#
# Copyright (c) 2018-2025 Advanced Micro Devices, Inc. All rights reserved.
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# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
import argparse
import json
from PIL import Image, ImageDraw, ImageFont
PROGRAM_VERSION = 'Vulkan/D3D12 Memory Allocator Dump Visualization 3.0.4'
IMG_WIDTH = 1200
IMG_MARGIN = 8
TEXT_MARGIN = 4
FONT_SIZE = 10
MAP_SIZE = 24
COLOR_TEXT_H1 = (0, 0, 0, 255)
COLOR_TEXT_H2 = (150, 150, 150, 255)
COLOR_OUTLINE = (155, 155, 155, 255)
COLOR_OUTLINE_HARD = (0, 0, 0, 255)
COLOR_GRID_LINE = (224, 224, 224, 255)
currentApi = ""
data = {}
def ParseArgs():
argParser = argparse.ArgumentParser(description='Visualization of Vulkan/D3D12 Memory Allocator JSON dump.')
argParser.add_argument('DumpFile', help='Path to source JSON file with memory dump created by Vulkan/D3D12 Memory Allocator library')
argParser.add_argument('-v', '--version', action='version', version=PROGRAM_VERSION)
argParser.add_argument('-o', '--output', required=True, help='Path to destination image file (e.g. PNG)')
return argParser.parse_args()
def GetDataForMemoryPool(poolTypeName):
global data
if poolTypeName in data:
return data[poolTypeName]
else:
newPoolData = {'DedicatedAllocations':[], 'Blocks':[], 'CustomPools':{}}
data[poolTypeName] = newPoolData
return newPoolData
def ProcessBlock(poolData, block):
blockInfo = {'ID': block[0], 'Size': int(block[1]['TotalBytes']), 'Suballocations':[]}
for alloc in block[1]['Suballocations']:
allocData = {'Type': alloc['Type'], 'Size': int(alloc['Size']), 'Usage': int(alloc['Usage']) if 'Usage' in alloc else 0 }
blockInfo['Suballocations'].append(allocData)
poolData['Blocks'].append(blockInfo)
def IsDataEmpty():
global data
for poolData in data.values():
if len(poolData['DedicatedAllocations']) > 0:
return False
if len(poolData['Blocks']) > 0:
return False
for customPool in poolData['CustomPools'].values():
if len(customPool['Blocks']) > 0:
return False
if len(customPool['DedicatedAllocations']) > 0:
return False
return True
def RemoveEmptyType():
global data
for poolType in list(data.keys()):
pool = data[poolType]
if len(pool['DedicatedAllocations']) > 0:
continue
if len(pool['Blocks']) > 0:
continue
empty = True
for customPool in pool['CustomPools'].values():
if len(customPool['Blocks']) > 0:
empty = False
break
if len(customPool['DedicatedAllocations']) > 0:
empty = False
break
if empty:
del data[poolType]
# Returns tuple:
# [0] image height : integer
# [1] pixels per byte : float
def CalcParams():
global data
height = IMG_MARGIN
height += FONT_SIZE + IMG_MARGIN # Grid lines legend - sizes
maxBlockSize = 0
# Get height occupied by every memory pool
for poolData in data.values():
height += FONT_SIZE + IMG_MARGIN # Memory pool title
height += len(poolData['Blocks']) * (FONT_SIZE + MAP_SIZE + IMG_MARGIN * 2)
height += len(poolData['DedicatedAllocations']) * (FONT_SIZE + MAP_SIZE + IMG_MARGIN * 2)
# Get longest block size
for dedicatedAlloc in poolData['DedicatedAllocations']:
maxBlockSize = max(maxBlockSize, dedicatedAlloc['Size'])
for block in poolData['Blocks']:
maxBlockSize = max(maxBlockSize, block['Size'])
# Same for custom pools
for customPoolData in poolData['CustomPools'].values():
height += len(customPoolData['Blocks']) * (FONT_SIZE + MAP_SIZE + IMG_MARGIN * 2)
height += len(customPoolData['DedicatedAllocations']) * (FONT_SIZE + MAP_SIZE + IMG_MARGIN * 2)
# Get longest block size
for dedicatedAlloc in customPoolData['DedicatedAllocations']:
maxBlockSize = max(maxBlockSize, dedicatedAlloc['Size'])
for block in customPoolData['Blocks']:
maxBlockSize = max(maxBlockSize, block['Size'])
return height, (IMG_WIDTH - IMG_MARGIN * 2) / float(maxBlockSize)
def BytesToStr(bytes):
if bytes < 1024:
return "%d B" % bytes
bytes /= 1024
if bytes < 1024:
return "%d KiB" % bytes
bytes /= 1024
if bytes < 1024:
return "%d MiB" % bytes
bytes /= 1024
return "%d GiB" % bytes
def TypeToColor(type, usage):
global currentApi
if type == 'FREE':
return 220, 220, 220, 255
elif type == 'UNKNOWN':
return 175, 175, 175, 255 # Gray
if currentApi == 'Vulkan':
if type == 'BUFFER':
if (usage & 0x1C0) != 0: # INDIRECT_BUFFER | VERTEX_BUFFER | INDEX_BUFFER
return 255, 148, 148, 255 # Red
elif (usage & 0x28) != 0: # STORAGE_BUFFER | STORAGE_TEXEL_BUFFER
return 255, 187, 121, 255 # Orange
elif (usage & 0x14) != 0: # UNIFORM_BUFFER | UNIFORM_TEXEL_BUFFER
return 255, 255, 0, 255 # Yellow
else:
return 255, 255, 165, 255 # Light yellow
elif type == 'IMAGE_OPTIMAL':
if (usage & 0x20) != 0: # DEPTH_STENCIL_ATTACHMENT
return 246, 128, 255, 255 # Pink
elif (usage & 0xD8) != 0: # INPUT_ATTACHMENT | TRANSIENT_ATTACHMENT | COLOR_ATTACHMENT | STORAGE
return 179, 179, 255, 255 # Blue
elif (usage & 0x4) != 0: # SAMPLED
return 0, 255, 255, 255 # Aqua
else:
return 183, 255, 255, 255 # Light aqua
elif type == 'IMAGE_LINEAR' :
return 0, 255, 0, 255 # Green
elif type == 'IMAGE_UNKNOWN':
return 0, 255, 164, 255 # Green/aqua
elif currentApi == 'Direct3D 12':
if type == 'BUFFER':
return 255, 255, 165, 255 # Light yellow
elif type == 'TEXTURE1D' or type == 'TEXTURE2D' or type == 'TEXTURE3D':
if (usage & 0x2) != 0: # D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL
return 246, 128, 255, 255 # Pink
elif (usage & 0x5) != 0: # D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET | D3D12_RESOURCE_FLAG_ALLOW_UNORDERED_ACCESS
return 179, 179, 255, 255 # Blue
elif (usage & 0x8) == 0: # Not having D3D12_RESOURCE_FLAG_DENY_SHARED_RESOURCE
return 0, 255, 255, 255 # Aqua
else:
return 183, 255, 255, 255 # Light aqua
else:
print("Unknown graphics API!")
exit(1)
assert False
return 0, 0, 0, 255
def DrawBlock(draw, y, block, pixelsPerByte):
sizePixels = int(block['Size'] * pixelsPerByte)
draw.rectangle([IMG_MARGIN, y, IMG_MARGIN + sizePixels, y + MAP_SIZE], fill=TypeToColor('FREE', 0), outline=None)
byte = 0
x = 0
lastHardLineX = -1
for alloc in block['Suballocations']:
byteEnd = byte + alloc['Size']
xEnd = int(byteEnd * pixelsPerByte)
if alloc['Type'] != 'FREE':
if xEnd > x + 1:
draw.rectangle([IMG_MARGIN + x, y, IMG_MARGIN + xEnd, y + MAP_SIZE], fill=TypeToColor(alloc['Type'], alloc['Usage']), outline=COLOR_OUTLINE)
# Hard line was been overwritten by rectangle outline: redraw it.
if lastHardLineX == x:
draw.line([IMG_MARGIN + x, y, IMG_MARGIN + x, y + MAP_SIZE], fill=COLOR_OUTLINE_HARD)
else:
draw.line([IMG_MARGIN + x, y, IMG_MARGIN + x, y + MAP_SIZE], fill=COLOR_OUTLINE_HARD)
lastHardLineX = x
byte = byteEnd
x = xEnd
def DrawDedicatedAllocationBlock(draw, y, dedicatedAlloc, pixelsPerByte):
sizePixels = int(dedicatedAlloc['Size'] * pixelsPerByte)
draw.rectangle([IMG_MARGIN, y, IMG_MARGIN + sizePixels, y + MAP_SIZE], fill=TypeToColor(dedicatedAlloc['Type'], dedicatedAlloc['Usage']), outline=COLOR_OUTLINE)
if __name__ == '__main__':
args = ParseArgs()
jsonSrc = json.load(open(args.DumpFile, 'rb'))
if 'General' in jsonSrc:
currentApi = jsonSrc['General']['API']
else:
print("Wrong JSON format, cannot determine graphics API!")
