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 #include "xmlpool.h"
  34
  35 #include "dri_screen.h"
  36
  37 #include "util/u_inlines.h"
  38 #include "pipe/p_screen.h"
  39 #include "pipe/p_format.h"
  40 #include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
  41
  42 #include "util/u_debug.h"
  43
  44 PUBLIC const char __driConfigOptions[] =
  45    DRI_CONF_BEGIN
  46       DRI_CONF_SECTION_PERFORMANCE
  47          DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
  48          DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  49       DRI_CONF_SECTION_END
  50
  51       DRI_CONF_SECTION_QUALITY
  52 /*       DRI_CONF_FORCE_S3TC_ENABLE(false) */
  53          DRI_CONF_ALLOW_LARGE_TEXTURES(1)
  54          DRI_CONF_PP_CELSHADE(0)
  55          DRI_CONF_PP_NORED(0)
  56          DRI_CONF_PP_NOGREEN(0)
  57          DRI_CONF_PP_NOBLUE(0)
  58          DRI_CONF_PP_JIMENEZMLAA(0, 0, 32)
  59          DRI_CONF_PP_JIMENEZMLAA_COLOR(0, 0, 32)
  60       DRI_CONF_SECTION_END
  61    DRI_CONF_END;
  62
  63 static const uint __driNConfigOptions = 9;
  64
  65 static const __DRIconfig **
  66 dri_fill_in_modes(struct dri_screen *screen,
  67                   unsigned pixel_bits)
  68 {
  69    __DRIconfig **configs = NULL;
  70    __DRIconfig **configs_r5g6b5 = NULL;
  71    __DRIconfig **configs_a8r8g8b8 = NULL;
  72    __DRIconfig **configs_x8r8g8b8 = NULL;
  73    uint8_t depth_bits_array[5];
  74    uint8_t stencil_bits_array[5];
  75    uint8_t msaa_samples_array[5];
  76    unsigned depth_buffer_factor;
  77    unsigned back_buffer_factor;
  78    unsigned msaa_samples_factor;
  79    unsigned i;
  80    struct pipe_screen *p_screen = screen->base.screen;
  81    boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
  82    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
  83
  84    static const GLenum back_buffer_modes[] = {
  85       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
  86    };
  87
  88    depth_bits_array[0] = 0;
  89    stencil_bits_array[0] = 0;
  90    depth_buffer_factor = 1;
  91
  92    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
  93                                             PIPE_TEXTURE_2D, 0,
  94                                             PIPE_BIND_DEPTH_STENCIL);
  95    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
  96                                             PIPE_TEXTURE_2D, 0,
  97                                             PIPE_BIND_DEPTH_STENCIL);
  98    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
  99                                             PIPE_TEXTURE_2D, 0,
 100                                             PIPE_BIND_DEPTH_STENCIL);
 101    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
 102                                             PIPE_TEXTURE_2D, 0,
 103                                             PIPE_BIND_DEPTH_STENCIL);
 104    pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
 105                                                PIPE_TEXTURE_2D, 0,
 106                                                PIPE_BIND_RENDER_TARGET);
 107    pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
 108                                                PIPE_TEXTURE_2D, 0,
 109                                                PIPE_BIND_RENDER_TARGET);
 110    pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 111                                              PIPE_TEXTURE_2D, 0,
 112                                              PIPE_BIND_RENDER_TARGET);
 113
 114    /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
 115    if (dri_with_format(screen->sPriv)) {
 116       pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 117                                              PIPE_TEXTURE_2D, 0,
 118                                              PIPE_BIND_DEPTH_STENCIL);
 119       pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 120                                              PIPE_TEXTURE_2D, 0,
 121                                              PIPE_BIND_DEPTH_STENCIL);
 122    } else {
 123       pf_z16 = FALSE;
 124       pf_z32 = FALSE;
 125    }
 126
 127    if (pf_z16) {
 128       depth_bits_array[depth_buffer_factor] = 16;
 129       stencil_bits_array[depth_buffer_factor++] = 0;
 130    }
 131    if (pf_x8z24 || pf_z24x8) {
 132       depth_bits_array[depth_buffer_factor] = 24;
 133       stencil_bits_array[depth_buffer_factor++] = 0;
 134       screen->d_depth_bits_last = pf_x8z24;
 135    }
 136    if (pf_s8z24 || pf_z24s8) {
 137       depth_bits_array[depth_buffer_factor] = 24;
 138       stencil_bits_array[depth_buffer_factor++] = 8;
 139       screen->sd_depth_bits_last = pf_s8z24;
 140    }
 141    if (pf_z32) {
 142       depth_bits_array[depth_buffer_factor] = 32;
 143       stencil_bits_array[depth_buffer_factor++] = 0;
 144    }
 145
 146    msaa_samples_array[0] = 0;
 147    back_buffer_factor = 3;
 148
 149    /* also test color for msaa 2/4/6/8 - just assume it'll work for all depth buffers */
 150    if (pf_r5g6b5) {
 151       msaa_samples_factor = 1;
 152       for (i = 1; i < 5; i++) {
 153          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 154                                                    PIPE_TEXTURE_2D, i*2,
 155                                                    PIPE_BIND_RENDER_TARGET)) {
 156             msaa_samples_array[msaa_samples_factor] = i * 2;
 157             msaa_samples_factor++;
 158          }
 159       }
 160
 161       configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
 162                                         depth_bits_array, stencil_bits_array,
 163                                         depth_buffer_factor, back_buffer_modes,
 164                                         back_buffer_factor,
 165                                         msaa_samples_array, msaa_samples_factor,
 166                                         GL_TRUE);
 167    }
 168
 169    if (pf_a8r8g8b8) {
 170       msaa_samples_factor = 1;
 171       for (i = 1; i < 5; i++) {
 172          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
 173                                                    PIPE_TEXTURE_2D, i*2,
 174                                                    PIPE_BIND_RENDER_TARGET)) {
 175             msaa_samples_array[msaa_samples_factor] = i * 2;
 176             msaa_samples_factor++;
 177          }
 178       }
 179
 180       configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
 181                                           depth_bits_array,
 182                                           stencil_bits_array,
 183                                           depth_buffer_factor,
