Code reorganization: move files into their places.

This is in a separate commit to ensure renames are properly preserved.

1 files changed, 346 insertions, 0 deletions

diff --git a/src/gallium/aux/draw/draw_private.h b/src/gallium/aux/draw/draw_private.h
new file mode 100644
index 00000000000..b17eaaed65e
--- /dev/null
+++ b/src/gallium/aux/draw/draw_private.h
@@ -0,0 +1,346 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 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 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 ITS 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.
+ * 
+ **************************************************************************/
+
+/**
+ * Private data structures, etc for the draw module.
+ */
+
+
+/**
+ * Authors:
+ * Keith Whitwell <[email protected]>
+ * Brian Paul
+ */
+
+
+#ifndef DRAW_PRIVATE_H
+#define DRAW_PRIVATE_H
+
+
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+
+#include "x86/rtasm/x86sse.h"
+#include "pipe/tgsi/exec/tgsi_exec.h"
+
+
+struct gallivm_prog;
+struct gallivm_cpu_engine;
+
+/**
+ * Basic vertex info.
+ * Carry some useful information around with the vertices in the prim pipe.  
+ */
+struct vertex_header {
+   unsigned clipmask:12;
+   unsigned edgeflag:1;
+   unsigned pad:3;
+   unsigned vertex_id:16;
+
+   float clip[4];
+
+   float data[][4];		/* Note variable size */
+};
+
+/* NOTE: It should match vertex_id size above */
+#define UNDEFINED_VERTEX_ID 0xffff
+
+/* XXX This is too large */
+#define MAX_VERTEX_SIZE ((2 + PIPE_MAX_SHADER_OUTPUTS) * 4 * sizeof(float))
+
+
+
+/**
+ * Basic info for a point/line/triangle primitive.
+ */
+struct prim_header {
+   float det;                 /**< front/back face determinant */
+   unsigned reset_line_stipple:1;
+   unsigned edgeflags:3;
+   unsigned pad:28;
+   struct vertex_header *v[3];  /**< 1 to 3 vertex pointers */
+};
+
+
+
+struct draw_context;
+
+/**
+ * Base class for all primitive drawing stages.
+ */
+struct draw_stage
+{
+   struct draw_context *draw;   /**< parent context */
+
+   struct draw_stage *next;     /**< next stage in pipeline */
+
+   struct vertex_header **tmp;  /**< temp vert storage, such as for clipping */
+   unsigned nr_tmps;
+
+   void (*point)( struct draw_stage *,
+		  struct prim_header * );
+
+   void (*line)( struct draw_stage *,
+		 struct prim_header * );
+
+   void (*tri)( struct draw_stage *,
+		struct prim_header * );
+
+   void (*flush)( struct draw_stage *,
+		  unsigned flags );
+
+   void (*reset_stipple_counter)( struct draw_stage * );
+
+   void (*destroy)( struct draw_stage * );
+};
+
+
+#define PRIM_QUEUE_LENGTH      16
+#define VCACHE_SIZE            32
+#define VCACHE_OVERFLOW        4
+#define VS_QUEUE_LENGTH        (VCACHE_SIZE + VCACHE_OVERFLOW + 1)	/* can never fill up */
+
+/**
+ * Private version of the compiled vertex_shader
+ */
+struct draw_vertex_shader {
+   const struct pipe_shader_state   *state;
+#if defined(__i386__) || defined(__386__)
+   struct x86_function              sse2_program;
+#endif
+#ifdef MESA_LLVM
+   struct gallivm_prog *llvm_prog;
+#endif
+};
+
+
+/* Internal function for vertex fetch.
+ */
+typedef void (*fetch_func)(const void *ptr, float *attrib);
+typedef void (*full_fetch_func)( struct draw_context *draw,
+				 struct tgsi_exec_machine *machine,
+				 const unsigned *elts,
+				 unsigned count );
+
+
+
+/**
+ * Private context for the drawing module.
+ */
+struct draw_context
+{
+   /** Drawing/primitive pipeline stages */
+   struct {
+      struct draw_stage *first;  /**< one of the following */
+
+      struct draw_stage *validate; 
+
+      /* stages (in logical order) */
+      struct draw_stage *flatshade;
+      struct draw_stage *clip;
+      struct draw_stage *cull;
+      struct draw_stage *twoside;
+      struct draw_stage *offset;
+      struct draw_stage *unfilled;
+      struct draw_stage *stipple;
+      struct draw_stage *wide;
+      struct draw_stage *rasterize;
+   } pipeline;
+
+   /* pipe state that we need: */
+   const struct pipe_rasterizer_state *rasterizer;
+   struct pipe_viewport_state viewport;
+   struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX];
+   struct pipe_vertex_element vertex_element[PIPE_ATTRIB_MAX];
+   const struct draw_vertex_shader *vertex_shader;
+
+   uint num_vs_outputs;  /**< convenience, from vertex_shader */
+
+   /* user-space vertex data, buffers */
+   struct {
+      /** vertex element/index buffer (ex: glDrawElements) */
+      const void *elts;
+      /** bytes per index (0, 1, 2 or 4) */
+      unsigned eltSize;
+
+      /** vertex arrays */
+      const void *vbuffer[PIPE_ATTRIB_MAX];
+
+      /** constant buffer (for vertex shader) */
