2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 #include <dali/internal/render/renderers/render-frame-buffer.h>
21 #include <dali/integration-api/debug.h>
22 #include <dali/internal/render/renderers/render-texture.h>
30 FrameBuffer::FrameBuffer(uint32_t width, uint32_t height, Mask attachments)
33 mDepthBuffer(attachments & Dali::FrameBuffer::Attachment::DEPTH),
34 mStencilBuffer(attachments & Dali::FrameBuffer::Attachment::STENCIL)
38 FrameBuffer::~FrameBuffer() = default;
40 void FrameBuffer::Destroy()
42 mGraphicsObject.reset();
45 void FrameBuffer::Initialize(Graphics::Controller& graphicsController)
47 mGraphicsController = &graphicsController;
50 void FrameBuffer::AttachColorTexture(Render::Texture* texture, uint32_t mipmapLevel, uint32_t layer)
54 if(!texture->GetGraphicsObject())
56 texture->Create(0 | Graphics::TextureUsageFlagBits::COLOR_ATTACHMENT | Graphics::TextureUsageFlagBits::SAMPLE);
59 uint32_t attachmentId = mCreateInfo.colorAttachments.size();
60 Graphics::ColorAttachment colorAttachment{attachmentId, texture->GetGraphicsObject(), layer, mipmapLevel};
61 mCreateInfo.colorAttachments.push_back(colorAttachment);
65 void FrameBuffer::AttachDepthTexture(Render::Texture* texture, uint32_t mipmapLevel)
67 if(texture && mDepthBuffer)
69 if(!texture->GetGraphicsObject())
71 texture->Create(0 | Graphics::TextureUsageFlagBits::DEPTH_STENCIL_ATTACHMENT | Graphics::TextureUsageFlagBits::SAMPLE);
74 mCreateInfo.depthStencilAttachment.depthTexture = texture->GetGraphicsObject();
75 mCreateInfo.depthStencilAttachment.depthLevel = mipmapLevel;
79 void FrameBuffer::AttachDepthStencilTexture(Render::Texture* texture, uint32_t mipmapLevel)
81 if(texture && mStencilBuffer)
83 if(!texture->GetGraphicsObject())
85 texture->Create(0 | Graphics::TextureUsageFlagBits::DEPTH_STENCIL_ATTACHMENT | Graphics::TextureUsageFlagBits::SAMPLE);
87 mCreateInfo.depthStencilAttachment.stencilTexture = texture->GetGraphicsObject();
88 mCreateInfo.depthStencilAttachment.stencilLevel = mipmapLevel;
92 bool FrameBuffer::CreateGraphicsObjects()
98 // Only create a graphics object if there are attachments for it to render into
99 if(mCreateInfo.colorAttachments.empty() &&
100 mCreateInfo.depthStencilAttachment.depthTexture == nullptr &&
101 mCreateInfo.depthStencilAttachment.stencilTexture == nullptr)
103 DALI_LOG_ERROR("Attempting to bind a framebuffer with no attachments\n");
107 mGraphicsObject = mGraphicsController->CreateFramebuffer(mCreateInfo, std::move(mGraphicsObject));
109 // Create render target
110 Graphics::RenderTargetCreateInfo rtInfo{};
112 .SetFramebuffer(mGraphicsObject.get())
113 .SetExtent({mWidth, mHeight})
114 .SetPreTransform(0 | Graphics::RenderTargetTransformFlagBits::TRANSFORM_IDENTITY_BIT);
115 mRenderTarget = mGraphicsController->CreateRenderTarget(rtInfo, std::move(mRenderTarget));
117 std::vector<Graphics::AttachmentDescription> attachmentDescriptions;
119 // Default behaviour for color attachments is to CLEAR and STORE
120 mClearValues.clear();
121 for(auto& attachments : mCreateInfo.colorAttachments)
123 if(attachments.texture)
125 Graphics::AttachmentDescription desc{};
126 desc.SetLoadOp(Graphics::AttachmentLoadOp::CLEAR);
127 desc.SetStoreOp(Graphics::AttachmentStoreOp::STORE);
128 attachmentDescriptions.push_back(desc);
129 mClearValues.emplace_back();
133 if(mCreateInfo.depthStencilAttachment.depthTexture || mCreateInfo.depthStencilAttachment.stencilTexture)
135 Graphics::AttachmentDescription depthStencilDesc{};
136 depthStencilDesc.SetStencilLoadOp(Graphics::AttachmentLoadOp::CLEAR)
137 .SetStoreOp(Graphics::AttachmentStoreOp::DONT_CARE);
139 if(mCreateInfo.depthStencilAttachment.stencilTexture)
141 depthStencilDesc.SetStencilLoadOp(Graphics::AttachmentLoadOp::CLEAR)
142 .SetStoreOp(Graphics::AttachmentStoreOp::DONT_CARE);
144 mClearValues.emplace_back();
145 attachmentDescriptions.push_back(depthStencilDesc);
148 Graphics::RenderPassCreateInfo rpInfo{};
149 rpInfo.SetAttachments(attachmentDescriptions);
151 // Add default render pass (loadOp = clear)
152 mRenderPass.emplace_back(mGraphicsController->CreateRenderPass(rpInfo, nullptr));
154 // Add default render pass (loadOp = dontcare)
155 attachmentDescriptions[0].SetLoadOp(Graphics::AttachmentLoadOp::DONT_CARE);
156 mRenderPass.emplace_back(mGraphicsController->CreateRenderPass(rpInfo, nullptr));
164 uint32_t FrameBuffer::GetWidth() const
169 uint32_t FrameBuffer::GetHeight() const
174 [[nodiscard]] Graphics::RenderPass* FrameBuffer::GetGraphicsRenderPass(Graphics::AttachmentLoadOp colorLoadOp,
175 Graphics::AttachmentStoreOp colorStoreOp) const
177 // clear only when requested
178 if(colorLoadOp == Graphics::AttachmentLoadOp::CLEAR)
180 return mRenderPass[0].get();
184 return mRenderPass[1].get();
188 } // namespace Render
190 } // namespace Internal