Drawing a textured quad

Added new assets
Loaded all texture assets into game state
Loaded the basic pipeline
Setup a hard-coded quad to test drawing
Created a very jank vertex struct
Added ReadEntireFile for filesystem
Added getting file size from file handle
Added a descriptor pool to each in flight frame
Changed Vk_BufferCreate to handle multiple uses
Added shader building to the windows.bat build script

code/first.c

@@ -29,9 +29,33 @@ int main(int argc, char **argv) {
 
 	Vk_Setup(window);
 
+	G_State *game = 0;
+	{
+		M_Arena *arena = M_ArenaAlloc(GB(64), .initial = MB(4));
+		game = M_ArenaPush(arena, G_State);
 
-	M_Arena *garena = M_ArenaAlloc(GB(64), .initial = MB(4));
-	G_ImagesLoad(garena);
+		game->arena = arena;
+
+		G_ImagesLoad(game);
+		G_PipelinesLoad(game);
+
+		Vk_Buffer *vbo = &game->vbo;
+		vbo->size         = KB(4096);
+		vbo->usage        = VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
+		vbo->host_visible = true;
+
+		Vk_BufferCreate(vbo);
+
+		G_Vertex *vertices = cast(G_Vertex *) vbo->data;
+
+		vertices[0] = (G_Vertex) { -0.25f, -0.25f, 1.0f, 1.0f, 0.0f, 0.0f, 0xFFFFFFFF, 0};
+		vertices[1] = (G_Vertex) {  0.25f, -0.25f, 1.0f, 1.0f, 1.0f, 0.0f, 0xFFFFFFFF, 0};
+		vertices[2] = (G_Vertex) { -0.25f,  0.25f, 1.0f, 1.0f, 0.0f, 1.0f, 0xFFFFFFFF, 0};
+
+		vertices[3] = (G_Vertex) {  0.25f, -0.25f, 1.0f, 1.0f, 1.0f, 0.0f, 0xFFFFFFFF, 0};
+		vertices[4] = (G_Vertex) {  0.25f,  0.25f, 1.0f, 1.0f, 1.0f, 1.0f, 0xFFFFFFFF, 0};
+		vertices[5] = (G_Vertex) { -0.25f,  0.25f, 1.0f, 1.0f, 0.0f, 1.0f, 0xFFFFFFFF, 0};
+	}
 
 	bool running = true;
 	while (running) {
@@ -69,6 +93,59 @@ int main(int argc, char **argv) {
 
 		vk.CmdBeginRendering(cmd, &rendering_info);
 
+		Vk_Pipeline *basic = &game->pipelines[0];
+
+		VkDescriptorSet set;
+		VkDescriptorSetAllocateInfo alloc_info = { 0 };
+		alloc_info.sType              = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
+		alloc_info.descriptorPool     = frame->descriptors;
+		alloc_info.descriptorSetCount = 1;
+		alloc_info.pSetLayouts        = &basic->layout.set;
+
+		vk.AllocateDescriptorSets(vk.device, &alloc_info, &set);
+
+		// 'update' the descriptor sets for binding
+		{
+			VkWriteDescriptorSet writes[2] = { 0 };
+
+			VkDescriptorBufferInfo vbo_info = { 0 };
+			vbo_info.buffer = game->vbo.handle;
+			vbo_info.offset = 0;
+			vbo_info.range  = 256;
+
+			VkDescriptorImageInfo image_info = { 0 };
+			image_info.imageView   = game->images[6].image.view;
+			image_info.sampler     = vk.sampler;
+			image_info.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
+
+			writes[0].sType           = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+			writes[0].dstSet          = set;
+			writes[0].dstBinding      = 0;
+			writes[0].descriptorCount = 1;
+			writes[0].descriptorType  = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
+			writes[0].pBufferInfo     = &vbo_info;
+
+			writes[1].sType           = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+			writes[1].dstSet          = set;
+			writes[1].dstBinding      = 1;
+			writes[1].descriptorCount = 1;
+			writes[1].descriptorType  = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+			writes[1].pImageInfo      = &image_info;
+
+			vk.UpdateDescriptorSets(vk.device, ArraySize(writes), writes, 0, 0);
+		}
+
+		vk.CmdBindPipeline(cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, basic->handle);
+		vk.CmdBindDescriptorSets(cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, basic->layout.pipeline, 0, 1, &set, 0, 0);
+
+		VkViewport viewport = { 0, 0, (F32) w, (F32) h, 0.0f, 1.0f };
+		VkRect2D   scissor  = { 0, 0, w, h };
+
+		vk.CmdSetViewport(cmd, 0, 1, &viewport);
+		vk.CmdSetScissor(cmd, 0, 1, &scissor);
+
+		vk.CmdDraw(cmd, 6, 1, 0, 0);
+
 		vk.CmdEndRendering(cmd);
 
