421 lines
10 KiB
C
421 lines
10 KiB
C
|
#include <windows.h>
|
||
|
|
|
||
|
|
#define _INC_VFW
|
||
|
|
#define VFWAPI FAR PASCAL _loadds
|
||
|
|
|
||
|
|
#include "dva.h"
|
||
|
|
#include "lockbm.h"
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
extern BOOL vga_get_surface(HDC, int, DVASURFACEINFO FAR *);
|
||
|
|
extern BOOL ati_get_surface(HDC, int, DVASURFACEINFO FAR *);
|
||
|
|
extern BOOL dib_get_surface(HDC, int, DVASURFACEINFO FAR *);
|
||
|
|
extern BOOL thun_get_surface(HDC,int, DVASURFACEINFO FAR *);
|
||
|
|
extern BOOL vlb_get_surface(HDC, int, DVASURFACEINFO FAR *);
|
||
|
|
|
||
|
|
#define GetDS() SELECTOROF((LPVOID)&ScreenSel)
|
||
|
|
static short ScreenSel;
|
||
|
|
|
||
|
|
static BOOL InitSurface(DVASURFACEINFO FAR *pdva);
|
||
|
|
static BOOL TestSurface(DVASURFACEINFO FAR *pdva);
|
||
|
|
static void SetSelLimit(UINT sel, DWORD limit);
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
void FAR PASCAL DVAInit()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
void FAR PASCAL DVATerm()
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// free screen alias
|
||
|
|
//
|
||
|
|
if (ScreenSel)
|
||
|
|
{
|
||
|
|
SetSelLimit(ScreenSel, 0);
|
||
|
|
FreeSelector(ScreenSel);
|
||
|
|
ScreenSel = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
BOOL FAR PASCAL _loadds DVAGetSurface(HDC hdc, int nSurface, DVASURFACEINFO FAR *pdva)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
#ifdef USESTUPIDESCAPE
|
||
|
|
i = Escape(hdc, DVAGETSURFACE,sizeof(int),(LPCSTR)&nSurface,(LPVOID)pdva);
|
||
|
|
#else
|
||
|
|
i = 0;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//
|
||
|
|
// should this be a function table? list?
|
||
|
|
//
|
||
|
|
if (i <= 0 &&
|
||
|
|
#ifdef BADDIBENGINESTUFF
|
||
|
|
!dib_get_surface(hdc, nSurface, pdva) &&
|
||
|
|
#endif
|
||
|
|
!ati_get_surface(hdc, nSurface, pdva) &&
|
||
|
|
#ifdef DEBUG
|
||
|
|
!vlb_get_surface(hdc, nSurface, pdva) &&
|
||
|
|
!thun_get_surface(hdc, nSurface, pdva) &&
|
||
|
|
#endif
|
||
|
|
!vga_get_surface(hdc, nSurface, pdva))
|
||
|
|
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
return InitSurface(pdva);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
HDVA FAR PASCAL DVAOpenSurface(HDC hdc, int nSurface)
|
||
|
|
{
|
||
|
|
PDVA pdva;
|
||
|
|
|
||
|
|
pdva = (PDVA)GlobalAllocPtr(GHND|GMEM_SHARE, sizeof(DVASURFACEINFO));
|
||
|
|
|
||
|
|
if (pdva == NULL)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
if (!DVAGetSurface(hdc, nSurface, pdva) ||
|
||
|
|
!pdva->OpenSurface(pdva->lpSurface))
|
||
|
|
{
|
||
|
|
GlobalFreePtr(pdva);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return pdva;
|
||
|
|
}
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
void FAR PASCAL DVACloseSurface(HDVA pdva)
|
||
|
|
{
|
||
|
|
if (pdva == NULL)
|
||
|
|
return;
|
||
|
|
|
||
|
|
pdva->CloseSurface(pdva->lpSurface);
|
||
|
|
|
||
|
|
GlobalFreePtr(pdva);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
BOOL CALLBACK default_open_surface(LPVOID pv)
|
||
|
|
{
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
void CALLBACK default_close_surface(LPVOID pv)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
BOOL CALLBACK default_begin_access(LPVOID pv, int x, int y, int dx, int dy)
|
||
|
|
{
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
void CALLBACK default_end_access(LPVOID pv)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
UINT CALLBACK default_show_surface(LPVOID pv, HWND hwnd, LPRECT src, LPRECT dst)
|
||
|
|
{
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
static BOOL InitSurface(DVASURFACEINFO FAR *pdva)
|
||
|
|
{
|
||
|
|
LPBITMAPINFOHEADER lpbi;
|
||
|
|
|
||
|
|
if (pdva->Version != 0x0100)
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
lpbi = &pdva->BitmapInfo;
|
||
|
|
|
||
|
|
if (lpbi->biSize != sizeof(BITMAPINFOHEADER))
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
if (lpbi->biPlanes != 1)
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
//
|
||
|
|
// make the pointer a 16:16 pointer
|
||
|
|
//
|
||
|
|
if (pdva->offSurface >= 0x10000 &&
|
||
|
|
!(pdva->Flags & DVAF_1632_ACCESS))
|
||
|
|
{
|
||
|
|
if (ScreenSel == NULL)
|
||
|
|
ScreenSel = AllocSelector(GetDS());
|
||
|
|
|
||
|
|
if (pdva->selSurface != 0)
|
||
|
|
pdva->offSurface += GetSelectorBase(pdva->selSurface);
|
||
|
|
|
||
|
|
SetSelectorBase(ScreenSel,pdva->offSurface);
|
||
|
|
SetSelLimit(ScreenSel,lpbi->biSizeImage-1);
|
||
|
|
|
||
|
|
pdva->offSurface = 0;
|
||
|
|
pdva->selSurface = ScreenSel;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// fill in defaults.
