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/******************************************************************************
* The MIT License (MIT)
*
* Copyright (c) 2019-2022 Baldur Karlsson
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
#include "d3d12_test.h"
RD_TEST(D3D12_Large_Buffer, D3D12GraphicsTest)
{
static constexpr const char *Description =
"Draws a triangle over the span of a very large buffer to ensure readbacks work correctly.";
int main()
{
// initialise, create window, create device, etc
if(!Init())
return 3;
ID3DBlobPtr vsblob = Compile(D3DDefaultVertex, "main", "vs_4_0");
ID3DBlobPtr psblob = Compile(D3DDefaultPixel, "main", "ps_4_0");
uint32_t indices[3] = {0, 1000000, 2345678};
ID3D12ResourcePtr ib = MakeBuffer().Data(indices);
ID3D12ResourcePtr vb = MakeBuffer().Size(128 * 1024 * 1024).Upload();
D3D12_RANGE range = {0, 0};
byte *ptr = NULL;
CHECK_HR(vb->Map(0, &range, (void **)&ptr));
DefaultA2V *verts = (DefaultA2V *)ptr;
verts[indices[0]] = DefaultTri[0];
verts[indices[1]] = DefaultTri[1];
verts[indices[2]] = DefaultTri[2];
range.End = (SIZE_T)vb->GetDesc().Width;
vb->Unmap(0, &range);
ID3D12RootSignaturePtr sig = MakeSig({});
ID3D12PipelineStatePtr pso = MakePSO().RootSig(sig).InputLayout().VS(vsblob).PS(psblob);
ID3D12ResourcePtr rtvtex = MakeTexture(DXGI_FORMAT_R32G32B32A32_FLOAT, 4, 4)
.RTV()
.InitialState(D3D12_RESOURCE_STATE_RENDER_TARGET);
while(Running())
{
ID3D12GraphicsCommandListPtr cmd = GetCommandBuffer();
Reset(cmd);
ID3D12ResourcePtr bb = StartUsingBackbuffer(cmd, D3D12_RESOURCE_STATE_RENDER_TARGET);
D3D12_CPU_DESCRIPTOR_HANDLE rtv =
MakeRTV(bb).Format(DXGI_FORMAT_R8G8B8A8_UNORM_SRGB).CreateCPU(0);
ClearRenderTargetView(cmd, rtv, {0.2f, 0.2f, 0.2f, 1.0f});
ClearRenderTargetView(cmd, MakeRTV(rtvtex).CreateCPU(1), {0.2f, 0.2f, 0.2f, 1.0f});
cmd->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
IASetVertexBuffer(cmd, vb, sizeof(DefaultA2V), 0);
IASetIndexBuffer(cmd, ib, DXGI_FORMAT_R32_UINT, 0);
cmd->SetPipelineState(pso);
cmd->SetGraphicsRootSignature(sig);
RSSetViewport(cmd, {0.0f, 0.0f, (float)screenWidth, (float)screenHeight, 0.0f, 1.0f});
RSSetScissorRect(cmd, {0, 0, screenWidth, screenHeight});
OMSetRenderTargets(cmd, {rtv}, {});
cmd->DrawIndexedInstanced(3, 1, 0, 0, 0);
FinishUsingBackbuffer(cmd, D3D12_RESOURCE_STATE_RENDER_TARGET);
cmd->Close();
Submit({cmd});
Present();
}
return 0;
}
};
REGISTER_TEST();
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