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blender-archive/source/blender/python/api2_2x/Image.c
Joseph Gilbert dee16b9e3d * bug fix 
[ #4228 ] Blender.Image.Load(filename) loads only on the first loading
- Image.Load() will now reload the image buffer when a image of the same name is loaded again
- small textual change in render code
2006-05-26 15:28:04 +00:00

1260 lines
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/*
* $Id$
*
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* This is a new part of Blender.
*
* Contributor(s): Willian P. Germano, Campbell Barton, Joilnen B. Leite,
* Austin Benesh
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
#include "Image.h" /*This must come first */
#include "BDR_drawmesh.h" /* free_realtime_image */
#include "BKE_main.h"
#include "BKE_global.h"
#include "BKE_library.h"
#include "BKE_image.h"
#include "BIF_drawimage.h"
#include "BLI_blenlib.h"
#include "DNA_space_types.h" /* FILE_MAXDIR = 160 */
#include "IMB_imbuf_types.h" /* for the IB_rect define */
#include "BIF_gl.h"
#include "gen_utils.h"
#include "BKE_packedFile.h"
#include "DNA_packedFile_types.h"
#include "BKE_icons.h"
#include "IMB_imbuf.h"
/* used so we can get G.scene->r.cfra for getting the
current image frame, some images change frame if they are a sequence */
#include "DNA_scene_types.h"
/*****************************************************************************/
/* Python BPy_Image defaults: */
/*****************************************************************************/
#define EXPP_IMAGE_REP 1
#define EXPP_IMAGE_REP_MIN 1
#define EXPP_IMAGE_REP_MAX 16
/************************/
/*** The Image Module ***/
/************************/
/*****************************************************************************/
/* Python API function prototypes for the Image module. */
/*****************************************************************************/
static PyObject *M_Image_New( PyObject * self, PyObject * args );
static PyObject *M_Image_Get( PyObject * self, PyObject * args );
static PyObject *M_Image_GetCurrent( PyObject * self );
static PyObject *M_Image_Load( PyObject * self, PyObject * args );
/*****************************************************************************/
/* Python BPy_Image methods declarations: */
/*****************************************************************************/
static PyObject *Image_getName( BPy_Image * self );
static PyObject *Image_getFilename( BPy_Image * self );
static PyObject *Image_getSize( BPy_Image * self );
static PyObject *Image_getDepth( BPy_Image * self );
static PyObject *Image_getXRep( BPy_Image * self );
static PyObject *Image_getYRep( BPy_Image * self );
static PyObject *Image_getBindCode( BPy_Image * self );
static PyObject *Image_getStart( BPy_Image * self );
static PyObject *Image_getEnd( BPy_Image * self );
static PyObject *Image_getSpeed( BPy_Image * self );
static PyObject *Image_setName( BPy_Image * self, PyObject * args );
static PyObject *Image_setFilename( BPy_Image * self, PyObject * args );
static PyObject *Image_setXRep( BPy_Image * self, PyObject * args );
static PyObject *Image_setYRep( BPy_Image * self, PyObject * args );
static PyObject *Image_setStart( BPy_Image * self, PyObject * args );
static PyObject *Image_setEnd( BPy_Image * self, PyObject * args );
static PyObject *Image_setSpeed( BPy_Image * self, PyObject * args );
static PyObject *Image_reload( BPy_Image * self );
static PyObject *Image_glLoad( BPy_Image * self );
static PyObject *Image_glFree( BPy_Image * self );
static PyObject *Image_getPixelF( BPy_Image * self, PyObject * args );
static PyObject *Image_getPixelI( BPy_Image * self, PyObject * args );
static PyObject *Image_setPixelF( BPy_Image * self, PyObject * args );
static PyObject *Image_setPixelI( BPy_Image * self, PyObject * args );
static PyObject *Image_getMaxXY( BPy_Image * self );
static PyObject *Image_getMinXY( BPy_Image * self );
static PyObject *Image_save( BPy_Image * self );
static PyObject *Image_unpack( BPy_Image * self, PyObject * args );
static PyObject *Image_pack( BPy_Image * self );
/*****************************************************************************/
/* Python BPy_Image methods table: */
/*****************************************************************************/
static PyMethodDef BPy_Image_methods[] = {
/* name, method, flags, doc */
{"getPixelF", ( PyCFunction ) Image_getPixelF, METH_VARARGS,
"(int, int) - Get pixel color as floats 0.0-1.0 returns [r,g,b,a]"},
