3bbfe7b179
Tested by at least ajacoutot@, dcoppa@ & jasper@
200 lines
5.5 KiB
C
200 lines
5.5 KiB
C
/*
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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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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <GL/gl.h>
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#include "glxserver.h"
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#include "singlesize.h"
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#include "indirect_size_get.h"
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/*
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** These routines compute the size of variable-size returned parameters.
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** Unlike the similar routines that do the same thing for variable-size
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** incoming parameters, the samplegl library itself doesn't use these routines.
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** Hence, they are located here, in the GLX extension library.
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*/
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GLint
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__glReadPixels_size(GLenum format, GLenum type, GLint w, GLint h)
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{
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return __glXImageSize(format, type, 0, w, h, 1, 0, 0, 0, 0, 4);
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}
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GLint
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__glGetMap_size(GLenum target, GLenum query)
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{
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GLint k, order = 0, majorMinor[2];
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/*
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** Assume target and query are both valid.
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*/
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switch (target) {
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case GL_MAP1_COLOR_4:
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case GL_MAP1_NORMAL:
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case GL_MAP1_INDEX:
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case GL_MAP1_TEXTURE_COORD_1:
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case GL_MAP1_TEXTURE_COORD_2:
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case GL_MAP1_TEXTURE_COORD_3:
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case GL_MAP1_TEXTURE_COORD_4:
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case GL_MAP1_VERTEX_3:
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case GL_MAP1_VERTEX_4:
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switch (query) {
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case GL_COEFF:
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k = __glMap1d_size(target);
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glGetMapiv(target, GL_ORDER, &order);
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/*
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** The query above might fail, but then order will be zero anyway.
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*/
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return order * k;
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case GL_DOMAIN:
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return 2;
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case GL_ORDER:
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return 1;
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}
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break;
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case GL_MAP2_COLOR_4:
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case GL_MAP2_NORMAL:
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case GL_MAP2_INDEX:
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case GL_MAP2_TEXTURE_COORD_1:
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case GL_MAP2_TEXTURE_COORD_2:
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case GL_MAP2_TEXTURE_COORD_3:
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case GL_MAP2_TEXTURE_COORD_4:
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case GL_MAP2_VERTEX_3:
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case GL_MAP2_VERTEX_4:
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switch (query) {
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case GL_COEFF:
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k = __glMap2d_size(target);
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majorMinor[0] = majorMinor[1] = 0;
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glGetMapiv(target, GL_ORDER, majorMinor);
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/*
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** The query above might fail, but then majorMinor will be zeroes
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*/
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return majorMinor[0] * majorMinor[1] * k;
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case GL_DOMAIN:
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return 4;
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case GL_ORDER:
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return 2;
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}
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break;
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}
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return -1;
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}
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GLint
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__glGetMapdv_size(GLenum target, GLenum query)
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{
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return __glGetMap_size(target, query);
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}
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GLint
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__glGetMapfv_size(GLenum target, GLenum query)
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{
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return __glGetMap_size(target, query);
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}
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GLint
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__glGetMapiv_size(GLenum target, GLenum query)
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{
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return __glGetMap_size(target, query);
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}
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GLint
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__glGetPixelMap_size(GLenum map)
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{
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GLint size;
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GLenum query;
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switch (map) {
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case GL_PIXEL_MAP_I_TO_I:
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query = GL_PIXEL_MAP_I_TO_I_SIZE;
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break;
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case GL_PIXEL_MAP_S_TO_S:
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query = GL_PIXEL_MAP_S_TO_S_SIZE;
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break;
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case GL_PIXEL_MAP_I_TO_R:
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query = GL_PIXEL_MAP_I_TO_R_SIZE;
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break;
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case GL_PIXEL_MAP_I_TO_G:
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query = GL_PIXEL_MAP_I_TO_G_SIZE;
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break;
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case GL_PIXEL_MAP_I_TO_B:
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query = GL_PIXEL_MAP_I_TO_B_SIZE;
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break;
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case GL_PIXEL_MAP_I_TO_A:
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query = GL_PIXEL_MAP_I_TO_A_SIZE;
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break;
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case GL_PIXEL_MAP_R_TO_R:
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query = GL_PIXEL_MAP_R_TO_R_SIZE;
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break;
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case GL_PIXEL_MAP_G_TO_G:
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query = GL_PIXEL_MAP_G_TO_G_SIZE;
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break;
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case GL_PIXEL_MAP_B_TO_B:
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query = GL_PIXEL_MAP_B_TO_B_SIZE;
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break;
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case GL_PIXEL_MAP_A_TO_A:
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query = GL_PIXEL_MAP_A_TO_A_SIZE;
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break;
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default:
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return -1;
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}
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glGetIntegerv(query, &size);
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return size;
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}
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GLint
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__glGetPixelMapfv_size(GLenum map)
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{
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return __glGetPixelMap_size(map);
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}
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GLint
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__glGetPixelMapuiv_size(GLenum map)
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{
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return __glGetPixelMap_size(map);
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}
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GLint
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__glGetPixelMapusv_size(GLenum map)
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{
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return __glGetPixelMap_size(map);
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}
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GLint
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__glGetTexImage_size(GLenum target, GLint level, GLenum format,
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GLenum type, GLint width, GLint height, GLint depth)
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{
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return __glXImageSize(format, type, target, width, height, depth,
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0, 0, 0, 0, 4);
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}
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