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_screen_destroy(struct pipe_screen *pscreen)
 121 {
 122         struct nv20_screen *screen = nv20_screen(pscreen);
 123         struct nouveau_winsys *nvws = screen->nvws;
 124
 125         nvws->notifier_free(&screen->sync);
 126         nvws->grobj_free(&screen->kelvin);
 127
 128         FREE(pscreen);
 129 }
 130
 131 static struct pipe_buffer *
 132 nv20_surface_buffer(struct pipe_surface *surf)
 133 {
 134         struct nv20_miptree *mt = (struct nv20_miptree *)surf->texture;
 135
 136         return mt->buffer;
 137 }
 138
 139 struct pipe_screen *
 140 nv20_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
 141 {
 142         struct nv20_screen *screen = CALLOC_STRUCT(nv20_screen);
 143         unsigned kelvin_class = 0;
 144         unsigned chipset = nvws->channel->device->chipset;
 145         int ret;
 146
 147         if (!screen)
 148                 return NULL;
 149         screen->nvws = nvws;
 150
 151         /* 2D engine setup */
 152         screen->eng2d = nv04_surface_2d_init(nvws);
 153         screen->eng2d->buf = nv20_surface_buffer;
 154
 155         /* 3D object */
 156         if (chipset >= 0x25)
 157                 kelvin_class = NV25TCL;
 158         else if (chipset >= 0x20)
 159                 kelvin_class = NV20TCL;
 160
 161         if (!kelvin_class || chipset >= 0x30) {
 162                 NOUVEAU_ERR("Unknown nv2x chipset: nv%02x\n", chipset);
 163                 return NULL;
 164         }
 165
 166         ret = nvws->grobj_alloc(nvws, kelvin_class, &screen->kelvin);
 167         if (ret) {
 168                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
 169                 return FALSE;
 170         }
 171
 172         /* Notifier for sync purposes */
 173         ret = nvws->notifier_alloc(nvws, 1, &screen->sync);
 174         if (ret) {
 175                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
 176                 nv20_screen_destroy(&screen->pipe);
 177                 return NULL;
 178         }
 179
 180         screen->pipe.winsys = ws;
 181         screen->pipe.destroy = nv20_screen_destroy;
 182
 183         screen->pipe.get_name = nv20_screen_get_name;
 184         screen->pipe.get_vendor = nv20_screen_get_vendor;
 185         screen->pipe.get_param = nv20_screen_get_param;
 186         screen->pipe.get_paramf = nv20_screen_get_paramf;
 187
 188         screen->pipe.is_format_supported = nv20_screen_is_format_supported;
 189
 190         nv20_screen_init_miptree_functions(&screen->pipe);
 191         nv20_screen_init_transfer_functions(&screen->pipe);
 192         u_simple_screen_init(&screen->pipe);
 193
 194         return &screen->pipe;
 195 }
 196