Use util_clip_triangle() in pan_item_tri_new()
[geeqie.git] / src / renderer-clutter.c
diff --git a/src/renderer-clutter.c b/src/renderer-clutter.c
deleted file mode 100644 (file)
index c0f3b10..0000000
+++ /dev/null
@@ -1,894 +0,0 @@
-/*
- * Geeqie
- * (C) 2006 John Ellis
- * Copyright (C) 2008 - 2012 The Geeqie Team
- *
- * Author: John Ellis
- * Author: Vladimir Nadvornik
- *
- * This software is released under the GNU General Public License (GNU GPL).
- * Please read the included file COPYING for more information.
- * This software comes with no warranty of any kind, use at your own risk!
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "main.h"
-#include "pixbuf-renderer.h"
-#include "renderer-clutter.h"
-
-#include "intl.h"
-#include "layout.h"
-
-#include <gtk/gtk.h>
-
-#ifdef HAVE_CLUTTER
-
-/* for 3d texture */
-#define COGL_ENABLE_EXPERIMENTAL_API
-#define CLUTTER_ENABLE_EXPERIMENTAL_API
-
-#include <clutter/clutter.h>
-
-#include <clutter-gtk/clutter-gtk.h>
-
-
-
-#define GQ_BUILD 1
-
-#ifdef GQ_BUILD
-#include "main.h"
-#include "pixbuf_util.h"
-#include "exif.h"
-#else
-typedef enum {
-       EXIF_ORIENTATION_UNKNOWN        = 0,
-       EXIF_ORIENTATION_TOP_LEFT       = 1,
-       EXIF_ORIENTATION_TOP_RIGHT      = 2,
-       EXIF_ORIENTATION_BOTTOM_RIGHT   = 3,
-       EXIF_ORIENTATION_BOTTOM_LEFT    = 4,
-       EXIF_ORIENTATION_LEFT_TOP       = 5,
-       EXIF_ORIENTATION_RIGHT_TOP      = 6,
-       EXIF_ORIENTATION_RIGHT_BOTTOM   = 7,
-       EXIF_ORIENTATION_LEFT_BOTTOM    = 8
-} ExifOrientationType;
-#endif
-
-#define GET_RIGHT_PIXBUF_OFFSET(rc) \
-        (( (rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
-         (!(rc->stereo_mode & PR_STEREO_RIGHT) &&  (rc->stereo_mode & PR_STEREO_SWAP)) ?  \
-          rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
-
-#define GET_LEFT_PIXBUF_OFFSET(rc) \
-        ((!(rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
-         ( (rc->stereo_mode & PR_STEREO_RIGHT) &&  (rc->stereo_mode & PR_STEREO_SWAP)) ?  \
-          rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
-
-
-typedef struct _OverlayData OverlayData;
-struct _OverlayData
-{
-       gint id;
-
-       GdkPixbuf *pixbuf;
-       ClutterActor *actor;
-
-       gint x;
-       gint y;
-
-       OverlayRendererFlags flags;
-};
-
-typedef struct _RendererClutter RendererClutter;
-
-struct _RendererClutter
-{
-       RendererFuncs f;
-       PixbufRenderer *pr;
-
-
-       gint stereo_mode;
-       gint stereo_off_x;
-       gint stereo_off_y;
-
-
-       GList *pending_updates;
-       gint idle_update;
-
-       GList *overlay_list;
-
-       GtkWidget *widget; /* widget and stage may be shared with other renderers */
-       ClutterActor *stage;
-       ClutterActor *texture;
-       ClutterActor *group;
-
-       gboolean clut_updated;
-       gint64 last_pixbuf_change;
-};
-
-typedef struct _RendererClutterAreaParam RendererClutterAreaParam;
-struct _RendererClutterAreaParam {
-       RendererClutter *rc;
-       gint x;
-       gint y;
-       gint w;
-       gint h;
-};
-
-typedef struct _RendererClutterShaderInfo RendererClutterShaderInfo;
-struct _RendererClutterShaderInfo {
-       float checkersize;
-       float checkercolor0[3];
-       float checkercolor1[3];
-};
-
-#define CLUT_SIZE      32
-
-static void rc_set_shader(CoglHandle material, const RendererClutterShaderInfo *shaderInfo)
-{
-       CoglHandle shader;
-       CoglHandle program;
-       gint uniform_no;
-
-       shader = cogl_create_shader (COGL_SHADER_TYPE_FRAGMENT);
-       cogl_shader_source (shader,
-       "vec3 checker(vec2 texc, vec3 color0, vec3 color1)                                              \n"
-       "{                                                                                                                                              \n"
-       "  if (mod(floor(texc.x) + floor(texc.y), 2.0) == 0.0)                                  \n"
-       "    return color0;                                                                                                             \n"
