public override void BufferSubData(
OpenGLDevice device,
OpenGLDevice.GLenum buffer, bool discard,
OpenGLDevice.IOpenGLBuffer handle,
int elementSizeInBytes, int offsetInBytes,
Array data, int startIndex, int elementCount
)
{
if (discard)
{
device.glBufferData(
OpenGLDevice.GLenum.GL_ELEMENT_ARRAY_BUFFER,
(IntPtr)handle.BufferSize,
IntPtr.Zero,
handle.Dynamic
);
}
GCHandle dataHandle = GCHandle.Alloc(data, GCHandleType.Pinned);
device.glBufferSubData(
OpenGLDevice.GLenum.GL_ELEMENT_ARRAY_BUFFER,
offsetInBytes,
elementSizeInBytes * elementCount,
(IntPtr)(dataHandle.AddrOfPinnedObject().ToInt64() + startIndex * elementSizeInBytes)
);
dataHandle.Free();
}
public abstract void BufferSubData(
OpenGLDevice device,
OpenGLDevice.GLenum buffer, bool discard,
OpenGLDevice.IOpenGLBuffer bufferHandle,
int elementSizeInBytes, int offsetInBytes,
Array data, int startIndex, int elementCount
);
public override void BufferSubData(
OpenGLDevice device,
OpenGLDevice.GLenum buffer, bool discard,
OpenGLDevice.IOpenGLBuffer handle,
int elementSizeInBytes, int offsetInBytes,
Array data, int startIndex, int elementCount
)
{
var gl = GetWebGLContext();
if (discard)
{
gl.bufferData(
(int)buffer,
handle.BufferSize,
(int)handle.Dynamic
);
}
var view = Verbatim.Expression("new Uint8Array($0.buffer, $1, $2)", data, offsetInBytes, elementSizeInBytes * elementCount);
gl.bufferSubData((int)buffer, startIndex, view);
}
public void SetRenderTargets(params RenderTargetBinding[] renderTargets)
{
// Checking for redundant SetRenderTargets...
if (renderTargets == null && RenderTargetCount == 0)
{
return;
}
else if (renderTargets != null && renderTargets.Length == RenderTargetCount)
{
bool isRedundant = true;
for (int i = 0; i < renderTargets.Length; i += 1)
{
if (renderTargets[i].RenderTarget != renderTargetBindings[i].RenderTarget ||
renderTargets[i].CubeMapFace != renderTargetBindings[i].CubeMapFace)
{
isRedundant = false;
}
}
if (isRedundant)
{
return;
}
}
Array.Clear(renderTargetBindings, 0, renderTargetBindings.Length);
if (renderTargets == null || renderTargets.Length == 0)
{
GLDevice.SetRenderTargets(null, null, 0, DepthFormat.None);
RenderTargetCount = 0;
// Set the viewport to the size of the backbuffer.
Viewport = new Viewport(0, 0, PresentationParameters.BackBufferWidth, PresentationParameters.BackBufferHeight);
// Set the scissor rectangle to the size of the backbuffer.
ScissorRectangle = new Rectangle(0, 0, PresentationParameters.BackBufferWidth, PresentationParameters.BackBufferHeight);
if (PresentationParameters.RenderTargetUsage == RenderTargetUsage.DiscardContents)
{
Clear(DiscardColor);
}
}
else
{
uint[] glTarget = new uint[renderTargets.Length];
OpenGLDevice.GLenum[] glTargetFace = new OpenGLDevice.GLenum[renderTargets.Length];
for (int i = 0; i < renderTargets.Length; i += 1)
{
glTarget[i] = renderTargets[i].RenderTarget.texture.Handle;
if (renderTargets[i].RenderTarget is RenderTarget2D)
{
glTargetFace[i] = OpenGLDevice.GLenum.GL_TEXTURE_2D;
}
else
{
glTargetFace[i] = OpenGLDevice.GLenum.GL_TEXTURE_CUBE_MAP_POSITIVE_X + (int)renderTargets[i].CubeMapFace;
}
}
IRenderTarget target = renderTargets[0].RenderTarget as IRenderTarget;
GLDevice.SetRenderTargets(
glTarget,
glTargetFace,
target.DepthStencilBuffer,
target.DepthStencilFormat
);
Array.Copy(renderTargets, renderTargetBindings, renderTargets.Length);
RenderTargetCount = renderTargets.Length;
// Set the viewport to the size of the first render target.
