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Change how surface matricies are calculated

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This commit is contained in:
Drew DeVault 2017-08-15 08:52:30 -04:00
parent 09faf4ff64
commit f60b53c6e3
3 changed files with 25 additions and 9 deletions
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15
types/wlr_surface.c
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@ -353,14 +353,17 @@ struct wlr_surface *wlr_surface_create(struct wl_resource *res,
}
void wlr_surface_get_matrix(struct wlr_surface *surface,
float (*matrix)[16], const float (*projection)[16], int x, int y) {
float (*matrix)[16],
const float (*projection)[16],
const float (*transform)[16]) {
int width = surface->texture->width / surface->current.scale;
int height = surface->texture->height / surface->current.scale;
float world[16];
float scale[16];
wlr_matrix_identity(matrix);
wlr_matrix_translate(&world, x, y, 0);
wlr_matrix_mul(matrix, &world, matrix);
wlr_matrix_scale(&world, width, height, 1);
wlr_matrix_mul(matrix, &world, matrix);
if (transform) {
wlr_matrix_mul(matrix, transform, matrix);
}
wlr_matrix_scale(&scale, width, height, 1);
wlr_matrix_mul(matrix, &scale, matrix);
wlr_matrix_mul(projection, matrix, matrix);
}