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// Copyright 2021 Nick Brassel (@tzarc)
// SPDX-License-Identifier: GPL-2.0-or-later
#include "color.h"
#include "qp_internal.h"
#ifdef QUANTUM_PAINTER_SPI_ENABLE
# include "qp_comms_spi.h"
#endif // QUANTUM_PAINTER_SPI_ENABLE
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Common TFT panel implementation using D/C, and RST pins.
typedef uint16_t (*rgb888_to_native_uint16_t)(uint8_t r, uint8_t g, uint8_t b);
// Driver vtable with extras
struct tft_panel_dc_reset_painter_driver_vtable_t {
struct painter_driver_vtable_t base; // must be first, so it can be cast to/from the painter_driver_vtable_t* type
// Conversion function for palette entries
rgb888_to_native_uint16_t rgb888_to_native16bit;
// Number of bytes for transmitting x/y coordinates
uint8_t num_window_bytes;
// Whether or not the x/y coords should be swapped on 90/270 rotation
bool swap_window_coords;
// Opcodes for normal display operation
struct {
uint8_t display_on;
uint8_t display_off;
uint8_t set_column_address;
uint8_t set_row_address;
uint8_t enable_writes;
} opcodes;
};
// Device definition
typedef struct tft_panel_dc_reset_painter_device_t {
struct painter_driver_t base; // must be first, so it can be cast to/from the painter_device_t* type
union {
#ifdef QUANTUM_PAINTER_SPI_ENABLE
// SPI-based configurables
struct qp_comms_spi_dc_reset_config_t spi_dc_reset_config;
#endif // QUANTUM_PAINTER_SPI_ENABLE
// TODO: I2C/parallel etc.
};
} tft_panel_dc_reset_painter_device_t;
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Forward declarations for injecting into concrete driver vtables
bool qp_tft_panel_power(painter_device_t device, bool power_on);
bool qp_tft_panel_clear(painter_device_t device);
bool qp_tft_panel_flush(painter_device_t device);
bool qp_tft_panel_viewport(painter_device_t device, uint16_t left, uint16_t top, uint16_t right, uint16_t bottom);
bool qp_tft_panel_pixdata(painter_device_t device, const void *pixel_data, uint32_t native_pixel_count);
bool qp_tft_panel_palette_convert(painter_device_t device, int16_t palette_size, qp_pixel_t *palette);
bool qp_tft_panel_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);
uint16_t qp_rgb888_to_rgb565(uint8_t r, uint8_t g, uint8_t b);
uint16_t qp_rgb888_to_rgb565_swapped(uint8_t r, uint8_t g, uint8_t b);
uint16_t qp_rgb888_to_bgr565(uint8_t r, uint8_t g, uint8_t b);
uint16_t qp_rgb888_to_bgr565_swapped(uint8_t r, uint8_t g, uint8_t b);
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