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-rw-r--r--src/gallium/auxiliary/util/u_gen_mipmap.c540
-rw-r--r--src/gallium/auxiliary/util/u_gen_mipmap.h23
2 files changed, 70 insertions, 493 deletions
diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.c b/src/gallium/auxiliary/util/u_gen_mipmap.c
index a2f42189fcd..aa8eaebb679 100644
--- a/src/gallium/auxiliary/util/u_gen_mipmap.c
+++ b/src/gallium/auxiliary/util/u_gen_mipmap.c
@@ -3,6 +3,7 @@
* Copyright 2008 VMware, Inc.
* All Rights Reserved.
* Copyright 2008 VMware, Inc. All rights reserved.
+ * Copyright 2014 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
@@ -30,509 +31,98 @@
* @file
* Mipmap generation utility
*
- * @author Brian Paul
+ * @author Brian Paul, Marek Olšák
*/
-#include "pipe/p_context.h"
-#include "util/u_debug.h"
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "pipe/p_shader_tokens.h"
-#include "pipe/p_state.h"
-
-#include "util/u_format.h"
-#include "util/u_memory.h"
-#include "util/u_draw_quad.h"
#include "util/u_gen_mipmap.h"
-#include "util/u_simple_shaders.h"
-#include "util/u_math.h"
-#include "util/u_texture.h"
-#include "util/u_half.h"
-#include "util/u_surface.h"
-
-#include "cso_cache/cso_context.h"
-
-
-struct gen_mipmap_state
-{
- struct pipe_context *pipe;
- struct cso_context *cso;
-
- struct pipe_blend_state blend_keep_color, blend_write_color;
- struct pipe_depth_stencil_alpha_state dsa_keep_depth, dsa_write_depth;
- struct pipe_rasterizer_state rasterizer;
- struct pipe_sampler_state sampler;
- struct pipe_vertex_element velem[2];
-
- void *vs;
-
- /** Not all are used, but simplifies code */
- void *fs_color[TGSI_TEXTURE_COUNT];
- void *fs_depth[TGSI_TEXTURE_COUNT];
-
- struct pipe_resource *vbuf; /**< quad vertices */
- unsigned vbuf_slot;
-
- float vertices[4][2][4]; /**< vertex/texcoords for quad */
-};
-
-
-/**
- * Create a mipmap generation context.
- * The idea is to create one of these and re-use it each time we need to
- * generate a mipmap.
- */
-struct gen_mipmap_state *
-util_create_gen_mipmap(struct pipe_context *pipe,
- struct cso_context *cso)
-{
- struct gen_mipmap_state *ctx;
- uint i;
-
- ctx = CALLOC_STRUCT(gen_mipmap_state);
- if (!ctx)
- return NULL;
-
- ctx->pipe = pipe;
- ctx->cso = cso;
-
- /* disabled blending/masking */
- memset(&ctx->blend_keep_color, 0, sizeof(ctx->blend_keep_color));
- memset(&ctx->blend_write_color, 0, sizeof(ctx->blend_write_color));
- ctx->blend_write_color.rt[0].colormask = PIPE_MASK_RGBA;
-
- /* no-op depth/stencil/alpha */
- memset(&ctx->dsa_keep_depth, 0, sizeof(ctx->dsa_keep_depth));
- memset(&ctx->dsa_write_depth, 0, sizeof(ctx->dsa_write_depth));
- ctx->dsa_write_depth.depth.enabled = 1;
- ctx->dsa_write_depth.depth.func = PIPE_FUNC_ALWAYS;
- ctx->dsa_write_depth.depth.writemask = 1;
-
- /* rasterizer */
- memset(&ctx->rasterizer, 0, sizeof(ctx->rasterizer));
- ctx->rasterizer.cull_face = PIPE_FACE_NONE;
- ctx->rasterizer.half_pixel_center = 1;
- ctx->rasterizer.bottom_edge_rule = 1;
- ctx->rasterizer.depth_clip = 1;
-
- /* sampler state */
- memset(&ctx->sampler, 0, sizeof(ctx->sampler));
- ctx->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- ctx->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- ctx->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- ctx->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
- ctx->sampler.normalized_coords = 1;
-
- /* vertex elements state */
- memset(&ctx->velem[0], 0, sizeof(ctx->velem[0]) * 2);
- for (i = 0; i < 2; i++) {
- ctx->velem[i].src_offset = i * 4 * sizeof(float);
- ctx->velem[i].instance_divisor = 0;
- ctx->velem[i].vertex_buffer_index = cso_get_aux_vertex_buffer_slot(cso);
- ctx->velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
- }
-
- /* vertex data that doesn't change */
- for (i = 0; i < 4; i++) {
- ctx->vertices[i][0][2] = 0.0f; /* z */
- ctx->vertices[i][0][3] = 1.0f; /* w */
- ctx->vertices[i][1][3] = 1.0f; /* q */
- }
-
- /* Note: the actual vertex buffer is allocated as needed below */
-
- return ctx;
-}
-
-
-/**
- * Helper function to set the fragment shaders.
