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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 "d3d11_test.h"
RD_TEST(D3D11_Large_Buffer, D3D11GraphicsTest)
{
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");
CreateDefaultInputLayout(vsblob);
ID3D11VertexShaderPtr vs = CreateVS(vsblob);
ID3D11PixelShaderPtr ps = CreatePS(psblob);
uint32_t indices[3] = {0, 1000000, 2345678};
ID3D11BufferPtr ib = MakeBuffer().Index().Data(indices);
ID3D11BufferPtr vb = MakeBuffer().Vertex().Size(128 * 1024 * 1024).Mappable();
D3D11_MAPPED_SUBRESOURCE mapped = Map(vb, 0, D3D11_MAP_WRITE_DISCARD);
DefaultA2V *verts = (DefaultA2V *)mapped.pData;
verts[indices[0]] = DefaultTri[0];
verts[indices[1]] = DefaultTri[1];
verts[indices[2]] = DefaultTri[2];
ctx->Unmap(vb, 0);
// make a simple texture so that the structured data includes texture initial states
ID3D11Texture2DPtr fltTex = MakeTexture(DXGI_FORMAT_R32G32B32A32_FLOAT, 4, 4).RTV();
ID3D11RenderTargetViewPtr fltRT = MakeRTV(fltTex);
while(Running())
{
ClearRenderTargetView(bbRTV, {0.2f, 0.2f, 0.2f, 1.0f});
ClearRenderTargetView(fltRT, {0.2f, 0.2f, 0.2f, 1.0f});
IASetVertexBuffer(vb, sizeof(DefaultA2V), 0);
ctx->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
ctx->IASetInputLayout(defaultLayout);
ctx->IASetIndexBuffer(ib, DXGI_FORMAT_R32_UINT, 0);
ctx->VSSetShader(vs, NULL, 0);
ctx->PSSetShader(ps, NULL, 0);
RSSetViewport({0.0f, 0.0f, (float)screenWidth, (float)screenHeight, 0.0f, 1.0f});
ctx->OMSetRenderTargets(1, &bbRTV.GetInterfacePtr(), NULL);
ctx->DrawIndexed(3, 0, 0);
Present();
}
return 0;
}
};
REGISTER_TEST();
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