gnome-shell/src/shell-glsl-quad.h

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
#ifndef __SHELL_GLSL_QUAD_H__
#define __SHELL_GLSL_QUAD_H__

#include "st.h"
#include <gtk/gtk.h>

/**
 * ShellSnippetHook:
 * Temporary hack to work around Cogl not exporting CoglSnippetHook in
 * the 1.0 API. Don't use.
 */
typedef enum {
  /* Per pipeline vertex hooks */
  SHELL_SNIPPET_HOOK_VERTEX = 0,
  SHELL_SNIPPET_HOOK_VERTEX_TRANSFORM,

  /* Per pipeline fragment hooks */
  SHELL_SNIPPET_HOOK_FRAGMENT = 2048,

  /* Per layer vertex hooks */
  SHELL_SNIPPET_HOOK_TEXTURE_COORD_TRANSFORM = 4096,

  /* Per layer fragment hooks */
  SHELL_SNIPPET_HOOK_LAYER_FRAGMENT = 6144,
  SHELL_SNIPPET_HOOK_TEXTURE_LOOKUP
} ShellSnippetHook;

#define SHELL_TYPE_GLSL_QUAD                 (shell_glsl_quad_get_type ())
#define SHELL_GLSL_QUAD(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), SHELL_TYPE_GLSL_QUAD, ShellGLSLQuad))
#define SHELL_GLSL_QUAD_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass), SHELL_TYPE_GLSL_QUAD, ShellGLSLQuadClass))
#define SHELL_IS_GLSL_QUAD(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SHELL_TYPE_GLSL_QUAD))
#define SHELL_IS_GLSL_QUAD_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass), SHELL_TYPE_GLSL_QUAD))
#define SHELL_GLSL_QUAD_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj), SHELL_TYPE_GLSL_QUAD, ShellGLSLQuadClass))

typedef struct _ShellGLSLQuad        ShellGLSLQuad;
typedef struct _ShellGLSLQuadClass   ShellGLSLQuadClass;
typedef struct _ShellGLSLQuadPrivate ShellGLSLQuadPrivate;

struct _ShellGLSLQuad
{
  ClutterActor parent;

  ShellGLSLQuadPrivate *priv;
};

struct _ShellGLSLQuadClass
{
  ClutterActorClass parent_class;

  CoglPipeline *base_pipeline;

  void (*build_pipeline) (ShellGLSLQuad *effect);
};

GType shell_glsl_quad_get_type (void) G_GNUC_CONST;

void shell_glsl_quad_add_glsl_snippet (ShellGLSLQuad    *quad,
                                       ShellSnippetHook  hook,
                                       const char       *declarations,
                                       const char       *code,
                                       gboolean          is_replace);

int  shell_glsl_quad_get_uniform_location (ShellGLSLQuad *quad,
                                           const char    *name);
void shell_glsl_quad_set_uniform_float    (ShellGLSLQuad *quad,
                                           int            uniform,
                                           int            n_components,
                                           int            total_count,
                                           const float   *value);

#endif /* __SHELL_GLSL_QUAD_H__ */