mirror of https://github.com/JorjBauer/aiie.git
279 lines
7.9 KiB
C++
279 lines
7.9 KiB
C++
#include <ctype.h> // isgraph
|
|
#include <linux/fb.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
#include "fb-display.h"
|
|
|
|
#include "bios-font.h"
|
|
#include "images.h"
|
|
|
|
#include "globals.h"
|
|
#include "applevm.h"
|
|
|
|
#include "apple/appleui.h"
|
|
|
|
#define SCREENINSET_X (18*2)
|
|
#define SCREENINSET_Y (13*2)
|
|
|
|
// RGB map of each of the lowres colors
|
|
const uint16_t loresPixelColors[16] = { 0x0000, // 0 black
|
|
0xC006, // 1 magenta
|
|
0x0010, // 2 dark blue
|
|
0xA1B5, // 3 purple
|
|
0x0480, // 4 dark green
|
|
0x6B4D, // 5 dark grey
|
|
0x1B9F, // 6 med blue
|
|
0x0DFD, // 7 light blue
|
|
0x92A5, // 8 brown
|
|
0xF8C5, // 9 orange
|
|
0x9555, // 10 light gray
|
|
0xFCF2, // 11 pink
|
|
0x07E0, // 12 green
|
|
0xFFE0, // 13 yellow
|
|
0x87F0, // 14 aqua
|
|
0xFFFF // 15 white
|
|
};
|
|
|
|
FBDisplay::FBDisplay()
|
|
{
|
|
memset((void *)videoBuffer, 0, sizeof(videoBuffer));
|
|
|
|
fb_fd = open("/dev/fb0",O_RDWR);
|
|
//Get variable screen information
|
|
ioctl(fb_fd, FBIOGET_VSCREENINFO, &vinfo);
|
|
|
|
printf("bpp: %d\n", vinfo.bits_per_pixel);
|
|
|
|
//Get fixed screen information
|
|
ioctl(fb_fd, FBIOGET_FSCREENINFO, &finfo);
|
|
|
|
// This shouldn't be necessary, but I'm not seeing FBIOPUT working yet
|
|
system("fbset -xres 640 -yres 480 -depth 16");
|
|
|
|
// request what we want, rather than hoping we got it
|
|
vinfo.width = 640;
|
|
vinfo.height = 480;
|
|
vinfo.bits_per_pixel = 16;
|
|
int ret = ioctl(fb_fd, FBIOPUT_VSCREENINFO, &vinfo);
|
|
printf("Return from FBIOPUT_VSCREENINFO: %d\n", ret);
|
|
|
|
ret = ioctl(fb_fd, FBIOGET_VSCREENINFO, &vinfo);
|
|
printf("Return from FBIOGET_VSCREENINFO: %d\n", ret);
|
|
|
|
printf("Screen is %d x %d @ %d\n", vinfo.width, vinfo.height, vinfo.bits_per_pixel);
|
|
|
|
screensize = vinfo.yres_virtual * finfo.line_length;
|
|
fbp = (uint8_t *)mmap(0, screensize, PROT_READ | PROT_WRITE, MAP_SHARED, fb_fd, (off_t)0);
|
|
}
|
|
|
|
FBDisplay::~FBDisplay()
|
|
{
|
|
}
|
|
|
|
void FBDisplay::redraw()
|
|
{
|
|
// primarily for the device, where it's in and out of the
|
|
// bios. Draws the background image.
|
|
g_ui->drawStaticUIElement(UIeOverlay);
|
|
|
|
if (g_vm && g_ui) {
|
|
// determine whether or not a disk is inserted & redraw each drive
|
|
g_ui->drawOnOffUIElement(UIeDisk1_state, ((AppleVM *)g_vm)->DiskName(0)[0] == '\0');
|
|
g_ui->drawOnOffUIElement(UIeDisk2_state, ((AppleVM *)g_vm)->DiskName(1)[0] == '\0');
|
|
}
|
|
}
|
|
|
|
// drawImageOfSizeAt will horizontally scale out the image b/c the
|
|
// images themselves aren't aware of the double resolution. This is an
|
|
// inconsistency that probably should be addressed. FIXME?
