/// <summary>
/// Reloads the OpenGl Texture from the Surface.
/// </summary>
/// <param name="surface">The surface to load from.</param>
/// <param name="isFlipped">States if the surface should be flipped when moved into the OpenGl Texture.</param>
/// <param name="minifyingFilter">"The openGl filter used for minifying"</param>
/// <param name="magnificationFilter">"The openGl filter used for magnification"</param>
/// <param name="wrapS">The wrap parameter for texture coordinate S</param>
/// <param name="wrapT">The wrap parameter for texture coordinate T</param>
public void Refresh(Surface surface, bool isFlipped, MinifyingOption minifyingFilter, MagnificationOption magnificationFilter, WrapOption wrapS, WrapOption wrapT)
{
if (surface == null)
{
throw new ArgumentNullException("surface");
}
this.surface = surface;
this.Delete();
using (Surface textureSurface = TransformSurface(isFlipped))
{
int[] textures = new int[1];
glGenTextures(1, textures);
this.textureId = textures[0];
this.textureWidth = textureSurface.Width;
this.textureHeight = textureSurface.Height;
this.isFlipped = isFlipped;
this.minifyingFilter = minifyingFilter;
this.magnificationFilter = magnificationFilter;
this.wrapS = wrapS;
this.wrapT = wrapT;
this.widthRatio = (float)surface.Width / textureWidth;
this.heightRatio = (float)surface.Height / textureHeight;
glBindTexture(GL_TEXTURE_2D, textureId);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (int)minifyingFilter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (int)magnificationFilter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, (int)wrapS);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, (int)wrapT);
if (minifyingFilter == MinifyingOption.Linear || minifyingFilter == MinifyingOption.Nearest)
{
glTexImage2D(GL_TEXTURE_2D, 0, textureSurface.BytesPerPixel, textureWidth, textureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, textureSurface.Pixels);
}
else
{
NativeMethods.gluBuild2DMipmaps(GL_TEXTURE_2D, textureSurface.BytesPerPixel, textureWidth, textureHeight, GL_RGBA, GL_UNSIGNED_BYTE, textureSurface.Pixels);
}
needRefresh = false;
needSetOptions = false;
}
}
/// <summary>
/// Creates a new Instance of SurfaceGl.
/// </summary>
/// <param name="surface">The surface to be copied into a OpenGl Texture.</param>
/// <param name="isFlipped">States if the surface should be flipped when copied into a OpenGl Texture.</param>
public SurfaceGl(Surface surface, bool isFlipped)
{
if (surface == null)
{
throw new ArgumentNullException("surface");
}
this.surface = surface;
this.isFlipped = isFlipped;
this.textureId = -1;
this.textureWidth = -1;
this.textureHeight = -1;
this.widthRatio = -1;
this.heightRatio = -1;
this.minifyingFilter = MinifyingOption.Linear;
this.magnificationFilter = MagnificationOption.Linear;
this.wrapS = WrapOption.Repeat;
this.wrapT = WrapOption.Repeat;
}
/// <summary>
/// Reloads the OpenGl Texture from the Surface.
/// </summary>
/// <param name="surface">The surface to load from.</param>
/// <param name="isFlipped">States if the surface should be flipped when moved into the OpenGl Texture.</param>
/// <param name="minifyingFilter">"The openGl filter used for minifying"</param>
/// <param name="magnificationFilter">"The openGl filter used for magnification"</param>
/// <param name="wrapS">The wrap parameter for texture coordinate S</param>
/// <param name="wrapT">The wrap parameter for texture coordinate T</param>
public void Refresh(Surface surface, bool isFlipped, MinifyingOption minifyingFilter, MagnificationOption magnificationFilter, WrapOption wrapS, WrapOption wrapT)
{
if (surface == null) { throw new ArgumentNullException("surface"); }
this.surface = surface;
this.Delete();
using (Surface textureSurface = TransformSurface(isFlipped))
{
int[] textures = new int[1];
glGenTextures(1, textures);
this.textureId = textures[0];
this.textureWidth = textureSurface.Width;
this.textureHeight = textureSurface.Height;
this.isFlipped = isFlipped;
this.minifyingFilter = minifyingFilter;
this.magnificationFilter = magnificationFilter;
this.wrapS = wrapS;
this.wrapT = wrapT;
this.widthRatio = (float)surface.Width / textureWidth;
this.heightRatio = (float)surface.Height / textureHeight;
glBindTexture(GL_TEXTURE_2D, textureId);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (int)minifyingFilter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (int)magnificationFilter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, (int)wrapS);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, (int)wrapT);
if (minifyingFilter == MinifyingOption.Linear || minifyingFilter == MinifyingOption.Nearest)
{
glTexImage2D(GL_TEXTURE_2D, 0, textureSurface.BytesPerPixel, textureWidth, textureHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, textureSurface.Pixels);
}
else
{
NativeMethods.gluBuild2DMipmaps(GL_TEXTURE_2D, textureSurface.BytesPerPixel, textureWidth, textureHeight, GL_RGBA, GL_UNSIGNED_BYTE, textureSurface.Pixels);
}
needRefresh = false;
needSetOptions = false;
}
}
/// <summary>
/// Creates a new Instance of SurfaceGl.
/// </summary>
/// <param name="surface">The surface to be copied into a OpenGl Texture.</param>
/// <param name="isFlipped">States if the surface should be flipped when copied into a OpenGl Texture.</param>
public SurfaceGl(Surface surface, bool isFlipped)
{
if (surface == null)
{
throw new ArgumentNullException("surface");
}
this.surface = surface;
this.isFlipped = isFlipped;
this.textureId = -1;
this.textureWidth = -1;
this.textureHeight = -1;
this.widthRatio = -1;
this.heightRatio = -1;
this.minifyingFilter = MinifyingOption.Linear;
this.magnificationFilter = MagnificationOption.Linear;
this.wrapS = WrapOption.Repeat;
this.wrapT = WrapOption.Repeat;
}
