124 lines
4.7 KiB
C
124 lines
4.7 KiB
C
#include "vertexbuffer.h"
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#include <kinc/graphics5/vertexbuffer.h>
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#include <kinc/backend/SystemMicrosoft.h>
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#include <kinc/graphics4/graphics.h>
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kinc_g5_vertex_buffer_t *_current_vertex_buffer = NULL;
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void kinc_g5_vertex_buffer_init(kinc_g5_vertex_buffer_t *buffer, int count, kinc_g5_vertex_structure_t *structure, bool gpuMemory, int instanceDataStepRate) {
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buffer->impl.myCount = count;
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// static_assert(sizeof(D3D12VertexBufferView) == sizeof(D3D12_VERTEX_BUFFER_VIEW), "Something is wrong with D3D12IVertexBufferView");
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buffer->impl.myStride = 0;
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for (int i = 0; i < structure->size; ++i) {
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buffer->impl.myStride += kinc_g4_vertex_data_size(structure->elements[i].data);
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}
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int uploadBufferSize = buffer->impl.myStride * buffer->impl.myCount;
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D3D12_HEAP_PROPERTIES heapProperties;
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heapProperties.Type = D3D12_HEAP_TYPE_UPLOAD;
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heapProperties.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
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heapProperties.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
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heapProperties.CreationNodeMask = 1;
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heapProperties.VisibleNodeMask = 1;
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D3D12_RESOURCE_DESC resourceDesc;
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resourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
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resourceDesc.Alignment = 0;
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resourceDesc.Width = uploadBufferSize;
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resourceDesc.Height = 1;
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resourceDesc.DepthOrArraySize = 1;
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resourceDesc.MipLevels = 1;
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resourceDesc.Format = DXGI_FORMAT_UNKNOWN;
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resourceDesc.SampleDesc.Count = 1;
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resourceDesc.SampleDesc.Quality = 0;
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resourceDesc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
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resourceDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
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device->CreateCommittedResource(&heapProperties, D3D12_HEAP_FLAG_NONE, &resourceDesc, D3D12_RESOURCE_STATE_GENERIC_READ, NULL,
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IID_GRAPHICS_PPV_ARGS(&buffer->impl.uploadBuffer));
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// device_->CreateCommittedResource(&CD3DX12_HEAP_PROPERTIES (D3D12_HEAP_TYPE_DEFAULT), D3D12_HEAP_FLAG_NONE,
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// &CD3DX12_RESOURCE_DESC::Buffer(uploadBufferSize),
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// D3D12_RESOURCE_STATE_COPY_DEST, nullptr, IID_PPV_ARGS(&vertexBuffer));
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buffer->impl.view.BufferLocation = buffer->impl.uploadBuffer->GetGPUVirtualAddress();
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buffer->impl.view.SizeInBytes = uploadBufferSize;
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buffer->impl.view.StrideInBytes = buffer->impl.myStride;
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buffer->impl.lastStart = 0;
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buffer->impl.lastCount = kinc_g5_vertex_buffer_count(buffer);
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}
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void kinc_g5_vertex_buffer_destroy(kinc_g5_vertex_buffer_t *buffer) {
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// buffer->impl.vertexBuffer->Release();
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buffer->impl.uploadBuffer->Release();
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}
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float *kinc_g5_vertex_buffer_lock_all(kinc_g5_vertex_buffer_t *buffer) {
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return kinc_g5_vertex_buffer_lock(buffer, 0, kinc_g5_vertex_buffer_count(buffer));
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}
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float *kinc_g5_vertex_buffer_lock(kinc_g5_vertex_buffer_t *buffer, int start, int count) {
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buffer->impl.lastStart = start;
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buffer->impl.lastCount = count;
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D3D12_RANGE range;
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range.Begin = start * buffer->impl.myStride;
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range.End = (start + count) * buffer->impl.myStride;
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void *p;
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buffer->impl.uploadBuffer->Map(0, &range, &p);
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byte *bytes = (byte *)p;
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bytes += start * buffer->impl.myStride;
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return (float *)bytes;
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}
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void kinc_g5_vertex_buffer_unlock_all(kinc_g5_vertex_buffer_t *buffer) {
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D3D12_RANGE range;
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range.Begin = buffer->impl.lastStart * buffer->impl.myStride;
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range.End = (buffer->impl.lastStart + buffer->impl.lastCount) * buffer->impl.myStride;
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buffer->impl.uploadBuffer->Unmap(0, &range);
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// view.BufferLocation = uploadBuffer->GetGPUVirtualAddress() + myStart * myStride;
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// commandList->CopyBufferRegion(vertexBuffer, 0, uploadBuffer, 0, count() * stride());
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// CD3DX12_RESOURCE_BARRIER barriers[1] = { CD3DX12_RESOURCE_BARRIER::Transition(vertexBuffer, D3D12_RESOURCE_STATE_COPY_DEST,
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// D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER) };
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// commandList->ResourceBarrier(1, barriers);
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}
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void kinc_g5_vertex_buffer_unlock(kinc_g5_vertex_buffer_t *buffer, int count) {
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D3D12_RANGE range;
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range.Begin = buffer->impl.lastStart * buffer->impl.myStride;
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range.End = (buffer->impl.lastStart + count) * buffer->impl.myStride;
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buffer->impl.uploadBuffer->Unmap(0, &range);
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// view.BufferLocation = uploadBuffer->GetGPUVirtualAddress() + myStart * myStride;
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// commandList->CopyBufferRegion(vertexBuffer, 0, uploadBuffer, 0, count() * stride());
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// CD3DX12_RESOURCE_BARRIER barriers[1] = { CD3DX12_RESOURCE_BARRIER::Transition(vertexBuffer, D3D12_RESOURCE_STATE_COPY_DEST,
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// D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER) };
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// commandList->ResourceBarrier(1, barriers);
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}
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int kinc_g5_internal_vertex_buffer_set(kinc_g5_vertex_buffer_t *buffer, int offset) {
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// UINT stride = myStride;
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// UINT offset = 0;
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// context->IASetVertexBuffers(0, 1, &vb, &stride, &offset);
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_current_vertex_buffer = buffer;
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return 0;
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}
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int kinc_g5_vertex_buffer_count(kinc_g5_vertex_buffer_t *buffer) {
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return buffer->impl.myCount;
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}
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int kinc_g5_vertex_buffer_stride(kinc_g5_vertex_buffer_t *buffer) {
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return buffer->impl.myStride;
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}
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