AttachmentColorBlendingMode.h

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#ifndef VULKAN_ATTACHMENTCOLORBLENDINGMODE
#define VULKAN_ATTACHMENTCOLORBLENDINGMODE
 
#include <vulkan/vulkan.h>
 
 
namespace Vulkan::PipelineOptions::RenderPassOptions { class AttachmentColorBlendingMode; enum class PredefinedColorBlendingModes; }
 
 
enum class Vulkan::PipelineOptions::RenderPassOptions::PredefinedColorBlendingModes {
    INVALID, STANDARD //TODO add other modes
};
 
 
class Vulkan::PipelineOptions::RenderPassOptions::AttachmentColorBlendingMode {
public:
 
    AttachmentColorBlendingMode(PredefinedColorBlendingModes predefinedMode= PredefinedColorBlendingModes::INVALID) : colorBlendingMode{} {
        switch (predefinedMode) {
        case PredefinedColorBlendingModes::STANDARD:
            colorBlendingMode.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
            colorBlendingMode.blendEnable = VK_FALSE;
            colorBlendingMode.srcColorBlendFactor = VK_BLEND_FACTOR_ONE;
            colorBlendingMode.dstColorBlendFactor = VK_BLEND_FACTOR_ZERO;
            colorBlendingMode.colorBlendOp = VK_BLEND_OP_ADD;
            colorBlendingMode.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
            colorBlendingMode.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
            colorBlendingMode.alphaBlendOp = VK_BLEND_OP_ADD;
            break;
        default:
            colorBlendingMode.colorWriteMask = VK_COLOR_COMPONENT_FLAG_BITS_MAX_ENUM;
            colorBlendingMode.blendEnable = VK_FALSE;
            colorBlendingMode.srcColorBlendFactor = VK_BLEND_FACTOR_MAX_ENUM;
            colorBlendingMode.dstColorBlendFactor = VK_BLEND_FACTOR_MAX_ENUM;
            colorBlendingMode.colorBlendOp = VK_BLEND_OP_MAX_ENUM;
            colorBlendingMode.srcAlphaBlendFactor = VK_BLEND_FACTOR_MAX_ENUM;
            colorBlendingMode.dstAlphaBlendFactor = VK_BLEND_FACTOR_MAX_ENUM;
            colorBlendingMode.alphaBlendOp = VK_BLEND_OP_MAX_ENUM;
        }
    }
 
 
    AttachmentColorBlendingMode(VkPipelineColorBlendAttachmentState baseColorBlendingMode) : colorBlendingMode{ baseColorBlendingMode } {}
 
 
    const VkPipelineColorBlendAttachmentState& operator+() const {
        return colorBlendingMode;
    }
 
private:
    VkPipelineColorBlendAttachmentState colorBlendingMode;
};
 
#endif