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d3d12: Fix indexed triangle fan emulation.

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This commit is contained in:
Vincent Lejeune 2015-09-15 17:59:08 +02:00
parent 0da893695e
commit 12f00a5e16
1 changed files with 45 additions and 7 deletions
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52
rpcs3/Emu/RSX/D3D12/D3D12Buffer.cpp
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@ -121,6 +121,19 @@ std::vector<D3D12_INPUT_ELEMENT_DESC> getIALayout(ID3D12Device *device, const st
return result;
}
template<typename IndexType, typename DstType, typename SrcType>
void expandIndexedTriangleFan(DstType *dst, const SrcType *src, size_t indexCount)
{
IndexType *typedDst = reinterpret_cast<IndexType *>(dst);
const IndexType *typedSrc = reinterpret_cast<const IndexType *>(src);
for (unsigned i = 0; i < indexCount - 2; i++)
{
typedDst[3 * i] = typedSrc[0];
typedDst[3 * i + 1] = typedSrc[i + 2 - 1];
typedDst[3 * i + 2] = typedSrc[i + 2];
}
}
template<typename IndexType, typename DstType, typename SrcType>
void expandIndexedQuads(DstType *dst, const SrcType *src, size_t indexCount)
{
@ -140,7 +153,6 @@ void expandIndexedQuads(DstType *dst, const SrcType *src, size_t indexCount)
}
// D3D12GS member handling buffers
@ -380,7 +392,17 @@ D3D12_INDEX_BUFFER_VIEW D3D12GSRender::uploadIndexBuffers(bool indexed_draw)
if (indexed_draw && !forcedIndexBuffer)
m_renderingInfo.m_count = m_indexed_array.m_data.size() / indexSize;
else if (indexed_draw && forcedIndexBuffer)
m_renderingInfo.m_count = 6 * m_indexed_array.m_data.size() / (4 * indexSize);
{
switch (m_draw_mode - 1)
{
case GL_TRIANGLE_FAN:
m_renderingInfo.m_count = (m_indexed_array.m_data.size() - 2) * 3;
break;
case GL_QUADS:
m_renderingInfo.m_count = 6 * m_indexed_array.m_data.size() / (4 * indexSize);
break;
}
}
else
{
switch (m_draw_mode - 1)
@ -423,13 +445,29 @@ D3D12_INDEX_BUFFER_VIEW D3D12GSRender::uploadIndexBuffers(bool indexed_draw)
else if (indexed_draw && forcedIndexBuffer)
{
// Only quads supported now
switch (m_indexed_array.m_type)
switch (m_draw_mode - 1)
{
case CELL_GCM_DRAW_INDEX_ARRAY_TYPE_32:
expandIndexedQuads<unsigned int>(bufferMap, m_indexed_array.m_data.data(), m_indexed_array.m_data.size() / 4);
case GL_TRIANGLE_FAN:
switch (m_indexed_array.m_type)
{
case CELL_GCM_DRAW_INDEX_ARRAY_TYPE_32:
expandIndexedTriangleFan<unsigned int>(bufferMap, m_indexed_array.m_data.data(), m_indexed_array.m_data.size() / 4);
break;
case CELL_GCM_DRAW_INDEX_ARRAY_TYPE_16:
expandIndexedTriangleFan<unsigned short>(bufferMap, m_indexed_array.m_data.data(), m_indexed_array.m_data.size() / 2);
break;
}
break;
case CELL_GCM_DRAW_INDEX_ARRAY_TYPE_16:
expandIndexedQuads<unsigned short>(bufferMap, m_indexed_array.m_data.data(), m_indexed_array.m_data.size() / 2);
case GL_QUADS:
switch (m_indexed_array.m_type)
{
case CELL_GCM_DRAW_INDEX_ARRAY_TYPE_32:
expandIndexedQuads<unsigned int>(bufferMap, m_indexed_array.m_data.data(), m_indexed_array.m_data.size() / 4);
break;
case CELL_GCM_DRAW_INDEX_ARRAY_TYPE_16:
expandIndexedQuads<unsigned short>(bufferMap, m_indexed_array.m_data.data(), m_indexed_array.m_data.size() / 2);
break;
}
break;
}
}