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-rw-r--r--src/mesa/pipe/draw/draw_private.h346
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diff --git a/src/mesa/pipe/draw/draw_private.h b/src/mesa/pipe/draw/draw_private.h
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--- a/src/mesa/pipe/draw/draw_private.h
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-/**************************************************************************
- *
- * 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 <keith@tungstengraphics.com>
- * 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 */
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