e63e8777a1
* NEW: Image editor: Image brightness and constrast, clipboard management, cut, copy & paste have been implemented. Many fixes everywhere. * NEW: Image editor: Resize dialog has been enhanced. [GB.IMAGE] * BUG: Image.Copy() now checks its arguments better, so that it does not generate images with garbage inside. * NEW: Image.BrightnessContrast() is a new method that allows to change the brightness and contrast of an image. * OPT: Internal routines for color space conversion between HSV and RGB have been optimized. [GB.FORM] * NEW: The ImageView Draw event now takes the image that has been drawn as argument. * NEW: ImageView.Brightness and ImageView.Contrast are two new properties that allow to define the corresponding effects applied to the displayed image. git-svn-id: svn://localhost/gambas/trunk@5775 867c0c6c-44f3-4631-809d-bfa615b0a4ec
496 lines
13 KiB
C
496 lines
13 KiB
C
/***************************************************************************
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CImage.c
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(c) 2000-2013 Benoît Minisini <gambas@users.sourceforge.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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#define __CIMAGE_C
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#include "main.h"
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#include "image.h"
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#include "CImage.h"
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BEGIN_METHOD(Image_new, GB_INTEGER w; GB_INTEGER h; GB_INTEGER col; GB_INTEGER format)
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int format = IMAGE_get_default_format();
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if (VARGOPT(format, 0) == 1)
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format = GB_IMAGE_FMT_SET_PREMULTIPLIED(format);
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IMAGE_create(THIS_IMAGE, VARGOPT(w, 0), VARGOPT(h, 0), format);
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if (!MISSING(col))
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IMAGE_fill(THIS_IMAGE, VARG(col));
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END_METHOD
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BEGIN_METHOD_VOID(Image_free)
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IMAGE_delete(THIS_IMAGE);
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END_METHOD
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BEGIN_PROPERTY(Image_Width)
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GB.ReturnInteger(THIS_IMAGE->width);
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END_PROPERTY
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BEGIN_PROPERTY(Image_Height)
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GB.ReturnInteger(THIS_IMAGE->height);
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END_PROPERTY
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BEGIN_PROPERTY(Image_Depth)
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GB.ReturnInteger(32);
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END_PROPERTY
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BEGIN_METHOD(Image_Fill, GB_INTEGER col)
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IMAGE_fill(THIS_IMAGE, VARG(col));
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD(Image_FillRect, GB_INTEGER x; GB_INTEGER y; GB_INTEGER width; GB_INTEGER height; GB_INTEGER col)
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IMAGE_fill_rect(THIS_IMAGE, VARG(x), VARG(y), VARG(width), VARG(height), VARG(col), TRUE);
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD(Image_PaintRect, GB_INTEGER x; GB_INTEGER y; GB_INTEGER width; GB_INTEGER height; GB_INTEGER col)
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IMAGE_fill_rect(THIS_IMAGE, VARG(x), VARG(y), VARG(width), VARG(height), VARG(col), FALSE);
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD(Image_get, GB_INTEGER x; GB_INTEGER y)
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GB.ReturnInteger(IMAGE_get_pixel(THIS_IMAGE, VARG(x), VARG(y)));
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END_METHOD
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BEGIN_METHOD(Image_put, GB_INTEGER col; GB_INTEGER x; GB_INTEGER y)
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IMAGE_set_pixel(THIS_IMAGE, VARG(x), VARG(y), VARG(col));
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END_METHOD
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BEGIN_PROPERTY(Image_Data)
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GB.ReturnPointer((void *)THIS_IMAGE->data);
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END_PROPERTY
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BEGIN_METHOD_VOID(Image_Desaturate)
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IMAGE_make_gray(THIS_IMAGE);
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD_VOID(Image_Gray)
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fprintf(stderr, "warning: Image.Gray is deprecated, use Image.Desaturate instead.\n");
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Image_Desaturate(_object, _param);
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END_METHOD
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BEGIN_METHOD_VOID(Image_Clear)
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//IMAGE_fill(THIS_IMAGE, 0XFF000000);
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IMAGE_delete(THIS_IMAGE);
