src/gallium/drivers/vc4/vc4_blit.c

   1 /*
   2  * Copyright © 2015 Broadcom
   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, sublicense,
   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 next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * 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 NONINFRINGEMENT.  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 DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "util/u_format.h"
  25 #include "util/u_surface.h"
  26 #include "util/u_blitter.h"
  27 #include "vc4_context.h"
  28
  29 static void
  30 vc4_tile_blit_color_rcl(struct vc4_context *vc4,
  31                         struct vc4_surface *dst_surf,
  32                         struct vc4_surface *src_surf)
  33 {
  34         struct vc4_resource *src = vc4_resource(src_surf->base.texture);
  35         struct vc4_resource *dst = vc4_resource(dst_surf->base.texture);
  36
  37         uint32_t min_x_tile = 0;
  38         uint32_t min_y_tile = 0;
  39         uint32_t max_x_tile = (dst_surf->base.width - 1) / 64;
  40         uint32_t max_y_tile = (dst_surf->base.height - 1) / 64;
  41         uint32_t xtiles = max_x_tile - min_x_tile + 1;
  42         uint32_t ytiles = max_y_tile - min_y_tile + 1;
  43         uint32_t reloc_size = 9;
  44         uint32_t config_size = 11 + reloc_size;
  45         uint32_t loadstore_size = 7 + reloc_size;
  46         uint32_t tilecoords_size = 3;
  47         cl_ensure_space(&vc4->rcl,
  48                         config_size +
  49                         xtiles * ytiles * (loadstore_size * 2 +
  50                                            tilecoords_size * 1));
  51         cl_ensure_space(&vc4->bo_handles, 2 * sizeof(uint32_t));
  52         cl_ensure_space(&vc4->bo_pointers, 2 * sizeof(struct vc4_bo *));
  53
  54         cl_start_reloc(&vc4->rcl, 1);
  55         cl_u8(&vc4->rcl, VC4_PACKET_TILE_RENDERING_MODE_CONFIG);
  56         cl_reloc(vc4, &vc4->rcl, dst->bo, dst_surf->offset);
  57         cl_u16(&vc4->rcl, dst_surf->base.width);
  58         cl_u16(&vc4->rcl, dst_surf->base.height);
  59         cl_u16(&vc4->rcl, ((dst_surf->tiling <<
  60                             VC4_RENDER_CONFIG_MEMORY_FORMAT_SHIFT) |
  61                            (vc4_rt_format_is_565(dst_surf->base.format) ?
  62                             VC4_RENDER_CONFIG_FORMAT_BGR565 :
  63                             VC4_RENDER_CONFIG_FORMAT_RGBA8888)));
  64
  65         uint32_t src_hindex = vc4_gem_hindex(vc4, src->bo);
  66
  67         for (int y = min_y_tile; y <= max_y_tile; y++) {
  68                 for (int x = min_x_tile; x <= max_x_tile; x++) {
  69                         bool end_of_frame = (x == max_x_tile &&
  70                                              y == max_y_tile);
  71
  72                         cl_start_reloc(&vc4->rcl, 1);
  73                         cl_u8(&vc4->rcl, VC4_PACKET_LOAD_TILE_BUFFER_GENERAL);
  74                         cl_u8(&vc4->rcl,
  75                               VC4_LOADSTORE_TILE_BUFFER_COLOR |
  76                               (src_surf->tiling <<
  77                                VC4_LOADSTORE_TILE_BUFFER_FORMAT_SHIFT));
  78                         cl_u8(&vc4->rcl,
  79                               vc4_rt_format_is_565(src_surf->base.format) ?
