diff options
Diffstat (limited to 'include/wlr')
-rw-r--r-- | include/wlr/render/interface.h | 17 | ||||
-rw-r--r-- | include/wlr/render/wlr_renderer.h | 68 |
2 files changed, 85 insertions, 0 deletions
diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h index 07b26fbc..85a98202 100644 --- a/include/wlr/render/interface.h +++ b/include/wlr/render/interface.h @@ -48,6 +48,8 @@ struct wlr_renderer_impl { uint32_t (*get_render_buffer_caps)(struct wlr_renderer *renderer); struct wlr_texture *(*texture_from_buffer)(struct wlr_renderer *renderer, struct wlr_buffer *buffer); + struct wlr_render_pass *(*begin_buffer_pass)(struct wlr_renderer *renderer, + struct wlr_buffer *buffer); }; void wlr_renderer_init(struct wlr_renderer *renderer, @@ -62,4 +64,19 @@ struct wlr_texture_impl { void wlr_texture_init(struct wlr_texture *texture, struct wlr_renderer *rendener, const struct wlr_texture_impl *impl, uint32_t width, uint32_t height); +struct wlr_render_pass { + const struct wlr_render_pass_impl *impl; +}; + +void wlr_render_pass_init(struct wlr_render_pass *pass, + const struct wlr_render_pass_impl *impl); + +struct wlr_render_pass_impl { + bool (*submit)(struct wlr_render_pass *pass); + void (*add_texture)(struct wlr_render_pass *pass, + const struct wlr_render_texture_options *options); + void (*add_rect)(struct wlr_render_pass *pass, + const struct wlr_render_rect_options *options); +}; + #endif diff --git a/include/wlr/render/wlr_renderer.h b/include/wlr/render/wlr_renderer.h index 0e08fe24..f6b58df5 100644 --- a/include/wlr/render/wlr_renderer.h +++ b/include/wlr/render/wlr_renderer.h @@ -12,6 +12,7 @@ #include <stdint.h> #include <wayland-server-core.h> #include <wlr/render/wlr_texture.h> +#include <wlr/util/box.h> struct wlr_backend; struct wlr_renderer_impl; @@ -155,4 +156,71 @@ int wlr_renderer_get_drm_fd(struct wlr_renderer *r); */ void wlr_renderer_destroy(struct wlr_renderer *renderer); +/** + * A render pass accumulates drawing operations until submitted to the GPU. + */ +struct wlr_render_pass; + +/** + * Begin a new render pass with the supplied destination buffer. + * + * Callers must call wlr_render_pass_submit() once they are done with the + * render pass. + */ +struct wlr_render_pass *wlr_renderer_begin_buffer_pass( + struct wlr_renderer *renderer, struct wlr_buffer *buffer); + +/** + * Submit the render pass. + * + * The render pass cannot be used after this function is called. + */ +bool wlr_render_pass_submit(struct wlr_render_pass *render_pass); + +struct wlr_render_texture_options { + /* Source texture */ + struct wlr_texture *texture; + /* Source coordinates, leave empty to render the whole texture */ + struct wlr_fbox src_box; + /* Destination coordinates, width/height default to the texture size */ + struct wlr_box dst_box; + /* Opacity between 0 (transparent) and 1 (opaque), leave NULL for opaque */ + const float *alpha; + /* Clip region, leave NULL to disable clipping */ + const pixman_region32_t *clip; + /* Transform applied to the source texture */ + enum wl_output_transform transform; +}; + +/** + * Render a texture. + */ +void wlr_render_pass_add_texture(struct wlr_render_pass *render_pass, + const struct wlr_render_texture_options *options); + +/** + * A color value. + * + * Each channel has values between 0 and 1 inclusive. The R, G, B + * channels need to be pre-multiplied by A. + */ +struct wlr_render_color { + float r, g, b, a; +}; + +struct wlr_render_rect_options { + /* Rectangle coordinates */ + struct wlr_box box; + /* Source color */ + struct wlr_render_color color; + /* Clip region, leave NULL to disable clipping */ + const pixman_region32_t *clip; +}; + +/** + * Render a rectangle. + */ +void wlr_render_pass_add_rect(struct wlr_render_pass *render_pass, + const struct wlr_render_rect_options *options); + #endif |