gambas-source-code/main/lib/image/CImage.c
Benoît Minisini 6a793ddeb7 Replace my old depracted gmail mail by the new one.
[CONFIGURATION]
* NEW: Replace my old depracted gmail mail by the new one.
2022-09-12 15:13:13 +02:00

598 lines
15 KiB
C

/***************************************************************************
CImage.c
(c) 2000-2017 Benoît Minisini <benoit.minisini@gambas-basic.org>
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, or (at your option)
any later version.
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., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.
***************************************************************************/
#define __CIMAGE_C
#include "main.h"
#include "image.h"
#include "CImage.h"
static int _balance = 0;
static double _brightness = 0;
static double _contrast = 0;
static double _gamma = 0;
static double _hue = 0;
static double _saturation = 0;
static double _lightness = 0;
BEGIN_METHOD(Image_new, GB_INTEGER w; GB_INTEGER h; GB_INTEGER col; GB_INTEGER format)
int format = IMAGE_get_default_format();
if (VARGOPT(format, 0) == 1)
format = GB_IMAGE_FMT_SET_PREMULTIPLIED(format);
IMAGE_create(THIS_IMAGE, VARGOPT(w, 0), VARGOPT(h, 0), format);
if (!MISSING(col))
IMAGE_fill(THIS_IMAGE, VARG(col));
END_METHOD
BEGIN_METHOD_VOID(Image_free)
IMAGE_delete(THIS_IMAGE);
END_METHOD
BEGIN_PROPERTY(Image_Width)
GB.ReturnInteger(THIS_IMAGE->width);
END_PROPERTY
BEGIN_PROPERTY(Image_Height)
GB.ReturnInteger(THIS_IMAGE->height);
END_PROPERTY
BEGIN_PROPERTY(Image_Depth)
GB.ReturnInteger(32);
END_PROPERTY
BEGIN_METHOD(Image_Fill, GB_INTEGER col)
IMAGE_fill(THIS_IMAGE, VARG(col));
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_FillRect, GB_INTEGER x; GB_INTEGER y; GB_INTEGER width; GB_INTEGER height; GB_INTEGER col)
IMAGE_fill_rect(THIS_IMAGE, VARG(x), VARG(y), VARG(width), VARG(height), VARG(col), TRUE);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_PaintRect, GB_INTEGER x; GB_INTEGER y; GB_INTEGER width; GB_INTEGER height; GB_INTEGER col)
IMAGE_fill_rect(THIS_IMAGE, VARG(x), VARG(y), VARG(width), VARG(height), VARG(col), FALSE);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_get, GB_INTEGER x; GB_INTEGER y)
GB.ReturnInteger(IMAGE_get_pixel(THIS_IMAGE, VARG(x), VARG(y)));
END_METHOD
BEGIN_METHOD(Image_put, GB_INTEGER col; GB_INTEGER x; GB_INTEGER y)
IMAGE_set_pixel(THIS_IMAGE, VARG(x), VARG(y), VARG(col));
END_METHOD
BEGIN_PROPERTY(Image_Data)
GB.ReturnPointer((void *)THIS_IMAGE->data);
END_PROPERTY
BEGIN_METHOD_VOID(Image_Desaturate)
IMAGE_make_gray(THIS_IMAGE);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD_VOID(Image_Gray)
fprintf(stderr, "warning: Image.Gray is deprecated, use Image.Desaturate instead.\n");
Image_Desaturate(_object, _param);
END_METHOD
BEGIN_METHOD_VOID(Image_Clear)
//IMAGE_fill(THIS_IMAGE, 0XFF000000);
IMAGE_delete(THIS_IMAGE);
END_METHOD
BEGIN_METHOD(Image_Replace, GB_INTEGER src; GB_INTEGER dst; GB_BOOLEAN noteq)
IMAGE_replace(THIS_IMAGE, VARG(src), VARG(dst), VARGOPT(noteq, FALSE));
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Erase, GB_INTEGER color)
IMAGE_make_transparent(THIS_IMAGE, VARGOPT(color, 0xFFFFFF));
