src/gallium/drivers/nv20/nv20_screen.c

   1 #include "pipe/p_screen.h"
   2 #include "util/u_simple_screen.h"
   3
   4 #include "nv20_context.h"
   5 #include "nv20_screen.h"
   6
   7 static const char *
   8 nv20_screen_get_name(struct pipe_screen *screen)
   9 {
  10         struct nv20_screen *nv20screen = nv20_screen(screen);
  11         struct nouveau_device *dev = nv20screen->nvws->channel->device;
  12         static char buffer[128];
  13
  14         snprintf(buffer, sizeof(buffer), "NV%02X", dev->chipset);
  15         return buffer;
  16 }
  17
  18 static const char *
  19 nv20_screen_get_vendor(struct pipe_screen *screen)
  20 {
  21         return "nouveau";
  22 }
  23
  24 static int
  25 nv20_screen_get_param(struct pipe_screen *screen, int param)
  26 {
  27         switch (param) {
  28         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  29                 return 2;
  30         case PIPE_CAP_NPOT_TEXTURES:
  31                 return 0;
  32         case PIPE_CAP_TWO_SIDED_STENCIL:
  33                 return 0;
  34         case PIPE_CAP_GLSL:
  35                 return 0;
  36         case PIPE_CAP_S3TC:
  37                 return 0;
  38         case PIPE_CAP_ANISOTROPIC_FILTER:
  39                 return 1;
  40         case PIPE_CAP_POINT_SPRITE:
  41                 return 0;
  42         case PIPE_CAP_MAX_RENDER_TARGETS:
  43                 return 1;
  44         case PIPE_CAP_OCCLUSION_QUERY:
  45                 return 0;
  46         case PIPE_CAP_TEXTURE_SHADOW_MAP:
  47                 return 0;
  48         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
  49                 return 12;
  50         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  51                 return 0;
  52         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  53                 return 12;
  54         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
  55                 return 0;
  56         case NOUVEAU_CAP_HW_VTXBUF:
  57         case NOUVEAU_CAP_HW_IDXBUF:
  58                 return 0;
  59         default:
  60                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  61                 return 0;
  62         }
  63 }
  64
  65 static float
  66 nv20_screen_get_paramf(struct pipe_screen *screen, int param)
  67 {
  68         switch (param) {
  69         case PIPE_CAP_MAX_LINE_WIDTH:
  70         case PIPE_CAP_MAX_LINE_WIDTH_AA:
  71                 return 10.0;
  72         case PIPE_CAP_MAX_POINT_WIDTH:
  73         case PIPE_CAP_MAX_POINT_WIDTH_AA:
  74                 return 64.0;
  75         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
  76                 return 2.0;
  77         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
  78                 return 4.0;
  79         default:
  80                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  81                 return 0.0;
  82         }
  83 }
  84
  85 static boolean
  86 nv20_screen_is_format_supported(struct pipe_screen *screen,
  87                                 enum pipe_format format,
  88                                 enum pipe_texture_target target,
  89                                 unsigned tex_usage, unsigned geom_flags)
  90 {
  91         if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
  92                 switch (format) {
  93                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  94                 case PIPE_FORMAT_R5G6B5_UNORM:
  95                 case PIPE_FORMAT_Z24S8_UNORM:
  96                 case PIPE_FORMAT_Z16_UNORM:
  97                         return TRUE;
  98                 default:
  99                         break;
 100                 }
 101         } else {
 102                 switch (format) {
 103                 case PIPE_FORMAT_A8R8G8B8_UNORM:
 104                 case PIPE_FORMAT_A1R5G5B5_UNORM:
 105                 case PIPE_FORMAT_A4R4G4B4_UNORM:
 106                 case PIPE_FORMAT_R5G6B5_UNORM:
 107                 case PIPE_FORMAT_L8_UNORM:
 108                 case PIPE_FORMAT_A8_UNORM:
 109                 case PIPE_FORMAT_I8_UNORM:
 110                         return TRUE;
 111                 default:
 112                         break;
 113                 }
 114         }
 115
 116         return FALSE;
 117 }
 118
 119 static void *
 120 nv20_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 121                  unsigned flags )
 122 {
 123         struct pipe_winsys *ws = screen->winsys;
 124         void *map;
 125         struct nv20_miptree *nv20mt = (struct nv20_miptree *)surface->texture;
 126
 127         map = ws->buffer_map(ws, nv20mt->buffer, flags);
 128         if (!map)
 129                 return NULL;
 130
 131         return map + surface->offset;
 132 }
 133
 134 static void
 135 nv20_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 136 {
 137         struct pipe_winsys *ws = screen->winsys;
 138         struct nv20_miptree *nv20mt = (struct nv20_miptree *)surface->texture;
 139
 140         ws->buffer_unmap(ws, nv20mt->buffer);
 141 }
 142
 143 static void
 144 nv20_screen_destroy(struct pipe_screen *pscreen)
 145 {
 146         struct nv20_screen *screen = nv20_screen(pscreen);
 147         struct nouveau_winsys *nvws = screen->nvws;
 148
 149         nvws->notifier_free(&screen->sync);
 150         nvws->grobj_free(&screen->kelvin);
 151
 152         FREE(pscreen);
 153 }
 154
 155 struct pipe_screen *
 156 nv20_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
 157 {
 158         struct nv20_screen *screen = CALLOC_STRUCT(nv20_screen);
 159         unsigned kelvin_class = 0;
 160         unsigned chipset = nvws->channel->device->chipset;
 161         int ret;
 162
 163         if (!screen)
 164                 return NULL;
 165         screen->nvws = nvws;
 166
 167         /* 3D object */
 168         if (chipset >= 0x25)
 169                 kelvin_class = NV25TCL;
 170         else if (chipset >= 0x20)
 171                 kelvin_class = NV20TCL;
 172
 173         if (!kelvin_class || chipset >= 0x30) {
 174                 NOUVEAU_ERR("Unknown nv2x chipset: nv%02x\n", chipset);
 175                 return NULL;
 176         }
 177
 178         ret = nvws->grobj_alloc(nvws, kelvin_class, &screen->kelvin);
 179         if (ret) {
 180                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
 181                 return FALSE;
 182         }
 183
 184         /* Notifier for sync purposes */
 185         ret = nvws->notifier_alloc(nvws, 1, &screen->sync);
 186         if (ret) {
 187                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
 188                 nv20_screen_destroy(&screen->pipe);
 189                 return NULL;
 190         }
 191
 192         screen->pipe.winsys = ws;
 193         screen->pipe.destroy = nv20_screen_destroy;
 194
 195         screen->pipe.get_name = nv20_screen_get_name;
 196         screen->pipe.get_vendor = nv20_screen_get_vendor;
 197         screen->pipe.get_param = nv20_screen_get_param;
 198         screen->pipe.get_paramf = nv20_screen_get_paramf;
 199
 200         screen->pipe.is_format_supported = nv20_screen_is_format_supported;
 201
 202         screen->pipe.surface_map = nv20_surface_map;
 203         screen->pipe.surface_unmap = nv20_surface_unmap;
 204
 205         nv20_screen_init_miptree_functions(&screen->pipe);
 206         u_simple_screen_init(&screen->pipe);
 207
 208         return &screen->pipe;
 209 }
 210