| // Copyright 2019 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "dawn_native/CommandValidation.h" |
| |
| #include "common/BitSetIterator.h" |
| #include "dawn_native/BindGroup.h" |
| #include "dawn_native/Buffer.h" |
| #include "dawn_native/CommandBufferStateTracker.h" |
| #include "dawn_native/Commands.h" |
| #include "dawn_native/PassResourceUsage.h" |
| #include "dawn_native/RenderBundle.h" |
| #include "dawn_native/RenderPipeline.h" |
| |
| namespace dawn_native { |
| |
| namespace { |
| |
| inline MaybeError ValidateRenderBundleCommand(CommandIterator* commands, |
| Command type, |
| CommandBufferStateTracker* commandBufferState, |
| const AttachmentState* attachmentState, |
| uint64_t* debugGroupStackSize, |
| const char* disallowedMessage) { |
| switch (type) { |
| case Command::Draw: { |
| commands->NextCommand<DrawCmd>(); |
| DAWN_TRY(commandBufferState->ValidateCanDraw()); |
| } break; |
| |
| case Command::DrawIndexed: { |
| commands->NextCommand<DrawIndexedCmd>(); |
| DAWN_TRY(commandBufferState->ValidateCanDrawIndexed()); |
| } break; |
| |
| case Command::DrawIndirect: { |
| commands->NextCommand<DrawIndirectCmd>(); |
| DAWN_TRY(commandBufferState->ValidateCanDraw()); |
| } break; |
| |
| case Command::DrawIndexedIndirect: { |
| commands->NextCommand<DrawIndexedIndirectCmd>(); |
| DAWN_TRY(commandBufferState->ValidateCanDrawIndexed()); |
| } break; |
| |
| case Command::InsertDebugMarker: { |
| InsertDebugMarkerCmd* cmd = commands->NextCommand<InsertDebugMarkerCmd>(); |
| commands->NextData<char>(cmd->length + 1); |
| } break; |
| |
| case Command::PopDebugGroup: { |
| commands->NextCommand<PopDebugGroupCmd>(); |
| DAWN_TRY(ValidateCanPopDebugGroup(*debugGroupStackSize)); |
| *debugGroupStackSize -= 1; |
| } break; |
| |
| case Command::PushDebugGroup: { |
| PushDebugGroupCmd* cmd = commands->NextCommand<PushDebugGroupCmd>(); |
| commands->NextData<char>(cmd->length + 1); |
| *debugGroupStackSize += 1; |
| } break; |
| |
| case Command::SetRenderPipeline: { |
| SetRenderPipelineCmd* cmd = commands->NextCommand<SetRenderPipelineCmd>(); |
| RenderPipelineBase* pipeline = cmd->pipeline.Get(); |
| |
| if (DAWN_UNLIKELY(pipeline->GetAttachmentState() != attachmentState)) { |
| return DAWN_VALIDATION_ERROR("Pipeline attachment state is not compatible"); |
| } |
| commandBufferState->SetRenderPipeline(pipeline); |
| } break; |
| |
| case Command::SetBindGroup: { |
| SetBindGroupCmd* cmd = commands->NextCommand<SetBindGroupCmd>(); |
| if (cmd->dynamicOffsetCount > 0) { |
| commands->NextData<uint32_t>(cmd->dynamicOffsetCount); |
| } |
| |
| commandBufferState->SetBindGroup(cmd->index, cmd->group.Get()); |
| } break; |
| |
| case Command::SetIndexBuffer: { |
| commands->NextCommand<SetIndexBufferCmd>(); |
| commandBufferState->SetIndexBuffer(); |
| } break; |
| |
| case Command::SetVertexBuffer: { |
| SetVertexBufferCmd* cmd = commands->NextCommand<SetVertexBufferCmd>(); |
| commandBufferState->SetVertexBuffer(cmd->slot); |
| } break; |
| |
| default: |
| return DAWN_VALIDATION_ERROR(disallowedMessage); |
| } |
| |
| return {}; |
| } |
| |
| } // namespace |
| |
| MaybeError ValidateCanPopDebugGroup(uint64_t debugGroupStackSize) { |