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD_VOID(Image_Transparent)
fprintf(stderr, "warning: Image.Transparent is deprecated, use Image.Erase instead.\n");
Image_Erase(_object, _param);
END_METHOD
BEGIN_METHOD(Image_Colorize, GB_INTEGER color)
IMAGE_colorize(THIS_IMAGE, VARG(color));
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Mask, GB_INTEGER color)
IMAGE_mask(THIS_IMAGE, VARG(color));
GB.ReturnObject(THIS);
END_METHOD
// Parameter correction
#define CHECK_PARAMETERS(dst, dx, dy, dw, dh, src, sx, sy, sw, sh) \
if ( sw < 0 ) sw = src->width; \
if ( sh < 0 ) sh = src->height; \
if (dw < 0) dw = sw; \
if (dh < 0) dh = sh; \
if (dw != sw || dh != sh) \
{ \
GB.Error("Stretching images is not implemented in gb.image"); \
return; \
} \
if ( sx < 0 ) { dx -= sx; dw += sx; sw += sx; sx = 0; } \
if ( sy < 0 ) { dy -= sy; dh += sy; sh += sy; sy = 0; } \
if ( dx < 0 ) { sx -= dx; sw += dx; dx = 0; } \
if ( dy < 0 ) { sy -= dy; sh += dy; dy = 0; } \
if ( (sx + sw) > src->width ) sw = src->width - sx; \
if ( (sy + sh) > src->height ) sh = src->height - sy; \
if ( (dx + sw) > dst->width ) sw = dst->width - dx; \
if ( (dy + sh) > dst->height ) sh = dst->height - dy; \
if (sw <= 0 || sh <= 0) \
return;
BEGIN_METHOD(Image_Copy, GB_INTEGER x; GB_INTEGER y; GB_INTEGER w; GB_INTEGER h)
CIMAGE *image;
int x = VARGOPT(x, 0);
int y = VARGOPT(y, 0);
int w = VARGOPT(w, THIS_IMAGE->width);
int h = VARGOPT(h, THIS_IMAGE->height);
if (x < 0) { w += x; x = 0; }
if (y < 0) { h += y; y = 0; }
if ((x + w) > THIS_IMAGE->width) { w = THIS_IMAGE->width - x; }
if ((y + h) > THIS_IMAGE->height) { h = THIS_IMAGE->height - y; }
image = GB.New(GB.FindClass("Image"), NULL, NULL);
IMAGE_create(&image->image, w, h, THIS_IMAGE->format);
if (w > 0 && h > 0)
IMAGE_bitblt(&image->image, 0, 0, -1, -1, THIS_IMAGE, x, y, w, h);
GB.ReturnObject(image);
END_METHOD
BEGIN_METHOD(Image_Resize, GB_INTEGER width; GB_INTEGER height)
GB_IMG tmp;
int w = VARG(width);
int h = VARG(height);
if (w < 0) w = THIS_IMAGE->width;
if (h < 0) h = THIS_IMAGE->height;
//IMAGE_convert(THIS_IMAGE, IMAGE_get_default_format());
//fprintf(stderr, "format = %d\n", THIS_IMAGE->format);
tmp.ob = THIS_IMAGE->ob;
IMAGE_create(&tmp, w, h, THIS_IMAGE->format);
IMAGE_bitblt(&tmp, 0, 0, -1, -1, THIS_IMAGE, 0, 0, w, h);
IMAGE_delete(THIS_IMAGE);
*THIS_IMAGE = tmp;
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Mirror, GB_BOOLEAN horz; GB_BOOLEAN vert)
GB_IMG tmp;
tmp.ob = THIS_IMAGE->ob;
IMAGE_create(&tmp, THIS_IMAGE->width, THIS_IMAGE->height, THIS_IMAGE->format);
IMAGE_mirror(THIS_IMAGE, &tmp, VARG(horz), VARG(vert));
IMAGE_delete(THIS_IMAGE);
*THIS_IMAGE = tmp;
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD_VOID(Image_RotateLeft)
GB_IMG tmp;
tmp.ob = THIS_IMAGE->ob;
IMAGE_create(&tmp, THIS_IMAGE->height, THIS_IMAGE->width, THIS_IMAGE->format);
IMAGE_rotate(THIS_IMAGE, &tmp, TRUE);
IMAGE_delete(THIS_IMAGE);
*THIS_IMAGE = tmp;
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD_VOID(Image_RotateRight)
GB_IMG tmp;
tmp.ob = THIS_IMAGE->ob;
IMAGE_create(&tmp, THIS_IMAGE->height, THIS_IMAGE->width, THIS_IMAGE->format);
IMAGE_rotate(THIS_IMAGE, &tmp, FALSE);
IMAGE_delete(THIS_IMAGE);