|
|
void FBDisplay::drawImageOfSizeAt(const uint8_t *img,
|
|
uint16_t sizex, uint8_t sizey,
|
|
uint16_t wherex, uint8_t wherey)
|
|
{
|
|
for (uint8_t y=0; y<sizey; y++) {
|
|
for (uint16_t x=0; x<sizex; x++) {
|
|
const uint8_t *p = &img[(y * sizex + x)*3];
|
|
drawPixel((x+wherex)*2, y+wherey, p[0], p[1], p[2]);
|
|
drawPixel((x+wherex)*2+1, y+wherey, p[0], p[1], p[2]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void FBDisplay::blit(AiieRect r)
|
|
{
|
|
for (uint16_t y=r.top*2; y<r.bottom*2; y++) {
|
|
for (uint16_t x=r.left*2; x<r.right*2; x++) {
|
|
uint8_t colorIdx = videoBuffer[y*FBDISPLAY_WIDTH+x];
|
|
|
|
uint16_t color;
|
|
color = loresPixelColors[colorIdx];
|
|
|
|
if (g_displayType == m_monochrome) {
|
|
// Tricky. Grayscale from luminance. Turn each value into a
|
|
// 5-bit value, so they have equal weights; then calculate
|
|
// luminance; then turn that back in to 5/6/5.
|
|
float fv = (0.2125 * ((color & 0xF800) >> 11));
|
|
fv += (0.7154 * ((color & 0x07E0) >> 6)); // 6 bits of green
|
|
// turned in to 5
|
|
// bits
|
|
fv += (0.0721 * ((color & 0x001F)));
|
|
|
|
color = ((uint16_t)fv << 6);
|
|
}
|
|
else if (g_displayType == m_blackAndWhite) {
|
|
// Tricky. Grayscale from luminance. Turn each value into a
|
|
// 5-bit value, so they have equal weights; then calculate
|
|
// luminance; then turn that back in to 5/6/5.
|
|
float fv = (0.2125 * ((color & 0xF800) >> 11));
|
|
fv += (0.7154 * ((color & 0x07E0) >> 6)); // 6 bits of green
|
|
// turned in to 5
|
|
// bits
|
|
fv += (0.0721 * ((color & 0x001F)));
|
|
|
|
color = ((uint16_t)fv << 11) | ((uint16_t)fv << 6) | ((uint16_t)fv);
|
|
}
|
|
|
|
|
|
long location = (x+vinfo.xoffset+SCREENINSET_X) * (vinfo.bits_per_pixel/8) + (y+vinfo.yoffset+SCREENINSET_Y) * finfo.line_length;
|
|
*((uint16_t*)(fbp + location)) = color;
|
|
}
|
|
}
|
|
|
|
if (overlayMessage[0]) {
|
|
drawString(M_SELECTDISABLED, 1, 240 - 16 - 12, overlayMessage);
|
|
}
|
|
|
|
}
|
|
|
|
inline uint16_t _888to565(uint8_t r, uint8_t g, uint8_t b)
|
|
{
|
|
return ( (r & 0xF8) << 8 |
|
|
( (g & 0xFC) << 3) |
|
|
( (b & 0xF8) >> 3 ) );
|
|
}
|
|
|
|
void FBDisplay::drawUIPixel(uint16_t x, uint16_t y, uint16_t color)
|
|
{
|
|
drawPixel(x*2, y, color);
|
|
drawPixel(x*2+1, y, color);
|
|
}
|
|
|
|
// external method. Doubles vertically.
|
|
void FBDisplay::drawPixel(uint16_t x, uint16_t y, uint16_t color)
|
|
{
|
|
long location = (x+vinfo.xoffset) * (vinfo.bits_per_pixel/8) + (y*2+vinfo.yoffset) * finfo.line_length;
|
|
*((uint16_t*)(fbp + location)) = color;
|
|
location = (x+vinfo.xoffset) * (vinfo.bits_per_pixel/8) + (y*2+1+vinfo.yoffset) * finfo.line_length;
|
|
*((uint16_t*)(fbp + location)) = color;
|
|
}
|
|
|
|
// external method. Doubles vertically.
