1 files changed, 149 insertions, 0 deletions
diff --git a/include/sway/desktop/fx_renderer/fx_renderer.h b/include/sway/desktop/fx_renderer/fx_renderer.h
new file mode 100644
index 00000000..a48a00e1
--- /dev/null
+++ b/include/sway/desktop/fx_renderer/fx_renderer.h
@@ -0,0 +1,149 @@
+#ifndef _SWAY_OPENGL_H
+#define _SWAY_OPENGL_H
+
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#include <stdbool.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;
+};
+
+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 fx_renderer {
+	struct wlr_egl *egl;
+
+	float projection[9];
+
+	GLuint stencil_buffer_id;
+
+	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 {
+			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_begin(struct fx_renderer *renderer, uint32_t width, uint32_t height);
+
+void fx_renderer_end();
+
+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 wlr_texture *wlr_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 wlr_texture *wlr_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);
+
+#endif