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_variant_key
  45 {
  46    struct st_context *st;         /**< variants are per-context */
  47
  48    /** for glBitmap */
  49    GLuint bitmap:1;               /**< glBitmap variant? */
  50
  51    /** for glDrawPixels */
  52    GLuint drawpixels:1;           /**< glDrawPixels variant */
  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_variant
  64 {
  65    /** Parameters which generated this version of fragment program */
  66    struct st_fp_variant_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_variant *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_variant *variants;
  90 };
  91
  92
  93
  94 /** Vertex program variant key */
  95 struct st_vp_variant_key
  96 {
  97    struct st_context *st;          /**< variants are per-context */
  98    boolean passthrough_edgeflags;
  99 };
 100
 101
 102 /**
 103  * This represents a vertex program, especially translated to match
 104  * the inputs of a particular fragment shader.
 105  */
 106 struct st_vp_variant
 107 {
 108    /* Parameters which generated this translated version of a vertex
 109     * shader:
 110     */
 111    struct st_vp_variant_key key;
 112
 113    /**
 114     * TGSI tokens (to later generate a 'draw' module shader for
 115     * selection/feedback/rasterpos)
 116     */
 117    struct pipe_shader_state tgsi;
 118
 119    /** Driver's compiled shader */
 120    void *driver_shader;
 121
 122    /** For using our private draw module (glRasterPos) */
 123    struct draw_vertex_shader *draw_shader;
 124
 125    /** Next in linked list */
 126    struct st_vp_variant *next;
 127
 128    /** similar to that in st_vertex_program, but with edgeflags info too */
 129    GLuint num_inputs;
 130 };
 131
 132
 133 /**
 134  * Derived from Mesa gl_fragment_program:
 135  */
 136 struct st_vertex_program
 137 {
 138    struct gl_vertex_program Base;  /**< The Mesa vertex program */
 139
 140    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
 141    GLuint input_to_index[VERT_ATTRIB_MAX];
 142    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 143    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 144    GLuint num_inputs;
 145
 146    /** Maps VERT_RESULT_x to slot */
 147    GLuint result_to_output[VERT_RESULT_MAX];
 148    ubyte output_semantic_name[VERT_RESULT_MAX];
 149    ubyte output_semantic_index[VERT_RESULT_MAX];
 150    GLuint num_outputs;
 151
 152    /** List of translated variants of this vertex program.
 153     */
 154    struct st_vp_variant *variants;
 155 };
 156
 157
 158
 159 /** Geometry program variant key */
 160 struct st_gp_variant_key
 161 {
 162    struct st_context *st;          /**< variants are per-context */
 163    /* no other fields yet */
 164 };
 165
 166
 167 /**
 168  * Geometry program variant.
 169  */
 170 struct st_gp_variant
 171 {
 172    /* Parameters which generated this translated version of a vertex */
 173    struct st_gp_variant_key key;
 174
 175    void *driver_shader;
 176
 177    struct st_gp_variant *next;
 178 };
 179
 180
 181 /**
 182  * Derived from Mesa gl_geometry_program:
 183  */
 184 struct st_geometry_program
 185 {
 186    struct gl_geometry_program Base;  /**< The Mesa geometry program */
 187
 188    /** map GP input back to VP output */
 189    GLuint input_map[PIPE_MAX_SHADER_INPUTS];
 190
 191    /** maps a Mesa GEOM_ATTRIB_x to a packed TGSI input index */
 192    GLuint input_to_index[GEOM_ATTRIB_MAX];
 193    /** maps a TGSI input index back to a Mesa GEOM_ATTRIB_x */
 194    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 195
 196    GLuint num_inputs;
 197
 198    GLuint input_to_slot[GEOM_ATTRIB_MAX];  /**< Maps GEOM_ATTRIB_x to slot */
 199    GLuint num_input_slots;
 200
 201    ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
 202    ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
 203
 204    struct pipe_shader_state tgsi;
 205
 206    struct st_gp_variant *variants;
 207 };
 208
 209
 210
 211 static INLINE struct st_fragment_program *
 212 st_fragment_program( struct gl_fragment_program *fp )
 213 {
 214    return (struct st_fragment_program *)fp;
 215 }
 216
 217
 218 static INLINE struct st_vertex_program *
 219 st_vertex_program( struct gl_vertex_program *vp )
 220 {
 221    return (struct st_vertex_program *)vp;
 222 }
 223
 224 static INLINE struct st_geometry_program *
 225 st_geometry_program( struct gl_geometry_program *gp )
 226 {
 227    return (struct st_geometry_program *)gp;
 228 }
 229
 230 static INLINE void
 231 st_reference_vertprog(struct st_context *st,
 232                       struct st_vertex_program **ptr,
 233                       struct st_vertex_program *prog)
 234 {
 235    _mesa_reference_program(st->ctx,
 236                            (struct gl_program **) ptr,
 237                            (struct gl_program *) prog);
 238 }
 239
 240 static INLINE void
 241 st_reference_geomprog(struct st_context *st,
 242                       struct st_geometry_program **ptr,
 243                       struct st_geometry_program *prog)
 244 {
 245    _mesa_reference_program(st->ctx,
 246                            (struct gl_program **) ptr,
 247                            (struct gl_program *) prog);
 248 }
 249
 250 static INLINE void
 251 st_reference_fragprog(struct st_context *st,
 252                       struct st_fragment_program **ptr,
 253                       struct st_fragment_program *prog)
 254 {
 255    _mesa_reference_program(st->ctx,
 256                            (struct gl_program **) ptr,
 257                            (struct gl_program *) prog);
 258 }
 259
 260
 261 extern struct st_vp_variant *
 262 st_get_vp_variant(struct st_context *st,
 263                   struct st_vertex_program *stvp,
 264                   const struct st_vp_variant_key *key);
 265
 266
 267 extern struct st_fp_variant *
 268 st_get_fp_variant(struct st_context *st,
 269                   struct st_fragment_program *stfp,
 270                   const struct st_fp_variant_key *key);
 271
 272
 273 extern struct st_gp_variant *
 274 st_get_gp_variant(struct st_context *st,
 275                   struct st_geometry_program *stgp,
 276                   const struct st_gp_variant_key *key);
 277
 278
 279
 280 extern void
 281 st_release_vp_variants( struct st_context *st,
 282                         struct st_vertex_program *stvp );
 283
 284 extern void
 285 st_release_fp_variants( struct st_context *st,
 286                         struct st_fragment_program *stfp );
 287
 288 extern void
 289 st_release_gp_variants(struct st_context *st,
 290                        struct st_geometry_program *stgp);
 291
 292
 293 extern void
 294 st_print_shaders(struct gl_context *ctx);
 295
 296 extern void
 297 st_destroy_program_variants(struct st_context *st);
 298
 299
 300 #endif