// Set up the texture objects.
static bool arglSetupTextureObjects(ARGL_CONTEXT_SETTINGS contextSettings)
{
int textureWrapMode;
// Delete previous textures, unless this is our first time here.
if (contextSettings.textureObjectsHaveBeenSetup)
{
GL1.ActiveTexture(All1.Texture0);
GL1.BindTexture(All1.Texture2D, 0);
GL1.DeleteTextures(1, ref contextSettings.texture);
contextSettings.textureObjectsHaveBeenSetup = false;
}
GL1.GenTextures(1, out contextSettings.texture);
GL1.ActiveTexture(All1.Texture0);
GL1.BindTexture(All1.Texture2D, contextSettings.texture);
GL1.TexParameterx(All1.Texture2D, All1.TextureMinFilter, (int)All1.Linear);
GL1.TexParameterx(All1.Texture2D, All1.TextureMagFilter, (int)All1.Linear);
// Decide whether we can use GL_CLAMP_TO_EDGE.
//if (arglGLCapabilityCheck(0x0120, (unsigned char *)"GL_SGIS_texture_edge_clamp")) {
textureWrapMode = (int)All1.ClampToEdge;
//} else {
// textureWrapMode = (int)All1.Repeat;
//}
GL1.TexParameterx(All1.Texture2D, All1.TextureWrapS, textureWrapMode);
GL1.TexParameterx(All1.Texture2D, All1.TextureWrapT, textureWrapMode);
contextSettings.textureObjectsHaveBeenSetup = true;
return(true);
}
static bool arglPixelBufferDataUpload(ARGL_CONTEXT_SETTINGS contextSettings, byte[] bufDataPtr)
{
if (contextSettings == null)
{
return(false);
}
if (contextSettings.textureObjectsHaveBeenSetup || contextSettings.textureGeometryHasBeenSetup || contextSettings.pixSize == 0)
{
return(false);
}
GL1.ActiveTexture(All1.Texture0);
GL1.BindTexture(All1.Texture2D, contextSettings.texture);
GL1.PixelStore(All1.UnpackAlignment, (((contextSettings.bufSizeX * contextSettings.pixSize) & 0x3) == 0 ? 4 : 1));
if (contextSettings.bufSizeIsTextureSize)
{
GL1.TexImage2D(All1.Texture2D, 0, (OpenTK.Graphics.ES11.All)contextSettings.pixIntFormat, contextSettings.textureSizeX, contextSettings.textureSizeY, 0, (All1)contextSettings.pixFormat, (All1)contextSettings.pixType, bufDataPtr);
}
else
{
// Request OpenGL allocate memory internally for a power-of-two texture of the appropriate size.
// Then send the NPOT-data as a subimage.
GL1.TexImage2D(All1.Texture2D, 0, (OpenTK.Graphics.ES11.All)contextSettings.pixIntFormat, contextSettings.textureSizeX, contextSettings.textureSizeY, 0, (All1)contextSettings.pixFormat, (All1)contextSettings.pixType, IntPtr.Zero);
GL1.TexSubImage2D(All1.Texture2D, 0, 0, 0, contextSettings.bufSizeX, contextSettings.bufSizeY, (All1)contextSettings.pixFormat, (All1)contextSettings.pixType, bufDataPtr);
}
contextSettings.textureDataReady = true;
return(true);
}
public void DrawInRect(Rectangle rect)
{
float[] coordinates = { 0, _maxT, _maxS, _maxT, 0, 0, _maxS, 0 };
float[] vertices = { rect.Left, rect.Top, 0.0f, rect.Right, rect.Top, 0.0f, rect.Left, rect.Bottom, 0.0f, rect.Right, rect.Bottom, 0.0f };
GL11.BindTexture(ALL11.Texture2D, _name);
GL11.VertexPointer(3, ALL11.Float, 0, vertices);
GL11.TexCoordPointer(2, ALL11.Float, 0, coordinates);
GL11.DrawArrays(ALL11.TriangleStrip, 0, 4);
}
public void DrawAtPoint(Vector2 point)
