mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-04 20:55:58 +01:00
Added output rotation example
This commit is contained in:
Scott Anderson
parent
6298351d83
commit
c97de93fe1
4 changed files with 415 additions and 2 deletions
|
|
@ -233,8 +233,8 @@ static bool wlr_drm_output_set_mode(struct wlr_output_state *output,
|
|||
}
|
||||
|
||||
output->state = DRM_OUTPUT_CONNECTED;
|
||||
output->width = mode->width;
|
||||
output->height = mode->height;
|
||||
output->width = output->wlr_output->width = mode->width;
|
||||
output->height = output->wlr_output->height = mode->height;
|
||||
output->wlr_output->current_mode = mode;
|
||||
|
||||
if (!display_init_renderer(&state->renderer, output)) {
|
||||
|
|
@ -363,6 +363,7 @@ void wlr_drm_scan_connectors(struct wlr_backend_state *state) {
|
|||
output->connector = id;
|
||||
// TODO: Populate more wlr_output fields
|
||||
// TODO: Move this to wlr_output->name
|
||||
wlr_output->name = output->name;
|
||||
snprintf(output->name, sizeof(output->name), "%s-%"PRIu32,
|
||||
conn_name[conn->connector_type],
|
||||
conn->connector_type_id);
|
||||
|
|
|
|||
|
|
@ -10,3 +10,12 @@ target_link_libraries(example
|
|||
wlr-backend
|
||||
wlr-session
|
||||
)
|
||||
|
||||
add_executable(rotation
|
||||
rotation.c
|
||||
)
|
||||
|
||||
target_link_libraries(rotation
|
||||
wlr-backend
|
||||
wlr-session
|
||||
)
|
||||
|
|
|
|||
402
example/rotation.c
Normal file
402
example/rotation.c
Normal file
|
|
@ -0,0 +1,402 @@
|
|||
#define _POSIX_C_SOURCE 199309L
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <time.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <wayland-server.h>
|
||||
#include <wayland-server-protocol.h>
|
||||
#include <GLES3/gl3.h>
|
||||
#include <wlr/backend.h>
|
||||
#include <wlr/session.h>
|
||||
#include <wlr/types.h>
|
||||
#include <tgmath.h>
|
||||
|
||||
static const GLchar vert_src[] =
|
||||
"#version 310 es\n"
|
||||
"precision mediump float;\n"
|
||||
"layout(location = 0) uniform mat2 transform;\n"
|
||||
"layout(location = 0) in vec2 pos;\n"
|
||||
"layout(location = 1) in float angle;\n"
|
||||
"out float v_angle;\n"
|
||||
"void main() {\n"
|
||||
" v_angle = angle;\n"
|
||||
" gl_Position = vec4(transform * pos, 0.0, 1.0);\n"
|
||||
"}\n";
|
||||
|
||||
static const GLchar frag_src[] =
|
||||
"#version 310 es\n"
|
||||
"precision mediump float;\n"
|
||||
"in float v_angle;\n"
|
||||
"out vec4 f_color;\n"
|
||||
"void main() {\n"
|
||||
" f_color = vec4(\n"
|
||||
" cos(v_angle) / 2.0 + 0.5,\n"
|
||||
" cos(v_angle + 2.0944) / 2.0 + 0.5,\n"
|
||||
" cos(v_angle + 4.18879) / 2.0 + 0.5,\n"
|
||||
" 1.0);\n"
|
||||
"}\n";
|
||||
|
||||
static const GLfloat transforms[][4] = {
|
||||
[WL_OUTPUT_TRANSFORM_NORMAL] = {
|
||||
1.0f, 0.0f,
|
||||
0.0f, 1.0f,
|
||||
},
|
||||
[WL_OUTPUT_TRANSFORM_90] = {
|
||||
0.0f, -1.0f,
|
||||
1.0f, 0.0f,
|
||||
},
|
||||
[WL_OUTPUT_TRANSFORM_180] = {
|
||||
-1.0f, 0.0f,
|
||||
0.0f, -1.0f,
|
||||
},
|
||||
[WL_OUTPUT_TRANSFORM_270] = {
|
||||
0.0f, 1.0f,
|
||||
-1.0f, 0.0f,
|
||||
},
|
||||
[WL_OUTPUT_TRANSFORM_FLIPPED] = {
|
||||
-1.0f, 0.0f,
|
||||
0.0f, 1.0f,
|
||||
},
|
||||
[WL_OUTPUT_TRANSFORM_FLIPPED_90] = {
|
||||
0.0f, 1.0f,
|
