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 <X11/Xlibint.h>
  29
  30 #include <pipe/p_state.h>
  31 #include <pipe/p_video_context.h>
  32
  33 #include <util/u_memory.h>
  34 #include <util/u_format.h>
  35 #include <util/u_inlines.h>
  36
  37 #include <state_tracker/xlib_sw_winsys.h>
  38 #include <softpipe/sp_public.h>
  39
  40 #include <vl_winsys.h>
  41
  42 struct vl_xsp_screen
  43 {
  44    struct vl_screen base;
  45    Display *display;
  46    int screen;
  47    Visual visual;
  48    struct xlib_drawable xdraw;
  49    struct pipe_surface *drawable_surface;
  50 };
  51
  52 struct pipe_surface*
  53 vl_drawable_surface_get(struct vl_context *vctx, Drawable drawable)
  54 {
  55    struct vl_screen *vscreen = vctx->vscreen;
  56    struct vl_xsp_screen *xsp_screen = (struct vl_xsp_screen*)vscreen;
  57    Window root;
  58    int x, y;
  59    unsigned int width, height;
  60    unsigned int border_width;
  61    unsigned int depth;
  62    struct pipe_resource templat, *drawable_tex;
  63    struct pipe_surface surf_template, *drawable_surface = NULL;
  64
  65    assert(vscreen);
  66    assert(drawable != None);
  67
  68    if (XGetGeometry(xsp_screen->display, drawable, &root, &x, &y, &width, &height, &border_width, &depth) == BadDrawable)
  69       return NULL;
  70
  71    xsp_screen->xdraw.drawable = drawable;
  72
  73    if (xsp_screen->drawable_surface) {
  74       if (xsp_screen->drawable_surface->width == width &&
  75           xsp_screen->drawable_surface->height == height) {
  76          pipe_surface_reference(&drawable_surface, xsp_screen->drawable_surface);
  77          return drawable_surface;
  78       }
  79       else
  80          pipe_surface_reference(&xsp_screen->drawable_surface, NULL);
  81    }
  82
  83    memset(&templat, 0, sizeof(struct pipe_resource));
  84    templat.target = PIPE_TEXTURE_2D;
  85    /* XXX: Need to figure out drawable's format */
  86    templat.format = PIPE_FORMAT_B8G8R8X8_UNORM;
  87    templat.last_level = 0;
  88    templat.width0 = width;
  89    templat.height0 = height;
  90    templat.depth0 = 1;
  91    templat.usage = PIPE_USAGE_DEFAULT;
  92    templat.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_DISPLAY_TARGET;
  93    templat.flags = 0;
  94
  95    drawable_tex = vscreen->pscreen->resource_create(vscreen->pscreen, &templat);
  96    if (!drawable_tex)
  97       return NULL;
  98
  99    memset(&surf_template, 0, sizeof(surf_template));
 100    surf_template.format = templat.format;
 101    surf_template.usage = PIPE_BIND_RENDER_TARGET;
 102    xsp_screen->drawable_surface = vctx->vpipe->create_surface(vctx->vpipe, drawable_tex,
 103                                                               &surf_template);
 104    pipe_resource_reference(&drawable_tex, NULL);
 105
 106    if (!xsp_screen->drawable_surface)
 107       return NULL;
 108
 109    pipe_surface_reference(&drawable_surface, xsp_screen->drawable_surface);
 110
 111    xsp_screen->xdraw.depth = 24/*util_format_get_blocksizebits(templat.format) /
 112                              util_format_get_blockwidth(templat.format)*/;
 113
 114    return drawable_surface;
 115 }
 116
 117 void*
 118 vl_contextprivate_get(struct vl_context *vctx, struct pipe_surface *drawable_surface)
 119 {
 120    struct vl_xsp_screen *xsp_screen = (struct vl_xsp_screen*)vctx->vscreen;
 121
 122    assert(vctx);
 123    assert(drawable_surface);
 124    assert(xsp_screen->drawable_surface == drawable_surface);
 125
 126    return &xsp_screen->xdraw;
 127 }
 128
 129 struct vl_screen*
 130 vl_screen_create(Display *display, int screen)
 131 {
 132    struct vl_xsp_screen *xsp_screen;
 133    struct sw_winsys *winsys;
 134
 135    assert(display);
 136
 137    xsp_screen = CALLOC_STRUCT(vl_xsp_screen);
 138    if (!xsp_screen)
 139       return NULL;
 140
 141    winsys = xlib_create_sw_winsys(display);
 142    if (!winsys) {
 143       FREE(xsp_screen);
 144       return NULL;
 145    }
 146
 147    xsp_screen->base.pscreen = softpipe_create_screen(winsys);
 148    if (!xsp_screen->base.pscreen) {
 149       winsys->destroy(winsys);
 150       FREE(xsp_screen);
 151       return NULL;
 152    }
 153
 154    xsp_screen->display = display;
 155    xsp_screen->screen = screen;
 156    xsp_screen->xdraw.visual = XDefaultVisual(display, screen);
 157
 158    return &xsp_screen->base;
 159 }
 160
 161 void vl_screen_destroy(struct vl_screen *vscreen)
 162 {
 163    struct vl_xsp_screen *xsp_screen = (struct vl_xsp_screen*)vscreen;
 164
 165    assert(vscreen);
 166
 167    pipe_surface_reference(&xsp_screen->drawable_surface, NULL);
 168    vscreen->pscreen->destroy(vscreen->pscreen);
 169    FREE(vscreen);
 170 }
 171
 172 struct vl_context*
 173 vl_video_create(struct vl_screen *vscreen)
 174 {
 175    struct pipe_video_context *pipe;
 176    struct pipe_video_context *vpipe;
 177    struct vl_context *vctx;
 178
 179    assert(vscreen);
 180    assert(vscreen->pscreen->video_context_create);
 181
 182    pipe = vscreen->pscreen->context_create(vscreen->pscreen, NULL);
 183    if (!pipe)
 184       return NULL;
 185
 186    vpipe = vscreen->pscreen->video_context_create(vscreen->pscreen, pipe, NULL);
 187    if (!vpipe) {
 188       pipe->destroy(pipe);
 189       return NULL;
 190    }
 191
 192    vctx = CALLOC_STRUCT(vl_context);
 193    if (!vctx) {
 194       pipe->destroy(pipe);
 195       vpipe->destroy(vpipe);
 196       return NULL;
 197    }
 198
 199    vpipe->priv = vctx;
 200    vctx->vpipe = vpipe;
 201    vctx->vscreen = vscreen;
 202
 203    return vctx;
 204 }
 205
 206 void vl_video_destroy(struct vl_context *vctx)
 207 {
 208    assert(vctx);
 209
 210    vctx->pipe->destroy(vctx->pipe);
 211    vctx->vpipe->destroy(vctx->vpipe);
 212    FREE(vctx);
 213 }