?? gui_bmp.lst
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C51 COMPILER V8.05a GUI_BMP 04/11/2008 14:18:26 PAGE 1
C51 COMPILER V8.05a, COMPILATION OF MODULE GUI_BMP
OBJECT MODULE PLACED IN GUI_BMP.obj
COMPILER INVOKED BY: D:\Program Files\keil\C51\BIN\C51.EXE gui\Core\GUI_BMP.c LARGE BROWSE MDU_F120 DEBUG OBJECTEXTEND P
-RINT(.\GUI_BMP.lst) OBJECT(GUI_BMP.obj)
line level source
1 /*
2 *********************************************************************************************************
3 * uC/GUI
4 * Universal graphic software for embedded applications
5 *
6 * (c) Copyright 2002, Micrium Inc., Weston, FL
7 * (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
8 *
9 * 礐/GUI is protected by international copyright laws. Knowledge of the
10 * source code may not be used to write a similar product. This file may
11 * only be used in accordance with a license and should not be redistributed
12 * in any way. We appreciate your understanding and fairness.
13 *
14 ----------------------------------------------------------------------
15 File : GUI_BMP.c
16 Purpose : Implementation of GUI_BMP... functions
17 ---------------------------END-OF-HEADER------------------------------
18 */
19
20 #include <math.h>
21
22 #include "gui\Core\GUI_Private.h"
23
24 /*********************************************************************
25 *
26 * Static functions
27 *
28 **********************************************************************
29 */
30
31 static int _GetStep(int * pYSize, int * pY) {
32 1 if (*pYSize > 0) {
33 2 *pY = *pYSize - 1;
34 2 return -1;
35 2 } else if (*pYSize < 0) {
36 2 *pYSize = -*pYSize;
37 2 *pY = 0;
38 2 return 1;
39 2 } else {
40 2 return 0;
41 2 }
42 1 }
43
44 static int _DrawBitmap_Pal(const U8 * pData, int x0, int y0, int XSize, int YSize, int Bpp, int NumColors)
- {
45 1 int i, y, BytesPerLine, Step;
46 1 Step = _GetStep(&YSize, &y);
47 1 if (!Step) {
48 2 return 1;
49 2 }
50 1 for (i = 0; i < NumColors; i++) {
51 2 U8 r, g, b;
52 2 b = *(pData);
53 2 g = *(pData + 1);
C51 COMPILER V8.05a GUI_BMP 04/11/2008 14:18:26 PAGE 2
54 2 r = *(pData + 2);
55 2 pData += 4;
56 2 LCD__aConvTable[i] = LCD_Color2Index((b << 16) | (g << 8) | r);
57 2 }
58 1 switch (Bpp) {
59 2 case 1:
60 2 BytesPerLine = ((XSize + 31) >> 5) << 2;
61 2 break;
62 2 case 4:
63 2 BytesPerLine = (((XSize << 2) + 31) >> 5) << 2;
64 2 break;
65 2 case 8:
66 2 BytesPerLine = ((XSize + 3) >> 2) << 2;
67 2 break;
68 2 }
69 1 for (; (y < YSize) && (y >= 0); y += Step) {
70 2 LCD_DrawBitmap(x0, y0 + y, XSize, 1, 1, 1, Bpp, XSize, pData, LCD__aConvTable);
71 2 pData += BytesPerLine;
72 2 }
73 1 return 0;
74 1 }
75
76 static int _DrawBitmap_24bpp(const U8 * pData, int x0, int y0, int XSize, int YSize) {
77 1 int x, y, BytesPerLine, Step;
78 1 Step = _GetStep(&YSize, &y);
79 1 if (!Step) {
80 2 return 1;
81 2 }
82 1 BytesPerLine = ((24 * XSize + 31) >> 5) << 2;
83 1 for (; (y < YSize) && (y >= 0); y += Step) {
84 2 for (x = 0; x < XSize; x++) {
85 3 const U8 * pColor = pData + 3 * x;
86 3 U8 r, g, b;
87 3 b = *(pColor);
88 3 g = *(pColor + 1);
89 3 r = *(pColor + 2);
90 3 LCD_SetPixelIndex(x0 + x, y0 + y, LCD_Color2Index((b << 16) | (g << 8) | r));
91 3 }
92 2 pData += BytesPerLine;
93 2 }
94 1 return 0;
95 1 }
96
97 static U16 _Read16(U8 ** ppData) {
98 1 U8 * pData = *ppData;
99 1 U16 Value = *pData;
100 1 Value |= (U16)(*(pData + 1) << 8);
101 1 pData += 2;
102 1 *ppData = pData;
103 1 return Value;
104 1 }
105
106 static U32 _Read32(U8 ** ppData) {
107 1 U8 * pData = *ppData;