- */
-static INLINE void
-set_fragment_shader(struct gen_mipmap_state *ctx, uint type,
- boolean output_depth)
-{
- if (output_depth) {
- if (!ctx->fs_depth[type])
- ctx->fs_depth[type] =
- util_make_fragment_tex_shader_writedepth(ctx->pipe, type,
- TGSI_INTERPOLATE_LINEAR);
-
- cso_set_fragment_shader_handle(ctx->cso, ctx->fs_depth[type]);
- }
- else {
- if (!ctx->fs_color[type])
- ctx->fs_color[type] =
- util_make_fragment_tex_shader(ctx->pipe, type,
- TGSI_INTERPOLATE_LINEAR);
-
- cso_set_fragment_shader_handle(ctx->cso, ctx->fs_color[type]);
- }
-}
-
-
-/**
- * Helper function to set the vertex shader.
- */
-static INLINE void
-set_vertex_shader(struct gen_mipmap_state *ctx)
-{
- /* vertex shader - still required to provide the linkage between
- * fragment shader input semantics and vertex_element/buffers.
- */
- if (!ctx->vs)
- {
- const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
- TGSI_SEMANTIC_GENERIC };
- const uint semantic_indexes[] = { 0, 0 };
- ctx->vs = util_make_vertex_passthrough_shader(ctx->pipe, 2,
- semantic_names,
- semantic_indexes);
- }
-
- cso_set_vertex_shader_handle(ctx->cso, ctx->vs);
-}
-
-
-/**
- * Get next "slot" of vertex space in the vertex buffer.
- * We're allocating one large vertex buffer and using it piece by piece.
- */
-static unsigned
-get_next_slot(struct gen_mipmap_state *ctx)
-{
- const unsigned max_slots = 4096 / sizeof ctx->vertices;
-
- if (ctx->vbuf_slot >= max_slots) {
- pipe_resource_reference(&ctx->vbuf, NULL);
- ctx->vbuf_slot = 0;
- }
-
- if (!ctx->vbuf) {
- ctx->vbuf = pipe_buffer_create(ctx->pipe->screen,
- PIPE_BIND_VERTEX_BUFFER,
- PIPE_USAGE_STREAM,
- max_slots * sizeof ctx->vertices);
- }
-
- return ctx->vbuf_slot++ * sizeof ctx->vertices;
-}
-
-
-static unsigned
-set_vertex_data(struct gen_mipmap_state *ctx,
- enum pipe_texture_target tex_target,
- uint face, float r)
-{
- unsigned offset;
-
- /* vert[0].position */
- ctx->vertices[0][0][0] = -1.0f; /*x*/
- ctx->vertices[0][0][1] = -1.0f; /*y*/
-
- /* vert[1].position */
- ctx->vertices[1][0][0] = 1.0f;
- ctx->vertices[1][0][1] = -1.0f;
-
- /* vert[2].position */
- ctx->vertices[2][0][0] = 1.0f;
- ctx->vertices[2][0][1] = 1.0f;
-
- /* vert[3].position */
- ctx->vertices[3][0][0] = -1.0f;
- ctx->vertices[3][0][1] = 1.0f;
-
