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 #include "st_glsl_to_tgsi.h"
  42
  43
  44 /** Fragment program variant key */
  45 struct 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  */
  64 struct 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  */
  84 struct st_fragment_program
  85 {
  86    struct gl_fragment_program Base;
  87    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
  88
  89    /** maps a Mesa FRAG_ATTRIB_x to a packed TGSI input index */
  90    GLuint input_to_index[FRAG_ATTRIB_MAX];
  91    /** maps a TGSI input index back to a Mesa FRAG_ATTRIB_x */
  92    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
  93    ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
  94    ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
  95    GLuint num_inputs;
  96    GLuint interp_mode[PIPE_MAX_SHADER_INPUTS];  /* XXX size? */
  97
  98    /** Maps FRAG_RESULT_x to slot */
  99    GLuint result_to_output[FRAG_RESULT_MAX];
 100    ubyte output_semantic_name[FRAG_RESULT_MAX];
 101    ubyte output_semantic_index[FRAG_RESULT_MAX];
 102    GLuint num_outputs;
 103
 104    struct pipe_shader_state tgsi;
 105
 106    struct st_fp_variant *variants;
 107 };
 108
 109
 110
 111 /** Vertex program variant key */
 112 struct st_vp_variant_key
 113 {
 114    struct st_context *st;          /**< variants are per-context */
 115    boolean passthrough_edgeflags;
 116 };
 117
 118
 119 /**
 120  * This represents a vertex program, especially translated to match
 121  * the inputs of a particular fragment shader.
 122  */
 123 struct st_vp_variant
 124 {
 125    /* Parameters which generated this translated version of a vertex
 126     * shader:
 127     */
 128    struct st_vp_variant_key key;
 129
 130    /**
 131     * TGSI tokens (to later generate a 'draw' module shader for
 132     * selection/feedback/rasterpos)
 133     */
 134    struct pipe_shader_state tgsi;
 135
 136    /** Driver's compiled shader */
 137    void *driver_shader;
 138
 139    /** For using our private draw module (glRasterPos) */
 140    struct draw_vertex_shader *draw_shader;
 141
 142    /** Next in linked list */
 143    struct st_vp_variant *next;
 144
 145    /** similar to that in st_vertex_program, but with edgeflags info too */
 146    GLuint num_inputs;
 147 };
 148
 149
 150 /**
 151  * Derived from Mesa gl_fragment_program:
 152  */
 153 struct st_vertex_program
 154 {
 155    struct gl_vertex_program Base;  /**< The Mesa vertex program */
 156    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 157
 158    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
 159    GLuint input_to_index[VERT_ATTRIB_MAX];
 160    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 161    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 162    GLuint num_inputs;
 163
 164    /** Maps VERT_RESULT_x to slot */
 165    GLuint result_to_output[VERT_RESULT_MAX];
 166    ubyte output_semantic_name[VERT_RESULT_MAX];
 167    ubyte output_semantic_index[VERT_RESULT_MAX];
 168    GLuint num_outputs;
 169
 170    /** List of translated variants of this vertex program.
 171     */
 172    struct st_vp_variant *variants;
 173 };
 174
 175
 176
 177 /** Geometry program variant key */
 178 struct st_gp_variant_key
 179 {
 180    struct st_context *st;          /**< variants are per-context */
 181    /* no other fields yet */
 182 };
 183
 184
 185 /**
 186  * Geometry program variant.
