From 09cfc2ce8057902a7366be49cded29141e16f631 Mon Sep 17 00:00:00 2001
From: Matthew <matthew@sleepy.day>
Date: Sun, 24 Aug 2025 14:49:57 +1000
Subject: [PATCH] add blend info to gfx pipeline struct & add info messages for
 debug printf

---
 vulkan.d | 66 ++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 57 insertions(+), 9 deletions(-)

diff --git a/vulkan.d b/vulkan.d
index f99ee9c..3ab44c4 100644
--- a/vulkan.d
+++ b/vulkan.d
@@ -242,6 +242,42 @@ enum PipelineType : int
 
 alias PT = PipelineType;
 
+enum BlendFactor : VkBlendFactor
+{
+	Zero = VK_BLEND_FACTOR_ZERO,
+	One = VK_BLEND_FACTOR_ONE,
+	SrcColor = VK_BLEND_FACTOR_SRC_COLOR,
+	OneMinusSrcColor = VK_BLEND_FACTOR_ONE_MINUS_SRC_COLOR,
+	DstColor = VK_BLEND_FACTOR_DST_COLOR,
+	OneMinusDstColor = VK_BLEND_FACTOR_ONE_MINUS_DST_COLOR,
+	SrcAlpha = VK_BLEND_FACTOR_SRC_ALPHA,
+	OneMinusSrcAlpha = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
+	DstAlpha = VK_BLEND_FACTOR_DST_ALPHA,
+  OneMinusDstAlpha = VK_BLEND_FACTOR_ONE_MINUS_DST_ALPHA,
+  ConstColor = VK_BLEND_FACTOR_CONSTANT_COLOR,
+	OneMinusConstColor = VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_COLOR,
+	ConstAlpha = VK_BLEND_FACTOR_CONSTANT_ALPHA,
+	OneMinusConstAlpha = VK_BLEND_FACTOR_ONE_MINUS_CONSTANT_ALPHA,
+	SrcAlphaSaturate = VK_BLEND_FACTOR_SRC_ALPHA_SATURATE,
+	Src1Color = VK_BLEND_FACTOR_SRC1_COLOR,
+	OneMinusSrc1Color = VK_BLEND_FACTOR_ONE_MINUS_SRC1_COLOR,
+	Src1Alpha = VK_BLEND_FACTOR_SRC1_ALPHA,
+	OneMinusSrc1Alpha = VK_BLEND_FACTOR_ONE_MINUS_SRC1_ALPHA,
+}
+
+alias BF = BlendFactor;
+
+enum BlendOp : VkBlendOp
+{
+	Add = VK_BLEND_OP_ADD,
+	Sub = VK_BLEND_OP_SUBTRACT,
+	ReverseSub = VK_BLEND_OP_REVERSE_SUBTRACT,
+	Min = VK_BLEND_OP_MIN,
+	Max = VK_BLEND_OP_MAX,
+}
+
+alias BO = BlendOp;
+
 struct Specialization
 {
 	u64					size;
@@ -261,6 +297,12 @@ struct GfxPipelineInfo
 	bool					 self_dependency;
 	PipelineLayout layout;
 	FrontFace      front_face;
+	VkBlendFactor  src_color;
+	VkBlendFactor  dst_color;
+	VkBlendOp      color_op;
+	VkBlendFactor  src_alpha;
+	VkBlendFactor  dst_alpha;
+	VkBlendOp      alpha_op;
 }
 
 struct CompPipelineInfo
@@ -1765,12 +1807,12 @@ CreateGraphicsPipeline(Vulkan* vk, Pipeline* pipeline_handle, GfxPipelineInfo* b
 	VkPipelineColorBlendAttachmentState blend_state = {
 		colorWriteMask: VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT,
 		blendEnable: VK_TRUE,
-		srcColorBlendFactor: VK_BLEND_FACTOR_SRC_ALPHA,
-		dstColorBlendFactor: VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
-		colorBlendOp: VK_BLEND_OP_ADD,
-		srcAlphaBlendFactor: VK_BLEND_FACTOR_SRC_ALPHA,
-		dstAlphaBlendFactor: VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
-		alphaBlendOp: VK_BLEND_OP_ADD,
+		srcColorBlendFactor: build_info.src_color,
+		dstColorBlendFactor: build_info.dst_color,
+		colorBlendOp: build_info.color_op,
+		srcAlphaBlendFactor: build_info.src_alpha,
+		dstAlphaBlendFactor: build_info.dst_alpha,
+		alphaBlendOp: build_info.alpha_op,
 	};
 
 	VkPipelineColorBlendStateCreateInfo blend_info = {
@@ -3293,10 +3335,16 @@ EnableVLayers(Vulkan* vk)
 
 		if (g_VLAYER_SUPPORT)
 		{
+			VkDebugUtilsMessageSeverityFlagBitsEXT severity_flags = VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT |
+																															VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT;
+			if (g_DEBUG_PRINTF)
+			{
+				severity_flags |= VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT;
+			}
+
 			VkDebugUtilsMessengerCreateInfoEXT info = {
 				sType: VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT,
-				messageSeverity: VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT |
-												 VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT,
+				messageSeverity: severity_flags,
 				messageType: VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT		|
 										 VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT |
 										 VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT,
@@ -3340,4 +3388,4 @@ PrintShaderDisassembly(Vulkan* vk, Pipeline pipeline_id, VkShaderStageFlagBits s
 			}
 		}
 	}
-}
+