Skip to content

Commit

Permalink
Fixed issue with setting scissor rects in D3D12 backend
Browse files Browse the repository at this point in the history
  • Loading branch information
@TheMostDiligent
TheMostDiligent committed Mar 14, 2018
1 parent 3f757fc commit c7493c1
Show file tree
Hide file tree
Showing 2 changed files with 92 additions and 66 deletions.
2 changes: 1 addition & 1 deletion Graphics/GraphicsEngineD3D12/include/DeviceContextD3D12Impl.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -117,7 +117,7 @@ class DeviceContextD3D12Impl : public DeviceContextBase<IDeviceContextD3D12>
void TransitionD3D12VertexBuffers(class GraphicsContext &GraphCtx);
void CommitRenderTargets();
void CommitViewports();
void CommitScissorRects();
void CommitScissorRects(class GraphicsContext &GraphCtx, bool ScissorEnable);
void Flush(bool RequestNewCmdCtx);

friend class SwapChainD3D12Impl;
Expand Down
156 changes: 91 additions & 65 deletions Graphics/GraphicsEngineD3D12/src/DeviceContextD3D12Impl.cpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -89,31 +89,6 @@ namespace Diligent

IMPLEMENT_QUERY_INTERFACE( DeviceContextD3D12Impl, IID_DeviceContextD3D12, TDeviceContextBase )

const LONG MaxD3D12TexDim = D3D12_REQ_TEXTURE2D_U_OR_V_DIMENSION;
const Uint32 MaxD3D12ScissorRects = D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
static const RECT MaxD3D12TexSizeRects[D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE] =
{
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},

{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},

{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},

{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim},
{0,0, MaxD3D12TexDim,MaxD3D12TexDim}
};

void DeviceContextD3D12Impl::SetPipelineState(IPipelineState *pPipelineState)
{
// Never flush deferred context!
Expand All @@ -122,18 +97,36 @@ namespace Diligent
Flush(true);
}

// If no pipeline state is bound, we are working with the fresh command
// list. We have to commit the states set in the context that are not
// committed by the draw command (render targets, viewports, scissor rects, etc.)
bool CommitStates = !m_pPipelineState;
auto *pPipelineStateD3D12 = ValidatedCast<PipelineStateD3D12Impl>(pPipelineState);
const auto &PSODesc = pPipelineStateD3D12->GetDesc();

bool CommitStates = false;
bool CommitScissor = false;
if(!m_pPipelineState)
{
// If no pipeline state is bound, we are working with the fresh command
// list. We have to commit the states set in the context that are not
// committed by the draw command (render targets, viewports, scissor rects, etc.)
CommitStates = true;
}
else
{
const auto& OldPSODesc = m_pPipelineState->GetDesc();
// Commit all graphics states when switching from compute pipeline
// This is necessary because if the command list had been flushed
// and the first PSO set on the command list was a compute pipeline,
// the states would otherwise never be committed (since m_pPipelineState != nullptr)
CommitStates = OldPSODesc.IsComputePipeline;
// We also need to update scissor rect if ScissorEnable state has changed
CommitScissor = OldPSODesc.GraphicsPipeline.RasterizerDesc.ScissorEnable != PSODesc.GraphicsPipeline.RasterizerDesc.ScissorEnable;
}

TDeviceContextBase::SetPipelineState( pPipelineState );
auto *pPipelineStateD3D12 = ValidatedCast<PipelineStateD3D12Impl>(pPipelineState);

auto *pCmdCtx = RequestCmdContext();
const auto &Desc = pPipelineStateD3D12->GetDesc();

auto *pd3d12PSO = pPipelineStateD3D12->GetD3D12PipelineState();
if (Desc.IsComputePipeline)
if (PSODesc.IsComputePipeline)
{
pCmdCtx->AsComputeContext().SetPipelineState(pd3d12PSO);
}
Expand All @@ -142,33 +135,18 @@ namespace Diligent
auto &GraphicsCtx = pCmdCtx->AsGraphicsContext();
GraphicsCtx.SetPipelineState(pd3d12PSO);

if (CommitStates)
if(CommitStates)
{
if (Desc.GraphicsPipeline.RasterizerDesc.ScissorEnable)
{
// Commit currently set scissor rectangles
D3D12_RECT d3d12ScissorRects[MaxD3D12ScissorRects]; // Do not waste time initializing array with zeroes
for( Uint32 sr = 0; sr < m_NumScissorRects; ++sr )
{
d3d12ScissorRects[sr].left = m_ScissorRects[sr].left;
d3d12ScissorRects[sr].top = m_ScissorRects[sr].top;
d3d12ScissorRects[sr].right = m_ScissorRects[sr].right;
d3d12ScissorRects[sr].bottom = m_ScissorRects[sr].bottom;
}
GraphicsCtx.SetScissorRects(m_NumScissorRects, d3d12ScissorRects);
}
else
{
// Disable scissor rectangles
static_assert(_countof(MaxD3D12TexSizeRects) == MaxD3D12ScissorRects, "Unexpected array size");
GraphicsCtx.SetScissorRects(MaxD3D12ScissorRects, MaxD3D12TexSizeRects);
}

