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_SECTION_END
  78    DRI_CONF_END
  79 };
  80
  81 #define false 0
  82
  83 static void
  84 dri_fill_st_options(struct st_config_options *options,
  85                     const struct driOptionCache * optionCache)
  86 {
  87    options->disable_blend_func_extended =
  88       driQueryOptionb(optionCache, "disable_blend_func_extended");
  89    options->disable_glsl_line_continuations =
  90       driQueryOptionb(optionCache, "disable_glsl_line_continuations");
  91    options->disable_shader_bit_encoding =
  92       driQueryOptionb(optionCache, "disable_shader_bit_encoding");
  93    options->force_glsl_extensions_warn =
  94       driQueryOptionb(optionCache, "force_glsl_extensions_warn");
  95    options->force_glsl_version =
  96       driQueryOptioni(optionCache, "force_glsl_version");
  97    options->force_s3tc_enable =
  98       driQueryOptionb(optionCache, "force_s3tc_enable");
  99    options->allow_glsl_extension_directive_midshader =
 100       driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
 101 }
 102
 103 static const __DRIconfig **
 104 dri_fill_in_modes(struct dri_screen *screen)
 105 {
 106    static const mesa_format mesa_formats[] = {
 107       MESA_FORMAT_R8G8B8A8_UNORM,
 108       MESA_FORMAT_R8G8B8X8_UNORM,
 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_RGBA8888_UNORM,
 117       PIPE_FORMAT_RGBX8888_UNORM,
 118       PIPE_FORMAT_BGRA8888_UNORM,
 119       PIPE_FORMAT_BGRX8888_UNORM,
 120       PIPE_FORMAT_BGRA8888_SRGB,
 121       PIPE_FORMAT_BGRX8888_SRGB,
 122       PIPE_FORMAT_B5G6R5_UNORM,
 123    };
 124    mesa_format format;
 125    __DRIconfig **configs = NULL;
 126    uint8_t depth_bits_array[5];
 127    uint8_t stencil_bits_array[5];
 128    unsigned depth_buffer_factor;
 129    unsigned msaa_samples_max;
 130    unsigned i;
 131    struct pipe_screen *p_screen = screen->base.screen;
 132    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 133
 134    static const GLenum back_buffer_modes[] = {
 135       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 136    };
 137
 138    if (driQueryOptionb(&screen->optionCache, "always_have_depth_buffer")) {
 139       /* all visuals will have a depth buffer */
 140       depth_buffer_factor = 0;
 141    }
 142    else {
 143       depth_bits_array[0] = 0;
 144       stencil_bits_array[0] = 0;
 145       depth_buffer_factor = 1;
 146    }
 147
 148    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 149       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 150
 151    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 152                                             PIPE_TEXTURE_2D, 0,
 153                                             PIPE_BIND_DEPTH_STENCIL);
 154    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 155                                             PIPE_TEXTURE_2D, 0,
 156                                             PIPE_BIND_DEPTH_STENCIL);
 157    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 158                                             PIPE_TEXTURE_2D, 0,
 159                                             PIPE_BIND_DEPTH_STENCIL);
 160    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 161                                             PIPE_TEXTURE_2D, 0,
 162                                             PIPE_BIND_DEPTH_STENCIL);
 163    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 164                                           PIPE_TEXTURE_2D, 0,
 165                                           PIPE_BIND_DEPTH_STENCIL);
 166    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 167                                           PIPE_TEXTURE_2D, 0,
 168                                           PIPE_BIND_DEPTH_STENCIL);
 169
 170    if (pf_z16) {
 171       depth_bits_array[depth_buffer_factor] = 16;
 172       stencil_bits_array[depth_buffer_factor++] = 0;
 173    }
 174    if (pf_x8z24 || pf_z24x8) {
 175       depth_bits_array[depth_buffer_factor] = 24;
 176       stencil_bits_array[depth_buffer_factor++] = 0;
 177       screen->d_depth_bits_last = pf_x8z24;
 178    }
 179    if (pf_s8z24 || pf_z24s8) {
 180       depth_bits_array[depth_buffer_factor] = 24;
 181       stencil_bits_array[depth_buffer_factor++] = 8;
 182       screen->sd_depth_bits_last = pf_s8z24;
 183    }
 184    if (pf_z32) {
 185       depth_bits_array[depth_buffer_factor] = 32;
