Add a bit more of the texture loading

src/framework/textureid.cpp

@@ -1,4 +1,35 @@
 
 #include "textureid.h"
+#include "filesystem.h"
+#include "picopng/picopng.h"
 
 FTextureManager TexMan;
+
+FGameTexture::FGameTexture(FString name) : Name(name)
+{
+	int lump = fileSystem.CheckNumForFullName(name);
+	if (lump < 0)
+	{
+		// Not found - should we mark it as invalid or use a dummy texture?
+		DisplayWidth = 64.0f;
+		DisplayHeight = 64.0f;
+	}
+	else
+	{
+		// To do: figure out what type of data we got here instead of assuming it is a png.
+
+		FileData filedata = fileSystem.ReadFile(lump);
+		int result = decodePNG(Pixels, Width, Height, (const unsigned char*)filedata.GetMem(), fileSystem.FileLength(lump), true);
+		if (result == 0)
+		{
+			DisplayWidth = (float)Width;
+			DisplayHeight = (float)Height;
+		}
+		else
+		{
+			// Not a png.
+			DisplayWidth = 64.0f;
+			DisplayHeight = 64.0f;
+		}
+	}
+}

src/framework/textureid.h

@@ -75,14 +75,28 @@ public:
 class FGameTexture
 {
 public:
+	FGameTexture() { Name = "-"; Valid = false; }
+	FGameTexture(FString name);
+
 	bool isValid() const { return Valid; }
-	float GetDisplayWidth() const { return 64.0f; }
+	float GetDisplayWidth() const { return DisplayWidth; }
-	float GetDisplayHeight() const { return 64.0f; }
+	float GetDisplayHeight() const { return DisplayHeight; }
-	float GetScaleY() const { return 1.0f; }
+	float GetScaleY() const { return ScaleY; }
+
+	const void* GetImagePixels() const { return Pixels.data(); }
+	int GetImageWidth() const { return Width; }
+	int GetImageHeight() const { return Height; }
 
 private:
 	FString Name;
 	bool Valid = true;
+	float DisplayWidth = 0.0f;
+	float DisplayHeight = 0.0f;
+	float ScaleY = 1.0f;
+
+	std::vector<unsigned char> Pixels;
+	unsigned long Width = 0;
+	unsigned long Height = 0;
 
 	friend class FTextureManager;
 };
@@ -93,8 +107,6 @@ public:
 	FTextureManager()
 	{
 		Textures.Push(std::make_unique<FGameTexture>());
-		Textures.Last()->Name = "-";
-		Textures.Last()->Valid = false;
 	}
 
 	FGameTexture* GetGameTexture(FTextureID texnum, bool animate = false)
@@ -140,8 +152,7 @@ public:
 			return FTextureID(it->second);
 
 		int id = Textures.Size();
-		Textures.Push(std::make_unique<FGameTexture>());
+		Textures.Push(std::make_unique<FGameTexture>(name));
-		Textures.Last()->Name = name;
 		NameToID[name] = id;
 
 		return FTextureID(id);

src/lightmapper/gpuraytracer.cpp

@@ -54,6 +54,7 @@ void GPURaytracer::Raytrace(DoomLevelMesh* mesh)
 		{
 			levelmesh->BeginFrame();
 			lightmapper->BeginFrame();
+			mDevice->GetDescriptorSetManager()->UpdateBindlessDescriptorSet();
 
 			TArray<LightmapTile*> tiles;
 			for (unsigned int i = 0, count = mesh->LightmapTiles.Size(); i < count; i++)

src/lightmapper/vk_renderdevice.cpp

@@ -81,7 +81,6 @@ VulkanRenderDevice::VulkanRenderDevice(LevelMeshViewer* viewer)
 	levelmesh = std::make_unique<VkLevelMesh>(this);
 	lightmapper = std::make_unique<VkLightmapper>(this);
 
-	descriptors->AddBindlessTextureIndex(GetTextureManager()->GetNullTextureView(), GetSamplerManager()->Get());
 	descriptors->AddBindlessTextureIndex(GetTextureManager()->GetNullTextureView(), GetSamplerManager()->Get());
 	descriptors->UpdateBindlessDescriptorSet();
 
@@ -93,6 +92,25 @@ VulkanRenderDevice::~VulkanRenderDevice()
 	vkDeviceWaitIdle(device->device);
 }
 
+int VulkanRenderDevice::GetBindlessTextureIndex(FTextureID textureID)
+{
+	if (!textureID.isValid())
+		return 0;
+
+	FGameTexture* tex = TexMan.GetGameTexture(textureID);
+	int& textureIndex = TextureIndexes[tex];
+	if (textureIndex != 0)
+		return textureIndex;
+
+	// To do: upload image
+
+	VulkanImageView* view = GetTextureManager()->GetNullTextureView();
+	VulkanSampler* sampler = GetSamplerManager()->Get();
+
+	textureIndex = GetDescriptorSetManager()->AddBindlessTextureIndex(view, sampler);
+	return textureIndex;
+}
+
 void VulkanRenderDevice::DrawViewer(const FVector3& cameraPos, const VSMatrix& viewToWorld, float fovy, float aspect, const FVector3& sundir, const FVector3& suncolor, float sunintensity)
 {
 	int imageIndex = GetCommands()->AcquireImage();

src/lightmapper/vk_renderdevice.h

@@ -32,7 +32,7 @@ public:
 	VkLevelMesh* GetLevelMesh() { return levelmesh.get(); }
 	VkLightmapper* GetLightmapper() { return lightmapper.get(); }
 
-	int GetBindlessTextureIndex(FTextureID texture) { return texture.isValid() ? 1 : 0; }
+	int GetBindlessTextureIndex(FTextureID texture);
 
 	bool IsRayQueryEnabled() const { return useRayQuery; }
 
@@ -68,6 +68,7 @@ private:
 	int CurrentWidth = 0;
 	int CurrentHeight = 0;
 	std::vector<std::unique_ptr<VulkanFramebuffer>> Framebuffers;
+	std::unordered_map<FGameTexture*, int> TextureIndexes;
 };
 
 class VkCommandBufferManager