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Apus.Engine.Draw.pas
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// Implementation of common drawing interface (system-independent)
//
// Copyright (C) 2011 Apus Software ([email protected])
// This file is licensed under the terms of BSD-3 license (see license.txt)
// This file is a part of the Apus Game Engine (http://apus-software.com/engine/)
{$R-}
unit Apus.Engine.Draw;
interface
uses Types, Apus.Engine.Types, Apus.Geom3D, Apus.Engine.API;
type
TDrawer=class(TInterfacedObject,IDrawer)
zPlane:double; // default Z value for all primitives
constructor Create;
// Drawing methods
procedure Line(x1,y1,x2,y2:single;color:cardinal);
procedure Polyline(points:PPoint2;cnt:integer;color:cardinal;closed:boolean=false);
procedure Polygon(points:PPoint2;cnt:integer;color:cardinal);
procedure Rect(x1,y1,x2,y2:NativeInt;color:cardinal); overload;
procedure Rect(x1,y1,x2,y2:single;color:cardinal); overload;
procedure RRect(x1,y1,x2,y2:single;color:cardinal;r:single=2;steps:integer=0); overload;
procedure RRect(x1,y1,x2,y2:single;width,r:single;color:cardinal;steps:integer=0); overload;
procedure RoundRect(center:TPoint2s;width,height:single;radius,borderWidth:single;borderColor,fillColor:cardinal); overload;
procedure RoundRect(x1,y1,x2,y2:single;radius,borderWidth:single;borderColor,fillColor:cardinal); overload;
procedure FillRect(x1,y1,x2,y2:NativeInt;color:cardinal); overload;
procedure FillRect(x1,y1,x2,y2:single;color:cardinal); overload;
procedure FillRRect(x1,y1,x2,y2:NativeInt;color:cardinal;r:single=2;steps:integer=0); overload;
procedure FillRRect(x1,y1,x2,y2:single;color:cardinal;r:single=2;steps:integer=0); overload;
procedure FillTriangle(x1,y1,x2,y2,x3,y3:single;color1,color2,color3:cardinal);
procedure ShadedRect(x1,y1,x2,y2,depth:integer;light,dark:cardinal);
procedure TexturedRect(r:TRect;texture:TTexture;color:cardinal=$FF808080); overload;
procedure TexturedRect(x1,y1,x2,y2:integer;texture:TTexture;u1,v1,u2,v2,u3,v3:single;color:cardinal=$FF808080); overload;
procedure FillGradrect(x1,y1,x2,y2:integer;color1,color2:cardinal;vertical:boolean);
procedure Image(x_,y_:NativeInt;tex:TTexture;color:cardinal=$FF808080); overload;
procedure Image(x,y,scale:single;tex:TTexture;color:cardinal=$FF808080;pivotX:single=0;pivotY:single=0); overload;
procedure ImageFlipped(x_,y_:integer;tex:TTexture;flipHorizontal,flipVertical:boolean;color:cardinal=$FF808080);
procedure Centered(x,y:NativeInt;tex:TTexture;color:cardinal=$FF808080); overload;
procedure Centered(x,y,scale:single;tex:TTexture;color:cardinal=$FF808080); overload;
procedure ImagePart(x_,y_:integer;tex:TTexture;color:cardinal;r:TRect);
procedure ImagePart90(x_,y_:integer;tex:TTexture;color:cardinal;r:TRect;ang:integer);
procedure Scaled(x1,y1,x2,y2:single;image:TTexture;color:cardinal=$FF808080); overload;
procedure Scaled(x,y,scale:single;image:TTexture;color:cardinal=$FF808080); overload;
procedure RotScaled(x0,y0,scaleX,scaleY,angle:double;image:TTexture;color:cardinal=$FF808080;pivotX:single=0.5;pivotY:single=0.5); // x,y - �����
function Cover(x1,y1,x2,y2:integer;texture:TTexture;color:cardinal=$FF808080):single;
function Inside(x1,y1,x2,y2:integer;texture:TTexture;color:cardinal=$FF808080):single;
// Gradients
procedure WithGradient(const gradient:TColorGradient;stretch:boolean=false); overload;
procedure WithGradient(color1,color2:cardinal;angle,scale:single); overload;
procedure WithGradient(color1,color2:cardinal;angle:single); overload;
procedure NoGradient;
// Billboards
procedure Billboard(screenScale:boolean;pos:TPoint3s;scale:single;tex:TTexture;pivotX:single=0.5;
pivotY:single=0.5;color:cardinal=clNeutral); overload;
procedure Billboard(pos:TPoint3s;texelSize:single;tex:TTexture;pivotX:single=0.5;
pivotY:single=0.5;color:cardinal=clNeutral); overload; inline;
procedure Billboard(pos:TPoint3s;tex:TTexture;screenScale:single;
