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 "vblank.h"
  34 #include "xmlpool.h"
  35
  36 #include "dri_screen.h"
  37 #include "dri_context.h"
  38 #include "dri_drawable.h"
  39 #include "dri_st_api.h"
  40 #include "dri1.h"
  41
  42 #include "util/u_inlines.h"
  43 #include "pipe/p_screen.h"
  44 #include "pipe/p_format.h"
  45 #include "state_tracker/drm_api.h"
  46
  47 #include "util/u_debug.h"
  48
  49 PUBLIC const char __driConfigOptions[] =
  50    DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
  51    DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
  52    DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
  53    DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
  54     /*DRI_CONF_FORCE_S3TC_ENABLE(false) */
  55    DRI_CONF_ALLOW_LARGE_TEXTURES(1)
  56    DRI_CONF_SECTION_END DRI_CONF_END;
  57
  58 const uint __driNConfigOptions = 3;
  59
  60 static const __DRItexBufferExtension dri2TexBufferExtension = {
  61     { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
  62    dri2_set_tex_buffer,
  63    dri2_set_tex_buffer2,
  64 };
  65
  66 static void
  67 dri2_flush_drawable(__DRIdrawable *draw)
  68 {
  69 }
  70
  71 static void
  72 dri2_invalidate_drawable(__DRIdrawable *dPriv)
  73 {
  74    struct dri_drawable *drawable = dri_drawable(dPriv);
  75    struct dri_context *ctx = dri_context(dPriv->driContextPriv);
  76
  77    dri2InvalidateDrawable(dPriv);
  78    drawable->dPriv->lastStamp = *drawable->dPriv->pStamp;
  79
  80    if (ctx)
  81       ctx->st->notify_invalid_framebuffer(ctx->st, drawable->stfb);
  82 }
  83
  84 static const __DRI2flushExtension dri2FlushExtension = {
  85     { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
  86     dri2_flush_drawable,
  87     dri2_invalidate_drawable,
  88 };
  89
  90    static const __DRIextension *dri_screen_extensions[] = {
  91       &driReadDrawableExtension,
  92       &driCopySubBufferExtension.base,
  93       &driSwapControlExtension.base,
  94       &driFrameTrackingExtension.base,
  95       &driMediaStreamCounterExtension.base,
  96       &dri2TexBufferExtension.base,
  97       &dri2FlushExtension.base,
  98       NULL
  99    };
 100
 101 const __DRIconfig **
 102 dri_fill_in_modes(struct dri_screen *screen,
 103                   unsigned pixel_bits)
 104 {
 105    __DRIconfig **configs = NULL;
 106    __DRIconfig **configs_r5g6b5 = NULL;
 107    __DRIconfig **configs_a8r8g8b8 = NULL;
 108    __DRIconfig **configs_x8r8g8b8 = NULL;
 109    unsigned num_modes;
 110    uint8_t depth_bits_array[5];
 111    uint8_t stencil_bits_array[5];
 112    uint8_t msaa_samples_array[2];
 113    unsigned depth_buffer_factor;
 114    unsigned back_buffer_factor;
 115    unsigned msaa_samples_factor;
 116    struct pipe_screen *p_screen = screen->pipe_screen;
 117    boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
 118    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 119
 120    static const GLenum back_buffer_modes[] = {
 121       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 122    };
 123
 124    depth_bits_array[0] = 0;
 125    stencil_bits_array[0] = 0;
 126    depth_buffer_factor = 1;
 127
 128    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 129                                             PIPE_TEXTURE_2D,
 130                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 131    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 132                                             PIPE_TEXTURE_2D,
 133                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 134    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24S8_UNORM,
 135                                             PIPE_TEXTURE_2D,
 136                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 137    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8Z24_UNORM,
 138                                             PIPE_TEXTURE_2D,
 139                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 140    pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
 141                                                PIPE_TEXTURE_2D,
 142                                                PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
 143    pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
 144                                                PIPE_TEXTURE_2D,
 145                                                PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
 146    pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
 147                                              PIPE_TEXTURE_2D,
 148                                              PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
 149
 150    /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
 151    if (screen->sPriv->dri2.loader &&
 152        (screen->sPriv->dri2.loader->base.version > 2) &&
 153        (screen->sPriv->dri2.loader->getBuffersWithFormat != NULL)) {
 154       pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 155                                              PIPE_TEXTURE_2D,
 156                                              PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 157       pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 158                                              PIPE_TEXTURE_2D,