 		Vk_FrameEnd();

code/game/core.c

@@ -1,9 +1,14 @@
 
-void G_ImagesLoad(M_Arena *arena) {
-	M_TempScope(1, &arena) {
+void G_ImagesLoad(G_State *game) {
+	M_TempScope(0, 0) {
 		FS_List assets = FS_PathList(temp.arena, S("assets"));
 
-		Vk_Buffer staging = Vk_BufferCreate(MB(256), true  /* host_visible */);
+		Vk_Buffer staging = { 0 };
+		staging.size         = MB(256);
+		staging.usage        = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
+		staging.host_visible = true;
+
+		Vk_BufferCreate(&staging);
 
 		U8 *base   = staging.data;
 		U64 offset = 0;
@@ -14,12 +19,16 @@ void G_ImagesLoad(M_Arena *arena) {
 
 		for (FS_Entry *it = assets.first; it != 0; it = it->next) {
 			if (Str8_EndsWith(it->basename, S("png"))) {
+				if (Str8_Equal(it->basename, S("saloon_ext.png"), 0)) {
+						printf("IMAGE SALOON == %d\n", n_images);
+				}
+
 				n_images += 1;
 			}
 		}
 
 		VkBufferImageCopy copy = { 0 };
-		G_Image *images = M_ArenaPush(arena, G_Image, .count = n_images);
+		game->images = M_ArenaPush(game->arena, G_Image, .count = n_images);
 		n_images = 0;
 
 		// Image upload is sbi_load -> copy to staging -> upload to gpu texture
@@ -30,7 +39,7 @@ void G_ImagesLoad(M_Arena *arena) {
 				stbi_uc *data = stbi_load((const char *) it->path.data, &w, &h, &c, 4);
 
 				if (data) {
-					G_Image *image = &images[n_images];
+					G_Image *image = &game->images[n_images];
 
 					U64 image_sz = 4 * w * h;
 
@@ -56,7 +65,7 @@ void G_ImagesLoad(M_Arena *arena) {
 
 					n_images += 1;
 
-					image->name = Str8_Copy(arena, Str8_RemoveAfterLast(it->basename, '.'));
+					image->name = Str8_Copy(game->arena, Str8_RemoveAfterLast(it->basename, '.'));
 
