src/gallium/state_trackers/dri/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 "pipe-loader/pipe_loader.h"
  42 #include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
  43 #include "state_tracker/drm_driver.h"
  44
  45 #include "util/u_debug.h"
  46 #include "util/u_format_s3tc.h"
  47
  48 #define MSAA_VISUAL_MAX_SAMPLES 32
  49
  50 #undef false
  51
  52 const __DRIconfigOptionsExtension gallium_config_options = {
  53    .base = { __DRI_CONFIG_OPTIONS, 1 },
  54    .xml =
  55
  56    DRI_CONF_BEGIN
  57       DRI_CONF_SECTION_PERFORMANCE
  58          DRI_CONF_MESA_GLTHREAD("false")
  59       DRI_CONF_SECTION_END
  60
  61       DRI_CONF_SECTION_QUALITY
  62          DRI_CONF_FORCE_S3TC_ENABLE("false")
  63          DRI_CONF_PP_CELSHADE(0)
  64          DRI_CONF_PP_NORED(0)
  65          DRI_CONF_PP_NOGREEN(0)
  66          DRI_CONF_PP_NOBLUE(0)
  67          DRI_CONF_PP_JIMENEZMLAA(0, 0, 32)
  68          DRI_CONF_PP_JIMENEZMLAA_COLOR(0, 0, 32)
  69       DRI_CONF_SECTION_END
  70
  71       DRI_CONF_SECTION_DEBUG
  72          DRI_CONF_FORCE_GLSL_EXTENSIONS_WARN("false")
  73          DRI_CONF_DISABLE_GLSL_LINE_CONTINUATIONS("false")
  74          DRI_CONF_DISABLE_BLEND_FUNC_EXTENDED("false")
  75          DRI_CONF_DISABLE_SHADER_BIT_ENCODING("false")
  76          DRI_CONF_FORCE_GLSL_VERSION(0)
  77          DRI_CONF_ALLOW_GLSL_EXTENSION_DIRECTIVE_MIDSHADER("false")
  78          DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION("false")
  79          DRI_CONF_FORCE_GLSL_ABS_SQRT("false")
  80       DRI_CONF_SECTION_END
  81
  82       DRI_CONF_SECTION_MISCELLANEOUS
  83          DRI_CONF_ALWAYS_HAVE_DEPTH_BUFFER("false")
  84          DRI_CONF_GLSL_ZERO_INIT("false")
  85       DRI_CONF_SECTION_END
  86    DRI_CONF_END
  87 };
  88
  89 #define false 0
  90
  91 static void
  92 dri_fill_st_options(struct dri_screen *screen)
  93 {
  94    struct st_config_options *options = &screen->options;
  95    const struct driOptionCache *optionCache = &screen->optionCache;
  96
  97    options->disable_blend_func_extended =
  98       driQueryOptionb(optionCache, "disable_blend_func_extended");
  99    options->disable_glsl_line_continuations =
 100       driQueryOptionb(optionCache, "disable_glsl_line_continuations");
 101    options->disable_shader_bit_encoding =
 102       driQueryOptionb(optionCache, "disable_shader_bit_encoding");
 103    options->force_glsl_extensions_warn =
 104       driQueryOptionb(optionCache, "force_glsl_extensions_warn");
 105    options->force_glsl_version =
 106       driQueryOptioni(optionCache, "force_glsl_version");
 107    options->force_s3tc_enable =
 108       driQueryOptionb(optionCache, "force_s3tc_enable");
 109    options->allow_glsl_extension_directive_midshader =
 110       driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
 111    options->allow_higher_compat_version =
 112       driQueryOptionb(optionCache, "allow_higher_compat_version");
 113    options->glsl_zero_init = driQueryOptionb(optionCache, "glsl_zero_init");
 114    options->force_glsl_abs_sqrt =
 115       driQueryOptionb(optionCache, "force_glsl_abs_sqrt");
 116
 117    driComputeOptionsSha1(optionCache, options->config_options_sha1);
 118 }
 119
 120 static const __DRIconfig **
 121 dri_fill_in_modes(struct dri_screen *screen)
 122 {
 123    static const mesa_format mesa_formats[] = {
 124       MESA_FORMAT_B8G8R8A8_UNORM,
 125       MESA_FORMAT_B8G8R8X8_UNORM,
 126       MESA_FORMAT_B8G8R8A8_SRGB,
 127       MESA_FORMAT_B8G8R8X8_SRGB,
 128       MESA_FORMAT_B5G6R5_UNORM,
 129    };
 130    static const enum pipe_format pipe_formats[] = {
 131       PIPE_FORMAT_BGRA8888_UNORM,
 132       PIPE_FORMAT_BGRX8888_UNORM,
 133       PIPE_FORMAT_BGRA8888_SRGB,
 134       PIPE_FORMAT_BGRX8888_SRGB,
 135       PIPE_FORMAT_B5G6R5_UNORM,
 136    };
 137    mesa_format format;
 138    __DRIconfig **configs = NULL;
 139    uint8_t depth_bits_array[5];
 140    uint8_t stencil_bits_array[5];
 141    unsigned depth_buffer_factor;
 142    unsigned msaa_samples_max;
 143    unsigned i;
 144    struct pipe_screen *p_screen = screen->base.screen;
 145    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 146    boolean mixed_color_depth;
 147
 148    static const GLenum back_buffer_modes[] = {
 149       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 150    };
 151
 152    if (driQueryOptionb(&screen->optionCache, "always_have_depth_buffer")) {
 153       /* all visuals will have a depth buffer */
 154       depth_buffer_factor = 0;
 155    }
 156    else {
 157       depth_bits_array[0] = 0;
 158       stencil_bits_array[0] = 0;
 159       depth_buffer_factor = 1;
 160    }
 161
