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 /**
  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 bool
  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    uint32 numSamples;
  89
  90    if (res->target == PIPE_BUFFER) {
  91       format = SVGA3D_BUFFER;
  92       base_level_size.width = res->width0;
  93       base_level_size.height = 1;
  94       base_level_size.depth = 1;
  95       numMipLevels = 1;
  96       arraySize = 1;
  97       numSamples = 0;
  98
  99    } else {
 100       if (res->target == PIPE_TEXTURE_CUBE)
 101          assert(res->array_size == 6);
 102
 103       format = svga_translate_format(svgascreen, res->format, res->bind);
 104       if (format == SVGA3D_FORMAT_INVALID)
 105          return false;
 106
 107       base_level_size.width = res->width0;
 108       base_level_size.height = res->height0;
 109       base_level_size.depth = res->depth0;
 110       numMipLevels = res->last_level + 1;
 111       arraySize = res->array_size;
 112       numSamples = res->nr_samples;
 113    }
 114
 115    return sws->surface_can_create(sws, format, base_level_size,
 116                                   arraySize, numMipLevels, numSamples);
 117 }
 118
 119
 120 void
 121 svga_init_resource_functions(struct svga_context *svga)
 122 {
 123    svga->pipe.transfer_map = u_transfer_map_vtbl;
 124    svga->pipe.transfer_flush_region = u_transfer_flush_region_vtbl;
 125    svga->pipe.transfer_unmap = u_transfer_unmap_vtbl;
 126    svga->pipe.buffer_subdata = u_default_buffer_subdata;
 127    svga->pipe.texture_subdata = u_default_texture_subdata;
 128
 129    if (svga_have_vgpu10(svga)) {
 130       svga->pipe.generate_mipmap = svga_texture_generate_mipmap;
 131    } else {
 132       svga->pipe.generate_mipmap = NULL;
 133    }
 134 }
 135
 136 void
 137 svga_init_screen_resource_functions(struct svga_screen *is)
 138 {
 139    is->screen.resource_create = svga_resource_create;
 140    is->screen.resource_from_handle = svga_resource_from_handle;
 141    is->screen.resource_get_handle = u_resource_get_handle_vtbl;
 142    is->screen.resource_destroy = u_resource_destroy_vtbl;
 143    is->screen.can_create_resource = svga_can_create_resource;
 144 }