[gimp/pippin/linear-is-the-new-black: 7/11] png: add a combo-box for specifying png bitdepth/variant
- From: Øyvind Kolås <ok src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/pippin/linear-is-the-new-black: 7/11] png: add a combo-box for specifying png bitdepth/variant
- Date: Mon, 9 Jan 2017 13:17:34 +0000 (UTC)
commit 0f7cd9f8b2ccd1043744a6bbaff305cfaded7856
Author: Øyvind Kolås <pippin gimp org>
Date: Fri Dec 30 14:07:05 2016 +0100
png: add a combo-box for specifying png bitdepth/variant
When working in high bitdepth, manually changing precision to 8bit or 16bit is
an extraenous step, this adds a conversion step - but doesn't permit dithering
- and also doesn't permit using the palette modes of PNG. However it makes
workflows with single precision linear floating point much more usable.
plug-ins/common/file-png.c | 281 +++++++++++++++++++++++++--------------
plug-ins/ui/plug-in-file-png.ui | 67 ++++++---
2 files changed, 229 insertions(+), 119 deletions(-)
---
diff --git a/plug-ins/common/file-png.c b/plug-ins/common/file-png.c
index 7aa5466..1b1a94e 100644
--- a/plug-ins/common/file-png.c
+++ b/plug-ins/common/file-png.c
@@ -77,6 +77,18 @@
* Structures...
*/
+typedef enum _PngExportformat {
+ PNG_FORMAT_AUTO = 0,
+ PNG_FORMAT_RGB8,
+ PNG_FORMAT_GRAY8,
+ PNG_FORMAT_RGBA8,
+ PNG_FORMAT_GRAYA8,
+ PNG_FORMAT_RGB16,
+ PNG_FORMAT_GRAY16,
+ PNG_FORMAT_RGBA16,
+ PNG_FORMAT_GRAYA16
+} PngExportFormat;
+
typedef struct
{
gboolean interlaced;
@@ -92,6 +104,7 @@ typedef struct
gboolean save_xmp;
gboolean save_iptc;
gboolean save_thumbnail;
+ PngExportFormat export_format;
}
PngSaveVals;
@@ -106,6 +119,7 @@ typedef struct
GtkWidget *phys;
GtkWidget *time;
GtkWidget *comment;
+ GtkWidget *pixelformat;
GtkWidget *save_transp_pixels;
GtkAdjustment *compression_level;
GtkWidget *save_exif;
@@ -201,7 +215,8 @@ static const PngSaveVals defaults =
TRUE, /* save exif */
TRUE, /* save xmp */
TRUE, /* save iptc */
- TRUE /* save thumbnail */
+ TRUE, /* save thumbnail */
+ PNG_FORMAT_AUTO
};
static PngSaveVals pngvals;
@@ -1564,103 +1579,153 @@ save_image (const gchar *filename,
for (i = 0; i < 256; i++)
remap[i] = i;
- /*
- * Set color type and remember bytes per pixel count
- */
-
- switch (type)
+ if (pngvals.export_format == PNG_FORMAT_AUTO)
{
- case GIMP_RGB_IMAGE:
- color_type = PNG_COLOR_TYPE_RGB;
- if (bit_depth == 8)
- {
- if (linear)
- file_format = babl_format ("RGB u8");
- else
- file_format = babl_format ("R'G'B' u8");
- }
- else
- {
- if (linear)
- file_format = babl_format ("RGB u16");
- else
- file_format = babl_format ("R'G'B' u16");
- }
- break;
-
- case GIMP_RGBA_IMAGE:
- color_type = PNG_COLOR_TYPE_RGB_ALPHA;
- if (bit_depth == 8)
- {
- if (linear)
- file_format = babl_format ("RGBA u8");
- else
- file_format = babl_format ("R'G'B'A u8");
- }
- else
- {
- if (linear)
- file_format = babl_format ("RGBA u16");
- else
- file_format = babl_format ("R'G'B'A u16");
- }
- break;
-
- case GIMP_GRAY_IMAGE:
- color_type = PNG_COLOR_TYPE_GRAY;
- if (bit_depth == 8)
- {
- if (linear)
- file_format = babl_format ("Y u8");
- else
- file_format = babl_format ("Y' u8");
- }
- else
- {
- if (linear)
- file_format = babl_format ("Y u16");
- else
- file_format = babl_format ("Y' u16");
- }
- break;
-
- case GIMP_GRAYA_IMAGE:
- color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
- if (bit_depth == 8)
- {
- if (linear)
- file_format = babl_format ("YA u8");
- else
- file_format = babl_format ("Y'A u8");
- }
- else
- {
- if (linear)
- file_format = babl_format ("YA u16");
- else
- file_format = babl_format ("Y'A u16");
- }
- break;
-
- case GIMP_INDEXED_IMAGE:
- color_type = PNG_COLOR_TYPE_PALETTE;
- file_format = gimp_drawable_get_format (drawable_ID);
- pngg.has_plte = TRUE;
- pngg.palette = (png_colorp) gimp_image_get_colormap (image_ID,
- &pngg.num_palette);
- bit_depth = get_bit_depth_for_palette (pngg.num_palette);
- break;
-
- case GIMP_INDEXEDA_IMAGE:
- color_type = PNG_COLOR_TYPE_PALETTE;
- file_format = gimp_drawable_get_format (drawable_ID);
- /* fix up transparency */
- bit_depth = respin_cmap (pp, info, remap, image_ID, drawable_ID);
- break;
-
- default:
