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- Adding blinky text to the ENDOOM screen.

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SVN r507 (trunk)
This commit is contained in:
Randy Heit 2007-03-29 00:35:34 +00:00
parent 1f242fa79e
commit 97ad5a0d6b
3 changed files with 181 additions and 125 deletions
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3
docs/rh-log.txt
View file

@ -1,3 +1,6 @@
March 28, 2007
- Adding blinky text to the ENDOOM screen.
March 24, 2007
- Changed MakeKey's hash algorithm from a CRC32 to Paul Hsieh's SuperFastHash.

228
src/c_dispatch.cpp
View file

@ -261,128 +261,128 @@ static int ListActionCommands (const char *pattern)
return count;
}
/* ======================================================================== */
/* By Paul Hsieh (C) 2004, 2005. Covered under the Paul Hsieh derivative
license. See:
http://www.azillionmonkeys.com/qed/weblicense.html for license details.
http://www.azillionmonkeys.com/qed/hash.html */
#undef get16bits
#if (defined(__GNUC__) && defined(__i386__)) || defined(__WATCOMC__) \
|| defined(_MSC_VER) || defined (__BORLANDC__) || defined (__TURBOC__)
#define get16bits(d) (*((const WORD *) (d)))
#endif
#if !defined (get16bits)
#define get16bits(d) ((((DWORD)(((const BYTE *)(d))[1])) << 8)\
+(DWORD)(((const BYTE *)(d))[0]) )
#endif
DWORD SuperFastHash (const char *data, size_t len)
{
DWORD hash = 0, tmp;
size_t rem;
if (len == 0 || data == NULL) return 0;
rem = len & 3;
len >>= 2;
/* Main loop */
for (;len > 0; len--)
{
hash += get16bits (data);
tmp = (get16bits (data+2) << 11) ^ hash;
hash = (hash << 16) ^ tmp;
data += 2*sizeof (WORD);
hash += hash >> 11;
}
/* Handle end cases */
switch (rem)
{
case 3: hash += get16bits (data);
hash ^= hash << 16;
hash ^= data[sizeof (WORD)] << 18;
hash += hash >> 11;
break;
case 2: hash += get16bits (data);
hash ^= hash << 11;
hash += hash >> 17;
break;
case 1: hash += *data;
hash ^= hash << 10;
hash += hash >> 1;
}
/* Force "avalanching" of final 127 bits */
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 4;
hash += hash >> 17;
hash ^= hash << 25;
hash += hash >> 6;
return hash;
/* ======================================================================== */
/* By Paul Hsieh (C) 2004, 2005. Covered under the Paul Hsieh derivative
license. See:
http://www.azillionmonkeys.com/qed/weblicense.html for license details.
http://www.azillionmonkeys.com/qed/hash.html */
#undef get16bits
#if (defined(__GNUC__) && defined(__i386__)) || defined(__WATCOMC__) \
|| defined(_MSC_VER) || defined (__BORLANDC__) || defined (__TURBOC__)
#define get16bits(d) (*((const WORD *) (d)))
#endif
#if !defined (get16bits)
#define get16bits(d) ((((DWORD)(((const BYTE *)(d))[1])) << 8)\
+(DWORD)(((const BYTE *)(d))[0]) )
#endif
DWORD SuperFastHash (const char *data, size_t len)
{
DWORD hash = 0, tmp;
size_t rem;
