1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
FreeRDP: A Remote Desktop Protocol client.
RemoteFX Codec Library - Decode
Copyright 2011 Vic Lee
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "rfx_rlgr.h"
#include "rfx_differential.h"
#include "rfx_quantization.h"
#include "rfx_dwt.h"
#include "rfx_decode.h"
static __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
rfx_decode_format_RGB(sint16 * r_buf, sint16 * g_buf, sint16 * b_buf,
RFX_PIXEL_FORMAT pixel_format, uint8 * dst_buf)
{
sint16 * r = r_buf;
sint16 * g = g_buf;
sint16 * b = b_buf;
uint8 * dst = dst_buf;
int i;
switch (pixel_format)
{
case RFX_PIXEL_FORMAT_BGRA:
for (i = 0; i < 4096; i++)
{
*dst++ = (uint8) (*b++);
*dst++ = (uint8) (*g++);
*dst++ = (uint8) (*r++);
*dst++ = 0xFF;
}
break;
case RFX_PIXEL_FORMAT_RGBA:
for (i = 0; i < 4096; i++)
{
*dst++ = (uint8) (*r++);
*dst++ = (uint8) (*g++);
*dst++ = (uint8) (*b++);
*dst++ = 0xFF;
}
break;
case RFX_PIXEL_FORMAT_BGR:
for (i = 0; i < 4096; i++)
{
*dst++ = (uint8) (*b++);
*dst++ = (uint8) (*g++);
*dst++ = (uint8) (*r++);
}
break;
case RFX_PIXEL_FORMAT_RGB:
for (i = 0; i < 4096; i++)
{
*dst++ = (uint8) (*r++);
*dst++ = (uint8) (*g++);
*dst++ = (uint8) (*b++);
}
break;
default:
break;
}
}
#define MINMAX(_v,_l,_h) ((_v) < (_l) ? (_l) : ((_v) > (_h) ? (_h) : (_v)))
void
rfx_decode_YCbCr_to_RGB(sint16 * y_r_buf, sint16 * cb_g_buf, sint16 * cr_b_buf)
{
sint16 y, cb, cr;
sint16 r, g, b;
int i;
for (i = 0; i < 4096; i++)
{
y = y_r_buf[i] + 128;
cb = cb_g_buf[i];
cr = cr_b_buf[i];
r = (y + cr + (cr >> 2) + (cr >> 3) + (cr >> 5));
y_r_buf[i] = MINMAX(r, 0, 255);
g = (y - ((cb >> 2) + (cb >> 4) + (cb >> 5)) - ((cr >> 1) + (cr >> 3) + (cr >> 4) + (cr >> 5)));
cb_g_buf[i] = MINMAX(g, 0, 255);
b = (y + cb + (cb >> 1) + (cb >> 2) + (cb >> 6));
cr_b_buf[i] = MINMAX(b, 0, 255);
}
}
static void
rfx_decode_component(RFX_CONTEXT * context, const uint32 * quantization_values,
const uint8 * data, int size, sint16 * buffer)
{
PROFILER_ENTER(context->prof_rfx_decode_component);
PROFILER_ENTER(context->prof_rfx_rlgr_decode);
rfx_rlgr_decode(context->mode, data, size, buffer, 4096);
PROFILER_EXIT(context->prof_rfx_rlgr_decode);
PROFILER_ENTER(context->prof_rfx_differential_decode);
rfx_differential_decode(buffer + 4032, 64);
PROFILER_EXIT(context->prof_rfx_differential_decode);
PROFILER_ENTER(context->prof_rfx_quantization_decode);
context->quantization_decode(buffer, quantization_values);
PROFILER_EXIT(context->prof_rfx_quantization_decode);
PROFILER_ENTER(context->prof_rfx_dwt_2d_decode);
context->dwt_2d_decode(buffer, context->dwt_buffer);
PROFILER_EXIT(context->prof_rfx_dwt_2d_decode);
PROFILER_EXIT(context->prof_rfx_decode_component);
}
uint8*
rfx_decode_rgb(RFX_CONTEXT * context,
const uint8 * y_data, int y_size, const uint32 * y_quants,
const uint8 * cb_data, int cb_size, const uint32 * cb_quants,
const uint8 * cr_data, int cr_size, const uint32 * cr_quants, uint8* rgb_buffer)
{
PROFILER_ENTER(context->prof_rfx_decode_rgb);
rfx_decode_component(context, y_quants, y_data, y_size, context->y_r_buffer); /* YData */
rfx_decode_component(context, cb_quants, cb_data, cb_size, context->cb_g_buffer); /* CbData */
rfx_decode_component(context, cr_quants, cr_data, cr_size, context->cr_b_buffer); /* CrData */
PROFILER_ENTER(context->prof_rfx_decode_YCbCr_to_RGB);
context->decode_YCbCr_to_RGB(context->y_r_buffer, context->cb_g_buffer, context->cr_b_buffer);
PROFILER_EXIT(context->prof_rfx_decode_YCbCr_to_RGB);
PROFILER_ENTER(context->prof_rfx_decode_format_RGB);
rfx_decode_format_RGB(context->y_r_buffer, context->cb_g_buffer, context->cr_b_buffer,
context->pixel_format, rgb_buffer);
PROFILER_EXIT(context->prof_rfx_decode_format_RGB);
PROFILER_EXIT(context->prof_rfx_decode_rgb);
return rgb_buffer;
}
|
