void Cursor::GetBatches(PODVector<UIBatch>& batches, PODVector<float>& vertexData, const IntRect& currentScissor)
{
unsigned initialSize = vertexData.Size();
const IntVector2& offset = shapeInfos_[shape_].hotSpot_;
Vector2 floatOffset(-(float)offset.x_, -(float)offset.y_);
BorderImage::GetBatches(batches, vertexData, currentScissor);
for (unsigned i = initialSize; i < vertexData.Size(); i += 6)
{
vertexData[i] += floatOffset.x_;
vertexData[i + 1] += floatOffset.y_;
}
}
void GUICanvas::_fillBuffer(UINT8* vertices, UINT32* indices, UINT32 vertexOffset, UINT32 indexOffset,
UINT32 maxNumVerts, UINT32 maxNumIndices, UINT32 renderElementIdx) const
{
UINT8* uvs = vertices + sizeof(Vector2);
UINT32 indexStride = sizeof(UINT32);
Vector2I offset(mLayoutData.area.x, mLayoutData.area.y);
Rect2I clipRect = mLayoutData.getLocalClipRect();
Vector2 floatOffset((float)offset.x, (float)offset.y);
buildAllTriangleElementsIfDirty(floatOffset, clipRect);
const CanvasElement& element = findElement(renderElementIdx);
renderElementIdx -= element.renderElemStart;
switch(element.type)
{
case CanvasElementType::Image:
{
UINT32 vertexStride = sizeof(Vector2) * 2;
const Rect2I& area = mImageData[element.dataId].area;
offset.x += area.x;
offset.y += area.y;
clipRect.x -= area.x;
clipRect.y -= area.y;
element.imageSprite->fillBuffer(vertices, uvs, indices, vertexOffset, indexOffset, maxNumVerts, maxNumIndices,
vertexStride, indexStride, renderElementIdx, offset, clipRect);
}
break;
case CanvasElementType::Text:
{
UINT32 vertexStride = sizeof(Vector2) * 2;
const Vector2I& position = mTextData[element.dataId].position;
offset += position;
clipRect.x += position.x;
clipRect.y += position.y;
element.textSprite->fillBuffer(vertices, uvs, indices, vertexOffset, indexOffset, maxNumVerts, maxNumIndices,
vertexStride, indexStride, renderElementIdx, offset, mLayoutData.getLocalClipRect());
}
break;
case CanvasElementType::Triangle:
{
UINT32 vertexStride = sizeof(Vector2) * 2;
UINT32 startVert = vertexOffset;
UINT32 startIndex = indexOffset;
UINT32 maxVertIdx = maxNumVerts;
UINT32 maxIndexIdx = maxNumIndices;
UINT32 numVertices = element.clippedNumVertices;
UINT32 numIndices = numVertices;
assert((startVert + numVertices) <= maxVertIdx);
assert((startIndex + numIndices) <= maxIndexIdx);
UINT8* vertDst = vertices + startVert * vertexStride;
UINT8* uvDst = uvs + startVert * vertexStride;
UINT32* indexDst = indices + startIndex;
Vector2 zeroUV;
for(UINT32 i = 0; i < element.clippedNumVertices; i++)
{
memcpy(vertDst, &mClippedVertices[element.clippedVertexStart + i], sizeof(Vector2));
memcpy(uvDst, &zeroUV, sizeof(Vector2));
vertDst += vertexStride;
uvDst += vertexStride;
indexDst[i] = i;
}
}
break;
case CanvasElementType::Line:
{
UINT32 vertexStride = sizeof(Vector2);
UINT32 startVert = vertexOffset;
UINT32 startIndex = indexOffset;
UINT32 maxVertIdx = maxNumVerts;
UINT32 maxIndexIdx = maxNumIndices;
UINT32 numVertices = element.clippedNumVertices;
UINT32 numIndices = numVertices;
assert((startVert + numVertices) <= maxVertIdx);
assert((startIndex + numIndices) <= maxIndexIdx);
UINT8* vertDst = vertices + startVert * vertexStride;
UINT32* indexDst = indices + startIndex;
for (UINT32 i = 0; i < element.clippedNumVertices; i++)
{
const Vector2& point = mClippedLineVertices[element.clippedVertexStart + i];
memcpy(vertDst, &point, sizeof(Vector2));
vertDst += vertexStride;
indexDst[i] = i;
}
}
break;
}
}