pivotX:single=0.5;pivotY:single=0.5;color:cardinal=clNeutral); overload; inline;
procedure DoubleTex(x_,y_:integer;image1,image2:TTexture;color:cardinal=$FF808080);
procedure DoubleRotScaled(x_,y_:single;scale1X,scale1Y,scale2X,scale2Y,angle:single;
image1,image2:TTexture;color:cardinal=$FF808080);
//procedure MultiTex(x1,y1,x2,y2:integer;layers:PMultiTexLayer;color:cardinal=$FF808080);
procedure TrgList(pnts:PVertex;trgcount:integer;tex:TTexture); overload;
procedure TrgList(vertices:pointer;layout:TVertexLayout;trgCount:integer;tex:TTexture); overload;
procedure TrgList3D(pnts:PVertex3D;trgcount:integer;tex:TTexture);
procedure IndexedMesh(vertices:PVertex3D;indices:PWord;trgCount,vrtCount:integer;tex:TTexture); overload;
procedure IndexedMesh(vertices:pointer;layout:TVertexLayout;indices:PWord;trgCount,vrtCount:integer;tex:TTexture); overload;
procedure IndexedMesh(vb:TVertexBuffer;ib:TIndexBuffer;tex:TTexture); overload;
procedure Particles(x,y:integer;data:PParticle;count:integer;tex:TTexture;gridSize:integer;zDist:single=0); overload;
procedure Particles(x,y:integer;data:PParticle;stride,count:integer;tex:TTexture;gridSize:integer;zDist:single=0); overload;
procedure Particles(data:PParticle;count:integer;tex:TTexture;gridSize:integer); overload;
procedure Particles(data:PParticle;stride,count:integer;tex:TTexture;gridSize:integer;sort:boolean=true); overload;
procedure Band(x,y:integer;data:PParticle;count:integer;tex:TTexture;r:TRect);
procedure EnableSoftParticles(depthRange:single;depthTex:TTexture=nil);
procedure DisableSoftParticles;
procedure SetZ(z:single);
procedure DebugScreen1;
procedure Reset;
protected
// buffers
partBuf:array of TVertex; // particles (vertices)
partInd:array of word; // quad indices (0,1,2, 0,2,3) ... persistent buffer (can only grow)
bandInd:array of word; // indices for bands drawing
neutral:TTexture; // neutral (gray) texture to keep color for non-textured primitives
useGradient:boolean; // use gradient to color primitives
gradient:TColorGradient;
stretchGradient:boolean; // stretch gradient over primitive area (i.e. use -1..1 range)
// Particles
partShader3D:TShader; // shader for 3D particles
partBuffer:TVertexBuffer; // buffer for particle data
depthTexture:TTexture; // depth texture used for soft particles
softParticlesRange:single; // depth range for fading the soft particles
procedure CalcGradient(width,height:single;out gx,gy:single); inline;
end;
var
MaxParticleCount:integer=5000;
// Singleton object
drawer:TDrawer;
implementation
uses SysUtils,Math,
Apus.Common, Apus.Images, Apus.Geom2D, Apus.Colors,
Apus.Engine.Graphics, Apus.VertexLayout;
const
// Blending modes
MODE_TEXTURED2X = 1; // single textured: use TexMode[0] (default: color=texture*diffuse*2, alpha=texture*diffuse)
MODE_COLORED = 2; // no texture: color=diffuse, alpha=diffuse
MODE_MULTITEX = 3; // multitextured: use TexMode[n] for each enabled stage
MODE_COLORED2X = 4; // textured: color=diffuse*2, alpha=texture*diffuse
// Particles Shader 3D
PART_SHADER_3D_VERT =
'#version 330 // 3D particles '#13#10+
'uniform mat4 MVP; '#13#10+
'uniform vec3 vecDown; '#13#10+
'uniform vec3 vecRight; '#13#10+
''#13#10+
'layout (location=0) in vec2 vertex; '#13#10+
'layout (location=1) in vec3 position; '#13#10+
'layout (location=2) in vec3 extra; '#13#10+
'layout (location=3) in vec4 color; '#13#10+
'layout (location=4) in vec2 uv1; '#13#10+
'layout (location=5) in vec2 uv2; '#13#10+
'out vec4 vColor; '#13#10+
'out vec2 uv; '#13#10+
''#13#10+
'void main(void) { '#13#10+
' float size = extra.x; '#13#10+
' float angle = extra.z; '#13#10+
' float c = cos(angle); '#13#10+
' float s = sin(angle); '#13#10+
' vec2 v = vertex*size; '#13#10+
' v = v*mat2(c,-s,s,c); '#13#10+
' vec3 pos=position+vecRight*v.x+vecDown*v.y; '#13#10+
' gl_Position = MVP*vec4(pos,1.0); '#13#10+
' vColor = color; '#13#10+
