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_util.h"
  41 #include "brw_wm.h"
  42
  43 static void brwBindProgram( GLcontext *ctx,
  44                             GLenum target,
  45                             struct gl_program *prog )
  46 {
  47    struct brw_context *brw = brw_context(ctx);
  48
  49    switch (target) {
  50    case GL_VERTEX_PROGRAM_ARB:
  51       brw->state.dirty.brw |= BRW_NEW_VERTEX_PROGRAM;
  52       break;
  53    case GL_FRAGMENT_PROGRAM_ARB:
  54       brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
  55       break;
  56    }
  57 }
  58
  59 static struct gl_program *brwNewProgram( GLcontext *ctx,
  60                                       GLenum target,
  61                                       GLuint id )
  62 {
  63    struct brw_context *brw = brw_context(ctx);
  64
  65    switch (target) {
  66    case GL_VERTEX_PROGRAM_ARB: {
  67       struct brw_vertex_program *prog = CALLOC_STRUCT(brw_vertex_program);
  68       if (prog) {
  69          prog->id = brw->program_id++;
  70
  71          return _mesa_init_vertex_program( ctx, &prog->program,
  72                                              target, id );
  73       }
  74       else
  75          return NULL;
  76    }
  77
  78    case GL_FRAGMENT_PROGRAM_ARB: {
  79       struct brw_fragment_program *prog = CALLOC_STRUCT(brw_fragment_program);
  80       if (prog) {
  81          prog->id = brw->program_id++;
  82
  83          return _mesa_init_fragment_program( ctx, &prog->program,
  84                                              target, id );
  85       }
  86       else
  87          return NULL;
  88    }
  89
  90    default:
  91       return _mesa_new_program(ctx, target, id);
  92    }
  93 }
  94
  95 static void brwDeleteProgram( GLcontext *ctx,
  96                               struct gl_program *prog )
  97 {
  98    _mesa_delete_program( ctx, prog );
  99 }
 100
 101
 102 static GLboolean brwIsProgramNative( GLcontext *ctx,
 103                                      GLenum target,
 104                                      struct gl_program *prog )
 105 {
 106    return GL_TRUE;
 107 }
 108
 109 static void brwProgramStringNotify( GLcontext *ctx,
 110                                     GLenum target,
 111                                     struct gl_program *prog )
 112 {
 113    struct brw_context *brw = brw_context(ctx);
 114    if (target == GL_FRAGMENT_PROGRAM_ARB) {
 115       struct gl_fragment_program *fprog = (struct gl_fragment_program *) prog;
 116       struct brw_fragment_program *newFP = brw_fragment_program(fprog);
 117       const struct brw_fragment_program *curFP =
 118          brw_fragment_program_const(brw->fragment_program);
 119
 120       if (fprog->FogOption) {
 121          _mesa_append_fog_code(ctx, fprog);
 122          fprog->FogOption = GL_NONE;
 123       }
 124
 125       if (newFP == curFP)
 126          brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
 127       newFP->id = brw->program_id++;
 128       newFP->isGLSL = brw_wm_is_glsl(fprog);
 129    }
 130    else if (target == GL_VERTEX_PROGRAM_ARB) {
 131       struct gl_vertex_program *vprog = (struct gl_vertex_program *) prog;
 132       struct brw_vertex_program *newVP = brw_vertex_program(vprog);
 133       const struct brw_vertex_program *curVP =
 134          brw_vertex_program_const(brw->vertex_program);
 135
 136       if (newVP == curVP)
 137          brw->state.dirty.brw |= BRW_NEW_VERTEX_PROGRAM;
 138       if (newVP->program.IsPositionInvariant) {
 139          _mesa_insert_mvp_code(ctx, &newVP->program);
 140       }
 141       newVP->id = brw->program_id++;
 142
 143       /* Also tell tnl about it:
 144        */
 145       _tnl_program_string(ctx, target, prog);
 146    }
 147 }
 148
 149 void brwInitFragProgFuncs( struct dd_function_table *functions )
 150 {
 151    assert(functions->ProgramStringNotify == _tnl_program_string);
 152
 153    functions->BindProgram = brwBindProgram;
 154    functions->NewProgram = brwNewProgram;
 155    functions->DeleteProgram = brwDeleteProgram;
 156    functions->IsProgramNative = brwIsProgramNative;
 157    functions->ProgramStringNotify = brwProgramStringNotify;
 158 }
 159