| ␊ |
| ␉␉#region glGetTexImage Methods␊ |
| ␊ |
| ␉␉public void GetTextureData2D<T>(␊ |
| ␉␉public void GetTextureData2D(␊ |
| ␉␉␉IGLTexture texture,␊ |
| ␉␉␉SurfaceFormat format,␊ |
| ␉␉␉int width,␊ |
| ␉␉␉int height,␊ |
| ␉␉␉int level,␊ |
| ␉␉␉Rectangle? rect,␊ |
| ␉␉␉T[] data,␊ |
| ␉␉␉IntPtr data,␊ |
| ␉␉␉int startIndex,␊ |
| ␉␉␉int elementCount␊ |
| ␉␉) where T : struct {␊ |
| ␉␉␉int elementCount,␊ |
| ␉␉␉int elementSizeInBytes␊ |
| ␉␉) {␊ |
| #if !DISABLE_THREADING␊ |
| ␉␉␉ForceToMainThread(() => {␊ |
| #endif␊ |
|
| ␉␉␉else if (rect == null)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉// Just throw the whole texture into the user array.␊ |
| ␉␉␉␉GCHandle ptr = GCHandle.Alloc(data, GCHandleType.Pinned);␊ |
| ␉␉␉␉try␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉glGetTexImage(␊ |
| ␉␉␉␉␉␉GLenum.GL_TEXTURE_2D,␊ |
| ␉␉␉␉␉␉0,␊ |
| ␉␉␉␉␉␉glFormat,␊ |
| ␉␉␉␉␉␉XNAToGL.TextureDataType[(int) format],␊ |
| ␉␉␉␉␉␉ptr.AddrOfPinnedObject()␊ |
| ␉␉␉␉␉);␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉finally␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉ptr.Free();␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉glGetTexImage(␊ |
| ␉␉␉␉␉GLenum.GL_TEXTURE_2D,␊ |
| ␉␉␉␉␉0,␊ |
| ␉␉␉␉␉glFormat,␊ |
| ␉␉␉␉␉XNAToGL.TextureDataType[(int) format],␊ |
| ␉␉␉␉␉data␊ |
| ␉␉␉␉);␊ |
| ␉␉␉}␊ |
| ␉␉␉else␊ |
| ␉␉␉{␊ |
| ␉␉␉␉// Get the whole texture...␊ |
| ␉␉␉␉T[] texData = new T[width * height];␊ |
| ␉␉␉␉GCHandle ptr = GCHandle.Alloc(texData, GCHandleType.Pinned);␊ |
| ␉␉␉␉try␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉glGetTexImage(␊ |
| ␉␉␉␉␉␉GLenum.GL_TEXTURE_2D,␊ |
| ␉␉␉␉␉␉0,␊ |
| ␉␉␉␉␉␉glFormat,␊ |
| ␉␉␉␉␉␉XNAToGL.TextureDataType[(int) format],␊ |
| ␉␉␉␉␉␉ptr.AddrOfPinnedObject()␊ |
| ␉␉␉␉␉);␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉finally␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉ptr.Free();␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉IntPtr texData = Marshal.AllocHGlobal(width * height * elementSizeInBytes);␊ |
| ␉␉␉␉glGetTexImage(␊ |
| ␉␉␉␉␉GLenum.GL_TEXTURE_2D,␊ |
| ␉␉␉␉␉0,␊ |
| ␉␉␉␉␉glFormat,␊ |
| ␉␉␉␉␉XNAToGL.TextureDataType[(int) format],␊ |
| ␉␉␉␉␉texData␊ |
| ␉␉␉␉);␊ |
| ␊ |
| ␉␉␉␉// Now, blit the rect region into the user array.␊ |
| ␉␉␉␉Rectangle region = rect.Value;␊ |
|
| ␉␉␉␉␉␉␉// If we're past the end, we're done!␊ |
| ␉␉␉␉␉␉␉return;␊ |
| ␉␉␉␉␉␉}␊ |
| ␉␉␉␉␉␉data[curPixel - startIndex] = texData[(row * width) + col];␊ |