-       "  else                                                                                                                                 \n"
-       "    return color1;                                                                                                             \n"
-       "}                                                                                                                                              \n"
-       "                                                                                                                                               \n"
-       "uniform sampler2D tex;                                                                                                 \n"
-       "uniform sampler3D clut;                                                                                                \n"
-       "uniform float scale;                                                                                                   \n"
-       "uniform float offset;                                                                                                  \n"
-       "uniform float checkersize;                                                                                             \n"
-       "uniform vec3 color0;                                                                                                   \n"
-       "uniform vec3 color1;                                                                                                   \n"
-       "                                                                                                                                               \n"
-       "void main(void)                                                                                                                \n"
-       "{                                                                                                                                              \n"
-       "    vec3 bg = checker(gl_FragCoord.xy / checkersize, color0, color1);  \n"
-       "    vec4 img4 = texture2D(tex, gl_TexCoord[0].xy);                                             \n"
-       "    vec3 img3 = img4.bgr;                                                                                              \n"
-       "    img3 = img3 * scale + offset;                                                                              \n"
-       "    img3 = texture3D(clut, img3).rgb;                                                                  \n"
-       "                                                                                                                                               \n"
-       "    gl_FragColor = vec4(img3 * img4.a + bg * (1.0 - img4.a), 1.0);             \n"
-       "}                                                                                                                                              \n"
-       );
-       cogl_shader_compile(shader);
-       gchar *err = cogl_shader_get_info_log(shader);
-       DEBUG_0("%s\n",err);
-       g_free(err);
-
-       program = cogl_create_program ();
-       cogl_program_attach_shader (program, shader);
-       cogl_handle_unref (shader);
-       cogl_program_link (program);
-
-       uniform_no = cogl_program_get_uniform_location (program, "tex");
-       cogl_program_set_uniform_1i (program, uniform_no, 0);
-
-       uniform_no = cogl_program_get_uniform_location (program, "clut");
-       cogl_program_set_uniform_1i (program, uniform_no, 1);
-
-       uniform_no = cogl_program_get_uniform_location (program, "scale");
-       cogl_program_set_uniform_1f (program, uniform_no, (double) (CLUT_SIZE - 1) / CLUT_SIZE);
-
-       uniform_no = cogl_program_get_uniform_location (program, "offset");
-       cogl_program_set_uniform_1f (program, uniform_no, 1.0 / (2 * CLUT_SIZE));
-
-       uniform_no = cogl_program_get_uniform_location (program, "checkersize");
-       cogl_program_set_uniform_1f (program, uniform_no, shaderInfo->checkersize);
-
-       uniform_no = cogl_program_get_uniform_location (program, "color0");
-       cogl_program_set_uniform_float (program, uniform_no, 3, 1, shaderInfo->checkercolor0);