 					image->image.width  = w;
 					image->image.height = h;
@@ -117,3 +126,70 @@ void G_ImagesLoad(M_Arena *arena) {
 		Vk_CommandBufferSubmit(cmds, true /* wait */);
 	}
 }
+
+void G_PipelinesLoad(G_State *game) {
+	game->pipelines = M_ArenaPush(game->arena, Vk_Pipeline, .count = 1);
+
+	Vk_Pipeline *basic = &game->pipelines[0];
+
+	VkShaderModule vshader = 0, fshader = 0;
+	M_TempScope(0, 0) {
+		Str8 vshader_code = FS_ReadEntireFile(temp.arena, S("assets/shaders/basic.vert.spv"));
+		Str8 fshader_code = FS_ReadEntireFile(temp.arena, S("assets/shaders/basic.frag.spv"));
+
+		VkShaderModuleCreateInfo create_info = { 0 };
+		create_info.sType    = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
+		create_info.pCode    = (U32 *) vshader_code.data;
+		create_info.codeSize = vshader_code.count;
+
+		vk.CreateShaderModule(vk.device, &create_info, 0, &vshader);
+
+		create_info.pCode    = (U32 *) fshader_code.data;
+		create_info.codeSize = fshader_code.count;
+
+		vk.CreateShaderModule(vk.device, &create_info, 0, &fshader);
+	}
+
+	// Create pipeline layout, its insane what you have to do for this because the ALREADY KNOW
+	// all of this information
+	{
+		VkDescriptorSetLayoutBinding bindings[2] = { 0 };
+
+		bindings[0].binding         = 0;
+		bindings[0].descriptorType  = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
+		bindings[0].descriptorCount = 1;
+		bindings[0].stageFlags      = VK_SHADER_STAGE_VERTEX_BIT;
+
+		bindings[1].binding         = 1;
+		bindings[1].descriptorType  = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+		bindings[1].descriptorCount = 1;
+		bindings[1].stageFlags      = VK_SHADER_STAGE_FRAGMENT_BIT;
+
+		VkDescriptorSetLayoutCreateInfo set_info = { 0 };
+		set_info.sType        = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
+		set_info.bindingCount = 2;
+		set_info.pBindings    = bindings;
+
+		vk.CreateDescriptorSetLayout(vk.device, &set_info, 0, &basic->layout.set);
+
+		VkPipelineLayoutCreateInfo layout_create = { 0 };
+		layout_create.sType          = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
+		layout_create.setLayoutCount = 1;
+		layout_create.pSetLayouts    = &basic->layout.set;
+
+		vk.CreatePipelineLayout(vk.device, &layout_create, 0, &basic->layout.pipeline);
+	}
+
+	basic->targets.items[0] = vk.swapchain.format.format;
+	basic->targets.count    = 1;
+
+	basic->shaders.count = 2;
+
+	basic->shaders.items[0].stage  = VK_SHADER_STAGE_VERTEX_BIT;
+	basic->shaders.items[0].handle = vshader;
+
+	basic->shaders.items[1].stage  = VK_SHADER_STAGE_FRAGMENT_BIT;
+	basic->shaders.items[1].handle = fshader;
+
+	Vk_PipelineCreate(basic);
+}

code/game/core.h

@@ -1,16 +1,34 @@
 #if !defined(LD_GAME_CORE_H_)
 #define LD_GAME_CORE_H_
 
-typedef struct G_Image G_Image;
-struct G_Image {
-	Vk_Image image;
-
-	Str8 name;
-
-	U32 width;
-	U32 height;
+typedef struct G_Vertex G_Vertex;
+struct G_Vertex {
+	F32 x, y, z, w;
+	F32 u, v;
+	U32 c;
+	U32 pad;
 };
 
-function void G_ImagesLoad(M_Arena *arena);
+typedef struct G_Image G_Image;
+struct G_Image {
+	Str8 name;
+	Vk_Image image;
+};
+
+typedef struct G_State G_State;
+struct G_State {
+	M_Arena *arena;
+
+	U32 n_images;
+	G_Image *images;
+
+	U32 n_pipelines;
+	Vk_Pipeline *pipelines;
+
+	Vk_Buffer vbo;
+};
+
+function void G_ImagesLoad(G_State *game);
+function void G_PipelinesLoad(G_State *game);
 
 #endif  // LD_GAME_CORE_H_

code/os/core.c

@@ -1,3 +1,19 @@
 #if OS_WINDOWS
 	#include "impl/windows/core.c"
 #endif
+
+
+Str8 FS_ReadEntireFile(M_Arena *arena, Str8 path) {
+	Str8 result = { 0 };
+
+	OS_Handle file = FS_FileOpen(path, FS_ACCESS_READ);
+	if (file.v[0]) {
+		result.count = FS_FileSize(file);
+		result.data  = M_ArenaPush(arena, U8, .count = result.count);
+
+		FS_FileRead(file, result.data, result.count, 0);
+		FS_FileClose(file);
+	}
+
+	return result;
+}

code/os/filesystem.h

@@ -13,6 +13,8 @@ function void      FS_FileClose(OS_Handle file);
 function void FS_FileRead(OS_Handle file, void *ptr, U64 size, U64 offset);
 function void FS_FileWrite(OS_Handle file, void *ptr, U64 size, U64 offset);
 