 162    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 163       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 164
 165    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 166                                             PIPE_TEXTURE_2D, 0,
 167                                             PIPE_BIND_DEPTH_STENCIL);
 168    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 169                                             PIPE_TEXTURE_2D, 0,
 170                                             PIPE_BIND_DEPTH_STENCIL);
 171    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 172                                             PIPE_TEXTURE_2D, 0,
 173                                             PIPE_BIND_DEPTH_STENCIL);
 174    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 175                                             PIPE_TEXTURE_2D, 0,
 176                                             PIPE_BIND_DEPTH_STENCIL);
 177    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 178                                           PIPE_TEXTURE_2D, 0,
 179                                           PIPE_BIND_DEPTH_STENCIL);
 180    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 181                                           PIPE_TEXTURE_2D, 0,
 182                                           PIPE_BIND_DEPTH_STENCIL);
 183
 184    if (pf_z16) {
 185       depth_bits_array[depth_buffer_factor] = 16;
 186       stencil_bits_array[depth_buffer_factor++] = 0;
 187    }
 188    if (pf_x8z24 || pf_z24x8) {
 189       depth_bits_array[depth_buffer_factor] = 24;
 190       stencil_bits_array[depth_buffer_factor++] = 0;
 191       screen->d_depth_bits_last = pf_x8z24;
 192    }
 193    if (pf_s8z24 || pf_z24s8) {
 194       depth_bits_array[depth_buffer_factor] = 24;
 195       stencil_bits_array[depth_buffer_factor++] = 8;
 196       screen->sd_depth_bits_last = pf_s8z24;
 197    }
 198    if (pf_z32) {
 199       depth_bits_array[depth_buffer_factor] = 32;
 200       stencil_bits_array[depth_buffer_factor++] = 0;
 201    }
 202
 203    mixed_color_depth =
 204       p_screen->get_param(p_screen, PIPE_CAP_MIXED_COLOR_DEPTH_BITS);
 205
 206    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 207
 208    /* Add configs. */
 209    for (format = 0; format < ARRAY_SIZE(mesa_formats); format++) {
 210       __DRIconfig **new_configs = NULL;
 211       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 212       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 213
 214       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 215                                          PIPE_TEXTURE_2D, 0,
 216                                          PIPE_BIND_RENDER_TARGET))
 217          continue;
 218
 219       for (i = 1; i <= msaa_samples_max; i++) {
 220          int samples = i > 1 ? i : 0;
 221
 222          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 223                                            PIPE_TEXTURE_2D, samples,
 224                                            PIPE_BIND_RENDER_TARGET)) {
 225             msaa_modes[num_msaa_modes++] = samples;
 226          }
 227       }
 228
 229       if (num_msaa_modes) {
 230          /* Single-sample configs with an accumulation buffer. */
 231          new_configs = driCreateConfigs(mesa_formats[format],
 232                                         depth_bits_array, stencil_bits_array,
 233                                         depth_buffer_factor, back_buffer_modes,
 234                                         ARRAY_SIZE(back_buffer_modes),
 235                                         msaa_modes, 1,
 236                                         GL_TRUE, !mixed_color_depth);
 237          configs = driConcatConfigs(configs, new_configs);
 238
 239          /* Multi-sample configs without an accumulation buffer. */
 240          if (num_msaa_modes > 1) {
 241             new_configs = driCreateConfigs(mesa_formats[format],
 242                                            depth_bits_array, stencil_bits_array,
 243                                            depth_buffer_factor, back_buffer_modes,
 244                                            ARRAY_SIZE(back_buffer_modes),
 245                                            msaa_modes+1, num_msaa_modes-1,
 246                                            GL_FALSE, !mixed_color_depth);
 247             configs = driConcatConfigs(configs, new_configs);
 248          }
 249       }
 250    }
 251
 252    if (configs == NULL) {
 253       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 254       return NULL;
 255    }
 256
 257    return (const __DRIconfig **)configs;
 258 }
 259
 260 /**
 261  * Roughly the converse of dri_fill_in_modes.
