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frodo-wii/Src/Display_SDL.h

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/*
* Display_SDL.h - C64 graphics display, emulator window handling,
* SDL specific stuff
*
* Frodo (C) 1994-1997,2002-2009 Christian Bauer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "C64.h"
#include "SAM.h"
#include "Version.h"
#include "CIA.h"
#include <SDL.h>
#if defined(GEKKO)
#include <wiiuse/wpad.h>
#endif
// Display surface
SDL_Surface *screen = NULL;
SDL_Surface *real_screen = NULL;
// Keyboard
static bool num_locked = false;
#if defined(DO_ERROR_BLINK)
// For LED error blinking
static C64Display *c64_disp;
static struct sigaction pulse_sa;
static itimerval pulse_tv;
#endif
// SDL joysticks
static SDL_Joystick *joy[2] = {NULL, NULL};
// Colors for speedometer/drive LEDs
enum {
black = 0,
white = 1,
fill_gray = 16,
shine_gray = 17,
shadow_gray = 18,
red = 19,
green = 20,
PALETTE_SIZE = 21
};
/*
C64 keyboard matrix:
Bit 7 6 5 4 3 2 1 0
0 CUD F5 F3 F1 F7 CLR RET DEL
1 SHL E S Z 4 A W 3
2 X T F C 6 D R 5
3 V U H B 8 G Y 7
4 N O K M 0 J I 9
5 , @ : . - L P +
6 / ^ = SHR HOM ; * <20>
7 R/S Q C= SPC 2 CTL <- 1
*/
#define MATRIX(a,b) (((a) << 3) | (b))
/*
* Open window
*/
int init_graphics(void)
{
Uint32 rmask, gmask, bmask, amask;
/* SDL interprets each pixel as a 32-bit number, so our masks must depend
on the endianness (byte order) of the machine */
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
rmask = 0xff000000;
gmask = 0x00ff0000;
bmask = 0x0000ff00;
amask = 0x000000ff;
#else
rmask = 0x000000ff;
gmask = 0x0000ff00;
bmask = 0x00ff0000;
amask = 0xff000000;
#endif
// Open window
SDL_ShowCursor(SDL_DISABLE);
screen = SDL_CreateRGBSurface(SDL_SWSURFACE, DISPLAY_X, DISPLAY_Y + 17, 8,
rmask, gmask, bmask, amask);
if (!screen)
{
fprintf(stderr, "Cannot allocate surface to draw on: %s\n",
SDL_GetError());
exit(1);
}
real_screen = SDL_SetVideoMode(FULL_DISPLAY_X, FULL_DISPLAY_Y, 8,
SDL_DOUBLEBUF);
if (!real_screen)
{
fprintf(stderr, "\n\nCannot initialize video: %s\n", SDL_GetError());
exit(1);
}
return 1;
}
/*
* Display constructor
*/
C64Display::C64Display(C64 *the_c64) : TheC64(the_c64)
{
quit_requested = false;
speedometer_string[0] = 0;
printf("ssof2 %d:%d\n", sizeof(C64Display), sizeof(C64));
// Open window
SDL_WM_SetCaption(VERSION_STRING, "Frodo");
// LEDs off
for (int i=0; i<4; i++)
led_state[i] = old_led_state[i] = LED_OFF;
#if defined(DO_ERROR_BLINK)
// Start timer for LED error blinking
c64_disp = this;
pulse_sa.sa_handler = (void (*)(int))pulse_handler;
pulse_sa.sa_flags = SA_RESTART;
sigemptyset(&pulse_sa.sa_mask);
sigaction(SIGALRM, &pulse_sa, NULL);
pulse_tv.it_interval.tv_sec = 0;
pulse_tv.it_interval.tv_usec = 400000;
pulse_tv.it_value.tv_sec = 0;
pulse_tv.it_value.tv_usec = 400000;
setitimer(ITIMER_REAL, &pulse_tv, NULL);
#endif
}
/*
* Display destructor
*/
C64Display::~C64Display()
{
SDL_Quit();
}
/*
