src/gallium/drivers/panfrost/pan_blit.c

   1 /*
   2  * Copyright (C) 2014 Broadcom
   3  * Copyright (C) 2019 Collabora, Ltd.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  * Authors (Collabora):
  25  *   Tomeu Vizoso <tomeu.vizoso@collabora.com>
  26  *   Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
  27  *
  28  */
  29
  30 #include "pan_context.h"
  31 #include "pan_util.h"
  32 #include "util/format/u_format.h"
  33
  34 static void
  35 panfrost_blitter_save(
  36         struct panfrost_context *ctx,
  37         struct blitter_context *blitter)
  38 {
  39
  40         util_blitter_save_vertex_buffer_slot(blitter, ctx->vertex_buffers);
  41         util_blitter_save_vertex_elements(blitter, ctx->vertex);
  42         util_blitter_save_vertex_shader(blitter, ctx->shader[PIPE_SHADER_VERTEX]);
  43         util_blitter_save_rasterizer(blitter, ctx->rasterizer);
  44         util_blitter_save_viewport(blitter, &ctx->pipe_viewport);
  45         util_blitter_save_scissor(blitter, &ctx->scissor);
  46         util_blitter_save_fragment_shader(blitter, ctx->shader[PIPE_SHADER_FRAGMENT]);
  47         util_blitter_save_blend(blitter, ctx->blend);
  48         util_blitter_save_depth_stencil_alpha(blitter, ctx->depth_stencil);
  49         util_blitter_save_stencil_ref(blitter, &ctx->stencil_ref);
  50         util_blitter_save_so_targets(blitter, 0, NULL);
  51         util_blitter_save_sample_mask(blitter, ctx->sample_mask);
  52
  53         util_blitter_save_framebuffer(blitter, &ctx->pipe_framebuffer);
  54         util_blitter_save_fragment_sampler_states(blitter,
  55                         ctx->sampler_count[PIPE_SHADER_FRAGMENT],
  56                         (void **)(&ctx->samplers[PIPE_SHADER_FRAGMENT]));
  57         util_blitter_save_fragment_sampler_views(blitter,
  58                         ctx->sampler_view_count[PIPE_SHADER_FRAGMENT],
  59                         (struct pipe_sampler_view **)&ctx->sampler_views[PIPE_SHADER_FRAGMENT]);
  60         util_blitter_save_fragment_constant_buffer_slot(blitter,
  61                         ctx->constant_buffer[PIPE_SHADER_FRAGMENT].cb);
  62 }
  63
  64 static bool
  65 panfrost_u_blitter_blit(struct pipe_context *pipe,
  66                         const struct pipe_blit_info *info)
  67 {
  68         struct panfrost_context *ctx = pan_context(pipe);
  69         struct panfrost_device *dev = pan_device(pipe->screen);
  70
  71         if (!util_blitter_is_blit_supported(ctx->blitter, info)) {
  72                 if (dev->debug & PAN_DBG_MSGS) {
  73                         fprintf(stderr, "blit unsupported %s -> %s\n",
  74                                         util_format_short_name(info->src.resource->format),
  75                                         util_format_short_name(info->dst.resource->format));
  76                 }
  77
  78                 return false;
  79         }
  80
  81         /* TODO: Scissor */
  82
  83         panfrost_blitter_save(ctx, ctx->blitter);
  84         util_blitter_blit(ctx->blitter, info);
  85
  86         return true;
  87 }
  88
  89 void
  90 panfrost_blit(struct pipe_context *pipe,
  91               const struct pipe_blit_info *info)
  92 {
  93         /* We don't have a hardware blit, so we just fake it with
  94          * u_blitter. We could do a little better by culling
  95          * vertex jobs, though. */
  96
  97         if (panfrost_u_blitter_blit(pipe, info))
  98                 return;
  99
 100         return;
 101 }
 102
 103 /* Blits a framebuffer to "itself". Mali is a tiler, so the
 104  * framebuffer is implicitly cleared every frame, so if there is
 105  * no actual glClear(), we have to blit it back ourselves.
 106  */
 107
 108 void
 109 panfrost_blit_wallpaper(struct panfrost_context *ctx, struct pipe_box *box)
 110 {
 111         struct panfrost_batch *batch = ctx->wallpaper_batch;
 112         struct pipe_blit_info binfo = {0};
 113
 114         panfrost_blitter_save(ctx, ctx->blitter_wallpaper);
 115
 116         struct pipe_surface *surf = batch->key.cbufs[0];
 117         unsigned level = surf->u.tex.level;
 118         unsigned layer = surf->u.tex.first_layer;
 119         assert(surf->u.tex.last_layer == layer);
 120
 121         binfo.src.resource = binfo.dst.resource = batch->key.cbufs[0]->texture;
 122         binfo.src.level = binfo.dst.level = level;
 123         binfo.src.box.x = binfo.dst.box.x = box->x;
 124         binfo.src.box.y = binfo.dst.box.y = box->y;
 125         binfo.src.box.z = binfo.dst.box.z = layer;
 126         binfo.src.box.width = binfo.dst.box.width = box->width;
 127         binfo.src.box.height = binfo.dst.box.height = box->height;
 128         binfo.src.box.depth = binfo.dst.box.depth = 1;
 129
 130         binfo.src.format = binfo.dst.format = batch->key.cbufs[0]->format;
 131
 132         assert(batch->key.nr_cbufs == 1);
 133         binfo.mask = PIPE_MASK_RGBA;
 134         binfo.filter = PIPE_TEX_FILTER_LINEAR;
 135         binfo.scissor_enable = FALSE;
 136
 137         util_blitter_blit(ctx->blitter_wallpaper, &binfo);
 138 }
 139