new text rendering

This commit is contained in:
Julian Hinxlage 2020-01-07 13:23:25 +01:00
parent 445a11158d
commit f6b0e7abe7
8 changed files with 66 additions and 375 deletions

View File

@ -1,6 +1,8 @@
#include "../src/Bitmap.h" #include "Font.hpp"
#include "../src/TextRenderer.h" #include "internal.hpp"
#include <internal.hpp> #include "vkvm.hpp"
#include <thread>
/** /**
* @author: Julian Hinxlage * @author: Julian Hinxlage
@ -12,24 +14,58 @@ int main() {
vkvm::initialize(0); vkvm::initialize(0);
vkvm::setLogLevel(vkvm::DEBUG); vkvm::setLogLevel(vkvm::DEBUG);
TextRenderer textRenderer = TextRenderer(); Font font(std::string() + "../res/font" + std::to_string(vkvm::getFont()) + ".bmp", std::string() + "../res/font" + std::to_string(vkvm::getFont()) + ".toml");
textRenderer.setLeftMargin(1);
textRenderer.setBottomMargin(1);
vkvm::registerEvent(vkvm::EventType::RenderText, [&font]() {
vkvm::registerEvent(vkvm::EventType::RenderText, [&textRenderer]() {
std::string currentText = vkvm::getText(); std::string currentText = vkvm::getText();
vkvm::log(vkvm::DEBUG, currentText); int perRow = vkvm::getWidth() / font.width();
textRenderer.update(currentText); auto bc = vkvm::getBackgroundColor();
auto fc = vkvm::getForegroundColor();
//clear area
for(int y = 0; y < vkvm::getHeight();y++){
for(int x = 0; x < vkvm::getWidth();x++) {
vkvm::setPixel(x,y,bc);
}
}
int x = 0;
int y = 0;
for(char c : currentText){
if(c == '\n'){
y++;
x = 0;
}else if(c == -127){
//TODO(julian): cursor
}
else{
if(x == perRow){
y++;
x = 0;
}
for(int i = 0; i < font.height();i++){
for(int j = 0; j < font.width();j++){
if(font.getPixel(c, j, i)){
vkvm::setPixel(x * font.width() + j, y * font.height() + i, fc);
}else{
vkvm::setPixel(x * font.width() + j, y * font.height() + i, bc);
}
}
}
x++;
}
}
vkvm::callEvent(vkvm::EventType::Redraw); vkvm::callEvent(vkvm::EventType::Redraw);
}); });
vkvm::registerEvent(vkvm::EventType::UpdateControlRegisters, [&textRenderer]() { vkvm::registerEvent(vkvm::EventType::UpdateControlRegisters, [&font]() {
textRenderer.updateParameters(); font.load(std::string() + "../res/font" + std::to_string(vkvm::getFont()) + ".bmp", std::string() + "../res/font" + std::to_string(vkvm::getFont()) + ".toml");
}); });
while (true) { while (true) {
std::this_thread::sleep_for(std::chrono::milliseconds(100));
} }
return 0; return 0;
} }

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@ -1,4 +1,4 @@
#include "Bitmap.h" #include "Bitmap.hpp"
#include <fstream> #include <fstream>
#include <iostream> #include <iostream>
@ -53,7 +53,7 @@ unsigned int Bitmap::getPixel(int x, int y) {
unsigned int pixel = 0; unsigned int pixel = 0;
char *ptr = getData() + ((getHeight() - 1 - y) * getWidth() + x) * (getBitsPerPixel() / 8); char *ptr = getData() + ((getHeight() - 1 - y) * getWidth() + x) * (getBitsPerPixel() / 8);
for(int i = 0; i < getBitsPerPixel() / 8;i++){ for(int i = 0; i < getBitsPerPixel() / 8;i++){
auto value = reinterpret_cast<char*>(&pixel+i); auto value = reinterpret_cast<char*>(&pixel)+i;
*value = ptr[i]; *value = ptr[i];
} }
if(pixel != 0){ if(pixel != 0){

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@ -1,5 +1,5 @@
#ifndef TEXTRENDERER_BITMAP_H #ifndef TEXTRENDERER_BITMAP_HPP
#define TEXTRENDERER_BITMAP_H #define TEXTRENDERER_BITMAP_HPP
#include <string> #include <string>
#include <vector> #include <vector>
@ -65,4 +65,4 @@ private:
}; };
#endif //TEXTRENDERER_BITMAP_H #endif //TEXTRENDERER_BITMAP_HPP

