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Transform cursor hotspot, fix wayland cursor hotspot

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This commit is contained in:
emersion 2017-10-29 17:43:26 +01:00
parent 6656e25fd4
commit 95566c6bdf
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GPG key ID: 0FDE7BE0E88F5E48
6 changed files with 150 additions and 110 deletions
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5
types/wlr_cursor.c
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@ -150,9 +150,8 @@ static void wlr_cursor_warp_unchecked(struct wlr_cursor *cur,
double output_y = y;
wlr_output_layout_output_coords(cur->state->layout,
output_cursor->output_cursor->output, &output_x, &output_y);
wlr_output_cursor_move(output_cursor->output_cursor,
output_x - output_cursor->output_cursor->hotspot_x,
output_y - output_cursor->output_cursor->hotspot_y);
wlr_output_cursor_move(output_cursor->output_cursor, output_x,
output_y);
}
cur->x = x;

129
types/wlr_output.c
View file

@ -237,6 +237,44 @@ void wlr_output_make_current(struct wlr_output *output) {
output->impl->make_current(output);
}
static void output_cursor_get_effective_hotspot(
struct wlr_output_cursor *cursor, int32_t *hotspot_x,
int32_t *hotspot_y) {
switch (cursor->output->transform) {
case WL_OUTPUT_TRANSFORM_90:
*hotspot_x = cursor->hotspot_x;
*hotspot_y = -cursor->height + cursor->hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_180:
*hotspot_x = cursor->width - cursor->hotspot_x;
*hotspot_y = cursor->height - cursor->hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_270:
*hotspot_x = -cursor->height + cursor->hotspot_x;
*hotspot_y = cursor->hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED:
*hotspot_x = cursor->width - cursor->hotspot_x;
*hotspot_y = cursor->hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
*hotspot_x = cursor->hotspot_x;
*hotspot_y = -cursor->hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
*hotspot_x = cursor->hotspot_x;
*hotspot_y = cursor->height - cursor->hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
*hotspot_x = -cursor->height + cursor->hotspot_x;
*hotspot_y = cursor->width - cursor->hotspot_y;
break;
default: // WL_OUTPUT_TRANSFORM_NORMAL
*hotspot_x = cursor->hotspot_x;
*hotspot_y = cursor->hotspot_y;
}
}
static void output_cursor_render(struct wlr_output_cursor *cursor) {
struct wlr_texture *texture = cursor->texture;
struct wlr_renderer *renderer = cursor->renderer;
@ -252,9 +290,13 @@ static void output_cursor_render(struct wlr_output_cursor *cursor) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
int32_t hotspot_x, hotspot_y;
output_cursor_get_effective_hotspot(cursor, &hotspot_x, &hotspot_y);
float matrix[16];
wlr_texture_get_matrix(texture, &matrix,
&cursor->output->transform_matrix, cursor->x, cursor->y);
&cursor->output->transform_matrix, cursor->x - hotspot_x,
cursor->y - hotspot_y);
wlr_render_with_matrix(renderer, texture, &matrix);
}
}
@ -295,55 +337,30 @@ static void output_cursor_reset(struct wlr_output_cursor *cursor) {
}
}
static void output_cursor_set_hotspot(struct wlr_output_cursor *cursor,
int32_t hotspot_x, int32_t hotspot_y, uint32_t width, uint32_t height) {
switch (cursor->output->transform) {
case WL_OUTPUT_TRANSFORM_90:
cursor->hotspot_x = hotspot_x;
cursor->hotspot_y = -height + hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_180:
cursor->hotspot_x = width - hotspot_x;
cursor->hotspot_y = height - hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_270:
cursor->hotspot_x = -height + hotspot_x;
cursor->hotspot_y = hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED:
