54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
#include <string.h>
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#include <stdint.h>
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#include "canvas.h"
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#include "displayDriver.h"
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static canvas_t canvas;
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static uint8_t canvasStorage[CANVAS_WIDTH * CANVAS_HEIGHT];
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void canvasInit() {
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canvas.height = CANVAS_HEIGHT;
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canvas.width = CANVAS_WIDTH;
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canvas.size = CANVAS_HEIGHT * CANVAS_WIDTH;
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canvas.canvas = canvasStorage;
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// Bit7 signals need to be transfered for octet
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memset(canvasStorage, 0x80, canvas.size);
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displayDriverTransferCanvas();
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}
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canvas_t *canvasGet() {
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return &canvas;
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}
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void canvasShow() {
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displayDriverTransferCanvas();
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}
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void canvasSetPixel(uint8_t column, uint8_t row, uint8_t color) {
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*((canvas.canvas) + (row * canvas.width + column)) = (color + 0x80);
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}
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void canvasWipeRow(uint8_t row) {
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memmove(((canvas.canvas)+canvas.width), canvas.canvas, canvas.width*row);
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for (uint8_t i = 10; i < canvas.width*(row+1); i++) {
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*((canvas.canvas)+i) += 0x80;
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}
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memset(canvas.canvas, 0x80, canvas.width);
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}
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uint8_t canvasIsRowFilled(uint8_t row) {
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uint8_t res = 1;
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for (uint8_t column = 0; column < canvas.width; column++) {
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if (*((canvas.canvas) + (row * canvas.width + column)) == 0) {
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res = 0;
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break;
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}
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}
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return res;
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}
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