diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cursor.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/src/cursor.c b/src/cursor.c deleted file mode 100644 index 9212b55..0000000 --- a/src/cursor.c +++ /dev/null @@ -1,135 +0,0 @@ -#include "../include/cursor.h" - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <assert.h> - -#include <X11/extensions/Xfixes.h> - -static bool gsr_cursor_set_from_x11_cursor_image(gsr_cursor *self, XFixesCursorImage *x11_cursor_image) { - uint8_t *cursor_data = NULL; - uint8_t *out = NULL; - - if(!x11_cursor_image) - goto err; - - if(!x11_cursor_image->pixels) - goto err; - - self->hotspot.x = x11_cursor_image->xhot; - self->hotspot.y = x11_cursor_image->yhot; - self->egl->glBindTexture(GL_TEXTURE_2D, self->texture_id); - - self->size.x = x11_cursor_image->width; - self->size.y = x11_cursor_image->height; - const unsigned long *pixels = x11_cursor_image->pixels; - cursor_data = malloc(self->size.x * self->size.y * 4); - if(!cursor_data) - goto err; - out = cursor_data; - /* Un-premultiply alpha */ - for(int y = 0; y < self->size.y; ++y) { - for(int x = 0; x < self->size.x; ++x) { - uint32_t pixel = *pixels++; - uint8_t *in = (uint8_t*)&pixel; - uint8_t alpha = in[3]; - if(alpha == 0) - alpha = 1; - - *out++ = (unsigned)*in++ * 255/alpha; - *out++ = (unsigned)*in++ * 255/alpha; - *out++ = (unsigned)*in++ * 255/alpha; - *out++ = *in++; - } - } - - self->egl->glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, self->size.x, self->size.y, 0, GL_RGBA, GL_UNSIGNED_BYTE, cursor_data); - free(cursor_data); - - self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - self->egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - - self->egl->glBindTexture(GL_TEXTURE_2D, 0); - XFree(x11_cursor_image); - return true; - - err: - self->egl->glBindTexture(GL_TEXTURE_2D, 0); - if(x11_cursor_image) - XFree(x11_cursor_image); - return false; -} - -int gsr_cursor_init(gsr_cursor *self, gsr_egl *egl, Display *display) { - int x_fixes_error_base = 0; - - assert(egl); - assert(display); - memset(self, 0, sizeof(*self)); - self->egl = egl; - self->display = display; - - self->x_fixes_event_base = 0; - if(!XFixesQueryExtension(self->display, &self->x_fixes_event_base, &x_fixes_error_base)) { - fprintf(stderr, "gsr error: gsr_cursor_init: your X11 server is missing the XFixes extension\n"); - gsr_cursor_deinit(self); - return -1; - } - - self->egl->glGenTextures(1, &self->texture_id); - return 0; -} - -void gsr_cursor_deinit(gsr_cursor *self) { - if(!self->egl) - return; - - if(self->texture_id) { - self->egl->glDeleteTextures(1, &self->texture_id); - self->texture_id = 0; - } - - if(self->window) { - XFixesSelectCursorInput(self->display, self->window, 0); - self->window = None; - } - - self->display = NULL; - self->egl = NULL; -} - -int gsr_cursor_change_window_target(gsr_cursor *self, Window window) { - if(self->window) - XFixesSelectCursorInput(self->display, self->window, 0); - - XFixesSelectCursorInput(self->display, window, XFixesDisplayCursorNotifyMask); - self->window = window; - self->cursor_image_set = false; - return 0; -} - -void gsr_cursor_update(gsr_cursor *self, XEvent *xev) { - if(xev->type == self->x_fixes_event_base + XFixesCursorNotify) { - XFixesCursorNotifyEvent *cursor_notify_event = (XFixesCursorNotifyEvent*)xev; - if(cursor_notify_event->subtype == XFixesDisplayCursorNotify && cursor_notify_event->window == self->window) { - self->cursor_image_set = true; - gsr_cursor_set_from_x11_cursor_image(self, XFixesGetCursorImage(self->display)); - } - } - - if(!self->cursor_image_set && self->window) { - self->cursor_image_set = true; - gsr_cursor_set_from_x11_cursor_image(self, XFixesGetCursorImage(self->display)); - } -} - -void gsr_cursor_tick(gsr_cursor *self) { - /* TODO: Use XInput2 instead. However that doesn't work when the pointer is grabbed. Maybe check for focused window change and XSelectInput PointerMask */ - Window dummy_window; - int dummy_i; - unsigned int dummy_u; - XQueryPointer(self->display, DefaultRootWindow(self->display), &dummy_window, &dummy_window, &dummy_i, &dummy_i, &self->position.x, &self->position.y, &dummy_u); -} |