宝爷Debug小记——Cocos2d-x（3.13之前的版本）底层BUG导致Spine渲染花屏

 1 static int skiptype = 0;
 2  
 3 void SkeletonRenderer::draw (Renderer* renderer, const Mat4& transform, uint32_t transformFlags) {
 4     SkeletonBatch* batch = SkeletonBatch::getInstance();
 5  
 6     for (auto t : _curTriangles)
 7     {
 8         TrianglesMgr::getInstance()->freeTriangles(t);
 9     }
10     _curTriangles.clear();
11     _triCmds.clear();
12  
13     Color3B nodeColor = getColor();
14     _skeleton->r = nodeColor.r / (float)255;
15     _skeleton->g = nodeColor.g / (float)255;
16     _skeleton->b = nodeColor.b / (float)255;
17     _skeleton->a = getDisplayedOpacity() / (float)255;
18  
19     Color4F color;
20     AttachmentVertices* attachmentVertices = nullptr;
21     for (int i = 0, n = _skeleton->slotsCount; i < n; ++i) {
22         spSlot* slot = _skeleton->drawOrder[i];
23         if (!slot->attachment) continue;
24         if (slot->attachment->type == skiptype) continue;
25  
26         switch (slot->attachment->type) {
27         case SP_ATTACHMENT_REGION: {
28             spRegionAttachment* attachment = (spRegionAttachment*)slot->attachment;
29             spRegionAttachment_computeWorldVertices(attachment, slot->bone, _worldVertices);
30             attachmentVertices = getAttachmentVertices(attachment);
31             color.r = attachment->r;
32             color.g = attachment->g;
33             color.b = attachment->b;
34             color.a = attachment->a;
35             break;
36         }
37         case SP_ATTACHMENT_MESH: {
38             spMeshAttachment* attachment = (spMeshAttachment*)slot->attachment;
39             spMeshAttachment_computeWorldVertices(attachment, slot, _worldVertices);
40             attachmentVertices = getAttachmentVertices(attachment);
41             color.r = attachment->r;
42             color.g = attachment->g;
43             color.b = attachment->b;
44             color.a = attachment->a;
45             break;
46         }
47         default:

 1 void Renderer::processRenderCommand(RenderCommand* command)
 2 {
 3     auto commandType = command->getType();
 4     if( RenderCommand::Type::TRIANGLES_COMMAND == commandType)
 5     {
 6         // flush other queues
 7         flush3D();
 8  
 9         auto cmd = static_cast<TrianglesCommand*>(command);
10  
11         // flush own queue when buffer is full
12         if(_filledVertex + cmd->getVertexCount() > VBO_SIZE || _filledIndex + cmd->getIndexCount() > INDEX_VBO_SIZE)
13         {
14             CCASSERT(cmd->getVertexCount()>= 0 && cmd->getVertexCount() < VBO_SIZE, "VBO for vertex is not big enough, please break the data down or use customized render command");
15             CCASSERT(cmd->getIndexCount()>= 0 && cmd->getIndexCount() < INDEX_VBO_SIZE, "VBO for index is not big enough, please break the data down or use customized render command");
16             drawBatchedTriangles();
17         }
18  
19         // queue it
20         _queuedTriangleCommands.push_back(cmd);
21         _filledIndex += cmd->getIndexCount();
22         _filledVertex += cmd->getVertexCount();
23     }
24  

