glCgShader files added updates to glStateGuardian...

panda/src/glstuff/Sources.pp

@@ -1,6 +1,6 @@
 #define OTHER_LIBS interrogatedb:c dconfig:c dtoolconfig:m \
                    dtoolutil:c dtoolbase:c dtool:m
-
+#define USE_PACKAGES gl cggl
 // Most of the files here are not actually compiled into anything;
 // they're just included by various other directories.
 
@@ -8,7 +8,8 @@
   #define TARGET glstuff
   #define LOCAL_LIBS \
     gsgmisc gsgbase gobj display \
-    putil linmath mathutil pnmimage
+    putil linmath mathutil pnmimage \
+    effects
     
   #define INSTALL_HEADERS \
      glext.h \
@@ -26,7 +27,10 @@
      glSavedFrameBuffer_src.h \
      glTextureContext_src.cxx \
      glTextureContext_src.I \
-     glTextureContext_src.h
+     glTextureContext_src.h \
+     glCgShaderContext_src.cxx \
+     glCgShaderContext_src.h \
+     glCgShaderContext_src.I \
 
   #define SOURCES \
     $[INSTALL_HEADERS] glpure.cxx

panda/src/glstuff/glCgShaderContext_src.I

@@ -0,0 +1,219 @@
+// Filename: glCgShaderContext_src.I
+// Created by:  sshodhan (19Jul04)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001 - 2004, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://etc.cmu.edu/panda3d/docs/license/ .
+//
+// To contact the maintainers of this program write to
+// panda3d-general@lists.sourceforge.net .
+//
+////////////////////////////////////////////////////////////////////
+#ifdef HAVE_CGGL
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::Constructor
+//       Access: Published
+//  Description: Use CLP(CgShaderContext)() to construct a new
+//               CLP(CgShaderContext object.
+////////////////////////////////////////////////////////////////////
+INLINE CLP(CgShaderContext)::
+CLP(CgShaderContext)(PT(CgShader) cg_shader) :
+  CgShaderContext(cg_shader) {
+  bool res = init_cg_shader_context();
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param 1f
+//       Access: Published
+//  Description: Send 1f values to vertex or fragment shaders
+//               Your shaders must declare these as uniform params
+//               and can make use of them
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+set_param(const string &pname, const float value, bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLSetParameter1f(_cg_shader->_vertex_1f_params[pname], value);
+  } else {
+    cgGLSetParameter1f(_cg_shader->_fragment_1f_params[pname], value);
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param 1d
+//       Access: Published
+//  Description: Send 1d values to vertex or fragment shaders
+//               Your shaders must declare these as uniform params
+//               and can make use of them
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+set_param(const string &pname, const double value, bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLSetParameter1f(_cg_shader->_vertex_1d_params[pname], value);
+  } else {
+    cgGLSetParameter1f(_cg_shader->_fragment_1d_params[pname], value);
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param 2f
+//       Access: Published
+//  Description: Send 2f values to vertex or fragment shaders
+//               Your shaders must declare these as uniform params
+//               and can make use of them
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+set_param(const string &pname, const float value1, const float value2,
+  bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLSetParameter2f(_cg_shader->_vertex_2f_params[pname], value1, value2);
+  } else {
+    cgGLSetParameter2f(_cg_shader->_fragment_2f_params[pname], value1, value2);
+  }
+}
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param 2d
+//       Access: Published
+//  Description: Send 2d values to vertex or fragment shaders
+//               Your shaders must declare these as uniform params
+//               and can make use of them
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+set_param(const string &pname, const double value1, const double value2,
+  bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLSetParameter2d(_cg_shader->_vertex_2d_params[pname], value1, value2);
+  } else {
+    cgGLSetParameter2d(_cg_shader->_fragment_2d_params[pname], value1, value2);
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param 3f
+//       Access: Published
+//  Description: Send 3f values to vertex or fragment shaders
+//               Your shaders must declare these as uniform params
+//               and can make use of them
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+set_param(const string &pname, const float value1, const float value2,
+  const float value3, bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLSetParameter3f(_cg_shader->_vertex_3f_params[pname], value1, value2, value3);
+  } else {
+    cgGLSetParameter3f(_cg_shader->_fragment_3f_params[pname], value1, value2, value3);
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param 3d
+//       Access: Published
+//  Description: Send 3d values to vertex or fragment shaders
+//               Your shaders must declare these as uniform params
+//               and can make use of them
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+set_param(const string &pname, const double value1, const double value2, 
+  const double value3, bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLSetParameter3d(_cg_shader->_vertex_3d_params[pname], value1, value2, value3);
+  } else {
+    cgGLSetParameter3d(_cg_shader->_fragment_3d_params[pname], value1, value2, value3);
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param 4f
+//       Access: Published
+//  Description: Send 4f values to vertex or fragment shaders
+//               Your shaders must declare these as uniform params
+//               and can make use of them
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+set_param(const string &pname, const float value1, const float value2, 
+  const float value3, const float value4, bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLSetParameter4f(_cg_shader->_vertex_4f_params[pname], value1, value2, value3, value4);
+  } else {
+    cgGLSetParameter4f(_cg_shader->_fragment_4f_params[pname], value1, value2, value3, value4);
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param 4d
+//       Access: Published
+//  Description: Send 4d values to vertex or fragment shaders
+//               Your shaders must declare these as uniform params
+//               and can make use of them
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+set_param(const string &pname, const double value1, const double value2,
+  const double value3, const double value4, bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLSetParameter4d(_cg_shader->_vertex_4d_params[pname], value1, value2, value3, value4);
+  } else {
+    cgGLSetParameter4d(_cg_shader->_fragment_4d_params[pname], value1, value2, value3, value4);
+  }
+}
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param texture
+//       Access: Published
+//  Description: Send texture to vertex or fragment shaders
+//               Your shaders must declare these as uniform params
+//               and can make use of them
+//               What we actually send is the OpenGL texture index 
+//               for a texture
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+set_param(const string &pname, Texture *t , bool vert_or_frag, GraphicsStateGuardianBase *gsg) {
+  TextureContext *tc = t->prepare_now(gsg->get_prepared_objects(),gsg);
+  CLP(TextureContext) *gtc = DCAST(CLP(TextureContext), tc);
+  if (vert_or_frag) {
+    cgGLSetTextureParameter(_cg_shader->_vertex_texture_params[pname], gtc->_index);
+  } else {
+    cgGLSetTextureParameter(_cg_shader->_fragment_texture_params[pname], gtc->_index);
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::enable_texture_param
+//       Access: Published
+//  Description: Enable a texture that has already been set
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+enable_texture_param(const string &pname, bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLEnableTextureParameter(_cg_shader->_vertex_texture_params[pname]);
+  } else {
+    cgGLEnableTextureParameter(_cg_shader->_fragment_texture_params[pname]);
+    
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::enable_texture_param
+//       Access: Published
+//  Description: Disable a texture 
+////////////////////////////////////////////////////////////////////
+INLINE void CLP(CgShaderContext)::
+disable_texture_param(const string &pname, bool vert_or_frag) {
+  if (vert_or_frag) {
+    cgGLDisableTextureParameter(_cg_shader->_vertex_texture_params[pname]);
+  } else {
+    cgGLDisableTextureParameter(_cg_shader->_fragment_texture_params[pname]);
+  }
+}
+
+
+
+#endif

panda/src/glstuff/glCgShaderContext_src.cxx

@@ -0,0 +1,425 @@
+// Filename: glCgShaderContext_src.cxx
+// Created by:  sshodhan (19Jul04)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001 - 2004, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://etc.cmu.edu/panda3d/docs/license/ .
+//
+// To contact the maintainers of this program write to
+// panda3d-general@lists.sourceforge.net .
+//
+////////////////////////////////////////////////////////////////////
+#include "pandabase.h"
+
+#ifdef HAVE_CGGL
+
+#include <Cg/cgGL.h>
+
+TypeHandle CLP(CgShaderContext)::_type_handle;
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: CgShaderContext::init_cg
+//       Access: Published
+//  Description: Create the profiles : just go for the best available
+//               
+////////////////////////////////////////////////////////////////////
+bool CLP(CgShaderContext)::
+init_cg_shader_context() {
+
+  // Get The Latest GL Vertex Profile
+  _cg_shader->cgVertexProfile = cgGLGetLatestProfile(CG_GL_VERTEX);
+  // Get The Latest GL Fragment Profile
+  _cg_shader->cgFragmentProfile = cgGLGetLatestProfile(CG_GL_FRAGMENT);
+
+  // Validate Our Profile Determination 
+  if (_cg_shader->cgVertexProfile == CG_PROFILE_UNKNOWN) {
+    cerr << "VERTEX PROFILE UNKNOWN" << endl;
+    return false;
+  }
+  if (_cg_shader->cgFragmentProfile == CG_PROFILE_UNKNOWN) {
+    cerr << "FRAGMENT PROFILE UNKNOWN" << endl;
+    return false;
+  }
+
+  cgGLSetOptimalOptions(_cg_shader->cgVertexProfile);// Set The Current Profile
+  cgGLSetOptimalOptions(_cg_shader->cgFragmentProfile);// Set The Current Profile
+
+
+  return true;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CgShaderContext::load_shaders
+//       Access: Published
+//  Description: Download the programs to the GPU
+////////////////////////////////////////////////////////////////////
+void CLP(CgShaderContext)::
+load_shaders() {
+  // Load The Programs
+  cgGLLoadProgram(_cg_shader->cgVertexProgram);
+  cgGLLoadProgram(_cg_shader->cgFragmentProgram);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CgShaderContext::bind
+//       Access: Published
+//  Description: We support Textures, Matrices and Numbers as 
+//               parameters to the shaders. We iterate through
+//               maps which have <name, CgParameter> tuples
+//               There are two maps..one for vertex shader params
+//               and one for fragment shader params.
+////////////////////////////////////////////////////////////////////
+void CLP(CgShaderContext)::
+bind(GraphicsStateGuardianBase *gsg) {
+  CgShader::CGPARAMETER::const_iterator param_iter; // Use this to go through all params
+  
+  // Matrix params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_matrix_params.begin();
+    param_iter != _cg_shader->_vertex_matrix_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_matrices[param_iter->first].matrix, 
+       _cg_shader->_cg_matrices[param_iter->first].transform, 1);
+  }
+  // Fragment
+   for (param_iter = _cg_shader->_fragment_matrix_params.begin();
+    param_iter != _cg_shader->_fragment_matrix_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_matrices[param_iter->first].matrix, 
+       _cg_shader->_cg_matrices[param_iter->first].transform, 0);
+  }
+
+  // BIND THE FRAGMENT AND SHADER PROGRAMS (after Matrices are loaded)  
+  cgGLEnableProfile(_cg_shader->cgVertexProfile);
+  cgGLBindProgram(_cg_shader->cgVertexProgram);
+  cgGLEnableProfile(_cg_shader->cgFragmentProfile);
+  cgGLBindProgram(_cg_shader->cgFragmentProgram);
+   
+  // Texture params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_texture_params.begin();
+    param_iter != _cg_shader->_vertex_texture_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_textures[param_iter->first] , 1, gsg);
+    enable_texture_param(param_iter->first, 1);
+  }
+  //Fragment
+  for (param_iter = _cg_shader->_fragment_texture_params.begin();
+    param_iter != _cg_shader->_fragment_texture_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_textures[param_iter->first] , 0, gsg);
+    enable_texture_param(param_iter->first, 0);
+  }
+
+  // 1F params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_1f_params.begin();
+    param_iter != _cg_shader->_vertex_1f_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params1f[param_iter->first] , 1);
+  }
+  //Fragment
+  for (param_iter = _cg_shader->_fragment_1f_params.begin();
+    param_iter != _cg_shader->_fragment_1f_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params1f[param_iter->first] , 0);
+  }
+
+
+  // 2F params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_2f_params.begin();
+    param_iter != _cg_shader->_vertex_2f_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params2f[param_iter->first][0],
+       _cg_shader->_cg_params2f[param_iter->first][1], 1);
+  }
+  //Fragment
+  for (param_iter = _cg_shader->_fragment_2f_params.begin();
+    param_iter != _cg_shader->_fragment_2f_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params2f[param_iter->first][0],
+       _cg_shader->_cg_params2f[param_iter->first][1], 0);
+  }
+
+  // 3F params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_3f_params.begin();
+    param_iter != _cg_shader->_vertex_3f_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params3f[param_iter->first][0],
+       _cg_shader->_cg_params3f[param_iter->first][1], 
+         _cg_shader->_cg_params3f[param_iter->first][2], 1);
+  }
+  //Fragment
+  for (param_iter = _cg_shader->_fragment_3f_params.begin();
+    param_iter != _cg_shader->_fragment_3f_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params3f[param_iter->first][0],
+       _cg_shader->_cg_params3f[param_iter->first][1],
+         _cg_shader->_cg_params3f[param_iter->first][2], 0);
+  }
+
+  // 4F params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_4f_params.begin();
+    param_iter != _cg_shader->_vertex_4f_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params4f[param_iter->first][0],
+       _cg_shader->_cg_params4f[param_iter->first][1], 
+         _cg_shader->_cg_params4f[param_iter->first][2],
+           _cg_shader->_cg_params4f[param_iter->first][3], 1);
+  }
+  //Fragment
+  for (param_iter = _cg_shader->_fragment_4f_params.begin();
+    param_iter != _cg_shader->_fragment_4f_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params4f[param_iter->first][0],
+       _cg_shader->_cg_params4f[param_iter->first][1],
+         _cg_shader->_cg_params4f[param_iter->first][2],
+           _cg_shader->_cg_params4f[param_iter->first][3],0);
+  }
+
+  // 1D params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_1d_params.begin();
+    param_iter != _cg_shader->_vertex_1d_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params1d[param_iter->first] , 1);
+  }
+  //Fragment
+  for (param_iter = _cg_shader->_fragment_1d_params.begin();
+    param_iter != _cg_shader->_fragment_1d_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params1d[param_iter->first] , 0);
+  }
+
+
+  // 2D params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_2d_params.begin();
+    param_iter != _cg_shader->_vertex_2d_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params2d[param_iter->first][0],
+       _cg_shader->_cg_params2d[param_iter->first][1], 1);
+  }
+  //Fragment
+  for (param_iter = _cg_shader->_fragment_2d_params.begin();
+    param_iter != _cg_shader->_fragment_2d_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params2d[param_iter->first][0],
+       _cg_shader->_cg_params2d[param_iter->first][1], 0);
+  }
+
+  // 3D params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_3d_params.begin();
+    param_iter != _cg_shader->_vertex_3d_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params3d[param_iter->first][0],
+       _cg_shader->_cg_params3d[param_iter->first][1], 
+         _cg_shader->_cg_params3d[param_iter->first][2], 1);
+  }
+  //Fragment
+  for (param_iter = _cg_shader->_fragment_3d_params.begin();
+    param_iter != _cg_shader->_fragment_3d_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params3d[param_iter->first][0],
+       _cg_shader->_cg_params3d[param_iter->first][1],
+         _cg_shader->_cg_params3d[param_iter->first][2], 0);
+  }
+
+  // 4D params
+  // Vertex
+  for (param_iter = _cg_shader->_vertex_4d_params.begin();
+    param_iter != _cg_shader->_vertex_4d_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params4d[param_iter->first][0],
+       _cg_shader->_cg_params4d[param_iter->first][1], 
+         _cg_shader->_cg_params4d[param_iter->first][2],
+           _cg_shader->_cg_params4d[param_iter->first][3], 1);
+  }
+  //Fragment
+  for (param_iter = _cg_shader->_fragment_4d_params.begin();
+    param_iter != _cg_shader->_fragment_4d_params.end(); param_iter++) {
+    set_param(param_iter->first, _cg_shader->_cg_params4d[param_iter->first][0],
+       _cg_shader->_cg_params4d[param_iter->first][1],
+         _cg_shader->_cg_params4d[param_iter->first][2],
+           _cg_shader->_cg_params4d[param_iter->first][3],0);
+  }
+
+
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CgShaderContext::unbind
+//       Access: Published
+//  Description: Disable textures and shaders
+////////////////////////////////////////////////////////////////////
+void CLP(CgShaderContext)::
+un_bind(){
+
+  CgShader::CGPARAMETER::const_iterator param_iter; 
+  for (param_iter = _cg_shader->_vertex_texture_params.begin(); 
+    param_iter != _cg_shader->_vertex_texture_params.end(); param_iter++) {
+    disable_texture_param(param_iter->first, 1);
+  }
+
+  for (param_iter = _cg_shader->_fragment_texture_params.begin(); 
+    param_iter != _cg_shader->_fragment_texture_params.end(); param_iter++) {
+    disable_texture_param(param_iter->first, 0);
+  }
+
+
+  cgGLDisableProfile(_cg_shader->cgVertexProfile);// Disable Our Vertex Profile
+  cgGLDisableProfile(_cg_shader->cgFragmentProfile);// Disable Our Fragment Profile	
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(CgShaderContext)::set_param Matrix
+//       Access: Published
+//  Description: Select a matrix type and a transform type
+//               Matrices you can send to your shaders are:
+//                M_MODELVIEW,M_PROJECTION,M_TEXTURE,M_MODELVIEW_PROJECTION,
+//               and they can have th transforms:
+//                T_IDENTITY,T_TRANSPOSE,T_INVERSE,T_INVERSE_TRANSPOSE,
+////////////////////////////////////////////////////////////////////
+void CLP(CgShaderContext)::
+set_param(const string &pname, CgShader::Matrix_Type m, CgShader::Transform_Type t,
+  bool vert_or_frag) {
+  // MODELVIEW BEGINS
+  if (m == M_MODELVIEW) {
+    if (t == T_IDENTITY) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname],
+          CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_IDENTITY);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname],
+          CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_IDENTITY);
+      }
+    } else if (t == T_TRANSPOSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_TRANSPOSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_TRANSPOSE);
+      }
+    } else if (t == T_INVERSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_INVERSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_INVERSE);
+      }
+    } else if (t == T_INVERSE_TRANSPOSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_INVERSE_TRANSPOSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_INVERSE_TRANSPOSE);
+      }
+    }
+  // MODELVIEW ENDS
+  // PROJECTION BEGINS
+  } else if (m == M_PROJECTION) {
+    if (t == T_IDENTITY) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname],
+          CG_GL_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
+      }
+    } else if (t == T_TRANSPOSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_PROJECTION_MATRIX, CG_GL_MATRIX_TRANSPOSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_PROJECTION_MATRIX, CG_GL_MATRIX_TRANSPOSE);
+      }
+    } else if (t == T_INVERSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_PROJECTION_MATRIX, CG_GL_MATRIX_INVERSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_PROJECTION_MATRIX, CG_GL_MATRIX_INVERSE);
+      }
+    } else if (t == T_INVERSE_TRANSPOSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_PROJECTION_MATRIX, CG_GL_MATRIX_INVERSE_TRANSPOSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_PROJECTION_MATRIX, CG_GL_MATRIX_INVERSE_TRANSPOSE);
+      }
+    }
+  // PROJECTION ENDS
+  // TEXTURE BEGINS
+  } else if (m == M_TEXTURE) {
+    if (t == T_IDENTITY) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_TEXTURE_MATRIX, CG_GL_MATRIX_IDENTITY);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_TEXTURE_MATRIX, CG_GL_MATRIX_IDENTITY);
+      }
+    } else if (t == T_TRANSPOSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_TEXTURE_MATRIX, CG_GL_MATRIX_TRANSPOSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_TEXTURE_MATRIX, CG_GL_MATRIX_TRANSPOSE);
+      }
+    } else if (t == T_INVERSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_TEXTURE_MATRIX, CG_GL_MATRIX_INVERSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_TEXTURE_MATRIX, CG_GL_MATRIX_INVERSE);
+      }
+    } else if (t == T_INVERSE_TRANSPOSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_TEXTURE_MATRIX, CG_GL_MATRIX_INVERSE_TRANSPOSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_TEXTURE_MATRIX, CG_GL_MATRIX_INVERSE_TRANSPOSE);
+      }
+    }
+  // TEXTURE ENDS
+  // MODELVIEWPROJECTION BEGINS
+  } else if (m == M_MODELVIEW_PROJECTION) {
+    if (t == T_IDENTITY) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
+      }
+    } else if (t == T_TRANSPOSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_TRANSPOSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_TRANSPOSE);
+      }
+    } else if (t == T_INVERSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_INVERSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname], 
+          CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_INVERSE);
+      }
+    } else if (t == T_INVERSE_TRANSPOSE) {
+      if (vert_or_frag) {
+        cgGLSetStateMatrixParameter(_cg_shader->_vertex_matrix_params[pname], 
+          CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_INVERSE_TRANSPOSE);
+      } else {
+        cgGLSetStateMatrixParameter(_cg_shader->_fragment_matrix_params[pname],
+          CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_INVERSE_TRANSPOSE);
+      }
+    }
+  }
+  // MODELVIEWPROJECTION ENDS
+}
+
+#endif

panda/src/glstuff/glCgShaderContext_src.h

@@ -0,0 +1,109 @@
+// Filename: glCgShaderContext_src.h
+// Created by:  sshodhan (19Jul04)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001 - 2004, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://etc.cmu.edu/panda3d/docs/license/ .
+//
+// To contact the maintainers of this program write to
+// panda3d-general@lists.sourceforge.net .
+//
+////////////////////////////////////////////////////////////////////
+
+#include "pandabase.h"
+
+#ifdef HAVE_CGGL
+#include "cgShader.h"
+#include "cgShaderContext.h"
+#include "luse.h"
+#include "pmap.h"
+#include "texture.h"
+#include "dcast.h"
+#include <Cg/cgGL.h>
+
+
+////////////////////////////////////////////////////////////////////
+//       Class : GLCgShaderContext
+// Description : The GL version of CgShaderContext.
+//               This class binds and unbinds shaders, does the
+//               actual API specific parameter passing based on 
+//               the CgShader object pointed to in CgShaderContext
+////////////////////////////////////////////////////////////////////
+
+class EXPCL_GL CLP(CgShaderContext) : public CgShaderContext {
+
+public:
+  CLP(CgShaderContext)(PT(CgShader) cg_shader);
+  
+  INLINE void set_param(const string &pname, const float value,
+    bool vert_or_frag);
+
+  INLINE void set_param(const string &pname, const double value, 
+    bool vert_or_frag);
+
+  INLINE void set_param(const string &pname, const float value1, 
+    const float value2, bool vert_or_frag);
+
+  INLINE void set_param(const string &pname, const double value1, 
+    const double value2, bool vert_or_frag);
+
+  INLINE void set_param(const string &pname, const float value1,
+    const float value2, const float value3, bool vert_or_frag);
+
+  INLINE void set_param(const string &pname, const double value1,
+    const double value2, const double value3, bool vert_or_frag);
+
+  INLINE void set_param(const string &pname, const float value1, 
+    const float value2, const float value3, const float value4,
+      bool vert_or_frag);
+
+  INLINE void set_param(const string &pname, const double value1, 
+      const double value2, const double value3, const double value4,
+        bool vert_or_frag);
+
+  INLINE void set_param(const string &pname, Texture *t, bool vert_or_frag, GraphicsStateGuardianBase *gsg);
+
+  void set_param(const string &pname, CgShader::Matrix_Type m,
+    CgShader::Transform_Type t, bool vert_or_frag);
+
+  INLINE void enable_texture_param(const string &pname, bool vert_or_frag);
+  
+  INLINE void disable_texture_param(const string &pname, bool vert_or_frag);
+
+  void load_shaders();
+    
+public:
+
+  
+  INLINE void bind(GraphicsStateGuardianBase *gsg);
+  INLINE void un_bind();
+  bool init_cg_shader_context();
+
+public:
+  static TypeHandle get_class_type() {
+    return _type_handle;
+  }
+  static void init_type() {
+    CgShaderContext::init_type();
+    register_type(_type_handle, CLASSPREFIX_QUOTED "CgShaderContext",
+                  CgShaderContext::get_class_type());
+  }
+  virtual TypeHandle get_type() const {
+    return get_class_type();
+  }
+  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
+
+private:
+  static TypeHandle _type_handle;
+};
+
+#include "glCgShaderContext_src.I"
+
+#endif
+

panda/src/glstuff/glGraphicsStateGuardian_src.cxx

@@ -39,6 +39,7 @@
 #include "colorWriteAttrib.h"
 #include "texMatrixAttrib.h"
 #include "texGenAttrib.h"
+#include "cgShaderAttrib.h"
 #include "materialAttrib.h"
 #include "renderModeAttrib.h"
 #include "fogAttrib.h"
@@ -51,7 +52,6 @@
 #include "pvector.h"
 #include "vector_string.h"
 #include "string_utils.h"
-
 #ifdef DO_PSTATS
 #include "pStatTimer.h"
 #endif
@@ -241,6 +241,9 @@ CLP(GraphicsStateGuardian)(const FrameBufferProperties &properties) :
   GraphicsStateGuardian(properties) 
 {
   _error_count = 0;
+#ifdef HAVE_CGGL
+  _cg_shader = (CgShader *)NULL;
+#endif
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -384,6 +387,10 @@ reset() {
   enable_line_smooth(false);
   enable_multisample(true);
 
+#ifdef HAVE_CGGL
+  _cg_shader = (CgShader *)NULL;
+#endif
+
   // Should we normalize lighting normals?
   if (CLP(auto_normalize_lighting)) {
     GLP(Enable)(GL_NORMALIZE);
@@ -1411,6 +1418,7 @@ draw_quad(GeomQuad *geom, GeomContext *gc) {
 ////////////////////////////////////////////////////////////////////
 void CLP(GraphicsStateGuardian)::
 draw_tristrip(GeomTristrip *geom, GeomContext *gc) {
+  
 #ifdef GSG_VERBOSE
   GLCAT.spam() << "draw_tristrip()" << endl;
 #endif
@@ -1503,6 +1511,7 @@ draw_tristrip(GeomTristrip *geom, GeomContext *gc) {
 
   report_my_gl_errors();
   DO_PSTATS_STUFF(_draw_primitive_pcollector.stop());
+  
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -1713,6 +1722,8 @@ TextureContext *CLP(GraphicsStateGuardian)::
 prepare_texture(Texture *tex) {
   CLP(TextureContext) *gtc = new CLP(TextureContext)(tex);
   GLP(GenTextures)(1, &gtc->_index);
+  //cerr << "preparing texture " << tex->get_name() << ", assigning "
+  //     << gtc->_index << "\n";
 
   bind_texture(gtc);
   GLP(PrioritizeTextures)(1, &gtc->_index, &gtc->_priority);
@@ -2192,6 +2203,49 @@ issue_tex_matrix(const TexMatrixAttrib *attrib) {
   report_my_gl_errors();
 }
 
+
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: CLP(GraphicsStateGuardian)::issue_cg_shader_bind
+//       Access: Public, Virtual
+//  Description: Bind shader of current node
+//               and unbind the shader of the previous node
+//               Create a new GLCgShaderContext if this shader
+//               object is coming in for the first time
+//               Also maintain the map of CgShader objects to
+//               respective GLCgShaderContexts
+////////////////////////////////////////////////////////////////////
+void CLP(GraphicsStateGuardian)::
+issue_cg_shader_bind(const CgShaderAttrib *attrib) {
+#ifdef HAVE_CGGL
+  if (attrib->is_off()) { //Current node has no shaders
+    if (_cg_shader != (CgShader *) NULL) {
+      _gl_cg_shader_contexts[_cg_shader]->un_bind();// Prev node had shaders
+    }    
+    _cg_shader = attrib->get_cg_shader();//Store current node.. here NULL 
+  } else {// Current node has shaders
+    if (_cg_shader != (CgShader *) NULL) {
+      _gl_cg_shader_contexts[_cg_shader]->un_bind();// Prev node had shaders
+    }
+    _cg_shader = attrib->get_cg_shader();//Store current node  
+    CGSHADERCONTEXTS::const_iterator csci;
+    csci = _gl_cg_shader_contexts.find(_cg_shader);
+    if (csci != _gl_cg_shader_contexts.end()) { // Already have context?
+      (*csci).second->bind(this); // Bind the current shader
+    } else {// First time CgShader object...need to make a new GLCgShaderContext
+      PT(CLP(CgShaderContext)) csc = new CLP(CgShaderContext)(_cg_shader);
+      bool result = _cg_shader->load_shaders(); // Profiles created lets load from HD
+      csc->load_shaders(); // Programs loaded, compile and download to GPU
+      CGSHADERCONTEXTS::value_type shader_and_context(_cg_shader, csc);
+      _gl_cg_shader_contexts.insert(shader_and_context);
+      csc->bind(this);// Bind the new shader
+    }
+  }
+#endif
+
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: CLP(GraphicsStateGuardian)::issue_tex_gen
 //       Access: Public, Virtual

panda/src/glstuff/glGraphicsStateGuardian_src.h

@@ -30,7 +30,8 @@
 #include "fog.h"
 #include "graphicsWindow.h"
 #include "pset.h"
-
+#include "pmap.h"
+#include "cgShader.h"
 class PlaneNode;
 class Light;
 
@@ -104,6 +105,7 @@ public:
   virtual void issue_fog(const FogAttrib *attrib);
   virtual void issue_depth_offset(const DepthOffsetAttrib *attrib);
   virtual void issue_tex_gen(const TexGenAttrib *attrib);
+  virtual void issue_cg_shader_bind(const CgShaderAttrib *attrib);
   //  virtual void issue_stencil(const StencilAttrib *attrib);
 
   virtual void bind_light(PointLight *light, int light_id);
@@ -297,6 +299,11 @@ protected:
   int _projection_mat_stack_count;
 
   CPT(DisplayRegion) _actual_display_region;
+#ifdef HAVE_CGGL
+  PT(CgShader) _cg_shader; // The current CgShader object
+  typedef pmap< PT(CgShader), PT(CLP(CgShaderContext)) > CGSHADERCONTEXTS;
+  CGSHADERCONTEXTS _gl_cg_shader_contexts;// Associate CgShader with GLCgShaderContext
+#endif
 
   int _pass_number;
 

panda/src/glstuff/glstuff_src.cxx

@@ -25,5 +25,7 @@
 #include "glTextureContext_src.cxx"
 #include "glGeomContext_src.cxx"
 #include "glSavedFrameBuffer_src.cxx"
+#include "glCgShaderContext_src.cxx"
 #include "glGraphicsStateGuardian_src.cxx"
 
+

panda/src/glstuff/glstuff_src.h

@@ -43,5 +43,7 @@
 #include "glTextureContext_src.h"
 #include "glGeomContext_src.h"
 #include "glSavedFrameBuffer_src.h"
+#include "glCgShaderContext_src.h"
 #include "glGraphicsStateGuardian_src.h"
 
+