- /* Setup vertex texcoords. This is a little tricky for cube maps. */
- if (tex_target == PIPE_TEXTURE_CUBE ||
- tex_target == PIPE_TEXTURE_CUBE_ARRAY) {
- static const float st[4][2] = {
- {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f}
- };
-
- util_map_texcoords2d_onto_cubemap(face, &st[0][0], 2,
- &ctx->vertices[0][1][0], 8,
- FALSE);
-
- /* set the layer for cube arrays */
- ctx->vertices[0][1][3] = r;
- ctx->vertices[1][1][3] = r;
- ctx->vertices[2][1][3] = r;
- ctx->vertices[3][1][3] = r;
- }
- else if (tex_target == PIPE_TEXTURE_1D_ARRAY) {
- /* 1D texture array */
- ctx->vertices[0][1][0] = 0.0f; /*s*/
- ctx->vertices[0][1][1] = r; /*t*/
- ctx->vertices[0][1][2] = 0.0f; /*r*/
-
- ctx->vertices[1][1][0] = 1.0f;
- ctx->vertices[1][1][1] = r;
- ctx->vertices[1][1][2] = 0.0f;
-
- ctx->vertices[2][1][0] = 1.0f;
- ctx->vertices[2][1][1] = r;
- ctx->vertices[2][1][2] = 0.0f;
-
- ctx->vertices[3][1][0] = 0.0f;
- ctx->vertices[3][1][1] = r;
- ctx->vertices[3][1][2] = 0.0f;
- } else {
- /* 1D/2D/3D/2D array */
- ctx->vertices[0][1][0] = 0.0f; /*s*/
- ctx->vertices[0][1][1] = 0.0f; /*t*/
- ctx->vertices[0][1][2] = r; /*r*/
-
- ctx->vertices[1][1][0] = 1.0f;
- ctx->vertices[1][1][1] = 0.0f;
- ctx->vertices[1][1][2] = r;
-
- ctx->vertices[2][1][0] = 1.0f;
- ctx->vertices[2][1][1] = 1.0f;
- ctx->vertices[2][1][2] = r;
-
- ctx->vertices[3][1][0] = 0.0f;
- ctx->vertices[3][1][1] = 1.0f;
- ctx->vertices[3][1][2] = r;
- }
-
- offset = get_next_slot( ctx );
-
- pipe_buffer_write_nooverlap(ctx->pipe, ctx->vbuf,
- offset, sizeof(ctx->vertices), ctx->vertices);
-
- return offset;
-}
-
-
-
-/**
- * Destroy a mipmap generation context
- */
-void
-util_destroy_gen_mipmap(struct gen_mipmap_state *ctx)
-{
- struct pipe_context *pipe = ctx->pipe;
- unsigned i;
-
- for (i = 0; i < Elements(ctx->fs_color); i++)
- if (ctx->fs_color[i])
- pipe->delete_fs_state(pipe, ctx->fs_color[i]);
-
- for (i = 0; i < Elements(ctx->fs_depth); i++)
- if (ctx->fs_depth[i])
- pipe->delete_fs_state(pipe, ctx->fs_depth[i]);
-
- if (ctx->vs)
- pipe->delete_vs_state(pipe, ctx->vs);
-
- pipe_resource_reference(&ctx->vbuf, NULL);
-
- FREE(ctx);
-}
+#include "util/u_format.h"
+#include "util/u_inlines.h"
/**
* Generate mipmap images. It's assumed all needed texture memory is
* already allocated.
