2016-11-01 20:44:33 +00:00
|
|
|
/*
|
|
|
|
|
** DrawSpan code generation
|
|
|
|
|
** Copyright (c) 2016 Magnus Norddahl
|
|
|
|
|
**
|
|
|
|
|
** This software is provided 'as-is', without any express or implied
|
|
|
|
|
** warranty. In no event will the authors be held liable for any damages
|
|
|
|
|
** arising from the use of this software.
|
|
|
|
|
**
|
|
|
|
|
** Permission is granted to anyone to use this software for any purpose,
|
|
|
|
|
** including commercial applications, and to alter it and redistribute it
|
|
|
|
|
** freely, subject to the following restrictions:
|
|
|
|
|
**
|
|
|
|
|
** 1. The origin of this software must not be misrepresented; you must not
|
|
|
|
|
** claim that you wrote the original software. If you use this software
|
|
|
|
|
** in a product, an acknowledgment in the product documentation would be
|
|
|
|
|
** appreciated but is not required.
|
|
|
|
|
** 2. Altered source versions must be plainly marked as such, and must not be
|
|
|
|
|
** misrepresented as being the original software.
|
|
|
|
|
** 3. This notice may not be removed or altered from any source distribution.
|
|
|
|
|
**
|
|
|
|
|
*/
|
2016-09-29 03:21:43 +00:00
|
|
|
|
|
|
|
|
#pragma once
|
|
|
|
|
|
|
|
|
|
#include "drawercodegen.h"
|
|
|
|
|
|
|
|
|
|
enum class DrawSpanVariant
|
|
|
|
|
{
|
|
|
|
|
Opaque,
|
|
|
|
|
Masked,
|
|
|
|
|
Translucent,
|
|
|
|
|
MaskedTranslucent,
|
|
|
|
|
AddClamp,
|
|
|
|
|
MaskedAddClamp
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
class DrawSpanCodegen : public DrawerCodegen
|
|
|
|
|
{
|
|
|
|
|
public:
|
|
|
|
|
void Generate(DrawSpanVariant variant, SSAValue args);
|
|
|
|
|
|
|
|
|
|
private:
|
|
|
|
|
void LoopShade(DrawSpanVariant variant, bool isSimpleShade);
|
|
|
|
|
void LoopFilter(DrawSpanVariant variant, bool isSimpleShade, bool isNearestFilter);
|
|
|
|
|
SSAInt Loop4x(DrawSpanVariant variant, bool isSimpleShade, bool isNearestFilter, bool is64x64);
|
|
|
|
|
void Loop(SSAInt start, DrawSpanVariant variant, bool isSimpleShade, bool isNearestFilter, bool is64x64);
|
|
|
|
|
SSAVec4i Sample(SSAInt xfrac, SSAInt yfrac, bool isNearestFilter, bool is64x64);
|
2016-11-05 10:29:50 +00:00
|
|
|
SSAVec4i SampleLinear(SSAUBytePtr texture, SSAInt xfrac, SSAInt yfrac, SSAInt xbits, SSAInt ybits);
|
2016-09-29 03:21:43 +00:00
|
|
|
SSAVec4i Shade(SSAVec4i fg, bool isSimpleShade);
|
|
|
|
|
SSAVec4i Blend(SSAVec4i fg, SSAVec4i bg, DrawSpanVariant variant);
|
|
|
|
|
|
|
|
|
|
SSAStack<SSAInt> stack_index, stack_xfrac, stack_yfrac;
|
|
|
|
|
|
|
|
|
|
SSAUBytePtr destorg;
|
|
|
|
|
SSAUBytePtr source;
|
|
|
|
|
SSAInt destpitch;
|
|
|
|
|
SSAInt xstep;
|
|
|
|
|
SSAInt ystep;
|
|
|
|
|
SSAInt x1;
|
|
|
|
|
SSAInt x2;
|
|
|
|
|
SSAInt y;
|
|
|
|
|
SSAInt xbits;
|
|
|
|
|
SSAInt ybits;
|
|
|
|
|
SSAInt light;
|
|
|
|
|
SSAInt srcalpha;
|
|
|
|
|
SSAInt destalpha;
|
|
|
|
|
SSAInt count;
|
|
|
|
|
SSAUBytePtr data;
|
|
|
|
|
SSAInt yshift;
|
|
|
|
|
SSAInt xshift;
|
|
|
|
|
SSAInt xmask;
|
|
|
|
|
SSABool is_64x64;
|
|
|
|
|
SSABool is_simple_shade;
|
|
|
|
|
SSABool is_nearest_filter;
|
|
|
|
|
SSAShadeConstants shade_constants;
|
|
|
|
|
};
|
