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rna function Image.scale(w, h), useful for utility functions to open/scale/save images.

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This commit is contained in:
Campbell Barton
2012-05-17 15:26:11 +00:00
parent bb2b1694ab
commit 2c23bb8389
3 changed files with 29 additions and 0 deletions
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3
source/blender/blenkernel/BKE_image.h
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@@ -183,6 +183,9 @@ struct Image *BKE_image_copy(struct Image *ima);
/* merge source into dest, and free source */
void BKE_image_merge(struct Image *dest, struct Image *source);
/* scale the image */
void BKE_image_scale(struct Image *image, int width, int height);
/* check if texture has alpha (depth=32) */
int BKE_image_has_alpha(struct Image *image);

14
source/blender/blenkernel/intern/image.c
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@@ -505,6 +505,20 @@ void BKE_image_merge(Image *dest, Image *source)
}
}
/* note, we could be clever and scale all imbuf's but since some are mipmaps its not so simple */
void BKE_image_scale(Image *image, int width, int height)
{
ImBuf *ibuf;
void *lock;
ibuf = BKE_image_acquire_ibuf(image, NULL, &lock);
IMB_scaleImBuf(ibuf, width, height);
ibuf->userflags |= IB_BITMAPDIRTY;
BKE_image_release_ibuf(image, lock);
}
Image *BKE_image_load(const char *filepath)
{
Image *ima;

12
source/blender/makesrna/intern/rna_image_api.c
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@@ -178,6 +178,11 @@ static void rna_Image_update(Image *image, ReportList *reports)
IMB_rect_from_float(ibuf);
}
static void rna_Image_scale(Image *image, int width, int height)
{
BKE_image_scale(image, width, height);
}
static int rna_Image_gl_load(Image *image, ReportList *reports, int filter, int mag)
{
ImBuf *ibuf;
@@ -262,6 +267,13 @@ void RNA_api_image(StructRNA *srna)
RNA_def_function_ui_description(func, "Update the display image from the floating point buffer");
RNA_def_function_flag(func, FUNC_USE_REPORTS);
func = RNA_def_function(srna, "scale", "rna_Image_scale");
RNA_def_function_ui_description(func, "Scale the image in pixels");
parm = RNA_def_int(func, "width", 0, 1, 10000, "", "Width", 1, 10000);
RNA_def_property_flag(parm, PROP_REQUIRED);
parm = RNA_def_int(func, "height", 0, 1, 10000, "", "Height", 1, 10000);
RNA_def_property_flag(parm, PROP_REQUIRED);
func = RNA_def_function(srna, "gl_load", "rna_Image_gl_load");
RNA_def_function_ui_description(func, "Load the image into OpenGL graphics memory");
RNA_def_function_flag(func, FUNC_USE_REPORTS);