src/glx/x11/indirect_vertex_program.c

   1 /*
   2  * (C) Copyright IBM Corporation 2005
   3  * 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, sub license,
   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 and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  19  * IBM,
  20  * AND/OR THEIR SUPPLIERS 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
  26 #include <inttypes.h>
  27 #include <GL/gl.h>
  28 #include "indirect.h"
  29 #include "glxclient.h"
  30 #include "indirect_vertex_array.h"
  31 #include <GL/glxproto.h>
  32
  33 static void
  34 do_vertex_attrib_enable(GLuint index, GLboolean val)
  35 {
  36    __GLXcontext *gc = __glXGetCurrentContext();
  37    __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
  38
  39    if (!__glXSetArrayEnable(state, GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB,
  40                             index, val)) {
  41       __glXSetError(gc, GL_INVALID_ENUM);
  42    }
  43 }
  44
  45
  46 void
  47 __indirect_glEnableVertexAttribArrayARB(GLuint index)
  48 {
  49    do_vertex_attrib_enable(index, GL_TRUE);
  50 }
  51
  52
  53 void
  54 __indirect_glDisableVertexAttribArrayARB(GLuint index)
  55 {
  56    do_vertex_attrib_enable(index, GL_FALSE);
  57 }
  58
  59
  60 static void
  61 get_parameter(unsigned opcode, unsigned size, GLenum target, GLuint index,
  62               void *params)
  63 {
  64    __GLXcontext *const gc = __glXGetCurrentContext();
  65    Display *const dpy = gc->currentDpy;
  66    const GLuint cmdlen = 12;
  67
  68    if (__builtin_expect(dpy != NULL, 1)) {
  69       GLubyte const *pc = __glXSetupVendorRequest(gc,
  70                                                   X_GLXVendorPrivateWithReply,
  71                                                   opcode, cmdlen);
  72
  73       *((GLenum *) (pc + 0)) = target;
  74       *((GLuint *) (pc + 4)) = index;
  75       *((GLuint *) (pc + 8)) = 0;
  76
  77       (void) __glXReadReply(dpy, size, params, GL_FALSE);
  78       UnlockDisplay(dpy);
  79       SyncHandle();
  80    }
  81    return;
  82 }
  83
  84
  85 void
  86 __indirect_glGetProgramEnvParameterfvARB(GLenum target, GLuint index,
  87                                          GLfloat * params)
  88 {
  89    get_parameter(1296, 4, target, index, params);
  90 }
  91
  92
  93 void
  94 __indirect_glGetProgramEnvParameterdvARB(GLenum target, GLuint index,
  95                                          GLdouble * params)
  96 {
  97    get_parameter(1297, 8, target, index, params);
  98 }
  99
 100
 101 void
 102 __indirect_glGetProgramLocalParameterfvARB(GLenum target, GLuint index,
 103                                            GLfloat * params)
 104 {
 105    get_parameter(1305, 4, target, index, params);
 106 }
 107
 108
 109 void
 110 __indirect_glGetProgramLocalParameterdvARB(GLenum target, GLuint index,
 111                                            GLdouble * params)
 112 {
 113    get_parameter(1306, 8, target, index, params);
 114 }
 115
 116
 117 void
 118 __indirect_glGetVertexAttribPointervNV(GLuint index, GLenum pname,
 119                                        GLvoid ** pointer)
 120 {
 121    __GLXcontext *const gc = __glXGetCurrentContext();
 122    __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
 123
 124    if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB) {
 125       __glXSetError(gc, GL_INVALID_ENUM);
 126    }
 127
 128    if (!__glXGetArrayPointer(state, GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB,
 129                              index, pointer)) {
 130       __glXSetError(gc, GL_INVALID_VALUE);
 131    }
 132 }
 133
 134
 135 /**
 136  * Get the selected attribute from the vertex array state vector.
 137  *
 138  * \returns
 139  * On success \c GL_TRUE is returned.  Otherwise, \c GL_FALSE is returned.