{"getPixelI", ( PyCFunction ) Image_getPixelI, METH_VARARGS,
"(int, int) - Get pixel color as ints 0-255 returns [r,g,b,a]"},
{"setPixelF", ( PyCFunction ) Image_setPixelF, METH_VARARGS,
"(int, int, [f r,f g,f b,f a]) - Set pixel color using floats 0.0-1.0"},
{"setPixelI", ( PyCFunction ) Image_setPixelI, METH_VARARGS,
"(int, int, [i r, i g, i b, i a]) - Set pixel color using ints 0-255"},
{"getMaxXY", ( PyCFunction ) Image_getMaxXY, METH_NOARGS,
"() - Get maximum x & y coordinates of current image as [x, y]"},
{"getMinXY", ( PyCFunction ) Image_getMinXY, METH_NOARGS,
"() - Get minimun x & y coordinates of image as [x, y]"},
{"getName", ( PyCFunction ) Image_getName, METH_NOARGS,
"() - Return Image object name"},
{"getFilename", ( PyCFunction ) Image_getFilename, METH_NOARGS,
"() - Return Image object filename"},
{"getSize", ( PyCFunction ) Image_getSize, METH_NOARGS,
"() - Return Image object [width, height] dimension in pixels"},
{"getDepth", ( PyCFunction ) Image_getDepth, METH_NOARGS,
"() - Return Image object pixel depth"},
{"getXRep", ( PyCFunction ) Image_getXRep, METH_NOARGS,
"() - Return Image object x repetition value"},
{"getYRep", ( PyCFunction ) Image_getYRep, METH_NOARGS,
"() - Return Image object y repetition value"},
{"getStart", ( PyCFunction ) Image_getStart, METH_NOARGS,
"() - Return Image object start frame."},
{"getEnd", ( PyCFunction ) Image_getEnd, METH_NOARGS,
"() - Return Image object end frame."},
{"getSpeed", ( PyCFunction ) Image_getSpeed, METH_NOARGS,
"() - Return Image object speed (fps)."},
{"getBindCode", ( PyCFunction ) Image_getBindCode, METH_NOARGS,
"() - Return Image object's bind code value"},
{"reload", ( PyCFunction ) Image_reload, METH_NOARGS,
"() - Reload the image from the filesystem"},
{"glLoad", ( PyCFunction ) Image_glLoad, METH_NOARGS,
"() - Load the image data in OpenGL texture memory.\n\
The bindcode (int) is returned."},
{"glFree", ( PyCFunction ) Image_glFree, METH_NOARGS,
"() - Free the image data from OpenGL texture memory only,\n\
see also image.glLoad()."},
{"setName", ( PyCFunction ) Image_setName, METH_VARARGS,
"(str) - Change Image object name"},
{"setFilename", ( PyCFunction ) Image_setFilename, METH_VARARGS,
"(str) - Change Image file name"},
{"setXRep", ( PyCFunction ) Image_setXRep, METH_VARARGS,
"(int) - Change Image object x repetition value"},
{"setYRep", ( PyCFunction ) Image_setYRep, METH_VARARGS,
"(int) - Change Image object y repetition value"},
{"setStart", ( PyCFunction ) Image_setStart, METH_VARARGS,
"(int) - Change Image object animation start value"},
{"setEnd", ( PyCFunction ) Image_setEnd, METH_VARARGS,
"(int) - Change Image object animation end value"},
{"setSpeed", ( PyCFunction ) Image_setSpeed, METH_VARARGS,
"(int) - Change Image object animation speed (fps)"},
{"save", ( PyCFunction ) Image_save, METH_NOARGS,
"() - Write image buffer to file"},
{"unpack", ( PyCFunction ) Image_unpack, METH_VARARGS,
"(int) - Unpack image. Uses the values defined in Blender.UnpackModes."},
{"pack", ( PyCFunction ) Image_pack, METH_NOARGS,
"() Pack the image"},
{NULL, NULL, 0, NULL}
};
/*****************************************************************************/
/* The following string definitions are used for documentation strings. */
/* In Python these will be written to the console when doing a */
/* Blender.Image.__doc__ */
/*****************************************************************************/
static char M_Image_doc[] = "The Blender Image module\n\n";
static char M_Image_New_doc[] =
"() - return a new Image object";
static char M_Image_Get_doc[] =
"(name) - return the image with the name 'name', \
returns None if not found.\n If 'name' is not specified, \
it returns a list of all images in the\ncurrent scene.";
static char M_Image_GetCurrent_doc[] =
"() - return the current image, from last active the uv/image view, \
returns None no image is in the view.\n";
static char M_Image_Load_doc[] =
"(filename) - return image from file filename as Image Object, \
returns None if not found.\n";
/*****************************************************************************/
/* Python method structure definition for Blender.Image module: */
/*****************************************************************************/
struct PyMethodDef M_Image_methods[] = {
{"New", M_Image_New, METH_VARARGS, M_Image_New_doc},
{"Get", M_Image_Get, METH_VARARGS, M_Image_Get_doc},
{"GetCurrent", ( PyCFunction ) M_Image_GetCurrent, METH_NOARGS, M_Image_GetCurrent_doc},
