2008-10-11 13:27:07 +01:00
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/* -*- mode: c; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 3; coding: utf-8-unix -*- */
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2004-10-25 22:09:16 +01:00
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/*
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Update to SGI FreeB 2.0.
Under the terms of version 1.1, "once Covered Code has been published
under a particular version of the License, Recipient may, for the
duration of the License, continue to use it under the terms of that
version, or choose to use such Covered Code under the terms of any
subsequent version published by SGI."
FreeB 2.0 license refers to "dates of first publication". They are here
taken to be 1991-2000, as noted in the original license text:
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
Official FreeB 2.0 text:
http://oss.sgi.com/projects/FreeB/SGIFreeSWLicB.2.0.pdf
As always, this code has not been tested for conformance with the OpenGL
specification. OpenGL conformance testing is available from
http://khronos.org/ and is required for use of the OpenGL logo in
product advertising and promotion.
2008-09-19 22:16:53 +01:00
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* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice including the dates of first publication and
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* either this permission notice or a reference to
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* http://oss.sgi.com/projects/FreeB/
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* shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of Silicon Graphics, Inc.
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* shall not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization from
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* Silicon Graphics, Inc.
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*/
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2004-10-25 22:09:16 +01:00
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#include "glxclient.h"
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2004-12-01 08:02:50 +00:00
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#include "indirect.h"
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2005-02-22 22:36:31 +00:00
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#include "indirect_vertex_array.h"
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2004-10-25 22:09:16 +01:00
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/*****************************************************************************/
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2004-12-01 08:15:01 +00:00
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/**
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* \name Vertex array pointer bridge functions
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*
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* When EXT_vertex_array was moved into the core GL spec, the \c count
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* parameter was lost. This libGL really only wants to implement the GL 1.1
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* version, but we need to support applications that were written to the old
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* interface. These bridge functions are part of the glue that makes this
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* happen.
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*/
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/*@{*/
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void __indirect_glColorPointerEXT(GLint size, GLenum type, GLsizei stride,
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GLsizei count, const GLvoid * pointer )
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{
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(void) count; __indirect_glColorPointer( size, type, stride, pointer );
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}
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void __indirect_glEdgeFlagPointerEXT(GLsizei stride,
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GLsizei count, const GLboolean * pointer )
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{
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(void) count; __indirect_glEdgeFlagPointer( stride, pointer );
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}
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void __indirect_glIndexPointerEXT(GLenum type, GLsizei stride,
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GLsizei count, const GLvoid * pointer )
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{
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(void) count; __indirect_glIndexPointer( type, stride, pointer );
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}
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void __indirect_glNormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,
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const GLvoid * pointer )
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{
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(void) count; __indirect_glNormalPointer( type, stride, pointer );
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}
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void __indirect_glTexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,
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GLsizei count, const GLvoid * pointer )
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{
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(void) count; __indirect_glTexCoordPointer( size, type, stride, pointer );
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}
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void __indirect_glVertexPointerEXT(GLint size, GLenum type, GLsizei stride,
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GLsizei count, const GLvoid * pointer )
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{
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(void) count; __indirect_glVertexPointer( size, type, stride, pointer );
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}
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/*@}*/
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/*****************************************************************************/
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2004-12-01 08:02:50 +00:00
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void __indirect_glInterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer)
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2004-10-25 22:09:16 +01:00
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{
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__GLXcontext *gc = __glXGetCurrentContext();
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__GLXattribute * state = (__GLXattribute *)(gc->client_state_private);
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2005-11-30 00:06:48 +00:00
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#define NONE {0, 0, 0}
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#define F(x) {GL_FLOAT, x, x * sizeof(GLfloat)}
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#define UB4 {GL_UNSIGNED_BYTE, 4, 4 * sizeof(GLubyte)}
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/* Each row in this array describes the elements of a particular
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* interleaved array mode. Each column describes, in the order in which
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* they appear in the interleaved arrays, one of the four possible types
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* of vertex data that can appear in an interleaved array.
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*/
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struct {
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/**
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* The enum describing the GL type, as would be passed to the
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* appropriate gl*Pointer function.
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*/
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GLushort type;
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/**
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* Number of elements in the subarray, as would be passed (as the
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* \c size parameter) to the appropriate gl*Pointer function.
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*/
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GLubyte count;
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/**
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* True size of a single element in the subarray, as would be passed
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* (as the \c stride parameter) to the appropriate gl*Pointer
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* function.
