"""
+import struct
from typing import Union, Optional, Tuple
-from PIL import Image
from ._bitmap import Bitmap
from ._colorconverter import ColorConverter
from ._ondiskbitmap import OnDiskBitmap
from ._shape import Shape
from ._palette import Palette
-from ._structs import RectangleStruct, TransformStruct
+from ._structs import TransformStruct, InputPixelStruct, OutputPixelStruct
+from ._colorspace import Colorspace
+from ._area import Area
__version__ = "0.0.0+auto.0"
__repo__ = "https://github.com/adafruit/Adafruit_Blinka_displayio.git"
self._hidden_tilegrid = False
self._x = x
self._y = y
- self._width = width # Number of Tiles Wide
- self._height = height # Number of Tiles High
+ self._width_in_tiles = width
+ self._height_in_tiles = height
self._transpose_xy = False
self._flip_x = False
self._flip_y = False
raise ValueError("Default Tile is out of range")
self._pixel_width = width * tile_width
self._pixel_height = height * tile_height
- self._tiles = (self._width * self._height) * [default_tile]
+ self._tiles = (self._width_in_tiles * self._height_in_tiles) * [default_tile]
self._in_group = False
self._absolute_transform = TransformStruct(0, 0, 1, 1, 1, False, False, False)
- self._current_area = RectangleStruct(
- 0, 0, self._pixel_width, self._pixel_height
- )
+ self._current_area = Area(0, 0, self._pixel_width, self._pixel_height)
self._moved = False
+ self._bitmap_width_in_tiles = bitmap_width // tile_width
+ self._tiles_in_bitmap = self._bitmap_width_in_tiles * (
+ bitmap_height // tile_height
+ )
+ self.inline_tiles = False # We have plenty of memory
def _update_transform(self, absolute_transform):
"""Update the parent transform and child transforms"""
)
image.putalpha(alpha.convert("L"))
- def _fill_area(self, buffer):
- # pylint: disable=too-many-locals,too-many-branches,too-many-statements
+ def _fill_area(
+ self, colorspace: Colorspace, area: Area, mask: bytearray, buffer: bytearray
+ ) -> bool:
"""Draw onto the image"""
- if self._hidden_tilegrid:
- return
+ # pylint: disable=too-many-locals,too-many-branches,too-many-statements
- if self._bitmap.width <= 0 or self._bitmap.height <= 0:
- return
-
- # Copy class variables to local variables in case something changes
- x = self._x
- y = self._y
- width = self._width
- height = self._height
- tile_width = self._tile_width
- tile_height = self._tile_height
- bitmap_width = self._bitmap.width
- pixel_width = self._pixel_width
- pixel_height = self._pixel_height
- tiles = self._tiles
- absolute_transform = self._absolute_transform
- pixel_shader = self._pixel_shader
- bitmap = self._bitmap
+ # If no tiles are present we have no impact
tiles = self._tiles
- tile_count_x = bitmap_width // tile_width
+ if self._hidden_tilegrid:
+ return False
- image = Image.new(
- "RGBA",
- (width * tile_width, height * tile_height),
- (0, 0, 0, 0),
- )
+ overlap = Area()
+ if not self._current_area.compute_overlap(area, overlap):
+ return False
- for tile_x in range(width):
- for tile_y in range(height):
- tile_index = tiles[tile_y * width + tile_x]
- tile_index_x = tile_index % tile_count_x
- tile_index_y = tile_index // tile_count_x
- tile_image = bitmap._image # pylint: disable=protected-access
- if isinstance(pixel_shader, Palette):
- tile_image = tile_image.copy().convert("P")
