mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-11-14 18:18:24 +00:00
130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/*
|
|
Looking Glass - KVM FrameRelay (KVMFR) Client
|
|
Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
|
|
https://looking-glass.hostfission.com
|
|
|
|
This program is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free Software
|
|
Foundation; either version 2 of the License, or (at your option) any later
|
|
version.
|
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
|
|
PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
|
Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "interface/decoder.h"
|
|
|
|
#include "common/debug.h"
|
|
#include "common/memcpySSE.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
struct Inst
|
|
{
|
|
LG_RendererFormat format;
|
|
const uint8_t * src;
|
|
};
|
|
|
|
static bool lgd_null_create (void ** opaque);
|
|
static void lgd_null_destroy (void * opaque);
|
|
static bool lgd_null_initialize (void * opaque, const LG_RendererFormat format, SDL_Window * window);
|
|
static void lgd_null_deinitialize (void * opaque);
|
|
static LG_OutFormat lgd_null_get_out_format (void * opaque);
|
|
static unsigned int lgd_null_get_frame_pitch (void * opaque);
|
|
static unsigned int lgd_null_get_frame_stride(void * opaque);
|
|
static bool lgd_null_decode (void * opaque, const uint8_t * src, size_t srcSize);
|
|
static const uint8_t * lgd_null_get_buffer (void * opaque);
|
|
|
|
static bool lgd_null_create(void ** opaque)
|
|
{
|
|
// create our local storage
|
|
*opaque = malloc(sizeof(struct Inst));
|
|
if (!*opaque)
|
|
{
|
|
DEBUG_INFO("Failed to allocate %lu bytes", sizeof(struct Inst));
|
|
return false;
|
|
}
|
|
memset(*opaque, 0, sizeof(struct Inst));
|
|
return true;
|
|
}
|
|
|
|
static void lgd_null_destroy(void * opaque)
|
|
{
|
|
free(opaque);
|
|
}
|
|
|
|
static bool lgd_null_initialize(void * opaque, const LG_RendererFormat format, SDL_Window * window)
|
|
{
|
|
struct Inst * this = (struct Inst *)opaque;
|
|
memcpy(&this->format, &format, sizeof(LG_RendererFormat));
|
|
return true;
|
|
}
|
|
|
|
static void lgd_null_deinitialize(void * opaque)
|
|
{
|
|
struct Inst * this = (struct Inst *)opaque;
|
|
memset(this, 0, sizeof(struct Inst));
|
|
}
|
|
|
|
static LG_OutFormat lgd_null_get_out_format(void * opaque)
|
|
{
|
|
struct Inst * this = (struct Inst *)opaque;
|
|
switch(this->format.type)
|
|
{
|
|
case FRAME_TYPE_BGRA : return LG_OUTPUT_BGRA;
|
|
case FRAME_TYPE_RGBA : return LG_OUTPUT_RGBA;
|
|
case FRAME_TYPE_RGBA10: return LG_OUTPUT_RGBA10;
|
|
|
|
default:
|
|
DEBUG_ERROR("Unknown frame type");
|
|
return LG_OUTPUT_INVALID;
|
|
}
|
|
}
|
|
|
|
static unsigned int lgd_null_get_frame_pitch(void * opaque)
|
|
{
|
|
struct Inst * this = (struct Inst *)opaque;
|
|
return this->format.pitch;
|
|
}
|
|
|
|
static unsigned int lgd_null_get_frame_stride(void * opaque)
|
|
{
|
|
struct Inst * this = (struct Inst *)opaque;
|
|
return this->format.stride;
|
|
}
|
|
|
|
static bool lgd_null_decode(void * opaque, const uint8_t * src, size_t srcSize)
|
|
{
|
|
struct Inst * this = (struct Inst *)opaque;
|
|
this->src = src;
|
|
return true;
|
|
}
|
|
|
|
static const uint8_t * lgd_null_get_buffer(void * opaque)
|
|
{
|
|
struct Inst * this = (struct Inst *)opaque;
|
|
if (!this->src)
|
|
return NULL;
|
|
|
|
return this->src;
|
|
}
|
|
|
|
const LG_Decoder LGD_NULL =
|
|
{
|
|
.name = "NULL",
|
|
.create = lgd_null_create,
|
|
.destroy = lgd_null_destroy,
|
|
.initialize = lgd_null_initialize,
|
|
.deinitialize = lgd_null_deinitialize,
|
|
.get_out_format = lgd_null_get_out_format,
|
|
.get_frame_pitch = lgd_null_get_frame_pitch,
|
|
.get_frame_stride = lgd_null_get_frame_stride,
|
|
.decode = lgd_null_decode,
|
|
.get_buffer = lgd_null_get_buffer
|
|
}; |