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@ -1,9 +1,11 @@ |
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# Copyright 2021 Nick Brassel (@tzarc) |
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# Copyright 2023 Pablo Martinez (@elpekenin) <elpekenin@elpekenin.dev> |
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# SPDX-License-Identifier: GPL-2.0-or-later |
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# Quantum Graphics File "QGF" Image File Format. |
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# See https://docs.qmk.fm/#/quantum_painter_qgf for more information. |
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import functools |
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from colorsys import rgb_to_hsv |
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from types import FunctionType |
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from PIL import Image, ImageFile, ImageChops |
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@ -15,6 +17,12 @@ def o24(i): |
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return o16(i & 0xFFFF) + o8((i & 0xFF0000) >> 16) |
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# Helper to convert from RGB888 to the QMK "dialect" of HSV888 |
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def rgb888_to_qmk_hsv888(e): |
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hsv = rgb_to_hsv(e[0] / 255.0, e[1] / 255.0, e[2] / 255.0) |
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return (int(hsv[0] * 255.0), int(hsv[1] * 255.0), int(hsv[2] * 255.0)) |
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######################################################################################################################## |
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@ -60,6 +68,14 @@ class QGFGraphicsDescriptor: |
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+ o16(self.frame_count) # frame count |
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) |
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@property |
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def image_size(self): |
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return self.image_width, self.image_height |
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@image_size.setter |
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def image_size(self, size): |
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self.image_width, self.image_height = size |
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######################################################################################################################## |
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@ -180,6 +196,14 @@ class QGFFrameDeltaDescriptorV1: |
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+ o16(self.bottom) # bottom |
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) |
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@property |
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def bbox(self): |
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return self.left, self.top, self.right, self.bottom |
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@bbox.setter |
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def bbox(self, bbox): |
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self.left, self.top, self.right, self.bottom = bbox |
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######################################################################################################################## |
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@ -221,42 +245,159 @@ def _accept(prefix): |
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return False |
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def _save(im, fp, filename): |
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def _for_all_frames(x: FunctionType, /, images): |
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frame_num = 0 |
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last_frame = None |
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for frame in images: |
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# Get number of of frames in this image |
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nfr = getattr(frame, "n_frames", 1) |
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for idx in range(nfr): |
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frame.seek(idx) |
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frame.load() |
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copy = frame.copy().convert("RGB") |
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x(frame_num, copy, last_frame) |
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last_frame = copy |
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frame_num += 1 |
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def _compress_image(frame, last_frame, *, use_rle, use_deltas, format_, **_kwargs): |
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# Convert the original frame so we can do comparisons |
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converted = qmk.painter.convert_requested_format(frame, format_) |
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graphic_data = qmk.painter.convert_image_bytes(converted, format_) |
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# Convert the raw data to RLE-encoded if requested |
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raw_data = graphic_data[1] |
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if use_rle: |
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rle_data = qmk.painter.compress_bytes_qmk_rle(graphic_data[1]) |
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use_raw_this_frame = not use_rle or len(raw_data) <= len(rle_data) |
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image_data = raw_data if use_raw_this_frame else rle_data |
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# Work out if a delta frame is smaller than injecting it directly |
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use_delta_this_frame = False |
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bbox = None |
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if use_deltas and last_frame is not None: |
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# If we want to use deltas, then find the difference |
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diff = ImageChops.difference(frame, last_frame) |
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# Get the bounding box of those differences |
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bbox = diff.getbbox() |
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# If we have a valid bounding box... |
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if bbox: |
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# ...create the delta frame by cropping the original. |
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delta_frame = frame.crop(bbox) |
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# Convert the delta frame to the requested format |
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delta_converted = qmk.painter.convert_requested_format(delta_frame, format_) |
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delta_graphic_data = qmk.painter.convert_image_bytes(delta_converted, format_) |
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# Work out how large the delta frame is going to be with compression etc. |
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delta_raw_data = delta_graphic_data[1] |
