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Render8bpp.h
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//
// 8bit Normal
//
void CDirectDraw::Render8bpp_Normal( LPBYTE lpRdr, LPBYTE lpDlt, DDSURFACEDESC2& ddsd, BOOL bForceWrite )
{
LPBYTE pScn = lpRdr;
LPBYTE pDst = (LPBYTE)ddsd.lpSurface;
DWORD width = SCREEN_WIDTH;
DWORD pitch = ddsd.lPitch;
for( INT i = 0; i < SCREEN_HEIGHT; i++ ) {
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
mov edx, 0x40404040
_r8bn_loop:
mov eax, [esi+0]
mov ebx, [esi+4]
or eax, edx
or ebx, edx
mov [edi+0], eax
mov [edi+4], ebx
lea esi, [esi+8]
lea edi, [edi+8]
sub ecx, 8
jg _r8bn_loop
}
pScn += RENDER_WIDTH;
pDst += pitch;
}
}
//
// 8bit Scanline
//
void CDirectDraw::Render8bpp_Scanline( LPBYTE lpRdr, LPBYTE lpDlt, DDSURFACEDESC2& ddsd, BOOL bForceWrite )
{
LPBYTE pScn = lpRdr;
LPBYTE pDst = (LPBYTE)ddsd.lpSurface;
DWORD width = SCREEN_WIDTH;
DWORD pitch = ddsd.lPitch;
for( INT i = 0; i < SCREEN_HEIGHT; i++ ) {
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
mov edx, 0x40404040
_r8bs_loop:
mov eax, [esi+0]
mov ebx, [esi+4]
or eax, edx
or ebx, edx
mov [edi+0], eax
mov [edi+4], ebx
lea esi, [esi+8]
lea edi, [edi+8]
sub ecx, 8
jg _r8bs_loop
}
pDst += pitch;
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
mov edx, 0x80808080
_r8bs_loop2:
mov eax, [esi+0]
mov ebx, [esi+4]
or eax, edx
or ebx, edx
mov [edi+0], eax
mov [edi+4], ebx
lea esi, [esi+8]
lea edi, [edi+8]
sub ecx, 8
jg _r8bs_loop2
}
pScn += RENDER_WIDTH;
pDst += pitch;
}
}
//
// 8bit Double
//
void CDirectDraw::Render8bpp_Double( LPBYTE lpRdr, LPBYTE lpDlt, DDSURFACEDESC2& ddsd, BOOL bForceWrite )
{
LPBYTE pScn = lpRdr;
LPBYTE pDst = (LPBYTE)ddsd.lpSurface;
DWORD width = SCREEN_WIDTH;
DWORD pitch = ddsd.lPitch;
if( !IsMMX() ) {
for( INT i = 0; i < SCREEN_HEIGHT; i++ ) {
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
mov edx, 0x40404040
_r8bn_d_loop:
mov al, [esi+1]
mov ah, al
shl eax, 16
mov al, [esi+0]
mov ah, al
or eax, edx
mov [edi+ 0], eax
mov al, [esi+3]
mov ah, al
shl eax, 16
mov al, [esi+2]
mov ah, al
or eax, edx
mov [edi+ 4], eax
mov al, [esi+5]
mov ah, al
shl eax, 16
mov al, [esi+4]
mov ah, al
or eax, edx
mov [edi+ 8], eax
mov al, [esi+7]
mov ah, al
shl eax, 16
mov al, [esi+6]
mov ah, al
or eax, edx
mov [edi+12], eax
lea esi, [esi+8]
lea edi, [edi+16]
sub ecx, 8
jg _r8bn_d_loop
}
pDst += pitch;
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
mov edx, 0x40404040
_r8bn_d_loop2:
mov al, [esi+1]
mov ah, al
shl eax, 16
mov al, [esi+0]
mov ah, al
or eax, edx
mov [edi+ 0], eax
mov al, [esi+3]
mov ah, al
shl eax, 16
mov al, [esi+2]
mov ah, al
or eax, edx
mov [edi+ 4], eax
mov al, [esi+5]
mov ah, al
shl eax, 16
mov al, [esi+4]
mov ah, al
or eax, edx
mov [edi+ 8], eax
mov al, [esi+7]
mov ah, al
shl eax, 16
mov al, [esi+6]
mov ah, al
or eax, edx
mov [edi+12], eax
lea esi, [esi+8]
lea edi, [edi+16]
sub ecx, 8
jg _r8bn_d_loop2
}
pScn += RENDER_WIDTH;
pDst += pitch;
}
} else {
QWORD mask = 0x4040404040404040;