  1 // 增加一些调试用的静态变量
  2 static bool __dbg = false;
  3 static bool __deepDbg = false;
  4 static int __cmdCount = 68;
  5 static int __curCmdCount = 0;
  6 static int __idxCount = 0;
  7 static int __vexCount = 0;
  8 static int __maxidx = 0;
  9  
 10 void Renderer::fillVerticesAndIndices(const TrianglesCommand* cmd)
 11 {
 12     memcpy(&_verts[_filledVertex], cmd->getVertices(), sizeof(V3F_C4B_T2F) * cmd->getVertexCount());
 13  
 14     // fill vertex, and convert them to world coordinates
 15     const Mat4& modelView = cmd->getModelView();
 16     for(ssize_t i=0; i < cmd->getVertexCount(); ++i)
 17     {
 18         modelView.transformPoint(&(_verts[i + _filledVertex].vertices));
 19         // 打印所有顶点的xyz和纹理uv
 20         if(__dbg && __deepDbg)
 21         {
 22             CCLOG("vertex %d is xyz %.2f,%.2f,%.2f uv %.2f,%.2f", i + _filledVertex - __vexCount,_verts[i + _filledVertex].vertices.x,
 23                 _verts[i + _filledVertex].vertices.y, _verts[i + _filledVertex].vertices.z, 
 24                 _verts[i + _filledVertex].texCoords.u, _verts[i + _filledVertex].texCoords.v);
 25         }
 26     }
 27  
 28     // fill index
 29     const unsigned short* indices = cmd->getIndices();
 30     for(ssize_t i=0; i< cmd->getIndexCount(); ++i)
 31     {
 32         _indices[_filledIndex + i] = _filledVertex + indices[i];
 33         if (__dbg)
 34         {
 35             if (__maxidx < _indices[_filledIndex + i])
 36             {
 37                 __maxidx = _indices[_filledIndex + i];
 38             }
 39             if (__deepDbg)
 40             {
 41                 CCLOG("index %d is %d", _filledIndex + i - __idxCount, _indices[_filledIndex + i] - __vexCount);
 42             }
 43         }
 44     }
 45  
 46     _filledVertex += cmd->getVertexCount();
 47     _filledIndex += cmd->getIndexCount();
 48 }
 49  
 50 void Renderer::drawBatchedTriangles()
 51 {
 52     if(_queuedTriangleCommands.empty())
 53         return;
 54  
 55     CCGL_DEBUG_INSERT_EVENT_MARKER("RENDERER_BATCH_TRIANGLES");
 56  
 57     if (__dbg)
 58     {
 59         __vexCount = 0;
 60         __idxCount = 0;
 61         __curCmdCount = 0;
 62     }
 63  
 64     _filledVertex = 0;
 65     _filledIndex = 0;
 66  
 67     /************** 1: Setup up vertices/indices *************/
 68  
 69     _triBatchesToDraw[0].offset = 0;
 70     _triBatchesToDraw[0].indicesToDraw = 0;
 71     _triBatchesToDraw[0].cmd = nullptr;
 72  
 73     int batchesTotal = 0;
 74     int prevMaterialID = -1;
 75     bool firstCommand = true;
 76  
 77     for(auto it = std::begin(_queuedTriangleCommands); it != std::end(_queuedTriangleCommands); ++it)
 78     {
 79         const auto& cmd = *it;
 80         auto currentMaterialID = cmd->getMaterialID();
 81         const bool batchable = !cmd->isSkipBatching();
 82         if (__dbg)
 83         {
 84             if (__curCmdCount % __cmdCount == 0)
 85             {
 86                 CCLOG("begin %d =====================================", __curCmdCount / __cmdCount);
 87                 __vexCount = _filledVertex;
 88                 __idxCount = _filledIndex;
 89             }
 90             ++__curCmdCount;
 91         }
 92  
 93         fillVerticesAndIndices(cmd);
 94  
 95         // in the same batch ?
 96         if (batchable && (prevMaterialID == currentMaterialID || firstCommand))
 97         {
 98             CC_ASSERT(firstCommand || _triBatchesToDraw[batchesTotal].cmd->getMaterialID() == cmd->getMaterialID() && "argh... error in logic");
 99             _triBatchesToDraw[batchesTotal].indicesToDraw += cmd->getIndexCount();
100             _triBatchesToDraw[batchesTotal].cmd = cmd;
101         }
102         else
103         {
104             // is this the first one?
105             if (!firstCommand) {
106                 batchesTotal++;
107                 _triBatchesToDraw[batchesTotal].offset = _triBatchesToDraw[batchesTotal-1].offset + _triBatchesToDraw[batchesTotal-1].indicesToDraw;
108             }
109  
110             _triBatchesToDraw[batchesTotal].cmd = cmd;
111             _triBatchesToDraw[batchesTotal].indicesToDraw = (int) cmd->getIndexCount();
112  
113             // is this a single batch ? Prevent creating a batch group then
114             if (!batchable)
115                 currentMaterialID = -1;
116         }
117  
118         // capacity full ?
119         if (batchesTotal + 1 >= _triBatchesToDrawCapacity) {
120             _triBatchesToDrawCapacity *= 1.4;
121             _triBatchesToDraw = (TriBatchToDraw*) realloc(_triBatchesToDraw, sizeof(_triBatchesToDraw[0]) * _triBatchesToDrawCapacity);
122         }
123  
124         prevMaterialID = currentMaterialID;
125         firstCommand = false;
126     }
127     batchesTotal++;
128     if (__dbg)
129     {
130         CCLOG("MAX IDX %d", __maxidx);
131     }
132     __dbg = false;
133  

1     for (int i=0; i<batchesTotal; ++i)
2     {
3         CC_ASSERT(_triBatchesToDraw[i].cmd && "Invalid batch");
4         _triBatchesToDraw[i].cmd->useMaterial();
5         glDrawElements(GL_TRIANGLES, (GLsizei) _triBatchesToDraw[i].indicesToDraw, GL_UNSIGNED_SHORT, (GLvoid*) (_triBatchesToDraw[i].offset*sizeof(_indices[0])) );
6         _drawnBatches++;
7         _drawnVertices += _triBatchesToDraw[i].indicesToDraw;
8     }