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if use_rle: |
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delta_rle_data = qmk.painter.compress_bytes_qmk_rle(delta_graphic_data[1]) |
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delta_use_raw_this_frame = not use_rle or len(delta_raw_data) <= len(delta_rle_data) |
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delta_image_data = delta_raw_data if delta_use_raw_this_frame else delta_rle_data |
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# If the size of the delta frame (plus delta descriptor) is smaller than the original, use that instead |
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# This ensures that if a non-delta is overall smaller in size, we use that in preference due to flash |
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# sizing constraints. |
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if (len(delta_image_data) + QGFFrameDeltaDescriptorV1.length) < len(image_data): |
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# Copy across all the delta equivalents so that the rest of the processing acts on those |
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graphic_data = delta_graphic_data |
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raw_data = delta_raw_data |
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rle_data = delta_rle_data |
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use_raw_this_frame = delta_use_raw_this_frame |
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image_data = delta_image_data |
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use_delta_this_frame = True |
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# Default to whole image |
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bbox = bbox or [0, 0, *frame.size] |
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# Fix sze (as per #20296), we need to cast first as tuples are inmutable |
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bbox = list(bbox) |
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bbox[2] -= 1 |
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bbox[3] -= 1 |
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return { |
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"bbox": bbox, |
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"graphic_data": graphic_data, |
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"image_data": image_data, |
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"use_delta_this_frame": use_delta_this_frame, |
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"use_raw_this_frame": use_raw_this_frame, |
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} |
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# Helper function to save each frame to the output file |
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def _write_frame(idx, frame, last_frame, *, fp, frame_offsets, **kwargs): |
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# Not an argument of the function as it would consume from **kwargs |
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format_ = kwargs["format_"] |
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# (potentially) Apply RLE and/or delta, and work out output image's information |
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outputs = _compress_image(frame, last_frame, **kwargs) |
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bbox = outputs["bbox"] |
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graphic_data = outputs["graphic_data"] |
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image_data = outputs["image_data"] |
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use_delta_this_frame = outputs["use_delta_this_frame"] |
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use_raw_this_frame = outputs["use_raw_this_frame"] |
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# Write out the frame descriptor |
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frame_offsets.frame_offsets[idx] = fp.tell() |
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vprint(f'{f"Frame {idx:3d} base":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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frame_descriptor = QGFFrameDescriptorV1() |
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frame_descriptor.is_delta = use_delta_this_frame |
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frame_descriptor.is_transparent = False |
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frame_descriptor.format = format_['image_format_byte'] |
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frame_descriptor.compression = 0x00 if use_raw_this_frame else 0x01 # See qp.h, painter_compression_t |
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frame_descriptor.delay = frame.info.get('duration', 1000) # If we're not an animation, just pretend we're delaying for 1000ms |
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frame_descriptor.write(fp) |
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# Write out the palette if required |
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if format_['has_palette']: |
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palette = graphic_data[0] |
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palette_descriptor = QGFFramePaletteDescriptorV1() |
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# Convert all palette entries to HSV888 and write to the output |
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palette_descriptor.palette_entries = list(map(rgb888_to_qmk_hsv888, palette)) |
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vprint(f'{f"Frame {idx:3d} palette":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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palette_descriptor.write(fp) |
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# Write out the delta info if required |
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if use_delta_this_frame: |
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# Set up the rendering location of where the delta frame should be situated |
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delta_descriptor = QGFFrameDeltaDescriptorV1() |
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delta_descriptor.bbox = bbox |
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# Write the delta frame to the output |
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vprint(f'{f"Frame {idx:3d} delta":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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delta_descriptor.write(fp) |
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# Write out the data for this frame to the output |
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data_descriptor = QGFFrameDataDescriptorV1() |
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data_descriptor.data = image_data |
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vprint(f'{f"Frame {idx:3d} data":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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data_descriptor.write(fp) |
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def _save(im, fp, _filename): |
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"""Helper method used by PIL to write to an output file. |
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""" |
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# Work out from the parameters if we need to do anything special |
