kopia lustrzana https://github.com/pimoroni/pimoroni-pico
43 wiersze
1.1 KiB
C++
43 wiersze
1.1 KiB
C++
#include "pico_graphics.hpp"
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namespace pimoroni {
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PicoGraphics_Pen1BitY::PicoGraphics_Pen1BitY(uint16_t width, uint16_t height, void *frame_buffer)
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: PicoGraphics(width, height, frame_buffer) {
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this->pen_type = PEN_1BIT;
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if(this->frame_buffer == nullptr) {
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this->frame_buffer = (void *)(new uint8_t[buffer_size(width, height)]);
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}
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}
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void PicoGraphics_Pen1BitY::set_pen(uint c) {
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color = c != 0 ? 1 : 0;
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}
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void PicoGraphics_Pen1BitY::set_pen(uint8_t r, uint8_t g, uint8_t b) {
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color = r != 0 || g != 0 || b != 0 ? 1 : 0;
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}
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void PicoGraphics_Pen1BitY::set_pixel(const Point &p) {
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// pointer to byte in framebuffer that contains this pixel
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uint8_t *buf = (uint8_t *)frame_buffer;
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uint8_t *f = &buf[(p.y / 8) + (p.x * bounds.h / 8)];
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uint bo = 7 - (p.y & 0b111);
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// forceably clear the bit
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*f &= ~(1U << bo);
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// set pixel
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*f |= (color << bo);
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}
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void PicoGraphics_Pen1BitY::set_pixel_span(const Point &p, uint l) {
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Point po(p);
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while(l--) {
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set_pixel(po);
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po.x++;
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}
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}
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} |