-
-       uniform_no = cogl_program_get_uniform_location (program, "color1");
-       cogl_program_set_uniform_float (program, uniform_no, 3, 1, shaderInfo->checkercolor1);
-
-       cogl_material_set_user_program (material, program);
-       cogl_handle_unref (program);
-}
-
-
-static void rc_prepare_post_process_lut(RendererClutter *rc)
-{
-       PixbufRenderer *pr = rc->pr;
-       static guchar clut[CLUT_SIZE * CLUT_SIZE * CLUT_SIZE * 3];
-       guint r, g, b;
-       GdkPixbuf *tmp_pixbuf;
-       CoglHandle material;
-       CoglHandle tex3d;
-
-       DEBUG_0("%s clut start", get_exec_time());
-
-       for (r = 0; r < CLUT_SIZE; r++)
-               {
-               for (g = 0; g < CLUT_SIZE; g++)
-                       {
-                       for (b = 0; b < CLUT_SIZE; b++)
-                               {
-                               guchar *ptr = clut + ((b * CLUT_SIZE + g) * CLUT_SIZE + r) * 3;
-                               ptr[0] = floor ((double) r / (CLUT_SIZE - 1) * 255.0 + 0.5);
-                               ptr[1] = floor ((double) g / (CLUT_SIZE - 1) * 255.0 + 0.5);
-                               ptr[2] = floor ((double) b / (CLUT_SIZE - 1) * 255.0 + 0.5);
-                               }
-                       }
-               }
-       tmp_pixbuf = gdk_pixbuf_new_from_data(clut, GDK_COLORSPACE_RGB, FALSE, 8,
-                                             CLUT_SIZE * CLUT_SIZE,
-                                             CLUT_SIZE,
-                                             CLUT_SIZE * CLUT_SIZE * 3,
-                                             NULL, NULL);
-       if (pr->func_post_process)
-               {
-               pr->func_post_process(pr, &tmp_pixbuf, 0, 0, CLUT_SIZE * CLUT_SIZE, CLUT_SIZE, pr->post_process_user_data);
-               }
-       g_object_unref(tmp_pixbuf);
-
-       DEBUG_0("%s clut upload start", get_exec_time());
-#if CLUTTER_CHECK_VERSION(1,10,0)
-       {
-       CoglContext *ctx = clutter_backend_get_cogl_context(clutter_get_default_backend ());
-
-       tex3d = cogl_texture_3d_new_from_data(ctx,
-                                             CLUT_SIZE, CLUT_SIZE, CLUT_SIZE,
-                                             COGL_PIXEL_FORMAT_RGB_888,
-                                             COGL_PIXEL_FORMAT_RGB_888,
-                                             CLUT_SIZE * 3,
-                                             CLUT_SIZE * CLUT_SIZE * 3,
-                                             clut,
-                                             NULL);
-       }
-#else
-       tex3d = cogl_texture_3d_new_from_data(CLUT_SIZE, CLUT_SIZE, CLUT_SIZE,
-                                             COGL_TEXTURE_NONE,
-                                             COGL_PIXEL_FORMAT_RGB_888,
-                                             COGL_PIXEL_FORMAT_RGB_888,
-                                             CLUT_SIZE * 3,
-                                             CLUT_SIZE * CLUT_SIZE * 3,
-                                             clut,
-                                             NULL);
-#endif
-       material = clutter_texture_get_cogl_material(CLUTTER_TEXTURE(rc->texture));
-       cogl_material_set_layer(material, 1, tex3d);
-       cogl_handle_unref(tex3d);
-       DEBUG_0("%s clut end", get_exec_time());
-       rc->clut_updated = TRUE;
-}
-
-
-
-static void rc_sync_actor(RendererClutter *rc)
-{
-       PixbufRenderer *pr = rc->pr;
-       gint anchor_x = 0;
-       gint anchor_y = 0;
-       gint rot_z = 0;
-       gint rot_y = 0;
-
-       clutter_actor_set_anchor_point(CLUTTER_ACTOR(rc->texture), 0, 0);
-
-       DEBUG_0("scale %d %d", rc->pr->width, rc->pr->height);
-       DEBUG_0("pos   %d %d", rc->pr->x_offset, rc->pr->y_offset);
-
-       clutter_actor_set_scale(CLUTTER_ACTOR(rc->texture),
-                               (gfloat)pr->width / pr->image_width,
-                               (gfloat)pr->height / pr->image_height);
-
-       switch (pr->orientation)
-               {
-               case EXIF_ORIENTATION_TOP_LEFT:
-                       /* 1 - Horizontal (normal)  */