 186       stencil_bits_array[depth_buffer_factor++] = 0;
 187    }
 188
 189    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 190
 191    /* Add configs. */
 192    for (format = 0; format < ARRAY_SIZE(mesa_formats); format++) {
 193       __DRIconfig **new_configs = NULL;
 194       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 195       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 196
 197       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 198                                          PIPE_TEXTURE_2D, 0,
 199                                          PIPE_BIND_RENDER_TARGET))
 200          continue;
 201
 202       for (i = 1; i <= msaa_samples_max; i++) {
 203          int samples = i > 1 ? i : 0;
 204
 205          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 206                                            PIPE_TEXTURE_2D, samples,
 207                                            PIPE_BIND_RENDER_TARGET)) {
 208             msaa_modes[num_msaa_modes++] = samples;
 209          }
 210       }
 211
 212       if (num_msaa_modes) {
 213          /* Single-sample configs with an accumulation buffer. */
 214          new_configs = driCreateConfigs(mesa_formats[format],
 215                                         depth_bits_array, stencil_bits_array,
 216                                         depth_buffer_factor, back_buffer_modes,
 217                                         ARRAY_SIZE(back_buffer_modes),
 218                                         msaa_modes, 1,
 219                                         GL_TRUE);
 220          configs = driConcatConfigs(configs, new_configs);
 221
 222          /* Multi-sample configs without an accumulation buffer. */
 223          if (num_msaa_modes > 1) {
 224             new_configs = driCreateConfigs(mesa_formats[format],
 225                                            depth_bits_array, stencil_bits_array,
 226                                            depth_buffer_factor, back_buffer_modes,
 227                                            ARRAY_SIZE(back_buffer_modes),
 228                                            msaa_modes+1, num_msaa_modes-1,
 229                                            GL_FALSE);
 230             configs = driConcatConfigs(configs, new_configs);
 231          }
 232       }
 233    }
 234
 235    if (configs == NULL) {
 236       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 237       return NULL;
 238    }
 239
 240    return (const __DRIconfig **)configs;
 241 }
 242
 243 /**
 244  * Roughly the converse of dri_fill_in_modes.
 245  */
 246 void
 247 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 248                    const struct gl_config *mode)
 249 {
 250    memset(stvis, 0, sizeof(*stvis));
 251
 252    if (!mode)
 253       return;
 254
 255    if (mode->redBits == 8) {
 256       if (mode->alphaBits == 8)
 257          if (mode->sRGBCapable)
 258             stvis->color_format = PIPE_FORMAT_BGRA8888_SRGB;
 259          else
 260             stvis->color_format = PIPE_FORMAT_BGRA8888_UNORM;
 261       else
 262          if (mode->sRGBCapable)
 263             stvis->color_format = PIPE_FORMAT_BGRX8888_SRGB;
 264          else
 265             stvis->color_format = PIPE_FORMAT_BGRX8888_UNORM;
 266    } else {
 267       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 268    }
 269
 270    if (mode->sampleBuffers) {
 271       stvis->samples = mode->samples;
 272    }
 273
 274    switch (mode->depthBits) {
 275    default:
 276    case 0:
 277       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 278       break;
 279    case 16:
 280       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 281       break;
 282    case 24:
 283       if (mode->stencilBits == 0) {
 284          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 285                                           PIPE_FORMAT_Z24X8_UNORM:
 286                                           PIPE_FORMAT_X8Z24_UNORM;
 287       } else {
 288          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 289                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 290                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 291       }
 292       break;
 293    case 32:
 294       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 295       break;
 296    }
 297
 298    stvis->accum_format = (mode->haveAccumBuffer) ?
