public void SetVertexAttributes(ReadOnlySpan <VertexAttribDescriptor> vertexAttribs)
{
int index = 0;
for (; index < vertexAttribs.Length; index++)
{
VertexAttribDescriptor attrib = vertexAttribs[index];
if (attrib.Equals(_vertexAttribs[index]))
{
continue;
}
FormatInfo fmtInfo = FormatTable.GetFormatInfo(attrib.Format);
if (attrib.IsZero)
{
// Disabling the attribute causes the shader to read a constant value.
// The value is configurable, but by default is a vector of (0, 0, 0, 1).
DisableVertexAttrib(index);
}
else
{
EnableVertexAttrib(index);
}
int offset = attrib.Offset;
int size = fmtInfo.Components;
bool isFloat = fmtInfo.PixelType == PixelType.Float ||
fmtInfo.PixelType == PixelType.HalfFloat;
if (isFloat || fmtInfo.Normalized || fmtInfo.Scaled)
{
VertexAttribType type = (VertexAttribType)fmtInfo.PixelType;
GL.VertexAttribFormat(index, size, type, fmtInfo.Normalized, offset);
}
else
{
VertexAttribIntegerType type = (VertexAttribIntegerType)fmtInfo.PixelType;
GL.VertexAttribIFormat(index, size, type, offset);
}
GL.VertexAttribBinding(index, attrib.BufferIndex);
_vertexAttribs[index] = attrib;
}
_vertexAttribsCount = index;
for (; index < Constants.MaxVertexAttribs; index++)
{
DisableVertexAttrib(index);
}
}
private void CreateView()
{
TextureTarget target = Target.Convert();
FormatInfo format = FormatTable.GetFormatInfo(_info.Format);
PixelInternalFormat pixelInternalFormat;
if (format.IsCompressed)
{
pixelInternalFormat = (PixelInternalFormat)format.PixelFormat;
}
else
{
pixelInternalFormat = format.PixelInternalFormat;
}
GL.TextureView(
Handle,
target,
_parent.Handle,
pixelInternalFormat,
_firstLevel,
_info.Levels,
_firstLayer,
_info.GetLayers());
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(target, Handle);
int[] swizzleRgba = new int[]
{
(int)_info.SwizzleR.Convert(),
(int)_info.SwizzleG.Convert(),
(int)_info.SwizzleB.Convert(),
(int)_info.SwizzleA.Convert()
};
GL.TexParameter(target, TextureParameterName.TextureSwizzleRgba, swizzleRgba);
int maxLevel = _info.Levels - 1;
if (maxLevel < 0)
{
maxLevel = 0;
}
GL.TexParameter(target, TextureParameterName.TextureMaxLevel, maxLevel);
// TODO: This requires ARB_stencil_texturing, we should uncomment and test this.
// GL.TexParameter(target, TextureParameterName.DepthStencilTextureMode, (int)_info.DepthStencilMode.Convert());
}
public void SetImage(int unit, ITexture texture)
{
if (texture != null)
{
TextureView view = (TextureView)texture;
FormatInfo formatInfo = FormatTable.GetFormatInfo(view.Format);
SizedInternalFormat format = (SizedInternalFormat)formatInfo.PixelInternalFormat;
GL.BindImageTexture(unit, view.Handle, 0, true, 0, TextureAccess.ReadWrite, format);
}
}
private void CreateView()
{
TextureTarget target = Target.Convert();
FormatInfo format = FormatTable.GetFormatInfo(Info.Format);
PixelInternalFormat pixelInternalFormat;
if (format.IsCompressed)
{
pixelInternalFormat = (PixelInternalFormat)format.PixelFormat;
}
else
{
pixelInternalFormat = format.PixelInternalFormat;
}
GL.TextureView(
Handle,
target,
_parent.Handle,
pixelInternalFormat,
FirstLevel,
Info.Levels,
FirstLayer,
Info.GetLayers());
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(target, Handle);
int[] swizzleRgba = new int[]
{
(int)Info.SwizzleR.Convert(),
(int)Info.SwizzleG.Convert(),
(int)Info.SwizzleB.Convert(),
(int)Info.SwizzleA.Convert()
};
GL.TexParameter(target, TextureParameterName.TextureSwizzleRgba, swizzleRgba);
int maxLevel = Info.Levels - 1;
if (maxLevel < 0)
{
maxLevel = 0;
}
GL.TexParameter(target, TextureParameterName.TextureMaxLevel, maxLevel);
GL.TexParameter(target, TextureParameterName.DepthStencilTextureMode, (int)Info.DepthStencilMode.Convert());
}
public void SetVertexAttributes(VertexAttribDescriptor[] vertexAttribs)
{
int attribIndex = 0;
foreach (VertexAttribDescriptor attrib in vertexAttribs)
{
FormatInfo fmtInfo = FormatTable.GetFormatInfo(attrib.Format);
if (attrib.IsZero)
{
// Disabling the attribute causes the shader to read a constant value.
