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Viewing changes to src/mesa/shader/arbprogram.c

  • Committer: Bazaar Package Importer
  • Author(s): Sebastien Bacher
  • Date: 2007-02-21 12:44:07 UTC
  • mfrom: (1.2.1 upstream)
  • mto: This revision was merged to the branch mainline in revision 22.
  • Revision ID: james.westby@ubuntu.com-20070221124407-rgcacs32mycrtadl
Import upstream version 6.5.2

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src/mesa/shader/arbprogram.c
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/*
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 * Mesa 3-D graphics library
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 * Version:  6.5
 
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 * Version:  6.5.2
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 *
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 * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
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 *
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#include "imports.h"
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#include "macros.h"
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#include "mtypes.h"
 
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#include "program.h"
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void GLAPIENTRY
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   GET_CURRENT_CONTEXT(ctx);
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   ASSERT_OUTSIDE_BEGIN_END(ctx);
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   if (index == 0 || index >= MAX_VERTEX_PROGRAM_ATTRIBS) {
 
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   if (index >= MAX_VERTEX_PROGRAM_ATTRIBS) {
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      _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribfvARB(index)");
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      return;
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   }
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         params[0] = ctx->Array.ArrayObj->VertexAttrib[index].Normalized;
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         break;
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      case GL_CURRENT_VERTEX_ATTRIB_ARB:
 
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         if (index == 0) {
 
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            _mesa_error(ctx, GL_INVALID_OPERATION,
 
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                        "glGetVertexAttribfvARB(index==0)");
 
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            return;
 
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         }
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         FLUSH_CURRENT(ctx, 0);
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         COPY_4V(params, ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index]);
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         break;
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}
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/**
 
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 * Determine if id names a vertex or fragment program.
 
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 * \note Not compiled into display lists.
 
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 * \note Called from both glIsProgramNV and glIsProgramARB.
 
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 * \param id is the program identifier
 
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 * \return GL_TRUE if id is a program, else GL_FALSE.
 
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 */
 
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GLboolean GLAPIENTRY
 
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_mesa_IsProgramARB(GLuint id)
 
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{
 
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   struct gl_program *prog = NULL; 
 
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   GET_CURRENT_CONTEXT(ctx);
 
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   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
 
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   if (id == 0)
 
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      return GL_FALSE;
 
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   prog = _mesa_lookup_program(ctx, id);
 
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   if (prog && (prog != &_mesa_DummyProgram))
 
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      return GL_TRUE;
 
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   else
 
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      return GL_FALSE;
 
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}
 
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void GLAPIENTRY
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_mesa_ProgramStringARB(GLenum target, GLenum format, GLsizei len,
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                       const GLvoid *string)
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_mesa_GetProgramStringARB(GLenum target, GLenum pname, GLvoid *string)
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{
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   const struct gl_program *prog;
 
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   char *dst = (char *) string;
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   GET_CURRENT_CONTEXT(ctx);
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   if (!ctx->_CurrentProgram)
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      return;
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   }
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   _mesa_memcpy(string, prog->String, _mesa_strlen((char *) prog->String));
 
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   if (prog->String)
 
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      _mesa_memcpy(dst, prog->String, _mesa_strlen((char *) prog->String));
 
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   else
 
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      *dst = '\0';
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}