  80                               VC4_LOADSTORE_TILE_BUFFER_BGR565 :
  81                               VC4_LOADSTORE_TILE_BUFFER_RGBA8888);
  82                         cl_reloc_hindex(&vc4->rcl, src_hindex,
  83                                         src_surf->offset);
  84
  85                         cl_u8(&vc4->rcl, VC4_PACKET_TILE_COORDINATES);
  86                         cl_u8(&vc4->rcl, x);
  87                         cl_u8(&vc4->rcl, y);
  88
  89                         if (end_of_frame) {
  90                                 cl_u8(&vc4->rcl,
  91                                       VC4_PACKET_STORE_MS_TILE_BUFFER_AND_EOF);
  92                         } else {
  93                                 cl_u8(&vc4->rcl,
  94                                       VC4_PACKET_STORE_MS_TILE_BUFFER);
  95                         }
  96                 }
  97         }
  98
  99         vc4->draw_min_x = 0;
 100         vc4->draw_min_y = 0;
 101         vc4->draw_max_x = dst_surf->base.width;
 102         vc4->draw_max_y = dst_surf->base.height;
 103
 104         dst->writes++;
 105         vc4->needs_flush = true;
 106 }
 107
 108 static struct vc4_surface *
 109 vc4_get_blit_surface(struct pipe_context *pctx,
 110                      struct pipe_resource *prsc, unsigned level)
 111 {
 112         struct pipe_surface tmpl;
 113
 114         memset(&tmpl, 0, sizeof(tmpl));
 115         tmpl.format = prsc->format;
 116         tmpl.u.tex.level = level;
 117         tmpl.u.tex.first_layer = 0;
 118         tmpl.u.tex.last_layer = 0;
 119
 120         return vc4_surface(pctx->create_surface(pctx, prsc, &tmpl));
 121 }
 122
 123 static bool
 124 vc4_tile_blit(struct pipe_context *pctx, const struct pipe_blit_info *info)
 125 {
 126         struct vc4_context *vc4 = vc4_context(pctx);
 127
 128         if ((info->mask & PIPE_MASK_RGBA) == 0)
 129                 return false;
 130
 131         if (info->dst.box.x != 0 || info->dst.box.y != 0 ||
 132             info->src.box.x != 0 || info->src.box.y != 0 ||
 133             info->dst.box.width != info->src.box.width ||
 134             info->dst.box.height != info->src.box.height) {
 135                 return false;
 136         }
 137
 138         struct vc4_surface *dst_surf =
 139                 vc4_get_blit_surface(pctx, info->dst.resource, info->dst.level);
 140         struct vc4_surface *src_surf =
 141                 vc4_get_blit_surface(pctx, info->src.resource, info->src.level);
 142
 143         vc4_flush(pctx);
 144         vc4_tile_blit_color_rcl(vc4, dst_surf, src_surf);
 145         vc4_job_submit(vc4);
 146
 147         pctx->surface_destroy(pctx, &dst_surf->base);
 148         pctx->surface_destroy(pctx, &src_surf->base);
 149
 150         return true;
 151 }
 152
 153 static bool
 154 vc4_render_blit(struct pipe_context *ctx, struct pipe_blit_info *info)
 155 {
 156         struct vc4_context *vc4 = vc4_context(ctx);
 157
 158         if (!util_blitter_is_blit_supported(vc4->blitter, info)) {
 159                 fprintf(stderr, "blit unsupported %s -> %s",
 160                     util_format_short_name(info->src.resource->format),
 161                     util_format_short_name(info->dst.resource->format));
 162                 return false;
 163         }
 164
 165         util_blitter_save_vertex_buffer_slot(vc4->blitter, vc4->vertexbuf.vb);
 166         util_blitter_save_vertex_elements(vc4->blitter, vc4->vtx);
 167         util_blitter_save_vertex_shader(vc4->blitter, vc4->prog.bind_vs);
 168         util_blitter_save_rasterizer(vc4->blitter, vc4->rasterizer);
 169         util_blitter_save_viewport(vc4->blitter, &vc4->viewport);
 170         util_blitter_save_scissor(vc4->blitter, &vc4->scissor);
 171         util_blitter_save_fragment_shader(vc4->blitter, vc4->prog.bind_fs);
 172         util_blitter_save_blend(vc4->blitter, vc4->blend);
 173         util_blitter_save_depth_stencil_alpha(vc4->blitter, vc4->zsa);
 174         util_blitter_save_stencil_ref(vc4->blitter, &vc4->stencil_ref);
 175         util_blitter_save_sample_mask(vc4->blitter, vc4->sample_mask);
 176         util_blitter_save_framebuffer(vc4->blitter, &vc4->framebuffer);
 177         util_blitter_save_fragment_sampler_states(vc4->blitter,
 178                         vc4->fragtex.num_samplers,
 179                         (void **)vc4->fragtex.samplers);
 180         util_blitter_save_fragment_sampler_views(vc4->blitter,
 181                         vc4->fragtex.num_textures, vc4->fragtex.textures);
 182
 183         util_blitter_blit(vc4->blitter, info);
 184
 185         return true;
 186 }
 187
 188 /* Optimal hardware path for blitting pixels.
 189  * Scaling, format conversion, up- and downsampling (resolve) are allowed.
 190  */
 191 void
 192 vc4_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 193 {
 194         struct pipe_blit_info info = *blit_info;
 195
 196         if (info.src.resource->nr_samples > 1 &&
 197             info.dst.resource->nr_samples <= 1 &&
 198             !util_format_is_depth_or_stencil(info.src.resource->format) &&
 199             !util_format_is_pure_integer(info.src.resource->format)) {
 200                 fprintf(stderr, "color resolve unimplemented");
 201                 return;
 202         }
 203
 204         if (vc4_tile_blit(pctx, blit_info))
 205                 return;
 206
 207         if (util_try_blit_via_copy_region(pctx, &info)) {
 208                 return; /* done */
 209         }
 210
 211         if (info.mask & PIPE_MASK_S) {
 212                 fprintf(stderr, "cannot blit stencil, skipping");
 213                 info.mask &= ~PIPE_MASK_S;
 214         }
 215
 216         vc4_render_blit(pctx, &info);
 217 }