diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/libc/include/ctype.h | 1 | ||||
-rw-r--r-- | lib/libc/include/unistd.h | 8 | ||||
-rw-r--r-- | lib/libc/src/hyra/socket.c | 13 | ||||
-rw-r--r-- | lib/libc/src/hyra/sysctl.c | 38 | ||||
-rw-r--r-- | lib/libc/src/main.c | 2 | ||||
-rw-r--r-- | lib/libc/src/posix/getopt.c | 100 | ||||
-rw-r--r-- | lib/libc/src/unistd/hostname.c | 125 | ||||
-rw-r--r-- | lib/libgfx/include/libgfx/draw.h | 20 | ||||
-rw-r--r-- | lib/libgfx/src/draw.c | 136 | ||||
-rw-r--r-- | lib/liboda/include/liboda/input.h | 11 | ||||
-rw-r--r-- | lib/liboda/include/liboda/oda.h | 23 | ||||
-rw-r--r-- | lib/liboda/include/liboda/types.h | 1 | ||||
-rw-r--r-- | lib/liboda/src/input.c | 27 | ||||
-rw-r--r-- | lib/liboda/src/window.c | 206 |
14 files changed, 700 insertions, 11 deletions
diff --git a/lib/libc/include/ctype.h b/lib/libc/include/ctype.h index 2348852..0ff9a43 100644 --- a/lib/libc/include/ctype.h +++ b/lib/libc/include/ctype.h @@ -72,6 +72,7 @@ __isspace(int c) return 1; return 0; + } } __END_DECLS diff --git a/lib/libc/include/unistd.h b/lib/libc/include/unistd.h index b9c9f5e..21206ad 100644 --- a/lib/libc/include/unistd.h +++ b/lib/libc/include/unistd.h @@ -47,6 +47,9 @@ __BEGIN_DECLS int sysconf(int name); int setuid(uid_t new); +int gethostname(char *name, size_t size); +int sethostname(const char *name, size_t size); + uid_t getuid(void); char *getlogin(void); @@ -60,6 +63,11 @@ off_t lseek(int fildes, off_t offset, int whence); pid_t getpid(void); pid_t getppid(void); +extern char *optarg; +extern int optind, opterr, optopt; + +int getopt(int argc, char *argv[], const char *optstring); + __END_DECLS #endif /* !_UNISTD_H */ diff --git a/lib/libc/src/hyra/socket.c b/lib/libc/src/hyra/socket.c index b3039f6..2a62541 100644 --- a/lib/libc/src/hyra/socket.c +++ b/lib/libc/src/hyra/socket.c @@ -71,3 +71,16 @@ connect(int socket, const struct sockaddr *address, socklen_t len) { return syscall(SYS_connect, socket, (uintptr_t)address, len); } + +int +setsockopt(int sockfd, int level, int name, const void *v, socklen_t len) +{ + return syscall( + SYS_setsockopt, + sockfd, + level, + name, + (uintptr_t)v, + len + ); +} diff --git a/lib/libc/src/hyra/sysctl.c b/lib/libc/src/hyra/sysctl.c new file mode 100644 index 0000000..2903e6f --- /dev/null +++ b/lib/libc/src/hyra/sysctl.c @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <sys/syscall.h> +#include <sys/sysctl.h> + +int +sysctl(struct sysctl_args *args) +{ + return syscall(SYS_sysctl, (uintptr_t)args); +} diff --git a/lib/libc/src/main.c b/lib/libc/src/main.c index 02a648b..68f9bdb 100644 --- a/lib/libc/src/main.c +++ b/lib/libc/src/main.c @@ -30,6 +30,7 @@ #include <sys/exec.h> #include <stdint.h> #include <stddef.h> +#include <unistd.h> extern int __libc_stdio_init(void); extern int __malloc_mem_init(void); @@ -51,6 +52,7 @@ __libc_entry(uint64_t *ctx) char **argv; char **envp; + optind = 1; argc = *ctx; argv = (char **)(ctx + 1); envp = (char **)(argv + argc + 1); diff --git a/lib/libc/src/posix/getopt.c b/lib/libc/src/posix/getopt.c new file mode 100644 index 0000000..d3cd530 --- /dev/null +++ b/lib/libc/src/posix/getopt.c @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/errno.h> +#include <unistd.h> +#include <stdbool.h> +#include <string.h> +#include <stdio.h> + +char *optarg; +int optind, opterr, optopt; + +int +getopt(int argc, char *argv[], const char *optstring) +{ + size_t optstr_len; + char *arg; + bool has_arg = false; + + if (argc == 0 || optstring == NULL) { + opterr = -EINVAL; + return -1; + } + + if (optind >= argc) { + return -1; + } + + arg = argv[optind]; + optstr_len = strlen(optstring); + + /* Non option argument? */ + if (arg[0] != '-') { + return -1; + } + + /* + * We will look through each possible flag/option + * in the optstring and match it against our arg. + */ + for (size_t i = 0; i < optstr_len; ++i) { + if (arg[1] != optstring[i]) { + continue; + } + + /* + * If this option has a ':' right next to it, + * it also has an argument. + */ + if (i < optstr_len - 1) { + if (optstring[i + 1] == ':') { + has_arg = true; + } + } + + break; + } + + /* + * Handle cases where the option has an argument + * with it (-opt=arg) + */ + if (has_arg && optind < argc ) { + if (arg[2] != '=') { + opterr = -EINVAL; + return -1; + } + optarg = &arg[3]; + ++optind; + } + + ++optind; + return arg[1]; +} diff --git a/lib/libc/src/unistd/hostname.c b/lib/libc/src/unistd/hostname.c new file mode 100644 index 0000000..60df9a0 --- /dev/null +++ b/lib/libc/src/unistd/hostname.c @@ -0,0 +1,125 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/sysctl.h> +#include <unistd.h> + +/* + * Internal helper to grab a sysctl + * variable. + * + * @name: Name definition of sysctl variable + * @buf: Buffer to read data in + * @buflen: Length of buffer + * + * Returns zero on success, otherwise a less than + * zero value. + */ +static int +__sysctl_get(int name, char *buf, size_t buflen) +{ + struct sysctl_args args; + int error; + + args.name = &name; + args.nlen = 1; + args.oldp = buf; + args.oldlenp = &buflen; + args.newp = NULL; + args.newlen = 0; + + if ((error = sysctl(&args)) != 0) { + return -1; + } + + return 0; +} + +/* + * Internal helper to set a sysctl + * variable. + * + * @name: Name definition of sysctl variable + * @buf: Buffer with data to set + * @buflen: Length of buffer + * + * Returns zero on success, otherwise a less than + * zero value. + */ +static int +__sysctl_set(int name, const char *buf, size_t buflen) +{ + struct sysctl_args args; + int error; + + args.name = &name; + args.nlen = 1; + args.oldp = NULL; + args.oldlenp = NULL; + args.newp = (void *)buf; + args.newlen = buflen; + + if ((error = sysctl(&args)) != 0) { + return -1; + } + + return 0; +} + +/* + * Get the system hostname + * + * @name: Buffer to read name into + * @size: Length of name to read + */ +int +gethostname(char *name, size_t size) +{ + if (name == NULL || size == 0) { + return -1; + } + + return __sysctl_get(KERN_HOSTNAME, name, size); +} + +/* + * Set the system hostname + * + * @name: Name to set + * @size: Size of name to set + */ +int +sethostname(const char *name, size_t size) +{ + if (name == NULL || size == 0) { + return -1; + } + + return __sysctl_set(KERN_HOSTNAME, name, size); +} diff --git a/lib/libgfx/include/libgfx/draw.h b/lib/libgfx/include/libgfx/draw.h index 9f56f6c..4140593 100644 --- a/lib/libgfx/include/libgfx/draw.h +++ b/lib/libgfx/include/libgfx/draw.h @@ -34,7 +34,8 @@ #include <libgfx/gfx.h> /* Shape types */ -#define SHAPE_SQUARE 0x00000000 +#define SHAPE_SQUARE 0x00000000 +#define SHAPE_SQUARE_BORDER 0x00000001 /* Basic color defines */ #define GFX_BLACK 0x000000 @@ -101,9 +102,26 @@ struct gfx_point { color_t rgb; }; +/* + * Represents a rectangular region on + * the screen. + * + * @x,y: Position of this region on the screen + * @width: Region width + * @heght: Region height + */ +struct gfx_region { + scrpos_t x, y; + dimm_t width; + dimm_t height; +}; + int gfx_draw_shape(struct gfx_ctx *ctx, const struct gfx_shape *shape); int gfx_plot_point(struct gfx_ctx *ctx, const struct gfx_point *point); +int gfx_copy_region(struct gfx_ctx *ctx, struct gfx_region *r, scrpos_t x, scrpos_t y); +color_t gfx_get_pix(struct gfx_ctx *ctx, uint32_t x, uint32_t y); + __always_inline static inline size_t gfx_io_index(struct gfx_ctx *ctx, scrpos_t x, scrpos_t y) { diff --git a/lib/libgfx/src/draw.c b/lib/libgfx/src/draw.c index 9ef8630..4df64a8 100644 --- a/lib/libgfx/src/draw.c +++ b/lib/libgfx/src/draw.c @@ -58,7 +58,7 @@ gfx_pixel_bounds(struct gfx_ctx *ctx, uint32_t x, uint32_t y) scr_width = fbdev.width; scr_height = fbdev.height; - if (x >= scr_height || y >= scr_width) { + if (x >= scr_width || y >= scr_height) { return -1; } @@ -75,6 +75,7 @@ static int gfx_draw_square(struct gfx_ctx *ctx, const struct gfx_shape *shape) { struct fbattr fbdev; + struct gfx_point p; off_t idx; scrpos_t x, y; @@ -84,14 +85,67 @@ gfx_draw_square(struct gfx_ctx *ctx, const struct gfx_shape *shape) for (x = shape->x; x < shape->x + shape->width; ++x) { for (y = shape->y; y < shape->y + shape->height; ++y) { - if (gfx_pixel_bounds(ctx, x, y) < 0) { - break; + p.x = x; + p.y = y; + p.rgb = shape->color; + gfx_plot_point(ctx, &p); + } + } + return 0; +} + +/* + * Draw a bordered square onto the screen. + * + * @ctx: Graphics context pointer + * @shape: Bordered square to draw + */ +static int +gfx_draw_bsquare(struct gfx_ctx *ctx, const struct gfx_shape *shape) +{ + struct gfx_point p; + scrpos_t x_i, y_i; + scrpos_t x_f, y_f; + scrpos_t x, y; + + if (ctx == NULL || shape == NULL) { + return -EINVAL; + } + + x_i = shape->x; + y_i = shape->y; + x_f = shape->x + shape->width; + y_f = shape->y + shape->height; + + /* + * Draw an unfilled square. + * + * If we are at the `y_i' or `y_f' position, draw + * pixels from 'x_i' to 'x_f'. If we are away + * from the `y_i' position, draw two pixels, + * one at `x_i' and the other at `x_f' for that + * current 'y' value. + */ + for (y = y_i; y < y_f; ++y) { + for (x = x_i; x < x_f; ++x) { + p.x = x; + p.y = y; + p.rgb = shape->color; + + /* Origin y, draw entire width */ + if (y == y_i || y == y_f - 1) { + gfx_plot_point(ctx, &p); + continue; } - idx = gfx_io_index(ctx, x, y); - ctx->io[idx] = shape->color; + p.x = x_i; + gfx_plot_point(ctx, &p); + + p.x = x_f - 1; + gfx_plot_point(ctx, &p); } } + return 0; } @@ -129,6 +183,34 @@ gfx_plot_point(struct gfx_ctx *ctx, const struct gfx_point *point) } /* + * Grab the RGB value of a single pixel on + * the scren. + * + * @ctx: Graphics context pointer + * @x: X position to sample + * @y: Y position to sample + */ +color_t +gfx_get_pix(struct gfx_ctx *ctx, uint32_t x, uint32_t y) +{ + const color_t ERROR_COLOR = GFX_BLACK; + uint32_t index; + + /* The 'ctx' argument is required */ + if (ctx == NULL) { + return ERROR_COLOR; + } + + /* Are we within bounds of the