dali/internal/render/renderers/uniform-buffer-manager.cpp

   1 /*
   2  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali/internal/render/renderers/uniform-buffer-manager.h>
  20
  21 // INTERNAL INCLUDES
  22 #include <dali/internal/render/renderers/uniform-buffer.h>
  23 #include <dali/internal/render/renderers/uniform-buffer-view.h>
  24 #include <dali/internal/render/renderers/uniform-buffer-view-pool.h>
  25
  26 #include <dali/graphics-api/graphics-buffer-create-info.h>
  27 #include <dali/graphics-api/graphics-buffer.h>
  28
  29 #include <cstring>
  30 #include <memory>
  31
  32 namespace Dali::Internal::Render
  33 {
  34
  35 UniformBufferManager::UniformBufferManager(Dali::Graphics::Controller* controller)
  36 : mController(controller)
  37 {
  38 }
  39
  40 UniformBufferManager::~UniformBufferManager() = default;
  41
  42 Graphics::UniquePtr<UniformBuffer> UniformBufferManager::AllocateUniformBuffer(uint32_t size, uint32_t alignment)
  43 {
  44   return Graphics::UniquePtr<UniformBuffer>(
  45     new UniformBuffer(mController, size, alignment, true, Dali::Graphics::BufferUsageFlags{0u} | Dali::Graphics::BufferUsage::TRANSFER_DST | Dali::Graphics::BufferUsage::UNIFORM_BUFFER));
  46 }
  47
  48 Graphics::UniquePtr<UniformBufferView> UniformBufferManager::CreateUniformBufferView( UniformBuffer* uniformBuffer, uint32_t offset, uint32_t size )
  49 {
  50   // Allocate offset of given UBO (allocation strategy may reuse memory)
  51   return Graphics::UniquePtr<UniformBufferView>( new UniformBufferView(*uniformBuffer, offset, size) );
  52 }
  53
  54 Graphics::UniquePtr<UniformBufferViewPool> UniformBufferManager::CreateUniformBufferViewPool()
  55 {
  56   return Graphics::UniquePtr<UniformBufferViewPool>(
  57     new UniformBufferViewPool( *this, 1 )
  58     );
  59 }
  60
  61 [[nodiscard]] UniformBufferViewPool* UniformBufferManager::GetUniformBufferViewPool( uint32_t bufferIndex )
  62 {
  63   if(!mUniformBufferPoolStorage[bufferIndex])
  64   {
  65     // create new uniform buffer view pool with default (initial) capacity
  66     mUniformBufferPoolStorage[bufferIndex] = CreateUniformBufferViewPool();
  67   }
  68   return mUniformBufferPoolStorage[bufferIndex].get();
  69 }
  70
  71 } // namespace Dali::Internal::Render