src/gallium/state_trackers/dri/common/dri_screen.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009, VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27 /*
  28  * Author: Keith Whitwell <keithw@vmware.com>
  29  * Author: Jakob Bornecrantz <wallbraker@gmail.com>
  30  */
  31
  32 #include "utils.h"
  33 #ifndef __NOT_HAVE_DRM_H
  34 #include "vblank.h"
  35 #endif
  36 #include "xmlpool.h"
  37
  38 #include "dri_screen.h"
  39 #include "dri_context.h"
  40 #include "dri_drawable.h"
  41 #include "dri1_helper.h"
  42 #ifndef __NOT_HAVE_DRM_H
  43 #include "dri2.h"
  44 #else
  45 #include "drisw.h"
  46 #endif
  47
  48 #include "util/u_inlines.h"
  49 #include "pipe/p_screen.h"
  50 #include "pipe/p_format.h"
  51 #include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
  52
  53 #include "util/u_debug.h"
  54
  55 PUBLIC const char __driConfigOptions[] =
  56    DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
  57    DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
  58    DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  59    DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
  60 /* DRI_CONF_FORCE_S3TC_ENABLE(false) */
  61    DRI_CONF_ALLOW_LARGE_TEXTURES(1)
  62    DRI_CONF_SECTION_END DRI_CONF_END;
  63
  64 static const uint __driNConfigOptions = 3;
  65
  66 static const __DRIconfig **
  67 dri_fill_in_modes(struct dri_screen *screen,
  68                   unsigned pixel_bits)
  69 {
  70    __DRIconfig **configs = NULL;
  71    __DRIconfig **configs_r5g6b5 = NULL;
  72    __DRIconfig **configs_a8r8g8b8 = NULL;
  73    __DRIconfig **configs_x8r8g8b8 = NULL;
  74    uint8_t depth_bits_array[5];
  75    uint8_t stencil_bits_array[5];
  76    uint8_t msaa_samples_array[5];
  77    unsigned depth_buffer_factor;
  78    unsigned back_buffer_factor;
  79    unsigned msaa_samples_factor;
  80    unsigned i;
  81    struct pipe_screen *p_screen = screen->base.screen;
  82    boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
  83    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
  84
  85    static const GLenum back_buffer_modes[] = {
  86       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
  87    };
  88
  89    depth_bits_array[0] = 0;
  90    stencil_bits_array[0] = 0;
  91    depth_buffer_factor = 1;
  92
  93    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
  94                                             PIPE_TEXTURE_2D, 0,
  95                                             PIPE_BIND_DEPTH_STENCIL, 0);
  96    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
  97                                             PIPE_TEXTURE_2D, 0,
  98                                             PIPE_BIND_DEPTH_STENCIL, 0);
  99    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 100                                             PIPE_TEXTURE_2D, 0,
 101                                             PIPE_BIND_DEPTH_STENCIL, 0);
 102    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
 103                                             PIPE_TEXTURE_2D, 0,
 104                                             PIPE_BIND_DEPTH_STENCIL, 0);
 105    pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
 106                                                PIPE_TEXTURE_2D, 0,
 107                                                PIPE_BIND_RENDER_TARGET, 0);
 108    pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
 109                                                PIPE_TEXTURE_2D, 0,
 110                                                PIPE_BIND_RENDER_TARGET, 0);
 111    pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 112                                              PIPE_TEXTURE_2D, 0,
 113                                              PIPE_BIND_RENDER_TARGET, 0);
 114
 115    /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
 116    if (dri_with_format(screen->sPriv)) {
 117       pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 118                                              PIPE_TEXTURE_2D, 0,
 119                                              PIPE_BIND_DEPTH_STENCIL, 0);
 120       pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 121                                              PIPE_TEXTURE_2D, 0,
 122                                              PIPE_BIND_DEPTH_STENCIL, 0);
 123    } else {
 124       pf_z16 = FALSE;
 125       pf_z32 = FALSE;
 126    }
 127
 128    if (pf_z16) {
 129       depth_bits_array[depth_buffer_factor] = 16;
 130       stencil_bits_array[depth_buffer_factor++] = 0;
 131    }
 132    if (pf_x8z24 || pf_z24x8) {
 133       depth_bits_array[depth_buffer_factor] = 24;
 134       stencil_bits_array[depth_buffer_factor++] = 0;
 135       screen->d_depth_bits_last = pf_x8z24;
 136    }
 137    if (pf_s8z24 || pf_z24s8) {
 138       depth_bits_array[depth_buffer_factor] = 24;
 139       stencil_bits_array[depth_buffer_factor++] = 8;
 140       screen->sd_depth_bits_last = pf_s8z24;
 141    }
 142    if (pf_z32) {
 143       depth_bits_array[depth_buffer_factor] = 32;
 144       stencil_bits_array[depth_buffer_factor++] = 0;
 145    }
 146
 147    msaa_samples_array[0] = 0;
 148    back_buffer_factor = 3;
 149
 150    /* also test color for msaa 2/4/6/8 - just assume it'll work for all depth buffers */
 151    if (pf_r5g6b5) {
 152       msaa_samples_factor = 1;
 153       for (i = 1; i < 5; i++) {
