Clone vf module.

1 files changed, 249 insertions, 0 deletions

diff --git a/src/mesa/pipe/draw/draw_vf.h b/src/mesa/pipe/draw/draw_vf.h
new file mode 100644
index 0000000000..279570aad5
--- /dev/null
+++ b/src/mesa/pipe/draw/draw_vf.h
@@ -0,0 +1,249 @@
+/*
+ * Copyright 2003 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.
+ *
+ * Authors:
+ *    Keith Whitwell <keithw@tungstengraphics.com>
+ */
+
+#ifndef DRAW_VF_H
+#define DRAW_VF_H
+
+
+#include "pipe/p_compiler.h"
+#include "math/m_vector.h"
+
+
+enum {
+   DRAW_VF_ATTRIB_POS = 0,
+   DRAW_VF_ATTRIB_WEIGHT = 1,
+   DRAW_VF_ATTRIB_NORMAL = 2,
+   DRAW_VF_ATTRIB_COLOR0 = 3,
+   DRAW_VF_ATTRIB_COLOR1 = 4,
+   DRAW_VF_ATTRIB_FOG = 5,
+   DRAW_VF_ATTRIB_COLOR_INDEX = 6,
+   DRAW_VF_ATTRIB_EDGEFLAG = 7,
+   DRAW_VF_ATTRIB_TEX0 = 8,
+   DRAW_VF_ATTRIB_TEX1 = 9,
+   DRAW_VF_ATTRIB_TEX2 = 10,
+   DRAW_VF_ATTRIB_TEX3 = 11,
+   DRAW_VF_ATTRIB_TEX4 = 12,
+   DRAW_VF_ATTRIB_TEX5 = 13,
+   DRAW_VF_ATTRIB_TEX6 = 14,
+   DRAW_VF_ATTRIB_TEX7 = 15,
+   DRAW_VF_ATTRIB_VAR0 = 16,
+   DRAW_VF_ATTRIB_VAR1 = 17,
+   DRAW_VF_ATTRIB_VAR2 = 18,
+   DRAW_VF_ATTRIB_VAR3 = 19,
+   DRAW_VF_ATTRIB_VAR4 = 20,
+   DRAW_VF_ATTRIB_VAR5 = 21,
+   DRAW_VF_ATTRIB_VAR6 = 22,
+   DRAW_VF_ATTRIB_VAR7 = 23,
+   DRAW_VF_ATTRIB_POINTSIZE = 24,
+   DRAW_VF_ATTRIB_BFC0 = 25,
+   DRAW_VF_ATTRIB_BFC1 = 26,
+   DRAW_VF_ATTRIB_CLIP_POS = 27,
+   DRAW_VF_ATTRIB_VERTEX_HEADER = 28,
+   DRAW_VF_ATTRIB_MAX = 29
+};
+
+enum draw_vf_attr_format {
+   EMIT_1F,
+   EMIT_2F,
+   EMIT_3F,
+   EMIT_4F,
+   EMIT_2F_VIEWPORT,		/**< do viewport transform and emit */
+   EMIT_3F_VIEWPORT,		/**< do viewport transform and emit */
+   EMIT_4F_VIEWPORT,		/**< do viewport transform and emit */
+   EMIT_3F_XYW,			/**< for projective texture */
+   EMIT_1UB_1F,			/**< for fog coordinate */
+   EMIT_3UB_3F_RGB,		/**< for specular color */
+   EMIT_3UB_3F_BGR,		/**< for specular color */
+   EMIT_4UB_4F_RGBA,		/**< for color */
+   EMIT_4UB_4F_BGRA,		/**< for color */
+   EMIT_4UB_4F_ARGB,		/**< for color */
+   EMIT_4UB_4F_ABGR,		/**< for color */
+   EMIT_4CHAN_4F_RGBA,		/**< for swrast color */
+   EMIT_PAD,			/**< leave a hole of 'offset' bytes */
+   EMIT_MAX
+};
+
+struct draw_vf_attr_map {
+   unsigned attrib;
+   enum draw_vf_attr_format format;
+   unsigned offset;
+};
+
+struct draw_vertex_fetch;
+
+
+void 
+draw_vf_set_vp_matrix( struct draw_vertex_fetch *vf,
+                       const float *viewport );
+
+void 
+draw_vf_set_vp_scale_translate( struct draw_vertex_fetch *vf,
+				const float *scale,
+				const float *translate );
+
+unsigned 
+draw_vf_set_vertex_attributes( struct draw_vertex_fetch *vf,
+                               const struct draw_vf_attr_map *map,
+                               unsigned nr, 
+                               unsigned vertex_stride );
+
+void 
+draw_vf_set_sources( struct draw_vertex_fetch *vf,
+		     GLvector4f * const attrib[],
+		     unsigned start ); 
+
+void 
+draw_vf_emit_vertices( struct draw_vertex_fetch *vf,
+		       unsigned count,
+		       void *dest );
+
+void 
+draw_vf_get_attr( struct draw_vertex_fetch *vf,
+		  const void *vertex,
+		  GLenum attr, 
+		  const float *dflt,
+		  float *dest );
+
+struct draw_vertex_fetch *
+draw_vf_create( boolean allow_viewport_emits );
+
+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 */
+
+   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[DRAW_VF_ATTRIB_MAX];
+   unsigned attr_count;
+   unsigned vertex_stride;
+
+   struct draw_vf_attr *lookup[DRAW_VF_ATTRIB_MAX];
+   
+   draw_vf_emit_func emit;
+
+   /* Parameters and constants for codegen:
+    */
+   boolean allow_viewport_emits;
+   float vp[8];		
+   float chan_scale[4];
+   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;
+};
+
+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 );
+
+
+struct draw_vf_format_info {
+   const char *name;
+   draw_vf_extract_func extract;
+   draw_vf_insert_func insert[4];
+   const unsigned attrsize;
+};
+
+const struct draw_vf_format_info draw_vf_format_info[EMIT_MAX];
+
+
+#endif