Retire miniglx and move the actual glx code up to src/glx

1 files changed, 974 insertions, 0 deletions

diff --git a/src/glx/single2.c b/src/glx/single2.c
new file mode 100644
index 0000000000..9ecf589fff
--- /dev/null
+++ b/src/glx/single2.c
@@ -0,0 +1,974 @@
+/*
+ * 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.
+ */
+
+#include <stdio.h>
+#include <assert.h>
+#include "glxclient.h"
+#include "packsingle.h"
+#include "glxextensions.h"
+#include "indirect.h"
+#include "indirect_vertex_array.h"
+#include "glapitable.h"
+#include "glapidispatch.h"
+#include "glapi.h"
+#ifdef USE_XCB
+#include <xcb/xcb.h>
+#include <xcb/glx.h>
+#include <X11/Xlib-xcb.h>
+#endif /* USE_XCB */
+
+
+/* Used for GL_ARB_transpose_matrix */
+static void
+TransposeMatrixf(GLfloat m[16])
+{
+   int i, j;
+   for (i = 0; i < 4; i++) {
+      for (j = 0; j < i; j++) {
+         GLfloat tmp = m[i * 4 + j];
+         m[i * 4 + j] = m[j * 4 + i];
+         m[j * 4 + i] = tmp;
+      }
+   }
+}
+
+/* Used for GL_ARB_transpose_matrix */
+static void
+TransposeMatrixb(GLboolean m[16])
+{
+   int i, j;
+   for (i = 0; i < 4; i++) {
+      for (j = 0; j < i; j++) {
+         GLboolean tmp = m[i * 4 + j];
+         m[i * 4 + j] = m[j * 4 + i];
+         m[j * 4 + i] = tmp;
+      }
+   }
+}
+
+/* Used for GL_ARB_transpose_matrix */
+static void
+TransposeMatrixd(GLdouble m[16])
+{
+   int i, j;
+   for (i = 0; i < 4; i++) {
+      for (j = 0; j < i; j++) {
+         GLdouble tmp = m[i * 4 + j];
+         m[i * 4 + j] = m[j * 4 + i];
+         m[j * 4 + i] = tmp;
+      }
+   }
+}
+
+/* Used for GL_ARB_transpose_matrix */
+static void
+TransposeMatrixi(GLint m[16])
+{
+   int i, j;
+   for (i = 0; i < 4; i++) {
+      for (j = 0; j < i; j++) {
+         GLint tmp = m[i * 4 + j];
+         m[i * 4 + j] = m[j * 4 + i];
+         m[j * 4 + i] = tmp;
+      }
+   }
+}
+
+
+/**
+ * Remap a transpose-matrix enum to a non-transpose-matrix enum.  Enums
+ * that are not transpose-matrix enums are unaffected.
+ */
+static GLenum
+RemapTransposeEnum(GLenum e)
+{
+   switch (e) {
+   case GL_TRANSPOSE_MODELVIEW_MATRIX:
+   case GL_TRANSPOSE_PROJECTION_MATRIX:
+   case GL_TRANSPOSE_TEXTURE_MATRIX:
+      return e - (GL_TRANSPOSE_MODELVIEW_MATRIX - GL_MODELVIEW_MATRIX);
+   case GL_TRANSPOSE_COLOR_MATRIX:
+      return GL_COLOR_MATRIX;
+   default:
+      return e;
+   };
+}
+
+
+GLenum
+__indirect_glGetError(void)
+{
+   __GLX_SINGLE_DECLARE_VARIABLES();
+   GLuint retval = GL_NO_ERROR;
+   xGLXGetErrorReply reply;
+
+   if (gc->error) {
+      /* Use internal error first */
+      retval = gc->error;
+      gc->error = GL_NO_ERROR;
+      return retval;
+   }
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_GetError, 0);
+   __GLX_SINGLE_READ_XREPLY();
+   retval = reply.error;
+   __GLX_SINGLE_END();
+
+   return retval;
+}
+
+
+/**
+ * Get the selected attribute from the client state.
+ *
+ * \returns
+ * On success \c GL_TRUE is returned.  Otherwise, \c GL_FALSE is returned.
