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
  40 #include "pipe/p_context.h"
  41 #include "pipe/p_screen.h"
  42 #include "pipe/p_inlines.h"
  43 #include "pipe/p_format.h"
  44 #include "state_tracker/drm_api.h"
  45 #include "state_tracker/dri1_api.h"
  46 #include "state_tracker/st_public.h"
  47 #include "state_tracker/st_cb_fbo.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 const __DRIextension *dri_screen_extensions[] = {
  67       &driReadDrawableExtension,
  68       &driCopySubBufferExtension.base,
  69       &driSwapControlExtension.base,
  70       &driFrameTrackingExtension.base,
  71       &driMediaStreamCounterExtension.base,
  72       &dri2TexBufferExtension.base,
  73       NULL
  74    };
  75
  76 struct dri1_api *__dri1_api_hooks = NULL;
  77
  78 static const __DRIconfig **
  79 dri_fill_in_modes(struct dri_screen *screen,
  80                   unsigned pixel_bits)
  81 {
  82    __DRIconfig **configs = NULL;
  83    unsigned num_modes;
  84    uint8_t depth_bits_array[5];
  85    uint8_t stencil_bits_array[5];
  86    uint8_t msaa_samples_array[1];
  87    unsigned depth_buffer_factor;
  88    unsigned back_buffer_factor;
  89    unsigned msaa_samples_factor;
  90    struct pipe_screen *p_screen = screen->pipe_screen;
  91    boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
  92    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
  93
  94    static const GLenum back_buffer_modes[] = {
  95       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
  96    };
  97
  98    depth_bits_array[0] = 0;
  99    stencil_bits_array[0] = 0;
 100    depth_buffer_factor = 1;
 101
 102    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 103                                           PIPE_TEXTURE_2D,
 104                                           PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 105    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 106                                           PIPE_TEXTURE_2D,
 107                                           PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 108    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 109                                             PIPE_TEXTURE_2D,
 110                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 111    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 112                                             PIPE_TEXTURE_2D,
 113                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 114    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8Z24_UNORM,
 115                                             PIPE_TEXTURE_2D,
 116                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 117    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24S8_UNORM,
 118                                             PIPE_TEXTURE_2D,
 119                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 120    pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_R5G6B5_UNORM,
 121                                              PIPE_TEXTURE_2D,
 122                                              PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
 123    pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_A8R8G8B8_UNORM,
 124                                                PIPE_TEXTURE_2D,
 125                                                PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
 126    pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8R8G8B8_UNORM,
 127                                                PIPE_TEXTURE_2D,
 128                                                PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
 129
 130    if (pf_z16) {
 131       depth_bits_array[depth_buffer_factor] = 16;
 132       stencil_bits_array[depth_buffer_factor++] = 0;
 133    }
 134    if (pf_x8z24 || pf_z24x8) {
 135       depth_bits_array[depth_buffer_factor] = 24;
 136       stencil_bits_array[depth_buffer_factor++] = 0;
 137       screen->d_depth_bits_last = pf_x8z24;
 138    }
 139    if (pf_s8z24 || pf_z24s8) {
 140       depth_bits_array[depth_buffer_factor] = 24;
 141       stencil_bits_array[depth_buffer_factor++] = 8;
 142       screen->sd_depth_bits_last = pf_s8z24;
 143    }
 144    if (pf_z32) {
 145       depth_bits_array[depth_buffer_factor] = 32;
 146       stencil_bits_array[depth_buffer_factor++] = 0;
 147    }
 148
 149    msaa_samples_array[0] = 0;
 150    back_buffer_factor = 3;
 151    msaa_samples_factor = 1;
 152
 153    num_modes =
 154       depth_buffer_factor * back_buffer_factor * msaa_samples_factor * 4;
 155
 156    if (pixel_bits == 16 && pf_r5g6b5) {
 157       configs = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
 158                                  depth_bits_array, stencil_bits_array,
 159                                  depth_buffer_factor, back_buffer_modes,
 160                                  back_buffer_factor,
 161                                  msaa_samples_array, msaa_samples_factor);
 162    } else {
 163       __DRIconfig **configs_a8r8g8b8 = NULL;
 164       __DRIconfig **configs_x8r8g8b8 = NULL;
 165
 166       if (pf_a8r8g8b8)
 167          configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
 168                                              depth_bits_array,
 169                                              stencil_bits_array,
 170                                              depth_buffer_factor,
 171                                              back_buffer_modes,
 172                                              back_buffer_factor,
 173                                              msaa_samples_array,
 174                                              msaa_samples_factor);
 175       if (pf_x8r8g8b8)
 176          configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
 177                                              depth_bits_array,
 178                                              stencil_bits_array,
 179                                              depth_buffer_factor,
 180                                              back_buffer_modes,
 181                                              back_buffer_factor,
 182                                              msaa_samples_array,
 183                                              msaa_samples_factor);
 184
 185       if (configs_a8r8g8b8 && configs_x8r8g8b8)
 186          configs = driConcatConfigs(configs_x8r8g8b8, configs_a8r8g8b8);
 187       else if (configs_a8r8g8b8)
 188          configs = configs_a8r8g8b8;
 189       else if (configs_x8r8g8b8)
 190          configs = configs_x8r8g8b8;
 191       else
 192          configs = NULL;
 193    }
 194
 195    if (configs == NULL) {
 196       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 197       return NULL;
 198    }
 199
 200    return (const const __DRIconfig **)configs;
 201 }
 202
 203 /**
 204  * Get information about previous buffer swaps.