exit(1)
# Process default pools
if 'DefaultPools' in jsonSrc:
for memoryPool in jsonSrc['DefaultPools'].items():
poolData = GetDataForMemoryPool(memoryPool[0])
# Get dedicated allocations
for dedicatedAlloc in memoryPool[1]['DedicatedAllocations']:
allocData = {'Type': dedicatedAlloc['Type'], 'Size': int(dedicatedAlloc['Size']), 'Usage': int(dedicatedAlloc['Usage'])}
poolData['DedicatedAllocations'].append(allocData)
# Get allocations in block vectors
for block in memoryPool[1]['Blocks'].items():
ProcessBlock(poolData, block)
# Process custom pools
if 'CustomPools' in jsonSrc:
for memoryPool in jsonSrc['CustomPools'].items():
poolData = GetDataForMemoryPool(memoryPool[0])
for pool in memoryPool[1]:
poolName = pool['Name']
poolData['CustomPools'][poolName] = {'DedicatedAllocations':[], 'Blocks':[]}
# Get dedicated allocations
for dedicatedAlloc in pool['DedicatedAllocations']:
allocData = {'Type': dedicatedAlloc['Type'], 'Size': int(dedicatedAlloc['Size']), 'Usage': int(dedicatedAlloc['Usage'])}
poolData['CustomPools'][poolName]['DedicatedAllocations'].append(allocData)
# Get allocations in block vectors
for block in pool['Blocks'].items():
ProcessBlock(poolData['CustomPools'][poolName], block)
if IsDataEmpty():
print("There is nothing to put on the image. Please make sure you generated the stats string with detailed map enabled.")
exit(1)
RemoveEmptyType()
# Calculate dimmensions and create data image
imgHeight, pixelsPerByte = CalcParams()
img = Image.new('RGB', (IMG_WIDTH, imgHeight), 'white')
draw = ImageDraw.Draw(img)
try:
font = ImageFont.truetype('segoeuib.ttf')
except:
font = ImageFont.load_default()
# Draw grid lines
bytesBetweenGridLines = 32
while bytesBetweenGridLines * pixelsPerByte < 64:
bytesBetweenGridLines *= 2
byte = 0
y = IMG_MARGIN
while True:
x = int(byte * pixelsPerByte)
if x > IMG_WIDTH - 2 * IMG_MARGIN:
break
draw.line([x + IMG_MARGIN, 0, x + IMG_MARGIN, imgHeight], fill=COLOR_GRID_LINE)
if byte == 0:
draw.text((x + IMG_MARGIN + TEXT_MARGIN, y), "0", fill=COLOR_TEXT_H2, font=font)
else:
text = BytesToStr(byte)
textLength = draw.textlength(text, font=font)
draw.text((x + IMG_MARGIN - textLength - TEXT_MARGIN, y), text, fill=COLOR_TEXT_H2, font=font)
byte += bytesBetweenGridLines
y += FONT_SIZE + IMG_MARGIN
# Draw main content
for memType in sorted(data.keys()):
memPoolData = data[memType]
draw.text((IMG_MARGIN, y), "Memory pool %s" % memType, fill=COLOR_TEXT_H1, font=font)
y += FONT_SIZE + IMG_MARGIN
# Draw block vectors
for block in memPoolData['Blocks']:
draw.text((IMG_MARGIN, y), "Default pool block %s" % block['ID'], fill=COLOR_TEXT_H2, font=font)
y += FONT_SIZE + IMG_MARGIN
DrawBlock(draw, y, block, pixelsPerByte)
y += MAP_SIZE + IMG_MARGIN
index = 0
# Draw dedicated allocations
for dedicatedAlloc in memPoolData['DedicatedAllocations']:
draw.text((IMG_MARGIN, y), "Dedicated allocation %d" % index, fill=COLOR_TEXT_H2, font=font)
y += FONT_SIZE + IMG_MARGIN
DrawDedicatedAllocationBlock(draw, y, dedicatedAlloc, pixelsPerByte)
y += MAP_SIZE + IMG_MARGIN
index += 1
for poolName, pool in memPoolData['CustomPools'].items():
for block in pool['Blocks']:
draw.text((IMG_MARGIN, y), "Custom pool %s block %s" % (poolName, block['ID']), fill=COLOR_TEXT_H2, font=font)
y += FONT_SIZE + IMG_MARGIN
DrawBlock(draw, y, block, pixelsPerByte)
y += MAP_SIZE + IMG_MARGIN
index = 0
for dedicatedAlloc in pool['DedicatedAllocations']:
draw.text((IMG_MARGIN, y), "Custom pool %s dedicated allocation %d" % (poolName, index), fill=COLOR_TEXT_H2, font=font)
y += FONT_SIZE + IMG_MARGIN
DrawDedicatedAllocationBlock(draw, y, dedicatedAlloc, pixelsPerByte)
y += MAP_SIZE + IMG_MARGIN
index += 1
del draw
img.save(args.output)
"""
Main data structure - variable `data` - is a dictionary. Key is string - memory type name. Value is dictionary of:
- Fixed key 'DedicatedAllocations'. Value is list of objects, each containing dictionary with:
- Fixed key 'Type'. Value is string.
- Fixed key 'Size'. Value is int.
- Fixed key 'Usage'. Value is int.
- Fixed key 'Blocks'. Value is list of objects, each containing dictionary with:
- Fixed key 'ID'. Value is int.
- Fixed key 'Size'. Value is int.
- Fixed key 'Suballocations'. Value is list of objects as above.
- Fixed key 'CustomPools'. Value is dictionary.
- Key is string with pool ID/name. Value is a dictionary with:
- Fixed key 'DedicatedAllocations'. Value is list of objects as above.
- Fixed key 'Blocks'. Value is a list of objects representing memory blocks as above.
"""