* Prefs may have changed
*/
void C64Display::NewPrefs(Prefs *prefs)
{
}
/*
* Redraw bitmap
*/
void C64Display::Update(void)
{
if (ThePrefs.DisplayOption == 0) {
const int x_border = (DISPLAY_X - FULL_DISPLAY_X / 2) / 2;
const int y_border = (DISPLAY_Y - FULL_DISPLAY_Y / 2) / 2;
Uint8 *src_pixels = (Uint8*)screen->pixels;
Uint8 *dst_pixels = (Uint8*)real_screen->pixels;
const Uint16 src_pitch = screen->pitch;
const Uint16 dst_pitch = real_screen->pitch;
/* Center, double size */
for (int y = y_border; y < (FULL_DISPLAY_Y/2) + y_border; y++)
{
for (int x = x_border; x < (FULL_DISPLAY_X / 2 + x_border); x++)
{
int src_off = y * src_pitch + x;
int dst_off = (y * 2 - y_border * 2) * dst_pitch + (x * 2 - x_border * 2);
Uint8 v = src_pixels[src_off];
dst_pixels[ dst_off ] = v;
dst_pixels[ dst_off + 1 ] = v;
dst_pixels[ dst_off + dst_pitch ] = v;
dst_pixels[ dst_off + dst_pitch + 1] = v;
}
}
}
else {
SDL_Rect srcrect = {0, 0, DISPLAY_X, DISPLAY_Y};
SDL_Rect dstrect = {0, 0, FULL_DISPLAY_X, FULL_DISPLAY_Y};
/* Stretch */
SDL_SoftStretch(screen, &srcrect, real_screen, &dstrect);
}
SDL_Flip(real_screen);
}
/*
* Draw string into surface using the C64 ROM font
*/
void C64Display::draw_string(SDL_Surface *s, int x, int y, const char *str, uint8 front_color, uint8 back_color)
{
uint8 *pb = (uint8 *)s->pixels + s->pitch*y + x;
char c;
while ((c = *str++) != 0) {
uint8 *q = TheC64->Char + c*8 + 0x800;
uint8 *p = pb;
for (int y=0; y<8; y++) {
uint8 v = *q++;
p[0] = (v & 0x80) ? front_color : back_color;
p[1] = (v & 0x40) ? front_color : back_color;
p[2] = (v & 0x20) ? front_color : back_color;
p[3] = (v & 0x10) ? front_color : back_color;
p[4] = (v & 0x08) ? front_color : back_color;
p[5] = (v & 0x04) ? front_color : back_color;
p[6] = (v & 0x02) ? front_color : back_color;
p[7] = (v & 0x01) ? front_color : back_color;
p += s->pitch;
}
pb += 8;
}
}
/*
* LED error blink
*/
#if defined(DO_ERROR_BLINK)
void C64Display::pulse_handler(...)
{
for (int i=0; i<4; i++)
switch (c64_disp->led_state[i]) {
case LED_ERROR_ON:
c64_disp->led_state[i] = LED_ERROR_OFF;
break;
case LED_ERROR_OFF:
c64_disp->led_state[i] = LED_ERROR_ON;
break;
}
}
#endif
/*
* Draw speedometer
*/
void C64Display::Speedometer(int speed)
{
static int delay = 0;
if (delay >= 20) {
delay = 0;
sprintf(speedometer_string, "%d%%", speed);
} else
delay++;
}
/*
* Return pointer to bitmap data
*/
uint8 *C64Display::BitmapBase(void)
{
return (uint8 *)screen->pixels;
}
/*
* Return number of bytes per row
*/
int C64Display::BitmapXMod(void)
{
return screen->pitch;
}
void C64Display::FakeKeyPress(int kc, bool shift, uint8 *CIA_key_matrix,
uint8 *CIA_rev_matrix)
{
// Clear matrices
for (int i = 0; i < 8; i ++)
{
CIA_key_matrix[i] = 0xFF;
CIA_rev_matrix[i] = 0xFF;
}
if (shift)
{
CIA_key_matrix[6] &= 0xef;
CIA_rev_matrix[4] &= 0xbf;
}
if (kc != -1)
{
int c64_byte, c64_bit, shifted;
c64_byte = kc >> 3;
c64_bit = kc & 7;
shifted = kc & 128;