// The value is configurable, but by default is a vector of (0, 0, 0, 1).
GL.DisableVertexAttribArray(attribIndex);
}
else
{
GL.EnableVertexAttribArray(attribIndex);
}
int offset = attrib.Offset;
int size = fmtInfo.Components;
bool isFloat = fmtInfo.PixelType == PixelType.Float ||
fmtInfo.PixelType == PixelType.HalfFloat;
if (isFloat || fmtInfo.Normalized || fmtInfo.Scaled)
{
VertexAttribType type = (VertexAttribType)fmtInfo.PixelType;
GL.VertexAttribFormat(attribIndex, size, type, fmtInfo.Normalized, offset);
}
else
{
VertexAttribIntegerType type = (VertexAttribIntegerType)fmtInfo.PixelType;
GL.VertexAttribIFormat(attribIndex, size, type, offset);
}
GL.VertexAttribBinding(attribIndex, attrib.BufferIndex);
attribIndex++;
}
for (; attribIndex < 16; attribIndex++)
{
GL.DisableVertexAttribArray(attribIndex);
}
_vertexAttribs = vertexAttribs;
}
public void SetImage(int index, ShaderStage stage, ITexture texture)
{
int unit = _program.GetImageUnit(stage, index);
if (unit != -1 && texture != null)
{
TextureView view = (TextureView)texture;
FormatInfo formatInfo = FormatTable.GetFormatInfo(view.Format);
SizedInternalFormat format = (SizedInternalFormat)formatInfo.PixelInternalFormat;
GL.BindImageTexture(unit, view.Handle, 0, true, 0, TextureAccess.ReadWrite, format);
}
}
public void SetStorage(BufferRange buffer)
{
if (buffer.Buffer == _buffer &&
buffer.Offset == _bufferOffset &&
buffer.Size == _bufferSize)
{
return;
}
_buffer = (Buffer)buffer.Buffer;
_bufferOffset = buffer.Offset;
_bufferSize = buffer.Size;
Bind(0);
SizedInternalFormat format = (SizedInternalFormat)FormatTable.GetFormatInfo(Info.Format).PixelInternalFormat;
GL.TexBufferRange(TextureBufferTarget.TextureBuffer, format, _buffer.Handle, (IntPtr)buffer.Offset, buffer.Size);
}
private void WriteTo(IntPtr ptr)
{
TextureTarget target = Target.Convert();
Bind(target, 0);
FormatInfo format = FormatTable.GetFormatInfo(_info.Format);
int faces = 1;
if (target == TextureTarget.TextureCubeMap)
{
target = TextureTarget.TextureCubeMapPositiveX;
faces = 6;
}
for (int level = 0; level < _info.Levels; level++)
{
for (int face = 0; face < faces; face++)
{
int faceOffset = face * _info.GetMipSize2D(level);
if (format.IsCompressed)
{
GL.GetCompressedTexImage(target + face, level, ptr + faceOffset);
}
else
{
GL.GetTexImage(
target + face,
level,
format.PixelFormat,
format.PixelType,
ptr + faceOffset);
}
}
ptr += _info.GetMipSize(level);
}
}
public void SetVertexAttributes(VertexAttribDescriptor[] vertexAttribs)
{
int attribIndex = 0;
foreach (VertexAttribDescriptor attrib in vertexAttribs)
{
FormatInfo fmtInfo = FormatTable.GetFormatInfo(attrib.Format);
GL.EnableVertexAttribArray(attribIndex);
int offset = attrib.Offset;
int size = fmtInfo.Components;
bool isFloat = fmtInfo.PixelType == PixelType.Float ||
fmtInfo.PixelType == PixelType.HalfFloat;
if (isFloat || fmtInfo.Normalized || fmtInfo.Scaled)
{
VertexAttribType type = (VertexAttribType)fmtInfo.PixelType;
GL.VertexAttribFormat(attribIndex, size, type, fmtInfo.Normalized, offset);
}
else
{
VertexAttribIntegerType type = (VertexAttribIntegerType)fmtInfo.PixelType;
GL.VertexAttribIFormat(attribIndex, size, type, offset);
}
GL.VertexAttribBinding(attribIndex, attrib.BufferIndex);
attribIndex++;
}
for (; attribIndex < 16; attribIndex++)
{
GL.DisableVertexAttribArray(attribIndex);
}
_vertexAttribs = vertexAttribs;
}
private void SetData(IntPtr data, int size)
{
TextureTarget target = Target.Convert();
Bind(target, 0);
FormatInfo format = FormatTable.GetFormatInfo(_info.Format);
int width = _info.Width;
int height = _info.Height;
int depth = _info.Depth;
int offset = 0;
