src/glx/indirect_texture_compression.c

   1 /*
   2  * (C) Copyright IBM Corporation 2004
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the 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  * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /**
  26  * \file glx_texture_compression.c
  27  * Contains the routines required to implement GLX protocol for
  28  * ARB_texture_compression and related extensions.
  29  *
  30  * \sa http://oss.sgi.com/projects/ogl-sample/registry/ARB/texture_compression.txt
  31  *
  32  * \author Ian Romanick <idr@us.ibm.com>
  33  */
  34
  35 #include "packrender.h"
  36 #include "packsingle.h"
  37 #include "indirect.h"
  38
  39 #include <assert.h>
  40
  41
  42 void
  43 __indirect_glGetCompressedTexImageARB(GLenum target, GLint level,
  44                                       GLvoid * img)
  45 {
  46    __GLX_SINGLE_DECLARE_VARIABLES();
  47    xGLXGetTexImageReply reply;
  48    size_t image_bytes;
  49
  50    __GLX_SINGLE_LOAD_VARIABLES();
  51    __GLX_SINGLE_BEGIN(X_GLsop_GetCompressedTexImage, 8);
  52    __GLX_SINGLE_PUT_LONG(0, target);
  53    __GLX_SINGLE_PUT_LONG(4, level);
  54    __GLX_SINGLE_READ_XREPLY();
  55
  56    image_bytes = reply.width;
  57    assert(image_bytes <= ((4 * reply.length) - 0));
  58    assert(image_bytes >= ((4 * reply.length) - 3));
  59
  60    if (image_bytes != 0) {
  61       _XRead(dpy, (char *) img, image_bytes);
  62       if (image_bytes < (4 * reply.length)) {
  63          _XEatData(dpy, (4 * reply.length) - image_bytes);
  64       }
  65    }
  66
  67    __GLX_SINGLE_END();
  68 }
  69
  70
  71 /**
  72  * Internal function used for \c glCompressedTexImage1D and
  73  * \c glCompressedTexImage2D.
  74  */
  75 static void
  76 CompressedTexImage1D2D(GLenum target, GLint level,
  77                        GLenum internal_format,
  78                        GLsizei width, GLsizei height,
  79                        GLint border, GLsizei image_size,
  80                        const GLvoid * data, CARD32 rop)
  81 {
  82    __GLX_DECLARE_VARIABLES();
  83
  84    __GLX_LOAD_VARIABLES();
  85    if (gc->currentDpy == NULL) {
  86       return;
  87    }
  88
  89    if ((target == GL_PROXY_TEXTURE_1D)
  90        || (target == GL_PROXY_TEXTURE_2D)
  91        || (target == GL_PROXY_TEXTURE_CUBE_MAP)) {
  92       compsize = 0;
  93    }
  94    else {
  95       compsize = image_size;
  96    }
  97
  98    cmdlen = __GLX_PAD(__GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE + compsize);
  99    if (cmdlen <= gc->maxSmallRenderCommandSize) {
 100       __GLX_BEGIN_VARIABLE(rop, cmdlen);
 101       __GLX_PUT_LONG(4, target);
 102       __GLX_PUT_LONG(8, level);
 103       __GLX_PUT_LONG(12, internal_format);
 104       __GLX_PUT_LONG(16, width);
 105       __GLX_PUT_LONG(20, height);
 106       __GLX_PUT_LONG(24, border);
 107       __GLX_PUT_LONG(28, image_size);
 108       if (compsize != 0) {
 109          __GLX_PUT_CHAR_ARRAY(__GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE,
 110                               data, image_size);
 111       }
 112       __GLX_END(cmdlen);
 113    }
 114    else {
 115       assert(compsize != 0);
 116
 117       __GLX_BEGIN_VARIABLE_LARGE(rop, cmdlen + 4);
 118       __GLX_PUT_LONG(8, target);
 119       __GLX_PUT_LONG(12, level);
 120       __GLX_PUT_LONG(16, internal_format);
 121       __GLX_PUT_LONG(20, width);
 122       __GLX_PUT_LONG(24, height);
 123       __GLX_PUT_LONG(28, border);
 124       __GLX_PUT_LONG(32, image_size);
 125       __glXSendLargeCommand(gc, gc->pc,
 126                             __GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE + 4,
 127                             data, image_size);
 128    }
 129 }
 130
 131
 132 /**
 133  * Internal function used for \c glCompressedTexSubImage1D and
 134  * \c glCompressedTexSubImage2D.
