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Vertex buffer fixes (#2458)

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* Vulkan: calculate vertex count from all streams, not just the first

...which might not exist in the first place

* Vulkan: use correct vertex stream offsets and handles

* D3D11: remember stream vertex count when no index buffer is bound
This commit is contained in:
pezcode
2021-04-08 19:28:42 +02:00
committed by GitHub
parent 9ec2472763
commit b298851bf0
2 changed files with 27 additions and 20 deletions
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41
src/renderer_vk.cpp
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@@ -7456,7 +7456,10 @@ VK_DESTROY
;
const VertexLayout* layouts[BGFX_CONFIG_MAX_VERTEX_STREAMS];
VertexBufferHandle streamHandles[BGFX_CONFIG_MAX_VERTEX_STREAMS];
uint32_t streamOffsets[BGFX_CONFIG_MAX_VERTEX_STREAMS];
uint8_t numStreams = 0;
uint32_t numVertices = draw.m_numVertices;
if (UINT8_MAX != draw.m_streamMask)
{
for (uint32_t idx = 0, streamMask = draw.m_streamMask
@@ -7468,19 +7471,28 @@ VK_DESTROY
streamMask >>= ntz;
idx += ntz;
currentState.m_stream[idx].m_layoutHandle = draw.m_stream[idx].m_layoutHandle;
currentState.m_stream[idx].m_handle = draw.m_stream[idx].m_handle;
currentState.m_stream[idx].m_startVertex = draw.m_stream[idx].m_startVertex;
currentState.m_stream[idx].m_layoutHandle = draw.m_stream[idx].m_layoutHandle;
currentState.m_stream[idx].m_handle = draw.m_stream[idx].m_handle;
currentState.m_stream[idx].m_startVertex = draw.m_stream[idx].m_startVertex;
uint16_t handle = draw.m_stream[idx].m_handle.idx;
const VertexBufferVK& vb = m_vertexBuffers[handle];
VertexBufferHandle handle = draw.m_stream[idx].m_handle;
const VertexBufferVK& vb = m_vertexBuffers[handle.idx];
const uint16_t decl = isValid(draw.m_stream[idx].m_layoutHandle)
? draw.m_stream[idx].m_layoutHandle.idx
: vb.m_layoutHandle.idx
;
const VertexLayout& layout = m_vertexLayouts[decl];
const uint32_t stride = layout.m_stride;
layouts[numStreams] = &layout;
streamHandles[numStreams] = handle;
streamOffsets[numStreams] = draw.m_stream[idx].m_startVertex * stride;
layouts[numStreams] = &layout;
numVertices = bx::uint32_min(UINT32_MAX == draw.m_numVertices
? vb.m_size/stride
: draw.m_numVertices
, numVertices
);
}
}
@@ -7646,12 +7658,12 @@ VK_DESTROY
uint32_t numIndices = 0;
for (uint32_t ii = 0; ii < numStreams; ++ii)
{
VkDeviceSize offset = 0;
const VkDeviceSize offset = streamOffsets[ii];
vkCmdBindVertexBuffers(
m_commandBuffer
, ii
, 1
, &m_vertexBuffers[draw.m_stream[ii].m_handle.idx].m_buffer
, &m_vertexBuffers[streamHandles[ii].idx].m_buffer
, &offset
);
}
@@ -7685,14 +7697,6 @@ VK_DESTROY
if (!isValid(draw.m_indexBuffer) )
{
const VertexBufferVK& vertexBuffer = m_vertexBuffers[draw.m_stream[0].m_handle.idx];
const VertexLayout* layout = layouts[0];
const uint32_t numVertices = UINT32_MAX == draw.m_numVertices
? vertexBuffer.m_size / layout->m_stride
: draw.m_numVertices
;
if (isValid(draw.m_indirectBuffer) )
{
vkCmdDrawIndirect(
@@ -7709,11 +7713,10 @@ VK_DESTROY
m_commandBuffer
, numVertices
, draw.m_numInstances
, draw.m_stream[0].m_startVertex
, 0
, 0
);
}
}
else
{
@@ -7751,7 +7754,7 @@ VK_DESTROY
, numIndices
, draw.m_numInstances
, draw.m_startIndex
, draw.m_stream[0].m_startVertex
, 0
, 0
);
}