raze-gles/source/common/2d/v_2ddrawer.h
Christoph Oelckers 2fa5e339fc - added GZDoom's 2D drawer to the project.
So that for anything new I don't have to bother with the awful 2D interface Build provides.
2019-10-23 22:51:11 +02:00

134 lines
3.1 KiB
C++

#ifndef __2DDRAWER_H
#define __2DDRAWER_H
#include "tarray.h"
#include "vectors.h"
#include "textures.h"
#include "renderstyle.h"
struct DrawParms;
class F2DDrawer
{
public:
enum EDrawType : uint8_t
{
DrawTypeTriangles,
DrawTypeLines,
DrawTypePoints,
};
enum ETextureFlags : uint8_t
{
DTF_Wrap = 1,
DTF_Scissor = 2,
DTF_Burn = 4,
};
// This vertex type is hardware independent and needs conversion when put into a buffer.
struct TwoDVertex
{
float x, y, z;
float u, v;
PalEntry color0;
void Set(float xx, float yy, float zz)
{
x = xx;
z = zz;
y = yy;
u = 0;
v = 0;
color0 = 0;
}
void Set(double xx, double yy, double zz, double uu, double vv, PalEntry col)
{
x = (float)xx;
z = (float)zz;
y = (float)yy;
u = (float)uu;
v = (float)vv;
color0 = col;
}
};
struct RenderCommand
{
EDrawType mType;
int mVertIndex;
int mVertCount;
int mIndexIndex;
int mIndexCount;
FTexture *mTexture;
FRemapTable *mTranslation;
PalEntry mSpecialColormap[2];
int mScissor[4];
int mDesaturate;
FRenderStyle mRenderStyle;
PalEntry mColor1; // Overlay color
ETexMode mDrawMode;
uint8_t mFlags;
RenderCommand()
{
memset(this, 0, sizeof(*this));
}
// If these fields match, two draw commands can be batched.
bool isCompatible(const RenderCommand &other) const
{
return mTexture == other.mTexture &&
mType == other.mType &&
mTranslation == other.mTranslation &&
mSpecialColormap[0].d == other.mSpecialColormap[0].d &&
mSpecialColormap[1].d == other.mSpecialColormap[1].d &&
!memcmp(mScissor, other.mScissor, sizeof(mScissor)) &&
mDesaturate == other.mDesaturate &&
mRenderStyle == other.mRenderStyle &&
mDrawMode == other.mDrawMode &&
mFlags == other.mFlags &&
mColor1.d == other.mColor1.d;
}
};
TArray<int> mIndices;
TArray<TwoDVertex> mVertices;
TArray<RenderCommand> mData;
int AddCommand(const RenderCommand *data);
void AddIndices(int firstvert, int count, ...);
bool SetStyle(FTexture *tex, DrawParms &parms, PalEntry &color0, RenderCommand &quad);
void SetColorOverlay(PalEntry color, float alpha, PalEntry &vertexcolor, PalEntry &overlaycolor);
public:
void AddTexture(FTexture *img, DrawParms &parms);
void AddPoly(FTexture *texture, FVector2 *points, int npoints,
double originx, double originy, double scalex, double scaley,
DAngle rotation, int colormap, PalEntry flatcolor, int lightlevel, uint32_t *indices, size_t indexcount);
void AddFlatFill(int left, int top, int right, int bottom, FTexture *src, bool local_origin);
void AddColorOnlyQuad(int left, int top, int width, int height, PalEntry color, FRenderStyle *style);
void AddDim(PalEntry color, float damount, int x1, int y1, int w, int h);
void AddClear(int left, int top, int right, int bottom, int palcolor, uint32_t color);
void AddLine(int x1, int y1, int x2, int y2, uint32_t color, uint8_t alpha = 255);
void AddThickLine(int x1, int y1, int x2, int y2, double thickness, uint32_t color, uint8_t alpha = 255);
void AddPixel(int x1, int y1, uint32_t color);
void Clear();
bool mIsFirstPass = true;
};
#endif