src/mesa/state_tracker/st_program.h

   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
  42
  43 /** Fragment program variant key */
  44 struct st_fp_varient_key
  45 {
  46    struct st_context *st;         /**< variants are per-context */
  47
  48    /** for glBitmap */
  49    GLuint bitmap:1;               /**< glBitmap varient? */
  50
  51    /** for glDrawPixels */
  52    GLuint drawpixels:1;           /**< glDrawPixels varient */
  53    GLuint scaleAndBias:1;         /**< glDrawPixels w/ scale and/or bias? */
  54    GLuint pixelMaps:1;            /**< glDrawPixels w/ pixel lookup map? */
  55    GLuint drawpixels_z:1;         /**< glDrawPixels(GL_DEPTH) */
  56    GLuint drawpixels_stencil:1;   /**< glDrawPixels(GL_STENCIL) */
  57 };
  58
  59
  60 /**
  61  * Variant of a fragment program.
  62  */
  63 struct st_fp_varient
  64 {
  65    /** Parameters which generated this version of fragment program */
  66    struct st_fp_varient_key key;
  67
  68    /** Driver's compiled shader */
  69    void *driver_shader;
  70
  71    /** For glBitmap variants */
  72    struct gl_program_parameter_list *parameters;
  73    uint bitmap_sampler;
  74
  75    /** next in linked list */
  76    struct st_fp_varient *next;
  77 };
  78
  79
  80 /**
  81  * Derived from Mesa gl_fragment_program:
  82  */
  83 struct st_fragment_program
  84 {
  85    struct gl_fragment_program Base;
  86
  87    struct pipe_shader_state tgsi;
  88
  89    struct st_fp_varient *varients;
  90 };
  91
  92
  93
  94 struct st_vp_varient_key
  95 {
  96    struct st_context *st;          /**< variants are per-context */
  97    boolean passthrough_edgeflags;
  98 };
  99
 100
 101 /**
 102  * This represents a vertex program, especially translated to match
 103  * the inputs of a particular fragment shader.
 104  */
 105 struct st_vp_varient
 106 {
 107    /* Parameters which generated this translated version of a vertex
 108     * shader:
 109     */
 110    struct st_vp_varient_key key;
 111
 112    /**
 113     * TGSI tokens (to later generate a 'draw' module shader for
 114     * selection/feedback/rasterpos)
 115     */
 116    struct pipe_shader_state tgsi;
 117
 118    /** Driver's compiled shader */
 119    void *driver_shader;
 120
 121    /** For using our private draw module (glRasterPos) */
 122    struct draw_vertex_shader *draw_shader;
 123
 124    /** Next in linked list */
 125    struct st_vp_varient *next;
 126
 127    /** similar to that in st_vertex_program, but with information about edgeflags too */
 128    GLuint num_inputs;
 129 };
 130
 131
 132 /**
 133  * Derived from Mesa gl_fragment_program:
 134  */
 135 struct st_vertex_program
 136 {
 137    struct gl_vertex_program Base;  /**< The Mesa vertex program */
 138
 139    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
 140    GLuint input_to_index[VERT_ATTRIB_MAX];
 141    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 142    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 143    GLuint num_inputs;
 144
 145    /** Maps VERT_RESULT_x to slot */
 146    GLuint result_to_output[VERT_RESULT_MAX];
 147    ubyte output_semantic_name[VERT_RESULT_MAX];
 148    ubyte output_semantic_index[VERT_RESULT_MAX];
 149    GLuint num_outputs;
 150
 151    /** List of translated varients of this vertex program.
 152     */
 153    struct st_vp_varient *varients;
 154 };
 155
 156
 157
 158 struct st_gp_varient_key
 159 {
 160    struct st_context *st;          /**< variants are per-context */
 161    /* no other fields yet */
 162 };
 163
 164
 165 /**
 166  * Geometry program variant.