' uv.x = mix(uv1.x,uv2.x,vertex.x+0.5); '#13#10+
' uv.y = mix(uv1.y,uv2.y,vertex.y+0.5); '#13#10+
'}';
PART_SHADER_3D_FRAG =
'#version 330 // 3D particles '#13#10+
'uniform sampler2D tex0; '#13#10+
'uniform sampler2D depthTex; '#13#10+
'uniform float softRange; '#13#10+
'in vec4 vColor; '#13#10+
'in vec2 uv; '#13#10+
'out vec4 fragColor; '#13#10+
''#13#10+
'void main(void) {'#13#10+
' float alpha=1.0; '#13#10+
' if (softRange>0.0) { '#13#10+
' vec2 depthUV = gl_FragCoord.xy/vec2(textureSize(depthTex,0)); '#13#10+
' float delta = texture(depthTex,depthUV).r-gl_FragCoord.z; '#13#10+
' alpha = smoothstep(0,softRange,delta); '#13#10+
' } '#13#10+
' fragColor = texture(tex0,uv)*vColor*vec4(2.0,2.0,2.0,alpha);'#13#10+
' if (fragColor.a<0.01) discard;'#13#10+
'}';
{ TBasicPainter }
constructor TDrawer.Create;
var
pw:^word;
i:integer;
begin
ForceLogMessage('Creating '+self.ClassName);
zPlane:=0;
drawer:=self;
draw:=self;
// Init buffers
setLength(partBuf,4*MaxParticleCount);
setLength(partInd,6*MaxParticleCount);
pw:=@partInd[0];
for i:=0 to MaxParticleCount-1 do begin
pw^:=i*4; inc(pw);
pw^:=i*4+1; inc(pw);
pw^:=i*4+2; inc(pw);
pw^:=i*4; inc(pw);
pw^:=i*4+2; inc(pw);
pw^:=i*4+3; inc(pw);
end;
setLength(bandInd,4*MaxParticleCount);
neutral:=AllocImage(4,4);
neutral.name:='_neutral_';
neutral.Clear($FF808080);
shader.UseTexture(neutral);
partShader3D:=shader.Build(PART_SHADER_3D_VERT,PART_SHADER_3D_FRAG);
end;
{
function TDrawer.GetClipping: TRect;
begin
result:=clipRect;
end;
procedure TDrawer.NoClipping;
begin
cliprect:=screenRect;
scnt:=0;
end;
procedure TDrawer.OverrideClipping;
begin
if scnt>=15 then exit;
inc(scnt);
saveclip[scnt]:=cliprect;
ClipRect:=screenRect;
end; }
procedure TDrawer.CalcGradient(width,height:single; out gx,gy:single);
begin
if stretchGradient then begin
gx:=1; gy:=1;
end else begin
gx:=width/2; gy:=height/2;
end;
end;
procedure TDrawer.Centered(x, y, scale: single; tex: TTexture;
color: cardinal);
begin
RotScaled(x,y,scale,scale,0,tex,color);
end;
procedure TDrawer.Image(x, y, scale: single; tex: TTexture;
color: cardinal; pivotX, pivotY: single);
begin
if scale=1.0 then
Image(round(x-tex.width*pivotX),round(y-tex.height*pivotY),tex,color)
else
RotScaled(x,y,scale,scale,0,tex,color,pivotX,pivotY);
end;
procedure TDrawer.Centered(x,y:NativeInt;tex:TTexture;color:cardinal=$FF808080);
begin
Image(x-tex.width div 2,y-tex.height div 2,tex,color);
end;
procedure TDrawer.Image(x_, y_:NativeInt; tex:TTexture; color:cardinal);
var
vrt:array[0..3] of TVertex;
dx,dy:single;
begin
ASSERT(tex<>nil);
if not clippingAPI.Prepare(x_,y_,x_+tex.width-1,y_+tex.height-1) then exit;
shader.UseTexture(tex);
dx:=tex.width;
dy:=tex.height;
vrt[0].Init(x_-0.5,y_-0.5, zPlane,tex.u1,tex.v1,color);
vrt[1].Init(x_+dx-0.5,y_-0.5, zPlane,tex.u2,tex.v1,color);
vrt[2].Init(x_+dx-0.5,y_+dy-0.5,zPlane,tex.u2,tex.v2,color);
vrt[3].Init(x_-0.5,y_+dy-0.5, zPlane,tex.u1,tex.v2,color);
renderDevice.Draw(TRG_FAN,2,@vrt,TVertex.LayoutTex);
end;
procedure TDrawer.ImageFlipped(x_,y_:integer;tex:TTexture;flipHorizontal,flipVertical:boolean;color:cardinal=$FF808080);
var
vrt:array[0..3] of TVertex;
dx,dy:single;
begin
ASSERT(tex<>nil);
if not clippingAPI.Prepare(x_,y_,x_+tex.width-1,y_+tex.height-1) then exit;
shader.UseTexture(tex);
dx:=tex.width;
dy:=tex.height;
vrt[0].Init(x_-0.5,y_-0.5, zPlane, tex.u1,tex.v1,color);
vrt[1].Init(x_+dx-0.5,y_-0.5, zPlane, tex.u2,tex.v1,color);
vrt[2].Init(x_+dx-0.5,y_+dy-0.5,zPlane, tex.u2,tex.v2,color);
vrt[3].Init(x_-0.5,y_+dy-0.5, zPlane, tex.u1,tex.v2,color);
if flipHorizontal then begin
Swap(vrt[0].u,vrt[1].u);
Swap(vrt[2].u,vrt[3].u);
end;
if flipVertical then begin
Swap(vrt[0].v,vrt[3].v);
Swap(vrt[1].v,vrt[2].v);
end;
renderDevice.Draw(TRG_FAN,2,@vrt,TVertex.LayoutTex);
end;
procedure TDrawer.ImagePart(x_, y_: integer; tex: TTexture;
color: cardinal; r: TRect);
var
vrt:array[0..3] of TVertex;
w,h:integer;
begin