 159                                              PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 160    } else {
 161       pf_z16 = FALSE;
 162       pf_z32 = FALSE;
 163    }
 164
 165    if (pf_z16) {
 166       depth_bits_array[depth_buffer_factor] = 16;
 167       stencil_bits_array[depth_buffer_factor++] = 0;
 168    }
 169    if (pf_x8z24 || pf_z24x8) {
 170       depth_bits_array[depth_buffer_factor] = 24;
 171       stencil_bits_array[depth_buffer_factor++] = 0;
 172       screen->d_depth_bits_last = pf_x8z24;
 173    }
 174    if (pf_s8z24 || pf_z24s8) {
 175       depth_bits_array[depth_buffer_factor] = 24;
 176       stencil_bits_array[depth_buffer_factor++] = 8;
 177       screen->sd_depth_bits_last = pf_s8z24;
 178    }
 179    if (pf_z32) {
 180       depth_bits_array[depth_buffer_factor] = 32;
 181       stencil_bits_array[depth_buffer_factor++] = 0;
 182    }
 183
 184    msaa_samples_array[0] = 0;
 185    msaa_samples_array[1] = 4;
 186    back_buffer_factor = 3;
 187    msaa_samples_factor = 2;
 188
 189    num_modes =
 190       depth_buffer_factor * back_buffer_factor * msaa_samples_factor * 4;
 191
 192    if (pf_r5g6b5)
 193       configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
 194                                         depth_bits_array, stencil_bits_array,
 195                                         depth_buffer_factor, back_buffer_modes,
 196                                         back_buffer_factor,
 197                                         msaa_samples_array, msaa_samples_factor,
 198                                         GL_TRUE);
 199
 200    if (pf_a8r8g8b8)
 201       configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
 202                                           depth_bits_array,
 203                                           stencil_bits_array,
 204                                           depth_buffer_factor,
 205                                           back_buffer_modes,
 206                                           back_buffer_factor,
 207                                           msaa_samples_array,
 208                                           msaa_samples_factor,
 209                                           GL_TRUE);
 210
 211    if (pf_x8r8g8b8)
 212       configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
 213                                           depth_bits_array,
 214                                           stencil_bits_array,
 215                                           depth_buffer_factor,
 216                                           back_buffer_modes,
 217                                           back_buffer_factor,
 218                                           msaa_samples_array,
 219                                           msaa_samples_factor,
 220                                           GL_TRUE);
 221
 222    if (pixel_bits == 16) {
 223       configs = configs_r5g6b5;
 224       if (configs_a8r8g8b8)
 225          configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
 226       if (configs_x8r8g8b8)
 227          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 228    } else {
 229       configs = configs_a8r8g8b8;
 230       if (configs_x8r8g8b8)
 231          configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
 232       if (configs_r5g6b5)
 233          configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
 234    }
 235
 236    if (configs == NULL) {
 237       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 238       return NULL;
 239    }
 240
 241    return (const __DRIconfig **)configs;
 242 }
 243
 244 /**
 245  * Roughly the converse of dri_fill_in_modes.
 246  */
 247 void
 248 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 249                    const __GLcontextModes *mode)
 250 {
 251    memset(stvis, 0, sizeof(*stvis));
 252
 253    stvis->samples = mode->samples;
 254    stvis->render_buffer = ST_ATTACHMENT_INVALID;
 255
 256    if (mode->redBits == 8) {
 257       if (mode->alphaBits == 8)
 258          stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
 259       else
 260          stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
 261    } else {
 262       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 263    }
 264
 265    switch (mode->depthBits) {
 266    default:
 267    case 0:
 268       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 269       break;
 270    case 16:
 271       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 272       break;
 273    case 24:
 274       if (mode->stencilBits == 0) {
 275          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 276                                           PIPE_FORMAT_Z24X8_UNORM:
 277                                           PIPE_FORMAT_X8Z24_UNORM;
 278       } else {
 279          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 280                                           PIPE_FORMAT_Z24S8_UNORM:
 281                                           PIPE_FORMAT_S8Z24_UNORM;
 282       }
 283       break;
 284    case 32:
 285       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 286       break;
 287    }
 288
 289    stvis->accum_format = (mode->haveAccumBuffer) ?
