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    struct gl_program *prog;
 106
 107    switch (target) {
 108    case GL_VERTEX_PROGRAM_ARB:
 109       prog = (struct gl_program*)ST_CALLOC_STRUCT(st_vertex_program);
 110       break;
 111    case GL_FRAGMENT_PROGRAM_ARB:
 112       prog = (struct gl_program*)ST_CALLOC_STRUCT(st_fragment_program);
 113       break;
 114    case GL_GEOMETRY_PROGRAM_NV:
 115       prog = (struct gl_program*)ST_CALLOC_STRUCT(st_geometry_program);
 116       break;
 117    case GL_TESS_CONTROL_PROGRAM_NV:
 118       prog = (struct gl_program*)ST_CALLOC_STRUCT(st_tessctrl_program);
 119       break;
 120    case GL_TESS_EVALUATION_PROGRAM_NV:
 121       prog = (struct gl_program*)ST_CALLOC_STRUCT(st_tesseval_program);
 122       break;
 123    default:
 124       assert(0);
 125       return NULL;
 126    }
 127    return _mesa_init_gl_program(prog, target, id);
 128 }
 129
 130
 131 /**
 132  * Called via ctx->Driver.DeleteProgram()
 133  */
 134 static void
 135 st_delete_program(struct gl_context *ctx, struct gl_program *prog)
 136 {
 137    struct st_context *st = st_context(ctx);
 138
 139    switch( prog->Target ) {
 140    case GL_VERTEX_PROGRAM_ARB:
 141       {
 142          struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
 143          st_release_vp_variants( st, stvp );
 144
 145          if (stvp->glsl_to_tgsi)
 146             free_glsl_to_tgsi_visitor(stvp->glsl_to_tgsi);
 147       }
 148       break;
 149    case GL_GEOMETRY_PROGRAM_NV:
 150       {
 151          struct st_geometry_program *stgp =
 152             (struct st_geometry_program *) prog;
 153
 154          st_release_gp_variants(st, stgp);
 155
 156          if (stgp->glsl_to_tgsi)
 157             free_glsl_to_tgsi_visitor(stgp->glsl_to_tgsi);
 158       }
 159       break;
 160    case GL_FRAGMENT_PROGRAM_ARB:
 161       {
 162          struct st_fragment_program *stfp =
 163             (struct st_fragment_program *) prog;
 164
 165          st_release_fp_variants(st, stfp);
 166
 167          if (stfp->glsl_to_tgsi)
 168             free_glsl_to_tgsi_visitor(stfp->glsl_to_tgsi);
 169       }
 170       break;
 171    case GL_TESS_CONTROL_PROGRAM_NV:
 172       {
 173          struct st_tessctrl_program *sttcp =
 174             (struct st_tessctrl_program *) prog;
 175
 176          st_release_tcp_variants(st, sttcp);
 177
 178          if (sttcp->glsl_to_tgsi)
 179             free_glsl_to_tgsi_visitor(sttcp->glsl_to_tgsi);
 180       }
 181       break;
 182    case GL_TESS_EVALUATION_PROGRAM_NV:
 183       {
 184          struct st_tesseval_program *sttep =
 185             (struct st_tesseval_program *) prog;
 186
 187          st_release_tep_variants(st, sttep);
 188
 189          if (sttep->glsl_to_tgsi)
 190             free_glsl_to_tgsi_visitor(sttep->glsl_to_tgsi);
 191       }
 192       break;
 193    default:
 194       assert(0); /* problem */
 195    }
 196
 197    /* delete base class */
 198    _mesa_delete_program( ctx, prog );
 199 }
 200
 201
 202 /**
 203  * Called via ctx->Driver.IsProgramNative()
 204  */
 205 static GLboolean
 206 st_is_program_native(struct gl_context *ctx,
 207                      GLenum target,
 208                      struct gl_program *prog)
 209 {
 210    return GL_TRUE;
 211 }
 212
 213
 214 /**
 215  * Called via ctx->Driver.ProgramStringNotify()
 216  * Called when the program's text/code is changed.  We have to free
 217  * all shader variants and corresponding gallium shaders when this happens.
 218  */
 219 static GLboolean
 220 st_program_string_notify( struct gl_context *ctx,
 221                                            GLenum target,
 222                                            struct gl_program *prog )
 223 {
 224    struct st_context *st = st_context(ctx);
 225
 226    if (target == GL_FRAGMENT_PROGRAM_ARB) {
 227       struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
 228
 229       st_release_fp_variants(st, stfp);
 230       if (!st_translate_fragment_program(st, stfp))
 231          return false;
 232
 233       if (st->fp == stfp)
 234          st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
 235    }
 236    else if (target == GL_GEOMETRY_PROGRAM_NV) {
 237       struct st_geometry_program *stgp = (struct st_geometry_program *) prog;
 238
 239       st_release_gp_variants(st, stgp);
 240       if (!st_translate_geometry_program(st, stgp))
 241          return false;
 242
 243       if (st->gp == stgp)
 244          st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
 245    }
 246    else if (target == GL_VERTEX_PROGRAM_ARB) {
 247       struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
 248
 249       st_release_vp_variants(st, stvp);
 250       if (!st_translate_vertex_program(st, stvp))
 251          return false;
 252
 253       if (st->vp == stvp)
 254          st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
 255    }
 256    else if (target == GL_TESS_CONTROL_PROGRAM_NV) {
 257       struct st_tessctrl_program *sttcp =
 258          (struct st_tessctrl_program *) prog;
 259
 260       st_release_tcp_variants(st, sttcp);
 261       if (!st_translate_tessctrl_program(st, sttcp))
 262          return false;
 263
 264       if (st->tcp == sttcp)
 265          st->dirty.st |= ST_NEW_TESSCTRL_PROGRAM;
 266    }
 267    else if (target == GL_TESS_EVALUATION_PROGRAM_NV) {
 268       struct st_tesseval_program *sttep =
 269          (struct st_tesseval_program *) prog;
 270
 271       st_release_tep_variants(st, sttep);
 272       if (!st_translate_tesseval_program(st, sttep))
 273          return false;
 274
 275       if (st->tep == sttep)
 276          st->dirty.st |= ST_NEW_TESSEVAL_PROGRAM;
 277    }
 278
 279    if (ST_DEBUG & DEBUG_PRECOMPILE)
 280       st_precompile_shader_variant(st, prog);
 281
 282    /* XXX check if program is legal, within limits */
 283    return GL_TRUE;
 284 }
 285
 286
 287 /**
 288  * Plug in the program and shader-related device driver functions.
 289  */
 290 void
 291 st_init_program_functions(struct dd_function_table *functions)
 292 {
 293    functions->BindProgram = st_bind_program;
 294    functions->UseProgram = st_use_program;
 295    functions->NewProgram = st_new_program;
 296    functions->DeleteProgram = st_delete_program;
 297    functions->IsProgramNative = st_is_program_native;
 298    functions->ProgramStringNotify = st_program_string_notify;
 299
 300    functions->LinkShader = st_link_shader;
 301 }