Commit 7ec9a3d7 authored by Birte Kristina Friesel's avatar Birte Kristina Friesel
Browse files

framebuffer: add scroll function

parent 8d928138

include/object/framebuffer.h

+1 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ class Framebuffer : public OutputStream 
		constexpr static unsigned int const height = CONFIG_framebuffer_height;



		void clear();

		void scroll();

		void fillBox(unsigned int x, unsigned int y, unsigned int w, unsigned int h);

		void drawAt(unsigned int x, unsigned int y, unsigned int w, unsigned int h, unsigned char *image);

		void setFont(const glyph_t *font) { this->font = font; }

src/os/object/framebuffer.cc

+14 −1
Original line number Diff line number Diff line
@@ -71,6 +71,19 @@ void Framebuffer::drawAt(unsigned int x, unsigned int y, unsigned int w, unsigne 
	}

}



void Framebuffer::scroll()

{

	for (unsigned int pos_x = 0; pos_x < width; pos_x++) {

		for (unsigned int pos_y = 1; pos_y < height/8; pos_y++) {

			data[pos_x * (height/8) + pos_y - 1] = data[pos_x * (height/8) + pos_y];

		}

		data[pos_x * (height/8) + height/8 - 1] = 0;

	}

	if (fontY >= 8) {

		fontY -= 8;

	}

}



void Framebuffer::put(char c)

{

	if (font == 0) {
@@ -96,7 +109,7 @@ void Framebuffer::put(char c) 
		put('\n');

	}

	if (fontY >= height) {

		return;

		scroll();

	}

	for (unsigned char i = 0; i < glyph_w; i++) {

#ifdef MULTIPASS_ARCH_arduino_nano