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/*
* Mesa 3-D graphics library
* Version: 6.5
*
* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#define DEBUG_VP 0
/**
* \file arbvertparse.c
* ARB_vertex_program parser.
* \author Karl Rasche
*/
#include "glheader.h"
#include "imports.h"
#include "program.h"
#include "arbprogparse.h"
#include "arbvertparse.h"
/**
* Parse the vertex program string. If success, update the given
* vertex_program object with the new program. Else, leave the vertex_program
* object unchanged.
*/
void
_mesa_parse_arb_vertex_program(GLcontext * ctx, GLenum target,
const GLubyte * str, GLsizei len,
struct vertex_program *program)
{
struct arb_program ap;
(void) target;
struct prog_instruction *newInstructions;
/* set the program target before parsing */
ap.Base.Target = GL_VERTEX_PROGRAM_ARB;
if (!_mesa_parse_arb_program(ctx, str, len, &ap)) {
/* Error in the program. Just return. */
return;
}
/* Copy the relevant contents of the arb_program struct into the
* vertex_program struct.
*/
/* copy instruction buffer */
newInstructions = (struct prog_instruction *)
_mesa_malloc(ap.Base.NumInstructions * sizeof(struct prog_instruction));
if (!newInstructions) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glProgramStringARB");
return;
}
_mesa_memcpy(newInstructions, ap.VPInstructions,
ap.Base.NumInstructions * sizeof(struct prog_instruction));
if (program->Instructions)
_mesa_free(program->Instructions);
program->Instructions = newInstructions;
program->Base.String = ap.Base.String;
program->Base.NumInstructions = ap.Base.NumInstructions;
program->Base.NumTemporaries = ap.Base.NumTemporaries;
program->Base.NumParameters = ap.Base.NumParameters;
program->Base.NumAttributes = ap.Base.NumAttributes;
program->Base.NumAddressRegs = ap.Base.NumAddressRegs;
program->IsPositionInvariant = ap.HintPositionInvariant;
program->InputsRead = ap.InputsRead;
program->OutputsWritten = ap.OutputsWritten;
if (program->Parameters) {
/* free previous program's parameters */
_mesa_free_parameter_list(program->Parameters);
}
program->Parameters = ap.Parameters;
#if DEBUG_VP
_mesa_print_program(ap.Base.NumInstructions, ap.VPInstructions);
#endif
}
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