMAGE_VIEW; \| MessageID = 0xe4d96472 \| vkCmdDrawIndexed: Hazard READ_AFTER_WRITE for VkImageView 0x7409630000000192[], in VkCommandBuffer 0xb400007cb003ea70[], and VkPipeline 0x44d3470000000213[], VkDescriptorSet 0x0[], type: VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, imageLayout: VK_IMAGE_LAYOUT_GENERAL, binding #2, index 0. Access info (usage: SYNC_FRAGMENT_SHADER_SHADER_SAMPLED_READ, prior_usage: SYNC_IMAGE_LAYOUT_TRANSITION, write_barriers: SYNC_FRAGMENT_SHADER_COLOR_ATTACHMENT_READ\|SYNC_FRAGMENT_SHADER_DEPTH_STENCIL_ATTACHMENT_READ\|SYNC_FRAGMENT_SHADER_INPUT_ATTACHMENT_READ\|SYNC_EARLY_FRAGMENT_TESTS_DEPTH_STENCIL_ATTACHMENT_READ\|SYNC_EARLY_FRAGMENT_TESTS_DEPTH_STENCIL_ATTACHMENT_WRITE\|SYNC_LATE_FRAGMENT_TESTS_DEPTH_STENCIL_ATTACHMENT_READ\|SYNC_LATE_FRAGMENT_TESTS_DEPTH_STENCIL_ATTACHMENT_WRITE\|SYNC_COLOR_ATTACHMENT_OUTPUT_COLOR_ATTACHMENT_READ\|SYNC_COLOR_ATTACHMENT_OUTPUT_COLOR_ATTACHMENT_WRITE\|SYNC_SUBPASS_SHADER_HUAWEI_INPUT_ATTACHMENT_READ, command: vkCmdPipelineBarrier, seq_no: 45, reset_no: 129). Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/235 Reviewed-by: crueter <crueter@eden-emu.dev> Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev> Co-authored-by: wildcard <nubieluv@gmail.com> Co-committed-by: wildcard <nubieluv@gmail.com>	6 months ago
..
CMakeLists.txt	[cmake] refactor: CPM over vcpkg (#250)	6 months ago

[Vk] Improve Stencil Handling and Fix Read-After-Write Hazard (#235 )

1. Improves stencil handling:
   - Adds surface type detection to distinguish between color, depth, stencil, and depth-stencil formats
   - Only enables stencil load/store operations for surfaces that actually contain stencil data
   - Avoids unnecessary stencil operations for non-stencil formats (DONT_CARE)

2. Fixes read-after-write (RAW) synchronization hazards:
   - Adds a subpass self-dependency (subpass 0 → subpass 0)
   - Synchronizes color/depth writes with subsequent shader reads
   - Uses VK_DEPENDENCY_BY_REGION_BIT for efficient synchronization
   - Covers all possible relevant stages,
     • src: Color output + Early/Late fragment tests
     • dst: Fragment shader
     • Access: Write → Read transitions
here is what hazard looks like [1147.550616] Render.Vulkan <Critical> video_core/vulkan_common/vulkan_debug_callback.cpp:DebugUtilCallback:55: Validation Error: [ SYNC-HAZARD-READ-AFTER-WRITE ] Object 0: handle = 0x7409630000000192, type = VK_OBJECT_TYPE_IMAGE_VIEW; | MessageID = 0xe4d96472 | vkCmdDrawIndexed: Hazard READ_AFTER_WRITE for VkImageView 0x7409630000000192[], in VkCommandBuffer 0xb400007cb003ea70[], and VkPipeline 0x44d3470000000213[], VkDescriptorSet 0x0[], type: VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, imageLayout: VK_IMAGE_LAYOUT_GENERAL, binding #2, index 0. Access info (usage: SYNC_FRAGMENT_SHADER_SHADER_SAMPLED_READ, prior_usage: SYNC_IMAGE_LAYOUT_TRANSITION, write_barriers: SYNC_FRAGMENT_SHADER_COLOR_ATTACHMENT_READ|SYNC_FRAGMENT_SHADER_DEPTH_STENCIL_ATTACHMENT_READ|SYNC_FRAGMENT_SHADER_INPUT_ATTACHMENT_READ|SYNC_EARLY_FRAGMENT_TESTS_DEPTH_STENCIL_ATTACHMENT_READ|SYNC_EARLY_FRAGMENT_TESTS_DEPTH_STENCIL_ATTACHMENT_WRITE|SYNC_LATE_FRAGMENT_TESTS_DEPTH_STENCIL_ATTACHMENT_READ|SYNC_LATE_FRAGMENT_TESTS_DEPTH_STENCIL_ATTACHMENT_WRITE|SYNC_COLOR_ATTACHMENT_OUTPUT_COLOR_ATTACHMENT_READ|SYNC_COLOR_ATTACHMENT_OUTPUT_COLOR_ATTACHMENT_WRITE|SYNC_SUBPASS_SHADER_HUAWEI_INPUT_ATTACHMENT_READ, command: vkCmdPipelineBarrier, seq_no: 45, reset_no: 129).

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/235
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
Co-authored-by: wildcard <nubieluv@gmail.com>
Co-committed-by: wildcard <nubieluv@gmail.com>

6 months ago

CMakeLists.txt

[cmake] refactor: CPM over vcpkg (#250)

6 months ago