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      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 (at) 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 #include "st_atifs_to_tgsi.h"
     50 
     51 
     52 /**
     53  * Called via ctx->Driver.NewProgram() to allocate a new vertex or
     54  * fragment program.
     55  */
     56 static struct gl_program *
     57 st_new_program(struct gl_context *ctx, GLenum target, GLuint id,
     58                bool is_arb_asm)
     59 {
     60    switch (target) {
     61    case GL_VERTEX_PROGRAM_ARB: {
     62       struct st_vertex_program *prog = rzalloc(NULL,
     63                                                struct st_vertex_program);
     64       return _mesa_init_gl_program(&prog->Base, target, id, is_arb_asm);
     65    }
     66    case GL_FRAGMENT_PROGRAM_ARB: {
     67       struct st_fragment_program *prog = rzalloc(NULL,
     68                                                  struct st_fragment_program);
     69       return _mesa_init_gl_program(&prog->Base, target, id, is_arb_asm);
     70    }
     71    case GL_TESS_CONTROL_PROGRAM_NV:
     72    case GL_TESS_EVALUATION_PROGRAM_NV:
     73    case GL_GEOMETRY_PROGRAM_NV: {
     74       struct st_common_program *prog = rzalloc(NULL,
     75                                                struct st_common_program);
     76       return _mesa_init_gl_program(&prog->Base, target, id, is_arb_asm);
     77    }
     78    case GL_COMPUTE_PROGRAM_NV: {
     79       struct st_compute_program *prog = rzalloc(NULL,
     80                                                 struct st_compute_program);
     81       return _mesa_init_gl_program(&prog->Base, target, id, is_arb_asm);
     82    }
     83    default:
     84       assert(0);
     85       return NULL;
     86    }
     87 }
     88 
     89 
     90 /**
     91  * Called via ctx->Driver.DeleteProgram()
     92  */
     93 static void
     94 st_delete_program(struct gl_context *ctx, struct gl_program *prog)
     95 {
     96    struct st_context *st = st_context(ctx);
     97 
     98    switch( prog->Target ) {
     99    case GL_VERTEX_PROGRAM_ARB:
    100       {
    101          struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
    102          st_release_vp_variants( st, stvp );
    103 
    104          if (stvp->glsl_to_tgsi)
    105             free_glsl_to_tgsi_visitor(stvp->glsl_to_tgsi);
    106       }
    107       break;
    108    case GL_TESS_CONTROL_PROGRAM_NV:
    109    case GL_TESS_EVALUATION_PROGRAM_NV:
    110    case GL_GEOMETRY_PROGRAM_NV:
    111       {
    112          struct st_common_program *p = st_common_program(prog);
    113 
    114          st_release_basic_variants(st, p->Base.Target, &p->variants,
    115                                    &p->tgsi);
    116 
    117          if (p->glsl_to_tgsi)
    118             free_glsl_to_tgsi_visitor(p->glsl_to_tgsi);
    119       }
    120       break;
    121    case GL_FRAGMENT_PROGRAM_ARB:
    122       {
    123          struct st_fragment_program *stfp =
    124             (struct st_fragment_program *) prog;
    125 
    126          st_release_fp_variants(st, stfp);
    127 
    128          if (stfp->glsl_to_tgsi)
    129             free_glsl_to_tgsi_visitor(stfp->glsl_to_tgsi);
    130       }
    131       break;
    132    case GL_COMPUTE_PROGRAM_NV:
    133       {
    134          struct st_compute_program *stcp =
    135             (struct st_compute_program *) prog;
    136 
    137          st_release_cp_variants(st, stcp);
    138 
    139          if (stcp->glsl_to_tgsi)
    140             free_glsl_to_tgsi_visitor(stcp->glsl_to_tgsi);
    141       }
    142       break;
    143    default:
    144       assert(0); /* problem */
    145    }
    146 
    147    /* delete base class */
    148    _mesa_delete_program( ctx, prog );
    149 }
    150 
    151 
    152 /**
    153  * Called via ctx->Driver.ProgramStringNotify()
    154  * Called when the program's text/code is changed.  We have to free
    155  * all shader variants and corresponding gallium shaders when this happens.
