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_B8G8R8A8_UNORM,
 108       MESA_FORMAT_B8G8R8X8_UNORM,
 109       MESA_FORMAT_B8G8R8A8_SRGB,
 110       MESA_FORMAT_B8G8R8X8_SRGB,
 111       MESA_FORMAT_B5G6R5_UNORM,
 112    };
 113    static const enum pipe_format pipe_formats[] = {
 114       PIPE_FORMAT_BGRA8888_UNORM,
 115       PIPE_FORMAT_BGRX8888_UNORM,
 116       PIPE_FORMAT_BGRA8888_SRGB,
 117       PIPE_FORMAT_BGRX8888_SRGB,
 118       PIPE_FORMAT_B5G6R5_UNORM,
 119    };
 120    mesa_format format;
 121    __DRIconfig **configs = NULL;
 122    uint8_t depth_bits_array[5];
 123    uint8_t stencil_bits_array[5];
 124    unsigned depth_buffer_factor;
 125    unsigned msaa_samples_max;
 126    unsigned i;
 127    struct pipe_screen *p_screen = screen->base.screen;
 128    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 129
 130    static const GLenum back_buffer_modes[] = {
 131       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 132    };
 133
 134    if (driQueryOptionb(&screen->optionCache, "always_have_depth_buffer")) {
 135       /* all visuals will have a depth buffer */
 136       depth_buffer_factor = 0;
 137    }
 138    else {
 139       depth_bits_array[0] = 0;
 140       stencil_bits_array[0] = 0;
 141       depth_buffer_factor = 1;
 142    }
 143
 144    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 145       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 146
 147    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 148                                             PIPE_TEXTURE_2D, 0,
 149                                             PIPE_BIND_DEPTH_STENCIL);
 150    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 151                                             PIPE_TEXTURE_2D, 0,
 152                                             PIPE_BIND_DEPTH_STENCIL);
 153    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 154                                             PIPE_TEXTURE_2D, 0,
 155                                             PIPE_BIND_DEPTH_STENCIL);
 156    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 157                                             PIPE_TEXTURE_2D, 0,
 158                                             PIPE_BIND_DEPTH_STENCIL);
 159    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 160                                           PIPE_TEXTURE_2D, 0,
 161                                           PIPE_BIND_DEPTH_STENCIL);
 162    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 163                                           PIPE_TEXTURE_2D, 0,
 164                                           PIPE_BIND_DEPTH_STENCIL);
 165
 166    if (pf_z16) {
 167       depth_bits_array[depth_buffer_factor] = 16;
 168       stencil_bits_array[depth_buffer_factor++] = 0;
 169    }
 170    if (pf_x8z24 || pf_z24x8) {
 171       depth_bits_array[depth_buffer_factor] = 24;
 172       stencil_bits_array[depth_buffer_factor++] = 0;
 173       screen->d_depth_bits_last = pf_x8z24;
 174    }
 175    if (pf_s8z24 || pf_z24s8) {
 176       depth_bits_array[depth_buffer_factor] = 24;
 177       stencil_bits_array[depth_buffer_factor++] = 8;
 178       screen->sd_depth_bits_last = pf_s8z24;
 179    }
 180    if (pf_z32) {
 181       depth_bits_array[depth_buffer_factor] = 32;
 182       stencil_bits_array[depth_buffer_factor++] = 0;
 183    }
 184
 185    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 186
 187    /* Add configs. */
 188    for (format = 0; format < ARRAY_SIZE(mesa_formats); format++) {
 189       __DRIconfig **new_configs = NULL;
 190       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 191       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 192
 193       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 194                                          PIPE_TEXTURE_2D, 0,
