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Further improvements to rendering subsystem

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This commit is contained in:
Drew DeVault 2017-06-08 15:52:42 -04:00
parent 83f8864f0a
commit cd6a40d816
17 changed files with 475 additions and 336 deletions
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86
include/wlr/render.h
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@ -2,30 +2,74 @@
#define _WLR_RENDER_H
#include <stdint.h>
#include <wayland-server-protocol.h>
#include <wlr/types.h>
struct wlr_surface;
struct wlr_surface *wlr_surface_init();
void wlr_surface_attach_pixels(struct wlr_surface *surf, uint32_t format,
int width, int height, const unsigned char *pixels);
void wlr_surface_attach_shm(struct wlr_surface *surf, uint32_t format,
struct wl_shm_buffer *shm);
// TODO: EGL
void wlr_surface_destroy(struct wlr_surface *tex);
struct wlr_shader;
struct wlr_shader *wlr_shader_init(const char *vertex);
bool wlr_shader_add_format(struct wlr_shader *shader, uint32_t format,
const char *frag);
bool wlr_shader_use(struct wlr_shader *shader, uint32_t format);
void wlr_shader_destroy(struct wlr_shader *shader);
struct wlr_renderer;
struct wlr_renderer *wlr_renderer_init();
void wlr_renderer_set_shader(struct wlr_renderer *renderer,
struct wlr_shader *shader);
bool wlr_render_quad(struct wlr_renderer *renderer,
struct wlr_surface *surf, float (*transform)[16],
float x, float y);
void wlr_renderer_begin(struct wlr_renderer *r, struct wlr_output *output);
void wlr_renderer_end(struct wlr_renderer *r);
/**
* Requests a surface handle from this renderer.
*/
struct wlr_surface *wlr_render_surface_init(struct wlr_renderer *r);
/**
* Renders the requested surface using the provided matrix. A typical surface
* rendering goes like so:
*
* struct wlr_renderer *renderer;
* struct wlr_surface *surface;
* float projection[16];
* float matrix[16];
* wlr_surface_get_matrix(surface, &matrix, &projection, 123, 321);
* wlr_render_with_matrix(renderer, surface, &matrix);
*
* This will render the surface at <123, 321>.
*/
bool wlr_render_with_matrix(struct wlr_renderer *r,
struct wlr_surface *surface, const float (*matrix)[16]);
/**
* Destroys this wlr_renderer. Surfaces must be destroyed separately.
*/
void wlr_renderer_destroy(struct wlr_renderer *renderer);
struct wlr_surface_impl;
struct wlr_surface_state;
struct wlr_surface {
struct wlr_surface_impl *impl;
struct wlr_surface_state *state;
bool valid;
uint32_t format;
int width, height;
};
/**
* Attaches a pixel buffer to this surface. The buffer may be discarded after
* calling this function.
*/
bool wlr_surface_attach_pixels(struct wlr_surface *surf, uint32_t format,
int width, int height, const unsigned char *pixels);
/**
* Attaches pixels from a wl_shm_buffer to this surface. The shm buffer may be
* invalidated after calling this function.
*/
bool wlr_surface_attach_shm(struct wlr_surface *surf, uint32_t format,
struct wl_shm_buffer *shm);
/**
* Prepares a matrix with the appropriate scale for the given surface and
* multiplies it with the projection, producing a matrix that the shader can
* muptlipy vertex coordinates with to get final screen coordinates.
*
* The projection matrix is assumed to be an orthographic projection of [0,
* width) and [0, height], and the x and y coordinates provided are used as
* such.
*/
void wlr_surface_get_matrix(struct wlr_surface *surface,
float (*matrix)[16], const float (*projection)[16], int x, int y);
/**
* Destroys this wlr_surface.
*/
void wlr_surface_destroy(struct wlr_surface *tex);
#endif