[PATCH vkd3d 4/4] vkd3d: Introduce vkd3d_format_get_data_offset().

[Henri Verbeet]

Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
---
 libs/vkd3d/command.c       | 11 ++++-------
 libs/vkd3d/resource.c      | 12 ++++--------
 libs/vkd3d/vkd3d_private.h |  9 +++++++++
 3 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/libs/vkd3d/command.c b/libs/vkd3d/command.c
index d420863..59ea482 100644
--- a/libs/vkd3d/command.c
+++ b/libs/vkd3d/command.c
@@ -3065,9 +3065,8 @@ static void vk_buffer_image_copy_from_d3d12(VkBufferImageCopy *copy,
     if (src_box)
     {
         VkDeviceSize row_count = footprint->Footprint.Height / format->block_height;
-        copy->bufferOffset += src_box->left / format->block_width * format->byte_count * format->block_byte_count;
-        copy->bufferOffset += src_box->top / format->block_height * footprint->Footprint.RowPitch;
-        copy->bufferOffset += src_box->front * footprint->Footprint.RowPitch * row_count;
+        copy->bufferOffset += vkd3d_format_get_data_offset(format, footprint->Footprint.RowPitch,
+                row_count * footprint->Footprint.RowPitch, src_box->left, src_box->top, src_box->front);
     }
     copy->bufferRowLength = footprint->Footprint.RowPitch /
             (format->byte_count * format->block_byte_count) * format->block_width;
@@ -3098,10 +3097,8 @@ static void vk_image_buffer_copy_from_d3d12(VkBufferImageCopy *copy,
 {
     VkDeviceSize row_count = footprint->Footprint.Height / format->block_height;
 
-    copy->bufferOffset = footprint->Offset;
-    copy->bufferOffset += dst_x / format->block_width * format->byte_count * format->block_byte_count;
-    copy->bufferOffset += dst_y / format->block_height * footprint->Footprint.RowPitch;
-    copy->bufferOffset += dst_z * footprint->Footprint.RowPitch * row_count;
+    copy->bufferOffset = footprint->Offset + vkd3d_format_get_data_offset(format,
+            footprint->Footprint.RowPitch, row_count * footprint->Footprint.RowPitch, dst_x, dst_y, dst_z);
     copy->bufferRowLength = footprint->Footprint.RowPitch /
             (format->byte_count * format->block_byte_count) * format->block_width;
     copy->bufferImageHeight = footprint->Footprint.Height;
diff --git a/libs/vkd3d/resource.c b/libs/vkd3d/resource.c
index db5e991..626772e 100644
--- a/libs/vkd3d/resource.c
+++ b/libs/vkd3d/resource.c
@@ -1376,10 +1376,8 @@ static HRESULT STDMETHODCALLTYPE d3d12_resource_WriteToSubresource(ID3D12Resourc
         return hr;
     }
 
-    dst_data += vk_layout.offset;
-    dst_data += dst_box->left / format->block_width * format->byte_count * format->block_byte_count;
-    dst_data += dst_box->top / format->block_height * vk_layout.rowPitch;
-    dst_data += dst_box->front * vk_layout.depthPitch;
+    dst_data += vk_layout.offset + vkd3d_format_get_data_offset(format, vk_layout.rowPitch,
+            vk_layout.depthPitch, dst_box->left, dst_box->top, dst_box->front);
 
     vkd3d_format_copy_data(format, src_data, src_row_pitch, src_slice_pitch,
             dst_data, vk_layout.rowPitch, vk_layout.depthPitch, dst_box->right - dst_box->left,
@@ -1470,10 +1468,8 @@ static HRESULT STDMETHODCALLTYPE d3d12_resource_ReadFromSubresource(ID3D12Resour
         return hr;
     }
 
-    src_data += vk_layout.offset;
-    src_data += src_box->left / format->block_width * format->byte_count * format->block_byte_count;
-    src_data += src_box->top / format->block_height * vk_layout.rowPitch;
-    src_data += src_box->front * vk_layout.depthPitch;
+    src_data += vk_layout.offset + vkd3d_format_get_data_offset(format, vk_layout.rowPitch,
+            vk_layout.depthPitch, src_box->left, src_box->top, src_box->front);
 
     vkd3d_format_copy_data(format, src_data, vk_layout.rowPitch, vk_layout.depthPitch,
             dst_data, dst_row_pitch, dst_slice_pitch, src_box->right - src_box->left,
diff --git a/libs/vkd3d/vkd3d_private.h b/libs/vkd3d/vkd3d_private.h
index fd98463..69b08a2 100644
--- a/libs/vkd3d/vkd3d_private.h
+++ b/libs/vkd3d/vkd3d_private.h
@@ -1150,6 +1150,15 @@ struct vkd3d_format
     bool is_emulated;
 };
 
+static inline size_t vkd3d_format_get_data_offset(const struct vkd3d_format *format,
+        unsigned int row_pitch, unsigned int slice_pitch,
+        unsigned int x, unsigned int y, unsigned int z)
+{
+    return z * slice_pitch
+            + (y / format->block_height) * row_pitch
+            + (x / format->block_width) * format->byte_count * format->block_byte_count;
+}
+
 static inline bool vkd3d_format_is_compressed(const struct vkd3d_format *format)
 {
     return format->block_byte_count != 1;
-- 
2.11.0