def create_imagefont(res_path, font_filename, point_size, text, color):
done = False
curr_size = 64
texture_packer = None
image_dict = None
packResult = None
# Retry until optimal font atlas size is found.
while not done:
try:
result = pack_fonts(font_filename, point_size, text, color, curr_size)
texture_packer = result[0]
packResult = result[1]
image_dict = result[2]
done = True
except PackerError:
curr_size = next_power_of_two(curr_size)
print "Failed, trying next power of two", curr_size
borderSize = 1
font_image_name = os.path.join(
get_fonts_path(res_path), "%s_%s.%s" % (os.path.basename(font_filename).split(".")[0], str(point_size), "tga")
)
atlas_data = AtlasData(
name=font_image_name,
width=packResult[0],
height=packResult[1],
color_mode="RGBA",
file_type="tga",
border=borderSize,
)
for tex in texture_packer.texArr:
atlas_data.add_texture(tex)
parser = get_parser("xml")
parser.parse(atlas_data)
parser.save("%s.%s" % (font_image_name.split(".")[0], parser.get_file_ext()))
atlas_image = Image.new("RGBA", (packResult[0], packResult[1]), color)
index = 0
for name in image_dict.keys():
tex = texture_packer.get_texture(name)
atlas_image.paste(image_dict[name], (tex.x, tex.y))
index += 1
atlas_image.save(os.path.join(get_fonts_path(res_path), font_image_name), "tga")
def create_atlas(texMode, dirPath, atlasPath, dirName, args):
done = False
curr_size = int(args['maxrects_bin_size'])
texture_packer = None
imagesList = None
packResult = None
# Retry until optimal font atlas size is found.
while not done:
try:
result = pack_atlas(args, dirPath, curr_size)
texture_packer = result[0]
packResult = result[1]
imagesList = result[2]
done = True
except PackerError:
curr_size = next_power_of_two(curr_size)
print "Failed, trying next power of two", curr_size
borderSize = 1
atlas_name = '%s.%s' % (dirName, args['atlas_type'])
atlas_data = AtlasData(name=dirName, width=packResult[0], height=packResult[1], color_mode=texMode, file_type=args['atlas_type'], border=borderSize)
for tex in texture_packer.texArr:
atlas_data.add_texture(tex)
parser = get_parser(args['output_data_type'])
parser.parse(atlas_data)
parser.save('%s.%s' % (os.path.join(atlasPath, os.path.basename(dirPath)), parser.get_file_ext()))
atlas_image = Image.new(texMode, (packResult[0], packResult[1]), get_color(args['bg_color']))
index = 0
for image in imagesList:
tex = texture_packer.get_texture(image[0])
atlas_image.paste(image[1], (tex.x, tex.y))
index += 1
atlas_image.save(os.path.join(atlasPath, os.path.basename(dirPath)) + "." + args['atlas_type'], args['atlas_type'])
if (args['verbose']):
atlas_image.show()
def pack_textures(self, forcePowerOfTwo, onePixelBorder):
# 0 = width
# 1 = height
# 3 = returnValue
returnList = []
if (onePixelBorder):
i = 0
for t in self.texArr:
t.width += 2
t.height += 2
self.texArr[i] = t
i += 1
self.longestEdge += 2
if (forcePowerOfTwo):
self.longestEdge = next_power_of_two(self.longestEdge)
width = self.longestEdge
count = self.totalArea / (self.longestEdge * self.longestEdge)
height = (count + 2) * self.longestEdge
self.add_node(0, 0, width, height)
# We must place_texture each texture
loopI = 0
while (loopI < self.get_texture_count()):
index = 0
longestEdge = 0
mostArea = 0
# We first search for the texture with the longest edge, placing it first.
# And the most area...
j = 0
for texture in self.texArr:
#print "Checking texture ", tmpTex.GetName()
if (not texture.placed):
if (texture.longestEdge > longestEdge):
mostArea = texture.area
longestEdge = texture.longestEdge
index = j
elif (texture.longestEdge == longestEdge):
if (texture.area > mostArea):