    156  */
    157 static GLboolean
    158 st_program_string_notify( struct gl_context *ctx,
    159                                            GLenum target,
    160                                            struct gl_program *prog )
    161 {
    162    struct st_context *st = st_context(ctx);
    163    gl_shader_stage stage = _mesa_program_enum_to_shader_stage(target);
    164 
    165    if (target == GL_FRAGMENT_PROGRAM_ARB) {
    166       struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
    167 
    168       st_release_fp_variants(st, stfp);
    169       if (!st_translate_fragment_program(st, stfp))
    170          return false;
    171 
    172       if (st->fp == stfp)
    173 	 st->dirty |= stfp->affected_states;
    174    }
    175    else if (target == GL_GEOMETRY_PROGRAM_NV) {
    176       struct st_common_program *stgp = st_common_program(prog);
    177 
    178       st_release_basic_variants(st, stgp->Base.Target, &stgp->variants,
    179                                 &stgp->tgsi);
    180       if (!st_translate_geometry_program(st, stgp))
    181          return false;
    182 
    183       if (st->gp == stgp)
    184 	 st->dirty |= stgp->affected_states;
    185    }
    186    else if (target == GL_VERTEX_PROGRAM_ARB) {
    187       struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
    188 
    189       st_release_vp_variants(st, stvp);
    190       if (!st_translate_vertex_program(st, stvp))
    191          return false;
    192 
    193       if (st->vp == stvp)
    194 	 st->dirty |= ST_NEW_VERTEX_PROGRAM(st, stvp);
    195    }
    196    else if (target == GL_TESS_CONTROL_PROGRAM_NV) {
    197       struct st_common_program *sttcp =
    198          st_common_program(prog);
    199 
    200       st_release_basic_variants(st, sttcp->Base.Target, &sttcp->variants,
    201                                 &sttcp->tgsi);
    202       if (!st_translate_tessctrl_program(st, sttcp))
    203          return false;
    204 
    205       if (st->tcp == sttcp)
    206          st->dirty |= sttcp->affected_states;
    207    }
    208    else if (target == GL_TESS_EVALUATION_PROGRAM_NV) {
    209       struct st_common_program *sttep =
    210          st_common_program(prog);
    211 
    212       st_release_basic_variants(st, sttep->Base.Target, &sttep->variants,
    213                                 &sttep->tgsi);
    214       if (!st_translate_tesseval_program(st, sttep))
    215          return false;
    216 
    217       if (st->tep == sttep)
    218          st->dirty |= sttep->affected_states;
    219    }
    220    else if (target == GL_COMPUTE_PROGRAM_NV) {
    221       struct st_compute_program *stcp =
    222          (struct st_compute_program *) prog;
    223 
    224       st_release_cp_variants(st, stcp);
    225       if (!st_translate_compute_program(st, stcp))
    226          return false;
    227 
    228       if (st->cp == stcp)
    229          st->dirty |= stcp->affected_states;
    230    }
    231    else if (target == GL_FRAGMENT_SHADER_ATI) {
    232       assert(prog);
    233 
    234       struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
    235       assert(stfp->ati_fs);
    236       assert(stfp->ati_fs->Program == prog);
    237 
    238       st_init_atifs_prog(ctx, prog);
    239 
    240       st_release_fp_variants(st, stfp);
    241       if (!st_translate_fragment_program(st, stfp))
    242          return false;
    243 
    244       if (st->fp == stfp)
    245          st->dirty |= stfp->affected_states;
    246    }
    247 
    248    if (ST_DEBUG & DEBUG_PRECOMPILE ||
    249        st->shader_has_one_variant[stage])
    250       st_precompile_shader_variant(st, prog);
    251 
    252    return GL_TRUE;
    253 }
    254 
    255 /**
    256  * Called via ctx->Driver.NewATIfs()
    257  * Called in glEndFragmentShaderATI()
    258  */
    259 static struct gl_program *
    260 st_new_ati_fs(struct gl_context *ctx, struct ati_fragment_shader *curProg)
    261 {
    262    struct gl_program *prog = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
    263          curProg->Id, true);
    264    struct st_fragment_program *stfp = (struct st_fragment_program *)prog;
    265    stfp->ati_fs = curProg;
    266    return prog;
    267 }
    268 
    269 /**
    270  * Plug in the program and shader-related device driver functions.
    271  */
    272 void
    273 st_init_program_functions(struct dd_function_table *functions)
    274 {
    275    functions->NewProgram = st_new_program;
    276    functions->DeleteProgram = st_delete_program;
    277    functions->ProgramStringNotify = st_program_string_notify;
    278    functions->NewATIfs = st_new_ati_fs;
    279 
    280    functions->LinkShader = st_link_shader;
    281 }
    282