diff options
Diffstat (limited to 'indra/llrender/llvertexbuffer.cpp')
| -rw-r--r-- | indra/llrender/llvertexbuffer.cpp | 200 |
1 files changed, 147 insertions, 53 deletions
diff --git a/indra/llrender/llvertexbuffer.cpp b/indra/llrender/llvertexbuffer.cpp index 1b179bdbb1..6a218e7734 100644 --- a/indra/llrender/llvertexbuffer.cpp +++ b/indra/llrender/llvertexbuffer.cpp @@ -38,7 +38,7 @@ #include "llglslshader.h" #include "llmemory.h" -#define LL_VBO_POOLING 0 +#define LL_VBO_POOLING 1 //Next Highest Power Of Two //helper function, returns first number > v that is a power of 2, or v if v is already a power of 2 @@ -67,6 +67,7 @@ U32 wpo2(U32 i) const U32 LL_VBO_BLOCK_SIZE = 2048; +const U32 LL_VBO_POOL_MAX_SEED_SIZE = 256*1024; U32 vbo_block_size(U32 size) { //what block size will fit size? @@ -79,6 +80,7 @@ U32 vbo_block_index(U32 size) return vbo_block_size(size)/LL_VBO_BLOCK_SIZE; } +const U32 LL_VBO_POOL_SEED_COUNT = vbo_block_index(LL_VBO_POOL_MAX_SEED_SIZE); //============================================================================ @@ -91,6 +93,11 @@ LLVBOPool LLVertexBuffer::sDynamicIBOPool(GL_DYNAMIC_DRAW_ARB, GL_ELEMENT_ARRAY_ U32 LLVBOPool::sBytesPooled = 0; U32 LLVBOPool::sIndexBytesPooled = 0; +U32 LLVBOPool::sCurGLName = 1; + +std::list<U32> LLVertexBuffer::sAvailableVAOName; +U32 LLVertexBuffer::sCurVAOName = 1; + U32 LLVertexBuffer::sAllocatedIndexBytes = 0; U32 LLVertexBuffer::sIndexCount = 0; @@ -115,62 +122,51 @@ bool LLVertexBuffer::sUseStreamDraw = true; bool LLVertexBuffer::sUseVAO = false; bool LLVertexBuffer::sPreferStreamDraw = false; -const U32 FENCE_WAIT_TIME_NANOSECONDS = 10000; //1 ms -class LLGLSyncFence : public LLGLFence +U32 LLVBOPool::genBuffer() { -public: -#ifdef GL_ARB_sync - GLsync mSync; -#endif - - LLGLSyncFence() - { -#ifdef GL_ARB_sync - mSync = 0; -#endif - } + U32 ret = 0; - virtual ~LLGLSyncFence() + if (mGLNamePool.empty()) { -#ifdef GL_ARB_sync - if (mSync) - { - glDeleteSync(mSync); - } -#endif + ret = sCurGLName++; } - - void placeFence() + else { -#ifdef GL_ARB_sync - if (mSync) - { - glDeleteSync(mSync); - } - mSync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0); -#endif + ret = mGLNamePool.front(); + mGLNamePool.pop_front(); } - void wait() - { -#ifdef GL_ARB_sync - if (mSync) - { - while (glClientWaitSync(mSync, 0, FENCE_WAIT_TIME_NANOSECONDS) == GL_TIMEOUT_EXPIRED) - { //track the number of times we've waited here - static S32 waits = 0; - waits++; - } - } -#endif - } + return ret; +} +void LLVBOPool::deleteBuffer(U32 name) +{ + LLVertexBuffer::unbind(); -}; + glBindBufferARB(mType, name); + glBufferDataARB(mType, 0, NULL, mUsage); + + llassert(std::find(mGLNamePool.begin(), mGLNamePool.end(), name) == mGLNamePool.end()); + + mGLNamePool.push_back(name); + + LLVertexBuffer::unbind(); +} + + +LLVBOPool::LLVBOPool(U32 vboUsage, U32 vboType) +: mUsage(vboUsage), mType(vboType) +{ + mMissCount.resize(LL_VBO_POOL_SEED_COUNT); + std::fill(mMissCount.begin(), mMissCount.end(), 0); +} +static LLFastTimer::DeclareTimer FTM_VBO_GEN_BUFFER("gen buffers"); +static LLFastTimer::DeclareTimer FTM_VBO_BUFFER_DATA("glBufferData"); -volatile U8* LLVBOPool::allocate(U32& name, U32 size) + +volatile U8* LLVBOPool::allocate(U32& name, U32 size, bool for_seed) { llassert(vbo_block_size(size) == size); @@ -183,14 +179,23 @@ volatile U8* LLVBOPool::allocate(U32& name, U32 size) if (mFreeList.size() <= i) { mFreeList.resize(i+1); + mMissCount.resize(i+1); } - if (mFreeList[i].empty()) + if (mFreeList[i].empty() || for_seed) { //make a new buffer - glGenBuffersARB(1, &name); + { + LLFastTimer t(FTM_VBO_GEN_BUFFER); + name = genBuffer(); + } glBindBufferARB(mType, name); + if (!for_seed && i < LL_VBO_POOL_SEED_COUNT) + { //record this miss + mMissCount[i]++; + } + if (mType == GL_ARRAY_BUFFER_ARB) { LLVertexBuffer::sAllocatedBytes += size; @@ -207,10 +212,30 @@ volatile U8* LLVBOPool::allocate(U32& name, U32 size) } else { //always use a true hint of static draw when allocating non-client-backed buffers + LLFastTimer t(FTM_VBO_BUFFER_DATA); glBufferDataARB(mType, size, 0, GL_STATIC_DRAW_ARB); } glBindBufferARB(mType, 0); + + if (for_seed) + { //put into pool for future use + llassert(mFreeList.size() > i); + + Record rec; + rec.mGLName = name; + rec.mClientData = ret; + + if (mType == GL_ARRAY_BUFFER_ARB) + { + sBytesPooled += size; + } + else + { + sIndexBytesPooled += size; + } + mFreeList[i].push_back(rec); + } } else { @@ -263,7 +288,7 @@ void LLVBOPool::release(U32 name, volatile U8* buffer, U32 size) { llassert(vbo_block_size(size) == size); -#if LL_VBO_POOLING +#if 0 && LL_VBO_POOLING U32 i = vbo_block_index(size); @@ -290,7 +315,7 @@ void LLVBOPool::release(U32 name, volatile U8* buffer, U32 size) mFreeList[i].push_back(rec); } #else //no pooling - glDeleteBuffersARB(1, &name); + deleteBuffer(name); ll_aligned_free_16((U8*) buffer); if (mType == GL_ARRAY_BUFFER_ARB) @@ -304,6 +329,31 @@ void LLVBOPool::release(U32 name, volatile U8* buffer, U32 size) #endif } +void LLVBOPool::seedPool() +{ + U32 dummy_name = 0; + + if (mFreeList.size() < LL_VBO_POOL_SEED_COUNT) + { + mFreeList.resize(LL_VBO_POOL_SEED_COUNT); + } + + for (U32 i = 0; i < LL_VBO_POOL_SEED_COUNT; i++) + { + if (mMissCount[i] > mFreeList[i].size()) + { + U32 size = i*LL_VBO_BLOCK_SIZE; + + S32 count = mMissCount[i] - mFreeList[i].size(); + for (U32 j = 0; j < count; ++j) + { + allocate(dummy_name, size, true); + } + } + } +} + + void LLVBOPool::cleanup() { U32 size = 1; @@ -316,8 +366,8 @@ void LLVBOPool::cleanup() { Record& r = l.front(); - glDeleteBuffersARB(1, &r.mGLName); - + deleteBuffer(r.mGLName); + if (r.mClientData) { ll_aligned_free_16((void*) r.mClientData); @@ -339,6 +389,9 @@ void LLVBOPool::cleanup() size *= 2; } + + //reset miss counts + std::fill(mMissCount.begin(), mMissCount.end(), 0); } @@ -372,6 +425,39 @@ U32 LLVertexBuffer::sGLMode[LLRender::NUM_MODES] = GL_LINE_LOOP, }; +//static +U32 LLVertexBuffer::getVAOName() +{ + U32 ret = 0; + + if (!sAvailableVAOName.empty()) + { + ret = sAvailableVAOName.front(); + sAvailableVAOName.pop_front(); + } + else + { + glGenVertexArrays(1, &ret); + } + + return ret; +} + +//static +void LLVertexBuffer::releaseVAOName(U32 name) +{ + sAvailableVAOName.push_back(name); +} + + +//static +void LLVertexBuffer::seedPools() +{ + sStreamVBOPool.seedPool(); + sDynamicVBOPool.seedPool(); + sStreamIBOPool.seedPool(); + sDynamicIBOPool.seedPool(); +} //static void LLVertexBuffer::setupClientArrays(U32 data_mask) @@ -981,7 +1067,7 @@ LLVertexBuffer::~LLVertexBuffer() if (mGLArray) { #if GL_ARB_vertex_array_object - glDeleteVertexArrays(1, &mGLArray); + releaseVAOName(mGLArray); #endif } @@ -1266,7 +1352,7 @@ void LLVertexBuffer::allocateBuffer(S32 nverts, S32 nindices, bool create) if (gGLManager.mHasVertexArrayObject && useVBOs() && (LLRender::sGLCoreProfile || sUseVAO)) { #if GL_ARB_vertex_array_object - glGenVertexArrays(1, &mGLArray); + mGLArray = getVAOName(); #endif setupVertexArray(); } @@ -2136,6 +2222,14 @@ void LLVertexBuffer::flush() } } +// bind for transform feedback (quick 'n dirty) +void LLVertexBuffer::bindForFeedback(U32 channel, U32 type, U32 index, U32 count) +{ + U32 offset = mOffsets[type] + sTypeSize[type]*index; + U32 size= (sTypeSize[type]*count); + glBindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, channel, mGLBuffer, offset, size); +} + // Set for rendering void LLVertexBuffer::setBuffer(U32 data_mask) { |