mostArea = texture.area
index = j
j += 1
# For the texture with the longest edge we place_texture it according to this criteria.
# (1) If it is a perfect match, we always accept it as it causes the least amount of fragmentation.
# (2) A match of one edge with the minimum area left over after the split.
# (3) No edges match, so look for the node which leaves the least amount of area left over after the split.
tex = self.texArr[index]
#print "Going to try and place_texture ", tex.GetName()
leastY = 0x7FFFFFFF
leastX = 0x7FFFFFFF
nodeIndex = 0
idx = 0
previousBestFitNodeIdx = 0
bestFitNode = Node(0, 0, 0, 0)
previousNodeIdx = 0
edgeCount = 0
# Walk the singly linked list of free nodes
# see if it will fit into any currently free space
for currNode in self.freeArr:
resultdoes_rect_fitArr = currNode.does_rect_fit(tex.get_rect().get_width(), tex.get_rect().get_height())
ec = resultdoes_rect_fitArr[1]
# see if the texture will fit into this slot, and if so how many edges does it share.
if (resultdoes_rect_fitArr[0] is True):
if (ec == 2):
previousBestFitNodeIdx = previousNodeIdx
bestFitNode = currNode
nodeIndex = idx
edgeCount = ec
break
if (currNode.y < leastY):
leastY = currNode.y
leastX = currNode.x
previousBestFitNodeIdx = previousNodeIdx
bestFitNode = currNode
nodeIndex = idx
edgeCount = ec
elif (currNode.y == leastY and currNode.x < leastX):
leastX = currNode.x
previousBestFitNodeIdx = previousNodeIdx
bestFitNode = currNode
nodeIndex = idx
edgeCount = ec
previousNodeIdx = idx
idx += 1
# we should always find a fit location!
if(bestFitNode.x == 0 and bestFitNode.y == 0 and bestFitNode.get_rect().get_width() == 0 and bestFitNode.get_rect().get_height() == 0):
print "TexturePacker::pack_textures() BestFit node not found!!"
exit(1)
self.validate()
if (edgeCount == 0):
if (tex.longestEdge <= bestFitNode.get_rect().get_width()):
if (tex.height > tex.width):
tex.flip_dimensions()
tex.flipped = True
tex.place_texture(bestFitNode.x, bestFitNode.y, tex.flipped)
self.add_node(bestFitNode.x, bestFitNode.y + tex.height, bestFitNode.get_rect().get_width(), bestFitNode.get_rect().get_height() - tex.height)
bestFitNode.x += tex.width
bestFitNode.width -= tex.width
bestFitNode.height = tex.height
self.validate()
else:
if (tex.longestEdge <= bestFitNode.height):
print("TexturePacker::PackTexture() ERROR - Current textures longest edge is less than the BestFitNodes Height!!!")
exit(1)
if (tex.height < tex.width):
tex.flip_dimensions()
tex.flipped = True
tex.place_texture(bestFitNode.x, bestFitNode.y, tex.flipped)
self.add_node(bestFitNode.x, bestFitNode.y + tex.height, bestFitNode.get_rect().width, bestFitNode.get_rect().height - tex.height)
bestFitNode.x += tex.width
bestFitNode.width -= tex.width
bestFitNode.height = tex.height
self.validate()
elif(edgeCount == 1):
if (tex.width == bestFitNode.get_rect().get_width()):
tex.place_texture(bestFitNode.x, bestFitNode.y, False)
bestFitNode.y += tex.height
bestFitNode.height -= tex.height
self.validate()
elif (tex.height == bestFitNode.get_rect().get_height()):
tex.place_texture(bestFitNode.x, bestFitNode.y, False)
bestFitNode.x += tex.width
bestFitNode.width -= tex.width
self.validate()
elif (tex.width == bestFitNode.get_rect().get_height()):
tex.place_texture(bestFitNode.x, bestFitNode.y, True)
bestFitNode.x += tex.height
bestFitNode.width -= tex.height
self.validate()
elif (tex.height == bestFitNode.get_rect().get_width()):
tex.place_texture(bestFitNode.x, bestFitNode.y, True)
bestFitNode.y += tex.width
bestFitNode.height -= tex.width
self.validate()
elif(edgeCount == 2):
flipped = tex.width != bestFitNode.get_rect().get_width() or tex.height != bestFitNode.get_rect().get_height()
tex.place_texture(bestFitNode.x, bestFitNode.y, flipped)
if (previousBestFitNodeIdx >= 0):
previousBestFitNodeIdx = index
self.validate()
# Save latest version of texture and Node back into lists since python is pass by value
self.freeArr[nodeIndex] = bestFitNode
self.texArr[index] = tex
loopI += 1
while (self.merge_nodes()):
print "Merging nodes"
index = 0
height = 0
for t in self.texArr:
if (onePixelBorder):
t.width -= 2
t.height -= 2
t.x += 1
t.y += 1
self.texArr[index] = t
y = 0
if (t.flipped):
y = t.y + t.width
else:
y = t.y + t.height
if (y > height):
height = y
index += 1
if (forcePowerOfTwo):
height = next_power_of_two(height)
returnList.append(width)
returnList.append(height)
returnList.append((width * height) - self.totalArea)
return (returnList)