+ */
+static GLboolean
+get_client_data(__GLXcontext * gc, GLenum cap, GLintptr * data)
+{
+   GLboolean retval = GL_TRUE;
+   __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
+   const GLint tex_unit = __glXGetActiveTextureUnit(state);
+
+
+   switch (cap) {
+   case GL_VERTEX_ARRAY:
+   case GL_NORMAL_ARRAY:
+   case GL_COLOR_ARRAY:
+   case GL_INDEX_ARRAY:
+   case GL_EDGE_FLAG_ARRAY:
+   case GL_SECONDARY_COLOR_ARRAY:
+   case GL_FOG_COORD_ARRAY:
+      retval = __glXGetArrayEnable(state, cap, 0, data);
+      break;
+
+   case GL_VERTEX_ARRAY_SIZE:
+      retval = __glXGetArraySize(state, GL_VERTEX_ARRAY, 0, data);
+      break;
+   case GL_COLOR_ARRAY_SIZE:
+      retval = __glXGetArraySize(state, GL_COLOR_ARRAY, 0, data);
+      break;
+   case GL_SECONDARY_COLOR_ARRAY_SIZE:
+      retval = __glXGetArraySize(state, GL_SECONDARY_COLOR_ARRAY, 0, data);
+      break;
+
+   case GL_VERTEX_ARRAY_TYPE:
+      retval = __glXGetArrayType(state, GL_VERTEX_ARRAY, 0, data);
+      break;
+   case GL_NORMAL_ARRAY_TYPE:
+      retval = __glXGetArrayType(state, GL_NORMAL_ARRAY, 0, data);
+      break;
+   case GL_INDEX_ARRAY_TYPE:
+      retval = __glXGetArrayType(state, GL_INDEX_ARRAY, 0, data);
+      break;
+   case GL_COLOR_ARRAY_TYPE:
+      retval = __glXGetArrayType(state, GL_COLOR_ARRAY, 0, data);
+      break;
+   case GL_SECONDARY_COLOR_ARRAY_TYPE:
+      retval = __glXGetArrayType(state, GL_SECONDARY_COLOR_ARRAY, 0, data);
+      break;
+   case GL_FOG_COORD_ARRAY_TYPE:
+      retval = __glXGetArrayType(state, GL_FOG_COORD_ARRAY, 0, data);
+      break;
+
+   case GL_VERTEX_ARRAY_STRIDE:
+      retval = __glXGetArrayStride(state, GL_VERTEX_ARRAY, 0, data);
+      break;
+   case GL_NORMAL_ARRAY_STRIDE:
+      retval = __glXGetArrayStride(state, GL_NORMAL_ARRAY, 0, data);
+      break;
+   case GL_INDEX_ARRAY_STRIDE:
+      retval = __glXGetArrayStride(state, GL_INDEX_ARRAY, 0, data);
+      break;
+   case GL_EDGE_FLAG_ARRAY_STRIDE:
+      retval = __glXGetArrayStride(state, GL_EDGE_FLAG_ARRAY, 0, data);
+      break;
+   case GL_COLOR_ARRAY_STRIDE:
+      retval = __glXGetArrayStride(state, GL_COLOR_ARRAY, 0, data);
+      break;
+   case GL_SECONDARY_COLOR_ARRAY_STRIDE:
+      retval = __glXGetArrayStride(state, GL_SECONDARY_COLOR_ARRAY, 0, data);
+      break;
+   case GL_FOG_COORD_ARRAY_STRIDE:
+      retval = __glXGetArrayStride(state, GL_FOG_COORD_ARRAY, 0, data);
+      break;
+
+   case GL_TEXTURE_COORD_ARRAY:
+      retval =
+         __glXGetArrayEnable(state, GL_TEXTURE_COORD_ARRAY, tex_unit, data);
+      break;
+   case GL_TEXTURE_COORD_ARRAY_SIZE:
+      retval =
+         __glXGetArraySize(state, GL_TEXTURE_COORD_ARRAY, tex_unit, data);
+      break;
+   case GL_TEXTURE_COORD_ARRAY_TYPE:
+      retval =
+         __glXGetArrayType(state, GL_TEXTURE_COORD_ARRAY, tex_unit, data);
+      break;
+   case GL_TEXTURE_COORD_ARRAY_STRIDE:
+      retval =