 195                                          PIPE_BIND_RENDER_TARGET))
 196          continue;
 197
 198       for (i = 1; i <= msaa_samples_max; i++) {
 199          int samples = i > 1 ? i : 0;
 200
 201          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 202                                            PIPE_TEXTURE_2D, samples,
 203                                            PIPE_BIND_RENDER_TARGET)) {
 204             msaa_modes[num_msaa_modes++] = samples;
 205          }
 206       }
 207
 208       if (num_msaa_modes) {
 209          /* Single-sample configs with an accumulation buffer. */
 210          new_configs = driCreateConfigs(mesa_formats[format],
 211                                         depth_bits_array, stencil_bits_array,
 212                                         depth_buffer_factor, back_buffer_modes,
 213                                         ARRAY_SIZE(back_buffer_modes),
 214                                         msaa_modes, 1,
 215                                         GL_TRUE);
 216          configs = driConcatConfigs(configs, new_configs);
 217
 218          /* Multi-sample configs without an accumulation buffer. */
 219          if (num_msaa_modes > 1) {
 220             new_configs = driCreateConfigs(mesa_formats[format],
 221                                            depth_bits_array, stencil_bits_array,
 222                                            depth_buffer_factor, back_buffer_modes,
 223                                            ARRAY_SIZE(back_buffer_modes),
 224                                            msaa_modes+1, num_msaa_modes-1,
 225                                            GL_FALSE);
 226             configs = driConcatConfigs(configs, new_configs);
 227          }
 228       }
 229    }
 230
 231    if (configs == NULL) {
 232       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 233       return NULL;
 234    }
 235
 236    return (const __DRIconfig **)configs;
 237 }
 238
 239 /**
 240  * Roughly the converse of dri_fill_in_modes.
 241  */
 242 void
 243 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 244                    const struct gl_config *mode)
 245 {
 246    memset(stvis, 0, sizeof(*stvis));
 247
 248    if (!mode)
 249       return;
 250
 251    if (mode->redBits == 8) {
 252       if (mode->alphaBits == 8)
 253          if (mode->sRGBCapable)
 254             stvis->color_format = PIPE_FORMAT_BGRA8888_SRGB;
 255          else
 256             stvis->color_format = PIPE_FORMAT_BGRA8888_UNORM;
 257       else
 258          if (mode->sRGBCapable)
 259             stvis->color_format = PIPE_FORMAT_BGRX8888_SRGB;
 260          else
 261             stvis->color_format = PIPE_FORMAT_BGRX8888_UNORM;
 262    } else {
 263       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 264    }
 265
 266    if (mode->sampleBuffers) {
 267       stvis->samples = mode->samples;
 268    }
 269
 270    switch (mode->depthBits) {
 271    default:
 272    case 0:
 273       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 274       break;
 275    case 16:
 276       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 277       break;
 278    case 24:
 279       if (mode->stencilBits == 0) {
 280          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 281                                           PIPE_FORMAT_Z24X8_UNORM:
 282                                           PIPE_FORMAT_X8Z24_UNORM;
 283       } else {
 284          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 285                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 286                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 287       }
 288       break;
 289    case 32:
 290       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 291       break;
 292    }
 293
 294    stvis->accum_format = (mode->haveAccumBuffer) ?
