public RenderableMinimap(Terrain parent, RenderableHeightMap renderableheightmap) // note could upgrade this to use Isomething later, but Terrain works for now
{
this.parent = parent;
this.renderableheightmap = renderableheightmap;
Gl.glGenTextures(1, out minimaptexture);
RendererSdl.GetInstance().WriteNextFrameEvent += new WriteNextFrameCallback(RenderableMinimap_WriteNextFrameEvent);
}
void RenderableMinimap_WriteNextFrameEvent(Vector3 camerapos)
{
//Console.WriteLine( "RenderableMinimap_WriteNextFrameEvent" );
GetDimensions();
GraphicsHelperGl g = new GraphicsHelperGl();
g.CheckError();
//LogFile.GetInstance().WriteLine( windowwidth + " " + windowheight + " " + RendererSdl.GetInstance().OuterWindowWidth + " " + RendererSdl.GetInstance().OuterWindowHeight );
g.ApplyOrtho(windowwidth, windowheight, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight);
g.CheckError();
DrawMinimap();
g.CheckError();
DrawFrustrum(camerapos);
g.CheckError();
if (Render != null)
{
Render(minimapx, minimapy, minimapwidth, minimapheight);
}
g.CheckError();
g.RemoveOrtho();
g.CheckError();
}
// returns byte buffer in raw RGBA format, 32bits per pixel
// opengl needs to be initialized for this to run
// normally the renderer is initialized before anything else (in MapDesigner.cs), so this should be ok
public byte[] CreateUnitPic(string s3ofilepath, int width, int height)
{
int picturewidth = 96;
int pictureheight = 96;
GraphicsHelperGl g = new GraphicsHelperGl();
Unit unit = new S3oLoader().LoadS3o(s3ofilepath);
Gl.glViewport(0, 0, picturewidth, pictureheight); // Set Our Viewport (Match Texture Size)
//Gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // Set The Clear Color To Medium Blue
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPushMatrix();
Gl.glLoadIdentity();
Glu.gluPerspective(60.0, (float)picturewidth / (float)pictureheight, 0.1, 1000.0);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
/*
* float[] ambientLight = new float[] { 1.0f, 1.0f, 1.0f, 1.0f };
* float[] diffuseLight = new float[] { 0.6f, 0.6f, 0.6f, 1.0f };
* float[] specularLight = new float[] { 0.2f, 0.2f, 0.2f, 1.0f };
* float[] position = new float[] { -1.5f, 1.0f, -4.0f, 1.0f };
*
* Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_AMBIENT, ambientLight);
* Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_DIFFUSE, diffuseLight);
* Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_SPECULAR, specularLight);
* Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_POSITION, position);
*/
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT); // Clear The Screen And Depth Buffer
Gl.glPushMatrix();
Gl.glLoadIdentity();
Gl.glRotated(-20, 0, 1, 0);
Gl.glTranslated(-8, -8, -27);
Gl.glRotated(-90, 1, 0, 0);
Gl.glEnable(Gl.GL_LIGHTING);
unit.Render();
Gl.glPopMatrix();
//g.Bind2DTexture(0);
//Gl.glDeleteTextures(2, new int[] { unittexture1, unittexture2 });
Gl.glViewport(0, 0, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight);
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPopMatrix();
Gl.glMatrixMode(Gl.GL_MODELVIEW);
g.CheckError();
byte[] buffer = new byte[pictureheight * picturewidth * 4];
IntPtr ptr = Marshal.AllocHGlobal(picturewidth * pictureheight * 4);
Gl.glReadPixels(0, 0, picturewidth, pictureheight, Gl.GL_RGBA, Gl.GL_UNSIGNED_BYTE, ptr);
Marshal.Copy(ptr, buffer, 0, picturewidth * pictureheight * 4);
Marshal.FreeHGlobal(ptr);
// flip
/* or not
* byte[] newbuffer = new byte[pictureheight * picturewidth * 4];
* for (int x = 0; x < picturewidth; x++)
* {
* for (int y = 0; y < picturewidth; y++)
* {
* for (int i = 0; i < 4; i++)
* {
* newbuffer[( pictureheight - y - 1 ) * picturewidth * 4 + x * 4 + i] = buffer[y * picturewidth * 4 + x * 4 + i];
* }
* }
* }
*/
return(buffer);
}
