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_GLSL_BUILTIN_VARIABLE_REDECLARATION("false")
  79          DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION("false")
  80          DRI_CONF_FORCE_GLSL_ABS_SQRT("false")
  81       DRI_CONF_SECTION_END
  82
  83       DRI_CONF_SECTION_MISCELLANEOUS
  84          DRI_CONF_ALWAYS_HAVE_DEPTH_BUFFER("false")
  85          DRI_CONF_GLSL_ZERO_INIT("false")
  86       DRI_CONF_SECTION_END
  87    DRI_CONF_END
  88 };
  89
  90 #define false 0
  91
  92 static void
  93 dri_fill_st_options(struct dri_screen *screen)
  94 {
  95    struct st_config_options *options = &screen->options;
  96    const struct driOptionCache *optionCache = &screen->optionCache;
  97
  98    options->disable_blend_func_extended =
  99       driQueryOptionb(optionCache, "disable_blend_func_extended");
 100    options->disable_glsl_line_continuations =
 101       driQueryOptionb(optionCache, "disable_glsl_line_continuations");
 102    options->disable_shader_bit_encoding =
 103       driQueryOptionb(optionCache, "disable_shader_bit_encoding");
 104    options->force_glsl_extensions_warn =
 105       driQueryOptionb(optionCache, "force_glsl_extensions_warn");
 106    options->force_glsl_version =
 107       driQueryOptioni(optionCache, "force_glsl_version");
 108    options->force_s3tc_enable =
 109       driQueryOptionb(optionCache, "force_s3tc_enable");
 110    options->allow_glsl_extension_directive_midshader =
 111       driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
 112    options->allow_glsl_builtin_variable_redeclaration =
 113       driQueryOptionb(optionCache, "allow_glsl_builtin_variable_redeclaration");
 114    options->allow_higher_compat_version =
 115       driQueryOptionb(optionCache, "allow_higher_compat_version");
 116    options->glsl_zero_init = driQueryOptionb(optionCache, "glsl_zero_init");
 117    options->force_glsl_abs_sqrt =
 118       driQueryOptionb(optionCache, "force_glsl_abs_sqrt");
 119
 120    driComputeOptionsSha1(optionCache, options->config_options_sha1);
 121 }
 122
 123 static const __DRIconfig **
 124 dri_fill_in_modes(struct dri_screen *screen)
 125 {
 126    static const mesa_format mesa_formats[] = {
 127       MESA_FORMAT_B8G8R8A8_UNORM,
 128       MESA_FORMAT_B8G8R8X8_UNORM,
 129       MESA_FORMAT_B8G8R8A8_SRGB,
 130       MESA_FORMAT_B8G8R8X8_SRGB,
 131       MESA_FORMAT_B5G6R5_UNORM,
 132    };
 133    static const enum pipe_format pipe_formats[] = {
 134       PIPE_FORMAT_BGRA8888_UNORM,
 135       PIPE_FORMAT_BGRX8888_UNORM,
 136       PIPE_FORMAT_BGRA8888_SRGB,
 137       PIPE_FORMAT_BGRX8888_SRGB,
 138       PIPE_FORMAT_B5G6R5_UNORM,
 139    };
 140    mesa_format format;
 141    __DRIconfig **configs = NULL;
 142    uint8_t depth_bits_array[5];
 143    uint8_t stencil_bits_array[5];
 144    unsigned depth_buffer_factor;
 145    unsigned msaa_samples_max;
 146    unsigned i;
 147    struct pipe_screen *p_screen = screen->base.screen;
 148    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 149    boolean mixed_color_depth;
 150
 151    static const GLenum back_buffer_modes[] = {
 152       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 153    };
 154
 155    if (driQueryOptionb(&screen->optionCache, "always_have_depth_buffer")) {
 156       /* all visuals will have a depth buffer */
 157       depth_buffer_factor = 0;
 158    }
 159    else {
 160       depth_bits_array[0] = 0;
 161       stencil_bits_array[0] = 0;
 162       depth_buffer_factor = 1;
 163    }
 164
 165    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 166       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 167
 168    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 169                                             PIPE_TEXTURE_2D, 0,
 170                                             PIPE_BIND_DEPTH_STENCIL);
 171    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 172                                             PIPE_TEXTURE_2D, 0,
 173                                             PIPE_BIND_DEPTH_STENCIL);
