mirror of
https://github.com/JorjBauer/aiie.git
synced 2024-08-14 19:29:00 +00:00
* New BIOS interface * New linux framebuffer version * Unified linuxfb and SDL with Teensy * Abstracted VM RAM * Fixed disk image corruption due to bad cache handling * Variable CPU speed support
212 lines
5.3 KiB
C++
212 lines
5.3 KiB
C++
#include <ctype.h> // isgraph
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#include "sdl-display.h"
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#include "bios-font.h"
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#include "images.h"
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#include "globals.h"
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#include "applevm.h"
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#include "apple/appleui.h"
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// RGB map of each of the lowres colors
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const uint8_t loresPixelColors[16][3] = { { 0, 0, 0 }, // black
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{ 195, 0, 48 }, // magenta
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{ 0, 0, 130 }, // dark blue
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{ 166, 52, 170 }, // purple
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{ 0, 146, 0 }, // dark green
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{ 105, 105, 105 }, // drak grey
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{ 24, 113, 255 }, // medium blue
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{ 12, 190, 235 }, // light blue
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{ 150, 85, 40 }, // brown
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{ 255, 24, 44 }, // orange
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{ 150, 170, 170 }, // light gray
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{ 255, 158, 150 }, // pink
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{ 0, 255, 0 }, // green
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{ 255, 255, 0 }, // yellow
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{ 130, 255, 130 }, // aqua
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{ 255, 255, 255 } // white
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};
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SDLDisplay::SDLDisplay()
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{
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// FIXME: abstract constants
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screen = SDL_CreateWindow("Aiie!",
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SDL_WINDOWPOS_UNDEFINED,
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SDL_WINDOWPOS_UNDEFINED,
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SDLDISPLAY_WIDTH, SDLDISPLAY_HEIGHT,
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SDL_WINDOW_SHOWN);
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// SDL_RENDERER_SOFTWARE because, at least on my Mac, this has some
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// serious issues with hardware accelerated drawing (flashing and crashing).
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renderer = SDL_CreateRenderer(screen, -1, SDL_RENDERER_SOFTWARE);
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SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255); // set to white
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SDL_RenderClear(renderer); // clear it to the selected color
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SDL_RenderPresent(renderer); // perform the render
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}
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SDLDisplay::~SDLDisplay()
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{
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SDL_Quit();
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}
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void SDLDisplay::flush()
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{
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SDL_RenderPresent(renderer);
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}
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void SDLDisplay::redraw()
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{
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// primarily for the device, where it's in and out of the
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// bios. Draws the background image.
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printf("redraw background\n");
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g_ui->drawStaticUIElement(UIeOverlay);
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if (g_vm && g_ui) {
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// determine whether or not a disk is inserted & redraw each drive
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g_ui->drawOnOffUIElement(UIeDisk1_state, ((AppleVM *)g_vm)->DiskName(0)[0] == '\0');
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g_ui->drawOnOffUIElement(UIeDisk2_state, ((AppleVM *)g_vm)->DiskName(1)[0] == '\0');
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}
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}
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void SDLDisplay::drawImageOfSizeAt(const uint8_t *img,
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uint16_t sizex, uint8_t sizey,
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uint16_t wherex, uint8_t wherey)
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{
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for (uint8_t y=0; y<sizey; y++) {
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for (uint16_t x=0; x<sizex; x++) {
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const uint8_t *p = &img[(y * sizex + x)*3];
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p = &img[(y * sizex + x)*3];
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drawPixel(x+wherex, y+wherey, p[0], p[1], p[2]);
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}
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}
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}
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#define BASEX 36
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#define BASEY 26
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void SDLDisplay::blit(AiieRect r)
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{
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uint8_t *videoBuffer = g_vm->videoBuffer; // FIXME: poking deep
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for (uint8_t y=0; y<192; y++) {
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for (uint16_t x=0; x<280; x++) {
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uint16_t pixel = (y*DISPLAYRUN+x)/2;
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uint8_t colorIdx;
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if (x & 1) {
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colorIdx = videoBuffer[pixel] & 0x0F;
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} else {
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colorIdx = videoBuffer[pixel] >> 4;
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}
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for (uint8_t xoff=0; xoff<2; xoff++) {
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for (uint8_t yoff=0; yoff<2; yoff++) {
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// FIXME: validate BPP >= 3?
