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 #define MSAA_VISUAL_MAX_SAMPLES 8
  45
  46 PUBLIC const char __driConfigOptions[] =
  47    DRI_CONF_BEGIN
  48       DRI_CONF_SECTION_PERFORMANCE
  49          DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
  50          DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  51       DRI_CONF_SECTION_END
  52
  53       DRI_CONF_SECTION_QUALITY
  54 /*       DRI_CONF_FORCE_S3TC_ENABLE(false) */
  55          DRI_CONF_ALLOW_LARGE_TEXTURES(1)
  56          DRI_CONF_PP_CELSHADE(0)
  57          DRI_CONF_PP_NORED(0)
  58          DRI_CONF_PP_NOGREEN(0)
  59          DRI_CONF_PP_NOBLUE(0)
  60          DRI_CONF_PP_JIMENEZMLAA(0, 0, 32)
  61          DRI_CONF_PP_JIMENEZMLAA_COLOR(0, 0, 32)
  62       DRI_CONF_SECTION_END
  63    DRI_CONF_END;
  64
  65 static const uint __driNConfigOptions = 9;
  66
  67 static const __DRIconfig **
  68 dri_fill_in_modes(struct dri_screen *screen,
  69                   unsigned pixel_bits)
  70 {
  71    __DRIconfig **configs = NULL;
  72    __DRIconfig **configs_r5g6b5 = NULL;
  73    __DRIconfig **configs_a8r8g8b8 = NULL;
  74    __DRIconfig **configs_x8r8g8b8 = NULL;
  75    uint8_t depth_bits_array[5];
  76    uint8_t stencil_bits_array[5];
  77    uint8_t msaa_samples_array[MSAA_VISUAL_MAX_SAMPLES];
  78    unsigned depth_buffer_factor;
  79    unsigned back_buffer_factor;
  80    unsigned msaa_samples_factor, msaa_samples_max;
  81    unsigned i;
  82    struct pipe_screen *p_screen = screen->base.screen;
  83    boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
  84    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
  85
  86    static const GLenum back_buffer_modes[] = {
  87       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
  88    };
  89
  90    depth_bits_array[0] = 0;
  91    stencil_bits_array[0] = 0;
  92    depth_buffer_factor = 1;
  93
  94    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS)
  95       ? MSAA_VISUAL_MAX_SAMPLES : 1;
  96
  97    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
  98                                             PIPE_TEXTURE_2D, 0,
  99                                             PIPE_BIND_DEPTH_STENCIL);
 100    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 101                                             PIPE_TEXTURE_2D, 0,
 102                                             PIPE_BIND_DEPTH_STENCIL);
 103    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 104                                             PIPE_TEXTURE_2D, 0,
 105                                             PIPE_BIND_DEPTH_STENCIL);
 106    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 107                                             PIPE_TEXTURE_2D, 0,
 108                                             PIPE_BIND_DEPTH_STENCIL);
 109    pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
 110                                                PIPE_TEXTURE_2D, 0,
 111                                                PIPE_BIND_RENDER_TARGET);
 112    pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
 113                                                PIPE_TEXTURE_2D, 0,
 114                                                PIPE_BIND_RENDER_TARGET);
 115    pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 116                                              PIPE_TEXTURE_2D, 0,
 117                                              PIPE_BIND_RENDER_TARGET);
 118
 119    /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
 120    if (dri_with_format(screen->sPriv)) {
 121       pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 122                                              PIPE_TEXTURE_2D, 0,
 123                                              PIPE_BIND_DEPTH_STENCIL);
 124       pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 125                                              PIPE_TEXTURE_2D, 0,
 126                                              PIPE_BIND_DEPTH_STENCIL);
 127    } else {
 128       pf_z16 = FALSE;
 129       pf_z32 = FALSE;
 130    }
 131
 132    if (pf_z16) {
 133       depth_bits_array[depth_buffer_factor] = 16;
 134       stencil_bits_array[depth_buffer_factor++] = 0;
 135    }
 136    if (pf_x8z24 || pf_z24x8) {
 137       depth_bits_array[depth_buffer_factor] = 24;
 138       stencil_bits_array[depth_buffer_factor++] = 0;
 139       screen->d_depth_bits_last = pf_x8z24;
 140    }
 141    if (pf_s8z24 || pf_z24s8) {
 142       depth_bits_array[depth_buffer_factor] = 24;
 143       stencil_bits_array[depth_buffer_factor++] = 8;
 144       screen->sd_depth_bits_last = pf_s8z24;
 145    }
 146    if (pf_z32) {
 147       depth_bits_array[depth_buffer_factor] = 32;
 148       stencil_bits_array[depth_buffer_factor++] = 0;
 149    }
 150
 151    msaa_samples_array[0] = 0;
 152    back_buffer_factor = 3;
 153
 154    /* Also test for color multisample support - just assume it'll work
 155     * for all depth buffers.