 174    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 175                                             PIPE_TEXTURE_2D, 0,
 176                                             PIPE_BIND_DEPTH_STENCIL);
 177    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 178                                             PIPE_TEXTURE_2D, 0,
 179                                             PIPE_BIND_DEPTH_STENCIL);
 180    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 181                                           PIPE_TEXTURE_2D, 0,
 182                                           PIPE_BIND_DEPTH_STENCIL);
 183    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 184                                           PIPE_TEXTURE_2D, 0,
 185                                           PIPE_BIND_DEPTH_STENCIL);
 186
 187    if (pf_z16) {
 188       depth_bits_array[depth_buffer_factor] = 16;
 189       stencil_bits_array[depth_buffer_factor++] = 0;
 190    }
 191    if (pf_x8z24 || pf_z24x8) {
 192       depth_bits_array[depth_buffer_factor] = 24;
 193       stencil_bits_array[depth_buffer_factor++] = 0;
 194       screen->d_depth_bits_last = pf_x8z24;
 195    }
 196    if (pf_s8z24 || pf_z24s8) {
 197       depth_bits_array[depth_buffer_factor] = 24;
 198       stencil_bits_array[depth_buffer_factor++] = 8;
 199       screen->sd_depth_bits_last = pf_s8z24;
 200    }
 201    if (pf_z32) {
 202       depth_bits_array[depth_buffer_factor] = 32;
 203       stencil_bits_array[depth_buffer_factor++] = 0;
 204    }
 205
 206    mixed_color_depth =
 207       p_screen->get_param(p_screen, PIPE_CAP_MIXED_COLOR_DEPTH_BITS);
 208
 209    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 210
 211    /* Add configs. */
 212    for (format = 0; format < ARRAY_SIZE(mesa_formats); format++) {
 213       __DRIconfig **new_configs = NULL;
 214       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 215       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 216
 217       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 218                                          PIPE_TEXTURE_2D, 0,
 219                                          PIPE_BIND_RENDER_TARGET))
 220          continue;
 221
 222       for (i = 1; i <= msaa_samples_max; i++) {
 223          int samples = i > 1 ? i : 0;
 224
 225          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 226                                            PIPE_TEXTURE_2D, samples,
 227                                            PIPE_BIND_RENDER_TARGET)) {
 228             msaa_modes[num_msaa_modes++] = samples;
 229          }
 230       }
 231
 232       if (num_msaa_modes) {
 233          /* Single-sample configs with an accumulation buffer. */
 234          new_configs = driCreateConfigs(mesa_formats[format],
 235                                         depth_bits_array, stencil_bits_array,
 236                                         depth_buffer_factor, back_buffer_modes,
 237                                         ARRAY_SIZE(back_buffer_modes),
 238                                         msaa_modes, 1,
 239                                         GL_TRUE, !mixed_color_depth);
 240          configs = driConcatConfigs(configs, new_configs);
 241
 242          /* Multi-sample configs without an accumulation buffer. */
 243          if (num_msaa_modes > 1) {
 244             new_configs = driCreateConfigs(mesa_formats[format],
 245                                            depth_bits_array, stencil_bits_array,
 246                                            depth_buffer_factor, back_buffer_modes,
 247                                            ARRAY_SIZE(back_buffer_modes),
 248                                            msaa_modes+1, num_msaa_modes-1,
 249                                            GL_FALSE, !mixed_color_depth);
 250             configs = driConcatConfigs(configs, new_configs);
 251          }
 252       }
 253    }
 254
 255    if (configs == NULL) {
 256       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 257       return NULL;
 258    }
 259
 260    return (const __DRIconfig **)configs;
 261 }
 262
 263 /**
 264  * Roughly the converse of dri_fill_in_modes.
