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Free dynamic buffers at the end of the frame to avoid overlaps.

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This commit is contained in:
bkaradzic 2012-06-24 18:25:26 -07:00
parent d65c875397
commit 42271092a0
3 changed files with 63 additions and 14 deletions
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6
include/bgfx.h
View File

@ -333,6 +333,9 @@ namespace bgfx
///
void destroyVertexBuffer(VertexBufferHandle _handle);
///
DynamicIndexBufferHandle createDynamicIndexBuffer(uint16_t _num);
///
DynamicIndexBufferHandle createDynamicIndexBuffer(const Memory* _mem);
@ -342,6 +345,9 @@ namespace bgfx
///
void destroyDynamicIndexBuffer(DynamicIndexBufferHandle _handle);
//
DynamicVertexBufferHandle createDynamicVertexBuffer(uint16_t _num, const VertexDecl& _decl);
///
DynamicVertexBufferHandle createDynamicVertexBuffer(const Memory* _mem, const VertexDecl& _decl);

10
src/bgfx.cpp
View File

@ -765,6 +765,11 @@ namespace bgfx
s_ctx.destroyVertexBuffer(_handle);
}
DynamicIndexBufferHandle createDynamicIndexBuffer(uint16_t _num)
{
return s_ctx.createDynamicIndexBuffer(_num);
}
DynamicIndexBufferHandle createDynamicIndexBuffer(const Memory* _mem)
{
return s_ctx.createDynamicIndexBuffer(_mem);
@ -780,6 +785,11 @@ namespace bgfx
s_ctx.destroyDynamicIndexBuffer(_handle);
}
DynamicVertexBufferHandle createDynamicVertexBuffer(uint16_t _num, const VertexDecl& _decl)
{
return s_ctx.createDynamicVertexBuffer(_num, _decl);
}
DynamicVertexBufferHandle createDynamicVertexBuffer(const Memory* _mem, const VertexDecl& _decl)
{
return s_ctx.createDynamicVertexBuffer(_mem, _decl);

