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_DISABLE_EXT_BUFFER_AGE("false")
  60          DRI_CONF_DISABLE_OML_SYNC_CONTROL("false")
  61       DRI_CONF_SECTION_END
  62
  63       DRI_CONF_SECTION_QUALITY
  64          DRI_CONF_FORCE_S3TC_ENABLE("false")
  65          DRI_CONF_PP_CELSHADE(0)
  66          DRI_CONF_PP_NORED(0)
  67          DRI_CONF_PP_NOGREEN(0)
  68          DRI_CONF_PP_NOBLUE(0)
  69          DRI_CONF_PP_JIMENEZMLAA(0, 0, 32)
  70          DRI_CONF_PP_JIMENEZMLAA_COLOR(0, 0, 32)
  71       DRI_CONF_SECTION_END
  72
  73       DRI_CONF_SECTION_DEBUG
  74          DRI_CONF_FORCE_GLSL_EXTENSIONS_WARN("false")
  75          DRI_CONF_DISABLE_GLSL_LINE_CONTINUATIONS("false")
  76          DRI_CONF_DISABLE_BLEND_FUNC_EXTENDED("false")
  77          DRI_CONF_DISABLE_SHADER_BIT_ENCODING("false")
  78          DRI_CONF_FORCE_GLSL_VERSION(0)
  79          DRI_CONF_ALLOW_GLSL_EXTENSION_DIRECTIVE_MIDSHADER("false")
  80          DRI_CONF_ALLOW_GLSL_BUILTIN_VARIABLE_REDECLARATION("false")
  81          DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION("false")
  82          DRI_CONF_FORCE_GLSL_ABS_SQRT("false")
  83       DRI_CONF_SECTION_END
  84
  85       DRI_CONF_SECTION_MISCELLANEOUS
  86          DRI_CONF_ALWAYS_HAVE_DEPTH_BUFFER("false")
  87          DRI_CONF_GLSL_ZERO_INIT("false")
  88       DRI_CONF_SECTION_END
  89    DRI_CONF_END
  90 };
  91
  92 #define false 0
  93
  94 static void
  95 dri_fill_st_options(struct dri_screen *screen)
  96 {
  97    struct st_config_options *options = &screen->options;
  98    const struct driOptionCache *optionCache = &screen->optionCache;
  99
 100    options->disable_blend_func_extended =
 101       driQueryOptionb(optionCache, "disable_blend_func_extended");
 102    options->disable_glsl_line_continuations =
 103       driQueryOptionb(optionCache, "disable_glsl_line_continuations");
 104    options->disable_shader_bit_encoding =
 105       driQueryOptionb(optionCache, "disable_shader_bit_encoding");
 106    options->force_glsl_extensions_warn =
 107       driQueryOptionb(optionCache, "force_glsl_extensions_warn");
 108    options->force_glsl_version =
 109       driQueryOptioni(optionCache, "force_glsl_version");
 110    options->force_s3tc_enable =
 111       driQueryOptionb(optionCache, "force_s3tc_enable");
 112    options->allow_glsl_extension_directive_midshader =
 113       driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
 114    options->allow_glsl_builtin_variable_redeclaration =
 115       driQueryOptionb(optionCache, "allow_glsl_builtin_variable_redeclaration");
 116    options->allow_higher_compat_version =
 117       driQueryOptionb(optionCache, "allow_higher_compat_version");
 118    options->glsl_zero_init = driQueryOptionb(optionCache, "glsl_zero_init");
 119    options->force_glsl_abs_sqrt =
 120       driQueryOptionb(optionCache, "force_glsl_abs_sqrt");
 121
 122    driComputeOptionsSha1(optionCache, options->config_options_sha1);
 123 }
 124
 125 static const __DRIconfig **
 126 dri_fill_in_modes(struct dri_screen *screen)
 127 {
 128    static const mesa_format mesa_formats[] = {
 129       MESA_FORMAT_B8G8R8A8_UNORM,
 130       MESA_FORMAT_B8G8R8X8_UNORM,
 131       MESA_FORMAT_B8G8R8A8_SRGB,
 132       MESA_FORMAT_B8G8R8X8_SRGB,
 133       MESA_FORMAT_B5G6R5_UNORM,
 134    };
 135    static const enum pipe_format pipe_formats[] = {
 136       PIPE_FORMAT_BGRA8888_UNORM,
 137       PIPE_FORMAT_BGRX8888_UNORM,
 138       PIPE_FORMAT_BGRA8888_SRGB,
 139       PIPE_FORMAT_BGRX8888_SRGB,
 140       PIPE_FORMAT_B5G6R5_UNORM,
 141    };
 142    mesa_format format;
 143    __DRIconfig **configs = NULL;
 144    uint8_t depth_bits_array[5];
 145    uint8_t stencil_bits_array[5];
 146    unsigned depth_buffer_factor;
 147    unsigned msaa_samples_max;
 148    unsigned i;
 149    struct pipe_screen *p_screen = screen->base.screen;
 150    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 151    boolean mixed_color_depth;
 152
 153    static const GLenum back_buffer_modes[] = {
 154       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 155    };
 156
 157    if (driQueryOptionb(&screen->optionCache, "always_have_depth_buffer")) {
 158       /* all visuals will have a depth buffer */
 159       depth_buffer_factor = 0;
 160    }
 161    else {
 162       depth_bits_array[0] = 0;
 163       stencil_bits_array[0] = 0;
 164       depth_buffer_factor = 1;
 165    }
 166
 167    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 168       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 169
