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 #include "dri_context.h"
  37
  38 #include "util/u_inlines.h"
  39 #include "pipe/p_screen.h"
  40 #include "pipe/p_format.h"
  41 #include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
  42
  43 #include "util/u_debug.h"
  44
  45 PUBLIC const char __driConfigOptions[] =
  46    DRI_CONF_BEGIN 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 DRI_CONF_SECTION_QUALITY
  50 /* DRI_CONF_FORCE_S3TC_ENABLE(false) */
  51    DRI_CONF_ALLOW_LARGE_TEXTURES(1)
  52    DRI_CONF_SECTION_END DRI_CONF_END;
  53
  54 static const uint __driNConfigOptions = 3;
  55
  56 static const __DRIconfig **
  57 dri_fill_in_modes(struct dri_screen *screen,
  58                   unsigned pixel_bits)
  59 {
  60    __DRIconfig **configs = NULL;
  61    __DRIconfig **configs_r5g6b5 = NULL;
  62    __DRIconfig **configs_a8r8g8b8 = NULL;
  63    __DRIconfig **configs_x8r8g8b8 = NULL;
  64    uint8_t depth_bits_array[5];
  65    uint8_t stencil_bits_array[5];
  66    uint8_t msaa_samples_array[5];
  67    unsigned depth_buffer_factor;
  68    unsigned back_buffer_factor;
  69    unsigned msaa_samples_factor;
  70    unsigned i;
  71    struct pipe_screen *p_screen = screen->base.screen;
  72    boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
  73    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
  74
  75    static const GLenum back_buffer_modes[] = {
  76       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
  77    };
  78
  79    depth_bits_array[0] = 0;
  80    stencil_bits_array[0] = 0;
  81    depth_buffer_factor = 1;
  82
  83    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
  84                                             PIPE_TEXTURE_2D, 0,
  85                                             PIPE_BIND_DEPTH_STENCIL, 0);
  86    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
  87                                             PIPE_TEXTURE_2D, 0,
  88                                             PIPE_BIND_DEPTH_STENCIL, 0);
  89    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
  90                                             PIPE_TEXTURE_2D, 0,
  91                                             PIPE_BIND_DEPTH_STENCIL, 0);
  92    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
  93                                             PIPE_TEXTURE_2D, 0,
  94                                             PIPE_BIND_DEPTH_STENCIL, 0);
  95    pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
  96                                                PIPE_TEXTURE_2D, 0,
  97                                                PIPE_BIND_RENDER_TARGET, 0);
  98    pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
  99                                                PIPE_TEXTURE_2D, 0,
 100                                                PIPE_BIND_RENDER_TARGET, 0);
 101    pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 102                                              PIPE_TEXTURE_2D, 0,
 103                                              PIPE_BIND_RENDER_TARGET, 0);
 104
 105    /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
 106    if (dri_with_format(screen->sPriv)) {
 107       pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 108                                              PIPE_TEXTURE_2D, 0,
 109                                              PIPE_BIND_DEPTH_STENCIL, 0);
 110       pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 111                                              PIPE_TEXTURE_2D, 0,
 112                                              PIPE_BIND_DEPTH_STENCIL, 0);
 113    } else {
 114       pf_z16 = FALSE;
 115       pf_z32 = FALSE;
 116    }
 117
 118    if (pf_z16) {
 119       depth_bits_array[depth_buffer_factor] = 16;
 120       stencil_bits_array[depth_buffer_factor++] = 0;
 121    }
 122    if (pf_x8z24 || pf_z24x8) {
 123       depth_bits_array[depth_buffer_factor] = 24;
 124       stencil_bits_array[depth_buffer_factor++] = 0;
 125       screen->d_depth_bits_last = pf_x8z24;
 126    }
 127    if (pf_s8z24 || pf_z24s8) {
 128       depth_bits_array[depth_buffer_factor] = 24;
 129       stencil_bits_array[depth_buffer_factor++] = 8;
 130       screen->sd_depth_bits_last = pf_s8z24;
 131    }
 132    if (pf_z32) {
 133       depth_bits_array[depth_buffer_factor] = 32;
 134       stencil_bits_array[depth_buffer_factor++] = 0;
 135    }
 136
 137    msaa_samples_array[0] = 0;
 138    back_buffer_factor = 3;
 139
 140    /* also test color for msaa 2/4/6/8 - just assume it'll work for all depth buffers */
 141    if (pf_r5g6b5) {
 142       msaa_samples_factor = 1;
 143       for (i = 1; i < 5; i++) {
 144          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 145                                                    PIPE_TEXTURE_2D, i*2,
 146                                                    PIPE_BIND_RENDER_TARGET, 0)) {
 147             msaa_samples_array[msaa_samples_factor] = i * 2;
 148             msaa_samples_factor++;
 149          }
