Merge remote-tracking branch 'origin/master' into staging
[qemu-kvm.git] / cursor.c
blob76e262caf7b986e5aedb6e26a4886e2aca3d0797
1 #include "qemu-common.h"
2 #include "console.h"
4 #include "cursor_hidden.xpm"
5 #include "cursor_left_ptr.xpm"
7 /* for creating built-in cursors */
8 static QEMUCursor *cursor_parse_xpm(const char *xpm[])
10 QEMUCursor *c;
11 uint32_t ctab[128];
12 unsigned int width, height, colors, chars;
13 unsigned int line = 0, i, r, g, b, x, y, pixel;
14 char name[16];
15 uint8_t idx;
17 /* parse header line: width, height, #colors, #chars */
18 if (sscanf(xpm[line], "%u %u %u %u",
19 &width, &height, &colors, &chars) != 4) {
20 fprintf(stderr, "%s: header parse error: \"%s\"\n",
21 __FUNCTION__, xpm[line]);
22 return NULL;
24 if (chars != 1) {
25 fprintf(stderr, "%s: chars != 1 not supported\n", __FUNCTION__);
26 return NULL;
28 line++;
30 /* parse color table */
31 for (i = 0; i < colors; i++, line++) {
32 if (sscanf(xpm[line], "%c c %15s", &idx, name) == 2) {
33 if (sscanf(name, "#%02x%02x%02x", &r, &g, &b) == 3) {
34 ctab[idx] = (0xff << 24) | (b << 16) | (g << 8) | r;
35 continue;
37 if (strcmp(name, "None") == 0) {
38 ctab[idx] = 0x00000000;
39 continue;
42 fprintf(stderr, "%s: color parse error: \"%s\"\n",
43 __FUNCTION__, xpm[line]);
44 return NULL;
47 /* parse pixel data */
48 c = cursor_alloc(width, height);
49 for (pixel = 0, y = 0; y < height; y++, line++) {
50 for (x = 0; x < height; x++, pixel++) {
51 idx = xpm[line][x];
52 c->data[pixel] = ctab[idx];
55 return c;
58 /* nice for debugging */
59 void cursor_print_ascii_art(QEMUCursor *c, const char *prefix)
61 uint32_t *data = c->data;
62 int x,y;
64 for (y = 0; y < c->height; y++) {
65 fprintf(stderr, "%s: %2d: |", prefix, y);
66 for (x = 0; x < c->width; x++, data++) {
67 if ((*data & 0xff000000) != 0xff000000) {
68 fprintf(stderr, " "); /* transparent */
69 } else if ((*data & 0x00ffffff) == 0x00ffffff) {
70 fprintf(stderr, "."); /* white */
71 } else if ((*data & 0x00ffffff) == 0x00000000) {
72 fprintf(stderr, "X"); /* black */
73 } else {
74 fprintf(stderr, "o"); /* other */
77 fprintf(stderr, "|\n");
81 QEMUCursor *cursor_builtin_hidden(void)
83 QEMUCursor *c;
85 c = cursor_parse_xpm(cursor_hidden_xpm);
86 return c;
89 QEMUCursor *cursor_builtin_left_ptr(void)
91 QEMUCursor *c;
93 c = cursor_parse_xpm(cursor_left_ptr_xpm);
94 return c;
97 QEMUCursor *cursor_alloc(int width, int height)
99 QEMUCursor *c;
100 int datasize = width * height * sizeof(uint32_t);
102 c = g_malloc0(sizeof(QEMUCursor) + datasize);
103 c->width = width;
104 c->height = height;
105 c->refcount = 1;
106 return c;
109 void cursor_get(QEMUCursor *c)
111 c->refcount++;
114 void cursor_put(QEMUCursor *c)
116 if (c == NULL)
117 return;
118 c->refcount--;
119 if (c->refcount)
120 return;
121 g_free(c);
124 int cursor_get_mono_bpl(QEMUCursor *c)
126 return (c->width + 7) / 8;
129 void cursor_set_mono(QEMUCursor *c,
130 uint32_t foreground, uint32_t background, uint8_t *image,
131 int transparent, uint8_t *mask)
133 uint32_t *data = c->data;
134 uint8_t bit;
135 int x,y,bpl;
137 bpl = cursor_get_mono_bpl(c);
138 for (y = 0; y < c->height; y++) {
139 bit = 0x80;
140 for (x = 0; x < c->width; x++, data++) {
141 if (transparent && mask[x/8] & bit) {
142 *data = 0x00000000;
143 } else if (!transparent && !(mask[x/8] & bit)) {
144 *data = 0x00000000;
145 } else if (image[x/8] & bit) {
146 *data = 0xff000000 | foreground;
147 } else {
148 *data = 0xff000000 | background;
150 bit >>= 1;
151 if (bit == 0) {
152 bit = 0x80;
155 mask += bpl;
156 image += bpl;
160 void cursor_get_mono_image(QEMUCursor *c, int foreground, uint8_t *image)
162 uint32_t *data = c->data;
163 uint8_t bit;
164 int x,y,bpl;
166 bpl = cursor_get_mono_bpl(c);
167 memset(image, 0, bpl * c->height);
168 for (y = 0; y < c->height; y++) {
169 bit = 0x80;
170 for (x = 0; x < c->width; x++, data++) {
171 if (((*data & 0xff000000) == 0xff000000) &&
172 ((*data & 0x00ffffff) == foreground)) {
173 image[x/8] |= bit;
175 bit >>= 1;
176 if (bit == 0) {
177 bit = 0x80;
180 image += bpl;
184 void cursor_get_mono_mask(QEMUCursor *c, int transparent, uint8_t *mask)
186 uint32_t *data = c->data;
187 uint8_t bit;
188 int x,y,bpl;
190 bpl = cursor_get_mono_bpl(c);
191 memset(mask, 0, bpl * c->height);
192 for (y = 0; y < c->height; y++) {
193 bit = 0x80;
194 for (x = 0; x < c->width; x++, data++) {
195 if ((*data & 0xff000000) != 0xff000000) {
196 if (transparent != 0) {
197 mask[x/8] |= bit;
199 } else {
200 if (transparent == 0) {
201 mask[x/8] |= bit;
204 bit >>= 1;
205 if (bit == 0) {
206 bit = 0x80;
209 mask += bpl;