src/gallium/state_trackers/dri/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,
  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 "dri_screen.h"
  33 #include "dri_context.h"
  34 #include "dri_drawable.h"
  35 #include "dri_st_api.h"
  36 #include "dri1.h"
  37
  38 #include "pipe/p_screen.h"
  39 #include "util/u_format.h"
  40 #include "util/u_memory.h"
  41 #include "util/u_inlines.h"
  42
  43 /**
  44  * These are used for GLX_EXT_texture_from_pixmap
  45  */
  46 void dri2_set_tex_buffer2(__DRIcontext *pDRICtx, GLint target,
  47                           GLint format, __DRIdrawable *dPriv)
  48 {
  49    struct dri_context *ctx = dri_context(pDRICtx);
  50    struct dri_drawable *drawable = dri_drawable(dPriv);
  51    struct pipe_texture *pt =
  52       dri_get_st_framebuffer_texture(drawable->stfb, ST_ATTACHMENT_FRONT_LEFT);
  53
  54    if (pt) {
  55       ctx->st->teximage(ctx->st,
  56             (target == GL_TEXTURE_2D) ? ST_TEXTURE_2D : ST_TEXTURE_RECT,
  57             0, drawable->stvis.color_format, pt, FALSE);
  58    }
  59 }
  60
  61 void dri2_set_tex_buffer(__DRIcontext *pDRICtx, GLint target,
  62                          __DRIdrawable *dPriv)
  63 {
  64    dri2_set_tex_buffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
  65 }
  66
  67 /**
  68  * This is called when we need to set up GL rendering to a new X window.
  69  */
  70 boolean
  71 dri_create_buffer(__DRIscreen * sPriv,
  72                   __DRIdrawable * dPriv,
  73                   const __GLcontextModes * visual, boolean isPixmap)
  74 {
  75    struct dri_screen *screen = sPriv->private;
  76    struct dri_drawable *drawable = NULL;
  77
  78    if (isPixmap)
  79       goto fail;                       /* not implemented */
  80
  81    drawable = CALLOC_STRUCT(dri_drawable);
  82    if (drawable == NULL)
  83       goto fail;
  84
  85    dri_fill_st_visual(&drawable->stvis, screen, visual);
  86    drawable->stfb = dri_create_st_framebuffer(drawable);
  87    if (drawable->stfb == NULL)
  88       goto fail;
  89
  90    drawable->sPriv = sPriv;
  91    drawable->dPriv = dPriv;
  92    dPriv->driverPrivate = (void *)drawable;
  93
  94    drawable->desired_fences = 2;
  95
  96    return GL_TRUE;
  97 fail:
  98    FREE(drawable);
  99    return GL_FALSE;
 100 }
 101
 102 void
 103 dri_destroy_buffer(__DRIdrawable * dPriv)
 104 {
 105    struct dri_drawable *drawable = dri_drawable(dPriv);
 106    int i;
 107
 108    dri1_swap_fences_clear(drawable);
 109
 110    pipe_surface_reference(&drawable->dri1_surface, NULL);
 111    for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
 112       pipe_texture_reference(&drawable->textures[i], NULL);
 113
 114    dri_destroy_st_framebuffer(drawable->stfb);
 115
 116    drawable->desired_fences = 0;
 117
 118    FREE(drawable);
 119 }
 120
 121 /* vim: set sw=3 ts=8 sts=3 expandtab: */