Added MesaLib-7.6

1 files changed, 273 insertions, 0 deletions

diff --git a/mesalib/src/mesa/vbo/vbo_context.c b/mesalib/src/mesa/vbo/vbo_context.c
new file mode 100644
index 000000000..75c32e0b9
--- /dev/null
+++ b/mesalib/src/mesa/vbo/vbo_context.c
@@ -0,0 +1,273 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.3
+ *
+ * Copyright (C) 1999-2005  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/imports.h"
+#include "main/mtypes.h"
+#include "main/api_arrayelt.h"
+#include "main/bufferobj.h"
+#include "math/m_eval.h"
+#include "vbo.h"
+#include "vbo_context.h"
+
+#if 0
+/* Reach out and grab this to use as the default:
+ */
+extern void _tnl_draw_prims( GLcontext *ctx,
+			     const struct gl_client_array *arrays[],
+			     const struct _mesa_prim *prims,
+			     GLuint nr_prims,
+			     const struct _mesa_index_buffer *ib,
+			     GLuint min_index,
+			     GLuint max_index );
+#endif
+
+
+
+#define NR_LEGACY_ATTRIBS 16
+#define NR_GENERIC_ATTRIBS 16
+#define NR_MAT_ATTRIBS 12
+
+static GLuint check_size( const GLfloat *attr )
+{
+   if (attr[3] != 1.0) return 4;
+   if (attr[2] != 0.0) return 3;
+   if (attr[1] != 0.0) return 2;
+   return 1;		
+}
+
+static void init_legacy_currval(GLcontext *ctx)
+{
+   struct vbo_context *vbo = vbo_context(ctx);
+   struct gl_client_array *arrays = vbo->legacy_currval;
+   GLuint i;
+
+   memset(arrays, 0, sizeof(*arrays) * NR_LEGACY_ATTRIBS);
+
+   /* Set up a constant (StrideB == 0) array for each current
+    * attribute:
+    */
+   for (i = 0; i < NR_LEGACY_ATTRIBS; i++) {
+      struct gl_client_array *cl = &arrays[i];
+
+      /* Size will have to be determined at runtime:
+       */
+      cl->Size = check_size(ctx->Current.Attrib[i]);
+      cl->Stride = 0;
+      cl->StrideB = 0;
+      cl->Enabled = 1;
+      cl->Type = GL_FLOAT;
+      cl->Format = GL_RGBA;
+      cl->Ptr = (const void *)ctx->Current.Attrib[i];
+      _mesa_reference_buffer_object(ctx, &cl->BufferObj,
+                                    ctx->Shared->NullBufferObj);
+   }
+}
+
+
+static void init_generic_currval(GLcontext *ctx)
+{
+   struct vbo_context *vbo = vbo_context(ctx);
+   struct gl_client_array *arrays = vbo->generic_currval;
+   GLuint i;
+
+   memset(arrays, 0, sizeof(*arrays) * NR_GENERIC_ATTRIBS);
+
+   for (i = 0; i < NR_GENERIC_ATTRIBS; i++) {
+      struct gl_client_array *cl = &arrays[i];
+
+      /* This will have to be determined at runtime:
+       */
+      cl->Size = 1;
+      cl->Type = GL_FLOAT;
+      cl->Format = GL_RGBA;
+      cl->Ptr = (const void *)ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + i];
+      cl->Stride = 0;
+      cl->StrideB = 0;
+      cl->Enabled = 1;
+      _mesa_reference_buffer_object(ctx, &cl->BufferObj,
+                                    ctx->Shared->NullBufferObj);
+   }
+}
+
+
+static void init_mat_currval(GLcontext *ctx)
+{
+   struct vbo_context *vbo = vbo_context(ctx);
+   struct gl_client_array *arrays = vbo->mat_currval;
+   GLuint i;
+
+   ASSERT(NR_MAT_ATTRIBS == MAT_ATTRIB_MAX);
+
+   memset(arrays, 0, sizeof(*arrays) * NR_MAT_ATTRIBS);
+
+   /* Set up a constant (StrideB == 0) array for each current
+    * attribute:
+    */
+   for (i = 0; i < NR_MAT_ATTRIBS; i++) {
+      struct gl_client_array *cl = &arrays[i];
+
+      /* Size is fixed for the material attributes, for others will
+       * be determined at runtime:
+       */