{
float[] coordinates = { 0, _maxT, _maxS, _maxT, 0, 0, _maxS, 0 };
float width = (float)_width * _maxS;
float height = (float)_height * _maxT;
float[] vertices = { -width / 2.0f + point.X, -height / 2.0f + point.Y, 0.0f,
width / 2.0f + point.X, -height / 2.0f + point.Y, 0.0f,
-width / 2.0f + point.X, height / 2.0f + point.Y, 0.0f,
width / 2.0f + point.X, height / 2.0f + point.Y, 0.0f };
GL11.BindTexture(ALL11.Texture2D, _name);
GL11.VertexPointer(3, ALL11.Float, 0, vertices);
GL11.TexCoordPointer(2, ALL11.Float, 0, coordinates);
GL11.DrawArrays(ALL11.TriangleStrip, 0, 4);
}
private void allocateOpenGLTexture()
{
// modeled after this
// http://steinsoft.net/index.php?site=Programming/Code%20Snippets/OpenGL/no9
// Allocate the space needed for the texture
GL11.BindTexture(All11.Texture2D, this.textureId);
// it seems like we do not need to allocate any buffer space
//byte[] data = new byte[_width * _height * 4];
// Use offset instead of pointer to indictate that we want to use data copied from a PBO
//GL.TexImage2D (TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, _width, _height, 0, PixelFormat.Rgba, PixelType.UnsignedByte, data);
GL11.TexImage2D(All11.Texture2D, 0, (int)All11.Rgba, _width, _height, 0, All11.Rgba, All11.UnsignedByte, IntPtr.Zero);
GL11.BindTexture(All11.Texture2D, 0);
//data = null;
}
static void arglCleanup(ARGL_CONTEXT_SETTINGS contextSettings)
{
if (contextSettings == null)
{
return; // Sanity check.
}
if (contextSettings.textureObjectsHaveBeenSetup)
{
GL1.ActiveTexture(All1.Texture0);
GL1.BindTexture(All1.Texture2D, 0);
GL1.DeleteTextures(1, ref contextSettings.texture);
}
if (contextSettings.textureGeometryHasBeenSetup)
{
GL1.DeleteBuffers(1, ref contextSettings.t2bo);
GL1.DeleteBuffers(1, ref contextSettings.v2bo);
}
contextSettings = null;
}
protected override void OnRenderFrame(FrameEventArgs e)
{
base.OnRenderFrame(e);
MakeCurrent();
SetupView();
GL1.Clear((int)(All.ColorBufferBit | All.DepthBufferBit)); // Clear The Screen And The Depth Buffer
GL1.LoadIdentity(); // Reset The Current Modelview Matrix
GL1.Translate(0.0f, 0.0f, z); // Move Right And Into The Screen
GL1.Rotate(xrot, 1.0f, 0.0f, 0.0f); // Rotate On The X Axis By xrot
GL1.Rotate(yrot, 0.0f, 1.0f, 0.0f); // Rotate On The Y Axis By yrot
GL1.BindTexture(All1.Texture2D, texture[filter]); // Select A Texture Based On filter
float [] cubeVerticies =
{
-1.0f, 1.0f, 1.0f, // Top Left Of The Quad (Front)
-1.0f, -1.0f, 1.0f, // Bottom Left Of The Quad (Front)
1.0f, 1.0f, 1.0f, // Top Right Of The Quad (Front)
1.0f, -1.0f, 1.0f, // Bottom Right Of The Quad (Front)
-1.0f, -1.0f, -1.0f, // Bottom Left Of The Quad (Back)
-1.0f, 1.0f, -1.0f, // Top Left Of The Quad (Back)
1.0f, -1.0f, -1.0f, // Bottom Right Of The Quad (Back)
1.0f, 1.0f, -1.0f, // Top Right Of The Quad (Back)
-1.0f, 1.0f, -1.0f, // Top Left Of The Quad (Top)
-1.0f, 1.0f, 1.0f, // Bottom Left Of The Quad (Top)
1.0f, 1.0f, -1.0f, // Top Right Of The Quad (Top)
1.0f, 1.0f, 1.0f, // Bottom Right Of The Quad (Top)