*THIS_IMAGE = tmp;
GB.ReturnObject(THIS);
END_METHOD
#if 0
BEGIN_METHOD(CIMAGE_transform, GB_FLOAT sx; GB_FLOAT sy; GB_FLOAT dx; GB_FLOAT dy)
CIMAGE *image;
int w, h;
double dx = VARG(dx);
double dy = VARG(dy);
double f, s;
GB.New(POINTER(&image), GB.FindClass("Image"), NULL, NULL);
GB.ReturnObject(image);
f = fabs(dx);
if (f > fabs(dy))
f = fabs(dy);
s = 1 / sqrt(dx * dx + dy * dy);
w = (int)(THIS_IMAGE->width * (1.0 + f) * s + 0.5);
h = (int)(THIS_IMAGE->height * (1.0 + f) * s + 0.5);
if (!w || !h)
return;
IMAGE_create(&image->image, w, h, THIS_IMAGE->format);
IMAGE_transform(&image->image, THIS_IMAGE, VARG(sx), VARG(sy), VARG(dx), VARG(dy));
END_METHOD
#endif
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)
CIMAGE *image = VARG(image);
if (GB.CheckObject(image))
return;
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));
GB.ReturnObject(THIS);
END_METHOD
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)
CIMAGE *image = VARG(image);
if (GB.CheckObject(image))
return;
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));
GB.ReturnObject(THIS);
END_METHOD
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)
CIMAGE *image = VARG(image);
if (GB.CheckObject(image))
return;
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));
GB.ReturnObject(THIS);
END_METHOD
BEGIN_PROPERTY(Image_Format)
int fmt;
if (READ_PROPERTY)
{
GB.ReturnConstZeroString(IMAGE_format_to_string(THIS_IMAGE->format));
}
else
{
fmt = IMAGE_format_from_string(GB.ToZeroString(PROP(GB_STRING)));
if (fmt < 0)
{
GB.Error("Unknown format");
return;
}
IMAGE_convert(THIS_IMAGE, fmt);
}
END_PROPERTY
BEGIN_PROPERTY(Image_Debug)
if (READ_PROPERTY)
GB.ReturnBoolean(IMAGE_debug);
else
IMAGE_debug = VPROP(GB_BOOLEAN);
END_PROPERTY
BEGIN_METHOD(Image_Opacity, GB_FLOAT opacity)
int alpha = VARG(opacity) * 255;
if (alpha < 0)
alpha = 0;
else if (alpha > 255)
alpha = 255;
IMAGE_set_opacity(THIS_IMAGE, (uchar)alpha);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Invert, GB_BOOLEAN keep_color)
IMAGE_invert(THIS_IMAGE, VARGOPT(keep_color, FALSE));
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Blur, GB_INTEGER radius)
IMAGE_blur(THIS_IMAGE, VARGOPT(radius, 8));
GB.ReturnObject(THIS);
END_METHOD
BEGIN_PROPERTY(Image_Pixels)
GB_ARRAY array;
int size;
if (!GB_IMAGE_FMT_IS_32_BITS(THIS_IMAGE->format))
{
GB.Error("Image format must be 32 bits");
return;
}
size = THIS_IMAGE->width * THIS_IMAGE->height;
if (READ_PROPERTY)
{
GB.Array.New(&array, GB_T_INTEGER, size);
IMAGE_get_pixels(THIS_IMAGE, GB.Array.Get(array, 0));
GB.ReturnObject(array);
}
else
{
array = VPROP(GB_OBJECT);
if (GB.CheckObject(array))
return;
if (GB.Array.Count(array) < size)
{
GB.Error("Not enough pixels");
return;
}
IMAGE_set_pixels(THIS_IMAGE, GB.Array.Get(array, 0));
}
END_PROPERTY
BEGIN_METHOD_VOID(Image_BeginBalance)
_balance++;
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD_VOID(Image_EndBalance)
if (_balance <= 0)
{
GB.Error("Missing call to BeginBalance");
return;
}
_balance--;
if (_balance == 0)
IMAGE_balance(THIS_IMAGE, _brightness * 255, _contrast * 255, _gamma * 255, _hue * 180, _saturation * 255, _lightness * 255);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Brightness, GB_FLOAT value)
