/********************************************************** * Copyright 2008-2009 VMware, Inc. All rights reserved. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, * modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * **********************************************************/ #include "svga_cmd.h" #include "pipe/p_state.h" #include "pipe/p_defines.h" #include "util/u_inlines.h" #include "os/os_thread.h" #include "util/format/u_format.h" #include "util/u_math.h" #include "util/u_memory.h" #include "util/u_string.h" #include "svga_format.h" #include "svga_screen.h" #include "svga_context.h" #include "svga_resource_texture.h" #include "svga_sampler_view.h" #include "svga_debug.h" #include "svga_surface.h" void svga_debug_describe_sampler_view(char *buf, const struct svga_sampler_view *sv) { char res[128]; debug_describe_resource(res, sv->texture); sprintf(buf, "svga_sampler_view<%s,[%u,%u]>", res, sv->min_lod, sv->max_lod); } struct svga_sampler_view * svga_get_tex_sampler_view(struct pipe_context *pipe, struct pipe_resource *pt, unsigned min_lod, unsigned max_lod) { struct svga_context *svga = svga_context(pipe); struct svga_screen *ss = svga_screen(pipe->screen); struct svga_texture *tex = svga_texture(pt); struct svga_sampler_view *sv = NULL; SVGA3dSurface1Flags flags = SVGA3D_SURFACE_HINT_TEXTURE; SVGA3dSurfaceFormat format = svga_translate_format(ss, pt->format, PIPE_BIND_SAMPLER_VIEW); boolean view = TRUE; assert(pt); assert(min_lod <= max_lod); assert(max_lod <= pt->last_level); assert(!svga_have_vgpu10(svga)); /* Is a view needed */ { /* * Can't control max lod. For first level views and when we only * look at one level we disable mip filtering to achive the same * results as a view. */ if (min_lod == 0 && max_lod >= pt->last_level) view = FALSE; if (ss->debug.no_sampler_view) view = FALSE; if (ss->debug.force_sampler_view) view = TRUE; } /* First try the cache */ if (view) { mtx_lock(&ss->tex_mutex); if (tex->cached_view && tex->cached_view->min_lod == min_lod && tex->cached_view->max_lod == max_lod) { svga_sampler_view_reference(&sv, tex->cached_view); mtx_unlock(&ss->tex_mutex); SVGA_DBG(DEBUG_VIEWS, "svga: Sampler view: reuse %p, %u %u, last %u\n", pt, min_lod, max_lod, pt->last_level); svga_validate_sampler_view(svga_context(pipe), sv); return sv; } mtx_unlock(&ss->tex_mutex); } sv = CALLOC_STRUCT(svga_sampler_view); if (!sv) return NULL; pipe_reference_init(&sv->reference, 1); /* Note: we're not refcounting the texture resource here to avoid * a circular dependency. */ sv->texture = pt; sv->min_lod = min_lod; sv->max_lod = max_lod; /* No view needed just use the whole texture */ if (!view) { SVGA_DBG(DEBUG_VIEWS, "svga: Sampler view: no %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n", pt, min_lod, max_lod, max_lod - min_lod + 1, pt->width0, pt->height0, pt->depth0, pt->last_level); sv->key.cachable = 0; sv->handle = tex->handle; debug_reference(&sv->reference, (debug_reference_descriptor)svga_debug_describe_sampler_view, 0); return sv; } SVGA_DBG(DEBUG_VIEWS, "svga: Sampler view: yes %p, mips %u..%u, nr %u, size (%ux%ux%u), last %u\n", pt, min_lod, max_lod, max_lod - min_lod + 1, pt->width0, pt->height0, pt->depth0, pt->last_level); sv->age = tex->age; sv->handle = svga_texture_view_surface(svga, tex, PIPE_BIND_SAMPLER_VIEW, flags, format, min_lod, max_lod - min_lod + 1, -1, 1, -1, FALSE, &sv->key); if (!sv->handle) { sv->key.cachable = 0; sv->handle = tex->handle; debug_reference(&sv->reference, (debug_reference_descriptor) svga_debug_describe_sampler_view, 0); return sv; } mtx_lock(&ss->tex_mutex); svga_sampler_view_reference(&tex->cached_view, sv); mtx_unlock(&ss->tex_mutex); debug_reference(&sv->reference, (debug_reference_descriptor) svga_debug_describe_sampler_view, 0); return sv; } void svga_validate_sampler_view(struct svga_context *svga, struct svga_sampler_view *v) { struct svga_texture *tex = svga_texture(v->texture); unsigned numFaces; unsigned age = 0; int i; unsigned k; assert(svga); assert(!svga_have_vgpu10(svga)); if (v->handle == tex->handle) return; age = tex->age; if (tex->b.b.target == PIPE_TEXTURE_CUBE) numFaces = 6; else numFaces = 1; for (i = v->min_lod; i <= v->max_lod; i++) { for (k = 0; k < numFaces; k++) { assert(i < ARRAY_SIZE(tex->view_age)); if (v->age < tex->view_age[i]) svga_texture_copy_handle(svga, tex->handle, 0, 0, 0, i, k, v->handle, 0, 0, 0, i - v->min_lod, k, u_minify(tex->b.b.width0, i), u_minify(tex->b.b.height0, i), u_minify(tex->b.b.depth0, i)); } } v->age = age; } void svga_destroy_sampler_view_priv(struct svga_sampler_view *v) { struct svga_texture *tex = svga_texture(v->texture); if (v->handle != tex->handle) { struct svga_screen *ss = svga_screen(v->texture->screen); SVGA_DBG(DEBUG_DMA, "unref sid %p (sampler view)\n", v->handle); svga_screen_surface_destroy(ss, &v->key, &v->handle); } /* Note: we're not refcounting the texture resource here to avoid * a circular dependency. */ v->texture = NULL; FREE(v); }