*
- * \param psv the sampler view to the texture to generate mipmap levels for
- * \param face which cube face to generate mipmaps for (0 for non-cube maps)
- * \param baseLevel the first mipmap level to use as a src
- * \param lastLevel the last mipmap level to generate
+ * \param pt the texture to generate mipmap levels for
+ * \param format format of texture
+ * \param first_layer the first layer to generate mipmap levels for
+ * (ignored for 3D textures)
+ * \param last_layer the last layer to generate mipmap levels for
+ * (ignored for 3D textures)
+ * \param base_level the first mipmap level to use as a src
+ * \param last_level the last mipmap level to generate
* \param filter the minification filter used to generate mipmap levels with
- * \param filter one of PIPE_TEX_FILTER_LINEAR, PIPE_TEX_FILTER_NEAREST
+ * one of PIPE_TEX_FILTER_LINEAR, PIPE_TEX_FILTER_NEAREST
*/
-void
-util_gen_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_sampler_view *psv,
- uint face, uint baseLevel, uint lastLevel, uint filter)
+boolean
+util_gen_mipmap(struct pipe_context *pipe, struct pipe_resource *pt,
+ enum pipe_format format, uint base_level, uint last_level,
+ uint first_layer, uint last_layer, uint filter)
{
- struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
- struct pipe_framebuffer_state fb;
- struct pipe_resource *pt = psv->texture;
+ struct pipe_blit_info blit;
uint dstLevel;
- uint offset;
- uint type;
- boolean is_depth = util_format_is_depth_or_stencil(psv->format);
+ boolean is_zs = util_format_is_depth_or_stencil(format);
+ boolean has_depth =
+ util_format_has_depth(util_format_description(format));
+
+ /* nothing to do for stencil-only formats */
+ if (is_zs && !has_depth)
+ return TRUE;
+
+ /* nothing to do for integer formats */
+ if (!is_zs && util_format_is_pure_integer(format))
+ return TRUE;
+
+ if (!screen->is_format_supported(screen, format, pt->target,
+ pt->nr_samples,
+ PIPE_BIND_SAMPLER_VIEW |
+ (is_zs ? PIPE_BIND_DEPTH_STENCIL :
+ PIPE_BIND_RENDER_TARGET))) {
+ return FALSE;
+ }
/* The texture object should have room for the levels which we're
* about to generate.
*/
- assert(lastLevel <= pt->last_level);
+ assert(last_level <= pt->last_level);
/* If this fails, why are we here? */
- assert(lastLevel > baseLevel);
-
+ assert(last_level > base_level);
assert(filter == PIPE_TEX_FILTER_LINEAR ||
filter == PIPE_TEX_FILTER_NEAREST);
- type = util_pipe_tex_to_tgsi_tex(pt->target, 1);
-
- /* check if we can render in the texture's format */
- if (!screen->is_format_supported(screen, psv->format, pt->target,
- pt->nr_samples,
- is_depth ? PIPE_BIND_DEPTH_STENCIL :
- PIPE_BIND_RENDER_TARGET)) {
- /* The caller should check if the format is renderable. */
- assert(0);
- return;
- }
-
- /* save state (restored below) */
- cso_save_blend(ctx->cso);
- cso_save_depth_stencil_alpha(ctx->cso);
- cso_save_rasterizer(ctx->cso);
- cso_save_sample_mask(ctx->cso);
- cso_save_samplers(ctx->cso, PIPE_SHADER_FRAGMENT);
- cso_save_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT);
- cso_save_stream_outputs(ctx->cso);
- cso_save_framebuffer(ctx->cso);
- cso_save_fragment_shader(ctx->cso);
- cso_save_vertex_shader(ctx->cso);
- cso_save_geometry_shader(ctx->cso);
- cso_save_viewport(ctx->cso);
- cso_save_vertex_elements(ctx->cso);
- cso_save_aux_vertex_buffer_slot(ctx->cso);
- cso_save_render_condition(ctx->cso);
+ memset(&blit, 0, sizeof(blit));
+ blit.src.resource = blit.dst.resource = pt;