w:=abs(r.width)-1;
h:=abs(r.height)-1;
if tex.caps and tfScaled>0 then begin
w:=round(w+1)-1;
h:=round(h+1)-1;
end;
if not clippingAPI.Prepare(x_,y_,x_+w-1,y_+h-1) then exit;
shader.UseTexture(tex);
vrt[0].Init(x_-0.5,y_-0.5, zPlane, tex.u1+tex.stepU*2*r.left,tex.v1+tex.stepV*2*r.Top,color);
vrt[1].Init(x_+w+0.5,y_-0.5, zPlane, tex.u1+tex.stepU*r.Right*2,tex.v1+tex.stepV*r.top*2,color);
vrt[2].Init(x_+w+0.5,y_+h+0.5, zPlane, tex.u1+tex.stepU*r.Right*2,tex.v1+tex.stepV*r.Bottom*2,color);
vrt[3].Init(x_-0.5,y_+h+0.5, zPlane, tex.u1+tex.stepU*r.left*2,tex.v1+tex.stepV*r.Bottom*2,color);
renderDevice.Draw(TRG_FAN,2,@vrt,TVertex.LayoutTex);
end;
procedure TDrawer.ImagePart90(x_,y_:integer;tex:TTexture;
color:cardinal;r:TRect;ang:integer);
var
vrt:array[0..3] of TVertex;
i,w,h:integer;
begin
if ang and 1=1 then begin
h:=r.Right-r.Left-1;
w:=r.Bottom-r.top-1;
end else begin
w:=r.Right-r.Left-1;
h:=r.Bottom-r.top-1;
end;
if not clippingAPI.Prepare(x_,y_,x_+w-1,y_+h-1) then exit;
shader.UseTexture(tex);
with vrt[(0-ang) and 3] do begin
x:=x_-0.5; y:=y_-0.5; z:=zPlane;
end;
with vrt[0] do begin
u:=tex.u1+tex.stepU*2*r.left; v:=tex.v1+tex.stepV*2*r.Top;
end;
with vrt[(1-ang) and 3] do begin
x:=x_+w+0.5; y:=y_-0.5; z:=zPlane;
end;
with vrt[1] do begin
u:=tex.u1+tex.stepU*r.Right*2; v:=tex.v1+tex.stepV*r.top*2;
end;
with vrt[(2-ang) and 3] do begin
x:=x_+w+0.5; y:=y_+h+0.5; z:=zPlane;
end;
with vrt[2] do begin
u:=tex.u1+tex.stepU*r.Right*2; v:=tex.v1+tex.stepV*r.Bottom*2;
end;
with vrt[(3-ang) and 3] do begin
x:=x_-0.5; y:=y_+h+0.5; z:=zPlane;
end;
with vrt[3] do begin
u:=tex.u1+tex.stepU*r.left*2; v:=tex.v1+tex.stepV*r.Bottom*2;
end;
for i:=0 to 3 do vrt[i].color:=color;
renderDevice.Draw(TRG_FAN,2,@vrt,TVertex.LayoutTex);
end;
procedure TDrawer.Billboard(screenScale:boolean;pos:TPoint3s;scale:single;tex:TTexture;
pivotX,pivotY:single;color:cardinal);
var
p2:TPoint3s;
vrt:array[0..3] of TVertex;
rVec,dVec:TVector3s;
depth,bbWidth,bbHeight:single; // billboard dimension in world space
begin
depth:=transformationAPI.Depth(pos);
if depth<transformationAPI.MinDepth then exit;
ASSERT(tex<>nil);
shader.UseTexture(tex);
rVec:=transformationAPI.RightVec;
dVec:=transformationAPI.DownVec;
bbWidth:=scale*tex.width;
bbHeight:=scale*tex.height;
pos:=PointAdd(pos,rVec,bbWidth*(pivotX-1));
pos:=PointAdd(pos,dVec,-bbHeight*pivotY);
vrt[0].Init(pos.x,pos.y,pos.z, tex.u1,tex.v1,color);
p2:=PointAdd(pos,rVec,bbWidth);
vrt[1].Init(p2.x,p2.y,p2.z, tex.u2,tex.v1,color);
p2:=PointAdd(p2,dVec,bbHeight);
vrt[2].Init(p2.x,p2.y,p2.z, tex.u2,tex.v2,color);
p2:=PointAdd(pos,dVec,bbHeight);
vrt[3].Init(p2.x,p2.y,p2.z, tex.u1,tex.v2,color);
renderDevice.Draw(TRG_FAN,2,@vrt,TVertex.LayoutTex);
end;
procedure TDrawer.Billboard(pos:TPoint3s;tex:TTexture;screenScale:single;
pivotX,pivotY:single;color:cardinal);
begin
Billboard(false,pos,screenScale,tex,pivotX,pivotY,color);
end;
procedure TDrawer.Billboard(pos:TPoint3s;texelSize:single;tex:TTexture;
pivotX,pivotY:single;color:cardinal);
begin
Billboard(true,pos,texelSize,tex,pivotX,pivotY,color);
end;
procedure TDrawer.Line(x1, y1, x2, y2: single; color: cardinal);
var
vrt:array[0..1] of TVertex;
begin
if not clippingAPI.Prepare(min2s(x1,x2),min2s(y1,y2),max2s(x1,x2),max2s(y1,y2)) then exit;
shader.UseTexture(neutral);
vrt[0].Init(x1,y1,zPlane,color);
vrt[1].Init(x2,y2,zPlane,color);
renderDevice.Draw(LINE_LIST,1,@vrt[0],TVertex.layoutTex);
end;
procedure TDrawer.Polyline(points:PPoint2;cnt:integer;color:cardinal;closed:boolean=false);
var
vrt:array of TVertex;
i:integer;
pnt:PPoint2;
minX,minY,maxX,maxY:integer;
begin
minX:=10000; minY:=10000; maxX:=-10000; maxY:=-10000;
SetLength(vrt,cnt+1);
pnt:=points;
for i:=0 to cnt-1 do begin
vrt[i].Init(pnt.x,pnt.y,zPlane,color);
if pnt.x<minX then minX:=trunc(pnt.x);
if pnt.y<minY then minY:=trunc(pnt.y);
if pnt.x>maxX then maxX:=trunc(pnt.x)+1;
if pnt.y>maxY then maxY:=trunc(pnt.y)+1;
