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Renderer: Allow UploadPool to handle very big (>= 2MB) blocks

This commit is contained in:
Jérôme Leclercq 2021-05-15 15:27:17 +02:00
parent 131d5f7afb
commit 51c099b3ce
4 changed files with 15 additions and 5 deletions
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1
include/Nazara/OpenGLRenderer/OpenGLUploadPool.hpp
View File

@ -42,6 +42,7 @@ namespace Nz
{
std::vector<UInt8> memory;
UInt64 freeOffset = 0;
UInt64 size;
};
std::size_t m_nextAllocationIndex;

1
include/Nazara/VulkanRenderer/VulkanUploadPool.hpp
View File

@ -49,6 +49,7 @@ namespace Nz
Vk::DeviceMemory blockMemory;
Vk::Buffer buffer;
UInt64 freeOffset = 0;
UInt64 size;
};
UInt64 m_blockSize;

7
src/Nazara/OpenGLRenderer/OpenGLUploadPool.cpp
View File

@ -27,7 +27,7 @@ namespace Nz
for (Block& block : m_blocks)
{
if (block.freeOffset + size > m_blockSize)
if (block.freeOffset + size > block.size)
continue; //< Not enough space
if (!bestBlock.block)
@ -41,7 +41,12 @@ namespace Nz
// No block found, allocate a new one
if (!bestBlock.block)
{
// Handle really big allocations (TODO: Handle them separately as they shouldn't be common and can consume a lot of memory)
UInt64 blockSize = std::max(m_blockSize, size);
Block newBlock;
newBlock.size = blockSize;
newBlock.memory.resize(m_blockSize);
bestBlock.block = &m_blocks.emplace_back(std::move(newBlock));

11
src/Nazara/VulkanRenderer/VulkanUploadPool.cpp
View File

@ -19,8 +19,6 @@ namespace Nz
auto VulkanUploadPool::Allocate(UInt64 size, UInt64 alignment) -> VulkanAllocation&
{
assert(size <= m_blockSize);
// Try to minimize lost space
struct
{
@ -32,7 +30,7 @@ namespace Nz
for (Block& block : m_blocks)
{
UInt64 alignedOffset = AlignPow2(block.freeOffset, alignment);
if (alignedOffset + size > m_blockSize)
if (alignedOffset + size > block.size)
continue; //< Not enough space
UInt64 lostSpace = alignedOffset - block.freeOffset;
@ -48,8 +46,13 @@ namespace Nz
// No block found, allocate a new one
if (!bestBlock.block)
{
// Handle really big allocations (TODO: Handle them separately as they shouldn't be common and can consume a lot of memory)
UInt64 blockSize = std::max(m_blockSize, size);
Block newBlock;
if (!newBlock.buffer.Create(m_device, 0U, m_blockSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT))
newBlock.size = blockSize;
if (!newBlock.buffer.Create(m_device, 0U, blockSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT))
throw std::runtime_error("failed to create block buffer: " + TranslateVulkanError(newBlock.buffer.GetLastErrorCode()));
VkMemoryRequirements requirement = newBlock.buffer.GetMemoryRequirements();