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path: root/indra/llrender/llvertexbuffer.cpp
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Diffstat (limited to 'indra/llrender/llvertexbuffer.cpp')
-rw-r--r--indra/llrender/llvertexbuffer.cpp63
1 files changed, 49 insertions, 14 deletions
diff --git a/indra/llrender/llvertexbuffer.cpp b/indra/llrender/llvertexbuffer.cpp
index 3197866fa9..4a0b964e61 100644
--- a/indra/llrender/llvertexbuffer.cpp
+++ b/indra/llrender/llvertexbuffer.cpp
@@ -968,11 +968,11 @@ U8* LLVertexBuffer::mapVertexBuffer(S32 type, S32 index, S32 count, bool map_ran
if (useVBOs())
{
- if (!sDisableVBOMapping && gGLManager.mHasMapBufferRange)
+ if (sDisableVBOMapping || gGLManager.mHasMapBufferRange)
{
if (count == -1)
{
- count = mNumVerts;
+ count = mNumVerts-index;
}
bool mapped = false;
@@ -985,6 +985,7 @@ U8* LLVertexBuffer::mapVertexBuffer(S32 type, S32 index, S32 count, bool map_ran
if (expand_region(region, index, count))
{
mapped = true;
+ break;
}
}
}
@@ -992,7 +993,7 @@ U8* LLVertexBuffer::mapVertexBuffer(S32 type, S32 index, S32 count, bool map_ran
if (!mapped)
{
//not already mapped, map new region
- MappedRegion region(type, map_range ? -1 : index, count);
+ MappedRegion region(type, !sDisableVBOMapping && map_range ? -1 : index, count);
mMappedVertexRegions.push_back(region);
}
}
@@ -1089,7 +1090,7 @@ U8* LLVertexBuffer::mapVertexBuffer(S32 type, S32 index, S32 count, bool map_ran
map_range = false;
}
- if (map_range)
+ if (map_range && !sDisableVBOMapping)
{
return mMappedData;
}
@@ -1113,11 +1114,11 @@ U8* LLVertexBuffer::mapIndexBuffer(S32 index, S32 count, bool map_range)
if (useVBOs())
{
- if (!sDisableVBOMapping && gGLManager.mHasMapBufferRange)
+ if (sDisableVBOMapping || gGLManager.mHasMapBufferRange)
{
if (count == -1)
{
- count = mNumIndices;
+ count = mNumIndices-index;
}
bool mapped = false;
@@ -1128,13 +1129,14 @@ U8* LLVertexBuffer::mapIndexBuffer(S32 index, S32 count, bool map_range)
if (expand_region(region, index, count))
{
mapped = true;
+ break;
}
}
if (!mapped)
{
//not already mapped, map new region
- MappedRegion region(TYPE_INDEX, map_range ? -1 : index, count);
+ MappedRegion region(TYPE_INDEX, !sDisableVBOMapping && map_range ? -1 : index, count);
mMappedIndexRegions.push_back(region);
}
}
@@ -1217,7 +1219,7 @@ U8* LLVertexBuffer::mapIndexBuffer(S32 index, S32 count, bool map_range)
map_range = false;
}
- if (map_range)
+ if (map_range && !sDisableVBOMapping)
{
return mMappedIndexData;
}
@@ -1243,9 +1245,26 @@ void LLVertexBuffer::unmapBuffer(S32 type)
if(sDisableVBOMapping)
{
- stop_glerror();
- glBufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, getSize(), mMappedData);
- stop_glerror();
+ if (!mMappedVertexRegions.empty())
+ {
+ stop_glerror();
+ for (U32 i = 0; i < mMappedVertexRegions.size(); ++i)
+ {
+ const MappedRegion& region = mMappedVertexRegions[i];
+ S32 offset = region.mIndex >= 0 ? mOffsets[region.mType]+sTypeSize[region.mType]*region.mIndex : 0;
+ S32 length = sTypeSize[region.mType]*region.mCount;
+ glBufferSubDataARB(GL_ARRAY_BUFFER_ARB, offset, length, mMappedData+offset);
+ stop_glerror();
+ }
+
+ mMappedVertexRegions.clear();
+ }
+ else
+ {
+ stop_glerror();
+ glBufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, getSize(), mMappedData);
+ stop_glerror();
+ }
}
else
{
@@ -1285,9 +1304,25 @@ void LLVertexBuffer::unmapBuffer(S32 type)
{
if(sDisableVBOMapping)
{
- stop_glerror();
- glBufferSubDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0, getIndicesSize(), mMappedIndexData);
- stop_glerror();
+ if (!mMappedIndexRegions.empty())
+ {
+ for (U32 i = 0; i < mMappedIndexRegions.size(); ++i)
+ {
+ const MappedRegion& region = mMappedIndexRegions[i];
+ S32 offset = region.mIndex >= 0 ? sizeof(U16)*region.mIndex : 0;
+ S32 length = sizeof(U16)*region.mCount;
+ glBufferSubDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, offset, length, mMappedIndexData+offset);
+ stop_glerror();
+ }
+
+ mMappedIndexRegions.clear();
+ }
+ else
+ {
+ stop_glerror();
+ glBufferSubDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0, getIndicesSize(), mMappedIndexData);
+ stop_glerror();
+ }
}
else
{