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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 /**
     37  * This is the primary driver entrypoint for allocating graphics memory
     38  * (vertex/index/constant buffers, textures, etc)
     39  */
     40 static struct pipe_resource *
     41 svga_resource_create(struct pipe_screen *screen,
     42                      const struct pipe_resource *template)
     43 {
     44    struct pipe_resource *r;
     45 
     46    if (template->target == PIPE_BUFFER)
     47       r = svga_buffer_create(screen, template);
     48    else
     49       r = svga_texture_create(screen, template);
     50 
     51    if (!r) {
     52       struct svga_screen *svgascreen = svga_screen(screen);
     53       svgascreen->hud.num_failed_allocations++;
     54    }
     55 
     56    return r;
     57 }
     58 
     59 
     60 static struct pipe_resource *
     61 svga_resource_from_handle(struct pipe_screen * screen,
     62                           const struct pipe_resource *template,
     63                           struct winsys_handle *whandle,
     64                           unsigned usage)
     65 {
     66    if (template->target == PIPE_BUFFER)
     67       return NULL;
     68    else
     69       return svga_texture_from_handle(screen, template, whandle);
     70 }
     71 
     72 
     73 /**
     74  * Check if a resource (texture, buffer) of the given size
     75  * and format can be created.
     76  * \Return TRUE if OK, FALSE if too large.
     77  */
     78 static boolean
     79 svga_can_create_resource(struct pipe_screen *screen,
     80                          const struct pipe_resource *res)
     81 {
     82    struct svga_screen *svgascreen = svga_screen(screen);
     83    struct svga_winsys_screen *sws = svgascreen->sws;
     84    SVGA3dSurfaceFormat format;
     85    SVGA3dSize base_level_size;
     86    uint32 numMipLevels;
     87    uint32 arraySize;
     88 
     89    if (res->target == PIPE_BUFFER) {
     90       format = SVGA3D_BUFFER;
     91       base_level_size.width = res->width0;
     92       base_level_size.height = 1;
     93       base_level_size.depth = 1;
     94       numMipLevels = 1;
     95       arraySize = 1;
     96 
     97    } else {
     98       if (res->target == PIPE_TEXTURE_CUBE)
     99          assert(res->array_size == 6);
    100 
    101       format = svga_translate_format(svgascreen, res->format, res->bind);
    102       if (format == SVGA3D_FORMAT_INVALID)
    103          return FALSE;
    104 
    105       base_level_size.width = res->width0;
    106       base_level_size.height = res->height0;
    107       base_level_size.depth = res->depth0;
    108       numMipLevels = res->last_level + 1;
    109       arraySize = res->array_size;
    110    }
    111 
    112    return sws->surface_can_create(sws, format, base_level_size,
    113                                   arraySize, numMipLevels);
    114 }
    115 
    116 
    117 void
    118 svga_init_resource_functions(struct svga_context *svga)
    119 {
    120    svga->pipe.transfer_map = u_transfer_map_vtbl;
    121    svga->pipe.transfer_flush_region = u_transfer_flush_region_vtbl;
    122    svga->pipe.transfer_unmap = u_transfer_unmap_vtbl;
    123    svga->pipe.buffer_subdata = u_default_buffer_subdata;
    124    svga->pipe.texture_subdata = u_default_texture_subdata;
    125 
    126    if (svga_have_vgpu10(svga)) {
    127       svga->pipe.generate_mipmap = svga_texture_generate_mipmap;
    128    } else {
    129       svga->pipe.generate_mipmap = NULL;
    130    }
    131 }
    132 
    133 void
    134 svga_init_screen_resource_functions(struct svga_screen *is)
    135 {
    136    is->screen.resource_create = svga_resource_create;
    137    is->screen.resource_from_handle = svga_resource_from_handle;
    138    is->screen.resource_get_handle = u_resource_get_handle_vtbl;
    139    is->screen.resource_destroy = u_resource_destroy_vtbl;
    140    is->screen.can_create_resource = svga_can_create_resource;
    141 }
    142