for( INT i = 0; i < SCREEN_HEIGHT; i++ ) {
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
movq mm7, mask
_r8bn_d_loop3:
movd mm0, [esi+0]
movd mm2, [esi+4]
movq mm1, mm0
movq mm3, mm2
punpcklbw mm0, mm1
punpcklbw mm2, mm3
por mm0, mm7
por mm2, mm7
movq [edi+ 0], mm0
movq [edi+ 8], mm2
lea esi, [esi+8]
lea edi, [edi+16]
sub ecx, 8
jg _r8bn_d_loop3
}
pDst += pitch;
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
movq mm7, mask
_r8bn_d_loop4:
movd mm0, [esi+0]
movd mm2, [esi+4]
movq mm1, mm0
movq mm3, mm2
punpcklbw mm0, mm1
punpcklbw mm2, mm3
por mm0, mm7
por mm2, mm7
movq [edi+ 0], mm0
movq [edi+ 8], mm2
lea esi, [esi+8]
lea edi, [edi+16]
sub ecx, 8
jg _r8bn_d_loop4
}
pScn += RENDER_WIDTH;
pDst += pitch;
}
__asm {
emms
}
}
}
//
// 8bit Double Scanline
//
void CDirectDraw::Render8bpp_DoubleScanline( LPBYTE lpRdr, LPBYTE lpDlt, DDSURFACEDESC2& ddsd, BOOL bForceWrite )
{
LPBYTE pScn = lpRdr;
LPBYTE pDst = (LPBYTE)ddsd.lpSurface;
DWORD width = SCREEN_WIDTH;
DWORD pitch = ddsd.lPitch;
if( !IsMMX() ) {
for( INT i = 0; i < SCREEN_HEIGHT; i++ ) {
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
mov edx, 0x40404040
_r8bs_d_loop:
mov al, [esi+1]
mov ah, al
shl eax, 16
mov al, [esi+0]
mov ah, al
or eax, edx
mov [edi+ 0], eax
mov al, [esi+3]
mov ah, al
shl eax, 16
mov al, [esi+2]
mov ah, al
or eax, edx
mov [edi+ 4], eax
mov al, [esi+5]
mov ah, al
shl eax, 16
mov al, [esi+4]
mov ah, al
or eax, edx
mov [edi+ 8], eax
mov al, [esi+7]
mov ah, al
shl eax, 16
mov al, [esi+6]
mov ah, al
or eax, edx
mov [edi+12], eax
lea esi, [esi+8]
lea edi, [edi+16]
sub ecx, 8
jg _r8bs_d_loop
}
pDst += pitch;
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
mov edx, 0x80808080
_r8bs_d_loop2:
mov al, [esi+1]
mov ah, al
shl eax, 16
mov al, [esi+0]
mov ah, al
or eax, edx
mov [edi+ 0], eax
mov al, [esi+3]
mov ah, al
shl eax, 16
mov al, [esi+2]
mov ah, al
or eax, edx
mov [edi+ 4], eax
mov al, [esi+5]
mov ah, al
shl eax, 16
mov al, [esi+4]
mov ah, al
or eax, edx
mov [edi+ 8], eax
mov al, [esi+7]
mov ah, al
shl eax, 16
mov al, [esi+6]
mov ah, al
or eax, edx
mov [edi+12], eax
lea esi, [esi+8]
lea edi, [edi+16]
sub ecx, 8
jg _r8bs_d_loop2
}
pScn += RENDER_WIDTH;
pDst += pitch;
}
} else {
QWORD maskn = 0x4040404040404040;
QWORD masks = 0x8080808080808080;
for( INT i = 0; i < SCREEN_HEIGHT; i++ ) {
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
movq mm7, maskn
_r8bs_d_loop3:
movd mm0, [esi+0]
movd mm2, [esi+4]
movq mm1, mm0
movq mm3, mm2
punpcklbw mm0, mm1
punpcklbw mm2, mm3
por mm0, mm7
por mm2, mm7
movq [edi+ 0], mm0
movq [edi+ 8], mm2
lea esi, [esi+8]
lea edi, [edi+16]
sub ecx, 8
jg _r8bs_d_loop3
}
pDst += pitch;
__asm {
mov esi, pScn
mov edi, pDst
mov ecx, width
movq mm7, masks
_r8bs_d_loop4:
movd mm0, [esi+0]
movd mm2, [esi+4]
movq mm1, mm0
movq mm3, mm2
punpcklbw mm0, mm1
punpcklbw mm2, mm3
por mm0, mm7
por mm2, mm7
movq [edi+ 0], mm0
movq [edi+ 8], mm2
lea esi, [esi+8]
lea edi, [edi+16]
sub ecx, 8
jg _r8bs_d_loop4
}
pScn += RENDER_WIDTH;
pDst += pitch;
}
__asm {
emms
}
}
}