{"get", M_Image_Get, METH_VARARGS, M_Image_Get_doc},
{"Load", M_Image_Load, METH_VARARGS, M_Image_Load_doc},
{NULL, NULL, 0, NULL}
};
/*****************************************************************************/
/* Function: M_Image_New */
/* Python equivalent: Blender.Image.New */
/*****************************************************************************/
static PyObject *M_Image_New( PyObject * self, PyObject * args)
{
int width, height, depth;
char *name;
Image *image;
if( !PyArg_ParseTuple( args, "siii", &name, &width, &height, &depth ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected 1 string and 3 ints" ) );
if (width > 5000 || height > 5000 || width < 1 || height < 1)
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"Image width and height must be between 1 and 5000" ) );
image = new_image(width, height, name, 0);
if( !image )
return ( EXPP_ReturnPyObjError( PyExc_MemoryError,
"couldn't create PyObject Image_Type" ) );
/* reset usage count, since new_image() incremented it */
image->id.us--;
return Image_CreatePyObject( image );
}
/*****************************************************************************/
/* Function: M_Image_Get */
/* Python equivalent: Blender.Image.Get */
/* Description: Receives a string and returns the image object */
/* whose name matches the string. If no argument is */
/* passed in, a list of all image names in the */
/* current scene is returned. */
/*****************************************************************************/
static PyObject *M_Image_Get( PyObject * self, PyObject * args )
{
char *name = NULL;
Image *img_iter;
if( !PyArg_ParseTuple( args, "|s", &name ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected string argument (or nothing)" ) );
img_iter = G.main->image.first;
if( name ) { /* (name) - Search image by name */
BPy_Image *wanted_image = NULL;
while( ( img_iter ) && ( wanted_image == NULL ) ) {
if( strcmp( name, img_iter->id.name + 2 ) == 0 ) {
wanted_image = ( BPy_Image * )
PyObject_NEW( BPy_Image, &Image_Type );
if( wanted_image )
wanted_image->image = img_iter;
}
img_iter = img_iter->id.next;
}
if( wanted_image == NULL ) { /* Requested image doesn't exist */
char error_msg[64];
PyOS_snprintf( error_msg, sizeof( error_msg ),
"Image \"%s\" not found", name );
return ( EXPP_ReturnPyObjError
( PyExc_NameError, error_msg ) );
}
return ( PyObject * ) wanted_image;
}
else { /* () - return a list of all images in the scene */
int index = 0;
PyObject *img_list, *pyobj;
img_list = PyList_New( BLI_countlist( &( G.main->image ) ) );
if( img_list == NULL )
return ( EXPP_ReturnPyObjError( PyExc_MemoryError,
"couldn't create PyList" ) );
while( img_iter ) {
pyobj = Image_CreatePyObject( img_iter );
PyList_SET_ITEM( img_list, index, pyobj );
img_iter = img_iter->id.next;
index++;
}
return ( img_list );
}
}
/*****************************************************************************/
/* Function: M_Image_GetCurrent*/
/* Python equivalent: Blender.Image.GetCurrent */
/* Description: Returns the active current (G.sima) */
/* This will be the image last under the mouse cursor */
/* None if there is no Image. */
/*****************************************************************************/
static PyObject *M_Image_GetCurrent( PyObject * self )
{
if (!G.sima || !G.sima->image) {
Py_RETURN_NONE;
}
return Image_CreatePyObject( G.sima->image );
}
/*****************************************************************************/
/* Function: M_Image_Load */
/* Python equivalent: Blender.Image.Load */
/* Description: Receives a string and returns the image object */
/* whose filename matches the string. */
/*****************************************************************************/
static PyObject *M_Image_Load( PyObject * self, PyObject * args )
{
char *fname;
Image *img_ptr;
BPy_Image *image;
if( !PyArg_ParseTuple( args, "s", &fname ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected string argument" ) );
image = ( BPy_Image * ) PyObject_NEW( BPy_Image, &Image_Type );
if( !image )
return ( EXPP_ReturnPyObjError( PyExc_MemoryError,
"couldn't create PyObject Image_Type" ) );
img_ptr = add_image( fname );
if( !img_ptr )
return ( EXPP_ReturnPyObjError( PyExc_IOError,
"couldn't load image" ) );
//reload the image buffers
free_image_buffers(img_ptr);
img_ptr->ibuf = IMB_loadiffname(img_ptr->name , 0);
image->image = img_ptr;
return ( PyObject * ) image;
}
/**
* getPixelF( x, y )
* returns float list of pixel colors in rgba order.
* returned values are floats normalized to 0.0 - 1.0.
