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_program *prog = rzalloc(NULL,
  64                                                struct st_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_program *prog = rzalloc(NULL,
  73                                                struct st_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    struct st_program *stp = st_program(prog);
  91
  92    if (prog->Target == GL_VERTEX_PROGRAM_ARB)
  93       st_release_vp_variants(st, stp);
  94    if (prog->Target == GL_FRAGMENT_PROGRAM_ARB)
  95       st_release_fp_variants(st, stp);
  96    else
  97       st_release_common_variants(st, stp);
  98
  99    if (stp->glsl_to_tgsi)
 100       free_glsl_to_tgsi_visitor(stp->glsl_to_tgsi);
 101
 102    /* delete base class */
 103    _mesa_delete_program( ctx, prog );
 104 }
 105
 106 /**
 107  * Called via ctx->Driver.ProgramStringNotify()
 108  * Called when the program's text/code is changed.  We have to free
 109  * all shader variants and corresponding gallium shaders when this happens.
 110  */
 111 static GLboolean
 112 st_program_string_notify( struct gl_context *ctx,
 113                                            GLenum target,
 114                                            struct gl_program *prog )
 115 {
 116    struct st_context *st = st_context(ctx);
 117    struct st_program *stp = (struct st_program *) prog;
 118
 119    if (target == GL_FRAGMENT_PROGRAM_ARB ||
 120        target == GL_FRAGMENT_SHADER_ATI) {
 121       if (target == GL_FRAGMENT_SHADER_ATI) {
 122          assert(stp->ati_fs);
 123          assert(stp->ati_fs->Program == prog);
 124
 125          st_init_atifs_prog(ctx, prog);
 126       }
 127
 128       st_release_fp_variants(st, stp);
 129       if (!stp->shader_program && /* not GLSL->NIR */
 130           !st_translate_fragment_program(st, stp))
 131          return false;
 132    } else if (target == GL_VERTEX_PROGRAM_ARB) {
 133       st_release_vp_variants(st, stp);
 134       if (!stp->shader_program && /* not GLSL->NIR */
 135           !st_translate_vertex_program(st, stp))
 136          return false;
 137    } else {
 138       st_release_common_variants(st, stp);
 139       if (!stp->shader_program && /* not GLSL->NIR */
 140           !st_translate_common_program(st, stp))
 141          return false;
 142    }
 143
 144    st_finalize_program(st, prog);
 145    return GL_TRUE;
 146 }
 147
 148 /**
 149  * Called via ctx->Driver.NewATIfs()
 150  * Called in glEndFragmentShaderATI()
 151  */
 152 static struct gl_program *
 153 st_new_ati_fs(struct gl_context *ctx, struct ati_fragment_shader *curProg)
 154 {
 155    struct gl_program *prog = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
 156          curProg->Id, true);
 157    struct st_program *stfp = (struct st_program *)prog;
 158    stfp->ati_fs = curProg;
 159    return prog;
 160 }
 161
 162 static void
 163 st_max_shader_compiler_threads(struct gl_context *ctx, unsigned count)
 164 {
 165    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 166
 167    if (screen->set_max_shader_compiler_threads)
 168       screen->set_max_shader_compiler_threads(screen, count);
 169 }
 170
 171 static bool
 172 st_get_shader_program_completion_status(struct gl_context *ctx,
 173                                         struct gl_shader_program *shprog)
 174 {
 175    struct pipe_screen *screen = st_context(ctx)->pipe->screen;
 176
 177    if (!screen->is_parallel_shader_compilation_finished)
 178       return true;
 179
 180    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 181       struct gl_linked_shader *linked = shprog->_LinkedShaders[i];
 182       void *sh = NULL;
 183
 184       if (!linked || !linked->Program)
 185          continue;
 186
 187       switch (i) {
 188       case MESA_SHADER_VERTEX:
 189          if (st_program(linked->Program)->vp_variants)
 190             sh = st_program(linked->Program)->vp_variants->driver_shader;
 191          break;
 192       case MESA_SHADER_FRAGMENT:
 193          if (st_program(linked->Program)->fp_variants)
 194             sh = st_program(linked->Program)->fp_variants->driver_shader;
 195          break;
 196       case MESA_SHADER_TESS_CTRL:
 197       case MESA_SHADER_TESS_EVAL:
 198       case MESA_SHADER_GEOMETRY:
 199       case MESA_SHADER_COMPUTE:
 200          if (st_program(linked->Program)->variants)
 201             sh = st_program(linked->Program)->variants->driver_shader;
 202          break;
 203       }
 204
 205       unsigned type = pipe_shader_type_from_mesa(i);
 206
 207       if (sh &&
 208           !screen->is_parallel_shader_compilation_finished(screen, sh, type))
 209          return false;
 210    }
 211    return true;
 212 }
 213
 214 /**
 215  * Plug in the program and shader-related device driver functions.
 216  */
 217 void
 218 st_init_program_functions(struct dd_function_table *functions)
 219 {
 220    functions->NewProgram = st_new_program;
 221    functions->DeleteProgram = st_delete_program;
 222    functions->ProgramStringNotify = st_program_string_notify;
 223    functions->NewATIfs = st_new_ati_fs;
 224    functions->LinkShader = st_link_shader;
 225    functions->SetMaxShaderCompilerThreads = st_max_shader_compiler_threads;
 226    functions->GetShaderProgramCompletionStatus =
 227       st_get_shader_program_completion_status;
 228 }