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