mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-18 18:31:43 +00:00
112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
/*
|
|
** DrawTriangle 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.
|
|
**
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "drawercodegen.h"
|
|
|
|
struct SSATriVertex
|
|
{
|
|
SSAFloat x, y, z, w;
|
|
SSAFloat varying[TriVertex::NumVarying];
|
|
};
|
|
|
|
struct SSAStepVariables
|
|
{
|
|
SSAFloat W;
|
|
SSAFloat Varying[TriVertex::NumVarying];
|
|
};
|
|
|
|
class DrawTriangleCodegen : public DrawerCodegen
|
|
{
|
|
public:
|
|
void Generate(TriBlendMode blendmode, bool truecolor, bool colorfill, SSAValue args, SSAValue thread_data);
|
|
|
|
private:
|
|
void LoadArgs(SSAValue args, SSAValue thread_data);
|
|
SSATriVertex LoadTriVertex(SSAValue v);
|
|
void LoadUniforms(SSAValue uniforms);
|
|
void CalculateGradients();
|
|
SSAFloat FindGradientX(SSAFloat x0, SSAFloat y0, SSAFloat x1, SSAFloat y1, SSAFloat x2, SSAFloat y2, SSAFloat c0, SSAFloat c1, SSAFloat c2);
|
|
SSAFloat FindGradientY(SSAFloat x0, SSAFloat y0, SSAFloat x1, SSAFloat y1, SSAFloat x2, SSAFloat y2, SSAFloat c0, SSAFloat c1, SSAFloat c2);
|
|
void DrawFullSpans(bool isSimpleShade);
|
|
void DrawPartialBlocks(bool isSimpleShade);
|
|
|
|
SSAVec4i ProcessPixel32(SSAVec4i bg, SSAInt *varying, bool isSimpleShade);
|
|
SSAInt ProcessPixel8(SSAInt bg, SSAInt *varying);
|
|
SSAVec4i TranslateSample32(SSAInt *varying);
|
|
SSAInt TranslateSample8(SSAInt *varying);
|
|
SSAVec4i Sample32(SSAInt *varying);
|
|
SSAInt Sample8(SSAInt *varying);
|
|
SSAVec4i Shade32(SSAVec4i fg, SSAInt light, bool isSimpleShade);
|
|
SSAInt Shade8(SSAInt c);
|
|
SSAVec4i ToBgra(SSAInt index);
|
|
SSAInt ToPal8(SSAVec4i c);
|
|
SSAVec4i FadeOut(SSAInt frac, SSAVec4i color);
|
|
|
|
SSAStack<SSAInt> stack_i, stack_y, stack_x;
|
|
SSAStack<SSAFloat> stack_posYW, stack_posXW;
|
|
SSAStack<SSAFloat> stack_posYVarying[TriVertex::NumVarying];
|
|
SSAStack<SSAFloat> stack_posXVarying[TriVertex::NumVarying];
|
|
SSAStack<SSAInt> stack_varyingPos[TriVertex::NumVarying];
|
|
SSAStack<SSAInt> stack_lightpos;
|
|
SSAStack<SSAUBytePtr> stack_dest;
|
|
|
|
SSAStepVariables gradientX, gradientY, start;
|
|
SSAFloat shade, globVis;
|
|
|
|
SSAInt currentlight;
|
|
SSAUBytePtr currentcolormap;
|
|
|
|
SSAUBytePtr destOrg;
|
|
SSAInt pitch;
|
|
SSATriVertex v1;
|
|
SSATriVertex v2;
|
|
SSATriVertex v3;
|
|
SSAUBytePtr texturePixels;
|
|
SSAInt textureWidth;
|
|
SSAInt textureHeight;
|
|
SSAUBytePtr translation;
|
|
SSAInt color, srcalpha, destalpha;
|
|
|
|
SSAInt light;
|
|
SSAShadeConstants shade_constants;
|
|
SSABool is_simple_shade;
|
|
SSABool is_nearest_filter;
|
|
SSABool is_fixed_light;
|
|
|
|
SSAUBytePtr Colormaps;
|
|
SSAUBytePtr RGB256k;
|
|
SSAUBytePtr BaseColors;
|
|
|
|
SSAInt numSpans;
|
|
SSAInt numBlocks;
|
|
SSAInt startX;
|
|
SSAInt startY;
|
|
SSAValue fullSpans; // TriFullSpan[]
|
|
SSAValue partialBlocks; // TriPartialBlock[]
|
|
|
|
TriBlendMode blendmode;
|
|
bool truecolor;
|
|
bool colorfill;
|
|
int pixelsize;
|
|
};
|