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SDL_SetRenderDrawColor(renderer, loresPixelColors[colorIdx][0], loresPixelColors[colorIdx][1], loresPixelColors[colorIdx][2], 255);
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SDL_RenderDrawPoint(renderer, x*2+xoff+BASEX, y*2+yoff+BASEY);
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}
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}
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}
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}
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if (overlayMessage[0]) {
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drawString(M_SELECTDISABLED, 1, 240 - 16 - 12, overlayMessage);
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}
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SDL_RenderPresent(renderer);
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}
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inline void putpixel(SDL_Renderer *renderer, int x, int y, uint8_t r, uint8_t g, uint8_t b)
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{
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SDL_SetRenderDrawColor(renderer, r, g, b, 255);
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SDL_RenderDrawPoint(renderer, x, y);
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}
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void SDLDisplay::drawPixel(uint16_t x, uint16_t y, uint16_t color)
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{
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uint8_t
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r = (color & 0xF800) >> 8,
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g = (color & 0x7E0) >> 3,
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b = (color & 0x1F) << 3;
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// Pixel-doubling
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for (int yoff=0; yoff<2; yoff++) {
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for (int xoff=0; xoff<2; xoff++) {
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putpixel(renderer, xoff+x*2, yoff+y*2, r, g, b);
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}
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}
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}
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void SDLDisplay::drawPixel(uint16_t x, uint16_t y, uint8_t r, uint8_t g, uint8_t b)
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{
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// Pixel-doubling
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for (int yoff=0; yoff<2; yoff++) {
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for (int xoff=0; xoff<2; xoff++) {
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putpixel(renderer, xoff+x*2, yoff+y*2, r, g, b);
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}
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}
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}
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void SDLDisplay::drawCharacter(uint8_t mode, uint16_t x, uint8_t y, char c)
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{
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int8_t xsize = 8,
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ysize = 0x0C,
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offset = 0x20;
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uint16_t temp;
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c -= offset;// font starts with a space
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uint16_t offPixel, onPixel;
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switch (mode) {
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case M_NORMAL:
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onPixel = 0xFFFF;
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offPixel = 0x0010;
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break;
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case M_SELECTED:
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onPixel = 0x0000;
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offPixel = 0xFFFF;
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break;
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case M_DISABLED:
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default:
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onPixel = 0x7BEF;
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offPixel = 0x0000;
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break;
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case M_SELECTDISABLED:
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onPixel = 0x7BEF;
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offPixel = 0xFFE0;
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break;
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}
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temp=(c*ysize);
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for (int8_t y_off = 0; y_off <= ysize; y_off++) {
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uint8_t ch = BiosFont[temp];
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for (int8_t x_off = 0; x_off <= xsize; x_off++) {
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if (ch & (1 << (7-x_off))) {
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drawPixel(x + x_off, y + y_off, onPixel);
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} else {
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drawPixel(x + x_off, y + y_off, offPixel);
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}
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}
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temp++;
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}
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}
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void SDLDisplay::drawString(uint8_t mode, uint16_t x, uint8_t y, const char *str)
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{
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int8_t xsize = 8; // width of a char in this font
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for (int8_t i=0; i<strlen(str); i++) {
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drawCharacter(mode, x, y, str[i]);
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x += xsize; // fixme: any inter-char spacing?
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}
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}
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void SDLDisplay::clrScr()
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{
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SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); // set to white
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SDL_RenderClear(renderer); // clear it to the selected color
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SDL_RenderPresent(renderer); // perform the render
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}
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