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/*
   Copyright (C) 2009 Red Hat, Inc.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are
   met:

       * Redistributions of source code must retain the above copyright
         notice, this list of conditions and the following disclaimer.
       * Redistributions in binary form must reproduce the above copyright
         notice, this list of conditions and the following disclaimer in
         the documentation and/or other materials provided with the
         distribution.
       * Neither the name of the copyright holder nor the names of its
         contributors may be used to endorse or promote products derived
         from this software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
   PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/


#ifndef _H_QXL_DEV
#define _H_QXL_DEV

#include <spice/types.h>
#include <spice/barrier.h>
#include <spice/ipc_ring.h>
#include <spice/draw.h>

#include <spice/start-packed.h>

#define REDHAT_PCI_VENDOR_ID 0x1b36
#define QXL_DEVICE_ID 0x01ff /* 0x100-0x11f reserved for spice, 0x1ff used for unstable work */
#define QXL_REVISION 0x01

#define QXL_ROM_MAGIC (*(uint32_t*)"QXRO")
#define QXL_RAM_MAGIC (*(uint32_t*)"QXRA")

enum {
    QXL_RAM_RANGE_INDEX,
    QXL_VRAM_RANGE_INDEX,
    QXL_ROM_RANGE_INDEX,
    QXL_IO_RANGE_INDEX,

    QXL_PCI_RANGES
};

/* qxl-1 compat: append only */
enum {
    QXL_IO_NOTIFY_CMD,
    QXL_IO_NOTIFY_CURSOR,
    QXL_IO_UPDATE_AREA,
    QXL_IO_UPDATE_IRQ,
    QXL_IO_NOTIFY_OOM,
    QXL_IO_RESET,
    QXL_IO_SET_MODE,                  /* qxl-1 */
    QXL_IO_LOG,
    /* appended for qxl-2 */
    QXL_IO_MEMSLOT_ADD,
    QXL_IO_MEMSLOT_DEL,
    QXL_IO_DETACH_PRIMARY,
    QXL_IO_ATTACH_PRIMARY,
    QXL_IO_CREATE_PRIMARY,
    QXL_IO_DESTROY_PRIMARY,
    QXL_IO_DESTROY_SURFACE_WAIT,
    QXL_IO_DESTROY_ALL_SURFACES,

    QXL_IO_RANGE_SIZE
};

/* qxl-1 compat: append only */
typedef struct SPICE_ATTR_PACKED QXLRom {
    uint32_t magic;
    uint32_t id;
    uint32_t update_id;
    uint32_t compression_level;
    uint32_t log_level;
    uint32_t mode;                    /* qxl-1 */
    uint32_t modes_offset;
    uint32_t num_pages;
    uint32_t pages_offset;            /* qxl-1 */
    uint32_t draw_area_offset;        /* qxl-1 */
    uint32_t surface0_area_size;      /* qxl-1 name: draw_area_size */
    uint32_t ram_header_offset;
    uint32_t mm_clock;
    /* appended for qxl-2 */
    uint32_t n_surfaces;
    uint64_t flags;
    uint8_t slots_start;
    uint8_t slots_end;
    uint8_t slot_gen_bits;
    uint8_t slot_id_bits;
    uint8_t slot_generation;
    uint8_t padding[3]; /* Padding to 32bit align */
} QXLRom;

/* qxl-1 compat: fixed */
typedef struct SPICE_ATTR_PACKED QXLMode {
    uint32_t id;
    uint32_t x_res;
    uint32_t y_res;
    uint32_t bits;
    uint32_t stride;
    uint32_t x_mili;
    uint32_t y_mili;
    uint32_t orientation;
} QXLMode;

/* qxl-1 compat: fixed */
typedef struct SPICE_ATTR_PACKED QXLModes {
    uint32_t n_modes;
    QXLMode modes[0];
} QXLModes;

typedef uint64_t QXLPHYSICAL;
typedef uint32_t QXLFIXED; //fixed 28.4

/* qxl-1 compat: append only */
enum QXLCmdType {
    QXL_CMD_NOP,
    QXL_CMD_DRAW,
    QXL_CMD_UPDATE,
    QXL_CMD_CURSOR,
    QXL_CMD_MESSAGE,
    QXL_CMD_SURFACE,
};