cursor->hotspot_x = width - hotspot_x;
cursor->hotspot_y = hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
cursor->hotspot_x = hotspot_x;
cursor->hotspot_y = -hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
cursor->hotspot_x = hotspot_x;
cursor->hotspot_y = height - hotspot_y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
cursor->hotspot_x = -height + hotspot_x;
cursor->hotspot_y = width - hotspot_y;
break;
default: // WL_OUTPUT_TRANSFORM_NORMAL
cursor->hotspot_x = hotspot_x;
cursor->hotspot_y = hotspot_y;
}
}
bool wlr_output_cursor_set_image(struct wlr_output_cursor *cursor,
const uint8_t *pixels, int32_t stride, uint32_t width, uint32_t height,
int32_t hotspot_x, int32_t hotspot_y) {
output_cursor_reset(cursor);
output_cursor_set_hotspot(cursor, hotspot_x, hotspot_y, width, height);
cursor->width = width;
cursor->height = height;
cursor->hotspot_x = hotspot_x;
cursor->hotspot_y = hotspot_y;
if (cursor->output->hardware_cursor == NULL &&
cursor->output->impl->set_cursor &&
cursor->output->impl->set_cursor(cursor->output, pixels, stride,
width, height, cursor->hotspot_x, cursor->hotspot_y, true)) {
cursor->output->hardware_cursor = cursor;
return true;
cursor->output->impl->set_cursor) {
int32_t hotspot_eff_x, hotspot_eff_y;
output_cursor_get_effective_hotspot(cursor, &hotspot_eff_x,
&hotspot_eff_y);
// TODO: also transform pixels with output->transform before calling
// set_cursor
int ok = cursor->output->impl->set_cursor(cursor->output, pixels,
stride, width, height, hotspot_eff_x, hotspot_eff_y, true);
if (ok) {
cursor->output->hardware_cursor = cursor;
return true;
}
}
wlr_log(L_INFO, "Falling back to software cursor");
@ -366,6 +383,13 @@ bool wlr_output_cursor_set_image(struct wlr_output_cursor *cursor,
stride, width, height, pixels);
}
static void output_cursor_commit(struct wlr_output_cursor *cursor) {
cursor->width = cursor->surface->current->width;
cursor->height = cursor->surface->current->height;
// TODO: if hardware cursor, upload pixels
}
static inline int64_t timespec_to_msec(const struct timespec *a) {
return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
}
@ -376,7 +400,7 @@ static void output_cursor_handle_commit(struct wl_listener *listener,
surface_commit);
struct wlr_surface *surface = data;
// TODO: if hardware cursor, upload pixels
output_cursor_commit(cursor);
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
@ -402,16 +426,23 @@ void wlr_output_cursor_set_surface(struct wlr_output_cursor *cursor,
return;
}
output_cursor_set_hotspot(cursor, hotspot_x, hotspot_y,
surface->current->width, surface->current->height);
if (surface) {
cursor->width = surface->current->width;
cursor->height = surface->current->height;
}
cursor->hotspot_x = hotspot_x;
cursor->hotspot_y = hotspot_y;
if (surface && surface == cursor->surface) {
if (cursor->output->hardware_cursor == cursor &&
cursor->output->impl->set_cursor) {
// If the surface hasn't changed and it's an hardware cursor, only
// update the hotspot
int32_t hotspot_eff_x, hotspot_eff_y;
output_cursor_get_effective_hotspot(cursor, &hotspot_eff_x,
&hotspot_eff_y);
cursor->output->impl->set_cursor(cursor->output, NULL, 0, 0, 0,
cursor->hotspot_x, cursor->hotspot_y, false);
hotspot_eff_x, hotspot_eff_y, false);
}
return;
}
@ -432,7 +463,7 @@ void wlr_output_cursor_set_surface(struct wlr_output_cursor *cursor,
if (surface != NULL) {
wl_signal_add(&surface->events.commit, &cursor->surface_commit);
wl_signal_add(&surface->events.destroy, &cursor->surface_destroy);
// TODO: if hardware cursor, upload pixels
output_cursor_commit(cursor);
} else {
// TODO: if hardware cursor, disable cursor
}