5136a05269
Profiling with callgrind seems to show that a lot of time is spent in the palette code (mostly due to memory allocation and qdict to int conversion). This patch adds a VncPalette implementation. The palette is stored in a hash table, like qdict, but which does way less memory allocations, and doesn't suffer from the QObject overhead. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/*
|
|
* QEMU VNC display driver: palette hash table
|
|
*
|
|
* From libvncserver/libvncserver/tight.c
|
|
* Copyright (C) 2000, 2001 Const Kaplinsky. All Rights Reserved.
|
|
* Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
|
|
*
|
|
* Copyright (C) 2010 Corentin Chary <corentin.chary@gmail.com>
|
|
*
|
|
* 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 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 VNC_PALETTE_H
|
|
#define VNC_PALETTE_H
|
|
|
|
#include "qlist.h"
|
|
#include "qemu-queue.h"
|
|
#include <stdint.h>
|
|
|
|
#define VNC_PALETTE_HASH_SIZE 256
|
|
|
|
typedef struct VncPaletteEntry {
|
|
int idx;
|
|
uint32_t color;
|
|
QLIST_ENTRY(VncPaletteEntry) next;
|
|
} VncPaletteEntry;
|
|
|
|
typedef struct VncPalette {
|
|
QObject_HEAD;
|
|
size_t size;
|
|
size_t max;
|
|
int bpp;
|
|
QLIST_HEAD(,VncPaletteEntry) table[VNC_PALETTE_HASH_SIZE];
|
|
} VncPalette;
|
|
|
|
VncPalette *palette_new(size_t max, int bpp);
|
|
void palette_destroy(VncPalette *palette);
|
|
|
|
int palette_put(VncPalette *palette, uint32_t color);
|
|
int palette_idx(const VncPalette *palette, uint32_t color);
|
|
size_t palette_size(const VncPalette *palette);
|
|
|
|
void palette_iter(const VncPalette *palette,
|
|
void (*iter)(int idx, uint32_t color, void *opaque),
|
|
void *opaque);
|
|
|
|
#endif /* VNC_PALETTE_H */
|