 184                                           back_buffer_modes,
 185                                           back_buffer_factor,
 186                                           msaa_samples_array,
 187                                           msaa_samples_factor,
 188                                           GL_TRUE);
 189    }
 190
 191    if (pf_x8r8g8b8) {
 192       msaa_samples_factor = 1;
 193       for (i = 1; i < 5; i++) {
 194          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
 195                                                    PIPE_TEXTURE_2D, i*2,
 196                                                    PIPE_BIND_RENDER_TARGET)) {
 197             msaa_samples_array[msaa_samples_factor] = i * 2;
 198             msaa_samples_factor++;
 199          }
 200       }
 201
 202       configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
 203                                           depth_bits_array,
 204                                           stencil_bits_array,
 205                                           depth_buffer_factor,
 206                                           back_buffer_modes,
 207                                           back_buffer_factor,
 208                                           msaa_samples_array,
 209                                           msaa_samples_factor,
 210                                           GL_TRUE);
 211    }
 212
 213    if (pixel_bits == 16) {
 214       configs = configs_r5g6b5;
 215       if (configs_a8r8g8b8)
 216          configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
 217       if (configs_x8r8g8b8)
 218          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 219    } else {
 220       configs = configs_a8r8g8b8;
 221       if (configs_x8r8g8b8)
 222          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 223       if (configs_r5g6b5)
 224          configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
 225    }
 226
 227    if (configs == NULL) {
 228       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 229       return NULL;
 230    }
 231
 232    return (const __DRIconfig **)configs;
 233 }
 234
 235 /**
 236  * Roughly the converse of dri_fill_in_modes.
 237  */
 238 void
 239 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 240                    const struct gl_config *mode)
 241 {
 242    memset(stvis, 0, sizeof(*stvis));
 243
 244    if (!mode)
 245       return;
 246
 247    stvis->samples = mode->samples;
 248
 249    if (mode->redBits == 8) {
 250       if (mode->alphaBits == 8)
 251          stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
 252       else
 253          stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
 254    } else {
 255       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 256    }
 257
 258    switch (mode->depthBits) {
 259    default:
 260    case 0:
 261       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 262       break;
 263    case 16:
 264       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 265       break;
 266    case 24:
 267       if (mode->stencilBits == 0) {
 268          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 269                                           PIPE_FORMAT_Z24X8_UNORM:
 270                                           PIPE_FORMAT_X8Z24_UNORM;
 271       } else {
 272          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 273                                           PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 274                                           PIPE_FORMAT_S8_USCALED_Z24_UNORM;
 275       }
 276       break;
 277    case 32:
 278       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 279       break;
 280    }
 281
 282    stvis->accum_format = (mode->haveAccumBuffer) ?
 283       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 284
 285    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 286    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 287    if (mode->doubleBufferMode) {
 288       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 289       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 290    }
 291    if (mode->stereoMode) {
 292       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 293       if (mode->doubleBufferMode)
 294          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 295    }
 296
 297    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 298       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 299    /* let the state tracker allocate the accum buffer */
 300 }
 301
 302 static boolean
 303 dri_get_egl_image(struct st_manager *smapi,
 304                   void *egl_image,
 305                   struct st_egl_image *stimg)
 306 {
 307    struct dri_screen *screen = (struct dri_screen *)smapi;
 308    __DRIimage *img = NULL;
 309
 310    if (screen->lookup_egl_image) {
 311       img = screen->lookup_egl_image(screen, egl_image);
 312    }
 313
 314    if (!img)
 315       return FALSE;
 316
 317    stimg->texture = NULL;
 318    pipe_resource_reference(&stimg->texture, img->texture);
 319    stimg->level = img->level;
 320    stimg->layer = img->layer;
 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    if (screen->st_api && screen->st_api->destroy)
 359       screen->st_api->destroy(screen->st_api);
 360
 361    if (screen->base.screen)
 362       screen->base.screen->destroy(screen->base.screen);
 363
 364    dri_destroy_option_cache(screen);
 365 }
 366
 367 void
 368 dri_destroy_screen(__DRIscreen * sPriv)
 369 {
 370    struct dri_screen *screen = dri_screen(sPriv);
 371
 372    dri_destroy_screen_helper(screen);
 373
 374    FREE(screen);
 375    sPriv->private = NULL;
 376    sPriv->extensions = NULL;
 377 }
 378
 379 const __DRIconfig **
 380 dri_init_screen_helper(struct dri_screen *screen,
 381                        struct pipe_screen *pscreen,
 382                        unsigned pixel_bits)
 383 {
 384    screen->base.screen = pscreen;
 385    if (!screen->base.screen) {
 386       debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
 387       return NULL;
 388    }
 389
 390    screen->base.get_egl_image = dri_get_egl_image;
 391    screen->base.get_param = dri_get_param;
 392
 393    screen->st_api = st_gl_api_create();
 394    if (!screen->st_api)
 395       return NULL;
 396
 397    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 398       screen->target = PIPE_TEXTURE_2D;
 399    else
 400       screen->target = PIPE_TEXTURE_RECT;
 401
 402    driParseOptionInfo(&screen->optionCache,
 403                       __driConfigOptions, __driNConfigOptions);
 404
 405    return dri_fill_in_modes(screen, pixel_bits);
 406 }
 407
 408 /* vim: set sw=3 ts=8 sts=3 expandtab: */