screen */ + if (gfx_pixel_bounds(ctx, x, y) < 0) { + return ERROR_COLOR; + } + + index = gfx_io_index(ctx, x, y); + return ctx->io[index]; +} + +/* * Draw a shape onto the screen * * @ctx: libgfx graphics context @@ -150,7 +232,51 @@ gfx_draw_shape(struct gfx_ctx *ctx, const struct gfx_shape *shape) switch (shape->type) { case SHAPE_SQUARE: return gfx_draw_square(ctx, shape); + case SHAPE_SQUARE_BORDER: + return gfx_draw_bsquare(ctx, shape); } return -1; } + +/* + * Copy a region on one part of a screen to + * another part of a screen. + * + * @ctx: Graphics context pointer + * @r: Region to copy + * @x: X position for copy dest + * @y: Y position for copy dest + */ +int +gfx_copy_region(struct gfx_ctx *ctx, struct gfx_region *r, scrpos_t x, scrpos_t y) +{ + struct gfx_point point; + color_t pixel; + scrpos_t src_cx, src_cy; + dimm_t w, h; + + if (ctx == NULL || r == NULL) { + return -EINVAL; + } + + w = r->width; + h = r->height; + + for (int xoff = 0; xoff < w; ++xoff) { + for (int yoff = 0; yoff < h; ++yoff) { + /* Source position */ + src_cx = r->x + xoff; + src_cy = r->y + yoff; + + /* Plot the new pixel */ + pixel = gfx_get_pix(ctx, src_cx, src_cy); + point.x = x + xoff; + point.y = y + yoff; + point.rgb = pixel; + gfx_plot_point(ctx, &point); + } + } + + return 0; +} diff --git a/lib/liboda/include/liboda/input.h b/lib/liboda/include/liboda/input.h index 9906329..c74a304 100644 --- a/lib/liboda/include/liboda/input.h +++ b/lib/liboda/include/liboda/input.h @@ -30,7 +30,6 @@ #ifndef LIBODA_INPUT_H #define LIBODA_INPUT_H -#include <sys/ascii.h> #include <stdint.h> #include <stddef.h> @@ -42,12 +41,22 @@ #define ODA_KEYCHAR(KEY) ((char )(KEY) & 0xFF) /* + * Key defines + */ +#define ODA_KEY_OTHER 0x0000 +#define ODA_KEY_ESCAPE 0x0001 +#define ODA_KEY_TAB 0x0002 +#define ODA_KEY_BACKSPACE 0x0003 + +/* * Represents a key press * + * @type: Key types (see ODA_KEY_*) * @scancode: Scancode * @ch: Character */ struct oda_key { + uint16_t type; uint8_t scancode; char ch; }; diff --git a/lib/liboda/include/liboda/oda.h b/lib/liboda/include/liboda/oda.h index 10738a9..9d96f2f 100644 --- a/lib/liboda/include/liboda/oda.h +++ b/lib/liboda/include/liboda/oda.h @@ -40,10 +40,12 @@ /* * ODA representation of a window. * + * @wid: Window ID (identifies the window) * @surface: Window surface descriptor * @session: Session this window belongs to */ struct oda_window { + odawid_t wid; struct gfx_shape surface; struct oda_state *session; TAILQ_ENTRY(oda_window) link; @@ -81,6 +83,22 @@ struct oda_wattr { }; /* + * Arguments for oda_movewin() are stored + * within this structure to minimize the + * number of arguments within the function + * signature. + * + * @wp: Window to be moved + * @to_x: X position to move window to + * @to_y: Y position to move window to + */ +struct oda_movewin { + struct oda_window *wp; + odapos_t to_x; + odapos_t to_y; +}; + +/* * A pixel point that can be plotted * onto a window. * @@ -99,9 +117,12 @@ struct oda_point { int oda_reqwin(struct oda_wattr *params, struct oda_window **res); int oda_termwin(struct oda_state *state, struct oda_window *win); -int oda_plotwin(struct oda_state *state, const struct oda_point *point); +int oda_plotwin(struct oda_state *state, const struct oda_point *point); +int oda_movewin(struct oda_state *state, struct oda_movewin *params); int oda_start_win(struct oda_state *state, struct oda_window *win); + int oda_init(struct oda_state *res); +int oda_shutdown(struct oda_state *state); #endif /* !LIBODA_ODA_H */ diff --git a/lib/liboda/include/liboda/types.h b/lib/liboda/include/liboda/types.h index 8b77aa7..ec12330 100644 --- a/lib/liboda/include/liboda/types.h +++ b/lib/liboda/include/liboda/types.h @@ -36,5 +36,6 @@ typedef uint32_t odapos_t; /* X/Y positions */ typedef uint32_t odapix_t; /* RGB pixel */ typedef odapix_t odacolor_t; /* RGB color */ typedef uint32_t odadimm_t; /* Dimensions */ +typedef uint32_t odawid_t; /* Window ID */ #endif /* !LIBODA_TYPE_H */ diff --git a/lib/liboda/src/input.c b/lib/liboda/src/input.c index 88c4256..797a9d4 100644 --- a/lib/liboda/src/input.c +++ b/lib/liboda/src/input.c @@ -27,13 +27,39 @@ * POSSIBILITY OF SUCH DAMAGE. */ +#include <sys/ascii.h> #include <sys/errno.h> +#include <sys/param.h> #include <liboda/oda.h> #include <liboda/input.h> #include <stdint.h> #include <stdio.h> /* + * Convert key scancode/char values to fixed + * ODA key constants + */ +static inline uint16_t +oda_map_key(const struct oda_key *key) +{ + uint16_t type = ODA_KEY_OTHER; + + switch (key->ch) { + case ASCII_ESC: + type = ODA_KEY_ESCAPE; + break; + case ASCII_HT: + type = ODA_KEY_TAB; + break; + case ASCII_BS: + type = ODA_KEY_BACKSPACE; + break; + } + + return type; +} + +/* * Dispatch keyboard events. This is typically * called in an event loop so that keyboard events * are handled per iteration. @@ -57,5 +83,6 @@ oda_kbd_dispatch(struct oda_kbd *kbd) key.scancode = ODA_SCANCODE(input); key.ch = ODA_KEYCHAR(input); + key.type = oda_map_key(&key); return kbd->handle_keyev(kbd, &key); } diff --git a/lib/liboda/src/window.c b/lib/liboda/src/window.c index 9a8b799..216b106 100644 --- a/lib/liboda/src/window.c +++ b/lib/liboda/src/window.c @@ -28,12 +28,121 @@ */ #include <sys/errno.h> +#include <sys/queue.h> #include <stdlib.h> #include <string.h> #include <liboda/oda.h> #include <liboda/odavar.h> #include <liboda/types.h> #include <libgfx/gfx.h> +#include <libgfx/draw.h> + +/* + * The window cache is used to reduce how many + * calls to malloc() and free() are made during + * window creation and destruction. + */ +static TAILQ_HEAD(, oda_window) wcache; +static uint32_t wcache_cookie = 0; +static odawid_t next_wid = 1; + +/* + * Pop a window from the window cache. + * Returns NULL there are no more windows. + */ +static struct oda_window * +oda_window_pop(void) +{ + struct oda_window *wdp; + + if (wcache_cookie != ODA_COOKIE) { + TAILQ_INIT(&wcache); + wcache_cookie = ODA_COOKIE; + return NULL; + } + + wdp = TAILQ_FIRST(&wcache); + TAILQ_REMOVE(&wcache, wdp, link); + return wdp; +} + +/* + * Place a window into the window cache. + */ +static void +oda_window_cache(struct oda_window *wdp) +{ + /* Ensure arg is valid */ + if (wdp == NULL) { + return; + } + + if (wcache_cookie != ODA_COOKIE) { + TAILQ_INIT(&wcache); + wcache_cookie = ODA_COOKIE; + } + + TAILQ_INSERT_TAIL(&wcache, wdp, link); +} + +/* + * Allocate an ODP window + * + * Returns NULL on failure + */ +static struct oda_window * +oda_window_alloc(void) +{ + struct oda_window *wdp; + + /* + * First check if there are any entries + * we can grab from the window