Checkpoint of new vbo-building code. Currently builds regular arrays

rather than VBO's - VBOs are easy but need to look closer at the
driver interface.  The trivial/tri demo works.

1 files changed, 175 insertions, 0 deletions

diff --git a/src/mesa/vbo/vbo_exec.h b/src/mesa/vbo/vbo_exec.h
new file mode 100644
index 0000000000..4542d2807c
--- /dev/null
+++ b/src/mesa/vbo/vbo_exec.h
@@ -0,0 +1,175 @@
+/**************************************************************************
+
+Copyright 2002 Tungsten Graphics Inc., Cedar Park, Texas.
+
+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
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, 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 (including the next
+paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS 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>
+ *
+ */
+
+#ifndef __VBO_EXEC_H__
+#define __VBO_EXEC_H__
+
+#include "mtypes.h"
+#include "vbo_attrib.h"
+
+
+#define VBO_MAX_PRIM 64
+
+/* Wierd implementation stuff:
+ */
+#define VBO_VERT_BUFFER_SIZE (1024*16)	/* dwords == 64k */
+#define VBO_MAX_ATTR_CODEGEN 16 
+#define ERROR_ATTRIB 16
+
+
+
+
+struct vbo_exec_eval1_map {
+   struct gl_1d_map *map;
+   GLuint sz;
+};
+
+struct vbo_exec_eval2_map {
+   struct gl_2d_map *map;
+   GLuint sz;
+};
+
+
+
+struct vbo_exec_copied_vtx {
+   GLfloat buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS];
+   GLuint nr;
+};
+
+
+typedef void (*vbo_attrfv_func)( const GLfloat * );
+
+
+struct vbo_exec_context
+{
+   GLcontext *ctx;   
+   GLvertexformat vtxfmt;
+
+   struct gl_client_array legacy_currval[16];
+   struct gl_client_array generic_currval[16];
+   struct gl_client_array mat_currval[16];
+
+   struct {
+      struct gl_buffer_object *bufferobj;
+      GLubyte *buffer_map;
+
+      GLuint vertex_size;
+
+      struct _mesa_prim prim[VBO_MAX_PRIM];
+      GLuint prim_count;
+
+      GLfloat *vbptr;		     /* cursor, points into buffer */
+      GLfloat vertex[VBO_ATTRIB_MAX*4]; /* current vertex */
+
+      GLfloat *current[VBO_ATTRIB_MAX]; /* points into ctx->Current, ctx->Light.Material */
+      GLfloat CurrentFloatEdgeFlag;
+
+      GLuint vert_count;
+      GLuint max_vert;
+      struct vbo_exec_copied_vtx copied;
+
+      GLubyte attrsz[VBO_ATTRIB_MAX];
+      GLubyte active_sz[VBO_ATTRIB_MAX];
+
+      GLfloat *attrptr[VBO_ATTRIB_MAX]; 
+      struct gl_client_array arrays[VBO_ATTRIB_MAX];
+
+      /* According to program mode, the values above plus current
+       * values are squashed down to the 32 attributes passed to the
+       * vertex program below:
+       */
+      GLuint program_mode;
+      GLuint enabled_flags;
+      const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
+   } vtx;
+
+   
+   struct {
+      GLboolean recalculate_maps;
+      struct vbo_exec_eval1_map map1[VERT_ATTRIB_MAX];
+      struct vbo_exec_eval2_map map2[VERT_ATTRIB_MAX];
+   } eval;
+
+   struct {
+      GLuint program_mode;
+      GLuint enabled_flags;
+      GLuint array_obj;
+
+      /* These just mirror the current arrayobj (todo: make arrayobj
+       * look like this and remove the mirror):
+       */
+      const struct gl_client_array *legacy_array[16];
+      const struct gl_client_array *generic_array[16];
+
+      /* Arrays and current values manipulated according to program
+       * mode, etc.  These are the attributes as seen by vertex
+       * programs:
+       */
+      const struct gl_client_array *inputs[VERT_ATTRIB_MAX];
+
+
+      struct gl_buffer_object *index_obj;
+   } array;
+};
+
+
+
+/* External API:
+ */
+void vbo_exec_init( GLcontext *ctx );
+void vbo_exec_destroy( GLcontext *ctx );
+void vbo_exec_invalidate_state( GLcontext *ctx, GLuint new_state );
+void vbo_exec_FlushVertices( GLcontext *ctx, GLuint flags );
+void vbo_exec_wakeup( GLcontext *ctx );
+
+
+/* Internal functions:
+ */
+void vbo_exec_array_init( struct vbo_exec_context *exec );
+void vbo_exec_array_destroy( struct vbo_exec_context *exec );
+
+
+void vbo_exec_vtx_init( struct vbo_exec_context *exec );
+void vbo_exec_vtx_destroy( struct vbo_exec_context *exec );
+void vbo_exec_vtx_flush( struct vbo_exec_context *exec );
+void vbo_exec_vtx_wrap( struct vbo_exec_context *exec );
+
+void vbo_exec_eval_update( struct vbo_exec_context *exec );
+
+void vbo_exec_do_EvalCoord2f( struct vbo_exec_context *exec, 
+				     GLfloat u, GLfloat v );
+
+void vbo_exec_do_EvalCoord1f( struct vbo_exec_context *exec,
+				     GLfloat u);
+
+#endif