 156     */
 157    if (pf_r5g6b5) {
 158       msaa_samples_factor = 1;
 159       for (i = 2; i <= msaa_samples_max; i++) {
 160          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 161                                                    PIPE_TEXTURE_2D, i,
 162                                                    PIPE_BIND_RENDER_TARGET)) {
 163             msaa_samples_array[msaa_samples_factor] = i;
 164             msaa_samples_factor++;
 165          }
 166       }
 167
 168       configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
 169                                         depth_bits_array, stencil_bits_array,
 170                                         depth_buffer_factor, back_buffer_modes,
 171                                         back_buffer_factor,
 172                                         msaa_samples_array, msaa_samples_factor,
 173                                         GL_TRUE);
 174    }
 175
 176    if (pf_a8r8g8b8) {
 177       msaa_samples_factor = 1;
 178       for (i = 2; i <= msaa_samples_max; i++) {
 179          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
 180                                                    PIPE_TEXTURE_2D, i,
 181                                                    PIPE_BIND_RENDER_TARGET)) {
 182             msaa_samples_array[msaa_samples_factor] = i;
 183             msaa_samples_factor++;
 184          }
 185       }
 186
 187       configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
 188                                           depth_bits_array,
 189                                           stencil_bits_array,
 190                                           depth_buffer_factor,
 191                                           back_buffer_modes,
 192                                           back_buffer_factor,
 193                                           msaa_samples_array,
 194                                           msaa_samples_factor,
 195                                           GL_TRUE);
 196    }
 197
 198    if (pf_x8r8g8b8) {
 199       msaa_samples_factor = 1;
 200       for (i = 2; i <= msaa_samples_max; i++) {
 201          if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
 202                                                    PIPE_TEXTURE_2D, i,
 203                                                    PIPE_BIND_RENDER_TARGET)) {
 204             msaa_samples_array[msaa_samples_factor] = i;
 205             msaa_samples_factor++;
 206          }
 207       }
 208
 209       configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
 210                                           depth_bits_array,
 211                                           stencil_bits_array,
 212                                           depth_buffer_factor,
 213                                           back_buffer_modes,
 214                                           back_buffer_factor,
 215                                           msaa_samples_array,
 216                                           msaa_samples_factor,
 217                                           GL_TRUE);
 218    }
 219
 220    if (pixel_bits == 16) {
 221       configs = configs_r5g6b5;
 222       configs = driConcatConfigs(configs, configs_a8r8g8b8);
 223       configs = driConcatConfigs(configs, configs_x8r8g8b8);
 224    } else {
 225       configs = configs_a8r8g8b8;
 226       configs = driConcatConfigs(configs, configs_x8r8g8b8);
 227       configs = driConcatConfigs(configs, configs_r5g6b5);
 228    }
 229
 230    if (configs == NULL) {
 231       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 232       return NULL;
 233    }
 234
 235    return (const __DRIconfig **)configs;
 236 }
 237
 238 /**
 239  * Roughly the converse of dri_fill_in_modes.