cache. + */ + wdp = oda_window_pop(); + if (wdp != NULL) { + return wdp; + } + + /* Allocate a new window */ + wdp = malloc(sizeof(*wdp)); + if (wdp == NULL) { + return NULL; + } + + memset(wdp, 0, sizeof(*wdp)); + wdp->wid = next_wid++; + return wdp; +} + +/* + * Release a given ODA window descriptor + * + * @wdp: Window to free + */ +static void +oda_window_release(struct oda_state *state, struct oda_window *wdp) +{ + if (wdp == NULL) { + return; + } + + /* + * It is probably a good idea to ensure previous + * state other than the old window ID is reset + * and zeroed. + */ + wdp->session = NULL; + memset(&wdp->surface, 0, sizeof(wdp->surface)); + + /* + * Now we can remove this window from the list + * of windows we are tracking and add it to the + * cache. + */ + TAILQ_REMOVE(&state->winq, wdp, link); + oda_window_cache(wdp); +} /* * Check if a point is within the bounds of @@ -78,6 +187,34 @@ oda_check_point(struct oda_window *wp, struct oda_point *point) } /* + * Clean up after ourselves and release + * each entry of the wcache. + * + * Returns 0 on success. + */ +static int +oda_free_wcache(void) +{ + struct oda_window *wdp, *next; + + if (wcache_cookie != ODA_COOKIE) { + return -1; + } + + /* + * Go through each entry and call free() + * on them. + */ + wdp = TAILQ_FIRST(&wcache); + while (wdp != NULL) { + next = TAILQ_NEXT(wdp, link); + free(wdp); + wdp = next; + } + return 0; +} + +/* * Plot a pixel onto a window * * @state: ODA state pointer @@ -176,7 +313,7 @@ oda_reqwin(struct oda_wattr *params, struct oda_window **res) } /* Allocate a new window */ - wp = malloc(sizeof(*wp)); + wp = oda_window_alloc(); if (wp == NULL) { return -ENOMEM; } @@ -205,6 +342,61 @@ oda_reqwin(struct oda_wattr *params, struct oda_window **res) } /* + * Move a window to a new position on the + * screen. + * + * @state: ODA state pointer + * @params: Arguments to this function + */ +int +oda_movewin(struct oda_state *state, struct oda_movewin *params) +{ + struct oda_window *win; + struct gfx_shape *wsurf; + struct gfx_region r; + odadimm_t w, h; + odapos_t x, y, x_f, y_f; + odapos_t to_x, to_y; + uint32_t i = 0; + int error; + + /* Make sure arguments are valid */ + if (state == NULL || params == NULL) { + return -EINVAL; + } + + /* We need the window */ + if ((win = params->wp) == NULL) { + return -EINVAL; + } + + /* Verify state cookie */ + if ((error = oda_cookie_verify(state)) != 0) { + return error; + } + + wsurf = &win->surface; + to_x = params->to_x; + to_y = params->to_y; + + r.x = wsurf->x; + r.y = wsurf->y; + r.width = wsurf->width; + r.height = wsurf->height; + + /* + * We will copy the window to the new location and + * fill where the old window was with GFX_BLACK. + * + * TODO: Handle overlapping of windows + */ + gfx_copy_region(&state->gctx, &r, to_x, to_y); + wsurf->x = to_x; + wsurf->y = to_y; + return 0; +} + +/* * Register a window into the current ODA state. * Everytime a compositor requests a window, we * must keep track of it. @@ -255,7 +447,15 @@ oda_termwin(struct oda_state *state, struct oda_window *win) return error; } - TAILQ_REMOVE(&state->winq, win, link); - free(win); + oda_window_release(state, win); return 0; } + +/* + * Shutdown the ODA library + */ +int +oda_shutdown(struct oda_state *state) +{ + return oda_free_wcache(); +} |