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      1 /*
      2  * Copyright (c) 2012-2015 Etnaviv Project
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sub license,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the
     12  * next paragraph) shall be included in all copies or substantial portions
     13  * of the Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     21  * DEALINGS IN THE SOFTWARE.
     22  *
     23  * Authors:
     24  *    Wladimir J. van der Laan <laanwj (at) gmail.com>
     25  */
     26 
     27 #include "etnaviv_clear_blit.h"
     28 
     29 #include "hw/common.xml.h"
     30 
     31 #include "etnaviv_blt.h"
     32 #include "etnaviv_context.h"
     33 #include "etnaviv_emit.h"
     34 #include "etnaviv_format.h"
     35 #include "etnaviv_resource.h"
     36 #include "etnaviv_rs.h"
     37 #include "etnaviv_surface.h"
     38 #include "etnaviv_translate.h"
     39 
     40 #include "pipe/p_defines.h"
     41 #include "pipe/p_state.h"
     42 #include "util/u_blitter.h"
     43 #include "util/u_inlines.h"
     44 #include "util/u_memory.h"
     45 #include "util/u_surface.h"
     46 
     47 /* Save current state for blitter operation */
     48 void
     49 etna_blit_save_state(struct etna_context *ctx)
     50 {
     51    util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vertex_buffer.vb);
     52    util_blitter_save_vertex_elements(ctx->blitter, ctx->vertex_elements);
     53    util_blitter_save_vertex_shader(ctx->blitter, ctx->shader.bind_vs);
     54    util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
     55    util_blitter_save_viewport(ctx->blitter, &ctx->viewport_s);
     56    util_blitter_save_scissor(ctx->blitter, &ctx->scissor_s);
     57    util_blitter_save_fragment_shader(ctx->blitter, ctx->shader.bind_fs);
     58    util_blitter_save_blend(ctx->blitter, ctx->blend);
     59    util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
     60    util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref_s);
     61    util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
     62    util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer_s);
     63    util_blitter_save_fragment_sampler_states(ctx->blitter,
     64          ctx->num_fragment_samplers, (void **)ctx->sampler);
     65    util_blitter_save_fragment_sampler_views(ctx->blitter,
     66          ctx->num_fragment_sampler_views, ctx->sampler_view);
     67 }
     68 
     69 uint32_t
     70 etna_clear_blit_pack_rgba(enum pipe_format format, const float *rgba)
     71 {
     72    union util_color uc;
     73    util_pack_color(rgba, format, &uc);
     74    if (util_format_get_blocksize(format) == 2)
     75       return uc.ui[0] << 16 | (uc.ui[0] & 0xffff);
     76    else
     77       return uc.ui[0];
     78 }
     79 
     80 static void
     81 etna_clear_render_target(struct pipe_context *pctx, struct pipe_surface *dst,
     82                          const union pipe_color_union *color, unsigned dstx,
     83                          unsigned dsty, unsigned width, unsigned height,
     84                          bool render_condition_enabled)
     85 {
     86    struct etna_context *ctx = etna_context(pctx);
     87 
     88    /* XXX could fall back to RS when target area is full screen / resolveable
     89     * and no TS. */
     90    etna_blit_save_state(ctx);
     91    util_blitter_clear_render_target(ctx->blitter, dst, color, dstx, dsty, width, height);
     92 }
     93 
     94 static void
     95 etna_clear_depth_stencil(struct pipe_context *pctx, struct pipe_surface *dst,
     96                          unsigned clear_flags, double depth, unsigned stencil,
     97                          unsigned dstx, unsigned dsty, unsigned width,
     98                          unsigned height, bool render_condition_enabled)
     99 {
    100    struct etna_context *ctx = etna_context(pctx);
    101 
    102    /* XXX could fall back to RS when target area is full screen / resolveable
    103     * and no TS. */
    104    etna_blit_save_state(ctx);
    105    util_blitter_clear_depth_stencil(ctx->blitter, dst, clear_flags, depth,
    106                                     stencil, dstx, dsty, width, height);
    107 }
    108 
    109 static void
    110 etna_resource_copy_region(struct pipe_context *pctx, struct pipe_resource *dst,
    111                           unsigned dst_level, unsigned dstx, unsigned dsty,
    112                           unsigned dstz, struct pipe_resource *src,
    113                           unsigned src_level, const struct pipe_box *src_box)
    114 {
    115    struct etna_context *ctx = etna_context(pctx);
    116 
    117    /* The resource must be of the same format. */
    118    assert(src->format == dst->format);
    119 
    120    /* XXX we can use the RS as a literal copy engine here
    121     * the only complexity is tiling; the size of the boxes needs to be aligned
    122     * to the tile size
    123     * how to handle the case where a resource is copied from/to a non-aligned
    124     * position?