for (int level = 0; level < _info.Levels; level++)
{
int mipSize = _info.GetMipSize(level);
int endOffset = offset + mipSize;
if ((uint)endOffset > (uint)size)
{
return;
}
switch (_info.Target)
{
case Target.Texture1D:
if (format.IsCompressed)
{
GL.CompressedTexSubImage1D(
target,
level,
0,
width,
format.PixelFormat,
mipSize,
data);
}
else
{
GL.TexSubImage1D(
target,
level,
0,
width,
format.PixelFormat,
format.PixelType,
data);
}
break;
case Target.Texture1DArray:
case Target.Texture2D:
if (format.IsCompressed)
{
GL.CompressedTexSubImage2D(
target,
level,
0,
0,
width,
height,
format.PixelFormat,
mipSize,
data);
}
else
{
GL.TexSubImage2D(
target,
level,
0,
0,
width,
height,
format.PixelFormat,
format.PixelType,
data);
}
break;
case Target.Texture2DArray:
case Target.Texture3D:
case Target.CubemapArray:
if (format.IsCompressed)
{
GL.CompressedTexSubImage3D(
target,
level,
0,
0,
0,
width,
height,
depth,
format.PixelFormat,
mipSize,
data);
}
else
{
GL.TexSubImage3D(
target,
level,
0,
0,
0,
width,
height,
depth,
format.PixelFormat,
format.PixelType,
data);
}
break;
case Target.Cubemap:
int faceOffset = 0;
for (int face = 0; face < 6; face++, faceOffset += mipSize / 6)
{
if (format.IsCompressed)
{
GL.CompressedTexSubImage2D(
TextureTarget.TextureCubeMapPositiveX + face,
level,
0,
0,
width,
height,
format.PixelFormat,
mipSize / 6,
data + faceOffset);
}
else
{
GL.TexSubImage2D(
TextureTarget.TextureCubeMapPositiveX + face,
level,
0,
0,
width,
height,
format.PixelFormat,
format.PixelType,
data + faceOffset);
}
}
break;
}
data += mipSize;
offset += mipSize;
width = Math.Max(1, width >> 1);
height = Math.Max(1, height >> 1);
if (Target == Target.Texture3D)
{
depth = Math.Max(1, depth >> 1);
}
}
}
private void CreateImmutableStorage()
{
TextureTarget target = Info.Target.Convert();
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(target, Handle);
FormatInfo format = FormatTable.GetFormatInfo(Info.Format);
SizedInternalFormat internalFormat;
if (format.IsCompressed)
{
internalFormat = (SizedInternalFormat)format.PixelFormat;
}
else
{
internalFormat = (SizedInternalFormat)format.PixelInternalFormat;
}
switch (Info.Target)
{
case Target.Texture1D:
GL.TexStorage1D(
TextureTarget1d.Texture1D,
Info.Levels,
internalFormat,
Info.Width);
break;
case Target.Texture1DArray:
GL.TexStorage2D(
TextureTarget2d.Texture1DArray,
Info.Levels,
internalFormat,
Info.Width,
Info.Height);
break;
case Target.Texture2D:
GL.TexStorage2D(
TextureTarget2d.Texture2D,
Info.Levels,
internalFormat,
Info.Width,
Info.Height);
break;
case Target.Texture2DArray:
GL.TexStorage3D(
TextureTarget3d.Texture2DArray,
Info.Levels,
internalFormat,
Info.Width,
Info.Height,
Info.Depth);
break;
case Target.Texture2DMultisample:
GL.TexStorage2DMultisample(
TextureTargetMultisample2d.Texture2DMultisample,
Info.Samples,
internalFormat,
Info.Width,
Info.Height,
true);
break;
case Target.Texture2DMultisampleArray:
GL.TexStorage3DMultisample(
TextureTargetMultisample3d.Texture2DMultisampleArray,
Info.Samples,
internalFormat,
Info.Width,
Info.Height,
Info.Depth,
true);
break;
case Target.Texture3D:
GL.TexStorage3D(
TextureTarget3d.Texture3D,
Info.Levels,
internalFormat,
Info.Width,
Info.Height,
Info.Depth);
break;
case Target.Cubemap:
GL.TexStorage2D(
TextureTarget2d.TextureCubeMap,
Info.Levels,
internalFormat,
Info.Width,
Info.Height);
break;
case Target.CubemapArray:
GL.TexStorage3D(
(TextureTarget3d)All.TextureCubeMapArray,
Info.Levels,
internalFormat,
Info.Width,
Info.Height,
Info.Depth);
break;
default:
Logger.PrintDebug(LogClass.Gpu, $"Invalid or unsupported texture target: {target}.");
break;
}
}