if (len == 0 || data == NULL) return 0;
rem = len & 3;
len >>= 2;
/* Main loop */
for (;len > 0; len--)
{
hash += get16bits (data);
tmp = (get16bits (data+2) << 11) ^ hash;
hash = (hash << 16) ^ tmp;
data += 2*sizeof (WORD);
hash += hash >> 11;
}
/* Handle end cases */
switch (rem)
{
case 3: hash += get16bits (data);
hash ^= hash << 16;
hash ^= data[sizeof (WORD)] << 18;
hash += hash >> 11;
break;
case 2: hash += get16bits (data);
hash ^= hash << 11;
hash += hash >> 17;
break;
case 1: hash += *data;
hash ^= hash << 10;
hash += hash >> 1;
}
/* Force "avalanching" of final 127 bits */
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 4;
hash += hash >> 17;
hash ^= hash << 25;
hash += hash >> 6;
return hash;
}
/* A modified version to do a case-insensitive hash */
#undef get16bits
#define get16bits(d) ((((DWORD)tolower(((const BYTE *)(d))[1])) << 8)\
+(DWORD)tolower(((const BYTE *)(d))[0]) )
#define get16bits(d) ((((DWORD)tolower(((const BYTE *)(d))[1])) << 8)\
+(DWORD)tolower(((const BYTE *)(d))[0]) )
DWORD SuperFastHashI (const char *data, size_t len)
{
DWORD hash = 0, tmp;
size_t rem;
if (len <= 0 || data == NULL) return 0;
rem = len & 3;
len >>= 2;
/* Main loop */
for (;len > 0; len--)
{
hash += get16bits (data);
tmp = (get16bits (data+2) << 11) ^ hash;
hash = (hash << 16) ^ tmp;
data += 2*sizeof (WORD);
hash += hash >> 11;
}
/* Handle end cases */
switch (rem)
{
case 3: hash += get16bits (data);
hash ^= hash << 16;
hash ^= tolower(data[sizeof (WORD)]) << 18;
hash += hash >> 11;
break;
case 2: hash += get16bits (data);
hash ^= hash << 11;
hash += hash >> 17;
break;
case 1: hash += tolower(*data);
hash ^= hash << 10;
hash += hash >> 1;
}
/* Force "avalanching" of final 127 bits */
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 4;
hash += hash >> 17;
hash ^= hash << 25;
hash += hash >> 6;
return hash;
DWORD SuperFastHashI (const char *data, size_t len)
{
DWORD hash = 0, tmp;
size_t rem;
if (len <= 0 || data == NULL) return 0;
rem = len & 3;
len >>= 2;
/* Main loop */
for (;len > 0; len--)
{
hash += get16bits (data);
tmp = (get16bits (data+2) << 11) ^ hash;
hash = (hash << 16) ^ tmp;
data += 2*sizeof (WORD);
hash += hash >> 11;
}
/* Handle end cases */
switch (rem)
{
case 3: hash += get16bits (data);
hash ^= hash << 16;
hash ^= tolower(data[sizeof (WORD)]) << 18;
hash += hash >> 11;
break;
case 2: hash += get16bits (data);
hash ^= hash << 11;
hash += hash >> 17;
break;
case 1: hash += tolower(*data);
hash ^= hash << 10;
hash += hash >> 1;
}
/* Force "avalanching" of final 127 bits */
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 4;
hash += hash >> 17;
hash ^= hash << 25;
hash += hash >> 6;
return hash;
}
/* ======================================================================== */
/* ======================================================================== */
unsigned int MakeKey (const char *s)
{

