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/*
* Copyright (C) 2017 Rob Clark <robclark@freedesktop.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#include "util/u_blitter.h"
#include "util/u_surface.h"
#include "freedreno_blitter.h"
#include "freedreno_context.h"
#include "freedreno_resource.h"
/* generic blit using u_blitter.. slightly modified version of util_blitter_blit
* which also handles PIPE_BUFFER:
*/
static void
default_dst_texture(struct pipe_surface *dst_templ, struct pipe_resource *dst,
unsigned dstlevel, unsigned dstz)
{
memset(dst_templ, 0, sizeof(*dst_templ));
if (dst->target == PIPE_BUFFER)
dst_templ->format = PIPE_FORMAT_R8_UINT;
else
dst_templ->format = util_format_linear(dst->format);
dst_templ->u.tex.level = dstlevel;
dst_templ->u.tex.first_layer = dstz;
dst_templ->u.tex.last_layer = dstz;
}
static void
default_src_texture(struct pipe_sampler_view *src_templ,
struct pipe_resource *src, unsigned srclevel)
{
bool cube_as_2darray = src->screen->get_param(src->screen,
PIPE_CAP_SAMPLER_VIEW_TARGET);
memset(src_templ, 0, sizeof(*src_templ));
if (cube_as_2darray && (src->target == PIPE_TEXTURE_CUBE ||
src->target == PIPE_TEXTURE_CUBE_ARRAY))
src_templ->target = PIPE_TEXTURE_2D_ARRAY;
else
src_templ->target = src->target;
if (src->target == PIPE_BUFFER) {
src_templ->target = PIPE_TEXTURE_1D;
src_templ->format = PIPE_FORMAT_R8_UINT;
} else {
src_templ->format = util_format_linear(src->format);
}
src_templ->u.tex.first_level = srclevel;
src_templ->u.tex.last_level = srclevel;
src_templ->u.tex.first_layer = 0;
src_templ->u.tex.last_layer =
src->target == PIPE_TEXTURE_3D ? u_minify(src->depth0, srclevel) - 1
: (unsigned)(src->array_size - 1);
src_templ->swizzle_r = PIPE_SWIZZLE_X;
src_templ->swizzle_g = PIPE_SWIZZLE_Y;
src_templ->swizzle_b = PIPE_SWIZZLE_Z;
src_templ->swizzle_a = PIPE_SWIZZLE_W;
}
void
fd_blitter_blit(struct fd_context *ctx, const struct pipe_blit_info *info)
{
struct pipe_resource *dst = info->dst.resource;
struct pipe_resource *src = info->src.resource;
struct pipe_context *pipe = &ctx->base;
struct pipe_surface *dst_view, dst_templ;
struct pipe_sampler_view src_templ, *src_view;
/* Initialize the surface. */
default_dst_texture(&dst_templ, dst, info->dst.level,
info->dst.box.z);
dst_templ.format = info->dst.format;
dst_view = pipe->create_surface(pipe, dst, &dst_templ);
/* Initialize the sampler view. */
default_src_texture(&src_templ, src, info->src.level);
src_templ.format = info->src.format;
src_view = pipe->create_sampler_view(pipe, src, &src_templ);
/* Copy. */
util_blitter_blit_generic(ctx->blitter, dst_view, &info->dst.box,
src_view, &info->src.box, src->width0, src->height0,
info->mask, info->filter,
info->scissor_enable ? &info->scissor : NULL,
info->alpha_blend);
pipe_surface_reference(&dst_view, NULL);
pipe_sampler_view_reference(&src_view, NULL);
}
/**
* _copy_region using pipe (3d engine)
*/
static bool
fd_blitter_pipe_copy_region(struct fd_context *ctx,
struct pipe_resource *dst,
unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src,
unsigned src_level,
const struct pipe_box *src_box)
{
/* not until we allow rendertargets to be buffers */
if (dst->target == PIPE_BUFFER || src->target == PIPE_BUFFER)
return false;
if (!util_blitter_is_copy_supported(ctx->blitter, dst, src))
return false;
/* TODO we could discard if dst box covers dst level fully.. */
fd_blitter_pipe_begin(ctx, false, false, FD_STAGE_BLIT);
util_blitter_copy_texture(ctx->blitter,
dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
fd_blitter_pipe_end(ctx);
return true;
}
/**
* Copy a block of pixels from one resource to another.
* The resource must be of the same format.
* Resources with nr_samples > 1 are not allowed.
*/
void
fd_resource_copy_region(struct pipe_context *pctx,
struct pipe_resource *dst,
unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src,
unsigned src_level,
const struct pipe_box *src_box)
{
struct fd_context *ctx = fd_context(pctx);
/* TODO if we have 2d core, or other DMA engine that could be used
* for simple copies and reasonably easily synchronized with the 3d
* core, this is where we'd plug it in..
*/
/* try blit on 3d pipe: */
if (fd_blitter_pipe_copy_region(ctx,
dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box))
return;
/* else fallback to pure sw: */
util_resource_copy_region(pctx,
dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
}
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