 265  */
 266 void
 267 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 268                    const struct gl_config *mode)
 269 {
 270    memset(stvis, 0, sizeof(*stvis));
 271
 272    if (!mode)
 273       return;
 274
 275    if (mode->redBits == 8) {
 276       if (mode->alphaBits == 8)
 277          if (mode->sRGBCapable)
 278             stvis->color_format = PIPE_FORMAT_BGRA8888_SRGB;
 279          else
 280             stvis->color_format = PIPE_FORMAT_BGRA8888_UNORM;
 281       else
 282          if (mode->sRGBCapable)
 283             stvis->color_format = PIPE_FORMAT_BGRX8888_SRGB;
 284          else
 285             stvis->color_format = PIPE_FORMAT_BGRX8888_UNORM;
 286    } else {
 287       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 288    }
 289
 290    if (mode->sampleBuffers) {
 291       stvis->samples = mode->samples;
 292    }
 293
 294    switch (mode->depthBits) {
 295    default:
 296    case 0:
 297       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 298       break;
 299    case 16:
 300       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 301       break;
 302    case 24:
 303       if (mode->stencilBits == 0) {
 304          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 305                                           PIPE_FORMAT_Z24X8_UNORM:
 306                                           PIPE_FORMAT_X8Z24_UNORM;
 307       } else {
 308          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 309                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 310                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 311       }
 312       break;
 313    case 32:
 314       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 315       break;
 316    }
 317
 318    stvis->accum_format = (mode->haveAccumBuffer) ?
 319       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 320
 321    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 322    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 323    if (mode->doubleBufferMode) {
 324       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 325       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 326    }
 327    if (mode->stereoMode) {
 328       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 329       if (mode->doubleBufferMode)
 330          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 331    }
 332
 333    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 334       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 335    /* let the state tracker allocate the accum buffer */
 336 }
 337
 338 static boolean
 339 dri_get_egl_image(struct st_manager *smapi,
 340                   void *egl_image,
 341                   struct st_egl_image *stimg)
 342 {
 343    struct dri_screen *screen = (struct dri_screen *)smapi;
 344    __DRIimage *img = NULL;
 345
 346    if (screen->lookup_egl_image) {
 347       img = screen->lookup_egl_image(screen, egl_image);
 348    }
 349
 350    if (!img)
 351       return FALSE;
 352
 353    stimg->texture = NULL;
 354    pipe_resource_reference(&stimg->texture, img->texture);
 355    switch (img->dri_components) {
 356    case __DRI_IMAGE_COMPONENTS_Y_U_V:
 357       stimg->format = PIPE_FORMAT_IYUV;
 358       break;
 359    case __DRI_IMAGE_COMPONENTS_Y_UV:
 360       stimg->format = PIPE_FORMAT_NV12;
 361       break;
 362    default:
 363       stimg->format = img->texture->format;
 364       break;
 365    }
 366    stimg->level = img->level;
 367    stimg->layer = img->layer;
 368
 369    return TRUE;
 370 }
 371
 372 static int
 373 dri_get_param(struct st_manager *smapi,
 374               enum st_manager_param param)
 375 {
 376    struct dri_screen *screen = (struct dri_screen *)smapi;
 377
 378    switch(param) {
 379    case ST_MANAGER_BROKEN_INVALIDATE:
 380       return screen->broken_invalidate;
 381    default:
 382       return 0;
 383    }
 384 }
 385
 386 static void
 387 dri_destroy_option_cache(struct dri_screen * screen)
 388 {
 389    int i;
 390
 391    if (screen->optionCache.info) {
 392       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 393          free(screen->optionCache.info[i].name);
 394          free(screen->optionCache.info[i].ranges);
 395       }
 396       free(screen->optionCache.info);
 397    }
 398
 399    free(screen->optionCache.values);
 400
 401    /* Default values are copied to screen->optionCache->values in
 402     * initOptionCache. The info field, however, is a pointer copy, so don't free
 403     * that twice.