|
||
|
|
//
|
||
|
|
if (pdva->OpenSurface == NULL)
|
||
|
|
pdva->OpenSurface = default_open_surface;
|
||
|
|
|
||
|
|
if (pdva->CloseSurface == NULL)
|
||
|
|
pdva->CloseSurface = default_close_surface;
|
||
|
|
|
||
|
|
if (pdva->ShowSurface == NULL)
|
||
|
|
pdva->ShowSurface = default_show_surface;
|
||
|
|
|
||
|
|
if (pdva->BeginAccess == NULL)
|
||
|
|
{
|
||
|
|
pdva->BeginAccess = default_begin_access;
|
||
|
|
pdva->EndAccess = default_end_access;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// only test RGB surfaces.
|
||
|
|
//
|
||
|
|
if (lpbi->biCompression == 0 ||
|
||
|
|
lpbi->biCompression == BI_BITFIELDS ||
|
||
|
|
lpbi->biCompression == BI_1632)
|
||
|
|
{
|
||
|
|
if (!TestSurface(pdva))
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// set BI_1632 if needed
|
||
|
|
//
|
||
|
|
if (pdva->Flags & DVAF_1632_ACCESS)
|
||
|
|
{
|
||
|
|
lpbi->biCompression = BI_1632;
|
||
|
|
}
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
#pragma optimize("", off)
|
||
|
|
static void SetSelLimit(UINT sel, DWORD limit)
|
||
|
|
{
|
||
|
|
if (limit >= 1024*1024l)
|
||
|
|
limit = ((limit+4096) & ~4095) - 1;
|
||
|
|
|
||
|
|
_asm
|
||
|
|
{
|
||
|
|
mov ax,0008h ; DPMI set limit
|
||
|
|
mov bx,sel
|
||
|
|
mov dx,word ptr limit[0]
|
||
|
|
mov cx,word ptr limit[2]
|
||
|
|
int 31h
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#pragma optimize("", on)
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
#define ASM66 _asm _emit 0x66 _asm
|
||
|
|
#define DB _asm _emit
|
||
|
|
|
||
|
|
#pragma optimize("", off)
|
||
|
|
static BYTE ReadByte(PDVA pdva, LPVOID lpBits, DWORD dw)
|
||
|
|
{
|
||
|
|
BYTE b=42;
|
||
|
|
|
||
|
|
DVABeginAccess(pdva, 0, 0, 1024, 1024);
|
||
|
|
|
||
|
|
_asm {
|
||
|
|
ASM66 xor bx,bx
|
||
|
|
les bx,lpBits
|
||
|
|
ASM66 add bx,word ptr dw
|
||
|
|
mov ax,es
|
||
|
|
ASM66 lsl ax,ax
|
||
|
|
ASM66 cmp bx,ax
|
||
|
|
ja exit
|
||
|
|
DB 26h ;mov al,es:[ebx]
|
||
|
|
DB 67h
|
||
|
|
DB 8Ah
|
||
|
|
DB 03h
|
||
|
|
mov b,al
|
||
|
|
exit:
|
||
|
|
}
|
||
|
|
|
||
|
|
DVAEndAccess(pdva);
|
||
|
|
|
||
|
|
return b;
|
||
|
|
}
|
||
|
|
#pragma optimize("", on)
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// SetPixel
|
||
|
|
//
|
||
|
|
// some cards cant't seam to do SetPixel right it is amazing they work at all
|
||
|
|
//
|
||
|
|
/////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
static void SetPixelX(HDC hdc, int x, int y, COLORREF rgb)
|
||
|
|
{
|
||
|
|
RECT rc;
|
||
|
|
|
||
|
|
rc.left = x;
|
||
|
|
rc.top = y;
|
||
|
|
rc.right = x+1;
|
||
|
|
rc.bottom = y+1;
|
||
|
|
|
||
|
|
SetBkColor(hdc, rgb);
|
||
|
|
ExtTextOut(hdc, 0, 0, ETO_OPAQUE, &rc, NULL, 0, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define SetPixel SetPixelX
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
***************************************************************************/
|
||
|
|
|
||
|
|
static BOOL TestSurface(DVASURFACEINFO FAR *pdva)
|
||
|
|
{
|
||
|
|
HDC hdc;
|
||
|
|
int x,y,h,w,wb;
|
||
|
|
COLORREF rgb,rgb0,rgb1,rgb2,rgb3,rgb4;