GraphicsCtx.SetStencilRef(m_StencilRef);
GraphicsCtx.SetBlendFactor(m_BlendFactors);
CommitRenderTargets();
CommitViewports();
}

if(CommitStates || CommitScissor)
{
CommitScissorRects(GraphicsCtx, PSODesc.GraphicsPipeline.RasterizerDesc.ScissorEnable);
}
}
m_pCommittedResourceCache = nullptr;
}
Expand Down Expand Up @@ -516,7 +494,7 @@ namespace Diligent
}
}

static const float Zero[4] = { 0.f, 0.f, 0.f, 0.f };
static constexpr float Zero[4] = { 0.f, 0.f, 0.f, 0.f };
if( RGBA == nullptr )
RGBA = Zero;

Expand Down Expand Up @@ -586,7 +564,7 @@ namespace Diligent

void DeviceContextD3D12Impl::CommitViewports()
{
const Uint32 MaxViewports = D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
constexpr Uint32 MaxViewports = D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
D3D12_VIEWPORT d3d12Viewports[MaxViewports]; // Do not waste time initializing array to zero

for( Uint32 vp = 0; vp < m_NumViewports; ++vp )
Expand All @@ -605,7 +583,7 @@ namespace Diligent

void DeviceContextD3D12Impl::SetViewports( Uint32 NumViewports, const Viewport *pViewports, Uint32 RTWidth, Uint32 RTHeight )
{
const Uint32 MaxViewports = D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
constexpr Uint32 MaxViewports = D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
VERIFY( NumViewports < MaxViewports, "Too many viewports are being set" );
NumViewports = std::min( NumViewports, MaxViewports );

Expand All @@ -615,6 +593,55 @@ namespace Diligent
CommitViewports();
}


constexpr LONG MaxD3D12TexDim = D3D12_REQ_TEXTURE2D_U_OR_V_DIMENSION;
constexpr Uint32 MaxD3D12ScissorRects = D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
static constexpr RECT MaxD3D12TexSizeRects[D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE] =
{
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },

{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },

{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },

{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim },
{ 0,0, MaxD3D12TexDim,MaxD3D12TexDim }
};

void DeviceContextD3D12Impl::CommitScissorRects(GraphicsContext &GraphCtx, bool ScissorEnable)
{
if (ScissorEnable)
{
// Commit currently set scissor rectangles
D3D12_RECT d3d12ScissorRects[MaxD3D12ScissorRects]; // Do not waste time initializing array with zeroes
for (Uint32 sr = 0; sr < m_NumScissorRects; ++sr)
{
d3d12ScissorRects[sr].left = m_ScissorRects[sr].left;
d3d12ScissorRects[sr].top = m_ScissorRects[sr].top;
d3d12ScissorRects[sr].right = m_ScissorRects[sr].right;
d3d12ScissorRects[sr].bottom = m_ScissorRects[sr].bottom;
}
GraphCtx.SetScissorRects(m_NumScissorRects, d3d12ScissorRects);
}
else
{
// Disable scissor rectangles
static_assert(_countof(MaxD3D12TexSizeRects) == MaxD3D12ScissorRects, "Unexpected array size");
GraphCtx.SetScissorRects(MaxD3D12ScissorRects, MaxD3D12TexSizeRects);
}
}

void DeviceContextD3D12Impl::SetScissorRects( Uint32 NumRects, const Rect *pRects, Uint32 RTWidth, Uint32 RTHeight )
{
const Uint32 MaxScissorRects = D3D12_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
Expand All @@ -624,18 +651,17 @@ namespace Diligent
TDeviceContextBase::SetScissorRects(NumRects, pRects, RTWidth, RTHeight);

// Only commit scissor rects if scissor test is enabled in the rasterizer state.
if( !m_pPipelineState || m_pPipelineState->GetDesc().GraphicsPipeline.RasterizerDesc.ScissorEnable )
// If scissor is currently disabled, or no PSO is bound, scissor rects will be committed by
// the SetPipelineState() when a PSO with enabled scissor test is set.
if( m_pPipelineState )
{
D3D12_RECT d3d12ScissorRects[MaxScissorRects];
VERIFY( NumRects == m_NumScissorRects, "Unexpected number of scissor rects" );
for( Uint32 sr = 0; sr < NumRects; ++sr )
const auto &PSODesc = m_pPipelineState->GetDesc();
if(!PSODesc.IsComputePipeline && PSODesc.GraphicsPipeline.RasterizerDesc.ScissorEnable)
{
d3d12ScissorRects[sr].left = m_ScissorRects[sr].left;
d3d12ScissorRects[sr].top = m_ScissorRects[sr].top;
d3d12ScissorRects[sr].right = m_ScissorRects[sr].right;
d3d12ScissorRects[sr].bottom = m_ScissorRects[sr].bottom;
VERIFY(NumRects == m_NumScissorRects, "Unexpected number of scissor rects");
auto &Ctx = RequestCmdContext()->AsGraphicsContext();
CommitScissorRects(Ctx, true);
}
RequestCmdContext()->AsGraphicsContext().SetScissorRects(NumRects, d3d12ScissorRects);
}
}

Expand Down

0 comments on commit c7493c1

Please sign in to comment.