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 DRI_CONF_SECTION_PERFORMANCE
  46    DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
  47    DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  48    DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
  49 /* DRI_CONF_FORCE_S3TC_ENABLE(false) */
  50    DRI_CONF_ALLOW_LARGE_TEXTURES(1)
  51    DRI_CONF_SECTION_END DRI_CONF_END;
  52
  53 static const uint __driNConfigOptions = 3;
  54
  55 static const __DRIconfig **
  56 dri_fill_in_modes(struct dri_screen *screen,
  57                   unsigned pixel_bits)
  58 {
  59    __DRIconfig **configs = NULL;
  60    __DRIconfig **configs_r5g6b5 = NULL;
  61    __DRIconfig **configs_a8r8g8b8 = NULL;
  62    __DRIconfig **configs_x8r8g8b8 = NULL;
  63    uint8_t depth_bits_array[5];
  64    uint8_t stencil_bits_array[5];
  65    uint8_t msaa_samples_array[5];
  66    unsigned depth_buffer_factor;
  67    unsigned back_buffer_factor;
  68    unsigned msaa_samples_factor;
  69    unsigned i;
  70    struct pipe_screen *p_screen = screen->base.screen;
  71    boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
  72    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
  73
  74    static const GLenum back_buffer_modes[] = {
  75       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
  76    };
  77
  78    depth_bits_array[0] = 0;
  79    stencil_bits_array[0] = 0;
  80    depth_buffer_factor = 1;
  81
  82    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
  83                                             PIPE_TEXTURE_2D, 0,
  84                                             PIPE_BIND_DEPTH_STENCIL);
  85    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
  86                                             PIPE_TEXTURE_2D, 0,
  87                                             PIPE_BIND_DEPTH_STENCIL);
  88    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
  89                                             PIPE_TEXTURE_2D, 0,
  90                                             PIPE_BIND_DEPTH_STENCIL);
  91    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
  92                                             PIPE_TEXTURE_2D, 0,
  93                                             PIPE_BIND_DEPTH_STENCIL);
  94    pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
  95                                                PIPE_TEXTURE_2D, 0,
  96                                                PIPE_BIND_RENDER_TARGET);
  97    pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
  98                                                PIPE_TEXTURE_2D, 0,
  99                                                PIPE_BIND_RENDER_TARGET);
 100    pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 101                                              PIPE_TEXTURE_2D, 0,
 102                                              PIPE_BIND_RENDER_TARGET);
 103
 104    /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
 105    if (dri_with_format(screen->sPriv)) {
 106       pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 107                                              PIPE_TEXTURE_2D, 0,
 108                                              PIPE_BIND_DEPTH_STENCIL);
 109       pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 110                                              PIPE_TEXTURE_2D, 0,
 111                                              PIPE_BIND_DEPTH_STENCIL);
 112    } else {
 113       pf_z16 = FALSE;
 114       pf_z32 = FALSE;
 115    }
 116
 117    if (pf_z16) {
 118       depth_bits_array[depth_buffer_factor] = 16;
 119       stencil_bits_array[depth_buffer_factor++] = 0;
 120    }
 121    if (pf_x8z24 || pf_z24x8) {
 122       depth_bits_array[depth_buffer_factor] = 24;
 123       stencil_bits_array[depth_buffer_factor++] = 0;
 124       screen->d_depth_bits_last = pf_x8z24;
 125    }
 126    if (pf_s8z24 || pf_z24s8) {
 127       depth_bits_array[depth_buffer_factor] = 24;
 128       stencil_bits_array[depth_buffer_factor++] = 8;
 129       screen->sd_depth_bits_last = pf_s8z24;
 130    }
 131    if (pf_z32) {
 132       depth_bits_array[depth_buffer_factor] = 32;
 133       stencil_bits_array[depth_buffer_factor++] = 0;
 134    }
 135
 136    msaa_samples_array[0] = 0;
 137    back_buffer_factor = 3;
 138
 139    /* also test color for msaa 2/4/6/8 - just assume it'll work for all depth buffers */
 140    if (pf_r5g6b5) {
 141       msaa_samples_factor = 1;
 142       for (i = 1; i < 5; i++) {
 143          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 144                                                    PIPE_TEXTURE_2D, i*2,
 145                                                    PIPE_BIND_RENDER_TARGET)) {
 146             msaa_samples_array[msaa_samples_factor] = i * 2;
 147             msaa_samples_factor++;
 148          }
 149       }
 150
 151       configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