 205  */
 206 static int
 207 dri_get_swap_info(__DRIdrawable * dPriv, __DRIswapInfo * sInfo)
 208 {
 209    if (dPriv == NULL || dPriv->driverPrivate == NULL || sInfo == NULL)
 210       return -1;
 211    else
 212       return 0;
 213 }
 214
 215 static INLINE void
 216 dri_copy_version(struct dri1_api_version *dst,
 217                  const struct __DRIversionRec *src)
 218 {
 219    dst->major = src->major;
 220    dst->minor = src->minor;
 221    dst->patch_level = src->patch;
 222 }
 223
 224 static const __DRIconfig **
 225 dri_init_screen(__DRIscreen * sPriv)
 226 {
 227    struct dri_screen *screen;
 228    const __DRIconfig **configs;
 229    struct dri1_create_screen_arg arg;
 230
 231    screen = CALLOC_STRUCT(dri_screen);
 232    if (!screen)
 233       return NULL;
 234
 235    screen->api = drm_api_create();
 236    screen->sPriv = sPriv;
 237    screen->fd = sPriv->fd;
 238    screen->drmLock = (drmLock *) & sPriv->pSAREA->lock;
 239
 240    sPriv->private = (void *)screen;
 241    sPriv->extensions = dri_screen_extensions;
 242
 243    arg.base.mode = DRM_CREATE_DRI1;
 244    arg.lf = &dri1_lf;
 245    arg.ddx_info = sPriv->pDevPriv;
 246    arg.ddx_info_size = sPriv->devPrivSize;
 247    arg.sarea = sPriv->pSAREA;
 248    dri_copy_version(&arg.ddx_version, &sPriv->ddx_version);
 249    dri_copy_version(&arg.dri_version, &sPriv->dri_version);
 250    dri_copy_version(&arg.drm_version, &sPriv->drm_version);
 251    arg.api = NULL;
 252
 253    screen->pipe_screen = screen->api->create_screen(screen->api, screen->fd, &arg.base);
 254
 255    if (!screen->pipe_screen || !arg.api) {
 256       debug_printf("%s: failed to create dri1 screen\n", __FUNCTION__);
 257       goto out_no_screen;
 258    }
 259
 260    __dri1_api_hooks = arg.api;
 261
 262    screen->pipe_screen->flush_frontbuffer = dri1_flush_frontbuffer;
 263    driParseOptionInfo(&screen->optionCache,
 264                       __driConfigOptions, __driNConfigOptions);
 265
 266    /**
 267     * FIXME: If the driver supports format conversion swapbuffer blits, we might
 268     * want to support other color bit depths than the server is currently
 269     * using.
 270     */
 271
 272    configs = dri_fill_in_modes(screen, sPriv->fbBPP);
 273    if (!configs)
 274       goto out_no_configs;
 275
 276    return configs;
 277  out_no_configs:
 278    screen->pipe_screen->destroy(screen->pipe_screen);
 279  out_no_screen:
 280    FREE(screen);
 281    return NULL;
 282 }
 283
 284 /**
 285  * This is the driver specific part of the createNewScreen entry point.
 286  *
 287  * Returns the __GLcontextModes supported by this driver.
 288  */
 289 static const __DRIconfig **
 290 dri_init_screen2(__DRIscreen * sPriv)
 291 {
 292    struct dri_screen *screen;
 293    struct drm_create_screen_arg arg;
 294
 295    screen = CALLOC_STRUCT(dri_screen);
 296    if (!screen)
 297       goto fail;
 298
 299    screen->api = drm_api_create();
 300    screen->sPriv = sPriv;
 301    screen->fd = sPriv->fd;
 302    sPriv->private = (void *)screen;
 303    sPriv->extensions = dri_screen_extensions;
 304    arg.mode = DRM_CREATE_NORMAL;
 305
 306    screen->pipe_screen = screen->api->create_screen(screen->api, screen->fd, &arg);
 307    if (!screen->pipe_screen) {
 308       debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
 309       goto fail;
 310    }
 311
 312    /* We need to hook in here */
 313    screen->pipe_screen->update_buffer = dri_update_buffer;
 314    screen->pipe_screen->flush_frontbuffer = dri_flush_frontbuffer;
 315
 316    driParseOptionInfo(&screen->optionCache,
 317                       __driConfigOptions, __driNConfigOptions);
 318
 319    return dri_fill_in_modes(screen, 32);
 320  fail:
 321    return NULL;
 322 }
 323
 324 static void
 325 dri_destroy_screen(__DRIscreen * sPriv)
 326 {
 327    struct dri_screen *screen = dri_screen(sPriv);
 328
 329    screen->pipe_screen->destroy(screen->pipe_screen);
 330    FREE(screen);
 331    sPriv->private = NULL;
 332 }
 333
 334 PUBLIC const struct __DriverAPIRec driDriverAPI = {
 335    .InitScreen = dri_init_screen,
 336    .DestroyScreen = dri_destroy_screen,
 337    .CreateContext = dri_create_context,
 338    .DestroyContext = dri_destroy_context,
 339    .CreateBuffer = dri_create_buffer,
 340    .DestroyBuffer = dri_destroy_buffer,
 341    .SwapBuffers = dri_swap_buffers,
 342    .MakeCurrent = dri_make_current,
 343    .UnbindContext = dri_unbind_context,
 344    .GetSwapInfo = dri_get_swap_info,
 345    .GetDrawableMSC = driDrawableGetMSC32,
 346    .WaitForMSC = driWaitForMSC32,
 347    .CopySubBuffer = dri_copy_sub_buffer,
 348    .InitScreen = dri_init_screen,
 349    .InitScreen2 = dri_init_screen2,
 350 };
 351
 352 /* This is the table of extensions that the loader will dlsym() for. */
 353 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 354     &driCoreExtension.base,
 355     &driLegacyExtension.base,
 356     &driDRI2Extension.base,
 357     NULL
 358 };
 359
 360 /* vim: set sw=3 ts=8 sts=3 expandtab: */