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