-1.0f, -1.0f, -1.0f, // Top Left Of The Quad (Bottom)
1.0f, -1.0f, -1.0f, // Top Right Of The Quad (Bottom)
-1.0f, -1.0f, 1.0f, // Bottom Left Of The Quad (Bottom)
1.0f, -1.0f, 1.0f, // Bottom Right Of The Quad (Bottom)
1.0f, -1.0f, -1.0f, // Bottom Right Of The Quad (Right)
1.0f, 1.0f, -1.0f, // Top Right Of The Quad (Right)
1.0f, -1.0f, 1.0f, // Bottom Left Of The Quad (Right)
1.0f, 1.0f, 1.0f, // Top Left Of The Quad (Right)
-1.0f, -1.0f, -1.0f, // Bottom Right Of The Quad (Left)
-1.0f, -1.0f, 1.0f, // Bottom Left Of The Quad (Left)
-1.0f, 1.0f, -1.0f, // Top Right Of The Quad (Left)
-1.0f, 1.0f, 1.0f, // Top Left Of The Quad (Left)
};
float [] cubeTexs =
{
0.0f, 0.0f, // Top Left Of The Quad (Front)
0.0f, 1.0f, // Bottom Left Of The Quad (Front)
1.0f, 0.0f, // Top Right Of The Quad (Front)
1.0f, 1.0f, // Bottom Right Of The Quad (Front)
1.0f, 1.0f, // Bottom Left Of The Quad (Back)
1.0f, 0.0f, // Top Left Of The Quad (Back)
0.0f, 1.0f, // Bottom Right Of The Quad (Back)
0.0f, 0.0f, // Top Right Of The Quad (Back)
0.0f, 0.0f, // Top Left Of The Quad (Top)
0.0f, 1.0f, // Bottom Left Of The Quad (Top)
1.0f, 0.0f, // Top Right Of The Quad (Top)
1.0f, 1.0f, // Bottom Right Of The Quad (Top)
1.0f, 0.0f, // Top Left Of The Quad (Bottom)
0.0f, 0.0f, // Top Right Of The Quad (Bottom)
1.0f, 1.0f, // Bottom Left Of The Quad (Bottom)
0.0f, 1.0f, // Bottom Right Of The Quad (Bottom)
1.0f, 1.0f, // Bottom Right Of The Quad (Right)
1.0f, 0.0f, // Top Right Of The Quad (Right)
0.0f, 1.0f, // Bottom Left Of The Quad (Right)
0.0f, 0.0f, // Top Left Of The Quad (Right)
0.0f, 1.0f, // Bottom Right Of The Quad (Left)
1.0f, 1.0f, // Bottom Left Of The Quad (Left)
0.0f, 0.0f, // Top Right Of The Quad (Left)
1.0f, 0.0f, // Top Left Of The Quad (Left)
};
float [] cubeNormals =
{
0.0f, 0.0f, 1.0f, // Top Left Of The Quad (Front)
0.0f, 0.0f, 1.0f, // Bottom Left Of The Quad (Front)
0.0f, 0.0f, 1.0f, // Top Right Of The Quad (Front)
0.0f, 0.0f, 1.0f, // Bottom Right Of The Quad (Front)
0.0f, 0.0f, -1.0f, // Bottom Left Of The Quad (Back)
0.0f, 0.0f, -1.0f, // Top Left Of The Quad (Back)
0.0f, 0.0f, -1.0f, // Bottom Right Of The Quad (Back)
0.0f, 0.0f, -1.0f, // Top Right Of The Quad (Back)
0.0f, 1.0f, 0.0f, // Top Left Of The Quad (Top)
0.0f, 1.0f, 0.0f, // Bottom Left Of The Quad (Top)
0.0f, 1.0f, 0.0f, // Top Right Of The Quad (Top)
0.0f, 1.0f, 0.0f, // Bottom Right Of The Quad (Top)
0.0f, -1.0f, 0.0f, // Top Left Of The Quad (Bottom)
0.0f, -1.0f, 0.0f, // Top Right Of The Quad (Bottom)
0.0f, -1.0f, 0.0f, // Bottom Left Of The Quad (Bottom)
0.0f, -1.0f, 0.0f, // Bottom Right Of The Quad (Bottom)
1.0f, 0.0f, 0.0f, // Bottom Right Of The Quad (Right)
1.0f, 0.0f, 0.0f, // Top Right Of The Quad (Right)
1.0f, 0.0f, 0.0f, // Bottom Left Of The Quad (Right)
1.0f, 0.0f, 0.0f, // Top Left Of The Quad (Right)
-1.0f, 0.0f, 0.0f, // Bottom Right Of The Quad (Left)
-1.0f, 0.0f, 0.0f, // Bottom Left Of The Quad (Left)
-1.0f, 0.0f, 0.0f, // Top Right Of The Quad (Left)
