+/*
+ * GQview
+ * (C) 2006 John Ellis
+ *
+ * Author: John Ellis
+ *
+ * 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 "gqview.h"
+#include "color-man.h"
+
+#include "image.h"
+#include "ui_fileops.h"
+
+
+#ifdef HAVE_LCMS
+/*** color support enabled ***/
+
+#ifdef HAVE_LCMS_LCMS_H
+ #include <lcms/lcms.h>
+#else
+ #include <lcms.h>
+#endif
+
+
+typedef struct _ColorManCache ColorManCache;
+struct _ColorManCache {
+ cmsHPROFILE profile_in;
+ cmsHPROFILE profile_out;
+ cmsHTRANSFORM transform;
+
+ ColorManProfileType profile_in_type;
+ gchar *profile_in_file;
+
+ ColorManProfileType profile_out_type;
+ gchar *profile_out_file;
+
+ gint has_alpha;
+
+ gint refcount;
+};
+
+/* pixels to transform per idle call */
+#define COLOR_MAN_CHUNK_SIZE 81900
+
+
+static void color_man_lib_init(void)
+{
+ static gint init_done = FALSE;
+
+ if (init_done) return;
+ init_done = TRUE;
+
+ cmsErrorAction(LCMS_ERROR_IGNORE);
+}
+
+
+/*
+ *-------------------------------------------------------------------
+ * color transform cache
+ *-------------------------------------------------------------------
+ */
+
+static GList *cm_cache_list = NULL;
+
+
+static void color_man_cache_ref(ColorManCache *cc)
+{
+ if (!cc) return;
+
+ cc->refcount++;
+}
+
+static void color_man_cache_unref(ColorManCache *cc)
+{
+ if (!cc) return;
+
+ cc->refcount--;
+ if (cc->refcount < 1)
+ {
+ if (cc->transform) cmsDeleteTransform(cc->transform);
+ if (cc->profile_in) cmsCloseProfile(cc->profile_in);
+ if (cc->profile_out) cmsCloseProfile(cc->profile_out);
+
+ g_free(cc->profile_in_file);
+ g_free(cc->profile_out_file);
+
+ g_free(cc);
+ }
+}
+
+static cmsHPROFILE color_man_cache_load_profile(ColorManProfileType type, const gchar *file)
+{
+ cmsHPROFILE profile = NULL;
+
+ switch (type)
+ {
+ case COLOR_PROFILE_FILE:
+ if (file)
+ {
+ gchar *pathl;
+
+ pathl = path_from_utf8(file);
+ profile = cmsOpenProfileFromFile(pathl, "r");
+ g_free(pathl);
+ }
+ break;
+ case COLOR_PROFILE_SRGB:
+ profile = cmsCreate_sRGBProfile();
+ break;
+ case COLOR_PROFILE_NONE:
+ default:
+ break;
+ }
+
+ return profile;
+}
+
+static ColorManCache *color_man_cache_new(ColorManProfileType in_type, const gchar *in_file,
+ ColorManProfileType out_type, const gchar *out_file,
+ gint has_alpha)
+{
+ ColorManCache *cc;
+
+ color_man_lib_init();
+
+ cc = g_new0(ColorManCache, 1);
+ cc->refcount = 1;
+
+ cc->profile_in_type = in_type;
+ cc->profile_in_file = g_strdup(in_file);
+
+ cc->profile_out_type = out_type;
+ cc->profile_out_file = g_strdup(out_file);
+
+ cc->has_alpha = has_alpha;
+
+ cc->profile_in = color_man_cache_load_profile(cc->profile_in_type, cc->profile_in_file);
+ cc->profile_out = color_man_cache_load_profile(cc->profile_out_type, cc->profile_out_file);
+
+ if (!cc->profile_in || !cc->profile_out)
+ {
+ if (debug) printf("failed to load color profile for %s: %d %s\n",
+ (!cc->profile_in) ? "input" : "screen",
+ (!cc->profile_in) ? cc->profile_in_type : cc->profile_out_type,
+ (!cc->profile_in) ? cc->profile_in_file : cc->profile_out_file);
+
+ color_man_cache_unref(cc);
+ return NULL;
+ }
+
+ cc->transform = cmsCreateTransform(cc->profile_in,
+ (has_alpha) ? TYPE_RGBA_8 : TYPE_RGB_8,
+ cc->profile_out,
+ (has_alpha) ? TYPE_RGBA_8 : TYPE_RGB_8,
+ INTENT_PERCEPTUAL, 0);
+
+ if (!cc->transform)
+ {
+ if (debug) printf("failed to create color profile transform\n");
+
+ color_man_cache_unref(cc);
+ return NULL;
+ }
+
+ cm_cache_list = g_list_append(cm_cache_list, cc);
+
+ return cc;
+}
+
+static void color_man_cache_free(ColorManCache *cc)
+{
+ if (!cc) return;
+
+ cm_cache_list = g_list_remove(cm_cache_list, cc);
+ color_man_cache_unref(cc);
+}
+
+static void color_man_cache_reset(void)
+{
+ while (cm_cache_list)
+ {
+ ColorManCache *cc;
+
+ cc = cm_cache_list->data;
+ color_man_cache_free(cc);
+ }
+}
+
+static ColorManCache *color_man_cache_find(ColorManProfileType in_type, const gchar *in_file,
+ ColorManProfileType out_type, const gchar *out_file,
+ gint has_alpha)
+{
+ GList *work;
+
+ work = cm_cache_list;
+ while (work)
+ {
+ ColorManCache *cc;
+ gint match = FALSE;