+         __glXGetArrayStride(state, GL_TEXTURE_COORD_ARRAY, tex_unit, data);
+      break;
+
+   case GL_MAX_ELEMENTS_VERTICES:
+   case GL_MAX_ELEMENTS_INDICES:
+      retval = GL_TRUE;
+      *data = ~0UL;
+      break;
+
+
+   case GL_PACK_ROW_LENGTH:
+      *data = (GLintptr) state->storePack.rowLength;
+      break;
+   case GL_PACK_IMAGE_HEIGHT:
+      *data = (GLintptr) state->storePack.imageHeight;
+      break;
+   case GL_PACK_SKIP_ROWS:
+      *data = (GLintptr) state->storePack.skipRows;
+      break;
+   case GL_PACK_SKIP_PIXELS:
+      *data = (GLintptr) state->storePack.skipPixels;
+      break;
+   case GL_PACK_SKIP_IMAGES:
+      *data = (GLintptr) state->storePack.skipImages;
+      break;
+   case GL_PACK_ALIGNMENT:
+      *data = (GLintptr) state->storePack.alignment;
+      break;
+   case GL_PACK_SWAP_BYTES:
+      *data = (GLintptr) state->storePack.swapEndian;
+      break;
+   case GL_PACK_LSB_FIRST:
+      *data = (GLintptr) state->storePack.lsbFirst;
+      break;
+   case GL_UNPACK_ROW_LENGTH:
+      *data = (GLintptr) state->storeUnpack.rowLength;
+      break;
+   case GL_UNPACK_IMAGE_HEIGHT:
+      *data = (GLintptr) state->storeUnpack.imageHeight;
+      break;
+   case GL_UNPACK_SKIP_ROWS:
+      *data = (GLintptr) state->storeUnpack.skipRows;
+      break;
+   case GL_UNPACK_SKIP_PIXELS:
+      *data = (GLintptr) state->storeUnpack.skipPixels;
+      break;
+   case GL_UNPACK_SKIP_IMAGES:
+      *data = (GLintptr) state->storeUnpack.skipImages;
+      break;
+   case GL_UNPACK_ALIGNMENT:
+      *data = (GLintptr) state->storeUnpack.alignment;
+      break;
+   case GL_UNPACK_SWAP_BYTES:
+      *data = (GLintptr) state->storeUnpack.swapEndian;
+      break;
+   case GL_UNPACK_LSB_FIRST:
+      *data = (GLintptr) state->storeUnpack.lsbFirst;
+      break;
+   case GL_CLIENT_ATTRIB_STACK_DEPTH:
+      *data = (GLintptr) (gc->attributes.stackPointer - gc->attributes.stack);
+      break;
+   case GL_MAX_CLIENT_ATTRIB_STACK_DEPTH:
+      *data = (GLintptr) __GL_CLIENT_ATTRIB_STACK_DEPTH;
+      break;
+   case GL_CLIENT_ACTIVE_TEXTURE:
+      *data = (GLintptr) (tex_unit + GL_TEXTURE0);
+      break;
+
+   default:
+      retval = GL_FALSE;
+      break;
+   }
+
+
+   return retval;
+}
+
+
+void
+__indirect_glGetBooleanv(GLenum val, GLboolean * b)
+{
+   const GLenum origVal = val;
+   __GLX_SINGLE_DECLARE_VARIABLES();
+   xGLXSingleReply reply;
+
+   val = RemapTransposeEnum(val);
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_GetBooleanv, 4);
+   __GLX_SINGLE_PUT_LONG(0, val);
+   __GLX_SINGLE_READ_XREPLY();
+   __GLX_SINGLE_GET_SIZE(compsize);
+
+   if (compsize == 0) {
+      /*
+       ** Error occured; don't modify user's buffer.
+       */
+   }
+   else {
+      GLintptr data;
+
+      /*
+       ** We still needed to send the request to the server in order to
+       ** find out whether it was legal to make a query (it's illegal,
+       ** for example, to call a query between glBegin() and glEnd()).