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@ -2,7 +2,7 @@
// Copyright (c) 2019 Julian Hinxlage. All rights reserved. // Copyright (c) 2019 Julian Hinxlage. All rights reserved.
// //
#include "Font.h" #include "Font.hpp"
#include "../lib/toml/cpptoml.h" #include "../lib/toml/cpptoml.h"
Font::Font() { Font::Font() {
@ -16,6 +16,9 @@ Font::Font() {
yStart = 0; yStart = 0;
fillValue = 0; fillValue = 0;
firstChar = ' '; firstChar = ' ';
pixelSize = 1;
gap = -1;
invertedColors = false;
} }
Font::Font(const std::string &file, const std::string &configFile) : Font() { Font::Font(const std::string &file, const std::string &configFile) : Font() {
@ -37,7 +40,7 @@ void Font::load(const std::string &file, const std::string &configFile) {
firstChar = config->get_as<char>("firstChar").value_or(0); firstChar = config->get_as<char>("firstChar").value_or(0);
pixelSize = config->get_as<int>("pixelSize").value_or(0); pixelSize = config->get_as<int>("pixelSize").value_or(0);
gap = config->get_as<int>("gap").value_or(-1); gap = config->get_as<int>("gap").value_or(-1);
invertedColors = config->get_as<bool>("invertedColors").value_or(0); invertedColors = static_cast<bool>(config->get_as<int>("invertedColors").value_or(0));
} }
int Font::width() { int Font::width() {

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@ -2,10 +2,10 @@
// Copyright (c) 2019 Julian Hinxlage. All rights reserved. // Copyright (c) 2019 Julian Hinxlage. All rights reserved.
// //
#ifndef TEXTRENDERER_FONT_H #ifndef TEXTRENDERER_FONT_HPP
#define TEXTRENDERER_FONT_H #define TEXTRENDERER_FONT_HPP
#include "Bitmap.h" #include "Bitmap.hpp"
/** /**
* @author: Julian Hinxlage * @author: Julian Hinxlage
@ -52,4 +52,4 @@ public:
}; };
#endif //TEXTRENDERER_FONT_H #endif //TEXTRENDERER_FONT_HPP

