WIP

include/Engine/Core/ResourceManager.h

@@ -19,6 +19,7 @@ class Resource
 
 protected:
 	Resource() { }
+    virtual ~Resource() { }
 
 public:
     //Should be thrown in a Resource's constructor if it cannot complete because another resource is still loading.

include/Engine/Rendering/DDS.h

@@ -0,0 +1,71 @@
+#ifndef DDS_h__
+#define DDS_h__
+
+#include <cstdint>
+
+#include "../Common.h"
+#include "../Core/ResourceManager.h"
+#include "Image.h"
+
+// DXT5
+class DDS : public Image, public Resource
+{
+public:
+    DDS(std::string path);
+    ~DDS();
+
+    void FlipY(unsigned char* data, std::size_t rowBytes, std::size_t totalSize, std::size_t numBlocksWide);
+
+private:
+    static const uint32_t MagicNumber = 0x20534444; // "DDS "
+
+    struct Header_t
+    {
+        uint32_t Size;
+        uint32_t Flags;
+        uint32_t Height;
+        uint32_t Width;
+        uint32_t PitchOrLinearSize;
+        uint32_t Depth;
+        uint32_t MipMapCount;
+        uint32_t RESERVED1[11];
+        struct PixelFormat_t
+        {
+            uint32_t Size;
+            uint32_t Flags;
+            uint32_t FourCC;
+            uint32_t RGBBitCount;
+            uint32_t RBitMask;
+            uint32_t GBitMask;
+            uint32_t BBitMask;
+            uint32_t ABitMask;
+        } PixelFormat;
+        uint32_t Caps;
+        uint32_t Caps2;
+        uint32_t Caps3;
+        uint32_t Caps4;
+        uint32_t RESERVED2;
+    } m_Header;
+
+    struct Block_t
+    {
+        struct Alpha_t
+        {
+            uint8_t Colors[2];
+            uint8_t Data[6];
+        } Alpha;
+        struct Data_t
+        {
+            uint16_t Colors[2];
+            uint8_t Data[4];
+        } Data;
+    };
+
+    std::size_t m_NumBlocksWide;
+    std::size_t m_NumBlocksHigh;
+    std::size_t m_RowBytes;
+
+    void flipBlock(Block_t* block);
+};
+
+#endif

include/Engine/Rendering/Image.h

@@ -3,6 +3,8 @@
 
 struct Image
 {
+    virtual ~Image() { }
+
 	enum class ImageFormat
 	{
 		Unknown,
@@ -13,7 +15,10 @@ struct Image
 	unsigned int Width = 0;
 	unsigned int Height = 0;
 	ImageFormat Format = ImageFormat::Unknown;
+    unsigned int MipMapLevels = 0;
+    bool Compressed = false;
 	unsigned char* Data = nullptr;
+    std::size_t ByteSize = 0;
 };
 
 #endif

include/Engine/Rendering/Texture.h

@@ -1,9 +1,11 @@
 #ifndef Texture_h__
 #define Texture_h__
 
+#include <boost/filesystem.hpp>
 #include "../OpenGL.h"
 #include "BaseTexture.h"
 #include "PNG.h"
+#include "DDS.h"
 
 class Texture : public BaseTexture
 {
@@ -18,7 +20,6 @@ public:
 	void Bind(GLenum textureUnit = GL_TEXTURE0);
 
 	GLuint m_Texture = 0;
-    unsigned char* Data = nullptr;
     
 };
 

resources/Schema/Entities/DDS.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<Entity xmlns:c="components" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../Types/Entity.xsd">
+
+  <Components>
+    <c:SceneLight>
+      <AmbientColor A="1" B="1" G="1" R="1"/>
+    </c:SceneLight>
+    <c:Sprite>
+      <DiffuseTexture>Textures/Core/UnitRaptor.png</DiffuseTexture>
+      <GlowMap></GlowMap>
+    </c:Sprite>
+    <c:Transform>
+      <Position X="0" Y="0" Z="-1.60000002"/>
+    </c:Transform>
+  </Components>
+
+  <Children/>
+
+</Entity>

resources/Schema/Entities/MovementTest.xml

@@ -118,6 +118,29 @@
         </Entity>
       </Children>
     </Entity>
+    <Entity>
+      <Components>
+        <c:Model>
+          <Resource>Models/Weapons/Blue/AssaultWeaponBlue.mesh</Resource>
+        </c:Model>
+        <c:Transform>
+          <Position X="0" Y="0.224672914" Z="0.838116169"/>
+        </c:Transform>
+      </Components>
+      <Children/>
+    </Entity>
+    <Entity>
+      <Components>
+        <c:Sprite>
+          <DiffuseTexture>Textures/Test/DXT5_noMipmaps.dds</DiffuseTexture>
+          <GlowMap></GlowMap>
+        </c:Sprite>
+        <c:Transform>
+          <Position X="-1.11805892" Y="0.598229825" Z="0.345348239"/>
+        </c:Transform>
+      </Components>
+      <Children/>
+    </Entity>
   </Children>
 
