[PATCH 6/6] image demo client: Add support for color management
Niels Ole Salscheider
niels_ole at salscheider-online.de
Mon Oct 13 10:40:51 PDT 2014
You can now use "C" to switch between the following modes:
- Assume sRGB input color space
- Assume that the input color space is the blending color space
- Attach a false-color ICC profile to the surface
Signed-off-by: Niels Ole Salscheider <niels_ole at salscheider-online.de>
---
clients/image.c | 273 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 273 insertions(+)
diff --git a/clients/image.c b/clients/image.c
index aee8112..0941125 100644
--- a/clients/image.c
+++ b/clients/image.c
@@ -36,12 +36,219 @@
#include <cairo.h>
#include <assert.h>
#include <linux/input.h>
+#include <sys/stat.h>
#include <wayland-client.h>
#include "window.h"
#include "../shared/cairo-util.h"
+#include "cms-client-protocol.h"
+
+const unsigned char icc_profile[798] =
+{
+ 0x00, 0x00, 0x03, 0x1e,
+ 0x6c, 0x63, 0x6d, 0x73,
+ 0x02, 0x30, 0x00, 0x00,
+ 0x6d, 0x6e, 0x74, 0x72,
+ 0x52, 0x47, 0x42, 0x20,
+ 0x58, 0x59, 0x5a, 0x20,
+ 0x07, 0xd8, 0x00, 0x05,
+ 0x00, 0x19, 0x00, 0x05,
+ 0x00, 0x34, 0x00, 0x33,
+ 0x61, 0x63, 0x73, 0x70,
+ 0x41, 0x50, 0x50, 0x4c,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x6c, 0x63, 0x6d, 0x73,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xf6, 0xd6,
+ 0x00, 0x01, 0x00, 0x00,
+ 0x00, 0x00, 0xd3, 0x2d,
+ 0x6c, 0x63, 0x6d, 0x73,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x0c,
+ 0x64, 0x6d, 0x6e, 0x64,
+ 0x00, 0x00, 0x01, 0x14,
+ 0x00, 0x00, 0x00, 0x6a,
+ 0x64, 0x65, 0x73, 0x63,
+ 0x00, 0x00, 0x01, 0x80,
+ 0x00, 0x00, 0x00, 0x66,
+ 0x64, 0x6d, 0x64, 0x64,
+ 0x00, 0x00, 0x01, 0xe8,
+ 0x00, 0x00, 0x00, 0x67,
+ 0x77, 0x74, 0x70, 0x74,
+ 0x00, 0x00, 0x02, 0x50,
+ 0x00, 0x00, 0x00, 0x14,
+ 0x72, 0x58, 0x59, 0x5a,
+ 0x00, 0x00, 0x02, 0x64,
+ 0x00, 0x00, 0x00, 0x14,
+ 0x62, 0x58, 0x59, 0x5a,
+ 0x00, 0x00, 0x02, 0x78,
+ 0x00, 0x00, 0x00, 0x14,
+ 0x67, 0x58, 0x59, 0x5a,
+ 0x00, 0x00, 0x02, 0x8c,
+ 0x00, 0x00, 0x00, 0x14,
+ 0x72, 0x54, 0x52, 0x43,
+ 0x00, 0x00, 0x02, 0xa0,
+ 0x00, 0x00, 0x00, 0x0e,
+ 0x67, 0x54, 0x52, 0x43,
+ 0x00, 0x00, 0x02, 0xb0,
+ 0x00, 0x00, 0x00, 0x0e,
+ 0x62, 0x54, 0x52, 0x43,
+ 0x00, 0x00, 0x02, 0xc0,
+ 0x00, 0x00, 0x00, 0x0e,
+ 0x63, 0x68, 0x72, 0x6d,
+ 0x00, 0x00, 0x02, 0xd0,
+ 0x00, 0x00, 0x00, 0x24,
+ 0x63, 0x70, 0x72, 0x74,
+ 0x00, 0x00, 0x02, 0xf4,
+ 0x00, 0x00, 0x00, 0x2a,
+ 0x64, 0x65, 0x73, 0x63,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x10,
+ 0x28, 0x6c, 0x63, 0x6d,
+ 0x73, 0x20, 0x69, 0x6e,
+ 0x74, 0x65, 0x72, 0x6e,
+ 0x61, 0x6c, 0x29, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x64, 0x65, 0x73, 0x63,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x0c,
+ 0x66, 0x61, 0x6b, 0x65,
+ 0x42, 0x52, 0x47, 0x2e,
+ 0x69, 0x63, 0x63, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x64, 0x65, 0x73, 0x63,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x0d,
+ 0x72, 0x67, 0x62, 0x20,
+ 0x62, 0x75, 0x69, 0x6c,
+ 0x74, 0x2d, 0x69, 0x6e,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x58, 0x59, 0x5a, 0x20,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xf3, 0x4f,
+ 0x00, 0x01, 0x00, 0x00,
+ 0x00, 0x01, 0x16, 0xc2,
+ 0x58, 0x59, 0x5a, 0x20,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x24, 0x9e,
+ 0x00, 0x00, 0x0f, 0x84,
+ 0x00, 0x00, 0xb6, 0xc2,
+ 0x58, 0x59, 0x5a, 0x20,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x62, 0x97,
+ 0x00, 0x00, 0xb7, 0x88,
+ 0x00, 0x00, 0x18, 0xda,