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@ -1,290 +0,0 @@
//
// Created by my on 2019/11/16.
//
#include <internal.hpp>
#include "TextRenderer.h"
TextRenderer::TextRenderer() {
updateParameters();
}
void TextRenderer::update(std::string newText) {
currentX = 0;
currentY = 0;
int i;
int fontNumbersInOneLine = windowWidth / (font.width() + left_margin);
int space = 0;
int currentLine;
std::vector<std::vector<bool>> characterBitmap;
clear();
newText = adjustText(newText);
vkvm::log(vkvm::LogLevel::DEBUG, newText, "\n");
for(i = 0; i < newText.size(); i++) {
if(newText[i] == returnCharacter) {
space += (fontNumbersInOneLine - ((i + space) % fontNumbersInOneLine) - 1);
} else {
if(newText[i] == specialCharacter) {
space -= 1;
int tempBlinkX = blinkX;
int tempBlinkY = blinkY;
int tempSpecialCharacterCurrentX = specialCharacterCurrentX;
int tempSpecialCharacterCurrentY = specialCharacterCurrentY;
char tempSpecialChar = _specialCharacter;
specialCharacterCurrentX = ((i + space) % fontNumbersInOneLine) * (font.width() + left_margin);
specialCharacterCurrentY = ((i + space) / fontNumbersInOneLine) * (font.height() + bottom_margin);
blinkX = specialCharacterCurrentX + font.width();
blinkY = specialCharacterCurrentY;
_specialCharacter = newText[i - 1];
if(_specialCharacter != '\n') {
characterBitmap = getCharacter(_specialCharacter);
translateToSharedMemory(characterBitmap, specialCharacterCurrentX, specialCharacterCurrentY, true);
} else {
blinkX = 0;
blinkY += (font.height() + bottom_margin);
}
if(specialCharacterCurrentX != tempSpecialCharacterCurrentX && specialCharacterCurrentY != tempSpecialCharacterCurrentY) {
clear(tempBlinkX, tempBlinkY, tempBlinkX + 1, tempBlinkY + font.height() + 1);
if(tempSpecialChar != '\n' && (tempSpecialCharacterCurrentY * 10 + tempSpecialCharacterCurrentX <= specialCharacterCurrentY * 10 + tempSpecialCharacterCurrentX)) {
translateToSharedMemory(getCharacter(tempSpecialChar), tempSpecialCharacterCurrentX, tempSpecialCharacterCurrentY, true);
}
}
} else {
currentLine = ((i + space) / fontNumbersInOneLine);
currentX = ((i + space) % fontNumbersInOneLine) * (font.width() + left_margin);
currentY = (currentLine) * (font.height() + bottom_margin);
characterBitmap = getCharacter(newText[i]);
translateToSharedMemory(characterBitmap, currentX, currentY, false);
}
}
}
if(newText.size() < oldTextsize) {
clear(currentX, currentY, font.width(), currentY + font.height());
}
}
std::string TextRenderer::adjustText(std::string newText) {
int fontNumbersInOneLine = windowWidth / (font.width() + left_margin);
int totalLine = windowHeight / (font.height() + bottom_margin);
int stringLine = 1;
int characterNumberOfLastLine = 0;
for(char c : newText) {
if(c == returnCharacter) {
stringLine++;
characterNumberOfLastLine = 0;
} else if(c != specialCharacter) {
characterNumberOfLastLine++;
if(characterNumberOfLastLine == fontNumbersInOneLine) {
stringLine++;
characterNumberOfLastLine = 0;
}
}
}
if(stringLine > totalLine) {
int startLine = stringLine - totalLine;
int currentLine = 0;
int cursorLine;
for(int i = 0; i < newText.size(); i++) {
if(newText[i] == returnCharacter) {
currentLine++;
characterNumberOfLastLine = 0;
} else if(newText[i] != specialCharacter) {
characterNumberOfLastLine++;
if(characterNumberOfLastLine == fontNumbersInOneLine) {
currentLine++;
characterNumberOfLastLine = 0;
}
} else {
cursorLine = currentLine;
if(currentLine < startLine) {
return adjustText(newText, cursorLine, cursorLine + totalLine);
}
}
if(currentLine == startLine) {
return newText.substr(i + 1, newText.size());
}
}
}
return newText;
}
std::string TextRenderer::adjustText(std::string newText, int startLine, int endLine) {
int currentLine = 0;
int startIndex, endIndex;
int characterNumberOfCurrentLine = 0;
int fontNumbersInOneLine = windowWidth / (font.width() + left_margin);
for(int i = 0; i < newText.size(); i++) {
if(newText[i] == returnCharacter) {
characterNumberOfCurrentLine = 0;
currentLine++;
if(currentLine == startLine) {
startIndex = i;
}
if(currentLine == endLine) {
endIndex = i;
return newText.substr(startIndex + 1, endIndex);
}
} else if (newText[i] != specialCharacter) {
characterNumberOfCurrentLine++;
if(characterNumberOfCurrentLine == fontNumbersInOneLine) {
characterNumberOfCurrentLine = 0;
currentLine++;
if(currentLine == startLine) {
startIndex = i;
}
if(currentLine == endLine) {
endIndex = i;
return newText.substr(startIndex + 1, endIndex);
}
}
}
}
vkvm::log(vkvm::ERROR, "could not adjust string");
return std::string();
}
void TextRenderer::clear() {
clear(0, 0, windowWidth, windowHeight);
}
void TextRenderer::clear(int startX, int startY, int endX, int endY) {
int x, y;
for(y = startY; y < endY; y++) {
for(x = startX; x < endX; x++) {
vkvm::setPixel(x, y, backgroundColor);
}
}
}
std::vector<std::vector<bool>> TextRenderer::getCharacter(unsigned char character) {
std::vector<std::vector<bool>> bitmap_character;
bitmap_character.resize(font.height());
vkvm::log(vkvm::DEBUG, bitmap_character.size());
for (int y = 0; y < font.height(); y += fontSize) {
vkvm::log(vkvm::DEBUG, y);
for(int i = 0; i < fontSize; i++) {
bitmap_character[y + i].resize(font.width());
}
for (int x = 0; x < font.width(); x += fontSize) {
bitmap_character[y][x] = font.getPixel(character, x / fontSize, y / fontSize);
if(bitmap_character[y][x] && fontSize != 1) {
if(y != 0) {
for (int i = y - fontSize + 1; i < y; i++) {
bitmap_character[i][x] = bitmap_character[y - fontSize][x];
}
}
if(x != 0) {
for (int i = x - fontSize + 1; i < x; i++) {
bitmap_character[y][i] = bitmap_character[y][x - fontSize];
}
}
if(x != 0 && y != 0) {
for (int i = 1; i < fontSize; i++) {
bitmap_character[y - i][x - i] = bitmap_character[y - fontSize][x - fontSize];
}
}
}
}
}
vkvm::log(vkvm::DEBUG, bitmap_character.size());
return bitmap_character;
}
void TextRenderer::translateToSharedMemory(std::vector<std::vector<bool>> characterBitmap, int startX, int startY, bool flipColors) {
int x, y;
int _currentX = startX;
int _currentY = startY;
for(y = 0; y < font.height(); y++) {
for(x = 0; x < font.width(); x++) {
if(characterBitmap[y][x]) {
vkvm::log(vkvm::DEBUG, x, y);
if(flipColors) {
vkvm::setPixel(currentX, currentY, backgroundColor);
}else {
vkvm::setPixel(currentX, currentY, foregroundColor);
}
}
else {
if(flipColors)
vkvm::setPixel(currentX, currentY, foregroundColor);
else
vkvm::setPixel(currentX, currentY, backgroundColor);
}
_currentX++;
}
_currentX = startX;
_currentY++;
}
for(x = 0; x < left_margin; x++) {
for(y = 0; y < font.height(); y++) {
vkvm::setPixel(startX + font.width() + x, startY + y, backgroundColor);
}
}
for(y = 0; y < bottom_margin; y++) {
for(x = 0; x < font.width() + left_margin; x++) {
vkvm::setPixel(startX + x, startY + font.height() + y, backgroundColor);
}
}
}
void TextRenderer::setLeftMargin(int margin) {
left_margin = margin;
}
void TextRenderer::setBottomMargin(int margin) {
bottom_margin = margin;
}
void TextRenderer::updateParameters() {
windowHeight = vkvm::getHeight();
windowWidth = vkvm::getWidth();
int fontId = vkvm::getFont();
std::string fontResourcePath = "../res/font" + std::to_string(fontId) + ".bmp";
std::string fontConfigureFilePath = "../res/font" + std::to_string(fontId) + ".toml";
font = Font(fontResourcePath, fontConfigureFilePath);
backgroundColor = vkvm::getBackgroundColor();
foregroundColor = vkvm::getForegroundColor();
}