c64_byte &= 7;
if (shifted)
{
CIA_key_matrix[6] &= 0xef;
CIA_rev_matrix[4] &= 0xbf;
}
CIA_key_matrix[c64_byte] &= ~(1 << c64_bit);
CIA_rev_matrix[c64_bit] &= ~(1 << c64_byte);
}
}
void C64Display::UpdateKeyMatrix(int c64_key, bool key_up, uint8 *key_matrix, uint8 *rev_matrix)
{
bool shifted = c64_key & 0x80;
int c64_byte = (c64_key >> 3) & 7;
int c64_bit = c64_key & 7;
if (key_up) {
if (shifted) {
key_matrix[6] |= 0x10;
rev_matrix[4] |= 0x40;
}
key_matrix[c64_byte] |= (1 << c64_bit);
rev_matrix[c64_bit] |= (1 << c64_byte);
} else {
if (shifted) {
key_matrix[6] &= 0xef;
rev_matrix[4] &= 0xbf;
}
key_matrix[c64_byte] &= ~(1 << c64_bit);
rev_matrix[c64_bit] &= ~(1 << c64_byte);
}
}
/*
* Poll the keyboard
*/
void C64Display::TranslateKey(SDLKey key, bool key_up, uint8 *key_matrix,
uint8 *rev_matrix, uint8 *joystick)
{
int c64_key = -1;
switch (key) {
case SDLK_a: c64_key = MATRIX(1,2); break;
case SDLK_b: c64_key = MATRIX(3,4); break;
case SDLK_c: c64_key = MATRIX(2,4); break;
case SDLK_d: c64_key = MATRIX(2,2); break;
case SDLK_e: c64_key = MATRIX(1,6); break;
case SDLK_f: c64_key = MATRIX(2,5); break;
case SDLK_g: c64_key = MATRIX(3,2); break;
case SDLK_h: c64_key = MATRIX(3,5); break;
case SDLK_i: c64_key = MATRIX(4,1); break;
case SDLK_j: c64_key = MATRIX(4,2); break;
case SDLK_k: c64_key = MATRIX(4,5); break;
case SDLK_l: c64_key = MATRIX(5,2); break;
case SDLK_m: c64_key = MATRIX(4,4); break;
case SDLK_n: c64_key = MATRIX(4,7); break;
case SDLK_o: c64_key = MATRIX(4,6); break;
case SDLK_p: c64_key = MATRIX(5,1); break;
case SDLK_q: c64_key = MATRIX(7,6); break;
case SDLK_r: c64_key = MATRIX(2,1); break;
case SDLK_s: c64_key = MATRIX(1,5); break;
case SDLK_t: c64_key = MATRIX(2,6); break;
case SDLK_u: c64_key = MATRIX(3,6); break;
case SDLK_v: c64_key = MATRIX(3,7); break;
case SDLK_w: c64_key = MATRIX(1,1); break;
case SDLK_x: c64_key = MATRIX(2,7); break;
case SDLK_y: c64_key = MATRIX(3,1); break;
case SDLK_z: c64_key = MATRIX(1,4); break;
case SDLK_0: c64_key = MATRIX(4,3); break;
case SDLK_1: c64_key = MATRIX(7,0); break;
case SDLK_2: c64_key = MATRIX(7,3); break;
case SDLK_3: c64_key = MATRIX(1,0); break;
case SDLK_4: c64_key = MATRIX(1,3); break;
case SDLK_5: c64_key = MATRIX(2,0); break;
case SDLK_6: c64_key = MATRIX(2,3); break;
case SDLK_7: c64_key = MATRIX(3,0); break;
case SDLK_8: c64_key = MATRIX(3,3); break;
case SDLK_9: c64_key = MATRIX(4,0); break;
case SDLK_SPACE: c64_key = MATRIX(7,4); break;
case SDLK_BACKQUOTE: c64_key = MATRIX(7,1); break;
case SDLK_BACKSLASH: c64_key = MATRIX(6,6); break;
case SDLK_COMMA: c64_key = MATRIX(5,7); break;
case SDLK_PERIOD: c64_key = MATRIX(5,4); break;
case SDLK_MINUS: c64_key = MATRIX(5,0); break;
case SDLK_EQUALS: c64_key = MATRIX(5,3); break;
case SDLK_LEFTBRACKET: c64_key = MATRIX(5,6); break;
case SDLK_RIGHTBRACKET: c64_key = MATRIX(6,1); break;
case SDLK_SEMICOLON: c64_key = MATRIX(5,5); break;
case SDLK_QUOTE: c64_key = MATRIX(6,2); break;
