void INativeRenderTarget.GetData <T>(T[] buffer, ColorDataLayout dataLayout, ColorDataElementType dataElementType, int targetIndex, int x, int y, int width, int height)
{
DefaultOpenTKBackendPlugin.GuardSingleThreadState();
NativeRenderTarget lastRt = BoundRT;
Bind(this);
{
GL.ReadBuffer((ReadBufferMode)((int)ReadBufferMode.ColorAttachment0 + targetIndex));
GL.ReadPixels(x, y, width, height, dataLayout.ToOpenTK(), dataElementType.ToOpenTK(), buffer);
GL.ReadBuffer(ReadBufferMode.Back);
}
Bind(lastRt);
}
void INativeTexture.GetData(IntPtr target, ColorDataLayout dataLayout, ColorDataElementType dataElementType)
{
DefaultOpenTKBackendPlugin.GuardSingleThreadState();
int lastTexId;
GL.GetInteger(GetPName.TextureBinding2D, out lastTexId);
GL.BindTexture(TextureTarget.Texture2D, this.handle);
GL.GetTexImage(TextureTarget.Texture2D, 0,
dataLayout.ToOpenTK(), dataElementType.ToOpenTK(),
target);
GL.BindTexture(TextureTarget.Texture2D, lastTexId);
}
void INativeRenderTarget.GetData <T>(T[] buffer, ColorDataLayout dataLayout, ColorDataElementType dataElementType, int targetIndex, int x, int y, int width, int height)
{
DefaultOpenTKBackendPlugin.GuardSingleThreadState();
this.ApplyPostRender();
if (curBound != this)
{
ApplyGLBind(this);
}
{
GL.Ext.BindFramebuffer(FramebufferTarget.ReadFramebuffer, this.handleMainFBO);
GL.ReadBuffer((ReadBufferMode)((int)ReadBufferMode.ColorAttachment0 + targetIndex));
GL.ReadPixels(x, y, width, height, dataLayout.ToOpenTK(), dataElementType.ToOpenTK(), buffer);
}
ApplyGLBind(curBound);
}
void IGraphicsBackend.GetOutputPixelData(IntPtr buffer, ColorDataLayout dataLayout, ColorDataElementType dataElementType, int x, int y, int width, int height)
{
//DefaultOpenTKBackendPlugin.GuardSingleThreadState();
NativeRenderTarget lastRt = NativeRenderTarget.BoundRT;
NativeRenderTarget.Bind(null);
{
// Use a temporary local buffer, since the image will be upside-down because
// of OpenGL's coordinate system and we'll need to flip it before returning.
byte[] byteData = new byte[width * height * 4];
// Retrieve pixel data
GL.ReadPixels(x, y, width, height, dataLayout.ToOpenTK(), dataElementType.ToOpenTK(), byteData);
// Flip the retrieved image vertically
int bytesPerLine = width * 4;
byte[] switchLine = new byte[width * 4];
for (int flipY = 0; flipY < height / 2; flipY++)
{
int lineIndex = flipY * width * 4;
int lineIndex2 = (height - 1 - flipY) * width * 4;
// Copy the current line to the switch buffer
for (int lineX = 0; lineX < bytesPerLine; lineX++)
{
switchLine[lineX] = byteData[lineIndex + lineX];
}
// Copy the opposite line to the current line
for (int lineX = 0; lineX < bytesPerLine; lineX++)
{
byteData[lineIndex + lineX] = byteData[lineIndex2 + lineX];
}
// Copy the switch buffer to the opposite line
for (int lineX = 0; lineX < bytesPerLine; lineX++)
{
byteData[lineIndex2 + lineX] = switchLine[lineX];
}
}
// Copy the flipped data to the output buffer
Marshal.Copy(byteData, 0, buffer, width * height * 4);
}
NativeRenderTarget.Bind(lastRt);
}
void INativeTexture.LoadData(TexturePixelFormat format, int width, int height, IntPtr data, ColorDataLayout dataLayout, ColorDataElementType dataElementType)
{
DefaultOpenTKBackendPlugin.GuardSingleThreadState();
int lastTexId;
GL.GetInteger(GetPName.TextureBinding2D, out lastTexId);
GL.BindTexture(TextureTarget.Texture2D, this.handle);
// Load pixel data to video memory
GL.TexImage2D(TextureTarget.Texture2D, 0,
ToOpenTKPixelFormat(format), width, height, 0,
dataLayout.ToOpenTK(), dataElementType.ToOpenTK(),
data);
this.width = width;
this.height = height;
this.format = format;
GL.BindTexture(TextureTarget.Texture2D, lastTexId);
}
void IGraphicsBackend.GetOutputPixelData <T>(T[] buffer, ColorDataLayout dataLayout, ColorDataElementType dataElementType, int x, int y, int width, int height)
{
// Removed thread guards because of performance
//DefaultOpenTKBackendPlugin.GuardSingleThreadState();
NativeRenderTarget lastRt = NativeRenderTarget.BoundRT;
NativeRenderTarget.Bind(null);
{
GL.ReadPixels(x, y, width, height, dataLayout.ToOpenTK(), dataElementType.ToOpenTK(), buffer);
// The image will be upside-down because of OpenGL's coordinate system. Flip it.