 262  */
 263 void
 264 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 265                    const struct gl_config *mode)
 266 {
 267    memset(stvis, 0, sizeof(*stvis));
 268
 269    if (!mode)
 270       return;
 271
 272    if (mode->redBits == 8) {
 273       if (mode->alphaBits == 8)
 274          if (mode->sRGBCapable)
 275             stvis->color_format = PIPE_FORMAT_BGRA8888_SRGB;
 276          else
 277             stvis->color_format = PIPE_FORMAT_BGRA8888_UNORM;
 278       else
 279          if (mode->sRGBCapable)
 280             stvis->color_format = PIPE_FORMAT_BGRX8888_SRGB;
 281          else
 282             stvis->color_format = PIPE_FORMAT_BGRX8888_UNORM;
 283    } else {
 284       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 285    }
 286
 287    if (mode->sampleBuffers) {
 288       stvis->samples = mode->samples;
 289    }
 290
 291    switch (mode->depthBits) {
 292    default:
 293    case 0:
 294       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 295       break;
 296    case 16:
 297       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 298       break;
 299    case 24:
 300       if (mode->stencilBits == 0) {
 301          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 302                                           PIPE_FORMAT_Z24X8_UNORM:
 303                                           PIPE_FORMAT_X8Z24_UNORM;
 304       } else {
 305          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 306                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 307                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 308       }
 309       break;
 310    case 32:
 311       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 312       break;
 313    }
 314
 315    stvis->accum_format = (mode->haveAccumBuffer) ?
 316       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 317
 318    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 319    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 320    if (mode->doubleBufferMode) {
 321       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 322       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 323    }
 324    if (mode->stereoMode) {
 325       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 326       if (mode->doubleBufferMode)
 327          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 328    }
 329
 330    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 331       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 332    /* let the state tracker allocate the accum buffer */
 333 }
 334
 335 static boolean
 336 dri_get_egl_image(struct st_manager *smapi,
 337                   void *egl_image,
 338                   struct st_egl_image *stimg)
 339 {
 340    struct dri_screen *screen = (struct dri_screen *)smapi;
 341    __DRIimage *img = NULL;
 342
 343    if (screen->lookup_egl_image) {
 344       img = screen->lookup_egl_image(screen, egl_image);
 345    }
 346
 347    if (!img)
 348       return FALSE;
 349
 350    stimg->texture = NULL;
 351    pipe_resource_reference(&stimg->texture, img->texture);
 352    switch (img->dri_components) {
 353    case __DRI_IMAGE_COMPONENTS_Y_U_V:
 354       stimg->format = PIPE_FORMAT_IYUV;
 355       break;
 356    case __DRI_IMAGE_COMPONENTS_Y_UV:
 357       stimg->format = PIPE_FORMAT_NV12;
 358       break;
 359    default:
 360       stimg->format = img->texture->format;
 361       break;
 362    }
 363    stimg->level = img->level;
 364    stimg->layer = img->layer;
 365
 366    return TRUE;
 367 }
 368
 369 static int
 370 dri_get_param(struct st_manager *smapi,
 371               enum st_manager_param param)
 372 {
 373    struct dri_screen *screen = (struct dri_screen *)smapi;
 374
 375    switch(param) {
 376    case ST_MANAGER_BROKEN_INVALIDATE:
 377       return screen->broken_invalidate;
 378    default:
 379       return 0;
 380    }
 381 }
 382
 383 static void
 384 dri_destroy_option_cache(struct dri_screen * screen)
 385 {
 386    int i;
 387
 388    if (screen->optionCache.info) {
 389       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 390          free(screen->optionCache.info[i].name);
 391          free(screen->optionCache.info[i].ranges);
 392       }
 393       free(screen->optionCache.info);
 394    }
 395
 396    free(screen->optionCache.values);
 397
 398    /* Default values are copied to screen->optionCache->values in
 399     * initOptionCache. The info field, however, is a pointer copy, so don't free
 400     * that twice.