||||
1.0f, 0.0f,
|
||||
},
|
||||
[WL_OUTPUT_TRANSFORM_FLIPPED_180] = {
|
||||
1.0f, 0.0f,
|
||||
0.0f, -1.0f,
|
||||
},
|
||||
[WL_OUTPUT_TRANSFORM_FLIPPED_270] = {
|
||||
0.0f, -1.0f,
|
||||
-1.0f, 0.0f,
|
||||
},
|
||||
};
|
||||
|
||||
struct state {
|
||||
float angle;
|
||||
struct timespec last_frame;
|
||||
struct wl_listener output_add;
|
||||
struct wl_listener output_remove;
|
||||
struct wl_list outputs;
|
||||
struct wl_list config;
|
||||
|
||||
struct gl {
|
||||
GLuint prog;
|
||||
GLuint vao;
|
||||
GLuint vbo;
|
||||
} gl;
|
||||
};
|
||||
|
||||
struct output_state {
|
||||
struct wl_list link;
|
||||
struct wlr_output *output;
|
||||
struct state *state;
|
||||
struct wl_listener frame;
|
||||
enum wl_output_transform transform;
|
||||
};
|
||||
|
||||
struct output_config {
|
||||
char *name;
|
||||
enum wl_output_transform transform;
|
||||
|
||||
struct wl_list link;
|
||||
};
|
||||
|
||||
static GLuint create_shader(GLenum type, const GLchar *src, GLint len) {
|
||||
GLuint shader = glCreateShader(type);
|
||||
glShaderSource(shader, 1, &src, &len);
|
||||
glCompileShader(shader);
|
||||
|
||||
GLint success;
|
||||
glGetShaderiv(shader, GL_COMPILE_STATUS, &success);
|
||||
|
||||
if (success == GL_FALSE) {
|
||||
GLint loglen;
|
||||
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &loglen);
|
||||
|
||||
GLchar msg[loglen];
|
||||
glGetShaderInfoLog(shader, loglen, &loglen, msg);
|
||||
|
||||
fprintf(stderr, "Failed to create shader: %s\n", msg);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
return shader;
|
||||
}
|
||||
|
||||
static void init_gl(struct gl *gl) {
|
||||
GLuint vert = create_shader(GL_VERTEX_SHADER, vert_src, strlen(vert_src));
|
||||
GLuint frag = create_shader(GL_FRAGMENT_SHADER, frag_src, strlen(frag_src));
|
||||
|
||||
gl->prog = glCreateProgram();
|
||||
glAttachShader(gl->prog, vert);
|
||||
glAttachShader(gl->prog, frag);
|
||||
glLinkProgram(gl->prog);
|
||||
|
||||
GLint success;
|
||||
glGetProgramiv(gl->prog, GL_LINK_STATUS, &success);
|
||||
|
||||
if (success == GL_FALSE) {
|
||||
GLint len;
|
||||
glGetProgramiv(gl->prog, GL_INFO_LOG_LENGTH, &len);
|
||||
|
||||
GLchar msg[len];
|
||||
glGetProgramInfoLog(gl->prog, len, &len, msg);
|
||||
|
||||
fprintf(stderr, "Failed to link program: %s\n", msg);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
glDeleteProgram(vert);
|
||||
glDeleteProgram(frag);
|
||||
|
||||
glGenVertexArrays(1, &gl->vao);
|
||||
glGenBuffers(1, &gl->vbo);
|
||||
|
||||
glBindVertexArray(gl->vao);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, gl->vbo);
|
||||
|
||||
glEnableVertexAttribArray(0);
|
||||
glEnableVertexAttribArray(1);
|
||||
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (void *)0);
|
||||
glVertexAttribPointer(1, 1, GL_FLOAT, GL_FALSE, 3 * sizeof(GLfloat), (void *)(2 * sizeof(GLfloat)));
|
||||
}
|
||||
|
||||
static void cleanup_gl(struct gl *gl) {
|
||||
glDeleteProgram(gl->prog);
|
||||
glDeleteVertexArrays(1, &gl->vao);
|
||||
glDeleteBuffers(1, &gl->vbo);
|
||||
}
|
||||
|
||||
void output_frame(struct wl_listener *listener, void *data) {
|
||||
struct output_state *ostate = wl_container_of(listener, ostate, frame);
|
||||
