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
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
#include <drivers/uart.h>
#include <globals.h>
#include <graphics/glyphs.h>
#include <graphics/lfb.h>
#include <graphics/mbox.h>
#include <lib/strings.h>
unsigned char *lfb; /* raw frame buffer address */
#define SCR_WIDTH 1920
#define SCR_HEIGHT 1080
/**
* Set screen resolution to 1024x768
*/
void lfb_init(void)
{
mbox[0] = 35*4;
mbox[1] = MBOX_REQUEST;
mbox[2] = 0x48003; //set phy wh
mbox[3] = 8;
mbox[4] = 8;
mbox[5] = SCR_WIDTH; //FrameBufferInfo.width
mbox[6] = SCR_HEIGHT; //FrameBufferInfo.height
mbox[7] = 0x48004; //set virt wh
mbox[8] = 8;
mbox[9] = 8;
mbox[10] = SCR_WIDTH; //FrameBufferInfo.virtual_width
mbox[11] = SCR_HEIGHT; //FrameBufferInfo.virtual_height
mbox[12] = 0x48009; //set virt offset
mbox[13] = 8;
mbox[14] = 8;
mbox[15] = 0; //FrameBufferInfo.x_offset
mbox[16] = 0; //FrameBufferInfo.y.offset
mbox[17] = 0x48005; //set depth
mbox[18] = 4;
mbox[19] = 4;
mbox[20] = 32; //FrameBufferInfo.depth
mbox[21] = 0x48006; //set pixel order
mbox[22] = 4;
mbox[23] = 4;
mbox[24] = 1; //RGB, not BGR preferably
mbox[25] = 0x40001; //get framebuffer, gets alignment on request
mbox[26] = 8;
mbox[27] = 8;
mbox[28] = 4096; //FrameBufferInfo.pointer
mbox[29] = 0; //FrameBufferInfo.size
mbox[30] = 0x40008; //get pitch
mbox[31] = 4;
mbox[32] = 4;
mbox[33] = 0; //FrameBufferInfo.pitch
mbox[34] = MBOX_TAG_LAST;
//this might not return exactly what we asked for, could be
//the closest supported resolution instead
if(mbox_call(MBOX_CH_PROP) && mbox[20]==32 && mbox[28]!=0) {
mbox[28]&=0x3FFFFFFF; //convert GPU address to ARM address
gwidth=mbox[5]; //get actual physical width
gheight=mbox[6]; //get actual physical height
gpitch=mbox[33]; //get number of bytes per line
gisrgb=mbox[24]; //get the actual channel order
lfb=(void*)((unsigned long)mbox[28]);
} else {
uart_string("Unable to set screen resolution to 1024x768x32\n");
}
}
void clear_screen(void)
{
unsigned char *ptr=lfb;
for(unsigned int y = 0; y < gheight; y++) {
for(unsigned int x = 0; x < gwidth; x++) {
*(unsigned int*)ptr = 0x000000;
ptr += 4;
}
}
}
/**
* Show a picture
*/
void lfb_showpicture(void)
{
clear_screen();
#define FWIDTH 240
#define FHEIGHT 80
draw_cbox(SCR_WIDTH-FWIDTH, SCR_HEIGHT-FHEIGHT*2, FWIDTH, FHEIGHT, 0x0057b7);
draw_cbox(SCR_WIDTH-FWIDTH, SCR_HEIGHT-FHEIGHT, FWIDTH, FHEIGHT, 0xffd700);
}
void draw_cpixel(unsigned long lx, unsigned long ly, unsigned int c)
{
unsigned char* ptr = lfb;
ptr += (gpitch*ly+lx*4);
*((unsigned int*)ptr) = gisrgb ? (unsigned int)((c&0xFF)<<16 | (c&0xFF00) | (c&0xFF0000)>>16) : c;
}
void draw_cbox(unsigned long lx, unsigned long ly, unsigned int dx, unsigned int dy, unsigned int c)