+ blit.src.format = blit.dst.format = format;
+ /* don't set the stencil mask, stencil shouldn't be changed */
+ blit.mask = is_zs ? PIPE_MASK_Z : PIPE_MASK_RGBA;
+ blit.filter = filter;
- /* bind our state */
- cso_set_blend(ctx->cso, is_depth ? &ctx->blend_keep_color :
- &ctx->blend_write_color);
- cso_set_depth_stencil_alpha(ctx->cso, is_depth ? &ctx->dsa_write_depth :
- &ctx->dsa_keep_depth);
- cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
- cso_set_sample_mask(ctx->cso, ~0);
- cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
- cso_set_stream_outputs(ctx->cso, 0, NULL, NULL);
- cso_set_render_condition(ctx->cso, NULL, FALSE, 0);
+ for (dstLevel = base_level + 1; dstLevel <= last_level; dstLevel++) {
+ blit.src.level = dstLevel - 1;
+ blit.dst.level = dstLevel;
- set_fragment_shader(ctx, type, is_depth);
- set_vertex_shader(ctx);
- cso_set_geometry_shader_handle(ctx->cso, NULL);
+ blit.src.box.width = u_minify(pt->width0, blit.src.level);
+ blit.src.box.height = u_minify(pt->height0, blit.src.level);
- /* init framebuffer state */
- memset(&fb, 0, sizeof(fb));
+ blit.dst.box.width = u_minify(pt->width0, blit.dst.level);
+ blit.dst.box.height = u_minify(pt->height0, blit.dst.level);
- /* set min/mag to same filter for faster sw speed */
- ctx->sampler.mag_img_filter = filter;
- ctx->sampler.min_img_filter = filter;
-
- for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
- const uint srcLevel = dstLevel - 1;
- struct pipe_viewport_state vp;
- unsigned nr_layers, layer, i;
- float rcoord = 0.0f;
-
- if (pt->target == PIPE_TEXTURE_3D)
- nr_layers = u_minify(pt->depth0, dstLevel);
- else if (pt->target == PIPE_TEXTURE_2D_ARRAY ||
- pt->target == PIPE_TEXTURE_1D_ARRAY ||
- pt->target == PIPE_TEXTURE_CUBE_ARRAY)
- nr_layers = pt->array_size;
- else
- nr_layers = 1;
-
- for (i = 0; i < nr_layers; i++) {
- struct pipe_surface *surf, surf_templ;
- if (pt->target == PIPE_TEXTURE_3D) {
- /* in theory with geom shaders and driver with full layer support
- could do that in one go. */
- layer = i;
- /* XXX hmm really? */
- rcoord = (float)layer / (float)nr_layers + 1.0f / (float)(nr_layers * 2);
- } else if (pt->target == PIPE_TEXTURE_2D_ARRAY ||
- pt->target == PIPE_TEXTURE_1D_ARRAY) {
- layer = i;
- rcoord = (float)layer;
- } else if (pt->target == PIPE_TEXTURE_CUBE_ARRAY) {
- layer = i;
- face = layer % 6;
- rcoord = layer / 6;
- } else
- layer = face;
-
- u_surface_default_template(&surf_templ, pt);
- surf_templ.u.tex.level = dstLevel;
- surf_templ.u.tex.first_layer = layer;
- surf_templ.u.tex.last_layer = layer;
- surf = pipe->create_surface(pipe, pt, &surf_templ);
-
- /*
- * Setup framebuffer / dest surface
- */
- if (is_depth) {
- fb.nr_cbufs = 0;
- fb.zsbuf = surf;
- }
- else {
- fb.nr_cbufs = 1;
- fb.cbufs[0] = surf;
- }
- fb.width = u_minify(pt->width0, dstLevel);
- fb.height = u_minify(pt->height0, dstLevel);
- cso_set_framebuffer(ctx->cso, &fb);
-
- /* viewport */
- vp.scale[0] = 0.5f * fb.width;
- vp.scale[1] = 0.5f * fb.height;
- vp.scale[2] = 1.0f;
- vp.scale[3] = 1.0f;
- vp.translate[0] = 0.5f * fb.width;
- vp.translate[1] = 0.5f * fb.height;
- vp.translate[2] = 0.0f;
- vp.translate[3] = 0.0f;
- cso_set_viewport(ctx->cso, &vp);
-
- /*
- * Setup sampler state
- * Note: we should only have to set the min/max LOD clamps to ensure
- * we grab texels from the right mipmap level. But some hardware
- * has trouble with min clamping so we also set the lod_bias to
- * try to work around that.
