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_ir.h"
  49 #include "st_atifs_to_tgsi.h"
  50 #include "st_util.h"
  51
  52
  53 /**
  54  * Called via ctx->Driver.NewProgram() to allocate a new vertex or
  55  * fragment program.
  56  */
  57 static struct gl_program *
  58 st_new_program(struct gl_context *ctx, GLenum target, GLuint id,
  59                bool is_arb_asm)
  60 {
  61    switch (target) {
  62    case GL_VERTEX_PROGRAM_ARB: {
  63       struct st_common_program *prog = rzalloc(NULL,
  64                                                struct st_common_program);
  65       return _mesa_init_gl_program(&prog->Base, target, id, is_arb_asm);
  66    }
  67    case GL_TESS_CONTROL_PROGRAM_NV:
  68    case GL_TESS_EVALUATION_PROGRAM_NV:
  69    case GL_GEOMETRY_PROGRAM_NV:
  70    case GL_FRAGMENT_PROGRAM_ARB:
  71    case GL_COMPUTE_PROGRAM_NV: {
  72       struct st_common_program *prog = rzalloc(NULL,
  73                                                struct st_common_program);
  74       return _mesa_init_gl_program(&prog->Base, target, id, is_arb_asm);
  75    }
  76    default:
  77       assert(0);
  78       return NULL;
  79    }
  80 }
  81
  82
  83 /**
  84  * Called via ctx->Driver.DeleteProgram()
  85  */
  86 static void
  87 st_delete_program(struct gl_context *ctx, struct gl_program *prog)
  88 {
  89    struct st_context *st = st_context(ctx);
  90
  91    switch( prog->Target ) {
  92    case GL_VERTEX_PROGRAM_ARB:
  93       {
  94          struct st_common_program *stvp = (struct st_common_program *) prog;
  95          st_release_vp_variants( st, stvp );
  96
  97          if (stvp->glsl_to_tgsi)
  98             free_glsl_to_tgsi_visitor(stvp->glsl_to_tgsi);
  99       }
 100       break;
 101    case GL_TESS_CONTROL_PROGRAM_NV:
 102    case GL_TESS_EVALUATION_PROGRAM_NV:
 103    case GL_GEOMETRY_PROGRAM_NV:
 104    case GL_FRAGMENT_PROGRAM_ARB:
 105    case GL_COMPUTE_PROGRAM_NV:
 106       {
 107          struct st_common_program *p = st_common_program(prog);
 108
 109          if (prog->Target == GL_FRAGMENT_PROGRAM_ARB)
 110             st_release_fp_variants(st, p);
 111          else
 112             st_release_common_variants(st, p);
 113
 114          if (p->glsl_to_tgsi)
 115             free_glsl_to_tgsi_visitor(p->glsl_to_tgsi);
 116       }
 117       break;
 118    default:
 119       assert(0); /* problem */
 120    }
 121
 122    /* delete base class */
 123    _mesa_delete_program( ctx, prog );
 124 }
 125
 126 /**
 127  * Called via ctx->Driver.ProgramStringNotify()
 128  * Called when the program's text/code is changed.  We have to free
 129  * all shader variants and corresponding gallium shaders when this happens.
