Fix an overflow issue when a static buffer is invalidated.

CONTRIBUTORS

@@ -37,3 +37,4 @@ Aitor Moreno <aitormoreno at gmail.com>
 Jim Hauxwell <james at dattrax.co.uk>
 ddefrostt
 timeless
+Yore Apex

src/common/version.h

 #define MAJOR_VERSION 0
 #define MINOR_VERSION 0
 #define BUILD_VERSION 0
-#define BUILD_REVISION 701
+#define BUILD_REVISION 702
 
 #define STRINGIFY(x) #x
 #define MACRO_STRINGIFY(x) STRINGIFY(x)

src/libGLESv2/VertexDataManager.cpp

@@ -139,9 +139,23 @@ GLenum VertexDataManager::prepareVertexData(GLint start, GLsizei count, Translat
                 else if (staticBuffer->lookupAttribute(attribs[i]) == -1)
                 {
                     // This static buffer doesn't have matching attributes, so fall back to using the streaming buffer
-                    mStreamingBuffer->addRequiredSpaceFor(staticBuffer);
                     buffer->invalidateStaticData();
 
+                    // Add the space of all previous attributes belonging to the invalidated static buffer to the streaming buffer
+                    for (int previous = 0; previous < i; previous++)
+                    {
+                        if (translated[previous].active && attribs[previous].mArrayEnabled)
+                        {
+                            Buffer *previousBuffer = attribs[previous].mBoundBuffer.get();
+                            StaticVertexBuffer *previousStaticBuffer = previousBuffer ? previousBuffer->getStaticVertexBuffer() : NULL;
+
+                            if (staticBuffer == previousStaticBuffer)
+                            {
+                                mStreamingBuffer->addRequiredSpace(spaceRequired(attribs[previous], count));
+                            }
+                        }
+                    }
+
                     mStreamingBuffer->addRequiredSpace(spaceRequired(attribs[i], count));
                 }    
             }
@@ -583,11 +597,6 @@ void ArrayVertexBuffer::addRequiredSpace(UINT requiredSpace)
     mRequiredSpace += requiredSpace;
 }
 
-void ArrayVertexBuffer::addRequiredSpaceFor(ArrayVertexBuffer *buffer)
-{
-    mRequiredSpace += buffer->mRequiredSpace;
-}
-
 StreamingVertexBuffer::StreamingVertexBuffer(IDirect3DDevice9 *device, std::size_t initialSize) : ArrayVertexBuffer(device, initialSize, D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY)
 {
 }

src/libGLESv2/VertexDataManager.h

@@ -67,7 +67,6 @@ class ArrayVertexBuffer : public VertexBuffer
     virtual void *map(const VertexAttribute &attribute, std::size_t requiredSpace, std::size_t *streamOffset) = 0;
     virtual void reserveRequiredSpace() = 0;
     void addRequiredSpace(UINT requiredSpace);
-    void addRequiredSpaceFor(ArrayVertexBuffer *buffer);
 
   protected:
     std::size_t mBufferSize;