* blender images are all 4x8 bit at the moment apr-2005
*/
static PyObject *Image_getPixelF( BPy_Image * self, PyObject * args )
{
PyObject *attr;
Image *image = self->image;
char *pixel; /* image data */
int index; /* offset into image data */
int x = 0;
int y = 0;
int pixel_size = 4; /* each pixel is 4 x 8-bits packed in unsigned int */
if( !PyArg_ParseTuple( args, "ii", &x, &y ) )
return EXPP_ReturnPyObjError( PyExc_TypeError,
"expected 2 integers" );
if( !image->ibuf || !image->ibuf->rect ) /* if no image data available */
load_image( image, IB_rect, G.sce, G.scene->r.cfra ); /* loading it */
if( !image->ibuf || !image->ibuf->rect ) /* didn't work */
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't load image data in Blender" );
if( image->ibuf->type == 1 ) /* bitplane image */
return EXPP_ReturnPyObjError( PyExc_TypeError,
"unsupported bitplane image format" );
if( x > ( image->ibuf->x - 1 )
|| y > ( image->ibuf->y - 1 )
|| x < image->ibuf->xorig || y < image->ibuf->yorig )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"x or y is out of range" );
/*
assumption: from looking at source, skipx is often not set,
so we calc ourselves
*/
index = ( x + y * image->ibuf->x ) * pixel_size;
pixel = ( char * ) image->ibuf->rect;
attr = Py_BuildValue( "[f,f,f,f]",
( ( float ) pixel[index] ) / 255.0,
( ( float ) pixel[index + 1] ) / 255.0,
( ( float ) pixel[index + 2] ) / 255.0,
( ( float ) pixel[index + 3] / 255.0 ) );
if( attr ) /* normal return */
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get pixel colors" );
}
/**
* getPixelI( x, y )
* returns integer list of pixel colors in rgba order.
* returned values are ints normalized to 0-255.
* blender images are all 4x8 bit at the moment apr-2005
*/
static PyObject *Image_getPixelI( BPy_Image * self, PyObject * args )
{
PyObject *attr;
Image *image = self->image;
char *pixel; /* image data */
int index; /* offset into image data */
int x = 0;
int y = 0;
int pixel_size = 4; /* each pixel is 4 x 8-bits packed in unsigned int */
if( !PyArg_ParseTuple( args, "ii", &x, &y ) )
return EXPP_ReturnPyObjError( PyExc_TypeError,
"expected 2 integers" );
if( !image->ibuf || !image->ibuf->rect ) /* if no image data available */
load_image( image, IB_rect, G.sce, G.scene->r.cfra ); /* loading it */
if( !image->ibuf || !image->ibuf->rect ) /* didn't work */
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't load image data in Blender" );
if( image->ibuf->type == 1 ) /* bitplane image */
return EXPP_ReturnPyObjError( PyExc_TypeError,
"unsupported bitplane image format" );
if( x > ( image->ibuf->x - 1 )
|| y > ( image->ibuf->y - 1 )
|| x < image->ibuf->xorig || y < image->ibuf->yorig )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"x or y is out of range" );
/*
assumption: from looking at source, skipx is often not set,
so we calc ourselves
*/
index = ( x + y * image->ibuf->x ) * pixel_size;
pixel = ( char * ) image->ibuf->rect;
attr = Py_BuildValue( "[i,i,i,i]",
pixel[index],
pixel[index + 1],
pixel[index + 2], pixel[index + 3] );
if( attr ) /* normal return */
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get pixel colors" );
}
/* set pixel as floats */
static PyObject *Image_setPixelF( BPy_Image * self, PyObject * args )
{
Image *image = self->image;
char *pixel; /* image data */
int index; /* offset into image data */
int x = 0;
int y = 0;
int a = 0;
int pixel_size = 4; /* each pixel is 4 x 8-bits packed in unsigned int */
float p[4];
if( !PyArg_ParseTuple
( args, "ii(ffff)", &x, &y, &p[0], &p[1], &p[2], &p[3] ) )
return EXPP_ReturnPyObjError( PyExc_TypeError,
"expected 2 integers and an array of 4 floats" );
if( !image->ibuf || !image->ibuf->rect ) /* if no image data available */
load_image( image, IB_rect, G.sce, G.scene->r.cfra ); /* loading it */
if( !image->ibuf || !image->ibuf->rect ) /* didn't work */
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't load image data in Blender" );
if( image->ibuf->type == 1 ) /* bitplane image */
return EXPP_ReturnPyObjError( PyExc_TypeError,
"unsupported bitplane image format" );
if( x > ( image->ibuf->x - 1 )
|| y > ( image->ibuf->y - 1 )
|| x < image->ibuf->xorig || y < image->ibuf->yorig )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"x or y is out of ruange" );
for( a = 0; a < 4; a++ ) {
if( p[a] > 1.0 || p[a] < 0.0 )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"r, g, b, or a is out of range" );
}
/*
assumption: from looking at source, skipx is often not set,
so we calc ourselves
*/
index = ( x + y * image->ibuf->x ) * pixel_size;
pixel = ( char * ) image->ibuf->rect;
pixel[index] = ( char ) ( p[0] * 255.0 );
pixel[index + 1] = ( char ) ( p[1] * 255.0 );
pixel[index + 2] = ( char ) ( p[2] * 255.0 );
pixel[index + 3] = ( char ) ( p[3] * 255.0 );
Py_RETURN_NONE;
}
/* set pixel as ints */
static PyObject *Image_setPixelI( BPy_Image * self, PyObject * args )
{
Image *image = self->image;
