src/gallium/drivers/freedreno/freedreno_blitter.c

   1 /*
   2  * Copyright (C) 2017 Rob Clark <robclark@freedesktop.org>
   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 FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Rob Clark <robclark@freedesktop.org>
  25  */
  26
  27 #include "util/u_blitter.h"
  28
  29 #include "freedreno_blitter.h"
  30 #include "freedreno_context.h"
  31
  32 /* generic blit using u_blitter.. slightly modified version of util_blitter_blit
  33  * which also handles PIPE_BUFFER:
  34  */
  35
  36 static void
  37 default_dst_texture(struct pipe_surface *dst_templ, struct pipe_resource *dst,
  38                 unsigned dstlevel, unsigned dstz)
  39 {
  40         memset(dst_templ, 0, sizeof(*dst_templ));
  41         if (dst->target == PIPE_BUFFER)
  42                 dst_templ->format = PIPE_FORMAT_R8_UINT;
  43         else
  44                 dst_templ->format = util_format_linear(dst->format);
  45         dst_templ->u.tex.level = dstlevel;
  46         dst_templ->u.tex.first_layer = dstz;
  47         dst_templ->u.tex.last_layer = dstz;
  48 }
  49
  50 static void
  51 default_src_texture(struct pipe_sampler_view *src_templ,
  52                 struct pipe_resource *src, unsigned srclevel)
  53 {
  54         bool cube_as_2darray = src->screen->get_param(src->screen,
  55                         PIPE_CAP_SAMPLER_VIEW_TARGET);
  56
  57         memset(src_templ, 0, sizeof(*src_templ));
  58
  59         if (cube_as_2darray && (src->target == PIPE_TEXTURE_CUBE ||
  60                         src->target == PIPE_TEXTURE_CUBE_ARRAY))
  61                 src_templ->target = PIPE_TEXTURE_2D_ARRAY;
  62         else
  63                 src_templ->target = src->target;
  64
  65         if (src->target  == PIPE_BUFFER) {
  66                 src_templ->target = PIPE_TEXTURE_1D;
  67                 src_templ->format = PIPE_FORMAT_R8_UINT;
  68         } else {
  69                 src_templ->format = util_format_linear(src->format);
  70         }
  71         src_templ->u.tex.first_level = srclevel;
  72         src_templ->u.tex.last_level = srclevel;
  73         src_templ->u.tex.first_layer = 0;
  74         src_templ->u.tex.last_layer =
  75                         src->target == PIPE_TEXTURE_3D ? u_minify(src->depth0, srclevel) - 1
  76                                         : (unsigned)(src->array_size - 1);
  77         src_templ->swizzle_r = PIPE_SWIZZLE_X;
  78         src_templ->swizzle_g = PIPE_SWIZZLE_Y;
  79         src_templ->swizzle_b = PIPE_SWIZZLE_Z;
  80         src_templ->swizzle_a = PIPE_SWIZZLE_W;
  81 }
  82
  83 void
  84 fd_blitter_blit(struct fd_context *ctx, const struct pipe_blit_info *info)
  85 {
  86         struct pipe_resource *dst = info->dst.resource;
  87         struct pipe_resource *src = info->src.resource;
  88         struct pipe_context *pipe = &ctx->base;
  89         struct pipe_surface *dst_view, dst_templ;
  90         struct pipe_sampler_view src_templ, *src_view;
  91
  92         /* Initialize the surface. */
  93         default_dst_texture(&dst_templ, dst, info->dst.level,
  94                         info->dst.box.z);
  95         dst_templ.format = info->dst.format;
  96         dst_view = pipe->create_surface(pipe, dst, &dst_templ);
  97
  98         /* Initialize the sampler view. */
  99         default_src_texture(&src_templ, src, info->src.level);
 100         src_templ.format = info->src.format;
 101         src_view = pipe->create_sampler_view(pipe, src, &src_templ);
 102
 103         /* Copy. */
 104         util_blitter_blit_generic(ctx->blitter, dst_view, &info->dst.box,
 105                         src_view, &info->src.box, src->width0, src->height0,
 106                         info->mask, info->filter,
 107                         info->scissor_enable ? &info->scissor : NULL,
 108                         info->alpha_blend);
 109
 110         pipe_surface_reference(&dst_view, NULL);
 111         pipe_sampler_view_reference(&src_view, NULL);
 112 }