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