case SDLK_SLASH: c64_key = MATRIX(6,7); break;
case SDLK_ESCAPE: c64_key = MATRIX(7,7); break;
case SDLK_RETURN: c64_key = MATRIX(0,1); break;
case SDLK_BACKSPACE: case SDLK_DELETE: c64_key = MATRIX(0,0); break;
case SDLK_INSERT: c64_key = MATRIX(6,3); break;
case SDLK_HOME: c64_key = MATRIX(6,3); break;
case SDLK_END: c64_key = MATRIX(6,0); break;
case SDLK_PAGEUP: c64_key = MATRIX(6,0); break;
case SDLK_PAGEDOWN: c64_key = MATRIX(6,5); break;
case SDLK_LCTRL: c64_key = 0x10 | 0x40; break;
case SDLK_TAB: c64_key = MATRIX(7,2); break;
case SDLK_RCTRL: c64_key = MATRIX(7,5); break;
case SDLK_LSHIFT: c64_key = MATRIX(1,7); break;
case SDLK_RSHIFT: c64_key = MATRIX(6,4); break;
case SDLK_LALT: case SDLK_LMETA: c64_key = MATRIX(7,5); break;
case SDLK_RALT: case SDLK_RMETA: c64_key = MATRIX(7,5); break;
case SDLK_UP: c64_key = 0x01 | 0x40; break;
case SDLK_DOWN: c64_key = 0x02 | 0x40; break;
case SDLK_LEFT: c64_key = 0x04 | 0x40; break;
case SDLK_RIGHT: c64_key = 0x08 | 0x40; break;
case SDLK_F1: c64_key = MATRIX(0,4); break;
case SDLK_F2: c64_key = MATRIX(0,4) | 0x80; break;
case SDLK_F3: c64_key = MATRIX(0,5); break;
case SDLK_F4: c64_key = MATRIX(0,5) | 0x80; break;
case SDLK_F5: c64_key = MATRIX(0,6); break;
case SDLK_F6: c64_key = MATRIX(0,6) | 0x80; break;
case SDLK_F7: c64_key = MATRIX(0,3); break;
case SDLK_F8: c64_key = MATRIX(0,3) | 0x80; break;
case SDLK_KP0: case SDLK_KP5: c64_key = 0x10 | 0x40; break;
case SDLK_KP1: c64_key = 0x06 | 0x40; break;
case SDLK_KP2: c64_key = 0x02 | 0x40; break;
case SDLK_KP3: c64_key = 0x0a | 0x40; break;
case SDLK_KP4: c64_key = 0x04 | 0x40; break;
case SDLK_KP6: c64_key = 0x08 | 0x40; break;
case SDLK_KP7: c64_key = 0x05 | 0x40; break;
case SDLK_KP8: c64_key = 0x01 | 0x40; break;
case SDLK_KP9: c64_key = 0x09 | 0x40; break;
case SDLK_KP_DIVIDE: c64_key = MATRIX(6,7); break;
case SDLK_KP_ENTER: c64_key = MATRIX(0,1); break;
default: break;
}
if (c64_key < 0)
return;
// Handle joystick emulation
if (c64_key & 0x40) {
c64_key &= 0x1f;
if (key_up)
*joystick |= c64_key;
else
*joystick &= ~c64_key;
return;
}
this->UpdateKeyMatrix(c64_key, key_up, key_matrix, rev_matrix);
}
void C64Display::PollKeyboard(uint8 *key_matrix, uint8 *rev_matrix, uint8 *joystick)
{
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch (event.type) {
// Key pressed
case SDL_KEYDOWN:
switch (event.key.keysym.sym) {
case SDLK_F9: // F9: Invoke SAM
SAM(TheC64);
break;
case SDLK_F10: // F10: Quit
quit_requested = true;
break;
case SDLK_F11: // F11: NMI (Restore)
TheC64->NMI();
break;
case SDLK_F12: // F12: Reset
TheC64->Reset();
break;
case SDLK_HOME: // Home: Pause and enter menu
TheC64->enter_menu();
break;
case SDLK_SCROLLOCK:
num_locked = true;
break;
case SDLK_KP_PLUS: // '+' on keypad: Increase SkipFrames
ThePrefs.SkipFrames++;
break;
case SDLK_KP_MINUS: // '-' on keypad: Decrease SkipFrames
if (ThePrefs.SkipFrames > 1)
ThePrefs.SkipFrames--;
