mirror of https://github.com/JorjBauer/aiie.git
252 lines
7.7 KiB
C++
252 lines
7.7 KiB
C++
#include <ctype.h> // isgraph
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#include "sdl-display.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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#include "images.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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{ 0xAC, 0x12, 0x4C }, // magenta
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{ 0x00, 0x07, 0x83 }, // dark blue
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{ 0xAA, 0x1A, 0xD1 }, // purple
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{ 0x00, 0x83, 0x2F }, // dark green
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{ 0x9F, 0x97, 0x7E }, // drak grey
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{ 0x00, 0x8A, 0xB5 }, // medium blue
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{ 0x9F, 0x9E, 0xFF }, // light blue
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{ 0x7A, 0x5F, 0x00 }, // brown
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{ 0xFF, 0x72, 0x47 }, // orange
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{ 0x78, 0x68, 0x7F }, // light gray
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{ 0xFF, 0x7A, 0xCF }, // pink
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{ 0x6F, 0xE6, 0x2C }, // green
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{ 0xFF, 0xF6, 0x7B }, // yellow
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{ 0x6C, 0xEE, 0xB2 }, // aqua
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{ 0xFF, 0xFF, 0xFF } // white
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};
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#define color16To32(x) ( (((x) & 0xF800) << 8) | (((x) & 0x07E0) << 5) | (((x) & 0x001F)<<3) )
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#define packColor32(x) ( (x[0] << 16) | (x[1] << 8) | (x[2]) )
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#define unpackRed(x) ( ((x) & 0xFF0000) >> 16 )
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#define unpackGreen(x) ( ((x) & 0xFF00) >> 8 )
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#define unpackBlue(x) ( ((x) & 0xFF) )
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// FIXME this blend could be optimized - and it's a dumb blend that
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// just averages RGB values individually, rather than trying to find a
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// sane blend of 2 pixels. Needs thought.
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#define blendPackedColor(x,y) ( (((unpackRed(x) + unpackRed(y))/2) << 16) + (((unpackGreen(x) + unpackGreen(y))/2) << 8) + ((unpackBlue(x) + unpackBlue(y))/2) )
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#define luminanceFromRGB(r,g,b) ( ((r)*0.2126) + ((g)*0.7152) + ((b)*0.0722) )
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SDLDisplay::SDLDisplay()
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{
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memset(videoBuffer, 0, sizeof(videoBuffer));
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driveIndicator[0] = driveIndicator[1] = true; // assume on so they will redraw the first time
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shellImage = NULL;
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d1OpenImage = d1ClosedImage = d2OpenImage = d2ClosedImage = NULL;
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appleImage = NULL;
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getImageInfoAndData(IMG_8875_SHELL, &shellWidth, &shellHeight, &shellImage);
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getImageInfoAndData(IMG_8875_D1OPEN, &driveWidth, &driveHeight, &d1OpenImage);
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getImageInfoAndData(IMG_8875_D1CLOSED, &driveWidth, &driveHeight, &d1ClosedImage);
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getImageInfoAndData(IMG_8875_D2OPEN, &driveWidth, &driveHeight, &d2OpenImage);
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getImageInfoAndData(IMG_8875_D2CLOSED, &driveWidth, &driveHeight, &d2ClosedImage);
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getImageInfoAndData(IMG_8875_APPLEBATTERY, &appleImageWidth, &appleImageHeight, &appleImage);
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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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SDL_WIDTH, SDL_HEIGHT,
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SDL_WINDOW_SHOWN|SDL_WINDOW_RESIZABLE);
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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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buffer = SDL_CreateTexture(renderer,
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SDL_PIXELFORMAT_RGB888,
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SDL_TEXTUREACCESS_STREAMING,
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SDL_WIDTH,
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SDL_HEIGHT);
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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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blit();
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SDL_RenderPresent(renderer);
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}
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void SDLDisplay::drawUIImage(uint8_t imageIdx)
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{
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switch (imageIdx) {
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case IMG_SHELL:
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drawImageOfSizeAt(shellImage, shellWidth, shellHeight, 0, 0);
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break;
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case IMG_D1OPEN:
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drawImageOfSizeAt(d1OpenImage, driveWidth, driveHeight, 4, 67);
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break;
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case IMG_D1CLOSED:
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drawImageOfSizeAt(d1ClosedImage, driveWidth, driveHeight, 4, 67);
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break;
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case IMG_D2OPEN:
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drawImageOfSizeAt(d2OpenImage, driveWidth, driveHeight, 4, 116);
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break;
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case IMG_D2CLOSED:
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drawImageOfSizeAt(d2ClosedImage, driveWidth, driveHeight, 4, 116);
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break;
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case IMG_APPLEBATTERY:
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// FIXME ***
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break;
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}
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}
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void SDLDisplay::drawDriveActivity(bool drive0, bool drive1)
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{
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if (drive0 != driveIndicator[0]) {
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printf("change d0\n");
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for (int y=0; y<LED_HEIGHT_8875; y++) {
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for (int x=0; x<LED_WIDTH_8875; x++) {