inc(pnt);
end;
if not clippingAPI.Prepare(minX,minY,maxX,maxY) then exit;
shader.UseTexture(neutral);
if closed then vrt[cnt]:=vrt[0];
renderDevice.Draw(LINE_STRIP,cnt-1+byte(closed),@vrt[0],TVertex.layoutTex);
end;
procedure TDrawer.DoubleTex(x_, y_: integer; image1, image2: TTexture;color: cardinal);
var
w,h:integer;
vrt:array[0..3] of TVertexDT;
au1,au2,bu1,bu2,av1,av2,bv1,bv2:single;
begin
ASSERT((image1<>nil) and (image2<>nil));
w:=min2(image1.width,image2.width);
h:=min2(image1.height,image2.height);
if not clippingAPI.Prepare(x_,y_,x_+w,y_+h) then exit;
shader.UseTexture(image1,0);
shader.UseTexture(image2,1);
au1:=image1.u1; au2:=image1.u1+w*image1.stepU*2;
av1:=image1.v1; av2:=image1.v1+h*image1.stepV*2;
bu1:=image2.u1; bu2:=image2.u1+w*image2.stepU*2;
bv1:=image2.v1; bv2:=image2.v1+h*image2.stepV*2;
vrt[0].Init(
x_-0.5,y_-0.5,zPlane,
au1,av1, bu1,bv1,
color);
vrt[1].Init(
x_+w-0.5,y_-0.5,zPlane,
au2,av1, bu2,bv1,
color);
vrt[2].Init(
x_+w-0.5,y_+h-0.5,zPlane,
au2,av2, bu2,bv2,
color);
vrt[3].Init(
x_-0.5,y_+h-0.5,zPlane,
au1,av2, bu1,bv2,
color);
renderDevice.Draw(TRG_FAN,2,@vrt,TVertexDT.Layout);
end;
procedure TDrawer.DoubleRotScaled(x_,y_:single;scale1X,scale1Y,scale2X,scale2Y,angle:single;
image1,image2:TTexture;color:cardinal=$FF808080);
var
w,h,w2,h2:single;
vrt:array[0..3] of TVertexDT;
c,s:single;
au1,au2,bu1,bu2,av1,av2,bv1,bv2,u,v:single;
begin
ASSERT((image1<>nil) and (image2<>nil));
w:=(image1.width)/2*scale1X;
h:=(image1.height)/2*scale1Y;
w2:=(image2.width)/2*scale2X;
h2:=(image2.height)/2*scale2Y;
if w2<w then w:=w2;
if h2<h then h:=h2;
if not clippingAPI.Prepare(x_-h-w,y_-h-w,x_+h+w,y_+h+w) then exit;
x_:=x_-0.5; y_:=y_-0.5;
// Тут надо что-то придумать умное, чтобы не было заблуренности
{ if abs(round(w)-w)>0.1 then begin
x_:=x_+0.5*cos(angle);
y_:=y_+0.5*sin(angle);
end;
if abs(round(h)-h)>0.1 then begin
x_:=x_+0.5*sin(angle);
y_:=y_+0.5*cos(angle);
end;}
shader.UseTexture(image1,0);
shader.UseTexture(image2,1);
au1:=image1.u1; au2:=image1.u2;
av1:=image1.v1; av2:=image1.v2;
bu1:=image2.u1; bu2:=image2.u2;
bv1:=image2.v1; bv2:=image2.v2;
scale1X:=w/(scale1X*(image1.width)/2);
u:=0.5*(au2-au1)*(1-scale1X);
au1:=image1.u1+image1.stepU*u;
au2:=image1.u2-image1.stepU*u;
scale1Y:=h/(scale1Y*(image1.height)/2);
v:=0.5*(av2-av1)*(1-scale1Y);
av1:=image1.v1+image1.stepV+v;
av2:=image1.v2-image1.stepV-v;
scale2X:=w/(scale2X*(image2.width)/2);
u:=0.5*(bu2-bu1)*(1-scale2X);
bu1:=image2.u1+image2.stepU+u;
bu2:=image2.u2-image2.stepU-u;
scale2Y:=h/(scale2Y*(image2.height)/2);
v:=0.5*(bv2-bv1)*(1-scale2Y);
bv1:=image2.v1+image2.stepV+v;
bv2:=image2.v2-image2.stepV-v;
c:=cos(angle); s:=sin(angle);
h:=-h;
vrt[0].Init(
x_-w*c-h*s,y_+h*c-w*s,zPlane,
au1,av1, bu1,bv1,
color);
vrt[1].Init(
x_+w*c-h*s,y_+h*c+w*s,zPlane,
au2,av1, bu2,bv1,
color);
vrt[2].Init(
x_+w*c+h*s,y_-h*c+w*s,zPlane,
au2,av2, bu2,bv2,
color);
vrt[3].Init(
x_-w*c+h*s,y_-h*c-w*s,zPlane,
au1,av2,bu1,bv2,
color);
renderDevice.Draw(TRG_FAN,2,@vrt,TVertexDT.Layout);
end;
(* Obsolete, probably should not be used
procedure TDrawer.MultiTex(x1, y1, x2, y2: integer; layers:PMultiTexLayer; color: cardinal);
var
vrt:array[0..3] of TScrPoint8;
lr:array[0..7] of TMultiTexLayer;
i,lMax:integer;
// cnt:integer;
// ïåðåâåñòè ìàòðèöó èç ïîëíîãî ìàñøòàáà ê ìàñøòàáó èçîáðàæåíèÿ â ìåòàòåêñòóðå
procedure AdjustMatrix(const texture:TTexture;var matrix:TMatrix32s);
var
sx,sy,dx,dy:single;
i:integer;
begin
with texture do begin
sx:=u2-u1; sy:=v2-v1;
dx:=u1; dy:=v1;
end;
for i:=0 to 2 do begin
matrix[i,0]:=matrix[i,0]*sx;
matrix[i,1]:=matrix[i,1]*sy;
end;
matrix[2,0]:=matrix[2,0]+dx;
matrix[2,1]:=matrix[2,1]+dy;
end;
begin
if not SetStates(1,types.Rect(x1,y1,x2+1,y2+1)) then exit;
// Copy layers data to modify later
for i:=0 to High(lr) do begin
lMax:=i;
lr[i]:=layers^;
layers:=layers.next;
if layers=nil then break;
end;
// fillchar(vrt,sizeof(vrt),0);
with vrt[0] do begin
