[vulkan]fix vuid 02751 (#3573)

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3573
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: DraVee <chimera@dravee.dev>
Co-authored-by: wildcard <wildcard@eden-emu.dev>
Co-committed-by: wildcard <wildcard@eden-emu.dev>

2 files changed, 13 insertions, 0 deletions

diff --git a/src/video_core/renderer_vulkan/vk_buffer_cache.cpp b/src/video_core/renderer_vulkan/vk_buffer_cache.cpp
index 6256bc8bd8..f4345262fb 100644
--- a/src/video_core/renderer_vulkan/vk_buffer_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_buffer_cache.cpp
@@ -108,6 +108,14 @@ VkBufferView Buffer::View(u32 offset, u32 size, VideoCore::Surface::PixelFormat
         // Null buffer not supported, adjust offset and size
         offset = 0;
         size = 0;
+    } else {
+        // Align offset down to minTexelBufferOffsetAlignment
+        const u32 alignment = static_cast<u32>(device->GetMinTexelBufferOffsetAlignment());
+        if (alignment > 1) {
+            const u32 aligned_offset = offset & ~(alignment - 1);
+            size += offset - aligned_offset;
+            offset = aligned_offset;
+        }
     }
     const auto it{std::ranges::find_if(views, [offset, size, format](const BufferView& view) {
         return offset == view.offset && size == view.size && format == view.format;
diff --git a/src/video_core/vulkan_common/vulkan_device.h b/src/video_core/vulkan_common/vulkan_device.h
index d3623d1186..d29a8cd3f3 100644
--- a/src/video_core/vulkan_common/vulkan_device.h
+++ b/src/video_core/vulkan_common/vulkan_device.h
@@ -318,6 +318,11 @@ public:
         return properties.properties.limits.minStorageBufferOffsetAlignment;
     }
 
+    /// Returns texel buffer offset alignment requirement.
+    VkDeviceSize GetMinTexelBufferOffsetAlignment() const {
+        return properties.properties.limits.minTexelBufferOffsetAlignment;
+    }
+
     /// Returns the maximum range for storage buffers.
     VkDeviceSize GetMaxStorageBufferRange() const {
         return properties.properties.limits.maxStorageBufferRange;