project64/Source/Glide64/MiClWr32b.h

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2013-04-04 21:22:19 +00:00
/*
* Glide64 - Glide video plugin for Nintendo 64 emulators.
* Copyright (c) 2002 Dave2001
* Copyright (c) 2003-2009 Sergey 'Gonetz' Lipski
*
* 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
* 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
*/
//****************************************************************
//
// Glide64 - Glide Plugin for Nintendo 64 emulators
// Project started on December 29th, 2001
//
// Authors:
// Dave2001, original author, founded the project in 2001, left it in 2002
// Gugaman, joined the project in 2002, left it in 2002
// Sergey 'Gonetz' Lipski, joined the project in 2002, main author since fall of 2002
// Hiroshi 'KoolSmoky' Morii, joined the project in 2007
//
//****************************************************************
//
// To modify Glide64:
// * Write your name and (optional)email, commented by your work, so I know who did it, and so that you can find which parts you modified when it comes time to send it to me.
// * Do NOT send me the whole project or file that you modified. Take out your modified code sections, and tell me where to put them. If people sent the whole thing, I would have many different versions, but no idea how to combine them all.
//
//****************************************************************
//
// Created by Gonetz, 2007
//
//****************************************************************
extern "C" void asmMirror32bS (int tex, int start, int width, int height, int mask, int line, int full, int count);
extern "C" void asmWrap32bS (int tex, int start, int height, int mask, int line, int full, int count);
extern "C" void asmClamp32bS (int tex, int constant, int height,int line, int full, int count);
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//****************************************************************
// 32-bit Horizontal Mirror
void Mirror32bS (wxUint32 tex, wxUint32 mask, wxUint32 max_width, wxUint32 real_width, wxUint32 height)
{
if (mask == 0) return;
wxUint32 mask_width = (1 << mask);
wxUint32 mask_mask = (mask_width-1) << 2;
if (mask_width >= max_width) return;
int count = max_width - mask_width;
if (count <= 0) return;
int line_full = real_width << 2;
int line = line_full - (count << 2);
if (line < 0) return;
wxUint32 start = tex + (mask_width << 2);
asmMirror32bS (tex, start, mask_width, height, mask_mask, line, line_full, count);
}
//****************************************************************
// 32-bit Horizontal Wrap
void Wrap32bS (wxUint32 tex, wxUint32 mask, wxUint32 max_width, wxUint32 real_width, wxUint32 height)
{
if (mask == 0) return;
wxUint32 mask_width = (1 << mask);
wxUint32 mask_mask = (mask_width-1);
if (mask_width >= max_width) return;
int count = (max_width - mask_width);
if (count <= 0) return;
int line_full = real_width << 2;
int line = line_full - (count << 2);
if (line < 0) return;
wxUint32 start = tex + (mask_width << 2);
asmWrap32bS (tex, start, height, mask_mask, line, line_full, count);
}
//****************************************************************
// 32-bit Horizontal Clamp
void Clamp32bS (wxUint32 tex, wxUint32 width, wxUint32 clamp_to, wxUint32 real_width, wxUint32 real_height)
{
if (real_width <= width) return;
wxUint32 dest = tex + (width << 2);
wxUint32 constant = dest-4;
int count = clamp_to - width;
int line_full = real_width << 2;
int line = width << 2;
asmClamp32bS (dest, constant, real_height, line, line_full, count);
}
//****************************************************************
// 32-bit Vertical Mirror
void Mirror32bT (wxUint32 tex, wxUint32 mask, wxUint32 max_height, wxUint32 real_width)
{
if (mask == 0) return;
wxUint32 mask_height = (1 << mask);
wxUint32 mask_mask = mask_height-1;
if (max_height <= mask_height) return;
int line_full = real_width << 2;
wxUint32 dst = tex + mask_height * line_full;
for (wxUint32 y=mask_height; y<max_height; y++)
{
if (y & mask_height)
{
// mirrored
memcpy ((void*)dst, (void*)(tex + (mask_mask - (y & mask_mask)) * line_full), line_full);
}
else
{
// not mirrored
memcpy ((void*)dst, (void*)(tex + (y & mask_mask) * line_full), line_full);
}
dst += line_full;
}
}
//****************************************************************
// 32-bit Vertical Wrap
void Wrap32bT (wxUint32 tex, wxUint32 mask, wxUint32 max_height, wxUint32 real_width)
{
if (mask == 0) return;
wxUint32 mask_height = (1 << mask);
wxUint32 mask_mask = mask_height-1;
if (max_height <= mask_height) return;
int line_full = real_width << 2;
wxUint32 dst = tex + mask_height * line_full;
for (wxUint32 y=mask_height; y<max_height; y++)
{
// not mirrored
memcpy ((void*)dst, (void*)(tex + (y & mask_mask) * line_full), line_full);
dst += line_full;
}
}
//****************************************************************
// 32-bit Vertical Clamp
void Clamp32bT (wxUint32 tex, wxUint32 height, wxUint32 real_width, wxUint32 clamp_to)
{
int line_full = real_width << 2;
wxUint32 dst = tex + height * line_full;
wxUint32 const_line = dst - line_full;
for (wxUint32 y=height; y<clamp_to; y++)
{
memcpy ((void*)dst, (void*)const_line, line_full);
dst += line_full;
}
}