protected override void WriteTexture(int id, OpenGLTexture texture)
{
var bmp = (BitmapTexture)texture;
var path = System.IO.Path.Combine(ShapeStorePath, "Texture" + id + ".png");
bmp.WritePng(path);
}
public void SetTexture(ITexture texture)
{
//valid?
if (!(texture is OpenGLTexture))
{
throw new Exception("OpenGL: Invalid texture!");
}
p_Texture = texture as OpenGLTexture;
}
public void StartDrawTextMeshToImage(int width, int height)
{
//create quadMesh
if (quadMesh == null)
{
quadMesh = new QuadMesh();
}
//create textures
{
glyphOpenGLTexture = new OpenGLTexture();
glyphOpenGLTexture.LoadImage(new byte[width * height * 4], width, height);
glyphTexture = (uint)glyphOpenGLTexture.GetNativeTextureId();
}
{
textOpenGLTexture = new OpenGLTexture();
textOpenGLTexture.LoadImage(new byte[width * height * 4], width, height);
textTexture = (uint)textOpenGLTexture.GetNativeTextureId();
}
//create frame buffer
GL.GenFramebuffers(2, textMeshFrameBuffers);
this.glyphFrameBuffer = textMeshFrameBuffers[0];
this.textFrameBuffer = textMeshFrameBuffers[1];
//attach textures to framebuffers
GL.BindFramebuffer(GL.GL_FRAMEBUFFER_EXT, this.glyphFrameBuffer);
GL.FramebufferTexture2D(GL.GL_FRAMEBUFFER_EXT, GL.GL_COLOR_ATTACHMENT0_EXT,
GL.GL_TEXTURE_2D, glyphTexture, 0);
if (GL.CheckFramebufferStatus(GL.GL_FRAMEBUFFER_EXT) != GL.GL_FRAMEBUFFER_COMPLETE_EXT)
{
throw new Exception("Framebuffer for glyph is not complete.");
}
GL.BindFramebuffer(GL.GL_FRAMEBUFFER_EXT, this.textFrameBuffer);
GL.FramebufferTexture2D(GL.GL_FRAMEBUFFER_EXT, GL.GL_COLOR_ATTACHMENT0_EXT,
GL.GL_TEXTURE_2D, textTexture, 0);
if (GL.CheckFramebufferStatus(GL.GL_FRAMEBUFFER_EXT) != GL.GL_FRAMEBUFFER_COMPLETE_EXT)
{
throw new Exception("Framebuffer for text is not complete.");
}
}
public ITexture GetTexture(string alias)
{
//generate a hash for the alias so
//we can compare to other textures quickly
int aliasHash = alias.GetHashCode();
lock (p_Mutex) {
//look for the hash
int l = p_Textures.Length;
for (int c = 0; c < l; c++)
{
OpenGLTexture texture = p_Textures[c];
if (texture.HASH == aliasHash)
{
return(texture);
}
}
}
//not found
return(null);
}
public OpenGLTextureBinding(OpenGLTexture texture)
{
_texture = texture;
}
private OpenGLTexture CreateTexture(
GLenum target,
int levelCount
) {
uint handle;
glGenTextures(1, out handle);
OpenGLTexture result = new OpenGLTexture(
handle,
target,
levelCount
);
BindTexture(result);
glTexParameteri(
result.Target,
GLenum.GL_TEXTURE_WRAP_S,
XNAToGL.Wrap[(int) result.WrapS]
);
glTexParameteri(
result.Target,
GLenum.GL_TEXTURE_WRAP_T,
XNAToGL.Wrap[(int) result.WrapT]
);
glTexParameteri(
result.Target,
GLenum.GL_TEXTURE_WRAP_R,
XNAToGL.Wrap[(int) result.WrapR]
);
glTexParameteri(
result.Target,
GLenum.GL_TEXTURE_MAG_FILTER,
XNAToGL.MagFilter[(int) result.Filter]
);
glTexParameteri(
result.Target,
GLenum.GL_TEXTURE_MIN_FILTER,
result.HasMipmaps ?
XNAToGL.MinMipFilter[(int) result.Filter] :
XNAToGL.MinFilter[(int) result.Filter]
);
glTexParameterf(
result.Target,
GLenum.GL_TEXTURE_MAX_ANISOTROPY_EXT,
(result.Filter == TextureFilter.Anisotropic) ? Math.Max(result.Anistropy, 1.0f) : 1.0f
);
glTexParameteri(
result.Target,
GLenum.GL_TEXTURE_BASE_LEVEL,
result.MaxMipmapLevel
);
if (!useES2)
{
glTexParameterf(
result.Target,
GLenum.GL_TEXTURE_LOD_BIAS,
result.LODBias
);
}
return result;
}
public OpenGLTextureView(ref TextureViewDescription description)
: base(description.Target)
{
Target = Util.AssertSubtype <Texture, OpenGLTexture>(description.Target);
}
public OpenGLTexture_JS_Wrapper(OpenGLTexture texToWrap)
{
this._tex = texToWrap;
}
public ITexture AllocateTexture(Bitmap bmp, string alias)
{
Monitor.Enter(p_Mutex);
Size size = bmp.Size;
//has the texture already been defined?
ITexture exist = GetTexture(alias);
if (exist != null)
{
Monitor.Exit(p_Mutex);
return(exist);
}
//create the texture index
int index;
glGenTextures(1, out index);
glBindTexture(TEXTURE_2D, index);
//lock the bitmap so we can access its memory directly
BitmapData bmpData = bmp.LockBits(
new Rectangle(Point.Empty, size),
ImageLockMode.ReadOnly,
PixelFormat.Format32bppArgb);
//copy bitmap data to the GPU
glTexImage2D(
TEXTURE_2D,
0,
RGBA,
size.Width,
size.Height,
0,
BGRA,
UNSIGNED_BYTE,
bmpData.Scan0);
//clean up
bmp.UnlockBits(bmpData);
glTexParameteri(TEXTURE_2D, TEXTURE_MIN_FILTER, LINEAR);
glTexParameteri(TEXTURE_2D, TEXTURE_MAG_FILTER, LINEAR);
glTexParameteri(TEXTURE_2D, TEXTURE_WRAP_S, REPEAT);
glTexParameteri(TEXTURE_2D, TEXTURE_WRAP_T, REPEAT);
//add the texture
OpenGLTexture buffer = new OpenGLTexture {
Width = size.Width,
Height = size.Height,
INDEX = index,
HASH = alias.GetHashCode()
};
Array.Resize(ref p_Textures, p_Textures.Length + 1);
p_Textures[p_Textures.Length - 1] = buffer;
Monitor.Exit(p_Mutex);
return(buffer);
}
private OpenGLTexture CreateTexture(
GLenum target,
int levelCount
)
{
uint handle;
glCreateTextures(target, 1, out handle);
OpenGLTexture result = new OpenGLTexture(
handle,
target,
levelCount
);
return result;
}
public OpenGLTextureBinding(OpenGLTexture texture)
{
BoundTexture = texture;
}