src/gallium/drivers/nv20/nv20_screen.c

   1 #include "pipe/p_screen.h"
   2
   3 #include "nv20_context.h"
   4 #include "nv20_screen.h"
   5
   6 static int
   7 nv20_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 PIPE_CAP_TGSI_CONT_SUPPORTED:
  39                 return 0;
  40         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
  41                 return 0;
  42         case NOUVEAU_CAP_HW_VTXBUF:
  43         case NOUVEAU_CAP_HW_IDXBUF:
  44                 return 0;
  45         default:
  46                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  47                 return 0;
  48         }
  49 }
  50
  51 static float
  52 nv20_screen_get_paramf(struct pipe_screen *screen, int param)
  53 {
  54         switch (param) {
  55         case PIPE_CAP_MAX_LINE_WIDTH:
  56         case PIPE_CAP_MAX_LINE_WIDTH_AA:
  57                 return 10.0;
  58         case PIPE_CAP_MAX_POINT_WIDTH:
  59         case PIPE_CAP_MAX_POINT_WIDTH_AA:
  60                 return 64.0;
  61         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
  62                 return 2.0;
  63         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
  64                 return 4.0;
  65         default:
  66                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  67                 return 0.0;
  68         }
  69 }
  70
  71 static boolean
  72 nv20_screen_is_format_supported(struct pipe_screen *screen,
  73                                 enum pipe_format format,
  74                                 enum pipe_texture_target target,
  75                                 unsigned tex_usage, unsigned geom_flags)
  76 {
  77         if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
  78                 switch (format) {
  79                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  80                 case PIPE_FORMAT_R5G6B5_UNORM:
  81                         return TRUE;
  82                 default:
  83                          break;
  84                 }
  85         } else
  86         if (tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL) {
  87                 switch (format) {
  88                 case PIPE_FORMAT_Z24S8_UNORM:
  89                 case PIPE_FORMAT_Z24X8_UNORM:
  90                 case PIPE_FORMAT_Z16_UNORM:
  91                         return TRUE;
  92                 default:
  93                         break;
  94                 }
  95         } else {
  96                 switch (format) {
  97                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  98                 case PIPE_FORMAT_A1R5G5B5_UNORM:
  99                 case PIPE_FORMAT_A4R4G4B4_UNORM:
 100                 case PIPE_FORMAT_R5G6B5_UNORM:
 101                 case PIPE_FORMAT_L8_UNORM:
 102                 case PIPE_FORMAT_A8_UNORM:
 103                 case PIPE_FORMAT_I8_UNORM:
 104                         return TRUE;
 105                 default:
 106                         break;
 107                 }
 108         }
 109
 110         return FALSE;
 111 }
 112
 113 static void
 114 nv20_screen_destroy(struct pipe_screen *pscreen)
 115 {
 116         struct nv20_screen *screen = nv20_screen(pscreen);
 117
 118         nouveau_notifier_free(&screen->sync);
 119         nouveau_grobj_free(&screen->kelvin);
 120
 121         FREE(pscreen);
 122 }
 123
 124 static struct pipe_buffer *
 125 nv20_surface_buffer(struct pipe_surface *surf)
 126 {
 127         struct nv20_miptree *mt = (struct nv20_miptree *)surf->texture;
 128
 129         return mt->buffer;
 130 }
 131
 132 struct pipe_screen *
 133 nv20_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev)
 134 {
 135         struct nv20_screen *screen = CALLOC_STRUCT(nv20_screen);
 136         struct nouveau_channel *chan;
 137         struct pipe_screen *pscreen;
 138         unsigned kelvin_class = 0;
 139         int ret;
 140
 141         if (!screen)
 142                 return NULL;
 143         pscreen = &screen->base.base;
 144
 145         ret = nouveau_screen_init(&screen->base, dev);
 146         if (ret) {
 147                 nv20_screen_destroy(pscreen);
 148                 return NULL;
 149         }
 150         chan = screen->base.channel;
 151
 152         pscreen->winsys = ws;
 153         pscreen->destroy = nv20_screen_destroy;
 154         pscreen->get_param = nv20_screen_get_param;
 155         pscreen->get_paramf = nv20_screen_get_paramf;
 156         pscreen->is_format_supported = nv20_screen_is_format_supported;
 157
 158         nv20_screen_init_miptree_functions(pscreen);
 159         nv20_screen_init_transfer_functions(pscreen);
 160
 161         /* 3D object */
 162         if (dev->chipset >= 0x25)
 163                 kelvin_class = NV25TCL;
 164         else if (dev->chipset >= 0x20)
 165                 kelvin_class = NV20TCL;
 166
 167         if (!kelvin_class || dev->chipset >= 0x30) {
 168                 NOUVEAU_ERR("Unknown nv2x chipset: nv%02x\n", dev->chipset);
 169                 return NULL;
 170         }
 171
 172         ret = nouveau_grobj_alloc(chan, 0xbeef0097, kelvin_class,
 173                                   &screen->kelvin);
 174         if (ret) {
 175                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
 176                 return FALSE;
 177         }
 178         BIND_RING(chan, screen->kelvin, 7);
 179
 180         /* 2D engine setup */
 181         screen->eng2d = nv04_surface_2d_init(&screen->base);
 182         screen->eng2d->buf = nv20_surface_buffer;
 183
 184         /* Notifier for sync purposes */
 185         ret = nouveau_notifier_alloc(chan, 0xbeef0301, 1, &screen->sync);
 186         if (ret) {
 187                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
 188                 nv20_screen_destroy(pscreen);
 189                 return NULL;
 190         }
 191
 192         return pscreen;
 193 }
 194