sway/include/sway/desktop/fx_renderer.h

#ifndef _SWAY_OPENGL_H
#define _SWAY_OPENGL_H

#include <GLES2/gl2.h>
#include "sway/server.h"

struct gles2_tex_shader {
	GLuint program;
	GLint proj;
	GLint tex;
	GLint alpha;
	GLint pos_attrib;
	GLint tex_attrib;
};

struct fx_renderer {
	// for simple rendering
	struct wlr_renderer* wlr_renderer;

	struct wlr_egl *egl;

	float projection[9];

	struct sway_output *current;

	// Shaders
	struct {
		struct {
			GLuint program;
			GLint proj;
			GLint color;
			GLint pos_attrib;
		} quad;
		struct gles2_tex_shader tex_rgba;
		struct gles2_tex_shader tex_rgbx;
		struct gles2_tex_shader tex_ext;
	} shaders;
};

struct fx_renderer *fx_renderer_create(struct sway_server *server);

void fx_renderer_begin(struct fx_renderer *renderer, struct sway_output *output);

void fx_renderer_end(struct fx_renderer *renderer, pixman_region32_t* damage, struct sway_output* output);

void fx_renderer_scissor(struct wlr_box *box);

bool fx_render_subtexture_with_matrix(struct fx_renderer *renderer,
		struct wlr_texture *wlr_texture, const struct wlr_fbox *box,
		const float matrix[static 9], float alpha);

bool fx_render_texture_with_matrix(struct fx_renderer *renderer,
		struct wlr_texture *wlr_texture, const float matrix[static 9], float alpha);

#endif