godotengine/godot
1
0
Fork 0
mirror of https://github.com/godotengine/godot.git synced 2025-11-05 12:10:55 +00:00
Code Releases Wiki Activity

Added optional offset and size parameter to RenderDevice buffer_get_data method

Browse Source
This commit is contained in:
EpEpDragon
2022-12-28 10:37:42 +02:00
parent b14f7aa9f9
commit 36d02882b9
5 changed files with 20 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/vulkan/rendering_device_vulkan.cpp
View File

@@ -5926,7 +5926,7 @@ Error RenderingDeviceVulkan::buffer_clear(RID p_buffer, uint32_t p_offset, uint3
return OK;
}
Vector<uint8_t> RenderingDeviceVulkan::buffer_get_data(RID p_buffer) {
Vector<uint8_t> RenderingDeviceVulkan::buffer_get_data(RID p_buffer, uint32_t p_offset, uint32_t p_size) {
_THREAD_SAFE_METHOD_
// It could be this buffer was just created.
@@ -5943,12 +5943,20 @@ Vector<uint8_t> RenderingDeviceVulkan::buffer_get_data(RID p_buffer) {
VkCommandBuffer command_buffer = frames[frame].setup_command_buffer;
// Size of buffer to retrieve.
if (!p_size) {
p_size = buffer->size;
} else {
ERR_FAIL_COND_V_MSG(p_size + p_offset > buffer->size, Vector<uint8_t>(),
"Size is larger than the buffer.");
}
Buffer tmp_buffer;
_buffer_allocate(&tmp_buffer, buffer->size, VK_BUFFER_USAGE_TRANSFER_DST_BIT, VMA_MEMORY_USAGE_AUTO_PREFER_HOST, VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT);
_buffer_allocate(&tmp_buffer, p_size, VK_BUFFER_USAGE_TRANSFER_DST_BIT, VMA_MEMORY_USAGE_AUTO_PREFER_HOST, VMA_ALLOCATION_CREATE_HOST_ACCESS_RANDOM_BIT);
VkBufferCopy region;
region.srcOffset = 0;
region.srcOffset = p_offset;
region.dstOffset = 0;
region.size = buffer->size;
region.size = p_size;
vkCmdCopyBuffer(command_buffer, buffer->buffer, tmp_buffer.buffer, 1, &region); // Dst buffer is in CPU, but I wonder if src buffer needs a barrier for this.
// Flush everything so memory can be safely mapped.
_flush(true);
@@ -5959,9 +5967,9 @@ Vector<uint8_t> RenderingDeviceVulkan::buffer_get_data(RID p_buffer) {
Vector<uint8_t> buffer_data;
{
buffer_data.resize(buffer->size);
buffer_data.resize(p_size);
uint8_t *w = buffer_data.ptrw();
memcpy(w, buffer_mem, buffer->size);
memcpy(w, buffer_mem, p_size);
}
vmaUnmapMemory(allocator, tmp_buffer.allocation);