char *pixel; /* image data */
int index; /* offset into image data */
int x = 0;
int y = 0;
int a = 0;
int pixel_size = 4; /* each pixel is 4 x 8-bits packed in unsigned int */
int p[4];
if( !PyArg_ParseTuple
( args, "ii(iiii)", &x, &y, &p[0], &p[1], &p[2], &p[3] ) )
return EXPP_ReturnPyObjError( PyExc_TypeError,
"expected 2 integers and an list of 4 ints" );
if( !image->ibuf || !image->ibuf->rect ) /* if no image data available */
load_image( image, IB_rect, G.sce, G.scene->r.cfra ); /* loading it */
if( !image->ibuf || !image->ibuf->rect ) /* didn't work */
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't load image data in Blender" );
if( image->ibuf->type == 1 ) /* bitplane image */
return EXPP_ReturnPyObjError( PyExc_TypeError,
"unsupported bitplane image format" );
if( x > ( image->ibuf->x - 1 )
|| y > ( image->ibuf->y - 1 )
|| x < image->ibuf->xorig || y < image->ibuf->yorig )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"x or y is out of range" );
for( a = 0; a < 4; a++ ) {
if( p[a] > 255 || p[a] < 0 )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"r, g, b, or a is out of range" );
}
/*
assumption: from looking at source, skipx is often not set,
so we calc ourselves
*/
index = ( x + y * image->ibuf->x ) * pixel_size;
pixel = ( char * ) image->ibuf->rect;
pixel[index] = ( char ) p[0];
pixel[index + 1] = ( char ) p[1];
pixel[index + 2] = ( char ) p[2];
pixel[index + 3] = ( char ) p[3];
Py_RETURN_NONE;
}
/* get max extent of image */
static PyObject *Image_getMaxXY( BPy_Image * self )
{
Image *image = self->image;
PyObject *attr;
if( !image->ibuf || !image->ibuf->rect ) /* if no image data available */
load_image( image, IB_rect, G.sce, G.scene->r.cfra ); /* loading it */
if( !image->ibuf || !image->ibuf->rect ) /* didn't work */
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't load image data in Blender" );
attr = Py_BuildValue( "[i,i]", image->ibuf->x, image->ibuf->y );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"could not determine max x or y" );
}
/* get min extent of image */
static PyObject *Image_getMinXY( BPy_Image * self )
{
Image *image = self->image;
PyObject *attr;
if( !image->ibuf || !image->ibuf->rect ) /* if no image data available */
load_image( image, IB_rect, G.sce, G.scene->r.cfra ); /* loading it */
if( !image->ibuf || !image->ibuf->rect ) /* didn't work */
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't load image data in Blender" );
attr = Py_BuildValue( "[i,i]", image->ibuf->xorig,
image->ibuf->yorig );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"could not determine min x or y" );
}
/* unpack image */
static PyObject *Image_unpack( BPy_Image * self, PyObject * args )
{
Image *image = self->image;
int mode;
/*get the absolute path */
if( !PyArg_ParseTuple( args, "i", &mode ) )
return EXPP_ReturnPyObjError( PyExc_TypeError,
"expected 1 integer" );
if (image->packedfile==NULL)
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"image not packed" );
if (unpackImage(image, mode) == RET_ERROR)
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"error unpacking image" );
Py_RETURN_NONE;
}
/* pack image */
static PyObject *Image_pack( BPy_Image * self )
{
Image *image = self->image;
char expandpath[FILE_MAXDIR + FILE_MAXFILE];
BLI_strncpy(expandpath, image->name, FILE_MAXDIR+FILE_MAXFILE);
BLI_convertstringcode(expandpath, G.sce, 1);
if (image->packedfile )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"image alredy packed" );
if (!BLI_exists(expandpath))
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"image path does not exist" );
image->packedfile = newPackedFile(image->name);
Py_RETURN_NONE;
}
/* save image to file */
static PyObject *Image_save( BPy_Image * self )
{
Py_INCREF( Py_None );
if( !IMB_saveiff
( self->image->ibuf, self->image->name,
self->image->ibuf->flags ) )
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"could not save image" );
Py_RETURN_NONE; /* normal return, image saved */
}
/*****************************************************************************/
/* Function: Image_Init */
/*****************************************************************************/
PyObject *Image_Init( void )
{
PyObject *submodule;
Image_Type.ob_type = &PyType_Type;
submodule =
Py_InitModule3( "Blender.Image", M_Image_methods,
M_Image_doc );
return ( submodule );
}
/*****************************************************************************/
/* Python Image_Type callback function prototypes: */
/*****************************************************************************/
static void Image_dealloc( BPy_Image * self );
static int Image_setAttr( BPy_Image * self, char *name, PyObject * v );
static int Image_compare( BPy_Image * a, BPy_Image * b );
static PyObject *Image_getAttr( BPy_Image * self, char *name );
static PyObject *Image_repr( BPy_Image * self );
/*****************************************************************************/