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END_METHOD
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BEGIN_METHOD(Image_Replace, GB_INTEGER src; GB_INTEGER dst; GB_BOOLEAN noteq)
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IMAGE_replace(THIS_IMAGE, VARG(src), VARG(dst), VARGOPT(noteq, FALSE));
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD(Image_Erase, GB_INTEGER color)
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IMAGE_make_transparent(THIS_IMAGE, VARGOPT(color, 0xFFFFFF));
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD_VOID(Image_Transparent)
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fprintf(stderr, "warning: Image.Transparent is deprecated, use Image.Erase instead.\n");
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Image_Erase(_object, _param);
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END_METHOD
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BEGIN_METHOD(Image_Colorize, GB_INTEGER color)
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IMAGE_colorize(THIS_IMAGE, VARG(color));
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD(Image_Mask, GB_INTEGER color)
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IMAGE_mask(THIS_IMAGE, VARG(color));
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GB.ReturnObject(THIS);
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END_METHOD
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// Parameter correction
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#define CHECK_PARAMETERS(dst, dx, dy, dw, dh, src, sx, sy, sw, sh) \
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if ( sw < 0 ) sw = src->width; \
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if ( sh < 0 ) sh = src->height; \
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if (dw < 0) dw = sw; \
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if (dh < 0) dh = sh; \
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if (dw != sw || dh != sh) \
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{ \
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GB.Error("Stretching images is not implemented in gb.image"); \
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return; \
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} \
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if ( sx < 0 ) { dx -= sx; dw += sx; sw += sx; sx = 0; } \
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if ( sy < 0 ) { dy -= sy; dh += sy; sh += sy; sy = 0; } \
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if ( dx < 0 ) { sx -= dx; sw += dx; dx = 0; } \
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if ( dy < 0 ) { sy -= dy; sh += dy; dy = 0; } \
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if ( (sx + sw) > src->width ) sw = src->width - sx; \
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if ( (sy + sh) > src->height ) sh = src->height - sy; \
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if ( (dx + sw) > dst->width ) sw = dst->width - dx; \
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if ( (dy + sh) > dst->height ) sh = dst->height - dy; \
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if (sw <= 0 || sh <= 0) \
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return;
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BEGIN_METHOD(Image_Copy, GB_INTEGER x; GB_INTEGER y; GB_INTEGER w; GB_INTEGER h)
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CIMAGE *image;
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int x = VARGOPT(x, 0);
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int y = VARGOPT(y, 0);
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int w = VARGOPT(w, THIS_IMAGE->width);
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int h = VARGOPT(h, THIS_IMAGE->height);
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if (x < 0) { w += x; x = 0; }
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if (y < 0) { h += y; y = 0; }
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if ((x + w) > THIS_IMAGE->width) { w = THIS_IMAGE->width - x; }
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if ((y + h) > THIS_IMAGE->height) { h = THIS_IMAGE->height - y; }
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image = GB.New(GB.FindClass("Image"), NULL, NULL);
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IMAGE_create(&image->image, w, h, THIS_IMAGE->format);
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if (w > 0 && h > 0)
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IMAGE_bitblt(&image->image, 0, 0, -1, -1, THIS_IMAGE, x, y, w, h);
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GB.ReturnObject(image);
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END_METHOD
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BEGIN_METHOD(Image_Resize, GB_INTEGER width; GB_INTEGER height)
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GB_IMG tmp;
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int w = VARG(width);
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int h = VARG(height);
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if (w < 0) w = THIS_IMAGE->width;
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if (h < 0) h = THIS_IMAGE->height;
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//IMAGE_convert(THIS_IMAGE, IMAGE_get_default_format());
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//fprintf(stderr, "format = %d\n", THIS_IMAGE->format);
