/*
 * Copyright (C) 2021 Collabora, Ltd.
 *
 * 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.
 *
 */

#ifndef __PAN_BLITTER_H
#define __PAN_BLITTER_H

#include "genxml/gen_macros.h"

#include "panfrost-job.h"
#include "pan_cs.h"
#include "pan_pool.h"
#include "pan_texture.h"
#include "pan_util.h"
#include "util/format/u_format.h"

struct pan_fb_info;
struct pan_scoreboard;
struct pan_pool;
struct panfrost_device;

struct pan_blit_info {
        struct {
                struct {
                        const struct pan_image *image;
                        enum pipe_format format;
                } planes[2];
                unsigned level;
                struct {
                        int32_t x, y, z;
                        unsigned layer;
                } start, end;
        } src, dst;
        struct {
               bool enable;
               uint16_t minx, miny, maxx, maxy;
        } scissor;
        bool nearest;
};

struct pan_blit_context {
        mali_ptr rsd, vpd;
        mali_ptr textures;
        mali_ptr samplers;
        mali_ptr position;
        struct {
                enum mali_texture_dimension dim;
                struct {
                        float x, y;
                } start, end;
                union {
                        unsigned layer_offset;
                        float z_offset;
                };
        } src;
        struct {
                int32_t layer_offset;
                int32_t cur_layer;
                int32_t last_layer;
        } dst;
        float z_scale;
};

void
GENX(pan_blitter_init)(struct panfrost_device *dev,
                       struct pan_pool *bin_pool,
                       struct pan_pool *desc_pool);

void
GENX(pan_blitter_cleanup)(struct panfrost_device *dev);

unsigned
GENX(pan_preload_fb)(struct pan_pool *desc_pool,
                     struct pan_scoreboard *scoreboard,
                     struct pan_fb_info *fb,
                     mali_ptr tsd, mali_ptr tiler,
                     struct panfrost_ptr *jobs);

void
GENX(pan_blit_ctx_init)(struct panfrost_device *dev,
                        const struct pan_blit_info *info,
                        struct pan_pool *blit_pool,
                        struct pan_blit_context *ctx);

static inline bool
pan_blit_next_surface(struct pan_blit_context *ctx)
{
        if (ctx->dst.last_layer < ctx->dst.layer_offset) {
                if (ctx->dst.cur_layer <= ctx->dst.last_layer)
                        return false;

                ctx->dst.cur_layer--;
        } else {
                if (ctx->dst.cur_layer >= ctx->dst.last_layer)
                        return false;

                ctx->dst.cur_layer++;
        }

        return true;
}

struct panfrost_ptr
GENX(pan_blit)(struct pan_blit_context *ctx,
               struct pan_pool *pool,
               struct pan_scoreboard *scoreboard,
               mali_ptr tsd, mali_ptr tiler);

#endif