/*
 * MVKCmdDebug.mm
 *
 * Copyright (c) 2015-2022 The Brenwill Workshop Ltd. (http://www.brenwill.com)
 *
 * 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 "MVKCmdDebug.h"
#include "MVKCommandBuffer.h"
#include "MVKCommandPool.h"

#pragma mark -
#pragma mark MVKCmdDebugMarker

VkResult MVKCmdDebugMarker::setContent(MVKCommandBuffer* cmdBuff,
									   const char* pMarkerName,
									   const float color[4]) {
	[_markerName release];
	_markerName = [[NSString alloc] initWithUTF8String: pMarkerName];	// retained

	return VK_SUCCESS;
}

MVKCmdDebugMarker::~MVKCmdDebugMarker() {
	[_markerName release];
}

#pragma mark -
#pragma mark MVKCmdDebugMarkerBegin

// Vulkan debug groups are more general than Metal's.
// If a renderpass is active, push on the render command encoder, otherwise push on the command buffer.
void MVKCmdDebugMarkerBegin::encode(MVKCommandEncoder* cmdEncoder) {
	id<MTLRenderCommandEncoder> mtlCmdEnc = cmdEncoder->_mtlRenderEncoder;
	if (mtlCmdEnc) {
		[mtlCmdEnc pushDebugGroup: _markerName];
	} else {
		mvkPushDebugGroup(cmdEncoder->_mtlCmdBuffer, _markerName);
	}
}


#pragma mark -
#pragma mark MVKCmdDebugMarkerEnd

VkResult MVKCmdDebugMarkerEnd::setContent(MVKCommandBuffer* cmdBuff) { return VK_SUCCESS; }

// Vulkan debug groups are more general than Metal's.
// If a renderpass is active, pop from the render command encoder, otherwise pop from the command buffer.
void MVKCmdDebugMarkerEnd::encode(MVKCommandEncoder* cmdEncoder) {
	id<MTLRenderCommandEncoder> mtlCmdEnc = cmdEncoder->_mtlRenderEncoder;
	if (mtlCmdEnc) {
		[mtlCmdEnc popDebugGroup];
	} else {
		mvkPopDebugGroup(cmdEncoder->_mtlCmdBuffer);
	}
}


#pragma mark -
#pragma mark MVKCmdDebugMarkerInsert

void MVKCmdDebugMarkerInsert::encode(MVKCommandEncoder* cmdEncoder) {
	[cmdEncoder->getMTLEncoder() insertDebugSignpost: _markerName];
}


#pragma mark -
#pragma mark Support functions

void mvkPushDebugGroup(id<MTLCommandBuffer> mtlCmdBuffer, NSString* name) {
	if ([mtlCmdBuffer respondsToSelector: @selector(pushDebugGroup:)]) {
		[mtlCmdBuffer pushDebugGroup: name];
	}
}

void mvkPopDebugGroup(id<MTLCommandBuffer> mtlCmdBuffer) {
	if ([mtlCmdBuffer respondsToSelector: @selector(popDebugGroup)]) {
		[mtlCmdBuffer popDebugGroup];
	}
}