 140  */
 141 static GLboolean
 142 get_attrib_array_data(__GLXattribute * state, GLuint index, GLenum cap,
 143                       GLintptr * data)
 144 {
 145    GLboolean retval = GL_FALSE;
 146    const GLenum attrib = GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB;
 147
 148    switch (cap) {
 149    case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB:
 150       retval = __glXGetArrayEnable(state, attrib, index, data);
 151       break;
 152
 153    case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB:
 154       retval = __glXGetArraySize(state, attrib, index, data);
 155       break;
 156
 157    case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB:
 158       retval = __glXGetArrayStride(state, attrib, index, data);
 159       break;
 160
 161    case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB:
 162       retval = __glXGetArrayType(state, attrib, index, data);
 163       break;
 164
 165    case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB:
 166       retval = __glXGetArrayNormalized(state, attrib, index, data);
 167       break;
 168    }
 169
 170
 171    return retval;
 172 }
 173
 174
 175 static void
 176 get_vertex_attrib(__GLXcontext * gc, unsigned vop,
 177                   GLuint index, GLenum pname, xReply * reply)
 178 {
 179    Display *const dpy = gc->currentDpy;
 180    GLubyte *const pc = __glXSetupVendorRequest(gc,
 181                                                X_GLXVendorPrivateWithReply,
 182                                                vop, 8);
 183
 184    *((uint32_t *) (pc + 0)) = index;
 185    *((uint32_t *) (pc + 4)) = pname;
 186
 187    (void) _XReply(dpy, reply, 0, False);
 188 }
 189
 190
 191 void
 192 __indirect_glGetVertexAttribivARB(GLuint index, GLenum pname, GLint * params)
 193 {
 194    __GLXcontext *const gc = __glXGetCurrentContext();
 195    Display *const dpy = gc->currentDpy;
 196    __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
 197    xGLXSingleReply reply;
 198
 199
 200    get_vertex_attrib(gc, 1303, index, pname, (xReply *) & reply);
 201
 202    if (reply.size != 0) {
 203       GLintptr data;
 204
 205
 206       if (get_attrib_array_data(state, index, pname, &data)) {
 207          *params = (GLint) data;
 208       }
 209       else {
 210          if (reply.size == 1) {
 211             *params = (GLint) reply.pad3;
 212          }
 213          else {
 214             _XRead(dpy, (void *) params, 4 * reply.size);
 215          }
 216       }
 217    }
 218
 219    UnlockDisplay(dpy);
 220    SyncHandle();
 221 }
 222
 223
 224 void
 225 __indirect_glGetVertexAttribfvARB(GLuint index, GLenum pname,
 226                                   GLfloat * params)
 227 {
 228    __GLXcontext *const gc = __glXGetCurrentContext();
 229    Display *const dpy = gc->currentDpy;
 230    __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
 231    xGLXSingleReply reply;
 232
 233
 234    get_vertex_attrib(gc, 1302, index, pname, (xReply *) & reply);
 235
 236    if (reply.size != 0) {
 237       GLintptr data;
 238
 239
 240       if (get_attrib_array_data(state, index, pname, &data)) {
 241          *params = (GLfloat) data;
 242       }
 243       else {
 244          if (reply.size == 1) {
 245             (void) memcpy(params, &reply.pad3, sizeof(GLfloat));
 246          }
 247          else {
 248             _XRead(dpy, (void *) params, 4 * reply.size);
 249          }
 250       }
 251    }
 252
 253    UnlockDisplay(dpy);
 254    SyncHandle();
 255 }
 256
 257
 258 void
 259 __indirect_glGetVertexAttribdvARB(GLuint index, GLenum pname,
 260                                   GLdouble * params)
 261 {
 262    __GLXcontext *const gc = __glXGetCurrentContext();
 263    Display *const dpy = gc->currentDpy;
 264    __GLXattribute *state = (__GLXattribute *) (gc->client_state_private);
 265    xGLXSingleReply reply;
 266
 267
 268    get_vertex_attrib(gc, 1301, index, pname, (xReply *) & reply);
 269
 270    if (reply.size != 0) {
 271       GLintptr data;
 272
 273
 274       if (get_attrib_array_data(state, index, pname, &data)) {
 275          *params = (GLdouble) data;
 276       }
 277       else {
 278          if (reply.size == 1) {
 279             (void) memcpy(params, &reply.pad3, sizeof(GLdouble));
 280          }
 281          else {
 282             _XRead(dpy, (void *) params, 8 * reply.size);
 283          }
 284       }
 285    }
 286
 287    UnlockDisplay(dpy);
 288    SyncHandle();
 289 }