-                       break;
-               case EXIF_ORIENTATION_TOP_RIGHT:
-                       /* 2 - Mirror horizontal */
-                       rot_y = 180;
-                       anchor_x = pr->width;
-                       break;
-               case EXIF_ORIENTATION_BOTTOM_RIGHT:
-                       /* 3 - Rotate 180 */
-                       rot_z = 180;
-                       anchor_x = pr->width;
-                       anchor_y = pr->height;
-                       break;
-               case EXIF_ORIENTATION_BOTTOM_LEFT:
-                       /* 4 - Mirror vertical */
-                       rot_z = 180;
-                       rot_y = 180;
-                       anchor_y = pr->height;
-                       break;
-               case EXIF_ORIENTATION_LEFT_TOP:
-                       /* 5 - Mirror horizontal and rotate 270 CW */
-                       rot_z = 270;
-                       rot_y = 180;
-                       break;
-               case EXIF_ORIENTATION_RIGHT_TOP:
-                       /* 6 - Rotate 90 CW */
-                       rot_z = 90;
-                       anchor_x = pr->width;
-                       break;
-               case EXIF_ORIENTATION_RIGHT_BOTTOM:
-                       /* 7 - Mirror horizontal and rotate 90 CW */
-                       rot_z = 90;
-                       rot_y = 180;
-                       anchor_x = pr->width;
-                       anchor_y = pr->height;
-                       break;
-               case EXIF_ORIENTATION_LEFT_BOTTOM:
-                       /* 8 - Rotate 270 CW */
-                       rot_z = 270;
-                       anchor_y = pr->height;
-                       break;
-               default:
-                       /* The other values are out of range */
-                       break;
-               }
-
-       clutter_actor_set_rotation(     CLUTTER_ACTOR(rc->texture),
-                                                               CLUTTER_Z_AXIS,
-                                                               rot_z, 0, 0, 0);
-       clutter_actor_set_rotation(     CLUTTER_ACTOR(rc->texture),
-                                                               CLUTTER_Y_AXIS,
-                                                               rot_y, 0, 0, 0);
-
-       clutter_actor_set_position(CLUTTER_ACTOR(rc->texture),
-                               pr->x_offset - pr->x_scroll + anchor_x,
-                               pr->y_offset - pr->y_scroll + anchor_y);
-
-}
-
-
-static void rc_area_clip_add(RendererClutter *rc, gfloat x, gfloat y, gfloat w, gfloat h)
-{
-       gfloat x2, y2;
-       gfloat clip_x, clip_y, clip_w, clip_h, clip_x2, clip_y2;
-
-       x2 = x + w;
-       y2 = y + h;
-
-       clutter_actor_get_clip(rc->texture, &clip_x, &clip_y, &clip_w, &clip_h);
-
-       clip_x2 = clip_x + clip_w;
-       clip_y2 = clip_y + clip_h;
-
-       if (clip_x > x) clip_x = x;
-       if (clip_x2 < x2) clip_x2 = x2;
-       if (clip_y > y) clip_y = y;
-       if (clip_y2 < y2) clip_y2 = y2;
-
-       clip_w = clip_x2 - clip_x;
-       clip_h = clip_y2 - clip_y;
-
-       clutter_actor_set_clip(rc->texture, clip_x, clip_y, clip_w, clip_h);
-}
-
-#define MAX_REGION_AREA (32768 * 1024)
-
-static gboolean rc_area_changed_cb(gpointer data);
-
-static void rc_schedule_texture_upload(RendererClutter *rc)
-{
-       if (g_get_monotonic_time() - rc->last_pixbuf_change < 50000)
-               {
-               /* delay clutter redraw until the texture has some data
-                  set priority between gtk redraw and clutter redraw */
-               DEBUG_0("%s tex upload high prio", get_exec_time());
-               rc->idle_update = g_idle_add_full(CLUTTER_PRIORITY_REDRAW - 10, rc_area_changed_cb, rc, NULL);
-               }
-       else
-               {
-               /* higher prio than histogram */
-               DEBUG_0("%s tex upload low prio", get_exec_time());
-
-               rc->idle_update = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE - 5, rc_area_changed_cb, rc, NULL);
-               }
-}
-
