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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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14
include/wlr/types/wlr_surface.h
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@ -55,7 +55,17 @@ struct wlr_renderer;
struct wlr_surface *wlr_surface_create(struct wl_resource *res,
struct wlr_renderer *renderer);
void wlr_surface_flush_damage(struct wlr_surface *surface);
void wlr_surface_get_matrix(struct wlr_surface *surface, float (*matrix)[16],
const float (*projection)[16], int x, int y);
/**
* Gets a matrix you can pass into wlr_render_with_matrix to display this
* surface. `matrix` is the output matrix, `projection` is the wlr_output
* projection matrix, and `transform` is any additional transformations you want
* to perform on the surface (or NULL/the identity matrix if you don't).
* `transform` is used before the surface is scaled, so its geometry extends
* from 0 to 1 in both dimensions.
*/
void wlr_surface_get_matrix(struct wlr_surface *surface,
float (*matrix)[16],
const float (*projection)[16],
const float (*transform)[16]);
#endif