OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

vk/cmd_buffer: Add functions for cloning a list of anv_batch_bo's

Browse Source 
We'll need this to implement secondary command buffers.
This commit is contained in:
Jason Ekstrand
2015-07-30 11:32:27 -07:00
parent 7af67e085f
commit ace093031d
1 changed files with 38 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
src/vulkan/anv_cmd_buffer.c
View File

@@ -319,6 +319,44 @@ anv_batch_bo_destroy(struct anv_batch_bo *bbo, struct anv_device *device)
anv_device_free(device, bbo);
}
static VkResult
anv_batch_bo_list_clone(const struct list_head *list, struct anv_device *device,
struct list_head *new_list)
{
VkResult result = VK_SUCCESS;
list_inithead(new_list);
struct anv_batch_bo *prev_bbo = NULL;
list_for_each_entry(struct anv_batch_bo, bbo, list, link) {
struct anv_batch_bo *new_bbo;
result = anv_batch_bo_clone(device, bbo, &new_bbo);
if (result != VK_SUCCESS)
break;
list_addtail(&new_bbo->link, new_list);
if (prev_bbo) {
/* As we clone this list of batch_bo's, they chain one to the
* other using MI_BATCH_BUFFER_START commands. We need to fix up
* those relocations as we go. Fortunately, this is pretty easy
* as it will always be the last relocation in the list.
*/
uint32_t last_idx = prev_bbo->relocs.num_relocs - 1;
assert(prev_bbo->relocs.reloc_bos[last_idx] == &bbo->bo);
prev_bbo->relocs.reloc_bos[last_idx] = &new_bbo->bo;
}
prev_bbo = new_bbo;
}
if (result != VK_SUCCESS) {
list_for_each_entry_safe(struct anv_batch_bo, bbo, new_list, link)
anv_batch_bo_destroy(bbo, device);
}
return result;
}
/*-----------------------------------------------------------------------*
* Functions related to anv_batch_bo
*-----------------------------------------------------------------------*/