- */
- ctx->sampler.min_lod = ctx->sampler.max_lod = (float) srcLevel;
- ctx->sampler.lod_bias = (float) srcLevel;
- cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler);
- cso_single_sampler_done(ctx->cso, PIPE_SHADER_FRAGMENT);
-
- cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &psv);
-
- /* quad coords in clip coords */
- offset = set_vertex_data(ctx,
- pt->target,
- face,
- rcoord);
-
- util_draw_vertex_buffer(ctx->pipe,
- ctx->cso,
- ctx->vbuf,
- cso_get_aux_vertex_buffer_slot(ctx->cso),
- offset,
- PIPE_PRIM_TRIANGLE_FAN,
- 4, /* verts */
- 2); /* attribs/vert */
-
- /* need to signal that the texture has changed _after_ rendering to it */
- pipe_surface_reference( &surf, NULL );
+ if (pt->target == PIPE_TEXTURE_3D) {
+ /* generate all layers/slices at once */
+ blit.src.box.z = blit.dst.box.z = 0;
+ blit.src.box.depth = util_max_layer(pt, blit.src.level)+1;
+ blit.dst.box.depth = util_max_layer(pt, blit.dst.level)+1;
+ }
+ else {
+ blit.src.box.z = blit.dst.box.z = first_layer;
+ blit.src.box.depth = blit.dst.box.depth =
+ (last_layer + 1 - first_layer);
}
- }
- /* restore state we changed */
- cso_restore_blend(ctx->cso);
- cso_restore_depth_stencil_alpha(ctx->cso);
- cso_restore_rasterizer(ctx->cso);
- cso_restore_sample_mask(ctx->cso);
- cso_restore_samplers(ctx->cso, PIPE_SHADER_FRAGMENT);
- cso_restore_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT);
- cso_restore_framebuffer(ctx->cso);
- cso_restore_fragment_shader(ctx->cso);
- cso_restore_vertex_shader(ctx->cso);
- cso_restore_geometry_shader(ctx->cso);
- cso_restore_viewport(ctx->cso);
- cso_restore_vertex_elements(ctx->cso);
- cso_restore_stream_outputs(ctx->cso);
- cso_restore_aux_vertex_buffer_slot(ctx->cso);
- cso_restore_render_condition(ctx->cso);
+ pipe->blit(pipe, &blit);
+ }
+ return TRUE;
}
diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.h b/src/gallium/auxiliary/util/u_gen_mipmap.h
index ffeff425ec7..99d01788848 100644
--- a/src/gallium/auxiliary/util/u_gen_mipmap.h
+++ b/src/gallium/auxiliary/util/u_gen_mipmap.h
@@ -35,26 +35,13 @@
extern "C" {
#endif
-
-struct pipe_context;
-struct pipe_resource;
-struct cso_context;
-
-struct gen_mipmap_state;
-
-
-extern struct gen_mipmap_state *
-util_create_gen_mipmap(struct pipe_context *pipe, struct cso_context *cso);
-
-
-extern void
-util_destroy_gen_mipmap(struct gen_mipmap_state *ctx);
+struct pipe_context;
-extern void
-util_gen_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_sampler_view *psv,
- uint layer, uint baseLevel, uint lastLevel, uint filter);
+extern boolean
+util_gen_mipmap(struct pipe_context *pipe, struct pipe_resource *pt,
+ enum pipe_format format, uint base_level, uint last_level,
+ uint first_layer, uint last_layer, uint filter);
#ifdef __cplusplus
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 07:20:36 +0000