src/gallium/drivers/nv04/nv04_screen.c

   1 #include "pipe/p_screen.h"
   2 #include "util/u_simple_screen.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         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
  55                 return 0;
  56         default:
  57                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  58                 return 0;
  59         }
  60 }
  61
  62 static float
  63 nv04_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 0.0;
  69         case PIPE_CAP_MAX_POINT_WIDTH:
  70         case PIPE_CAP_MAX_POINT_WIDTH_AA:
  71                 return 0.0;
  72         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
  73                 return 0.0;
  74         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
  75                 return 0.0;
  76         default:
  77                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
  78                 return 0.0;
  79         }
  80 }
  81
  82 static boolean
  83 nv04_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_Z16_UNORM:
  93                         return TRUE;
  94                 default:
  95                         break;
  96                 }
  97         } else {
  98                 switch (format) {
  99                 case PIPE_FORMAT_A8R8G8B8_UNORM:
 100                 case PIPE_FORMAT_X8R8G8B8_UNORM:
 101                 case PIPE_FORMAT_A1R5G5B5_UNORM:
 102                 case PIPE_FORMAT_R5G6B5_UNORM:
 103                 case PIPE_FORMAT_L8_UNORM:
 104                 case PIPE_FORMAT_A8_UNORM:
 105                         return TRUE;
 106                 default:
 107                         break;
 108                 }
 109         }
 110
 111         return FALSE;
 112 }
 113
 114 static void *
 115 nv04_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 116                  unsigned flags )
 117 {
 118         struct pipe_winsys *ws = screen->winsys;
 119         void *map;
 120
 121         map = ws->buffer_map(ws, surface->buffer, flags);
 122         if (!map)
 123                 return NULL;
 124
 125         return map + surface->offset;
 126 }
 127
 128 static void
 129 nv04_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 130 {
 131         struct pipe_winsys *ws = screen->winsys;
 132
 133         ws->buffer_unmap(ws, surface->buffer);
 134 }
 135
 136 static void
 137 nv04_screen_destroy(struct pipe_screen *pscreen)
 138 {
 139         struct nv04_screen *screen = nv04_screen(pscreen);
 140         struct nouveau_winsys *nvws = screen->nvws;
 141
 142         nvws->notifier_free(&screen->sync);
 143         nvws->grobj_free(&screen->fahrenheit);
 144
 145         FREE(pscreen);
 146 }
 147
 148 struct pipe_screen *
 149 nv04_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
 150 {
 151         struct nv04_screen *screen = CALLOC_STRUCT(nv04_screen);
 152         unsigned fahrenheit_class = 0, sub3d_class = 0;
 153         unsigned chipset = nvws->channel->device->chipset;
 154         int ret;
 155
 156         if (!screen)
 157                 return NULL;
 158         screen->nvws = nvws;
 159
 160         if (chipset>=0x20) {
 161                 fahrenheit_class = 0;
 162                 sub3d_class = 0;
 163         } else if (chipset>=0x10) {
 164                 fahrenheit_class = NV10_DX5_TEXTURED_TRIANGLE;
 165                 sub3d_class = NV10_CONTEXT_SURFACES_3D;
 166         } else {
 167                 fahrenheit_class=NV04_DX5_TEXTURED_TRIANGLE;
 168                 sub3d_class = NV04_CONTEXT_SURFACES_3D;
 169         }
 170
 171         if (!fahrenheit_class) {
 172                 NOUVEAU_ERR("Unknown nv04 chipset: nv%02x\n", chipset);
 173                 return NULL;
 174         }
 175
 176         /* 3D object */
 177         ret = nvws->grobj_alloc(nvws, fahrenheit_class, &screen->fahrenheit);
 178         if (ret) {
 179                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
 180                 return NULL;
 181         }
 182
 183         /* 3D surface object */
 184         ret = nvws->grobj_alloc(nvws, sub3d_class, &screen->context_surfaces_3d);
 185         if (ret) {
 186                 NOUVEAU_ERR("Error creating 3D surface object: %d\n", ret);
 187                 return NULL;
 188         }
 189
 190         /* Notifier for sync purposes */
 191         ret = nvws->notifier_alloc(nvws, 1, &screen->sync);
 192         if (ret) {
 193                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
 194                 nv04_screen_destroy(&screen->pipe);
 195                 return NULL;
 196         }
 197
 198         screen->pipe.winsys = ws;
 199         screen->pipe.destroy = nv04_screen_destroy;
 200
 201         screen->pipe.get_name = nv04_screen_get_name;
 202         screen->pipe.get_vendor = nv04_screen_get_vendor;
 203         screen->pipe.get_param = nv04_screen_get_param;
 204         screen->pipe.get_paramf = nv04_screen_get_paramf;
 205
 206         screen->pipe.is_format_supported = nv04_screen_is_format_supported;
 207
 208         screen->pipe.surface_map = nv04_surface_map;
 209         screen->pipe.surface_unmap = nv04_surface_unmap;
 210
 211         nv04_screen_init_miptree_functions(&screen->pipe);
 212         u_simple_screen_init(&screen->pipe);
 213
 214         return &screen->pipe;
 215 }
 216