// determine which chunks are used by each texture stage
// only affects blend really
void CacheChunkTextureStageUsage()
{
int numxchunks = width / chunksize;
int numychunks = height / chunksize;
chunkusestexturestage = new Dictionary <MapTextureStage, bool[, ]>();
foreach (MapTextureStage maptexturestage in maptexturestages)
{
chunkusestexturestage.Add(maptexturestage, new bool[numxchunks, numychunks]);
}
for (int chunkx = 0; chunkx < numxchunks; chunkx++)
{
for (int chunky = 0; chunky < numychunks; chunky++)
{
// Console.WriteLine("chunk " + chunkx + " " + chunky);
for (int texturestageindex = 0; texturestageindex < maptexturestages.Count; texturestageindex++)
{
MapTextureStage texturestage = maptexturestages[texturestageindex];
//Console.WriteLine("texturestage " + texturestageindex + " " + texturestage.Operation );
if (texturestage.Operation == MapTextureStage.OperationType.Blend)
{
bool texturestageused = false;
// go through each point in chunk and check if texturestage is used
for (int mapx = chunkx * chunksize; mapx < (chunkx + 1) * chunksize && !texturestageused;
mapx++)
{
for (int mapy = chunky * chunksize; mapy < (chunky + 1) * chunksize && !texturestageused;
mapy++)
{
if (texturestage.Affects(mapx, mapy, width, height))
{
texturestageused = true;
}
}
}
chunkusestexturestage[texturestage][chunkx, chunky] = texturestageused;
// if (chunkusestexturestage[texturestageindex][chunkx, chunky])
//{
// Console.WriteLine("texturestage used: " + texturestageindex + " " + chunkx + " " + chunky);
//}
}
else if (texturestage.Operation == MapTextureStage.OperationType.Nop)
{
chunkusestexturestage[texturestage][chunkx, chunky] = false;
}
else
{
//Console.WriteLine("RenderableHeightMap,, cache chunk usage, true");
chunkusestexturestage[texturestage][chunkx, chunky] = true;
}
}
}
}
maxtexels = RendererSdl.GetInstance().MaxTexelUnits;
int totaltexturestagesneeded = 0;
foreach (MapTextureStage maptexturestage in maptexturestages)
{
totaltexturestagesneeded += maptexturestage.NumTextureStagesRequired;
}
multipass = false;
if (totaltexturestagesneeded > maxtexels)
{
multipass = true;
}
rendererpasses = new List <RendererPass>();
//maxtexels = 2;
//int currenttexel = 0;
multipass = true; // force multipass for now for simplicity
if (multipass)
{
for (int i = 0; i < maptexturestages.Count; i++)
{
MapTextureStage maptexturestage = maptexturestages[i];
int numtexturestagesrequired = maptexturestage.NumTextureStagesRequired;
if (numtexturestagesrequired > 0) // exclude Nops
{
RendererPass rendererpass = new RendererPass(maxtexels);
for (int j = 0; j < maptexturestage.NumTextureStagesRequired; j++)
{
rendererpass.AddStage(new RendererTextureStage(maptexturestage, j, true, width, height));
}
rendererpasses.Add(rendererpass);
}
}
}
}
// what we need to do is to render the splatted texture in ortho mode with lighting off
// or normals off (to be tested)
// then to export the generated bitmap
// viewport should be set to heightmapwidth x heightmapheight
public void Export(string filepath)
{
Terrain terrain = Terrain.GetInstance();
int picturewidth = terrain.MapWidth * Terrain.SquareSize;
int pictureheight = terrain.MapHeight * Terrain.SquareSize;
LogFile.GetInstance().WriteLine("Export to " + filepath + " picturewidth " + picturewidth + " pictureheight: " + pictureheight);
//int windowwidth = RendererSdl.GetInstance().WindowWidth;
//int windowheight = RendererSdl.GetInstance().WindowHeight;
int windowwidth = 256;
int windowheight = 256;
Gl.glViewport(0, 0, windowwidth, windowheight);
byte[] buffer = new byte[windowwidth * windowheight * 4];
//System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap( picturewidth, pictureheight );
//byte[] imagedata = new byte[picturewidth * pictureheight * 4];