- g_set_error (error, 0, 0, "Image type can't be exported as PNG");
- return FALSE;
+ /*
+ * Set color type and remember bytes per pixel count
+ */
+
+ switch (type)
+ {
+ case GIMP_RGB_IMAGE:
+ color_type = PNG_COLOR_TYPE_RGB;
+ if (bit_depth == 8)
+ {
+ if (linear)
+ file_format = babl_format ("RGB u8");
+ else
+ file_format = babl_format ("R'G'B' u8");
+ }
+ else
+ {
+ if (linear)
+ file_format = babl_format ("RGB u16");
+ else
+ file_format = babl_format ("R'G'B' u16");
+ }
+ break;
+
+ case GIMP_RGBA_IMAGE:
+ color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+ if (bit_depth == 8)
+ {
+ if (linear)
+ file_format = babl_format ("RGBA u8");
+ else
+ file_format = babl_format ("R'G'B'A u8");
+ }
+ else
+ {
+ if (linear)
+ file_format = babl_format ("RGBA u16");
+ else
+ file_format = babl_format ("R'G'B'A u16");
+ }
+ break;
+
+ case GIMP_GRAY_IMAGE:
+ color_type = PNG_COLOR_TYPE_GRAY;
+ if (bit_depth == 8)
+ {
+ if (linear)
+ file_format = babl_format ("Y u8");
+ else
+ file_format = babl_format ("Y' u8");
+ }
+ else
+ {
+ if (linear)
+ file_format = babl_format ("Y u16");
+ else
+ file_format = babl_format ("Y' u16");
+ }
+ break;
+
+ case GIMP_GRAYA_IMAGE:
+ color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
+ if (bit_depth == 8)
+ {
+ if (linear)
+ file_format = babl_format ("YA u8");
+ else
+ file_format = babl_format ("Y'A u8");
+ }
+ else
+ {
+ if (linear)
+ file_format = babl_format ("YA u16");
+ else
+ file_format = babl_format ("Y'A u16");
+ }
+ break;
+
+ case GIMP_INDEXED_IMAGE:
+ color_type = PNG_COLOR_TYPE_PALETTE;
+ file_format = gimp_drawable_get_format (drawable_ID);
+ pngg.has_plte = TRUE;
+ pngg.palette = (png_colorp) gimp_image_get_colormap (image_ID,
+ &pngg.num_palette);
+ bit_depth = get_bit_depth_for_palette (pngg.num_palette);
+ break;
+
+ case GIMP_INDEXEDA_IMAGE:
+ color_type = PNG_COLOR_TYPE_PALETTE;
+ file_format = gimp_drawable_get_format (drawable_ID);
+ /* fix up transparency */
+ bit_depth = respin_cmap (pp, info, remap, image_ID, drawable_ID);
+ break;
+
+ default:
+ g_set_error (error, 0, 0, "Image type can't be exported as PNG");
+ return FALSE;
+ }
+ }
+ else
+ {
+ switch (pngvals.export_format)
+ {
+ case PNG_FORMAT_RGB8:
+ color_type = PNG_COLOR_TYPE_RGB;
+ file_format = babl_format ("R'G'B' u8");
+ bit_depth = 8;
+ break;
+ case PNG_FORMAT_GRAY8:
+ color_type = PNG_COLOR_TYPE_GRAY;
+ file_format = babl_format ("Y' u8");
+ bit_depth = 8;
+ break;
+ case PNG_FORMAT_AUTO: // shut up gcc
+ case PNG_FORMAT_RGBA8:
+ color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+ file_format = babl_format ("R'G'B'A u8");
+ bit_depth = 8;
+ break;
+ case PNG_FORMAT_GRAYA8:
+ color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
+ file_format = babl_format ("Y'A u8");
+ bit_depth = 8;
+ break;
+ case PNG_FORMAT_RGB16:
+ color_type = PNG_COLOR_TYPE_RGB;
+ file_format = babl_format ("R'G'B' u16");
+ bit_depth = 16;
+ break;
+ case PNG_FORMAT_GRAY16:
+ color_type = PNG_COLOR_TYPE_GRAY;
+ file_format = babl_format ("Y' u16");
+ bit_depth = 16;
+ break;
+ case PNG_FORMAT_RGBA16:
+ color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+ file_format = babl_format ("R'G'B'A u16");
+ bit_depth = 16;
+ break;
+ case PNG_FORMAT_GRAYA16:
+ color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
+ file_format = babl_format ("Y'A u16");
+ bit_depth = 16;
+ break;
+ }
}
bpp = babl_format_get_bytes_per_pixel (file_format);
@@ -2234,6 +2299,13 @@ toggle_button_init (GtkBuilder *builder,
return toggle;
}
+static void pixformat_changed (GtkWidget *widget,
+ void *foo)
+{
+ PngExportFormat *ep = foo;
+ *ep = gtk_combo_box_get_active (GTK_COMBO_BOX (widget));
+}
+
static gboolean
save_dialog (gint32 image_ID,
gboolean alpha)
@@ -2333,6 +2405,21 @@ save_dialog (gint32 image_ID,
G_CALLBACK (gimp_int_adjustment_update),
&pngvals.compression_level);
+ /* Compression level scale */
+ pg.pixelformat =
+ GTK_WIDGET (gtk_builder_get_object (builder, "pixelformat-combo"));
+ gtk_combo_box_set_active (GTK_COMBO_BOX (pg.pixelformat), pngvals.export_format);
+ g_signal_connect (pg.pixelformat, "changed",
+ G_CALLBACK (pixformat_changed),
+ &pngvals.export_format);
+
+#if 0