| if (debugGroupStackSize == 0) { |
| return DAWN_VALIDATION_ERROR("Pop must be balanced by a corresponding Push."); |
| } |
| return {}; |
| } |
| |
| MaybeError ValidateFinalDebugGroupStackSize(uint64_t debugGroupStackSize) { |
| if (debugGroupStackSize != 0) { |
| return DAWN_VALIDATION_ERROR("Each Push must be balanced by a corresponding Pop."); |
| } |
| return {}; |
| } |
| |
| MaybeError ValidateRenderBundle(CommandIterator* commands, |
| const AttachmentState* attachmentState) { |
| CommandBufferStateTracker commandBufferState; |
| uint64_t debugGroupStackSize = 0; |
| |
| Command type; |
| while (commands->NextCommandId(&type)) { |
| DAWN_TRY(ValidateRenderBundleCommand(commands, type, &commandBufferState, |
| attachmentState, &debugGroupStackSize, |
| "Command disallowed inside a render bundle")); |
| } |
| |
| DAWN_TRY(ValidateFinalDebugGroupStackSize(debugGroupStackSize)); |
| return {}; |
| } |
| |
| MaybeError ValidateRenderPass(CommandIterator* commands, const BeginRenderPassCmd* renderPass) { |
| CommandBufferStateTracker commandBufferState; |
| uint64_t debugGroupStackSize = 0; |
| |
| Command type; |
| while (commands->NextCommandId(&type)) { |
| switch (type) { |
| case Command::EndRenderPass: { |
| commands->NextCommand<EndRenderPassCmd>(); |
| DAWN_TRY(ValidateFinalDebugGroupStackSize(debugGroupStackSize)); |
| return {}; |
| } break; |
| |
| case Command::ExecuteBundles: { |
| ExecuteBundlesCmd* cmd = commands->NextCommand<ExecuteBundlesCmd>(); |
| auto bundles = commands->NextData<Ref<RenderBundleBase>>(cmd->count); |
| for (uint32_t i = 0; i < cmd->count; ++i) { |
| if (DAWN_UNLIKELY(renderPass->attachmentState.Get() != |
| bundles[i]->GetAttachmentState())) { |
| return DAWN_VALIDATION_ERROR( |
| "Render bundle is not compatible with render pass"); |
| } |
| } |
| |
| if (cmd->count > 0) { |
| // Reset state. It is invalidated after render bundle execution. |
| commandBufferState = CommandBufferStateTracker{}; |
| } |
| |
| } break; |
| |
| case Command::SetStencilReference: { |
| commands->NextCommand<SetStencilReferenceCmd>(); |
| } break; |
| |
| case Command::SetBlendColor: { |
| commands->NextCommand<SetBlendColorCmd>(); |
| } break; |
| |
| case Command::SetViewport: { |
| commands->NextCommand<SetViewportCmd>(); |
| } break; |
| |
| case Command::SetScissorRect: { |
| commands->NextCommand<SetScissorRectCmd>(); |
| } break; |
| |
| default: |
| DAWN_TRY(ValidateRenderBundleCommand( |
| commands, type, &commandBufferState, renderPass->attachmentState.Get(), |
| &debugGroupStackSize, "Command disallowed inside a render pass")); |
| } |
| } |
| |
| UNREACHABLE(); |
| return DAWN_VALIDATION_ERROR("Unfinished render pass"); |
| } |
| |
| MaybeError ValidateComputePass(CommandIterator* commands) { |
| CommandBufferStateTracker commandBufferState; |
| uint64_t debugGroupStackSize = 0; |
| |
| Command type; |
| while (commands->NextCommandId(&type)) { |
| switch (type) { |
| case Command::EndComputePass: { |
| commands->NextCommand<EndComputePassCmd>(); |
| DAWN_TRY(ValidateFinalDebugGroupStackSize(debugGroupStackSize)); |
| return {}; |
| } break; |
| |
| case Command::Dispatch: { |
| commands->NextCommand<DispatchCmd>(); |
