internal void GenerateBuffer <T>() where T : struct
{
All11 bufferUsage = (_bufferUsage == BufferUsage.WriteOnly) ? All11.StaticDraw : All11.DynamicDraw;
GL11.GenBuffers(1, out _bufferStore);
GL11.BindBuffer(All11.ElementArrayBuffer, _bufferStore);
GL11.BufferData <T>(All11.ElementArrayBuffer, (IntPtr)_size, (T[])_buffer, bufferUsage);
}
public void DrawUserIndexedPrimitives <T>(PrimitiveType primitiveType, T[] vertexData, int vertexOffset, int vertexCount, short[] indexData, int indexOffset, int primitiveCount) where T : struct, IVertexType
{
if (indexOffset != 0)
{
throw new NotImplementedException();
}
// Unbind the VBOs
GL11.BindBuffer(ALL11.ArrayBuffer, 0);
GL11.BindBuffer(ALL11.ElementArrayBuffer, 0);
//Create VBO if not created already
if (VboIdArray == 0)
{
GL11.GenBuffers(1, out VboIdArray);
}
if (VboIdElement == 0)
{
GL11.GenBuffers(1, out VboIdElement);
}
// Bind the VBO
GL11.BindBuffer(ALL11.ArrayBuffer, VboIdArray);
GL11.BindBuffer(ALL11.ElementArrayBuffer, VboIdElement);
////Clear previous data
GL11.BufferData(ALL11.ArrayBuffer, (IntPtr)0, (IntPtr)null, ALL11.DynamicDraw);
GL11.BufferData(ALL11.ElementArrayBuffer, (IntPtr)0, (IntPtr)null, ALL11.DynamicDraw);
//Get VertexDeclaration
var vd = VertexDeclaration.FromType(typeof(T));
//Pin data
var handle = GCHandle.Alloc(vertexData, GCHandleType.Pinned);
var handle2 = GCHandle.Alloc(vertexData, GCHandleType.Pinned);
//Buffer data to VBO; This should use stream when we move to ES2.0
GL11.BufferData(ALL11.ArrayBuffer, (IntPtr)(vd.VertexStride * GetElementCountArray(primitiveType, primitiveCount)), new IntPtr(handle.AddrOfPinnedObject().ToInt64() + (vertexOffset * vd.VertexStride)), ALL11.DynamicDraw);
GL11.BufferData(ALL11.ElementArrayBuffer, (IntPtr)(sizeof(short) * GetElementCountArray(primitiveType, primitiveCount)), indexData, ALL11.DynamicDraw);
//Setup VertexDeclaration
VertexDeclaration.PrepareForUse(vd);
//Draw
// note: GL supports only unsigned types, xna's method signature indicates signed. just ignore the sign bit.
GL11.DrawElements(PrimitiveTypeGL11(primitiveType), GetElementCountArray(primitiveType, primitiveCount), ALL11.UnsignedShort, (IntPtr)(indexOffset * sizeof(short)));
// Free resources
GL11.BindBuffer(ALL11.ArrayBuffer, 0);
GL11.BindBuffer(ALL11.ElementArrayBuffer, 0);
handle.Free();
handle2.Free();
}
public void DrawUserIndexedPrimitives <T>(PrimitiveType primitiveType, T[] vertexData, int vertexOffset, int vertexCount, uint[] indexData, int indexOffset, int primitiveCount) where T : struct, IVertexType
{
////////////////////////////
//This has not been tested//
////////////////////////////
// Unbind the VBOs
GL11.BindBuffer(ALL11.ArrayBuffer, 0);
GL11.BindBuffer(ALL11.ElementArrayBuffer, 0);
//Create VBO if not created already
if (VboIdArray == 0)
{
GL11.GenBuffers(1, out VboIdArray);
}
if (VboIdElement == 0)
{
GL11.GenBuffers(1, out VboIdElement);
}
// Bind the VBO
GL11.BindBuffer(ALL11.ArrayBuffer, VboIdArray);
GL11.BindBuffer(ALL11.ElementArrayBuffer, VboIdElement);
////Clear previous data
GL11.BufferData(ALL11.ArrayBuffer, (IntPtr)0, (IntPtr)null, ALL11.DynamicDraw);
GL11.BufferData(ALL11.ElementArrayBuffer, (IntPtr)0, (IntPtr)null, ALL11.DynamicDraw);
//Get VertexDeclaration
var vd = VertexDeclaration.FromType(typeof(T));
//Pin data
var handle = GCHandle.Alloc(vertexData, GCHandleType.Pinned);
var handle2 = GCHandle.Alloc(vertexData, GCHandleType.Pinned);
//Buffer data to VBO; This should use stream when we move to ES2.0
GL11.BufferData(ALL11.ArrayBuffer, (IntPtr)(vd.VertexStride * GetElementCountArray(primitiveType, primitiveCount)), new IntPtr(handle.AddrOfPinnedObject().ToInt64() + (vertexOffset * vd.VertexStride)), ALL11.DynamicDraw);