 170    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 171                                             PIPE_TEXTURE_2D, 0,
 172                                             PIPE_BIND_DEPTH_STENCIL);
 173    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 174                                             PIPE_TEXTURE_2D, 0,
 175                                             PIPE_BIND_DEPTH_STENCIL);
 176    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 177                                             PIPE_TEXTURE_2D, 0,
 178                                             PIPE_BIND_DEPTH_STENCIL);
 179    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 180                                             PIPE_TEXTURE_2D, 0,
 181                                             PIPE_BIND_DEPTH_STENCIL);
 182    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 183                                           PIPE_TEXTURE_2D, 0,
 184                                           PIPE_BIND_DEPTH_STENCIL);
 185    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 186                                           PIPE_TEXTURE_2D, 0,
 187                                           PIPE_BIND_DEPTH_STENCIL);
 188
 189    if (pf_z16) {
 190       depth_bits_array[depth_buffer_factor] = 16;
 191       stencil_bits_array[depth_buffer_factor++] = 0;
 192    }
 193    if (pf_x8z24 || pf_z24x8) {
 194       depth_bits_array[depth_buffer_factor] = 24;
 195       stencil_bits_array[depth_buffer_factor++] = 0;
 196       screen->d_depth_bits_last = pf_x8z24;
 197    }
 198    if (pf_s8z24 || pf_z24s8) {
 199       depth_bits_array[depth_buffer_factor] = 24;
 200       stencil_bits_array[depth_buffer_factor++] = 8;
 201       screen->sd_depth_bits_last = pf_s8z24;
 202    }
 203    if (pf_z32) {
 204       depth_bits_array[depth_buffer_factor] = 32;
 205       stencil_bits_array[depth_buffer_factor++] = 0;
 206    }
 207
 208    mixed_color_depth =
 209       p_screen->get_param(p_screen, PIPE_CAP_MIXED_COLOR_DEPTH_BITS);
 210
 211    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 212
 213    /* Add configs. */
 214    for (format = 0; format < ARRAY_SIZE(mesa_formats); format++) {
 215       __DRIconfig **new_configs = NULL;
 216       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 217       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 218
 219       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 220                                          PIPE_TEXTURE_2D, 0,
 221                                          PIPE_BIND_RENDER_TARGET))
 222          continue;
 223
 224       for (i = 1; i <= msaa_samples_max; i++) {
 225          int samples = i > 1 ? i : 0;
 226
 227          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 228                                            PIPE_TEXTURE_2D, samples,
 229                                            PIPE_BIND_RENDER_TARGET)) {
 230             msaa_modes[num_msaa_modes++] = samples;
 231          }
 232       }
 233
 234       if (num_msaa_modes) {
 235          /* Single-sample configs with an accumulation buffer. */
 236          new_configs = driCreateConfigs(mesa_formats[format],
 237                                         depth_bits_array, stencil_bits_array,
 238                                         depth_buffer_factor, back_buffer_modes,
 239                                         ARRAY_SIZE(back_buffer_modes),
 240                                         msaa_modes, 1,
 241                                         GL_TRUE, !mixed_color_depth);
 242          configs = driConcatConfigs(configs, new_configs);
 243
 244          /* Multi-sample configs without an accumulation buffer. */
 245          if (num_msaa_modes > 1) {
 246             new_configs = driCreateConfigs(mesa_formats[format],
 247                                            depth_bits_array, stencil_bits_array,
 248                                            depth_buffer_factor, back_buffer_modes,
 249                                            ARRAY_SIZE(back_buffer_modes),
 250                                            msaa_modes+1, num_msaa_modes-1,
 251                                            GL_FALSE, !mixed_color_depth);
 252             configs = driConcatConfigs(configs, new_configs);
 253          }
 254       }
 255    }
 256
 257    if (configs == NULL) {
 258       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 259       return NULL;
 260    }
 261
 262    return (const __DRIconfig **)configs;
 263 }
 264
 265 /**
 266  * Roughly the converse of dri_fill_in_modes.
