src/gallium/drivers/nv04/nv04_screen.c

   1 #include "pipe/p_screen.h"
   2 #include "pipe/p_util.h"
   3
   4 #include "nv04_context.h"
   5 #include "nv04_screen.h"
   6
   7 static const char *
   8 nv04_screen_get_name(struct pipe_screen *screen)
   9 {
  10         struct nv04_screen *nv04screen = nv04_screen(screen);
  11         struct nouveau_device *dev = nv04screen->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 nv04_screen_get_vendor(struct pipe_screen *screen)
  20 {
  21         return "nouveau";
  22 }
  23
  24 static int
  25 nv04_screen_get_param(struct pipe_screen *screen, int param)
  26 {
  27         switch (param) {
  28         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  29                 return 1;
  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 0;
  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 10;
  50         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  51                 return 0;
  52         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  53                 return 0;
  54         default:
  55                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  56                 return 0;
  57         }
  58 }
  59
  60 static float
  61 nv04_screen_get_paramf(struct pipe_screen *screen, int param)
  62 {
  63         switch (param) {
  64         case PIPE_CAP_MAX_LINE_WIDTH:
  65         case PIPE_CAP_MAX_LINE_WIDTH_AA:
  66                 return 0.0;
  67         case PIPE_CAP_MAX_POINT_WIDTH:
  68         case PIPE_CAP_MAX_POINT_WIDTH_AA:
  69                 return 0.0;
  70         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
  71                 return 0.0;
  72         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
  73                 return 0.0;
  74         default:
  75                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  76                 return 0.0;
  77         }
  78 }
  79
  80 static boolean
  81 nv04_screen_is_format_supported(struct pipe_screen *screen,
  82                                 enum pipe_format format,
  83                                 enum pipe_texture_target target,
  84                                 unsigned tex_usage, unsigned geom_flags)
  85 {
  86         if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
  87                 switch (format) {
  88                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  89                 case PIPE_FORMAT_R5G6B5_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_X8R8G8B8_UNORM:
  99                 case PIPE_FORMAT_A1R5G5B5_UNORM:
 100                 case PIPE_FORMAT_R5G6B5_UNORM:
 101                 case PIPE_FORMAT_L8_UNORM:
 102                 case PIPE_FORMAT_A8_UNORM:
 103                         return TRUE;
 104                 default:
 105                         break;
 106                 }
 107         }
 108
 109         return FALSE;
 110 }
 111
 112 static void *
 113 nv04_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 114                  unsigned flags )
 115 {
 116         struct pipe_winsys *ws = screen->winsys;
 117         void *map;
 118
 119         map = ws->buffer_map(ws, surface->buffer, flags);
 120         if (!map)
 121                 return NULL;
 122
 123         return map + surface->offset;
 124 }
 125
 126 static void
 127 nv04_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 128 {
 129         struct pipe_winsys *ws = screen->winsys;
 130
 131         ws->buffer_unmap(ws, surface->buffer);
 132 }
 133
 134 static void
 135 nv04_screen_destroy(struct pipe_screen *pscreen)
 136 {
 137         struct nv04_screen *screen = nv04_screen(pscreen);
 138         struct nouveau_winsys *nvws = screen->nvws;
 139
 140         nvws->notifier_free(&screen->sync);
 141         nvws->grobj_free(&screen->fahrenheit);
 142
 143         FREE(pscreen);
 144 }
 145
 146 struct pipe_screen *
 147 nv04_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
 148 {
 149         struct nv04_screen *screen = CALLOC_STRUCT(nv04_screen);
 150         unsigned fahrenheit_class = 0, sub3d_class = 0;
 151         unsigned chipset = nvws->channel->device->chipset;
 152         int ret;
 153
 154         if (!screen)
 155                 return NULL;
 156         screen->nvws = nvws;
 157
 158         if (chipset>=0x20) {
 159                 fahrenheit_class = 0;
 160                 sub3d_class = 0;
 161         } else if (chipset>=0x10) {
 162                 fahrenheit_class = NV10_DX5_TEXTURED_TRIANGLE;
 163                 sub3d_class = NV10_CONTEXT_SURFACES_3D;
 164         } else {
 165                 fahrenheit_class=NV04_DX5_TEXTURED_TRIANGLE;
 166                 sub3d_class = NV04_CONTEXT_SURFACES_3D;
 167         }
 168
 169         if (!fahrenheit_class) {
 170                 NOUVEAU_ERR("Unknown nv04 chipset: nv%02x\n", chipset);
 171                 return NULL;
 172         }
 173
 174         /* 3D object */
 175         ret = nvws->grobj_alloc(nvws, fahrenheit_class, &screen->fahrenheit);
 176         if (ret) {
 177                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
 178                 return NULL;
 179         }
 180
 181         /* 3D surface object */
 182         ret = nvws->grobj_alloc(nvws, sub3d_class, &screen->context_surfaces_3d);
 183         if (ret) {
 184                 NOUVEAU_ERR("Error creating 3D surface object: %d\n", ret);
 185                 return NULL;
 186         }
 187
 188         /* Notifier for sync purposes */
 189         ret = nvws->notifier_alloc(nvws, 1, &screen->sync);
 190         if (ret) {
 191                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
 192                 nv04_screen_destroy(&screen->pipe);
 193                 return NULL;
 194         }
 195
 196         screen->pipe.winsys = ws;
 197         screen->pipe.destroy = nv04_screen_destroy;
 198
 199         screen->pipe.get_name = nv04_screen_get_name;
 200         screen->pipe.get_vendor = nv04_screen_get_vendor;
 201         screen->pipe.get_param = nv04_screen_get_param;
 202         screen->pipe.get_paramf = nv04_screen_get_paramf;
 203
 204         screen->pipe.is_format_supported = nv04_screen_is_format_supported;
 205
 206         screen->pipe.surface_map = nv04_surface_map;
 207         screen->pipe.surface_unmap = nv04_surface_unmap;
 208
 209         nv04_screen_init_miptree_functions(&screen->pipe);
 210
 211         return &screen->pipe;
 212 }
 213