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@ -1,58 +0,0 @@
//
// Created by my on 2019/11/16.
//
#ifndef TEXTRENDERER_TEXTRENDERER_H
#define TEXTRENDERER_TEXTRENDERER_H
#include "Font.h"
#include <Color.hpp>
#include <iostream>
#include <string>
#include <thread>
#include <vkvm.hpp>
/**
* @author: Yajie Qi, Shaohua Tong
* @since: v0.0.0
* @brief: gets a string from the Shared Memory and converts the text into a bitmap-array.
*/
class TextRenderer {
public:
TextRenderer();
void update(std::string text);
void updateParameters();
std::vector<std::vector<bool>> getCharacter(unsigned char character);
void setLeftMargin(int margin);
void setBottomMargin(int margin);
void clear();
void clear(int startX, int startY, int endX, int endY);
private:
int left_margin = 1;
int bottom_margin = 1;
Font font;
void translateToSharedMemory(std::vector<std::vector<bool>> characterBitmap, int startX, int startY, bool flipColors);
vkvm::Color backgroundColor;
vkvm::Color foregroundColor;
int windowWidth;
int windowHeight;
char returnCharacter = '\n';
char specialCharacter = -127;
int specialCharacterCurrentX;
int specialCharacterCurrentY;
char _specialCharacter;
int fontSize = 1;
int currentX;
int currentY;
int oldTextsize{};
int blinkX = 0;
int blinkY = 0;
std::string adjustText(std::string newText);
std::string adjustText(std::string newText, int startLine, int endLine);
};
#endif //TEXTRENDERER_TEXTRENDERER_H

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@ -1,5 +1,5 @@
#include "../src/Bitmap.h" #include "Bitmap.hpp"
#include "../src/Font.h" #include "Font.hpp"
#include <catch2/catch.hpp> #include <catch2/catch.hpp>
TEST_CASE("default values") { TEST_CASE("default values") {