+
+ cc = work->data;
+ work = work->next;
+
+ if (cc->profile_in_type == in_type &&
+ cc->profile_out_type == out_type &&
+ cc->has_alpha == has_alpha)
+ {
+ match = TRUE;
+ }
+
+ if (match && cc->profile_in_type == COLOR_PROFILE_FILE)
+ {
+ match = (cc->profile_in_file && in_file &&
+ strcmp(cc->profile_in_file, in_file) == 0);
+ }
+ if (match && cc->profile_out_type == COLOR_PROFILE_FILE)
+ {
+ match = (cc->profile_out_file && out_file &&
+ strcmp(cc->profile_out_file, out_file) == 0);
+ }
+
+ if (match) return cc;
+ }
+
+ return NULL;
+}
+
+static ColorManCache *color_man_cache_get(ColorManProfileType in_type, const gchar *in_file,
+ ColorManProfileType out_type, const gchar *out_file,
+ gint has_alpha)
+{
+ ColorManCache *cc;
+
+ cc = color_man_cache_find(in_type, in_file, out_type, out_file, has_alpha);
+
+ if (!cc)
+ {
+ cc = color_man_cache_new(in_type, in_file, out_type, out_file, has_alpha);
+ }
+
+ return cc;
+}
+
+
+/*
+ *-------------------------------------------------------------------
+ * color manager
+ *-------------------------------------------------------------------
+ */
+
+static void color_man_done(ColorMan *cm, ColorManReturnType type)
+{
+ if (cm->func_done)
+ {
+ cm->func_done(cm, type, cm->func_done_data);
+ }
+}
+
+static void color_man_correct_region(ColorMan *cm, gint x, gint y, gint w, gint h,
+ gint pixbuf_width, gint pixbuf_height)
+{
+ ColorManCache *cc;
+ guchar *pix;
+ gint rs;
+ gint i;
+
+ cc = cm->profile;
+
+ pix = gdk_pixbuf_get_pixels(cm->pixbuf);
+ rs = gdk_pixbuf_get_rowstride(cm->pixbuf);
+
+ w = MIN(w, pixbuf_width - x);
+ h = MIN(h, pixbuf_height - y);
+
+ pix += x * ((cc->has_alpha) ? 4 : 3);
+ for (i = 0; i < h; i++)
+ {
+ guchar *pbuf;
+
+ pbuf = pix + ((y + i) * rs);
+ cmsDoTransform(cc->transform, pbuf, pbuf, w);
+ }
+
+ image_area_changed(cm->imd, x, y, w, h);
+}
+
+static gint color_man_idle_cb(gpointer data)
+{
+ ColorMan *cm = data;
+ gint width, height;
+ gint rh;
+
+ if (cm->pixbuf != image_get_pixbuf(cm->imd))
+ {
+ cm->idle_id = -1;
+ color_man_done(cm, COLOR_RETURN_IMAGE_CHANGED);
+ return FALSE;
+ }
+
+ width = gdk_pixbuf_get_width(cm->pixbuf);
+ height = gdk_pixbuf_get_height(cm->pixbuf);
+
+ if (cm->row > height)
+ {
+ cm->idle_id = -1;
+ color_man_done(cm, COLOR_RETURN_SUCCESS);
+ return FALSE;
+ }
+
+ rh = COLOR_MAN_CHUNK_SIZE / width + 1;
+ color_man_correct_region(cm, 0, cm->row, width, rh, width, height);
+ cm->row += rh;
+
+ return TRUE;
+}
+
+ColorMan *color_man_new(ImageWindow *imd,
+ ColorManProfileType input_type, const gchar *input_file,
+ ColorManProfileType screen_type, const gchar *screen_file,
+ ColorManDoneFunc done_func, gpointer done_data)
+{
+ ColorMan *cm;
+ GdkPixbuf *pixbuf;
+ gint has_alpha;
+
+ if (!imd) return NULL;
+ if (input_type == COLOR_PROFILE_NONE || screen_type == COLOR_PROFILE_NONE) return NULL;
+
+ pixbuf = image_get_pixbuf(imd);
+ if (!pixbuf) return NULL;
+
+ cm = g_new0(ColorMan, 1);
+ cm->imd = imd;
+ cm->pixbuf = pixbuf;
+ cm->row = 0;
+ cm->idle_id = -1;
+
+ cm->func_done = done_func;
+ cm->func_done_data = done_data;
+
+ has_alpha = gdk_pixbuf_get_has_alpha(pixbuf);
+ cm->profile = color_man_cache_get(input_type, input_file, screen_type, screen_file, has_alpha);
+ if (!cm->profile)
+ {
+ color_man_free(cm);
+ return NULL;
+ }
+
+ color_man_cache_ref(cm->profile);
+
+ cm->idle_id = g_idle_add(color_man_idle_cb, cm);
+
+ return cm;
+}
+
+void color_man_free(ColorMan *cm)
+{
+ if (!cm) return;
+
+ if (cm->idle_id != -1) g_source_remove(cm->idle_id);
+
+ color_man_cache_unref(cm->profile);
+
+ g_free(cm);
+}
+
+void color_man_update(void)
+{
+ color_man_cache_reset();
+}
+
+#else
+/*** color support not enabled ***/
+
+
+ColorMan *color_man_new(ImageWindow *imd,
+ ColorManProfileType input_type, const gchar *input_file,
+ ColorManProfileType screen_type, const gchar *screen_file,
+ ColorManDoneFunc don_func, gpointer done_data)
+{
+ /* no op */
+ return NULL;
+}
+
+void color_man_free(ColorMan *cm)
+{
+ /* no op */
+}
+
+void color_man_update(void)
+{
+ /* no op */
+}
+
+
+#endif
+
+
projects / geeqie.git / commitdiff