Image image = new Image(picturewidth, pictureheight);
List <RendererPass> rendererpasses = new List <RendererPass>();
bool multipass = true; // force multipass for now for simplicity
int maxtexels = RendererSdl.GetInstance().MaxTexelUnits;
if (multipass)
{
for (int i = 0; i < terrain.texturestages.Count; i++)
{
MapTextureStage maptexturestage = terrain.texturestages[i];
int numtexturestagesrequired = maptexturestage.NumTextureStagesRequired;
if (numtexturestagesrequired > 0) // exclude Nops
{
RendererPass rendererpass = new RendererPass(maxtexels);
for (int j = 0; j < maptexturestage.NumTextureStagesRequired; j++)
{
rendererpass.AddStage(new RendererTextureStage(maptexturestage, j, true, picturewidth, pictureheight));
}
rendererpasses.Add(rendererpass);
}
}
}
GraphicsHelperGl g = new GraphicsHelperGl();
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPushMatrix();
Gl.glLoadIdentity();
Gl.glOrtho(0, windowwidth, windowheight, 0, -1, 1);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glPushMatrix();
Gl.glLoadIdentity();
Gl.glDisable(Gl.GL_CULL_FACE);
Gl.glDisable(Gl.GL_LIGHTING);
g.EnableBlendSrcAlpha();
Gl.glDepthFunc(Gl.GL_LEQUAL);
for (int chunkx = 0; chunkx < Math.Ceiling((double)picturewidth / windowwidth); chunkx++)
{
for (int chunky = 0; chunky < Math.Ceiling((double)pictureheight / windowheight); chunky++)
{
Console.WriteLine("chunkx " + chunkx + " chunky " + chunky);
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT); // Clear The Screen And Depth Buffer
foreach (RendererPass rendererpass in rendererpasses)
{
rendererpass.Apply();
Gl.glBegin(Gl.GL_QUADS);
double ul = (chunkx * windowwidth);
double ur = (chunkx * windowwidth + windowwidth);
double vt = (chunky * windowheight);
double vb = (chunky * windowheight + windowheight);
Gl.glTexCoord2d(ul, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vt);
Gl.glVertex2i(0, 0);
Gl.glTexCoord2d(ul, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vb);
Gl.glVertex2i(0, windowheight);
Gl.glTexCoord2d(ur, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vb);
Gl.glVertex2i(windowwidth, windowheight);
Gl.glTexCoord2d(ur, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vt);
Gl.glVertex2i(windowwidth, 0);
Gl.glEnd();
}
IntPtr ptr = Marshal.AllocHGlobal(windowwidth * windowheight * 4);
Gl.glReadPixels(0, 0, windowwidth, windowheight, Gl.GL_RGBA, Gl.GL_UNSIGNED_BYTE, ptr);
Marshal.Copy(ptr, buffer, 0, windowwidth * windowheight * 4);
Marshal.FreeHGlobal(ptr);
for (int x = 0; x < windowwidth; x++)
{
for (int y = 0; y < windowheight; y++)
{
if ((chunky * windowheight + y < pictureheight) &&
(chunkx * windowwidth + x < picturewidth))
{
int pixeloffset = (windowheight - y - 1) * windowwidth * 4 + x * 4;
//bitmap.SetPixel(x + chunkx * windowwidth, y + chunky * windowheight, System.Drawing.Color.FromArgb(buffer[pixeloffset + 0],
//buffer[pixeloffset + 1], buffer[pixeloffset + 2]));
image.SetPixel(x + chunkx * windowwidth, y + chunky * windowheight,
buffer[pixeloffset + 0],
buffer[pixeloffset + 1],
buffer[pixeloffset + 2],
255
);
}
}
}
}
}
if (File.Exists(filepath))
{
File.Delete(filepath);
}
image.Save(filepath);
//DevIL.DevIL.SaveBitmap( filepath, bitmap);
Gl.glPopMatrix();
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPopMatrix();
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glEnable(Gl.GL_LIGHTING);
g.ActiveTexture(1);
g.DisableTexture2d();
g.SetTextureScale(1);
g.ActiveTexture(0);
g.SetTextureScale(1);
Gl.glEnable(Gl.GL_CULL_FACE);
Gl.glEnable(Gl.GL_LIGHTING);
Gl.glDisable(Gl.GL_BLEND);
g.EnableModulate();
Gl.glViewport(0, 0, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight);
g.CheckError();
MainUI.GetInstance().uiwindow.InfoMessage("Exported blended terrain texture to " + filepath);
}
// note to self: move this to subscriber?
