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