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/* $Id: api_validate.c,v 1.4 2001/03/03 20:33:27 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
*
* Copyright (C) 1999-2000 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.
*/
#include "glheader.h"
#include "api_validate.h"
#include "context.h"
#include "mtypes.h"
#include "state.h"
GLboolean
_mesa_validate_DrawElements(GLcontext *ctx,
GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices)
{
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
if (count <= 0) {
if (count < 0)
_mesa_error(ctx, GL_INVALID_VALUE, "glDrawElements(count)" );
return GL_FALSE;
}
if (mode < 0 ||
mode > GL_POLYGON) {
_mesa_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)" );
return GL_FALSE;
}
if (type != GL_UNSIGNED_INT &&
type != GL_UNSIGNED_BYTE &&
type != GL_UNSIGNED_SHORT)
{
_mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)" );
return GL_FALSE;
}
if (ctx->NewState)
_mesa_update_state( ctx );
if (!ctx->Array.Vertex.Enabled)
return GL_FALSE;
return GL_TRUE;
}
GLboolean
_mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode,
GLuint start, GLuint end,
GLsizei count, GLenum type,
const GLvoid *indices)
{
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
if (count <= 0) {
if (count < 0)
_mesa_error(ctx, GL_INVALID_VALUE, "glDrawElements(count)" );
return GL_FALSE;
}
if (mode < 0 || mode > GL_POLYGON) {
_mesa_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)" );
return GL_FALSE;
}
if (end < start) {
_mesa_error(ctx, GL_INVALID_VALUE, "glDrawRangeElements(end<start)");
return GL_FALSE;
}
if (type != GL_UNSIGNED_INT &&
type != GL_UNSIGNED_BYTE &&
type != GL_UNSIGNED_SHORT)
{
_mesa_error(ctx, GL_INVALID_ENUM, "glDrawElements(type)" );
return GL_FALSE;
}
if (ctx->NewState)
_mesa_update_state( ctx );
if (!ctx->Array.Vertex.Enabled)
return GL_FALSE;
return GL_TRUE;
}
GLboolean
_mesa_validate_DrawArrays(GLcontext *ctx,
GLenum mode, GLint start, GLsizei count)
{
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
if (count<0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glDrawArrays(count)" );
return GL_FALSE;
}
if (mode < 0 || mode > GL_POLYGON) {
_mesa_error(ctx, GL_INVALID_ENUM, "glDrawArrays(mode)" );
return GL_FALSE;
}
if (ctx->NewState)
_mesa_update_state( ctx );
if (!ctx->Array.Vertex.Enabled)
return GL_FALSE;
return GL_TRUE;
}
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