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Diffstat (limited to 'examples/shared.c')
| -rw-r--r-- | examples/shared.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/examples/shared.c b/examples/shared.c index 5ebb7aa6..255652c7 100644 --- a/examples/shared.c +++ b/examples/shared.c @@ -5,16 +5,159 @@ #include <stdlib.h> #include <stdio.h> #include <stdbool.h> +#include <unistd.h> +#include <limits.h> #include <xkbcommon/xkbcommon.h> #include <wayland-server-protocol.h> #include <wlr/backend.h> #include <wlr/backend/session.h> #include <wlr/backend/multi.h> #include <wlr/types/wlr_output.h> +#include <wlr/types/wlr_output_layout.h> #include <wlr/types/wlr_input_device.h> #include <wlr/util/log.h> #include "shared.h" +static void usage(const char *name, int ret) { + fprintf(stderr, + "usage: %s [-d <name> [-r <rotation> | -f]]*\n" + "\n" + " -o <output> The name of the DRM display. e.g. DVI-I-1.\n" + " -r <rotation> The rotation counter clockwise. Valid values are 90, 180, 270.\n" + " -x <position> The X-axis coordinate position of this output in the layout.\n" + " -y <position> The Y-axis coordinate position of this output in the layout.\n" + " -f Flip the output along the vertical axis.\n", name); + + exit(ret); +} + +struct example_config *parse_args(int argc, char *argv[]) { + struct example_config *config = calloc(1, sizeof(struct example_config)); + wl_list_init(&config->outputs); + struct output_config *oc = NULL; + + int c; + while ((c = getopt(argc, argv, "o:r:x:y:fh")) != -1) { + switch (c) { + case 'o': + oc = calloc(1, sizeof(*oc)); + oc->name = optarg; + oc->transform = WL_OUTPUT_TRANSFORM_NORMAL; + wl_list_insert(&config->outputs, &oc->link); + break; + case 'r': + if (!oc) { + fprintf(stderr, "You must specify an output first\n"); + usage(argv[0], 1); + } + + if (oc->transform != WL_OUTPUT_TRANSFORM_NORMAL + && oc->transform != WL_OUTPUT_TRANSFORM_FLIPPED) { + fprintf(stderr, "Rotation for %s already specified\n", oc->name); + usage(argv[0], 1); + } + + if (strcmp(optarg, "90") == 0) { + oc->transform += WL_OUTPUT_TRANSFORM_90; + } else if (strcmp(optarg, "180") == 0) { + oc->transform += WL_OUTPUT_TRANSFORM_180; + } else if (strcmp(optarg, "270") == 0) { + oc->transform += WL_OUTPUT_TRANSFORM_270; + } else { + fprintf(stderr, "Invalid rotation '%s'\n", optarg); + usage(argv[0], 1); + } + break; + case 'x': + if (!oc) { + fprintf(stderr, "You must specify an output first\n"); + usage(argv[0], 1); + } + oc->x = strtol(optarg, NULL, 0); + break; + case 'y': + if (!oc) { + fprintf(stderr, "You must specify an output first\n"); + usage(argv[0], 1); + } + oc->y = strtol(optarg, NULL, 0); + break; + case 'f': + if (!oc) { + fprintf(stderr, "You must specify an output first\n"); + usage(argv[0], 1); + } + + if (oc->transform >= WL_OUTPUT_TRANSFORM_FLIPPED) { + fprintf(stderr, "Flip for %s already specified\n", oc->name); + usage(argv[0], 1); + } + + oc->transform += WL_OUTPUT_TRANSFORM_FLIPPED; + break; + case 'h': + case '?': + usage(argv[0], c != 'h'); + } + } + + return config; +} + +void example_config_destroy(struct example_config *config) { + struct output_config *oc, *tmp = NULL; + wl_list_for_each_safe(oc, tmp, &config->outputs, link) { + free(oc); + } + free(config); +} + +struct wlr_output_layout *configure_layout(struct example_config *config, struct wl_list *outputs) { + struct wlr_output_layout *layout = wlr_output_layout_init(); + int max_x = INT_MIN; + int max_x_y = INT_MIN; // y value for the max_x output + + // first add all the configured outputs + struct output_state *output; + wl_list_for_each(output, outputs, link) { + struct output_config *conf; + wl_list_for_each(conf, &config->outputs, link) { + if (strcmp(conf->name, output->output->name) == 0) { + wlr_output_layout_add(layout, output->output, + conf->x, conf->y); + wlr_output_transform(output->output, conf->transform); + int width, height; + wlr_output_effective_resolution(output->output, &width, &height); + if (conf->x + width > max_x) { + max_x = conf->x + width; + max_x_y = conf->y; + } + break; + } + } + } + + if (max_x == INT_MIN) { + // couldn't find a configured output + max_x = 0; + max_x_y = 0; + } + + // now add all the other configured outputs in a sensible position + wl_list_for_each(output, outputs, link) { + if (wlr_output_layout_get(layout, output->output)) { + continue; + } + wlr_output_layout_add(layout, output->output, max_x, max_x_y); + int width, height; + wlr_output_effective_resolution(output->output, &width, &height); + max_x += width; + } + + return layout; +} + + static void keyboard_led_update(struct keyboard_state *kbstate) { uint32_t leds = 0; for (uint32_t i = 0; i < WLR_LED_LAST; ++i) { |