GL11.BufferData(ALL11.ElementArrayBuffer, (IntPtr)(sizeof(uint) * GetElementCountArray(primitiveType, primitiveCount)), indexData, ALL11.DynamicDraw);
//Setup VertexDeclaration
VertexDeclaration.PrepareForUse(vd);
//Draw
GL11.DrawElements(PrimitiveTypeGL11(primitiveType), GetElementCountArray(primitiveType, primitiveCount), ALL11.UnsignedInt248Oes, (IntPtr)(indexOffset * sizeof(uint)));
// Free resources
GL11.BindBuffer(ALL11.ArrayBuffer, 0);
GL11.BindBuffer(ALL11.ElementArrayBuffer, 0);
handle.Free();
handle2.Free();
}
internal void GenerateBuffer <T>() where T : struct
{
#if MONOMAC
BufferUsageHint bufferUsage = (_bufferUsage == BufferUsage.WriteOnly) ? BufferUsageHint.StaticDraw : BufferUsageHint.DynamicDraw;
GL.GenBuffers(1, out _bufferStore);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, _bufferStore);
GL.BufferData <T> (BufferTarget.ElementArrayBuffer, (IntPtr)_size, (T[])_buffer, bufferUsage);
#else
var bufferUsage = (_bufferUsage == BufferUsage.WriteOnly) ? All11.StaticDraw : All11.DynamicDraw;
GL11.GenBuffers(1, ref _bufferStore);
GL11.BindBuffer(All11.ElementArrayBuffer, _bufferStore);
GL11.BufferData <T>(All11.ElementArrayBuffer, (IntPtr)_size, (T[])_buffer, bufferUsage);
#endif
}
internal void GenerateBuffer <T>() where T : struct
{
var vd = VertexDeclaration.FromType(_type);
_size = vd.VertexStride * ((T[])_buffer).Length;
#if MONOMAC
BufferUsageHint bufferUsage = (_bufferUsage == BufferUsage.WriteOnly) ? BufferUsageHint.StaticDraw : BufferUsageHint.DynamicDraw;
GL.GenBuffers(1, out _bufferStore);
GL.BindBuffer(BufferTarget.ArrayBuffer, _bufferStore);
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)_size, (T[])_buffer, bufferUsage);
#else
var bufferUsage = (_bufferUsage == BufferUsage.WriteOnly) ? All11.StaticDraw : All11.DynamicDraw;
GL11.GenBuffers(1, ref _bufferStore);
GL11.BindBuffer(All11.ArrayBuffer, _bufferStore);
GL11.BufferData(All11.ArrayBuffer, (IntPtr)_size, (T[])_buffer, bufferUsage);
#endif
}
public void DrawUserPrimitives <T>(PrimitiveType primitiveType, T[] vertexData, int vertexOffset, int primitiveCount) where T : struct, IVertexType
{
// Unbind the VBOs
GL11.BindBuffer(ALL11.ArrayBuffer, 0);
GL11.BindBuffer(ALL11.ElementArrayBuffer, 0);
//Create VBO if not created already
if (VboIdArray == 0)
{
GL11.GenBuffers(1, out VboIdArray);
}
// Bind the VBO
GL11.BindBuffer(ALL11.ArrayBuffer, VboIdArray);
////Clear previous data
GL11.BufferData(ALL11.ArrayBuffer, (IntPtr)0, (IntPtr)null, ALL11.DynamicDraw);
//Get VertexDeclaration
var vd = VertexDeclaration.FromType(typeof(T));
//Pin data
var handle = GCHandle.Alloc(vertexData, GCHandleType.Pinned);
//Buffer data to VBO; This should use stream when we move to ES2.0
GL11.BufferData(ALL11.ArrayBuffer, (IntPtr)(vd.VertexStride * GetElementCountArray(primitiveType, primitiveCount)), vertexData, ALL11.DynamicDraw);
//Setup VertexDeclaration
VertexDeclaration.PrepareForUse(vd);
//Draw
GL11.DrawArrays(PrimitiveTypeGL11(primitiveType), vertexOffset, GetElementCountArray(primitiveType, primitiveCount));
// Free resources
GL11.BindBuffer(ALL11.ArrayBuffer, 0);
GL11.BindBuffer(ALL11.ElementArrayBuffer, 0);
handle.Free();
}
public static bool arglSetupTextureGeometry(ARGL_CONTEXT_SETTINGS contextSettings)
{
float ty_prev, tx, ty;
float y_prev, x, y;
double x1, x2, y1, y2;
float xx1, xx2, yy1, yy2;
int i, j;
int vertexCount, t2count, v2count;
float imageSizeX, imageSizeY;
float zoom;
// Delete previous geometry, unless this is our first time here.