-static gboolean rc_area_changed_cb(gpointer data)
-{
-       RendererClutter *rc = (RendererClutter *)data;
-       PixbufRenderer *pr = rc->pr;
-
-       RendererClutterAreaParam *par = rc->pending_updates->data;
-
-       gint h = MAX_REGION_AREA / par->w;
-       if (h == 0) h = 1;
-       if (h > par->h) h = par->h;
-
-
-       DEBUG_0("%s upload start", get_exec_time());
-       if (pr->pixbuf)
-               {
-               CoglHandle texture = clutter_texture_get_cogl_texture(CLUTTER_TEXTURE(rc->texture));
-
-               cogl_texture_set_region(texture,
-                                       par->x + GET_RIGHT_PIXBUF_OFFSET(rc),
-                                       par->y,
-                                       par->x,
-                                       par->y,
-                                       par->w,
-                                       h,
-                                       par->w,
-                                       h,
-                                       gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888,
-                                       gdk_pixbuf_get_rowstride(pr->pixbuf),
-                                       gdk_pixbuf_get_pixels(pr->pixbuf));
-               }
-       DEBUG_0("%s upload end", get_exec_time());
-       rc_area_clip_add(rc, par->x, par->y, par->w, h);
-
-
-       par->y += h;
-       par->h -= h;
-
-       if (par->h == 0)
-               {
-               rc->pending_updates = g_list_remove(rc->pending_updates, par);
-               g_free(par);
-               }
-       if (!rc->pending_updates)
-               {
-               clutter_actor_queue_redraw(CLUTTER_ACTOR(rc->texture));
-               rc->idle_update = 0;
-
-               /* FIXME: find a better place for this */
-               if (!rc->clut_updated) rc_prepare_post_process_lut(rc);
-
-               return FALSE;
-               }
-
-       rc_schedule_texture_upload(rc);
-
-       return FALSE; /* it was rescheduled, possibly with different prio */
-}
-
-
-static void rc_area_changed(void *renderer, gint src_x, gint src_y, gint src_w, gint src_h)
-{
-       RendererClutter *rc = (RendererClutter *)renderer;
-       PixbufRenderer *pr = rc->pr;
-       RendererClutterAreaParam *par;
-
-       gint width = gdk_pixbuf_get_width(pr->pixbuf);
-       gint height = gdk_pixbuf_get_height(pr->pixbuf);
-
-       if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
-                       {
-                       width /= 2;
-                       }
-
-       if (!pr_clip_region(src_x, src_y, src_w, src_h,
-                                               GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height,
-                                               &src_x, &src_y, &src_w, &src_h)) return;
-
-       par = g_new0(RendererClutterAreaParam, 1);
-       par->rc = rc;
-       par->x = src_x - GET_RIGHT_PIXBUF_OFFSET(rc);
-       par->y = src_y;
-       par->w = src_w;
-       par->h = src_h;
-       rc->pending_updates = g_list_append(rc->pending_updates, par);
-       if (!rc->idle_update)
-               {
-               rc_schedule_texture_upload(rc);
-               }
-}
-
-static void rc_remove_pending_updates(RendererClutter *rc)
-{
-       if (rc->idle_update) g_idle_remove_by_data(rc);
-       rc->idle_update = 0;
-       while (rc->pending_updates)
-               {
-               RendererClutterAreaParam *par = rc->pending_updates->data;
-               rc->pending_updates = g_list_remove(rc->pending_updates, par);
-               g_free(par);
-               }
-}
-
-static void rc_update_pixbuf(void *renderer, gboolean lazy)
-{
-       RendererClutter *rc = (RendererClutter *)renderer;
-       PixbufRenderer *pr = rc->pr;
-
-       DEBUG_0("rc_update_pixbuf");
-
-       rc_remove_pending_updates(rc);
-
-       rc->last_pixbuf_change = g_get_monotonic_time();
-       DEBUG_0("%s change time reset", get_exec_time());
-
-       if (pr->pixbuf)
-               {
-               gint width = gdk_pixbuf_get_width(pr->pixbuf);
-               gint height = gdk_pixbuf_get_height(pr->pixbuf);
-