|
||
|
|
DWORD dw;
|
||
|
|
BYTE b0,b1;
|
||
|
|
UINT uType=0;
|
||
|
|
LPBITMAPINFOHEADER lpbi;
|
||
|
|
LPVOID lpBits;
|
||
|
|
HCURSOR hcur;
|
||
|
|
|
||
|
|
if (!pdva->OpenSurface(pdva->lpSurface))
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
lpbi = DVAGetSurfaceFmt(pdva);
|
||
|
|
lpBits = DVAGetSurfacePtr(pdva);
|
||
|
|
|
||
|
|
h = abs((int)lpbi->biHeight);
|
||
|
|
w = (int)lpbi->biWidth;
|
||
|
|
wb = (w * ((UINT)lpbi->biBitCount/8) + 3) & ~3;
|
||
|
|
dw = (DWORD)(UINT)(h-1) * (DWORD)(UINT)wb;
|
||
|
|
|
||
|
|
if ((int)lpbi->biHeight < 0)
|
||
|
|
y = 0;
|
||
|
|
else
|
||
|
|
y = h-1;
|
||
|
|
|
||
|
|
#ifdef XDEBUG
|
||
|
|
x = (int)lpbi->biWidth - 5;
|
||
|
|
((LPBYTE)lpBits) += x * (UINT)lpbi->biBitCount/8;
|
||
|
|
#else
|
||
|
|
x = 0;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
hcur = SetCursor(NULL);
|
||
|
|
hdc = GetDC(NULL);
|
||
|
|
|
||
|
|
rgb = GetPixel(hdc, x, h-1-y);
|
||
|
|
SetPixel(hdc, x, h-1-y, RGB(0,0,0)); GetPixel(hdc, x, h-1-y); b0 = ReadByte(pdva, lpBits, dw);
|
||
|
|
SetPixel(hdc, x, h-1-y, RGB(255,255,255)); GetPixel(hdc, x, h-1-y); b1 = ReadByte(pdva, lpBits, dw);
|
||
|
|
SetPixel(hdc, x, h-1-y,rgb);
|
||
|
|
|
||
|
|
if (b0 != 0x00 || b1 == 0x00)
|
||
|
|
goto done;
|
||
|
|
|
||
|
|
rgb0 = GetPixel(hdc, x+0, y);
|
||
|
|
rgb1 = GetPixel(hdc, x+1, y);
|
||
|
|
rgb2 = GetPixel(hdc, x+2, y);
|
||
|
|
rgb3 = GetPixel(hdc, x+3, y);
|
||
|
|
rgb4 = GetPixel(hdc, x+4, y);
|
||
|
|
|
||
|
|
TestSurfaceType(hdc, x, y);
|
||
|
|
|
||
|
|
DVABeginAccess(pdva, x, y, 5, 1);
|
||
|
|
uType = GetSurfaceType(lpBits);
|
||
|
|
DVAEndAccess(pdva);
|
||
|
|
|
||
|
|
SetPixel(hdc, x+0, y,rgb0);
|
||
|
|
SetPixel(hdc, x+1, y,rgb1);
|
||
|
|
SetPixel(hdc, x+2, y,rgb2);
|
||
|
|
SetPixel(hdc, x+3, y,rgb3);
|
||
|
|
SetPixel(hdc, x+4, y,rgb4);
|
||
|
|
|
||
|
|
done:
|
||
|
|
ReleaseDC(NULL, hdc);
|
||
|
|
SetCursor(hcur);
|
||
|
|
|
||
|
|
pdva->CloseSurface(pdva->lpSurface);
|
||
|
|
|
||
|
|
switch (uType)
|
||
|
|
{
|
||
|
|
case BM_8BIT:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case BM_16555:
|
||
|
|
((LPDWORD)(lpbi+1))[0] = 0x007C00;
|
||
|
|
((LPDWORD)(lpbi+1))[1] = 0x0003E0;
|
||
|
|
((LPDWORD)(lpbi+1))[2] = 0x00001F;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case BM_24BGR:
|
||
|
|
case BM_32BGR:
|
||
|
|
((LPDWORD)(lpbi+1))[0] = 0xFF0000;
|
||
|
|
((LPDWORD)(lpbi+1))[1] = 0x00FF00;
|
||
|
|
((LPDWORD)(lpbi+1))[2] = 0x0000FF;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case BM_16565:
|
||
|
|
lpbi->biCompression = BI_BITFIELDS;
|
||
|
|
((LPDWORD)(lpbi+1))[0] = 0x00F800;
|
||
|
|
((LPDWORD)(lpbi+1))[1] = 0x0007E0;
|
||
|
|
((LPDWORD)(lpbi+1))[2] = 0x00001F;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case BM_24RGB:
|
||
|
|
case BM_32RGB:
|
||
|
|
lpbi->biCompression = BI_BITFIELDS;
|
||
|
|
((LPDWORD)(lpbi+1))[0] = 0x0000FF;
|
||
|
|
((LPDWORD)(lpbi+1))[1] = 0x00FF00;
|
||
|
|
((LPDWORD)(lpbi+1))[2] = 0xFF0000;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return uType != 0;
|
||
|
|
}
|