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