/* Python Image_Type structure definition: */
/*****************************************************************************/
PyTypeObject Image_Type = {
PyObject_HEAD_INIT( NULL ) /* required macro. ( no comma needed ) */
0, /* ob_size */
"Blender Image", /* tp_name */
sizeof( BPy_Image ), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
( destructor ) Image_dealloc, /* tp_dealloc */
0, /* tp_print */
( getattrfunc ) Image_getAttr, /* tp_getattr */
( setattrfunc ) Image_setAttr, /* tp_setattr */
( cmpfunc ) Image_compare, /* tp_compare */
( reprfunc ) Image_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_as_hash */
0, 0, 0, 0, 0, 0,
0, /* tp_doc */
0, 0, 0, 0, 0, 0,
BPy_Image_methods, /* tp_methods */
0, /* tp_members */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* up to tp_del, to avoid a warning */
};
/*****************************************************************************/
/* Function: Image_dealloc */
/* Description: This is a callback function for the BPy_Image type. It is */
/* the destructor function. */
/*****************************************************************************/
static void Image_dealloc( BPy_Image * self )
{
PyObject_DEL( self );
}
/*****************************************************************************/
/* Function: Image_CreatePyObject */
/* Description: This function will create a new BPy_Image from an existing */
/* Blender image structure. */
/*****************************************************************************/
PyObject *Image_CreatePyObject( Image * image )
{
BPy_Image *py_img;
py_img = ( BPy_Image * ) PyObject_NEW( BPy_Image, &Image_Type );
if( !py_img )
return EXPP_ReturnPyObjError( PyExc_MemoryError,
"couldn't create BPy_Image object" );
py_img->image = image;
return ( PyObject * ) py_img;
}
/*****************************************************************************/
/* Function: Image_CheckPyObject */
/* Description: This function returns true when the given PyObject is of the */
/* type Image. Otherwise it will return false. */
/*****************************************************************************/
int Image_CheckPyObject( PyObject * pyobj )
{
return ( pyobj->ob_type == &Image_Type );
}
/*****************************************************************************/
/* Function: Image_FromPyObject */
/* Description: Returns the Blender Image associated with this object */
/*****************************************************************************/
Image *Image_FromPyObject( PyObject * pyobj )
{
return ( ( BPy_Image * ) pyobj )->image;
}
/*****************************************************************************/
/* Python BPy_Image methods: */
/*****************************************************************************/
static PyObject *Image_getName( BPy_Image * self )
{
PyObject *attr = PyString_FromString( self->image->id.name + 2 );
if( attr )
return attr;
return ( EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.name attribute" ) );
}
static PyObject *Image_getFilename( BPy_Image * self )
{
PyObject *attr = PyString_FromString( self->image->name );
if( attr )
return attr;
return ( EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.filename attribute" ) );
}
static PyObject *Image_getSize( BPy_Image * self )
{
PyObject *attr;
Image *image = self->image;
if( !image->ibuf ) /* if no image data available */
load_image( image, IB_rect, G.sce, G.scene->r.cfra ); /* loading it */
if( !image->ibuf ) /* didn't work */
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't load image data in Blender" );
attr = Py_BuildValue( "[hh]", image->ibuf->x, image->ibuf->y );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.size attribute" );
}
static PyObject *Image_getDepth( BPy_Image * self )
{
PyObject *attr;
Image *image = self->image;
if( !image->ibuf ) /* if no image data available */
load_image( image, IB_rect, G.sce, G.scene->r.cfra ); /* loading it */
if( !image->ibuf ) /* didn't work */
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't load image data in Blender" );
attr = Py_BuildValue( "h", image->ibuf->depth );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.depth attribute" );
}
static PyObject *Image_getXRep( BPy_Image * self )
{
PyObject *attr = PyInt_FromLong( self->image->xrep );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.xrep attribute" );
}
static PyObject *Image_getYRep( BPy_Image * self )
{
PyObject *attr = PyInt_FromLong( self->image->yrep );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.yrep attribute" );
}
static PyObject *Image_getStart( BPy_Image * self )
{
PyObject *attr = PyInt_FromLong( self->image->twsta );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.start attribute" );
}
static PyObject *Image_getEnd( BPy_Image * self )
{
PyObject *attr = PyInt_FromLong( self->image->twend );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.end attribute" );
}