 150       }
 151
 152       configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
 153                                         depth_bits_array, stencil_bits_array,
 154                                         depth_buffer_factor, back_buffer_modes,
 155                                         back_buffer_factor,
 156                                         msaa_samples_array, msaa_samples_factor,
 157                                         GL_TRUE);
 158    }
 159
 160    if (pf_a8r8g8b8) {
 161       msaa_samples_factor = 1;
 162       for (i = 1; i < 5; i++) {
 163          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
 164                                                    PIPE_TEXTURE_2D, i*2,
 165                                                    PIPE_BIND_RENDER_TARGET, 0)) {
 166             msaa_samples_array[msaa_samples_factor] = i * 2;
 167             msaa_samples_factor++;
 168          }
 169       }
 170
 171       configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
 172                                           depth_bits_array,
 173                                           stencil_bits_array,
 174                                           depth_buffer_factor,
 175                                           back_buffer_modes,
 176                                           back_buffer_factor,
 177                                           msaa_samples_array,
 178                                           msaa_samples_factor,
 179                                           GL_TRUE);
 180    }
 181
 182    if (pf_x8r8g8b8) {
 183       msaa_samples_factor = 1;
 184       for (i = 1; i < 5; i++) {
 185          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
 186                                                    PIPE_TEXTURE_2D, i*2,
 187                                                    PIPE_BIND_RENDER_TARGET, 0)) {
 188             msaa_samples_array[msaa_samples_factor] = i * 2;
 189             msaa_samples_factor++;
 190          }
 191       }
 192
 193       configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
 194                                           depth_bits_array,
 195                                           stencil_bits_array,
 196                                           depth_buffer_factor,
 197                                           back_buffer_modes,
 198                                           back_buffer_factor,
 199                                           msaa_samples_array,
 200                                           msaa_samples_factor,
 201                                           GL_TRUE);
 202    }
 203
 204    if (pixel_bits == 16) {
 205       configs = configs_r5g6b5;
 206       if (configs_a8r8g8b8)
 207          configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
 208       if (configs_x8r8g8b8)
 209          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 210    } else {
 211       configs = configs_a8r8g8b8;
 212       if (configs_x8r8g8b8)
 213          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 214       if (configs_r5g6b5)
 215          configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
 216    }
 217
 218    if (configs == NULL) {
 219       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 220       return NULL;
 221    }
 222
 223    return (const __DRIconfig **)configs;
 224 }
 225
 226 /**
 227  * Roughly the converse of dri_fill_in_modes.
 228  */
 229 void
 230 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 231                    const __GLcontextModes *mode)
 232 {
 233    memset(stvis, 0, sizeof(*stvis));
 234
 235    stvis->samples = mode->samples;
 236    stvis->render_buffer = ST_ATTACHMENT_INVALID;
 237
 238    if (mode->redBits == 8) {
 239       if (mode->alphaBits == 8)
 240          stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
 241       else
 242          stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
 243    } else {
 244       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 245    }
 246
 247    switch (mode->depthBits) {
 248    default:
 249    case 0:
 250       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 251       break;
 252    case 16:
 253       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 254       break;
 255    case 24:
 256       if (mode->stencilBits == 0) {
 257          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 258                                           PIPE_FORMAT_Z24X8_UNORM:
 259                                           PIPE_FORMAT_X8Z24_UNORM;
 260       } else {
 261          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 262                                           PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 263                                           PIPE_FORMAT_S8_USCALED_Z24_UNORM;
 264       }
 265       break;
 266    case 32:
 267       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 268       break;
 269    }
 270
 271    stvis->accum_format = (mode->haveAccumBuffer) ?
