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Merge pull request #1561 from BeastLe9enD/master

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Added optimized support for VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT when MVK_CONFIG_PREFILL_METAL_COMMAND_BUFFERS is used
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Bill Hollings 2022-04-05 14:12:03 -04:00 committed by GitHub
commit 76aca81fac
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 96 additions and 60 deletions
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10
MoltenVK/MoltenVK/Commands/MVKCommandBuffer.h
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@ -166,7 +166,9 @@ protected:
bool canPrefill();
void prefill();
void clearPrefilledMTLCommandBuffer();
void releaseCommands();
void releaseCommands(MVKCommand* command);
void releaseRecordedCommands();
void flushImmediateCmdEncoder();
MVKCommand* _head = nullptr;
MVKCommand* _tail = nullptr;
@ -175,6 +177,8 @@ protected:
std::atomic_flag _isExecutingNonConcurrently;
VkCommandBufferInheritanceInfo _secondaryInheritanceInfo;
id<MTLCommandBuffer> _prefilledMTLCmdBuffer = nil;
MVKCommandEncodingContext* _immediateCmdEncodingContext = nullptr;
MVKCommandEncoder* _immediateCmdEncoder = nullptr;
bool _isSecondary;
bool _doesContinueRenderPass;
bool _canAcceptCommands;
@ -275,6 +279,10 @@ public:
/** Encode commands from the command buffer onto the Metal command buffer. */
void encode(id<MTLCommandBuffer> mtlCmdBuff, MVKCommandEncodingContext* pEncodingContext);
void beginEncoding(id<MTLCommandBuffer> mtlCmdBuff, MVKCommandEncodingContext* pEncodingContext);
void encodeCommands(MVKCommand* command);
void endEncoding();
/** Encode commands from the specified secondary command buffer onto the Metal command buffer. */
void encodeSecondary(MVKCommandBuffer* secondaryCmdBuffer);