 187  */
 188 struct st_gp_variant
 189 {
 190    /* Parameters which generated this translated version of a vertex */
 191    struct st_gp_variant_key key;
 192
 193    void *driver_shader;
 194
 195    struct st_gp_variant *next;
 196 };
 197
 198
 199 /**
 200  * Derived from Mesa gl_geometry_program:
 201  */
 202 struct st_geometry_program
 203 {
 204    struct gl_geometry_program Base;  /**< The Mesa geometry program */
 205    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 206
 207    /** map GP input back to VP output */
 208    GLuint input_map[PIPE_MAX_SHADER_INPUTS];
 209
 210    /** maps a Mesa GEOM_ATTRIB_x to a packed TGSI input index */
 211    GLuint input_to_index[GEOM_ATTRIB_MAX];
 212    /** maps a TGSI input index back to a Mesa GEOM_ATTRIB_x */
 213    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 214
 215    GLuint num_inputs;
 216
 217    GLuint input_to_slot[GEOM_ATTRIB_MAX];  /**< Maps GEOM_ATTRIB_x to slot */
 218    GLuint num_input_slots;
 219
 220    ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
 221    ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
 222
 223    struct pipe_shader_state tgsi;
 224
 225    struct st_gp_variant *variants;
 226 };
 227
 228
 229
 230 static INLINE struct st_fragment_program *
 231 st_fragment_program( struct gl_fragment_program *fp )
 232 {
 233    return (struct st_fragment_program *)fp;
 234 }
 235
 236
 237 static INLINE struct st_vertex_program *
 238 st_vertex_program( struct gl_vertex_program *vp )
 239 {
 240    return (struct st_vertex_program *)vp;
 241 }
 242
 243 static INLINE struct st_geometry_program *
 244 st_geometry_program( struct gl_geometry_program *gp )
 245 {
 246    return (struct st_geometry_program *)gp;
 247 }
 248
 249 static INLINE void
 250 st_reference_vertprog(struct st_context *st,
 251                       struct st_vertex_program **ptr,
 252                       struct st_vertex_program *prog)
 253 {
 254    _mesa_reference_program(st->ctx,
 255                            (struct gl_program **) ptr,
 256                            (struct gl_program *) prog);
 257 }
 258
 259 static INLINE void
 260 st_reference_geomprog(struct st_context *st,
 261                       struct st_geometry_program **ptr,
 262                       struct st_geometry_program *prog)
 263 {
 264    _mesa_reference_program(st->ctx,
 265                            (struct gl_program **) ptr,
 266                            (struct gl_program *) prog);
 267 }
 268
 269 static INLINE void
 270 st_reference_fragprog(struct st_context *st,
 271                       struct st_fragment_program **ptr,
 272                       struct st_fragment_program *prog)
 273 {
 274    _mesa_reference_program(st->ctx,
 275                            (struct gl_program **) ptr,
 276                            (struct gl_program *) prog);
 277 }
 278
 279
 280 extern struct st_vp_variant *
 281 st_get_vp_variant(struct st_context *st,
 282                   struct st_vertex_program *stvp,
 283                   const struct st_vp_variant_key *key);
 284
 285
 286 extern struct st_fp_variant *
 287 st_get_fp_variant(struct st_context *st,
 288                   struct st_fragment_program *stfp,
 289                   const struct st_fp_variant_key *key);
 290
 291
 292 extern struct st_gp_variant *
 293 st_get_gp_variant(struct st_context *st,
 294                   struct st_geometry_program *stgp,
 295                   const struct st_gp_variant_key *key);
 296
 297
 298 extern void
 299 st_prepare_vertex_program(struct gl_context *ctx,
 300                           struct st_vertex_program *stvp);
 301
 302 extern GLboolean
 303 st_prepare_fragment_program(struct gl_context *ctx,
 304                             struct st_fragment_program *stfp);
 305
 306
 307 extern void
 308 st_release_vp_variants( struct st_context *st,
 309                         struct st_vertex_program *stvp );
 310
 311 extern void
 312 st_release_fp_variants( struct st_context *st,
 313                         struct st_fragment_program *stfp );
 314
 315 extern void
 316 st_release_gp_variants(struct st_context *st,
 317                        struct st_geometry_program *stgp);
 318
 319
 320 extern void
 321 st_print_shaders(struct gl_context *ctx);
 322
 323 extern void
 324 st_destroy_program_variants(struct st_context *st);
 325
 326
 327 #endif