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// FIXME this isn't working, not sure why
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drawPixel(x+LED1_X_8875, y+LED1_Y_8875, 0xFF, 0, 0); ///*drive0 ?*/ 0xFA00/* : 0x0000*/);
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}
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}
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driveIndicator[0] = drive0;
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}
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if (drive1 != driveIndicator[1]) {
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for (int y=0; y<LED_HEIGHT_8875; y++) {
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for (int x=0; x<LED_WIDTH_8875; x++) {
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drawPixel(x+LED2_X_8875, y+LED2_Y_8875, drive0 ? 0xFA00 : 0x0000);
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}
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}
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driveIndicator[1] = drive1;
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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, uint16_t sizey,
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uint16_t wherex, uint16_t wherey)
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{
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const uint8_t *p = img;
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for (uint16_t y=0; y<sizey; y++) {
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for (uint16_t x=0; x<sizex; x++) {
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uint16_t v = *p++;
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v<<=8;
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v |= *p++;
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videoBuffer[(y+wherey)][(x+wherex)] = color16To32(v);
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}
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}
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}
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void SDLDisplay::blit()
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{
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uint32_t *pixels = NULL;
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int pitch = 0;
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SDL_LockTexture(buffer,
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NULL, // NULL means the *whole texture* here.
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(void **)&pixels,
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&pitch);
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// FIXME what if pitch isn't as expected? Should be width*4
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memcpy(pixels, videoBuffer, sizeof(videoBuffer));
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SDL_UnlockTexture(buffer);
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SDL_RenderCopy(renderer, buffer, NULL, NULL);
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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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if (x >= SDL_WIDTH || y >= SDL_HEIGHT) return; // make sure it's onscreen
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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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putpixel(renderer, x, y, r, g, b);
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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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if (x < SDL_WIDTH && y < SDL_HEIGHT) {
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putpixel(renderer, x, y, r, g, b);
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}
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}
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void SDLDisplay::clrScr(uint8_t coloridx)
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{
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const uint8_t *rgbptr = &loresPixelColors[0][0];
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if (coloridx <= 16)
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rgbptr = loresPixelColors[coloridx];
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uint32_t packedColor = packColor32(loresPixelColors[coloridx]);
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for (uint16_t y=0; y<SDL_HEIGHT; y++) {
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for (uint16_t x=0; x<SDL_WIDTH; x++) {
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videoBuffer[y][x] = packedColor;
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}
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}
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}
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void SDLDisplay::cachePixel(uint16_t x, uint16_t y, uint8_t color)
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{
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for (int yoff=0; yoff<2; yoff++) {
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videoBuffer[(y*2)+SCREENINSET_8875_Y+yoff][x+SCREENINSET_8875_X] = packColor32(loresPixelColors[color]);
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}
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}
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// "DoubleWide" means "please double the X because I'm in low-res width mode"
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void SDLDisplay::cacheDoubleWidePixel(uint16_t x, uint16_t y, uint8_t color)
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{
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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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videoBuffer[(y*2)+SCREENINSET_8875_Y+yoff][(x*2)+SCREENINSET_8875_X+xoff] = packColor32(loresPixelColors[color]);
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}
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}
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}
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void SDLDisplay::cacheDoubleWidePixel(uint16_t x, uint16_t y, uint32_t packedColor)
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{
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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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videoBuffer[(y*2)+SCREENINSET_8875_Y+yoff][(x*2)+SCREENINSET_8875_X+xoff] = packedColor;
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}
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}
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}
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void SDLDisplay::windowResized(uint32_t w, uint32_t h)
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{
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// Preserve the aspect ratio
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float aspectRatio = (float)w/(float)h;
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if (aspectRatio != ((float)SDL_WIDTH)/((float)SDL_HEIGHT)) {
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if (aspectRatio > ((float)SDL_WIDTH)/((float)SDL_HEIGHT)) {
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h = ((1.f * ((float)SDL_HEIGHT)) / ((float)SDL_WIDTH)) * w;
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} else {
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w = (((float)SDL_WIDTH)/((float)SDL_HEIGHT)) * h;
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}
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}
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SDL_SetWindowSize(screen, w, h);
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}
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