void DrawMinimap()
{
Terrain terrain = Terrain.GetInstance();
if (DateTime.Now.Subtract(LastMinimapUpdate).TotalMilliseconds > 1000)
//if( true )
{
List <RendererPass> rendererpasses = new List <RendererPass>();
bool multipass = true; // force multipass for now for simplicity
int maxtexels = RendererSdl.GetInstance().MaxTexelUnits;
if (multipass)
{
for (int i = 0; i < terrain.texturestages.Count; i++)
{
MapTextureStage maptexturestage = terrain.texturestages[i];
int numtexturestagesrequired = maptexturestage.NumTextureStagesRequired;
if (numtexturestagesrequired > 0) // exclude Nops
{
RendererPass rendererpass = new RendererPass(maxtexels);
for (int j = 0; j < maptexturestage.NumTextureStagesRequired; j++)
{
rendererpass.AddStage(new RendererTextureStage(maptexturestage, j, true, mapwidth * Terrain.SquareSize, mapheight * Terrain.SquareSize));
}
rendererpasses.Add(rendererpass);
}
}
}
GraphicsHelperGl g = new GraphicsHelperGl();
//g.ApplyOrtho(windowwidth, windowheight, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight);
g.EnableBlendSrcAlpha();
Gl.glDepthFunc(Gl.GL_LEQUAL);
int chunkwidth = minimapwidth / numchunks;
int chunkheight = minimapheight / numchunks;
float[] ambientLight = new float[] { 0.4f, 0.4f, 0.4f, 1.0f };
float[] diffuseLight = new float[] { 0.6f, 0.6f, 0.6f, 1.0f };
float[] specularLight = new float[] { 0.2f, 0.2f, 0.2f, 1.0f };
float[] position = new float[] { -1.0f, 0.2f, -0.4f, 1.0f };
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_AMBIENT, ambientLight);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_DIFFUSE, diffuseLight);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_SPECULAR, specularLight);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_POSITION, position);
foreach (RendererPass rendererpass in rendererpasses)
{
rendererpass.Apply();
for (int x = 0; x + chunkwidth < minimapwidth; x += chunkwidth)
{
for (int y = 0; y + chunkheight < minimapheight; y += chunkheight)
{
Gl.glBegin(Gl.GL_QUADS);
//double ul = 0;
//double ur = mapwidth * Terrain.SquareSize;
//double vt = 0;
//double vb = mapheight * Terrain.SquareSize;
double ul = (double)x / minimapwidth * mapwidth * Terrain.SquareSize;
double ur = (double)(x + chunkwidth) / minimapwidth * mapwidth * Terrain.SquareSize;
double vt = (double)y / minimapheight * mapheight * Terrain.SquareSize;
double vb = (double)(y + chunkheight) / minimapheight * mapheight * Terrain.SquareSize;
double xl = minimapx + x;
double xr = minimapx + x + minimapwidth / (double)numchunks;
double yt = minimapy + y;
double yb = minimapy + y + minimapheight / (double)numchunks;
Gl.glTexCoord2d(ul, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vt);
g.Normal(renderableheightmap.GetNormal(x * mapwidth / minimapwidth, y * mapheight / minimapheight));
//g.Normal(renderableheightmap.normalsperquad[, ]);
Gl.glVertex2d(xl, yt);
Gl.glTexCoord2d(ul, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vb);
