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#ifndef RENDER_GLES2_H
#define RENDER_GLES2_H

#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <wlr/backend.h>
#include <wlr/render/egl.h>
#include <wlr/render/gles2.h>
#include <wlr/render/interface.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/render/wlr_texture.h>
#include <wlr/util/log.h>

extern PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES;

struct gles2_pixel_format {
	uint32_t wl_format;
	GLint gl_format, gl_type;
	int depth, bpp;
	bool has_alpha;
};

struct wlr_gles2_renderer {
	struct wlr_renderer wlr_renderer;

	struct wlr_egl *egl;
	const char *exts_str;

	struct {
		GLuint quad;
		GLuint ellipse;
		GLuint tex_rgba;
		GLuint tex_rgbx;
		GLuint tex_ext;
	} shaders;
};

enum wlr_gles2_texture_type {
	WLR_GLES2_TEXTURE_GLTEX,
	WLR_GLES2_TEXTURE_WL_DRM_GL,
	WLR_GLES2_TEXTURE_WL_DRM_EXT,
	WLR_GLES2_TEXTURE_DMABUF,
};

struct wlr_gles2_texture {
	struct wlr_texture wlr_texture;

	struct wlr_egl *egl;
	enum wlr_gles2_texture_type type;
	int width, height;
	bool has_alpha;
	bool inverted_y;

	// Not set if WLR_GLES2_TEXTURE_GLTEX
	EGLImageKHR image;
	GLuint image_tex;

	union {
		GLuint gl_tex;
		struct wl_resource *wl_drm;
	};
};

const struct gles2_pixel_format *gles2_format_from_wl(enum wl_shm_format fmt);
const enum wl_shm_format *gles2_formats(size_t *len);

struct wlr_gles2_texture *gles2_get_texture_in_context(
	struct wlr_texture *wlr_texture);

void gles2_push_marker(const char *file, const char *func);
void gles2_pop_marker(void);
#define GLES2_DEBUG_PUSH gles2_push_marker(wlr_strip_path(__FILE__), __func__)
#define GLES2_DEBUG_POP gles2_pop_marker()

#endif