diff options
author | Nick Brassel <[email protected]> | 2022-04-13 18:00:18 +1000 |
---|---|---|
committer | GitHub <[email protected]> | 2022-04-13 18:00:18 +1000 |
commit | 1f2b1dedccdf21b629c45ece80b4ca32f6653296 (patch) | |
tree | a4283b928fe11c6662be10067314531f12774152 /quantum/painter/qp_draw.h | |
parent | 1dbbd2b6b068b9f921ebc0341c890df16a491007 (diff) | |
download | qmk_firmware-1f2b1dedccdf21b629c45ece80b4ca32f6653296.tar.gz qmk_firmware-1f2b1dedccdf21b629c45ece80b4ca32f6653296.zip |
Quantum Painter (#10174)
* Install dependencies before executing unit tests.
* Split out UTF-8 decoder.
* Fixup python formatting rules.
* Add documentation for QGF/QFF and the RLE format used.
* Add CLI commands for converting images and fonts.
* Add stub rules.mk for QP.
* Add stream type.
* Add base driver and comms interfaces.
* Add support for SPI, SPI+D/C comms drivers.
* Include <qp.h> when enabled.
* Add base support for SPI+D/C+RST panels, as well as concrete implementation of ST7789.
* Add support for GC9A01.
* Add support for ILI9341.
* Add support for ILI9163.
* Add support for SSD1351.
* Implement qp_setpixel, including pixdata buffer management.
* Implement qp_line.
* Implement qp_rect.
* Implement qp_circle.
* Implement qp_ellipse.
* Implement palette interpolation.
* Allow for streams to work with either flash or RAM.
* Image loading.
* Font loading.
* QGF palette loading.
* Progressive decoder of pixel data supporting Raw+RLE, 1-,2-,4-,8-bpp monochrome and palette-based images.
* Image drawing.
* Animations.
* Font rendering.
* Check against 256 colours, dump out the loaded palette if debugging enabled.
* Fix build.
* AVR is not the intended audience.
* `qmk format-c`
* Generation fix.
* First batch of docs.
* More docs and examples.
* Review comments.
* Public API documentation.
Diffstat (limited to 'quantum/painter/qp_draw.h')
-rw-r--r-- | quantum/painter/qp_draw.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/quantum/painter/qp_draw.h b/quantum/painter/qp_draw.h new file mode 100644 index 0000000000..7094d80eaa --- /dev/null +++ b/quantum/painter/qp_draw.h @@ -0,0 +1,85 @@ +// Copyright 2021 Nick Brassel (@tzarc) +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include "qp_internal.h" +#include "qp_stream.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter utility functions + +// Global variable used for native pixel data streaming. +extern uint8_t qp_internal_global_pixdata_buffer[QUANTUM_PAINTER_PIXDATA_BUFFER_SIZE]; + +// Check if the supplied bpp is capable of being rendered +bool qp_internal_bpp_capable(uint8_t bits_per_pixel); + +// Returns the number of pixels that can fit in the pixdata buffer +uint32_t qp_internal_num_pixels_in_buffer(painter_device_t device); + +// Fills the supplied buffer with equivalent native pixels matching the supplied HSV +void qp_internal_fill_pixdata(painter_device_t device, uint32_t num_pixels, uint8_t hue, uint8_t sat, uint8_t val); + +// qp_setpixel internal implementation, but uses the global pixdata buffer with pre-converted native pixel. Only the first pixel is used. +bool qp_internal_setpixel_impl(painter_device_t device, uint16_t x, uint16_t y); + +// qp_rect internal implementation, but uses the global pixdata buffer with pre-converted native pixels. +bool qp_internal_fillrect_helper_impl(painter_device_t device, uint16_t l, uint16_t t, uint16_t r, uint16_t b); + +// Convert from input pixel data + palette to equivalent pixels +typedef int16_t (*qp_internal_byte_input_callback)(void* cb_arg); +typedef bool (*qp_internal_pixel_output_callback)(qp_pixel_t* palette, uint8_t index, void* cb_arg); +bool qp_internal_decode_palette(painter_device_t device, uint32_t pixel_count, uint8_t bits_per_pixel, qp_internal_byte_input_callback input_callback, void* input_arg, qp_pixel_t* palette, qp_internal_pixel_output_callback output_callback, void* output_arg); +bool qp_internal_decode_grayscale(painter_device_t device, uint32_t pixel_count, uint8_t bits_per_pixel, qp_internal_byte_input_callback input_callback, void* input_arg, qp_internal_pixel_output_callback output_callback, void* output_arg); +bool qp_internal_decode_recolor(painter_device_t device, uint32_t pixel_count, uint8_t bits_per_pixel, qp_internal_byte_input_callback input_callback, void* input_arg, qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888, qp_internal_pixel_output_callback output_callback, void* output_arg); + +// Global variable used for interpolated pixel lookup table. +#if QUANTUM_PAINTER_SUPPORTS_256_PALETTE +extern qp_pixel_t qp_internal_global_pixel_lookup_table[256]; +#else +extern qp_pixel_t qp_internal_global_pixel_lookup_table[16]; +#endif + +// Generates a color-interpolated lookup table based off the number of items, from foreground to background, for use with monochrome image rendering. +// Returns true if a palette was created, false if the palette is reused. +// As this uses a global, this may present a problem if using the same parameters but a different screen converts pixels -- use qp_internal_invalidate_palette() below to reset. +bool qp_internal_interpolate_palette(qp_pixel_t fg_hsv888, qp_pixel_t bg_hsv888, int16_t steps); + +// Resets the global palette so that it can be regenerated. Only needed if the colors are identical, but a different display is used with a different internal pixel format. +void qp_internal_invalidate_palette(void); + +// Helper shared between image and font rendering -- sets up the global palette to match the palette block specified in the asset. Expects the stream to be positioned at the start of the block header. +bool qp_internal_load_qgf_palette(qp_stream_t* stream, uint8_t bpp); + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// Quantum Painter codec functions + +enum qp_internal_rle_mode_t { + MARKER_BYTE, + REPEATING_RUN, + NON_REPEATING_RUN, +}; + +struct qp_internal_byte_input_state { + painter_device_t device; + qp_stream_t* src_stream; + int16_t curr; + union { + // RLE-specific + struct { + enum qp_internal_rle_mode_t mode; + uint8_t remain; // number of bytes remaining in the current mode + } rle; + }; +}; + +struct qp_internal_pixel_output_state { + painter_device_t device; + uint32_t pixel_write_pos; + uint32_t max_pixels; +}; + +bool qp_internal_pixel_appender(qp_pixel_t* palette, uint8_t index, void* cb_arg); + +qp_internal_byte_input_callback qp_internal_prepare_input_state(struct qp_internal_byte_input_state* input_state, painter_compression_t compression); |