/// <summary>
/// Initializes a new instance of the <see cref="RenderTargetCube"/> class.
/// </summary>
/// <param name="graphicsDevice">The graphics device.</param>
/// <param name="size">The width and height of a texture cube face in pixels.</param>
/// <param name="mipMap">
/// <see langword="true"/> to generate a full mipmap chain; otherwise <see langword="false"/>.
/// </param>
/// <param name="preferredFormat">The preferred format of the surface.</param>
/// <param name="preferredDepthFormat">The preferred format of the depth-stencil buffer.</param>
/// <param name="preferredMultiSampleCount">The preferred number of multisample locations.</param>
/// <param name="usage">The usage mode of the render target.</param>
public RenderTargetCube(
GraphicsDevice graphicsDevice,
int size,
bool mipMap,
SurfaceFormat preferredFormat,
DepthFormat preferredDepthFormat,
int preferredMultiSampleCount,
RenderTargetUsage usage
) : base(
graphicsDevice,
size,
mipMap,
preferredFormat
)
{
DepthStencilFormat = preferredDepthFormat;
MultiSampleCount = Math.Min(
MathHelper.ClosestMSAAPower(preferredMultiSampleCount),
graphicsDevice.GLDevice.MaxMultiSampleCount
);
RenderTargetUsage = usage;
// If we don't need a depth buffer then we're done.
if (preferredDepthFormat == DepthFormat.None)
{
return;
}
glDepthStencilBuffer = graphicsDevice.GLDevice.GenRenderbuffer(
size,
size,
preferredDepthFormat
);
}
public void SetRenderTargets(
RenderTargetBinding[] renderTargets,
IGLRenderbuffer renderbuffer,
DepthFormat depthFormat
)
{
ForceToMainThread(() =>
{
GLDevice.SetRenderTargets(
renderTargets,
renderbuffer,
depthFormat
);
}); // End ForceToMainThread
}
public RenderTarget2D(
GraphicsDevice graphicsDevice,
int width,
int height,
bool mipMap,
SurfaceFormat preferredFormat,
DepthFormat preferredDepthFormat,
int preferredMultiSampleCount,
RenderTargetUsage usage
) : base(
graphicsDevice,
width,
height,
mipMap,
preferredFormat
)
{
DepthStencilFormat = preferredDepthFormat;
MultiSampleCount = Math.Min(
MathHelper.ClosestMSAAPower(preferredMultiSampleCount),
graphicsDevice.GLDevice.MaxMultiSampleCount
);
RenderTargetUsage = usage;
if (MultiSampleCount > 0)
{
glColorBuffer = graphicsDevice.GLDevice.GenRenderbuffer(
Width,
Height,
Format,
MultiSampleCount,
texture
);
}
// If we don't need a depth buffer then we're done.
if (DepthStencilFormat == DepthFormat.None)
{
return;
}
glDepthStencilBuffer = graphicsDevice.GLDevice.GenRenderbuffer(
Width,
Height,
DepthStencilFormat,
MultiSampleCount
);
}
public IGLRenderbuffer GenRenderbuffer(
int width,
int height,
DepthFormat format,
int multiSampleCount
)
{
IGLRenderbuffer result = null;
ForceToMainThread(() =>
{
result = GLDevice.GenRenderbuffer(
width,
height,
format,
multiSampleCount
);
}); // End ForceToMainThread
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="RenderTargetCube"/> class.
/// </summary>
/// <param name="graphicsDevice">The graphics device.</param>
/// <param name="size">The width and height of a texture cube face in pixels.</param>
/// <param name="mipMap">
/// <see langword="true"/> to generate a full mipmap chain; otherwise <see langword="false"/>.