/* qxl-1 compat: fixed */
typedef struct SPICE_ATTR_PACKED QXLCommand {
    QXLPHYSICAL data;
    uint32_t type;
    uint32_t padding;
} QXLCommand;

#define QXL_COMMAND_FLAG_COMPAT (1<<0)

typedef struct SPICE_ATTR_PACKED QXLCommandExt {
    QXLCommand cmd;
    uint32_t group_id;
    uint32_t flags;
} QXLCommandExt;

typedef struct SPICE_ATTR_PACKED QXLMemSlot {
    uint64_t mem_start;
    uint64_t mem_end;
} QXLMemSlot;

#define QXL_SURF_TYPE_PRIMARY      0

#define QXL_SURF_FLAG_KEEP_DATA    (1 << 0)

typedef struct SPICE_ATTR_PACKED QXLSurfaceCreate {
    uint32_t width;
    uint32_t height;
    int32_t stride;
    uint32_t format;
    uint32_t position;
    uint32_t mouse_mode;
    uint32_t flags;
    uint32_t type;
    QXLPHYSICAL mem;
} QXLSurfaceCreate;

SPICE_RING_DECLARE(QXLCommandRing, QXLCommand, 32);
SPICE_RING_DECLARE(QXLCursorRing, QXLCommand, 32);

SPICE_RING_DECLARE(QXLReleaseRing, uint64_t, 8);

#define QXL_LOG_BUF_SIZE 4096

#define QXL_INTERRUPT_DISPLAY (1 << 0)
#define QXL_INTERRUPT_CURSOR (1 << 1)

/* qxl-1 compat: append only */
typedef struct SPICE_ATTR_PACKED QXLRam {
    uint32_t magic;
    uint32_t int_pending;
    uint32_t int_mask;
    uint8_t log_buf[QXL_LOG_BUF_SIZE];
    QXLCommandRing cmd_ring;
    QXLCursorRing cursor_ring;
    QXLReleaseRing release_ring;
    SpiceRect update_area;
    /* appended for qxl-2 */
    uint32_t update_surface;
    QXLMemSlot mem_slot;
    QXLSurfaceCreate create_surface;
    uint64_t flags;
} QXLRam;

typedef union QXLReleaseInfo {
    uint64_t id;      // in
    uint64_t next;    // out
} QXLReleaseInfo;

typedef struct QXLReleaseInfoExt {
    QXLReleaseInfo *info;
    uint32_t group_id;
} QXLReleaseInfoExt;

typedef struct  SPICE_ATTR_PACKED QXLDataChunk {
    uint32_t data_size;
    QXLPHYSICAL prev_chunk;
    QXLPHYSICAL next_chunk;
    uint8_t data[0];
} QXLDataChunk;

typedef struct SPICE_ATTR_PACKED QXLMessage {
    QXLReleaseInfo release_info;
    uint8_t data[0];
} QXLMessage;

typedef struct SPICE_ATTR_PACKED QXLCompatUpdateCmd {
    QXLReleaseInfo release_info;
    SpiceRect area;
    uint32_t update_id;
} QXLCompatUpdateCmd;

typedef struct SPICE_ATTR_PACKED QXLUpdateCmd {
    QXLReleaseInfo release_info;
    SpiceRect area;
    uint32_t update_id;
    uint32_t surface_id;
} QXLUpdateCmd;

typedef struct SPICE_ATTR_PACKED QXLCursor {
    SpiceCursorHeader header;
    uint32_t data_size;
    QXLDataChunk chunk;
} QXLCursor;

enum {
    QXL_CURSOR_SET,
    QXL_CURSOR_MOVE,
    QXL_CURSOR_HIDE,
    QXL_CURSOR_TRAIL,
};

#define QXL_CURSUR_DEVICE_DATA_SIZE 128

typedef struct SPICE_ATTR_PACKED QXLCursorCmd {
    QXLReleaseInfo release_info;
    uint8_t type;
    union {
        struct SPICE_ATTR_PACKED {
            SpicePoint16 position;
            uint8_t visible;
            QXLPHYSICAL shape;
        } set;
        struct SPICE_ATTR_PACKED {
            uint16_t length;
            uint16_t frequency;
        } trail;
        SpicePoint16 position;
    } u;
    uint8_t device_data[QXL_CURSUR_DEVICE_DATA_SIZE]; //todo: dynamic size from rom
} QXLCursorCmd;