+       */
+
+      if (get_client_data(gc, val, &data)) {
+         *b = (GLboolean) data;
+      }
+      else {
+         /*
+          ** Not a local value, so use what we got from the server.
+          */
+         if (compsize == 1) {
+            __GLX_SINGLE_GET_CHAR(b);
+         }
+         else {
+            __GLX_SINGLE_GET_CHAR_ARRAY(b, compsize);
+            if (val != origVal) {
+               /* matrix transpose */
+               TransposeMatrixb(b);
+            }
+         }
+      }
+   }
+   __GLX_SINGLE_END();
+}
+
+void
+__indirect_glGetDoublev(GLenum val, GLdouble * d)
+{
+   const GLenum origVal = val;
+   __GLX_SINGLE_DECLARE_VARIABLES();
+   xGLXSingleReply reply;
+
+   val = RemapTransposeEnum(val);
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_GetDoublev, 4);
+   __GLX_SINGLE_PUT_LONG(0, val);
+   __GLX_SINGLE_READ_XREPLY();
+   __GLX_SINGLE_GET_SIZE(compsize);
+
+   if (compsize == 0) {
+      /*
+       ** Error occured; don't modify user's buffer.
+       */
+   }
+   else {
+      GLintptr data;
+
+      /*
+       ** We still needed to send the request to the server in order to
+       ** find out whether it was legal to make a query (it's illegal,
+       ** for example, to call a query between glBegin() and glEnd()).
+       */
+
+      if (get_client_data(gc, val, &data)) {
+         *d = (GLdouble) data;
+      }
+      else {
+         /*
+          ** Not a local value, so use what we got from the server.
+          */
+         if (compsize == 1) {
+            __GLX_SINGLE_GET_DOUBLE(d);
+         }
+         else {
+            __GLX_SINGLE_GET_DOUBLE_ARRAY(d, compsize);
+            if (val != origVal) {
+               /* matrix transpose */
+               TransposeMatrixd(d);
+            }
+         }
+      }
+   }
+   __GLX_SINGLE_END();
+}
+
+void
+__indirect_glGetFloatv(GLenum val, GLfloat * f)
+{
+   const GLenum origVal = val;
+   __GLX_SINGLE_DECLARE_VARIABLES();
+   xGLXSingleReply reply;
+
+   val = RemapTransposeEnum(val);
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_GetFloatv, 4);
+   __GLX_SINGLE_PUT_LONG(0, val);
+   __GLX_SINGLE_READ_XREPLY();
+   __GLX_SINGLE_GET_SIZE(compsize);
+
+   if (compsize == 0) {
+      /*
+       ** Error occured; don't modify user's buffer.
+       */
+   }
+   else {
+      GLintptr data;
+
+      /*
+       ** We still needed to send the request to the server in order to
+       ** find out whether it was legal to make a query (it's illegal,
+       ** for example, to call a query between glBegin() and glEnd()).
+       */
+
+      if (get_client_data(gc, val, &data)) {
+         *f = (GLfloat) data;
+      }
+      else {
+         /*
+          ** Not a local value, so use what we got from the server.
+          */
+         if (compsize == 1) {
+            __GLX_SINGLE_GET_FLOAT(f);
+         }
+         else {
+            __GLX_SINGLE_GET_FLOAT_ARRAY(f, compsize);
+            if (val != origVal) {
+               /* matrix transpose */
+               TransposeMatrixf(f);
+            }
+         }
+      }
+   }
+   __GLX_SINGLE_END();
+}
+
+void
+__indirect_glGetIntegerv(GLenum val, GLint * i)
+{
+   const GLenum origVal = val;
+   __GLX_SINGLE_DECLARE_VARIABLES();
+   xGLXSingleReply reply;
+
+   val = RemapTransposeEnum(val);
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_GetIntegerv, 4);
+   __GLX_SINGLE_PUT_LONG(0, val);
+   __GLX_SINGLE_READ_XREPLY();
+   __GLX_SINGLE_GET_SIZE(compsize);
+
+   if (compsize == 0) {
+      /*
+       ** Error occured; don't modify user's buffer.
