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      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                           unsigned usage)
     52 {
     53    if (template->target == PIPE_BUFFER)
     54       return NULL;
     55    else
     56       return svga_texture_from_handle(screen, template, whandle);
     57 }
     58 
     59 
     60 /**
     61  * Check if a resource (texture, buffer) of the given size
     62  * and format can be created.
     63  * \Return TRUE if OK, FALSE if too large.
     64  */
     65 static boolean
     66 svga_can_create_resource(struct pipe_screen *screen,
     67                          const struct pipe_resource *res)
     68 {
     69    struct svga_screen *svgascreen = svga_screen(screen);
     70    struct svga_winsys_screen *sws = svgascreen->sws;
     71    SVGA3dSurfaceFormat format;
     72    SVGA3dSize base_level_size;
     73    uint32 numMipLevels;
     74    uint32 arraySize;
     75 
     76    if (res->target == PIPE_BUFFER) {
     77       format = SVGA3D_BUFFER;
     78       base_level_size.width = res->width0;
     79       base_level_size.height = 1;
     80       base_level_size.depth = 1;
     81       numMipLevels = 1;
     82       arraySize = 1;
     83 
     84    } else {
     85       if (res->target == PIPE_TEXTURE_CUBE)
     86          assert(res->array_size == 6);
     87 
     88       format = svga_translate_format(svgascreen, res->format, res->bind);
     89       if (format == SVGA3D_FORMAT_INVALID)
     90          return FALSE;
     91 
     92       base_level_size.width = res->width0;
     93       base_level_size.height = res->height0;
     94       base_level_size.depth = res->depth0;
     95       numMipLevels = res->last_level + 1;
     96       arraySize = res->array_size;
     97    }
     98 
     99    return sws->surface_can_create(sws, format, base_level_size,
    100                                   arraySize, numMipLevels);
    101 }
    102 
    103 
    104 void
    105 svga_init_resource_functions(struct svga_context *svga)
    106 {
    107    svga->pipe.transfer_map = u_transfer_map_vtbl;
    108    svga->pipe.transfer_flush_region = u_transfer_flush_region_vtbl;
    109    svga->pipe.transfer_unmap = u_transfer_unmap_vtbl;
    110    svga->pipe.buffer_subdata = u_default_buffer_subdata;
    111    svga->pipe.texture_subdata = u_default_texture_subdata;
    112 
    113    if (svga_have_vgpu10(svga)) {
    114       svga->pipe.generate_mipmap = svga_texture_generate_mipmap;
    115    } else {
    116       svga->pipe.generate_mipmap = NULL;
    117    }
    118 }
    119 
    120 void
    121 svga_init_screen_resource_functions(struct svga_screen *is)
    122 {
    123    is->screen.resource_create = svga_resource_create;
    124    is->screen.resource_from_handle = svga_resource_from_handle;
    125    is->screen.resource_get_handle = u_resource_get_handle_vtbl;
    126    is->screen.resource_destroy = u_resource_destroy_vtbl;
    127    is->screen.can_create_resource = svga_can_create_resource;
    128 }
    129