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tmp.ob = THIS_IMAGE->ob;
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IMAGE_create(&tmp, w, h, THIS_IMAGE->format);
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IMAGE_bitblt(&tmp, 0, 0, -1, -1, THIS_IMAGE, 0, 0, w, h);
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IMAGE_delete(THIS_IMAGE);
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*THIS_IMAGE = tmp;
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD(Image_Mirror, GB_BOOLEAN horz; GB_BOOLEAN vert)
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GB_IMG tmp;
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tmp.ob = THIS_IMAGE->ob;
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IMAGE_create(&tmp, THIS_IMAGE->width, THIS_IMAGE->height, THIS_IMAGE->format);
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IMAGE_mirror(THIS_IMAGE, &tmp, VARG(horz), VARG(vert));
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IMAGE_delete(THIS_IMAGE);
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*THIS_IMAGE = tmp;
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD_VOID(Image_RotateLeft)
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GB_IMG tmp;
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tmp.ob = THIS_IMAGE->ob;
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IMAGE_create(&tmp, THIS_IMAGE->height, THIS_IMAGE->width, THIS_IMAGE->format);
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IMAGE_rotate(THIS_IMAGE, &tmp, TRUE);
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IMAGE_delete(THIS_IMAGE);
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*THIS_IMAGE = tmp;
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD_VOID(Image_RotateRight)
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GB_IMG tmp;
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tmp.ob = THIS_IMAGE->ob;
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IMAGE_create(&tmp, THIS_IMAGE->height, THIS_IMAGE->width, THIS_IMAGE->format);
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IMAGE_rotate(THIS_IMAGE, &tmp, FALSE);
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IMAGE_delete(THIS_IMAGE);
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*THIS_IMAGE = tmp;
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GB.ReturnObject(THIS);
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END_METHOD
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#if 0
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BEGIN_METHOD(CIMAGE_transform, GB_FLOAT sx; GB_FLOAT sy; GB_FLOAT dx; GB_FLOAT dy)
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CIMAGE *image;
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int w, h;
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double dx = VARG(dx);
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double dy = VARG(dy);
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double f, s;
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GB.New(POINTER(&image), GB.FindClass("Image"), NULL, NULL);
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GB.ReturnObject(image);
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f = fabs(dx);
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if (f > fabs(dy))
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f = fabs(dy);
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s = 1 / sqrt(dx * dx + dy * dy);
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w = (int)(THIS_IMAGE->width * (1.0 + f) * s + 0.5);
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h = (int)(THIS_IMAGE->height * (1.0 + f) * s + 0.5);
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if (!w || !h)
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return;
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IMAGE_create(&image->image, w, h, THIS_IMAGE->format);
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IMAGE_transform(&image->image, THIS_IMAGE, VARG(sx), VARG(sy), VARG(dx), VARG(dy));
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END_METHOD
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#endif
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BEGIN_METHOD(Image_DrawAlpha, GB_OBJECT image; GB_INTEGER x; GB_INTEGER y; GB_INTEGER srcx; GB_INTEGER srcy; GB_INTEGER srcw; GB_INTEGER srch)
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CIMAGE *image = VARG(image);
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if (GB.CheckObject(image))
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return;
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IMAGE_draw_alpha(THIS_IMAGE, VARGOPT(x, 0), VARGOPT(y, 0), &image->image, VARGOPT(srcx, 0), VARGOPT(srcy, 0), VARGOPT(srcw, -1), VARGOPT(srch, -1));
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD(Image_DrawImage, GB_OBJECT image; GB_INTEGER x; GB_INTEGER y; GB_INTEGER w; GB_INTEGER h; GB_INTEGER srcx; GB_INTEGER srcy; GB_INTEGER srcw; GB_INTEGER srch)
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CIMAGE *image = VARG(image);
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if (GB.CheckObject(image))
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return;
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IMAGE_bitblt(THIS_IMAGE, VARGOPT(x, 0), VARGOPT(y, 0), VARGOPT(w, -1), VARGOPT(h, -1), &image->image, VARGOPT(srcx, 0), VARGOPT(srcy, 0), VARGOPT(srcw, -1), VARGOPT(srch, -1));
