GrD3DBuffer.cpp File Reference

#include "src/gpu/ganesh/d3d/GrD3DBuffer.h"
#include "src/gpu/ganesh/d3d/GrD3DGpu.h"
#include "src/gpu/ganesh/d3d/GrD3DUtil.h"

Go to the source code of this file.

Macros
#define	VALIDATE()   do {} while(false)

Functions
static gr_cp< ID3D12Resource >	make_d3d_buffer (GrD3DGpu *gpu, size_t size, GrGpuBufferType intendedType, GrAccessPattern accessPattern, D3D12_RESOURCE_STATES *resourceState, sk_sp< GrD3DAlloc > *alloc)

Macro Definition Documentation

VALIDATE

#define VALIDATE

(

)

do {} while(false)

Definition at line 16 of file GrD3DBuffer.cpp.

Function Documentation

make_d3d_buffer()

static gr_cp< ID3D12Resource > make_d3d_buffer ( GrD3DGpu *  gpu, size_t  size, GrGpuBufferType  intendedType, GrAccessPattern  accessPattern, D3D12_RESOURCE_STATES *  resourceState, sk_sp< GrD3DAlloc > *  alloc  )

static

Definition at line 19 of file GrD3DBuffer.cpp.

                                                                       {
    D3D12_HEAP_TYPE heapType;
    if (accessPattern == kStatic_GrAccessPattern) {
        SkASSERT(intendedType != GrGpuBufferType::kXferCpuToGpu &&
                 intendedType != GrGpuBufferType::kXferGpuToCpu);
        heapType = D3D12_HEAP_TYPE_DEFAULT;
        // Needs to be transitioned to appropriate state to be read in shader
        *resourceState = D3D12_RESOURCE_STATE_COPY_DEST;
    } else {
        if (intendedType == GrGpuBufferType::kXferGpuToCpu) {
            heapType = D3D12_HEAP_TYPE_READBACK;
            // Cannot be changed
            *resourceState = D3D12_RESOURCE_STATE_COPY_DEST;
        } else {
            heapType = D3D12_HEAP_TYPE_UPLOAD;
            // Cannot be changed
            // Includes VERTEX_AND_CONSTANT_BUFFER, INDEX_BUFFER, INDIRECT_ARGUMENT, and COPY_SOURCE
            *resourceState = D3D12_RESOURCE_STATE_GENERIC_READ;
        }
    }
 
    D3D12_RESOURCE_DESC bufferDesc = {};
    bufferDesc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
    bufferDesc.Alignment = 0;  // default alignment
    bufferDesc.Width = size;
    bufferDesc.Height = 1;
    bufferDesc.DepthOrArraySize = 1;
    bufferDesc.MipLevels = 1;
    bufferDesc.Format = DXGI_FORMAT_UNKNOWN;
    bufferDesc.SampleDesc.Count = 1;
    bufferDesc.SampleDesc.Quality = 0; // Doesn't apply to buffers
    bufferDesc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
    bufferDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
 
    gr_cp<ID3D12Resource> resource = gpu->memoryAllocator()->createResource(
            heapType, &bufferDesc, *resourceState, alloc, nullptr);
 
    return resource;
}