96
MoltenVK/MoltenVK/Commands/MVKCommandBuffer.mm
View File

@ -51,23 +51,50 @@ VkResult MVKCommandBuffer::begin(const VkCommandBufferBeginInfo* pBeginInfo) {
bool hasInheritInfo = mvkSetOrClear(&_secondaryInheritanceInfo, pInheritInfo);
_doesContinueRenderPass = mvkAreAllFlagsEnabled(usage, VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT) && hasInheritInfo;
if(canPrefill()) {
@autoreleasepool {
uint32_t qIdx = 0;
_prefilledMTLCmdBuffer = _commandPool->newMTLCommandBuffer(qIdx); // retain
_immediateCmdEncodingContext = new MVKCommandEncodingContext;
_immediateCmdEncoder = new MVKCommandEncoder(this);
_immediateCmdEncoder->beginEncoding(_prefilledMTLCmdBuffer, _immediateCmdEncodingContext);
}
}
return getConfigurationResult();
}
void MVKCommandBuffer::releaseCommands() {
MVKCommand* cmd = _head;
while (cmd) {
MVKCommand* nextCmd = cmd->_next; // Establish next before returning current to pool.
(cmd->getTypePool(getCommandPool()))->returnObject(cmd);
cmd = nextCmd;
void MVKCommandBuffer::releaseCommands(MVKCommand* command) {
while(command) {
MVKCommand* nextCommand = command->_next; // Establish next before returning current to pool.
(command->getTypePool(getCommandPool()))->returnObject(command);
command = nextCommand;
}
}
void MVKCommandBuffer::releaseRecordedCommands() {
releaseCommands(_head);
_head = nullptr;
_tail = nullptr;
}
void MVKCommandBuffer::flushImmediateCmdEncoder() {
if(_immediateCmdEncoder) {
_immediateCmdEncoder->endEncoding();
delete _immediateCmdEncoder;
_immediateCmdEncoder = nullptr;
delete _immediateCmdEncodingContext;
_immediateCmdEncodingContext = nullptr;
}
}
VkResult MVKCommandBuffer::reset(VkCommandBufferResetFlags flags) {
flushImmediateCmdEncoder();
clearPrefilledMTLCommandBuffer();
releaseCommands();
releaseRecordedCommands();
_doesContinueRenderPass = false;
_canAcceptCommands = false;
_isReusable = false;
@ -89,7 +116,9 @@ VkResult MVKCommandBuffer::reset(VkCommandBufferResetFlags flags) {
VkResult MVKCommandBuffer::end() {
_canAcceptCommands = false;
prefill();
flushImmediateCmdEncoder();
return getConfigurationResult();
}
@ -99,6 +128,15 @@ void MVKCommandBuffer::addCommand(MVKCommand* command) {
return;
}
if(_immediateCmdEncoder) {
_immediateCmdEncoder->encodeCommands(command);
if( !_isReusable ) {
releaseCommands(command);
return;
}
}
if (_tail) { _tail->_next = command; }
command->_next = nullptr;
_tail = command;
@ -141,27 +179,6 @@ bool MVKCommandBuffer::canExecute() {
return true;
}
// If we can, prefill a MTLCommandBuffer with the commands in this command buffer.
// Wrap in autorelease pool to capture autoreleased Metal encoding activity.
void MVKCommandBuffer::prefill() {
@autoreleasepool {
clearPrefilledMTLCommandBuffer();
if ( !canPrefill() ) { return; }
uint32_t qIdx = 0;
_prefilledMTLCmdBuffer = _commandPool->newMTLCommandBuffer(qIdx); // retain
MVKCommandEncodingContext encodingContext;
MVKCommandEncoder encoder(this);
encoder.encode(_prefilledMTLCmdBuffer, &encodingContext);
// Once encoded onto Metal, if this command buffer is not reusable, we don't need the
// MVKCommand instances anymore, so release them in order to reduce memory pressure.
if ( !_isReusable ) { releaseCommands(); }
}
}
bool MVKCommandBuffer::canPrefill() {
bool wantPrefill = _device->shouldPrefillMTLCommandBuffers();
return wantPrefill && !(_isSecondary || _supportsConcurrentExecution);
@ -251,6 +268,12 @@ MVKRenderSubpass* MVKCommandBuffer::getLastMultiviewSubpass() {
void MVKCommandEncoder::encode(id<MTLCommandBuffer> mtlCmdBuff,
MVKCommandEncodingContext* pEncodingContext) {
beginEncoding(mtlCmdBuff, pEncodingContext);
encodeCommands(_cmdBuffer->_head);
endEncoding();
}
void MVKCommandEncoder::beginEncoding(id<MTLCommandBuffer> mtlCmdBuff, MVKCommandEncodingContext* pEncodingContext) {
_framebuffer = nullptr;
_renderPass = nullptr;
_subpassContents = VK_SUBPASS_CONTENTS_INLINE;
@ -262,20 +285,25 @@ void MVKCommandEncoder::encode(id<MTLCommandBuffer> mtlCmdBuff,
_mtlCmdBuffer = mtlCmdBuff; // not retained
setLabelIfNotNil(_mtlCmdBuffer, _cmdBuffer->_debugName);
}
MVKCommand* cmd = _cmdBuffer->_head;
while (cmd) {
void MVKCommandEncoder::encodeCommands(MVKCommand* command) {
while(command) {
uint32_t prevMVPassIdx = _multiviewPassIndex;
cmd->encode(this);
command->encode(this);
if(_multiviewPassIndex > prevMVPassIdx) {
// This means we're in a multiview render pass, and we moved on to the
// next view group. Re-encode all commands in the subpass again for this group.
cmd = _lastMultiviewPassCmd->_next;
command = _lastMultiviewPassCmd->_next;
} else {
cmd = cmd->_next;
command = command->_next;
}
}
}
void MVKCommandEncoder::endEncoding() {
endCurrentMetalEncoding();
finishQueries();
}