+       */
+   }
+   else {
+      GLintptr data;
+
+      /*
+       ** We still needed to send the request to the server in order to
+       ** find out whether it was legal to make a query (it's illegal,
+       ** for example, to call a query between glBegin() and glEnd()).
+       */
+
+      if (get_client_data(gc, val, &data)) {
+         *i = (GLint) data;
+      }
+      else {
+         /*
+          ** Not a local value, so use what we got from the server.
+          */
+         if (compsize == 1) {
+            __GLX_SINGLE_GET_LONG(i);
+         }
+         else {
+            __GLX_SINGLE_GET_LONG_ARRAY(i, compsize);
+            if (val != origVal) {
+               /* matrix transpose */
+               TransposeMatrixi(i);
+            }
+         }
+      }
+   }
+   __GLX_SINGLE_END();
+}
+
+/*
+** Send all pending commands to server.
+*/
+void
+__indirect_glFlush(void)
+{
+   __GLX_SINGLE_DECLARE_VARIABLES();
+
+   if (!dpy)
+      return;
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_Flush, 0);
+   __GLX_SINGLE_END();
+
+   /* And finally flush the X protocol data */
+   XFlush(dpy);
+}
+
+void
+__indirect_glFeedbackBuffer(GLsizei size, GLenum type, GLfloat * buffer)
+{
+   __GLX_SINGLE_DECLARE_VARIABLES();
+
+   if (!dpy)
+      return;
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_FeedbackBuffer, 8);
+   __GLX_SINGLE_PUT_LONG(0, size);
+   __GLX_SINGLE_PUT_LONG(4, type);
+   __GLX_SINGLE_END();
+
+   gc->feedbackBuf = buffer;
+}
+
+void
+__indirect_glSelectBuffer(GLsizei numnames, GLuint * buffer)
+{
+   __GLX_SINGLE_DECLARE_VARIABLES();
+
+   if (!dpy)
+      return;
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_SelectBuffer, 4);
+   __GLX_SINGLE_PUT_LONG(0, numnames);
+   __GLX_SINGLE_END();
+
+   gc->selectBuf = buffer;
+}
+
+GLint
+__indirect_glRenderMode(GLenum mode)
+{
+   __GLX_SINGLE_DECLARE_VARIABLES();
+   GLint retval = 0;
+   xGLXRenderModeReply reply;
+
+   if (!dpy)
+      return -1;
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_RenderMode, 4);
+   __GLX_SINGLE_PUT_LONG(0, mode);
+   __GLX_SINGLE_READ_XREPLY();
+   __GLX_SINGLE_GET_RETVAL(retval, GLint);
+
+   if (reply.newMode != mode) {
+      /*
+       ** Switch to new mode did not take effect, therefore an error
+       ** occured.  When an error happens the server won't send us any
+       ** other data.
+       */
+   }
+   else {
+      /* Read the feedback or selection data */
+      if (gc->renderMode == GL_FEEDBACK) {
+         __GLX_SINGLE_GET_SIZE(compsize);
+         __GLX_SINGLE_GET_FLOAT_ARRAY(gc->feedbackBuf, compsize);
+      }
+      else if (gc->renderMode == GL_SELECT) {
+         __GLX_SINGLE_GET_SIZE(compsize);
+         __GLX_SINGLE_GET_LONG_ARRAY(gc->selectBuf, compsize);
+      }
+      gc->renderMode = mode;
+   }
+   __GLX_SINGLE_END();
+
+   return retval;
+}
+
+void
+__indirect_glFinish(void)
+{
+   __GLX_SINGLE_DECLARE_VARIABLES();
+   xGLXSingleReply reply;
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_Finish, 0);
+   __GLX_SINGLE_READ_XREPLY();
+   __GLX_SINGLE_END();
+}
+
+
+/**
+ * Extract the major and minor version numbers from a version string.