 135  */
 136 static void
 137 CompressedTexSubImage1D2D(GLenum target, GLint level,
 138                           GLsizei xoffset, GLsizei yoffset,
 139                           GLsizei width, GLsizei height,
 140                           GLenum format, GLsizei image_size,
 141                           const GLvoid * data, CARD32 rop)
 142 {
 143    __GLX_DECLARE_VARIABLES();
 144
 145    __GLX_LOAD_VARIABLES();
 146    if (gc->currentDpy == NULL) {
 147       return;
 148    }
 149
 150    if (target == GL_PROXY_TEXTURE_3D) {
 151       compsize = 0;
 152    }
 153    else {
 154       compsize = image_size;
 155    }
 156
 157    cmdlen = __GLX_PAD(__GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE + compsize);
 158    if (cmdlen <= gc->maxSmallRenderCommandSize) {
 159       __GLX_BEGIN_VARIABLE(rop, cmdlen);
 160       __GLX_PUT_LONG(4, target);
 161       __GLX_PUT_LONG(8, level);
 162       __GLX_PUT_LONG(12, xoffset);
 163       __GLX_PUT_LONG(16, yoffset);
 164       __GLX_PUT_LONG(20, width);
 165       __GLX_PUT_LONG(24, height);
 166       __GLX_PUT_LONG(28, format);
 167       __GLX_PUT_LONG(32, image_size);
 168       if (compsize != 0) {
 169          __GLX_PUT_CHAR_ARRAY(__GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE,
 170                               data, image_size);
 171       }
 172       __GLX_END(cmdlen);
 173    }
 174    else {
 175       assert(compsize != 0);
 176
 177       __GLX_BEGIN_VARIABLE_LARGE(rop, cmdlen + 4);
 178       __GLX_PUT_LONG(8, target);
 179       __GLX_PUT_LONG(12, level);
 180       __GLX_PUT_LONG(16, xoffset);
 181       __GLX_PUT_LONG(20, yoffset);
 182       __GLX_PUT_LONG(24, width);
 183       __GLX_PUT_LONG(28, height);
 184       __GLX_PUT_LONG(32, format);
 185       __GLX_PUT_LONG(36, image_size);
 186       __glXSendLargeCommand(gc, gc->pc,
 187                             __GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE + 4,
 188                             data, image_size);
 189    }
 190 }
 191
 192
 193 void
 194 __indirect_glCompressedTexImage1DARB(GLenum target, GLint level,
 195                                      GLenum internal_format, GLsizei width,
 196                                      GLint border, GLsizei image_size,
 197                                      const GLvoid * data)
 198 {
 199    CompressedTexImage1D2D(target, level, internal_format, width, 0,
 200                           border, image_size, data,
 201                           X_GLrop_CompressedTexImage1D);
 202 }
 203
 204
 205 void
 206 __indirect_glCompressedTexImage2DARB(GLenum target, GLint level,
 207                                      GLenum internal_format,
 208                                      GLsizei width, GLsizei height,
 209                                      GLint border, GLsizei image_size,
 210                                      const GLvoid * data)
 211 {
 212    CompressedTexImage1D2D(target, level, internal_format, width, height,
 213                           border, image_size, data,
 214                           X_GLrop_CompressedTexImage2D);
 215 }
 216
 217
 218 void
 219 __indirect_glCompressedTexImage3DARB(GLenum target, GLint level,
 220                                      GLenum internal_format,
 221                                      GLsizei width, GLsizei height,
 222                                      GLsizei depth, GLint border,
 223                                      GLsizei image_size, const GLvoid * data)
 224 {
 225    __GLX_DECLARE_VARIABLES();
 226
 227    __GLX_LOAD_VARIABLES();
 228    if (gc->currentDpy == NULL) {
 229       return;
 230    }
 231
 232    cmdlen = __GLX_PAD(__GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE + image_size);
 233    if (cmdlen <= gc->maxSmallRenderCommandSize) {
 234       __GLX_BEGIN_VARIABLE(X_GLrop_CompressedTexImage3D, cmdlen);
 235       __GLX_PUT_LONG(4, target);
 236       __GLX_PUT_LONG(8, level);
 237       __GLX_PUT_LONG(12, internal_format);
 238       __GLX_PUT_LONG(16, width);
 239       __GLX_PUT_LONG(20, height);
 240       __GLX_PUT_LONG(24, depth);
 241       __GLX_PUT_LONG(28, border);
 242       __GLX_PUT_LONG(32, image_size);
 243       if (image_size != 0) {