x:=x1-0.5; y:=y1-0.5; z:=0; rhw:=1; diffuse:=color;
for i:=0 to lMax do begin
uv[i,0]:=0; uv[i,1]:=0;
end;
end;
with vrt[1] do begin
x:=x2+0.5; y:=y1-0.5; z:=0; rhw:=1; diffuse:=color;
for i:=0 to lMax do begin
uv[i,0]:=1; uv[i,1]:=0;
end;
end;
with vrt[2] do begin
x:=x2+0.5; y:=y2+0.5; z:=0; rhw:=1; diffuse:=color;
for i:=0 to lMax do begin
uv[i,0]:=1; uv[i,1]:=1;
end;
end;
with vrt[3] do begin
x:=x1-0.5; y:=y2+0.5; z:=0; rhw:=1; diffuse:=color;
for i:=0 to lMax do begin
uv[i,0]:=0; uv[i,1]:=1;
end;
end;
for i:=0 to lMax do
with lr[i] do begin
if texture=nil then break;
UseTexture(texture,i);
if texture.caps and tfTexture=0 then AdjustMatrix(texture,matrix);
MultPnts(matrix,PPoint2s(@vrt[0].uv[i,0]),4,sizeof(TScrPoint8));
MultPnts(matrix,PPoint2s(@vrt[0].uv[i,1]),4,sizeof(TScrPoint8));
if i>0 then begin
glClientActiveTexture(GL_TEXTURE0+i);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
end;
glTexCoordPointer(2,GL_FLOAT,sizeof(TScrPoint8),@vrt[0].uv[i]);
end;
glClientActiveTexture(GL_TEXTURE0);
glVertexPointer(3,GL_FLOAT,sizeof(TScrPoint3),@vrt);
glColorPointer(4,GL_UNSIGNED_BYTE,sizeof(TScrPoint3),@vrt[0].color);
// glTexCoordPointer(2,GL_FLOAT,sizeof(TScrPoint3),@vrt[0].u);
glDrawArrays(GL_TRIANGLE_FAN,0,4);
for i:=1 to lMax do begin
glClientActiveTexture(GL_TEXTURE0+i);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
end;
// Вообще-то это должен делать вызывающий код
glActiveTexture(GL_TEXTURE1);
glDisable(GL_TEXTURE_2D);
glActiveTexture(GL_TEXTURE0);
glClientActiveTexture(GL_TEXTURE0);
end; *)
procedure TDrawer.Polygon(points: PPoint2; cnt: integer; color: cardinal);
type
ta=array[0..5] of TPoint2;
var
vrt:array of TVertex;
i,n:integer;
pnts:^ta;
minx,miny,maxx,maxy:single;
begin
n:=cnt-2;
if n<1 then exit;
SetLength(vrt,n*3);
Triangulate(points,cnt);
pnts:=pointer(points);
minx:=1000; miny:=1000; maxx:=0; maxy:=0;
for i:=0 to cnt-1 do begin
if pnts[i].x<minx then minx:=pnts[i].x;
if pnts[i].x>maxx then maxx:=pnts[i].x;
if pnts[i].y<miny then miny:=pnts[i].y;
if pnts[i].y>maxy then maxy:=pnts[i].y;
end;
for i:=0 to n*3-1 do
with pnts^[trgIndices[i]] do
vrt[i].Init(x,y,zPlane,color);
if not clippingAPI.Prepare(minX,minY,maxX,maxY) then exit;
shader.UseTexture(neutral);
renderDevice.Draw(TRG_LIST,n,@vrt[0],TVertex.layoutTex);
end;
procedure TDrawer.RotScaled(x0,y0,scaleX,scaleY,angle:double;image:TTexture;
color:cardinal=$FF808080;pivotX:single=0.5;pivotY:single=0.5);
var
vrt:array[0..3] of TVertex;
u1,v1,u2,v2,w,h,c,s:single;
wc1,hs1,hc1,ws1,wc2,hs2,hc2,ws2:single;
begin
ASSERT(image<>nil);
w:=(image.width)*scaleX;
h:=(image.height)*scaleY;
if not clippingAPI.Prepare(x0-h-w,y0-h-w,x0+h+w,y0+h+w) then exit;
if angle<>0 then begin
c:=cos(angle); s:=sin(angle);
end else begin
c:=1; s:=0;
end;
x0:=x0-0.5; y0:=Y0-0.5;
if image.width and 1=1 then begin
x0:=x0+0.5*c;
y0:=y0+0.5*s;
end;
if image.height and 1=1 then begin
x0:=x0+0.5*s;
y0:=y0+0.5*c;
end;
shader.UseTexture(image);
u1:=image.u1; u2:=image.u2;
v1:=image.v1; v2:=image.v2;
h:=-h;
wc2:=w*c; wc1:=wc2*pivotX; wc2:=wc2-wc1;
ws2:=w*s; ws1:=ws2*pivotX; ws2:=ws2-ws1;
hc2:=h*c; hc1:=hc2*pivotY; hc2:=hc2-hc1;
hs2:=h*s; hs1:=hs2*pivotY; hs2:=hs2-hs1;
vrt[0].Init(x0-wc1-hs1, y0+hc1-ws1, zPlane, u1, v1, color);
vrt[1].Init(x0+wc2-hs1, y0+hc1+ws2, zPlane, u2, v1, color);
vrt[2].Init(x0+wc2+hs2, y0-hc2+ws2, zPlane, u2, v2, color);
vrt[3].Init(x0-wc1+hs2, y0-hc2-ws1, zPlane, u1, v2, color);
renderDevice.Draw(TRG_FAN,2,@vrt,TVertex.layoutTex);
end;
procedure TDrawer.RoundRect(center:TPoint2s;width,height,radius,borderWidth:single;
borderColor,fillColor:cardinal);
const
rShader=
' uniform vec4 bColor;'#13#10+
' uniform vec2 offset;'#13#10+
' uniform vec4 tresh;'#0+
' vec2 rr = max(abs(vTexCoord)-offset,0.0);'#13#10+
' float r = dot(rr,rr);'#13#10+
' float alpha=1.0-smoothstep(tresh.x, tresh.y, r);'#13#10+
' vec4 color = mix(vColor.bgra,bColor,smoothstep(tresh.z,tresh.w,r)); '#13#10+
