mirror of https://github.com/JorjBauer/aiie.git
93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
#include "sdl-printer.h"
|
|
|
|
#define WINDOWNAME "printer"
|
|
|
|
inline void putpixel(SDL_Renderer *renderer, int x, int y, uint8_t d)
|
|
{
|
|
uint8_t v = (d ? 0xFF : 0x00);
|
|
|
|
SDL_SetRenderDrawColor(renderer, v, v, v, 255);
|
|
SDL_RenderDrawPoint(renderer, x, y);
|
|
}
|
|
|
|
SDLPrinter::SDLPrinter()
|
|
{
|
|
ypos = 0;
|
|
isDirty = false;
|
|
|
|
memset((void *)_hackyBitmap, 0, sizeof(_hackyBitmap));
|
|
|
|
window = SDL_CreateWindow(WINDOWNAME,
|
|
SDL_WINDOWPOS_UNDEFINED,
|
|
SDL_WINDOWPOS_UNDEFINED,
|
|
WIDTH, HEIGHT,
|
|
SDL_WINDOW_SHOWN);
|
|
|
|
// SDL_RENDERER_SOFTWARE because, at least on my Mac, this has some
|
|
// serious issues with hardware accelerated drawing (flashing and
|
|
// crashing).
|
|
renderer = SDL_CreateRenderer(window, -1, 0);
|
|
SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255);
|
|
SDL_RenderClear(renderer); // clear it to the selected color
|
|
SDL_RenderPresent(renderer); // perform the render
|
|
}
|
|
|
|
SDLPrinter::~SDLPrinter()
|
|
{
|
|
}
|
|
|
|
void SDLPrinter::update()
|
|
{
|
|
if (isDirty) {
|
|
isDirty = false; // set early in case there's a race
|
|
|
|
for (int y=0; y<HEIGHT; y++) {
|
|
for (int x=0; x<WIDTH; x++) {
|
|
if (_hackyBitmap[y*WIDTH+x]) {
|
|
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
|
|
} else {
|
|
SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
|
|
}
|
|
SDL_RenderDrawPoint(renderer, x, y);
|
|
}
|
|
}
|
|
|
|
SDL_RenderPresent(renderer);
|
|
}
|
|
}
|
|
|
|
void SDLPrinter::addLine(uint8_t *rowOfBits)
|
|
{
|
|
for (int yoff=0; yoff<9; yoff++) {
|
|
// 960 pixels == 120 bytes -- FIXME
|
|
for (int i=0; i<(NATIVEWIDTH/8); i++) {
|
|
uint8_t bv = rowOfBits[yoff*120+i];
|
|
for (int xoff=0; xoff<8; xoff++) {
|
|
// scale X from "actual FX80" coordinates to "real printer" coordinates
|
|
uint16_t actualX = (uint16_t)(((float)(i*8+xoff) * (float)WIDTH) / (float)NATIVEWIDTH);
|
|
uint8_t pixelColor = (bv & (1 << (7-xoff))) ? 0xFF : 0x00;
|
|
// Make sure to preserve any pixels we've already drawn b/c scaling & overstrike...
|
|
_hackyBitmap[actualX + ((ypos+yoff)%HEIGHT) * WIDTH] |= pixelColor;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ypos >= HEIGHT) {
|
|
ypos = 0;
|
|
}
|
|
|
|
isDirty = true;
|
|
}
|
|
|
|
void SDLPrinter::moveDownPixels(uint8_t p)
|
|
{
|
|
ypos+= p;
|
|
if (ypos >= HEIGHT) {
|
|
// clear page & restart
|
|
SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
|
|
SDL_RenderClear(renderer);
|
|
isDirty = true;
|
|
ypos = 0;
|
|
}
|
|
}
|