75
src/win32/st_start.cpp
View file

@ -104,6 +104,12 @@
#define TEXT_FONT_NAME "vga-rom-font.16"
// How many ms elapse between blinking text flips. On a standard VGA
// adapter, the characters are on for 16 frames and then off for another 16.
// The number here therefore corresponds roughly to the blink rate on a
// 60 Hz display.
#define BLINK_PERIOD 267
// TYPES -------------------------------------------------------------------
class FBasicStartupScreen : public FStartupScreen
@ -186,6 +192,7 @@ BYTE *ST_Util_LoadFont (const char *filename);
void ST_Util_FreeFont (BYTE *font);
BITMAPINFO *ST_Util_AllocTextBitmap (const BYTE *font);
void ST_Util_DrawTextScreen (BITMAPINFO *bitmap_info, const BYTE *text_screen, const BYTE *font);
void ST_Util_UpdateTextBlink (BITMAPINFO *bitmap_info, const BYTE *text_screen, const BYTE *font, bool blink_on);
void ST_Util_DrawChar (BITMAPINFO *screen, const BYTE *font, int x, int y, BYTE charnum, BYTE attrib);
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
@ -1092,6 +1099,8 @@ void ST_Endoom()
BYTE *font;
MSG mess;
BOOL bRet;
bool blinking = false, blinkstate = false;
int i;
if (endoom_lump < 0 || Wads.LumpLength (endoom_lump) != 4000)
{
@ -1125,7 +1134,6 @@ void ST_Endoom()
// Draw the loading screen to a bitmap.
StartupBitmap = ST_Util_AllocTextBitmap (font);
ST_Util_DrawTextScreen (StartupBitmap, endoom_screen, font);
ST_Util_FreeFont (font);
// Make the title banner go away.
if (GameTitleWindow != NULL)
@ -1138,20 +1146,38 @@ void ST_Endoom()
LayoutMainWindow (Window, NULL);
InvalidateRect (StartupScreen, NULL, TRUE);
// Wait until any key has been pressed or a quit message has been received
while ((bRet = GetMessage(&mess, NULL, 0, 0)) != 0)
// Does this screen need blinking?
for (i = 0; i < 80*25; ++i)
{
if (bRet == 0) // Received WM_QUIT
if (endoom_screen[1+i*2] & 0x80)
{
exit (int(mess.wParam));
blinking = true;
break;
}
else if (bRet != -1)
}
if (blinking && SetTimer (Window, 0x5A15A, BLINK_PERIOD, NULL) == 0)
{
blinking = false;
}
// Wait until any key has been pressed or a quit message has been received
for (;;)
{
bRet = GetMessage (&mess, NULL, 0, 0);
if (bRet == 0 || bRet == -1 || // bRet == 0 means we received WM_QUIT
mess.message == WM_KEYDOWN || mess.message == WM_SYSKEYDOWN || mess.message == WM_LBUTTONDOWN)
{
if (mess.message == WM_KEYDOWN || mess.message == WM_SYSKEYDOWN || mess.message == WM_LBUTTONDOWN)
if (blinking)
{
exit (0);
KillTimer (Window, 0x5A15A);
}
ST_Util_FreeFont (font);
exit (int(bRet == 0 ? mess.wParam : 0));
}
else if (blinking && mess.message == WM_TIMER && mess.hwnd == Window && mess.wParam == 0x5A15A)
{
ST_Util_UpdateTextBlink (StartupBitmap, endoom_screen, font, blinkstate);
blinkstate = !blinkstate;
}
TranslateMessage (&mess);
DispatchMessage (&mess);
@ -1550,11 +1576,11 @@ void ST_Util_DrawTextScreen (BITMAPINFO *bitmap_info, const BYTE *text_screen, c
void ST_Util_DrawChar (BITMAPINFO *screen, const BYTE *font, int x, int y, BYTE charnum, BYTE attrib)
{
const BYTE bg_left = attrib & 0xF0;
const BYTE bg_left = attrib & 0x70;
const BYTE fg = attrib & 0x0F;
const BYTE fg_left = fg << 4;
const BYTE bg = bg_left >> 4;
const BYTE color_array[4] = { bg_left | bg, attrib, fg_left | bg, fg_left | fg };
const BYTE color_array[4] = { bg_left | bg, attrib & 0x7F, fg_left | bg, fg_left | fg };
const BYTE *src = font + 1 + charnum * font[0];
int pitch = screen->bmiHeader.biWidth >> 1;
BYTE *dest = ST_Util_BitsForBitmap(screen) + x*4 + y * font[0] * pitch;
@ -1574,3 +1600,30 @@ void ST_Util_DrawChar (BITMAPINFO *screen, const BYTE *font, int x, int y, BYTE
dest += pitch;
}
}
//==========================================================================
//
// ST_Util_UpdateTextBlink
//
// Draws the parts of the text screen that blink to the bitmap. The bitmap
// must be the proper size for the font.
//
//==========================================================================
void ST_Util_UpdateTextBlink (BITMAPINFO *bitmap_info, const BYTE *text_screen, const BYTE *font, bool on)
{
int x, y;
for (y = 0; y < 25; ++y)
{
for (x = 0; x < 80; ++x)
{
if (text_screen[1] & 0x80)
{
ST_Util_DrawChar (bitmap_info, font, x, y, on ? text_screen[0] : ' ', text_screen[1]);
ST_Util_InvalidateRect (Window, bitmap_info, x*8, y*font[0], x*8+8, y*font[0]+font[0]);
}
text_screen += 2;
}
}
}