diff options
Diffstat (limited to 'Runtime/Graphics/SharedVertexBuffer.cpp')
| -rw-r--r-- | Runtime/Graphics/SharedVertexBuffer.cpp | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/Runtime/Graphics/SharedVertexBuffer.cpp b/Runtime/Graphics/SharedVertexBuffer.cpp deleted file mode 100644 index 976fb70..0000000 --- a/Runtime/Graphics/SharedVertexBuffer.cpp +++ /dev/null @@ -1,267 +0,0 @@ -#include "SharedVertexBuffer.h" -#include "../Profiling/FrameStats.h" - -SharedVertexBuffer::SharedVertexBuffer() -{ -} - -SharedVertexBuffer::~SharedVertexBuffer() -{ -} - -//------------------------------------------------------------------------------------------------------------ -// Defualt Vertex Layout - -//GetChunk -//-> ReleaseChunk -//-> DrawChunk - -void SharedVertexBuffer::GetChunk(uint attrsMask, int maxVerts, int maxIndices, EPrimitive primitive, void **out_vb, void **out_ib) -{ - Assert(out_vb && out_ib); - - uint stride = VertexLayout::GetDynamicChunkStride(attrsMask); // data size of single vertex - GetChunk(stride, maxVerts, VertexLayout::GetDefaultIndexSize(), maxIndices, primitive, out_vb, out_ib); - - // default layout - m_CurAttrMask = attrsMask; - m_CurStride = stride; -} - -void SharedVertexBuffer::DrawChunk() -{ - DefaultVertexLayout vertexArray; - FillDefaultVertexLayout(vertexArray); - - // bind vertex attributes data - VertexLayout::SetupDefaultVertexLayout(vertexArray); - - const void* indexPtr = m_CurIB ? 0 : (m_CurIBData.empty() ? 0 : &m_CurIBData[0]); - - if (m_CurIB) - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_CurIB->GetHandle()); - - GLenum indexFormat = VertexLayout::GetDefaultIndexFormat(); - - switch (m_CurPrimitive) - { - case Primitive_Triangle: - glDrawElements(GL_TRIANGLES, m_CurIndexCount, indexFormat, indexPtr); - g_FrameStats.AddDrawCall(); - g_FrameStats.AddTrianglesCount(m_CurIndexCount / 3); - break; - case Primitive_Line: - glDrawElements(GL_LINE, m_CurIndexCount, indexFormat, indexPtr); - g_FrameStats.AddDrawCall(); - break; - case Primitive_Point: - glDrawElements(GL_POINT, m_CurIndexCount, indexFormat, indexPtr); - g_FrameStats.AddDrawCall(); - break; - } - - if (m_CurIB) - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); - - // End draw - Clean(); -} - -void SharedVertexBuffer::FillDefaultVertexLayout(DefaultVertexLayout& dst) -{ - const byte* basepointer = m_CurVB ? 0 : &m_CurVBData[0]; - const GLuint buffer = m_CurVB ? m_CurVB->GetHandle() : 0; - - int attrOffsets[VertexAttr_Count] = { 0 }; - { - uint32 curOffset = 0; - for (uint idx = 0; idx < VertexAttr_Count; ++idx) - { - if (m_CurAttrMask & Mask(idx)) - { - attrOffsets[idx] = curOffset; - curOffset += VertexLayout::GetDefaultVertexAttrSize(idx); - } - } - } - - dst.buffer = buffer; - - for (uint32 attrIdx = 0; attrIdx < VertexAttr_Count; ++attrIdx) - { - if (m_CurAttrMask & Mask(attrIdx)) - { - dst.attributes[attrIdx].pointer = basepointer + attrOffsets[attrIdx]; - dst.attributes[attrIdx].componentFormat = VertexLayout::GetDefaultShaderChannelFormat(attrIdx); - dst.attributes[attrIdx].componentNum = VertexLayout::GetDefaultShaderChannelDimension(attrIdx); - dst.attributes[attrIdx].stride = m_CurStride; - - dst.enableMask |= Mask(attrIdx); - } - } -} - -//------------------------------------------------------------------------------------------------------------ -// Custom Vertex Layout - -// 用buffersize为依据决定用vbo或者pinned memory -void SharedVertexBuffer::GetChunk(uint sizePerVert, uint sizePerIndex, int maxVerts, int maxIndices, EPrimitive primitive, void **out_vb, void **out_ib) -{ - Assert(out_vb && out_ib); - - uint vbufferSize = sizePerVert * maxVerts; - uint ibufferSize = sizePerIndex * maxIndices; - - const bool mapVertexBuffer = vbufferSize >= DataBufferThreshold; - const bool mapIndexBuffer = ibufferSize >= DataBufferThreshold; - - GLenum usage = GL_STREAM_DRAW; - - GPU::DataBuffer* vertexBuffer = mapVertexBuffer ? GPU::ClaimBuffer(vbufferSize, usage) : 0; - GPU::DataBuffer* indexBuffer = mapIndexBuffer ? GPU::ClaimBuffer(ibufferSize, usage) : 0; - - if (vertexBuffer && vertexBuffer->GetSize() < vbufferSize) - vertexBuffer->Restore(vbufferSize, usage); - - if (indexBuffer && indexBuffer->GetSize() < ibufferSize) - indexBuffer->Restore(ibufferSize, usage); - - if (!mapVertexBuffer && m_CurVBData.size() < vbufferSize) - m_CurVBData.resize(vbufferSize); - - if (!mapIndexBuffer && m_CurIBData.size() < ibufferSize) - m_CurIBData.resize(ibufferSize); - - const GLenum access = GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT | GL_MAP_FLUSH_EXPLICIT_BIT; - - if (vertexBuffer) - *out_vb = vertexBuffer->MapRange(0, vbufferSize, access); - else - *out_vb = &m_CurVBData[0]; - - if (indexBuffer) - *out_ib = indexBuffer->MapRange(0, ibufferSize, access); - else - *out_ib = &m_CurIBData[0]; - - m_CurVB = vertexBuffer; - m_CurIB = indexBuffer; - - m_CurPrimitive = primitive; -} - -void SharedVertexBuffer::FillCustomVertexLayout(CustomVertexLayout& dst) -{ - const byte* basepointer = m_CurVB ? 0 : &m_CurVBData[0]; - const GLuint buffer = m_CurVB ? m_CurVB->GetHandle() : 0; - - dst.buffer = buffer; - - for (int i = 0; i < dst.attributes.size(); ++i) - { - int offset = dst.attributes[i].startOffset; - dst.attributes[i].pointer = basepointer + offset; - } -} - -void SharedVertexBuffer::DrawChunk(CustomVertexLayout& layout) -{ - const byte* basepointer = m_CurVB ? 0 : &m_CurVBData[0]; - const GLuint buffer = m_CurVB ? m_CurVB->GetHandle() : 0; - - FillCustomVertexLayout(layout); - - VertexLayout::SetupCustomVertexLayout(layout); - - layout.RestorePointer(); - - const void* indexPtr = m_CurIB ? 0 : (m_CurIBData.empty() ? 0 : &m_CurIBData[0]); - - if (m_CurIB) - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_CurIB->GetHandle()); - - GLenum indexFormat = VertexLayout::GetDefaultIndexFormat(); - - switch (m_CurPrimitive) - { - case Primitive_Triangle: - glDrawElements(GL_TRIANGLES, m_CurIndexCount, indexFormat, indexPtr); - g_FrameStats.AddDrawCall(); - g_FrameStats.AddTrianglesCount(m_CurIndexCount / 3); - break; - case Primitive_Line: - glDrawElements(GL_LINE, m_CurIndexCount, indexFormat, indexPtr); - g_FrameStats.AddDrawCall(); - break; - case Primitive_Point: - glDrawElements(GL_POINT, m_CurIndexCount, indexFormat, indexPtr); - g_FrameStats.AddDrawCall(); - break; - } - - if (m_CurIB) - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); - - // End draw - Clean(); -} - -//------------------------------------------------------------------------------------------------------------ -// Both Default and Custom Vertex Layout - -void SharedVertexBuffer::ReleaseChunk(int actualVerts, int actualIndices) -{ - int actualVBufferSize = m_CurStride * actualVerts; - int actualIBufferSize = VertexLayout::GetDefaultIndexSize() * actualIndices; - - const GLenum usage = GL_STREAM_DRAW; - - if (m_CurVB) - { - m_CurVB->FlushMapedRange(0, actualVBufferSize); - m_CurVB->UnMap(); - } - else if (actualVBufferSize >= DataBufferThreshold) - { - m_CurVB = GPU::ClaimBuffer(actualVBufferSize, usage); - m_CurVB->RestoreWithData(actualVBufferSize, usage, &m_CurVBData[0]); - } - - if (m_CurIB) - { - m_CurIB->FlushMapedRange(0, actualIBufferSize); - m_CurIB->UnMap(); - } - else if (actualIBufferSize >= DataBufferThreshold) - { - m_CurIB = GPU::ClaimBuffer(0, usage); - m_CurIB->RestoreWithData(0, usage, &m_CurIBData[0]); - } - - m_CurVertexCount = actualVerts; - m_CurIndexCount = actualIndices; -} - -void SharedVertexBuffer::Clean() -{ - if (m_CurVB) - { - GPU::ReleaseBuffer(m_CurVB); - m_CurVB = 0; - } - - if (m_CurIB) - { - GPU::ReleaseBuffer(m_CurIB); - m_CurIB = 0; - } - - m_CurPrimitive = Primitive_Triangle; - m_CurAttrMask = 0; - m_CurStride = 0; - m_CurVertexCount = 0; - m_CurIndexCount = 0; - - m_CurVBData.clear(); - m_CurIBData.clear(); -} |