- self._apply_palette(tile_image)
- tile_image = tile_image.convert("RGBA")
- self._add_alpha(tile_image)
- elif isinstance(pixel_shader, ColorConverter):
- # This will be needed for eInks, grayscale, and monochrome displays
- pass
- image.alpha_composite(
- tile_image,
- dest=(tile_x * tile_width, tile_y * tile_height),
- source=(
- tile_index_x * tile_width,
- tile_index_y * tile_height,
- tile_index_x * tile_width + tile_width,
- tile_index_y * tile_height + tile_height,
- ),
- )
+ if self._bitmap.width <= 0 or self._bitmap.height <= 0:
+ return False
+
+ x_stride = 1
+ y_stride = area.width()
+
+ flip_x = self._flip_x
+ flip_y = self._flip_y
+ if self._transpose_xy != self._absolute_transform.transpose_xy:
+ flip_x, flip_y = flip_y, flip_x
+
+ start = 0
+ if (self._absolute_transform.dx < 0) != flip_x:
+ start += (area.width() - 1) * x_stride
+ x_stride *= -1
+ if (self._absolute_transform.dy < 0) != flip_y:
+ start += (area.height() - 1) * y_stride
+ y_stride *= -1
+
+ full_coverage = area == overlap
+
+ transformed = Area()
+ area.transform_within(
+ flip_x != (self._absolute_transform.dx < 0),
+ flip_y != (self._absolute_transform.dy < 0),
+ self.transpose_xy != self._absolute_transform.transpose_xy,
+ overlap,
+ self._current_area,
+ transformed,
+ )
- if absolute_transform is not None:
- if absolute_transform.scale > 1:
- image = image.resize(
- (
- int(pixel_width * absolute_transform.scale),
- int(
- pixel_height * absolute_transform.scale,
- ),
- ),
- resample=Image.NEAREST,
- )
- if absolute_transform.mirror_x != self._flip_x:
- image = image.transpose(Image.FLIP_LEFT_RIGHT)
- if absolute_transform.mirror_y != self._flip_y:
- image = image.transpose(Image.FLIP_TOP_BOTTOM)
- if absolute_transform.transpose_xy != self._transpose_xy:
- image = image.transpose(Image.TRANSPOSE)
- x *= absolute_transform.dx
- y *= absolute_transform.dy
- x += absolute_transform.x
- y += absolute_transform.y
-
- source_x = source_y = 0
- if x < 0:
- source_x = round(0 - x)
- x = 0
- if y < 0:
- source_y = round(0 - y)
- y = 0
-
- x = round(x)
- y = round(y)
+ start_x = transformed.x1 - self._current_area.x1
+ end_x = transformed.x2 - self._current_area.x1
+ start_y = transformed.y1 - self._current_area.y1
+ end_y = transformed.y2 - self._current_area.y1
- if (
- x <= buffer.width
- and y <= buffer.height
- and source_x <= image.width
- and source_y <= image.height
- ):
- buffer.alpha_composite(image, (x, y), source=(source_x, source_y))
+ if (self._absolute_transform.dx < 0) != flip_x:
+ x_shift = area.x2 - overlap.x2
+ else:
+ x_shift = overlap.x1 - area.x1
+ if (self._absolute_transform.dy < 0) != flip_y:
+ y_shift = area.y2 - overlap.y2
+ else:
+ y_shift = overlap.y1 - area.y1
+
+ if self._transpose_xy != self._absolute_transform.transpose_xy:
+ x_stride, y_stride = y_stride, x_stride
+ x_shift, y_shift = y_shift, x_shift
+
+ pixels_per_byte = 8 // colorspace.depth
+
+ input_pixel = InputPixelStruct()
+ output_pixel = OutputPixelStruct()
+ for input_pixel.y in range(start_y, end_y):
+ row_start = (
+ start + (input_pixel.y - start_y + y_shift) * y_stride
+ ) # In Pixels
+ local_y = input_pixel.y // self._absolute_transform.scale
+ for input_pixel.x in range(start_x, end_x):
+ offset = (
+ row_start + (input_pixel.x - start_x + x_shift) * x_stride