' fragColor = vec4(color.rgb, color.a*alpha); ';
var
vrt:array[0..3] of TVertex;
sx1,sy1,sx2,sy2,w,h:single;
begin
w:=(width+1)/2; h:=(height+1)/2;
sx1:=center.x-w; sx2:=center.x+w;
sy1:=center.y-h; sy2:=center.y+h;
if not clippingAPI.Prepare(sx1,sy1,sx2,sy2) then exit;
if radius<0 then radius:=0;
borderWidth:=Clamp(borderWidth,0,radius-1);
if fillColor=0 then fillColor:=borderColor and $FFFFFF;
shader.UseCustomized(rShader,0);
shader.SetUniform('bColor',TShader.VectorFromColor(borderColor));
shader.SetUniform('offset',TVector2s.Init(w-radius,h-radius));
shader.SetUniform('tresh',TVector4s.Init(sqr(radius-1),sqr(radius),sqr(radius-borderWidth-1),sqr(radius-borderWidth)));
vrt[0].Init(sx1,sy1,0,-w,-h,fillColor);
vrt[1].Init(sx2,sy1,0,w,-h,fillColor);
vrt[2].Init(sx2,sy2,0,w,h,fillColor);
vrt[3].Init(sx1,sy2,0,-w,h,fillColor);
renderDevice.Draw(TRG_FAN,2,@vrt,TVertex.layoutTex);
shader.Reset;
end;
procedure TDrawer.RoundRect(x1,y1,x2,y2:single;radius,borderWidth:single;borderColor,fillColor:cardinal);
begin
RoundRect(TPoint2s.Init((x1+x2)*0.5,(y1+y2)*0.5),abs(x2-x1+1),abs(y2-y1+1),radius,borderWidth,borderColor,fillColor);
end;
procedure TDrawer.Scaled(x1, y1, x2, y2: single; image: TTexture;
color: cardinal);
var
vrt:array[0..3] of TVertex;
v,u1,v1,u2,v2:single;
begin
if not clippingAPI.Prepare(x1,y1,x2,y2) then exit;
x1:=x1-0.01; y1:=y1-0.01;
x2:=x2-0.01; y2:=y2-0.01;
shader.UseTexture(image);
u1:=image.u1+image.StepU; u2:=image.u2-image.stepU;
v1:=image.v1+image.StepV; v2:=image.v2-image.stepV;
if x1>x2 then begin
v:=x1; x1:=x2; x2:=v;
v:=u1; u1:=u2; u2:=v;
end;
if y1>y2 then begin
v:=y1; y1:=y2; y2:=v;
v:=v1; v1:=v2; v2:=v;
end;
vrt[0].Init(x1,y1, zPlane, u1, v1, color);
vrt[1].Init(x2,y1, zPlane, u2, v1, color);
vrt[2].Init(x2,y2, zPlane, u2, v2, color);
vrt[3].Init(x1,y2, zPlane, u1, v2, color);
renderDevice.Draw(TRG_FAN,2,@vrt,TVertex.layoutTex);
end;
procedure TDrawer.Scaled(x,y,scale:single; image:TTexture; color:cardinal);
begin
RotScaled(x,y,scale,scale,0,image,color);
end;
procedure TDrawer.SetZ(z:single);
begin
zPlane:=z;
end;
procedure TDrawer.TrgList(pnts: PVertex; trgcount: integer;
tex: TTexture);
begin
clippingAPI.Prepare;
if tex=nil then tex:=neutral;
shader.UseTexture(tex);
renderDevice.Draw(TRG_LIST,trgcount,pnts,TVertex.LayoutTex);
end;
procedure TDrawer.TrgList(vertices:pointer;layout:TVertexLayout;trgCount:integer;tex:TTexture);
begin
clippingAPI.Prepare;
if tex=nil then tex:=neutral;
shader.UseTexture(tex);
renderDevice.Draw(TRG_LIST,trgcount,vertices,layout);
end;
procedure TDrawer.TrgList3D(pnts: PVertex3D; trgcount: integer;
tex: TTexture);
begin
clippingAPI.Prepare;
if tex=nil then tex:=neutral;
shader.UseTexture(tex);
renderDevice.Draw(TRG_LIST,trgcount,pnts,TVertex3D.Layout);
end;
procedure TDrawer.WithGradient(const gradient:TColorGradient;stretch:boolean=false);
begin
useGradient:=true;
self.gradient:=gradient;
stretchGradient:=stretch;
end;
procedure TDrawer.WithGradient(color1,color2:cardinal;angle,scale:single);
var
grad:TColorGradient;
begin
grad.Init(color1,color2,angle,scale);
WithGradient(grad,false);
end;
procedure TDrawer.WithGradient(color1,color2:cardinal;angle:single);
var
grad:TColorGradient;
begin
grad.Init(color1,color2,angle,1);
WithGradient(grad,true);
end;
procedure TDrawer.NoGradient;
begin
useGradient:=false;
end;
procedure TDrawer.IndexedMesh(vertices:PVertex3D;indices:PWord;trgCount,vrtCount:integer;tex:TTexture);
begin
clippingAPI.Prepare;
if tex=nil then tex:=neutral;
shader.UseTexture(tex);
renderDevice.DrawIndexed(TRG_LIST,vertices,indices,TVertex3D.layout,
0,vrtCount,0,trgCount);
end;
procedure TDrawer.IndexedMesh(vertices:pointer;layout:TVertexLayout;indices:PWord;trgCount,vrtCount:integer;tex:TTexture);
begin
clippingAPI.Prepare;
if tex=nil then tex:=neutral;
shader.UseTexture(tex);
renderDevice.DrawIndexed(TRG_LIST,vertices,indices,layout,0,vrtCount,0,trgCount);
