//==============================================================================
VkPipelineColorBlendStateCreateInfo* PipelineImpl::initColorState(
const ColorStateInfo& c, VkPipelineColorBlendStateCreateInfo& ci)
{
ci.logicOpEnable = VK_FALSE;
ci.attachmentCount = c.m_attachmentCount;
for(U i = 0; i < ci.attachmentCount; ++i)
{
VkPipelineColorBlendAttachmentState& out =
const_cast<VkPipelineColorBlendAttachmentState&>(
ci.pAttachments[i]);
const ColorAttachmentStateInfo& in = c.m_attachments[i];
out.blendEnable = !(in.m_srcBlendMethod == BlendMethod::ONE
&& in.m_dstBlendMethod == BlendMethod::ZERO);
out.srcColorBlendFactor = convertBlendMethod(in.m_srcBlendMethod);
out.dstColorBlendFactor = convertBlendMethod(in.m_dstBlendMethod);
out.colorBlendOp = convertBlendFunc(in.m_blendFunction);
out.srcAlphaBlendFactor = out.srcColorBlendFactor;
out.dstAlphaBlendFactor = out.dstColorBlendFactor;
out.alphaBlendOp = out.colorBlendOp;
out.colorWriteMask = convertColorWriteMask(in.m_channelWriteMask);
}
return &ci;
}
void PipelineImpl::initColorState()
{
for(U i = 0; i < m_in.m_color.m_attachmentCount; ++i)
{
Attachment& out = m_cache.m_attachments[i];
const ColorAttachmentStateInfo& in = m_in.m_color.m_attachments[i];
out.m_srcBlendMethod = convertBlendMethod(in.m_srcBlendMethod);
out.m_dstBlendMethod = convertBlendMethod(in.m_dstBlendMethod);
switch(in.m_blendFunction)
{
case BlendFunction::ADD:
out.m_blendFunction = GL_FUNC_ADD;
break;
case BlendFunction::SUBTRACT:
out.m_blendFunction = GL_FUNC_SUBTRACT;
break;
case BlendFunction::REVERSE_SUBTRACT:
out.m_blendFunction = GL_FUNC_REVERSE_SUBTRACT;
break;
case BlendFunction::MIN:
out.m_blendFunction = GL_MIN;
break;
case BlendFunction::MAX:
out.m_blendFunction = GL_MAX;
break;
default:
ANKI_ASSERT(0);
}
out.m_channelWriteMask[0] = (in.m_channelWriteMask & ColorBit::RED) != 0;
out.m_channelWriteMask[1] = (in.m_channelWriteMask & ColorBit::GREEN) != 0;
out.m_channelWriteMask[2] = (in.m_channelWriteMask & ColorBit::BLUE) != 0;
out.m_channelWriteMask[3] = (in.m_channelWriteMask & ColorBit::ALPHA) != 0;
if(!(out.m_srcBlendMethod == GL_ONE && out.m_dstBlendMethod == GL_ZERO))
{
m_blendEnabled = true;
}
}
m_hashes.m_color = computeHash(&m_in.m_color, sizeof(m_in.m_color));
}