 401     */
 402    free(screen->optionCacheDefaults.values);
 403 }
 404
 405 void
 406 dri_destroy_screen_helper(struct dri_screen * screen)
 407 {
 408    if (screen->st_api && screen->st_api->destroy)
 409       screen->st_api->destroy(screen->st_api);
 410
 411    if (screen->base.screen)
 412       screen->base.screen->destroy(screen->base.screen);
 413
 414    dri_destroy_option_cache(screen);
 415    mtx_destroy(&screen->opencl_func_mutex);
 416 }
 417
 418 void
 419 dri_destroy_screen(__DRIscreen * sPriv)
 420 {
 421    struct dri_screen *screen = dri_screen(sPriv);
 422
 423    dri_destroy_screen_helper(screen);
 424
 425    pipe_loader_release(&screen->dev, 1);
 426
 427    free(screen);
 428    sPriv->driverPrivate = NULL;
 429    sPriv->extensions = NULL;
 430 }
 431
 432 static void
 433 dri_postprocessing_init(struct dri_screen *screen)
 434 {
 435    unsigned i;
 436
 437    for (i = 0; i < PP_FILTERS; i++) {
 438       screen->pp_enabled[i] = driQueryOptioni(&screen->optionCache,
 439                                               pp_filters[i].name);
 440    }
 441 }
 442
 443 static void
 444 dri_set_background_context(struct st_context_iface *st)
 445 {
 446    struct dri_context *ctx = (struct dri_context *)st->st_manager_private;
 447    const __DRIbackgroundCallableExtension *backgroundCallable =
 448       ctx->sPriv->dri2.backgroundCallable;
 449
 450    /* Note: Mesa will only call this function if GL multithreading is enabled
 451     * We only do that if the loader exposed the __DRI_BACKGROUND_CALLABLE
 452     * extension. So we know that backgroundCallable is not NULL.
 453     */
 454    assert(backgroundCallable);
 455    backgroundCallable->setBackgroundContext(ctx->cPriv->loaderPrivate);
 456 }
 457
 458 const __DRIconfig **
 459 dri_init_screen_helper(struct dri_screen *screen,
 460                        struct pipe_screen *pscreen,
 461                        const char* driver_name)
 462 {
 463    screen->base.screen = pscreen;
 464    screen->base.get_egl_image = dri_get_egl_image;
 465    screen->base.get_param = dri_get_param;
 466    screen->base.set_background_context = dri_set_background_context;
 467
 468    screen->st_api = st_gl_api_create();
 469    if (!screen->st_api)
 470       return NULL;
 471
 472    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 473       screen->target = PIPE_TEXTURE_2D;
 474    else
 475       screen->target = PIPE_TEXTURE_RECT;
 476
 477    driParseOptionInfo(&screen->optionCacheDefaults, gallium_config_options.xml);
 478
 479    driParseConfigFiles(&screen->optionCache,
 480                        &screen->optionCacheDefaults,
 481                        screen->sPriv->myNum,
 482                        driver_name);
 483
 484    dri_fill_st_options(screen);
 485
 486    /* Handle force_s3tc_enable. */
 487    if (!util_format_s3tc_enabled && screen->options.force_s3tc_enable) {
 488       /* Ensure libtxc_dxtn has been loaded if available.
 489        * Forcing S3TC on before calling this would prevent loading
 490        * the library.
 491        * This is just a precaution, the driver should have called it
 492        * already.
 493        */
 494       util_format_s3tc_init();
 495
 496       util_format_s3tc_enabled = TRUE;
 497    }
 498
 499    dri_postprocessing_init(screen);
 500
 501    screen->st_api->query_versions(screen->st_api, &screen->base,
 502                                   &screen->options,
 503                                   &screen->sPriv->max_gl_core_version,
 504                                   &screen->sPriv->max_gl_compat_version,
 505                                   &screen->sPriv->max_gl_es1_version,
 506                                   &screen->sPriv->max_gl_es2_version);
 507
 508    return dri_fill_in_modes(screen);
 509 }
 510
 511 /* vim: set sw=3 ts=8 sts=3 expandtab: */