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*/
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GLubyte size;
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}
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static const modes[14][4] = {
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/* texture color normal vertex */
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{NONE, NONE, NONE, F(2)}, /* GL_V2F */
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{NONE, NONE, NONE, F(3)}, /* GL_V3F */
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{NONE, UB4, NONE, F(2)}, /* GL_C4UB_V2F */
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{NONE, UB4, NONE, F(3)}, /* GL_C4UB_V3F */
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{NONE, F(3), NONE, F(3)}, /* GL_C3F_V3F */
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{NONE, NONE, F(3), F(3)}, /* GL_N3F_V3F */
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{NONE, F(4), F(3), F(3)}, /* GL_C4F_N3F_V3F */
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{F(2), NONE, NONE, F(3)}, /* GL_T2F_V3F */
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{F(4), NONE, NONE, F(4)}, /* GL_T4F_V4F */
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{F(2), UB4, NONE, F(3)}, /* GL_T2F_C4UB_V3F */
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{F(2), F(3), NONE, F(3)}, /* GL_T2F_C3F_V3F */
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{F(2), NONE, F(3), F(3)}, /* GL_T2F_N3F_V3F */
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{F(2), F(4), F(3), F(3)}, /* GL_T2F_C4F_N3F_V3F */
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{F(4), F(4), F(3), F(4)}, /* GL_T4F_C4F_N3F_V4F */
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};
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#undef NONE
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#undef F
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#undef UB4
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2004-10-25 22:09:16 +01:00
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GLint trueStride, size;
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2005-11-30 00:06:48 +00:00
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int offsets[4];
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unsigned i;
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const int idx = format - GL_V2F;
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2004-10-25 22:09:16 +01:00
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2005-11-30 00:06:48 +00:00
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/* All valid formats are on the range [GL_V2F, GL_V2F+0x0D]. Since idx
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* is just the format biased by -GL_V2F, all valid idx values are on the
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* range [0, 0x0D].
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*/
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if ( (idx < 0) || (idx > 0x0D) ) {
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2004-10-25 22:09:16 +01:00
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__glXSetError(gc, GL_INVALID_ENUM);
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return;
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}
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2005-11-30 00:06:48 +00:00
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if ( stride < 0 ) {
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__glXSetError(gc, GL_INVALID_VALUE);
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return;
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}
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/* If the 'count' for a subarray is non-zero, then the offset of its
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* first element is at the currently accumulated 'size'.
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*/
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size = 0;
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for ( i = 0 ; i < 4 ; i++ ) {
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offsets[i] = (modes[idx][i].count != 0) ? size : -1;
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size += modes[idx][i].size;
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}
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2004-10-25 22:09:16 +01:00
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trueStride = (stride == 0) ? size : stride;
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2005-02-22 22:36:31 +00:00
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__glXArrayDisableAll( state );
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2005-11-30 00:06:48 +00:00
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if ( offsets[0] >= 0 ) {
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2004-12-01 08:02:50 +00:00
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__indirect_glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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2005-11-30 00:06:48 +00:00
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__indirect_glTexCoordPointer( modes[idx][0].count, GL_FLOAT,
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trueStride,
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(const char *) pointer );
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2004-10-25 22:09:16 +01:00
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}
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2005-11-30 00:06:48 +00:00
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if ( offsets[1] >= 0 ) {
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2004-12-01 08:02:50 +00:00
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__indirect_glEnableClientState(GL_COLOR_ARRAY);
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2005-11-30 00:06:48 +00:00
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__indirect_glColorPointer( modes[idx][1].count, modes[idx][1].type,
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trueStride,
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(const char *) pointer + offsets[1] );
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2004-10-25 22:09:16 +01:00
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}
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2005-11-30 00:06:48 +00:00
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if ( offsets[2] >= 0 ) {
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2004-12-01 08:02:50 +00:00
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__indirect_glEnableClientState(GL_NORMAL_ARRAY);
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2005-11-30 00:06:48 +00:00
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__indirect_glNormalPointer( GL_FLOAT, trueStride,
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(const char *)pointer + offsets[2] );
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2004-10-25 22:09:16 +01:00
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}
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2004-12-01 08:02:50 +00:00
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__indirect_glEnableClientState(GL_VERTEX_ARRAY);
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2005-11-30 00:06:48 +00:00
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__indirect_glVertexPointer( modes[idx][3].count, GL_FLOAT,
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trueStride,
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(const char *)pointer + offsets[3] );
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2004-10-25 22:09:16 +01:00
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}
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