public override void ClearDepthStencil(float depth, byte stencil)
{
VkClearValue clearValue = new VkClearValue {
depthStencil = new VkClearDepthStencilValue(depth, stencil)
};
if (_activeRenderPass != VkRenderPass.Null)
{
VkClearAttachment clearAttachment = new VkClearAttachment
{
aspectMask = VkImageAspectFlags.Depth | VkImageAspectFlags.Stencil,
clearValue = clearValue
};
Texture depthTex = _currentFramebuffer.DepthTarget.Value.Target;
VkClearRect clearRect = new VkClearRect
{
baseArrayLayer = 0,
layerCount = 1,
rect = new VkRect2D(0, 0, depthTex.Width, depthTex.Height)
};
vkCmdClearAttachments(_cb, 1, ref clearAttachment, 1, ref clearRect);
}
else
{
// Queue up the clear value for the next RenderPass.
_depthClearValue = clearValue;
}
}
protected override void ClearDepthStencilCore(float depth, byte stencil)
{
VkClearValue clearValue = new VkClearValue {
depthStencil = new VkClearDepthStencilValue(depth, stencil)
};
if (_activeRenderPass != VkRenderPass.Null)
{
VkImageAspectFlags aspectMask = VkImageAspectFlags.Depth;
if (FormatHelpers.IsStencilFormat(_currentFramebuffer.DepthTarget.Value.Target.Format))
{
aspectMask |= VkImageAspectFlags.Stencil;
}
VkClearAttachment clearAttachment = new VkClearAttachment
{
aspectMask = aspectMask,
clearValue = clearValue
};
Texture depthTex = _currentFramebuffer.DepthTarget.Value.Target;
uint renderableWidth = _currentFramebuffer.RenderableWidth;
uint renderableHeight = _currentFramebuffer.RenderableHeight;
if (renderableWidth > 0 && renderableHeight > 0)
{
VkClearRect clearRect = new VkClearRect
{
baseArrayLayer = 0,
layerCount = 1,
rect = new VkRect2D(0, 0, renderableWidth, renderableHeight)
};
vkCmdClearAttachments(_cb, 1, ref clearAttachment, 1, ref clearRect);
}
}
else
{
// Queue up the clear value for the next RenderPass.
_depthClearValue = clearValue;
}
}
private void BeginCurrentRenderPass()
{
Debug.Assert(_activeRenderPass == VkRenderPass.Null);
Debug.Assert(_currentFramebuffer != null);
_currentFramebufferEverActive = true;
uint attachmentCount = _currentFramebuffer.AttachmentCount;
bool haveAnyAttachments = _currentFramebuffer.ColorTargets.Count > 0 || _currentFramebuffer.DepthTarget != null;
bool haveAllClearValues = _depthClearValue.HasValue || _currentFramebuffer.DepthTarget == null;
bool haveAnyClearValues = _depthClearValue.HasValue;
for (int i = 0; i < _currentFramebuffer.ColorTargets.Count; i++)
{
if (!_validColorClearValues[i])
{
haveAllClearValues = false;
haveAnyClearValues = true;
}
else
{
haveAnyClearValues = true;
}
}
VkRenderPassBeginInfo renderPassBI = VkRenderPassBeginInfo.New();
renderPassBI.renderArea = new VkRect2D(_currentFramebuffer.RenderableWidth, _currentFramebuffer.RenderableHeight);
renderPassBI.framebuffer = _currentFramebuffer.CurrentFramebuffer;
if (!haveAnyAttachments || !haveAllClearValues)
{
renderPassBI.renderPass = _newFramebuffer
? _currentFramebuffer.RenderPassNoClear_Init
: _currentFramebuffer.RenderPassNoClear_Load;
vkCmdBeginRenderPass(_cb, ref renderPassBI, VkSubpassContents.Inline);
_activeRenderPass = renderPassBI.renderPass;
if (haveAnyClearValues)
{
if (_depthClearValue.HasValue)
{
ClearDepthStencil(_depthClearValue.Value.depthStencil.depth, (byte)_depthClearValue.Value.depthStencil.stencil);
_depthClearValue = null;
}
for (uint i = 0; i < _currentFramebuffer.ColorTargets.Count; i++)
{
if (_validColorClearValues[i])
{
_validColorClearValues[i] = false;
VkClearValue vkClearValue = _clearValues[i];
RgbaFloat clearColor = new RgbaFloat(
vkClearValue.color.float32_0,
vkClearValue.color.float32_1,
vkClearValue.color.float32_2,
vkClearValue.color.float32_3);
ClearColorTarget(i, clearColor);
}
}
}
}
else
{
// We have clear values for every attachment.
