src/gallium/drivers/nv04/nv04_screen.c

   1 #include "pipe/p_screen.h"
   2
   3 #include "nv04_context.h"
   4 #include "nv04_screen.h"
   5
   6 static const char *
   7 nv04_screen_get_name(struct pipe_screen *screen)
   8 {
   9         struct nv04_screen *nv04screen = nv04_screen(screen);
  10         struct nouveau_device *dev = nv04screen->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 nv04_screen_get_vendor(struct pipe_screen *screen)
  19 {
  20         return "nouveau";
  21 }
  22
  23 static int
  24 nv04_screen_get_param(struct pipe_screen *screen, int param)
  25 {
  26         switch (param) {
  27         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  28                 return 1;
  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 0;
  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 10;
  49         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  50                 return 0;
  51         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  52                 return 0;
  53         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
  54                 return 0;
  55         default:
  56                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  57                 return 0;
  58         }
  59 }
  60
  61 static float
  62 nv04_screen_get_paramf(struct pipe_screen *screen, int param)
  63 {
  64         switch (param) {
  65         case PIPE_CAP_MAX_LINE_WIDTH:
  66         case PIPE_CAP_MAX_LINE_WIDTH_AA:
  67                 return 0.0;
  68         case PIPE_CAP_MAX_POINT_WIDTH:
  69         case PIPE_CAP_MAX_POINT_WIDTH_AA:
  70                 return 0.0;
  71         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
  72                 return 0.0;
  73         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
  74                 return 0.0;
  75         default:
  76                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  77                 return 0.0;
  78         }
  79 }
  80
  81 static boolean
  82 nv04_screen_is_format_supported(struct pipe_screen *screen,
  83                                 enum pipe_format format,
  84                                 enum pipe_texture_target target,
  85                                 unsigned tex_usage, unsigned geom_flags)
  86 {
  87         if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
  88                 switch (format) {
  89                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  90                 case PIPE_FORMAT_R5G6B5_UNORM:
  91                 case PIPE_FORMAT_Z16_UNORM:
  92                         return TRUE;
  93                 default:
  94                         break;
  95                 }
  96         } else {
  97                 switch (format) {
  98                 case PIPE_FORMAT_A8R8G8B8_UNORM:
  99                 case PIPE_FORMAT_X8R8G8B8_UNORM:
 100                 case PIPE_FORMAT_A1R5G5B5_UNORM:
 101                 case PIPE_FORMAT_R5G6B5_UNORM:
 102                 case PIPE_FORMAT_L8_UNORM:
 103                 case PIPE_FORMAT_A8_UNORM:
 104                         return TRUE;
 105                 default:
 106                         break;
 107                 }
 108         }
 109
 110         return FALSE;
 111 }
 112
 113 static void *
 114 nv04_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 115                  unsigned flags )
 116 {
 117         struct pipe_winsys *ws = screen->winsys;
 118         void *map;
 119
 120         map = ws->buffer_map(ws, surface->buffer, flags);
 121         if (!map)
 122                 return NULL;
 123
 124         return map + surface->offset;
 125 }
 126
 127 static void
 128 nv04_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 129 {
 130         struct pipe_winsys *ws = screen->winsys;
 131
 132         ws->buffer_unmap(ws, surface->buffer);
 133 }
 134
 135 static void
 136 nv04_screen_destroy(struct pipe_screen *pscreen)
 137 {
 138         struct nv04_screen *screen = nv04_screen(pscreen);
 139         struct nouveau_winsys *nvws = screen->nvws;
 140
 141         nvws->notifier_free(&screen->sync);
 142         nvws->grobj_free(&screen->fahrenheit);
 143
 144         FREE(pscreen);
 145 }
 146
 147 struct pipe_screen *
 148 nv04_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
 149 {
 150         struct nv04_screen *screen = CALLOC_STRUCT(nv04_screen);
 151         unsigned fahrenheit_class = 0, sub3d_class = 0;
 152         unsigned chipset = nvws->channel->device->chipset;
 153         int ret;
 154
 155         if (!screen)
 156                 return NULL;
 157         screen->nvws = nvws;
 158
 159         if (chipset>=0x20) {
 160                 fahrenheit_class = 0;
 161                 sub3d_class = 0;
 162         } else if (chipset>=0x10) {
 163                 fahrenheit_class = NV10_DX5_TEXTURED_TRIANGLE;
 164                 sub3d_class = NV10_CONTEXT_SURFACES_3D;
 165         } else {
 166                 fahrenheit_class=NV04_DX5_TEXTURED_TRIANGLE;
 167                 sub3d_class = NV04_CONTEXT_SURFACES_3D;
 168         }
 169
 170         if (!fahrenheit_class) {
 171                 NOUVEAU_ERR("Unknown nv04 chipset: nv%02x\n", chipset);
 172                 return NULL;
 173         }
 174
 175         /* 3D object */
 176         ret = nvws->grobj_alloc(nvws, fahrenheit_class, &screen->fahrenheit);
 177         if (ret) {
 178                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
 179                 return NULL;
 180         }
 181
 182         /* 3D surface object */
 183         ret = nvws->grobj_alloc(nvws, sub3d_class, &screen->context_surfaces_3d);
 184         if (ret) {
 185                 NOUVEAU_ERR("Error creating 3D surface object: %d\n", ret);
 186                 return NULL;
 187         }
 188
 189         /* Notifier for sync purposes */
 190         ret = nvws->notifier_alloc(nvws, 1, &screen->sync);
 191         if (ret) {
 192                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
 193                 nv04_screen_destroy(&screen->pipe);
 194                 return NULL;
 195         }
 196
 197         screen->pipe.winsys = ws;
 198         screen->pipe.destroy = nv04_screen_destroy;
 199
 200         screen->pipe.get_name = nv04_screen_get_name;
 201         screen->pipe.get_vendor = nv04_screen_get_vendor;
 202         screen->pipe.get_param = nv04_screen_get_param;
 203         screen->pipe.get_paramf = nv04_screen_get_paramf;
 204
 205         screen->pipe.is_format_supported = nv04_screen_is_format_supported;
 206
 207         screen->pipe.surface_map = nv04_surface_map;
 208         screen->pipe.surface_unmap = nv04_surface_unmap;
 209
 210         nv04_screen_init_miptree_functions(&screen->pipe);
 211
 212         return &screen->pipe;
 213 }
 214