end;
procedure TDrawer.IndexedMesh(vb:TVertexBuffer;ib:TIndexBuffer;tex:TTexture);
begin
clippingAPI.Prepare;
if tex=nil then tex:=neutral;
shader.UseTexture(tex);
gfx.resman.UseVertexBuffer(vb);
gfx.resman.UseIndexBuffer(ib);
renderDevice.DrawIndexed(TRG_LIST,nil,nil,vb.layout,0,vb.count,0,ib.count div 3);
gfx.resman.UseVertexBuffer(nil);
gfx.resman.UseIndexBuffer(nil);
end;
procedure TDrawer.Rect(x1,y1,x2,y2:NativeInt;color:cardinal);
var
vrt:array[0..4] of TVertex;
begin
if not clippingAPI.Prepare(x1,y1,x2+1,y2+1) then exit;
shader.UseTexture(neutral);
vrt[0].Init(x1,y1,zPlane,color);
vrt[1].Init(x2,y1,zPlane,color);
vrt[2].Init(x2,y2,zPlane,color);
vrt[3].Init(x1,y2,zPlane,color);
vrt[4]:=vrt[0];
renderDevice.Draw(LINE_STRIP,4,@vrt,TVertex.layoutTex);
end;
procedure TDrawer.Rect(x1,y1,x2,y2:single;color:cardinal);
begin
Rect(SRound(x1),SRound(y1),SRound(x2),SRound(y2),color);
end;
procedure TDrawer.Reset;
begin
end;
procedure TDrawer.RRect(x1,y1,x2,y2:single;color:cardinal;r:single=2;steps:integer=0);
var
i:integer;
vrt:array[0..54] of TVertex;
a,dx,dy:single;
begin
if not clippingAPI.Prepare(x1,y1,x2+1,y2+1) then exit;
shader.UseTexture(neutral);
if steps=0 then steps:=Clamp(round(r*0.6),1,12);
vrt[0].Init(x1+r,y1,zPlane,color);
vrt[1].Init(x2-r,y1,zPlane,color);
vrt[1+steps].Init(x2,y1+r,zPlane,color);
vrt[2+steps].Init(x2,y2-r,zPlane,color);
vrt[2+steps*2].Init(x2-r,y2,zPlane,color);
vrt[3+steps*2].Init(x1+r,y2,zPlane,color);
vrt[3+steps*3].Init(x1,y2-r,zPlane,color);
vrt[4+steps*3].Init(x1,y1+r,zPlane,color);
vrt[4+steps*4]:=vrt[0];
for i:=1 to steps-1 do begin
a:=0.5*Pi*(i/steps);
dx:=r*sin(a); dy:=r*cos(a);
vrt[1+i].Init(x2-r+dx,y1+r-dy,zPlane,color);
vrt[2+steps+i].Init(x2-r+dy,y2-r+dx,zPlane,color);
vrt[3+steps*2+i].Init(x1+r-dx,y2-r+dy,zPlane,color);
vrt[4+steps*3+i].Init(x1+r-dy,y1+r-dx,zPlane,color);
end;
renderDevice.Draw(LINE_STRIP,4+steps*4,@vrt,TVertex.layoutTex);
end;
procedure TDrawer.RRect(x1,y1,x2,y2:single;width,r:single;color:cardinal;steps:integer=0);
var
i,b:integer;
vrt:array[0..99] of TVertex;
a,dx,dy,ca,sa:single;
begin
if not clippingAPI.Prepare(x1,y1,x2+1,y2+1) then exit;
shader.UseTexture(neutral);
r:=r+0.4; x2:=x2+0.5; x1:=x1-0.5; y1:=y1-0.5; y2:=y2+0.5;
if steps=0 then steps:=Clamp(round(r*0.4),1,10);
b:=(steps+1)*2;
for i:=0 to steps do begin
a:=0.5*Pi*i/steps;
ca:=cos(a); sa:=sin(a);
// inner
dx:=(r-width)*ca; dy:=(r-width)*sa;
vrt[i*2].Init(x1+r-dx,y1+r-dy,zPlane,color);
vrt[i*2+b].Init(x2-r+dy,y1+r-dx,zPlane,color);
vrt[i*2+b*2].Init(x2-r+dx,y2-r+dy,zPlane,color);
vrt[i*2+b*3].Init(x1+r-dy,y2-r+dx,zPlane,color);
// outer
dx:=r*ca; dy:=r*sa;
vrt[i*2+1].Init(x1+r-dx,y1+r-dy,zPlane,color);
vrt[i*2+b+1].Init(x2-r+dy,y1+r-dx,zPlane,color);
vrt[i*2+b*2+1].Init(x2-r+dx,y2-r+dy,zPlane,color);
vrt[i*2+b*3+1].Init(x1+r-dy,y2-r+dx,zPlane,color);
end;
vrt[b*4]:=vrt[0];
vrt[b*4+1]:=vrt[1];
renderDevice.Draw(TRG_STRIP,(steps+1)*8,@vrt,TVertex.layoutTex);
end;
procedure TDrawer.FillGradrect(x1, y1, x2, y2: integer; color1,
color2: cardinal; vertical: boolean);
var
vrt:array[0..3] of TVertex;
begin
if not clippingAPI.Prepare(x1,y1,x2+1,y2+1) then exit;
shader.UseTexture(neutral);
vrt[0].Init(x1-0.5,y1-0.5,zPlane,color1);
vrt[1].Init(x2+0.5,y1-0.5,zPlane,color1);
vrt[2].Init(x2+0.5,y2+0.5,zPlane,color2);
vrt[3].Init(x1-0.5,y2+0.5,zPlane,color1);
if vertical then vrt[3].color:=color2
else vrt[1].color:=color2;
renderDevice.Draw(TRG_FAN,2,@vrt,TVertex.layoutTex);
end;
procedure TDrawer.FillTriangle(x1,y1,x2,y2,x3,y3:single;color1,color2,color3:cardinal);
var
vrt:array[0..2] of TVertex;
begin
shader.UseTexture(neutral);
vrt[0].Init(x1-0.5,y1-0.5,zPlane,color1);
vrt[1].Init(x2-0.5,y2-0.5,zPlane,color2);
vrt[2].Init(x3-0.5,y3-0.5,zPlane,color3);
renderDevice.Draw(TRG_LIST,1,@vrt,TVertex.layoutTex);
end;
procedure TDrawer.FillRect(x1,y1,x2,y2:NativeInt;color:cardinal);
var
vrt:array[0..3] of TVertex;