renderPassBI.renderPass = _currentFramebuffer.RenderPassClear;
fixed(VkClearValue *clearValuesPtr = &_clearValues[0])
{
renderPassBI.clearValueCount = attachmentCount;
renderPassBI.pClearValues = clearValuesPtr;
if (_depthClearValue.HasValue)
{
_clearValues[_currentFramebuffer.ColorTargets.Count] = _depthClearValue.Value;
_depthClearValue = null;
}
vkCmdBeginRenderPass(_cb, ref renderPassBI, VkSubpassContents.Inline);
_activeRenderPass = _currentFramebuffer.RenderPassClear;
Util.ClearArray(_validColorClearValues);
}
}
_newFramebuffer = false;
}
private void BeginCurrentRenderPass()
{
Debug.Assert(_activeRenderPass == VkRenderPass.Null);
Debug.Assert(_currentFramebuffer != null);
_currentFramebufferEverActive = true;
uint attachmentCount = _currentFramebuffer.AttachmentCount;
bool haveAnyAttachments = _framebuffer.ColorTargets.Count > 0 || _framebuffer.DepthTarget != null;
bool haveAllClearValues = _depthClearValue.HasValue || _framebuffer.DepthTarget == null;
bool haveAnyClearValues = _depthClearValue.HasValue;
for (int i = 0; i < _currentFramebuffer.ColorTargets.Count; i++)
{
if (!_validColorClearValues[i])
{
haveAllClearValues = false;
haveAnyClearValues = true;
}
else
{
haveAnyClearValues = true;
}
}
VkRenderPassBeginInfo renderPassBI = VkRenderPassBeginInfo.New();
renderPassBI.renderArea = new VkRect2D(_currentFramebuffer.RenderableWidth, _currentFramebuffer.RenderableHeight);
renderPassBI.framebuffer = _currentFramebuffer.CurrentFramebuffer;
if (!haveAnyAttachments || !haveAllClearValues)
{
renderPassBI.renderPass = _currentFramebuffer.RenderPassNoClear;
vkCmdBeginRenderPass(_cb, ref renderPassBI, VkSubpassContents.Inline);
_activeRenderPass = _currentFramebuffer.RenderPassNoClear;
if (haveAnyClearValues)
{
if (_depthClearValue.HasValue)
{
ClearDepthStencil(_depthClearValue.Value.depthStencil.depth, (byte)_depthClearValue.Value.depthStencil.stencil);
_depthClearValue = null;
}
for (uint i = 0; i < _currentFramebuffer.ColorTargets.Count; i++)
{
if (_validColorClearValues[i])
{
_validColorClearValues[i] = false;
VkClearValue vkClearValue = _clearValues[i];
RgbaFloat clearColor = new RgbaFloat(
vkClearValue.color.float32_0,
vkClearValue.color.float32_1,
vkClearValue.color.float32_2,
vkClearValue.color.float32_3);
ClearColorTarget(i, clearColor);
}
}
}
}
else
{
// We have clear values for every attachment.
renderPassBI.renderPass = _currentFramebuffer.RenderPassClear;
fixed(VkClearValue *clearValuesPtr = &_clearValues[0])
{
renderPassBI.clearValueCount = attachmentCount;
renderPassBI.pClearValues = clearValuesPtr;
if (_depthClearValue.HasValue)
{
_clearValues[_currentFramebuffer.ColorTargets.Count] = _depthClearValue.Value;
}
vkCmdBeginRenderPass(_cb, ref renderPassBI, VkSubpassContents.Inline);
_activeRenderPass = _currentFramebuffer.RenderPassClear;
Util.ClearArray(_validColorClearValues);
}
}
// Set new image layouts
foreach (FramebufferAttachment colorTarget in _currentFramebuffer.ColorTargets)
{
VkTexture vkTex = Util.AssertSubtype <Texture, VkTexture>(colorTarget.Target);
VkImageLayout layout = (vkTex.Usage & TextureUsage.Sampled) != 0
? VkImageLayout.ShaderReadOnlyOptimal
: VkImageLayout.ColorAttachmentOptimal;
vkTex.SetImageLayout(colorTarget.ArrayLayer, layout);
}
if (_currentFramebuffer.DepthTarget != null)
{
VkTexture vkDepthTex = Util.AssertSubtype <Texture, VkTexture>(_currentFramebuffer.DepthTarget.Value.Target);
VkImageLayout layout = (vkDepthTex.Usage & TextureUsage.Sampled) != 0
? VkImageLayout.ShaderReadOnlyOptimal
: VkImageLayout.DepthStencilAttachmentOptimal;
vkDepthTex.SetImageLayout(_currentFramebuffer.DepthTarget.Value.ArrayLayer, layout);
}
}