1 /* 2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) 3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice including the dates of first publication and 13 * either this permission notice or a reference to 14 * http://oss.sgi.com/projects/FreeB/ 15 * shall be included in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 * SOFTWARE. 24 * 25 * Except as contained in this notice, the name of Silicon Graphics, Inc. 26 * shall not be used in advertising or otherwise to promote the sale, use or 27 * other dealings in this Software without prior written authorization from 28 * Silicon Graphics, Inc. 29 */ 30 31 #include "packsingle.h" 32 #include "indirect.h" 33 #include "glapi.h" 34 #include <GL/glxproto.h> 35 36 void 37 __indirect_glGetSeparableFilter(GLenum target, GLenum format, GLenum type, 38 GLvoid * row, GLvoid * column, GLvoid * span) 39 { 40 __GLX_SINGLE_DECLARE_VARIABLES(); 41 const __GLXattribute *state; 42 xGLXGetSeparableFilterReply reply; 43 GLubyte *rowBuf, *colBuf; 44 45 if (!dpy) 46 return; 47 __GLX_SINGLE_LOAD_VARIABLES(); 48 state = gc->client_state_private; 49 50 /* Send request */ 51 __GLX_SINGLE_BEGIN(X_GLsop_GetSeparableFilter, __GLX_PAD(13)); 52 __GLX_SINGLE_PUT_LONG(0, target); 53 __GLX_SINGLE_PUT_LONG(4, format); 54 __GLX_SINGLE_PUT_LONG(8, type); 55 __GLX_SINGLE_PUT_CHAR(12, state->storePack.swapEndian); 56 __GLX_SINGLE_READ_XREPLY(); 57 compsize = reply.length << 2; 58 59 if (compsize != 0) { 60 GLint width, height; 61 GLint widthsize, heightsize; 62 63 width = reply.width; 64 height = reply.height; 65 66 widthsize = __glImageSize(width, 1, 1, format, type, 0); 67 heightsize = __glImageSize(height, 1, 1, format, type, 0); 68 69 /* Allocate a holding buffer to transform the data from */ 70 rowBuf = malloc(widthsize); 71 if (!rowBuf) { 72 /* Throw data away */ 73 _XEatData(dpy, compsize); 74 __glXSetError(gc, GL_OUT_OF_MEMORY); 75 UnlockDisplay(dpy); 76 SyncHandle(); 77 return; 78 } 79 else { 80 __GLX_SINGLE_GET_CHAR_ARRAY(((char *) rowBuf), widthsize); 81 __glEmptyImage(gc, 1, width, 1, 1, format, type, rowBuf, row); 82 free((char *) rowBuf); 83 } 84 colBuf = malloc(heightsize); 85 if (!colBuf) { 86 /* Throw data away */ 87 _XEatData(dpy, compsize - __GLX_PAD(widthsize)); 88 __glXSetError(gc, GL_OUT_OF_MEMORY); 89 UnlockDisplay(dpy); 90 SyncHandle(); 91 return; 92 } 93 else { 94 __GLX_SINGLE_GET_CHAR_ARRAY(((char *) colBuf), heightsize); 95 __glEmptyImage(gc, 1, height, 1, 1, format, type, colBuf, column); 96 free((char *) colBuf); 97 } 98 } 99 else { 100 /* 101 ** don't modify user's buffer. 102 */ 103 } 104 __GLX_SINGLE_END(); 105 106 } 107 108 109 /* it is defined to gl_dispatch_stub_NNN in indirect.h */ 110 void gl_dispatch_stub_GetSeparableFilterEXT (GLenum target, GLenum format, 111 GLenum type, GLvoid * row, 112 GLvoid * column, GLvoid * span) 113 { 114 struct glx_context *const gc = __glXGetCurrentContext(); 115 116 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) 117 if (gc->isDirect) { 118 const _glapi_proc *const table = (_glapi_proc *) GET_DISPATCH(); 119 PFNGLGETSEPARABLEFILTEREXTPROC p = 120 (PFNGLGETSEPARABLEFILTEREXTPROC) table[359]; 121 122 p(target, format, type, row, column, span); 123 return; 124 } 125 else 126 #endif 127 { 128 Display *const dpy = gc->currentDpy; 129 const GLuint cmdlen = __GLX_PAD(13); 130 131 if (dpy != NULL) { 132 const __GLXattribute *const state = gc->client_state_private; 133 xGLXGetSeparableFilterReply reply; 134 GLubyte const *pc = 135 __glXSetupVendorRequest(gc, X_GLXVendorPrivateWithReply, 136 X_GLvop_GetSeparableFilterEXT, cmdlen); 137 unsigned compsize; 138 139 140 (void) memcpy((void *) (pc + 0), (void *) (&target), 4); 141 (void) memcpy((void *) (pc + 4), (void *) (&format), 4); 142 (void) memcpy((void *) (pc + 8), (void *) (&type), 4); 143 *(int8_t *) (pc + 12) = state->storePack.swapEndian; 144 145 (void) _XReply(dpy, (xReply *) & reply, 0, False); 146 147 compsize = reply.length << 2; 148 149 if (compsize != 0) { 150 const GLint width = reply.width; 151 const GLint height = reply.height; 152 const GLint widthsize = 153 __glImageSize(width, 1, 1, format, type, 0); 154 const GLint heightsize = 155 __glImageSize(height, 1, 1, format, type, 0); 156 GLubyte *const buf = 157 malloc((widthsize > heightsize) ? widthsize : heightsize); 158 159 if (buf == NULL) { 160 /* Throw data away */ 161 _XEatData(dpy, compsize); 162 __glXSetError(gc, GL_OUT_OF_MEMORY); 163 164 UnlockDisplay(dpy); 165 SyncHandle(); 166 return; 167 } 168 else { 169 int extra; 170 171 extra = 4 - (widthsize & 3); 172 _XRead(dpy, (char *) buf, widthsize); 173 if (extra < 4) { 174 _XEatData(dpy, extra); 175 } 176 177 __glEmptyImage(gc, 1, width, 1, 1, format, type, buf, row); 178 179 extra = 4 - (heightsize & 3); 180 _XRead(dpy, (char *) buf, heightsize); 181 if (extra < 4) { 182 _XEatData(dpy, extra); 183 } 184 185 __glEmptyImage(gc, 1, height, 1, 1, format, type, buf, column); 186 187 free((char *) buf); 188 } 189 } 190 } 191 } 192 } 193
