} // 当前输出的画布的像素单精度浮点数个数
public Renderer(int bufferW = 512, int bufferH = 512, PixelFormat outPixelFormat = PixelFormat.Format24bppRgb)
{
this.BackBufferWidth = bufferW;
this.BackBufferHeight = bufferH;
this.OutPxielFormat = outPixelFormat;
this.OutPixelFormatSize = GetDevicePixelSize(outPixelFormat);
this.defaultFrameBuffer = new FrameBuffer(bufferW, bufferH);
this.FrameBuffer = this.defaultFrameBuffer; // using default buffer
this.frontBuffer = new Buffer_Color(bufferW, bufferH);
State = new RendererState(this);
GlobalState = new GlobalRenderSstate();
Rasterizer = new Rasterizer(this);
ShaderData = new ShaderData(1);
ShaderMgr = new ShaderLoadMgr(this);
if (Instance == null)
{
Instance = this;
}
}
private void FullScreenBlurHandle()
{
if (!GlobalState.fullscreen_blur)
{
return;
}
var w = BackBufferWidth;
var h = BackBufferHeight;
var backbuffer = FrameBuffer.Attachment.ColorBuffer[0];
if (blur_src_buffer == null ||
blur_src_buffer.Len != w * h)
{
blur_src_buffer = new Buffer_Color(w, h);
}
backbuffer.CopyTo(blur_src_buffer);
var sampleOffset = new int[]
{ //x, y
// 1
-1, 0,
1, 0,
0, 1,
0, -1,
-1, -1,
1, -1,
-1, 1,
1, 1,
};
var sampleCount = sampleOffset.Length;
var half_sampleCount = sampleCount / 2;
var maxOX = w - 1;
var maxOY = h - 1;
var resampleCount = GlobalState.fullscreen_blur_resample_count;
for (int x = 0; x < w; x++)
{
for (int y = 0; y < h; y++)
{
var srcPosColor = backbuffer.Get(x, y);
for (int rs = 0; rs < resampleCount; rs++)
{
for (int i = 0; i < sampleCount; i += 2)
{
var ox = sampleOffset[i] * (rs + 1) + x;
var oy = sampleOffset[i + 1] * (rs + 1) + y;
if (ox < 0)
{
ox = 0;
}
if (ox > maxOX)
{
ox = maxOX;
}
if (oy < 0)
{
oy = 0;
}
if (oy > maxOY)
{
oy = maxOY;
}
srcPosColor += blur_src_buffer[ox, oy];
}
}
srcPosColor /= half_sampleCount * resampleCount + 1;
FrameBuffer.WriteColor(0, x, y, srcPosColor, ColorMask.RGBA);
}
}
}
private void MSAAHandle()
{
var w = BackBufferWidth;
var h = BackBufferHeight;
var backbuffer = FrameBuffer.Attachment.ColorBuffer[0];
if (AA_src_buffer == null ||
AA_src_buffer.Len != w * h)
{
AA_src_buffer = new Buffer_Color(w, h);
}
backbuffer.CopyTo(AA_src_buffer);
var sampleOffset = new int[]
{ //x, y
// 1
-1, 0,
1, 0,
//0,1,
//0,-1,
//-1, -1,
//1, -1,
//-1, 1,
//1, 1,
};
var sampleCount = sampleOffset.Length;
var half_sampleCount = sampleCount / 2;
var maxOX = w - 1;
var maxOY = h - 1;
var resampleCount = GlobalState.aa_resample_count;
for (int i = 0; i < AA_edge_count; i += 2)
{
var x = AA_edgePosList[i];
var y = AA_edgePosList[i + 1];
var srcPosColor = backbuffer.Get(x, y);
for (int rs = 0; rs < resampleCount; rs++)
{
for (int j = 0; j < sampleCount; j += 2)
{
var ox = sampleOffset[j] * (rs + 1) + x;
var oy = sampleOffset[j + 1] * (rs + 1) + y;
if (ox < 0)
{
ox = 0;
}
if (ox > maxOX)
{
ox = maxOX;
}
if (oy < 0)
{
oy = 0;
}
if (oy > maxOY)
{
oy = maxOY;
}
srcPosColor += AA_src_buffer[ox, oy];
}
}
srcPosColor /= half_sampleCount * resampleCount + 1;
FrameBuffer.WriteColor(0, x, y, srcPosColor, ColorMask.RGBA);
}
}
private void AAEdgePickup()
{
var depthbuff = FrameBuffer.Attachment.DepthBuffer;
var w = BackBufferWidth;
var h = BackBufferHeight;
if (AA_edgePosList == null ||
AA_edgePosList.Length != w * h)
{
AA_edgePosList = new int[w * h];
}
AA_edge_count = 0;
var sampleOffset = new int[]
{ //x, y
// 1
//-1, -1,
//1, -1,
-1, 1,
1, 1,
};
var sampleCount = sampleOffset.Length;
var maxOX = w - 1;
var maxOY = h - 1;
var edgeColor = Vector4.red;
var edge_thresold = GlobalState.edge_thresold;
var show_edge = GlobalState.show_edge;
var backbuffer = FrameBuffer.Attachment.ColorBuffer[0];
for (int x = 0; x < w; x++)
{
for (int y = 0; y < h; y++)
{
var depth = depthbuff.Get(x, y);
var isEdge = false;
for (int i = 0; i < sampleCount; i += 2)
{
var ox = sampleOffset[i] + x;
var oy = sampleOffset[i + 1] + y;
if (ox < 0)
{
ox = 0;
}
if (ox > maxOX)
{
ox = maxOX;
}
if (oy < 0)
{
oy = 0;
}
if (oy > maxOY)
{
oy = maxOY;
}
var offsetDepth = depthbuff.Get(ox, oy);
if (float.IsNaN(depth))
{
if (float.IsNaN(offsetDepth))
{
continue;
}
else
{
isEdge = true;
break;
}
}
else
{
if (float.IsNaN(offsetDepth))
{
isEdge = true;
break;
}
}
if (Math.Abs(depth - offsetDepth) > edge_thresold)
{
isEdge = true;
break;
}
}
if (isEdge)
{
if (show_edge)
{
FrameBuffer.WriteColor(0, x, y, edgeColor, ColorMask.RGBA);
}
AA_edgePosList[AA_edge_count] = x;
AA_edgePosList[AA_edge_count + 1] = y;
AA_edge_count += 2;
}
}
}
}
public void Clear(ClearFlag flag = ClearFlag.ColorBuffer | ClearFlag.DepthBuffer | ClearFlag.StencilBuffer)
{
FrameBuffer.Clear(flag);
}