 272       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 273
 274    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 275    if (mode->doubleBufferMode)
 276       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 277    if (mode->stereoMode) {
 278       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 279       if (mode->doubleBufferMode)
 280          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 281    }
 282
 283    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 284       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 285    /* let the state tracker allocate the accum buffer */
 286 }
 287
 288 static boolean
 289 dri_get_egl_image(struct st_manager *smapi,
 290                   struct st_context_iface *stctxi,
 291                   void *egl_image,
 292                   struct st_egl_image *stimg)
 293 {
 294    struct dri_context *ctx =
 295       (struct dri_context *)stctxi->st_manager_private;
 296    __DRIimage *img = NULL;
 297
 298    if (ctx->lookup_egl_image) {
 299       img = ctx->lookup_egl_image(ctx, egl_image);
 300    }
 301
 302    if (!img)
 303       return FALSE;
 304
 305    stimg->texture = NULL;
 306    pipe_resource_reference(&stimg->texture, img->texture);
 307    stimg->face = img->face;
 308    stimg->level = img->level;
 309    stimg->zslice = img->zslice;
 310
 311    return TRUE;
 312 }
 313
 314 static int
 315 dri_get_param(struct st_manager *smapi,
 316               enum st_manager_param param)
 317 {
 318    struct dri_screen *screen = (struct dri_screen *)smapi;
 319
 320    switch(param) {
 321    case ST_MANAGER_BROKEN_INVALIDATE:
 322       return screen->broken_invalidate;
 323    default:
 324       return 0;
 325    }
 326 }
 327
 328 static void
 329 dri_destroy_option_cache(struct dri_screen * screen)
 330 {
 331    int i;
 332
 333    if (screen->optionCache.info) {
 334       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 335          FREE(screen->optionCache.info[i].name);
 336          FREE(screen->optionCache.info[i].ranges);
 337       }
 338       FREE(screen->optionCache.info);
 339    }
 340
 341    FREE(screen->optionCache.values);
 342 }
 343
 344 void
 345 dri_destroy_screen_helper(struct dri_screen * screen)
 346 {
 347    if (screen->st_api && screen->st_api->destroy)
 348       screen->st_api->destroy(screen->st_api);
 349
 350    if (screen->base.screen)
 351       screen->base.screen->destroy(screen->base.screen);
 352
 353    dri_destroy_option_cache(screen);
 354 }
 355
 356 void
 357 dri_destroy_screen(__DRIscreen * sPriv)
 358 {
 359    struct dri_screen *screen = dri_screen(sPriv);
 360
 361    dri_destroy_screen_helper(screen);
 362
 363    FREE(screen);
 364    sPriv->private = NULL;
 365    sPriv->extensions = NULL;
 366 }
 367
 368 const __DRIconfig **
 369 dri_init_screen_helper(struct dri_screen *screen,
 370                        struct pipe_screen *pscreen,
 371                        unsigned pixel_bits)
 372 {
 373    screen->base.screen = pscreen;
 374    if (!screen->base.screen) {
 375       debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
 376       return NULL;
 377    }
 378
 379    screen->base.get_egl_image = dri_get_egl_image;
 380    screen->base.get_param = dri_get_param;
 381    screen->st_api = st_gl_api_create();
 382
 383    if (!screen->st_api)
 384       return NULL;
 385
 386    driParseOptionInfo(&screen->optionCache,
 387                       __driConfigOptions, __driNConfigOptions);
 388
 389    return dri_fill_in_modes(screen, pixel_bits);
 390 }
 391
 392 /* vim: set sw=3 ts=8 sts=3 expandtab: */