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- only update matrices if they change

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This commit is contained in:
Magnus Norddahl 2019-03-02 23:47:56 +01:00
parent 2a6d37dd73
commit c30edaa21a
2 changed files with 33 additions and 8 deletions
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39
src/rendering/vulkan/renderer/vk_renderstate.cpp
View file

@ -18,6 +18,7 @@
VkRenderState::VkRenderState()
{
mIdentityMatrix.loadIdentity();
Reset();
}
@ -427,30 +428,52 @@ static void CopyToBuffer(uint32_t &offset, const T &data, VKDataBuffer *buffer)
}
}
template<typename T>
static void BufferedSet(bool &modified, T &dst, const T &src)
{
if (dst == src)
return;
dst = src;
modified = true;
}
static void BufferedSet(bool &modified, VSMatrix &dst, const VSMatrix &src)
{
if (memcmp(dst.get(), src.get(), sizeof(FLOATTYPE) * 16) == 0)
return;
dst = src;
modified = true;
}
void VkRenderState::ApplyMatrices()
{
bool modified = (mMatricesOffset == 0); // always modified first call
if (mTextureMatrixEnabled)
{
mMatrices.TextureMatrix = mTextureMatrix;
BufferedSet(modified, mMatrices.TextureMatrix, mTextureMatrix);
}
else
{
mMatrices.TextureMatrix.loadIdentity();
BufferedSet(modified, mMatrices.TextureMatrix, mIdentityMatrix);
}
if (mModelMatrixEnabled)
{
mMatrices.ModelMatrix = mModelMatrix;
mMatrices.NormalModelMatrix.computeNormalMatrix(mModelMatrix);
BufferedSet(modified, mMatrices.ModelMatrix, mModelMatrix);
if (modified)
mMatrices.NormalModelMatrix.computeNormalMatrix(mModelMatrix);
}
else
{
mMatrices.ModelMatrix.loadIdentity();
mMatrices.NormalModelMatrix.loadIdentity();
BufferedSet(modified, mMatrices.ModelMatrix, mIdentityMatrix);
BufferedSet(modified, mMatrices.NormalModelMatrix, mIdentityMatrix);
}
auto fb = GetVulkanFrameBuffer();
CopyToBuffer(mMatricesOffset, mMatrices, fb->MatricesUBO);
if (modified)
{
auto fb = GetVulkanFrameBuffer();
CopyToBuffer(mMatricesOffset, mMatrices, fb->MatricesUBO);
}
}
void VkRenderState::ApplyVertexBuffers()

2
src/rendering/vulkan/renderer/vk_renderstate.h
View file

@ -80,4 +80,6 @@ private:
uint32_t mMatricesOffset = 0;
uint32_t mDataIndex = -1;
uint32_t mStreamDataOffset = 0;
VSMatrix mIdentityMatrix;
};