61
src/bgfx_p.h
View File

@ -1598,10 +1598,10 @@ namespace bgfx
m_submit->free(_handle);
}
DynamicIndexBufferHandle createDynamicIndexBuffer(const Memory* _mem)
DynamicIndexBufferHandle createDynamicIndexBuffer(uint16_t _num)
{
DynamicIndexBufferHandle handle = BGFX_INVALID_HANDLE;
uint32_t size = BX_ALIGN_16(_mem->size);
uint32_t size = BX_ALIGN_16(uint32_t(_num*2) );
uint64_t ptr = m_dynamicIndexBufferAllocator.alloc(size);
if (ptr == NonLocalAllocator::invalidBlock)
{
@ -1625,12 +1625,13 @@ namespace bgfx
dib.m_offset = uint32_t(ptr);
dib.m_size = size;
CommandBuffer& cmdbuf = getCommandBuffer(CommandBuffer::UpdateDynamicIndexBuffer);
cmdbuf.write(dib.m_handle);
cmdbuf.write(dib.m_offset);
cmdbuf.write(dib.m_size);
cmdbuf.write(_mem);
return handle;
}
DynamicIndexBufferHandle createDynamicIndexBuffer(const Memory* _mem)
{
DynamicIndexBufferHandle handle = createDynamicIndexBuffer(_mem->size/2);
updateDynamicIndexBuffer(handle, _mem);
return handle;
}
@ -1645,16 +1646,21 @@ namespace bgfx
}
void destroyDynamicIndexBuffer(DynamicIndexBufferHandle _handle)
{
m_freeDynamicIndexBufferHandle[m_numFreeDynamicIndexBufferHandles++] = _handle;
}
void destroyDynamicIndexBufferInternal(DynamicIndexBufferHandle _handle)
{
DynamicIndexBuffer& dib = m_dynamicIndexBuffers[_handle.idx];
m_dynamicIndexBufferAllocator.free(uint64_t(dib.m_handle.idx)<<32 | dib.m_offset);
m_dynamicIndexBufferHandle.free(_handle.idx);
}
DynamicVertexBufferHandle createDynamicVertexBuffer(const Memory* _mem, const VertexDecl& _decl)
DynamicVertexBufferHandle createDynamicVertexBuffer(uint16_t _num, const VertexDecl& _decl)
{
DynamicVertexBufferHandle handle = BGFX_INVALID_HANDLE;
uint32_t size = strideAlign16(_mem->size, _decl.m_stride);
uint32_t size = strideAlign16(_num*_decl.m_stride, _decl.m_stride);
uint64_t ptr = m_dynamicVertexBufferAllocator.alloc(size);
if (ptr == NonLocalAllocator::invalidBlock)
{
@ -1685,12 +1691,13 @@ namespace bgfx
dvb.m_decl = declHandle;
m_declRef.add(dvb.m_handle, declHandle, _decl.m_hash);
CommandBuffer& cmdbuf = getCommandBuffer(CommandBuffer::UpdateDynamicVertexBuffer);
cmdbuf.write(dvb.m_handle);
cmdbuf.write(dvb.m_offset);
cmdbuf.write(dvb.m_size);
cmdbuf.write(_mem);
return handle;
}
DynamicVertexBufferHandle createDynamicVertexBuffer(const Memory* _mem, const VertexDecl& _decl)
{
DynamicVertexBufferHandle handle = createDynamicVertexBuffer(_mem->size/_decl.m_stride, _decl);
updateDynamicVertexBuffer(handle, _mem);
return handle;
}
@ -1705,6 +1712,11 @@ namespace bgfx
}
void destroyDynamicVertexBuffer(DynamicVertexBufferHandle _handle)
{
m_freeDynamicVertexBufferHandle[m_numFreeDynamicVertexBufferHandles++] = _handle;
}
void destroyDynamicVertexBufferInternal(DynamicVertexBufferHandle _handle)
{
DynamicVertexBuffer& dvb = m_dynamicVertexBuffers[_handle.idx];
@ -2079,6 +2091,21 @@ namespace bgfx
#endif // BGFX_CONFIG_DEBUG
}
void freeDynamicBuffers()
{
for (uint16_t ii = 0, num = m_numFreeDynamicIndexBufferHandles; ii < num; ++ii)
{
destroyDynamicIndexBufferInternal(m_freeDynamicIndexBufferHandle[ii]);
}
m_numFreeDynamicIndexBufferHandles = 0;
for (uint16_t ii = 0, num = m_numFreeDynamicVertexBufferHandles; ii < num; ++ii)
{
destroyDynamicVertexBufferInternal(m_freeDynamicVertexBufferHandle[ii]);
}
m_numFreeDynamicVertexBufferHandles = 0;
}
void freeAllHandles(Frame* _frame)
{
for (uint16_t ii = 0, num = _frame->m_numFreeIndexBufferHandles; ii < num; ++ii)
@ -2129,6 +2156,7 @@ namespace bgfx
void swap()
{
freeDynamicBuffers();
m_submit->m_resolution = m_resolution;
m_submit->m_debug = m_debug;
memcpy(m_submit->m_rt, m_rt, sizeof(m_rt) );
@ -2652,6 +2680,11 @@ namespace bgfx
DynamicIndexBuffer m_dynamicIndexBuffers[BGFX_CONFIG_MAX_DYNAMIC_INDEX_BUFFERS];
DynamicVertexBuffer m_dynamicVertexBuffers[BGFX_CONFIG_MAX_DYNAMIC_VERTEX_BUFFERS];
uint16_t m_numFreeDynamicIndexBufferHandles;
uint16_t m_numFreeDynamicVertexBufferHandles;
DynamicIndexBufferHandle m_freeDynamicIndexBufferHandle[BGFX_CONFIG_MAX_DYNAMIC_INDEX_BUFFERS];
DynamicVertexBufferHandle m_freeDynamicVertexBufferHandle[BGFX_CONFIG_MAX_DYNAMIC_VERTEX_BUFFERS];
NonLocalAllocator m_dynamicIndexBufferAllocator;
HandleAlloc m_dynamicIndexBufferHandle;
NonLocalAllocator m_dynamicVertexBufferAllocator;