 </Entity>

src/Engine/Core/Util/Logging.cpp

@@ -33,8 +33,8 @@ void _LOG(_LOG_LEVEL logLevel, const char* file, const char* func, unsigned int
 	va_end(args);
 
 	if (logLevel == LOG_LEVEL_ERROR) {
-		//std::cerr << file << ":" << line << " " << func << std::endl;
+		std::cerr << file << ":" << line << " " << func << std::endl;
-		//std::cerr << _LOG_LEVEL_PREFIX[logLevel] << message << std::endl;
+		std::cerr << _LOG_LEVEL_PREFIX[logLevel] << message << std::endl;
 	} else {
 		std::cout << _LOG_LEVEL_PREFIX[logLevel] << message << std::endl;
 	}

src/Engine/Rendering/CubeMapPass.cpp

@@ -13,8 +13,8 @@ void CubeMapPass::LoadTextures(std::string input)
         for (int i = 0; i < 6; i++) {
             std::string str;
             str = "Textures/Test/CubeMap/" + input + "/CubeMapTest0" + std::to_string(i) + ".png";
-            Texture* img = ResourceManager::Load<Texture>(str);
+            //Texture* img = ResourceManager::Load<Texture>(str);
-            m_CubeMapTextures.push_back(img);
+            //m_CubeMapTextures.push_back(img);
         }
         GenerateCubeMapTexture();
         m_PreviusCubeMapTexture = input;
@@ -29,7 +29,7 @@ void CubeMapPass::GenerateCubeMapTexture()
     glBindTexture(GL_TEXTURE_CUBE_MAP, m_CubeMapTexture);
 
     for (int i = 0; i < 6; i++) {
-        glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGBA32F, m_CubeMapTextures[0]->Width, m_CubeMapTextures[0]->Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, m_CubeMapTextures[i]->Data);
+        //glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGBA32F, m_CubeMapTextures[0]->Width, m_CubeMapTextures[0]->Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, m_CubeMapTextures[i]->Data);
     }
     glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
     glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);

