opensteno_qmk/quantum/painter/qp_internal_driver.h
Nick Brassel 1f2b1dedcc
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.
2022-04-13 18:00:18 +10:00

82 lines
3.7 KiB
C

// Copyright 2021 Nick Brassel (@tzarc)
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include "qp_internal.h"
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Driver callbacks
typedef bool (*painter_driver_init_func)(painter_device_t device, painter_rotation_t rotation);
typedef bool (*painter_driver_power_func)(painter_device_t device, bool power_on);
typedef bool (*painter_driver_clear_func)(painter_device_t device);
typedef bool (*painter_driver_flush_func)(painter_device_t device);
typedef bool (*painter_driver_viewport_func)(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom);
typedef bool (*painter_driver_pixdata_func)(painter_device_t device, const void *pixel_data, uint32_t native_pixel_count);
typedef bool (*painter_driver_convert_palette_func)(painter_device_t device, int16_t palette_size, qp_pixel_t *palette);
typedef bool (*painter_driver_append_pixels)(painter_device_t device, uint8_t *target_buffer, qp_pixel_t *palette, uint32_t pixel_offset, uint32_t pixel_count, uint8_t *palette_indices);
// Driver vtable definition
struct painter_driver_vtable_t {
painter_driver_init_func init;
painter_driver_power_func power;
painter_driver_clear_func clear;
painter_driver_flush_func flush;
painter_driver_viewport_func viewport;
painter_driver_pixdata_func pixdata;
painter_driver_convert_palette_func palette_convert;
painter_driver_append_pixels append_pixels;
};
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Comms callbacks
typedef bool (*painter_driver_comms_init_func)(painter_device_t device);
typedef bool (*painter_driver_comms_start_func)(painter_device_t device);
typedef void (*painter_driver_comms_stop_func)(painter_device_t device);
typedef uint32_t (*painter_driver_comms_send_func)(painter_device_t device, const void *data, uint32_t byte_count);
struct painter_comms_vtable_t {
painter_driver_comms_init_func comms_init;
painter_driver_comms_start_func comms_start;
painter_driver_comms_stop_func comms_stop;
painter_driver_comms_send_func comms_send;
};
typedef void (*painter_driver_comms_send_command_func)(painter_device_t device, uint8_t cmd);
typedef void (*painter_driver_comms_bulk_command_sequence)(painter_device_t device, const uint8_t *sequence, size_t sequence_len);
struct painter_comms_with_command_vtable_t {
struct painter_comms_vtable_t base; // must be first, so this object can be cast from the painter_comms_vtable_t* type
painter_driver_comms_send_command_func send_command;
painter_driver_comms_bulk_command_sequence bulk_command_sequence;
};
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Driver base definition
struct painter_driver_t {
const struct painter_driver_vtable_t *driver_vtable;
const struct painter_comms_vtable_t * comms_vtable;
// Flag signifying if validation was successful
bool validate_ok;
// Panel geometry
uint16_t panel_width;
uint16_t panel_height;
// Target drawing rotation
painter_rotation_t rotation;
// Automated offsets for setting viewport
uint16_t offset_x;
uint16_t offset_y;
// Number of bits per pixel, used for determining how many pixels can be sent during a transmission of the pixdata buffer
uint8_t native_bits_per_pixel;
// Comms config pointer -- needs to point to an appropriate comms config if the comms driver requires it.
void *comms_config;
};