-               DEBUG_0("pixbuf size %d x %d (%d)", width, height, gdk_pixbuf_get_has_alpha(pr->pixbuf) ? 32 : 24);
-
-               gint prev_width, prev_height;
-
-               if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
-                       {
-                       width /= 2;
-                       }
-
-
-               clutter_texture_get_base_size(CLUTTER_TEXTURE(rc->texture), &prev_width, &prev_height);
-
-               if (width != prev_width || height != prev_height)
-                       {
-                       /* FIXME use CoglMaterial with multiple textures for background, color management, anaglyph, ... */
-                       CoglHandle texture = cogl_texture_new_with_size(width,
-                                                                       height,
-                                                                       COGL_TEXTURE_NO_AUTO_MIPMAP | COGL_TEXTURE_NO_SLICING,
-                                                                       gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_BGRA_8888 : COGL_PIXEL_FORMAT_BGR_888);
-
-                       if (texture != COGL_INVALID_HANDLE)
-                               {
-                               clutter_texture_set_cogl_texture(CLUTTER_TEXTURE(rc->texture), texture);
-                               cogl_handle_unref(texture);
-                               }
-                       }
-               clutter_actor_set_clip(rc->texture, 0, 0, 0, 0); /* visible area is extended as area_changed events arrive */
-               if (!lazy)
-                       {
-                       rc_area_changed(renderer, GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height);
-                       }
-               }
-
-       rc->clut_updated = FALSE;
-}
-
-
-
-static void rc_update_zoom(void *renderer, gboolean lazy)
-{
-       RendererClutter *rc = (RendererClutter *)renderer;
-
-       DEBUG_0("rc_update_zoom");
-       rc_sync_actor(rc);
-}
-
-static void rc_invalidate_region(void *renderer, gint x, gint y, gint w, gint h)
-{
-}
-
-static OverlayData *rc_overlay_find(RendererClutter *rc, gint id)
-{
-       GList *work;
-
-       work = rc->overlay_list;
-       while (work)
-               {
-               OverlayData *od = work->data;
-               work = work->next;
-
-               if (od->id == id) return od;
-               }
-
-       return NULL;
-}
-
-static void rc_overlay_actor_destroy_cb(ClutterActor *actor, gpointer user_data)
-{
-       OverlayData *od = user_data;
-       od->actor = NULL;
-}
-
-static void rc_overlay_free(RendererClutter *rc, OverlayData *od)
-{
-       rc->overlay_list = g_list_remove(rc->overlay_list, od);
-
-       if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
-       if (od->actor) clutter_actor_destroy(od->actor);
-       g_free(od);
-}
-
-static void rc_overlay_update_position(RendererClutter *rc, OverlayData *od)
-{
-       gint px, py, pw, ph;
-
-       pw = gdk_pixbuf_get_width(od->pixbuf);
-       ph = gdk_pixbuf_get_height(od->pixbuf);
-       px = od->x;
-       py = od->y;
-
-       if (od->flags & OVL_RELATIVE)
-               {
-               if (px < 0) px = rc->pr->viewport_width - pw + px;
-               if (py < 0) py = rc->pr->viewport_height - ph + py;
-               }
-       if (od->actor) clutter_actor_set_position(od->actor, px, py);
-}
-
-static void rc_overlay_update_positions(RendererClutter *rc)
-{
-       GList *work;
-
-       work = rc->overlay_list;
-       while (work)
-               {
-               OverlayData *od = work->data;
-               work = work->next;
-
-               rc_overlay_update_position(rc, od);
-               }
-}
-
-static void rc_overlay_free_all(RendererClutter *rc)
-{
-       GList *work;
-
-       work = rc->overlay_list;
-       while (work)
-               {
-               OverlayData *od = work->data;
-               work = work->next;
-
-               rc_overlay_free(rc, od);
-               }
-}
-
-static gint rc_overlay_add(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags)
-{
-       RendererClutter *rc = (RendererClutter *)renderer;
-       PixbufRenderer *pr = rc->pr;
