src/gallium/state_trackers/dri/common/dri_drawable.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,
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  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
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  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 "dri_screen.h"
  33 #include "dri_context.h"
  34 #include "dri_drawable.h"
  35 #include "dri_st_api.h"
  36 #include "dri1_helper.h"
  37
  38 #include "pipe/p_screen.h"
  39 #include "util/u_format.h"
  40 #include "util/u_memory.h"
  41
  42 /**
  43  * This is called when we need to set up GL rendering to a new X window.
  44  */
  45 boolean
  46 dri_create_buffer(__DRIscreen * sPriv,
  47                   __DRIdrawable * dPriv,
  48                   const __GLcontextModes * visual, boolean isPixmap)
  49 {
  50    struct dri_screen *screen = sPriv->private;
  51    struct dri_drawable *drawable = NULL;
  52
  53    if (isPixmap)
  54       goto fail;                       /* not implemented */
  55
  56    drawable = CALLOC_STRUCT(dri_drawable);
  57    if (drawable == NULL)
  58       goto fail;
  59
  60    dri_fill_st_visual(&drawable->stvis, screen, visual);
  61    dri_init_st_framebuffer(drawable);
  62
  63    drawable->sPriv = sPriv;
  64    drawable->dPriv = dPriv;
  65    dPriv->driverPrivate = (void *)drawable;
  66
  67    drawable->desired_fences = 2;
  68
  69    return GL_TRUE;
  70 fail:
  71    FREE(drawable);
  72    return GL_FALSE;
  73 }
  74
  75 void
  76 dri_destroy_buffer(__DRIdrawable * dPriv)
  77 {
  78    struct dri_drawable *drawable = dri_drawable(dPriv);
  79
  80    dri1_swap_fences_clear(drawable);
  81
  82    dri1_destroy_pipe_surface(drawable);
  83
  84    dri_close_st_framebuffer(drawable);
  85
  86    drawable->desired_fences = 0;
  87
  88    FREE(drawable);
  89 }
  90
  91 /**
  92  * Get the format and binding of an attachment.
  93  */
  94 void
  95 dri_drawable_get_format(struct dri_drawable *drawable,
  96                         enum st_attachment_type statt,
  97                         enum pipe_format *format,
  98                         unsigned *bind)
  99 {
 100    switch (statt) {
 101    case ST_ATTACHMENT_FRONT_LEFT:
 102    case ST_ATTACHMENT_BACK_LEFT:
 103    case ST_ATTACHMENT_FRONT_RIGHT:
 104    case ST_ATTACHMENT_BACK_RIGHT:
 105       *format = drawable->stvis.color_format;
 106       *bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
 107       break;
 108    case ST_ATTACHMENT_DEPTH_STENCIL:
 109       *format = drawable->stvis.depth_stencil_format;
 110       *bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
 111       break;
 112    default:
 113       *format = PIPE_FORMAT_NONE;
 114       *bind = 0;
 115       break;
 116    }
 117 }
 118
 119 /* vim: set sw=3 ts=8 sts=3 expandtab: */