+      switch (i - VERT_ATTRIB_GENERIC0) {
+      case MAT_ATTRIB_FRONT_SHININESS:
+      case MAT_ATTRIB_BACK_SHININESS:
+	 cl->Size = 1;
+	 break;
+      case MAT_ATTRIB_FRONT_INDEXES:
+      case MAT_ATTRIB_BACK_INDEXES:
+	 cl->Size = 3;
+	 break;
+      default:
+	 cl->Size = 4;
+	 break;
+      }
+
+      cl->Ptr = (const void *)ctx->Light.Material.Attrib[i];
+      cl->Type = GL_FLOAT;
+      cl->Format = GL_RGBA;
+      cl->Stride = 0;
+      cl->StrideB = 0;
+      cl->Enabled = 1;
+      _mesa_reference_buffer_object(ctx, &cl->BufferObj,
+                                    ctx->Shared->NullBufferObj);
+   }
+}
+
+#if 0
+
+static void vbo_exec_current_init( struct vbo_exec_context *exec ) 
+{
+   GLcontext *ctx = exec->ctx;
+   GLint i;
+
+   /* setup the pointers for the typical 16 vertex attributes */
+   for (i = 0; i < VBO_ATTRIB_FIRST_MATERIAL; i++) 
+      exec->vtx.current[i] = ctx->Current.Attrib[i];
+
+   /* setup pointers for the 12 material attributes */
+   for (i = 0; i < MAT_ATTRIB_MAX; i++)
+      exec->vtx.current[VBO_ATTRIB_FIRST_MATERIAL + i] = 
+	 ctx->Light.Material.Attrib[i];
+}
+#endif
+
+GLboolean _vbo_CreateContext( GLcontext *ctx )
+{
+   struct vbo_context *vbo = CALLOC_STRUCT(vbo_context);
+
+   ctx->swtnl_im = (void *)vbo;
+
+   /* Initialize the arrayelt helper
+    */
+   if (!ctx->aelt_context &&
+       !_ae_create_context( ctx )) {
+      return GL_FALSE;
+   }
+
+   /* TODO: remove these pointers.
+    */
+   vbo->legacy_currval = &vbo->currval[VBO_ATTRIB_POS];
+   vbo->generic_currval = &vbo->currval[VBO_ATTRIB_GENERIC0];
+   vbo->mat_currval = &vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT];
+
+   init_legacy_currval( ctx );
+   init_generic_currval( ctx );
+   init_mat_currval( ctx );
+
+   /* Build mappings from VERT_ATTRIB -> VBO_ATTRIB depending on type
+    * of vertex program active.
+    */
+   {
+      GLuint i;
+
+      /* When no vertex program, pull in the material attributes in
+       * the 16..32 generic range.
+       */
+      for (i = 0; i < 16; i++) 
+	 vbo->map_vp_none[i] = i;
+      for (i = 0; i < 12; i++) 
+	 vbo->map_vp_none[16+i] = VBO_ATTRIB_MAT_FRONT_AMBIENT + i;
+      for (i = 0; i < 4; i++)
+	 vbo->map_vp_none[28+i] = i;	
+      
+      for (i = 0; i < Elements(vbo->map_vp_arb); i++)
+	 vbo->map_vp_arb[i] = i;
+   }
+
+
+   /* By default: 
+    */
+#if 0 /* dead - see vbo_set_draw_func() */
+   vbo->draw_prims = _tnl_draw_prims;
+#endif
+
+   /* Hook our functions into exec and compile dispatch tables.  These
+    * will pretty much be permanently installed, which means that the
+    * vtxfmt mechanism can be removed now.
+    */
+   vbo_exec_init( ctx );
+#if FEATURE_dlist
+   vbo_save_init( ctx );
+#endif
+
+   _math_init_eval();
+
+   return GL_TRUE;
+}
+
+void _vbo_InvalidateState( GLcontext *ctx, GLuint new_state )
+{
+   _ae_invalidate_state(ctx, new_state);
+   vbo_exec_invalidate_state(ctx, new_state);
+}
+
+
+void _vbo_DestroyContext( GLcontext *ctx )
+{
+   if (ctx->aelt_context) {
+      _ae_destroy_context( ctx );
+      ctx->aelt_context = NULL;
+   }
+
+   if (vbo_context(ctx)) {
+      vbo_exec_destroy(ctx);
+#if FEATURE_dlist
+      vbo_save_destroy(ctx);
+#endif
+      FREE(vbo_context(ctx));
+      ctx->swtnl_im = NULL;
+   }
+}
+
+
+void vbo_set_draw_func(GLcontext *ctx, vbo_draw_func func)
+{
+   struct vbo_context *vbo = vbo_context(ctx);
+   vbo->draw_prims = func;
+}
+