-       OverlayData *od;
-       gint id;
-
-       g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
-       g_return_val_if_fail(pixbuf != NULL, -1);
-
-       id = 1;
-       while (rc_overlay_find(rc, id)) id++;
-
-       od = g_new0(OverlayData, 1);
-       od->id = id;
-       od->pixbuf = pixbuf;
-       g_object_ref(G_OBJECT(od->pixbuf));
-       od->x = x;
-       od->y = y;
-       od->flags = flags;
-
-       od->actor = gtk_clutter_texture_new();
-       g_signal_connect (od->actor, "destroy", G_CALLBACK(rc_overlay_actor_destroy_cb), od);
-
-       gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE (od->actor), pixbuf, NULL);
-       clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), od->actor);
-
-       rc->overlay_list = g_list_append(rc->overlay_list, od);
-       rc_overlay_update_position(rc, od);
-
-       return od->id;
-}
-
-static void rc_overlay_set(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y)
-{
-       RendererClutter *rc = (RendererClutter *)renderer;
-       PixbufRenderer *pr = rc->pr;
-       OverlayData *od;
-
-       g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
-       od = rc_overlay_find(rc, id);
-       if (!od) return;
-
-       if (pixbuf)
-               {
-               g_object_ref(G_OBJECT(pixbuf));
-               g_object_unref(G_OBJECT(od->pixbuf));
-               od->pixbuf = pixbuf;
-
-               od->x = x;
-               od->y = y;
-
-               if (od->actor) gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(od->actor), pixbuf, NULL);
-               rc_overlay_update_position(rc, od);
-               }
-       else
-               {
-               rc_overlay_free(rc, od);
-               }
-}
-
-static gboolean rc_overlay_get(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
-{
-       RendererClutter *rc = (RendererClutter *)renderer;
-
-       PixbufRenderer *pr = rc->pr;
-       OverlayData *od;
-
-       g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
-
-       od = rc_overlay_find(rc, id);
-       if (!od) return FALSE;
-
-       if (pixbuf) *pixbuf = od->pixbuf;
-       if (x) *x = od->x;
-       if (y) *y = od->y;
-
-       return TRUE;
-}
-
-
-static void rc_update_viewport(void *renderer)
-{
-       RendererClutter *rc = (RendererClutter *)renderer;
-       ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
-
-       rc->stereo_off_x = 0;
-       rc->stereo_off_y = 0;
-
-       if (rc->stereo_mode & PR_STEREO_RIGHT)
-               {
-               if (rc->stereo_mode & PR_STEREO_HORIZ)
-                       {
-                       rc->stereo_off_x = rc->pr->viewport_width;
-                       }
-               else if (rc->stereo_mode & PR_STEREO_VERT)
-                       {
-                       rc->stereo_off_y = rc->pr->viewport_height;
-                       }
-               else if (rc->stereo_mode & PR_STEREO_FIXED)
-                       {
-                       rc->stereo_off_x = rc->pr->stereo_fixed_x_right;
-                       rc->stereo_off_y = rc->pr->stereo_fixed_y_right;
-                       }
-               }
-       else
-               {
-               if (rc->stereo_mode & PR_STEREO_FIXED)
-                       {
-                       rc->stereo_off_x = rc->pr->stereo_fixed_x_left;
-                       rc->stereo_off_y = rc->pr->stereo_fixed_y_left;
-                       }
-               }
-       DEBUG_0("rc_update_viewport  scale %d %d", rc->pr->width, rc->pr->height);
-
-       clutter_stage_set_color(CLUTTER_STAGE(rc->stage), &stage_color);
-
-
-       clutter_actor_set_size(rc->group, rc->pr->viewport_width, rc->pr->viewport_height);
-       clutter_actor_set_position(rc->group, rc->stereo_off_x, rc->stereo_off_y);
-
-       clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
-                                               CLUTTER_Y_AXIS,
-                                               (rc->stereo_mode & PR_STEREO_MIRROR) ? 180 : 0,
-                                               rc->pr->viewport_width / 2.0, 0, 0);
-
-       clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