|
|
void FBDisplay::drawPixel(uint16_t x, uint16_t y, uint8_t r, uint8_t g, uint8_t b)
|
|
{
|
|
long location = (x+vinfo.xoffset) * (vinfo.bits_per_pixel/8) + (y*2+vinfo.yoffset) * finfo.line_length;
|
|
*((uint16_t*)(fbp + location)) = _888to565(r,g,b);
|
|
location = (x+vinfo.xoffset) * (vinfo.bits_per_pixel/8) + (y*2+1+vinfo.yoffset) * finfo.line_length;
|
|
*((uint16_t*)(fbp + location)) = _888to565(r,g,b);
|
|
}
|
|
|
|
void FBDisplay::drawCharacter(uint8_t mode, uint16_t x, uint8_t y, char c)
|
|
{
|
|
int8_t xsize = 8,
|
|
ysize = 0x0C,
|
|
offset = 0x20;
|
|
uint16_t temp;
|
|
|
|
c -= offset;// font starts with a space
|
|
|
|
uint16_t offPixel, onPixel;
|
|
switch (mode) {
|
|
case M_NORMAL:
|
|
onPixel = 0xFFFF;
|
|
offPixel = 0x0010;
|
|
break;
|
|
case M_SELECTED:
|
|
onPixel = 0x0000;
|
|
offPixel = 0xFFFF;
|
|
break;
|
|
case M_DISABLED:
|
|
default:
|
|
onPixel = 0x7BEF;
|
|
offPixel = 0x0000;
|
|
break;
|
|
case M_SELECTDISABLED:
|
|
onPixel = 0x7BEF;
|
|
offPixel = 0xFFE0;
|
|
break;
|
|
}
|
|
|
|
temp=(c*ysize);
|
|
for (int8_t y_off = 0; y_off <= ysize; y_off++) {
|
|
uint8_t ch = BiosFont[temp];
|
|
for (int8_t x_off = 0; x_off <= xsize; x_off++) {
|
|
if (ch & (1 << (7-x_off))) {
|
|
drawPixel(x + x_off, y + y_off, onPixel);
|
|
} else {
|
|
drawPixel(x + x_off, y + y_off, offPixel);
|
|
}
|
|
}
|
|
temp++;
|
|
}
|
|
|
|
}
|
|
|
|
void FBDisplay::drawString(uint8_t mode, uint16_t x, uint8_t y, const char *str)
|
|
{
|
|
int8_t xsize = 8; // width of a char in this font
|
|
|
|
for (int8_t i=0; i<strlen(str); i++) {
|
|
drawCharacter(mode, x, y, str[i]);
|
|
x += xsize; // fixme: any inter-char spacing?
|
|
}
|
|
}
|
|
|
|
void FBDisplay::flush()
|
|
{
|
|
}
|
|
|
|
void FBDisplay::clrScr()
|
|
{
|
|
for (uint8_t y=0; y<vinfo.height/2; y++) { // /2 because drawPixel doubles vertically
|
|
for (uint16_t x=0; x<vinfo.width; x++) {
|
|
drawPixel(x, y, 0x0000);
|
|
}
|
|
}
|
|
}
|
|
|
|
// All of these double vertically b/c we're 480, but the original is 240
|
|
void FBDisplay::cachePixel(uint16_t x, uint16_t y, uint8_t color)
|
|
{
|
|
videoBuffer[y*2*FBDISPLAY_WIDTH+x] = color;
|
|
videoBuffer[((y*2)+1)*FBDISPLAY_WIDTH+x] = color;
|
|
}
|
|
|
|
// "DoubleWide" means "please double the X because I'm in low-res width mode"
|
|
void FBDisplay::cacheDoubleWidePixel(uint16_t x, uint16_t y, uint8_t color)
|
|
{
|
|
videoBuffer[y*2*FBDISPLAY_WIDTH+x*2] = color;
|
|
videoBuffer[y*2*FBDISPLAY_WIDTH+x*2+1] = color;
|
|
|
|
videoBuffer[(y*2+1)*FBDISPLAY_WIDTH+x*2] = color;
|
|
videoBuffer[(y*2+1)*FBDISPLAY_WIDTH+x*2+1] = color;
|
|
}
|
|
|
|
void FBDisplay::cache2DoubleWidePixels(uint16_t x, uint16_t y, uint8_t colorB, uint8_t colorA)
|
|
{
|
|
videoBuffer[y*2*FBDISPLAY_WIDTH+x*2] = colorA;
|
|
videoBuffer[y*2*FBDISPLAY_WIDTH+x*2+1] = colorA;
|
|
|
|
videoBuffer[y*2*FBDISPLAY_WIDTH+x*2+2] = colorB;
|
|
videoBuffer[y*2*FBDISPLAY_WIDTH+x*2+3] = colorB;
|
|
|
|
videoBuffer[(y*2+1)*FBDISPLAY_WIDTH+x*2] = colorA;
|
|
videoBuffer[(y*2+1)*FBDISPLAY_WIDTH+x*2+1] = colorA;
|
|
|
|
videoBuffer[(y*2+1)*FBDISPLAY_WIDTH+x*2+2] = colorB;
|
|
videoBuffer[(y*2+1)*FBDISPLAY_WIDTH+x*2+3] = colorB;
|
|
}
|