+ 0x58, 0x59, 0x5a, 0x20,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x6f, 0xa0,
+ 0x00, 0x00, 0x38, 0xf5,
+ 0x00, 0x00, 0x03, 0x90,
+ 0x63, 0x75, 0x72, 0x76,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x01,
+ 0x02, 0x33, 0x00, 0x00,
+ 0x63, 0x75, 0x72, 0x76,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x01,
+ 0x02, 0x33, 0x00, 0x00,
+ 0x63, 0x75, 0x72, 0x76,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x01,
+ 0x02, 0x33, 0x00, 0x00,
+ 0x63, 0x68, 0x72, 0x6d,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x03, 0x00, 0x00,
+ 0x00, 0x00, 0x26, 0x66,
+ 0x00, 0x00, 0x0f, 0x5c,
+ 0x00, 0x00, 0xa3, 0xd7,
+ 0x00, 0x00, 0x54, 0x7b,
+ 0x00, 0x00, 0x4c, 0xcd,
+ 0x00, 0x00, 0x99, 0x9a,
+ 0x74, 0x65, 0x78, 0x74,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x32, 0x30, 0x30, 0x38,
+ 0x20, 0x4b, 0x61, 0x69,
+ 0x2d, 0x55, 0x77, 0x65,
+ 0x20, 0x42, 0x65, 0x68,
+ 0x72, 0x6d, 0x61, 0x6e,
+ 0x6e, 0x2c, 0x20, 0x75,
+ 0x73, 0x65, 0x20, 0x66,
+ 0x72, 0x65, 0x65, 0x6c,
+ 0x79, 0x00
+};
+
struct image {
struct window *window;
struct widget *widget;
@@ -60,6 +267,12 @@ struct image {
bool initialized;
cairo_matrix_t matrix;
+
+ int color_mode;
+ struct wl_cms *cms;
+ struct wl_cms_colorspace *profile_colorspace;
+ struct wl_cms_colorspace *srgb_colorspace;
+ struct wl_cms_colorspace *blending_colorspace;
};
static double
@@ -305,6 +518,30 @@ key_handler(struct window *window, struct input *input, uint32_t time,
clamp_view(image);
window_schedule_redraw(image->window);
break;
+ case XKB_KEY_C:
+ if (image->cms) {
+ struct wl_surface *surface;
+ surface = window_get_wl_surface(image->window);
+
+ image->color_mode = (image->color_mode + 1) % 3;
+ switch (image->color_mode) {
+ case 0:
+ wl_cms_set_colorspace(image->cms, surface,
+ image->srgb_colorspace);
+ break;
+ case 1:
+ wl_cms_set_colorspace(image->cms, surface,
+ image->blending_colorspace);
+ break;
+ case 2:
+ wl_cms_set_colorspace(image->cms, surface,
+ image->profile_colorspace);
+ break;
+ }
+
+ window_schedule_redraw(image->window);
+ }
+ break;
}
}
@@ -353,12 +590,28 @@ close_handler(void *data)
free(image);
}
+static void
+global_handler(struct display *display, uint32_t name,
+ const char *interface, uint32_t version, void *data)
+{
+ struct image *image = data;
+
+ if (strcmp(interface, "wl_cms") == 0) {
+ image->cms =
+ display_bind(display, name,
+ &wl_cms_interface, 1);
+ }
+}
+
static struct image *
image_create(struct display *display, const char *filename,
int *image_counter)
{
struct image *image;
char *b, *copy, title[512];;
+ int fd;
+ FILE *profilefile;
+ char template[24];
image = zalloc(sizeof *image);
if (image == NULL)
@@ -401,6 +654,26 @@ image_create(struct display *display, const char *filename,
window_set_key_handler(image->window, key_handler);
widget_schedule_resize(image->widget, 500, 400);
+ display_set_user_data(display, image);
+ display_set_global_handler(display, global_handler);
+
+ if (image->cms) {
+ image->color_mode = 0;
+ image->srgb_colorspace = wl_cms_srgb_colorspace(image->cms);
+ image->blending_colorspace =
+ wl_cms_blending_colorspace(image->cms);
+
+ strncpy(template, "/tmp/weston-cms-XXXXXX", 24);
+ fd = mkstemp(template);
+ unlink(template);
+ profilefile = fdopen(fd, "w");
+ fwrite(icc_profile, sizeof(icc_profile), 1, profilefile);
+ rewind(profilefile);
+ image->profile_colorspace =
+ wl_cms_colorspace_from_fd(image->cms, fd);
+ close(fd);
+ }
+
return image;
}
--
2.1.2
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