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    /** for ARB_color_buffer_float */
  60    GLuint clamp_color:1;
  61 };
  62
  63
  64 /**
  65  * Variant of a fragment program.
  66  */
  67 struct st_fp_variant
  68 {
  69    /** Parameters which generated this version of fragment program */
  70    struct st_fp_variant_key key;
  71
  72    struct pipe_shader_state tgsi;
  73
  74    /** Driver's compiled shader */
  75    void *driver_shader;
  76
  77    /** For glBitmap variants */
  78    struct gl_program_parameter_list *parameters;
  79    uint bitmap_sampler;
  80
  81    /** next in linked list */
  82    struct st_fp_variant *next;
  83 };
  84
  85
  86 /**
  87  * Derived from Mesa gl_fragment_program:
  88  */
  89 struct st_fragment_program
  90 {
  91    struct gl_fragment_program Base;
  92    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
  93
  94    struct st_fp_variant *variants;
  95 };
  96
  97
  98
  99 /** Vertex program variant key */
 100 struct st_vp_variant_key
 101 {
 102    struct st_context *st;          /**< variants are per-context */
 103    boolean passthrough_edgeflags;
 104
 105    /** for ARB_color_buffer_float */
 106    boolean clamp_color;
 107 };
 108
 109
 110 /**
 111  * This represents a vertex program, especially translated to match
 112  * the inputs of a particular fragment shader.
 113  */
 114 struct st_vp_variant
 115 {
 116    /* Parameters which generated this translated version of a vertex
 117     * shader:
 118     */
 119    struct st_vp_variant_key key;
 120
 121    /**
 122     * TGSI tokens (to later generate a 'draw' module shader for
 123     * selection/feedback/rasterpos)
 124     */
 125    struct pipe_shader_state tgsi;
 126
 127    /** Driver's compiled shader */
 128    void *driver_shader;
 129
 130    /** For using our private draw module (glRasterPos) */
 131    struct draw_vertex_shader *draw_shader;
 132
 133    /** Next in linked list */
 134    struct st_vp_variant *next;
 135
 136    /** similar to that in st_vertex_program, but with edgeflags info too */
 137    GLuint num_inputs;
 138 };
 139
 140
 141 /**
 142  * Derived from Mesa gl_fragment_program:
 143  */
 144 struct st_vertex_program
 145 {
 146    struct gl_vertex_program Base;  /**< The Mesa vertex program */
 147    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 148
 149    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
 150    GLuint input_to_index[VERT_ATTRIB_MAX];
 151    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
 152    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 153    GLuint num_inputs;
 154
 155    /** Maps VARYING_SLOT_x to slot */
 156    GLuint result_to_output[VARYING_SLOT_MAX];
 157    ubyte output_semantic_name[VARYING_SLOT_MAX];
 158    ubyte output_semantic_index[VARYING_SLOT_MAX];
 159    GLuint num_outputs;
 160
 161    /** List of translated variants of this vertex program.
 162     */
 163    struct st_vp_variant *variants;
 164 };
 165
 166
 167
 168 /** Geometry program variant key */
 169 struct st_gp_variant_key
 170 {
 171    struct st_context *st;          /**< variants are per-context */
 172    /* no other fields yet */
 173 };
 174
 175
 176 /**
 177  * Geometry program variant.
 178  */
 179 struct st_gp_variant
 180 {
 181    /* Parameters which generated this translated version of a vertex */
 182    struct st_gp_variant_key key;
 183
 184    void *driver_shader;
 185
 186    struct st_gp_variant *next;
 187 };
 188
 189
 190 /**
 191  * Derived from Mesa gl_geometry_program:
 192  */
 193 struct st_geometry_program
 194 {
 195    struct gl_geometry_program Base;  /**< The Mesa geometry program */
 196    struct glsl_to_tgsi_visitor* glsl_to_tgsi;
 197
 198    /** map GP input back to VP output */
 199    GLuint input_map[PIPE_MAX_SHADER_INPUTS];
 200
 201    /** maps a Mesa VARYING_SLOT_x to a packed TGSI input index */
 202    GLuint input_to_index[VARYING_SLOT_MAX];
 203    /** maps a TGSI input index back to a Mesa VARYING_SLOT_x */
 204    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
 205
 206    GLuint num_inputs;
 207
 208    GLuint input_to_slot[VARYING_SLOT_MAX];  /**< Maps VARYING_SLOT_x to slot */
 209    GLuint num_input_slots;
 210
 211    ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
 212    ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
 213
 214    struct pipe_shader_state tgsi;
 215
 216    struct st_gp_variant *variants;
 217 };
 218
 219
 220
 221 static INLINE struct st_fragment_program *
 222 st_fragment_program( struct gl_fragment_program *fp )
 223 {
 224    return (struct st_fragment_program *)fp;
 225 }
 226
 227
 228 static INLINE struct st_vertex_program *
 229 st_vertex_program( struct gl_vertex_program *vp )
 230 {
 231    return (struct st_vertex_program *)vp;
 232 }
 233
 234 static INLINE struct st_geometry_program *
 235 st_geometry_program( struct gl_geometry_program *gp )
 236 {
 237    return (struct st_geometry_program *)gp;
 238 }
 239
 240 static INLINE void
 241 st_reference_vertprog(struct st_context *st,
 242                       struct st_vertex_program **ptr,
 243                       struct st_vertex_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_geomprog(struct st_context *st,
 252                       struct st_geometry_program **ptr,
 253                       struct st_geometry_program *prog)
 254 {
 255    _mesa_reference_program(st->ctx,
 256                            (struct gl_program **) ptr,
 257                            (struct gl_program *) prog);
 258 }
 259
 260 static INLINE void
 261 st_reference_fragprog(struct st_context *st,
 262                       struct st_fragment_program **ptr,
 263                       struct st_fragment_program *prog)
 264 {
 265    _mesa_reference_program(st->ctx,
 266                            (struct gl_program **) ptr,
 267                            (struct gl_program *) prog);
 268 }
 269
 270
 271 extern struct st_vp_variant *
 272 st_get_vp_variant(struct st_context *st,
 273                   struct st_vertex_program *stvp,
 274                   const struct st_vp_variant_key *key);
 275
 276
 277 extern struct st_fp_variant *
 278 st_get_fp_variant(struct st_context *st,
 279                   struct st_fragment_program *stfp,
 280                   const struct st_fp_variant_key *key);
 281
 282
 283 extern struct st_gp_variant *
 284 st_get_gp_variant(struct st_context *st,
 285                   struct st_geometry_program *stgp,
 286                   const struct st_gp_variant_key *key);
 287
 288
 289 extern void
 290 st_prepare_vertex_program(struct gl_context *ctx,
 291                           struct st_vertex_program *stvp);
 292
 293 extern GLboolean
 294 st_prepare_fragment_program(struct gl_context *ctx,
 295                             struct st_fragment_program *stfp);
 296
 297
 298 extern void
 299 st_release_vp_variants( struct st_context *st,
 300                         struct st_vertex_program *stvp );
 301
 302 extern void
 303 st_release_fp_variants( struct st_context *st,
 304                         struct st_fragment_program *stfp );
 305
 306 extern void
 307 st_release_gp_variants(struct st_context *st,
 308                        struct st_geometry_program *stgp);
 309
 310
 311 extern void
 312 st_print_shaders(struct gl_context *ctx);
 313
 314 extern void
 315 st_destroy_program_variants(struct st_context *st);
 316
 317
 318 extern void
 319 st_print_current_vertex_program(void);
 320
 321
 322 #endif