src/mesa/state_tracker/st_cb_program.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   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 TUNGSTEN GRAPHICS 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 <keith@tungstengraphics.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_program.h"
  45 #include "st_mesa_to_tgsi.h"
  46 #include "st_cb_program.h"
  47
  48
  49
  50 /**
  51  * Called via ctx->Driver.BindProgram() to bind an ARB vertex or
  52  * fragment program.
  53  */
  54 static void
  55 st_bind_program(struct gl_context *ctx, GLenum target, struct gl_program *prog)
  56 {
  57    struct st_context *st = st_context(ctx);
  58
  59    switch (target) {
  60    case GL_VERTEX_PROGRAM_ARB:
  61       st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
  62       break;
  63    case GL_FRAGMENT_PROGRAM_ARB:
  64       st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
  65       break;
  66    case MESA_GEOMETRY_PROGRAM:
  67       st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
  68       break;
  69    }
  70 }
  71
  72
  73 /**
  74  * Called via ctx->Driver.UseProgram() to bind a linked GLSL program
  75  * (vertex shader + fragment shader).
  76  */
  77 static void
  78 st_use_program(struct gl_context *ctx, struct gl_shader_program *shProg)
  79 {
  80    struct st_context *st = st_context(ctx);
  81
  82    st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
  83    st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
  84    st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
  85 }
  86
  87
  88 /**
  89  * Called via ctx->Driver.NewProgram() to allocate a new vertex or
  90  * fragment program.
  91  */
  92 static struct gl_program *
  93 st_new_program(struct gl_context *ctx, GLenum target, GLuint id)
  94 {
  95    switch (target) {
  96    case GL_VERTEX_PROGRAM_ARB: {
  97       struct st_vertex_program *prog = ST_CALLOC_STRUCT(st_vertex_program);
  98       return _mesa_init_vertex_program(ctx, &prog->Base, target, id);
  99    }
 100
 101    case GL_FRAGMENT_PROGRAM_ARB:
 102    case GL_FRAGMENT_PROGRAM_NV: {
 103       struct st_fragment_program *prog = ST_CALLOC_STRUCT(st_fragment_program);
 104       return _mesa_init_fragment_program(ctx, &prog->Base, target, id);
 105    }
 106
 107    case MESA_GEOMETRY_PROGRAM: {
 108       struct st_geometry_program *prog = ST_CALLOC_STRUCT(st_geometry_program);
 109       return _mesa_init_geometry_program(ctx, &prog->Base, target, id);
 110    }
 111
 112    default:
 113       assert(0);
 114       return NULL;
 115    }
 116 }
 117
 118
 119 /**
 120  * Called via ctx->Driver.DeleteProgram()
 121  */
 122 static void
 123 st_delete_program(struct gl_context *ctx, struct gl_program *prog)
 124 {
 125    struct st_context *st = st_context(ctx);
 126
 127    switch( prog->Target ) {
 128    case GL_VERTEX_PROGRAM_ARB:
 129       {
 130          struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
 131          st_vp_release_varients( st, stvp );
 132       }
 133       break;
 134    case MESA_GEOMETRY_PROGRAM:
 135       {
 136          struct st_geometry_program *stgp =
 137             (struct st_geometry_program *) prog;
 138
 139          st_gp_release_varients(st, stgp);
 140
 141          if (stgp->tgsi.tokens) {
 142             st_free_tokens((void *) stgp->tgsi.tokens);
 143             stgp->tgsi.tokens = NULL;
 144          }
 145       }
 146       break;
 147    case GL_FRAGMENT_PROGRAM_ARB:
 148       {
 149          struct st_fragment_program *stfp =
 150             (struct st_fragment_program *) prog;
 151
 152          st_fp_release_varients(st, stfp);
 153
 154          if (stfp->tgsi.tokens) {
 155             st_free_tokens(stfp->tgsi.tokens);
 156             stfp->tgsi.tokens = NULL;
 157          }
 158       }
 159       break;
 160    default:
 161       assert(0); /* problem */
 162    }
 163
 164    /* delete base class */
 165    _mesa_delete_program( ctx, prog );
 166 }
 167
 168
 169 /**
 170  * Called via ctx->Driver.IsProgramNative()
 171  */
 172 static GLboolean
 173 st_is_program_native(struct gl_context *ctx,
 174                      GLenum target,
 175                      struct gl_program *prog)
 176 {
 177    return GL_TRUE;
 178 }
 179
 180
 181 /**
 182  * Called via ctx->Driver.ProgramStringNotify()
 183  * Called when the program's text/code is changed.  We have to free
 184  * all shader varients and corresponding gallium shaders when this happens.
 185  */
 186 static GLboolean
 187 st_program_string_notify( struct gl_context *ctx,
 188                                            GLenum target,
 189                                            struct gl_program *prog )
 190 {
 191    struct st_context *st = st_context(ctx);
 192
 193    if (target == GL_FRAGMENT_PROGRAM_ARB) {
 194       struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
 195
 196       st_fp_release_varients(st, stfp);
 197
 198       if (stfp->tgsi.tokens) {
 199          st_free_tokens(stfp->tgsi.tokens);
 200          stfp->tgsi.tokens = NULL;
 201       }
 202
 203       if (st->fp == stfp)
 204          st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
 205    }
 206    else if (target == MESA_GEOMETRY_PROGRAM) {
 207       struct st_geometry_program *stgp = (struct st_geometry_program *) prog;
 208
 209       st_gp_release_varients(st, stgp);
 210
 211       if (stgp->tgsi.tokens) {
 212          st_free_tokens((void *) stgp->tgsi.tokens);
 213          stgp->tgsi.tokens = NULL;
 214       }
 215
 216       if (st->gp == stgp)
 217          st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
 218    }
 219    else if (target == GL_VERTEX_PROGRAM_ARB) {
 220       struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
 221
 222       st_vp_release_varients( st, stvp );
 223
 224       if (st->vp == stvp)
 225          st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
 226    }
 227
 228    /* XXX check if program is legal, within limits */
 229    return GL_TRUE;
 230 }
 231
 232
 233 /**
 234  * Plug in the program and shader-related device driver functions.
 235  */
 236 void
 237 st_init_program_functions(struct dd_function_table *functions)
 238 {
 239    functions->BindProgram = st_bind_program;
 240    functions->UseProgram = st_use_program;
 241    functions->NewProgram = st_new_program;
 242    functions->DeleteProgram = st_delete_program;
 243    functions->IsProgramNative = st_is_program_native;
 244    functions->ProgramStringNotify = st_program_string_notify;
 245 }