1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright © 2011 Intel Corporation 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the "Software"), 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * to deal in the Software without restriction, including without limitation 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and/or sell copies of the Software, and to permit persons to whom the 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software is furnished to do so, subject to the following conditions: 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice (including the next 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * paragraph) shall be included in all copies or substantial portions of the 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software. 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * DEALINGS IN THE SOFTWARE. 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include <string.h> 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include <ctype.h> 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "glxclient.h" 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include <xcb/glx.h> 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include <X11/Xlib-xcb.h> 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_X_HIDDEN void 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org__glX_send_client_info(struct glx_display *glx_dpy) 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const unsigned ext_length = strlen("GLX_ARB_create_context"); 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const unsigned prof_length = strlen("_profile"); 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org char *gl_extension_string; 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org int gl_extension_length; 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org xcb_connection_t *c; 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org Bool any_screen_has_ARB_create_context = False; 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org Bool any_screen_has_ARB_create_context_profile = False; 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned i; 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org static const uint32_t gl_versions[] = { 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 1, 4, 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org }; 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org static const uint32_t gl_versions_profiles[] = { 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 1, 4, 0x00000000, 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org }; 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org static const char glx_extensions[] = 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org "GLX_ARB_create_context GLX_ARB_create_context_profile"; 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* There are three possible flavors of the client info structure that the 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * client could send to the server. The version sent depends on the 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * combination of GLX versions and extensions supported by the client and 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the server. 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Server supports Client sends 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * ---------------------------------------------------------------------- 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GLX version = 1.0 Nothing. 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GLX version >= 1.1 struct GLXClientInfo 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GLX version >= 1.4 and 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GLX_ARB_create_context struct glXSetClientInfoARB 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GLX version >= 1.4 and 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GLX_ARB_create_context_profile struct glXSetClientInfo2ARB 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GLX_ARB_create_context and GLX_ARB_create_context_profile use FBConfigs, 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and these only exist in GLX 1.4 or with GLX_SGIX_fbconfig. I can't 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * imagine an implementation that supports GLX_SGIX_fbconfig and 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GLX_ARB_create_context but not GLX 1.4. Making GLX 1.4 a hard 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * requirement in this case does not seem like a limitation. 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * This library currently only supports struct GLXClientInfo. 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (glx_dpy->majorVersion == 1 && glx_dpy->minorVersion == 0) 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return; 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Determine whether any screen on the server supports either of the 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * create-context extensions. 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0; i < ScreenCount(glx_dpy->dpy); i++) { 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct glx_screen *src = glx_dpy->screens[i]; 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const char *haystack = src->serverGLXexts; 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org while (haystack != NULL) { 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org char *match = strstr(haystack, "GLX_ARB_create_context"); 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (match == NULL) 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org match += ext_length; 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch (match[0]) { 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case '\0': 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case ' ': 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org any_screen_has_ARB_create_context = True; 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case '_': 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (strncmp(match, "_profile", prof_length) == 0 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org && (match[prof_length] == '\0' 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org || match[prof_length] == ' ')) { 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org any_screen_has_ARB_create_context_profile = True; 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org match += prof_length; 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org haystack = match; 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_extension_string = __glXGetClientGLExtensionString(); 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_extension_length = strlen(gl_extension_string) + 1; 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org c = XGetXCBConnection(glx_dpy->dpy); 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Depending on the GLX verion and the available extensions on the server, 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * send the correct "flavor" of protocol to the server. 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE ORDER IS IMPORTANT. We want to send the most recent version of the 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * protocol that the server can support. 125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (glx_dpy->majorVersion == 1 && glx_dpy->minorVersion == 4 127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org && any_screen_has_ARB_create_context_profile) { 128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org xcb_glx_set_client_info_2arb(c, 129f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLX_MAJOR_VERSION, GLX_MINOR_VERSION, 130f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org sizeof(gl_versions_profiles) 131f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org / (3 * sizeof(gl_versions_profiles[0])), 132f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_extension_length, 133f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org strlen(glx_extensions) + 1, 134f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_versions_profiles, 135f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_extension_string, 136f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org glx_extensions); 137f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } else if (glx_dpy->majorVersion == 1 && glx_dpy->minorVersion == 4 138f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org && any_screen_has_ARB_create_context) { 139f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org xcb_glx_set_client_info_arb(c, 140f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLX_MAJOR_VERSION, GLX_MINOR_VERSION, 141f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org sizeof(gl_versions) 142f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org / (2 * sizeof(gl_versions[0])), 143f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_extension_length, 144f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org strlen(glx_extensions) + 1, 145f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_versions, 146f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_extension_string, 147f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org glx_extensions); 148f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } else { 149f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org xcb_glx_client_info(c, 150f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLX_MAJOR_VERSION, GLX_MINOR_VERSION, 151f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_extension_length, 152f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org gl_extension_string); 153f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 154f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 155f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org Xfree(gl_extension_string); 156f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 157