mirror of
https://github.com/ptitSeb/Serious-Engine
synced 2024-10-06 07:54:51 +02:00
24cb244d43
This was a _ton_ of changes, made 15 years ago, so there are probably some problems to work out still. Among others: Engine/Base/Stream.* was mostly abandoned and will need to be re-ported. Still, this is a pretty good start, and probably holds a world record for lines of changes or something. :)
146 lines
3.1 KiB
C
146 lines
3.1 KiB
C
/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
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#ifndef SE_INCL_VERTEX_H
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#define SE_INCL_VERTEX_H
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#ifdef PRAGMA_ONCE
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#pragma once
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#endif
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#include "Color.h"
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// !!! FIXME: rcg11162001 I have the structures packed to assure positioning.
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// !!! FIXME: rcg11162001 This should be fixed on win32, and then this
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// !!! FIXME: rcg11162001 ifndef should be removed.
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#ifndef PLATFORM_WIN32
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#pragma pack(1)
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#endif
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struct GFXVertex3
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{
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FLOAT x,y,z;
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};
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struct GFXNormal3
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{
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FLOAT nx,ny,nz;
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};
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struct GFXTexCoord
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{
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union {
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struct { FLOAT u,v; } uv;
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struct { FLOAT s,t; } st;
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};
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};
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struct GFXTexCoord4
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{
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FLOAT s,t,r,q;
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};
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struct GFXColor
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{
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union {
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struct { UBYTE r,g,b,a; } ub;
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struct { ULONG abgr; } ul; // reverse order - use ByteSwap()!
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};
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GFXColor() {};
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/*
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* rcg10052001 This is a REALLY bad idea;
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* never rely on the memory layout of even a
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* simple class. It works for MSVC, though,
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* so we'll keep it.
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*/
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#if (defined _MSC_VER)
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GFXColor( COLOR col) {
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_asm mov ecx,dword ptr [this]
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_asm mov eax,dword ptr [col]
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_asm bswap eax
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_asm mov dword ptr [ecx],eax
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}
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__forceinline void Set( COLOR col) {
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_asm mov ecx,dword ptr [this]
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_asm mov eax,dword ptr [col]
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_asm bswap eax
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_asm mov dword ptr [ecx],eax
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}
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#else
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GFXColor( COLOR col) { ul.abgr = ByteSwap(col); }
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__forceinline void Set( COLOR col) { ul.abgr = ByteSwap(col); }
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#endif
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void MultiplyRGBA( const GFXColor &col1, const GFXColor &col2) {
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ub.r = (ULONG(col1.ub.r)*col2.ub.r)>>8;
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ub.g = (ULONG(col1.ub.g)*col2.ub.g)>>8;
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ub.b = (ULONG(col1.ub.b)*col2.ub.b)>>8;
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ub.a = (ULONG(col1.ub.a)*col2.ub.a)>>8;
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}
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void MultiplyRGB( const GFXColor &col1, const GFXColor &col2) {
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ub.r = (ULONG(col1.ub.r)*col2.ub.r)>>8;
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ub.g = (ULONG(col1.ub.g)*col2.ub.g)>>8;
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ub.b = (ULONG(col1.ub.b)*col2.ub.b)>>8;
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}
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void MultiplyRGBCopyA1( const GFXColor &col1, const GFXColor &col2) {
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ub.r = (ULONG(col1.ub.r)*col2.ub.r)>>8;
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ub.g = (ULONG(col1.ub.g)*col2.ub.g)>>8;
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ub.b = (ULONG(col1.ub.b)*col2.ub.b)>>8;
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ub.a = col1.ub.a;
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}
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void AttenuateRGB( ULONG ulA) {
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ub.r = (ULONG(ub.r)*ulA)>>8;
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ub.g = (ULONG(ub.g)*ulA)>>8;
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ub.b = (ULONG(ub.b)*ulA)>>8;
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}
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void AttenuateA( ULONG ulA) {
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ub.a = (ULONG(ub.a)*ulA)>>8;
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}
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};
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#define GFXVertex GFXVertex4
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/*
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* rcg10042001 Removed the union; objects with constructors can't be
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* safely unioned, and there's not a whole lot of memory lost here anyhow.
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*/
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// IF YOU CHANGE THIS STRUCT, YOU WILL BREAK THE INLINE ASSEMBLY
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// ON GNU PLATFORMS! THIS INCLUDES CHANGING THE STRUCTURE'S PACKING.
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// You have been warned.
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struct GFXVertex4 {
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FLOAT x,y,z;
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struct GFXColor col;
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SLONG shade;
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void Clear(void) {};
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};
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#define GFXNormal GFXNormal4
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struct GFXNormal4
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{
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FLOAT nx,ny,nz;
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ULONG ul;
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};
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// !!! FIXME: rcg11162001 I have the structures packed to assure positioning.
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// !!! FIXME: rcg11162001 This should be fixed on win32, and then this
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// !!! FIXME: rcg11162001 ifndef should be removed.
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#ifndef PLATFORM_WIN32
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#pragma pack()
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#endif
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#endif /* include-once check. */
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