 152                                         depth_bits_array, stencil_bits_array,
 153                                         depth_buffer_factor, back_buffer_modes,
 154                                         back_buffer_factor,
 155                                         msaa_samples_array, msaa_samples_factor,
 156                                         GL_TRUE);
 157    }
 158
 159    if (pf_a8r8g8b8) {
 160       msaa_samples_factor = 1;
 161       for (i = 1; i < 5; i++) {
 162          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
 163                                                    PIPE_TEXTURE_2D, i*2,
 164                                                    PIPE_BIND_RENDER_TARGET)) {
 165             msaa_samples_array[msaa_samples_factor] = i * 2;
 166             msaa_samples_factor++;
 167          }
 168       }
 169
 170       configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
 171                                           depth_bits_array,
 172                                           stencil_bits_array,
 173                                           depth_buffer_factor,
 174                                           back_buffer_modes,
 175                                           back_buffer_factor,
 176                                           msaa_samples_array,
 177                                           msaa_samples_factor,
 178                                           GL_TRUE);
 179    }
 180
 181    if (pf_x8r8g8b8) {
 182       msaa_samples_factor = 1;
 183       for (i = 1; i < 5; i++) {
 184          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
 185                                                    PIPE_TEXTURE_2D, i*2,
 186                                                    PIPE_BIND_RENDER_TARGET)) {
 187             msaa_samples_array[msaa_samples_factor] = i * 2;
 188             msaa_samples_factor++;
 189          }
 190       }
 191
 192       configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
 193                                           depth_bits_array,
 194                                           stencil_bits_array,
 195                                           depth_buffer_factor,
 196                                           back_buffer_modes,
 197                                           back_buffer_factor,
 198                                           msaa_samples_array,
 199                                           msaa_samples_factor,
 200                                           GL_TRUE);
 201    }
 202
 203    if (pixel_bits == 16) {
 204       configs = configs_r5g6b5;
 205       if (configs_a8r8g8b8)
 206          configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
 207       if (configs_x8r8g8b8)
 208          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 209    } else {
 210       configs = configs_a8r8g8b8;
 211       if (configs_x8r8g8b8)
 212          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 213       if (configs_r5g6b5)
 214          configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
 215    }
 216
 217    if (configs == NULL) {
 218       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 219       return NULL;
 220    }
 221
 222    return (const __DRIconfig **)configs;
 223 }
 224
 225 /**
 226  * Roughly the converse of dri_fill_in_modes.
 227  */
 228 void
 229 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 230                    const struct gl_config *mode)
 231 {
 232    memset(stvis, 0, sizeof(*stvis));
 233
 234    if (!mode)
 235       return;
 236
 237    stvis->samples = mode->samples;
 238
 239    if (mode->redBits == 8) {
 240       if (mode->alphaBits == 8)
 241          stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
 242       else
 243          stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
 244    } else {
 245       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 246    }
 247
 248    switch (mode->depthBits) {
 249    default:
 250    case 0:
 251       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 252       break;
 253    case 16:
 254       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 255       break;
 256    case 24:
 257       if (mode->stencilBits == 0) {
 258          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 259                                           PIPE_FORMAT_Z24X8_UNORM:
 260                                           PIPE_FORMAT_X8Z24_UNORM;
 261       } else {
 262          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 263                                           PIPE_FORMAT_Z24_UNORM_S8_USCALED:
 264                                           PIPE_FORMAT_S8_USCALED_Z24_UNORM;
 265       }
 266       break;
 267    case 32:
 268       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 269       break;
 270    }
 271
 272    stvis->accum_format = (mode->haveAccumBuffer) ?
