Initial commit of current work on Prime World Editor

Resource/CTexture.h

@@ -0,0 +1,83 @@
+#ifndef CTEXTURE_H
+#define CTEXTURE_H
+
+#include <Common/types.h>
+#include <FileIO/FileIO.h>
+#include <gl/glew.h>
+#include "CResource.h"
+#include "ETexelFormat.h"
+
+class CTexture : public CResource
+{
+    friend class CTextureDecoder;
+    friend class CTextureEncoder;
+
+    ETexelFormat mTexelFormat;         // Format of decoded image data
+    ETexelFormat mSourceTexelFormat;   // Format of input TXTR file
+    u16 mWidth, mHeight;               // Image dimensions
+    u32 mNumMipMaps;                   // The number of mipmaps this texture has
+    u32 mLinearSize;                   // The size of the top level mipmap, in bytes
+
+    bool mBufferExists; // Boolean that indicates whether image data buffer has valid data
+    u8 *mImgDataBuffer; // Pointer to image data buffer
+    u32 mImgDataSize;   // Size of image data buffer
+
+    bool mGLBufferExists; // Boolean that indicates whether GL buffer has valid data
+    GLuint mTextureID;    // ID for texture GL buffer
+
+public:
+    CTexture();
+    CTexture(const CTexture& Source);
+    CTexture(u32 Width, u32 Height);
+    ~CTexture();
+    EResType Type();
+
+    bool BufferGL();
+    void Bind(u32 GLTextureUnit);
+    void Resize(u32 Width, u32 Height);
+    bool WriteDDS(COutputStream& out);
+
+    // Getters
+    ETexelFormat TexelFormat();
+    ETexelFormat SourceTexelFormat();
+    u32 Width();
+    u32 Height();
+    u32 NumMipMaps();
+    GLuint TextureID();
+
+    // Static
+    static u32 FormatBPP(ETexelFormat Format);
+
+    // Private
+private:
+    void CalcLinearSize();
+    u32 CalcTotalSize();
+    void CopyGLBuffer();
+    void DeleteBuffers();
+};
+
+inline ETexelFormat CTexture::TexelFormat() {
+    return mTexelFormat;
+}
+
+inline ETexelFormat CTexture::SourceTexelFormat() {
+    return mSourceTexelFormat;
+}
+
+inline u32 CTexture::Width() {
+    return (u32) mWidth;
+}
+
+inline u32 CTexture::Height() {
+    return (u32) mHeight;
+}
+
+inline u32 CTexture::NumMipMaps() {
+    return mNumMipMaps;
+}
+
+inline GLuint CTexture::TextureID() {
+    return mTextureID;
+}
+
+#endif // CTEXTURE_H