mirror of https://github.com/yshui/picom.git
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
// SPDX-License-Identifier: MPL-2.0
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// Copyright (c) Yuxuan Shui <yshuiv7@gmail.com>
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#pragma once
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#include <xcb/render.h>
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#include <xcb/xcb_image.h>
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#include <stdbool.h>
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#include "backend.h"
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#include "config.h"
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#include "region.h"
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typedef struct session session_t;
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typedef struct win win;
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typedef struct conv conv;
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typedef struct backend_base backend_t;
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struct backend_operations;
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struct dual_kawase_params {
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/// Number of downsample passes
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int iterations;
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/// Pixel offset for down- and upsample
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float offset;
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/// Save area around blur target (@ref resize_width, @ref resize_height)
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int expand;
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};
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struct backend_image_inner_base {
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int refcount;
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bool has_alpha;
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};
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struct backend_image {
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// Backend dependent inner image data
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struct backend_image_inner_base *inner;
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double opacity;
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double dim;
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double max_brightness;
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double corner_radius;
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// Effective size of the image
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int ewidth, eheight;
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bool color_inverted;
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int border_width;
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};
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bool build_shadow(struct x_connection *, double opacity, int width, int height,
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const conv *kernel, xcb_render_picture_t shadow_pixel,
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xcb_pixmap_t *pixmap, xcb_render_picture_t *pict);
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xcb_render_picture_t
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solid_picture(struct x_connection *, bool argb, double a, double r, double g, double b);
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xcb_image_t *make_shadow(struct x_connection *c, const conv *kernel, double opacity,
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int width, int height);
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void *default_render_shadow(backend_t *backend_data, int width, int height,
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struct backend_shadow_context *sctx, struct color color);
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/// Implement `render_shadow` with `shadow_from_mask`.
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void *
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backend_render_shadow_from_mask(backend_t *backend_data, int width, int height,
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struct backend_shadow_context *sctx, struct color color);
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struct backend_shadow_context *
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default_create_shadow_context(backend_t *backend_data, double radius);
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void default_destroy_shadow_context(backend_t *backend_data,
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struct backend_shadow_context *sctx);
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void init_backend_base(struct backend_base *base, session_t *ps);
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struct conv **generate_blur_kernel(enum blur_method method, void *args, int *kernel_count);
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struct dual_kawase_params *generate_dual_kawase_params(void *args);
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void *default_clone_image(backend_t *base, const void *image_data, const region_t *reg);
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bool default_is_image_transparent(backend_t *base attr_unused, void *image_data);
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bool default_set_image_property(backend_t *base attr_unused, enum image_properties op,
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void *image_data, void *arg);
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struct backend_image *default_new_backend_image(int w, int h);
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