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Split CIndexBuffer from CMeshBuffer

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This commit is contained in:
sfan5 2024-08-27 17:40:29 +02:00
parent 5d6e15bc49
commit 47e4c33a50
13 changed files with 197 additions and 104 deletions
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20
src/client/mapblock_mesh.h
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@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#pragma once
#include "irrlichttypes_extrabloated.h"
#include "irr_ptr.h"
#include "util/numeric.h"
#include "client/tile.h"
#include "voxel.h"
@ -145,25 +146,24 @@ private:
* Attach alternate `Indices` to an existing mesh buffer, to make it possible to use different
* indices with the same vertex buffer.
*
* Irrlicht does not currently support this: `CMeshBuffer` ties together a single vertex buffer
* and a single index buffer. There's no way to share these between mesh buffers.
*
*/
class PartialMeshBuffer
{
public:
PartialMeshBuffer(scene::SMeshBuffer *buffer, std::vector<u16> &&vertex_indexes) :
m_buffer(buffer), m_vertex_indexes(std::move(vertex_indexes))
{}
PartialMeshBuffer(scene::SMeshBuffer *buffer, std::vector<u16> &&vertex_indices) :
m_buffer(buffer)
{
m_indices.reset(new scene::SIndexBuffer());
m_indices->Data = std::move(vertex_indices);
}
scene::IMeshBuffer *getBuffer() const { return m_buffer; }
const std::vector<u16> &getVertexIndexes() const { return m_vertex_indexes; }
void beforeDraw() const;
void afterDraw() const;
void draw(video::IVideoDriver *driver) const;
private:
scene::SMeshBuffer *m_buffer;
mutable std::vector<u16> m_vertex_indexes;
irr_ptr<scene::SIndexBuffer> m_indices;
};
/*