enum {
    QXL_DRAW_NOP,
    QXL_DRAW_FILL,
    QXL_DRAW_OPAQUE,
    QXL_DRAW_COPY,
    QXL_COPY_BITS,
    QXL_DRAW_BLEND,
    QXL_DRAW_BLACKNESS,
    QXL_DRAW_WHITENESS,
    QXL_DRAW_INVERS,
    QXL_DRAW_ROP3,
    QXL_DRAW_STROKE,
    QXL_DRAW_TEXT,
    QXL_DRAW_TRANSPARENT,
    QXL_DRAW_ALPHA_BLEND,
};

typedef struct SPICE_ATTR_PACKED QXLString {
    uint32_t data_size;
    uint16_t length;
    uint16_t flags;
    QXLDataChunk chunk;
} QXLString;

typedef struct SPICE_ATTR_PACKED QXLCopyBits {
    SpicePoint src_pos;
} QXLCopyBits;

#define QXL_EFFECT_BLEND 0
#define QXL_EFFECT_OPAQUE 1
#define QXL_EFFECT_REVERT_ON_DUP 2
#define QXL_EFFECT_BLACKNESS_ON_DUP 3
#define QXL_EFFECT_WHITENESS_ON_DUP 4
#define QXL_EFFECT_NOP_ON_DUP 5
#define QXL_EFFECT_NOP 6
#define QXL_EFFECT_OPAQUE_BRUSH 7

typedef struct SPICE_ATTR_PACKED QXLBrush {
    uint32_t type;
    union {
        uint32_t color;
        SpicePattern pattern;
    } u;
} QXLBrush;

typedef struct SPICE_ATTR_PACKED QXLQMask {
    uint8_t flags;
    SpicePoint pos;
    QXLPHYSICAL bitmap;
} QXLQMask;

typedef struct SPICE_ATTR_PACKED QXLFill {
    QXLBrush brush;
    uint16_t rop_descriptor;
    QXLQMask mask;
} QXLFill;

typedef struct SPICE_ATTR_PACKED QXLOpaque {
    QXLPHYSICAL src_bitmap;
    SpiceRect src_area;
    QXLBrush brush;
    uint16_t rop_descriptor;
    uint8_t scale_mode;
    QXLQMask mask;
} QXLOpaque;

typedef struct SPICE_ATTR_PACKED QXLCopy {
    QXLPHYSICAL src_bitmap;
    SpiceRect src_area;
    uint16_t rop_descriptor;
    uint8_t scale_mode;
    QXLQMask mask;
} QXLCopy, QXLBlend;

typedef struct SPICE_ATTR_PACKED QXLTransparent {
    QXLPHYSICAL src_bitmap;
    SpiceRect src_area;
    uint32_t src_color;
    uint32_t true_color;
} QXLTransparent;

typedef struct SPICE_ATTR_PACKED QXLAlphaBlnd {
    uint16_t alpha_flags;
    uint8_t alpha;
    QXLPHYSICAL src_bitmap;
    SpiceRect src_area;
} QXLAlphaBlnd;

typedef struct SPICE_ATTR_PACKED QXLCompatAlphaBlnd {
    uint8_t alpha;
    QXLPHYSICAL src_bitmap;
    SpiceRect src_area;
} QXLCompatAlphaBlnd;

typedef struct SPICE_ATTR_PACKED QXLRop3 {
    QXLPHYSICAL src_bitmap;
    SpiceRect src_area;
    QXLBrush brush;
    uint8_t rop3;
    uint8_t scale_mode;
    QXLQMask mask;
} QXLRop3;

typedef struct SPICE_ATTR_PACKED QXLStroke {
    QXLPHYSICAL path;
    SpiceLineAttr attr;
    QXLBrush brush;
    uint16_t fore_mode;
    uint16_t back_mode;
} QXLStroke;

typedef struct SPICE_ATTR_PACKED QXLText {
    QXLPHYSICAL str;
    SpiceRect back_area;
    QXLBrush fore_brush;
    QXLBrush back_brush;
    uint16_t fore_mode;
    uint16_t back_mode;
} QXLText;

typedef struct SPICE_ATTR_PACKED QXLBlackness {
    QXLQMask mask;
} QXLBlackness, QXLInvers, QXLWhiteness;