break;
case SDLK_KP_MULTIPLY: // '*' on keypad: Toggle speed limiter
ThePrefs.LimitSpeed = !ThePrefs.LimitSpeed;
break;
default:
TranslateKey(event.key.keysym.sym, false, key_matrix, rev_matrix, joystick);
break;
}
break;
// Key released
case SDL_KEYUP:
if (event.key.keysym.sym == SDLK_SCROLLOCK)
num_locked = false;
else
TranslateKey(event.key.keysym.sym, true, key_matrix, rev_matrix, joystick);
break;
// Quit Frodo
case SDL_QUIT:
quit_requested = true;
break;
}
}
}
/*
* Check if NumLock is down (for switching the joystick keyboard emulation)
*/
bool C64Display::NumLock(void)
{
return num_locked;
}
/*
* Open/close joystick drivers given old and new state of
* joystick preferences
*/
void C64::open_close_joystick(int port, int oldjoy, int newjoy)
{
#if !defined(GEKKO)
if (oldjoy != newjoy) {
joy_minx[port] = joy_miny[port] = 32767; // Reset calibration
joy_maxx[port] = joy_maxy[port] = -32768;
if (newjoy) {
joy[port] = SDL_JoystickOpen(newjoy - 1);
if (joy[port] == NULL)
fprintf(stderr, "Couldn't open joystick %d\n", port + 1);
} else {
if (joy[port]) {
SDL_JoystickClose(joy[port]);
joy[port] = NULL;
}
}
}
#endif
}
void C64::open_close_joysticks(int oldjoy1, int oldjoy2, int newjoy1, int newjoy2)
{
open_close_joystick(0, oldjoy1, newjoy1);
open_close_joystick(1, oldjoy2, newjoy2);
}
/*
* Poll joystick port, return CIA mask
*/
uint8 C64::poll_joystick(int port)
{
uint8 j = 0xff;
#ifdef GEKKO
int extra_keys[N_WIIMOTE_BINDINGS];
int controller = port;
WPADData *wpad, *wpad_other;
Uint32 held, held_other, held_classic, held_classic_other;
if (ThePrefs.JoystickSwap)
controller = !port;
held_classic = held_classic_other = 0;
wpad = WPAD_Data(controller);
wpad_other = WPAD_Data(!controller);
held = wpad->btns_h;
held_other = wpad_other->btns_h;
// Check classic controller as well
if (wpad->exp.type == WPAD_EXP_CLASSIC)
held_classic = wpad->exp.classic.btns_held;
if (wpad_other->exp.type == WPAD_EXP_CLASSIC)
held_classic_other = wpad_other->exp.classic.btns_held;
if ( (held & WPAD_BUTTON_UP) || (held_classic & CLASSIC_CTRL_BUTTON_LEFT) )
j &= 0xfb; // Left
if ( (held & WPAD_BUTTON_DOWN) || (held_classic & CLASSIC_CTRL_BUTTON_RIGHT) )
j &= 0xf7; // Right
if ( (held & WPAD_BUTTON_RIGHT) || (held_classic & CLASSIC_CTRL_BUTTON_UP) )
j &= 0xfe; // Up
if ( (held & WPAD_BUTTON_LEFT) || (held_classic & CLASSIC_CTRL_BUTTON_DOWN) )
j &= 0xfd; // Down
if ( (held & WPAD_BUTTON_2) || (held_classic & CLASSIC_CTRL_BUTTON_A) )
j &= 0xef; // Button
if ( (held & WPAD_BUTTON_HOME) || (held_classic & CLASSIC_CTRL_BUTTON_HOME) )
TheC64->enter_menu();
extra_keys[WIIMOTE_A] = (held | held_other) & WPAD_BUTTON_A;
extra_keys[WIIMOTE_B] = (held | held_other) & WPAD_BUTTON_B;
extra_keys[WIIMOTE_PLUS] = (held | held_other) & WPAD_BUTTON_PLUS;
extra_keys[WIIMOTE_MINUS] = (held | held_other) & WPAD_BUTTON_MINUS;
extra_keys[WIIMOTE_1] = (held | held_other) & WPAD_BUTTON_1;
/* Classic buttons (might not be connected) */
