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_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 }