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/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, Inc. 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 including the dates of first publication and
* either this permission notice or a reference to
* http://oss.sgi.com/projects/FreeB/
* 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
* SILICON GRAPHICS, INC. 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.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <GL/gl.h>
#include "glxserver.h"
#include "singlesize.h"
#include "indirect_size_get.h"
#include "glapitable.h"
#include "glapi.h"
#include "glthread.h"
#include "dispatch.h"
/*
** These routines compute the size of variable-size returned parameters.
** Unlike the similar routines that do the same thing for variable-size
** incoming parameters, the samplegl library itself doesn't use these routines.
** Hence, they are located here, in the GLX extension library.
*/
GLint
__glReadPixels_size(GLenum format, GLenum type, GLint w, GLint h)
{
return __glXImageSize(format, type, 0, w, h, 1, 0, 0, 0, 0, 4);
}
GLint
__glGetMap_size(GLenum target, GLenum query)
{
GLint k, order = 0, majorMinor[2];
/*
** Assume target and query are both valid.
*/
switch (target) {
case GL_MAP1_COLOR_4:
case GL_MAP1_NORMAL:
case GL_MAP1_INDEX:
case GL_MAP1_TEXTURE_COORD_1:
case GL_MAP1_TEXTURE_COORD_2:
case GL_MAP1_TEXTURE_COORD_3:
case GL_MAP1_TEXTURE_COORD_4:
case GL_MAP1_VERTEX_3:
case GL_MAP1_VERTEX_4:
switch (query) {
case GL_COEFF:
k = __glMap1d_size(target);
CALL_GetMapiv(GET_DISPATCH(), (target, GL_ORDER, &order));
/*
** The query above might fail, but then order will be zero anyway.
*/
return order * k;
case GL_DOMAIN:
return 2;
case GL_ORDER:
return 1;
}
break;
case GL_MAP2_COLOR_4:
case GL_MAP2_NORMAL:
case GL_MAP2_INDEX:
case GL_MAP2_TEXTURE_COORD_1:
case GL_MAP2_TEXTURE_COORD_2:
case GL_MAP2_TEXTURE_COORD_3:
case GL_MAP2_TEXTURE_COORD_4:
case GL_MAP2_VERTEX_3:
case GL_MAP2_VERTEX_4:
switch (query) {
case GL_COEFF:
k = __glMap2d_size(target);
majorMinor[0] = majorMinor[1] = 0;
CALL_GetMapiv(GET_DISPATCH(), (target, GL_ORDER, majorMinor));
/*
** The query above might fail, but then majorMinor will be zeroes
*/
return majorMinor[0] * majorMinor[1] * k;
case GL_DOMAIN:
return 4;
case GL_ORDER:
return 2;
}
break;
}
return -1;
}
GLint
__glGetMapdv_size(GLenum target, GLenum query)
{
return __glGetMap_size(target, query);
}
GLint
__glGetMapfv_size(GLenum target, GLenum query)
{
return __glGetMap_size(target, query);
}
GLint
__glGetMapiv_size(GLenum target, GLenum query)
{
return __glGetMap_size(target, query);
}
GLint
__glGetPixelMap_size(GLenum map)
{
GLint size;
GLenum query;
switch (map) {
case GL_PIXEL_MAP_I_TO_I:
query = GL_PIXEL_MAP_I_TO_I_SIZE;
break;
case GL_PIXEL_MAP_S_TO_S:
query = GL_PIXEL_MAP_S_TO_S_SIZE;
break;
case GL_PIXEL_MAP_I_TO_R:
query = GL_PIXEL_MAP_I_TO_R_SIZE;
break;
case GL_PIXEL_MAP_I_TO_G:
query = GL_PIXEL_MAP_I_TO_G_SIZE;
break;
case GL_PIXEL_MAP_I_TO_B:
query = GL_PIXEL_MAP_I_TO_B_SIZE;
break;
case GL_PIXEL_MAP_I_TO_A:
query = GL_PIXEL_MAP_I_TO_A_SIZE;
break;
case GL_PIXEL_MAP_R_TO_R:
query = GL_PIXEL_MAP_R_TO_R_SIZE;
break;
case GL_PIXEL_MAP_G_TO_G:
query = GL_PIXEL_MAP_G_TO_G_SIZE;
break;
case GL_PIXEL_MAP_B_TO_B:
query = GL_PIXEL_MAP_B_TO_B_SIZE;
break;
case GL_PIXEL_MAP_A_TO_A:
query = GL_PIXEL_MAP_A_TO_A_SIZE;
break;
default:
return -1;
}
CALL_GetIntegerv(GET_DISPATCH(), (query, &size));
return size;
}
GLint
__glGetPixelMapfv_size(GLenum map)
{
return __glGetPixelMap_size(map);
}
GLint
__glGetPixelMapuiv_size(GLenum map)
{
return __glGetPixelMap_size(map);
}
GLint
__glGetPixelMapusv_size(GLenum map)
{
return __glGetPixelMap_size(map);
}
GLint
__glGetTexImage_size(GLenum target, GLint level, GLenum format,
GLenum type, GLint width, GLint height, GLint depth)
{
return __glXImageSize(format, type, target, width, height, depth,
0, 0, 0, 0, 4);
}
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