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#ifndef _SWAY_OPENGL_H
#define _SWAY_OPENGL_H
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <stdbool.h>
#include "sway/desktop/fx_renderer/fx_framebuffer.h"
#include "sway/desktop/fx_renderer/fx_texture.h"
enum corner_location { ALL, TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT, NONE };
enum fx_tex_shader_source {
SHADER_SOURCE_TEXTURE_RGBA = 1,
SHADER_SOURCE_TEXTURE_RGBX = 2,
SHADER_SOURCE_TEXTURE_EXTERNAL = 3,
};
enum fx_rounded_quad_shader_source {
SHADER_SOURCE_QUAD_ROUND = 1,
SHADER_SOURCE_QUAD_ROUND_TOP_LEFT = 2,
SHADER_SOURCE_QUAD_ROUND_TOP_RIGHT = 3,
};
struct decoration_data {
float alpha;
float saturation;
int corner_radius;
float dim;
float *dim_color;
bool has_titlebar;
bool blur;
};
struct gles2_tex_shader {
GLuint program;
GLint proj;
GLint tex;
GLint alpha;
GLint pos_attrib;
GLint tex_attrib;
GLint size;
GLint position;
GLint radius;
GLint saturation;
GLint dim;
GLint dim_color;
GLint has_titlebar;
};
struct rounded_quad_shader {
GLuint program;
GLint proj;
GLint color;
GLint pos_attrib;
GLint size;
GLint position;
GLint radius;
};
struct blur_shader {
GLuint program;
GLint proj;
GLint tex;
GLint pos_attrib;
GLint tex_attrib;
GLint radius;
GLint halfpixel;
};
struct fx_renderer {
struct wlr_egl *egl;
float projection[9];
struct sway_output *sway_output;
GLuint stencil_buffer_id;
struct fx_framebuffer wlr_buffer; // Just the framebuffer used by wlroots
struct fx_framebuffer main_buffer; // The main FB used for rendering
struct fx_framebuffer blur_buffer; // Contains the blurred background for tiled windows
// Blur swaps between the two effects buffers everytime it scales the image
struct fx_framebuffer effects_buffer; // Buffer used for effects
struct fx_framebuffer effects_buffer_swapped; // Swap buffer used for effects
bool blur_buffer_dirty;
struct {
bool OES_egl_image_external;
} exts;
struct {
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES;
} procs;
// Shaders
struct {
struct {
GLuint program;
GLint proj;
GLint color;
GLint pos_attrib;
} quad;
struct rounded_quad_shader rounded_quad;
struct rounded_quad_shader rounded_tl_quad;
struct rounded_quad_shader rounded_tr_quad;
struct blur_shader blur1;
struct blur_shader blur2;
struct {
GLuint program;
GLint proj;
GLint color;
GLint pos_attrib;
GLint is_top_left;
GLint is_top_right;
GLint is_bottom_left;
GLint is_bottom_right;
GLint position;
GLint radius;
GLint half_size;
GLint half_thickness;
} corner;
struct {
GLuint program;
GLint proj;
GLint color;
GLint pos_attrib;
GLint position;
GLint size;
GLint blur_sigma;
GLint corner_radius;
} box_shadow;
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 wlr_egl *egl);
void fx_renderer_fini(struct fx_renderer *renderer);
void fx_renderer_begin(struct fx_renderer *renderer, struct sway_output *output);
void fx_renderer_end(struct fx_renderer *renderer);
void fx_renderer_clear(const float color[static 4]);
void fx_renderer_scissor(struct wlr_box *box);
bool fx_render_subtexture_with_matrix(struct fx_renderer *renderer, struct fx_texture *fx_texture,
const struct wlr_fbox *src_box, const struct wlr_box *dst_box, const float matrix[static 9],
struct decoration_data deco_data);
bool fx_render_texture_with_matrix(struct fx_renderer *renderer, struct fx_texture *fx_texture,
const struct wlr_box *dst_box, const float matrix[static 9], struct decoration_data deco_data);
void fx_render_rect(struct fx_renderer *renderer, const struct wlr_box *box,
const float color[static 4], const float projection[static 9]);
void fx_render_rounded_rect(struct fx_renderer *renderer, const struct wlr_box *box,
const float color[static 4], const float projection[static 9],
int radius, enum corner_location corner_location);
void fx_render_border_corner(struct fx_renderer *renderer, const struct wlr_box *box,
const float color[static 4], const float projection[static 9],
enum corner_location corner_location, int radius, int border_thickness);
void fx_render_box_shadow(struct fx_renderer *renderer, const struct wlr_box *box,
const float color[static 4], const float projection[static 9], int radius, float blur_sigma);
void fx_render_blur(struct fx_renderer *renderer, struct sway_output *output,
const float matrix[static 9], struct fx_framebuffer **buffer,
struct blur_shader *shader, const struct wlr_box *box, int blur_radius);
#endif
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