 240  */
 241 void
 242 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 243                    const struct gl_config *mode)
 244 {
 245    memset(stvis, 0, sizeof(*stvis));
 246
 247    if (!mode)
 248       return;
 249
 250    stvis->samples = mode->samples;
 251
 252    if (mode->redBits == 8) {
 253       if (mode->alphaBits == 8)
 254          stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
 255       else
 256          stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
 257    } else {
 258       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 259    }
 260
 261    switch (mode->depthBits) {
 262    default:
 263    case 0:
 264       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 265       break;
 266    case 16:
 267       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 268       break;
 269    case 24:
 270       if (mode->stencilBits == 0) {
 271          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 272                                           PIPE_FORMAT_Z24X8_UNORM:
 273                                           PIPE_FORMAT_X8Z24_UNORM;
 274       } else {
 275          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 276                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 277                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 278       }
 279       break;
 280    case 32:
 281       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 282       break;
 283    }
 284
 285    stvis->accum_format = (mode->haveAccumBuffer) ?
 286       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 287
 288    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 289    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 290    if (mode->doubleBufferMode) {
 291       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 292       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 293    }
 294    if (mode->stereoMode) {
 295       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 296       if (mode->doubleBufferMode)
 297          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 298    }
 299
 300    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 301       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 302    /* let the state tracker allocate the accum buffer */
 303 }
 304
 305 static boolean
 306 dri_get_egl_image(struct st_manager *smapi,
 307                   void *egl_image,
 308                   struct st_egl_image *stimg)
 309 {
 310    struct dri_screen *screen = (struct dri_screen *)smapi;
 311    __DRIimage *img = NULL;
 312
 313    if (screen->lookup_egl_image) {
 314       img = screen->lookup_egl_image(screen, egl_image);
 315    }
 316
 317    if (!img)
 318       return FALSE;
 319
 320    stimg->texture = NULL;
 321    pipe_resource_reference(&stimg->texture, img->texture);
 322    stimg->level = img->level;
 323    stimg->layer = img->layer;
 324
 325    return TRUE;
 326 }
 327
 328 static int
 329 dri_get_param(struct st_manager *smapi,
 330               enum st_manager_param param)
 331 {
 332    struct dri_screen *screen = (struct dri_screen *)smapi;
 333
 334    switch(param) {
 335    case ST_MANAGER_BROKEN_INVALIDATE:
 336       return screen->broken_invalidate;
 337    default:
 338       return 0;
 339    }
 340 }
 341
 342 static void
 343 dri_destroy_option_cache(struct dri_screen * screen)
 344 {
 345    int i;
 346
 347    if (screen->optionCache.info) {
 348       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 349          FREE(screen->optionCache.info[i].name);
 350          FREE(screen->optionCache.info[i].ranges);
 351       }
 352       FREE(screen->optionCache.info);
 353    }
 354
 355    FREE(screen->optionCache.values);
 356 }
 357
 358 void
 359 dri_destroy_screen_helper(struct dri_screen * screen)
 360 {
 361    if (screen->st_api && screen->st_api->destroy)
 362       screen->st_api->destroy(screen->st_api);
 363
 364    if (screen->base.screen)
 365       screen->base.screen->destroy(screen->base.screen);
 366
 367    dri_destroy_option_cache(screen);
 368 }
 369
 370 void
 371 dri_destroy_screen(__DRIscreen * sPriv)
 372 {
 373    struct dri_screen *screen = dri_screen(sPriv);
 374
 375    dri_destroy_screen_helper(screen);
 376
 377    FREE(screen);
 378    sPriv->driverPrivate = NULL;
 379    sPriv->extensions = NULL;
 380 }
 381
 382 const __DRIconfig **
 383 dri_init_screen_helper(struct dri_screen *screen,
 384                        struct pipe_screen *pscreen,
 385                        unsigned pixel_bits)
 386 {
 387    screen->base.screen = pscreen;
 388    if (!screen->base.screen) {
 389       debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
 390       return NULL;
 391    }
 392
 393    screen->base.get_egl_image = dri_get_egl_image;
 394    screen->base.get_param = dri_get_param;
 395
 396    screen->st_api = st_gl_api_create();
 397    if (!screen->st_api)
 398       return NULL;
 399
 400    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 401       screen->target = PIPE_TEXTURE_2D;
 402    else
 403       screen->target = PIPE_TEXTURE_RECT;
 404
 405    driParseOptionInfo(&screen->optionCache,
 406                       __driConfigOptions, __driNConfigOptions);
 407
 408    return dri_fill_in_modes(screen, pixel_bits);
 409 }
 410
 411 /* vim: set sw=3 ts=8 sts=3 expandtab: */