src/Engine/Rendering/DDS.cpp

@@ -0,0 +1,121 @@
+#include "Rendering/DDS.h"
+
+DDS::DDS(std::string path)
+{
+    std::ifstream in(path.c_str(), std::ios_base::binary | std::ios_base::ate);
+    if (!in.is_open()) {
+        throw Resource::FailedLoadingException("Failed to open file.");
+    }
+    unsigned int fileSize = static_cast<unsigned int>(in.tellg());
+    in.seekg(0, std::ios_base::beg);
+
+    if (fileSize < sizeof(MagicNumber) + sizeof(DDS::Header_t)) {
+        throw Resource::FailedLoadingException("Invalid DDS file; not even big enough to contain the DDS header!");
+    }
+
+    // Read magic number
+    uint32_t magicNumber;
+    in.read(reinterpret_cast<char*>(&magicNumber), sizeof(MagicNumber));
+    if (magicNumber != DDS::MagicNumber) {
+        throw Resource::FailedLoadingException("Invalid DDS file; magic number doesn't match.");
+    }
+
+    // Read header
+    in.read(reinterpret_cast<char*>(&m_Header), sizeof(DDS::Header_t));
+
+    // Validate header
+    if (m_Header.Size != sizeof(DDS::Header_t) || m_Header.PixelFormat.Size != sizeof(DDS::Header_t::PixelFormat_t)) {
+        throw Resource::FailedLoadingException("Corrupt DDS file; header size doesn't match!");
+    }
+
+    // Make sure it's DC3 (DXT5)
+    char format[5];
+    memcpy(&format, &m_Header.PixelFormat.FourCC, 4);
+    format[4] = '\0';
+    if (strcmp(format, "DXT5")) {
+        std::stringstream ss;
+        ss << "Invalid DDS file; Unsupported compression format \"" << format << "\"";
+        throw Resource::FailedLoadingException(ss.str().c_str());
+    }
+
+    this->Width = m_Header.Width;
+    this->Height = m_Header.Height;
+    this->Format = Image::ImageFormat::RGBA;
+    this->Compressed = true;
+    if (m_Header.MipMapCount != 0) {
+        this->MipMapLevels = m_Header.MipMapCount - 1;
+    }
+
+    // Read data
+    std::size_t dataSize = fileSize - sizeof(MagicNumber) - sizeof(DDS::Header_t);
+    this->Data = new unsigned char[dataSize];
+    this->ByteSize = dataSize;
+    in.read(reinterpret_cast<char*>(this->Data), dataSize);
+
+    // Flip!
+    unsigned int w = this->Width;
+    unsigned int h = this->Height;
+    unsigned char* mipMapData = this->Data;
+    for (unsigned int i = 0; i < this->MipMapLevels; ++i) {
+        std::size_t bpe = 16;
+        std::size_t numBlocksWide = std::max<std::size_t>(1, (w + 3) / 4);
+        std::size_t numBlocksHigh = std::max<std::size_t>(1, (h + 3) / 4);
+        std::size_t rowBytes = numBlocksWide * bpe;
+        std::size_t numRows = numBlocksHigh;
+        std::size_t numBytes = rowBytes * numBlocksHigh;
+        FlipY(mipMapData, rowBytes, numBytes, numBlocksWide);
+        w = w >> 1;
+        h = h >> 1;
+        mipMapData += numBytes;
+    } 
+}
+
+DDS::~DDS()
+{
+    if (this->Data != nullptr) {
+        delete[] this->Data;
+        this->Data = nullptr;
+    }
+}
+
+void DDS::FlipY(unsigned char* data, std::size_t rowBytes, std::size_t totalSize, std::size_t numBlocksWide)
+{
+    std::size_t height = totalSize / rowBytes;
+    unsigned char* topLine = data;
+    unsigned char* bottomLine = data + (height - 1) * rowBytes;
+    for (std::size_t line = 0; line < height / 2; ++line) {
+        Block_t* topBlocks = reinterpret_cast<Block_t*>(topLine);
+        Block_t* bottomBlocks = reinterpret_cast<Block_t*>(bottomLine);
+        for (std::size_t block = 0; block < numBlocksWide; ++block) {
+            flipBlock(&topBlocks[block]);
+            flipBlock(&bottomBlocks[block]);
+            std::swap(topBlocks[block], bottomBlocks[block]);
+        }
+        topLine += rowBytes;
+        bottomLine -= rowBytes;
+    }
+}
+
+void DDS::flipBlock(Block_t* block)
+{
+    // Extract both rows of pixel Data into a 32 bit sized values.
+    uint32_t pixelRow0 = block->Alpha.Data[0] + ((block->Alpha.Data[1] + (block->Alpha.Data[2] << 8)) << 8);
+    uint32_t pixelRow1 = block->Alpha.Data[3] + ((block->Alpha.Data[4] + (block->Alpha.Data[5] << 8)) << 8);
+
+    // Swap the extracted row Data.  These values will be read from and shifted into the final block locations.
+    uint32_t pixelRow0Swapped = ((pixelRow0 & 0x000fff) << 12) | ((pixelRow0 & 0xfff000) >> 12);
+    uint32_t pixelRow1Swapped = ((pixelRow1 & 0x000fff) << 12) | ((pixelRow1 & 0xfff000) >> 12);
+
+    // Swapped Data from row 1 is written
+    block->Alpha.Data[0] = static_cast<uint8_t>(pixelRow1Swapped  & 0x0000ff);
+    block->Alpha.Data[1] = static_cast<uint8_t>((pixelRow1Swapped & 0x00ff00) >> 8);
+    block->Alpha.Data[2] = static_cast<uint8_t>((pixelRow1Swapped & 0xff0000) >> 16);
+
+    // Swapped Data from row 0 is written
+    block->Alpha.Data[3] = static_cast<uint8_t>(pixelRow0Swapped  & 0x0000ff);
+    block->Alpha.Data[4] = static_cast<uint8_t>((pixelRow0Swapped & 0x00ff00) >> 8);
+    block->Alpha.Data[5] = static_cast<uint8_t>((pixelRow0Swapped & 0xff0000) >> 16);
+
+    std::swap(block->Data.Data[0], block->Data.Data[3]);
+    std::swap(block->Data.Data[1], block->Data.Data[2]);
+}

src/Engine/Rendering/PNG.cpp

@@ -96,10 +96,10 @@ PNG::~PNG()
 
 void PNG::pngErrorFunction(png_structp png_ptr, png_const_charp error_msg)
 {
-	LOG_WARNING("%s", error_msg);
+	LOG_WARNING("libpng error: %s", error_msg);
 }
 
 void PNG::pngWarningFunction(png_structp png_ptr, png_const_charp warning_msg)
 {
-	LOG_WARNING("%s", warning_msg);
+	LOG_WARNING("libpng warning: %s", warning_msg);
 }

