src/gallium/drivers/nv10/nv10_screen.c

   1 #include "pipe/p_screen.h"
   2
   3 #include "nv10_context.h"
   4 #include "nv10_screen.h"
   5
   6 static int
   7 nv10_screen_get_param(struct pipe_screen *screen, int param)
   8 {
   9         switch (param) {
  10         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  11                 return 2;
  12         case PIPE_CAP_NPOT_TEXTURES:
  13                 return 0;
  14         case PIPE_CAP_TWO_SIDED_STENCIL:
  15                 return 0;
  16         case PIPE_CAP_GLSL:
  17                 return 0;
  18         case PIPE_CAP_S3TC:
  19                 return 0;
  20         case PIPE_CAP_ANISOTROPIC_FILTER:
  21                 return 1;
  22         case PIPE_CAP_POINT_SPRITE:
  23                 return 0;
  24         case PIPE_CAP_MAX_RENDER_TARGETS:
  25                 return 1;
  26         case PIPE_CAP_OCCLUSION_QUERY:
  27                 return 0;
  28         case PIPE_CAP_TEXTURE_SHADOW_MAP:
  29                 return 0;
  30         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
  31                 return 12;
  32         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  33                 return 0;
  34         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  35                 return 12;
  36         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
  37                 return 0;
  38         case NOUVEAU_CAP_HW_VTXBUF:
  39         case NOUVEAU_CAP_HW_IDXBUF:
  40                 return 0;
  41         default:
  42                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  43                 return 0;
  44         }
  45 }
  46
  47 static float
  48 nv10_screen_get_paramf(struct pipe_screen *screen, int param)
  49 {
  50         switch (param) {
  51         case PIPE_CAP_MAX_LINE_WIDTH:
  52         case PIPE_CAP_MAX_LINE_WIDTH_AA:
  53                 return 10.0;
  54         case PIPE_CAP_MAX_POINT_WIDTH:
  55         case PIPE_CAP_MAX_POINT_WIDTH_AA:
  56                 return 64.0;
  57         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
  58                 return 2.0;
  59         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
  60                 return 4.0;
  61         default:
  62                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  63                 return 0.0;
  64         }
  65 }
  66
  67 static boolean
  68 nv10_screen_is_format_supported(struct pipe_screen *screen,
  69                                 enum pipe_format format,
  70                                 enum pipe_texture_target target,
  71                                 unsigned tex_usage, unsigned geom_flags)
  72 {
  73         if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
  74                 switch (format) {
  75                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  76                 case PIPE_FORMAT_R5G6B5_UNORM:
  77                 case PIPE_FORMAT_Z24S8_UNORM:
  78                 case PIPE_FORMAT_Z16_UNORM:
  79                         return TRUE;
  80                 default:
  81                         break;
  82                 }
  83         } else {
  84                 switch (format) {
  85                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  86                 case PIPE_FORMAT_A1R5G5B5_UNORM:
  87                 case PIPE_FORMAT_A4R4G4B4_UNORM:
  88                 case PIPE_FORMAT_R5G6B5_UNORM:
  89                 case PIPE_FORMAT_L8_UNORM:
  90                 case PIPE_FORMAT_A8_UNORM:
  91                 case PIPE_FORMAT_I8_UNORM:
  92                         return TRUE;
  93                 default:
  94                         break;
  95                 }
  96         }
  97
  98         return FALSE;
  99 }
 100
 101 static void
 102 nv10_screen_destroy(struct pipe_screen *pscreen)
 103 {
 104         struct nv10_screen *screen = nv10_screen(pscreen);
 105
 106         nouveau_notifier_free(&screen->sync);
 107         nouveau_grobj_free(&screen->celsius);
 108
 109         FREE(pscreen);
 110 }
 111
 112 static struct pipe_buffer *
 113 nv10_surface_buffer(struct pipe_surface *surf)
 114 {
 115         struct nv10_miptree *mt = (struct nv10_miptree *)surf->texture;
 116
 117         return mt->buffer;
 118 }
 119
 120 struct pipe_screen *
 121 nv10_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev)
 122 {
 123         struct nv10_screen *screen = CALLOC_STRUCT(nv10_screen);
 124         struct nouveau_channel *chan;
 125         struct pipe_screen *pscreen;
 126         unsigned celsius_class;
 127         int ret;
 128
 129         if (!screen)
 130                 return NULL;
 131         pscreen = &screen->base.base;
 132
 133         ret = nouveau_screen_init(&screen->base, dev);
 134         if (ret) {
 135                 nv10_screen_destroy(pscreen);
 136                 return NULL;
 137         }
 138         chan = screen->base.channel;
 139
 140         pscreen->winsys = ws;
 141         pscreen->destroy = nv10_screen_destroy;
 142         pscreen->get_param = nv10_screen_get_param;
 143         pscreen->get_paramf = nv10_screen_get_paramf;
 144         pscreen->is_format_supported = nv10_screen_is_format_supported;
 145
 146         nv10_screen_init_miptree_functions(pscreen);
 147         nv10_screen_init_transfer_functions(pscreen);
 148
 149         /* 3D object */
 150         if (dev->chipset >= 0x20)
 151                 celsius_class = NV11TCL;
 152         else if (dev->chipset >= 0x17)
 153                 celsius_class = NV17TCL;
 154         else if (dev->chipset >= 0x11)
 155                 celsius_class = NV11TCL;
 156         else
 157                 celsius_class = NV10TCL;
 158
 159         if (!celsius_class) {
 160                 NOUVEAU_ERR("Unknown nv1x chipset: nv%02x\n", dev->chipset);
 161                 return NULL;
 162         }
 163
 164         ret = nouveau_grobj_alloc(chan, 0xbeef0001, celsius_class,
 165                                   &screen->celsius);
 166         if (ret) {
 167                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
 168                 return FALSE;
 169         }
 170         BIND_RING(chan, screen->celsius, 7);
 171
 172         /* 2D engine setup */
 173         screen->eng2d = nv04_surface_2d_init(&screen->base);
 174         screen->eng2d->buf = nv10_surface_buffer;
 175
 176         /* Notifier for sync purposes */
 177         ret = nouveau_notifier_alloc(chan, 0xbeef0301, 1, &screen->sync);
 178         if (ret) {
 179                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
 180                 nv10_screen_destroy(pscreen);
 181                 return NULL;
 182         }
 183
 184         return pscreen;
 185 }
 186