108 1 U32 Value = *pData;
109 1 Value |= (U32)(*(pData + 1) << 8);
110 1 Value |= (U32)(*(pData + 2) << 16);
111 1 Value |= (U32)(*(pData + 3) << 24);
112 1 pData += 4;
113 1 *ppData = pData;
114 1 return Value;
115 1 }
C51 COMPILER V8.05a GUI_BMP 04/11/2008 14:18:26 PAGE 3
116
117 /*********************************************************************
118 *
119 * GUI_BMP_GetXSize
120 *
121 **********************************************************************
122 */
123 int GUI_BMP_GetXSize(const void * pBMP) {
124 1 U8 * pSrc = (U8 *)pBMP;
125 1 if (!pBMP) {
126 2 return 0;
127 2 }
128 1 pSrc += 18; /* skip rest of BITMAPFILEHEADER */
129 1 return _Read32(&pSrc);
130 1 }
131
132 /*********************************************************************
133 *
134 * GUI_BMP_GetXSize
135 *
136 **********************************************************************
137 */
138 int GUI_BMP_GetYSize(const void * pBMP) {
139 1 U8 * pSrc = (U8 *)pBMP;
140 1 if (!pBMP) {
141 2 return 0;
142 2 }
143 1 pSrc += 22;
144 1 return abs(_Read32(&pSrc));
145 1 }
146
147 /*********************************************************************
148 *
149 * GUI_BMP_Draw
150 *
151 **********************************************************************
152 */
153
154 int GUI_BMP_Draw(const void * pBMP, int x0, int y0) {
155 1 #if (GUI_WINSUPPORT)
GUI_RECT r;
#endif
158 1 int Ret;
159 1 I32 Width, Height;
160 1 U16 BitCount, Type;
161 1 U32 ClrUsed, Compression;
162 1 int NumColors;
163 1 U8 * pSrc = (U8 *)pBMP;
164 1 Type = _Read16(&pSrc); /* get type from BITMAPFILEHEADER */
165 1 pSrc += 12; /* skip rest of BITMAPFILEHEADER */
166 1 /* get values from BITMAPINFOHEADER */
167 1 pSrc += 4;
168 1 Width = _Read32(&pSrc);
169 1 Height = _Read32(&pSrc);
170 1 pSrc += 2;
171 1 BitCount = _Read16(&pSrc);
172 1 Compression = _Read32(&pSrc);
173 1 pSrc += 12;
174 1 ClrUsed = _Read32(&pSrc);
175 1 pSrc += 4;
176 1 /* calculate number of colors */
177 1 switch (BitCount) {
C51 COMPILER V8.05a GUI_BMP 04/11/2008 14:18:26 PAGE 4
178 2 case 0: return 1; /* biBitCount = 0 (JPEG format) not supported. Please convert image ! */
179 2 case 1: NumColors = 2; break;
180 2 case 4: NumColors = 16; break;
181 2 case 8: NumColors = 256; break;
182 2 case 24: NumColors = 0; break;
183 2 default:
184 2 return 1; /* biBitCount should be 1, 4, 8 or 24 */
185 2 }
186 1 if (NumColors && ClrUsed) {
187 2 NumColors = ClrUsed;
188 2 }
189 1 /* check validity of bmp */
190 1 if ((NumColors > LCD_MAX_LOG_COLORS) ||
191 1 (Type != 0x4d42) || /* 'BM' */
192 1 (Compression) || /* only uncompressed bitmaps */
193 1 (Width > 1024) ||
194 1 (Height > 1024)) {
195 2 return 1;
196 2 }
197 1 /* start output */
198 1 GUI_LOCK();
199 1 #if (GUI_WINSUPPORT)
WM_ADDORG(x0,y0);
r.x1 = (r.x0 = x0) + Width - 1;
r.y1 = (r.y0 = y0) + Height - 1;
WM_ITERATE_START(&r) {
#endif
205 1 /* Show bitmap */
206 1 switch (BitCount) {
207 2 case 1:
208 2 case 4:
209 2 case 8:
210 2 Ret = _DrawBitmap_Pal(pSrc, x0, y0, Width, Height, BitCount, NumColors);
211 2 break;
212 2 case 24:
213 2 Ret = _DrawBitmap_24bpp(pSrc, x0, y0, Width, Height);
214 2 break;
215 2 }
216 1 #if (GUI_WINSUPPORT)
} WM_ITERATE_END();
#endif
219 1 GUI_UNLOCK();
220 1 return Ret;
221 1 }
222
223
224
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 2202 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- 118
PDATA SIZE = ---- ----
DATA SIZE = ---- ----
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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