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/*
* Copyright (C) 2014 Broadcom
* Copyright (C) 2019 Collabora
*
* 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 (Collabora):
* Tomeu Vizoso <tomeu.vizoso@collabora.com>
* Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
*
*/
#include "pan_context.h"
#include "util/u_format.h"
static void
panfrost_blitter_save(
struct panfrost_context *ctx,
struct blitter_context *blitter)
{
util_blitter_save_vertex_buffer_slot(blitter, ctx->vertex_buffers);
util_blitter_save_vertex_elements(blitter, ctx->vertex);
util_blitter_save_vertex_shader(blitter, ctx->vs);
util_blitter_save_rasterizer(blitter, ctx->rasterizer);
util_blitter_save_viewport(blitter, &ctx->pipe_viewport);
util_blitter_save_scissor(blitter, &ctx->scissor);
util_blitter_save_fragment_shader(blitter, ctx->fs);
util_blitter_save_blend(blitter, ctx->blend);
util_blitter_save_depth_stencil_alpha(blitter, ctx->depth_stencil);
util_blitter_save_stencil_ref(blitter, &ctx->stencil_ref);
util_blitter_save_so_targets(blitter, 0, NULL);
/* For later */
// util_blitter_save_sample_mask(blitter, ctx->sample_mask);
util_blitter_save_framebuffer(blitter, &ctx->pipe_framebuffer);
util_blitter_save_fragment_sampler_states(blitter,
ctx->sampler_count[PIPE_SHADER_FRAGMENT],
(void **)(&ctx->samplers[PIPE_SHADER_FRAGMENT]));
util_blitter_save_fragment_sampler_views(blitter,
ctx->sampler_view_count[PIPE_SHADER_FRAGMENT],
(struct pipe_sampler_view **)&ctx->sampler_views[PIPE_SHADER_FRAGMENT]);
}
static bool
panfrost_u_blitter_blit(struct pipe_context *pipe,
const struct pipe_blit_info *info)
{
struct panfrost_context *ctx = pan_context(pipe);
if (!util_blitter_is_blit_supported(ctx->blitter, info)) {
fprintf(stderr, "blit unsupported %s -> %s\n",
util_format_short_name(info->src.resource->format),
util_format_short_name(info->dst.resource->format));
return false;
}
/* TODO: Scissor */
panfrost_blitter_save(ctx, ctx->blitter);
util_blitter_blit(ctx->blitter, info);
return true;
}
void
panfrost_blit(struct pipe_context *pipe,
const struct pipe_blit_info *info)
{
/* We don't have a hardware blit, so we just fake it with
* u_blitter. We could do a little better by culling
* vertex jobs, though. */
if (panfrost_u_blitter_blit(pipe, info))
return;
fprintf(stderr, "Unhandled blit");
return;
}
/* Blits a framebuffer to "itself". Mali is a tiler, so the
* framebuffer is implicitly cleared every frame, so if there is
* no actual glClear(), we have to blit it back ourselves.
*/
void
panfrost_blit_wallpaper(struct panfrost_context *ctx)
{
struct pipe_blit_info binfo = { };
panfrost_blitter_save(ctx, ctx->blitter_wallpaper);
binfo.src.resource = binfo.dst.resource = ctx->pipe_framebuffer.cbufs[0]->texture;
binfo.src.level = binfo.dst.level = 0;
binfo.src.box.x = binfo.dst.box.x = 0;
binfo.src.box.y = binfo.dst.box.y = 0;
binfo.src.box.width = binfo.dst.box.width = ctx->pipe_framebuffer.width;
binfo.src.box.height = binfo.dst.box.height = ctx->pipe_framebuffer.height;
binfo.src.box.depth = binfo.dst.box.depth = 1;
binfo.src.format = binfo.dst.format = ctx->pipe_framebuffer.cbufs[0]->texture->format;
assert(ctx->pipe_framebuffer.nr_cbufs == 1);
binfo.mask = PIPE_MASK_RGBA;
binfo.filter = PIPE_TEX_FILTER_LINEAR;
binfo.scissor_enable = FALSE;
util_blitter_blit(ctx->blitter_wallpaper, &binfo);
}
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