drashna/qmk_firmware
1
0
Fork 0
Code Activity Actions

[QP] Native palette support for fonts (#20645)

Browse source 
Co-authored-by: Joel Challis <git@zvecr.com>
This commit is contained in:
Pablo Martínez 2024-02-16 14:58:00 +01:00 • committed by GitHub
parent cf162f90fe
commit 3a0f11a661
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
4 changed files with 49 additions and 36 deletions
Download patch file Download diff file Expand all files Collapse all files

40
quantum/painter/qp_draw_codec.c
View file

@ -1,4 +1,5 @@
// Copyright 2021 Nick Brassel (@tzarc)
// Copyright 2023 Pablo Martinez (@elpekenin) <elpekenin@elpekenin.dev>
// SPDX-License-Identifier: GPL-2.0-or-later
#include "qp_internal.h"
@ -164,6 +165,45 @@ bool qp_internal_byte_appender(uint8_t byteval, void* cb_arg) {
return true;
}
// Helper shared between image and font rendering -- uses either (qp_internal_decode_palette + qp_internal_pixel_appender) or (qp_internal_send_bytes) to send data data to the display based on the asset's native-ness
bool qp_internal_appender(painter_device_t device, uint8_t bpp, uint32_t pixel_count, qp_internal_byte_input_callback input_callback, void* input_state) {
painter_driver_t* driver = (painter_driver_t*)device;
bool ret = false;
// Non-native pixel format
if (bpp <= 8) {
// Set up the output state
qp_internal_pixel_output_state_t output_state = {.device = device, .pixel_write_pos = 0, .max_pixels = qp_internal_num_pixels_in_buffer(device)};
// Decode the pixel data and stream to the display
ret = qp_internal_decode_palette(device, pixel_count, bpp, input_callback, input_state, qp_internal_global_pixel_lookup_table, qp_internal_pixel_appender, &output_state);
// Any leftovers need transmission as well.
if (ret && output_state.pixel_write_pos > 0) {
ret &= driver->driver_vtable->pixdata(device, qp_internal_global_pixdata_buffer, output_state.pixel_write_pos);
}
}
// Native pixel format
else if (bpp != driver->native_bits_per_pixel) {
qp_dprintf("Asset's bpp (%d) doesn't match the target display's native_bits_per_pixel (%d)\n", bpp, driver->native_bits_per_pixel);
return false;
} else {
// Set up the output state
qp_internal_byte_output_state_t output_state = {.device = device, .byte_write_pos = 0, .max_bytes = qp_internal_num_pixels_in_buffer(device) * driver->native_bits_per_pixel / 8};
// Stream the raw pixel data to the display
uint32_t byte_count = pixel_count * bpp / 8;
ret = qp_internal_send_bytes(device, byte_count, input_callback, input_state, qp_internal_byte_appender, &output_state);
// Any leftovers need transmission as well.
if (ret && output_state.byte_write_pos > 0) {
ret &= driver->driver_vtable->pixdata(device, qp_internal_global_pixdata_buffer, output_state.byte_write_pos * 8 / driver->native_bits_per_pixel);
}
}
return ret;
}
qp_internal_byte_input_callback qp_internal_prepare_input_state(qp_internal_byte_input_state_t* input_state, painter_compression_t compression) {
switch (compression) {
case IMAGE_UNCOMPRESSED: