svn merge ^/branches/released . --username marha

1 files changed, 231 insertions, 0 deletions

diff --git a/mesalib/src/mesa/tnl/t_context.c b/mesalib/src/mesa/tnl/t_context.c
new file mode 100644
index 000000000..f2771cde0
--- /dev/null
+++ b/mesalib/src/mesa/tnl/t_context.c
@@ -0,0 +1,231 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.2
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+
+#include "main/glheader.h"
+#include "main/imports.h"
+#include "main/context.h"
+#include "main/macros.h"
+#include "main/mtypes.h"
+#include "main/light.h"
+#include "math/m_translate.h"
+#include "math/m_xform.h"
+
+#include "tnl.h"
+#include "t_context.h"
+#include "t_pipeline.h"
+#include "t_vp_build.h"
+
+#include "vbo/vbo.h"
+
+GLboolean
+_tnl_CreateContext( GLcontext *ctx )
+{
+   TNLcontext *tnl;
+
+   /* Create the TNLcontext structure
+    */
+   ctx->swtnl_context = tnl = (TNLcontext *) CALLOC( sizeof(TNLcontext) );
+
+   if (!tnl) {
+      return GL_FALSE;
+   }
+
+   /* Initialize the VB.
+    */
+   tnl->vb.Size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES;
+
+
+   /* Initialize tnl state.
+    */
+   if (ctx->VertexProgram._MaintainTnlProgram) {
+      _tnl_install_pipeline( ctx, _tnl_vp_pipeline );
+   } else {
+      _tnl_install_pipeline( ctx, _tnl_default_pipeline );
+   }
+
+   tnl->NeedNdcCoords = GL_TRUE;
+   tnl->AllowVertexFog = GL_TRUE;
+   tnl->AllowPixelFog = GL_TRUE;
+
+   /* Set a few default values in the driver struct.
+    */
+   tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+   tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+   tnl->Driver.NotifyMaterialChange = _mesa_validate_all_lighting_tables;
+
+   tnl->nr_blocks = 0;
+
+   /* plug in the VBO drawing function */
+   vbo_set_draw_func(ctx, _tnl_vbo_draw_prims);
+
+   _math_init_transformation();
+   _math_init_translate();
+
+   return GL_TRUE;
+}
+
+
+void
+_tnl_DestroyContext( GLcontext *ctx )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+
+   _tnl_destroy_pipeline( ctx );
+
+   FREE(tnl);
+   ctx->swtnl_context = NULL;
+}
+
+
+void
+_tnl_InvalidateState( GLcontext *ctx, GLuint new_state )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   const struct gl_vertex_program *vp = ctx->VertexProgram._Current;
+   const struct gl_fragment_program *fp = ctx->FragmentProgram._Current;
+
+   if (new_state & (_NEW_HINT | _NEW_PROGRAM)) {
+      ASSERT(tnl->AllowVertexFog || tnl->AllowPixelFog);
+      tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
+         || !tnl->AllowPixelFog) && !fp;
+   }
+
+   tnl->pipeline.new_state |= new_state;
+
+   /* Calculate tnl->render_inputs.  This bitmask indicates which vertex
+    * attributes need to be emitted to the rasterizer.
+    */
+   if (ctx->Visual.rgbMode) {
+      GLuint i;
+
+      RENDERINPUTS_ZERO( tnl->render_inputs_bitset );
+      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS );
+
+      if (!fp || (fp->Base.InputsRead & FRAG_BIT_COL0)) {
+         RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0 );
+      }
+
+      if (NEED_SECONDARY_COLOR(ctx))
+         RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 );
+
+      for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
+         if (ctx->Texture._EnabledCoordUnits & (1 << i) ||
+             (fp && fp->Base.InputsRead & FRAG_BIT_TEX(i))) {
+            RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) );
+         }
+      }
+   }
+   else {
+      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS );
+      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR_INDEX );
+   }
+
+   if (ctx->Fog.Enabled) {
+      /* fixed-function fog */
+      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
+   }
+   else if (fp) {
+      if (fp->FogOption != GL_NONE || (fp->Base.InputsRead & FRAG_BIT_FOGC)) {
+         /* fragment program needs fog coord */
+         RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
+      }
+   }
+
+   if (ctx->Polygon.FrontMode != GL_FILL || 
+       ctx->Polygon.BackMode != GL_FILL)
+      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_EDGEFLAG );
+
+   if (ctx->RenderMode == GL_FEEDBACK)
+      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX0 );
+
+   if (ctx->Point._Attenuated ||
+       (ctx->VertexProgram._Enabled && ctx->VertexProgram.PointSizeEnabled))
+      RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POINTSIZE );
+
+   /* check for varying vars which are written by the vertex program */
+   if (vp) {
+      GLuint i;
+      for (i = 0; i < MAX_VARYING; i++) {
+         if (vp->Base.OutputsWritten & (1 << (VERT_RESULT_VAR0 + i))) {
+            RENDERINPUTS_SET(tnl->render_inputs_bitset,
+                             _TNL_ATTRIB_GENERIC(i));
+         }
+      }
+   }
+}
+
+
+void
+_tnl_wakeup( GLcontext *ctx )
+{
+   /* Assume we haven't been getting state updates either:
+    */
+   _tnl_InvalidateState( ctx, ~0 );
+
+#if 0
+   if (ctx->Light.ColorMaterialEnabled) {
+      _mesa_update_color_material( ctx, 
+				   ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
+   }
+#endif
+}
+
+
+
+
+/**
+ * Drivers call this function to tell the TCL module whether or not
+ * it wants Normalized Device Coords (NDC) computed.  I.e. whether
+ * we should "Divide-by-W".  Software renders will want that.
+ */
+void
+_tnl_need_projected_coords( GLcontext *ctx, GLboolean mode )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   tnl->NeedNdcCoords = mode;
+}
+
+void
+_tnl_allow_vertex_fog( GLcontext *ctx, GLboolean value )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   tnl->AllowVertexFog = value;
+   tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
+      || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current;
+
+}
+
+void
+_tnl_allow_pixel_fog( GLcontext *ctx, GLboolean value )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   tnl->AllowPixelFog = value;
+   tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
+      || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current;
+}
+