Merge commit 'origin/gallium-0.1' into gallium-0.1

1 files changed, 236 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/draw/draw_vf.h b/src/gallium/auxiliary/draw/draw_vf.h
new file mode 100644
index 00000000000..011c8f0ff1c
--- /dev/null
+++ b/src/gallium/auxiliary/draw/draw_vf.h
@@ -0,0 +1,236 @@
+/*
+ * Copyright 2008 Tungsten Graphics, inc.
+ * 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.
+ */
+
+
+/**
+ * Vertex fetch/store/convert code.  This functionality is used in two places:
+ * 1. Vertex fetch/convert - to grab vertex data from incoming vertex
+ *    arrays and convert to format needed by vertex shaders.
+ * 2. Vertex store/emit - to convert simple float[][4] vertex attributes
+ *    (which is the organization used throughout the draw/prim pipeline) to
+ *    hardware-specific formats and emit into hardware vertex buffers.
+ *
+ *
+ * Authors:
+ *    Keith Whitwell <[email protected]>
+ */
+
+#ifndef DRAW_VF_H
+#define DRAW_VF_H
+
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_state.h"
+
+#include "draw_vertex.h"
+#include "draw_private.h" /* for vertex_header */
+
+
+enum draw_vf_attr_format {
+   DRAW_EMIT_1F,
+   DRAW_EMIT_2F,
+   DRAW_EMIT_3F,
+   DRAW_EMIT_4F,
+   DRAW_EMIT_3F_XYW,			/**< for projective texture */
+   DRAW_EMIT_1UB_1F,			/**< for fog coordinate */
+   DRAW_EMIT_3UB_3F_RGB,		/**< for specular color */
+   DRAW_EMIT_3UB_3F_BGR,		/**< for specular color */
+   DRAW_EMIT_4UB_4F_RGBA,		/**< for color */
+   DRAW_EMIT_4UB_4F_BGRA,		/**< for color */
+   DRAW_EMIT_4UB_4F_ARGB,		/**< for color */
+   DRAW_EMIT_4UB_4F_ABGR,		/**< for color */
+   DRAW_EMIT_1F_CONST,
+   DRAW_EMIT_2F_CONST,
+   DRAW_EMIT_3F_CONST,
+   DRAW_EMIT_4F_CONST,
+   DRAW_EMIT_PAD,			/**< leave a hole of 'offset' bytes */
+   DRAW_EMIT_MAX
+};
+
+struct draw_vf_attr_map 
+{
+   /** Input attribute number */
+   unsigned attrib;
+   
+   enum draw_vf_attr_format format;
+   
+   unsigned offset;
+   
+   /** 
+    * Constant data for DRAW_EMIT_*_CONST 
+    */
+   union {
+      uint8_t ub[4];
+      float f[4];
+   } data;
+};
+
+struct draw_vertex_fetch;
+
+
+
+#if 0
+unsigned 
+draw_vf_set_vertex_attributes( struct draw_vertex_fetch *vf,
+                               const struct draw_vf_attr_map *map,
+                               unsigned nr, 
+                               unsigned vertex_stride );
+#endif
+
+void draw_vf_set_vertex_info( struct draw_vertex_fetch *vf, 
+                              const struct vertex_info *vinfo,
+                              float point_size );
+
+#if 0
+void 
+draw_vf_set_sources( struct draw_vertex_fetch *vf,
+		     GLvector4f * const attrib[],
+		     unsigned start );
+#endif
+
+void 
+draw_vf_emit_vertex( struct draw_vertex_fetch *vf,
+                     struct vertex_header *vertex,
+                     void *dest );
+
+struct draw_vertex_fetch *
+draw_vf_create( void );
+
+void 
+draw_vf_destroy( struct draw_vertex_fetch *vf );
+
+
+
+/***********************************************************************
+ * Internal functions and structs:
+ */
+
+struct draw_vf_attr;
+
+typedef void (*draw_vf_extract_func)( const struct draw_vf_attr *a, 
+				      float *out, 
+				      const uint8_t *v );
+
+typedef void (*draw_vf_insert_func)( const struct draw_vf_attr *a, 
+				     uint8_t *v, 
+				     const float *in );
+
+typedef void (*draw_vf_emit_func)( struct draw_vertex_fetch *vf,
+      				   unsigned count, 
+      				   uint8_t *dest );
+
+
+
+/**
+ * Describes how to convert/move a vertex attribute from a vertex
+ * array to a vertex structure.
+ */
+struct draw_vf_attr
+{
+   struct draw_vertex_fetch *vf;
+
+   unsigned format;
+   unsigned inputsize;
+   unsigned inputstride;
+   unsigned vertoffset;      /**< position of the attrib in the vertex struct */
+   
+   boolean isconst;              /**< read from const data below */
+   uint8_t data[16];
+
+   unsigned attrib;          /**< which vertex attrib (0=position, etc) */
+   unsigned vertattrsize;    /**< size of the attribute in bytes */
+
+   uint8_t *inputptr;
+   const draw_vf_insert_func *insert;
+   draw_vf_insert_func do_insert;
+   draw_vf_extract_func extract;
+};
+
+struct draw_vertex_fetch
+{
+   struct draw_vf_attr attr[PIPE_ATTRIB_MAX];
+   unsigned attr_count;
+   unsigned vertex_stride;
+
+   draw_vf_emit_func emit;
+
+   /* Parameters and constants for codegen:
+    */
+   float identity[4];
+
+   struct draw_vf_fastpath *fastpath;
+   
+   void (*codegen_emit)( struct draw_vertex_fetch *vf );
+};
+
+
+struct draw_vf_attr_type {
+   unsigned format;
+   unsigned size;
+   unsigned stride;
+   unsigned offset;
+};
+
+/** XXX this could be moved into draw_vf.c */
+struct draw_vf_fastpath {
+   unsigned vertex_stride;
+   unsigned attr_count;
+   boolean match_strides;
+
+   struct draw_vf_attr_type *attr;
+
+   draw_vf_emit_func func;
+   struct draw_vf_fastpath *next;
+};
+
+
+void 
+draw_vf_register_fastpath( struct draw_vertex_fetch *vtx,
+                           boolean match_strides );
+
+void 
+draw_vf_generic_emit( struct draw_vertex_fetch *vf,
+                      unsigned count,
+                      uint8_t *v );
+
+void 
+draw_vf_generate_hardwired_emit( struct draw_vertex_fetch *vf );
+
+void 
+draw_vf_generate_sse_emit( struct draw_vertex_fetch *vf );
+
+
+/** XXX this type and function could probably be moved into draw_vf.c */
+struct draw_vf_format_info {
+   const char *name;
+   draw_vf_insert_func insert[4];
+   const unsigned attrsize;
+   const boolean isconst;
+};
+
+extern const struct draw_vf_format_info 
+draw_vf_format_info[DRAW_EMIT_MAX];
+
+
+#endif