-1.0f, 0.0f, 0.0f, // Top Left Of The Quad (Left)
};
GL1.VertexPointer(3, All1.Float, 0, cubeVerticies);
GL1.EnableClientState(All1.VertexArray);
GL1.TexCoordPointer(2, All1.Float, 0, cubeTexs);
GL1.EnableClientState(All1.TextureCoordArray);
GL1.NormalPointer(All1.Float, 0, cubeNormals);
GL1.EnableClientState(All1.NormalArray);
GL1.DrawArrays(All1.TriangleStrip, 0, 4);
GL1.DrawArrays(All1.TriangleStrip, 4, 4);
GL1.DrawArrays(All1.TriangleStrip, 8, 4);
GL1.DrawArrays(All1.TriangleStrip, 12, 4);
GL1.DrawArrays(All1.TriangleStrip, 16, 4);
GL1.DrawArrays(All1.TriangleStrip, 20, 4);
SwapBuffers();
xrot += xspeed; // Add xspeed To xrot
yrot += yspeed; // Add yspeed To yrot
handleButtons();
}
public void DrawBatch11(SpriteSortMode sortMode)
{
// nothing to do
if (_batchItemList.Count == 0)
{
return;
}
// sort the batch items
switch (sortMode)
{
case SpriteSortMode.Texture:
_batchItemList.Sort(CompareTexture);
break;
case SpriteSortMode.FrontToBack:
_batchItemList.Sort(CompareDepth);
break;
case SpriteSortMode.BackToFront:
_batchItemList.Sort(CompareReverseDepth);
break;
}
// make sure an old draw isn't still going on.
// cross fingers, commenting this out!!
//GL.Flush();
int size = VertexPosition2ColorTexture.GetSize();
GL11.VertexPointer(2, All11.Float, size, _vertexHandle.AddrOfPinnedObject());
GL11.ColorPointer(4, All11.UnsignedByte, size, (IntPtr)((uint)_vertexHandle.AddrOfPinnedObject() + (uint)(sizeof(float) * 2)));
GL11.TexCoordPointer(2, All11.Float, size, (IntPtr)((uint)_vertexHandle.AddrOfPinnedObject() + (uint)(sizeof(float) * 2 + sizeof(uint))));
// setup the vertexArray array
int startIndex = 0;
int index = 0;
int texID = -1;
// make sure the vertexArray has enough space
if (_batchItemList.Count * 4 > _vertexArray.Length)
{
ExpandVertexArray(_batchItemList.Count);
}
foreach (SpriteBatchItem item in _batchItemList)
{
// if the texture changed, we need to flush and bind the new texture
if (item.TextureID != texID)
{
FlushVertexArray11(startIndex, index);
startIndex = index;
texID = item.TextureID;
GL11.BindTexture(All11.Texture2D, texID);
}
// store the SpriteBatchItem data in our vertexArray
_vertexArray[index++] = item.vertexTL;
_vertexArray[index++] = item.vertexTR;
_vertexArray[index++] = item.vertexBL;
_vertexArray[index++] = item.vertexBR;
_freeBatchItemQueue.Enqueue(item);
}
// flush the remaining vertexArray data
FlushVertexArray11(startIndex, index);
_batchItemList.Clear();
}
static void arglDispImageStateful(ARGL_CONTEXT_SETTINGS contextSettings)
{
int texEnvModeSave;
int i;
if (contextSettings == null)
{
return;
}
if (contextSettings.textureObjectsHaveBeenSetup)
{
return;
}
if (contextSettings.textureGeometryHasBeenSetup)
{
return;
}
if (contextSettings.textureDataReady)
{
return;
}
GL1.ActiveTexture(All1.Texture0);
GL1.MatrixMode(All1.Texture);
GL1.LoadIdentity();
GL1.MatrixMode(All1.Modelview);
GL1.BindTexture(All1.Texture2D, contextSettings.texture);
GL1.GetTexEnv(All1.TextureEnv, All1.TextureEnvMode, out texEnvModeSave); // Save GL texture environment mode.