 244          __GLX_PUT_CHAR_ARRAY(__GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE,
 245                               data, image_size);
 246       }
 247       __GLX_END(cmdlen);
 248    }
 249    else {
 250       __GLX_BEGIN_VARIABLE_LARGE(X_GLrop_CompressedTexImage3D, cmdlen + 4);
 251       __GLX_PUT_LONG(8, target);
 252       __GLX_PUT_LONG(12, level);
 253       __GLX_PUT_LONG(16, internal_format);
 254       __GLX_PUT_LONG(20, width);
 255       __GLX_PUT_LONG(24, height);
 256       __GLX_PUT_LONG(28, depth);
 257       __GLX_PUT_LONG(32, border);
 258       __GLX_PUT_LONG(36, image_size);
 259       __glXSendLargeCommand(gc, gc->pc,
 260                             __GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE + 4,
 261                             data, image_size);
 262    }
 263 }
 264
 265
 266 void
 267 __indirect_glCompressedTexSubImage1DARB(GLenum target, GLint level,
 268                                         GLint xoffset,
 269                                         GLsizei width,
 270                                         GLenum format, GLsizei image_size,
 271                                         const GLvoid * data)
 272 {
 273    CompressedTexSubImage1D2D(target, level, xoffset, 0, width, 0,
 274                              format, image_size, data,
 275                              X_GLrop_CompressedTexSubImage1D);
 276 }
 277
 278
 279 void
 280 __indirect_glCompressedTexSubImage2DARB(GLenum target, GLint level,
 281                                         GLint xoffset, GLint yoffset,
 282                                         GLsizei width, GLsizei height,
 283                                         GLenum format, GLsizei image_size,
 284                                         const GLvoid * data)
 285 {
 286    CompressedTexSubImage1D2D(target, level, xoffset, yoffset, width, height,
 287                              format, image_size, data,
 288                              X_GLrop_CompressedTexSubImage2D);
 289 }
 290
 291
 292 void
 293 __indirect_glCompressedTexSubImage3DARB(GLenum target, GLint level,
 294                                         GLint xoffset, GLint yoffset,
 295                                         GLint zoffset, GLsizei width,
 296                                         GLsizei height, GLsizei depth,
 297                                         GLenum format, GLsizei image_size,
 298                                         const GLvoid * data)
 299 {
 300    __GLX_DECLARE_VARIABLES();
 301
 302    __GLX_LOAD_VARIABLES();
 303    if (gc->currentDpy == NULL) {
 304       return;
 305    }
 306
 307    cmdlen = __GLX_PAD(__GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE
 308                       + image_size);
 309    if (cmdlen <= gc->maxSmallRenderCommandSize) {
 310       __GLX_BEGIN_VARIABLE(X_GLrop_CompressedTexSubImage3D, cmdlen);
 311       __GLX_PUT_LONG(4, target);
 312       __GLX_PUT_LONG(8, level);
 313       __GLX_PUT_LONG(12, xoffset);
 314       __GLX_PUT_LONG(16, yoffset);
 315       __GLX_PUT_LONG(20, zoffset);
 316       __GLX_PUT_LONG(24, width);
 317       __GLX_PUT_LONG(28, height);
 318       __GLX_PUT_LONG(32, depth);
 319       __GLX_PUT_LONG(36, format);
 320       __GLX_PUT_LONG(40, image_size);
 321       if (image_size != 0) {
 322          __GLX_PUT_CHAR_ARRAY(__GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE,
 323                               data, image_size);
 324       }
 325       __GLX_END(cmdlen);
 326    }
 327    else {
 328       __GLX_BEGIN_VARIABLE_LARGE(X_GLrop_CompressedTexSubImage3D, cmdlen + 4);
 329       __GLX_PUT_LONG(8, target);
 330       __GLX_PUT_LONG(12, level);
 331       __GLX_PUT_LONG(16, xoffset);
 332       __GLX_PUT_LONG(20, yoffset);
 333       __GLX_PUT_LONG(24, zoffset);
 334       __GLX_PUT_LONG(28, width);
 335       __GLX_PUT_LONG(32, height);
 336       __GLX_PUT_LONG(36, depth);
 337       __GLX_PUT_LONG(40, format);
 338       __GLX_PUT_LONG(44, image_size);
 339       __glXSendLargeCommand(gc, gc->pc,
 340                             __GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE + 4,
 341                             data, image_size);
 342    }
 343 }