You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
103 lines
2.5 KiB
103 lines
2.5 KiB
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <tgmath.h>
|
|
#include <wayland-server.h>
|
|
#include <wlr/types.h>
|
|
#include <wlr/common/list.h>
|
|
#include "types.h"
|
|
|
|
static const float 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,
|
|
},
|
|
};
|
|
|
|
// Equivilent to glOrtho(0, width, 0, height, 1, -1) with the transform applied
|
|
static void set_matrix(float mat[static 16], int32_t width, int32_t height,
|
|
enum wl_output_transform transform) {
|
|
memset(mat, 0, sizeof(*mat) * 16);
|
|
|
|
const float *t = transforms[transform];
|
|
float x = 2.0f / width;
|
|
float y = 2.0f / height;
|
|
|
|
// Rotation + relection
|
|
mat[0] = x * t[0];
|
|
mat[1] = x * t[1];
|
|
mat[4] = y * t[2];
|
|
mat[5] = y * t[3];
|
|
|
|
// Translation
|
|
mat[3] = -copysign(1.0f, mat[0] + mat[1]);
|
|
mat[7] = -copysign(1.0f, mat[4] + mat[5]);
|
|
|
|
// Identity
|
|
mat[10] = 1.0f;
|
|
mat[15] = 1.0f;
|
|
}
|
|
|
|
struct wlr_output *wlr_output_create(struct wlr_output_impl *impl,
|
|
struct wlr_output_state *state) {
|
|
struct wlr_output *output = calloc(1, sizeof(struct wlr_output));
|
|
output->impl = impl;
|
|
output->state = state;
|
|
output->modes = list_create();
|
|
output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
|
|
wl_signal_init(&output->events.frame);
|
|
return output;
|
|
}
|
|
|
|
void wlr_output_enable(struct wlr_output *output, bool enable) {
|
|
output->impl->enable(output->state, enable);
|
|
}
|
|
|
|
bool wlr_output_set_mode(struct wlr_output *output, struct wlr_output_mode *mode) {
|
|
set_matrix(output->transform_matrix, mode->width, mode->height, output->transform);
|
|
return output->impl->set_mode(output->state, mode);
|
|
}
|
|
|
|
void wlr_output_transform(struct wlr_output *output,
|
|
enum wl_output_transform transform) {
|
|
set_matrix(output->transform_matrix, output->width, output->height, transform);
|
|
output->impl->transform(output->state, transform);
|
|
}
|
|
|
|
void wlr_output_destroy(struct wlr_output *output) {
|
|
if (!output) return;
|
|
output->impl->destroy(output->state);
|
|
for (size_t i = 0; output->modes && i < output->modes->length; ++i) {
|
|
free(output->modes->items[i]);
|
|
}
|
|
list_free(output->modes);
|
|
free(output);
|
|
}
|