 290       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 291
 292    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 293    if (mode->doubleBufferMode)
 294       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 295    if (mode->stereoMode) {
 296       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 297       if (mode->doubleBufferMode)
 298          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 299    }
 300
 301    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 302       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 303    /* let the state tracker allocate the accum buffer */
 304 }
 305
 306 /**
 307  * Get information about previous buffer swaps.
 308  */
 309 static int
 310 dri_get_swap_info(__DRIdrawable * dPriv, __DRIswapInfo * sInfo)
 311 {
 312    if (dPriv == NULL || dPriv->driverPrivate == NULL || sInfo == NULL)
 313       return -1;
 314    else
 315       return 0;
 316 }
 317
 318 static void
 319 dri_destroy_screen(__DRIscreen * sPriv)
 320 {
 321    struct dri_screen *screen = dri_screen(sPriv);
 322    int i;
 323
 324    if (screen->dri1_pipe)
 325       screen->dri1_pipe->destroy(screen->dri1_pipe);
 326
 327    if (screen->smapi)
 328       dri_destroy_st_manager(screen->smapi);
 329    if (screen->pipe_screen)
 330       screen->pipe_screen->destroy(screen->pipe_screen);
 331
 332    for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 333       FREE(screen->optionCache.info[i].name);
 334       FREE(screen->optionCache.info[i].ranges);
 335    }
 336
 337    FREE(screen->optionCache.info);
 338    FREE(screen->optionCache.values);
 339
 340    FREE(screen);
 341    sPriv->private = NULL;
 342    sPriv->extensions = NULL;
 343 }
 344
 345 /**
 346  * This is the driver specific part of the createNewScreen entry point.
 347  *
 348  * Returns the __GLcontextModes supported by this driver.
 349  */
 350 static const __DRIconfig **
 351 dri_init_screen2(__DRIscreen * sPriv)
 352 {
 353    struct dri_screen *screen;
 354    struct drm_create_screen_arg arg;
 355    const __DRIdri2LoaderExtension *dri2_ext =
 356      sPriv->dri2.loader;
 357
 358    screen = CALLOC_STRUCT(dri_screen);
 359    if (!screen)
 360       return NULL;
 361
 362    screen->api = drm_api_create();
 363    screen->sPriv = sPriv;
 364    screen->fd = sPriv->fd;
 365    sPriv->private = (void *)screen;
 366    sPriv->extensions = dri_screen_extensions;
 367    arg.mode = DRM_CREATE_NORMAL;
 368
 369    screen->pipe_screen = screen->api->create_screen(screen->api, screen->fd, &arg);
 370    if (!screen->pipe_screen) {
 371       debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
 372       goto fail;
 373    }
 374
 375    screen->smapi = dri_create_st_manager(screen);
 376    if (!screen->smapi)
 377       goto fail;
 378
 379    driParseOptionInfo(&screen->optionCache,
 380                       __driConfigOptions, __driNConfigOptions);
 381
 382    screen->auto_fake_front = dri2_ext->base.version >= 3 &&
 383       dri2_ext->getBuffersWithFormat != NULL;
 384
 385    return dri_fill_in_modes(screen, 32);
 386 fail:
 387    dri_destroy_screen(sPriv);
 388    return NULL;
 389 }
 390
 391 const struct __DriverAPIRec driDriverAPI = {
 392    .DestroyScreen = dri_destroy_screen,
 393    .CreateContext = dri_create_context,
 394    .DestroyContext = dri_destroy_context,
 395    .CreateBuffer = dri_create_buffer,
 396    .DestroyBuffer = dri_destroy_buffer,
 397    .MakeCurrent = dri_make_current,
 398    .UnbindContext = dri_unbind_context,
 399    .GetSwapInfo = dri_get_swap_info,
 400    .GetDrawableMSC = driDrawableGetMSC32,
 401    .WaitForMSC = driWaitForMSC32,
 402    .InitScreen2 = dri_init_screen2,
 403
 404    .InitScreen = dri1_init_screen,
 405    .SwapBuffers = dri1_swap_buffers,
 406    .CopySubBuffer = dri1_copy_sub_buffer,
 407 };
 408
 409 /* This is the table of extensions that the loader will dlsym() for. */
 410 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 411     &driCoreExtension.base,
 412     &driLegacyExtension.base,
 413     &driDRI2Extension.base,
 414     NULL
 415 };
 416
 417 /* vim: set sw=3 ts=8 sts=3 expandtab: */