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD(Image_PaintImage, GB_OBJECT image; GB_INTEGER x; GB_INTEGER y; GB_INTEGER w; GB_INTEGER h; GB_INTEGER srcx; GB_INTEGER srcy; GB_INTEGER srcw; GB_INTEGER srch)
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CIMAGE *image = VARG(image);
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if (GB.CheckObject(image))
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return;
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IMAGE_compose(THIS_IMAGE, VARGOPT(x, 0), VARGOPT(y, 0), VARGOPT(w, -1), VARGOPT(h, -1), &image->image, VARGOPT(srcx, 0), VARGOPT(srcy, 0), VARGOPT(srcw, -1), VARGOPT(srch, -1));
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_PROPERTY(Image_Format)
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char *format;
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int fmt;
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if (READ_PROPERTY)
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{
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GB.ReturnConstZeroString(IMAGE_format_to_string(THIS_IMAGE->format));
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}
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else
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{
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format = GB.ToZeroString(PROP(GB_STRING));
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if (!strcasecmp(format, "BGRA"))
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fmt = GB_IMAGE_BGRA;
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else if (!strcasecmp(format, "BGRP"))
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fmt = GB_IMAGE_BGRP;
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else if (!strcasecmp(format, "RGBA"))
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fmt = GB_IMAGE_RGBA;
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else if (!strcasecmp(format, "RGBP"))
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fmt = GB_IMAGE_RGBP;
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else
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{
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GB.Error("Unsupported conversion");
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return;
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}
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IMAGE_convert(THIS_IMAGE, fmt);
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}
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END_PROPERTY
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BEGIN_PROPERTY(Image_Debug)
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if (READ_PROPERTY)
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GB.ReturnBoolean(IMAGE_debug);
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else
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IMAGE_debug = VPROP(GB_BOOLEAN);
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END_PROPERTY
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BEGIN_METHOD(Image_Opacity, GB_FLOAT opacity)
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int alpha = VARG(opacity) * 255;
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if (alpha < 0)
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alpha = 0;
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else if (alpha > 255)
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alpha = 255;
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IMAGE_set_opacity(THIS_IMAGE, (uchar)alpha);
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_METHOD(Image_Blur, GB_INTEGER radius)
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IMAGE_blur(THIS_IMAGE, VARGOPT(radius, 8));
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GB.ReturnObject(THIS);
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END_METHOD
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BEGIN_PROPERTY(Image_Pixels)
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GB_ARRAY array;
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int size;
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if (!GB_IMAGE_FMT_IS_32_BITS(THIS_IMAGE->format))
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{
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GB.Error("Image format must be 32 bits");
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return;
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}
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size = THIS_IMAGE->width * THIS_IMAGE->height;
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if (READ_PROPERTY)
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{
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GB.Array.New(&array, GB_T_INTEGER, size);
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IMAGE_get_pixels(THIS_IMAGE, GB.Array.Get(array, 0));
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GB.ReturnObject(array);
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}
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else
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{
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array = VPROP(GB_OBJECT);
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if (GB.CheckObject(array))
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return;
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if (GB.Array.Count(array) < size)
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{
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GB.Error("Not enough pixels");