| ␉␉␉␉␉␉// FIXME: Can we copy via pitch instead, or something? -flibit␊ |
| ␉␉␉␉␉␉memcpy(␊ |
| ␉␉␉␉␉␉␉data + ((curPixel - startIndex) * elementSizeInBytes),␊ |
| ␉␉␉␉␉␉␉texData + (((row * width) + col) * elementSizeInBytes),␊ |
| ␉␉␉␉␉␉␉(IntPtr) elementSizeInBytes␊ |
| ␉␉␉␉␉␉);␊ |
| ␉␉␉␉␉}␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉Marshal.FreeHGlobal(texData);␊ |
| ␉␉␉}␊ |
| ␊ |
| #if !DISABLE_THREADING␊ |
|
| #endif␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉public void GetTextureDataCube<T>(␊ |
| ␉␉public void GetTextureDataCube(␊ |
| ␉␉␉IGLTexture texture,␊ |
| ␉␉␉SurfaceFormat format,␊ |
| ␉␉␉int size,␊ |
| ␉␉␉CubeMapFace cubeMapFace,␊ |
| ␉␉␉int level,␊ |
| ␉␉␉Rectangle? rect,␊ |
| ␉␉␉T[] data,␊ |
| ␉␉␉IntPtr data,␊ |
| ␉␉␉int startIndex,␊ |
| ␉␉␉int elementCount␊ |
| ␉␉) where T : struct {␊ |
| ␉␉␉int elementCount,␊ |
| ␉␉␉int elementSizeInBytes␊ |
| ␉␉) {␊ |
| #if !DISABLE_THREADING␊ |
| ␉␉␉ForceToMainThread(() => {␊ |
| #endif␊ |
|
| ␉␉␉else if (rect == null)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉// Just throw the whole texture into the user array.␊ |
| ␉␉␉␉GCHandle ptr = GCHandle.Alloc(data, GCHandleType.Pinned);␊ |
| ␉␉␉␉try␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉glGetTexImage(␊ |
| ␉␉␉␉␉␉GLenum.GL_TEXTURE_CUBE_MAP_POSITIVE_X + (int) cubeMapFace,␊ |
| ␉␉␉␉␉␉0,␊ |
| ␉␉␉␉␉␉glFormat,␊ |
| ␉␉␉␉␉␉XNAToGL.TextureDataType[(int) format],␊ |
| ␉␉␉␉␉␉ptr.AddrOfPinnedObject()␊ |
| ␉␉␉␉␉);␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉finally␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉ptr.Free();␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉glGetTexImage(␊ |
| ␉␉␉␉␉GLenum.GL_TEXTURE_CUBE_MAP_POSITIVE_X + (int) cubeMapFace,␊ |
| ␉␉␉␉␉0,␊ |
| ␉␉␉␉␉glFormat,␊ |
| ␉␉␉␉␉XNAToGL.TextureDataType[(int) format],␊ |
| ␉␉␉␉␉data␊ |
| ␉␉␉␉);␊ |
| ␉␉␉}␊ |
| ␉␉␉else␊ |
| ␉␉␉{␊ |
| ␉␉␉␉// Get the whole texture...␊ |
| ␉␉␉␉T[] texData = new T[size * size];␊ |
| ␉␉␉␉GCHandle ptr = GCHandle.Alloc(texData, GCHandleType.Pinned);␊ |
| ␉␉␉␉try␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉glGetTexImage(␊ |
| ␉␉␉␉␉␉GLenum.GL_TEXTURE_CUBE_MAP_POSITIVE_X + (int) cubeMapFace,␊ |
| ␉␉␉␉␉␉0,␊ |
| ␉␉␉␉␉␉glFormat,␊ |
| ␉␉␉␉␉␉XNAToGL.TextureDataType[(int) format],␊ |
| ␉␉␉␉␉␉ptr.AddrOfPinnedObject()␊ |
| ␉␉␉␉␉);␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉finally␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉ptr.Free();␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉IntPtr texData = Marshal.AllocHGlobal(size * size * elementSizeInBytes);␊ |