| DAWN_TRY(commandBufferState.ValidateCanDispatch()); |
| } break; |
| |
| case Command::DispatchIndirect: { |
| commands->NextCommand<DispatchIndirectCmd>(); |
| DAWN_TRY(commandBufferState.ValidateCanDispatch()); |
| } break; |
| |
| case Command::InsertDebugMarker: { |
| InsertDebugMarkerCmd* cmd = commands->NextCommand<InsertDebugMarkerCmd>(); |
| commands->NextData<char>(cmd->length + 1); |
| } break; |
| |
| case Command::PopDebugGroup: { |
| commands->NextCommand<PopDebugGroupCmd>(); |
| DAWN_TRY(ValidateCanPopDebugGroup(debugGroupStackSize)); |
| debugGroupStackSize--; |
| } break; |
| |
| case Command::PushDebugGroup: { |
| PushDebugGroupCmd* cmd = commands->NextCommand<PushDebugGroupCmd>(); |
| commands->NextData<char>(cmd->length + 1); |
| debugGroupStackSize++; |
| } break; |
| |
| case Command::SetComputePipeline: { |
| SetComputePipelineCmd* cmd = commands->NextCommand<SetComputePipelineCmd>(); |
| ComputePipelineBase* pipeline = cmd->pipeline.Get(); |
| commandBufferState.SetComputePipeline(pipeline); |
| } break; |
| |
| case Command::SetBindGroup: { |
| SetBindGroupCmd* cmd = commands->NextCommand<SetBindGroupCmd>(); |
| if (cmd->dynamicOffsetCount > 0) { |
| commands->NextData<uint32_t>(cmd->dynamicOffsetCount); |
| } |
| commandBufferState.SetBindGroup(cmd->index, cmd->group.Get()); |
| } break; |
| |
| default: |
| return DAWN_VALIDATION_ERROR("Command disallowed inside a compute pass"); |
| } |
| } |
| |
| UNREACHABLE(); |
| return DAWN_VALIDATION_ERROR("Unfinished compute pass"); |
| } |
| |
| // Performs the per-pass usage validation checks |
| // This will eventually need to differentiate between render and compute passes. |
| // It will be valid to use a buffer both as uniform and storage in the same compute pass. |
| MaybeError ValidatePassResourceUsage(const PassResourceUsage& pass) { |
| // Buffers can only be used as single-write or multiple read. |
| for (size_t i = 0; i < pass.buffers.size(); ++i) { |
| const BufferBase* buffer = pass.buffers[i]; |
| wgpu::BufferUsage usage = pass.bufferUsages[i]; |
| |
| if (usage & ~buffer->GetUsage()) { |
| return DAWN_VALIDATION_ERROR("Buffer missing usage for the pass"); |
| } |
| |
| bool readOnly = (usage & kReadOnlyBufferUsages) == usage; |
| bool singleUse = wgpu::HasZeroOrOneBits(usage); |
| |
| if (!readOnly && !singleUse) { |
| return DAWN_VALIDATION_ERROR( |
| "Buffer used as writable usage and another usage in pass"); |
| } |
| } |
| |
| // Textures can only be used as single-write or multiple read. |
| // TODO(cwallez@chromium.org): implement per-subresource tracking |
| for (size_t i = 0; i < pass.textures.size(); ++i) { |
| const TextureBase* texture = pass.textures[i]; |
| wgpu::TextureUsage usage = pass.textureUsages[i]; |
| |
| if (usage & ~texture->GetUsage()) { |
| return DAWN_VALIDATION_ERROR("Texture missing usage for the pass"); |
| } |
| |
| // For textures the only read-only usage in a pass is Sampled, so checking the |
| // usage constraint simplifies to checking a single usage bit is set. |
| if (!wgpu::HasZeroOrOneBits(usage)) { |
| return DAWN_VALIDATION_ERROR("Texture used with more than one usage in pass"); |
| } |
| } |
| |
| return {}; |
| } |
| |
| } // namespace dawn_native |