 267  */
 268 void
 269 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 270                    const struct gl_config *mode)
 271 {
 272    memset(stvis, 0, sizeof(*stvis));
 273
 274    if (!mode)
 275       return;
 276
 277    if (mode->redBits == 8) {
 278       if (mode->alphaBits == 8)
 279          if (mode->sRGBCapable)
 280             stvis->color_format = PIPE_FORMAT_BGRA8888_SRGB;
 281          else
 282             stvis->color_format = PIPE_FORMAT_BGRA8888_UNORM;
 283       else
 284          if (mode->sRGBCapable)
 285             stvis->color_format = PIPE_FORMAT_BGRX8888_SRGB;
 286          else
 287             stvis->color_format = PIPE_FORMAT_BGRX8888_UNORM;
 288    } else {
 289       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 290    }
 291
 292    if (mode->sampleBuffers) {
 293       stvis->samples = mode->samples;
 294    }
 295
 296    switch (mode->depthBits) {
 297    default:
 298    case 0:
 299       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 300       break;
 301    case 16:
 302       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 303       break;
 304    case 24:
 305       if (mode->stencilBits == 0) {
 306          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 307                                           PIPE_FORMAT_Z24X8_UNORM:
 308                                           PIPE_FORMAT_X8Z24_UNORM;
 309       } else {
 310          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 311                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 312                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 313       }
 314       break;
 315    case 32:
 316       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 317       break;
 318    }
 319
 320    stvis->accum_format = (mode->haveAccumBuffer) ?
 321       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 322
 323    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 324    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 325    if (mode->doubleBufferMode) {
 326       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 327       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 328    }
 329    if (mode->stereoMode) {
 330       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 331       if (mode->doubleBufferMode)
 332          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 333    }
 334
 335    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 336       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 337    /* let the state tracker allocate the accum buffer */
 338 }
 339
 340 static boolean
 341 dri_get_egl_image(struct st_manager *smapi,
 342                   void *egl_image,
 343                   struct st_egl_image *stimg)
 344 {
 345    struct dri_screen *screen = (struct dri_screen *)smapi;
 346    __DRIimage *img = NULL;
 347
 348    if (screen->lookup_egl_image) {
 349       img = screen->lookup_egl_image(screen, egl_image);
 350    }
 351
 352    if (!img)
 353       return FALSE;
 354
 355    stimg->texture = NULL;
 356    pipe_resource_reference(&stimg->texture, img->texture);
 357    switch (img->dri_components) {
 358    case __DRI_IMAGE_COMPONENTS_Y_U_V:
 359       stimg->format = PIPE_FORMAT_IYUV;
 360       break;
 361    case __DRI_IMAGE_COMPONENTS_Y_UV:
 362       stimg->format = PIPE_FORMAT_NV12;
 363       break;
 364    default:
 365       stimg->format = img->texture->format;
 366       break;
 367    }
 368    stimg->level = img->level;
 369    stimg->layer = img->layer;
 370
 371    return TRUE;
 372 }
 373
 374 static int
 375 dri_get_param(struct st_manager *smapi,
 376               enum st_manager_param param)
 377 {
 378    struct dri_screen *screen = (struct dri_screen *)smapi;
 379
 380    switch(param) {
 381    case ST_MANAGER_BROKEN_INVALIDATE:
 382       return screen->broken_invalidate;
 383    default:
 384       return 0;
 385    }
 386 }
 387
 388 static void
 389 dri_destroy_option_cache(struct dri_screen * screen)
 390 {
 391    int i;
 392
 393    if (screen->optionCache.info) {
 394       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 395          free(screen->optionCache.info[i].name);
 396          free(screen->optionCache.info[i].ranges);
 397       }
 398       free(screen->optionCache.info);
 399    }
 400
 401    free(screen->optionCache.values);
 402
 403    /* Default values are copied to screen->optionCache->values in
 404     * initOptionCache. The info field, however, is a pointer copy, so don't free
 405     * that twice.