 167  */
 168 struct st_gp_varient
 169 {
 170    /* Parameters which generated this translated version of a vertex */
 171    struct st_gp_varient_key key;
 172
 173    void *driver_shader;
 174
 175    struct st_gp_varient *next;
 176 };
 177
 178
 179 /**
 180  * Derived from Mesa gl_geometry_program:
 181  */
 182 struct st_geometry_program
 183 {
 184    struct gl_geometry_program Base;  /**< The Mesa geometry program */
 185
 186    /** map GP input back to VP output */
 187    GLuint input_map[PIPE_MAX_SHADER_INPUTS];
 188
 189    /** maps a Mesa GEOM_ATTRIB_x to a packed TGSI input index */
 190    GLuint input_to_index[GEOM_ATTRIB_MAX];
 191    /** maps a TGSI input index back to a Mesa GEOM_ATTRIB_x */
 192    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 193
 194    GLuint num_inputs;
 195
 196    GLuint input_to_slot[GEOM_ATTRIB_MAX];  /**< Maps GEOM_ATTRIB_x to slot */
 197    GLuint num_input_slots;
 198
 199    ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
 200    ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
 201
 202    struct pipe_shader_state tgsi;
 203
 204    struct st_gp_varient *varients;
 205 };
 206
 207
 208
 209 static INLINE struct st_fragment_program *
 210 st_fragment_program( struct gl_fragment_program *fp )
 211 {
 212    return (struct st_fragment_program *)fp;
 213 }
 214
 215
 216 static INLINE struct st_vertex_program *
 217 st_vertex_program( struct gl_vertex_program *vp )
 218 {
 219    return (struct st_vertex_program *)vp;
 220 }
 221
 222 static INLINE struct st_geometry_program *
 223 st_geometry_program( struct gl_geometry_program *gp )
 224 {
 225    return (struct st_geometry_program *)gp;
 226 }
 227
 228 static INLINE void
 229 st_reference_vertprog(struct st_context *st,
 230                       struct st_vertex_program **ptr,
 231                       struct st_vertex_program *prog)
 232 {
 233    _mesa_reference_program(st->ctx,
 234                            (struct gl_program **) ptr,
 235                            (struct gl_program *) prog);
 236 }
 237
 238 static INLINE void
 239 st_reference_geomprog(struct st_context *st,
 240                       struct st_geometry_program **ptr,
 241                       struct st_geometry_program *prog)
 242 {
 243    _mesa_reference_program(st->ctx,
 244                            (struct gl_program **) ptr,
 245                            (struct gl_program *) prog);
 246 }
 247
 248 static INLINE void
 249 st_reference_fragprog(struct st_context *st,
 250                       struct st_fragment_program **ptr,
 251                       struct st_fragment_program *prog)
 252 {
 253    _mesa_reference_program(st->ctx,
 254                            (struct gl_program **) ptr,
 255                            (struct gl_program *) prog);
 256 }
 257
 258
 259 extern struct st_vp_varient *
 260 st_get_vp_varient(struct st_context *st,
 261                   struct st_vertex_program *stvp,
 262                   const struct st_vp_varient_key *key);
 263
 264
 265 extern struct st_fp_varient *
 266 st_get_fp_varient(struct st_context *st,
 267                   struct st_fragment_program *stfp,
 268                   const struct st_fp_varient_key *key);
 269
 270
 271 extern struct st_gp_varient *
 272 st_get_gp_varient(struct st_context *st,
 273                   struct st_geometry_program *stgp,
 274                   const struct st_gp_varient_key *key);
 275
 276
 277
 278 extern void
 279 st_vp_release_varients( struct st_context *st,
 280                         struct st_vertex_program *stvp );
 281
 282 extern void
 283 st_fp_release_varients( struct st_context *st,
 284                         struct st_fragment_program *stfp );
 285
 286 extern void
 287 st_gp_release_varients(struct st_context *st,
 288                        struct st_geometry_program *stgp);
 289
 290
 291 extern void
 292 st_print_shaders(struct gl_context *ctx);
 293
 294 extern void
 295 st_destroy_program_variants(struct st_context *st);
 296
 297
 298 #endif