 154          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 155                                                    PIPE_TEXTURE_2D, i*2,
 156                                                    PIPE_BIND_RENDER_TARGET, 0)) {
 157             msaa_samples_array[msaa_samples_factor] = i * 2;
 158             msaa_samples_factor++;
 159          }
 160       }
 161
 162       configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
 163                                         depth_bits_array, stencil_bits_array,
 164                                         depth_buffer_factor, back_buffer_modes,
 165                                         back_buffer_factor,
 166                                         msaa_samples_array, msaa_samples_factor,
 167                                         GL_TRUE);
 168    }
 169
 170    if (pf_a8r8g8b8) {
 171       msaa_samples_factor = 1;
 172       for (i = 1; i < 5; i++) {
 173          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
 174                                                    PIPE_TEXTURE_2D, i*2,
 175                                                    PIPE_BIND_RENDER_TARGET, 0)) {
 176             msaa_samples_array[msaa_samples_factor] = i * 2;
 177             msaa_samples_factor++;
 178          }
 179       }
 180
 181       configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
 182                                           depth_bits_array,
 183                                           stencil_bits_array,
 184                                           depth_buffer_factor,
 185                                           back_buffer_modes,
 186                                           back_buffer_factor,
 187                                           msaa_samples_array,
 188                                           msaa_samples_factor,
 189                                           GL_TRUE);
 190    }
 191
 192    if (pf_x8r8g8b8) {
 193       msaa_samples_factor = 1;
 194       for (i = 1; i < 5; i++) {
 195          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
 196                                                    PIPE_TEXTURE_2D, i*2,
 197                                                    PIPE_BIND_RENDER_TARGET, 0)) {
 198             msaa_samples_array[msaa_samples_factor] = i * 2;
 199             msaa_samples_factor++;
 200          }
 201       }
 202
 203       configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
 204                                           depth_bits_array,
 205                                           stencil_bits_array,
 206                                           depth_buffer_factor,
 207                                           back_buffer_modes,
 208                                           back_buffer_factor,
 209                                           msaa_samples_array,
 210                                           msaa_samples_factor,
 211                                           GL_TRUE);
 212    }
 213
 214    if (pixel_bits == 16) {
 215       configs = configs_r5g6b5;
 216       if (configs_a8r8g8b8)
 217          configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
 218       if (configs_x8r8g8b8)
 219          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 220    } else {
 221       configs = configs_a8r8g8b8;
 222       if (configs_x8r8g8b8)
 223          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 224       if (configs_r5g6b5)
 225          configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
 226    }
 227
 228    if (configs == NULL) {
 229       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 230       return NULL;
 231    }
 232
 233    return (const __DRIconfig **)configs;
 234 }
 235
 236 /**
 237  * Roughly the converse of dri_fill_in_modes.
 238  */
 239 void
 240 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 241                    const __GLcontextModes *mode)
 242 {
 243    memset(stvis, 0, sizeof(*stvis));
 244
 245    stvis->samples = mode->samples;
 246    stvis->render_buffer = ST_ATTACHMENT_INVALID;
 247
 248    if (mode->redBits == 8) {
 249       if (mode->alphaBits == 8)
 250          stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
 251       else
 252          stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
 253    } else {
 254       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 255    }
 256
 257    switch (mode->depthBits) {
 258    default:
 259    case 0:
 260       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 261       break;
 262    case 16:
 263       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 264       break;
 265    case 24:
 266       if (mode->stencilBits == 0) {
 267          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 268                                           PIPE_FORMAT_Z24X8_UNORM:
 269                                           PIPE_FORMAT_X8Z24_UNORM;
 270       } else {
 271          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 272                                           PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 273                                           PIPE_FORMAT_S8_USCALED_Z24_UNORM;
 274       }
 275       break;
 276    case 32:
 277       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 278       break;
 279    }
 280
 281    stvis->accum_format = (mode->haveAccumBuffer) ?
