static void Test()
{
const int length = 17;
var array = new UnmanagedArray<float>(length);
unsafe
{
var p = (float*)array.Header.ToPointer();
for (int i = 0; i < length; i++)
{
p[i] = i + length;
}
array.Sort(comparer: Comparer<float>.Default);
//array.Sort(descending: true);
float[] p2 = new float[length];
for (int i = 0; i < length; i++)
{
p2[i] = p[i];
}
Console.WriteLine();
}
}
public void Base()
{
using (var testing = new UnmanagedArray<float>(128))
{
for (var i = 0; i < testing.Length; i++)
{
testing[i] = i;
}
for (var i = 0; i < testing.Length; i++)
{
Assert.That(testing[i], Is.EqualTo(i));
testing[i] = -1.0f;
}
var managedArray = new float[128];
for (var i = 0; i < testing.Length; i++)
{
managedArray[i] = i;
}
testing.Write(managedArray);
var managedArray2 = new float[128];
testing.Read(managedArray2);
for (var i = 0; i < testing.Length; i++)
{
Assert.That(testing[i], Is.EqualTo(i));
}
}
}
protected override void DoInitialize()
{
// Create a vertex array object
uint[] vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create and initialize a buffer object
uint[] buffers = new uint[NumVertexBuffers];
GL.GenBuffers(NumVertexBuffers, buffers);
GL.BindBuffer(GL.GL_ARRAY_BUFFER, buffers[ArrayBuffer]);
//GL.BufferData( GL.GL_ARRAY_BUFFER, sizeof(TeapotVertices), TeapotVertices, GL_STATIC_DRAW );
UnmanagedArray<vec3> positions = new UnmanagedArray<vec3>(TeapotExampleHelper.NumTeapotVertices);
for (int i = 0; i < positions.Length; i++)
{
positions[i] = TeapotExampleHelper.TeapotVertices[i];
}
GL.BufferData(BufferTarget.ArrayBuffer, positions, BufferUsage.StaticDraw);
GL.BindBuffer(GL.GL_ELEMENT_ARRAY_BUFFER, buffers[ElementBuffer]);
//GL.BufferData( GL_ELEMENT_ARRAY_BUFFER, sizeof(TeapotIndices), TeapotIndices, GL_STATIC_DRAW );
UnmanagedArray<uint> indexes = new UnmanagedArray<uint>(TeapotExampleHelper.NumTeapotPatches * 4 * 4);
for (int i = 0; i < indexes.Length; i++)
{
indexes[i] = TeapotExampleHelper.TeapotIndices[i];
}
GL.BufferData(BufferTarget.ElementArrayBuffer, indexes, BufferUsage.StaticDraw);
// Load shaders and use the resulting shader program
ShaderInfo[] shaders = new ShaderInfo[]
{
new ShaderInfo(){ type= ShaderType.VertexShader, shaderSource=ManifestResourceLoader.LoadTextFile("teapot.vert"),},
new ShaderInfo(){ type= ShaderType.TessellationControlShader, shaderSource=ManifestResourceLoader.LoadTextFile("teapot.cont"),},
//new ShaderInfo(){ type= ShaderType.TessellationEvaluationShader, shaderSource=ManifestResourceLoader.LoadTextFile("teapot.eval"),},
new ShaderInfo(){ type= ShaderType.FragmentShader, shaderSource=ManifestResourceLoader.LoadTextFile("teapot.frag"),},
};
//uint program = LoadShaders( shaders );
shaderProgramObject = shaders.LoadShaders();
GL.UseProgram(shaderProgramObject);
// set up vertex arrays
int vPosition = GL.GetAttribLocation(shaderProgramObject, "vPosition");
GL.EnableVertexAttribArray((uint)vPosition);
GL.VertexAttribPointer((uint)vPosition, 3, GL.GL_DOUBLE, false, 0, new IntPtr(0));
PLoc = GL.GetUniformLocation(shaderProgramObject, "P");
InnerLoc = GL.GetUniformLocation(shaderProgramObject, "Inner");
OuterLoc = GL.GetUniformLocation(shaderProgramObject, "Outer");
GL.Uniform1(InnerLoc, Inner);
GL.Uniform1(OuterLoc, Outer);
mat4 modelview = glm.translate(mat4.identity(), new vec3(-0.2625f, -1.575f, -1.0f));
modelview *= glm.translate(modelview, new vec3(0.0f, 0.0f, -7.5f));
GL.UniformMatrix4(GL.GetUniformLocation(shaderProgramObject, "MV"), 1, true, modelview.to_array());
GL.PatchParameter(PatchParameterName.PatchVertices, TeapotExampleHelper.NumTeapotVerticesPerPatch);
}
public HeightfieldColliderShape(int heightStickWidth, int heightStickLength, UnmanagedArray<float> dynamicFieldData, float heightScale, float minHeight, float maxHeight, bool flipQuadEdges)
{
InternalShape = new BulletSharp.HeightfieldShape(heightStickWidth, heightStickLength, dynamicFieldData.Pointer, heightScale, minHeight, maxHeight, 1, (int)BulletPhyScalarType.PhyFloat, flipQuadEdges)
{
LocalScaling = Vector3.One
};
FloatArray = dynamicFieldData;
}
public override void Dispose()
{
base.Dispose();
ShortArray?.Dispose();
ShortArray = null;
ByteArray?.Dispose();
ByteArray = null;
FloatArray?.Dispose();
FloatArray = null;
}
private void InitTexture3D()
{
int xSize = 16;
int ySize = 16;
int zSize = 16;
int minSize = Math.Min(xSize, Math.Min(ySize, zSize));
using (var data = new UnmanagedArray<float>(xSize * ySize * zSize))
{
int index=0;
for (int i = 0; i < xSize; i++)
{
for (int j = 0; j < ySize; j++)
{
for (int k = 0; k < zSize; k++)
{
//data[index++] = new vec3((float)i / xSize, (float)j / ySize, (float)k / zSize);
//data[index++] = new vec3((float)i / xSize, (float)j / ySize, (float)k / zSize);
data[index++] = (float)random.NextDouble();
}
}
}
GL.PixelStorei(GL.GL_UNPACK_ALIGNMENT, 1);
GL.GenTextures(1, this.textureName);
GL.ActiveTexture(GL.GL_TEXTURE0);
GL.BindTexture(GL.GL_TEXTURE_3D, this.textureName[0]);
GL.TexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_BASE_LEVEL, 0);
GL.TexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_MAX_LEVEL, (float)Math.Log(minSize, 2));
GL.TexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR_MIPMAP_LINEAR);
GL.TexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR);
GL.TexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP_TO_EDGE);
GL.TexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP_TO_EDGE);
GL.TexParameterf(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_WRAP_R, GL.GL_CLAMP_TO_EDGE);
GL.TexImage3D(GL.GL_TEXTURE_3D,
0,
//(int)GL.GL_R32F,
(int)GL.GL_RGB,
xSize, ySize, zSize,
0,
GL.GL_RGB, GL.GL_FLOAT,
data.Header);
GL.GenerateMipmapEXT(GL.GL_TEXTURE_3D);
GL.PixelStorei(GL.GL_UNPACK_ALIGNMENT, 4);
}
}
private void InitVAO()
{
this.mode = DrawMode.Quads;
this.vertexCount = 4;
// Create a vertex buffer for the vertex data.
UnmanagedArray<vec3> in_Position = new UnmanagedArray<vec3>(this.vertexCount);
UnmanagedArray<vec2> in_TexCoord = new UnmanagedArray<vec2>(this.vertexCount);
Bitmap bigBitmap = this.ttfTexture.BigBitmap;
float factor = (float)this.ttfTexture.BigBitmap.Width / (float)this.ttfTexture.BigBitmap.Height;
float x1 = -factor;
float x2 = factor;
float y1 = -1;
float y2 = 1;
in_Position[0] = new vec3(x1, y1, 0);
in_Position[1] = new vec3(x2, y1, 0);
in_Position[2] = new vec3(x2, y2, 0);
in_Position[3] = new vec3(x1, y2, 0);
in_TexCoord[0] = new vec2(0, 0);
in_TexCoord[1] = new vec2(1, 0);
in_TexCoord[2] = new vec2(1, 1);
in_TexCoord[3] = new vec2(0, 1);
if (vao[0] != 0)
{ GL.DeleteBuffers(1, vao); }
if (vbo[0] != 0)
{ GL.DeleteBuffers(vbo.Length, vbo); }
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
GL.GenBuffers(2, vbo);
uint in_PositionLocation = shaderProgram.GetAttributeLocation(strin_Position);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo[0]);
GL.BufferData(BufferTarget.ArrayBuffer, in_Position, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_PositionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_PositionLocation);
uint in_TexCoordLocation = shaderProgram.GetAttributeLocation(strin_TexCoord);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo[1]);
GL.BufferData(BufferTarget.ArrayBuffer, in_TexCoord, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_TexCoordLocation, 2, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_TexCoordLocation);
GL.BindVertexArray(0);
in_Position.Dispose();
in_TexCoord.Dispose();
}
static DemoLegacyGLTexture3D()
{
image = new UnmanagedArray<Texture3DElement>(iDepth * iHeight * iWidth);
int s, t, r;
for (s = 0; s < 16; s++)
for (t = 0; t < 16; t++)
for (r = 0; r < 16; r++)
{
image[r * 16 * 16 + t * 16 + s] =
new Texture3DElement() { s = (byte)(s * 17), t = (byte)(t * 17), r = (byte)(r * 17), };
}
}
/// <summary>
/// Gets stage vertex id by color coded picking machanism.
/// Note: left bottom is(0, 0). This is different from Winform's left top being (0, 0).
/// </summary>
/// <param name="x">target pixel position(Left Down is (0, 0)).</param>
/// <param name="y">target pixel position(Left Down is (0, 0)).</param>
/// <returns></returns>
internal static unsafe uint ReadStageVertexId(int x, int y)
{
uint stageVertexId = uint.MaxValue;
using (var codedColor = new UnmanagedArray<Pixel>(1))
{
// get coded color.
OpenGL.ReadPixels(x, y, 1, 1, OpenGL.GL_RGBA, OpenGL.GL_UNSIGNED_BYTE, codedColor.Header);
var array = (Pixel*)codedColor.Header.ToPointer();
Pixel pixel = array[0];
// This is when (x, y) is not on background and some primitive is picked.
if (!pixel.IsWhite())
{
stageVertexId = pixel.ToStageVertexId();
}
}
return stageVertexId;
}
protected override void DoInitialize()
{
base_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(base_prog, ShaderType.VertexShader, quad_shader_vs);
ShaderHelper.vglAttachShaderSource(base_prog, ShaderType.FragmentShader, quad_shader_fs);
GL.GenBuffers(1, quad_vbo);
GL.BindBuffer(BufferTarget.ArrayBuffer, quad_vbo[0]);
var quad_data = new UnmanagedArray<vec2>(8);
quad_data[0] = new vec2(1.0f, -1.0f);
quad_data[1] = new vec2(-1.0f, -1.0f);
quad_data[2] = new vec2(-1.0f, 1.0f);
quad_data[3] = new vec2(1.0f, 1.0f);
quad_data[4] = new vec2(0.0f, 0.0f);
quad_data[5] = new vec2(1.0f, 0.0f);
quad_data[6] = new vec2(1.0f, 1.0f);
quad_data[7] = new vec2(0.0f, 1.0f);
GL.BufferData(BufferTarget.ArrayBuffer, quad_data, BufferUsage.StaticDraw);
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
GL.VertexAttribPointer(0, 2, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.VertexAttribPointer(1, 2, GL.GL_FLOAT, false, 0, new IntPtr(8 * sizeof(float)));
GL.EnableVertexAttribArray(0);
GL.EnableVertexAttribArray(1);
GL.LinkProgram(base_prog);
StringBuilder buf = new StringBuilder(1024);
GL.GetProgramInfoLog(base_prog, 1024, IntPtr.Zero, buf);
vglImageData image = new vglImageData();
tex = vgl.vglLoadTexture(@"media\test.dds", 0, ref image);
GL.TexParameteri(image.target, GL.GL_TEXTURE_MIN_FILTER, (int)GL.GL_LINEAR_MIPMAP_LINEAR);
vgl.vglUnloadImage(ref image);
}
internal static void TypicalScene()
{
// 数组较小时可按此方法使用UnmanagedArray，数组较大时请参考UnmanagedArrayHelper。
const int count = 100;
// 测试float类型
{
var floatArray = new UnmanagedArray <float>(count);
for (int i = 0; i < count; i++)
{
floatArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = floatArray[i];
if (item != i)
{
throw new Exception();
}
}
}
// 测试decimal类型
{
var decimalArray = new UnmanagedArray <decimal>(count);
for (int i = 0; i < count; i++)
{
decimalArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = decimalArray[i];
if (item != i)
{
throw new Exception();
}
}
}
// 测试int类型
{
var intArray = new UnmanagedArray <int>(count);
for (int i = 0; i < count; i++)
{
intArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = intArray[i];
if (item != i)
{
throw new Exception();
}
}
}
// 测试bool类型
{
var boolArray = new UnmanagedArray <bool>(count);
for (int i = 0; i < count; i++)
{
boolArray[i] = i % 2 == 0;
}
for (int i = 0; i < count; i++)
{
var item = boolArray[i];
if (item != (i % 2 == 0))
{
throw new Exception();
}
}
}
// 测试vec3类型
{
var vec3Array = new UnmanagedArray <vec3>(count);
for (int i = 0; i < count; i++)
{
vec3Array[i] = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{
throw new Exception();
}
}
// 释放此数组占用的内存，这之后就不能再使用vec3Array了。
vec3Array.Dispose();
}
// 速度较慢，不再使用。
//// 测试foreach
//foreach (var item in vec3Array.Elements())
//{
// Console.WriteLine(item);
//}
// 立即释放所有非托管数组占用的内存，任何之前创建的UnmanagedBase数组都不再可用了。
UnmanagedArray <int> .FreeAll();
}
private void InitVAO()
{
this.axisPrimitiveMode = DrawMode.LineLoop;
this.axisVertexCount = 4;
this.vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create a vertex buffer for the vertex data.
{
UnmanagedArray<vec3> positionArray = new UnmanagedArray<vec3>(4);
positionArray[0] = new vec3(-0.5f, -0.5f, 0);
positionArray[1] = new vec3(0.5f, -0.5f, 0);
positionArray[2] = new vec3(0.5f, 0.5f, 0);
positionArray[3] = new vec3(-0.5f, 0.5f, 0);
uint positionLocation = shaderProgram.GetAttributeLocation(strin_Position);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(positionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(positionLocation);
positionArray.Dispose();
}
// Now do the same for the colour data.
{
UnmanagedArray<vec3> colorArray = new UnmanagedArray<vec3>(4);
vec3 color = this.rectColor;
for (int i = 0; i < colorArray.Length; i++)
{
colorArray[i] = color;
}
uint colorLocation = shaderProgram.GetAttributeLocation(strin_Color);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(colorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(colorLocation);
colorArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
protected override void DoInitialize()
{
// Initialize our compute program
compute_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(compute_prog, ShaderType.ComputerShader, compute_shader_source);
GL.LinkProgram(compute_prog);
dt_location = GL.GetUniformLocation(compute_prog, "dt");
GL.GenVertexArrays(1, render_vao);
GL.BindVertexArray(render_vao[0]);
GL.GenBuffers(2, buffers);
{
GL.BindBuffer(BufferTarget.ArrayBuffer, buffers[0]);//position buffer
UnmanagedArray <vec4> tmp = new UnmanagedArray <vec4>(PARTICLE_COUNT);
GL.BufferData(BufferTarget.ArrayBuffer, tmp, BufferUsage.DynamicCopy);
tmp.Dispose();
IntPtr positions = GL.MapBufferRange(GL.GL_ARRAY_BUFFER,
0, PARTICLE_COUNT * Marshal.SizeOf(typeof(vec4)), GL.GL_MAP_WRITE_BIT | GL.GL_MAP_INVALIDATE_BUFFER_BIT);
unsafe
{
vec4 *array = (vec4 *)positions.ToPointer();
for (int i = 0; i < PARTICLE_COUNT; i++)
{
array[i] = new vec4(Vec3Helper.GetRandomVec3(), (float)random.NextDouble());
}
}
GL.UnmapBuffer(BufferTarget.ArrayBuffer);
GL.VertexAttribPointer(0, 4, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(0);
}
{
GL.BindBuffer(BufferTarget.ArrayBuffer, buffers[1]);// velocity buffer
UnmanagedArray <vec4> tmp = new UnmanagedArray <vec4>(PARTICLE_COUNT);
GL.BufferData(BufferTarget.ArrayBuffer, tmp, BufferUsage.DynamicCopy);
tmp.Dispose();
IntPtr velocities = GL.MapBufferRange(GL.GL_ARRAY_BUFFER,
0, PARTICLE_COUNT * Marshal.SizeOf(typeof(vec4)), GL.GL_MAP_WRITE_BIT | GL.GL_MAP_INVALIDATE_BUFFER_BIT);
unsafe
{
vec4 *array = (vec4 *)velocities.ToPointer();
for (int i = 0; i < PARTICLE_COUNT; i++)
{
array[i] = new vec4(Vec3Helper.GetRandomVec3(), (float)random.NextDouble());
}
}
GL.UnmapBuffer(BufferTarget.ArrayBuffer);
}
{
GL.GenTextures(2, tbos);
for (int i = 0; i < 2; i++)
{
GL.BindTexture(GL.GL_TEXTURE_BUFFER, tbos[i]);
GL.TexBuffer(GL.GL_TEXTURE_BUFFER, GL.GL_RGBA32F, buffers[i]);
}
}
{
GL.GenBuffers(1, attractor_buffer);
GL.BindBuffer(BufferTarget.UniformBuffer, attractor_buffer[0]);
UnmanagedArray <vec4> tmp = new UnmanagedArray <vec4>(32);
GL.BufferData(BufferTarget.UniformBuffer, tmp, BufferUsage.StaticDraw);
tmp.Dispose();
for (int i = 0; i < MAX_ATTRACTORS; i++)
{
attractor_masses[i] = 0.5f + (float)random.NextDouble() * 0.5f;
}
GL.BindBufferBase(TransformFeedbackBufferTarget.UniformBuffer, 0, attractor_buffer[0]);
}
{
render_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(render_prog, ShaderType.VertexShader, render_vs);
ShaderHelper.vglAttachShaderSource(render_prog, ShaderType.FragmentShader, render_fs);
GL.LinkProgram(render_prog);
}
}
public void UnmanagedArray_GetByRef()
{
var array = new UnmanagedArray <uint>(256);
ref uint u = ref array.GetRef(0);
private void InitVAO(string value)
{
if (value == null)
{
value = string.Empty;
}
this.mode = DrawMode.Quads;
this.vertexCount = 4 * value.Length;
// Create a vertex buffer for the vertex data.
UnmanagedArray <vec3> in_Position = new UnmanagedArray <vec3>(this.vertexCount);
UnmanagedArray <vec2> in_TexCoord = new UnmanagedArray <vec2>(this.vertexCount);
Bitmap bigBitmap = this.ttfTexture.BigBitmap;
// step 1: set width for each glyph
vec3[] tmpPositions = new vec3[this.vertexCount];
float totalLength = 0;
for (int i = 0; i < value.Length; i++)
{
char c = value[i];
CharacterInfo cInfo;
if (this.ttfTexture.CharInfoDict.TryGetValue(c, out cInfo))
{
float glyphWidth = (float)cInfo.width / (float)this.ttfTexture.FontHeight;
if (i == 0)
{
tmpPositions[i * 4 + 0] = new vec3(0, 0, 0);
tmpPositions[i * 4 + 1] = new vec3(glyphWidth, 0, 0);
tmpPositions[i * 4 + 2] = new vec3(glyphWidth, 1, 0);
tmpPositions[i * 4 + 3] = new vec3(0, 1, 0);
}
else
{
tmpPositions[i * 4 + 0] = tmpPositions[i * 4 + 0 - 4 + 1];
tmpPositions[i * 4 + 1] = tmpPositions[i * 4 + 0] + new vec3(glyphWidth, 0, 0);
tmpPositions[i * 4 + 3] = tmpPositions[i * 4 + 3 - 4 - 1];
tmpPositions[i * 4 + 2] = tmpPositions[i * 4 + 3] + new vec3(glyphWidth, 0, 0);
}
totalLength += glyphWidth;
}
//else
//{ throw new Exception(string.Format("Not support for display the char [{0}]", c)); }
}
for (int i = 0; i < value.Length; i++)
{
char c = value[i];
CharacterInfo cInfo;
float x1 = 0;
float x2 = 1;
float y1 = 0;
float y2 = 1;
if (this.ttfTexture.CharInfoDict.TryGetValue(c, out cInfo))
{
x1 = (float)cInfo.xoffset / (float)bigBitmap.Width;
x2 = (float)(cInfo.xoffset + cInfo.width) / (float)bigBitmap.Width;
y1 = (float)cInfo.yoffset / (float)bigBitmap.Height;
y2 = (float)(cInfo.yoffset + this.ttfTexture.FontHeight) / (float)bigBitmap.Height;
}
//else
//{ throw new Exception(string.Format("Not support for display the char [{0}]", c)); }
in_Position[i * 4 + 0] = tmpPositions[i * 4 + 0] - new vec3(totalLength / 2, 0, 0);
in_Position[i * 4 + 1] = tmpPositions[i * 4 + 1] - new vec3(totalLength / 2, 0, 0);
in_Position[i * 4 + 2] = tmpPositions[i * 4 + 2] - new vec3(totalLength / 2, 0, 0);
in_Position[i * 4 + 3] = tmpPositions[i * 4 + 3] - new vec3(totalLength / 2, 0, 0);
//in_TexCoord[i * 4 + 0] = new vec2(x1, y1);
//in_TexCoord[i * 4 + 1] = new vec2(x2, y1);
//in_TexCoord[i * 4 + 2] = new vec2(x2, y2);
//in_TexCoord[i * 4 + 3] = new vec2(x1, y2);
in_TexCoord[i * 4 + 0] = new vec2(x1, y2);
in_TexCoord[i * 4 + 1] = new vec2(x2, y2);
in_TexCoord[i * 4 + 2] = new vec2(x2, y1);
in_TexCoord[i * 4 + 3] = new vec2(x1, y1);
}
if (vao[0] != 0)
{
GL.DeleteBuffers(1, vao);
}
if (vbo[0] != 0)
{
GL.DeleteBuffers(vbo.Length, vbo);
}
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
GL.GenBuffers(2, vbo);
uint in_PositionLocation = shaderProgram.GetAttributeLocation(strin_Position);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo[0]);
GL.BufferData(BufferTarget.ArrayBuffer, in_Position, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_PositionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_PositionLocation);
uint in_TexCoordLocation = shaderProgram.GetAttributeLocation(strin_TexCoord);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo[1]);
GL.BufferData(BufferTarget.ArrayBuffer, in_TexCoord, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_TexCoordLocation, 2, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_TexCoordLocation);
GL.BindVertexArray(0);
in_Position.Dispose();
in_TexCoord.Dispose();
}
private void InitVAO()
{
// reserve a vertex array object(VAO) 预约一个VAO
this.vertexArrayObject = new uint[1];
GL.GenVertexArrays(1, this.vertexArrayObject);
// prepare vertex buffer object(VBO) for vertexes' positions 为顶点位置准备VBO
uint[] positionBufferObject = new uint[1];
{
// specify position array
var positionArray = new UnmanagedArray <vec3>(vertexCount);
positionArray[0] = new vec3(0.0f, 1.0f, 0.0f);
positionArray[1] = new vec3(-1.0f, -1.0f, 1.0f);
positionArray[2] = new vec3(1.0f, -1.0f, 1.0f);
positionArray[3] = new vec3(0.0f, 1.0f, 0.0f);
positionArray[4] = new vec3(1.0f, -1.0f, 1.0f);
positionArray[5] = new vec3(1.0f, -1.0f, -1.0f);
positionArray[6] = new vec3(0.0f, 1.0f, 0.0f);
positionArray[7] = new vec3(1.0f, -1.0f, -1.0f);
positionArray[8] = new vec3(-1.0f, -1.0f, -1.0f);
positionArray[9] = new vec3(0.0f, 1.0f, 0.0f);
positionArray[10] = new vec3(-1.0f, -1.0f, -1.0f);
positionArray[11] = new vec3(-1.0f, -1.0f, 1.0f);
// put positions into VBO
GL.GenBuffers(1, positionBufferObject);
GL.BindBuffer(BufferTarget.ArrayBuffer, positionBufferObject[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
positionArray.Dispose();
}
// prepare vertex buffer object(VBO) for vertexes' colors
uint[] colorBufferObject = new uint[1];
{
// specify color array
UnmanagedArray <vec3> colorArray = new UnmanagedArray <vec3>(vertexCount);
colorArray[0] = new vec3(1.0f, 0.0f, 0.0f);
colorArray[1] = new vec3(0.0f, 1.0f, 0.0f);
colorArray[2] = new vec3(0.0f, 0.0f, 1.0f);
colorArray[3] = new vec3(1.0f, 0.0f, 0.0f);
colorArray[4] = new vec3(0.0f, 0.0f, 1.0f);
colorArray[5] = new vec3(0.0f, 1.0f, 0.0f);
colorArray[6] = new vec3(1.0f, 0.0f, 0.0f);
colorArray[7] = new vec3(0.0f, 1.0f, 0.0f);
colorArray[8] = new vec3(0.0f, 0.0f, 1.0f);
colorArray[9] = new vec3(1.0f, 0.0f, 0.0f);
colorArray[10] = new vec3(0.0f, 0.0f, 1.0f);
colorArray[11] = new vec3(0.0f, 1.0f, 0.0f);
// put colors into VBO
GL.GenBuffers(1, colorBufferObject);
GL.BindBuffer(BufferTarget.ArrayBuffer, colorBufferObject[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
colorArray.Dispose();
}
uint positionLocation = shaderProgram.GetAttributeLocation("in_Position");
uint colorLocation = shaderProgram.GetAttributeLocation("in_Color");
{
// bind the vertex array object(VAO), we are going to specify data for it.
GL.BindVertexArray(vertexArrayObject[0]);
// specify vertexes' positions
GL.BindBuffer(BufferTarget.ArrayBuffer, positionBufferObject[0]);
GL.VertexAttribPointer(positionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(positionLocation);
// specify vertexes' colors
GL.BindBuffer(BufferTarget.ArrayBuffer, colorBufferObject[0]);
GL.VertexAttribPointer(colorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(colorLocation);
// Unbind the vertex array object(VAO), we've finished specifying data for it.
GL.BindVertexArray(0);
}
}
static public void UpdateConditions()
{
var assembly = new UnmanagedArray <System.Byte>();
assembly.Add(new System.Byte[3] {
0x0F, 0x57, 0xC0
}); // xorps xmm0, xmm0
assembly.Add(new System.Byte[3] {
0x0F, 0x2F, 0xC8
}); // comiss xmm1, xmm0
assembly.Add(new System.Byte[2] {
0x77, 5 + 8
}); // ja D (elapsedTime <= 0.0F)
assembly.Add(new System.Byte[8] {
0xF3, 0x0F, 0x11, 0xB7, 0x8C, 0x00, 0x00, 0x00
}); // movss [rdi+8C], xmm6 (padding8C = frameTime)
assembly.Add(new System.Byte[5] {
0xE9, 0x6C - ((3 + 3 + 2) + (8 + 5)) + 0x87, 0x00, 0x00, 0x00
}); // jmp DE (Skip)
assembly.Add(new System.Byte[8] {
0xF3, 0x0F, 0x10, 0x97, 0x8C, 0x00, 0x00, 0x00
}); // movss xmm2, [rdi+8C]
assembly.Add(new System.Byte[3] {
0x0F, 0x2F, 0xD0
}); // comiss xmm2, xmm0
assembly.Add(new System.Byte[2] {
0x76, (5 + 4 + 4 + 3 + 2) + (4 + 8 + 5)
}); // jna 23 (padding8C > 0.0F)
assembly.Add(new System.Byte[5] {
0xB9, 0x01, 0x00, 0x00, 0x00
}); // mov ecx, 1
assembly.Add(new System.Byte[4] {
0xF3, 0x0F, 0x2A, 0xC1
}); // cvtsi2ss xmm0, ecx
assembly.Add(new System.Byte[4] {
0xF3, 0x0F, 0x5E, 0xC3
}); // divss xmm0,xmm3
assembly.Add(new System.Byte[3] {
0x0F, 0x2F, 0xC2
}); // comiss xmm0, xmm2
assembly.Add(new System.Byte[2] {
0x76, (4 + 8 + 5)
}); // jna 11 (activeEffectConditionUpdateInterval > padding8C)
assembly.Add(new System.Byte[4] {
0xF3, 0x0F, 0x58, 0xD6
}); // addss xmm2, xmm6
assembly.Add(new System.Byte[8] {
0xF3, 0x0F, 0x11, 0x97, 0x8C, 0x00, 0x00, 0x00
}); // movss [rdi+8C], xmm2 (padding8C += frameTime)
assembly.Add(new System.Byte[5] {
0xE9, 0x6C - ((3 + 3 + 2) + (8 + 5) + (8 + 3 + 2) + (5 + 4 + 4 + 3 + 2) + (4 + 8 + 5)) + 0x87, 0x00, 0x00, 0x00
}); // jmp AE (Skip)
assembly.Add(new System.Byte[8] {
0xF3, 0x0F, 0x11, 0xB7, 0x8C, 0x00, 0x00, 0x00
}); // movss [rdi+8C], xmm6 (padding8C = frameTime)
assembly.Add(new System.Byte[2] {
0xEB, 0x6C - ((3 + 3 + 2) + (8 + 5) + (8 + 3 + 2) + (5 + 4 + 4 + 3 + 2) + (4 + 8 + 5) + (8 + 2))
}); // jmp 1D (Update)
Memory.SafeFill <System.Byte>(ScrambledBugs.Offsets.Fixes.MagicEffectConditions.UpdateConditions, 0x6C, Assembly.Nop);
Memory.SafeWrite <System.Byte>(ScrambledBugs.Offsets.Fixes.MagicEffectConditions.UpdateConditions, assembly);
// ecx
// eflags
// xmm0
// xmm2
// activeEffect != null
/*
* ActiveEffect* activeEffect; // rdi
* System.Single elapsedTime; // xmm1
* System.Single activeEffectConditionUpdateFrequency; // xmm3
* System.Single frameTime; // xmm6
*
* if (elapsedTime <= 0.0F)
* {
* activeEffect->Padding8C(frameTime);
*
* goto Skip;
* }
*
* System.Single padding8C = activeEffect->Padding8C();
*
* if (padding8C > 0.0F)
* {
* System.Single activeEffectConditionUpdateInterval = 1.0F / activeEffectConditionUpdateFrequency;
*
* if (padding8C < activeEffectConditionUpdateInterval)
* {
* activeEffect->Padding8C(padding8C + frameTime);
*
* goto Skip;
* }
* }
*
* activeEffect->Padding8C(frameTime);
*
* goto Update;
*/
}
public GuardedByteArray(UnmanagedArray <byte> clearBytes)
{
_target = new SecureString();
AppendBytes(clearBytes);
}
public void Access(UnmanagedArray <char> clearBytes)
{
_accessor(clearBytes);
}
private void InitVAO()
{
this.axisPrimitiveMode = DrawMode.Lines;
this.axisVertexCount = 8 * 3;
this.vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create a vertex buffer for the vertex data.
{
UnmanagedArray<vec3> positionArray = new UnmanagedArray<vec3>(8 * 3);
const float halfLength = 0.5f;
// x axis
positionArray[0] = new vec3(-halfLength, -halfLength, -halfLength);
positionArray[1] = new vec3(halfLength, -halfLength, -halfLength);
positionArray[2] = new vec3(-halfLength, -halfLength, halfLength);
positionArray[3] = new vec3(halfLength, -halfLength, halfLength);
positionArray[4] = new vec3(-halfLength, halfLength, halfLength);
positionArray[5] = new vec3(halfLength, halfLength, halfLength);
positionArray[6] = new vec3(-halfLength, halfLength, -halfLength);
positionArray[7] = new vec3(halfLength, halfLength, -halfLength);
// y axis
positionArray[8 + 0] = new vec3(-halfLength, -halfLength, -halfLength);
positionArray[8 + 1] = new vec3(-halfLength, halfLength, -halfLength);
positionArray[8 + 2] = new vec3(-halfLength, -halfLength, halfLength);
positionArray[8 + 3] = new vec3(-halfLength, halfLength, halfLength);
positionArray[8 + 4] = new vec3(halfLength, -halfLength, halfLength);
positionArray[8 + 5] = new vec3(halfLength, halfLength, halfLength);
positionArray[8 + 6] = new vec3(halfLength, -halfLength, -halfLength);
positionArray[8 + 7] = new vec3(halfLength, halfLength, -halfLength);
// z axis
positionArray[16 + 0] = new vec3(-halfLength, -halfLength, -halfLength);
positionArray[16 + 1] = new vec3(-halfLength, -halfLength, halfLength);
positionArray[16 + 2] = new vec3(-halfLength, halfLength, -halfLength);
positionArray[16 + 3] = new vec3(-halfLength, halfLength, halfLength);
positionArray[16 + 4] = new vec3(halfLength, halfLength, -halfLength);
positionArray[16 + 5] = new vec3(halfLength, halfLength, halfLength);
positionArray[16 + 6] = new vec3(halfLength, -halfLength, -halfLength);
positionArray[16 + 7] = new vec3(halfLength, -halfLength, halfLength);
uint positionLocation = shaderProgram.GetAttributeLocation(strin_Position);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(positionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(positionLocation);
positionArray.Dispose();
}
// Now do the same for the colour data.
{
UnmanagedArray<vec3> colorArray = new UnmanagedArray<vec3>(8 * 3);
vec3[] colors = new vec3[] { new vec3(1, 0, 0), new vec3(0, 1, 0), new vec3(0, 0, 1), };
for (int i = 0; i < colorArray.Length; i++)
{
colorArray[i] = colors[i / 8];
}
uint colorLocation = shaderProgram.GetAttributeLocation(strin_Color);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(colorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(colorLocation);
colorArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
protected override void DoInitialize()
{
render_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(render_prog, ShaderType.VertexShader, render_vs);
ShaderHelper.vglAttachShaderSource(render_prog, ShaderType.FragmentShader, render_fs);
GL.LinkProgram(render_prog);
GL.UseProgram(render_prog);
view_matrix_loc = GL.GetUniformLocation(render_prog, "view_matrix");
projection_matrix_loc = GL.GetUniformLocation(render_prog, "projection_matrix");
vboObject.LoadFromVBM(@"media\armadillo_low.vbm", 0, 1, 2);
// Bind its vertex array object so that we can append the instanced attributes
vboObject.BindVertexArray();
// Get the locations of the vertex attributes in 'prog', which is the
// (linked) program object that we're going to be rendering with. Note
// that this isn't really necessary because we specified locations for
// all the attributes in our vertex shader. This code could be made
// more concise by assuming the vertex attributes are where we asked
// the compiler to put them.
int position_loc = GL.GetAttribLocation(render_prog, "position");
int normal_loc = GL.GetAttribLocation(render_prog, "normal");
int color_loc = GL.GetAttribLocation(render_prog, "color");
int matrix_loc = GL.GetAttribLocation(render_prog, "model_matrix");
// Generate the colors of the objects
var colors = new UnmanagedArray<vec4>(INSTANCE_COUNT);
for (int n = 0; n < INSTANCE_COUNT; n++)
{
float a = (float)(n) / 4.0f;
float b = (float)(n) / 5.0f;
float c = (float)(n) / 6.0f;
colors[n] = new vec4(
(float)(0.5f + 0.25f * (Math.Sin(a + 1.0f) + 1.0f)),
(float)(0.5f + 0.25f * (Math.Sin(b + 2.0f) + 1.0f)),
(float)(0.5f + 0.25f * (Math.Sin(c + 3.0f) + 1.0f)),
(float)(1.0f)
);
}
GL.GenBuffers(1, color_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, color_buffer[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colors, BufferUsage.DynamicDraw);
colors.Dispose();
// Now we set up the color array. We want each instance of our geometry
// to assume a different color, so we'll just pack colors into a buffer
// object and make an instanced vertex attribute out of it.
GL.BindBuffer(BufferTarget.ArrayBuffer, color_buffer[0]);
GL.VertexAttribPointer((uint)color_loc, 4, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray((uint)color_loc);
// This is the important bit... set the divisor for the color array to
// 1 to get OpenGL to give us a new value of 'color' per-instance
// rather than per-vertex.
GL.VertexAttribDivisor((uint)color_loc, 1);
// Likewise, we can do the same with the model matrix. Note that a
// matrix input to the vertex shader consumes N consecutive input
// locations, where N is the number of columns in the matrix. So...
// we have four vertex attributes to set up.
UnmanagedArray<mat4> tmp = new UnmanagedArray<mat4>(INSTANCE_COUNT);
GL.GenBuffers(1, model_matrix_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, model_matrix_buffer[0]);
GL.BufferData(BufferTarget.ArrayBuffer, tmp, BufferUsage.DynamicDraw);
tmp.Dispose();
// Loop over each column of the matrix...
for (int i = 0; i < 4; i++)
{
// Set up the vertex attribute
GL.VertexAttribPointer((uint)(matrix_loc + i), // Location
4, GL.GL_FLOAT, false, // vec4
Marshal.SizeOf(typeof(mat4)), // Stride
new IntPtr(Marshal.SizeOf(typeof(vec4)) * i)); // Start offset
// Enable it
GL.EnableVertexAttribArray((uint)(matrix_loc + i));
// Make it instanced
GL.VertexAttribDivisor((uint)(matrix_loc + i), 1);
}
// Done (unbind the object's VAO)
GL.BindVertexArray(0);
}
/// <summary>
/// Read pixels in specified rect and get the VertexIds they represent.
/// </summary>
/// <param name="target"></param>
/// <returns></returns>
private static unsafe List<Tuple<Point, uint>> ReadPixels(Rectangle target)
{
var result = new List<Tuple<Point, uint>>();
// get coded color.
using (var codedColor = new UnmanagedArray<Pixel>(target.Width * target.Height))
{
OpenGL.ReadPixels(target.X, target.Y, target.Width, target.Height,
OpenGL.GL_RGBA, OpenGL.GL_UNSIGNED_BYTE, codedColor.Header);
var array = (Pixel*)codedColor.Header.ToPointer();
int index = 0;
var vertexIdList = new List<uint>();
for (int yOffset = target.Height - 1; yOffset >= 0; yOffset--)
{
for (int xOffset = 0; xOffset < target.Width; xOffset++)
{
Pixel pixel = array[index++];
// This is when (x, y) is not on background and some primitive is picked.
if (!pixel.IsWhite())
{
uint stageVertexId = pixel.ToStageVertexId();
if (!vertexIdList.Contains(stageVertexId))
{
result.Add(new Tuple<Point, uint>(
new Point(target.X + xOffset, target.Y + yOffset), stageVertexId));
vertexIdList.Add(stageVertexId);
}
}
}
}
}
return result;
}
protected override void DoInitialize()
{
// Initialize our compute program
compute_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(compute_prog, ShaderType.ComputerShader, compute_shader_source);
GL.LinkProgram(compute_prog);
dt_location = GL.GetUniformLocation(compute_prog, "dt");
GL.GenVertexArrays(1, render_vao);
GL.BindVertexArray(render_vao[0]);
GL.GenBuffers(2, buffers);
{
GL.BindBuffer(BufferTarget.ArrayBuffer, buffers[0]);//position buffer
UnmanagedArray<vec4> tmp = new UnmanagedArray<vec4>(PARTICLE_COUNT);
GL.BufferData(BufferTarget.ArrayBuffer, tmp, BufferUsage.DynamicCopy);
tmp.Dispose();
IntPtr positions = GL.MapBufferRange(GL.GL_ARRAY_BUFFER,
0, PARTICLE_COUNT * Marshal.SizeOf(typeof(vec4)), GL.GL_MAP_WRITE_BIT | GL.GL_MAP_INVALIDATE_BUFFER_BIT);
unsafe
{
vec4* array = (vec4*)positions.ToPointer();
for (int i = 0; i < PARTICLE_COUNT; i++)
{
array[i] = new vec4(Vec3Helper.GetRandomVec3(), (float)random.NextDouble());
}
}
GL.UnmapBuffer(BufferTarget.ArrayBuffer);
GL.VertexAttribPointer(0, 4, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(0);
}
{
GL.BindBuffer(BufferTarget.ArrayBuffer, buffers[1]);// velocity buffer
UnmanagedArray<vec4> tmp = new UnmanagedArray<vec4>(PARTICLE_COUNT);
GL.BufferData(BufferTarget.ArrayBuffer, tmp, BufferUsage.DynamicCopy);
tmp.Dispose();
IntPtr velocities = GL.MapBufferRange(GL.GL_ARRAY_BUFFER,
0, PARTICLE_COUNT * Marshal.SizeOf(typeof(vec4)), GL.GL_MAP_WRITE_BIT | GL.GL_MAP_INVALIDATE_BUFFER_BIT);
unsafe
{
vec4* array = (vec4*)velocities.ToPointer();
for (int i = 0; i < PARTICLE_COUNT; i++)
{
array[i] = new vec4(Vec3Helper.GetRandomVec3(), (float)random.NextDouble());
}
}
GL.UnmapBuffer(BufferTarget.ArrayBuffer);
}
{
GL.GenTextures(2, tbos);
for (int i = 0; i < 2; i++)
{
GL.BindTexture(GL.GL_TEXTURE_BUFFER, tbos[i]);
GL.TexBuffer(GL.GL_TEXTURE_BUFFER, GL.GL_RGBA32F, buffers[i]);
}
}
{
GL.GenBuffers(1, attractor_buffer);
GL.BindBuffer(BufferTarget.UniformBuffer, attractor_buffer[0]);
UnmanagedArray<vec4> tmp = new UnmanagedArray<vec4>(32);
GL.BufferData(BufferTarget.UniformBuffer, tmp, BufferUsage.StaticDraw);
tmp.Dispose();
for (int i = 0; i < MAX_ATTRACTORS; i++)
{
attractor_masses[i] = 0.5f + (float)random.NextDouble() * 0.5f;
}
GL.BindBufferBase(TransformFeedbackBufferTarget.UniformBuffer, 0, attractor_buffer[0]);
}
{
render_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(render_prog, ShaderType.VertexShader, render_vs);
ShaderHelper.vglAttachShaderSource(render_prog, ShaderType.FragmentShader, render_fs);
GL.LinkProgram(render_prog);
}
}
//private void glCanvas1_MouseClick(object sender, MouseEventArgs e)
//{
// if (e.Button == System.Windows.Forms.MouseButtons.Right)
// {
// IPickedGeometry pickedGeometry = this.Pick(e.X, e.Y);
// if (pickedGeometry != null)
// {
// this.txtPickedInfo.Text = string.Format("{0:yyyy-MM-dd HH:mm:ss.ff} {1}",
// DateTime.Now, pickedGeometry);
// }
// else
// {
// this.txtPickedInfo.Text = string.Format("{0:yyyy-MM-dd HH:mm:ss.ff} {1}",
// DateTime.Now, "nothing picked");
// }
// }
//}
private IPickedGeometry Pick(int x, int y)
{
//this.glCanvas1.MakeCurrent();
// render the scene for color-coded picking.
GL.ClearColor(1.0f, 1.0f, 1.0f, 1.0f);
GL.Clear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_BUFFER_BIT);
SharedStageInfo info = new SharedStageInfo();
info.Reset();
var arg = new RenderEventArgs(RenderModes.HitTest, this.camera);
IColorCodedPicking pickable = this.element;
info.RenderForPicking(pickable, arg);
GL.Flush();
// get coded color.
//byte[] codedColor = new byte[4];
UnmanagedArray<byte> codedColor = new UnmanagedArray<byte>(4);
GL.ReadPixels(x, this.glCanvas1.Height - y - 1, 1, 1, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, codedColor.Header);
if (codedColor[0] == byte.MaxValue && codedColor[1] == byte.MaxValue
&& codedColor[2] == byte.MaxValue && codedColor[3] == byte.MaxValue)
{
// This is when (x, y) is on background and no primitive is picked.
return null;
}
/* // This is how is vertexID coded into color in vertex shader.
* int objectID = gl_VertexID;
codedColor = vec4(
float(objectID & 0xFF),
float((objectID >> 8) & 0xFF),
float((objectID >> 16) & 0xFF),
float((objectID >> 24) & 0xFF));
*/
// get vertexID from coded color.
// the vertexID is the last vertex that constructs the primitive.
// see http://www.cnblogs.com/bitzhuwei/p/modern-opengl-picking-primitive-in-VBO-2.html
uint shiftedR = (uint)codedColor[0];
uint shiftedG = (uint)codedColor[1] << 8;
uint shiftedB = (uint)codedColor[2] << 16;
uint shiftedA = (uint)codedColor[3] << 24;
uint stageVertexID = shiftedR + shiftedG + shiftedB + shiftedA;
// get picked primitive.
IPickedGeometry pickedGeometry = null;
pickedGeometry = ((IColorCodedPicking)this.element).Pick(stageVertexID);
return pickedGeometry;
}
public HeightfieldColliderShape(int heightStickWidth, int heightStickLength, UnmanagedArray <byte> dynamicFieldData, float heightScale, float minHeight, float maxHeight, bool flipQuadEdges)
: base(heightStickWidth, heightStickLength, dynamicFieldData, heightScale, minHeight, maxHeight, flipQuadEdges)
{
}
public static bool VerifyBase64SHA1Hash(UnmanagedArray <char> input, string hash)
{
string inputHash = ComputeBase64SHA1Hash(input);
return(inputHash.Equals(hash));
}
protected override void DoInitialize()
{
// Now create a simple program to visualize the result
basicShaderProgram = new ShaderProgram();
basicShaderProgram.Create(basicVertexShader, basicFragmentShader, null);
basicShaderProgram.AssertValid();
base_model_matrix_pos = GL.GetUniformLocation(basicShaderProgram.ShaderProgramObject, "model_matrix");
base_projection_matrix_pos = GL.GetUniformLocation(basicShaderProgram.ShaderProgramObject, "projection_matrix");
fur_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(fur_prog, ShaderType.VertexShader, furVertexShader);
ShaderHelper.vglAttachShaderSource(fur_prog, ShaderType.GeometryShader, furGeometryShader);
ShaderHelper.vglAttachShaderSource(fur_prog, ShaderType.FragmentShader, furFragmentShader);
GL.LinkProgram(fur_prog);
GL.UseProgram(fur_prog);
fur_model_matrix_pos = GL.GetUniformLocation(fur_prog, "model_matrix");
fur_projection_matrix_pos = GL.GetUniformLocation(fur_prog, "projection_matrix");
GL.GenTextures(1, fur_texture);
UnmanagedArray<byte> tex = new UnmanagedArray<byte>(1024 * 1024 * 4);
Random random = new Random();
for (int n = 0; n < 256; n++)
{
for (int m = 0; m < 1270; m++)
{
int x = random.Next() & 0x3FF;
int y = random.Next() & 0x3FF;
tex[(y * 1024 + x) * 4 + 0] = (byte)((random.Next() & 0x3F) + 0xC0);
tex[(y * 1024 + x) * 4 + 1] = (byte)((random.Next() & 0x3F) + 0xC0);
tex[(y * 1024 + x) * 4 + 2] = (byte)((random.Next() & 0x3F) + 0xC0);
tex[(y * 1024 + x) * 4 + 3] = (byte)(n);
//tex[(y * 1024 + x) * 4 + 0] = (byte)(random.Next());
//tex[(y * 1024 + x) * 4 + 1] = (byte)(random.Next());
//tex[(y * 1024 + x) * 4 + 2] = (byte)(random.Next());
//tex[(y * 1024 + x) * 4 + 3] = (byte)(random.Next());
}
}
GL.BindTexture(GL.GL_TEXTURE_2D, fur_texture[0]);
GL.TexImage2D(TexImage2DTargets.Texture2D, 0, TexImage2DFormats.RGBA, 1024, 1024, 0, TexImage2DFormats.RGBA, TexImage2DTypes.UnsignedByte, tex.Header);
GL.TexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, (int)GL.GL_LINEAR);
GL.TexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, (int)GL.GL_LINEAR);
tex.Dispose();
vboObject.LoadFromVBM(@"media\ninja.vbm", 0, 1, 2);
base.BeforeRendering += LightingExample_BeforeRendering;
base.AfterRendering += LightingExample_AfterRendering;
}
//protected void InitializeVAO(out uint[] vao, out DrawMode primitiveMode, out int vertexCount)
protected void InitializeVAO()
{
this.primitiveMode = DrawMode.Triangles;
this.vertexCount = positions.Length;
this.vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create a vertex buffer for the vertex data.
{
//uint[] ids = new uint[1];
this.positionBufferObject = new uint[1];
GL.GenBuffers(1, this.positionBufferObject);
GL.BindBuffer(BufferTarget.ArrayBuffer, this.positionBufferObject[0]);
UnmanagedArray<vec3> positionArray = new UnmanagedArray<vec3>(positions.Length);
for (int i = 0; i < positions.Length; i++)
{
positionArray[i] = positions[i];
}
uint positionLocation = shaderProgram.GetAttributeLocation(strin_Position);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(positionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(positionLocation);
positionArray.Dispose();
}
// Now do the same for the colour data.
{
//uint[] ids = new uint[1];
this.colorBufferObject = new uint[1];
GL.GenBuffers(1, this.colorBufferObject);
GL.BindBuffer(BufferTarget.ArrayBuffer, this.colorBufferObject[0]);
UnmanagedArray<vec3> colorArray = new UnmanagedArray<vec3>(positions.Length);
for (int i = 0; i < colors.Length; i++)
{
colorArray[i] = colors[i];
}
uint colorLocation = shaderProgram.GetAttributeLocation(strin_Color);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(colorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(colorLocation);
colorArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
public static void TypicalScene()
{
const int count = 1000000;
long startTick = 0;
long interval, interval2;
// 测试float类型
{
var floatArray = new UnmanagedArray<float>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
floatArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = floatArray[i];
if (item != i)
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
float* header = (float*)floatArray.FirstElement();
float* last = (float*)floatArray.LastElement();
float* tailAddress = (float*)floatArray.TailAddress();
int value = 0;
for (float* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (float* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试decimal类型
{
var decimalArray = new UnmanagedArray<decimal>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
decimalArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = decimalArray[i];
if (item != i)
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
decimal* header = (decimal*)decimalArray.FirstElement();
decimal* last = (decimal*)decimalArray.LastElement();
decimal* tailAddress = (decimal*)decimalArray.TailAddress();
int value = 0;
for (decimal* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (decimal* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试int类型
{
var intArray = new UnmanagedArray<int>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
intArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = intArray[i];
if (item != i)
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
int* header = (int*)intArray.FirstElement();
int* last = (int*)intArray.LastElement();
int* tailAddress = (int*)intArray.TailAddress();
int value = 0;
for (int* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (int* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试bool类型
{
var boolArray = new UnmanagedArray<bool>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
boolArray[i] = i % 2 == 0;
}
for (int i = 0; i < count; i++)
{
var item = boolArray[i];
if (item != (i % 2 == 0))
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
bool* header = (bool*)boolArray.FirstElement();
bool* last = (bool*)boolArray.LastElement();
bool* tailAddress = (bool*)boolArray.TailAddress();
int value = 0;
for (bool* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = (value % 2 == 0);
value++;
}
int i = 0;
for (bool* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != (i % 2 == 0))
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试vec3类型
{
var vec3Array = new UnmanagedArray<vec3>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
vec3Array[i] = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{ throw new Exception(); }
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
vec3* header = (vec3*)vec3Array.FirstElement();
vec3* last = (vec3*)vec3Array.LastElement();
vec3* tailAddress = (vec3*)vec3Array.TailAddress();
int i = 0;
for (vec3* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
i++;
}
i = 0;
for (vec3* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{ throw new Exception(); }
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试mat4类型
{
var vec3Array = new UnmanagedArray<mat4>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
vec3Array[i] = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
for (int col = 0; col < 4; col++)
{
for (int row = 0; row < 4; row++)
{
if (item[col][row] != old[col][row])
{ throw new Exception(); }
}
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
mat4* header = (mat4*)vec3Array.FirstElement();
mat4* last = (mat4*)vec3Array.LastElement();
mat4* tailAddress = (mat4*)vec3Array.TailAddress();
int i = 0;
for (mat4* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++)
{
*ptr = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
i++;
}
i = 0;
for (mat4* ptr = header; ptr <= last/*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
var old = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
for (int col = 0; col < 4; col++)
{
for (int row = 0; row < 4; row++)
{
if (item[col][row] != old[col][row])
{ throw new Exception(); }
}
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 立即释放所有非托管数组占用的内存，任何之前创建的UnmanagedBase数组都不再可用了。
UnmanagedArray<int>.FreeAll();
}
public bool LoadFromVBM(string filename, int vertexIndex, int normalIndex, int texCoord0Index)
{
//FILE * f = NULL;
FileStream f = new FileStream(filename, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(f);
//f = fopen(filename, "rb");
//if(f == NULL)
//return false;
//fseek(f, 0, SEEK_END);
//size_t filesize = ftell(f);
//fseek(f, 0, SEEK_SET);
long filesize = f.Length;
//f.Seek(0, SeekOrigin.End);
//f.Seek(0, SeekOrigin.Begin);
byte[] data = new byte[filesize];
UnmanagedArray <byte> raw_data;
f.Read(data, 0, (int)filesize);
//f.Close();
f.Seek(0, SeekOrigin.Begin);
//VBM_HEADER * header = (VBM_HEADER *)data;
VBM_HEADER header = br.ReadStruct <VBM_HEADER>();
//raw_data = data + header.size + header->num_attribs * sizeof(VBM_ATTRIB_HEADER) + header->num_frames * sizeof(VBM_FRAME_HEADER);
//{
// long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
// raw_data = new UnmanagedArray<byte>((int)(data.Length - offset));
// for (int i = 0; i < raw_data.Length; i++)
// {
// raw_data[i] = data[offset+i];
// }
//}
//VBM_ATTRIB_HEADER * attrib_header = (VBM_ATTRIB_HEADER *)(data + header.size);
VBM_ATTRIB_HEADER attrib_header = br.ReadStruct <VBM_ATTRIB_HEADER>();
//VBM_FRAME_HEADER * frame_header = (VBM_FRAME_HEADER *)(data + header.size + header.num_attribs * sizeof(VBM_ATTRIB_HEADER));
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
VBM_FRAME_HEADER frame_header = br.ReadStruct <VBM_FRAME_HEADER>();
uint total_data_size = 0;
//memcpy(&m_header, header, header.size < Marshal.SizeOf(typeof(VBM_HEADER)) ? header.size : Marshal.SizeOf(typeof(VBM_HEADER)));
this.m_header = header;
//memcpy(m_attrib, attrib_header, header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)));
{
long offset = header.size;// +header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_attrib = new VBM_ATTRIB_HEADER[header.num_attribs];
for (int i = 0; i < header.num_attribs; i++)
{
this.m_attrib[i] = br.ReadStruct <VBM_ATTRIB_HEADER>();
}
//memcpy(m_frame, frame_header, header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER)));
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));// +header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_frame = new VBM_FRAME_HEADER[header.num_frames];
for (int i = 0; i < header.num_frames; i++)
{
this.m_frame[i] = br.ReadStruct <VBM_FRAME_HEADER>();
}
GL.GenVertexArrays(1, m_vao);
GL.BindVertexArray(m_vao[0]);
GL.GenBuffers(1, m_attribute_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, m_attribute_buffer[0]);
//uint i;
for (uint i = 0; i < header.num_attribs; i++)
{
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
raw_data = new UnmanagedArray <byte>((int)total_data_size);
for (int i = 0; i < raw_data.Length; i++)
{
raw_data[i] = data[offset + i];
}
}
//GL.BufferData(GL_ARRAY_BUFFER, total_data_size, raw_data, GL_STATIC_DRAW);
GL.BufferData(BufferTarget.ArrayBuffer, raw_data, BufferUsage.StaticDraw);
total_data_size = 0;
for (uint i = 0; i < header.num_attribs; i++)
{
uint attribIndex = i;
if (attribIndex == 0)
{
attribIndex = (uint)vertexIndex;
}
else if (attribIndex == 1)
{
attribIndex = (uint)normalIndex;
}
else if (attribIndex == 2)
{
attribIndex = (uint)texCoord0Index;
}
GL.VertexAttribPointer(attribIndex, (int)m_attrib[i].components, m_attrib[i].type, false, 0, new IntPtr(total_data_size));
GL.EnableVertexAttribArray(attribIndex);
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
if (header.num_indices > 0)
{
GL.GenBuffers(1, m_index_buffer);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_index_buffer[0]);
uint element_size;
if (header.indexype == 0x1403)
{
element_size = sizeof(ushort);
}
else
{
element_size = sizeof(uint);
}
//GL.BufferData(GL_ELEMENT_ARRAY_BUFFER, header.num_indices * element_size, raw_data + total_data_size, GL_STATIC_DRAW);
UnmanagedArray <byte> tmp = new UnmanagedArray <byte>((int)(header.num_indices * element_size));
for (int t = 0; t < tmp.Length; t++)
{
tmp[t] = raw_data[(int)(t + total_data_size)];
}
GL.BufferData(BufferTarget.ElementArrayBuffer, tmp, BufferUsage.StaticDraw);
tmp.Dispose();
}
GL.BindVertexArray(0);
if (m_header.num_materials != 0)
{
m_material = new VBM_MATERIAL[m_header.num_materials];
//memcpy(m_material, raw_data + total_data_size, m_header.num_materials * sizeof(VBM_MATERIAL));
{
var offset = header.size + total_data_size;
f.Seek(offset, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_materials; t++)
{
m_material[t] = br.ReadStruct <VBM_MATERIAL>();
}
total_data_size += (uint)(m_header.num_materials * Marshal.SizeOf(typeof(VBM_MATERIAL)));
m_material_textures = new material_texture[m_header.num_materials];
//memset(m_material_textures, 0, m_header.num_materials * sizeof(*m_material_textures));
{
var offset = 0;
f.Seek(0, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_materials; t++)
{
m_material_textures[t] = br.ReadStruct <material_texture>();
}
}
if (m_header.num_chunks != 0)
{
m_chunks = new VBM_RENDER_CHUNK[m_header.num_chunks];
//memcpy(m_chunks, raw_data + total_data_size, m_header.num_chunks * sizeof(VBM_RENDER_CHUNK));
{
var offset = m_header.size + total_data_size;
f.Seek(offset, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_chunks; t++)
{
m_chunks[t] = br.ReadStruct <VBM_RENDER_CHUNK>();
}
//total_data_size += m_header.num_chunks * sizeof(VBM_RENDER_CHUNK);
}
raw_data.Dispose();
return(true);
}
private void InitVAO()
{
int size = this.size;
this.vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// prepare positions
{
var positionArray = new UnmanagedArray <vec3>(size * size * size * 14);
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
for (int cubeIndex = 0; cubeIndex < 14; cubeIndex++)
{
positionArray[index++] = unitCubePos[cubeIndex]
+ new vec3((i - size / 2) * unitSpace, (j - size / 2) * unitSpace, (k - size / 2) * unitSpace);
}
}
}
}
uint in_PositionLocation = shaderProgram.GetAttributeLocation(strin_Position);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_PositionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_PositionLocation);
positionArray.Dispose();
}
// prepare colors
{
var colorArray = new UnmanagedArray <vec3>(size * size * size * 14);
Random random = new Random();
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
//vec3 color = new vec3((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble());
for (int cubeIndex = 0; cubeIndex < 14; cubeIndex++)
{
vec3 color = new vec3((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble());
colorArray[index++] = color;
}
}
}
}
uint in_ColorLocation = shaderProgram.GetAttributeLocation(strin_Color);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_ColorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_ColorLocation);
colorArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
// prepare firsts and counts
{
// todo: rename 'size'
this.firsts = new int[size * size * size];
for (int i = 0; i < this.firsts.Length; i++)
{
this.firsts[i] = i * 14;
}
this.counts = new int[size * size * size];
for (int i = 0; i < this.counts.Length; i++)
{
this.counts[i] = 14;
}
}
}
protected void InitializeVAO(out uint[] vao, out DrawMode primitiveMode, out int vertexCount)
{
primitiveMode = DrawMode.QuadStrip;// PrimitiveModes.QuadStrip;
vertexCount = faceCount * 2;
vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create a vertex buffer for the vertex data.
{
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
UnmanagedArray<vec3> positionArray = new UnmanagedArray<vec3>(faceCount * 2);
for (int i = 0; i < faceCount * 2; i++)
{
int face = i / 2;
positionArray[i] = new vec3(
(float)(this.radius * Math.Cos(face * (Math.PI * 2) / faceCount)),
(i % 2 == 1 ? -1 : 1) * this.height / 2,
(float)(this.radius * Math.Sin(face * (Math.PI * 2) / faceCount))
);
}
uint positionLocation = shaderProgram.GetAttributeLocation(strin_Position);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(positionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(positionLocation);
positionArray.Dispose();
}
// Now do the same for the colour data.
{
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
UnmanagedArray<vec3> colorArray = new UnmanagedArray<vec3>(faceCount * 2);
for (int i = 0; i < colorArray.Length; i++)
{
if (i % 2 == 0)
{
colorArray[i] = new vec3(1, 0, 0); //new vec3((i % 3) / 3.0f, (i + 1) % 3 / 3.0f, (i + 2) % 3 / 3.0f);
}
else
{
colorArray[i] = new vec3(0, 1, 0); //new vec3((i % 3) / 3.0f, (i + 1) % 3 / 3.0f, (i + 2) % 3 / 3.0f);
}
}
uint colorLocation = shaderProgram.GetAttributeLocation(strin_Color);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(colorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(colorLocation);
colorArray.Dispose();
}
{
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, ids[0]);
UnmanagedArray<uint> cylinderIndex = new UnmanagedArray<uint>(faceCount * 2 + 2);
for (int i = 0; i < cylinderIndex.Length - 2; i++)
{
cylinderIndex[i] = (uint)i;
}
cylinderIndex[cylinderIndex.Length - 2] = 0;
cylinderIndex[cylinderIndex.Length - 1] = 1;
GL.BufferData(BufferTarget.ElementArrayBuffer, cylinderIndex, BufferUsage.StaticDraw);
cylinderIndex.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
private void InitVAO()
{
primitiveMode = PrimitiveModes.Points;
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create a vertex buffer for the vertex data.
{
UnmanagedArray<vec3> in_Position = new UnmanagedArray<vec3>(1);
in_Position[0] = this.position;
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, in_Position, BufferUsage.StaticDraw);
GL.VertexAttribPointer(attributeIndexPosition, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(attributeIndexPosition);
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
public bool LoadFromVBM(string filename, int vertexIndex, int normalIndex, int texCoord0Index)
{
FileStream f = new FileStream(filename, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(f);
long filesize = f.Length;
byte[] data = new byte[filesize];
UnmanagedArray <byte> raw_data;
f.Read(data, 0, (int)filesize);
f.Seek(0, SeekOrigin.Begin);
VBM_HEADER header = br.ReadStruct <VBM_HEADER>();
VBM_ATTRIB_HEADER attrib_header = br.ReadStruct <VBM_ATTRIB_HEADER>();
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
VBM_FRAME_HEADER frame_header = br.ReadStruct <VBM_FRAME_HEADER>();
uint total_data_size = 0;
this.m_header = header;
{
long offset = header.size;// +header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_attrib = new VBM_ATTRIB_HEADER[header.num_attribs];
for (int i = 0; i < header.num_attribs; i++)
{
this.m_attrib[i] = br.ReadStruct <VBM_ATTRIB_HEADER>();
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));// +header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_frame = new VBM_FRAME_HEADER[header.num_frames];
for (int i = 0; i < header.num_frames; i++)
{
this.m_frame[i] = br.ReadStruct <VBM_FRAME_HEADER>();
}
GL.GenVertexArrays(1, m_vao);
GL.BindVertexArray(m_vao[0]);
GL.GenBuffers(1, m_attribute_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, m_attribute_buffer[0]);
//uint i;
for (uint i = 0; i < header.num_attribs; i++)
{
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
raw_data = new UnmanagedArray <byte>((int)total_data_size);
for (int i = 0; i < raw_data.Length; i++)
{
raw_data[i] = data[offset + i];
}
}
//GL.BufferData(GL_ARRAY_BUFFER, total_data_size, raw_data, GL_STATIC_DRAW);
GL.BufferData(BufferTarget.ArrayBuffer, raw_data, BufferUsage.StaticDraw);
total_data_size = 0;
for (uint i = 0; i < header.num_attribs; i++)
{
uint attribIndex = i;
if (attribIndex == 0)
{
attribIndex = (uint)vertexIndex;
}
else if (attribIndex == 1)
{
attribIndex = (uint)normalIndex;
}
else if (attribIndex == 2)
{
attribIndex = (uint)texCoord0Index;
}
GL.VertexAttribPointer(attribIndex, (int)m_attrib[i].components, m_attrib[i].type, false, 0, new IntPtr(total_data_size));
GL.EnableVertexAttribArray(attribIndex);
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
if (header.num_indices > 0)
{
GL.GenBuffers(1, m_index_buffer);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_index_buffer[0]);
uint element_size;
if (header.indexype == 0x1403)
{
element_size = sizeof(ushort);
}
else
{
element_size = sizeof(uint);
}
//GL.BufferData(GL_ELEMENT_ARRAY_BUFFER, header.num_indices * element_size, raw_data + total_data_size, GL_STATIC_DRAW);
UnmanagedArray <byte> tmp = new UnmanagedArray <byte>((int)(header.num_indices * element_size));
for (int t = 0; t < tmp.Length; t++)
{
tmp[t] = raw_data[(int)(t + total_data_size)];
}
GL.BufferData(BufferTarget.ElementArrayBuffer, tmp, BufferUsage.StaticDraw);
tmp.Dispose();
}
GL.BindVertexArray(0);
raw_data.Dispose();
return(true);
}
private void InitVAO()
{
this.axisPrimitiveMode = DrawMode.QuadStrip;
GLColor[] colors = this.ColorPalette.Colors;
float[] coords = this.ColorPalette.Coords;
this.numbers = new PointSpriteStringElement[coords.Length];
this.vertexCount = coords.Length * 2;
this.vao = new uint[1];
float coordLength = coords[coords.Length - 1] - coords[0];
{
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create a vertex buffer for the vertex data.
{
UnmanagedArray <vec3> positionArray = new UnmanagedArray <vec3>(this.vertexCount);
positionArray[0] = new vec3(-0.5f, -0.5f, 0);
positionArray[1] = new vec3(-0.5f, 0.5f, 0);
for (int i = 1; i < coords.Length; i++)
{
float x = (coords[i] - coords[0]) / coordLength - 0.5f;
positionArray[i * 2 + 0] = new vec3(x, -0.5f, 0);
positionArray[i * 2 + 1] = new vec3(x, 0.5f, 0);
}
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_PositionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_PositionLocation);
positionArray.Dispose();
}
// Now do the same for the colour data.
{
var colorArray = new UnmanagedArray <vec4>(this.vertexCount);
for (int i = 0; i < colors.Length; i++)
{
GLColor color = colors[i];
colorArray[i * 2 + 0] = new vec4(color.R, color.G, color.B, color.A);
colorArray[i * 2 + 1] = new vec4(color.R, color.G, color.B, color.A);
}
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_ColorLocation, 4, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_ColorLocation);
colorArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
// prepare numbers
{
const float numberPosY = -0.6f;
this.numbers[0] = new PointSpriteStringElement(
this.Min.ToShortString(), new vec3(-0.5f, numberPosY, 0));
this.numbers[0].Initialize();
for (int i = 1; i < coords.Length; i++)
{
float x = (coords[i] - coords[0]) / coordLength - 0.5f;
if (i + 1 == coords.Length)
{
this.numbers[i] = new PointSpriteStringElement(
(this.Min + i * this.Step).ToShortString(), new vec3(x, numberPosY, 0));
}
else
{
this.numbers[i] = new PointSpriteStringElement(
this.Max.ToShortString(), new vec3(x, numberPosY, 0));
}
this.numbers[i].Initialize();
}
}
}
protected void InitializeVAO(OpenGL gl, out uint[] vao, out BeginMode primitiveMode, out int vertexCount)
{
primitiveMode = BeginMode.QuadStrip;
vertexCount = (faceCount * 2 + 2) * (this.pipe.Count - 1);
UnmanagedArray <Vertex> positionArray = new UnmanagedArray <Vertex>(vertexCount);
{
int index = 0;
for (int i = 1; i < this.pipe.Count; i++)
{
Vertex p1 = this.pipe[i - 1];
Vertex p2 = this.pipe[i];
Vertex vector = p2 - p1;// 从p1到p2的向量
// 找到互相垂直的三个向量：vector, orthogontalVector1和orthogontalVector2
Vertex orthogontalVector1 = new Vertex(vector.Y - vector.Z, vector.Z - vector.X, vector.X - vector.Y);
Vertex orthogontalVector2 = vector.VectorProduct(orthogontalVector1);
orthogontalVector1.Normalize();
orthogontalVector2.Normalize();
orthogontalVector1 *= (float)Math.Sqrt(this.radius);
orthogontalVector2 *= (float)Math.Sqrt(this.radius);
for (int faceIndex = 0; faceIndex < faceCount + 1; faceIndex++)
{
double angle = (Math.PI * 2 * faceIndex) / faceCount;
Vertex point = orthogontalVector1 * (float)Math.Cos(angle) + orthogontalVector2 * (float)Math.Sin(angle);
positionArray[index++] = p2 + point;
positionArray[index++] = p1 + point;
}
//positionArray[index++] = new vec3();//用于分割圆柱体
}
}
UnmanagedArray <Vertex> colorArray = new UnmanagedArray <Vertex>(vertexCount);
{
Vertex vColor = new Vertex(this.color.R, this.color.G, this.color.B);
for (int i = 0; i < colorArray.Length; i++)
{
colorArray[i] = vColor;
// 测试时用此代码区分各个圆柱
//if ((i / (faceCount * 2 + 2)) % 3 == 0)
//{
// colorArray[i] = new vec3(1, 0, 0);
//}
//else if ((i / (faceCount * 2 + 2)) % 3 == 1)
//{
// colorArray[i] = new vec3(0, 1, 0);
//}
//else
//{
// colorArray[i] = new vec3(0, 0, 1);
//}
}
}
UnmanagedArray <uint> indexArray = new UnmanagedArray <uint>(vertexCount + (this.pipe.Count - 1));
{
uint positionIndex = 0;
for (int i = 0; i < indexArray.Length; i++)
{
if (i % (faceCount * 2 + 2 + 1) == (faceCount * 2 + 2))
{
indexArray[i] = uint.MaxValue;//分割各个圆柱体
}
else
{
indexArray[i] = positionIndex++;
}
}
}
vao = new uint[1];
gl.GenVertexArrays(1, vao);
gl.BindVertexArray(vao[0]);
{
uint[] ids = new uint[1];
gl.GenBuffers(1, ids);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, ids[0]);
int location = gl.GetAttribLocation(shaderProgram.ShaderProgramObject, strin_Position);
if (location < 0)
{
throw new Exception();
}
uint positionLocation = (uint)location;
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, positionArray.ByteLength, positionArray.Header, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(positionLocation, 3, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(positionLocation);
positionArray.Dispose();
this.positionBufferObject = ids[0];
}
{
uint[] ids = new uint[1];
gl.GenBuffers(1, ids);
gl.BindBuffer(OpenGL.GL_ARRAY_BUFFER, ids[0]);
int location = gl.GetAttribLocation(shaderProgram.ShaderProgramObject, strin_Color);
if (location < 0)
{
throw new Exception();
}
uint colorLocation = (uint)location;
gl.BufferData(OpenGL.GL_ARRAY_BUFFER, colorArray.ByteLength, colorArray.Header, OpenGL.GL_STATIC_DRAW);
gl.VertexAttribPointer(colorLocation, 3, OpenGL.GL_FLOAT, false, 0, IntPtr.Zero);
gl.EnableVertexAttribArray(colorLocation);
colorArray.Dispose();
this.colorBufferObject = ids[0];
}
{
uint[] ids = new uint[1];
gl.GenBuffers(1, ids);
gl.BindBuffer(OpenGL.GL_ELEMENT_ARRAY_BUFFER, ids[0]);
gl.BufferData(OpenGL.GL_ELEMENT_ARRAY_BUFFER, indexArray.ByteLength, indexArray.Header, OpenGL.GL_STATIC_DRAW);
indexArray.Dispose();
this.indexBufferObject = ids[0];
}
// Unbind the vertex array, we've finished specifying data for it.
gl.BindVertexArray(0);
}
private void InitVAO()
{
this.axisPrimitiveMode = DrawMode.Lines;
this.axisVertexCount = 8 * 3;
this.vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create a vertex buffer for the vertex data.
{
UnmanagedArray <vec3> positionArray = new UnmanagedArray <vec3>(8 * 3);
const float halfLength = 0.5f;
// x axis
positionArray[0] = new vec3(-halfLength, -halfLength, -halfLength);
positionArray[1] = new vec3(halfLength, -halfLength, -halfLength);
positionArray[2] = new vec3(-halfLength, -halfLength, halfLength);
positionArray[3] = new vec3(halfLength, -halfLength, halfLength);
positionArray[4] = new vec3(-halfLength, halfLength, halfLength);
positionArray[5] = new vec3(halfLength, halfLength, halfLength);
positionArray[6] = new vec3(-halfLength, halfLength, -halfLength);
positionArray[7] = new vec3(halfLength, halfLength, -halfLength);
// y axis
positionArray[8 + 0] = new vec3(-halfLength, -halfLength, -halfLength);
positionArray[8 + 1] = new vec3(-halfLength, halfLength, -halfLength);
positionArray[8 + 2] = new vec3(-halfLength, -halfLength, halfLength);
positionArray[8 + 3] = new vec3(-halfLength, halfLength, halfLength);
positionArray[8 + 4] = new vec3(halfLength, -halfLength, halfLength);
positionArray[8 + 5] = new vec3(halfLength, halfLength, halfLength);
positionArray[8 + 6] = new vec3(halfLength, -halfLength, -halfLength);
positionArray[8 + 7] = new vec3(halfLength, halfLength, -halfLength);
// z axis
positionArray[16 + 0] = new vec3(-halfLength, -halfLength, -halfLength);
positionArray[16 + 1] = new vec3(-halfLength, -halfLength, halfLength);
positionArray[16 + 2] = new vec3(-halfLength, halfLength, -halfLength);
positionArray[16 + 3] = new vec3(-halfLength, halfLength, halfLength);
positionArray[16 + 4] = new vec3(halfLength, halfLength, -halfLength);
positionArray[16 + 5] = new vec3(halfLength, halfLength, halfLength);
positionArray[16 + 6] = new vec3(halfLength, -halfLength, -halfLength);
positionArray[16 + 7] = new vec3(halfLength, -halfLength, halfLength);
uint positionLocation = shaderProgram.GetAttributeLocation(strin_Position);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(positionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(positionLocation);
positionArray.Dispose();
}
// Now do the same for the colour data.
{
UnmanagedArray <vec3> colorArray = new UnmanagedArray <vec3>(8 * 3);
vec3[] colors = new vec3[] { new vec3(1, 0, 0), new vec3(0, 1, 0), new vec3(0, 0, 1), };
for (int i = 0; i < colorArray.Length; i++)
{
colorArray[i] = colors[i / 8];
}
uint colorLocation = shaderProgram.GetAttributeLocation(strin_Color);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(colorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(colorLocation);
colorArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
} // end sub
#endregion
protected override void DoInitialize()
{
skybox_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(skybox_prog, ShaderType.VertexShader, skybox_shader_vs);
ShaderHelper.vglAttachShaderSource(skybox_prog, ShaderType.FragmentShader, skybox_shader_fs);
GL.LinkProgram(skybox_prog);
object_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(object_prog, ShaderType.VertexShader, object_shader_vs);
ShaderHelper.vglAttachShaderSource(object_prog, ShaderType.FragmentShader, object_shader_fs);
GL.LinkProgram(object_prog);
GL.GenBuffers(1, cube_vbo);
GL.BindBuffer(BufferTarget.ArrayBuffer, cube_vbo[0]);
var cube_vertices = new UnmanagedArray <vec3>(8);
cube_vertices[0] = new vec3(-1.0f, -1.0f, -1.0f);
cube_vertices[1] = new vec3(-1.0f, -1.0f, 1.0f);
cube_vertices[2] = new vec3(-1.0f, 1.0f, -1.0f);
cube_vertices[3] = new vec3(-1.0f, 1.0f, 1.0f);
cube_vertices[4] = new vec3(1.0f, -1.0f, -1.0f);
cube_vertices[5] = new vec3(1.0f, -1.0f, 1.0f);
cube_vertices[6] = new vec3(1.0f, 1.0f, -1.0f);
cube_vertices[7] = new vec3(1.0f, 1.0f, 1.0f);
var cube_indices = new UnmanagedArray <ushort>(16);
// First strip
cube_indices[0] = 0;
cube_indices[1] = 1;
cube_indices[2] = 2;
cube_indices[3] = 3;
cube_indices[4] = 6;
cube_indices[5] = 7;
cube_indices[6] = 4;
cube_indices[7] = 5;
// Second strip
cube_indices[8] = 2;
cube_indices[9] = 6;
cube_indices[10] = 0;
cube_indices[11] = 4;
cube_indices[12] = 1;
cube_indices[13] = 5;
cube_indices[14] = 3;
cube_indices[15] = 7;
GL.BufferData(BufferTarget.ArrayBuffer, cube_vertices, BufferUsage.StaticDraw);
cube_vertices.Dispose();
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
GL.VertexAttribPointer(0, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(0);
GL.GenBuffers(1, cube_element_buffer);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, cube_element_buffer[0]);
GL.BufferData(BufferTarget.ElementArrayBuffer, cube_indices, BufferUsage.StaticDraw);
cube_indices.Dispose();
skybox_rotate_loc = GL.GetUniformLocation(skybox_prog, "tc_rotate");
object_mat_mvp_loc = GL.GetUniformLocation(object_prog, "mat_mvp");
object_mat_mv_loc = GL.GetUniformLocation(object_prog, "mat_mv");
skyboxTexLocation = GL.GetUniformLocation(skybox_prog, "tex");
objectTexLocation = GL.GetUniformLocation(object_prog, "tex");
//tex = new Texture2D();
//System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(@"media\TantolundenCube.png");
//tex.Initialize(bmp);
vglImageData data = new vglImageData();
tex = vgl.vglLoadTexture(@"media\TantolundenCube.dds", 0, ref data);
uint e = GL.GetError();
vgl.vglUnloadImage(ref data);
vboObject.LoadFromVBM(@"media\unit_torus.vbm", 0, 1, 2);
}
public void CopyTo <T>(UnmanagedArray <T> heightStickArray, int index) where T : struct
{
if (Heightmap is null)
{
throw new InvalidOperationException($"{ nameof(Heightmap) } is a null");
}
if (heightStickArray is null)
{
throw new ArgumentNullException(nameof(heightStickArray));
}
var heightStickArrayLength = heightStickArray.Length - index;
if (heightStickArrayLength <= 0)
{
throw new IndexOutOfRangeException(nameof(index));
}
var typeOfT = typeof(T);
T[] heights;
if (typeOfT == typeof(float))
{
if (Heightmap.Floats is null)
{
throw new InvalidOperationException($"{ nameof(Heightmap.Floats) } is a null.");
}
heights = (T[])(object)Heightmap.Floats;
}
else if (typeOfT == typeof(short))
{
if (Heightmap.Shorts is null)
{
throw new InvalidOperationException($"{ nameof(Heightmap.Shorts) } is a null.");
}
heights = (T[])(object)Heightmap.Shorts;
}
else if (typeOfT == typeof(byte))
{
if (Heightmap.Bytes is null)
{
throw new InvalidOperationException($"{ nameof(Heightmap.Bytes) } is a null.");
}
heights = (T[])(object)Heightmap.Bytes;
}
else
{
throw new NotSupportedException($"{ typeof(UnmanagedArray<T>) } type is not supported.");
}
var heightsLength = heights.Length;
if (heightStickArrayLength < heightsLength)
{
throw new ArgumentException($"{ nameof(heightStickArray) }.{ nameof(heightStickArray.Length) } is not enough to copy.");
}
heightStickArray.Write(heights, index * Utilities.SizeOf <T>(), 0, heightsLength);
}
private void InitBuffer()
{
BufferName = new uint[2];
GL.GenBuffers(BufferName.Length, BufferName);
int[] UniformBufferOffset = new int[1];
GL.GetInteger(GetTarget.UniformBufferOffsetAlignment, UniformBufferOffset);
int mat4Size = Marshal.SizeOf(typeof(mat4));
int UniformBlockSize = Math.Max(mat4Size, UniformBufferOffset[0]);
GL.BindBuffer(BufferTarget.UniformBuffer, BufferName[1]);
var buffer = new UnmanagedArray<byte>(UniformBlockSize);
GL.BufferData(BufferTarget.UniformBuffer, buffer, BufferUsage.DynamicDraw);
GL.BindBuffer(BufferTarget.UniformBuffer, 0);
transformBuffer = new uint[1];
GL.GenBuffers(transformBuffer.Length, transformBuffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, transformBuffer[0]);
UnmanagedArray<vec4> positionData = new UnmanagedArray<vec4>(6);
positionData[0] = new vec4(-1.0f, -1.0f, 0.0f, 1.0f);
positionData[1] = new vec4(1.0f, -1.0f, 0.0f, 1.0f);
positionData[2] = new vec4(1.0f, 1.0f, 0.0f, 1.0f);
positionData[3] = new vec4(1.0f, 1.0f, 0.0f, 1.0f);
positionData[4] = new vec4(-1.0f, 1.0f, 0.0f, 1.0f);
positionData[5] = new vec4(-1.0f, -1.0f, 0.0f, 1.0f);
GL.BufferData(BufferTarget.ArrayBuffer, positionData, BufferUsage.StaticDraw);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
feedBackBuffer = new uint[1];
GL.GenBuffers(feedBackBuffer.Length, feedBackBuffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, feedBackBuffer[0]);
UnmanagedArray<vec4> tmp = new UnmanagedArray<vec4>(2 * 6);
GL.BufferData(BufferTarget.ArrayBuffer, tmp, BufferUsage.StaticDraw);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
}
} // end sub
#endregion
protected override void DoInitialize()
{
render_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(render_prog, ShaderType.VertexShader, render_vs);
ShaderHelper.vglAttachShaderSource(render_prog, ShaderType.FragmentShader, render_fs);
GL.LinkProgram(render_prog);
GL.UseProgram(render_prog);
view_matrix_loc = GL.GetUniformLocation(render_prog, "view_matrix");
projection_matrix_loc = GL.GetUniformLocation(render_prog, "projection_matrix");
vboObject.LoadFromVBM(@"media\armadillo_low.vbm", 0, 1, 2);
// Bind its vertex array object so that we can append the instanced attributes
vboObject.BindVertexArray();
// Get the locations of the vertex attributes in 'prog', which is the
// (linked) program object that we're going to be rendering with. Note
// that this isn't really necessary because we specified locations for
// all the attributes in our vertex shader. This code could be made
// more concise by assuming the vertex attributes are where we asked
// the compiler to put them.
int position_loc = GL.GetAttribLocation(render_prog, "position");
int normal_loc = GL.GetAttribLocation(render_prog, "normal");
int color_loc = GL.GetAttribLocation(render_prog, "color");
int matrix_loc = GL.GetAttribLocation(render_prog, "model_matrix");
// Generate the colors of the objects
var colors = new UnmanagedArray <vec4>(INSTANCE_COUNT);
for (int n = 0; n < INSTANCE_COUNT; n++)
{
float a = (float)(n) / 4.0f;
float b = (float)(n) / 5.0f;
float c = (float)(n) / 6.0f;
colors[n] = new vec4(
(float)(0.5f + 0.25f * (Math.Sin(a + 1.0f) + 1.0f)),
(float)(0.5f + 0.25f * (Math.Sin(b + 2.0f) + 1.0f)),
(float)(0.5f + 0.25f * (Math.Sin(c + 3.0f) + 1.0f)),
(float)(1.0f)
);
}
GL.GenBuffers(1, color_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, color_buffer[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colors, BufferUsage.DynamicDraw);
colors.Dispose();
// Now we set up the color array. We want each instance of our geometry
// to assume a different color, so we'll just pack colors into a buffer
// object and make an instanced vertex attribute out of it.
GL.BindBuffer(BufferTarget.ArrayBuffer, color_buffer[0]);
GL.VertexAttribPointer((uint)color_loc, 4, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray((uint)color_loc);
// This is the important bit... set the divisor for the color array to
// 1 to get OpenGL to give us a new value of 'color' per-instance
// rather than per-vertex.
GL.VertexAttribDivisor((uint)color_loc, 1);
// Likewise, we can do the same with the model matrix. Note that a
// matrix input to the vertex shader consumes N consecutive input
// locations, where N is the number of columns in the matrix. So...
// we have four vertex attributes to set up.
UnmanagedArray <mat4> tmp = new UnmanagedArray <mat4>(INSTANCE_COUNT);
GL.GenBuffers(1, model_matrix_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, model_matrix_buffer[0]);
GL.BufferData(BufferTarget.ArrayBuffer, tmp, BufferUsage.DynamicDraw);
tmp.Dispose();
// Loop over each column of the matrix...
for (int i = 0; i < 4; i++)
{
// Set up the vertex attribute
GL.VertexAttribPointer((uint)(matrix_loc + i), // Location
4, GL.GL_FLOAT, false, // vec4
Marshal.SizeOf(typeof(mat4)), // Stride
new IntPtr(Marshal.SizeOf(typeof(vec4)) * i)); // Start offset
// Enable it
GL.EnableVertexAttribArray((uint)(matrix_loc + i));
// Make it instanced
GL.VertexAttribDivisor((uint)(matrix_loc + i), 1);
}
// Done (unbind the object's VAO)
GL.BindVertexArray(0);
}
private void DoRender(object sender, PaintEventArgs e)
{
// Compute the MVP (Model View Projection matrix)
{
GL.BindBuffer(BufferTarget.UniformBuffer, BufferName[1]);//BufferName[TRANSFORM]
var mvpPointer = GL.MapBufferRange(GL.GL_UNIFORM_BUFFER, 0, 64, (uint)(GL.GL_MAP_WRITE_BIT | GL.GL_MAP_INVALIDATE_BUFFER_BIT));
var tmp = new UnmanagedArray<mat4>(1);
mat4 projection = this.camera.GetProjectionMat4();
mat4 view = this.camera.GetViewMat4();
//tmp[0] = projection * view;
//tmp.CopyTo(Pointer);
unsafe
{
mat4* array = (mat4*)mvpPointer.ToPointer();
array[0] = projection * view;
}
GL.UnmapBuffer(GL.GL_UNIFORM_BUFFER);
tmp.Dispose();
}
// Clear color buffer
//GL.ClearBufferfv(GL_COLOR, 0, &GL.m.vec4(0.0f, 0.0f, 0.0f, 1.0f)[0]);
GL.ClearBuffer(GL.GL_COLOR, 0, new float[] { 0.0f, 0.0f, 0.0f, 1.0f });
// First draw, capture the attributes
// Disable rasterisation, vertices processing only!
GL.Enable(GL.GL_RASTERIZER_DISCARD);
transformProgram.Bind();
GL.BindVertexArray(transformArray[0]);
//GL.BindBufferBase(GL.GL_UNIFORM_BUFFER, semantic.uniform.TRANSFORM0, BufferName[buffer.TRANSFORM]);
GL.BindBufferBase(GL.GL_UNIFORM_BUFFER, 1, BufferName[1]);
GL.BindTransformFeedback(GL.GL_TRANSFORM_FEEDBACK, feedbackObj[0]);
GL.BeginTransformFeedback(GL.GL_TRIANGLES);
GL.DrawArraysInstanced(GL.GL_TRIANGLES, 0, 6, 1);//VertexCount: 6
GL.EndTransformFeedback();
GL.BindTransformFeedback(GL.GL_TRANSFORM_FEEDBACK, 0);
GL.Disable(GL.GL_RASTERIZER_DISCARD);
// Second draw, reuse the captured attributes
feedbackProgram.Bind();
GL.BindVertexArray(feedbackArray[0]);
GL.DrawTransformFeedback(GL.GL_TRIANGLES, feedbackObj[0]);
}
public HeightfieldColliderShape(int heightStickWidth, int heightStickLength, UnmanagedArray <float> dynamicFieldData, float heightScale, float minHeight, float maxHeight, bool flipQuadEdges)
: this(heightStickWidth, heightStickLength, HeightfieldTypes.Float, dynamicFieldData, heightScale, minHeight, maxHeight, flipQuadEdges)
{
}
protected override void DoInitialize()
{
// Create a vertex array object
uint[] vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create and initialize a buffer object
uint[] buffers = new uint[NumVertexBuffers];
GL.GenBuffers(NumVertexBuffers, buffers);
GL.BindBuffer(GL.GL_ARRAY_BUFFER, buffers[ArrayBuffer]);
//GL.BufferData( GL.GL_ARRAY_BUFFER, sizeof(TeapotVertices), TeapotVertices, GL_STATIC_DRAW );
UnmanagedArray <vec3> positions = new UnmanagedArray <vec3>(TeapotExampleHelper.NumTeapotVertices);
for (int i = 0; i < positions.Length; i++)
{
positions[i] = TeapotExampleHelper.TeapotVertices[i];
}
GL.BufferData(BufferTarget.ArrayBuffer, positions, BufferUsage.StaticDraw);
GL.BindBuffer(GL.GL_ELEMENT_ARRAY_BUFFER, buffers[ElementBuffer]);
//GL.BufferData( GL_ELEMENT_ARRAY_BUFFER, sizeof(TeapotIndices), TeapotIndices, GL_STATIC_DRAW );
UnmanagedArray <uint> indexes = new UnmanagedArray <uint>(TeapotExampleHelper.NumTeapotPatches * 4 * 4);
for (int i = 0; i < indexes.Length; i++)
{
indexes[i] = TeapotExampleHelper.TeapotIndices[i];
}
GL.BufferData(BufferTarget.ElementArrayBuffer, indexes, BufferUsage.StaticDraw);
// Load shaders and use the resulting shader program
ShaderInfo[] shaders = new ShaderInfo[]
{
new ShaderInfo()
{
type = ShaderType.VertexShader, shaderSource = ManifestResourceLoader.LoadTextFile("teapot.vert"),
},
new ShaderInfo()
{
type = ShaderType.TessellationControlShader, shaderSource = ManifestResourceLoader.LoadTextFile("teapot.cont"),
},
//new ShaderInfo(){ type= ShaderType.TessellationEvaluationShader, shaderSource=ManifestResourceLoader.LoadTextFile("teapot.eval"),},
new ShaderInfo()
{
type = ShaderType.FragmentShader, shaderSource = ManifestResourceLoader.LoadTextFile("teapot.frag"),
},
};
//uint program = LoadShaders( shaders );
shaderProgramObject = shaders.LoadShaders();
GL.UseProgram(shaderProgramObject);
// set up vertex arrays
int vPosition = GL.GetAttribLocation(shaderProgramObject, "vPosition");
GL.EnableVertexAttribArray((uint)vPosition);
GL.VertexAttribPointer((uint)vPosition, 3, GL.GL_DOUBLE, false, 0, new IntPtr(0));
PLoc = GL.GetUniformLocation(shaderProgramObject, "P");
InnerLoc = GL.GetUniformLocation(shaderProgramObject, "Inner");
OuterLoc = GL.GetUniformLocation(shaderProgramObject, "Outer");
GL.Uniform1(InnerLoc, Inner);
GL.Uniform1(OuterLoc, Outer);
mat4 modelview = glm.translate(mat4.identity(), new vec3(-0.2625f, -1.575f, -1.0f));
modelview *= glm.translate(modelview, new vec3(0.0f, 0.0f, -7.5f));
GL.UniformMatrix4(GL.GetUniformLocation(shaderProgramObject, "MV"), 1, true, modelview.to_array());
GL.PatchParameter(PatchParameterName.PatchVertices, TeapotExampleHelper.NumTeapotVerticesPerPatch);
}
private void InitVAO()
{
this.axisPrimitiveMode = DrawMode.QuadStrip;
GLColor[] colors = this.ColorPalette.Colors;
float[] coords = this.ColorPalette.Coords;
this.numbers = new PointSpriteStringElement[coords.Length];
this.vertexCount = coords.Length * 2;
this.vao = new uint[1];
float coordLength = coords[coords.Length - 1] - coords[0];
{
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// Create a vertex buffer for the vertex data.
{
UnmanagedArray<vec3> positionArray = new UnmanagedArray<vec3>(this.vertexCount);
positionArray[0] = new vec3(-0.5f, -0.5f, 0);
positionArray[1] = new vec3(-0.5f, 0.5f, 0);
for (int i = 1; i < coords.Length; i++)
{
float x = (coords[i] - coords[0]) / coordLength - 0.5f;
positionArray[i * 2 + 0] = new vec3(x, -0.5f, 0);
positionArray[i * 2 + 1] = new vec3(x, 0.5f, 0);
}
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_PositionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_PositionLocation);
positionArray.Dispose();
}
// Now do the same for the colour data.
{
var colorArray = new UnmanagedArray<vec4>(this.vertexCount);
for (int i = 0; i < colors.Length; i++)
{
GLColor color = colors[i];
colorArray[i * 2 + 0] = new vec4(color.R, color.G, color.B, color.A);
colorArray[i * 2 + 1] = new vec4(color.R, color.G, color.B, color.A);
}
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_ColorLocation, 4, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_ColorLocation);
colorArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
// prepare numbers
{
const float numberPosY = -0.6f;
this.numbers[0] = new PointSpriteStringElement(
this.Min.ToShortString(), new vec3(-0.5f, numberPosY, 0));
this.numbers[0].Initialize();
for (int i = 1; i < coords.Length; i++)
{
float x = (coords[i] - coords[0]) / coordLength - 0.5f;
if (i + 1 == coords.Length)
{
this.numbers[i] = new PointSpriteStringElement(
(this.Min + i * this.Step).ToShortString(), new vec3(x, numberPosY, 0));
}
else
{
this.numbers[i] = new PointSpriteStringElement(
this.Max.ToShortString(), new vec3(x, numberPosY, 0));
}
this.numbers[i].Initialize();
}
}
}
public bool LoadFromVBM(string filename, int vertexIndex, int normalIndex, int texCoord0Index)
{
//FILE * f = NULL;
FileStream f = new FileStream(filename, FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader(f);
//f = fopen(filename, "rb");
//if(f == NULL)
//return false;
//fseek(f, 0, SEEK_END);
//size_t filesize = ftell(f);
//fseek(f, 0, SEEK_SET);
long filesize = f.Length;
//f.Seek(0, SeekOrigin.End);
//f.Seek(0, SeekOrigin.Begin);
byte[] data = new byte[filesize];
UnmanagedArray<byte> raw_data;
f.Read(data, 0, (int)filesize);
//f.Close();
f.Seek(0, SeekOrigin.Begin);
//VBM_HEADER * header = (VBM_HEADER *)data;
VBM_HEADER header = br.ReadStruct<VBM_HEADER>();
//raw_data = data + header.size + header->num_attribs * sizeof(VBM_ATTRIB_HEADER) + header->num_frames * sizeof(VBM_FRAME_HEADER);
//{
// long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
// raw_data = new UnmanagedArray<byte>((int)(data.Length - offset));
// for (int i = 0; i < raw_data.Length; i++)
// {
// raw_data[i] = data[offset+i];
// }
//}
//VBM_ATTRIB_HEADER * attrib_header = (VBM_ATTRIB_HEADER *)(data + header.size);
VBM_ATTRIB_HEADER attrib_header = br.ReadStruct<VBM_ATTRIB_HEADER>();
//VBM_FRAME_HEADER * frame_header = (VBM_FRAME_HEADER *)(data + header.size + header.num_attribs * sizeof(VBM_ATTRIB_HEADER));
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
VBM_FRAME_HEADER frame_header = br.ReadStruct<VBM_FRAME_HEADER>();
uint total_data_size = 0;
//memcpy(&m_header, header, header.size < Marshal.SizeOf(typeof(VBM_HEADER)) ? header.size : Marshal.SizeOf(typeof(VBM_HEADER)));
this.m_header = header;
//memcpy(m_attrib, attrib_header, header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)));
{
long offset = header.size;// +header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_attrib = new VBM_ATTRIB_HEADER[header.num_attribs];
for (int i = 0; i < header.num_attribs; i++)
{
this.m_attrib[i] = br.ReadStruct<VBM_ATTRIB_HEADER>();
}
//memcpy(m_frame, frame_header, header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER)));
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER));// +header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
f.Seek(offset, SeekOrigin.Begin);
}
this.m_frame = new VBM_FRAME_HEADER[header.num_frames];
for (int i = 0; i < header.num_frames; i++)
{
this.m_frame[i] = br.ReadStruct<VBM_FRAME_HEADER>();
}
GL.GenVertexArrays(1, m_vao);
GL.BindVertexArray(m_vao[0]);
GL.GenBuffers(1, m_attribute_buffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, m_attribute_buffer[0]);
//uint i;
for (uint i = 0; i < header.num_attribs; i++)
{
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
{
long offset = header.size + header.num_attribs * Marshal.SizeOf(typeof(VBM_ATTRIB_HEADER)) + header.num_frames * Marshal.SizeOf(typeof(VBM_FRAME_HEADER));
raw_data = new UnmanagedArray<byte>((int)total_data_size);
for (int i = 0; i < raw_data.Length; i++)
{
raw_data[i] = data[offset + i];
}
}
//GL.BufferData(GL_ARRAY_BUFFER, total_data_size, raw_data, GL_STATIC_DRAW);
GL.BufferData(BufferTarget.ArrayBuffer, raw_data, BufferUsage.StaticDraw);
total_data_size = 0;
for (uint i = 0; i < header.num_attribs; i++)
{
uint attribIndex = i;
if (attribIndex == 0)
attribIndex = (uint)vertexIndex;
else if (attribIndex == 1)
attribIndex = (uint)normalIndex;
else if (attribIndex == 2)
attribIndex = (uint)texCoord0Index;
GL.VertexAttribPointer(attribIndex, (int)m_attrib[i].components, m_attrib[i].type, false, 0, new IntPtr(total_data_size));
GL.EnableVertexAttribArray(attribIndex);
total_data_size += m_attrib[i].components * sizeof(float) * header.num_vertices;
}
if (header.num_indices > 0)
{
GL.GenBuffers(1, m_index_buffer);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, m_index_buffer[0]);
uint element_size;
if (header.indexype == 0x1403)
{
element_size = sizeof(ushort);
}
else
{
element_size = sizeof(uint);
}
//GL.BufferData(GL_ELEMENT_ARRAY_BUFFER, header.num_indices * element_size, raw_data + total_data_size, GL_STATIC_DRAW);
UnmanagedArray<byte> tmp = new UnmanagedArray<byte>((int)(header.num_indices * element_size));
for (int t = 0; t < tmp.Length; t++)
{
tmp[t] = raw_data[(int)(t + total_data_size)];
}
GL.BufferData(BufferTarget.ElementArrayBuffer, tmp, BufferUsage.StaticDraw);
tmp.Dispose();
}
GL.BindVertexArray(0);
if (m_header.num_materials != 0)
{
m_material = new VBM_MATERIAL[m_header.num_materials];
//memcpy(m_material, raw_data + total_data_size, m_header.num_materials * sizeof(VBM_MATERIAL));
{
var offset = header.size + total_data_size;
f.Seek(offset, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_materials; t++)
{
m_material[t] = br.ReadStruct<VBM_MATERIAL>();
}
total_data_size += (uint)(m_header.num_materials * Marshal.SizeOf(typeof(VBM_MATERIAL)));
m_material_textures = new material_texture[m_header.num_materials];
//memset(m_material_textures, 0, m_header.num_materials * sizeof(*m_material_textures));
{
var offset = 0;
f.Seek(0, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_materials; t++)
{
m_material_textures[t] = br.ReadStruct<material_texture>();
}
}
if (m_header.num_chunks != 0)
{
m_chunks = new VBM_RENDER_CHUNK[m_header.num_chunks];
//memcpy(m_chunks, raw_data + total_data_size, m_header.num_chunks * sizeof(VBM_RENDER_CHUNK));
{
var offset = m_header.size + total_data_size;
f.Seek(offset, SeekOrigin.Begin);
}
for (int t = 0; t < m_header.num_chunks; t++)
{
m_chunks[t] = br.ReadStruct<VBM_RENDER_CHUNK>();
}
//total_data_size += m_header.num_chunks * sizeof(VBM_RENDER_CHUNK);
}
raw_data.Dispose();
return true;
}
public static void TypicalScene()
{
const int count = 1000000;
long startTick = 0;
long interval, interval2;
// 测试float类型
{
var floatArray = new UnmanagedArray <float>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
floatArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = floatArray[i];
if (item != i)
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
float *header = (float *)floatArray.FirstElement();
float *last = (float *)floatArray.LastElement();
float *tailAddress = (float *)floatArray.TailAddress();
int value = 0;
for (float *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (float *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试decimal类型
{
var decimalArray = new UnmanagedArray <decimal>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
decimalArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = decimalArray[i];
if (item != i)
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
decimal *header = (decimal *)decimalArray.FirstElement();
decimal *last = (decimal *)decimalArray.LastElement();
decimal *tailAddress = (decimal *)decimalArray.TailAddress();
int value = 0;
for (decimal *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (decimal *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试int类型
{
var intArray = new UnmanagedArray <int>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
intArray[i] = i;
}
for (int i = 0; i < count; i++)
{
var item = intArray[i];
if (item != i)
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
int *header = (int *)intArray.FirstElement();
int *last = (int *)intArray.LastElement();
int *tailAddress = (int *)intArray.TailAddress();
int value = 0;
for (int *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = value++;
}
int i = 0;
for (int *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != i)
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试bool类型
{
var boolArray = new UnmanagedArray <bool>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
boolArray[i] = i % 2 == 0;
}
for (int i = 0; i < count; i++)
{
var item = boolArray[i];
if (item != (i % 2 == 0))
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
bool *header = (bool *)boolArray.FirstElement();
bool *last = (bool *)boolArray.LastElement();
bool *tailAddress = (bool *)boolArray.TailAddress();
int value = 0;
for (bool *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = (value % 2 == 0);
value++;
}
int i = 0;
for (bool *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
if (item != (i % 2 == 0))
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试vec3类型
{
var vec3Array = new UnmanagedArray <vec3>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
vec3Array[i] = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{
throw new Exception();
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
vec3 *header = (vec3 *)vec3Array.FirstElement();
vec3 *last = (vec3 *)vec3Array.LastElement();
vec3 *tailAddress = (vec3 *)vec3Array.TailAddress();
int i = 0;
for (vec3 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
i++;
}
i = 0;
for (vec3 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
var old = new vec3(i * 3 + 0, i * 3 + 1, i * 3 + 2);
if (item.x != old.x || item.y != old.y || item.z != old.z)
{
throw new Exception();
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 测试mat4类型
{
var vec3Array = new UnmanagedArray <mat4>(count);
startTick = DateTime.Now.Ticks;
for (int i = 0; i < count; i++)
{
vec3Array[i] = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
}
for (int i = 0; i < count; i++)
{
var item = vec3Array[i];
var old = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
for (int col = 0; col < 4; col++)
{
for (int row = 0; row < 4; row++)
{
if (item[col][row] != old[col][row])
{
throw new Exception();
}
}
}
}
interval = DateTime.Now.Ticks - startTick;
unsafe
{
startTick = DateTime.Now.Ticks;
mat4 *header = (mat4 *)vec3Array.FirstElement();
mat4 *last = (mat4 *)vec3Array.LastElement();
mat4 *tailAddress = (mat4 *)vec3Array.TailAddress();
int i = 0;
for (mat4 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++)
{
*ptr = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
i++;
}
i = 0;
for (mat4 *ptr = header; ptr <= last /*or: ptr < tailAddress*/; ptr++, i++)
{
var item = *ptr;
var old = new mat4(new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3), new vec4(i, i + 1, i + 2, i + 3));
for (int col = 0; col < 4; col++)
{
for (int row = 0; row < 4; row++)
{
if (item[col][row] != old[col][row])
{
throw new Exception();
}
}
}
}
interval2 = DateTime.Now.Ticks - startTick;
}
Console.WriteLine("Ticks: safe: {0} vs unsafe: {1}", interval, interval2);
}
// 立即释放所有非托管数组占用的内存，任何之前创建的UnmanagedBase数组都不再可用了。
UnmanagedArray <int> .FreeAll();
}
protected override void DoInitialize()
{
skybox_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(skybox_prog, ShaderType.VertexShader, skybox_shader_vs);
ShaderHelper.vglAttachShaderSource(skybox_prog, ShaderType.FragmentShader, skybox_shader_fs);
GL.LinkProgram(skybox_prog);
object_prog = GL.CreateProgram();
ShaderHelper.vglAttachShaderSource(object_prog, ShaderType.VertexShader, object_shader_vs);
ShaderHelper.vglAttachShaderSource(object_prog, ShaderType.FragmentShader, object_shader_fs);
GL.LinkProgram(object_prog);
GL.GenBuffers(1, cube_vbo);
GL.BindBuffer(BufferTarget.ArrayBuffer, cube_vbo[0]);
var cube_vertices = new UnmanagedArray<vec3>(8);
cube_vertices[0] = new vec3(-1.0f, -1.0f, -1.0f);
cube_vertices[1] = new vec3(-1.0f, -1.0f, 1.0f);
cube_vertices[2] = new vec3(-1.0f, 1.0f, -1.0f);
cube_vertices[3] = new vec3(-1.0f, 1.0f, 1.0f);
cube_vertices[4] = new vec3(1.0f, -1.0f, -1.0f);
cube_vertices[5] = new vec3(1.0f, -1.0f, 1.0f);
cube_vertices[6] = new vec3(1.0f, 1.0f, -1.0f);
cube_vertices[7] = new vec3(1.0f, 1.0f, 1.0f);
var cube_indices = new UnmanagedArray<ushort>(16);
// First strip
cube_indices[0] = 0;
cube_indices[1] = 1;
cube_indices[2] = 2;
cube_indices[3] = 3;
cube_indices[4] = 6;
cube_indices[5] = 7;
cube_indices[6] = 4;
cube_indices[7] = 5;
// Second strip
cube_indices[8] = 2;
cube_indices[9] = 6;
cube_indices[10] = 0;
cube_indices[11] = 4;
cube_indices[12] = 1;
cube_indices[13] = 5;
cube_indices[14] = 3;
cube_indices[15] = 7;
GL.BufferData(BufferTarget.ArrayBuffer, cube_vertices, BufferUsage.StaticDraw);
cube_vertices.Dispose();
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
GL.VertexAttribPointer(0, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(0);
GL.GenBuffers(1, cube_element_buffer);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, cube_element_buffer[0]);
GL.BufferData(BufferTarget.ElementArrayBuffer, cube_indices, BufferUsage.StaticDraw);
cube_indices.Dispose();
skybox_rotate_loc = GL.GetUniformLocation(skybox_prog, "tc_rotate");
object_mat_mvp_loc = GL.GetUniformLocation(object_prog, "mat_mvp");
object_mat_mv_loc = GL.GetUniformLocation(object_prog, "mat_mv");
skyboxTexLocation = GL.GetUniformLocation(skybox_prog, "tex");
objectTexLocation = GL.GetUniformLocation(object_prog, "tex");
//tex = new Texture2D();
//System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(@"media\TantolundenCube.png");
//tex.Initialize(bmp);
vglImageData data = new vglImageData();
tex = vgl.vglLoadTexture(@"media\TantolundenCube.dds", 0, ref data);
uint e = GL.GetError();
vgl.vglUnloadImage(ref data);
vboObject.LoadFromVBM(@"media\unit_torus.vbm", 0, 1, 2);
}
private void scientificVisual3DControl_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == 'r')
{
// 随机显示某些hexahedron
foreach (var item in this.scientificVisual3DControl.ModelContainer.Children)
{
{
HexahedronGridderElement element = item as HexahedronGridderElement;
if (element != null)
{
YieldingGeometryModel.Builder.HexahedronGridderElementHelper.RandomVisibility(element, this.scientificVisual3DControl.OpenGL, 0.2);
}
}
{
PointSpriteGridderElement element = item as PointSpriteGridderElement;
if (element != null)
{
YieldingGeometryModel.Builder.PointSpriteGridderElementHelper.RandomVisibility(element, this.scientificVisual3DControl.OpenGL, 0.2);
}
}
}
this.scientificVisual3DControl.Invalidate();
}
if (e.KeyChar == 'c')
{
OpenGL gl = this.scientificVisual3DControl.OpenGL;
List <HexahedronGridderElement> elements = this.scientificVisual3DControl.ModelContainer.Traverse <HexahedronGridderElement>().ToList <HexahedronGridderElement>();
if (elements.Count > 0)
{
HexahedronGridderElement gridder = elements[0];
HexahedronGridderSource source = gridder.Source;
UnmanagedArray <float> visibles = HexahedronGridderHelper.GridVisibleFromActive(source);
//随机生成不完整网格的属性。
int propCount = source.DimenSize / 2;
if (propCount <= 0)
{
return;
}
int minValue = 5000;
int maxValue = 10000;
int[] gridIndexes;
float[] gridValues;
HexahedronGridderHelper.RandomValue(propCount, minValue, maxValue, out gridIndexes, out gridValues);
float step = (maxValue - minValue) / 10.0f;
this.scientificVisual3DControl.SetColorIndicator(minValue, maxValue, step);
ColorF[] colors = new ColorF[propCount];
for (int i = 0; i < colors.Length; i++)
{
colors[i] = (ColorF)this.scientificVisual3DControl.MapToColor(gridValues[i]);
}
UnmanagedArray <ColorF> colorArray = HexahedronGridderHelper.FromColors(source, gridIndexes, colors, visibles);
gridder.UpdateColorBuffer(gl, colorArray, visibles);
colorArray.Dispose();
visibles.Dispose();
this.scientificVisual3DControl.Invalidate();
}
}
}
public static void CtorUnmanagedReadOnlySpanNUIntTest()
{
using var array = new UnmanagedArray <int>(3);
array[0] = 1;
array[1] = 2;
array[2] = 3;
using (var valueList = new UnmanagedValueList <int>(array.AsSpan()))
{
Assert.That(() => valueList,
Has.Property("Capacity").EqualTo((nuint)3)
.And.Count.EqualTo((nuint)3)
);
}
using (var valueList = new UnmanagedValueList <int>(array.AsSpan(), 2))
{
Assert.That(() => valueList,
Has.Property("Capacity").EqualTo((nuint)3)
.And.Count.EqualTo((nuint)3)
);
}
Assert.That(() => new UnmanagedValueList <int>(array.AsSpan(), 3),
Throws.InstanceOf <ArgumentOutOfRangeException>()
.And.Property("ActualValue").EqualTo((nuint)3)
.And.Property("ParamName").EqualTo("alignment")
);
using (var valueList = new UnmanagedValueList <int>(UnmanagedArray <int> .Empty.AsSpan()))
{
Assert.That(() => valueList,
Has.Property("Capacity").EqualTo((nuint)0)
.And.Count.EqualTo((nuint)0)
);
}
using (var valueList = new UnmanagedValueList <int>(UnmanagedArray <int> .Empty.AsSpan(), 2))
{
Assert.That(() => valueList,
Has.Property("Capacity").EqualTo((nuint)0)
.And.Count.EqualTo((nuint)0)
);
}
Assert.That(() => new UnmanagedValueList <int>(UnmanagedArray <int> .Empty.AsSpan(), 3),
Throws.InstanceOf <ArgumentOutOfRangeException>()
.And.Property("ActualValue").EqualTo((nuint)3)
.And.Property("ParamName").EqualTo("alignment")
);
using (var valueList = new UnmanagedValueList <int>(new UnmanagedArray <int>().AsSpan()))
{
Assert.That(() => valueList,
Has.Property("Capacity").EqualTo((nuint)0)
.And.Count.EqualTo((nuint)0)
);
}
using (var valueList = new UnmanagedValueList <int>(new UnmanagedArray <int>().AsSpan(), 2))
{
Assert.That(() => valueList,
Has.Property("Capacity").EqualTo((nuint)0)
.And.Count.EqualTo((nuint)0)
);
}
Assert.That(() => new UnmanagedValueList <int>(new UnmanagedArray <int>().AsSpan(), 3),
Throws.InstanceOf <ArgumentOutOfRangeException>()
.And.Property("ActualValue").EqualTo((nuint)3)
.And.Property("ParamName").EqualTo("alignment")
);
}
private void InitVAO()
{
int size = this.size;
this.vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// prepare positions
{
var positionArray = new UnmanagedArray<vec3>(size * size * size * 14);
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
for (int cubeIndex = 0; cubeIndex < 14; cubeIndex++)
{
positionArray[index++] = unitCubePos[cubeIndex]
+ new vec3((i - size / 2) * unitSpace, (j - size / 2) * unitSpace, (k - size / 2) * unitSpace);
}
}
}
}
uint in_PositionLocation = shaderProgram.GetAttributeLocation(strin_Position);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_PositionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_PositionLocation);
positionArray.Dispose();
}
// prepare colors
{
var colorArray = new UnmanagedArray<vec3>(size * size * size * 14);
Random random = new Random();
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
//vec3 color = new vec3((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble());
for (int cubeIndex = 0; cubeIndex < 14; cubeIndex++)
{
vec3 color = new vec3((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble());
colorArray[index++] = color;
}
}
}
}
uint in_ColorLocation = shaderProgram.GetAttributeLocation(strin_Color);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_ColorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_ColorLocation);
colorArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
// prepare firsts and counts
{
// todo: rename 'size'
this.firsts = new int[size * size * size];
for (int i = 0; i < this.firsts.Length; i++)
{
this.firsts[i] = i * 14;
}
this.counts = new int[size * size * size];
for (int i = 0; i < this.counts.Length; i++)
{
this.counts[i] = 14;
}
}
}
public DebugView(UnmanagedArray <T> array)
{
_array = array;
}
private void InitVAO()
{
int size = this.size;
this.vao = new uint[1];
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// prepare positions
{
var positionArray = new UnmanagedArray <vec3>(size * size * size * 8);
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
for (int cubeIndex = 0; cubeIndex < 8; cubeIndex++)
{
positionArray[index++] = unitCubePos[cubeIndex]
+ new vec3((i - size / 2) * unitSpace, (j - size / 2) * unitSpace, (k - size / 2) * unitSpace);
}
}
}
}
uint in_PositionLocation = shaderProgram.GetAttributeLocation(strin_Position);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_PositionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_PositionLocation);
positionArray.Dispose();
}
// prepare colors
{
var colorArray = new UnmanagedArray <vec3>(size * size * size * 8);
Random random = new Random();
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
//vec3 color = new vec3((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble());
for (int cubeIndex = 0; cubeIndex < 8; cubeIndex++)
{
vec3 color = new vec3((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble());
colorArray[index++] = color;
}
}
}
}
uint in_ColorLocation = shaderProgram.GetAttributeLocation(strin_Color);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_ColorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_ColorLocation);
colorArray.Dispose();
}
// prepare index
{
var indexArray = new UnmanagedArray <uint>(size * size * size * (14 + 1));
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
for (int cubeIndex = 0; cubeIndex < 14; cubeIndex++)
{
long posIndex = unitCubeIndex[cubeIndex] + (i * size * size + j * size + k) * 8;
indexArray[index++] = (uint)posIndex;
}
indexArray[index++] = uint.MaxValue;
}
}
}
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ElementArrayBuffer, indexArray, BufferUsage.StaticDraw);
indexArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
private void InitVAO(string value)
{
if (value == null) { value = string.Empty; }
this.mode = DrawMode.Quads;
this.vertexCount = 4 * value.Length;
// Create a vertex buffer for the vertex data.
UnmanagedArray<vec3> in_Position = new UnmanagedArray<vec3>(this.vertexCount);
UnmanagedArray<vec2> in_TexCoord = new UnmanagedArray<vec2>(this.vertexCount);
Bitmap bigBitmap = this.ttfTexture.BigBitmap;
// step 1: set width for each glyph
vec3[] tmpPositions = new vec3[this.vertexCount];
float totalLength = 0;
for (int i = 0; i < value.Length; i++)
{
char c = value[i];
CharacterInfo cInfo;
if (this.ttfTexture.CharInfoDict.TryGetValue(c, out cInfo))
{
float glyphWidth = (float)cInfo.width / (float)this.ttfTexture.FontHeight;
if (i == 0)
{
tmpPositions[i * 4 + 0] = new vec3(0, 0, 0);
tmpPositions[i * 4 + 1] = new vec3(glyphWidth, 0, 0);
tmpPositions[i * 4 + 2] = new vec3(glyphWidth, 1, 0);
tmpPositions[i * 4 + 3] = new vec3(0, 1, 0);
}
else
{
tmpPositions[i * 4 + 0] = tmpPositions[i * 4 + 0 - 4 + 1];
tmpPositions[i * 4 + 1] = tmpPositions[i * 4 + 0] + new vec3(glyphWidth, 0, 0);
tmpPositions[i * 4 + 3] = tmpPositions[i * 4 + 3 - 4 - 1];
tmpPositions[i * 4 + 2] = tmpPositions[i * 4 + 3] + new vec3(glyphWidth, 0, 0);
}
totalLength += glyphWidth;
}
//else
//{ throw new Exception(string.Format("Not support for display the char [{0}]", c)); }
}
for (int i = 0; i < value.Length; i++)
{
char c = value[i];
CharacterInfo cInfo;
float x1 = 0;
float x2 = 1;
float y1 = 0;
float y2 = 1;
if (this.ttfTexture.CharInfoDict.TryGetValue(c, out cInfo))
{
x1 = (float)cInfo.xoffset / (float)bigBitmap.Width;
x2 = (float)(cInfo.xoffset + cInfo.width) / (float)bigBitmap.Width;
y1 = (float)cInfo.yoffset / (float)bigBitmap.Height;
y2 = (float)(cInfo.yoffset + this.ttfTexture.FontHeight) / (float)bigBitmap.Height;
}
//else
//{ throw new Exception(string.Format("Not support for display the char [{0}]", c)); }
in_Position[i * 4 + 0] = tmpPositions[i * 4 + 0] - new vec3(totalLength / 2, 0, 0);
in_Position[i * 4 + 1] = tmpPositions[i * 4 + 1] - new vec3(totalLength / 2, 0, 0);
in_Position[i * 4 + 2] = tmpPositions[i * 4 + 2] - new vec3(totalLength / 2, 0, 0);
in_Position[i * 4 + 3] = tmpPositions[i * 4 + 3] - new vec3(totalLength / 2, 0, 0);
//in_TexCoord[i * 4 + 0] = new vec2(x1, y1);
//in_TexCoord[i * 4 + 1] = new vec2(x2, y1);
//in_TexCoord[i * 4 + 2] = new vec2(x2, y2);
//in_TexCoord[i * 4 + 3] = new vec2(x1, y2);
in_TexCoord[i * 4 + 0] = new vec2(x1, y2);
in_TexCoord[i * 4 + 1] = new vec2(x2, y2);
in_TexCoord[i * 4 + 2] = new vec2(x2, y1);
in_TexCoord[i * 4 + 3] = new vec2(x1, y1);
}
if (vao[0] != 0)
{ GL.DeleteBuffers(1, vao); }
if (vbo[0] != 0)
{ GL.DeleteBuffers(vbo.Length, vbo); }
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
GL.GenBuffers(2, vbo);
uint in_PositionLocation = shaderProgram.GetAttributeLocation(strin_Position);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo[0]);
GL.BufferData(BufferTarget.ArrayBuffer, in_Position, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_PositionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_PositionLocation);
uint in_TexCoordLocation = shaderProgram.GetAttributeLocation(strin_TexCoord);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo[1]);
GL.BufferData(BufferTarget.ArrayBuffer, in_TexCoord, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_TexCoordLocation, 2, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_TexCoordLocation);
GL.BindVertexArray(0);
in_Position.Dispose();
in_TexCoord.Dispose();
}
protected void InitializeVAO()
{
this.axisPrimitiveMode = DrawMode.QuadStrip;// PrimitiveModes.QuadStrip;
this.axisVertexCount = faceCount * 2;
this.vao = new uint[4];
GL.GenVertexArrays(4, vao);
vec3[] colors = new vec3[] { new vec3(1, 0, 0), new vec3(0, 1, 0), new vec3(0, 0, 1) };
// 计算三个坐标轴
for (int axisIndex = 0; axisIndex < 3; axisIndex++)
{
GL.BindVertexArray(vao[axisIndex]);
// Create a vertex buffer for the vertex data.
using (var positionArray = new UnmanagedArray <vec3>(faceCount * 2))
{
for (int i = 0; i < faceCount * 2; i++)
{
int face = i / 2;
float[] components = new float[] {
i % 2 == 1 ? 0 : this.axisLength,
(float)(this.radius * Math.Cos(face * (Math.PI * 2) / faceCount)),
(float)(this.radius * Math.Sin(face * (Math.PI * 2) / faceCount))
};
positionArray[i] = new vec3(
components[(0 + axisIndex) % 3], components[(2 + axisIndex) % 3], components[(4 + axisIndex) % 3]);
}
uint positionLocation = shaderProgram.GetAttributeLocation(strin_Position);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(positionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(positionLocation);
}
// Now do the same for the colour data.
using (var colorArray = new UnmanagedArray <vec3>(faceCount * 2))
{
for (int i = 0; i < colorArray.Length; i++)
{
colorArray[i] = colors[axisIndex];
}
uint colorLocation = shaderProgram.GetAttributeLocation(strin_Color);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(colorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(colorLocation);
}
using (var cylinderIndex = new UnmanagedArray <uint>(faceCount * 2 + 2))
{
for (int i = 0; i < cylinderIndex.Length - 2; i++)
{
cylinderIndex[i] = (uint)i;
}
cylinderIndex[cylinderIndex.Length - 2] = 0;
cylinderIndex[cylinderIndex.Length - 1] = 1;
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ElementArrayBuffer, cylinderIndex, BufferUsage.StaticDraw);
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
// 计算XZ平面
{
this.planPrimitveMode = DrawMode.LineLoop;
this.planVertexCount = 4;
GL.BindVertexArray(vao[3]);
// Create a vertex buffer for the vertex data.
using (var plan = new UnmanagedArray <vec3>(4))
{
float length = this.axisLength;
plan[0] = new vec3(-length, 0, -length);
plan[1] = new vec3(-length, 0, length);
plan[2] = new vec3(length, 0, length);
plan[3] = new vec3(length, 0, -length);
uint positionLocation = shaderProgram.GetAttributeLocation(strin_Position);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, plan, BufferUsage.StaticDraw);
GL.VertexAttribPointer(positionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(positionLocation);
}
// Now do the same for the colour data.
using (var colorArray = new UnmanagedArray <vec3>(4))
{
for (int i = 0; i < colorArray.Length; i++)
{
colorArray[i] = this.planColor;
}
uint colorLocation = shaderProgram.GetAttributeLocation(strin_Color);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(colorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(colorLocation);
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
}
internal Enumerator(UnmanagedArray <T> array)
{
_array = array;
_index = nuint.MaxValue;
}
private void InitVAO()
{
int size = this.size;
GL.GenVertexArrays(1, vao);
GL.BindVertexArray(vao[0]);
// prepare positions
{
var positionArray = new UnmanagedArray<vec3>(size * size * size * 8);
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
for (int cubeIndex = 0; cubeIndex < 8; cubeIndex++)
{
positionArray[index++] = unitCubePos[cubeIndex]
+ new vec3((i - size / 2) * unitSpace, (j - size / 2) * unitSpace, (k - size / 2) * unitSpace);
}
}
}
}
uint in_PositionLocation = shaderProgram.GetAttributeLocation(strin_Position);
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ArrayBuffer, positionArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_PositionLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_PositionLocation);
positionArray.Dispose();
}
// prepare colors
{
var colorArray = new UnmanagedArray<vec3>(size * size * size * 8);
Random random = new Random();
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
//vec3 color = new vec3((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble());
for (int cubeIndex = 0; cubeIndex < 8; cubeIndex++)
{
vec3 color = new vec3((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble());
colorArray[index++] = color;
}
}
}
}
uint in_ColorLocation = shaderProgram.GetAttributeLocation(strin_Color);
GL.GenBuffers(1, this.colorBuffer);
GL.BindBuffer(BufferTarget.ArrayBuffer, this.colorBuffer[0]);
GL.BufferData(BufferTarget.ArrayBuffer, colorArray, BufferUsage.StaticDraw);
GL.VertexAttribPointer(in_ColorLocation, 3, GL.GL_FLOAT, false, 0, IntPtr.Zero);
GL.EnableVertexAttribArray(in_ColorLocation);
colorArray.Dispose();
}
// prepare index
{
var indexArray = new UnmanagedArray<uint>(size * size * size * (14 + 1));
int index = 0;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
for (int k = 0; k < size; k++)
{
for (int cubeIndex = 0; cubeIndex < 14; cubeIndex++)
{
long posIndex = unitCubeIndex[cubeIndex] + (i * size * size + j * size + k) * 8;
indexArray[index++] = (uint)posIndex;
}
indexArray[index++] = uint.MaxValue;
}
}
}
uint[] ids = new uint[1];
GL.GenBuffers(1, ids);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, ids[0]);
GL.BufferData(BufferTarget.ElementArrayBuffer, indexArray, BufferUsage.StaticDraw);
indexArray.Dispose();
}
// Unbind the vertex array, we've finished specifying data for it.
GL.BindVertexArray(0);
}
// Call this only after the open gl is initialized.
public bool ReadFile(string lpDataFile_i, int nWidth_i, int nHeight_i, int nSlices_i)
{
FileStream file = new FileStream(lpDataFile_i, FileMode.Open, FileAccess.Read);
// File has only image data. The dimension of the data should be known.
m_uImageCount = nSlices_i;
m_uImageWidth = nWidth_i;
m_uImageHeight = nHeight_i;
// Holds the luminance buffer
//byte[] chBuffer = new byte[m_uImageWidth * m_uImageHeight * m_uImageCount];
//UnmanagedArray<byte> chBuffer = new UnmanagedArray<byte>(m_uImageWidth * m_uImageHeight * m_uImageCount);
byte[] chBuffer = new byte[m_uImageWidth * m_uImageHeight * m_uImageCount];
// Holds the RGBA buffer
UnmanagedArray <byte> pRGBABuffer = new UnmanagedArray <byte>(m_uImageWidth * m_uImageHeight * m_uImageCount * 4);
file.Read(chBuffer, 0, chBuffer.Length);
// Convert the data to RGBA data.
// Here we are simply putting the same value to R, G, B and A channels.
// Usually for raw data, the alpha value will be constructed by a threshold value given by the user
unsafe
{
byte *rgbBuffer = (byte *)pRGBABuffer.FirstElement();
for (int nIndx = 0; nIndx < m_uImageWidth * m_uImageHeight * m_uImageCount; ++nIndx)
{
byte value = chBuffer[nIndx];
//if (value < 20)
//{ value = 0; }
rgbBuffer[nIndx * 4] = value;
rgbBuffer[nIndx * 4 + 1] = value;
rgbBuffer[nIndx * 4 + 2] = value;
rgbBuffer[nIndx * 4 + 3] = value;
}
}
// If this function is getting called again for another data file.
// Deleting and creating texture is not a good idea,
// we can use the glTexSubImage3D for better performance for such scenario.
// I am not using that now :-)
if (0 != m_nTexId[0])
{
GL.DeleteTextures(1, m_nTexId);
}
GL.GenTextures(1, m_nTexId);
GL.BindTexture(GL.GL_TEXTURE_3D, m_nTexId[0]);
GL.TexEnvi(GL.GL_TEXTURE_ENV, GL.GL_TEXTURE_ENV_MODE, (int)GL.GL_REPLACE);
GL.TexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_WRAP_S, (int)GL.GL_CLAMP_TO_BORDER);
GL.TexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_WRAP_T, (int)GL.GL_CLAMP_TO_BORDER);
GL.TexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_WRAP_R, (int)GL.GL_CLAMP_TO_BORDER);
GL.TexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_MAG_FILTER, (int)GL.GL_LINEAR);
GL.TexParameteri(GL.GL_TEXTURE_3D, GL.GL_TEXTURE_MIN_FILTER, (int)GL.GL_LINEAR);
//uint target, int level, int internalformat, int width, int height, int depth, int border, uint format, uint type, IntPtr pixels)
GL.TexImage3D(GL.GL_TEXTURE_3D, 0, (int)GL.GL_RGBA, m_uImageWidth, m_uImageHeight, m_uImageCount, 0,
GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, pRGBABuffer.Header);
GL.BindTexture(GL.GL_TEXTURE_3D, 0);
return(true);
}
public static void vglLoadDDS(string filename, ref vglImageData image)
{
System.IO.FileStream f = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.Read);
System.IO.BinaryReader br = new System.IO.BinaryReader(f);
//DDS_FILE_HEADER file_header = { 0, };
DDS_FILE_HEADER file_header = new DDS_FILE_HEADER();
//fread(&file_header, sizeof(file_header.magic) + sizeof(file_header.std_header), 1, f);
file_header = br.ReadStruct<DDS_FILE_HEADER>();
file_header.dxt10_header.format = 0;
file_header.dxt10_header.array_size = 0;
f.Position = Marshal.SizeOf(file_header.magic) + Marshal.SizeOf(file_header.std_header);
if (file_header.magic != DDSSignal.DDS_MAGIC)
{
goto done_close_file;
}
if (file_header.std_header.ddspf.dwFourCC == DDSSignal.DDS_FOURCC_DX10)
{
//fread(&file_header.dxt10_header, sizeof(file_header.dxt10_header), 1, f);
f.Position = Marshal.SizeOf(file_header.magic) + Marshal.SizeOf(file_header.std_header);
file_header.dxt10_header = br.ReadStruct<DDS_HEADER_DXT10>();
}
if (!vgl_DDSHeaderToImageDataHeader(ref file_header, ref image))
goto done_close_file;
image.target = vgl_GetTargetFromDDSHeader(ref file_header);
if (image.target == GL.GL_NONE)
goto done_close_file;
//int current_pos = ftell(f);
long current_pos = f.Position;
long file_size = f.Length;
image.totalDataSize = (int)(file_size - current_pos);
var data = new UnmanagedArray<byte>(image.totalDataSize);
if (image.mip == null) { image.mip = new vglImageMipData[vermilion.MAX_TEXTURE_MIPS]; }
image.mip[0].data = data.Header;
//image.mip[0].data = new byte[image.totalDataSize];
//fread(image.mip[0].data, file_size - current_pos, 1, f);
for (int i = 0; i < image.totalDataSize; i++)
{
data[i] = br.ReadByte();
}
int level;
IntPtr ptr = image.mip[0].data;
uint width = file_header.std_header.width;
uint height = file_header.std_header.height;
uint depth = file_header.std_header.depth;
image.sliceStride = 0;
if (image.mipLevels == 0)
{
image.mipLevels = 1;
}
for (level = 0; level < image.mipLevels; ++level)
{
image.mip[level].data = ptr;
image.mip[level].width = (int)width;
image.mip[level].height = (int)height;
image.mip[level].depth = (int)depth;
image.mip[level].mipStride = (int)(vgl_GetDDSStride(ref file_header, (int)width) * height);
image.sliceStride += image.mip[level].mipStride;
ptr += image.mip[level].mipStride;
width >>= 1;
height >>= 1;
depth >>= 1;
}
done_close_file:
f.Close();
}
public static void CopyToUnmanagedSpanTest()
{
var array = new UnmanagedArray <int>(3);
array[0] = 1;
array[1] = 2;
array[2] = 3;
using (var valueList = new UnmanagedValueList <int>(array, takeOwnership: true))
{
using (var destination = new UnmanagedArray <int>(3))
{
valueList.CopyTo(destination);
Assert.That(() => destination[0],
Is.EqualTo(1)
);
Assert.That(() => destination[1],
Is.EqualTo(2)
);
Assert.That(() => destination[2],
Is.EqualTo(3)
);
}
using (var destination = new UnmanagedArray <int>(6))
{
valueList.CopyTo(destination);
Assert.That(() => destination[0],
Is.EqualTo(1)
);
Assert.That(() => destination[1],
Is.EqualTo(2)
);
Assert.That(() => destination[2],
Is.EqualTo(3)
);
Assert.That(() => destination[3],
Is.EqualTo(0)
);
Assert.That(() => destination[4],
Is.EqualTo(0)
);
Assert.That(() => destination[5],
Is.EqualTo(0)
);
}
Assert.That(() => valueList.CopyTo(UnmanagedArray <int> .Empty),
Throws.InstanceOf <ArgumentOutOfRangeException>()
.And.Property("ActualValue").EqualTo((nuint)3)
.And.Property("ParamName").EqualTo("Count")
);
}
using (var valueList = new UnmanagedValueList <int>())
{
Assert.That(() => valueList.CopyTo(UnmanagedArray <int> .Empty),
Throws.Nothing
);
}
}