[vk] Simplified layouts per driver configuration (#3271)

Replaces VK_PIPELINE_STAGE_ALL_COMMANDS_BIT with more specific pipeline stage flags in Vulkan pipeline barriers across renderer modules.

Co-authored-by: DraVee <dravee@eden-emu.dev>
Co-authored-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3271
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: DraVee <dravee@eden-emu.dev>
Co-authored-by: Nekle <224100951+ne-kle@users.noreply.github.com>
Co-committed-by: Nekle <224100951+ne-kle@users.noreply.github.com>

1 files changed, 26 insertions, 6 deletions

diff --git a/src/video_core/renderer_vulkan/present/util.cpp b/src/video_core/renderer_vulkan/present/util.cpp
index 29a1c34976..c85af50060 100644
--- a/src/video_core/renderer_vulkan/present/util.cpp
+++ b/src/video_core/renderer_vulkan/present/util.cpp
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
@@ -68,7 +68,16 @@ void TransitionImageLayout(vk::CommandBuffer& cmdbuf, VkImage image, VkImageLayo
             .layerCount = 1,
         },
     };
-    cmdbuf.PipelineBarrier(VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
+    // Present path - use specific stages for better parallelism on tile-based GPUs
+    const VkPipelineStageFlags src_stages =
+        VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT |
+        VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT |
+        VK_PIPELINE_STAGE_TRANSFER_BIT;
+    const VkPipelineStageFlags dst_stages =
+        VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT |
+        VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT |
+        VK_PIPELINE_STAGE_TRANSFER_BIT;
+    cmdbuf.PipelineBarrier(src_stages, dst_stages,
                            0, barrier);
 }
 
@@ -151,11 +160,12 @@ void DownloadColorImage(vk::CommandBuffer& cmdbuf, VkImage image, VkBuffer buffe
             .layerCount = VK_REMAINING_ARRAY_LAYERS,
         },
     };
+    // Host will read the downloaded data
     static constexpr VkMemoryBarrier memory_write_barrier{
         .sType = VK_STRUCTURE_TYPE_MEMORY_BARRIER,
         .pNext = nullptr,
-        .srcAccessMask = VK_ACCESS_MEMORY_WRITE_BIT,
-        .dstAccessMask = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_MEMORY_WRITE_BIT,
+        .srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
+        .dstAccessMask = VK_ACCESS_HOST_READ_BIT,
     };
     const VkBufferImageCopy copy{
         .bufferOffset = 0,
@@ -170,10 +180,20 @@ void DownloadColorImage(vk::CommandBuffer& cmdbuf, VkImage image, VkBuffer buffe
         .imageOffset{.x = 0, .y = 0, .z = 0},
         .imageExtent{extent},
     };
-    cmdbuf.PipelineBarrier(VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0,
+    const VkPipelineStageFlags src_stages_copy =
+        VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT |
+        VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT |
+        VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT |
+        VK_PIPELINE_STAGE_TRANSFER_BIT;
+    cmdbuf.PipelineBarrier(src_stages_copy, VK_PIPELINE_STAGE_TRANSFER_BIT, 0,
                            read_barrier);
     cmdbuf.CopyImageToBuffer(image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, buffer, copy);
-    cmdbuf.PipelineBarrier(VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, 0,
+    const VkPipelineStageFlags dst_stages_copy =
+        VK_PIPELINE_STAGE_HOST_BIT |
+        VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT |
+        VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT |
+        VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+    cmdbuf.PipelineBarrier(VK_PIPELINE_STAGE_TRANSFER_BIT, dst_stages_copy, 0,
                            memory_write_barrier, nullptr, image_write_barrier);
 }