+ gtk_adjustment_set_value (pg.compression_level, pngvals.compression_level);
+ g_signal_connect (pg.compression_level, "value-changed",
+ G_CALLBACK (gimp_int_adjustment_update),
+ &pngvals.compression_level);
+#endif
+
/* Load/save defaults buttons */
g_signal_connect_swapped (gtk_builder_get_object (builder, "load-defaults"),
"clicked",
diff --git a/plug-ins/ui/plug-in-file-png.ui b/plug-ins/ui/plug-in-file-png.ui
index 9fcbd68..5736ca5 100644
--- a/plug-ins/ui/plug-in-file-png.ui
+++ b/plug-ins/ui/plug-in-file-png.ui
@@ -12,7 +12,7 @@
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="border_width">12</property>
- <property name="n_rows">11</property>
+ <property name="n_rows">12</property>
<property name="n_columns">3</property>
<property name="column_spacing">6</property>
<property name="row_spacing">6</property>
@@ -143,21 +143,6 @@
</packing>
</child>
<child>
- <object class="GtkLabel" id="compression-level-label">
- <property name="visible">True</property>
- <property name="can_focus">False</property>
- <property name="xalign">0</property>
- <property name="label" translatable="yes">Co_mpression level:</property>
- <property name="use_underline">True</property>
- <property name="mnemonic_widget">compression-level-spin</property>
- </object>
- <packing>
- <property name="top_attach">8</property>
- <property name="bottom_attach">9</property>
- <property name="x_options"/>
- </packing>
- </child>
- <child>
<object class="GtkHScale" id="compression-level-scale">
<property name="visible">True</property>
<property name="can_focus">True</property>
@@ -167,8 +152,8 @@
<packing>
<property name="left_attach">1</property>
<property name="right_attach">2</property>
- <property name="top_attach">8</property>
- <property name="bottom_attach">9</property>
+ <property name="top_attach">9</property>
+ <property name="bottom_attach">10</property>
</packing>
</child>
<child>
@@ -186,8 +171,8 @@
<packing>
<property name="left_attach">2</property>
<property name="right_attach">3</property>
- <property name="top_attach">8</property>
- <property name="bottom_attach">9</property>
+ <property name="top_attach">9</property>
+ <property name="bottom_attach">10</property>
<property name="x_options"/>
</packing>
</child>
@@ -228,8 +213,8 @@
</object>
<packing>
<property name="right_attach">3</property>
- <property name="top_attach">10</property>
- <property name="bottom_attach">11</property>
+ <property name="top_attach">11</property>
+ <property name="bottom_attach">12</property>
</packing>
</child>
<child>
@@ -316,8 +301,46 @@
</object>
<packing>
<property name="right_attach">3</property>
+ <property name="top_attach">10</property>
+ <property name="bottom_attach">11</property>
+ </packing>
+ </child>
+ <child>
+ <object class="GtkLabel" id="compression-level-label">
+ <property name="visible">True</property>
+ <property name="can_focus">False</property>
+ <property name="label" translatable="yes">Co_mpression level:</property>
+ <property name="use_underline">True</property>
+ <property name="mnemonic_widget">compression-level-spin</property>
+ <property name="xalign">0</property>
+ </object>
+ <packing>
<property name="top_attach">9</property>
<property name="bottom_attach">10</property>
+ <property name="x_options"/>
+ </packing>
+ </child>
+ <child>
+ <object class="GtkComboBoxText" id="pixelformat-combo">
+ <property name="visible">True</property>
+ <property name="can_focus">False</property>
+ <items>
+ <item translatable="yes">automatic pixelformat</item>
+ <item translatable="yes">8bpc RGB</item>
+ <item translatable="yes">8bpc GRAY</item>
+ <item translatable="yes">8bpc RGBA</item>
+ <item translatable="yes">8bpc GRAYA</item>
+ <item translatable="yes">16bpc RGB</item>
+ <item translatable="yes">16bpc GRAY</item>
+ <item translatable="yes">16bpc RGBA</item>
+ <item translatable="yes">16bpc GRAYA</item>
+ </items>
+ </object>
+ <packing>
+ <property name="left_attach">0</property>
+ <property name="right_attach">3</property>
+ <property name="top_attach">8</property>
+ <property name="bottom_attach">9</property>
</packing>
</child>
</object>
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