static PyObject *Image_getSpeed( BPy_Image * self )
{
PyObject *attr = PyInt_FromLong( self->image->animspeed );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.speed attribute" );
}
static PyObject *Image_getBindCode( BPy_Image * self )
{
PyObject *attr = PyLong_FromUnsignedLong( self->image->bindcode );
if( attr )
return attr;
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't get Image.bindcode attribute" );
}
static PyObject *Image_reload( BPy_Image * self )
{
Image *image = self->image;
free_image_buffers( image ); /* force read again */
image->ok = 1;
Py_RETURN_NONE;
}
static PyObject *Image_glFree( BPy_Image * self )
{
Image *image = self->image;
free_realtime_image( image );
/* remove the nocollect flag, image is available for garbage collection again */
image->flag &= ~IMA_NOCOLLECT;
Py_RETURN_NONE;
}
static PyObject *Image_glLoad( BPy_Image * self )
{
Image *image = self->image;
unsigned int *bind = &image->bindcode;
if( *bind == 0 ) {
if( !image->ibuf ) /* if no image data is available */
load_image( image, IB_rect, G.sce, G.scene->r.cfra ); /* loading it */
if( !image->ibuf ) /* didn't work */
return EXPP_ReturnPyObjError( PyExc_RuntimeError,
"couldn't load image data in Blender" );
glGenTextures( 1, ( GLuint * ) bind );
glBindTexture( GL_TEXTURE_2D, *bind );
gluBuild2DMipmaps( GL_TEXTURE_2D, GL_RGBA, image->ibuf->x,
image->ibuf->y, GL_RGBA, GL_UNSIGNED_BYTE,
image->ibuf->rect );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
GL_LINEAR_MIPMAP_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
GL_LINEAR );
glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, image->ibuf->x,
image->ibuf->y, 0, GL_RGBA, GL_UNSIGNED_BYTE,
image->ibuf->rect );
/* raise the nocollect flag,
image is not available for garbage collection
(python GL might use it directly)
*/
image->flag |= IMA_NOCOLLECT;
}
return PyLong_FromUnsignedLong( image->bindcode );
}
static PyObject *Image_setName( BPy_Image * self, PyObject * args )
{
char *name;
char buf[21];
if( !PyArg_ParseTuple( args, "s", &name ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected string argument" ) );
PyOS_snprintf( buf, sizeof( buf ), "%s", name );
rename_id( &self->image->id, buf );
Py_RETURN_NONE;
}
static PyObject *Image_setFilename( BPy_Image * self, PyObject * args )
{
char *name;
int namelen = 0;
/* max len is FILE_MAXDIR = 160 chars like done in DNA_image_types.h */
if( !PyArg_ParseTuple( args, "s#", &name, &namelen ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected a string argument" ) );
if( namelen >= FILE_MAXDIR )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"string argument is limited to 160 chars at most" ) );
PyOS_snprintf( self->image->name, FILE_MAXDIR * sizeof( char ), "%s",
name );
Py_RETURN_NONE;
}
static PyObject *Image_setXRep( BPy_Image * self, PyObject * args )
{
short value;
if( !PyArg_ParseTuple( args, "h", &value ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected int argument in [1,16]" ) );
if( value >= EXPP_IMAGE_REP_MIN && value <= EXPP_IMAGE_REP_MAX )
self->image->xrep = value;
else
return ( EXPP_ReturnPyObjError( PyExc_ValueError,
"expected int argument in [1,16]" ) );
Py_RETURN_NONE;
}
static PyObject *Image_setYRep( BPy_Image * self, PyObject * args )
{
short value;
if( !PyArg_ParseTuple( args, "h", &value ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected int argument in [1,16]" ) );
if( value >= EXPP_IMAGE_REP_MIN && value <= EXPP_IMAGE_REP_MAX )
self->image->yrep = value;
else
return ( EXPP_ReturnPyObjError( PyExc_ValueError,
"expected int argument in [1,16]" ) );
Py_RETURN_NONE;
}
static PyObject *Image_setStart( BPy_Image * self, PyObject * args )
{
short value;
if( !PyArg_ParseTuple( args, "h", &value ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected int argument in [0,128]" ) );
if( value >= 0 && value <= 128 )
self->image->twsta = value;
else
return ( EXPP_ReturnPyObjError( PyExc_ValueError,
"expected int argument in [0,128]" ) );
Py_RETURN_NONE;
}
static PyObject *Image_setEnd( BPy_Image * self, PyObject * args )
{
short value;
if( !PyArg_ParseTuple( args, "h", &value ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected int argument in [0,128]" ) );
if( value >= 0 && value <= 128 )
self->image->twend = value;
else
return ( EXPP_ReturnPyObjError( PyExc_ValueError,
"expected int argument in [0,128]" ) );
Py_RETURN_NONE;
}
static PyObject *Image_setSpeed( BPy_Image * self, PyObject * args )
{
short value;
if( !PyArg_ParseTuple( args, "h", &value ) )
return ( EXPP_ReturnPyObjError( PyExc_TypeError,
"expected int argument in [0,128]" ) );
if( value >= 1 && value <= 100 )
self->image->animspeed = value;
else
return ( EXPP_ReturnPyObjError( PyExc_ValueError,
"expected int argument in [0,128]" ) );
Py_RETURN_NONE;
}
/*****************************************************************************/
/* Function: Image_getAttr */
/* Description: This is a callback function for the BPy_Image type. It is */