 406     */
 407    free(screen->optionCacheDefaults.values);
 408 }
 409
 410 void
 411 dri_destroy_screen_helper(struct dri_screen * screen)
 412 {
 413    if (screen->st_api && screen->st_api->destroy)
 414       screen->st_api->destroy(screen->st_api);
 415
 416    if (screen->base.screen)
 417       screen->base.screen->destroy(screen->base.screen);
 418
 419    dri_destroy_option_cache(screen);
 420    mtx_destroy(&screen->opencl_func_mutex);
 421 }
 422
 423 void
 424 dri_destroy_screen(__DRIscreen * sPriv)
 425 {
 426    struct dri_screen *screen = dri_screen(sPriv);
 427
 428    dri_destroy_screen_helper(screen);
 429
 430    pipe_loader_release(&screen->dev, 1);
 431
 432    free(screen);
 433    sPriv->driverPrivate = NULL;
 434    sPriv->extensions = NULL;
 435 }
 436
 437 static void
 438 dri_postprocessing_init(struct dri_screen *screen)
 439 {
 440    unsigned i;
 441
 442    for (i = 0; i < PP_FILTERS; i++) {
 443       screen->pp_enabled[i] = driQueryOptioni(&screen->optionCache,
 444                                               pp_filters[i].name);
 445    }
 446 }
 447
 448 static void
 449 dri_set_background_context(struct st_context_iface *st)
 450 {
 451    struct dri_context *ctx = (struct dri_context *)st->st_manager_private;
 452    const __DRIbackgroundCallableExtension *backgroundCallable =
 453       ctx->sPriv->dri2.backgroundCallable;
 454
 455    /* Note: Mesa will only call this function if GL multithreading is enabled
 456     * We only do that if the loader exposed the __DRI_BACKGROUND_CALLABLE
 457     * extension. So we know that backgroundCallable is not NULL.
 458     */
 459    assert(backgroundCallable);
 460    backgroundCallable->setBackgroundContext(ctx->cPriv->loaderPrivate);
 461 }
 462
 463 const __DRIconfig **
 464 dri_init_screen_helper(struct dri_screen *screen,
 465                        struct pipe_screen *pscreen,
 466                        const char* driver_name)
 467 {
 468    screen->base.screen = pscreen;
 469    screen->base.get_egl_image = dri_get_egl_image;
 470    screen->base.get_param = dri_get_param;
 471    screen->base.set_background_context = dri_set_background_context;
 472
 473    screen->st_api = st_gl_api_create();
 474    if (!screen->st_api)
 475       return NULL;
 476
 477    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 478       screen->target = PIPE_TEXTURE_2D;
 479    else
 480       screen->target = PIPE_TEXTURE_RECT;
 481
 482    driParseOptionInfo(&screen->optionCacheDefaults, gallium_config_options.xml);
 483
 484    driParseConfigFiles(&screen->optionCache,
 485                        &screen->optionCacheDefaults,
 486                        screen->sPriv->myNum,
 487                        driver_name);
 488
 489    dri_fill_st_options(screen);
 490
 491    /* Handle force_s3tc_enable. */
 492    if (!util_format_s3tc_enabled && screen->options.force_s3tc_enable) {
 493       /* Ensure libtxc_dxtn has been loaded if available.
 494        * Forcing S3TC on before calling this would prevent loading
 495        * the library.
 496        * This is just a precaution, the driver should have called it
 497        * already.
 498        */
 499       util_format_s3tc_init();
 500
 501       util_format_s3tc_enabled = TRUE;
 502    }
 503
 504    dri_postprocessing_init(screen);
 505
 506    screen->st_api->query_versions(screen->st_api, &screen->base,
 507                                   &screen->options,
 508                                   &screen->sPriv->max_gl_core_version,
 509                                   &screen->sPriv->max_gl_compat_version,
 510                                   &screen->sPriv->max_gl_es1_version,
 511                                   &screen->sPriv->max_gl_es2_version);
 512
 513    return dri_fill_in_modes(screen);
 514 }
 515
 516 /* vim: set sw=3 ts=8 sts=3 expandtab: */