fix some crashes in metal implementation when pathCount and eltCount are 0 #65
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@ -952,6 +952,11 @@ void oc_mtl_render_batch(oc_mtl_canvas_backend* backend,
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int pathCount = backend->pathCount - backend->pathBatchStart;
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int eltCount = backend->eltCount - backend->eltBatchStart;
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if(!pathCount || !eltCount)
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{
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return;
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}
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//NOTE: update intermediate buffers sizes if needed
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oc_mtl_grow_buffer_if_needed(backend, &backend->pathQueueBuffer, pathCount * sizeof(oc_mtl_path_queue));
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@ -984,108 +989,96 @@ void oc_mtl_render_batch(oc_mtl_canvas_backend* backend,
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[blitEncoder endEncoding];
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//NOTE: path setup pass
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if(pathCount > 0)
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{
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id<MTLComputeCommandEncoder> pathEncoder = [surface->commandBuffer computeCommandEncoder];
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pathEncoder.label = @"path pass";
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[pathEncoder setComputePipelineState:backend->pathPipeline];
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id<MTLComputeCommandEncoder> pathEncoder = [surface->commandBuffer computeCommandEncoder];
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pathEncoder.label = @"path pass";
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[pathEncoder setComputePipelineState:backend->pathPipeline];
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int tileQueueMax = [backend->tileQueueBuffer length] / sizeof(oc_mtl_tile_queue);
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int tileQueueMax = [backend->tileQueueBuffer length] / sizeof(oc_mtl_tile_queue);
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[pathEncoder setBytes:&pathCount length:sizeof(int) atIndex:0];
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[pathEncoder setBuffer:backend->pathBuffer[backend->bufferIndex] offset:pathBufferOffset atIndex:1];
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[pathEncoder setBuffer:backend->pathQueueBuffer offset:0 atIndex:2];
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[pathEncoder setBuffer:backend->tileQueueBuffer offset:0 atIndex:3];
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[pathEncoder setBuffer:backend->tileQueueCountBuffer offset:0 atIndex:4];
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[pathEncoder setBytes:&tileQueueMax length:sizeof(int) atIndex:5];
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[pathEncoder setBytes:&tileSize length:sizeof(int) atIndex:6];
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[pathEncoder setBytes:&scale length:sizeof(int) atIndex:7];
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[pathEncoder setBytes:&pathCount length:sizeof(int) atIndex:0];
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[pathEncoder setBuffer:backend->pathBuffer[backend->bufferIndex] offset:pathBufferOffset atIndex:1];
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[pathEncoder setBuffer:backend->pathQueueBuffer offset:0 atIndex:2];
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[pathEncoder setBuffer:backend->tileQueueBuffer offset:0 atIndex:3];
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[pathEncoder setBuffer:backend->tileQueueCountBuffer offset:0 atIndex:4];
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[pathEncoder setBytes:&tileQueueMax length:sizeof(int) atIndex:5];
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[pathEncoder setBytes:&tileSize length:sizeof(int) atIndex:6];
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[pathEncoder setBytes:&scale length:sizeof(int) atIndex:7];
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MTLSize pathGridSize = MTLSizeMake(pathCount, 1, 1);
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MTLSize pathGroupSize = MTLSizeMake([backend->pathPipeline maxTotalThreadsPerThreadgroup], 1, 1);
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MTLSize pathGridSize = MTLSizeMake(pathCount, 1, 1);
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MTLSize pathGroupSize = MTLSizeMake([backend->pathPipeline maxTotalThreadsPerThreadgroup], 1, 1);
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[pathEncoder dispatchThreads:pathGridSize threadsPerThreadgroup:pathGroupSize];
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[pathEncoder endEncoding];
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}
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[pathEncoder dispatchThreads:pathGridSize threadsPerThreadgroup:pathGroupSize];
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[pathEncoder endEncoding];
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//NOTE: segment setup pass
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id<MTLComputeCommandEncoder> segmentEncoder = [surface->commandBuffer computeCommandEncoder];
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segmentEncoder.label = @"segment pass";
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[segmentEncoder setComputePipelineState:backend->segmentPipeline];
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int tileOpMax = [backend->tileOpBuffer length] / sizeof(oc_mtl_tile_op);
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int segmentMax = [backend->segmentBuffer length] / sizeof(oc_mtl_segment);
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//NOTE: segment setup pass
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if(eltCount > 0)
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{
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id<MTLComputeCommandEncoder> segmentEncoder = [surface->commandBuffer computeCommandEncoder];
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segmentEncoder.label = @"segment pass";
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[segmentEncoder setComputePipelineState:backend->segmentPipeline];
