hyprwm/wlroots-hyprland
1
0
Fork 0
mirror of https://github.com/hyprwm/wlroots-hyprland.git synced 2024-11-22 21:05:58 +01:00
Code Issues Projects Releases Packages Wiki Activity

fixes 90 degree rotation screenshots

Browse source 
This fixes the screenshot example application when an output is rotated
by 90 degrees.
Other tranformations are not taken into account yet.
This commit is contained in:
Markus Ongyerth 2018-01-31 12:54:57 +01:00
parent 429f06d3f1
commit 4afc933ea4
1 changed files with 27 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
examples/screenshot.c
View file

@ -48,6 +48,7 @@ struct screenshooter_output {
struct wl_output *output; struct wl_output *output;
struct wl_buffer *buffer; struct wl_buffer *buffer;
int width, height, offset_x, offset_y; int width, height, offset_x, offset_y;
int transform;
void *data; void *data;
struct wl_list link; struct wl_list link;
}; };
@ -60,6 +61,7 @@ static void output_handle_geometry(void *data, struct wl_output *wl_output,
if (wl_output == output->output) { if (wl_output == output->output) {
output->offset_x = x; output->offset_x = x;
output->offset_y = y; output->offset_y = y;
output->transform = transform;
} }
} }
@ -163,11 +165,22 @@ static void write_image(const char *filename, int width, int height) {
void *d = data + (output->offset_y - min_y) * buffer_stride + void *d = data + (output->offset_y - min_y) * buffer_stride +
(output->offset_x - min_x) * 4; (output->offset_x - min_x) * 4;
if (output->transform == WL_OUTPUT_TRANSFORM_90) {
uint32_t *ss = s;
uint32_t *sd = d;
for (int i = 0; i < output->width; ++i) {
for (int j = 0; j < output->height; ++j) {
sd[i * width + j]
= ss[j * output->width + (output->width - i)];
}
}
} else {
for (int i = 0; i < output->height; i++) { for (int i = 0; i < output->height; i++) {
memcpy(d, s, output_stride); memcpy(d, s, output_stride);
d += buffer_stride; d += buffer_stride;
s += output_stride; s += output_stride;
} }
}
free(output); free(output);
} }
@ -211,15 +224,23 @@ static void write_image(const char *filename, int width, int height) {
} }
static int set_buffer_size(int *width, int *height) { static int set_buffer_size(int *width, int *height) {
int owidth, oheight;
min_x = min_y = INT_MAX; min_x = min_y = INT_MAX;
max_x = max_y = INT_MIN; max_x = max_y = INT_MIN;
struct screenshooter_output *output; struct screenshooter_output *output;
wl_list_for_each(output, &output_list, link) { wl_list_for_each(output, &output_list, link) {
if (output->transform & 0x1) {
owidth = output->height;
oheight = output->width;
} else {
owidth = output->width;
oheight = output->height;
}
min_x = MIN(min_x, output->offset_x); min_x = MIN(min_x, output->offset_x);
min_y = MIN(min_y, output->offset_y); min_y = MIN(min_y, output->offset_y);
max_x = MAX(max_x, output->offset_x + output->width); max_x = MAX(max_x, output->offset_x + owidth);
max_y = MAX(max_y, output->offset_y + output->height); max_y = MAX(max_y, output->offset_y + oheight);
} }
if (max_x <= min_x || max_y <= min_y) { if (max_x <= min_x || max_y <= min_y) {