-                                               CLUTTER_X_AXIS,
-                                               (rc->stereo_mode & PR_STEREO_FLIP) ? 180 : 0,
-                                               0, rc->pr->viewport_height / 2.0, 0);
-
-       rc_sync_actor(rc);
-       rc_overlay_update_positions(rc);
-}
-
-static void rc_scroll(void *renderer, gint x_off, gint y_off)
-{
-       DEBUG_0("rc_scroll");
-       RendererClutter *rc = (RendererClutter *)renderer;
-
-       rc_sync_actor(rc);
-}
-
-static void rc_stereo_set(void *renderer, gint stereo_mode)
-{
-       RendererClutter *rc = (RendererClutter *)renderer;
-
-       rc->stereo_mode = stereo_mode;
-}
-
-static void rc_free(void *renderer)
-{
-       RendererClutter *rc = (RendererClutter *)renderer;
-       GtkWidget *widget = gtk_bin_get_child(GTK_BIN(rc->pr));
-
-       rc_remove_pending_updates(rc);
-
-       rc_overlay_free_all(rc);
-
-       if (widget)
-               {
-               /* widget still exists */
-               clutter_actor_destroy(rc->group);
-               if (clutter_group_get_n_children(CLUTTER_GROUP(rc->stage)) == 0)
-                       {
-                       DEBUG_1("destroy %p", rc->widget);
-                       /* this was the last user */
-                       gtk_widget_destroy(rc->widget);
-                       }
-               else
-                       {
-                       DEBUG_1("keep %p", rc->widget);
-                       g_object_unref(G_OBJECT(rc->widget));
-                       }
-               }
-       g_free(rc);
-}
-
-/* initialize shader for transparency background checker */
-static void renderer_clutter_init_checker_shader(RendererClutter *rc)
-{
-       const RendererClutterShaderInfo info = {
-               16.0,                           /* checker size */
-               {0.6, 0.6, 0.6},        /* color 0 */
-               {0.4, 0.4, 0.4}         /* color 1 */
-       };
-       rc_set_shader(clutter_texture_get_cogl_material(CLUTTER_TEXTURE(rc->texture)), &info);
-}
-
-RendererFuncs *renderer_clutter_new(PixbufRenderer *pr)
-{
-       RendererClutter *rc = g_new0(RendererClutter, 1);
-
-       rc->pr = pr;
-
-       rc->f.area_changed = rc_area_changed;
-       rc->f.update_pixbuf = rc_update_pixbuf;
-       rc->f.free = rc_free;
-       rc->f.update_zoom = rc_update_zoom;
-       rc->f.invalidate_region = rc_invalidate_region;
-       rc->f.scroll = rc_scroll;
-       rc->f.update_viewport = rc_update_viewport;
-
-
-       rc->f.overlay_add = rc_overlay_add;
-       rc->f.overlay_set = rc_overlay_set;
-       rc->f.overlay_get = rc_overlay_get;
-
-       rc->f.stereo_set = rc_stereo_set;
-
-
-       rc->stereo_mode = 0;
-       rc->stereo_off_x = 0;
-       rc->stereo_off_y = 0;
-
-       rc->idle_update = 0;
-       rc->pending_updates = NULL;
-
-       rc->widget = gtk_bin_get_child(GTK_BIN(rc->pr));
-
-       if (rc->widget)
-               {
-               if (!GTK_CLUTTER_IS_EMBED(rc->widget))
-                       {
-                       g_free(rc);
-                       DEBUG_0("pixbuf renderer has a child of other type than gtk_clutter_embed");
-                       return NULL;
-                       }
-               }
-       else
-               {
-               rc->widget = gtk_clutter_embed_new();
-               gtk_container_add(GTK_CONTAINER(rc->pr), rc->widget);
-               }
-
-       gtk_event_box_set_above_child (GTK_EVENT_BOX(rc->pr), TRUE);
-       rc->stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (rc->widget));
-
-       rc->group = clutter_group_new();
-       clutter_container_add_actor(CLUTTER_CONTAINER(rc->stage), rc->group);
-       clutter_actor_set_clip_to_allocation(CLUTTER_ACTOR(rc->group), TRUE);
-
-       rc->texture = clutter_texture_new ();
-       clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), rc->texture);
-
-       renderer_clutter_init_checker_shader(rc);
-       g_object_ref(G_OBJECT(rc->widget));
-
-       gtk_widget_show(rc->widget);
-       return (RendererFuncs *) rc;
-}
-
-#endif
-/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */