public void TestUniform2i()
{
if (!HasVersion(2, 0) && !HasEsVersion(2, 0) && !IsGlExtensionSupported("GL_ARB_shader_objects"))
{
Assert.Inconclusive("required features not implemented");
}
using (Device device = new Device())
using (new GLContext(device))
{
uint program = CreateProgramUniform2i();
try {
Vertex2i uniformStruct;
int[] uniformValue;
int uniformLoc = Gl.GetUniformLocation(program, "uVec");
if (uniformLoc < 0)
{
throw new InvalidOperationException("no uniform variable");
}
// glGetUniformiv
uniformValue = Array2(1);
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(0), uniformValue);
// glGetUniformiv (ref)
uniformStruct = new Vertex2i(1);
Gl.GetUniformi(program, uniformLoc, ref uniformStruct);
Assert.AreEqual(Vertex2i.Zero, uniformStruct);
// glUniform2i
uniformValue = Array2(0);
Gl.Uniform2(uniformLoc, Array2(1));
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(1), uniformValue);
// glUniform2iv
uniformValue = Array2(0);
Gl.Uniform2(uniformLoc, Array2(9));
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(9), uniformValue);
// glUniform2iv (ref)
uniformValue = Array2(0);
uniformStruct = new Vertex2i(5);
Gl.Uniform2i(uniformLoc, 1, ref uniformStruct);
Gl.GetUniform(program, uniformLoc, uniformValue);
CollectionAssert.AreEqual(Array2(5), uniformValue);
} finally {
Gl.DeleteProgram(program);
}
}
}
/// <summary>
/// Extract all information required from the specified dataset.
/// </summary>
/// <param name="dataset">
/// The <see cref="Dataset"/> from which the information must be extracted.
/// </param>
protected void ExtractBlockInformation(Dataset dataset)
{
if (dataset == null)
{
throw new ArgumentNullException("dataset");
}
// Block size
using (Band datasetBand = dataset.GetRasterBand(1))
{
datasetBand.GetBlockSize(out _BlockSize.x, out _BlockSize.y);
// Do not expose "rows": find a suitable block size
if (_BlockSize.x == 1 || _BlockSize.y == 1)
{
const int DefaultBlockSize = 2048;
int blockSize = Math.Min(DefaultBlockSize, GraphicsContext.CurrentCaps.Limits.MaxTexture2DSize);
_BlockSize = new Vertex2i(blockSize, blockSize);
}
_BlockSize.x = Math.Min(_BlockSize.x, GraphicsContext.CurrentCaps.Limits.MaxTexture2DSize);
_BlockSize.y = Math.Min(_BlockSize.y, GraphicsContext.CurrentCaps.Limits.MaxTexture2DSize);
}
// Cache blocks definitions
for (int x = 0; x < dataset.RasterXSize; x += _BlockSize.x)
{
for (int y = 0; y < dataset.RasterYSize; y += _BlockSize.y)
{
int wBlock = _BlockSize.x, hBlock = _BlockSize.y;
if (x + wBlock > dataset.RasterXSize)
{
wBlock = dataset.RasterXSize - x;
}
if (y + hBlock > dataset.RasterYSize)
{
hBlock = dataset.RasterYSize - y;
}
_Blocks.Add(new GeoTerrainDataset(this, dataset, new Rectangle(x, y, wBlock, hBlock)));
}
}
Debug.Assert(_Blocks.Count > 0);
}
void IShaderUniformContainer.SetUniform(GraphicsContext ctx, string uniformName, Vertex2i v)
{
throw new NotImplementedException();
}
/// <summary> /// Fills a triangular area with the currently set color /// <para>Clockwise winding assumed for all verticies</para> /// </summary> /// <param name="v1">First vertex</param> /// <param name="v2">Second vertex</param> /// <param name="v3">Third vertex</param> public abstract void Fill_Tri(Vertex2i v1, Vertex2i v2, Vertex2i v3);
/// <summary> /// Fills a rectangular area with the currently set color /// <para>Clockwise winding assumed for all verticies</para> /// </summary> /// <param name="LineThickness">Thickness of the line in pixels</param> /// <param name="v1">Top-Left vertex</param> /// <param name="v2">Top-Right vertex</param> /// <param name="v3">Bottom-Right vertex</param> /// <param name="v4">Bottom-Left vertex</param> public abstract void Fill_Rect(Vertex2i v1, Vertex2i v2, Vertex2i v3, Vertex2i v4);
/// <summary> /// Outlines a triangular area with the currently set color /// <para>Clockwise winding assumed for all verticies</para> /// </summary> /// <param name="LineThickness">Thickness of the line in pixels</param> /// <param name="v1">First vertex</param> /// <param name="v2">Second vertex</param> /// <param name="v3">Third vertex</param> public abstract void Draw_Tri(int LineThickness, Vertex2i v1, Vertex2i v2, Vertex2i v3);
/// <summary> /// Outlines a rectangular area with the currently set color /// <para>Clockwise winding assumed for all verticies</para> /// </summary> /// <param name="LineThickness">Thickness of the line in pixels</param> /// <param name="v1">Top-Left vertex</param> /// <param name="v2">Top-Right vertex</param> /// <param name="v3">Bottom-Right vertex</param> /// <param name="v4">Bottom-Left vertex</param> public abstract void Draw_Rect(int LineThickness, Vertex2i v1, Vertex2i v2, Vertex2i v3, Vertex2i v4);
/// <summary> /// Draws a line between two given points /// </summary> /// <param name="LineThickness">Thickness of the line in pixels</param> /// <param name="v1">First vertex</param> /// <param name="v2">Second vertex</param> public abstract void Draw_Line(int LineThickness, Vertex2i v1, Vertex2i v2);
/// <summary>
/// Set uniform state variable (ivec2 variable or bvec2 variable).
/// </summary>
/// <param name="ctx">
/// A <see cref="GraphicsContext"/> used for operations.
/// </param>
/// <param name="uniformName">
/// A <see cref="String"/> that specify the variable name in the shader source.
/// </param>
/// <param name="v">
/// A <see cref="Vertex2i"/> holding the uniform variabile data (first component).
/// </param>
public void SetUniform(GraphicsContext ctx, string uniformName, Vertex2i v)
{
SetUniform(ctx, uniformName, v.x, v.y);
}