/* the function that accesses BPy_Image member variables and */
/* methods. */
/*****************************************************************************/
static PyObject *Image_getAttr( BPy_Image * self, char *name )
{
PyObject *attr = Py_None;
if( strcmp( name, "name" ) == 0 )
attr = PyString_FromString( self->image->id.name + 2 );
else if( strcmp( name, "filename" ) == 0 )
attr = PyString_FromString( self->image->name );
else if( strcmp( name, "size" ) == 0 )
return Image_getSize( self );
else if( strcmp( name, "depth" ) == 0 )
return Image_getDepth( self );
else if( strcmp( name, "xrep" ) == 0 )
attr = PyInt_FromLong( self->image->xrep );
else if( strcmp( name, "yrep" ) == 0 )
attr = PyInt_FromLong( self->image->yrep );
else if( strcmp( name, "start" ) == 0 )
attr = PyInt_FromLong( self->image->twsta );
else if( strcmp( name, "end" ) == 0 )
attr = PyInt_FromLong( self->image->twend );
else if( strcmp( name, "speed" ) == 0 )
attr = PyInt_FromLong( self->image->animspeed );
else if( strcmp( name, "packed" ) == 0 ) {
if (self->image->packedfile)
attr = EXPP_incr_ret_True();
else
attr = EXPP_incr_ret_False();
} else if( strcmp( name, "bindcode" ) == 0 )
attr = PyInt_FromLong( self->image->bindcode );
else if( strcmp( name, "users" ) == 0 )
attr = PyInt_FromLong( self->image->id.us );
else if( strcmp( name, "__members__" ) == 0 )
attr = Py_BuildValue( "[s,s,s,s,s,s,s,s,s,s,s]",
"name", "filename", "size", "depth",
"xrep", "yrep", "start", "end",
"speed", "packed",
"bindcode", "users" );
if( !attr )
return ( EXPP_ReturnPyObjError( PyExc_MemoryError,
"couldn't create PyObject" ) );
if( attr != Py_None )
return attr; /* attribute found, return its value */
/* not an attribute, search the methods table */
return Py_FindMethod( BPy_Image_methods, ( PyObject * ) self, name );
}
/*****************************************************************************/
/* Function: Image_setAttr */
/* Description: This is a callback function for the BPy_Image type. It is the*/
/* function that changes Image object members values. If this */
/* data is linked to a Blender Image, it also gets updated. */
/*****************************************************************************/
static int Image_setAttr( BPy_Image * self, char *name, PyObject * value )
{
PyObject *valtuple;
PyObject *error = NULL;
/* We're playing a trick on the Python API users here. Even if they use
* Image.member = val instead of Image.setMember(value), we end up using the
* function anyway, since it already has error checking, clamps to the right
* interval and updates the Blender Image structure when necessary. */
valtuple = Py_BuildValue( "(O)", value ); /*the set* functions expect a tuple */
if( !valtuple )
return EXPP_ReturnIntError( PyExc_MemoryError,
"ImageSetAttr: couldn't create PyTuple" );
if( strcmp( name, "name" ) == 0 )
error = Image_setName( self, valtuple );
if( strcmp( name, "filename" ) == 0 )
error = Image_setFilename( self, valtuple );
else if( strcmp( name, "xrep" ) == 0 )
error = Image_setXRep( self, valtuple );
else if( strcmp( name, "yrep" ) == 0 )
error = Image_setYRep( self, valtuple );
else if( strcmp( name, "start" ) == 0 )
error = Image_setStart( self, valtuple );
else if( strcmp( name, "end" ) == 0 )
error = Image_setEnd( self, valtuple );
else if( strcmp( name, "speed" ) == 0 )
error = Image_setSpeed( self, valtuple );
else { /* Error: no such member in the Image object structure */
/*Py_DECREF( value ); borrowed ref, no need to decref */
Py_DECREF( valtuple );
return ( EXPP_ReturnIntError( PyExc_KeyError,
"attribute not found or immutable" ) );
}
Py_DECREF( valtuple );
if( error != Py_None )
return -1;
Py_DECREF( Py_None ); /* incref'ed by the called set* function */
return 0; /* normal exit */
}
/*****************************************************************************/
/* Function: Image_compare */
/* Description: This is a callback function for the BPy_Image type. It */
/* compares two Image_Type objects. Only the "==" and "!=" */
/* comparisons are meaninful. Returns 0 for equality and -1 if */
/* they don't point to the same Blender Image struct. */
/* In Python it becomes 1 if they are equal, 0 otherwise. */
/*****************************************************************************/
static int Image_compare( BPy_Image * a, BPy_Image * b )
{
Image *pa = a->image, *pb = b->image;
return ( pa == pb ) ? 0 : -1;
}
/*****************************************************************************/
/* Function: Image_repr */
/* Description: This is a callback function for the BPy_Image type. It */
/* builds a meaninful string to represent image objects. */
/*****************************************************************************/
static PyObject *Image_repr( BPy_Image * self )
{
return PyString_FromFormat( "[Image \"%s\"]",
self->image->id.name + 2 );
}
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