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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/**
* FreeRDP: A Remote Desktop Protocol Client
* GDI Bitmap Functions
*
* Copyright 2010-2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* 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 <string.h>
#include <stdlib.h>
#include <freerdp/api.h>
#include <freerdp/freerdp.h>
#include <freerdp/gdi/gdi.h>
#include <freerdp/codec/color.h>
#include <freerdp/gdi/32bpp.h>
#include <freerdp/gdi/16bpp.h>
#include <freerdp/gdi/8bpp.h>
#include <freerdp/gdi/bitmap.h>
p_BitBlt BitBlt_[5] =
{
NULL,
BitBlt_8bpp,
BitBlt_16bpp,
NULL,
BitBlt_32bpp
};
/**
* Get pixel at the given coordinates.\n
* @msdn{dd144909}
* @param hdc device context
* @param nXPos pixel x position
* @param nYPos pixel y position
* @return pixel color
*/
INLINE GDI_COLOR gdi_GetPixel(HGDI_DC hdc, int nXPos, int nYPos)
{
HGDI_BITMAP hBmp = (HGDI_BITMAP) hdc->selectedObject;
GDI_COLOR* colorp = (GDI_COLOR*)&(hBmp->data[(nYPos * hBmp->width * hdc->bytesPerPixel) + nXPos * hdc->bytesPerPixel]);
return (GDI_COLOR) *colorp;
}
INLINE uint8 gdi_GetPixel_8bpp(HGDI_BITMAP hBmp, int X, int Y)
{
return *((uint8*)&(hBmp->data[(Y * hBmp->width) + X]));
}
INLINE uint16 gdi_GetPixel_16bpp(HGDI_BITMAP hBmp, int X, int Y)
{
return *((uint16*)&(hBmp->data[(Y * hBmp->width * 2) + X * 2]));
}
INLINE uint32 gdi_GetPixel_32bpp(HGDI_BITMAP hBmp, int X, int Y)
{
return *((uint32*)&(hBmp->data[(Y * hBmp->width * 4) + X * 4]));
}
INLINE uint8* gdi_GetPointer_8bpp(HGDI_BITMAP hBmp, int X, int Y)
{
return ((uint8*)&(hBmp->data[(Y * hBmp->width) + X]));
}
INLINE uint16* gdi_GetPointer_16bpp(HGDI_BITMAP hBmp, int X, int Y)
{
return ((uint16*)&(hBmp->data[(Y * hBmp->width * 2) + X * 2]));
}
INLINE uint32* gdi_GetPointer_32bpp(HGDI_BITMAP hBmp, int X, int Y)
{
return ((uint32*)&(hBmp->data[(Y * hBmp->width * 4) + X * 4]));
}
/**
* Set pixel at the given coordinates.\n
* @msdn{dd145078}
* @param hdc device context
* @param X pixel x position
* @param Y pixel y position
* @param crColor new pixel color
* @return
*/
INLINE GDI_COLOR gdi_SetPixel(HGDI_DC hdc, int X, int Y, GDI_COLOR crColor)
{
HGDI_BITMAP hBmp = (HGDI_BITMAP) hdc->selectedObject;
*((GDI_COLOR*)&(hBmp->data[(Y * hBmp->width * hdc->bytesPerPixel) + X * hdc->bytesPerPixel])) = crColor;
return 0;
}
INLINE void gdi_SetPixel_8bpp(HGDI_BITMAP hBmp, int X, int Y, uint8 pixel)
{
*((uint8*)&(hBmp->data[(Y * hBmp->width) + X])) = pixel;
}
INLINE void gdi_SetPixel_16bpp(HGDI_BITMAP hBmp, int X, int Y, uint16 pixel)
{
*((uint16*)&(hBmp->data[(Y * hBmp->width * 2) + X * 2])) = pixel;
}
INLINE void gdi_SetPixel_32bpp(HGDI_BITMAP hBmp, int X, int Y, uint32 pixel)
{
*((uint32*)&(hBmp->data[(Y * hBmp->width * 4) + X * 4])) = pixel;
}
/**
* Create a new bitmap with the given width, height, color format and pixel buffer.\n
* @msdn{dd183485}
* @param nWidth width
* @param nHeight height
* @param cBitsPerPixel bits per pixel
* @param data pixel buffer
* @return new bitmap
*/
HGDI_BITMAP gdi_CreateBitmap(int nWidth, int nHeight, int cBitsPerPixel, uint8* data)
{
HGDI_BITMAP hBitmap = (HGDI_BITMAP) malloc(sizeof(GDI_BITMAP));
hBitmap->objectType = GDIOBJECT_BITMAP;
hBitmap->bitsPerPixel = cBitsPerPixel;
hBitmap->bytesPerPixel = (cBitsPerPixel + 1) / 8;
hBitmap->scanline = nWidth * hBitmap->bytesPerPixel;
hBitmap->width = nWidth;
hBitmap->height = nHeight;
hBitmap->data = data;
return hBitmap;
}
/**
* Create a new bitmap of the given width and height compatible with the current device context.\n
* @msdn{dd183488}
* @param hdc device context
* @param nWidth width
* @param nHeight height
* @return new bitmap
*/
HGDI_BITMAP gdi_CreateCompatibleBitmap(HGDI_DC hdc, int nWidth, int nHeight)
{
HGDI_BITMAP hBitmap = (HGDI_BITMAP) malloc(sizeof(GDI_BITMAP));
hBitmap->objectType = GDIOBJECT_BITMAP;
hBitmap->bytesPerPixel = hdc->bytesPerPixel;
hBitmap->bitsPerPixel = hdc->bitsPerPixel;
hBitmap->width = nWidth;
hBitmap->height = nHeight;
hBitmap->data = malloc(nWidth * nHeight * hBitmap->bytesPerPixel);
hBitmap->scanline = nWidth * hBitmap->bytesPerPixel;
return hBitmap;
}
/**
* Perform a bit blit operation on the given pixel buffers.\n
* @msdn{dd183370}
* @param hdcDest destination device context
* @param nXDest destination x1
* @param nYDest destination y1
* @param nWidth width
* @param nHeight height
* @param hdcSrc source device context
* @param nXSrc source x1
* @param nYSrc source y1
* @param rop raster operation code
* @return 1 if successful, 0 otherwise
*/
int gdi_BitBlt(HGDI_DC hdcDest, int nXDest, int nYDest, int nWidth, int nHeight, HGDI_DC hdcSrc, int nXSrc, int nYSrc, int rop)
{
p_BitBlt _BitBlt = BitBlt_[IBPP(hdcDest->bitsPerPixel)];
if (_BitBlt != NULL)
return _BitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, rop);
else
return 0;
}
|