struct state *s = ostate->state;
|
||||
|
||||
float width = ostate->output->width;
|
||||
float height = ostate->output->height;
|
||||
glViewport(0, 0, width, height);
|
||||
|
||||
// All of the odd numbered transformations involve a 90 or 270 degree rotation
|
||||
if (ostate->transform % 2 == 1) {
|
||||
float tmp = width;
|
||||
width = height;
|
||||
height = tmp;
|
||||
}
|
||||
|
||||
// Single pixel in gl coordinates
|
||||
float px_w = 2.0f / width;
|
||||
float px_h = 2.0f / height;
|
||||
|
||||
GLfloat vert_data[] = {
|
||||
-250 * px_w, -250 * px_h, s->angle,
|
||||
0 * px_w, +250 * px_h, s->angle + 2.0944f, // 120 deg
|
||||
+250 * px_w, -250 * px_h, s->angle + 4.18879f, // 240 deg
|
||||
};
|
||||
|
||||
glUseProgram(s->gl.prog);
|
||||
|
||||
glBindVertexArray(s->gl.vao);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, s->gl.vbo);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(vert_data), vert_data, GL_STATIC_DRAW);
|
||||
|
||||
glUniformMatrix2fv(0, 1, GL_FALSE, transforms[ostate->transform]);
|
||||
|
||||
glClearColor(0.0, 0.0, 0.0, 1.0);
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
|
||||
glDrawArrays(GL_TRIANGLE_STRIP, 0, 3);
|
||||
|
||||
struct timespec now;
|
||||
clock_gettime(CLOCK_MONOTONIC, &now);
|
||||
|
||||
long ms = (now.tv_sec - s->last_frame.tv_sec) * 1000 +
|
||||
(now.tv_nsec - s->last_frame.tv_nsec) / 1000000;
|
||||
|
||||
s->last_frame = now;
|
||||
s->angle += ms / 200.0f;
|
||||
if (s->angle > 6.28318530718f) { // 2 pi
|
||||
s->angle = 0.0f;
|
||||
}
|
||||
}
|
||||
|
||||
static void output_add(struct wl_listener *listener, void *data) {
|
||||
struct wlr_output *output = data;
|
||||
struct state *state = wl_container_of(listener, state, output_add);
|
||||
|
||||
fprintf(stderr, "Output '%s' added\n", output->name);
|
||||
wlr_output_set_mode(output, output->modes->items[0]);
|
||||
|
||||
struct output_state *ostate = calloc(1, sizeof(struct output_state));
|
||||
|
||||
ostate->output = output;
|
||||
ostate->state = state;
|
||||
ostate->frame.notify = output_frame;
|
||||
ostate->transform = WL_OUTPUT_TRANSFORM_NORMAL;
|
||||
|
||||
struct output_config *conf;
|
||||
wl_list_for_each(conf, &state->config, link) {
|
||||
if (strcmp(conf->name, output->name) == 0) {
|
||||
ostate->transform = conf->transform;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
wl_list_init(&ostate->frame.link);
|
||||
wl_signal_add(&output->events.frame, &ostate->frame);
|
||||
wl_list_insert(&state->outputs, &ostate->link);
|
||||
}
|
||||
|
||||
static void output_remove(struct wl_listener *listener, void *data) {
|
||||
struct wlr_output *output = data;
|
||||
struct state *state = wl_container_of(listener, state, output_remove);
|
||||
struct output_state *ostate;
|
||||
|
||||
wl_list_for_each(ostate, &state->outputs, link) {
|
||||
if (ostate->output == output) {
|
||||
wl_list_remove(&ostate->link);
|
||||
wl_list_remove(&ostate->frame.link);
|
||||
free(ostate);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int timer_done(void *data) {
|
||||
*(bool *)data = true;
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void usage(const char *name, int ret) {
|
||||
fprintf(stderr,
|