+ */
+static void
+version_from_string(const char *ver, int *major_version, int *minor_version)
+{
+   const char *end;
+   long major;
+   long minor;
+
+   major = strtol(ver, (char **) &end, 10);
+   minor = strtol(end + 1, NULL, 10);
+   *major_version = major;
+   *minor_version = minor;
+}
+
+
+const GLubyte *
+__indirect_glGetString(GLenum name)
+{
+   __GLXcontext *gc = __glXGetCurrentContext();
+   Display *dpy = gc->currentDpy;
+   GLubyte *s = NULL;
+
+   if (!dpy)
+      return 0;
+
+   /*
+    ** Return the cached copy if the string has already been fetched
+    */
+   switch (name) {
+   case GL_VENDOR:
+      if (gc->vendor)
+         return gc->vendor;
+      break;
+   case GL_RENDERER:
+      if (gc->renderer)
+         return gc->renderer;
+      break;
+   case GL_VERSION:
+      if (gc->version)
+         return gc->version;
+      break;
+   case GL_EXTENSIONS:
+      if (gc->extensions)
+         return gc->extensions;
+      break;
+   default:
+      __glXSetError(gc, GL_INVALID_ENUM);
+      return 0;
+   }
+
+   /*
+    ** Get requested string from server
+    */
+
+   (void) __glXFlushRenderBuffer(gc, gc->pc);
+   s = (GLubyte *) __glXGetString(dpy, gc->majorOpcode, gc->currentContextTag,
+                                  name);
+   if (!s) {
+      /* Throw data on the floor */
+      __glXSetError(gc, GL_OUT_OF_MEMORY);
+   }
+   else {
+      /*
+       ** Update local cache
+       */
+      switch (name) {
+      case GL_VENDOR:
+         gc->vendor = s;
+         break;
+
+      case GL_RENDERER:
+         gc->renderer = s;
+         break;
+
+      case GL_VERSION:{
+            int client_major;
+            int client_minor;
+
+            version_from_string((char *) s,
+                                &gc->server_major, &gc->server_minor);
+            __glXGetGLVersion(&client_major, &client_minor);
+
+            if ((gc->server_major < client_major)
+                || ((gc->server_major == client_major)
+                    && (gc->server_minor <= client_minor))) {
+               gc->version = s;
+            }
+            else {
+               /* Allow 7 bytes for the client-side GL version.  This allows
+                * for upto version 999.999.  I'm not holding my breath for
+                * that one!  The extra 4 is for the ' ()\0' that will be
+                * added.
+                */
+               const size_t size = 7 + strlen((char *) s) + 4;
+
+               gc->version = Xmalloc(size);
+               if (gc->version == NULL) {
+                  /* If we couldn't allocate memory for the new string,
+                   * make a best-effort and just copy the client-side version
+                   * to the string and use that.  It probably doesn't
+                   * matter what is done here.  If there not memory available
+                   * for a short string, the system is probably going to die
+                   * soon anyway.
+                   */
+                  snprintf((char *) s, strlen((char *) s) + 1, "%u.%u",
+                           client_major, client_minor);
+                  gc->version = s;
+               }
+               else {
+                  snprintf((char *) gc->version, size, "%u.%u (%s)",
+                           client_major, client_minor, s);
+                  Xfree(s);
+                  s = gc->version;
+               }
+            }
+            break;
+         }
+
+      case GL_EXTENSIONS:{
+            int major = 1;
+            int minor = 0;
+
+            /* This code is currently disabled.  I was reminded that some
+             * vendors intentionally exclude some extensions from their
+             * extension string that are part of the core version they
+             * advertise.  In particular, on Nvidia drivers this means that
+             * the functionality is supported by the driver, but is not
+             * hardware accelerated.  For example, a TNT will show core
+             * version 1.5, but most of the post-1.2 functionality is a
+             * software fallback.
+             *
+             * I don't want to break applications that rely on this odd
+             * behavior.  At the same time, the code is written and tested,
+             * so I didn't want to throw it away.  Therefore, the code is here
+             * but disabled.  In the future, we may wish to and an environment
+             * variable to enable it.
+             */
+
+#if 0
+            /* Call glGetString just to make sure that gc->server_major and
+             * gc->server_minor are set.  This version may be higher than we
+             * can completely support, but it may imply support for some
+             * extensions that we can support.