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encoderinfo = im.encoderinfo.copy() |
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append_images = list(encoderinfo.get("append_images", [])) |
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verbose = encoderinfo.get("verbose", False) |
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use_deltas = encoderinfo.get("use_deltas", True) |
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use_rle = encoderinfo.get("use_rle", True) |
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# Helper for inline verbose prints |
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def vprint(s): |
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if verbose: |
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print(s) |
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# Helper for prints, noop taking any args if not verbose |
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global vprint |
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verbose = encoderinfo.get("verbose", False) |
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vprint = print if verbose else lambda *_args, **_kwargs: None |
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# Helper to iterate through all frames in the input image |
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def _for_all_frames(x: FunctionType): |
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frame_num = 0 |
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last_frame = None |
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for frame in [im] + append_images: |
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# Get number of of frames in this image |
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nfr = getattr(frame, "n_frames", 1) |
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for idx in range(nfr): |
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frame.seek(idx) |
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frame.load() |
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copy = frame.copy().convert("RGB") |
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x(frame_num, copy, last_frame) |
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last_frame = copy |
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frame_num += 1 |
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append_images = list(encoderinfo.get("append_images", [])) |
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for_all_frames = functools.partial(_for_all_frames, images=[im, *append_images]) |
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# Collect all the frame sizes |
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frame_sizes = [] |
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_for_all_frames(lambda idx, frame, last_frame: frame_sizes.append(frame.size)) |
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for_all_frames(lambda _idx, frame, _last_frame: frame_sizes.append(frame.size)) |
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# Make sure all frames are the same size |
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if len(list(set(frame_sizes))) != 1: |
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if len(set(frame_sizes)) != 1: |
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raise ValueError("Mismatching sizes on frames") |
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# Write out the initial graphics descriptor (and write a dummy value), so that we can come back and fill in the |
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@ -264,8 +405,7 @@ def _save(im, fp, filename): |
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graphics_descriptor_location = fp.tell() |
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graphics_descriptor = QGFGraphicsDescriptor() |
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graphics_descriptor.frame_count = len(frame_sizes) |
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graphics_descriptor.image_width = frame_sizes[0][0] |
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graphics_descriptor.image_height = frame_sizes[0][1] |
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graphics_descriptor.image_size = frame_sizes[0] |
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vprint(f'{"Graphics descriptor block":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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graphics_descriptor.write(fp) |
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@ -276,117 +416,9 @@ def _save(im, fp, filename): |
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vprint(f'{"Frame offsets block":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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frame_offsets.write(fp) |
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# Helper function to save each frame to the output file |
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def _write_frame(idx, frame, last_frame): |
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# If we replace the frame we're going to output with a delta, we can override it here |
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this_frame = frame |
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location = (0, 0) |
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size = frame.size |
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# Work out the format we're going to use |
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format = encoderinfo["qmk_format"] |
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# Convert the original frame so we can do comparisons |
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converted = qmk.painter.convert_requested_format(this_frame, format) |
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graphic_data = qmk.painter.convert_image_bytes(converted, format) |
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# Convert the raw data to RLE-encoded if requested |
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raw_data = graphic_data[1] |
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if use_rle: |
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rle_data = qmk.painter.compress_bytes_qmk_rle(graphic_data[1]) |
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use_raw_this_frame = not use_rle or len(raw_data) <= len(rle_data) |
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image_data = raw_data if use_raw_this_frame else rle_data |
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# Work out if a delta frame is smaller than injecting it directly |
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use_delta_this_frame = False |
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if use_deltas and last_frame is not None: |
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# If we want to use deltas, then find the difference |
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diff = ImageChops.difference(frame, last_frame) |
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# Get the bounding box of those differences |
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bbox = diff.getbbox() |
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# If we have a valid bounding box... |
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if bbox: |
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# ...create the delta frame by cropping the original. |
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delta_frame = frame.crop(bbox) |
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delta_location = (bbox[0], bbox[1]) |