Viewport = new Viewport(0, 0, target.Width, target.Height);
// Set the scissor rectangle to the size of the first render target.
ScissorRectangle = new Rectangle(0, 0, target.Width, target.Height);
if (target.RenderTargetUsage == RenderTargetUsage.DiscardContents)
{
Clear(DiscardColor);
}
}
}
protected void GetGLSurfaceFormat()
{
switch (Format)
{
case SurfaceFormat.Color:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_BYTE;
break;
case SurfaceFormat.Bgr565:
glInternalFormat = OpenGLDevice.GLenum.GL_RGB;
glFormat = OpenGLDevice.GLenum.GL_RGB;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT_5_6_5;
break;
case SurfaceFormat.Bgra4444:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA4;
glFormat = OpenGLDevice.GLenum.GL_BGRA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT_4_4_4_4;
break;
case SurfaceFormat.Bgra5551:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA;
glFormat = OpenGLDevice.GLenum.GL_BGRA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT_5_5_5_1;
break;
case SurfaceFormat.Alpha8:
glInternalFormat = OpenGLDevice.GLenum.GL_LUMINANCE;
glFormat = OpenGLDevice.GLenum.GL_LUMINANCE;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_BYTE;
break;
case SurfaceFormat.Dxt1:
glInternalFormat = OpenGLDevice.GLenum.GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
glFormat = OpenGLDevice.GLenum.GL_COMPRESSED_TEXTURE_FORMATS;
break;
case SurfaceFormat.Dxt3:
glInternalFormat = OpenGLDevice.GLenum.GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
glFormat = OpenGLDevice.GLenum.GL_COMPRESSED_TEXTURE_FORMATS;
break;
case SurfaceFormat.Dxt5:
glInternalFormat = OpenGLDevice.GLenum.GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
glFormat = OpenGLDevice.GLenum.GL_COMPRESSED_TEXTURE_FORMATS;
break;
case SurfaceFormat.Single:
glInternalFormat = OpenGLDevice.GLenum.GL_R32F;
glFormat = OpenGLDevice.GLenum.GL_RED;
glType = OpenGLDevice.GLenum.GL_FLOAT;
break;
case SurfaceFormat.HalfVector2:
glInternalFormat = OpenGLDevice.GLenum.GL_RG16F;
glFormat = OpenGLDevice.GLenum.GL_RG;
glType = OpenGLDevice.GLenum.GL_HALF_FLOAT;
break;
case SurfaceFormat.HdrBlendable:
case SurfaceFormat.HalfVector4:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA16F;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_HALF_FLOAT;
break;
case SurfaceFormat.HalfSingle:
glInternalFormat = OpenGLDevice.GLenum.GL_R16F;
glFormat = OpenGLDevice.GLenum.GL_RED;
glType = OpenGLDevice.GLenum.GL_HALF_FLOAT;
break;
case SurfaceFormat.Vector2:
glInternalFormat = OpenGLDevice.GLenum.GL_RG32F;
glFormat = OpenGLDevice.GLenum.GL_RG;
glType = OpenGLDevice.GLenum.GL_FLOAT;
break;
case SurfaceFormat.Vector4:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA32F;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_FLOAT;
break;
case SurfaceFormat.NormalizedByte2: // Unconfirmed!
glInternalFormat = OpenGLDevice.GLenum.GL_RG8I;
glFormat = OpenGLDevice.GLenum.GL_RG;
glType = OpenGLDevice.GLenum.GL_BYTE;
break;
case SurfaceFormat.NormalizedByte4: // Unconfirmed!
