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 const char *
   7 nv20_screen_get_name(struct pipe_screen *screen)
   8 {
   9         struct nv20_screen *nv20screen = nv20_screen(screen);
  10         struct nouveau_device *dev = nv20screen->nvws->channel->device;
  11         static char buffer[128];
  12
  13         snprintf(buffer, sizeof(buffer), "NV%02X", dev->chipset);
  14         return buffer;
  15 }
  16
  17 static const char *
  18 nv20_screen_get_vendor(struct pipe_screen *screen)
  19 {
  20         return "nouveau";
  21 }
  22
  23 static int
  24 nv20_screen_get_param(struct pipe_screen *screen, int param)
  25 {
  26         switch (param) {
  27         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  28                 return 2;
  29         case PIPE_CAP_NPOT_TEXTURES:
  30                 return 0;
  31         case PIPE_CAP_TWO_SIDED_STENCIL:
  32                 return 0;
  33         case PIPE_CAP_GLSL:
  34                 return 0;
  35         case PIPE_CAP_S3TC:
  36                 return 0;
  37         case PIPE_CAP_ANISOTROPIC_FILTER:
  38                 return 1;
  39         case PIPE_CAP_POINT_SPRITE:
  40                 return 0;
  41         case PIPE_CAP_MAX_RENDER_TARGETS:
  42                 return 1;
  43         case PIPE_CAP_OCCLUSION_QUERY:
  44                 return 0;
  45         case PIPE_CAP_TEXTURE_SHADOW_MAP:
  46                 return 0;
  47         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
  48                 return 12;
  49         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  50                 return 0;
  51         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  52                 return 12;
  53         case NOUVEAU_CAP_HW_VTXBUF:
  54         case NOUVEAU_CAP_HW_IDXBUF:
  55                 return 0;
  56         default:
  57                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  58                 return 0;
  59         }
  60 }
  61
  62 static float
  63 nv20_screen_get_paramf(struct pipe_screen *screen, int param)
  64 {
  65         switch (param) {
  66         case PIPE_CAP_MAX_LINE_WIDTH:
  67         case PIPE_CAP_MAX_LINE_WIDTH_AA:
  68                 return 10.0;
  69         case PIPE_CAP_MAX_POINT_WIDTH:
  70         case PIPE_CAP_MAX_POINT_WIDTH_AA:
  71                 return 64.0;
  72         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
  73                 return 2.0;
  74         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
  75                 return 4.0;
  76         default:
  77                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  78                 return 0.0;
  79         }
  80 }
  81
  82 static boolean
  83 nv20_screen_is_format_supported(struct pipe_screen *screen,
  84                                 enum pipe_format format,
  85                                 enum pipe_texture_target target,
  86                                 unsigned tex_usage, unsigned geom_flags)
  87 {
  88         if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
  89                 switch (format) {
  90                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  91                 case PIPE_FORMAT_R5G6B5_UNORM:
  92                 case PIPE_FORMAT_Z24S8_UNORM:
  93                 case PIPE_FORMAT_Z16_UNORM:
  94                         return TRUE;
  95                 default:
  96                         break;
  97                 }
  98         } else {
  99                 switch (format) {
 100                 case PIPE_FORMAT_A8R8G8B8_UNORM:
 101                 case PIPE_FORMAT_A1R5G5B5_UNORM:
 102                 case PIPE_FORMAT_A4R4G4B4_UNORM:
 103                 case PIPE_FORMAT_R5G6B5_UNORM:
 104                 case PIPE_FORMAT_L8_UNORM:
 105                 case PIPE_FORMAT_A8_UNORM:
 106                 case PIPE_FORMAT_I8_UNORM:
 107                         return TRUE;
 108                 default:
 109                         break;
 110                 }
 111         }
 112
 113         return FALSE;
 114 }
 115
 116 static void *
 117 nv20_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 118                  unsigned flags )
 119 {
 120         struct pipe_winsys *ws = screen->winsys;
 121         void *map;
 122
 123         map = ws->buffer_map(ws, surface->buffer, flags);
 124         if (!map)
 125                 return NULL;
 126
 127         return map + surface->offset;
 128 }
 129
 130 static void
 131 nv20_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 132 {
 133         struct pipe_winsys *ws = screen->winsys;
 134
 135         ws->buffer_unmap(ws, surface->buffer);
 136 }
 137
 138 static void
 139 nv20_screen_destroy(struct pipe_screen *pscreen)
 140 {
 141         struct nv20_screen *screen = nv20_screen(pscreen);
 142         struct nouveau_winsys *nvws = screen->nvws;
 143
 144         nvws->notifier_free(&screen->sync);
 145         nvws->grobj_free(&screen->kelvin);
 146
 147         FREE(pscreen);
 148 }
 149
 150 struct pipe_screen *
 151 nv20_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
 152 {
 153         struct nv20_screen *screen = CALLOC_STRUCT(nv20_screen);
 154         unsigned celsius_class;
 155         unsigned chipset = nvws->channel->device->chipset;
 156         int ret;
 157
 158         if (!screen)
 159                 return NULL;
 160         screen->nvws = nvws;
 161
 162         /* 3D object */
 163         if (chipset>=0x20)
 164                 celsius_class=NV11TCL;
 165         else if (chipset>=0x17)
 166                 celsius_class=NV17TCL;
 167         else if (chipset>=0x11)
 168                 celsius_class=NV11TCL;
 169         else
 170                 celsius_class=NV10TCL;
 171
 172         if (!celsius_class) {
 173                 NOUVEAU_ERR("Unknown nv1x chipset: nv%02x\n", chipset);
 174                 return NULL;
 175         }
 176
 177         ret = nvws->grobj_alloc(nvws, celsius_class, &screen->kelvin);
 178         if (ret) {
 179                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
 180                 return FALSE;
 181         }
 182
 183         /* Notifier for sync purposes */
 184         ret = nvws->notifier_alloc(nvws, 1, &screen->sync);
 185         if (ret) {
 186                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
 187                 nv20_screen_destroy(&screen->pipe);
 188                 return NULL;
 189         }
 190
 191         screen->pipe.winsys = ws;
 192         screen->pipe.destroy = nv20_screen_destroy;
 193
 194         screen->pipe.get_name = nv20_screen_get_name;
 195         screen->pipe.get_vendor = nv20_screen_get_vendor;
 196         screen->pipe.get_param = nv20_screen_get_param;
 197         screen->pipe.get_paramf = nv20_screen_get_paramf;
 198
 199         screen->pipe.is_format_supported = nv20_screen_is_format_supported;
 200
 201         screen->pipe.surface_map = nv20_surface_map;
 202         screen->pipe.surface_unmap = nv20_surface_unmap;
 203
 204         nv20_screen_init_miptree_functions(&screen->pipe);
 205
 206         return &screen->pipe;
 207 }
 208