+function U64 FS_FileSize(OS_Handle file);
+
 typedef U32 FS_EntryType;
 enum {
 	FS_ENTRY_TYPE_FILE = 0,
@@ -42,4 +44,6 @@ struct FS_List {
 
 function FS_List FS_PathList(M_Arena *arena, Str8 path);
 
+function Str8 FS_ReadEntireFile(M_Arena *arena, Str8 path);
+
 #endif  // LD_OS_FILESYSTEM_H_

code/os/impl/windows/filesystem.c

@@ -83,6 +83,19 @@ void FS_FileWrite(OS_Handle file, void *ptr, U64 size, U64 offset) {
 	}
 }
 
+U64 FS_FileSize(OS_Handle file) {
+	U64 result = 0;
+	HANDLE hFile = cast(HANDLE) file.v[0];
+	if (hFile) {
+		DWORD dwLow, dwHigh;
+		dwLow = GetFileSize(hFile, &dwHigh);
+
+		result = ((U64) dwHigh << 32) | ((U64) dwLow);
+	}
+
+	return result;
+}
+
 FS_List FS_PathList(M_Arena *arena, Str8 path) {
 	FS_List result = { 0 };
 

code/vulkan/core.c

@@ -354,6 +354,23 @@ bool Vk_Setup(SDL_Window *window) {
 			err = Min(vk.CreateFence(vk.device, &fence, 0, &frame->scratch[s].fence), err);
 		}
 
+		// Descriptor pool
+		VkDescriptorPoolSize pool_sizes[2] = { 0 };
+
+		pool_sizes[0].type            = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+		pool_sizes[0].descriptorCount = 2048;
+
+		pool_sizes[1].type            = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
+		pool_sizes[1].descriptorCount = 2048;
+
+		VkDescriptorPoolCreateInfo descriptor_pool = { 0 };
+		descriptor_pool.sType         = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
+		descriptor_pool.maxSets       = 1024;
+		descriptor_pool.poolSizeCount = 2;
+		descriptor_pool.pPoolSizes    = pool_sizes;
+
+		vk.CreateDescriptorPool(vk.device, &descriptor_pool, 0, &frame->descriptors);
+
 		VkSemaphoreCreateInfo semaphore = { 0 };
 		semaphore.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
 
@@ -364,6 +381,16 @@ bool Vk_Setup(SDL_Window *window) {
 		vk.err = err;
 	}
 
+	{
+		VkSamplerCreateInfo create_info = { 0 };
+		create_info.sType      = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
+		create_info.magFilter  = VK_FILTER_NEAREST;
+		create_info.minFilter  = VK_FILTER_NEAREST;
+		create_info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
+
+		vk.CreateSampler(vk.device, &create_info, 0, &vk.sampler);
+	}
+
 	result = (vk.err == VK_SUCCESS);
 	return result;
 }
@@ -376,6 +403,7 @@ Vk_Frame *Vk_FrameBegin(SDL_Window *window) {
 
 	vk.ResetFences(vk.device, 1, &frame->fence);
 	vk.ResetCommandPool(vk.device, frame->pool, 0);
+	vk.ResetDescriptorPool(vk.device, frame->descriptors, 0);
 
 	VkResult res = vk.AcquireNextImageKHR(vk.device, vk.swapchain.handle, UINT64_MAX, frame->acquire, 0, &frame->image);
 	(void) res; // @Todo: check res to see if swapchain is out of date and rebuild
@@ -492,9 +520,7 @@ void Vk_CommandBufferSubmit(Vk_CommandBuffer *cmds, B32 wait) {
 
 	vk.QueueSubmit(vk.queue.handle, 1, &submit_info, cmds->fence);
 
-	if (wait) {
-		vk.DeviceWaitIdle(vk.device);
-	}
+	if (wait) { vk.DeviceWaitIdle(vk.device); }
 }
 
 #define VK_HOST_VISIBLE_FLAGS (VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)
@@ -532,31 +558,27 @@ internal VkDeviceMemory Vk_Allocate(VkMemoryRequirements *mreq, VkMemoryProperty
 	return result;
 }
 
