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/*

 * (C) Copyright IBM Corporation 2005

 * 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, sub license,

 * 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 and this permission notice (including the next

 * paragraph) 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 NON-INFRINGEMENT.  IN NO EVENT SHALL

 * IBM,

 * AND/OR THEIR SUPPLIERS 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.

 */

#include 

#include 

#include "indirect.h"

#include "glxclient.h"

#include "indirect_vertex_array.h"

#include 

#if !defined(__GNUC__)

#  define __builtin_expect(x, y) x

#endif

static void

do_vertex_attrib_enable(GLuint index, GLboolean val)

{

   struct glx_context *gc = __glXGetCurrentContext();

   __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);

   if (!__glXSetArrayEnable(state, GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB,

                            index, val)) {

      __glXSetError(gc, GL_INVALID_ENUM);

   }

}

void

__indirect_glEnableVertexAttribArray(GLuint index)

{

   do_vertex_attrib_enable(index, GL_TRUE);

}

void

__indirect_glDisableVertexAttribArray(GLuint index)

{

   do_vertex_attrib_enable(index, GL_FALSE);

}

static void

get_parameter(unsigned opcode, unsigned size, GLenum target, GLuint index,

              void *params)

{

   struct glx_context *const gc = __glXGetCurrentContext();

   Display *const dpy = gc->currentDpy;

   const GLuint cmdlen = 12;

   if (__builtin_expect(dpy != NULL, 1)) {

      GLubyte const *pc = __glXSetupVendorRequest(gc,

                                                  X_GLXVendorPrivateWithReply,

                                                  opcode, cmdlen);

      *((GLenum *) (pc + 0)) = target;

      *((GLuint *) (pc + 4)) = index;

      *((GLuint *) (pc + 8)) = 0;

      (void) __glXReadReply(dpy, size, params, GL_FALSE);

      UnlockDisplay(dpy);

      SyncHandle();

   }

   return;

}

void

__indirect_glGetProgramEnvParameterfvARB(GLenum target, GLuint index,

                                         GLfloat * params)

{

   get_parameter(1296, 4, target, index, params);

}

void

__indirect_glGetProgramEnvParameterdvARB(GLenum target, GLuint index,

                                         GLdouble * params)

{

   get_parameter(1297, 8, target, index, params);

}

void

__indirect_glGetProgramLocalParameterfvARB(GLenum target, GLuint index,

                                           GLfloat * params)

{

   get_parameter(1305, 4, target, index, params);

}

void

__indirect_glGetProgramLocalParameterdvARB(GLenum target, GLuint index,

                                           GLdouble * params)

{

   get_parameter(1306, 8, target, index, params);

}

void

__indirect_glGetVertexAttribPointerv(GLuint index, GLenum pname,

                                       GLvoid ** pointer)

{

   struct glx_context *const gc = __glXGetCurrentContext();

   __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);

   if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB) {

      __glXSetError(gc, GL_INVALID_ENUM);

   }

   if (!__glXGetArrayPointer(state, GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB,

                             index, pointer)) {

      __glXSetError(gc, GL_INVALID_VALUE);

   }

}

/**

 * Get the selected attribute from the vertex array state vector.

 *

 * \returns

 * On success \c GL_TRUE is returned.  Otherwise, \c GL_FALSE is returned.

 */

static GLboolean

get_attrib_array_data(__GLXattribute * state, GLuint index, GLenum cap,

                      GLintptr * data)

{

   GLboolean retval = GL_FALSE;

   const GLenum attrib = GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB;

   switch (cap) {

   case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB:

      retval = __glXGetArrayEnable(state, attrib, index, data);

      break;

   case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB:

      retval = __glXGetArraySize(state, attrib, index, data);

      break;

   case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB:

      retval = __glXGetArrayStride(state, attrib, index, data);

      break;

   case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB:

      retval = __glXGetArrayType(state, attrib, index, data);

      break;

   case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB:

      retval = __glXGetArrayNormalized(state, attrib, index, data);

      break;

   }

   return retval;

}

static void

get_vertex_attrib(struct glx_context * gc, unsigned vop,

                  GLuint index, GLenum pname, xReply * reply)

{

   Display *const dpy = gc->currentDpy;

   GLubyte *const pc = __glXSetupVendorRequest(gc,

                                               X_GLXVendorPrivateWithReply,

                                               vop, 8);

   *((uint32_t *) (pc + 0)) = index;

   *((uint32_t *) (pc + 4)) = pname;

   (void) _XReply(dpy, reply, 0, False);

}

void

__indirect_glGetVertexAttribiv(GLuint index, GLenum pname, GLint * params)

{

   struct glx_context *const gc = __glXGetCurrentContext();

   Display *const dpy = gc->currentDpy;

   __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);

   xGLXSingleReply reply;

   get_vertex_attrib(gc, 1303, index, pname, (xReply *) & reply);

   if (reply.size != 0) {

      GLintptr data;

      if (get_attrib_array_data(state, index, pname, &data)) {

         *params = (GLint) data;

      }

      else {

         if (reply.size == 1) {

            *params = (GLint) reply.pad3;

         }

         else {

            _XRead(dpy, (void *) params, 4 * reply.size);

         }

      }

   }

   UnlockDisplay(dpy);

   SyncHandle();

}

void

__indirect_glGetVertexAttribfv(GLuint index, GLenum pname,

                                  GLfloat * params)

{

   struct glx_context *const gc = __glXGetCurrentContext();

   Display *const dpy = gc->currentDpy;

   __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);

   xGLXSingleReply reply;

   get_vertex_attrib(gc, 1302, index, pname, (xReply *) & reply);

   if (reply.size != 0) {

      GLintptr data;

      if (get_attrib_array_data(state, index, pname, &data)) {

         *params = (GLfloat) data;

      }

      else {

         if (reply.size == 1) {

            (void) memcpy(params, &reply.pad3, sizeof(GLfloat));

         }

         else {

            _XRead(dpy, (void *) params, 4 * reply.size);

         }

      }

   }

   UnlockDisplay(dpy);

   SyncHandle();

}

void

__indirect_glGetVertexAttribdv(GLuint index, GLenum pname,

                                  GLdouble * params)

{

   struct glx_context *const gc = __glXGetCurrentContext();

   Display *const dpy = gc->currentDpy;

   __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);

   xGLXSingleReply reply;

   get_vertex_attrib(gc, 1301, index, pname, (xReply *) & reply);

   if (reply.size != 0) {

      GLintptr data;

      if (get_attrib_array_data(state, index, pname, &data)) {

         *params = (GLdouble) data;

      }

      else {

         if (reply.size == 1) {

            (void) memcpy(params, &reply.pad3, sizeof(GLdouble));

         }

         else {

            _XRead(dpy, (void *) params, 8 * reply.size);

         }

      }

   }

   UnlockDisplay(dpy);

   SyncHandle();

}