pimoroni-pico/libraries/pico_graphics/pico_graphics_pen_rgb565.cpp

34 wiersze
1.2 KiB
C++

#include "pico_graphics.hpp"
namespace pimoroni {
PicoGraphics_PenRGB565::PicoGraphics_PenRGB565(uint16_t width, uint16_t height, void *frame_buffer)
: PicoGraphics(width, height, frame_buffer) {
this->pen_type = PEN_RGB565;
if(this->frame_buffer == nullptr) {
this->frame_buffer = (void *)(new uint8_t[buffer_size(width, height)]);
}
}
void PicoGraphics_PenRGB565::set_pen(uint c) {
color = c;
}
void PicoGraphics_PenRGB565::set_pen(uint8_t r, uint8_t g, uint8_t b) {
src_color = {r, g, b};
color = src_color.to_rgb565();
}
int PicoGraphics_PenRGB565::create_pen(uint8_t r, uint8_t g, uint8_t b) {
return RGB(r, g, b).to_rgb565();
}
void PicoGraphics_PenRGB565::set_pixel(const Point &p) {
uint16_t *buf = (uint16_t *)frame_buffer;
buf[p.y * bounds.w + p.x] = color;
}
void PicoGraphics_PenRGB565::set_pixel_span(const Point &p, uint l) {
// pointer to byte in framebuffer that contains this pixel
uint16_t *buf = (uint16_t *)frame_buffer;
buf = &buf[p.y * bounds.w + p.x];
while(l--) {
*buf++ = color;
}
}
}