+             *
+             * For example, at the time of this writing, the client-side
+             * library only supports upto core GL version 1.2.  However, cubic
+             * textures, multitexture, multisampling, and some other 1.3
+             * features are supported.  If the server reports back version
+             * 1.3, but does not report all of those extensions, we will
+             * enable them.
+             */
+            (void *) glGetString(GL_VERSION);
+            major = gc->server_major, minor = gc->server_minor;
+#endif
+
+            __glXCalculateUsableGLExtensions(gc, (char *) s, major, minor);
+            XFree(s);
+            s = gc->extensions;
+            break;
+         }
+      }
+   }
+   return s;
+}
+
+GLboolean
+__indirect_glIsEnabled(GLenum cap)
+{
+   __GLX_SINGLE_DECLARE_VARIABLES();
+   __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
+   xGLXSingleReply reply;
+   GLboolean retval = 0;
+   GLintptr enable;
+
+   if (!dpy)
+      return 0;
+
+   switch (cap) {
+   case GL_VERTEX_ARRAY:
+   case GL_NORMAL_ARRAY:
+   case GL_COLOR_ARRAY:
+   case GL_INDEX_ARRAY:
+   case GL_EDGE_FLAG_ARRAY:
+   case GL_SECONDARY_COLOR_ARRAY:
+   case GL_FOG_COORD_ARRAY:
+      retval = __glXGetArrayEnable(state, cap, 0, &enable);
+      assert(retval);
+      return (GLboolean) enable;
+      break;
+   case GL_TEXTURE_COORD_ARRAY:
+      retval = __glXGetArrayEnable(state, GL_TEXTURE_COORD_ARRAY,
+                                   __glXGetActiveTextureUnit(state), &enable);
+      assert(retval);
+      return (GLboolean) enable;
+      break;
+   }
+
+   __GLX_SINGLE_LOAD_VARIABLES();
+   __GLX_SINGLE_BEGIN(X_GLsop_IsEnabled, 4);
+   __GLX_SINGLE_PUT_LONG(0, cap);
+   __GLX_SINGLE_READ_XREPLY();
+   __GLX_SINGLE_GET_RETVAL(retval, GLboolean);
+   __GLX_SINGLE_END();
+   return retval;
+}
+
+void
+__indirect_glGetPointerv(GLenum pname, void **params)
+{
+   __GLXcontext *gc = __glXGetCurrentContext();
+   __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
+   Display *dpy = gc->currentDpy;
+
+   if (!dpy)
+      return;
+
+   switch (pname) {
+   case GL_VERTEX_ARRAY_POINTER:
+   case GL_NORMAL_ARRAY_POINTER:
+   case GL_COLOR_ARRAY_POINTER:
+   case GL_INDEX_ARRAY_POINTER:
+   case GL_EDGE_FLAG_ARRAY_POINTER:
+      __glXGetArrayPointer(state, pname - GL_VERTEX_ARRAY_POINTER
+                           + GL_VERTEX_ARRAY, 0, params);
+      return;
+   case GL_TEXTURE_COORD_ARRAY_POINTER:
+      __glXGetArrayPointer(state, GL_TEXTURE_COORD_ARRAY,
+                           __glXGetActiveTextureUnit(state), params);
+      return;
+   case GL_SECONDARY_COLOR_ARRAY_POINTER:
+   case GL_FOG_COORD_ARRAY_POINTER:
+      __glXGetArrayPointer(state, pname - GL_FOG_COORD_ARRAY_POINTER
+                           + GL_FOG_COORD_ARRAY, 0, params);
+      return;
+   case GL_FEEDBACK_BUFFER_POINTER:
+      *params = (void *) gc->feedbackBuf;
+      return;
+   case GL_SELECTION_BUFFER_POINTER:
+      *params = (void *) gc->selectBuf;
+      return;
+   default:
+      __glXSetError(gc, GL_INVALID_ENUM);
+      return;
+   }
+}
+
+
+
+/**
+ * This was previously auto-generated, but we need to special-case
+ * how we handle writing into the 'residences' buffer when n%4!=0.