{
unsigned char* ptr = lfb;
ptr += (gpitch*ly+lx*4);
for(unsigned int y = 0; y < dy; y++) {
for(unsigned int x = 0; x < dx; x++) {
*((unsigned int*)ptr) = gisrgb ? (unsigned int)((c&0xFF)<<16 | (c&0xFF00) | (c&0xFF0000)>>16) : c;
ptr += 4;
}
ptr += gpitch - dx*4;
}
}
void draw_cbyte(unsigned char lx, unsigned char ly, unsigned char letter, unsigned int c)
{
unsigned int x, y;
unsigned char* ptr = lfb;
ptr += (gpitch*ly*GLYPH_Y+lx*4*GLYPH_X);
unsigned char ltr = (letter & 0xF) + 0x30;
if (ltr > 0x39) {
ltr += 7;
}
for(y=0; y<GLYPH_Y; y++) {
for(x=0; x<GLYPH_X; x++) {
if((0x80 >> ((GLYPH_X-1)-x)) & glyphs[y+GLYPH_Y*(ltr)]) {
*((unsigned int*)ptr) = gisrgb ? (unsigned int)((c&0xFF)<<16 | (c&0xFF00) | (c&0xFF0000)>>16) : c;
} else {
*((unsigned int*)ptr) = 0x000000;
}
ptr += 4;
}
ptr += gpitch - GLYPH_X*4;
}
}
void draw_byte(unsigned char lx, unsigned char ly, unsigned char letter)
{
draw_cbyte(lx, ly, letter, 0xFFFFFF);
}
void draw_cletter(unsigned char lx, unsigned char ly, unsigned char letter, unsigned int c)
{
unsigned int x, y;
unsigned char* ptr = lfb;
ptr += (gpitch*ly*GLYPH_Y+lx*4*GLYPH_X);
unsigned char ltr = letter & 0x7F;
for(y=0; y<GLYPH_Y; y++) {
for(x=0; x<GLYPH_X; x++) {
if((0x80 >> ((GLYPH_X-1)-x)) & glyphs[y+GLYPH_Y*(ltr)]) {
*((unsigned int*)ptr) = gisrgb ? (unsigned int)((c&0xFF)<<16 | (c&0xFF00) | (c&0xFF0000)>>16) : c;
} else {
*((unsigned int*)ptr) = 0x000000;
}
ptr += 4;
}
ptr += gpitch - GLYPH_X*4;
}
}
void draw_letter(unsigned char lx, unsigned char ly, unsigned char letter)
{
draw_cletter(lx, ly, letter, 0xFFFFFF);
}
void draw_cstring(unsigned int lx, unsigned int ly, char* s, unsigned int c)
{
unsigned int x = lx % GG_MAX_X, y = ly % GG_MAX_Y;
unsigned int idx = 0;
while(s[idx] != 0) {
draw_cletter(x++, y, s[idx++], c);
if (x > GG_MAX_X) {
y += 1;
x = 0;
}
// CHECK Y EVENTUALLY
}
}
void draw_string(unsigned int lx, unsigned int ly, char* s)
{
draw_cstring(lx, ly, s, 0xFFFFFF);
}
void draw_chex32(unsigned int lx, unsigned int ly, unsigned long val, unsigned int c)
{
unsigned int x = lx % GG_MAX_X, y = ly % GG_MAX_Y;
for(unsigned int i = 0; i < GLYPH_X; i++) {
draw_cbyte(x++, y, 0xF & (val >> ((GLYPH_X-1)-i)*4), c);
if (x > GG_MAX_X) {
y += 1;
x = 0;
}
// CHECK Y EVENTUALLY
}
}
void draw_hex32(unsigned int lx, unsigned int ly, unsigned long val)
{
draw_chex32(lx, ly, val, 0xFFFFFF);
}
unsigned long draw_cu10(unsigned int lx, unsigned int ly, unsigned long val, unsigned int c)
{
string_t vals = u32_to_str(val);
unsigned long len = strlen(vals);
draw_cstring(lx, ly, vals, c);
return len;
}
unsigned long draw_u10(unsigned int lx, unsigned int ly, unsigned long val)
{
return draw_cu10(lx, ly, val, 0xFFFFFF);
}
|