typedef struct SPICE_ATTR_PACKED QXLCompatDrawable {
    QXLReleaseInfo release_info;
    uint8_t effect;
    uint8_t type;
    uint16_t bitmap_offset;
    SpiceRect bitmap_area;
    SpiceRect bbox;
    SpiceClip clip;
    uint32_t mm_time;
    union {
        QXLFill fill;
        QXLOpaque opaque;
        QXLCopy copy;
        QXLTransparent transparent;
        QXLCompatAlphaBlnd alpha_blend;
        QXLCopyBits copy_bits;
        QXLBlend blend;
        QXLRop3 rop3;
        QXLStroke stroke;
        QXLText text;
        QXLBlackness blackness;
        QXLInvers invers;
        QXLWhiteness whiteness;
    } u;
} QXLCompatDrawable;

typedef struct SPICE_ATTR_PACKED QXLDrawable {
    QXLReleaseInfo release_info;
    uint32_t surface_id;
    uint8_t effect;
    uint8_t type;
    uint8_t self_bitmap;
    SpiceRect self_bitmap_area;
    SpiceRect bbox;
    SpiceClip clip;
    uint32_t mm_time;
    int32_t surfaces_dest[3];
    SpiceRect surfaces_rects[3];
    union {
        QXLFill fill;
        QXLOpaque opaque;
        QXLCopy copy;
        QXLTransparent transparent;
        QXLAlphaBlnd alpha_blend;
        QXLCopyBits copy_bits;
        QXLBlend blend;
        QXLRop3 rop3;
        QXLStroke stroke;
        QXLText text;
        QXLBlackness blackness;
        QXLInvers invers;
        QXLWhiteness whiteness;
    } u;
} QXLDrawable;

enum QXLSurfaceCmdType {
    QXL_SURFACE_CMD_CREATE,
    QXL_SURFACE_CMD_DESTROY,
};

typedef struct SPICE_ATTR_PACKED QXLSurface {
    uint32_t format;
    uint32_t width;
    uint32_t height;
    int32_t stride;
    QXLPHYSICAL data;
} QXLSurface;

typedef struct SPICE_ATTR_PACKED QXLSurfaceCmd {
    QXLReleaseInfo release_info;
    uint32_t surface_id;
    uint8_t type;
    uint32_t flags;
    union {
        QXLSurface surface_create;
    } u;
} QXLSurfaceCmd;

typedef struct SPICE_ATTR_PACKED QXLClipRects {
    uint32_t num_rects;
    QXLDataChunk chunk;
} QXLClipRects;

enum {
    QXL_PATH_BEGIN = (1 << 0),
    QXL_PATH_END = (1 << 1),
    QXL_PATH_CLOSE = (1 << 3),
    QXL_PATH_BEZIER = (1 << 4),
};

typedef struct SPICE_ATTR_PACKED QXLPath {
    uint32_t data_size;
    QXLDataChunk chunk;
} QXLPath;

enum {
    QXL_IMAGE_GROUP_DRIVER,
    QXL_IMAGE_GROUP_DEVICE,
    QXL_IMAGE_GROUP_RED,
    QXL_IMAGE_GROUP_DRIVER_DONT_CACHE,
};

typedef struct SPICE_ATTR_PACKED QXLImageID {
    uint32_t group;
    uint32_t unique;
} QXLImageID;

typedef union {
  QXLImageID id;
  uint64_t value;
} QXLImageIDUnion;

enum {
    QXL_IMAGE_CACHE = (1 << 0),
    QXL_IMAGE_HIGH_BITS_SET = (1 << 1),
};

enum {
    QXL_BITMAP_DIRECT = (1 << 0),
    QXL_BITMAP_UNSTABLE = (1 << 1),
    QXL_BITMAP_TOP_DOWN = (1 << 2), // == SPICE_BITMAP_FLAGS_TOP_DOWN
};

#define QXL_SET_IMAGE_ID(image, _group, _unique) {              \
    (image)->descriptor.id = (((uint64_t)_unique) << 32) | _group;	\
}

typedef struct SPICE_ATTR_PACKED QXLImage {
    SpiceImageDescriptor descriptor;
    union { // variable length
        SpiceBitmap bitmap;
        SpiceQUICData quic;
        SpiceSurface surface_image;
    };
} QXLImage;

#include <spice/end-packed.h>

#endif /* _H_QXL_DEV */