int structSize = Marshal.SizeOf(typeof(T));
T[] switchLine = new T[width * 4 / structSize];
for (int flipY = 0; flipY < height / 2; flipY++)
{
int lineIndex = flipY * width * 4 / structSize;
int lineIndex2 = (height - 1 - flipY) * width * 4 / structSize;
// Copy the current line to the switch buffer
for (int lineX = 0; lineX < width; lineX++)
{
switchLine[lineX] = buffer[lineIndex + lineX];
}
// Copy the opposite line to the current line
for (int lineX = 0; lineX < width; lineX++)
{
buffer[lineIndex + lineX] = buffer[lineIndex2 + lineX];
}
// Copy the switch buffer to the opposite line
for (int lineX = 0; lineX < width; lineX++)
{
buffer[lineIndex2 + lineX] = switchLine[lineX];
}
}
}
NativeRenderTarget.Bind(lastRt);
}
unsafe void INativeTexture.LoadData(TexturePixelFormat format, int width, int height, IntPtr data, ColorDataLayout dataLayout, ColorDataElementType dataElementType)
{
// Removed thread guards because of performance
//DefaultOpenTKBackendPlugin.GuardSingleThreadState();
WebGLTexture lastTexId = (WebGLTexture)GraphicsBackend.GL.GetParameter(WebGLRenderingContextBase.TEXTURE_BINDING_2D);
GraphicsBackend.GL.BindTexture(WebGLRenderingContextBase.TEXTURE_2D, this.handle);
// Load pixel data to video memory
GraphicsBackend.GL.TexImage2D(WebGLRenderingContextBase.TEXTURE_2D, 0,
ToOpenTKPixelInternalFormat(format), width, height, 0,
dataLayout.ToOpenTK(), dataElementType.ToOpenTK(),
TypedArray <Uint8ClampedArray, byte> .From(new Span <byte>(data.ToPointer(), /*ToDo*/ (width * height * 4))));
GraphicsBackend.GL.GenerateMipmap(WebGLRenderingContextBase.TEXTURE_2D);
this.width = width;
this.height = height;
this.format = format;
GraphicsBackend.GL.BindTexture(WebGLRenderingContextBase.TEXTURE_2D, lastTexId);
}
void INativeTexture.LoadData <T>(TexturePixelFormat format, int width, int height, T[] data, ColorDataLayout dataLayout, ColorDataElementType dataElementType)
{
// Removed thread guards because of performance
//DefaultOpenTKBackendPlugin.GuardSingleThreadState();
int lastTexId;
GL.GetInteger(GetPName.TextureBinding2D, out lastTexId);
GL.BindTexture(TextureTarget.Texture2D, this.handle);
// Load pixel data to video memory
GL.TexImage2D(TextureTarget.Texture2D, 0,
ToOpenTKPixelInternalFormat(format), width, height, 0,
dataLayout.ToOpenTK(), dataElementType.ToOpenTK(),
data);
GL.GenerateMipmap(TextureTarget.Texture2D);
this.width = width;
this.height = height;
this.format = format;
GL.BindTexture(TextureTarget.Texture2D, lastTexId);
}
