src/gallium/drivers/etnaviv/etnaviv_clear_blit.c

   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@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_fragment_constant_buffer_slot(ctx->blitter,
  52                                                    ctx->constant_buffer[PIPE_SHADER_FRAGMENT].cb);
  53    util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vertex_buffer.vb);
  54    util_blitter_save_vertex_elements(ctx->blitter, ctx->vertex_elements);
  55    util_blitter_save_vertex_shader(ctx->blitter, ctx->shader.bind_vs);
  56    util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
  57    util_blitter_save_viewport(ctx->blitter, &ctx->viewport_s);
  58    util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
  59    util_blitter_save_fragment_shader(ctx->blitter, ctx->shader.bind_fs);
  60    util_blitter_save_blend(ctx->blitter, ctx->blend);
  61    util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
  62    util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref_s);
  63    util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
  64    util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer_s);
  65    util_blitter_save_fragment_sampler_states(ctx->blitter,
  66          ctx->num_fragment_samplers, (void **)ctx->sampler);
  67    util_blitter_save_fragment_sampler_views(ctx->blitter,
  68          ctx->num_fragment_sampler_views, ctx->sampler_view);
  69 }
  70
  71 uint64_t
  72 etna_clear_blit_pack_rgba(enum pipe_format format, const union pipe_color_union *color)
  73 {
  74    union util_color uc;
  75
  76    util_pack_color_union(format, &uc, color);
  77
  78    switch (util_format_get_blocksize(format)) {
  79    case 1:
  80       uc.ui[0] = uc.ui[0] << 8 | (uc.ui[0] & 0xff);
  81       /* fallthrough */
  82    case 2:
  83       uc.ui[0] =  uc.ui[0] << 16 | (uc.ui[0] & 0xffff);
  84       /* fallthrough */
  85    case 4:
  86       uc.ui[1] = uc.ui[0];
  87       /* fallthrough */
  88    default:
  89       return (uint64_t) uc.ui[1] << 32 | uc.ui[0];
  90    }
  91 }
  92
  93 static void
  94 etna_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
  95 {
  96    struct etna_context *ctx = etna_context(pctx);
  97    struct pipe_blit_info info = *blit_info;
  98
  99    if (ctx->blit(pctx, &info))
 100       return;
 101
 102    if (util_try_blit_via_copy_region(pctx, &info))
 103       return;
 104
 105    if (info.mask & PIPE_MASK_S) {
 106       DBG("cannot blit stencil, skipping");
 107       info.mask &= ~PIPE_MASK_S;
 108    }
 109
 110    if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
 111       DBG("blit unsupported %s -> %s",
 112           util_format_short_name(info.src.resource->format),
 113           util_format_short_name(info.dst.resource->format));
 114       return;
 115    }
 116
 117    etna_blit_save_state(ctx);
 118    util_blitter_blit(ctx->blitter, &info);
 119 }
 120
 121 static void
 122 etna_clear_render_target(struct pipe_context *pctx, struct pipe_surface *dst,
 123                          const union pipe_color_union *color, unsigned dstx,
 124                          unsigned dsty, unsigned width, unsigned height,
 125                          bool render_condition_enabled)
 126 {
 127    struct etna_context *ctx = etna_context(pctx);
 128
 129    /* XXX could fall back to RS when target area is full screen / resolveable
 130     * and no TS. */
 131    etna_blit_save_state(ctx);
 132    util_blitter_clear_render_target(ctx->blitter, dst, color, dstx, dsty, width, height);
 133 }
 134
 135 static void
 136 etna_clear_depth_stencil(struct pipe_context *pctx, struct pipe_surface *dst,
 137                          unsigned clear_flags, double depth, unsigned stencil,
 138                          unsigned dstx, unsigned dsty, unsigned width,
 139                          unsigned height, bool render_condition_enabled)
 140 {
 141    struct etna_context *ctx = etna_context(pctx);
 142
 143    /* XXX could fall back to RS when target area is full screen / resolveable
 144     * and no TS. */
 145    etna_blit_save_state(ctx);
 146    util_blitter_clear_depth_stencil(ctx->blitter, dst, clear_flags, depth,
 147                                     stencil, dstx, dsty, width, height);
 148 }
 149
 150 static void
 151 etna_resource_copy_region(struct pipe_context *pctx, struct pipe_resource *dst,
 152                           unsigned dst_level, unsigned dstx, unsigned dsty,
 153                           unsigned dstz, struct pipe_resource *src,
 154                           unsigned src_level, const struct pipe_box *src_box)
 155 {
 156    struct etna_context *ctx = etna_context(pctx);
 157
 158    /* XXX we can use the RS as a literal copy engine here
 159     * the only complexity is tiling; the size of the boxes needs to be aligned
 160     * to the tile size
 161     * how to handle the case where a resource is copied from/to a non-aligned
 162     * position?
 163     * from non-aligned: can fall back to rendering-based copy?
 164     * to non-aligned: can fall back to rendering-based copy?
 165     * XXX this goes wrong when source surface is supertiled.
 166     */
 167    if (util_blitter_is_copy_supported(ctx->blitter, dst, src)) {
 168       etna_blit_save_state(ctx);
 169       util_blitter_copy_texture(ctx->blitter, dst, dst_level, dstx, dsty, dstz,
 170                                 src, src_level, src_box);
 171    } else {
 172       util_resource_copy_region(pctx, dst, dst_level, dstx, dsty, dstz, src,
 173                                 src_level, src_box);
 174    }
 175 }
 176
 177 static void
 178 etna_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
 179 {
 180    struct etna_resource *rsc = etna_resource(prsc);
 181
 182    if (rsc->render) {
 183       if (etna_resource_older(rsc, etna_resource(rsc->render))) {
 184          etna_copy_resource(pctx, prsc, rsc->render, 0, 0);
 185          rsc->seqno = etna_resource(rsc->render)->seqno;
 186       }
 187    } else if (etna_resource_needs_flush(rsc)) {
 188       etna_copy_resource(pctx, prsc, prsc, 0, 0);
 189       rsc->flush_seqno = rsc->seqno;
 190    }
 191 }
 192
 193 void
 194 etna_copy_resource(struct pipe_context *pctx, struct pipe_resource *dst,
 195                    struct pipe_resource *src, int first_level, int last_level)
 196 {
 197    struct etna_resource *src_priv = etna_resource(src);
 198    struct etna_resource *dst_priv = etna_resource(dst);
 199
 200    assert(src->format == dst->format);
 201    assert(src->array_size == dst->array_size);
 202    assert(last_level <= dst->last_level && last_level <= src->last_level);
 203
 204    struct pipe_blit_info blit = {};
 205    blit.mask = util_format_get_mask(dst->format);
 206    blit.filter = PIPE_TEX_FILTER_NEAREST;
 207    blit.src.resource = src;
 208    blit.src.format = src->format;
 209    blit.dst.resource = dst;
 210    blit.dst.format = dst->format;
 211    blit.dst.box.depth = blit.src.box.depth = 1;
 212
 213    /* Copy each level and each layer */
 214    for (int level = first_level; level <= last_level; level++) {
 215       blit.src.level = blit.dst.level = level;
 216       blit.src.box.width = blit.dst.box.width =
 217          MIN2(src_priv->levels[level].padded_width, dst_priv->levels[level].padded_width);
 218       blit.src.box.height = blit.dst.box.height =
 219          MIN2(src_priv->levels[level].padded_height, dst_priv->levels[level].padded_height);
 220       unsigned depth = MIN2(src_priv->levels[level].depth, dst_priv->levels[level].depth);
 221       if (dst->array_size > 1) {
 222          assert(depth == 1); /* no array of 3d texture */
 223          depth = dst->array_size;
 224       }
 225
 226       for (int z = 0; z < depth; z++) {
 227          blit.src.box.z = blit.dst.box.z = z;
 228          pctx->blit(pctx, &blit);
 229       }
 230    }
 231 }
 232
 233 void
 234 etna_copy_resource_box(struct pipe_context *pctx, struct pipe_resource *dst,
 235                        struct pipe_resource *src, int level,
 236                        struct pipe_box *box)
 237 {
 238    assert(src->format == dst->format);
 239    assert(src->array_size == dst->array_size);
 240
 241    struct pipe_blit_info blit = {};
 242    blit.mask = util_format_get_mask(dst->format);
 243    blit.filter = PIPE_TEX_FILTER_NEAREST;
 244    blit.src.resource = src;
 245    blit.src.format = src->format;
 246    blit.src.box = *box;
 247    blit.dst.resource = dst;
 248    blit.dst.format = dst->format;
 249    blit.dst.box = *box;
 250
 251    blit.dst.box.depth = blit.src.box.depth = 1;
 252    blit.src.level = blit.dst.level = level;
 253
 254    for (int z = 0; z < box->depth; z++) {
 255       blit.src.box.z = blit.dst.box.z = box->z + z;
 256       pctx->blit(pctx, &blit);
 257    }
 258 }
 259
 260 void
 261 etna_clear_blit_init(struct pipe_context *pctx)
 262 {
 263    struct etna_context *ctx = etna_context(pctx);
 264    struct etna_screen *screen = ctx->screen;
 265
 266    pctx->blit = etna_blit;
 267    pctx->clear_render_target = etna_clear_render_target;
 268    pctx->clear_depth_stencil = etna_clear_depth_stencil;
 269    pctx->resource_copy_region = etna_resource_copy_region;
 270    pctx->flush_resource = etna_flush_resource;
 271
 272    if (screen->specs.use_blt)
 273       etna_clear_blit_blt_init(pctx);
 274    else
 275       etna_clear_blit_rs_init(pctx);
 276 }