| #include "pipe/p_state.h" |
| #include "pipe/p_defines.h" |
| #include "pipe/p_inlines.h" |
| #include "util/u_format.h" |
| #include "util/u_math.h" |
| |
| #include "nv10_context.h" |
| #include "nv10_screen.h" |
| |
| static void |
| nv10_miptree_layout(struct nv10_miptree *nv10mt) |
| { |
| struct pipe_texture *pt = &nv10mt->base; |
| boolean swizzled = FALSE; |
| uint width = pt->width0; |
| uint offset = 0; |
| int nr_faces, l, f; |
| |
| if (pt->target == PIPE_TEXTURE_CUBE) { |
| nr_faces = 6; |
| } else { |
| nr_faces = 1; |
| } |
| |
| for (l = 0; l <= pt->last_level; l++) { |
| if (swizzled) |
| nv10mt->level[l].pitch = util_format_get_stride(pt->format, width); |
| else |
| nv10mt->level[l].pitch = util_format_get_stride(pt->format, pt->width0); |
| nv10mt->level[l].pitch = (nv10mt->level[l].pitch + 63) & ~63; |
| |
| nv10mt->level[l].image_offset = |
| CALLOC(nr_faces, sizeof(unsigned)); |
| |
| width = u_minify(width, 1); |
| |
| } |
| |
| for (f = 0; f < nr_faces; f++) { |
| for (l = 0; l <= pt->last_level; l++) { |
| nv10mt->level[l].image_offset[f] = offset; |
| offset += nv10mt->level[l].pitch * u_minify(pt->height0, l); |
| } |
| } |
| |
| nv10mt->total_size = offset; |
| } |
| |
| static struct pipe_texture * |
| nv10_miptree_blanket(struct pipe_screen *pscreen, const struct pipe_texture *pt, |
| const unsigned *stride, struct pipe_buffer *pb) |
| { |
| struct nv10_miptree *mt; |
| |
| /* Only supports 2D, non-mipmapped textures for the moment */ |
| if (pt->target != PIPE_TEXTURE_2D || pt->last_level != 0 || |
| pt->depth0 != 1) |
| return NULL; |
| |
| mt = CALLOC_STRUCT(nv10_miptree); |
| if (!mt) |
| return NULL; |
| |
| mt->base = *pt; |
| pipe_reference_init(&mt->base.reference, 1); |
| mt->base.screen = pscreen; |
| mt->level[0].pitch = stride[0]; |
| mt->level[0].image_offset = CALLOC(1, sizeof(unsigned)); |
| |
| pipe_buffer_reference(&mt->buffer, pb); |
| mt->bo = nouveau_bo(mt->buffer); |
| return &mt->base; |
| } |
| |
| static struct pipe_texture * |
| nv10_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt) |
| { |
| struct nv10_miptree *mt; |
| |
| mt = MALLOC(sizeof(struct nv10_miptree)); |
| if (!mt) |
| return NULL; |
| mt->base = *pt; |
| pipe_reference_init(&mt->base.reference, 1); |
| mt->base.screen = screen; |
| |
| nv10_miptree_layout(mt); |
| |
| mt->buffer = screen->buffer_create(screen, 256, PIPE_BUFFER_USAGE_PIXEL, |
| mt->total_size); |
| if (!mt->buffer) { |
| FREE(mt); |
| return NULL; |
| } |
| mt->bo = nouveau_bo(mt->buffer); |
| |
| return &mt->base; |
| } |
| |
| static void |
| nv10_miptree_destroy(struct pipe_texture *pt) |
| { |
| struct nv10_miptree *nv10mt = (struct nv10_miptree *)pt; |
| int l; |
| |
| pipe_buffer_reference(&nv10mt->buffer, NULL); |
| for (l = 0; l <= pt->last_level; l++) { |
| if (nv10mt->level[l].image_offset) |
| FREE(nv10mt->level[l].image_offset); |
| } |
| FREE(nv10mt); |
| } |
| |
| static void |
| nv10_miptree_update(struct pipe_context *pipe, struct pipe_texture *mt, |
| uint face, uint levels) |
| { |
| } |
| |
| |
| static struct pipe_surface * |
| nv10_miptree_surface_get(struct pipe_screen *screen, struct pipe_texture *pt, |
| unsigned face, unsigned level, unsigned zslice, |
| unsigned flags) |
| { |
| struct nv10_miptree *nv10mt = (struct nv10_miptree *)pt; |
| struct nv04_surface *ns; |
| |
| ns = CALLOC_STRUCT(nv04_surface); |
| if (!ns) |
| return NULL; |
| pipe_texture_reference(&ns->base.texture, pt); |
| ns->base.format = pt->format; |
| ns->base.width = u_minify(pt->width0, level); |
| ns->base.height = u_minify(pt->height0, level); |
| ns->base.usage = flags; |
| pipe_reference_init(&ns->base.reference, 1); |
| ns->base.face = face; |
| ns->base.level = level; |
| ns->base.zslice = zslice; |
| ns->pitch = nv10mt->level[level].pitch; |
| |
| if (pt->target == PIPE_TEXTURE_CUBE) { |
| ns->base.offset = nv10mt->level[level].image_offset[face]; |
| } else { |
| ns->base.offset = nv10mt->level[level].image_offset[0]; |
| } |
| |
| return &ns->base; |
| } |
| |
| static void |
| nv10_miptree_surface_destroy(struct pipe_surface *surface) |
| { |
| } |
| |
| void nv10_screen_init_miptree_functions(struct pipe_screen *pscreen) |
| { |
| pscreen->texture_create = nv10_miptree_create; |
| pscreen->texture_blanket = nv10_miptree_blanket; |
| pscreen->texture_destroy = nv10_miptree_destroy; |
| pscreen->get_tex_surface = nv10_miptree_surface_get; |
| pscreen->tex_surface_destroy = nv10_miptree_surface_destroy; |
| } |
| |