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comparison src/cs/drivers/drv_app/r2d/lcds/ColorPC/R2D_pc_color_lcd_i.c @ 0:4e78acac3d88

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src/{condat,cs,gpf,nucleus}: import from Selenite
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 16 Oct 2020 06:23:26 +0000
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-1:000000000000 0:4e78acac3d88
1 static UINT32 r2d_lcd_copy_operator(UINT32 old,UINT32 value)
2 {
3 return(value);
4 }
5 static UINT32 r2d_lcd_or_operator(UINT32 old,UINT32 value)
6 {
7 if ((value&0x00FFFFFF)==0x0FFFFFF)
8 return(old);
9 else
10 return(value);
11 }
12 static UINT32 r2d_lcd_and_operator(UINT32 old,UINT32 value)
13 {
14 return((~(~old) & (~value)));
15 }
16 static UINT32 r2d_lcd_xor_operator(UINT32 old,UINT32 value)
17 {
18 return(~((~old) ^ (~value))) ;
19 }
20 static UINT32 r2d_lcd_not_copy_operator(UINT32 old,UINT32 value)
21 {
22 return(~value);
23 }
24 static UINT32 r2d_lcd_not_or_operator(UINT32 old,UINT32 value)
25 {
26 return(((~old) | (~value)));
27 }
28 static UINT32 r2d_lcd_not_and_operator(UINT32 old,UINT32 value)
29 {
30 return(((~old) & (~value)));
31 }
32 static UINT32 r2d_lcd_not_xor_operator(UINT32 old,UINT32 value)
33 {
34 return(((~old) ^ (~value))) ;
35 }
36
37 static UINT32 r2d_lcd_erase_operator(UINT32 old,UINT32 value)
38 {
39 if ((value&0x00FFFFFF)==0)
40 return(0xFFFFFF);
41 else
42 return(old);
43 }
44
45 static UINT32 r2d_lcd_alpha_operator(UINT32 old,UINT32 value)
46 {
47 INT16 a,rs,gs,bs,rd,gd,bd;
48
49
50
51 a=(value >> 24) & 0x0FF;
52
53
54 if (a)
55 {
56
57 bs=value&0xFF;
58
59 value=value>>8;
60 gs=value&0xFF;
61
62 value=value>>8;
63 rs=value&0xFF;
64
65 bd=old&0xFF;
66
67 old=old>>8;
68 gd=old&0xFF;
69
70 old=old>>8;
71 rd=old&0xFF;
72
73 // Pixel value has been complemented before being
74 // saved so that the white correspond to 0 and be
75 // compatible with formulas for other modes.
76 // But alpha value is not complemented
77 // So a=0xFF correspond tranparency
78 bd=((a)*bd+(0x100 - a)*bs) >> 8;
79 gd=((a)*gd+(0x100 - a)*gs) >> 8;
80 rd=((a)*rd+(0x100 - a)*rs) >> 8;
81
82
83 old=((rd << 16) | (gd << 8) | bd) & 0x00FFFFFF;
84 return(old);
85 }
86 else return(value);
87 }
88
89 const T_R2D_DRAWING_OPERATORS r2d_g_lcd_operators=
90 {
91 &r2d_lcd_copy_operator,
92 &r2d_lcd_or_operator,
93 &r2d_lcd_and_operator,
94 &r2d_lcd_xor_operator,
95 &r2d_lcd_not_copy_operator,
96 &r2d_lcd_not_or_operator,
97 &r2d_lcd_not_and_operator,
98 &r2d_lcd_not_xor_operator,
99 &r2d_lcd_alpha_operator,
100 &r2d_lcd_erase_operator
101 };
102
103
104
105
106
107
108
109
110 // Return the pixel value to write on the LCD or the offscreen
111 // pixmap
112 // (Convert Riviera color to Windows RGB Format with complement)
113 void r2d_convert_foreground_color(T_R2D_GC *gc,UINT32 color)
114 {
115 /*gc->foreground_pixel_value=r2d_alpha(color);
116 gc->foreground_pixel_value<<=24;
117
118 gc->foreground_pixel_value|=((RGB(r2d_red(color),
119 r2d_green(color),r2d_blue(color)))) & 0x00FFFFFF;*/
120
121 gc->foreground_pixel_value=color;
122 }
123
124 // Return the pixel value to write on the LCD or the offscreen
125 // pixmap
126 // (Convert ribviera color to windows RGB format with complement)
127 void r2d_convert_background_color(T_R2D_GC *gc,UINT32 color)
128 {
129 /*gc->background_pixel_value=r2d_alpha(color);
130 gc->background_pixel_value<<=24;
131
132 gc->background_pixel_value|=((RGB(r2d_red(color),
133 r2d_green(color),r2d_blue(color)))) & 0x00FFFFFF;*/
134
135 gc->background_pixel_value=color;
136 }
137
138 // Convert a LCD value (not color) to a value
139 // to be written into the 24bpp framebuffer
140 // In general, the value written is a packed
141 // representation of the ARGB color
142 // but it may be different according to the framebuffer
143 // internal format
144 BOOLEAN r2d_lcd_foreground_pixel(UINT32 lcd_value,T_R2D_GC_PTR src_gc)
145 {
146 if (lcd_value&0x0FFFFFF==0x0FFFFFF)
147 return(FALSE);
148 else
149 return(TRUE);
150 }
151
152 // Assume than color framebuffer contains ARGB packed values
153 // Convert color to LCD with on the fly dithering
154 // Riviera complemented RGB to Windows complemented one
155 // Convert from pixel_value to LCD
156 UINT32 r2d_color_to_lcd(UINT32 pixel_value,INT16 x,INT16 y)
157 {
158 return((((~pixel_value)&0x00FFFFFF)) | (pixel_value&0xFF000000));
159 }
160
161 // Windows RGB format to pixel value for 24 bpp framebuffer
162 UINT32 r2d_lcd_to_color(UINT32 color)
163 {
164
165 // INT16 r,g,b;
166 // UINT32 a;
167
168 /*a=color&0xFF000000;
169
170 color=color;
171 r=GetRValue(color);
172 g=GetGValue(color);
173 b=GetBValue(color);
174
175 return(((~((r<<16) + (g<<8)+b)) & 0x00FFFFFF) | a);*/
176 return((~(color&0xFFFFFF)) | (color&0xFF000000));
177 }
178
179