-Vk_Buffer Vk_BufferCreate(U64 size, B32 host_visible) {
-	Vk_Buffer result = { 0 };
-
+void Vk_BufferCreate(Vk_Buffer *buffer) {
 	VkBufferCreateInfo create_info = { 0 };
 	create_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
-	create_info.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
-	create_info.size  = size;
+	create_info.usage = buffer->usage;
+	create_info.size  = buffer->size;
 
-	vk.CreateBuffer(vk.device, &create_info, 0, &result.handle);
+	vk.CreateBuffer(vk.device, &create_info, 0, &buffer->handle);
 
 	VkMemoryRequirements req;
-	vk.GetBufferMemoryRequirements(vk.device, result.handle, &req);
+	vk.GetBufferMemoryRequirements(vk.device, buffer->handle, &req);
 
-	VkMemoryPropertyFlags usage = host_visible ? VK_HOST_VISIBLE_FLAGS : VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
+	VkMemoryPropertyFlags usage = buffer->host_visible ? VK_HOST_VISIBLE_FLAGS : VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
 
-	result.size   = req.size;
-	result.memory = Vk_Allocate(&req, usage);
+	buffer->size   = req.size;
+	buffer->memory = Vk_Allocate(&req, usage);
 
-	vk.BindBufferMemory(vk.device, result.handle, result.memory, 0);
+	vk.BindBufferMemory(vk.device, buffer->handle, buffer->memory, 0);
 
-	if (host_visible) {
-		vk.MapMemory(vk.device, result.memory, 0, result.size, 0, &result.data);
+	if (buffer->host_visible) {
+		vk.MapMemory(vk.device, buffer->memory, 0, buffer->size, 0, &buffer->data);
 	}
-
-	return result;
 }
 
 void Vk_ImageCreate(Vk_Image *image) {
@@ -595,3 +617,95 @@ void Vk_ImageCreate(Vk_Image *image) {
 
 	vk.CreateImageView(vk.device, &view_info, 0, &image->view);
 }
+
+void Vk_PipelineCreate(Vk_Pipeline *pipeline) {
+	VkPipelineInputAssemblyStateCreateInfo ia = { 0 };
+	ia.sType    = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
+	ia.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+
+	VkPipelineShaderStageCreateInfo shaders[8] = { 0 };
+	for (U32 it = 0; it < pipeline->shaders.count; ++it) {
+		shaders[it].sType  = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
+		shaders[it].stage  = pipeline->shaders.items[it].stage;
+		shaders[it].module = pipeline->shaders.items[it].handle;
+		shaders[it].pName  = "main";
+	}
+
+	VkPipelineVertexInputStateCreateInfo vi = { 0 };
+	vi.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
+
+	// This will be updated later using dynamic commands but we still need to supply one here for
+	// some reason
+	VkViewport viewport = { 0, 0, 10, 10, 0, 1 };
+	VkRect2D   scissor  = { 0, 0, 10, 10 };
+
+	VkPipelineViewportStateCreateInfo vp = { 0 };
+	vp.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
+	vp.viewportCount = 1;
+	vp.pViewports    = &viewport;
+	vp.scissorCount  = 1;
+	vp.pScissors     = &scissor;
+
+	VkPipelineRasterizationStateCreateInfo rs = { 0 };
+	rs.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
+	rs.lineWidth = 1.0f;
+
+	VkPipelineMultisampleStateCreateInfo ms = { 0 };
+	ms.sType                = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
+	ms.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
+
+	VkPipelineDepthStencilStateCreateInfo ds = { 0 };
+	ds.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
+
+	VkPipelineColorBlendAttachmentState blend = { 0 };
+	blend.blendEnable         = VK_TRUE;
+	blend.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
+	blend.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
+	blend.colorBlendOp        = VK_BLEND_OP_ADD;
+	blend.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
+	blend.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
+	blend.alphaBlendOp        = VK_BLEND_OP_ADD;
+	blend.colorWriteMask      = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
+
+	VkPipelineColorBlendStateCreateInfo om = { 0 };
+	om.sType           = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
+	om.attachmentCount = 1;
+	om.pAttachments    = &blend;
+
+	VkDynamicState dynamic_state[] = {
+		VK_DYNAMIC_STATE_VIEWPORT,
+		VK_DYNAMIC_STATE_SCISSOR
+	};
+
+	VkPipelineDynamicStateCreateInfo dyn = { 0 };
+	dyn.sType             = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
+	dyn.dynamicStateCount = ArraySize(dynamic_state);
+	dyn.pDynamicStates    = dynamic_state;
+
+	VkFormat formats[8];
+	for (U32 it = 0; it < pipeline->targets.count; ++it) {
+		formats[it] = pipeline->targets.items[it];
+	}
+
+	VkPipelineRenderingCreateInfo rendering_info = { 0 };
+	rendering_info.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO;
+	rendering_info.colorAttachmentCount    = pipeline->targets.count;
+	rendering_info.pColorAttachmentFormats = formats;
+
+	VkGraphicsPipelineCreateInfo create_info = { 0 };
+	create_info.sType               = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
+	create_info.pNext               = &rendering_info;
+	create_info.stageCount          = pipeline->shaders.count;
+	create_info.pStages             = shaders;
+	create_info.pVertexInputState   = &vi;
+	create_info.pInputAssemblyState = &ia;
+	create_info.pViewportState      = &vp;
+	create_info.pRasterizationState = &rs;
+	create_info.pMultisampleState   = &ms;
+	create_info.pDepthStencilState  = &ds;
+	create_info.pColorBlendState    = &om;
+	create_info.pDynamicState       = &dyn;
+	create_info.layout              = pipeline->layout.pipeline;
+
+	vk.CreateGraphicsPipelines(vk.device, 0, 1, &create_info, 0, &pipeline->handle);
+}

