62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
#pragma once
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#include <FreeRTOS.h>
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#include <nrf_font.h>
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#include <task.h>
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#include <cstddef>
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#include <cstdint>
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#include "drivers/BufferProvider.h"
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namespace Pinetime {
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namespace Drivers {
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class St7789;
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}
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namespace Components {
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class Gfx : public Pinetime::Drivers::BufferProvider {
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public:
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explicit Gfx(Drivers::St7789& lcd);
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void Init();
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void ClearScreen();
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void DrawString(uint8_t x, uint8_t y, uint16_t color, const char* text, const FONT_INFO* p_font, bool wrap);
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void DrawChar(const FONT_INFO* font, uint8_t c, uint8_t* x, uint8_t y, uint16_t color);
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void FillRectangle(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint16_t color);
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void FillRectangle(uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t* b);
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void SetScrollArea(uint16_t topFixedLines, uint16_t scrollLines, uint16_t bottomFixedLines);
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void SetScrollStartLine(uint16_t line);
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void Sleep();
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void Wakeup();
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bool GetNextBuffer(uint8_t** buffer, size_t& size) override;
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void pixel_draw(uint8_t x, uint8_t y, uint16_t color);
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private:
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static constexpr uint8_t width = 240;
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static constexpr uint8_t height = 240;
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enum class Action { None, FillRectangle, DrawChar };
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struct State {
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State() : busy {false}, action {Action::None}, remainingIterations {0}, currentIteration {0} {
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}
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volatile bool busy;
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volatile Action action;
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volatile uint16_t remainingIterations;
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volatile uint16_t currentIteration;
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volatile FONT_INFO* font;
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volatile uint16_t color;
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volatile uint8_t character;
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volatile TaskHandle_t taskToNotify = nullptr;
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};
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volatile State state;
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uint16_t buffer[width]; // 1 line buffer
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Drivers::St7789& lcd;
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void SetBackgroundColor(uint16_t color);
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void WaitTransferFinished() const;
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void NotifyEndOfTransfer(TaskHandle_t task);
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};
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}
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}
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