extra_keys[CLASSIC_X] = (held_classic | held_classic_other) & CLASSIC_CTRL_BUTTON_X;
extra_keys[CLASSIC_Y] = (held_classic | held_classic_other) & CLASSIC_CTRL_BUTTON_Y;
extra_keys[CLASSIC_B] = (held_classic | held_classic_other) & CLASSIC_CTRL_BUTTON_B;
extra_keys[CLASSIC_L] = (held_classic | held_classic_other) & CLASSIC_CTRL_BUTTON_FULL_L;
extra_keys[CLASSIC_R] = (held_classic | held_classic_other) & CLASSIC_CTRL_BUTTON_FULL_R;
extra_keys[CLASSIC_ZL] = (held_classic | held_classic_other) & CLASSIC_CTRL_BUTTON_ZL;
extra_keys[CLASSIC_ZR] = (held_classic | held_classic_other) & CLASSIC_CTRL_BUTTON_ZR;
extra_keys[WIIMOTE_PLUS] = (held_classic | held_classic_other) & CLASSIC_CTRL_BUTTON_MINUS;
extra_keys[WIIMOTE_MINUS] = (held_classic | held_classic_other) & CLASSIC_CTRL_BUTTON_PLUS;
for (int i = 0; i < N_WIIMOTE_BINDINGS; i++)
{
int kc = ThePrefs.JoystickKeyBinding[i];
if ( kc < 0 )
continue;
if (extra_keys[i])
TheDisplay->UpdateKeyMatrix(kc, false,
TheCIA1->KeyMatrix, TheCIA1->RevMatrix);
else
TheDisplay->UpdateKeyMatrix(kc, true,
TheCIA1->KeyMatrix, TheCIA1->RevMatrix);
}
return j;
#else
if (port == 0 && (joy[0] || joy[1]))
SDL_JoystickUpdate();
if (joy[port]) {
int x = SDL_JoystickGetAxis(joy[port], 0), y = SDL_JoystickGetAxis(joy[port], 1);
if (x > joy_maxx[port])
joy_maxx[port] = x;
if (x < joy_minx[port])
joy_minx[port] = x;
if (y > joy_maxy[port])
joy_maxy[port] = y;
if (y < joy_miny[port])
joy_miny[port] = y;
if (joy_maxx[port] - joy_minx[port] < 100 || joy_maxy[port] - joy_miny[port] < 100)
return 0xff;
if (x < (joy_minx[port] + (joy_maxx[port]-joy_minx[port])/3))
j &= 0xfb; // Left
else if (x > (joy_minx[port] + 2*(joy_maxx[port]-joy_minx[port])/3))
j &= 0xf7; // Right
if (y < (joy_miny[port] + (joy_maxy[port]-joy_miny[port])/3))
j &= 0xfe; // Up
else if (y > (joy_miny[port] + 2*(joy_maxy[port]-joy_miny[port])/3))
j &= 0xfd; // Down
if (SDL_JoystickGetButton(joy[port], 0))
j &= 0xef; // Button
}
return j;
#endif
}
/*
* Allocate C64 colors
*/
void C64Display::InitColors(uint8 *colors)
{
SDL_Color palette[PALETTE_SIZE];
for (int i=0; i<16; i++) {
palette[i].r = palette_red[i];
palette[i].g = palette_green[i];
palette[i].b = palette_blue[i];
}
palette[fill_gray].r = palette[fill_gray].g = palette[fill_gray].b = 0xd0;
palette[shine_gray].r = palette[shine_gray].g = palette[shine_gray].b = 0xf0;
palette[shadow_gray].r = palette[shadow_gray].g = palette[shadow_gray].b = 0x80;
palette[red].r = 0xf0;
palette[red].g = palette[red].b = 0;
palette[green].g = 0xf0;
palette[green].r = palette[green].b = 0;
SDL_SetColors(screen, palette, 0, PALETTE_SIZE);
SDL_SetColors(real_screen, palette, 0, PALETTE_SIZE);
for (int i=0; i<256; i++)
colors[i] = i & 0x0f;
}
/*
* Show a requester (error message)
*/
long int ShowRequester(const char *a, const char *b, const char *)
{
printf("%s: %s\n", a, b);
return 1;
}
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