src/mesa/drivers/dri/i965/brw_program.c

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
   4  develop this 3D driver.
   5
   6  Permission is hereby granted, free of charge, to any person obtaining
   7  a 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, sublicense, 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
  16  portions of the Software.
  17
  18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26  **********************************************************************/
  27  /*
  28   * Authors:
  29   *   Keith Whitwell <keith@tungstengraphics.com>
  30   */
  31
  32 #include "main/imports.h"
  33 #include "main/enums.h"
  34 #include "shader/prog_parameter.h"
  35 #include "shader/program.h"
  36 #include "shader/programopt.h"
  37 #include "tnl/tnl.h"
  38
  39 #include "brw_context.h"
  40 #include "brw_wm.h"
  41
  42 static void brwBindProgram( GLcontext *ctx,
  43                             GLenum target,
  44                             struct gl_program *prog )
  45 {
  46    struct brw_context *brw = brw_context(ctx);
  47
  48    switch (target) {
  49    case GL_VERTEX_PROGRAM_ARB:
  50       brw->state.dirty.brw |= BRW_NEW_VERTEX_PROGRAM;
  51       break;
  52    case GL_FRAGMENT_PROGRAM_ARB:
  53       brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
  54       break;
  55    }
  56 }
  57
  58 static struct gl_program *brwNewProgram( GLcontext *ctx,
  59                                       GLenum target,
  60                                       GLuint id )
  61 {
  62    struct brw_context *brw = brw_context(ctx);
  63
  64    switch (target) {
  65    case GL_VERTEX_PROGRAM_ARB: {
  66       struct brw_vertex_program *prog = CALLOC_STRUCT(brw_vertex_program);
  67       if (prog) {
  68          prog->id = brw->program_id++;
  69
  70          return _mesa_init_vertex_program( ctx, &prog->program,
  71                                              target, id );
  72       }
  73       else
  74          return NULL;
  75    }
  76
  77    case GL_FRAGMENT_PROGRAM_ARB: {
  78       struct brw_fragment_program *prog = CALLOC_STRUCT(brw_fragment_program);
  79       if (prog) {
  80          prog->id = brw->program_id++;
  81
  82          return _mesa_init_fragment_program( ctx, &prog->program,
  83                                              target, id );
  84       }
  85       else
  86          return NULL;
  87    }
  88
  89    default:
  90       return _mesa_new_program(ctx, target, id);
  91    }
  92 }
  93
  94 static void brwDeleteProgram( GLcontext *ctx,
  95                               struct gl_program *prog )
  96 {
  97    if (prog->Target == GL_FRAGMENT_PROGRAM_ARB) {
  98       struct gl_fragment_program *fp = (struct gl_fragment_program *) prog;
  99       struct brw_fragment_program *brw_fp = brw_fragment_program(fp);
 100
 101       dri_bo_unreference(brw_fp->const_buffer);
 102    }
 103
 104    if (prog->Target == GL_VERTEX_PROGRAM_ARB) {
 105       struct gl_vertex_program *vp = (struct gl_vertex_program *) prog;
 106       struct brw_vertex_program *brw_vp = brw_vertex_program(vp);
 107
 108       dri_bo_unreference(brw_vp->const_buffer);
 109    }
 110
 111    _mesa_delete_program( ctx, prog );
 112 }
 113
 114
 115 static GLboolean brwIsProgramNative( GLcontext *ctx,
 116                                      GLenum target,
 117                                      struct gl_program *prog )
 118 {
 119    return GL_TRUE;
 120 }
 121
 122
 123 static GLboolean brwProgramStringNotify( GLcontext *ctx,
 124                                          GLenum target,
 125                                          struct gl_program *prog )
 126 {
 127    struct brw_context *brw = brw_context(ctx);
 128
 129    if (target == GL_FRAGMENT_PROGRAM_ARB) {
 130       struct gl_fragment_program *fprog = (struct gl_fragment_program *) prog;
 131       struct brw_fragment_program *newFP = brw_fragment_program(fprog);
 132       const struct brw_fragment_program *curFP =
 133          brw_fragment_program_const(brw->fragment_program);
 134
 135       if (fprog->FogOption) {
 136          _mesa_append_fog_code(ctx, fprog);
 137          fprog->FogOption = GL_NONE;
 138       }
 139
 140       if (newFP == curFP)
 141          brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
 142       newFP->id = brw->program_id++;
 143       newFP->isGLSL = brw_wm_is_glsl(fprog);
 144    }
 145    else if (target == GL_VERTEX_PROGRAM_ARB) {
 146       struct gl_vertex_program *vprog = (struct gl_vertex_program *) prog;
 147       struct brw_vertex_program *newVP = brw_vertex_program(vprog);
 148       const struct brw_vertex_program *curVP =
 149          brw_vertex_program_const(brw->vertex_program);
 150
 151       if (newVP == curVP)
 152          brw->state.dirty.brw |= BRW_NEW_VERTEX_PROGRAM;
 153       if (newVP->program.IsPositionInvariant) {
 154          _mesa_insert_mvp_code(ctx, &newVP->program);
 155       }
 156       newVP->id = brw->program_id++;
 157
 158       /* Also tell tnl about it:
 159        */
 160       _tnl_program_string(ctx, target, prog);
 161    }
 162
 163    /* XXX check if program is legal, within limits */
 164    return GL_TRUE;
 165 }
 166
 167 void brwInitFragProgFuncs( struct dd_function_table *functions )
 168 {
 169    assert(functions->ProgramStringNotify == _tnl_program_string);
 170
 171    functions->BindProgram = brwBindProgram;
 172    functions->NewProgram = brwNewProgram;
 173    functions->DeleteProgram = brwDeleteProgram;
 174    functions->IsProgramNative = brwIsProgramNative;
 175    functions->ProgramStringNotify = brwProgramStringNotify;
 176 }
 177