 295       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 296
 297    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 298    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 299    if (mode->doubleBufferMode) {
 300       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 301       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 302    }
 303    if (mode->stereoMode) {
 304       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 305       if (mode->doubleBufferMode)
 306          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 307    }
 308
 309    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 310       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 311    /* let the state tracker allocate the accum buffer */
 312 }
 313
 314 static boolean
 315 dri_get_egl_image(struct st_manager *smapi,
 316                   void *egl_image,
 317                   struct st_egl_image *stimg)
 318 {
 319    struct dri_screen *screen = (struct dri_screen *)smapi;
 320    __DRIimage *img = NULL;
 321
 322    if (screen->lookup_egl_image) {
 323       img = screen->lookup_egl_image(screen, egl_image);
 324    }
 325
 326    if (!img)
 327       return FALSE;
 328
 329    stimg->texture = NULL;
 330    pipe_resource_reference(&stimg->texture, img->texture);
 331    stimg->level = img->level;
 332    stimg->layer = img->layer;
 333
 334    return TRUE;
 335 }
 336
 337 static int
 338 dri_get_param(struct st_manager *smapi,
 339               enum st_manager_param param)
 340 {
 341    struct dri_screen *screen = (struct dri_screen *)smapi;
 342
 343    switch(param) {
 344    case ST_MANAGER_BROKEN_INVALIDATE:
 345       return screen->broken_invalidate;
 346    default:
 347       return 0;
 348    }
 349 }
 350
 351 static void
 352 dri_destroy_option_cache(struct dri_screen * screen)
 353 {
 354    int i;
 355
 356    if (screen->optionCache.info) {
 357       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 358          free(screen->optionCache.info[i].name);
 359          free(screen->optionCache.info[i].ranges);
 360       }
 361       free(screen->optionCache.info);
 362    }
 363
 364    free(screen->optionCache.values);
 365
 366    /* Default values are copied to screen->optionCache->values in
 367     * initOptionCache. The info field, however, is a pointer copy, so don't free
 368     * that twice.
 369     */
 370    free(screen->optionCacheDefaults.values);
 371 }
 372
 373 void
 374 dri_destroy_screen_helper(struct dri_screen * screen)
 375 {
 376    if (screen->st_api && screen->st_api->destroy)
 377       screen->st_api->destroy(screen->st_api);
 378
 379    if (screen->base.screen)
 380       screen->base.screen->destroy(screen->base.screen);
 381
 382    dri_destroy_option_cache(screen);
 383    pipe_mutex_destroy(screen->opencl_func_mutex);
 384 }
 385
 386 void
 387 dri_destroy_screen(__DRIscreen * sPriv)
 388 {
 389    struct dri_screen *screen = dri_screen(sPriv);
 390
 391    dri_destroy_screen_helper(screen);
 392
 393 #if !GALLIUM_STATIC_TARGETS
 394    pipe_loader_release(&screen->dev, 1);
 395 #endif // !GALLIUM_STATIC_TARGETS
 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    if (!screen->base.screen) {
 420       debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
 421       return NULL;
 422    }
 423
 424    screen->base.get_egl_image = dri_get_egl_image;
 425    screen->base.get_param = dri_get_param;
 426
 427    screen->st_api = st_gl_api_create();
 428    if (!screen->st_api)
 429       return NULL;
 430
 431    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 432       screen->target = PIPE_TEXTURE_2D;
 433    else
 434       screen->target = PIPE_TEXTURE_RECT;
 435
 436    driParseOptionInfo(&screen->optionCacheDefaults, gallium_config_options.xml);
 437
 438    driParseConfigFiles(&screen->optionCache,
 439                        &screen->optionCacheDefaults,
 440                        screen->sPriv->myNum,
 441                        driver_name);
 442
 443    dri_fill_st_options(&screen->options, &screen->optionCache);
 444
 445    /* Handle force_s3tc_enable. */
 446    if (!util_format_s3tc_enabled && screen->options.force_s3tc_enable) {
 447       /* Ensure libtxc_dxtn has been loaded if available.
 448        * Forcing S3TC on before calling this would prevent loading
 449        * the library.
 450        * This is just a precaution, the driver should have called it
 451        * already.
 452        */
 453       util_format_s3tc_init();
 454
 455       util_format_s3tc_enabled = TRUE;
 456    }
 457
 458    dri_postprocessing_init(screen);
 459
 460    screen->st_api->query_versions(screen->st_api, &screen->base,
 461                                   &screen->options,
 462                                   &screen->sPriv->max_gl_core_version,
 463                                   &screen->sPriv->max_gl_compat_version,
 464                                   &screen->sPriv->max_gl_es1_version,
 465                                   &screen->sPriv->max_gl_es2_version);
 466
 467    return dri_fill_in_modes(screen);
 468 }
 469
 470 /* vim: set sw=3 ts=8 sts=3 expandtab: */