st_program.h revision ffb7d02154186402f64e0b628998485309774bb8 
1/**************************************************************************
2 *
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 /*
29  * Authors:
30  *   Keith Whitwell <keith@tungstengraphics.com>
31  */
32
33
34#ifndef ST_PROGRAM_H
35#define ST_PROGRAM_H
36
37#include "main/mtypes.h"
38#include "program/program.h"
39#include "pipe/p_state.h"
40#include "st_context.h"
41#include "st_glsl_to_tgsi.h"
42
43
44/** Fragment program variant key */
45struct st_fp_variant_key
46{
47   struct st_context *st;         /**< variants are per-context */
48
49   /** for glBitmap */
50   GLuint bitmap:1;               /**< glBitmap variant? */
51
52   /** for glDrawPixels */
53   GLuint drawpixels:1;           /**< glDrawPixels variant */
54   GLuint scaleAndBias:1;         /**< glDrawPixels w/ scale and/or bias? */
55   GLuint pixelMaps:1;            /**< glDrawPixels w/ pixel lookup map? */
56   GLuint drawpixels_z:1;         /**< glDrawPixels(GL_DEPTH) */
57   GLuint drawpixels_stencil:1;   /**< glDrawPixels(GL_STENCIL) */
58};
59
60
61/**
62 * Variant of a fragment program.
63 */
64struct st_fp_variant
65{
66   /** Parameters which generated this version of fragment program */
67   struct st_fp_variant_key key;
68
69   /** Driver's compiled shader */
70   void *driver_shader;
71
72   /** For glBitmap variants */
73   struct gl_program_parameter_list *parameters;
74   uint bitmap_sampler;
75
76   /** next in linked list */
77   struct st_fp_variant *next;
78};
79
80
81/**
82 * Derived from Mesa gl_fragment_program:
83 */
84struct st_fragment_program
85{
86   struct gl_fragment_program Base;
87   struct glsl_to_tgsi_visitor* glsl_to_tgsi;
88
89   struct pipe_shader_state tgsi;
90
91   struct st_fp_variant *variants;
92};
93
94
95
96/** Vertex program variant key */
97struct st_vp_variant_key
98{
99   struct st_context *st;          /**< variants are per-context */
100   boolean passthrough_edgeflags;
101};
102
103
104/**
105 * This represents a vertex program, especially translated to match
106 * the inputs of a particular fragment shader.
107 */
108struct st_vp_variant
109{
110   /* Parameters which generated this translated version of a vertex
111    * shader:
112    */
113   struct st_vp_variant_key key;
114
115   /**
116    * TGSI tokens (to later generate a 'draw' module shader for
117    * selection/feedback/rasterpos)
118    */
119   struct pipe_shader_state tgsi;
120
121   /** Driver's compiled shader */
122   void *driver_shader;
123
124   /** For using our private draw module (glRasterPos) */
125   struct draw_vertex_shader *draw_shader;
126
127   /** Next in linked list */
128   struct st_vp_variant *next;
129
130   /** similar to that in st_vertex_program, but with edgeflags info too */
131   GLuint num_inputs;
132};
133
134
135/**
136 * Derived from Mesa gl_fragment_program:
137 */
138struct st_vertex_program
139{
140   struct gl_vertex_program Base;  /**< The Mesa vertex program */
141   struct glsl_to_tgsi_visitor* glsl_to_tgsi;
142
143   /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
144   GLuint input_to_index[VERT_ATTRIB_MAX];
145   /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
146   GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
147   GLuint num_inputs;
148
149   /** Maps VERT_RESULT_x to slot */
150   GLuint result_to_output[VERT_RESULT_MAX];
151   ubyte output_semantic_name[VERT_RESULT_MAX];
152   ubyte output_semantic_index[VERT_RESULT_MAX];
153   GLuint num_outputs;
154
155   /** List of translated variants of this vertex program.
156    */
157   struct st_vp_variant *variants;
158};
159
160
161
162/** Geometry program variant key */
163struct st_gp_variant_key
164{
165   struct st_context *st;          /**< variants are per-context */
166   /* no other fields yet */
167};
168
169
170/**
171 * Geometry program variant.