| ␉␉␉␉glGetTexImage(␊ |
| ␉␉␉␉␉GLenum.GL_TEXTURE_CUBE_MAP_POSITIVE_X + (int) cubeMapFace,␊ |
| ␉␉␉␉␉0,␊ |
| ␉␉␉␉␉glFormat,␊ |
| ␉␉␉␉␉XNAToGL.TextureDataType[(int) format],␊ |
| ␉␉␉␉␉texData␊ |
| ␉␉␉␉);␊ |
| ␊ |
| ␉␉␉␉// Now, blit the rect region into the user array.␊ |
| ␉␉␉␉Rectangle region = rect.Value;␊ |
|
| ␉␉␉␉␉␉␉// If we're past the end, we're done!␊ |
| ␉␉␉␉␉␉␉return;␊ |
| ␉␉␉␉␉␉}␊ |
| ␉␉␉␉␉␉data[curPixel - startIndex] = texData[(row * size) + col];␊ |
| ␉␉␉␉␉␉// FIXME: Can we copy via pitch instead, or something? -flibit␊ |
| ␉␉␉␉␉␉memcpy(␊ |
| ␉␉␉␉␉␉␉data + ((curPixel - startIndex) * elementSizeInBytes),␊ |
| ␉␉␉␉␉␉␉texData + (((row * size) + col) * elementSizeInBytes),␊ |
| ␉␉␉␉␉␉␉(IntPtr) elementSizeInBytes␊ |
| ␉␉␉␉␉␉);␊ |
| ␉␉␉␉␉}␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉Marshal.FreeHGlobal(texData);␊ |
| ␉␉␉}␊ |
| ␊ |
| #if !DISABLE_THREADING␊ |
|
| ␉␉/// <param name="data">The texture data array</param>␊ |
| ␉␉/// <param name="rect">The portion of the image to read from</param>␊ |
| ␉␉/// <returns>True if we successfully read the texture data</returns>␊ |
| ␉␉private bool ReadTargetIfApplicable<T>(␊ |
| ␉␉private bool ReadTargetIfApplicable(␊ |
| ␉␉␉IGLTexture texture,␊ |
| ␉␉␉int width,␊ |
| ␉␉␉int height,␊ |
| ␉␉␉int level,␊ |
| ␉␉␉T[] data,␊ |
| ␉␉␉IntPtr data,␊ |
| ␉␉␉Rectangle? rect␊ |
| ␉␉) where T : struct {␊ |
| ␉␉) {␊ |
| ␉␉␉bool texUnbound = (␉currentDrawBuffers != 1 ||␊ |
| ␉␉␉␉␉␉currentAttachments[0] != (texture as OpenGLTexture).Handle␉);␊ |
| ␉␉␉if (texUnbound && !useES2)␊ |
|
| ␉␉␉/* glReadPixels should be faster than reading␊ |
| ␉␉␉ * back from the render target if we are already bound.␊ |
| ␉␉␉ */␊ |
| ␉␉␉GCHandle handle = GCHandle.Alloc(data, GCHandleType.Pinned);␊ |
| ␉␉␉try␊ |
| ␉␉␉{␊ |
| ␉␉␉␉glReadPixels(␊ |
| ␉␉␉␉␉x,␊ |
| ␉␉␉␉␉y,␊ |
| ␉␉␉␉␉w,␊ |
| ␉␉␉␉␉h,␊ |
| ␉␉␉␉␉GLenum.GL_RGBA, // FIXME: Assumption!␊ |
| ␉␉␉␉␉GLenum.GL_UNSIGNED_BYTE,␊ |
| ␉␉␉␉␉handle.AddrOfPinnedObject()␊ |
| ␉␉␉␉);␊ |
| ␉␉␉}␊ |
| ␉␉␉finally␊ |
| ␉␉␉{␊ |
| ␉␉␉␉handle.Free();␊ |
| ␉␉␉}␊ |
| ␉␉␉glReadPixels(␊ |
| ␉␉␉␉x,␊ |
| ␉␉␉␉y,␊ |
| ␉␉␉␉w,␊ |
| ␉␉␉␉h,␊ |
| ␉␉␉␉GLenum.GL_RGBA, // FIXME: Assumption!␊ |
| ␉␉␉␉GLenum.GL_UNSIGNED_BYTE,␊ |
| ␉␉␉␉data␊ |
| ␉␉␉);␊ |
| ␊ |
| ␉␉␉if (texUnbound)␊ |
| ␉␉␉{␊ |
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