 282       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 283
 284    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 285    if (mode->doubleBufferMode)
 286       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 287    if (mode->stereoMode) {
 288       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 289       if (mode->doubleBufferMode)
 290          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 291    }
 292
 293    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 294       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 295    /* let the state tracker allocate the accum buffer */
 296 }
 297
 298 static boolean
 299 dri_get_egl_image(struct st_manager *smapi,
 300                   struct st_context_iface *stctxi,
 301                   void *egl_image,
 302                   struct st_egl_image *stimg)
 303 {
 304    struct dri_context *ctx =
 305       (struct dri_context *)stctxi->st_manager_private;
 306    struct dri_screen *screen = dri_screen(ctx->sPriv);
 307    __DRIimage *img = NULL;
 308
 309    if (screen->lookup_egl_image) {
 310       img = screen->lookup_egl_image(ctx, egl_image);
 311    }
 312
 313    if (!img)
 314       return FALSE;
 315
 316    stimg->texture = NULL;
 317    pipe_resource_reference(&stimg->texture, img->texture);
 318    stimg->face = img->face;
 319    stimg->level = img->level;
 320    stimg->zslice = img->zslice;
 321
 322    return TRUE;
 323 }
 324
 325 static int
 326 dri_get_param(struct st_manager *smapi,
 327               enum st_manager_param param)
 328 {
 329    struct dri_screen *screen = (struct dri_screen *)smapi;
 330
 331    switch(param) {
 332    case ST_MANAGER_BROKEN_INVALIDATE:
 333       return screen->broken_invalidate;
 334    default:
 335       return 0;
 336    }
 337 }
 338
 339 static void
 340 dri_destroy_option_cache(struct dri_screen * screen)
 341 {
 342    int i;
 343
 344    if (screen->optionCache.info) {
 345       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 346          FREE(screen->optionCache.info[i].name);
 347          FREE(screen->optionCache.info[i].ranges);
 348       }
 349       FREE(screen->optionCache.info);
 350    }
 351
 352    FREE(screen->optionCache.values);
 353 }
 354
 355 void
 356 dri_destroy_screen_helper(struct dri_screen * screen)
 357 {
 358    dri1_destroy_pipe_context(screen);
 359
 360    if (screen->st_api && screen->st_api->destroy)
 361       screen->st_api->destroy(screen->st_api);
 362
 363    if (screen->base.screen)
 364       screen->base.screen->destroy(screen->base.screen);
 365
 366    dri_destroy_option_cache(screen);
 367 }
 368
 369 static void
 370 dri_destroy_screen(__DRIscreen * sPriv)
 371 {
 372    struct dri_screen *screen = dri_screen(sPriv);
 373
 374    dri_destroy_screen_helper(screen);
 375
 376    FREE(screen);
 377    sPriv->private = NULL;
 378    sPriv->extensions = NULL;
 379 }
 380
 381 const __DRIconfig **
 382 dri_init_screen_helper(struct dri_screen *screen,
 383                        struct pipe_screen *pscreen,
 384                        unsigned pixel_bits)
 385 {
 386    screen->base.screen = pscreen;
 387    if (!screen->base.screen) {
 388       debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
 389       return NULL;
 390    }
 391
 392    screen->base.get_egl_image = dri_get_egl_image;
 393    screen->base.get_param = dri_get_param;
 394    screen->st_api = st_gl_api_create();
 395
 396    if (!screen->st_api)
 397       return NULL;
 398
 399    driParseOptionInfo(&screen->optionCache,
 400                       __driConfigOptions, __driNConfigOptions);
 401
 402    return dri_fill_in_modes(screen, pixel_bits);
 403 }
 404
 405 /**
 406  * DRI driver virtual function table.
 407  *
 408  * DRI versions differ in their implementation of init_screen and swap_buffers.
 409  */
 410 const struct __DriverAPIRec driDriverAPI = {
 411    .DestroyScreen = dri_destroy_screen,
 412    .CreateContext = dri_create_context,
 413    .DestroyContext = dri_destroy_context,
 414    .CreateBuffer = dri_create_buffer,
 415    .DestroyBuffer = dri_destroy_buffer,
 416    .MakeCurrent = dri_make_current,
 417    .UnbindContext = dri_unbind_context,
 418
 419 #ifndef __NOT_HAVE_DRM_H
 420
 421    .GetSwapInfo = NULL,
 422    .GetDrawableMSC = NULL,
 423    .WaitForMSC = NULL,
 424    .InitScreen2 = dri2_init_screen,
 425
 426    .InitScreen = NULL,
 427    .SwapBuffers = NULL,
 428    .CopySubBuffer = NULL,
 429
 430 #else
 431
 432    .InitScreen = drisw_init_screen,
 433    .SwapBuffers = drisw_swap_buffers,
 434
 435 #endif
 436
 437 };
 438
 439 /* vim: set sw=3 ts=8 sts=3 expandtab: */