 404     */
 405    free(screen->optionCacheDefaults.values);
 406 }
 407
 408 void
 409 dri_destroy_screen_helper(struct dri_screen * screen)
 410 {
 411    if (screen->st_api && screen->st_api->destroy)
 412       screen->st_api->destroy(screen->st_api);
 413
 414    if (screen->base.screen)
 415       screen->base.screen->destroy(screen->base.screen);
 416
 417    dri_destroy_option_cache(screen);
 418    mtx_destroy(&screen->opencl_func_mutex);
 419 }
 420
 421 void
 422 dri_destroy_screen(__DRIscreen * sPriv)
 423 {
 424    struct dri_screen *screen = dri_screen(sPriv);
 425
 426    dri_destroy_screen_helper(screen);
 427
 428    pipe_loader_release(&screen->dev, 1);
 429
 430    free(screen);
 431    sPriv->driverPrivate = NULL;
 432    sPriv->extensions = NULL;
 433 }
 434
 435 static void
 436 dri_postprocessing_init(struct dri_screen *screen)
 437 {
 438    unsigned i;
 439
 440    for (i = 0; i < PP_FILTERS; i++) {
 441       screen->pp_enabled[i] = driQueryOptioni(&screen->optionCache,
 442                                               pp_filters[i].name);
 443    }
 444 }
 445
 446 static void
 447 dri_set_background_context(struct st_context_iface *st)
 448 {
 449    struct dri_context *ctx = (struct dri_context *)st->st_manager_private;
 450    const __DRIbackgroundCallableExtension *backgroundCallable =
 451       ctx->sPriv->dri2.backgroundCallable;
 452
 453    /* Note: Mesa will only call this function if GL multithreading is enabled
 454     * We only do that if the loader exposed the __DRI_BACKGROUND_CALLABLE
 455     * extension. So we know that backgroundCallable is not NULL.
 456     */
 457    assert(backgroundCallable);
 458    backgroundCallable->setBackgroundContext(ctx->cPriv->loaderPrivate);
 459 }
 460
 461 const __DRIconfig **
 462 dri_init_screen_helper(struct dri_screen *screen,
 463                        struct pipe_screen *pscreen,
 464                        const char* driver_name)
 465 {
 466    screen->base.screen = pscreen;
 467    screen->base.get_egl_image = dri_get_egl_image;
 468    screen->base.get_param = dri_get_param;
 469    screen->base.set_background_context = dri_set_background_context;
 470
 471    screen->st_api = st_gl_api_create();
 472    if (!screen->st_api)
 473       return NULL;
 474
 475    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 476       screen->target = PIPE_TEXTURE_2D;
 477    else
 478       screen->target = PIPE_TEXTURE_RECT;
 479
 480    driParseOptionInfo(&screen->optionCacheDefaults, gallium_config_options.xml);
 481
 482    driParseConfigFiles(&screen->optionCache,
 483                        &screen->optionCacheDefaults,
 484                        screen->sPriv->myNum,
 485                        driver_name);
 486
 487    dri_fill_st_options(screen);
 488
 489    /* Handle force_s3tc_enable. */
 490    if (!util_format_s3tc_enabled && screen->options.force_s3tc_enable) {
 491       /* Ensure libtxc_dxtn has been loaded if available.
 492        * Forcing S3TC on before calling this would prevent loading
 493        * the library.
 494        * This is just a precaution, the driver should have called it
 495        * already.
 496        */
 497       util_format_s3tc_init();
 498
 499       util_format_s3tc_enabled = TRUE;
 500    }
 501
 502    dri_postprocessing_init(screen);
 503
 504    screen->st_api->query_versions(screen->st_api, &screen->base,
 505                                   &screen->options,
 506                                   &screen->sPriv->max_gl_core_version,
 507                                   &screen->sPriv->max_gl_compat_version,
 508                                   &screen->sPriv->max_gl_es1_version,
 509                                   &screen->sPriv->max_gl_es2_version);
 510
 511    return dri_fill_in_modes(screen);
 512 }
 513
 514 /* vim: set sw=3 ts=8 sts=3 expandtab: */