/// </param>
/// <param name="preferredFormat">The preferred format of the surface.</param>
/// <param name="preferredDepthFormat">The preferred format of the depth-stencil buffer.</param>
/// <param name="preferredMultiSampleCount">The preferred number of multisample locations.</param>
/// <param name="usage">The usage mode of the render target.</param>
public RenderTargetCube(
GraphicsDevice graphicsDevice,
int size,
bool mipMap,
SurfaceFormat preferredFormat,
DepthFormat preferredDepthFormat,
int preferredMultiSampleCount,
RenderTargetUsage usage
) : base(
graphicsDevice,
size,
mipMap,
preferredFormat
) {
DepthStencilFormat = preferredDepthFormat;
MultiSampleCount = Math.Min(
MathHelper.ClosestMSAAPower(preferredMultiSampleCount),
graphicsDevice.GLDevice.MaxMultiSampleCount
);
RenderTargetUsage = usage;
// If we don't need a depth buffer then we're done.
if (preferredDepthFormat == DepthFormat.None)
{
return;
}
glDepthStencilBuffer = graphicsDevice.GLDevice.GenRenderbuffer(
size,
size,
preferredDepthFormat
);
}
public void SetRenderTargets(
RenderTargetBinding[] renderTargets,
IGLRenderbuffer renderbuffer,
DepthFormat depthFormat
) {
// Bind the right framebuffer, if needed
if (renderTargets == null)
{
BindFramebuffer(
(Backbuffer is OpenGLBackbuffer) ?
(Backbuffer as OpenGLBackbuffer).Handle :
0
);
flipViewport = 1;
return;
}
else
{
BindFramebuffer(targetFramebuffer);
flipViewport = -1;
}
int i;
uint[] attachments = new uint[renderTargets.Length];
GLenum[] attachmentTypes = new GLenum[renderTargets.Length];
for (i = 0; i < renderTargets.Length; i += 1)
{
IGLRenderbuffer colorBuffer = (renderTargets[i].RenderTarget as IRenderTarget).ColorBuffer;
if (colorBuffer != null)
{
attachments[i] = (colorBuffer as OpenGLRenderbuffer).Handle;
attachmentTypes[i] = GLenum.GL_RENDERBUFFER;
}
else
{
attachments[i] = (renderTargets[i].RenderTarget.texture as OpenGLTexture).Handle;
if (renderTargets[i].RenderTarget is RenderTarget2D)
{
attachmentTypes[i] = GLenum.GL_TEXTURE_2D;
}
else
{
attachmentTypes[i] = GLenum.GL_TEXTURE_CUBE_MAP_POSITIVE_X + (int) renderTargets[i].CubeMapFace;
}
}
}
// Update the color attachments, DrawBuffers state
for (i = 0; i < attachments.Length; i += 1)
{
if (attachments[i] != currentAttachments[i])
{
if (currentAttachments[i] != 0)
{
if ( attachmentTypes[i] != GLenum.GL_RENDERBUFFER &&
currentAttachmentTypes[i] == GLenum.GL_RENDERBUFFER )
{
glFramebufferRenderbuffer(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_COLOR_ATTACHMENT0 + i,
GLenum.GL_RENDERBUFFER,
0
);
}
else if ( attachmentTypes[i] == GLenum.GL_RENDERBUFFER &&
currentAttachmentTypes[i] != GLenum.GL_RENDERBUFFER )
{
glFramebufferTexture2D(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_COLOR_ATTACHMENT0 + i,
currentAttachmentTypes[i],
0,
0
);
}
}
if (attachmentTypes[i] == GLenum.GL_RENDERBUFFER)
{
glFramebufferRenderbuffer(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_COLOR_ATTACHMENT0 + i,
GLenum.GL_RENDERBUFFER,
attachments[i]
);
}
else
{
glFramebufferTexture2D(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_COLOR_ATTACHMENT0 + i,
attachmentTypes[i],
attachments[i],
0
);
}
currentAttachments[i] = attachments[i];
currentAttachmentTypes[i] = attachmentTypes[i];
}
else if (attachmentTypes[i] != currentAttachmentTypes[i])
{
// Texture cube face change!