src/Engine/Rendering/RawModelCustom.cpp

@@ -271,7 +271,7 @@ void RawModelCustom::ReadMaterialTextureProperties(RawModelCustom::TextureProper
 		}
 		texture.TexturePath = "Textures/";
 		texture.TexturePath += (fileData + offset);
-		texture.TexturePath += ".png";
+		texture.TexturePath += ".dds";
 		offset += nameLength;
 		if (offset + sizeof(glm::vec2) > fileByteSize) {
 			throw Resource::FailedLoadingException("Reading Material texture UVTiling failed");

src/Engine/Rendering/Texture.cpp

@@ -2,7 +2,15 @@
 
 Texture::Texture(std::string path)
 {
-    PNG* img = ResourceManager::Load<PNG, true>(path); //TODO: Make this threaded. Catch exeptions in all other load places.
+    std::string ext = boost::filesystem::path(path).extension().string();
+    Image* img;
+    if (ext == ".png") {
+        img = ResourceManager::Load<PNG, true>(path);
+    } else if (ext == ".dds") {
+        img = ResourceManager::Load<DDS, true>(path);
+    } else {
+        throw Resource::FailedLoadingException("Texture extension is not .png nor .dds");
+    }
 
     //PNG image(path);
 
@@ -18,7 +26,6 @@ Texture::Texture(std::string path)
 
     this->Width = img->Width;
     this->Height = img->Height;
-    this->Data = img->Data;
 
     GLint format;
     switch (img->Format) {
@@ -29,19 +36,57 @@ Texture::Texture(std::string path)
         format = GL_RGBA;
         break;
     }
-    
 
     // Construct the OpenGL texture
     glGenTextures(1, &m_Texture);
     glBindTexture(GL_TEXTURE_2D, m_Texture);
-    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-    glTexImage2D(GL_TEXTURE_2D, 0, format, img->Width, img->Height, 0, format, GL_UNSIGNED_BYTE, img->Data);
-	glGenerateMipmap(GL_TEXTURE_2D);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
     glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    GLERROR("Texture load");
+    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+    if (!img->Compressed) {
+        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+    }
+    unsigned int w = img->Width;
+    unsigned int h = img->Width;
+    unsigned char* data = img->Data;
+    for (int mipLevel = 0; mipLevel < 1 + img->MipMapLevels; mipLevel++) {
+        if (img->Compressed) {
+            //LOG_DEBUG("mipLevel: %i", mipLevel);
+            //LOG_DEBUG("w: %i", w);
+            //LOG_DEBUG("h: %i", h);
+
+            std::size_t bpe = 16;
+            std::size_t numBlocksWide = std::max<std::size_t>(1, (w + 3) / 4);
+            std::size_t numBlocksHigh = std::max<std::size_t>(1, (h + 3) / 4);
+            std::size_t rowBytes = numBlocksWide * bpe;
+            std::size_t numRows = numBlocksHigh;
+            std::size_t numBytes = rowBytes * numBlocksHigh;
+            //LOG_DEBUG("numBytes: %i", numBytes);
+            glCompressedTexImage2D(GL_TEXTURE_2D, mipLevel, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, w, h, 0, numBytes, data);
+            data += numBytes;
+        } else {
+            glTexImage2D(GL_TEXTURE_2D, mipLevel, format, img->Width, img->Height, 0, format, GL_UNSIGNED_BYTE, img->Data);
+        }
+
+        w = w >> 1;
+        h = h >> 1;
+    }
+    //LOG_DEBUG("REMAINDER: %i", img->ByteSize - (data - img->Data));
+    // Generate mipmaps if the image file doesn't contain them
+    if (img->MipMapLevels == 0) {
+        glGenerateMipmap(GL_TEXTURE_2D);
+    }
+
+    if (ext == ".png") {
+        ResourceManager::Release("PNG", path);
+    } else if (ext == ".dds") {
+        ResourceManager::Release("DDS", path);
+    }
+
+    if (GLERROR("Texture load")) {
+        throw Resource::FailedLoadingException("GL texture generation failed");
+    }
 }
 
 Texture::~Texture()

src/Game/Game.cpp

@@ -39,7 +39,8 @@ Game::Game(int argc, char* argv[])
     ResourceManager::RegisterType<Model>("Model");
     ResourceManager::RegisterType<RawModel>("RawModel");
     ResourceManager::RegisterType<Texture>("Texture");
-    ResourceManager::RegisterType<PNG>("Png");
+    ResourceManager::RegisterType<PNG>("PNG");
+    ResourceManager::RegisterType<DDS>("DDS");
     ResourceManager::RegisterType<ShaderProgram>("ShaderProgram");
     ResourceManager::RegisterType<EntityFile>("EntityFile");
     ResourceManager::RegisterType<Font>("FontFile");