 273       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 274
 275    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 276    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 277    if (mode->doubleBufferMode) {
 278       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 279       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 280    }
 281    if (mode->stereoMode) {
 282       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 283       if (mode->doubleBufferMode)
 284          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 285    }
 286
 287    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 288       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 289    /* let the state tracker allocate the accum buffer */
 290 }
 291
 292 static boolean
 293 dri_get_egl_image(struct st_manager *smapi,
 294                   void *egl_image,
 295                   struct st_egl_image *stimg)
 296 {
 297    struct dri_screen *screen = (struct dri_screen *)smapi;
 298    __DRIimage *img = NULL;
 299
 300    if (screen->lookup_egl_image) {
 301       img = screen->lookup_egl_image(screen, egl_image);
 302    }
 303
 304    if (!img)
 305       return FALSE;
 306
 307    stimg->texture = NULL;
 308    pipe_resource_reference(&stimg->texture, img->texture);
 309    stimg->level = img->level;
 310    stimg->layer = img->layer;
 311
 312    return TRUE;
 313 }
 314
 315 static int
 316 dri_get_param(struct st_manager *smapi,
 317               enum st_manager_param param)
 318 {
 319    struct dri_screen *screen = (struct dri_screen *)smapi;
 320
 321    switch(param) {
 322    case ST_MANAGER_BROKEN_INVALIDATE:
 323       return screen->broken_invalidate;
 324    default:
 325       return 0;
 326    }
 327 }
 328
 329 static void
 330 dri_destroy_option_cache(struct dri_screen * screen)
 331 {
 332    int i;
 333
 334    if (screen->optionCache.info) {
 335       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 336          FREE(screen->optionCache.info[i].name);
 337          FREE(screen->optionCache.info[i].ranges);
 338       }
 339       FREE(screen->optionCache.info);
 340    }
 341
 342    FREE(screen->optionCache.values);
 343 }
 344
 345 void
 346 dri_destroy_screen_helper(struct dri_screen * screen)
 347 {
 348    if (screen->st_api && screen->st_api->destroy)
 349       screen->st_api->destroy(screen->st_api);
 350
 351    if (screen->base.screen)
 352       screen->base.screen->destroy(screen->base.screen);
 353
 354    dri_destroy_option_cache(screen);
 355 }
 356
 357 void
 358 dri_destroy_screen(__DRIscreen * sPriv)
 359 {
 360    struct dri_screen *screen = dri_screen(sPriv);
 361
 362    dri_destroy_screen_helper(screen);
 363
 364    FREE(screen);
 365    sPriv->private = NULL;
 366    sPriv->extensions = NULL;
 367 }
 368
 369 const __DRIconfig **
 370 dri_init_screen_helper(struct dri_screen *screen,
 371                        struct pipe_screen *pscreen,
 372                        unsigned pixel_bits)
 373 {
 374    screen->base.screen = pscreen;
 375    if (!screen->base.screen) {
 376       debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
 377       return NULL;
 378    }
 379
 380    screen->base.get_egl_image = dri_get_egl_image;
 381    screen->base.get_param = dri_get_param;
 382
 383    screen->st_api = st_gl_api_create();
 384    if (!screen->st_api)
 385       return NULL;
 386
 387    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 388       screen->target = PIPE_TEXTURE_2D;
 389    else
 390       screen->target = PIPE_TEXTURE_RECT;
 391
 392    driParseOptionInfo(&screen->optionCache,
 393                       __driConfigOptions, __driNConfigOptions);
 394
 395    return dri_fill_in_modes(screen, pixel_bits);
 396 }
 397
 398 /* vim: set sw=3 ts=8 sts=3 expandtab: */