glFramebufferTexture2D(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_COLOR_ATTACHMENT0 + i,
attachmentTypes[i],
attachments[i],
0
);
currentAttachmentTypes[i] = attachmentTypes[i];
}
}
while (i < currentAttachments.Length)
{
if (currentAttachments[i] != 0)
{
if (currentAttachmentTypes[i] == GLenum.GL_RENDERBUFFER)
{
glFramebufferRenderbuffer(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_COLOR_ATTACHMENT0 + i,
GLenum.GL_RENDERBUFFER,
0
);
}
else
{
glFramebufferTexture2D(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_COLOR_ATTACHMENT0 + i,
currentAttachmentTypes[i],
0,
0
);
}
currentAttachments[i] = 0;
currentAttachmentTypes[i] = GLenum.GL_TEXTURE_2D;
}
i += 1;
}
if (attachments.Length != currentDrawBuffers)
{
glDrawBuffers(attachments.Length, drawBuffersArray);
currentDrawBuffers = attachments.Length;
}
// Update the depth/stencil attachment
/* FIXME: Notice that we do separate attach calls for the stencil.
* We _should_ be able to do a single attach for depthstencil, but
* some drivers (like Mesa) cannot into GL_DEPTH_STENCIL_ATTACHMENT.
* Use XNAToGL.DepthStencilAttachment when this isn't a problem.
* -flibit
*/
uint handle;
if (renderbuffer == null)
{
handle = 0;
}
else
{
handle = (renderbuffer as OpenGLRenderbuffer).Handle;
}
if (handle != currentRenderbuffer)
{
if (currentDepthStencilFormat == DepthFormat.Depth24Stencil8)
{
glFramebufferRenderbuffer(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_STENCIL_ATTACHMENT,
GLenum.GL_RENDERBUFFER,
0
);
}
currentDepthStencilFormat = depthFormat;
glFramebufferRenderbuffer(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_DEPTH_ATTACHMENT,
GLenum.GL_RENDERBUFFER,
handle
);
if (currentDepthStencilFormat == DepthFormat.Depth24Stencil8)
{
glFramebufferRenderbuffer(
GLenum.GL_FRAMEBUFFER,
GLenum.GL_STENCIL_ATTACHMENT,
GLenum.GL_RENDERBUFFER,
handle
);
}
currentRenderbuffer = handle;
}
}
private void DeleteRenderbuffer(IGLRenderbuffer renderbuffer)
{
uint handle = (renderbuffer as OpenGLRenderbuffer).Handle;
if (handle == currentRenderbuffer)
{
// Force a renderbuffer update, this no longer exists!
currentRenderbuffer = uint.MaxValue;
}
glDeleteRenderbuffers(1, ref handle);
}
public void AddDisposeRenderbuffer(IGLRenderbuffer renderbuffer)
{
if (IsOnMainThread())
{
DeleteRenderbuffer(renderbuffer);
}
else
{
GCDepthBuffers.Enqueue(renderbuffer);
}
}
public void AddDisposeRenderbuffer(IGLRenderbuffer renderbuffer)
{
GCRenderbuffers.Enqueue(renderbuffer);
}
public RenderTarget2D(
GraphicsDevice graphicsDevice,
int width,
int height,
bool mipMap,
SurfaceFormat preferredFormat,
DepthFormat preferredDepthFormat,
int preferredMultiSampleCount,
RenderTargetUsage usage
) : base(
graphicsDevice,
width,
height,
mipMap,
preferredFormat
) {
DepthStencilFormat = preferredDepthFormat;
MultiSampleCount = Math.Min(
MathHelper.ClosestMSAAPower(preferredMultiSampleCount),
graphicsDevice.GLDevice.MaxMultiSampleCount
);
RenderTargetUsage = usage;
if (MultiSampleCount > 0)
{
glColorBuffer = graphicsDevice.GLDevice.GenRenderbuffer(
width,
height,
Format,
MultiSampleCount
);
}
// If we don't need a depth buffer then we're done.
if (preferredDepthFormat == DepthFormat.None)
{
return;
}
glDepthStencilBuffer = graphicsDevice.GLDevice.GenRenderbuffer(
width,
height,
preferredDepthFormat,
MultiSampleCount
);
}