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[segmentEncoder setBytes:&eltCount length:sizeof(int) atIndex:0];
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[segmentEncoder setBuffer:backend->elementBuffer[backend->bufferIndex] offset:elementBufferOffset atIndex:1];
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[segmentEncoder setBuffer:backend->segmentCountBuffer offset:0 atIndex:2];
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[segmentEncoder setBuffer:backend->segmentBuffer offset:0 atIndex:3];
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[segmentEncoder setBuffer:backend->pathQueueBuffer offset:0 atIndex:4];
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[segmentEncoder setBuffer:backend->tileQueueBuffer offset:0 atIndex:5];
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[segmentEncoder setBuffer:backend->tileOpBuffer offset:0 atIndex:6];
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[segmentEncoder setBuffer:backend->tileOpCountBuffer offset:0 atIndex:7];
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[segmentEncoder setBytes:&tileOpMax length:sizeof(int) atIndex:8];
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[segmentEncoder setBytes:&segmentMax length:sizeof(int) atIndex:9];
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[segmentEncoder setBytes:&tileSize length:sizeof(int) atIndex:10];
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[segmentEncoder setBytes:&scale length:sizeof(int) atIndex:11];
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[segmentEncoder setBuffer:backend->logBuffer[backend->bufferIndex] offset:0 atIndex:12];
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[segmentEncoder setBuffer:backend->logOffsetBuffer[backend->bufferIndex] offset:0 atIndex:13];
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[segmentEncoder setBytes:&eltCount length:sizeof(int) atIndex:0];
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[segmentEncoder setBuffer:backend->elementBuffer[backend->bufferIndex] offset:elementBufferOffset atIndex:1];
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[segmentEncoder setBuffer:backend->segmentCountBuffer offset:0 atIndex:2];
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[segmentEncoder setBuffer:backend->segmentBuffer offset:0 atIndex:3];
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[segmentEncoder setBuffer:backend->pathQueueBuffer offset:0 atIndex:4];
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[segmentEncoder setBuffer:backend->tileQueueBuffer offset:0 atIndex:5];
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[segmentEncoder setBuffer:backend->tileOpBuffer offset:0 atIndex:6];
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[segmentEncoder setBuffer:backend->tileOpCountBuffer offset:0 atIndex:7];
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[segmentEncoder setBytes:&tileOpMax length:sizeof(int) atIndex:8];
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[segmentEncoder setBytes:&segmentMax length:sizeof(int) atIndex:9];
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[segmentEncoder setBytes:&tileSize length:sizeof(int) atIndex:10];
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[segmentEncoder setBytes:&scale length:sizeof(int) atIndex:11];
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[segmentEncoder setBuffer:backend->logBuffer[backend->bufferIndex] offset:0 atIndex:12];
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[segmentEncoder setBuffer:backend->logOffsetBuffer[backend->bufferIndex] offset:0 atIndex:13];
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MTLSize segmentGridSize = MTLSizeMake(eltCount, 1, 1);
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MTLSize segmentGroupSize = MTLSizeMake([backend->segmentPipeline maxTotalThreadsPerThreadgroup], 1, 1);
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MTLSize segmentGridSize = MTLSizeMake(eltCount, 1, 1);
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MTLSize segmentGroupSize = MTLSizeMake([backend->segmentPipeline maxTotalThreadsPerThreadgroup], 1, 1);
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[segmentEncoder dispatchThreads:segmentGridSize threadsPerThreadgroup:segmentGroupSize];
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[segmentEncoder endEncoding];
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}
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[segmentEncoder dispatchThreads:segmentGridSize threadsPerThreadgroup:segmentGroupSize];
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[segmentEncoder endEncoding];
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//NOTE: backprop pass
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if(pathCount > 0)
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{
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id<MTLComputeCommandEncoder> backpropEncoder = [surface->commandBuffer computeCommandEncoder];
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backpropEncoder.label = @"backprop pass";
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[backpropEncoder setComputePipelineState:backend->backpropPipeline];
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id<MTLComputeCommandEncoder> backpropEncoder = [surface->commandBuffer computeCommandEncoder];
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backpropEncoder.label = @"backprop pass";
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[backpropEncoder setComputePipelineState:backend->backpropPipeline];
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[backpropEncoder setBuffer:backend->pathQueueBuffer offset:0 atIndex:0];
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[backpropEncoder setBuffer:backend->tileQueueBuffer offset:0 atIndex:1];
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[backpropEncoder setBuffer:backend->logBuffer[backend->bufferIndex] offset:0 atIndex:2];
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[backpropEncoder setBuffer:backend->logOffsetBuffer[backend->bufferIndex] offset:0 atIndex:3];
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[backpropEncoder setBuffer:backend->pathQueueBuffer offset:0 atIndex:0];
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[backpropEncoder setBuffer:backend->tileQueueBuffer offset:0 atIndex:1];
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[backpropEncoder setBuffer:backend->logBuffer[backend->bufferIndex] offset:0 atIndex:2];
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[backpropEncoder setBuffer:backend->logOffsetBuffer[backend->bufferIndex] offset:0 atIndex:3];
