From 4ac0c29d9bf09579fe7e53ea99d7bede2700ec1a Mon Sep 17 00:00:00 2001
From: samcake <samuel.gateau@gmail.com>
Date: Mon, 24 Oct 2016 09:40:34 -0700
Subject: [PATCH] Adding Image utility to GPU

---
 libraries/gpu/src/gpu/Image.cpp          | 17 ++++++
 libraries/gpu/src/gpu/Image.h            | 73 ++++++++++++++++++++++++
 libraries/model/src/model/TextureMap.cpp |  7 ++-
 3 files changed, 96 insertions(+), 1 deletion(-)
 create mode 100644 libraries/gpu/src/gpu/Image.cpp
 create mode 100644 libraries/gpu/src/gpu/Image.h

diff --git a/libraries/gpu/src/gpu/Image.cpp b/libraries/gpu/src/gpu/Image.cpp
new file mode 100644
index 0000000000..6649fc7876
--- /dev/null
+++ b/libraries/gpu/src/gpu/Image.cpp
@@ -0,0 +1,17 @@
+#include "TextureUtils.h"
+
+
+int image::Pixel::cpp { 0 };
+
+namespace image {
+template <> void compress(const PB_RGB32& src, CB_8& dst) {
+    
+    for (auto& b : dst.bytes) {
+        b = 12;
+    }
+}
+
+template <> void compress(const PB_RGBA32& src, CB_8& dst) {
+    
+}
+}
\ No newline at end of file
diff --git a/libraries/gpu/src/gpu/Image.h b/libraries/gpu/src/gpu/Image.h
new file mode 100644
index 0000000000..a36990b215
--- /dev/null
+++ b/libraries/gpu/src/gpu/Image.h
@@ -0,0 +1,73 @@
+/*
+ Let s try compressing images
+ 
+*/
+#include "Forward.h"
+
+
+namespace image {
+
+    class Pixel {
+    public:
+        using Byte = uint8_t;
+        static const Byte BLACK { 0 };
+        static const Byte WHITE { 255 };
+        
+        struct RGB32 {
+            Byte r { BLACK };
+            Byte g { BLACK };
+            Byte b { BLACK };
+            Byte x { WHITE };
+        };
+        
+        struct RGBA32 {
+            Byte r { BLACK };
+            Byte g { BLACK };
+            Byte b { BLACK };
+            Byte a { WHITE };
+        };
+        
+        
+        static int cpp;
+    };
+
+    template <typename P> class PixelBlock {
+    public:
+        static const uint32_t WIDTH { 4 };
+        static const uint32_t HEIGHT { WIDTH };
+        static const uint32_t SIZE { WIDTH * HEIGHT };
+        constexpr uint32_t getByteSize() const { return SIZE * sizeof(P); }
+        
+        P pixels[SIZE];
+        
+        PixelBlock() {}
+        
+        
+        PixelBlock(const P* srcPixels) {
+            setPixels(srcPixels);
+        }
+        
+        void setPixels(const P* srcPixels) {
+            memcpy(pixels, srcPixels, getByteSize());
+        }
+        
+    };
+    
+    template <int Size> class CompressedBlock {
+    public:
+        uint8_t bytes[Size];
+    };
+    
+    template <typename PB, typename CB> void compress(const PB& srcPixelBlock, CB& dstBlock) { }
+
+    using PB_RGB32 = PixelBlock<Pixel::RGB32>;
+    using PB_RGBA32 = PixelBlock<Pixel::RGBA32>;
+    
+    using CB_8 = CompressedBlock<8>;
+    using CB_16 = CompressedBlock<16>;
+    
+    template <> void compress(const PB_RGB32& src, CB_8& dst);
+    template <> void compress(const PB_RGBA32& src, CB_8& dst);
+    
+    
+}
\ No newline at end of file
diff --git a/libraries/model/src/model/TextureMap.cpp b/libraries/model/src/model/TextureMap.cpp
index 30f176b5a6..a6ae3f675b 100755
--- a/libraries/model/src/model/TextureMap.cpp
+++ b/libraries/model/src/model/TextureMap.cpp
@@ -15,7 +15,7 @@
 #include <QDebug>
 
 #include "ModelLogging.h"
-
+#include <gpu/TextureUtils.h>
 using namespace model;
 using namespace gpu;
 
@@ -201,6 +201,11 @@ gpu::Texture* TextureUsage::process2DTextureColorFromImage(const QImage& srcImag
 
         theTexture->assignStoredMip(0, formatMip, image.byteCount(), image.constBits());
 
+        image::PB_RGB32 pb;
+        image::CB_8 cb;
+        
+        image::compress(pb, cb);
+        
         if (generateMips) {
             ::generateMips(theTexture, image, formatMip);
         }