if (texEnvModeSave != (int)All1.Replace)
{
GL1.TexEnv(All1.TextureEnv, All1.TextureEnvMode, (int)All1.Replace);
}
GL1.Enable(All1.Texture2D);
GL1.ClientActiveTexture(All1.Texture0);
GL1.BindBuffer(All1.ArrayBuffer, contextSettings.t2bo);
GL1.TexCoordPointer(2, All1.Float, 0, IntPtr.Zero);
GL1.EnableClientState(All1.TextureCoordArray);
GL1.BindBuffer(All1.ArrayBuffer, contextSettings.v2bo);
GL1.VertexPointer(2, All1.Float, 0, IntPtr.Zero);
GL1.EnableClientState(All1.VertexArray);
GL1.DisableClientState(All1.NormalArray);
if (contextSettings.disableDistortionCompensation)
{
GL1.DrawArrays(All1.TriangleStrip, 0, 4);
}
else
{
for (i = 0; i < 20; i++)
{
GL1.DrawArrays(All1.TriangleStrip, i * 42, 42);
}
}
GL1.BindBuffer(All1.ArrayBuffer, 0);
GL1.DisableClientState(All1.VertexArray);
GL1.DisableClientState(All1.TextureCoordArray);
GL1.Disable(All1.Texture2D);
if (texEnvModeSave != (int)All1.Replace)
{
GL1.TexEnv(All1.TextureEnv, All1.TextureEnvMode, texEnvModeSave); // Restore GL texture environment mode.
}
}
private void setTexture(Texture2D texture)
{
GL11.BindTexture(All11.Texture2D, texture.Image.Name);
}
public void DrawBatchGL11(SpriteSortMode sortMode, SamplerState samplerState)
{
// nothing to do
if (_batchItemList.Count == 0)
{
return;
}
// sort the batch items
switch (sortMode)
{
case SpriteSortMode.Texture:
throw new NotSupportedException();
//_batchItemList.Sort( CompareTexture );
case SpriteSortMode.FrontToBack:
throw new NotSupportedException();
//_batchItemList.Sort ( CompareDepth );
case SpriteSortMode.BackToFront:
throw new NotSupportedException();
//_batchItemList.Sort ( CompareReverseDepth );
}
// make sure an old draw isn't still going on.
// cross fingers, commenting this out!!
//GL.Flush();
// make sure the vertexArray has enough space
if (_batchItemList.Count * 6 > _index.Length)
{
ExpandIndexArray(_batchItemList.Count);
}
LinkVertexArray();
int size = sizeof(float) * 4 + sizeof(uint);
GL11.VertexPointer(2, ALL11.Float, size, _vertexHandle.AddrOfPinnedObject());
GL11.ColorPointer(4, ALL11.UnsignedByte, size, (IntPtr)((uint)_vertexHandle.AddrOfPinnedObject() + (uint)(sizeof(float) * 2)));
GL11.TexCoordPointer(2, ALL11.Float, size, (IntPtr)((uint)_vertexHandle.AddrOfPinnedObject() + (uint)(sizeof(float) * 2 + sizeof(uint))));
// setup the vertexArray array
int startIndex = 0;
int index = 0;
int texID = -1;
foreach (SpriteBatchItem item in _batchItemList)
{
// if the texture changed, we need to flush and bind the new texture
if (item.TextureID != texID)
{
FlushVertexArrayGL11(startIndex, index);
startIndex = index;
texID = item.TextureID;
GL11.BindTexture(ALL11.Texture2D, texID);
samplerState.Activate();
}
// store the SpriteBatchItem data in our vertexArray
index += 4;
}
// flush the remaining vertexArray data
FlushVertexArrayGL11(startIndex, index);
_batchItemList.Clear();
_vertexArray.Clear();
}
public void InitWithData(IntPtr data, SurfaceFormat pixelFormat, int width, int height, Size size, ALL11 filter, ALL11 wrap)
{
if (GraphicsDevice.OpenGLESVersion == OpenTK.Graphics.GLContextVersion.Gles2_0)
{
if (!MathHelper.IsPowerOfTwo(width) || !MathHelper.IsPowerOfTwo(height))
{
filter = ALL11.Linear;
wrap = ALL11.ClampToEdge;
}
GL20.GenTextures(1, ref _name);
