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