mirror of
https://github.com/ByteWelder/Tactility.git
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7ea8c346b0
Graphics & rendering - Implement `binfont-module` to generate bitmap fonts on the device itself - Remove lodepng support from LVGL library and create `Modules/lodepng-module` to make the feature re-usable in non-LVGL apps too. Add binding functions for LVGL support. - Implement large icons for boot screen (Tactility and USB logos) - Remove unused asset files in `Data/` Boot - Split up `Tactility.cpp` and its `run()` function into various `Init*.cpp` files. - Re-implement `Boot.cpp` app as non-LVGL app - Boot app now has a `BootSequence.cpp` for the init code. - LVGL is now started when the Boot app finishes - Move more init logic into Boot app BLE - Don't allocate scan result buffers unless BLE is on - Allocate scan results in external memory if possible UX & UI - USB Settings app: remove border from the button container
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include <binfont/binfont.h>
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#include <graphics/pixel_buffer.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Alpha-blends one glyph over the existing pixels of a PixelBuffer.
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* @param[out] buffer destination, in any pixel format
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* @param[in] x pen position x
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* @param[in] baseline_y pen position y (the baseline)
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* @param[in] font the font
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* @param[in] codepoint the Unicode codepoint
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* @param[in] color glyph colour as RGB565
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* @param[in] conversion how colours reduce into the buffer's native format (see PixelBufferConversion)
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* @return the horizontal advance in pixels, or 0 when the font has no glyph for the codepoint
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*/
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int binfont_draw_glyph_rgb565(
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struct PixelBuffer* buffer,
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int x,
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int baseline_y,
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struct BinFont* font,
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uint32_t codepoint,
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uint16_t color,
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enum PixelBufferConversion conversion
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);
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/**
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* @brief Alpha-blends a UTF-8 string over the existing pixels of a PixelBuffer, applying kerning.
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* @param[out] buffer destination, in any pixel format
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* @param[in] x pen position x
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* @param[in] baseline_y pen position y (the baseline)
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* @param[in] font the font
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* @param[in] text UTF-8 encoded, null-terminated text
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* @param[in] color glyph colour as RGB565
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* @param[in] conversion how colours reduce into the buffer's native format (see PixelBufferConversion)
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* @return the total advance in pixels
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*/
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int binfont_draw_text_rgb565(
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struct PixelBuffer* buffer,
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int x,
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int baseline_y,
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struct BinFont* font,
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const char* text,
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uint16_t color,
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enum PixelBufferConversion conversion
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);
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#ifdef __cplusplus
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}
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#endif
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