[mutter] background: drop saturation and blur effects
- From: Ray Strode <halfline src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [mutter] background: drop saturation and blur effects
- Date: Tue, 26 Mar 2013 20:58:40 +0000 (UTC)
commit 0e58906194c0fab0b8dc8e14fcd7f4c289c28481
Author: Ray Strode <rstrode redhat com>
Date: Mon Mar 25 13:27:16 2013 -0400
background: drop saturation and blur effects
We don't use them anymore, so drop them.
https://bugzilla.gnome.org/show_bug.cgi?id=696157
src/compositor/meta-background.c | 145 +-------------------------------------
src/meta/meta-background.h | 6 +--
2 files changed, 3 insertions(+), 148 deletions(-)
---
diff --git a/src/compositor/meta-background.c b/src/compositor/meta-background.c
index 7d8f64c..4d8f1fb 100644
--- a/src/compositor/meta-background.c
+++ b/src/compositor/meta-background.c
@@ -39,41 +39,6 @@
#include <meta/meta-background.h>
#include "meta-background-actor-private.h"
-#define TEXTURE_LOOKUP_SHADER_DECLARATIONS \
-"uniform vec2 pixel_step;\n" \
-"vec4 apply_blur(in sampler2D texture, in vec2 coordinates) {\n" \
-" vec4 texel;\n" \
-" texel = texture2D(texture, coordinates.st);\n" \
-" texel += texture2D(texture, coordinates.st + pixel_step * vec2(-1.0, -1.0));\n"\
-" texel += texture2D(texture, coordinates.st + pixel_step * vec2( 0.0, -1.0));\n"\
-" texel += texture2D(texture, coordinates.st + pixel_step * vec2(+1.0, -1.0));\n"\
-" texel += texture2D(texture, coordinates.st + pixel_step * vec2(-1.0, 0.0));\n"\
-" texel += texture2D(texture, coordinates.st + pixel_step * vec2(+1.0, 0.0));\n"\
-" texel += texture2D(texture, coordinates.st + pixel_step * vec2(-1.0, +1.0));\n"\
-" texel += texture2D(texture, coordinates.st + pixel_step * vec2( 0.0, +1.0));\n"\
-" texel += texture2D(texture, coordinates.st + pixel_step * vec2(+1.0, +1.0));\n"\
-" texel /= 9.0;\n" \
-" return texel;\n" \
-"}\n" \
-"uniform float saturation;\n" \
-"vec3 desaturate(const vec3 color)\n" \
-"{\n" \
-" const vec3 gray_conv = vec3(0.299, 0.587, 0.114);\n" \
-" vec3 gray = vec3(dot(gray_conv, color));\n" \
-" return vec3(mix(color.rgb, gray, 1.0 - saturation));\n" \
-"}\n" \
-
-/* Used when we don't have a blur, as the texel is going to be junk
- * unless we set something to it. */
-#define DESATURATE_PRELUDE \
-"cogl_texel = texture2D(cogl_sampler, cogl_tex_coord.st);\n"
-
-#define DESATURATE_CODE \
-"cogl_texel.rgb = desaturate(cogl_texel.rgb);\n"
-
-#define BLUR_CODE \
-"cogl_texel = apply_blur(cogl_sampler, cogl_tex_coord.st);\n"
-
#define FRAGMENT_SHADER_DECLARATIONS \
"uniform vec2 texture_scale;\n" \
"uniform vec2 actor_size;\n" \
@@ -116,7 +81,6 @@ struct _MetaBackgroundPrivate
float brightness;
float vignette_sharpness;
- float saturation;
};
enum
@@ -126,7 +90,6 @@ enum
PROP_EFFECTS,
PROP_BRIGHTNESS,
PROP_VIGNETTE_SHARPNESS,
- PROP_SATURATION
};
static void clutter_content_iface_init (ClutterContentIface *iface);
@@ -368,25 +331,6 @@ clip_region_to_actor_box (cairo_region_t *region,
}
static void
-set_blur_parameters (MetaBackground *self,
- ClutterActorBox *actor_box)
-{
- MetaBackgroundPrivate *priv = self->priv;
- float pixel_step[2];
-
- if (!(priv->effects & META_BACKGROUND_EFFECTS_BLUR))
- return;
-
- pixel_step[0] = 1.0 / (actor_box->x2 - actor_box->x1);
- pixel_step[1] = 1.0 / (actor_box->y2 - actor_box->y1);
-
- cogl_pipeline_set_uniform_float (priv->pipeline,
- cogl_pipeline_get_uniform_location (priv->pipeline,
- "pixel_step"),
- 2, 1, pixel_step);
-}
-
-static void
set_vignette_parameters (MetaBackground *self,
ClutterActorBox *actor_box,
cairo_rectangle_int_t *texture_area,
@@ -447,8 +391,6 @@ meta_background_paint_content (ClutterContent *content,
clutter_actor_get_content_box (actor, &actor_box);
- set_blur_parameters (self, &actor_box);
-
/* First figure out where on the monitor the texture is supposed to be painted.
* If the actor is not the size of the monitor, this function makes sure to scale
* everything down to fit in the actor.
@@ -590,63 +532,6 @@ set_vignette_sharpness (MetaBackground *self,
}
static void
-set_saturation (MetaBackground *self,
- gfloat saturation)
-{
- MetaBackgroundPrivate *priv = self->priv;
-
- if (priv->saturation == saturation)
- return;
-
- priv->saturation = saturation;
-
- ensure_pipeline (self);
-
- cogl_pipeline_set_uniform_1f (priv->pipeline,
- cogl_pipeline_get_uniform_location (priv->pipeline,
- "saturation"),
- priv->saturation);
-
-
- clutter_content_invalidate (CLUTTER_CONTENT (self));
-
- g_object_notify (G_OBJECT (self), "saturation");
-}
-
-static void
-add_texture_lookup_shader (MetaBackground *self)
-{
- MetaBackgroundPrivate *priv = self->priv;
- CoglSnippet *snippet;
- const char *code = NULL;
-
- if ((priv->effects & META_BACKGROUND_EFFECTS_BLUR) &&
- (priv->effects & META_BACKGROUND_EFFECTS_DESATURATE))
- code = BLUR_CODE "\n" DESATURATE_CODE;
- else if (priv->effects & META_BACKGROUND_EFFECTS_BLUR)
- code = BLUR_CODE;
- else if (priv->effects & META_BACKGROUND_EFFECTS_DESATURATE)
- code = DESATURATE_PRELUDE "\n" DESATURATE_CODE;
- else
- return;
-
- ensure_pipeline (self);
-
- snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_TEXTURE_LOOKUP,
- TEXTURE_LOOKUP_SHADER_DECLARATIONS,
- NULL);
- cogl_snippet_set_replace (snippet, code);
- cogl_pipeline_add_layer_snippet (priv->pipeline, 0, snippet);
- cogl_object_unref (snippet);
-
- if (priv->effects & META_BACKGROUND_EFFECTS_DESATURATE)
- cogl_pipeline_set_uniform_1f (priv->pipeline,
- cogl_pipeline_get_uniform_location (priv->pipeline,
- "saturation"),
- priv->saturation);
-}
-
-static void
add_vignette (MetaBackground *self)
{
MetaBackgroundPrivate *priv = self->priv;
@@ -677,10 +562,6 @@ set_effects (MetaBackground *self,
priv->effects = effects;
- if ((priv->effects & META_BACKGROUND_EFFECTS_BLUR) ||
- (priv->effects & META_BACKGROUND_EFFECTS_DESATURATE))
- add_texture_lookup_shader (self);
-
if ((priv->effects & META_BACKGROUND_EFFECTS_VIGNETTE))
add_vignette (self);
@@ -713,9 +594,6 @@ meta_background_set_property (GObject *object,
case PROP_VIGNETTE_SHARPNESS:
set_vignette_sharpness (self, g_value_get_float (value));
break;
- case PROP_SATURATION:
- set_saturation (self, g_value_get_float (value));
- break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@@ -747,9 +625,6 @@ meta_background_get_property (GObject *object,
case PROP_VIGNETTE_SHARPNESS:
g_value_set_float (value, priv->vignette_sharpness);
break;
- case PROP_SATURATION:
- g_value_set_float (value, priv->saturation);
- break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@@ -804,17 +679,9 @@ meta_background_class_init (MetaBackgroundClass *klass)
G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
g_object_class_install_property (object_class, PROP_VIGNETTE_SHARPNESS, param_spec);
- param_spec = g_param_spec_float ("saturation",
- "saturation",
- "Values less than 1.0 grays background",
- 0.0, 1.0,
- 1.0,
- G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
- g_object_class_install_property (object_class, PROP_SATURATION, param_spec);
-
param_spec = g_param_spec_flags ("effects",
"Effects",
- "Set to alter saturation, to blur, etc",
+ "Set to enable vignette",
meta_background_effects_get_type (),
META_BACKGROUND_EFFECTS_NONE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
@@ -1256,15 +1123,11 @@ meta_background_copy (MetaBackground *self,
background->priv->pipeline = cogl_pipeline_copy (self->priv->pipeline);
background->priv->texture = cogl_object_ref (self->priv->texture);
background->priv->style = self->priv->style;
- background->priv->saturation = self->priv->saturation;
if (effects != self->priv->effects)
{
set_effects (background, effects);
- if (effects & META_BACKGROUND_EFFECTS_DESATURATE)
- set_saturation (background, self->priv->saturation);
-
if (effects & META_BACKGROUND_EFFECTS_VIGNETTE)
{
set_brightness (background, self->priv->brightness);
@@ -1285,9 +1148,6 @@ meta_background_copy (MetaBackground *self,
set_style (background, self->priv->style);
set_effects (background, effects);
- if (effects & META_BACKGROUND_EFFECTS_DESATURATE)
- set_saturation (background, self->priv->saturation);
-
if (effects & META_BACKGROUND_EFFECTS_VIGNETTE)
{
set_brightness (background, self->priv->brightness);
@@ -1309,8 +1169,7 @@ meta_background_copy (MetaBackground *self,
* The returned object should be set on a #MetaBackgroundActor with
* clutter_actor_set_content().
*
- * The background may be desaturated, blurred, or given a vignette depending
- * on @effects.
+ * The background may be given a vignette by setting @effects
*
* Return value: the newly created background content
*/
diff --git a/src/meta/meta-background.h b/src/meta/meta-background.h
index 62d60ca..0295d4e 100644
--- a/src/meta/meta-background.h
+++ b/src/meta/meta-background.h
@@ -53,8 +53,6 @@ typedef struct _MetaBackgroundPrivate MetaBackgroundPrivate;
/**
* MetaBackgroundEffects:
* @META_BACKGROUND_EFFECTS_NONE: No effect
- * @META_BACKGROUND_EFFECTS_DESATURATE: Desaturate
- * @META_BACKGROUND_EFFECTS_BLUR: Blur
* @META_BACKGROUND_EFFECTS_VIGNETTE: Vignette
*
* Which effects to enable on the background
@@ -63,9 +61,7 @@ typedef struct _MetaBackgroundPrivate MetaBackgroundPrivate;
typedef enum
{
META_BACKGROUND_EFFECTS_NONE = 0,
- META_BACKGROUND_EFFECTS_DESATURATE = 1 << 0,
- META_BACKGROUND_EFFECTS_BLUR = 1 << 1,
- META_BACKGROUND_EFFECTS_VIGNETTE = 1 << 2,
+ META_BACKGROUND_EFFECTS_VIGNETTE = 1 << 1,
} MetaBackgroundEffects;
struct _MetaBackgroundClass
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