+      const void *constants;
+   } user;
+
+   /* Clip derived state:
+    */
+   float plane[12][4];
+   unsigned nr_planes;
+
+   boolean convert_wide_points; /**< convert wide points to tris? */
+   boolean convert_wide_lines;  /**< convert side lines to tris? */
+
+   unsigned reduced_prim;
+
+   /** TGSI program interpreter runtime state */
+   struct tgsi_exec_machine machine;
+
+   /* Vertex fetch internal state
+    */
+   struct {
+      const ubyte *src_ptr[PIPE_ATTRIB_MAX];
+      unsigned pitch[PIPE_ATTRIB_MAX];
+      fetch_func fetch[PIPE_ATTRIB_MAX];
+      unsigned nr_attrs;
+      full_fetch_func fetch_func;
+   } vertex_fetch;
+
+   /* Post-tnl vertex cache:
+    */
+   struct {
+      unsigned referenced;  /**< bitfield */
+      unsigned idx[VCACHE_SIZE + VCACHE_OVERFLOW];
+      struct vertex_header *vertex[VCACHE_SIZE + VCACHE_OVERFLOW];
+      unsigned overflow;
+
+      /** To find space in the vertex cache: */
+      struct vertex_header *(*get_vertex)( struct draw_context *draw,
+                                           unsigned i );
+   } vcache;
+
+   /* Vertex shader queue:
+    */
+   struct {
+      struct {
+	 unsigned elt;   /**< index into the user's vertex arrays */
+	 struct vertex_header *dest; /**< points into vcache.vertex[] array */
+      } queue[VS_QUEUE_LENGTH];
+      unsigned queue_nr;
+   } vs;
+
+   /**
+    * Run the vertex shader on all vertices in the vertex queue.
+    */
+   void (*shader_queue_flush)(struct draw_context *draw);
+
+   /* Prim pipeline queue:
+    */
+   struct {
+      /* Need to queue up primitives until their vertices have been
+       * transformed by a vs queue flush.
+       */
+      struct prim_header queue[PRIM_QUEUE_LENGTH];
+      unsigned queue_nr;
+   } pq;
+
+   int use_sse : 1;
+#ifdef MESA_LLVM
+   struct gallivm_cpu_engine *engine;
+#endif
+   
+   void *driver_private;
+};
+
+
+
+extern struct draw_stage *draw_unfilled_stage( struct draw_context *context );
+extern struct draw_stage *draw_twoside_stage( struct draw_context *context );
+extern struct draw_stage *draw_offset_stage( struct draw_context *context );
+extern struct draw_stage *draw_clip_stage( struct draw_context *context );
+extern struct draw_stage *draw_flatshade_stage( struct draw_context *context );
+extern struct draw_stage *draw_cull_stage( struct draw_context *context );
+extern struct draw_stage *draw_stipple_stage( struct draw_context *context );
+extern struct draw_stage *draw_wide_stage( struct draw_context *context );
+extern struct draw_stage *draw_validate_stage( struct draw_context *context );
+
+
+extern void draw_free_temp_verts( struct draw_stage *stage );
+
+extern void draw_alloc_temp_verts( struct draw_stage *stage, unsigned nr );
+
+extern void draw_reset_vertex_ids( struct draw_context *draw );
+
+
+extern int draw_vertex_cache_check_space( struct draw_context *draw, 
+					  unsigned nr_verts );
+
+extern void draw_vertex_cache_invalidate( struct draw_context *draw );
+extern void draw_vertex_cache_unreference( struct draw_context *draw );
+extern void draw_vertex_cache_reset_vertex_ids( struct draw_context *draw );
+
+
+extern void draw_vertex_shader_queue_flush( struct draw_context *draw );
+#ifdef MESA_LLVM
+extern void draw_vertex_shader_queue_flush_llvm( struct draw_context *draw );
+#endif
+
+struct tgsi_exec_machine;
+
+extern void draw_update_vertex_fetch( struct draw_context *draw );
+
+
+#define DRAW_FLUSH_SHADER_QUEUE              0x1 /* sized not to overflow, never raised */
+#define DRAW_FLUSH_PRIM_QUEUE                0x2
+#define DRAW_FLUSH_VERTEX_CACHE              0x4
+#define DRAW_FLUSH_STATE_CHANGE              0x8
+#define DRAW_FLUSH_BACKEND                   0x10
+
+
+void draw_do_flush( struct draw_context *draw, unsigned flags );
+
+
+
+/**
+ * Get a writeable copy of a vertex.
+ * \param stage  drawing stage info
+ * \param vert  the vertex to copy (source)
+ * \param idx  index into stage's tmp[] array to put the copy (dest)
+ * \return  pointer to the copied vertex
+ */
+static INLINE struct vertex_header *
+dup_vert( struct draw_stage *stage,
+	  const struct vertex_header *vert,
+	  unsigned idx )
+{   
+   struct vertex_header *tmp = stage->tmp[idx];
+   const uint vsize = sizeof(struct vertex_header)
+      + stage->draw->num_vs_outputs * 4 * sizeof(float);
+   memcpy(tmp, vert, vsize);
+   tmp->vertex_id = UNDEFINED_VERTEX_ID;
+   return tmp;
+}
+
+static INLINE float
+dot4(const float *a, const float *b)
+{
+   float result = (a[0]*b[0] +
+                   a[1]*b[1] +
+                   a[2]*b[2] +
+                   a[3]*b[3]);
+
+   return result;
+}
+
+#endif /* DRAW_PRIVATE_H */