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delta_size = (bbox[2] - bbox[0], bbox[3] - bbox[1]) |
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# Convert the delta frame to the requested format |
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delta_converted = qmk.painter.convert_requested_format(delta_frame, format) |
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delta_graphic_data = qmk.painter.convert_image_bytes(delta_converted, format) |
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# Work out how large the delta frame is going to be with compression etc. |
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delta_raw_data = delta_graphic_data[1] |
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if use_rle: |
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delta_rle_data = qmk.painter.compress_bytes_qmk_rle(delta_graphic_data[1]) |
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delta_use_raw_this_frame = not use_rle or len(delta_raw_data) <= len(delta_rle_data) |
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delta_image_data = delta_raw_data if delta_use_raw_this_frame else delta_rle_data |
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# If the size of the delta frame (plus delta descriptor) is smaller than the original, use that instead |
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# This ensures that if a non-delta is overall smaller in size, we use that in preference due to flash |
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# sizing constraints. |
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if (len(delta_image_data) + QGFFrameDeltaDescriptorV1.length) < len(image_data): |
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# Copy across all the delta equivalents so that the rest of the processing acts on those |
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this_frame = delta_frame |
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location = delta_location |
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size = delta_size |
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converted = delta_converted |
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graphic_data = delta_graphic_data |
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raw_data = delta_raw_data |
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rle_data = delta_rle_data |
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use_raw_this_frame = delta_use_raw_this_frame |
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image_data = delta_image_data |
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use_delta_this_frame = True |
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# Write out the frame descriptor |
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frame_offsets.frame_offsets[idx] = fp.tell() |
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vprint(f'{f"Frame {idx:3d} base":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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frame_descriptor = QGFFrameDescriptorV1() |
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frame_descriptor.is_delta = use_delta_this_frame |
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frame_descriptor.is_transparent = False |
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frame_descriptor.format = format['image_format_byte'] |
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frame_descriptor.compression = 0x00 if use_raw_this_frame else 0x01 # See qp.h, painter_compression_t |
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frame_descriptor.delay = frame.info['duration'] if 'duration' in frame.info else 1000 # If we're not an animation, just pretend we're delaying for 1000ms |
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frame_descriptor.write(fp) |
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# Write out the palette if required |
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if format['has_palette']: |
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palette = graphic_data[0] |
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palette_descriptor = QGFFramePaletteDescriptorV1() |
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# Helper to convert from RGB888 to the QMK "dialect" of HSV888 |
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def rgb888_to_qmk_hsv888(e): |
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hsv = rgb_to_hsv(e[0] / 255.0, e[1] / 255.0, e[2] / 255.0) |
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return (int(hsv[0] * 255.0), int(hsv[1] * 255.0), int(hsv[2] * 255.0)) |
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# Convert all palette entries to HSV888 and write to the output |
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palette_descriptor.palette_entries = list(map(rgb888_to_qmk_hsv888, palette)) |
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vprint(f'{f"Frame {idx:3d} palette":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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palette_descriptor.write(fp) |
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# Write out the delta info if required |
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if use_delta_this_frame: |
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# Set up the rendering location of where the delta frame should be situated |
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delta_descriptor = QGFFrameDeltaDescriptorV1() |
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delta_descriptor.left = location[0] |
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delta_descriptor.top = location[1] |
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delta_descriptor.right = location[0] + size[0] - 1 |
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delta_descriptor.bottom = location[1] + size[1] - 1 |
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# Write the delta frame to the output |
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vprint(f'{f"Frame {idx:3d} delta":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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delta_descriptor.write(fp) |
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# Write out the data for this frame to the output |
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data_descriptor = QGFFrameDataDescriptorV1() |
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data_descriptor.data = image_data |
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vprint(f'{f"Frame {idx:3d} data":26s} {fp.tell():5d}d / {fp.tell():04X}h') |
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data_descriptor.write(fp) |
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# Iterate over each if the input frames, writing it to the output in the process |
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_for_all_frames(_write_frame) |
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write_frame = functools.partial(_write_frame, format_=encoderinfo["qmk_format"], fp=fp, use_deltas=encoderinfo.get("use_deltas", True), use_rle=encoderinfo.get("use_rle", True), frame_offsets=frame_offsets) |
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for_all_frames(write_frame) |
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# Go back and update the graphics descriptor now that we can determine the final file size |
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graphics_descriptor.total_file_size = fp.tell() |
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Pablo Martínez
2 months ago
GitHub