code/vulkan/core.h

@@ -25,26 +25,6 @@
 #define VK_MAX_FRAMES_IN_FLIGHT 8
 #define VK_NUM_SCRATCH 8
 
-typedef struct Vk_CommandBuffer Vk_CommandBuffer;
-struct Vk_CommandBuffer {
-	VkCommandBuffer handle;
-	VkFence fence;
-};
-
-typedef struct Vk_Frame Vk_Frame;
-struct Vk_Frame {
-	VkCommandPool   pool;
-	VkCommandBuffer cmd;
-
-	VkSemaphore acquire, complete;
-	VkFence fence;
-
-	U32 next_scratch;
-	Vk_CommandBuffer scratch[VK_NUM_SCRATCH];
-
-	U32 image; // swapchain image index
-};
-
 typedef struct Vk_Image Vk_Image;
 struct Vk_Image {
 	VkDeviceMemory memory;
@@ -60,14 +40,65 @@ struct Vk_Image {
 
 typedef struct Vk_Buffer Vk_Buffer;
 struct Vk_Buffer {
+	VkBuffer handle;
+
 	VkDeviceMemory memory;
 	VkDeviceSize   size;
 
-	VkBuffer handle;
+	VkBufferUsageFlags usage;
 
+	B32 host_visible;
 	void *data; // if mapped host visible memory
 };
 
+typedef struct Vk_Shader Vk_Shader;
+struct Vk_Shader {
+	VkShaderModule handle;
+	VkShaderStageFlags stage;
+};
+
+typedef struct Vk_Pipeline Vk_Pipeline;
+struct Vk_Pipeline {
+	VkPipeline handle;
+
+	struct {
+		VkPipelineLayout pipeline;
+		VkDescriptorSetLayout set;
+	} layout;
+
+	struct {
+		VkFormat items[8];
+		U32 count;
+	} targets;
+
+	struct {
+		Vk_Shader items[8];
+		U32 count;
+	} shaders;
+};
+
+typedef struct Vk_CommandBuffer Vk_CommandBuffer;
+struct Vk_CommandBuffer {
+	VkCommandBuffer handle;
+	VkFence fence;
+};
+
+typedef struct Vk_Frame Vk_Frame;
+struct Vk_Frame {
+	VkCommandPool   pool;
+	VkCommandBuffer cmd;
+
+	VkDescriptorPool descriptors;
+
+	VkSemaphore acquire, complete;
+	VkFence fence;
+
+	U32 next_scratch;
+	Vk_CommandBuffer scratch[VK_NUM_SCRATCH];
+
+	U32 image; // swapchain image index
+};
+
 typedef struct Vk_Context Vk_Context;
 struct Vk_Context {
 	void *lib;
@@ -110,6 +141,8 @@ struct Vk_Context {
 		U32 width;
 		U32 height;
 	} swapchain;
+
+	VkSampler sampler;
 };
 