 130  */
 131 static GLboolean
 132 st_program_string_notify( struct gl_context *ctx,
 133                                            GLenum target,
 134                                            struct gl_program *prog )
 135 {
 136    struct st_context *st = st_context(ctx);
 137
 138    if (target == GL_FRAGMENT_PROGRAM_ARB ||
 139        target == GL_FRAGMENT_SHADER_ATI) {
 140       struct st_common_program *stfp = (struct st_common_program *) prog;
 141
 142       if (target == GL_FRAGMENT_SHADER_ATI) {
 143          assert(stfp->ati_fs);
 144          assert(stfp->ati_fs->Program == prog);
 145
 146          st_init_atifs_prog(ctx, prog);
 147       }
 148
 149       st_release_fp_variants(st, stfp);
 150       if (!stfp->shader_program && /* not GLSL->NIR */
 151           !st_translate_fragment_program(st, stfp))
 152          return false;
 153    } else if (target == GL_VERTEX_PROGRAM_ARB) {
 154       struct st_common_program *stvp = (struct st_common_program *) prog;
 155
 156       st_release_vp_variants(st, stvp);
 157       if (!stvp->shader_program && /* not GLSL->NIR */
 158           !st_translate_vertex_program(st, stvp))
 159          return false;
 160    } else {
 161       struct st_common_program *stcp = st_common_program(prog);
 162
 163       st_release_common_variants(st, stcp);
 164       if (!stcp->shader_program && /* not GLSL->NIR */
 165           !st_translate_common_program(st, stcp))
 166          return false;
 167    }
 168
 169    st_finalize_program(st, prog);
 170    return GL_TRUE;
 171 }
 172
 173 /**
 174  * Called via ctx->Driver.NewATIfs()
 175  * Called in glEndFragmentShaderATI()
 176  */
 177 static struct gl_program *
 178 st_new_ati_fs(struct gl_context *ctx, struct ati_fragment_shader *curProg)
 179 {
 180    struct gl_program *prog = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
 181          curProg->Id, true);
 182    struct st_common_program *stfp = (struct st_common_program *)prog;
 183    stfp->ati_fs = curProg;
 184    return prog;
 185 }
 186
 187 static void
 188 st_max_shader_compiler_threads(struct gl_context *ctx, unsigned count)
 189 {
 190    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 191
 192    if (screen->set_max_shader_compiler_threads)
 193       screen->set_max_shader_compiler_threads(screen, count);
 194 }
 195
 196 static bool
 197 st_get_shader_program_completion_status(struct gl_context *ctx,
 198                                         struct gl_shader_program *shprog)
 199 {
 200    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 201
 202    if (!screen->is_parallel_shader_compilation_finished)
 203       return true;
 204
 205    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 206       struct gl_linked_shader *linked = shprog->_LinkedShaders[i];
 207       void *sh = NULL;
 208
 209       if (!linked || !linked->Program)
 210          continue;
 211
 212       switch (i) {
 213       case MESA_SHADER_VERTEX:
 214          if (st_common_program(linked->Program)->vp_variants)
 215             sh = st_common_program(linked->Program)->vp_variants->driver_shader;
 216          break;
 217       case MESA_SHADER_FRAGMENT:
 218          if (st_common_program(linked->Program)->fp_variants)
 219             sh = st_common_program(linked->Program)->fp_variants->driver_shader;
 220          break;
 221       case MESA_SHADER_TESS_CTRL:
 222       case MESA_SHADER_TESS_EVAL:
 223       case MESA_SHADER_GEOMETRY:
 224       case MESA_SHADER_COMPUTE:
 225          if (st_common_program(linked->Program)->variants)
 226             sh = st_common_program(linked->Program)->variants->driver_shader;
 227          break;
 228       }
 229
 230       unsigned type = pipe_shader_type_from_mesa(i);
 231
 232       if (sh &&
 233           !screen->is_parallel_shader_compilation_finished(screen, sh, type))
 234          return false;
 235    }
 236    return true;
 237 }
 238
 239 /**
 240  * Plug in the program and shader-related device driver functions.
 241  */
 242 void
 243 st_init_program_functions(struct dd_function_table *functions)
 244 {
 245    functions->NewProgram = st_new_program;
 246    functions->DeleteProgram = st_delete_program;
 247    functions->ProgramStringNotify = st_program_string_notify;
 248    functions->NewATIfs = st_new_ati_fs;
 249    functions->LinkShader = st_link_shader;
 250    functions->SetMaxShaderCompilerThreads = st_max_shader_compiler_threads;
 251    functions->GetShaderProgramCompletionStatus =
 252       st_get_shader_program_completion_status;
 253 }