src/mesa/state_tracker/st_cb_program.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 VMware, Inc.
   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 VMWARE 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 <keithw@vmware.com>
  31   */
  32
  33 #include "main/glheader.h"
  34 #include "main/macros.h"
  35 #include "main/enums.h"
  36 #include "main/shaderapi.h"
  37 #include "program/prog_instruction.h"
  38 #include "program/program.h"
  39
  40 #include "cso_cache/cso_context.h"
  41 #include "draw/draw_context.h"
  42
  43 #include "st_context.h"
  44 #include "st_debug.h"
  45 #include "st_program.h"
  46 #include "st_mesa_to_tgsi.h"
  47 #include "st_cb_program.h"
  48 #include "st_glsl_to_tgsi.h"
  49
  50
  51
  52 /**
  53  * Called via ctx->Driver.BindProgram() to bind an ARB vertex or
  54  * fragment program.
  55  */
  56 static void
  57 st_bind_program(struct gl_context *ctx, GLenum target, struct gl_program *prog)
  58 {
  59    struct st_context *st = st_context(ctx);
  60
  61    switch (target) {
  62    case GL_VERTEX_PROGRAM_ARB:
  63       st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
  64       break;
  65    case GL_FRAGMENT_PROGRAM_ARB:
  66       st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
  67       break;
  68    case GL_GEOMETRY_PROGRAM_NV:
  69       st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
  70       break;
  71    case GL_TESS_CONTROL_PROGRAM_NV:
  72       st->dirty.st |= ST_NEW_TESSCTRL_PROGRAM;
  73       break;
  74    case GL_TESS_EVALUATION_PROGRAM_NV:
  75       st->dirty.st |= ST_NEW_TESSEVAL_PROGRAM;
  76       break;
  77    }
  78 }
  79
  80
  81 /**
  82  * Called via ctx->Driver.UseProgram() to bind a linked GLSL program
  83  * (vertex shader + fragment shader).
  84  */
  85 static void
  86 st_use_program(struct gl_context *ctx, struct gl_shader_program *shProg)
  87 {
  88    struct st_context *st = st_context(ctx);
  89
  90    st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
  91    st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
  92    st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
  93    st->dirty.st |= ST_NEW_TESSCTRL_PROGRAM;
  94    st->dirty.st |= ST_NEW_TESSEVAL_PROGRAM;
  95 }
  96
  97
  98 /**
  99  * Called via ctx->Driver.NewProgram() to allocate a new vertex or
 100  * fragment program.
 101  */
 102 static struct gl_program *
 103 st_new_program(struct gl_context *ctx, GLenum target, GLuint id)
 104 {
 105    switch (target) {
 106    case GL_VERTEX_PROGRAM_ARB: {
 107       struct st_vertex_program *prog = ST_CALLOC_STRUCT(st_vertex_program);
 108       return _mesa_init_gl_program(&prog->Base.Base, target, id);
 109    }
 110    case GL_FRAGMENT_PROGRAM_ARB: {
 111       struct st_fragment_program *prog = ST_CALLOC_STRUCT(st_fragment_program);
 112       return _mesa_init_gl_program(&prog->Base.Base, target, id);
 113    }
 114    case GL_GEOMETRY_PROGRAM_NV: {
 115       struct st_geometry_program *prog = ST_CALLOC_STRUCT(st_geometry_program);
 116       return _mesa_init_gl_program(&prog->Base.Base, target, id);
 117    }
 118    case GL_TESS_CONTROL_PROGRAM_NV: {
 119       struct st_tessctrl_program *prog = ST_CALLOC_STRUCT(st_tessctrl_program);
 120       return _mesa_init_gl_program(&prog->Base.Base, target, id);
 121    }
 122    case GL_TESS_EVALUATION_PROGRAM_NV: {
 123       struct st_tesseval_program *prog = ST_CALLOC_STRUCT(st_tesseval_program);
 124       return _mesa_init_gl_program(&prog->Base.Base, target, id);
 125    }
 126    default:
 127       assert(0);
 128       return NULL;
 129    }
 130 }
 131
 132
 133 /**
 134  * Called via ctx->Driver.DeleteProgram()
 135  */
 136 static void
 137 st_delete_program(struct gl_context *ctx, struct gl_program *prog)
 138 {
 139    struct st_context *st = st_context(ctx);
 140
 141    switch( prog->Target ) {
 142    case GL_VERTEX_PROGRAM_ARB:
 143       {
 144          struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
 145          st_release_vp_variants( st, stvp );
 146
 147          if (stvp->glsl_to_tgsi)
 148             free_glsl_to_tgsi_visitor(stvp->glsl_to_tgsi);
 149       }
 150       break;
 151    case GL_GEOMETRY_PROGRAM_NV:
 152       {
 153          struct st_geometry_program *stgp =
 154             (struct st_geometry_program *) prog;
 155
 156          st_release_gp_variants(st, stgp);
 157
 158          if (stgp->glsl_to_tgsi)
 159             free_glsl_to_tgsi_visitor(stgp->glsl_to_tgsi);
 160       }
 161       break;
 162    case GL_FRAGMENT_PROGRAM_ARB:
 163       {
