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app: add gimp_image_get_preview_format() 

Add an internal gimp_image_get_preview_format(), which returns the
format to use for preview buffers, and use it in both
gimpimage-preview and GimpImageViewable, to reduce duplication.
This commit is contained in:
Ell 2019-11-04 12:42:34 +02:00
parent 4374fc3ff0
commit 74009c8b1e
3 changed files with 46 additions and 36 deletions
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29
app/core/gimpimage-preview.c
View File

@ -37,6 +37,26 @@
#include "gimptempbuf.h"
const Babl *
gimp_image_get_preview_format (GimpImage *image)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
switch (gimp_image_get_base_type (image))
{
case GIMP_RGB:
case GIMP_GRAY:
return gimp_babl_format_change_component_type (
gimp_projectable_get_format (GIMP_PROJECTABLE (image)),
GIMP_COMPONENT_TYPE_U8);
case GIMP_INDEXED:
return babl_format ("R'G'B'A u8");
}
g_return_val_if_reached (NULL);
}
void
gimp_image_get_preview_size (GimpViewable *viewable,
gint size,
@ -107,7 +127,6 @@ gimp_image_get_new_preview (GimpViewable *viewable,
{
GimpImage *image = GIMP_IMAGE (viewable);
const Babl *format;
GimpTRCType trc;
GimpTempBuf *buf;
gdouble scale_x;
gdouble scale_y;
@ -115,13 +134,7 @@ gimp_image_get_new_preview (GimpViewable *viewable,
scale_x = (gdouble) width / (gdouble) gimp_image_get_width (image);
scale_y = (gdouble) height / (gdouble) gimp_image_get_height (image);
format = gimp_projectable_get_format (GIMP_PROJECTABLE (image));
trc = gimp_babl_format_get_trc (format);
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
gimp_babl_precision (GIMP_COMPONENT_TYPE_U8, trc),
babl_format_has_alpha (format),
babl_format_get_space (format));
format = gimp_image_get_preview_format (image);
buf = gimp_temp_buf_new (width, height, format);

43
app/core/gimpimage-preview.h
View File

@ -19,30 +19,33 @@
#define __GIMP_IMAGE_PREVIEW_H__
const Babl * gimp_image_get_preview_format (GimpImage *image);
/*
* virtual functions of GimpImage -- don't call directly
*/
void gimp_image_get_preview_size (GimpViewable *viewable,
gint size,
gboolean is_popup,
gboolean dot_for_dot,
gint *width,
gint *height);
gboolean gimp_image_get_popup_size (GimpViewable *viewable,
gint width,
gint height,
gboolean dot_for_dot,
gint *popup_width,
gint *popup_height);
GimpTempBuf * gimp_image_get_new_preview (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height);
GdkPixbuf * gimp_image_get_new_pixbuf (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height);
void gimp_image_get_preview_size (GimpViewable *viewable,
gint size,
gboolean is_popup,
gboolean dot_for_dot,
gint *width,
gint *height);
gboolean gimp_image_get_popup_size (GimpViewable *viewable,
gint width,
gint height,
gboolean dot_for_dot,
gint *popup_width,
gint *popup_height);
GimpTempBuf * gimp_image_get_new_preview (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height);
GdkPixbuf * gimp_image_get_new_pixbuf (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height);
#endif /* __GIMP_IMAGE_PREVIEW_H__ */

10
app/core/gimpimageviewable.c
View File

@ -34,6 +34,7 @@
#include "gimpimage.h"
#include "gimpimage-color-profile.h"
#include "gimpimage-preview.h"
#include "gimpimageviewable.h"
#include "gimppickable.h"
#include "gimpprojectable.h"
@ -317,7 +318,6 @@ gimp_image_viewable_get_new_preview (GimpViewable *viewable,
GimpPickable *pickable;
const Babl *format;
GeglRectangle bounding_box;
GimpTRCType trc;
GimpTempBuf *buf;
gdouble scale_x;
gdouble scale_y;
@ -335,13 +335,7 @@ gimp_image_viewable_get_new_preview (GimpViewable *viewable,
scale = MIN (scale_x, scale_y);
format = gimp_projectable_get_format (GIMP_PROJECTABLE (image));
trc = gimp_babl_format_get_trc (format);
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
gimp_babl_precision (GIMP_COMPONENT_TYPE_U8, trc),
babl_format_has_alpha (format),
babl_format_get_space (format));
format = gimp_image_get_preview_format (image);
buf = gimp_temp_buf_new (width, height, format);