||||
"usage: %s [-d <name> [-r <rotation> | -f]]*\n"
|
||||
"\n"
|
||||
" -d <display> 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"
|
||||
" -f Flip the output along the vertical axis.\n", name);
|
||||
|
||||
exit(ret);
|
||||
}
|
||||
|
||||
static void parse_args(int argc, char *argv[], struct wl_list *config) {
|
||||
struct output_config *oc = NULL;
|
||||
|
||||
int c;
|
||||
while ((c = getopt(argc, argv, "o:r:fh")) != -1) {
|
||||
switch (c) {
|
||||
case 'o':
|
||||
oc = calloc(1, sizeof(*oc));
|
||||
oc->name = optarg;
|
||||
oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
|
||||
wl_list_insert(config, &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 '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');
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]) {
|
||||
if (getenv("DISPLAY")) {
|
||||
fprintf(stderr, "Detected that X is running. Run this in its own virtual terminal.\n");
|
||||
return 1;
|
||||
} else if (getenv("WAYLAND_DISPLAY")) {
|
||||
fprintf(stderr, "Detected that Wayland is running. Run this in its own virtual terminal.\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
struct state state = {
|
||||
.angle = 0.0,
|
||||
.output_add = { .notify = output_add },
|
||||
.output_remove = { .notify = output_remove }
|
||||
};
|
||||
|
||||
wl_list_init(&state.outputs);
|
||||
wl_list_init(&state.config);
|
||||
wl_list_init(&state.output_add.link);
|
||||
wl_list_init(&state.output_remove.link);
|
||||
clock_gettime(CLOCK_MONOTONIC, &state.last_frame);
|
||||
|
||||
parse_args(argc, argv, &state.config);
|
||||
|
||||
struct wl_display *display = wl_display_create();
|
||||
struct wl_event_loop *event_loop = wl_display_get_event_loop(display);
|
||||
|
||||
struct wlr_session *session = wlr_session_start(display);
|
||||
if (!session) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
struct wlr_backend *wlr = wlr_backend_autocreate(display, session);
|
||||
if (!wlr) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
wl_signal_add(&wlr->events.output_add, &state.output_add);
|
||||
wl_signal_add(&wlr->events.output_remove, &state.output_remove);
|
||||
|
||||
if (!wlr_backend_init(wlr)) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
init_gl(&state.gl);
|
||||
|
||||
bool done = false;
|
||||
struct wl_event_source *timer = wl_event_loop_add_timer(event_loop,
|
||||
timer_done, &done);
|
||||
|
||||
wl_event_source_timer_update(timer, 10000);
|
||||
|
||||
while (!done) {
|
||||
wl_event_loop_dispatch(event_loop, 0);
|
||||
}
|
||||
|
||||
cleanup_gl(&state.gl);
|
||||
|
||||
wl_event_source_remove(timer);
|
||||
wlr_backend_destroy(wlr);
|
||||
wlr_session_finish(session);
|
||||
wl_display_destroy(display);
|
||||
|
||||
struct output_config *ptr, *tmp;
|
||||
wl_list_for_each_safe(ptr, tmp, &state.config, link) {
|
||||
free(ptr);
|
||||
}
|
||||
}
|
||||
|
|
@ -27,6 +27,7 @@ struct wlr_output {
|
|||
char *model;
|
||||
uint32_t scale;
|
||||
int32_t x, y;
|
||||
int32_t width, height;
|
||||
int32_t phys_width, phys_height; // mm
|
||||
int32_t subpixel; // enum wl_output_subpixel
|
||||
int32_t transform; // enum wl_output_transform
|
||||
|
|
|
|||
Loading…
Reference in a new issue