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA8I;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_BYTE;
break;
case SurfaceFormat.Rg32:
glInternalFormat = OpenGLDevice.GLenum.GL_RG16;
glFormat = OpenGLDevice.GLenum.GL_RG;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT;
break;
case SurfaceFormat.Rgba64:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA16;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT;
break;
case SurfaceFormat.Rgba1010102:
glInternalFormat = OpenGLDevice.GLenum.GL_RGB10_A2_EXT;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_INT_10_10_10_2;
break;
default:
throw new NotSupportedException();
}
}
protected void GetGLSurfaceFormat()
{
switch (Format)
{
case SurfaceFormat.Color:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_BYTE;
break;
case SurfaceFormat.Bgr565:
glInternalFormat = OpenGLDevice.GLenum.GL_RGB;
glFormat = OpenGLDevice.GLenum.GL_RGB;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT_5_6_5;
break;
case SurfaceFormat.Bgra4444:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA4;
glFormat = OpenGLDevice.GLenum.GL_BGRA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT_4_4_4_4;
break;
case SurfaceFormat.Bgra5551:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA;
glFormat = OpenGLDevice.GLenum.GL_BGRA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT_5_5_5_1;
break;
case SurfaceFormat.Alpha8:
glInternalFormat = OpenGLDevice.GLenum.GL_LUMINANCE;
glFormat = OpenGLDevice.GLenum.GL_LUMINANCE;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_BYTE;
break;
case SurfaceFormat.Dxt1:
glInternalFormat = OpenGLDevice.GLenum.GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
glFormat = OpenGLDevice.GLenum.GL_COMPRESSED_TEXTURE_FORMATS;
break;
case SurfaceFormat.Dxt3:
glInternalFormat = OpenGLDevice.GLenum.GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
glFormat = OpenGLDevice.GLenum.GL_COMPRESSED_TEXTURE_FORMATS;
break;
case SurfaceFormat.Dxt5:
glInternalFormat = OpenGLDevice.GLenum.GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
glFormat = OpenGLDevice.GLenum.GL_COMPRESSED_TEXTURE_FORMATS;
break;
case SurfaceFormat.Single:
glInternalFormat = OpenGLDevice.GLenum.GL_R32F;
glFormat = OpenGLDevice.GLenum.GL_RED;
glType = OpenGLDevice.GLenum.GL_FLOAT;
break;
case SurfaceFormat.HalfVector2:
glInternalFormat = OpenGLDevice.GLenum.GL_RG16F;
glFormat = OpenGLDevice.GLenum.GL_RG;
glType = OpenGLDevice.GLenum.GL_HALF_FLOAT;
break;
case SurfaceFormat.HdrBlendable:
case SurfaceFormat.HalfVector4:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA16F;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_HALF_FLOAT;
break;
case SurfaceFormat.HalfSingle:
glInternalFormat = OpenGLDevice.GLenum.GL_R16F;
glFormat = OpenGLDevice.GLenum.GL_RED;
glType = OpenGLDevice.GLenum.GL_HALF_FLOAT;
break;
case SurfaceFormat.Vector2:
glInternalFormat = OpenGLDevice.GLenum.GL_RG32F;
glFormat = OpenGLDevice.GLenum.GL_RG;
glType = OpenGLDevice.GLenum.GL_FLOAT;
break;
case SurfaceFormat.Vector4:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA32F;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_FLOAT;
break;
case SurfaceFormat.NormalizedByte2: // Unconfirmed!
glInternalFormat = OpenGLDevice.GLenum.GL_RG8I;
glFormat = OpenGLDevice.GLenum.GL_RG;
glType = OpenGLDevice.GLenum.GL_BYTE;
break;
case SurfaceFormat.NormalizedByte4: // Unconfirmed!
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA8I;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_BYTE;
break;
case SurfaceFormat.Rg32:
glInternalFormat = OpenGLDevice.GLenum.GL_RG16;
glFormat = OpenGLDevice.GLenum.GL_RG;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT;
break;
case SurfaceFormat.Rgba64:
glInternalFormat = OpenGLDevice.GLenum.GL_RGBA16;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_SHORT;
break;
case SurfaceFormat.Rgba1010102:
glInternalFormat = OpenGLDevice.GLenum.GL_RGB10_A2_EXT;
glFormat = OpenGLDevice.GLenum.GL_RGBA;
glType = OpenGLDevice.GLenum.GL_UNSIGNED_INT_10_10_10_2;
break;
default:
throw new NotSupportedException();
}
}