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 "shader/prog_instruction.h"
  37 #include "shader/prog_parameter.h"
  38 #include "shader/program.h"
  39 #include "shader/shader_api.h"
  40
  41 #include "cso_cache/cso_context.h"
  42 #include "draw/draw_context.h"
  43
  44 #include "st_context.h"
  45 #include "st_program.h"
  46 #include "st_mesa_to_tgsi.h"
  47 #include "st_cb_program.h"
  48
  49
  50 static GLuint SerialNo = 1;
  51
  52
  53 /**
  54  * Called via ctx->Driver.BindProgram() to bind an ARB vertex or
  55  * fragment program.
  56  */
  57 static void st_bind_program( GLcontext *ctx,
  58                              GLenum target,
  59                              struct gl_program *prog )
  60 {
  61    struct st_context *st = st_context(ctx);
  62
  63    switch (target) {
  64    case GL_VERTEX_PROGRAM_ARB:
  65       st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
  66       break;
  67    case GL_FRAGMENT_PROGRAM_ARB:
  68       st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
  69       break;
  70    }
  71 }
  72
  73
  74 /**
  75  * Called via ctx->Driver.UseProgram() to bind a linked GLSL program
  76  * (vertex shader + fragment shader).
  77  */
  78 static void st_use_program( GLcontext *ctx,
  79                             GLuint program )
  80 {
  81    struct st_context *st = st_context(ctx);
  82
  83    st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
  84    st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
  85
  86    _mesa_use_program(ctx, program);
  87 }
  88
  89
  90
  91 /**
  92  * Called via ctx->Driver.NewProgram() to allocate a new vertex or
  93  * fragment program.
  94  */
  95 static struct gl_program *st_new_program( GLcontext *ctx,
  96                                           GLenum target,
  97                                           GLuint id )
  98 {
  99    switch (target) {
 100    case GL_VERTEX_PROGRAM_ARB: {
 101       struct st_vertex_program *prog = ST_CALLOC_STRUCT(st_vertex_program);
 102
 103       prog->serialNo = SerialNo++;
 104
 105       return _mesa_init_vertex_program( ctx,
 106                                         &prog->Base,
 107                                         target,
 108                                         id );
 109    }
 110
 111    case GL_FRAGMENT_PROGRAM_ARB:
 112    case GL_FRAGMENT_PROGRAM_NV: {
 113       struct st_fragment_program *prog = ST_CALLOC_STRUCT(st_fragment_program);
 114
 115       prog->serialNo = SerialNo++;
 116
 117       return _mesa_init_fragment_program( ctx,
 118                                           &prog->Base,
 119                                           target,
 120                                           id );
 121    }
 122
 123    default:
 124       assert(0);
 125       return NULL;
 126    }
 127 }
 128
 129
 130 void
 131 st_delete_program(GLcontext *ctx, struct gl_program *prog)
 132 {
 133    struct st_context *st = st_context(ctx);
 134
 135    switch( prog->Target ) {
 136    case GL_VERTEX_PROGRAM_ARB:
 137       {
 138          struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
 139          st_vp_release_varients( st, stvp );
 140       }
 141       break;
 142    case GL_FRAGMENT_PROGRAM_ARB:
 143       {
 144          struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
 145
 146          if (stfp->driver_shader) {
 147             cso_delete_fragment_shader(st->cso_context, stfp->driver_shader);
 148             stfp->driver_shader = NULL;
 149          }
 150
 151          if (stfp->tgsi.tokens) {
 152             st_free_tokens(stfp->tgsi.tokens);
 153             stfp->tgsi.tokens = NULL;
 154          }
 155
 156          if (stfp->bitmap_program) {
 157             struct gl_program *prg = &stfp->bitmap_program->Base.Base;
 158             _mesa_reference_program(ctx, &prg, NULL);
 159             stfp->bitmap_program = NULL;
 160          }
 161       }
 162       break;
 163    default:
 164       assert(0); /* problem */
 165    }
 166
 167    /* delete base class */
 168    _mesa_delete_program( ctx, prog );
 169 }
 170
 171
 172 static GLboolean st_is_program_native( GLcontext *ctx,
 173                                        GLenum target,
 174                                        struct gl_program *prog )
 175 {
 176    return GL_TRUE;
 177 }
 178
 179
 180 static GLboolean st_program_string_notify( GLcontext *ctx,
 181                                            GLenum target,
 182                                            struct gl_program *prog )
 183 {
 184    struct st_context *st = st_context(ctx);
 185
 186    if (target == GL_FRAGMENT_PROGRAM_ARB) {
 187       struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
 188
 189       stfp->serialNo++;
 190
 191       if (stfp->driver_shader) {
 192          cso_delete_fragment_shader(st->cso_context, stfp->driver_shader);
 193          stfp->driver_shader = NULL;
 194       }
 195
 196       if (stfp->tgsi.tokens) {
 197          st_free_tokens(stfp->tgsi.tokens);
 198          stfp->tgsi.tokens = NULL;
 199       }
 200
 201       if (st->fp == stfp)
 202          st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
 203    }
 204    else if (target == GL_VERTEX_PROGRAM_ARB) {
 205       struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
 206
 207       stvp->serialNo++;
 208
 209       st_vp_release_varients( st, stvp );
 210
 211       if (st->vp == stvp)
 212          st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
 213    }
 214
 215    /* XXX check if program is legal, within limits */
 216    return GL_TRUE;
 217 }
 218
 219
 220
 221 void st_init_program_functions(struct dd_function_table *functions)
 222 {
 223    functions->BindProgram = st_bind_program;
 224    functions->UseProgram = st_use_program;
 225    functions->NewProgram = st_new_program;
 226    functions->DeleteProgram = st_delete_program;
 227    functions->IsProgramNative = st_is_program_native;
 228    functions->ProgramStringNotify = st_program_string_notify;
 229 }