+ */
+#define X_GLsop_AreTexturesResident 143
+GLboolean
+__indirect_glAreTexturesResident(GLsizei n, const GLuint * textures,
+                                 GLboolean * residences)
+{
+   __GLXcontext *const gc = __glXGetCurrentContext();
+   Display *const dpy = gc->currentDpy;
+   GLboolean retval = (GLboolean) 0;
+   const GLuint cmdlen = 4 + __GLX_PAD((n * 4));
+   if (__builtin_expect((n >= 0) && (dpy != NULL), 1)) {
+#ifdef USE_XCB
+      xcb_connection_t *c = XGetXCBConnection(dpy);
+      (void) __glXFlushRenderBuffer(gc, gc->pc);
+      xcb_glx_are_textures_resident_reply_t *reply =
+         xcb_glx_are_textures_resident_reply(c,
+                                             xcb_glx_are_textures_resident
+                                             (c, gc->currentContextTag, n,
+                                              textures), NULL);
+      (void) memcpy(residences, xcb_glx_are_textures_resident_data(reply),
+                    xcb_glx_are_textures_resident_data_length(reply) *
+                    sizeof(GLboolean));
+      retval = reply->ret_val;
+      free(reply);
+#else
+      GLubyte const *pc =
+         __glXSetupSingleRequest(gc, X_GLsop_AreTexturesResident, cmdlen);
+      (void) memcpy((void *) (pc + 0), (void *) (&n), 4);
+      (void) memcpy((void *) (pc + 4), (void *) (textures), (n * 4));
+      if (n & 3) {
+         /* n is not a multiple of four.
+          * When reply_is_always_array is TRUE, __glXReadReply() will
+          * put a multiple of four bytes into the dest buffer.  If the
+          * caller's buffer is not a multiple of four in size, we'll write
+          * out of bounds.  So use a temporary buffer that's a few bytes
+          * larger.
+          */
+         GLboolean *res4 = malloc((n + 3) & ~3);
+         retval = (GLboolean) __glXReadReply(dpy, 1, res4, GL_TRUE);
+         memcpy(residences, res4, n);
+         free(res4);
+      }
+      else {
+         retval = (GLboolean) __glXReadReply(dpy, 1, residences, GL_TRUE);
+      }
+      UnlockDisplay(dpy);
+      SyncHandle();
+#endif /* USE_XCB */
+   }
+   return retval;
+}
+
+
+/**
+ * This was previously auto-generated, but we need to special-case
+ * how we handle writing into the 'residences' buffer when n%4!=0.
+ */
+#define X_GLvop_AreTexturesResidentEXT 11
+GLboolean
+glAreTexturesResidentEXT(GLsizei n, const GLuint * textures,
+                         GLboolean * residences)
+{
+   __GLXcontext *const gc = __glXGetCurrentContext();
+
+   if (gc->isDirect) {
+      return CALL_AreTexturesResident(GET_DISPATCH(),
+                                      (n, textures, residences));
+   }
+   else {
+      __GLXcontext *const gc = __glXGetCurrentContext();
+      Display *const dpy = gc->currentDpy;
+      GLboolean retval = (GLboolean) 0;
+      const GLuint cmdlen = 4 + __GLX_PAD((n * 4));
+      if (__builtin_expect((n >= 0) && (dpy != NULL), 1)) {
+         GLubyte const *pc =
+            __glXSetupVendorRequest(gc, X_GLXVendorPrivateWithReply,
+                                    X_GLvop_AreTexturesResidentEXT,
+                                    cmdlen);
+         (void) memcpy((void *) (pc + 0), (void *) (&n), 4);
+         (void) memcpy((void *) (pc + 4), (void *) (textures), (n * 4));
+         if (n & 3) {
+            /* see comments in __indirect_glAreTexturesResident() */
+            GLboolean *res4 = malloc((n + 3) & ~3);
+            retval = (GLboolean) __glXReadReply(dpy, 1, res4, GL_TRUE);
+            memcpy(residences, res4, n);
+            free(res4);
+         }
+         else {
+            retval = (GLboolean) __glXReadReply(dpy, 1, residences, GL_TRUE);
+         }
+         UnlockDisplay(dpy);
+         SyncHandle();
+      }
+      return retval;
+   }
+}