2 * Copyright (c) 2023 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-geometry.h>
21 #include <dali/internal/common/buffer-index.h>
22 #include <dali/internal/render/renderers/render-vertex-buffer.h>
23 #include <dali/internal/render/shaders/program.h>
33 inline constexpr size_t GetSizeOfIndexFromIndexType(Dali::Graphics::Format graphicsFormat)
35 switch(graphicsFormat)
37 case Dali::Graphics::Format::R16_UINT:
39 return sizeof(uint16_t);
41 case Dali::Graphics::Format::R32_UINT:
43 return sizeof(uint32_t);
47 // TODO : Not implmeneted.
48 return sizeof(uint16_t);
52 } // unnamed namespace
55 mIndexBuffer(nullptr),
56 mIndexType(Dali::Graphics::Format::R16_UINT),
57 mGeometryType(Dali::Geometry::TRIANGLES),
58 mIndicesChanged(false),
59 mHasBeenUpdated(false),
60 mAttributesChanged(true)
64 Geometry::~Geometry() = default;
66 void Geometry::AddVertexBuffer(Render::VertexBuffer* vertexBuffer)
68 mVertexBuffers.PushBack(vertexBuffer);
69 mAttributesChanged = true;
72 const Vector<Render::VertexBuffer*>& Geometry::GetVertexBuffers() const
74 return mVertexBuffers;
77 void Geometry::SetIndexBuffer(Uint16ContainerType& indices)
79 mIndices.Swap(indices);
80 mIndicesChanged = true;
81 mIndexType = Graphics::Format::R16_UINT;
84 void Geometry::SetIndexBuffer(Uint32ContainerType& indices)
86 // mIndices type is not matched with indices. Copy memory hardly.
87 mIndices.ResizeUninitialized(indices.Count() * 2);
88 memcpy(mIndices.Begin(), indices.Begin(), indices.Count() * sizeof(uint32_t));
89 mIndicesChanged = true;
90 mIndexType = Graphics::Format::R32_UINT;
93 void Geometry::RemoveVertexBuffer(const Render::VertexBuffer* vertexBuffer)
95 const auto&& end = mVertexBuffers.End();
96 // @todo if this buffer is the only instance buffer, reduce instance count to 1.
97 for(auto&& iter = mVertexBuffers.Begin(); iter != end; ++iter)
99 if(*iter == vertexBuffer)
101 //This will delete the gpu buffer associated to the RenderVertexBuffer if there is one
102 mVertexBuffers.Remove(iter);
103 mAttributesChanged = true;
109 void Geometry::OnRenderFinished()
111 mHasBeenUpdated = false;
112 mAttributesChanged = false;
115 void Geometry::Upload(Graphics::Controller& graphicsController)
124 mIndexBuffer = nullptr;
128 if(mIndexBuffer == nullptr)
130 mIndexBuffer = new GpuBuffer(graphicsController, 0 | Graphics::BufferUsage::INDEX_BUFFER);
133 uint32_t bufferSize = static_cast<uint32_t>(sizeof(uint16_t) * mIndices.Size());
134 mIndexBuffer->UpdateDataBuffer(graphicsController, bufferSize, &mIndices[0]);
137 mIndicesChanged = false;
140 for(auto&& buffer : mVertexBuffers)
142 if(!buffer->Update(graphicsController))
144 //Vertex buffer is not ready ( Size, data or format has not been specified yet )
149 mHasBeenUpdated = true;
153 bool Geometry::BindVertexAttributes(Graphics::CommandBuffer& commandBuffer)
155 //Bind buffers to attribute locations
156 const auto vertexBufferCount = static_cast<uint32_t>(mVertexBuffers.Count());
158 std::vector<const Graphics::Buffer*> buffers;
159 std::vector<uint32_t> offsets;
161 for(uint32_t i = 0; i < vertexBufferCount; ++i)
163 if(mVertexBuffers[i]->GetDivisor() > 0)
165 mInstanceCount = mVertexBuffers[i]->GetElementCount();
168 const GpuBuffer* gpuBuffer = mVertexBuffers[i]->GetGpuBuffer();
171 const Graphics::Buffer* buffer = gpuBuffer->GetGraphicsObject();
175 buffers.push_back(buffer);
176 offsets.push_back(0u);
179 //@todo Figure out why this is being drawn without geometry having been uploaded
186 commandBuffer.BindVertexBuffers(0, buffers, offsets);
192 Graphics::Controller& graphicsController,
193 Graphics::CommandBuffer& commandBuffer,
194 uint32_t elementBufferOffset,
195 uint32_t elementBufferCount)
197 uint32_t numIndices(0u);
198 intptr_t firstIndexOffset(0u);
201 std::size_t sizeOfIndex = GetSizeOfIndexFromIndexType(mIndexType);
203 numIndices = static_cast<uint32_t>(mIndices.Size() * sizeof(uint16_t) / sizeOfIndex);
205 if(elementBufferOffset != 0u)
207 elementBufferOffset = (elementBufferOffset >= numIndices) ? numIndices - 1 : elementBufferOffset;
208 firstIndexOffset = intptr_t(elementBufferOffset * sizeOfIndex);
209 numIndices -= elementBufferOffset;
212 if(elementBufferCount != 0u)
214 numIndices = std::min(elementBufferCount, numIndices);
219 if(mIndexBuffer && mGeometryType != Dali::Geometry::POINTS)
222 const Graphics::Buffer* ibo = mIndexBuffer->GetGraphicsObject();
225 commandBuffer.BindIndexBuffer(*ibo, 0, mIndexType);
228 commandBuffer.DrawIndexed(numIndices, mInstanceCount, firstIndexOffset, 0, 0);
232 // Un-indexed draw call
233 uint32_t numVertices(0u);
235 if(mVertexBuffers.Count() > 0)
237 // truncated, no value loss happening in practice
238 numVertices = static_cast<uint32_t>(mVertexBuffers[0]->GetElementCount());
241 commandBuffer.Draw(numVertices, mInstanceCount, 0, 0);
246 Graphics::PrimitiveTopology Geometry::GetTopology() const
248 Graphics::PrimitiveTopology topology = Graphics::PrimitiveTopology::TRIANGLE_LIST;
250 switch(mGeometryType)
252 case Dali::Geometry::TRIANGLES:
254 topology = Graphics::PrimitiveTopology::TRIANGLE_LIST;
257 case Dali::Geometry::LINES:
259 topology = Graphics::PrimitiveTopology::LINE_LIST;
262 case Dali::Geometry::POINTS:
264 topology = Graphics::PrimitiveTopology::POINT_LIST;
267 case Dali::Geometry::TRIANGLE_STRIP:
269 topology = Graphics::PrimitiveTopology::TRIANGLE_STRIP;
272 case Dali::Geometry::TRIANGLE_FAN:
274 topology = Graphics::PrimitiveTopology::TRIANGLE_FAN;
277 case Dali::Geometry::LINE_LOOP:
279 topology = Graphics::PrimitiveTopology::LINE_LOOP;
282 case Dali::Geometry::LINE_STRIP:
284 topology = Graphics::PrimitiveTopology::LINE_STRIP;
291 } // namespace Render
292 } // namespace Internal