GL20.BindTexture(ALL20.Texture2D, _name);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureMinFilter, (int)filter);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureMagFilter, (int)filter);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureWrapS, (int)wrap);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureWrapT, (int)wrap);
switch (pixelFormat)
{
case SurfaceFormat.Color /*kTexture2DPixelFormat_RGBA8888*/:
case SurfaceFormat.Dxt1:
case SurfaceFormat.Dxt3:
//sz = 4;
GL20.TexImage2D(ALL20.Texture2D, 0, (int)ALL20.Rgba, (int)width, (int)height, 0, ALL20.Rgba, ALL20.UnsignedByte, data);
break;
case SurfaceFormat.Bgra4444 /*kTexture2DPixelFormat_RGBA4444*/:
//sz = 2;
GL20.TexImage2D(ALL20.Texture2D, 0, (int)ALL20.Rgba, (int)width, (int)height, 0, ALL20.Rgba, ALL20.UnsignedShort4444, data);
break;
case SurfaceFormat.Bgra5551 /*kTexture2DPixelFormat_RGB5A1*/:
//sz = 2;
GL20.TexImage2D(ALL20.Texture2D, 0, (int)ALL20.Rgba, (int)width, (int)height, 0, ALL20.Rgba, ALL20.UnsignedShort5551, data);
break;
case SurfaceFormat.Alpha8 /*kTexture2DPixelFormat_A8*/:
//sz = 1;
GL20.TexImage2D(ALL20.Texture2D, 0, (int)ALL20.Alpha, (int)width, (int)height, 0, ALL20.Alpha, ALL20.UnsignedByte, data);
break;
default:
throw new NotSupportedException("Texture format");
}
}
else
{
GL11.GenTextures(1, ref _name);
GL11.BindTexture(ALL11.Texture2D, _name);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureMinFilter, (int)filter);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureMagFilter, (int)filter);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureWrapS, (int)ALL11.ClampToEdge);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureWrapT, (int)ALL11.ClampToEdge);
switch (pixelFormat)
{
case SurfaceFormat.Color /*kTexture2DPixelFormat_RGBA8888*/:
case SurfaceFormat.Dxt1:
case SurfaceFormat.Dxt3:
GL11.TexImage2D(ALL11.Texture2D, 0, (int)ALL11.Rgba, (int)width, (int)height, 0, ALL11.Rgba, ALL11.UnsignedByte, data);
break;
case SurfaceFormat.Bgra4444 /*kTexture2DPixelFormat_RGBA4444*/:
GL11.TexImage2D(ALL11.Texture2D, 0, (int)ALL11.Rgba, (int)width, (int)height, 0, ALL11.Rgba, ALL11.UnsignedShort4444, data);
break;
case SurfaceFormat.Bgra5551 /*kTexture2DPixelFormat_RGB5A1*/:
GL11.TexImage2D(ALL11.Texture2D, 0, (int)ALL11.Rgba, (int)width, (int)height, 0, ALL11.Rgba, ALL11.UnsignedShort5551, data);
break;
case SurfaceFormat.Alpha8 /*kTexture2DPixelFormat_A8*/:
GL11.TexImage2D(ALL11.Texture2D, 0, (int)ALL11.Alpha, (int)width, (int)height, 0, ALL11.Alpha, ALL11.UnsignedByte, data);
break;
default:
throw new NotSupportedException("Texture format");
}
}
_size = size;
_width = width;
_height = height;
_format = pixelFormat;
_maxS = size.Width / (float)_width;
_maxT = size.Height / (float)_height;
}
public void InitWithBitmap(Bitmap imageSource, ALL11 filter, ALL11 wrap)
{
//TODO: Android.Opengl.GLUtils.GetInternalFormat()
try
{
_format = SurfaceFormat.Color;
if (imageSource.HasAlpha)
{
_format = SurfaceFormat.Color;
}
if (GraphicsDevice.OpenGLESVersion == OpenTK.Graphics.GLContextVersion.Gles2_0)
{
_width = imageSource.Width;
_height = imageSource.Height;
// There are rules for npot textures that we must abide by (wrap = ClampToEdge and filter = Nearest or Linear)
if (!MathHelper.IsPowerOfTwo(_width) || !MathHelper.IsPowerOfTwo(_height))
{
filter = ALL11.Linear;
wrap = ALL11.ClampToEdge;
}
}
else
{
//scale up bitmap to be power of 2 dimensions but dont exceed 1024x1024.
