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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../../inc/MarlinConfig.h"
#if HAS_GRAPHICAL_TFT
#include "canvas.h"
uint16_t CANVAS::width, CANVAS::height;
uint16_t CANVAS::startLine, CANVAS::endLine;
uint16_t *CANVAS::buffer = TFT::buffer;
void CANVAS::New(uint16_t x, uint16_t y, uint16_t width, uint16_t height) {
CANVAS::width = width;
CANVAS::height = height;
startLine = 0;
endLine = 0;
tft.set_window(x, y, x + width - 1, y + height - 1);
}
void CANVAS::Continue() {
startLine = endLine;
endLine = TFT_BUFFER_SIZE < width * (height - startLine) ? startLine + TFT_BUFFER_SIZE / width : height;
}
bool CANVAS::ToScreen() {
tft.write_sequence(buffer, width * (endLine - startLine));
return endLine == height;
}
void CANVAS::SetBackground(uint16_t color) {
/* TODO: test and optimize perfomance */
/*
uint32_t count = (endLine - startLine) * width;
uint16_t *pixel = buffer;
while (count--)
*pixel++ = color;
*/
const uint32_t two_pixels = (((uint32_t )color) << 16) | color;
uint32_t count = ((endLine - startLine) * width + 1) >> 1;
uint32_t *pointer = (uint32_t *)buffer;
while (count--) *pointer++ = two_pixels;
}
void CANVAS::AddText(uint16_t x, uint16_t y, uint16_t color, uint8_t *string, uint16_t maxWidth) {
if (endLine < y || startLine > y + GetFontHeight()) return;
if (maxWidth == 0) maxWidth = width - x;
uint16_t stringWidth = 0;
for (uint16_t i = 0 ; *(string + i) ; i++) {
glyph_t *glyph = Glyph(string + i);
if (stringWidth + glyph->BBXWidth > maxWidth) break;
AddImage(x + stringWidth + glyph->BBXOffsetX, y + Font()->FontAscent - glyph->BBXHeight - glyph->BBXOffsetY, glyph->BBXWidth, glyph->BBXHeight, GREYSCALE1, ((uint8_t *)glyph) + sizeof(glyph_t), &color);
stringWidth += glyph->DWidth;
}
}
void CANVAS::AddImage(int16_t x, int16_t y, MarlinImage image, uint16_t *colors) {
uint16_t *data = (uint16_t *)Images[image].data;
if (!data) return;
uint16_t image_width = Images[image].width,
image_height = Images[image].height;
colorMode_t color_mode = Images[image].colorMode;
if (color_mode != HIGHCOLOR)
return AddImage(x, y, image_width, image_height, color_mode, (uint8_t *)data, colors);
// HIGHCOLOR - 16 bits per pixel
for (int16_t i = 0; i < image_height; i++) {
int16_t line = y + i;
if (line >= startLine && line < endLine) {
uint16_t *pixel = buffer + x + (line - startLine) * width;
for (int16_t j = 0; j < image_width; j++) {
if ((x + j >= 0) && (x + j < width)) *pixel = ENDIAN_COLOR(*data);
pixel++;
data++;
}
}
else
data += image_width;
}
}
void CANVAS::AddImage(int16_t x, int16_t y, uint8_t image_width, uint8_t image_height, colorMode_t color_mode, uint8_t *data, uint16_t *colors) {
uint8_t bitsPerPixel;
switch (color_mode) {
case GREYSCALE1: bitsPerPixel = 1; break;
case GREYSCALE2: bitsPerPixel = 2; break;
case GREYSCALE4: bitsPerPixel = 4; break;
default: return;
}
uint8_t mask = 0xFF >> (8 - bitsPerPixel),
pixelsPerByte = 8 / bitsPerPixel;
colors--;
for (int16_t i = 0; i < image_height; i++) {
int16_t line = y + i;
if (line >= startLine && line < endLine) {
uint16_t *pixel = buffer + x + (line - startLine) * width;
uint8_t offset = 8 - bitsPerPixel;
for (int16_t j = 0; j < image_width; j++) {
if (offset > 8) {
data++;
offset = 8 - bitsPerPixel;
}
if ((x + j >= 0) && (x + j < width)) {
const uint8_t color = ((*data) >> offset) & mask;
if (color) *pixel = *(colors + color);
}
pixel++;
offset -= bitsPerPixel;
}
data++;
}
else
data += (image_width + pixelsPerByte - 1) / pixelsPerByte;
}
}
void CANVAS::AddRectangle(uint16_t x, uint16_t y, uint16_t rectangleWidth, uint16_t rectangleHeight, uint16_t color) {
if (endLine < y || startLine > y + rectangleHeight) return;
for (uint16_t i = 0; i < rectangleHeight; i++) {
uint16_t line = y + i;
if (line >= startLine && line < endLine) {
uint16_t *pixel = buffer + x + (line - startLine) * width;
if (i == 0 || i == rectangleHeight - 1) {
for (uint16_t j = 0; j < rectangleWidth; j++) *pixel++ = color;
}
else {
*pixel = color;
pixel += rectangleWidth - 1;
*pixel = color;
}
}
}
}
void CANVAS::AddBar(uint16_t x, uint16_t y, uint16_t barWidth, uint16_t barHeight, uint16_t color) {
if (endLine < y || startLine > y + barHeight) return;
for (uint16_t i = 0; i < barHeight; i++) {
uint16_t line = y + i;
if (line >= startLine && line < endLine) {
uint16_t *pixel = buffer + x + (line - startLine) * width;
for (uint16_t j = 0; j < barWidth; j++) *pixel++ = color;
}
}
}
CANVAS Canvas;
#endif // HAS_GRAPHICAL_TFT
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