 299       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 300
 301    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 302    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 303    if (mode->doubleBufferMode) {
 304       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 305       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 306    }
 307    if (mode->stereoMode) {
 308       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 309       if (mode->doubleBufferMode)
 310          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 311    }
 312
 313    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 314       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 315    /* let the state tracker allocate the accum buffer */
 316 }
 317
 318 static boolean
 319 dri_get_egl_image(struct st_manager *smapi,
 320                   void *egl_image,
 321                   struct st_egl_image *stimg)
 322 {
 323    struct dri_screen *screen = (struct dri_screen *)smapi;
 324    __DRIimage *img = NULL;
 325
 326    if (screen->lookup_egl_image) {
 327       img = screen->lookup_egl_image(screen, egl_image);
 328    }
 329
 330    if (!img)
 331       return FALSE;
 332
 333    stimg->texture = NULL;
 334    pipe_resource_reference(&stimg->texture, img->texture);
 335    stimg->level = img->level;
 336    stimg->layer = img->layer;
 337
 338    return TRUE;
 339 }
 340
 341 static int
 342 dri_get_param(struct st_manager *smapi,
 343               enum st_manager_param param)
 344 {
 345    struct dri_screen *screen = (struct dri_screen *)smapi;
 346
 347    switch(param) {
 348    case ST_MANAGER_BROKEN_INVALIDATE:
 349       return screen->broken_invalidate;
 350    default:
 351       return 0;
 352    }
 353 }
 354
 355 static void
 356 dri_destroy_option_cache(struct dri_screen * screen)
 357 {
 358    int i;
 359
 360    if (screen->optionCache.info) {
 361       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 362          free(screen->optionCache.info[i].name);
 363          free(screen->optionCache.info[i].ranges);
 364       }
 365       free(screen->optionCache.info);
 366    }
 367
 368    free(screen->optionCache.values);
 369
 370    /* Default values are copied to screen->optionCache->values in
 371     * initOptionCache. The info field, however, is a pointer copy, so don't free
 372     * that twice.
 373     */
 374    free(screen->optionCacheDefaults.values);
 375 }
 376
 377 void
 378 dri_destroy_screen_helper(struct dri_screen * screen)
 379 {
 380    if (screen->st_api && screen->st_api->destroy)
 381       screen->st_api->destroy(screen->st_api);
 382
 383    if (screen->base.screen)
 384       screen->base.screen->destroy(screen->base.screen);
 385
 386    dri_destroy_option_cache(screen);
 387    pipe_mutex_destroy(screen->opencl_func_mutex);
 388 }
 389
 390 void
 391 dri_destroy_screen(__DRIscreen * sPriv)
 392 {
 393    struct dri_screen *screen = dri_screen(sPriv);
 394
 395    dri_destroy_screen_helper(screen);
 396
 397    pipe_loader_release(&screen->dev, 1);
 398
 399    free(screen);
 400    sPriv->driverPrivate = NULL;
 401    sPriv->extensions = NULL;
 402 }
 403
 404 static void
 405 dri_postprocessing_init(struct dri_screen *screen)
 406 {
 407    unsigned i;
 408
 409    for (i = 0; i < PP_FILTERS; i++) {
 410       screen->pp_enabled[i] = driQueryOptioni(&screen->optionCache,
 411                                               pp_filters[i].name);
 412    }
 413 }
 414
 415 const __DRIconfig **
 416 dri_init_screen_helper(struct dri_screen *screen,
 417                        struct pipe_screen *pscreen,
 418                        const char* driver_name)
 419 {
 420    screen->base.screen = pscreen;
 421    screen->base.get_egl_image = dri_get_egl_image;
 422    screen->base.get_param = dri_get_param;
 423
 424    screen->st_api = st_gl_api_create();
 425    if (!screen->st_api)
 426       return NULL;
 427
 428    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 429       screen->target = PIPE_TEXTURE_2D;
 430    else
 431       screen->target = PIPE_TEXTURE_RECT;
 432
 433    driParseOptionInfo(&screen->optionCacheDefaults, gallium_config_options.xml);
 434
 435    driParseConfigFiles(&screen->optionCache,
 436                        &screen->optionCacheDefaults,
 437                        screen->sPriv->myNum,
 438                        driver_name);
 439
 440    dri_fill_st_options(&screen->options, &screen->optionCache);
 441
 442    /* Handle force_s3tc_enable. */
 443    if (!util_format_s3tc_enabled && screen->options.force_s3tc_enable) {
 444       /* Ensure libtxc_dxtn has been loaded if available.
 445        * Forcing S3TC on before calling this would prevent loading
 446        * the library.
 447        * This is just a precaution, the driver should have called it
 448        * already.
 449        */
 450       util_format_s3tc_init();
 451
 452       util_format_s3tc_enabled = TRUE;
 453    }
 454
 455    dri_postprocessing_init(screen);
 456
 457    screen->st_api->query_versions(screen->st_api, &screen->base,
 458                                   &screen->options,
 459                                   &screen->sPriv->max_gl_core_version,
 460                                   &screen->sPriv->max_gl_compat_version,
 461                                   &screen->sPriv->max_gl_es1_version,
 462                                   &screen->sPriv->max_gl_es2_version);
 463
 464    return dri_fill_in_modes(screen);
 465 }
 466
 467 /* vim: set sw=3 ts=8 sts=3 expandtab: */