//Note: may not have to do this with OpenGL 2+
_width = (int)Math.Pow(2, Math.Min(10, Math.Ceiling(Math.Log10(imageSource.Width) / Math.Log10(2))));
_height = (int)Math.Pow(2, Math.Min(10, Math.Ceiling(Math.Log10(imageSource.Height) / Math.Log10(2))));
}
_size.Width = _width;
_size.Height = _height;
if (GraphicsDevice.OpenGLESVersion ==
OpenTK.Graphics.GLContextVersion.Gles2_0)
{
GL20.GenTextures(1, ref _name);
}
else
{
GL11.GenTextures(1, ref _name);
}
if (_name == 0)
{
_originalBitmap = imageSource;
_originalFilter = filter;
_originalWrap = wrap;
PrimaryThreadLoader.AddToList(this);
_textureCreated = false;
}
else
{
_originalBitmap = null;
_textureCreated = true;
using (
Bitmap imagePadded = Bitmap.CreateBitmap(_width, _height,
Bitmap.Config.Argb8888)
)
{
using (Canvas can = new Canvas(imagePadded))
{
can.DrawARGB(0, 0, 0, 0);
if (AndroidCompatibility.ScaleImageToPowerOf2)
{
can.DrawBitmap(imageSource, new Rect(0, 0, imageSource.Width, imageSource.Height), new Rect(0, 0, _width, _height), null); //Scale to texture
}
else
{
can.DrawBitmap(imageSource, 0, 0, null);
}
if (GraphicsDevice.OpenGLESVersion ==
OpenTK.Graphics.GLContextVersion.Gles2_0)
{
GL20.BindTexture(ALL20.Texture2D, _name);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureMinFilter,
(int)filter);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureMagFilter,
(int)filter);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureWrapS, (int)wrap);
GL20.TexParameter(ALL20.Texture2D, ALL20.TextureWrapT, (int)wrap);
Android.Opengl.GLUtils.TexImage2D((int)ALL20.Texture2D, 0,
imagePadded, 0);
// error checking
//int errAndroidGL = Android.Opengl.GLES20.GlGetError();
//ALL20 errGenericGL = GL20.GetError();
//if (errAndroidGL != Android.Opengl.GLES20.GlNoError || errGenericGL != ALL20.NoError)
// Console.WriteLine(string.Format("OpenGL ES 2.0:\n\tAndroid error: {0,10:X}\n\tGeneric error: {1, 10:X}", errAndroidGL, errGenericGL));
}
else
{
GL11.BindTexture(ALL11.Texture2D, _name);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureMinFilter,
(int)filter);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureMagFilter,
(int)filter);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureWrapS, (int)wrap);
GL11.TexParameter(ALL11.Texture2D, ALL11.TextureWrapT, (int)wrap);
GL11.TexParameter(ALL11.Texture2D, ALL11.GenerateMipmap, 1);
Android.Opengl.GLUtils.TexImage2D((int)ALL11.Texture2D, 0,
imagePadded, 0);
}
}
}
}
}
finally
{
if (_originalBitmap != imageSource)
{
// free bitmap
imageSource.Dispose();
}
}
_maxS = _size.Width / (float)_width;
_maxT = _size.Height / (float)_height;
}