g.Normal(renderableheightmap.GetNormal(x * mapwidth / minimapwidth, (y + chunkheight) * mapheight / minimapheight));
//g.Normal( renderableheightmap.normalsperquad[x * mapwidth / minimapwidth, (y + 1) * mapheight / minimapheight ] );
Gl.glVertex2d(xl, yb);
Gl.glTexCoord2d(ur, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vb);
g.Normal(renderableheightmap.GetNormal((x + chunkwidth) * mapwidth / minimapwidth, (y + chunkheight) * mapheight / minimapheight));
//g.Normal(renderableheightmap.normalsperquad[(x + 1) * mapwidth / minimapwidth, (y + 1) * mapheight / minimapheight]);
Gl.glVertex2d(xr, yb);
Gl.glTexCoord2d(ur, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vt);
g.Normal(renderableheightmap.GetNormal((x + chunkwidth) * mapwidth / minimapwidth, y * mapheight / minimapheight));
//g.Normal(renderableheightmap.normalsperquad[(x + 1) * mapwidth / minimapwidth, y * mapheight / minimapheight]);
Gl.glVertex2d(xr, yt);
Gl.glEnd();
}
}
}
g.ActiveTexture(0);
Gl.glBindTexture(Gl.GL_TEXTURE_2D, minimaptexture);
Gl.glCopyTexImage2D(Gl.GL_TEXTURE_2D, 0, Gl.GL_RGBA8, minimapx,
RendererSdl.GetInstance().InnerWindowHeight - minimapy - minimapsize,
minimapsize, minimapsize, 0);
Gl.glTexParameteri(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_MIN_FILTER, Gl.GL_NEAREST);
LastMinimapUpdate = DateTime.Now;
// g.RemoveOrtho();
g.ActiveTexture(1);
g.DisableTexture2d();
g.SetTextureScale(1);
g.ActiveTexture(0);
g.SetTextureScale(1);
g.EnableModulate();
Gl.glDisable(Gl.GL_BLEND);
}
else
{
GraphicsHelperGl g = new GraphicsHelperGl();
//Gl.glMatrixMode(Gl.GL_PROJECTION);
//Gl.glPushMatrix();
//Gl.glLoadIdentity();
//Gl.glOrtho(0, windowwidth, windowheight - RendererSdl.GetInstance().OuterWindowHeight, 0, -1, 1); // we'll just draw the minimap directly onto our display
//Gl.glOrtho(0, windowwidth, windowheight, windowheight - RendererSdl.GetInstance().OuterWindowHeight, -1, 1); // we'll just draw the minimap directly onto our display
//Gl.glMatrixMode(Gl.GL_MODELVIEW);
//Gl.glPushMatrix();
//Gl.glLoadIdentity();
g.ActiveTexture(0);
g.EnableTexture2d();
Gl.glBindTexture(Gl.GL_TEXTURE_2D, minimaptexture);
//Gl.glBindTexture(Gl.GL_TEXTURE_2D, (terrain.texturestages[0].texture as GlTexture).GlReference);
Gl.glDisable(Gl.GL_LIGHTING);
Gl.glBegin(Gl.GL_QUADS);
Gl.glTexCoord2d(0, 1);
Gl.glVertex2i(minimapx, minimapy);
Gl.glTexCoord2d(0, 1 - minimapwidth / (double)minimapsize);
Gl.glVertex2i(minimapx, minimapy + minimapheight);
Gl.glTexCoord2d(minimapwidth / (double)minimapsize, 1 - minimapheight / (double)minimapsize);
Gl.glVertex2i(minimapx + minimapwidth, minimapy + minimapheight);
Gl.glTexCoord2d(minimapwidth / (double)minimapsize, 1);
Gl.glVertex2i(minimapx + minimapwidth, minimapy);
Gl.glEnd();
Gl.glEnable(Gl.GL_LIGHTING);
//Gl.glMatrixMode(Gl.GL_PROJECTION);
//Gl.glPopMatrix();
//Gl.glMatrixMode(Gl.GL_MODELVIEW);
//Gl.glPopMatrix();
}
}