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return;
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}
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IMAGE_set_pixels(THIS_IMAGE, GB.Array.Get(array, 0));
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}
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END_PROPERTY
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BEGIN_METHOD(Image_BrightnessContrat, GB_FLOAT brightness; GB_FLOAT contrast)
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IMAGE_balance(THIS_IMAGE, VARG(brightness) * 255, VARG(contrast) * 255, 0, 0);
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GB.ReturnObject(THIS);
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END_METHOD
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//---------------------------------------------------------------------------
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GB_DESC CImageDesc[] =
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{
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GB_DECLARE("Image", sizeof(CIMAGE)),
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GB_CONSTANT("Standard", "i", 0),
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GB_CONSTANT("Premultiplied", "i", 1),
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GB_STATIC_PROPERTY("Debug", "b", Image_Debug),
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GB_METHOD("_new", NULL, Image_new, "[(Width)i(Height)i(Color)i(Format)i]"),
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GB_METHOD("_free", NULL, Image_free, NULL),
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GB_METHOD("_get", "i", Image_get, "(X)i(Y)i"),
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GB_METHOD("_put", NULL, Image_put, "(Color)i(X)i(Y)i"),
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GB_PROPERTY_READ("Width", "i", Image_Width),
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GB_PROPERTY_READ("Height", "i", Image_Height),
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GB_PROPERTY_READ("W", "i", Image_Width),
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GB_PROPERTY_READ("H", "i", Image_Height),
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GB_PROPERTY_READ("Depth", "i", Image_Depth),
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GB_PROPERTY_READ("Data", "p", Image_Data),
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GB_PROPERTY("Format", "s", Image_Format),
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GB_PROPERTY("Pixels", "Integer[]", Image_Pixels),
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GB_METHOD("Clear", NULL, Image_Clear, NULL),
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GB_METHOD("Fill", "Image", Image_Fill, "(Color)i"),
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GB_METHOD("Gray", "Image", Image_Gray, NULL),
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GB_METHOD("Transparent", "Image", Image_Transparent, "[(Color)i]"),
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GB_METHOD("Desaturate", "Image", Image_Desaturate, NULL),
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GB_METHOD("Erase", "Image", Image_Erase, "[(Color)i]"),
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GB_METHOD("Replace", "Image", Image_Replace, "(OldColor)i(NewColor)i[(NotEqual)b]"),
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GB_METHOD("Colorize", "Image", Image_Colorize, "(Color)i"),
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GB_METHOD("Mask", "Image", Image_Mask, "(Color)i"),
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GB_METHOD("Opacity", "Image", Image_Opacity, "(Opacity)f"),
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GB_METHOD("Copy", "Image", Image_Copy, "[(X)i(Y)i(Width)i(Height)i]"),
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GB_METHOD("Resize", "Image", Image_Resize, "(Width)i(Height)i"),
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GB_METHOD("Mirror", "Image", Image_Mirror, "(Horizontal)b(Vertical)b"),
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GB_METHOD("RotateLeft", "Image", Image_RotateLeft, NULL),
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GB_METHOD("RotateRight", "Image", Image_RotateRight, NULL),
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GB_METHOD("FillRect", "Image", Image_FillRect, "(X)i(Y)i(Width)i(Height)i(Color)i"),
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GB_METHOD("PaintRect", "Image", Image_PaintRect, "(X)i(Y)i(Width)i(Height)i(Color)i"),
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GB_METHOD("DrawAlpha", "Image", Image_DrawAlpha, "(Image)Image;[(X)i(Y)i(SrcX)i(SrcY)i(SrcWidth)i(SrcHeight)i]"),
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GB_METHOD("DrawImage", "Image", Image_DrawImage, "(Image)Image;[(X)i(Y)i(Width)i(Height)i(SrcX)i(SrcY)i(SrcWidth)i(SrcHeight)i]"),
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GB_METHOD("PaintImage", "Image", Image_PaintImage, "(Image)Image;[(X)i(Y)i(Width)i(Height)i(SrcX)i(SrcY)i(SrcWidth)i(SrcHeight)i]"),
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GB_METHOD("Fuzzy", "Image", Image_Blur, "[(Radius)i]"),
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GB_METHOD("BrightnessContrast", "Image", Image_BrightnessContrat, "(Brightness)f(Contrats)f"),
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GB_END_DECLARE
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};
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