| #include "pipe/p_state.h" |
| #include "pipe/p_defines.h" |
| #include "pipe/p_inlines.h" |
| |
| #include "nv20_context.h" |
| #include "nv20_screen.h" |
| |
| static void |
| nv20_miptree_layout(struct nv20_miptree *nv20mt) |
| { |
| struct pipe_texture *pt = &nv20mt->base; |
| uint width = pt->width[0], height = pt->height[0]; |
| uint offset = 0; |
| int nr_faces, l, f; |
| uint wide_pitch = pt->tex_usage & (PIPE_TEXTURE_USAGE_SAMPLER | |
| PIPE_TEXTURE_USAGE_DEPTH_STENCIL | |
| PIPE_TEXTURE_USAGE_RENDER_TARGET | |
| PIPE_TEXTURE_USAGE_DISPLAY_TARGET | |
| PIPE_TEXTURE_USAGE_PRIMARY); |
| |
| if (pt->target == PIPE_TEXTURE_CUBE) { |
| nr_faces = 6; |
| } else { |
| nr_faces = 1; |
| } |
| |
| for (l = 0; l <= pt->last_level; l++) { |
| pt->width[l] = width; |
| pt->height[l] = height; |
| pt->nblocksx[l] = pf_get_nblocksx(&pt->block, width); |
| pt->nblocksy[l] = pf_get_nblocksy(&pt->block, height); |
| |
| if (wide_pitch && (pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR)) |
| nv20mt->level[l].pitch = align(pt->width[0] * pt->block.size, 64); |
| else |
| nv20mt->level[l].pitch = pt->width[l] * pt->block.size; |
| |
| nv20mt->level[l].image_offset = |
| CALLOC(nr_faces, sizeof(unsigned)); |
| |
| width = MAX2(1, width >> 1); |
| height = MAX2(1, height >> 1); |
| } |
| |
| for (f = 0; f < nr_faces; f++) { |
| for (l = 0; l < pt->last_level; l++) { |
| nv20mt->level[l].image_offset[f] = offset; |
| |
| if (!(pt->tex_usage & NOUVEAU_TEXTURE_USAGE_LINEAR) && |
| pt->width[l + 1] > 1 && pt->height[l + 1] > 1) |
| offset += align(nv20mt->level[l].pitch * pt->height[l], 64); |
| else |
| offset += nv20mt->level[l].pitch * pt->height[l]; |
| } |
| |
| nv20mt->level[l].image_offset[f] = offset; |
| offset += nv20mt->level[l].pitch * pt->height[l]; |
| } |
| |
| nv20mt->total_size = offset; |
| } |
| |
| static struct pipe_texture * |
| nv20_miptree_blanket(struct pipe_screen *pscreen, const struct pipe_texture *pt, |
| const unsigned *stride, struct pipe_buffer *pb) |
| { |
| struct nv20_miptree *mt; |
| |
| /* Only supports 2D, non-mipmapped textures for the moment */ |
| if (pt->target != PIPE_TEXTURE_2D || pt->last_level != 0 || |
| pt->depth[0] != 1) |
| return NULL; |
| |
| mt = CALLOC_STRUCT(nv20_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); |
| return &mt->base; |
| } |
| |
| static struct pipe_texture * |
| nv20_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt) |
| { |
| struct nv20_miptree *mt; |
| unsigned buf_usage = PIPE_BUFFER_USAGE_PIXEL | |
| NOUVEAU_BUFFER_USAGE_TEXTURE; |
| |
| mt = MALLOC(sizeof(struct nv20_miptree)); |
| if (!mt) |
| return NULL; |
| mt->base = *pt; |
| pipe_reference_init(&mt->base.reference, 1); |
| mt->base.screen = screen; |
| |
| /* Swizzled textures must be POT */ |
| if (pt->width[0] & (pt->width[0] - 1) || |
| pt->height[0] & (pt->height[0] - 1)) |
| mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; |
| else |
| if (pt->tex_usage & (PIPE_TEXTURE_USAGE_PRIMARY | |
| PIPE_TEXTURE_USAGE_DISPLAY_TARGET | |
| PIPE_TEXTURE_USAGE_DEPTH_STENCIL)) |
| mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; |
| else |
| if (pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC) |
| mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; |
| else { |
| switch (pt->format) { |
| /* TODO: Figure out which formats can be swizzled */ |
| case PIPE_FORMAT_A8R8G8B8_UNORM: |
| case PIPE_FORMAT_X8R8G8B8_UNORM: |
| case PIPE_FORMAT_R16_SNORM: |
| { |
| if (debug_get_bool_option("NOUVEAU_NO_SWIZZLE", FALSE)) |
| mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; |
| break; |
| } |
| default: |
| mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; |
| } |
| } |
| |
| if (pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC) |
| buf_usage |= PIPE_BUFFER_USAGE_CPU_READ_WRITE; |
| |
| nv20_miptree_layout(mt); |
| |
| mt->buffer = screen->buffer_create(screen, 256, buf_usage, mt->total_size); |
| if (!mt->buffer) { |
| FREE(mt); |
| return NULL; |
| } |
| |
| return &mt->base; |
| } |
| |
| static void |
| nv20_miptree_destroy(struct pipe_texture *pt) |
| { |
| struct nv20_miptree *nv20mt = (struct nv20_miptree *)pt; |
| int l; |
| |
| pipe_buffer_reference(&nv20mt->buffer, NULL); |
| for (l = 0; l <= pt->last_level; l++) { |
| if (nv20mt->level[l].image_offset) |
| FREE(nv20mt->level[l].image_offset); |
| } |
| } |
| |
| static struct pipe_surface * |
| nv20_miptree_surface_get(struct pipe_screen *screen, struct pipe_texture *pt, |
| unsigned face, unsigned level, unsigned zslice, |
| unsigned flags) |
| { |
| struct nv20_miptree *nv20mt = (struct nv20_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 = pt->width[level]; |
| ns->base.height = pt->height[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 = nv20mt->level[level].pitch; |
| |
| if (pt->target == PIPE_TEXTURE_CUBE) { |
| ns->base.offset = nv20mt->level[level].image_offset[face]; |
| } else |
| if (pt->target == PIPE_TEXTURE_3D) { |
| ns->base.offset = nv20mt->level[level].image_offset[zslice]; |
| } else { |
| ns->base.offset = nv20mt->level[level].image_offset[0]; |
| } |
| |
| return &ns->base; |
| } |
| |
| static void |
| nv20_miptree_surface_destroy(struct pipe_surface *ps) |
| { |
| pipe_texture_reference(&ps->texture, NULL); |
| FREE(ps); |
| } |
| |
| void nv20_screen_init_miptree_functions(struct pipe_screen *pscreen) |
| { |
| pscreen->texture_create = nv20_miptree_create; |
| pscreen->texture_blanket = nv20_miptree_blanket; |
| pscreen->texture_destroy = nv20_miptree_destroy; |
| pscreen->get_tex_surface = nv20_miptree_surface_get; |
| pscreen->tex_surface_destroy = nv20_miptree_surface_destroy; |
| } |
| |