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MTLSize backpropGroupSize = MTLSizeMake([backend->backpropPipeline maxTotalThreadsPerThreadgroup], 1, 1);
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MTLSize backpropGridSize = MTLSizeMake(pathCount * backpropGroupSize.width, 1, 1);
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MTLSize backpropGroupSize = MTLSizeMake([backend->backpropPipeline maxTotalThreadsPerThreadgroup], 1, 1);
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MTLSize backpropGridSize = MTLSizeMake(pathCount * backpropGroupSize.width, 1, 1);
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[backpropEncoder dispatchThreads:backpropGridSize threadsPerThreadgroup:backpropGroupSize];
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[backpropEncoder endEncoding];
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}
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[backpropEncoder dispatchThreads:backpropGridSize threadsPerThreadgroup:backpropGroupSize];
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[backpropEncoder endEncoding];
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//NOTE: merge pass
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if(pathCount > 0)
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{
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id<MTLComputeCommandEncoder> mergeEncoder = [surface->commandBuffer computeCommandEncoder];
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mergeEncoder.label = @"merge pass";
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[mergeEncoder setComputePipelineState:backend->mergePipeline];
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id<MTLComputeCommandEncoder> mergeEncoder = [surface->commandBuffer computeCommandEncoder];
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mergeEncoder.label = @"merge pass";
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[mergeEncoder setComputePipelineState:backend->mergePipeline];
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[mergeEncoder setBytes:&pathCount length:sizeof(int) atIndex:0];
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[mergeEncoder setBuffer:backend->pathBuffer[backend->bufferIndex] offset:pathBufferOffset atIndex:1];
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[mergeEncoder setBuffer:backend->pathQueueBuffer offset:0 atIndex:2];
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[mergeEncoder setBuffer:backend->tileQueueBuffer offset:0 atIndex:3];
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[mergeEncoder setBuffer:backend->tileOpBuffer offset:0 atIndex:4];
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[mergeEncoder setBuffer:backend->tileOpCountBuffer offset:0 atIndex:5];
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[mergeEncoder setBuffer:backend->rasterDispatchBuffer offset:0 atIndex:6];
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[mergeEncoder setBuffer:backend->screenTilesBuffer offset:0 atIndex:7];
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[mergeEncoder setBytes:&tileOpMax length:sizeof(int) atIndex:8];
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[mergeEncoder setBytes:&tileSize length:sizeof(int) atIndex:9];
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[mergeEncoder setBytes:&scale length:sizeof(float) atIndex:10];
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[mergeEncoder setBuffer:backend->logBuffer[backend->bufferIndex] offset:0 atIndex:11];
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[mergeEncoder setBuffer:backend->logOffsetBuffer[backend->bufferIndex] offset:0 atIndex:12];
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[mergeEncoder setBytes:&pathCount length:sizeof(int) atIndex:0];
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[mergeEncoder setBuffer:backend->pathBuffer[backend->bufferIndex] offset:pathBufferOffset atIndex:1];
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[mergeEncoder setBuffer:backend->pathQueueBuffer offset:0 atIndex:2];
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[mergeEncoder setBuffer:backend->tileQueueBuffer offset:0 atIndex:3];
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[mergeEncoder setBuffer:backend->tileOpBuffer offset:0 atIndex:4];
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[mergeEncoder setBuffer:backend->tileOpCountBuffer offset:0 atIndex:5];
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[mergeEncoder setBuffer:backend->rasterDispatchBuffer offset:0 atIndex:6];
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[mergeEncoder setBuffer:backend->screenTilesBuffer offset:0 atIndex:7];
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[mergeEncoder setBytes:&tileOpMax length:sizeof(int) atIndex:8];
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[mergeEncoder setBytes:&tileSize length:sizeof(int) atIndex:9];
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[mergeEncoder setBytes:&scale length:sizeof(float) atIndex:10];
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[mergeEncoder setBuffer:backend->logBuffer[backend->bufferIndex] offset:0 atIndex:11];
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[mergeEncoder setBuffer:backend->logOffsetBuffer[backend->bufferIndex] offset:0 atIndex:12];
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MTLSize mergeGridSize = MTLSizeMake(nTilesX, nTilesY, 1);
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MTLSize mergeGroupSize = MTLSizeMake(OC_MTL_TILE_SIZE, OC_MTL_TILE_SIZE, 1);
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MTLSize mergeGridSize = MTLSizeMake(nTilesX, nTilesY, 1);
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MTLSize mergeGroupSize = MTLSizeMake(OC_MTL_TILE_SIZE, OC_MTL_TILE_SIZE, 1);
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[mergeEncoder dispatchThreads:mergeGridSize threadsPerThreadgroup:mergeGroupSize];
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[mergeEncoder endEncoding];
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}
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[mergeEncoder dispatchThreads:mergeGridSize threadsPerThreadgroup:mergeGroupSize];
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[mergeEncoder endEncoding];
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//NOTE: raster pass
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id<MTLComputeCommandEncoder> rasterEncoder = [surface->commandBuffer computeCommandEncoder];
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