if (contextSettings.textureGeometryHasBeenSetup)
{
GL1.DeleteBuffers(1, ref contextSettings.t2bo);
GL1.DeleteBuffers(1, ref contextSettings.v2bo);
contextSettings.textureGeometryHasBeenSetup = false;
}
// Set up the geometry for the surface which we will texture upon.
imageSizeX = (float)contextSettings.arParam.xsize;
imageSizeY = (float)contextSettings.arParam.ysize;
zoom = contextSettings.zoom;
if (contextSettings.disableDistortionCompensation)
{
vertexCount = 4;
}
else
{
vertexCount = 840; // 20 rows of 2 x 21 vertices.
}
contextSettings.t2 = new float[2 * vertexCount];
contextSettings.v2 = new float[2 * vertexCount];
t2count = v2count = 0;
if (contextSettings.disableDistortionCompensation)
{
contextSettings.t2[t2count++] = 0.0f; // Top-left.
contextSettings.t2[t2count++] = 0.0f;
contextSettings.v2[v2count++] = 0.0f;
contextSettings.v2[v2count++] = imageSizeY * zoom;
contextSettings.t2[t2count++] = 0.0f; // Bottom-left.
contextSettings.t2[t2count++] = imageSizeY / (float)contextSettings.textureSizeY;
contextSettings.v2[v2count++] = 0.0f;
contextSettings.v2[v2count++] = 0.0f;
contextSettings.t2[t2count++] = imageSizeX / (float)contextSettings.textureSizeX; // Top-right.
contextSettings.t2[t2count++] = 0.0f;
contextSettings.v2[v2count++] = imageSizeX * zoom;
contextSettings.v2[v2count++] = imageSizeY * zoom;
contextSettings.t2[t2count++] = imageSizeX / (float)contextSettings.textureSizeX; // Bottom-right.
contextSettings.t2[t2count++] = imageSizeY / (float)contextSettings.textureSizeY;
contextSettings.v2[v2count++] = imageSizeX * zoom;
contextSettings.v2[v2count++] = 0.0f;
}
else
{
y = 0.0f;
ty = 0.0f;
for (j = 1; j <= 20; j++) // Do 20 rows of triangle strips.
{
y_prev = y;
ty_prev = ty;
y = imageSizeY * (float)j / 20.0f;
ty = y / (float)contextSettings.textureSizeY;
for (i = 0; i <= 20; i++) // 21 columns of triangle strip vertices, 2 vertices per column.
{
x = imageSizeX * (float)i / 20.0f;
tx = x / (float)contextSettings.textureSizeX;
arParamObserv2Ideal(contextSettings.arParam.dist_factor, (double)x, (double)y_prev, out x1, out y1, contextSettings.arParam.dist_function_version);
arParamObserv2Ideal(contextSettings.arParam.dist_factor, (double)x, (double)y, out x2, out y2, contextSettings.arParam.dist_function_version);
xx1 = (float)x1 * zoom;
yy1 = (imageSizeY - (float)y1) * zoom;
xx2 = (float)x2 * zoom;
yy2 = (imageSizeY - (float)y2) * zoom;
contextSettings.t2[t2count++] = tx; // Top.
contextSettings.t2[t2count++] = ty_prev;
contextSettings.v2[v2count++] = xx1;
contextSettings.v2[v2count++] = yy1;
contextSettings.t2[t2count++] = tx; // Bottom.
contextSettings.t2[t2count++] = ty;
contextSettings.v2[v2count++] = xx2;
contextSettings.v2[v2count++] = yy2;
} // columns.
} // rows.
}
// Now setup VBOs.
GL1.GenBuffers(1, out contextSettings.t2bo);
GL1.GenBuffers(1, out contextSettings.v2bo);
GL1.BindBuffer(All1.ArrayBuffer, contextSettings.t2bo);
GL1.BufferData(All1.ArrayBuffer, new IntPtr((sizeof(float) * 2 * vertexCount)), contextSettings.t2, All1.StaticDraw);
GL1.BindBuffer(All1.ArrayBuffer, contextSettings.v2bo);
GL1.BufferData(All1.ArrayBuffer, new IntPtr((sizeof(float) * 2 * vertexCount)), contextSettings.v2, All1.StaticDraw);
GL1.BindBuffer(All1.ArrayBuffer, 0);
contextSettings.textureGeometryHasBeenSetup = true;
return(true);
}