    125     * from non-aligned: can fall back to rendering-based copy?
    126     * to non-aligned: can fall back to rendering-based copy?
    127     * XXX this goes wrong when source surface is supertiled.
    128     */
    129    if (util_blitter_is_copy_supported(ctx->blitter, dst, src)) {
    130       etna_blit_save_state(ctx);
    131       util_blitter_copy_texture(ctx->blitter, dst, dst_level, dstx, dsty, dstz,
    132                                 src, src_level, src_box);
    133    } else {
    134       util_resource_copy_region(pctx, dst, dst_level, dstx, dsty, dstz, src,
    135                                 src_level, src_box);
    136    }
    137 }
    138 
    139 static void
    140 etna_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
    141 {
    142    struct etna_resource *rsc = etna_resource(prsc);
    143 
    144    if (rsc->external) {
    145       if (etna_resource_older(etna_resource(rsc->external), rsc)) {
    146          etna_copy_resource(pctx, rsc->external, prsc, 0, 0);
    147          etna_resource(rsc->external)->seqno = rsc->seqno;
    148       }
    149    } else if (etna_resource_needs_flush(rsc)) {
    150       etna_copy_resource(pctx, prsc, prsc, 0, 0);
    151       rsc->flush_seqno = rsc->seqno;
    152    }
    153 }
    154 
    155 void
    156 etna_copy_resource(struct pipe_context *pctx, struct pipe_resource *dst,
    157                    struct pipe_resource *src, int first_level, int last_level)
    158 {
    159    struct etna_resource *src_priv = etna_resource(src);
    160    struct etna_resource *dst_priv = etna_resource(dst);
    161 
    162    assert(src->format == dst->format);
    163    assert(src->array_size == dst->array_size);
    164    assert(last_level <= dst->last_level && last_level <= src->last_level);
    165 
    166    struct pipe_blit_info blit = {};
    167    blit.mask = util_format_get_mask(dst->format);
    168    blit.filter = PIPE_TEX_FILTER_NEAREST;
    169    blit.src.resource = src;
    170    blit.src.format = src->format;
    171    blit.dst.resource = dst;
    172    blit.dst.format = dst->format;
    173    blit.dst.box.depth = blit.src.box.depth = 1;
    174 
    175    /* Copy each level and each layer */
    176    for (int level = first_level; level <= last_level; level++) {
    177       blit.src.level = blit.dst.level = level;
    178       blit.src.box.width = blit.dst.box.width =
    179          MIN2(src_priv->levels[level].padded_width, dst_priv->levels[level].padded_width);
    180       blit.src.box.height = blit.dst.box.height =
    181          MIN2(src_priv->levels[level].padded_height, dst_priv->levels[level].padded_height);
    182 
    183       for (int layer = 0; layer < dst->array_size; layer++) {
    184          blit.src.box.z = blit.dst.box.z = layer;
    185          pctx->blit(pctx, &blit);
    186       }
    187    }
    188 }
    189 
    190 void
    191 etna_copy_resource_box(struct pipe_context *pctx, struct pipe_resource *dst,
    192                        struct pipe_resource *src, int level,
    193                        struct pipe_box *box)
    194 {
    195    assert(src->format == dst->format);
    196    assert(src->array_size == dst->array_size);
    197 
    198    struct pipe_blit_info blit = {};
    199    blit.mask = util_format_get_mask(dst->format);
    200    blit.filter = PIPE_TEX_FILTER_NEAREST;
    201    blit.src.resource = src;
    202    blit.src.format = src->format;
    203    blit.src.box = *box;
    204    blit.dst.resource = dst;
    205    blit.dst.format = dst->format;
    206    blit.dst.box = *box;
    207 
    208    blit.dst.box.depth = blit.src.box.depth = 1;
    209    blit.src.level = blit.dst.level = level;
    210 
    211    for (int layer = 0; layer < dst->array_size; layer++) {
    212       blit.src.box.z = blit.dst.box.z = layer;
    213       pctx->blit(pctx, &blit);
    214    }
    215 }
    216 
    217 void
    218 etna_clear_blit_init(struct pipe_context *pctx)
    219 {
    220    struct etna_context *ctx = etna_context(pctx);
    221 
    222    pctx->clear_render_target = etna_clear_render_target;
    223    pctx->clear_depth_stencil = etna_clear_depth_stencil;
    224    pctx->resource_copy_region = etna_resource_copy_region;
    225    pctx->flush_resource = etna_flush_resource;
    226 
    227    if (ctx->specs.use_blt)
    228       etna_clear_blit_blt_init(pctx);
    229    else
    230       etna_clear_blit_rs_init(pctx);
    231 }
    232