1 files changed, 106 insertions, 23 deletions

diff --git a/linden/indra/llrender/llrender.h b/linden/indra/llrender/llrender.h
index ef495ed..e949190 100644
--- a/linden/indra/llrender/llrender.h
+++ b/linden/indra/llrender/llrender.h
@@ -9,7 +9,7 @@
  *
  * $LicenseInfo:firstyear=2001&license=viewergpl$
  * 
- * Copyright (c) 2001-2008, Linden Research, Inc.
+ * Copyright (c) 2001-2009, Linden Research, Inc.
  * 
  * Second Life Viewer Source Code
  * The source code in this file ("Source Code") is provided by Linden Lab
@@ -37,14 +37,39 @@
 #ifndef LL_LLGLRENDER_H
 #define LL_LLGLRENDER_H
 
-#include "stdtypes.h"
-#include "llgltypes.h"
+//#include "linden_common.h"
+
+#include "v2math.h"
+#include "v3math.h"
+#include "v4coloru.h"
+#include "llstrider.h"
+#include "llmemory.h"
 #include "llglheaders.h"
-#include "llvertexbuffer.h"
+
+class LLVertexBuffer;
+class LLCubeMap;
+class LLImageGL;
+class LLRenderTarget;
 
 class LLTexUnit
 {
+        friend class LLRender;
 public:
+        typedef enum
+        {
+                TT_TEXTURE = 0,                 // Standard 2D Texture
+                TT_RECT_TEXTURE,        // Non power of 2 texture
+                TT_CUBE_MAP,            // 6-sided cube map texture
+                TT_NONE                 // No texture type is currently enabled
+        } eTextureType;
+
+        typedef enum
+        {
+                TAM_WRAP = 0,                   // Standard 2D Texture
+                TAM_MIRROR,                             // Non power of 2 texture
+                TAM_CLAMP                               // No texture type is currently enabled
+        } eTextureAddressMode;
+
         typedef enum 
         {
                 TB_REPLACE = 0,
@@ -93,15 +118,41 @@ public:
                 TBS_ONE_MINUS_CONST_ALPHA
         } eTextureBlendSrc;
 
-        LLTexUnit(U32 index);
-        U32 getIndex(void);
+        LLTexUnit(S32 index);
 
-        void enable(void);
-        void disable(void);
-        void activate(void);
+        // Refreshes renderer state of the texture unit to the cached values
+        // Needed when the render context has changed and invalidated the current state
+        void refreshState(void);
 
-        void bindTexture(const LLImageGL* texture);
-        void unbindTexture(void);
+        // returns the index of this texture unit
+        S32 getIndex(void) const { return mIndex; }
+
+        // Sets this tex unit to be the currently active one
+        void activate(void); 
+
+        // Enables this texture unit for the given texture type (automatically disables any previously enabled texture type)
+        void enable(eTextureType type); 
+        // Disables the current texture unit
+        void disable(void);     
+        
+        // Binds the LLImageGL to this texture unit 
+        // (automatically enables the unit for the LLImageGL's texture type)
+        bool bind(const LLImageGL* texture, bool forceBind = false);
+
+        // Binds a cubemap to this texture unit 
+        // (automatically enables the texture unit for cubemaps)
+        bool bind(LLCubeMap* cubeMap);
+
+        // Binds a render target to this texture unit (automatically enables the texture unit for the RT's texture type)
+        bool bind(LLRenderTarget * renderTarget, bool bindDepth = false);
+
+        // Manually binds a texture to the texture unit (automatically enables the tex unit for the given texture type)
+        bool bindManual(eTextureType type, U32 texture);
+        
+        // Unbinds the currently bound texture of the given type (only if there's a texture of the given type currently bound)
+        void unbind(eTextureType type);
+
+        void setTextureAddressMode(eTextureAddressMode mode);
 
         void setTextureBlendType(eTextureBlendType type);
 
@@ -110,11 +161,14 @@ public:
 
         // NOTE: If *_COLOR enums are passed to src1 or src2, the corresponding *_ALPHA enum will be used instead.
         inline void setTextureAlphaBlend(eTextureBlendOp op, eTextureBlendSrc src1, eTextureBlendSrc src2 = TBS_PREV_ALPHA)
-        { setTextureCombiner(op, src1, src2, true); }   
+        { setTextureCombiner(op, src1, src2, true); }
 
-private:
-        U32                                     mIndex;
-        bool                            mIsEnabled;
+        static U32 getInternalType(eTextureType type);
+
+protected:
+        S32                                     mIndex;
+        U32                                     mCurrTexture;
+        eTextureType            mCurrTexType;
         eTextureBlendType       mCurrBlendType;
         eTextureBlendOp         mCurrColorOp;
         eTextureBlendSrc        mCurrColorSrc1;
@@ -137,6 +191,19 @@ class LLRender
 {
         friend class LLTexUnit;
 public:
+
+        typedef enum {
+                TRIANGLES = 0,
+                TRIANGLE_STRIP,
+                TRIANGLE_FAN,
+                POINTS,
+                LINES,
+                LINE_STRIP,
+                QUADS,
+                LINE_LOOP,
+                NUM_MODES
+        } eGeomModes;
+
         typedef enum 
         {
                 CF_NEVER = 0,
@@ -178,6 +245,10 @@ public:
         ~LLRender();
         void shutdown();
         
+        // Refreshes renderer state to the cached values
+        // Needed when the render context has changed and invalidated the current state
+        void refreshState(void);
+
         void translatef(const GLfloat& x, const GLfloat& y, const GLfloat& z);
         void scalef(const GLfloat& x, const GLfloat& y, const GLfloat& z);
         void pushMatrix();
@@ -214,6 +285,12 @@ public:
 
         LLTexUnit* getTexUnit(U32 index);
 
+        U32     getCurrentTexUnitIndex(void) const { return mCurrTextureUnitIndex; }
+
+        bool verifyTexUnitActive(U32 unitToVerify);
+
+        void debugTexUnits(void);
+
         struct Vertex
         {
                 GLfloat v[3];
@@ -224,14 +301,20 @@ public:
 public:
 
 private:
-        U32 mCount;
-        U32 mMode;
-        U32 mCurrTextureUnitIndex;
-        LLPointer<LLVertexBuffer> mBuffer;
-        LLStrider<LLVector3> mVerticesp;
-        LLStrider<LLVector2> mTexcoordsp;
-        LLStrider<LLColor4U> mColorsp;
-        std::vector<LLTexUnit*> mTexUnits;
+        bool                            mDirty;
+        U32                             mCount;
+        U32                             mMode;
+        U32                             mCurrTextureUnitIndex;
+        bool                            mCurrColorMask[4];
+        eCompareFunc                    mCurrAlphaFunc;
+        F32                             mCurrAlphaFuncVal;
+
+        LLPointer<LLVertexBuffer>       mBuffer;
+        LLStrider<LLVector3>            mVerticesp;
+        LLStrider<LLVector2>            mTexcoordsp;
+        LLStrider<LLColor4U>            mColorsp;
+        std::vector<LLTexUnit*>         mTexUnits;
+        LLTexUnit*                      mDummyTexUnit;
 };
 
 extern F64 gGLModelView[16];