 164          struct st_fragment_program *stfp =
 165             (struct st_fragment_program *) prog;
 166
 167          st_release_fp_variants(st, stfp);
 168
 169          if (stfp->glsl_to_tgsi)
 170             free_glsl_to_tgsi_visitor(stfp->glsl_to_tgsi);
 171       }
 172       break;
 173    case GL_TESS_CONTROL_PROGRAM_NV:
 174       {
 175          struct st_tessctrl_program *sttcp =
 176             (struct st_tessctrl_program *) prog;
 177
 178          st_release_tcp_variants(st, sttcp);
 179
 180          if (sttcp->glsl_to_tgsi)
 181             free_glsl_to_tgsi_visitor(sttcp->glsl_to_tgsi);
 182       }
 183       break;
 184    case GL_TESS_EVALUATION_PROGRAM_NV:
 185       {
 186          struct st_tesseval_program *sttep =
 187             (struct st_tesseval_program *) prog;
 188
 189          st_release_tep_variants(st, sttep);
 190
 191          if (sttep->glsl_to_tgsi)
 192             free_glsl_to_tgsi_visitor(sttep->glsl_to_tgsi);
 193       }
 194       break;
 195    default:
 196       assert(0); /* problem */
 197    }
 198
 199    /* delete base class */
 200    _mesa_delete_program( ctx, prog );
 201 }
 202
 203
 204 /**
 205  * Called via ctx->Driver.IsProgramNative()
 206  */
 207 static GLboolean
 208 st_is_program_native(struct gl_context *ctx,
 209                      GLenum target,
 210                      struct gl_program *prog)
 211 {
 212    return GL_TRUE;
 213 }
 214
 215
 216 /**
 217  * Called via ctx->Driver.ProgramStringNotify()
 218  * Called when the program's text/code is changed.  We have to free
 219  * all shader variants and corresponding gallium shaders when this happens.
 220  */
 221 static GLboolean
 222 st_program_string_notify( struct gl_context *ctx,
 223                                            GLenum target,
 224                                            struct gl_program *prog )
 225 {
 226    struct st_context *st = st_context(ctx);
 227
 228    if (target == GL_FRAGMENT_PROGRAM_ARB) {
 229       struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
 230
 231       st_release_fp_variants(st, stfp);
 232       if (!st_translate_fragment_program(st, stfp))
 233          return false;
 234
 235       if (st->fp == stfp)
 236          st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
 237    }
 238    else if (target == GL_GEOMETRY_PROGRAM_NV) {
 239       struct st_geometry_program *stgp = (struct st_geometry_program *) prog;
 240
 241       st_release_gp_variants(st, stgp);
 242       if (!st_translate_geometry_program(st, stgp))
 243          return false;
 244
 245       if (st->gp == stgp)
 246          st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
 247    }
 248    else if (target == GL_VERTEX_PROGRAM_ARB) {
 249       struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
 250
 251       st_release_vp_variants(st, stvp);
 252       if (!st_translate_vertex_program(st, stvp))
 253          return false;
 254
 255       if (st->vp == stvp)
 256          st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
 257    }
 258    else if (target == GL_TESS_CONTROL_PROGRAM_NV) {
 259       struct st_tessctrl_program *sttcp =
 260          (struct st_tessctrl_program *) prog;
 261
 262       st_release_tcp_variants(st, sttcp);
 263       if (!st_translate_tessctrl_program(st, sttcp))
 264          return false;
 265
 266       if (st->tcp == sttcp)
 267          st->dirty.st |= ST_NEW_TESSCTRL_PROGRAM;
 268    }
 269    else if (target == GL_TESS_EVALUATION_PROGRAM_NV) {
 270       struct st_tesseval_program *sttep =
 271          (struct st_tesseval_program *) prog;
 272
 273       st_release_tep_variants(st, sttep);
 274       if (!st_translate_tesseval_program(st, sttep))
 275          return false;
 276
 277       if (st->tep == sttep)
 278          st->dirty.st |= ST_NEW_TESSEVAL_PROGRAM;
 279    }
 280
 281    if (ST_DEBUG & DEBUG_PRECOMPILE)
 282       st_precompile_shader_variant(st, prog);
 283
 284    /* XXX check if program is legal, within limits */
 285    return GL_TRUE;
 286 }
 287
 288
 289 /**
 290  * Plug in the program and shader-related device driver functions.
 291  */
 292 void
 293 st_init_program_functions(struct dd_function_table *functions)
 294 {
 295    functions->BindProgram = st_bind_program;
 296    functions->UseProgram = st_use_program;
 297    functions->NewProgram = st_new_program;
 298    functions->DeleteProgram = st_delete_program;
 299    functions->IsProgramNative = st_is_program_native;
 300    functions->ProgramStringNotify = st_program_string_notify;
 301
 302    functions->LinkShader = st_link_shader;
 303 }