src/gallium/winsys/g3dvl/xlib/xsp_winsys.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 Younes Manton.
   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 TUNGSTEN GRAPHICS 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 #include <vl_winsys.h>
  29 #include <X11/Xlibint.h>
  30 #include <state_tracker/xlib_sw_winsys.h>
  31 #include <util/u_memory.h>
  32 #include <util/u_format.h>
  33 #include <softpipe/sp_public.h>
  34 #include <softpipe/sp_video_context.h>
  35
  36 struct vl_xsp_screen
  37 {
  38    struct vl_screen base;
  39    Display *display;
  40    int screen;
  41    Visual visual;
  42    struct xlib_drawable xdraw;
  43    struct pipe_surface *drawable_surface;
  44 };
  45
  46 struct pipe_surface*
  47 vl_drawable_surface_get(struct vl_screen *vscreen, Drawable drawable)
  48 {
  49    struct vl_xsp_screen *xsp_screen = (struct vl_xsp_screen*)vscreen;
  50    Window root;
  51    int x, y;
  52    unsigned int width, height;
  53    unsigned int border_width;
  54    unsigned int depth;
  55    struct pipe_resource templat, *drawable_tex;
  56    struct pipe_surface *drawable_surface = NULL;
  57
  58    assert(vscreen);
  59    assert(drawable != None);
  60
  61    if (XGetGeometry(xsp_screen->display, drawable, &root, &x, &y, &width, &height, &border_width, &depth) == BadDrawable)
  62       return NULL;
  63
  64    xsp_screen->xdraw.drawable = drawable;
  65
  66    if (xsp_screen->drawable_surface) {
  67       if (xsp_screen->drawable_surface->width == width &&
  68           xsp_screen->drawable_surface->height == height) {
  69          pipe_surface_reference(&drawable_surface, xsp_screen->drawable_surface);
  70          return drawable_surface;
  71       }
  72       else
  73          pipe_surface_reference(&xsp_screen->drawable_surface, NULL);
  74    }
  75
  76    memset(&templat, 0, sizeof(struct pipe_resource));
  77    templat.target = PIPE_TEXTURE_2D;
  78    /* XXX: Need to figure out drawable's format */
  79    templat.format = PIPE_FORMAT_B8G8R8X8_UNORM;
  80    templat.last_level = 0;
  81    templat.width0 = width;
  82    templat.height0 = height;
  83    templat.depth0 = 1;
  84    templat.usage = PIPE_USAGE_DEFAULT;
  85    templat.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_DISPLAY_TARGET;
  86    templat.flags = 0;
  87
  88    drawable_tex = vscreen->pscreen->resource_create(vscreen->pscreen, &templat);
  89    if (!drawable_tex)
  90       return NULL;
  91
  92    xsp_screen->drawable_surface = vscreen->pscreen->get_tex_surface(vscreen->pscreen, drawable_tex,
  93                                                                     0, 0, 0,
  94                                                                     templat.bind);
  95    pipe_resource_reference(&drawable_tex, NULL);
  96
  97    if (!xsp_screen->drawable_surface)
  98       return NULL;
  99
 100    pipe_surface_reference(&drawable_surface, xsp_screen->drawable_surface);
 101
 102    xsp_screen->xdraw.depth = 24/*util_format_get_blocksizebits(templat.format) /
 103                              util_format_get_blockwidth(templat.format)*/;
 104
 105    return drawable_surface;
 106 }
 107
 108 void*
 109 vl_contextprivate_get(struct vl_context *vctx, struct pipe_surface *drawable_surface)
 110 {
 111    struct vl_xsp_screen *xsp_screen = (struct vl_xsp_screen*)vctx->vscreen;
 112
 113    assert(vctx);
 114    assert(drawable_surface);
 115    assert(xsp_screen->drawable_surface == drawable_surface);
 116
 117    return &xsp_screen->xdraw;
 118 }
 119
 120 struct vl_screen*
 121 vl_screen_create(Display *display, int screen)
 122 {
 123    struct vl_xsp_screen *xsp_screen;
 124    struct sw_winsys *winsys;
 125
 126    assert(display);
 127
 128    xsp_screen = CALLOC_STRUCT(vl_xsp_screen);
 129    if (!xsp_screen)
 130       return NULL;
 131
 132    winsys = xlib_create_sw_winsys(display);
 133    if (!winsys) {
 134       FREE(xsp_screen);
 135       return NULL;
 136    }
 137
 138    xsp_screen->base.pscreen = softpipe_create_screen(winsys);
 139    if (!xsp_screen->base.pscreen) {
 140       winsys->destroy(winsys);
 141       FREE(xsp_screen);
 142       return NULL;
 143    }
 144
 145    xsp_screen->display = display;
 146    xsp_screen->screen = screen;
 147    xsp_screen->xdraw.visual = XDefaultVisual(display, screen);
 148
 149    return &xsp_screen->base;
 150 }
 151
 152 void vl_screen_destroy(struct vl_screen *vscreen)
 153 {
 154    struct vl_xsp_screen *xsp_screen = (struct vl_xsp_screen*)vscreen;
 155
 156    assert(vscreen);
 157
 158    pipe_surface_reference(&xsp_screen->drawable_surface, NULL);
 159    vscreen->pscreen->destroy(vscreen->pscreen);
 160    FREE(vscreen);
 161 }
 162
 163 struct vl_context*
 164 vl_video_create(struct vl_screen *vscreen,
 165                 enum pipe_video_profile profile,
 166                 enum pipe_video_chroma_format chroma_format,
 167                 unsigned width, unsigned height)
 168 {
 169    struct pipe_video_context *vpipe;
 170    struct vl_context *vctx;
 171
 172    assert(vscreen);
 173    assert(width && height);
 174    assert(vscreen->pscreen->video_context_create);
 175
 176    vpipe = vscreen->pscreen->video_context_create(vscreen->pscreen,
 177                                                   profile,
 178                                                   chroma_format,
 179                                                   width, height, NULL);
 180    if (!vpipe)
 181       return NULL;
 182
 183    vctx = CALLOC_STRUCT(vl_context);
 184    if (!vctx) {
 185       vpipe->destroy(vpipe);
 186       return NULL;
 187    }
 188
 189    vpipe->priv = vctx;
 190    vctx->vpipe = vpipe;
 191    vctx->vscreen = vscreen;
 192
 193    return vctx;
 194 }
 195
 196 void vl_video_destroy(struct vl_context *vctx)
 197 {
 198    assert(vctx);
 199
 200    vctx->vpipe->destroy(vctx->vpipe);
 201    FREE(vctx);
 202 }