src/gallium/drivers/svga/svga_resource.c

   1 /**********************************************************
   2  * Copyright 2008-2012 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "util/u_debug.h"
  27
  28 #include "svga_resource.h"
  29 #include "svga_resource_buffer.h"
  30 #include "svga_resource_texture.h"
  31 #include "svga_context.h"
  32 #include "svga_screen.h"
  33 #include "svga_format.h"
  34
  35
  36 static struct pipe_resource *
  37 svga_resource_create(struct pipe_screen *screen,
  38                      const struct pipe_resource *template)
  39 {
  40    if (template->target == PIPE_BUFFER)
  41       return svga_buffer_create(screen, template);
  42    else
  43       return svga_texture_create(screen, template);
  44 }
  45
  46
  47 static struct pipe_resource *
  48 svga_resource_from_handle(struct pipe_screen * screen,
  49                           const struct pipe_resource *template,
  50                           struct winsys_handle *whandle)
  51 {
  52    if (template->target == PIPE_BUFFER)
  53       return NULL;
  54    else
  55       return svga_texture_from_handle(screen, template, whandle);
  56 }
  57
  58
  59 /**
  60  * Check if a resource (texture, buffer) of the given size
  61  * and format can be created.
  62  * \Return TRUE if OK, FALSE if too large.
  63  */
  64 static boolean
  65 svga_can_create_resource(struct pipe_screen *screen,
  66                          const struct pipe_resource *res)
  67 {
  68    struct svga_screen *svgascreen = svga_screen(screen);
  69    struct svga_winsys_screen *sws = svgascreen->sws;
  70    SVGA3dSurfaceFormat format;
  71    SVGA3dSize base_level_size;
  72    uint32 numFaces;
  73    uint32 numMipLevels;
  74
  75    if (res->target == PIPE_BUFFER) {
  76       format = SVGA3D_BUFFER;
  77       base_level_size.width = res->width0;
  78       base_level_size.height = 1;
  79       base_level_size.depth = 1;
  80       numFaces = 1;
  81       numMipLevels = 1;
  82
  83    } else {
  84       format = svga_translate_format(svgascreen, res->format, res->bind);
  85       if (format == SVGA3D_FORMAT_INVALID)
  86          return FALSE;
  87
  88       base_level_size.width = res->width0;
  89       base_level_size.height = res->height0;
  90       base_level_size.depth = res->depth0;
  91       numFaces = (res->target == PIPE_TEXTURE_CUBE) ? 6 : 1;
  92       numMipLevels = res->last_level + 1;
  93    }
  94
  95    return sws->surface_can_create(sws, format, base_level_size,
  96                                   numFaces, numMipLevels);
  97 }
  98
  99
 100 void
 101 svga_init_resource_functions(struct svga_context *svga)
 102 {
 103    svga->pipe.transfer_map = u_transfer_map_vtbl;
 104    svga->pipe.transfer_flush_region = u_transfer_flush_region_vtbl;
 105    svga->pipe.transfer_unmap = u_transfer_unmap_vtbl;
 106    svga->pipe.transfer_inline_write = u_transfer_inline_write_vtbl;
 107 }
 108
 109 void
 110 svga_init_screen_resource_functions(struct svga_screen *is)
 111 {
 112    is->screen.resource_create = svga_resource_create;
 113    is->screen.resource_from_handle = svga_resource_from_handle;
 114    is->screen.resource_get_handle = u_resource_get_handle_vtbl;
 115    is->screen.resource_destroy = u_resource_destroy_vtbl;
 116    is->screen.can_create_resource = svga_can_create_resource;
 117 }