172 */
173struct st_gp_variant
174{
175   /* Parameters which generated this translated version of a vertex */
176   struct st_gp_variant_key key;
177
178   void *driver_shader;
179
180   struct st_gp_variant *next;
181};
182
183
184/**
185 * Derived from Mesa gl_geometry_program:
186 */
187struct st_geometry_program
188{
189   struct gl_geometry_program Base;  /**< The Mesa geometry program */
190   struct glsl_to_tgsi_visitor* glsl_to_tgsi;
191
192   /** map GP input back to VP output */
193   GLuint input_map[PIPE_MAX_SHADER_INPUTS];
194
195   /** maps a Mesa GEOM_ATTRIB_x to a packed TGSI input index */
196   GLuint input_to_index[GEOM_ATTRIB_MAX];
197   /** maps a TGSI input index back to a Mesa GEOM_ATTRIB_x */
198   GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
199
200   GLuint num_inputs;
201
202   GLuint input_to_slot[GEOM_ATTRIB_MAX];  /**< Maps GEOM_ATTRIB_x to slot */
203   GLuint num_input_slots;
204
205   ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
206   ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
207
208   struct pipe_shader_state tgsi;
209
210   struct st_gp_variant *variants;
211};
212
213
214
215static INLINE struct st_fragment_program *
216st_fragment_program( struct gl_fragment_program *fp )
217{
218   return (struct st_fragment_program *)fp;
219}
220
221
222static INLINE struct st_vertex_program *
223st_vertex_program( struct gl_vertex_program *vp )
224{
225   return (struct st_vertex_program *)vp;
226}
227
228static INLINE struct st_geometry_program *
229st_geometry_program( struct gl_geometry_program *gp )
230{
231   return (struct st_geometry_program *)gp;
232}
233
234static INLINE void
235st_reference_vertprog(struct st_context *st,
236                      struct st_vertex_program **ptr,
237                      struct st_vertex_program *prog)
238{
239   _mesa_reference_program(st->ctx,
240                           (struct gl_program **) ptr,
241                           (struct gl_program *) prog);
242}
243
244static INLINE void
245st_reference_geomprog(struct st_context *st,
246                      struct st_geometry_program **ptr,
247                      struct st_geometry_program *prog)
248{
249   _mesa_reference_program(st->ctx,
250                           (struct gl_program **) ptr,
251                           (struct gl_program *) prog);
252}
253
254static INLINE void
255st_reference_fragprog(struct st_context *st,
256                      struct st_fragment_program **ptr,
257                      struct st_fragment_program *prog)
258{
259   _mesa_reference_program(st->ctx,
260                           (struct gl_program **) ptr,
261                           (struct gl_program *) prog);
262}
263
264
265extern struct st_vp_variant *
266st_get_vp_variant(struct st_context *st,
267                  struct st_vertex_program *stvp,
268                  const struct st_vp_variant_key *key);
269
270
271extern struct st_fp_variant *
272st_get_fp_variant(struct st_context *st,
273                  struct st_fragment_program *stfp,
274                  const struct st_fp_variant_key *key);
275
276
277extern struct st_gp_variant *
278st_get_gp_variant(struct st_context *st,
279                  struct st_geometry_program *stgp,
280                  const struct st_gp_variant_key *key);
281
282
283extern void
284st_prepare_vertex_program(struct gl_context *ctx,
285                          struct st_vertex_program *stvp);
286
287extern GLboolean
288st_prepare_fragment_program(struct gl_context *ctx,
289                            struct st_fragment_program *stfp);
290
291
292extern void
293st_release_vp_variants( struct st_context *st,
294                        struct st_vertex_program *stvp );
295
296extern void
297st_release_fp_variants( struct st_context *st,
298                        struct st_fragment_program *stfp );
299
300extern void
301st_release_gp_variants(struct st_context *st,
302                       struct st_geometry_program *stgp);
303
304
305extern void
306st_print_shaders(struct gl_context *ctx);
307
308extern void
309st_destroy_program_variants(struct st_context *st);
310
311
312#endif
313