 extern Vk_Context vk;
@@ -122,6 +155,7 @@ function void Vk_FrameEnd();
 function Vk_CommandBuffer *Vk_CommandBufferPush();
 function void              Vk_CommandBufferSubmit(Vk_CommandBuffer *cmds, B32 wait);
 
-function Vk_Buffer Vk_BufferCreate(U64 size, B32 host_visible);
+function void Vk_BufferCreate(Vk_Buffer *buffer);
+function void Vk_ImageCreate(Vk_Image *image);
 
 #endif  // LD_VULKAN_CORE_H_

code/vulkan/functions.h

@@ -48,6 +48,20 @@
 	VK_FUNC(GetImageMemoryRequirements);
 	VK_FUNC(BindImageMemory);
 	VK_FUNC(MapMemory);
+	VK_FUNC(CreateGraphicsPipelines);
+	VK_FUNC(CreateShaderModule);
+	VK_FUNC(CreateDescriptorSetLayout);
+	VK_FUNC(CreatePipelineLayout);
+	VK_FUNC(CmdBindPipeline);
+	VK_FUNC(CreateDescriptorPool);
+	VK_FUNC(ResetDescriptorPool);
+	VK_FUNC(AllocateDescriptorSets);
+	VK_FUNC(CmdBindDescriptorSets);
+	VK_FUNC(UpdateDescriptorSets);
+	VK_FUNC(CreateSampler);
+	VK_FUNC(CmdDraw);
+	VK_FUNC(CmdSetViewport);
+	VK_FUNC(CmdSetScissor);
 
 	VK_FUNC(CmdCopyBufferToImage);
 	VK_FUNC(CmdPipelineBarrier2);

code/vulkan/shaders/basic.frag

@@ -0,0 +1,12 @@
+#version 460 core
+
+layout(location = 0) in vec2 frag_uv;
+layout(location = 1) in vec4 frag_c;
+
+layout(location = 0) out vec4 framebuffer;
+
+layout(binding = 1) uniform sampler2D u_image;
+
+void main() {
+	framebuffer = frag_c * texture(u_image, frag_uv);
+}

code/vulkan/shaders/basic.vert

@@ -0,0 +1,28 @@
+#version 460 core
+
+#extension GL_EXT_scalar_block_layout : enable
+
+struct Vertex {
+	vec4 p;
+	vec2 uv;
+	uint c;
+	uint pad;
+};
+
+layout(binding = 0, scalar)
+readonly buffer Vertices {
+	Vertex vtx[];
+};
+
+layout(location = 0) out vec2 frag_uv;
+layout(location = 1) out vec4 frag_c;
+
+void main() {
+	Vertex v = vtx[gl_VertexIndex];
+
+	gl_Position = v.p;
+
+	frag_uv = v.uv;
+	frag_c  = vec4((v.c >> 24) & 0xFF, (v.c >> 16) & 0xFF, (v.c >> 8) & 0xFF, (v.c >> 0) & 0xFF) / 255.0f;
+	frag_c  = frag_c.abgr;
+}

windows.bat

@@ -58,6 +58,13 @@ IF %assets% equ 1 (
 	xcopy /Y /Q "..\assets" "assets"
 )
 
+ECHO [Building shaders]
+
+IF NOT EXIST "assets\shaders" ( MKDIR "assets\shaders" )
+
+glslangValidator -o "assets\shaders\basic.vert.spv" --target-env vulkan1.3 "..\code\vulkan\shaders\basic.vert"
+glslangValidator -o "assets\shaders\basic.frag.spv" --target-env vulkan1.3 "..\code\vulkan\shaders\basic.frag"
+
 ECHO [Building source]
 
 SET COMPILER_OPTS=-nologo -W4 -I"deps\SDL3\include" -I"deps\stb" -I"%VULKAN_SDK%\Include"