+ ) # In Pixels
+
+ # Check the mask first to see if the pixel has already been set
+ if mask[offset // 32] & (1 << (offset % 32)):
+ continue
+ local_x = input_pixel.x // self._absolute_transform.scale
+ tile_location = (
+ (local_y // self._tile_height + self._top_left_y)
+ % self._height_in_tiles
+ ) * self._width_in_tiles + (
+ local_x // self._tile_width + self._top_left_x
+ ) % self._width_in_tiles
+ input_pixel.tile = tiles[tile_location]
+ input_pixel.tile_x = (
+ input_pixel.tile % self._bitmap_width_in_tiles
+ ) * self._tile_width + local_x % self._tile_width
+ input_pixel.tile_y = (
+ input_pixel.tile // self._bitmap_width_in_tiles
+ ) * self._tile_height + local_y % self._tile_height
+
+ input_pixel.pixel = self.bitmap[input_pixel.tile_x, input_pixel.tile_y]
+ output_pixel.opaque = True
+
+ if self._pixel_shader is None:
+ output_pixel.pixel = input_pixel.pixel
+ elif isinstance(self._pixel_shader, Palette):
+ self._pixel_shader._get_color( # pylint: disable=protected-access
+ colorspace, input_pixel, output_pixel
+ )
+ elif isinstance(self._pixel_shader, ColorConverter):
+ self._pixel_shader._convert( # pylint: disable=protected-access
+ colorspace, input_pixel, output_pixel
+ )
+
+ if not output_pixel.opaque:
+ full_coverage = False
+ else:
+ mask[offset // 32] |= 1 << (offset % 32)
+ if colorspace.depth == 16:
+ buffer = (
+ buffer[:offset]
+ + struct.pack("H", output_pixel.pixel)
+ + buffer[offset + 2 :]
+ )
+ elif colorspace.depth == 32:
+ buffer = (
+ buffer[:offset]
+ + struct.pack("I", output_pixel.pixel)
+ + buffer[offset + 4 :]
+ )
+ elif colorspace.depth == 8:
+ buffer[offset] = output_pixel.pixel & 0xFF
+ elif colorspace.depth < 8:
+ # Reorder the offsets to pack multiple rows into
+ # a byte (meaning they share a column).
+ if not colorspace.pixels_in_byte_share_row:
+ width = area.width()
+ row = offset // width
+ col = offset % width
+ # Dividing by pixels_per_byte does truncated division
+ # even if we multiply it back out
+ offset = (
+ col * pixels_per_byte
+ + (row // pixels_per_byte) * width
+ + (row % pixels_per_byte)
+ )
+ shift = (offset % pixels_per_byte) * colorspace.depth
+ if colorspace.reverse_pixels_in_byte:
+ # Reverse the shift by subtracting it from the leftmost shift
+ shift = (pixels_per_byte - 1) * colorspace.depth - shift
+ buffer[offset // pixels_per_byte] |= output_pixel.pixel << shift
+ return full_coverage
def _finish_refresh(self):
pass
if isinstance(index, (tuple, list)):
x = index[0]
y = index[1]
- index = y * self._width + x
+ index = y * self._width_in_tiles + x
elif isinstance(index, int):
- x = index % self._width
- y = index // self._width
- if x > self._width or y > self._height or index >= len(self._tiles):
+ x = index % self._width_in_tiles
+ y = index // self._width_in_tiles
+ if (
+ x > self._width_in_tiles
+ or y > self._height_in_tiles
+ or index >= len(self._tiles)
+ ):
raise ValueError("Tile index out of bounds")
return index
@property
def width(self) -> int:
"""Width in tiles"""
- return self._width
+ return self._width_in_tiles
@property
def height(self) -> int:
"""Height in tiles"""
- return self._height
+ return self._height_in_tiles
@property
def tile_width(self) -> int:
projects / hackapet / Adafruit_Blinka_Displayio.git / blobdiff