if (_balance)
_brightness = VARG(value);
else
IMAGE_balance(THIS_IMAGE, VARG(value) * 255, 0, 0, 0, 0, 0);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Contrast, GB_FLOAT value)
if (_balance)
_contrast = VARG(value);
else
IMAGE_balance(THIS_IMAGE, 0, VARG(value) * 255, 0, 0, 0, 0);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Gamma, GB_FLOAT value)
if (_balance)
_gamma = VARG(value);
else
IMAGE_balance(THIS_IMAGE, 0, 0, VARG(value) * 255, 0, 0, 0);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Hue, GB_FLOAT value)
if (_balance)
_hue = VARG(value);
else
IMAGE_balance(THIS_IMAGE, 0, 0, 0, VARG(value) * 180, 0, 0);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Saturation, GB_FLOAT value)
if (_balance)
_saturation = VARG(value);
else
IMAGE_balance(THIS_IMAGE, 0, 0, 0, 0, VARG(value) * 255, 0);
GB.ReturnObject(THIS);
END_METHOD
BEGIN_METHOD(Image_Lightness, GB_FLOAT value)
if (_balance)
_lightness = VARG(value);
else
IMAGE_balance(THIS_IMAGE, 0, 0, 0, 0, 0, VARG(value) * 255);
GB.ReturnObject(THIS);
END_METHOD
//---------------------------------------------------------------------------
GB_DESC CImageDesc[] =
{
GB_DECLARE("Image", sizeof(CIMAGE)),
GB_CONSTANT("Standard", "i", 0),
GB_CONSTANT("Premultiplied", "i", 1),
GB_STATIC_PROPERTY("Debug", "b", Image_Debug),
GB_METHOD("_new", NULL, Image_new, "[(Width)i(Height)i(Color)i(Format)i]"),
GB_METHOD("_free", NULL, Image_free, NULL),
GB_METHOD("_get", "i", Image_get, "(X)i(Y)i"),
GB_METHOD("_put", NULL, Image_put, "(Color)i(X)i(Y)i"),
GB_PROPERTY_READ("Width", "i", Image_Width),
GB_PROPERTY_READ("Height", "i", Image_Height),
GB_PROPERTY_READ("W", "i", Image_Width),
GB_PROPERTY_READ("H", "i", Image_Height),
GB_PROPERTY_READ("Depth", "i", Image_Depth),
GB_PROPERTY_READ("Data", "p", Image_Data),
GB_PROPERTY("Format", "s", Image_Format),
GB_PROPERTY("Pixels", "Integer[]", Image_Pixels),
GB_METHOD("Clear", NULL, Image_Clear, NULL),
GB_METHOD("Fill", "Image", Image_Fill, "(Color)i"),
GB_METHOD("Gray", "Image", Image_Gray, NULL),
GB_METHOD("Transparent", "Image", Image_Transparent, "[(Color)i]"),
GB_METHOD("Desaturate", "Image", Image_Desaturate, NULL),
GB_METHOD("Erase", "Image", Image_Erase, "[(Color)i]"),
GB_METHOD("Replace", "Image", Image_Replace, "(OldColor)i(NewColor)i[(NotEqual)b]"),
GB_METHOD("Colorize", "Image", Image_Colorize, "(Color)i"),
GB_METHOD("Mask", "Image", Image_Mask, "(Color)i"),
GB_METHOD("Opacity", "Image", Image_Opacity, "(Opacity)f"),
GB_METHOD("Invert", "Image", Image_Invert, "[(KeepHue)b]"),
GB_METHOD("Copy", "Image", Image_Copy, "[(X)i(Y)i(Width)i(Height)i]"),
GB_METHOD("Resize", "Image", Image_Resize, "(Width)i(Height)i"),
GB_METHOD("Mirror", "Image", Image_Mirror, "(Horizontal)b(Vertical)b"),
GB_METHOD("RotateLeft", "Image", Image_RotateLeft, NULL),
GB_METHOD("RotateRight", "Image", Image_RotateRight, NULL),
GB_METHOD("FillRect", "Image", Image_FillRect, "(X)i(Y)i(Width)i(Height)i(Color)i"),
GB_METHOD("PaintRect", "Image", Image_PaintRect, "(X)i(Y)i(Width)i(Height)i(Color)i"),
GB_METHOD("DrawAlpha", "Image", Image_DrawAlpha, "(Image)Image;[(X)i(Y)i(SrcX)i(SrcY)i(SrcWidth)i(SrcHeight)i]"),
GB_METHOD("DrawImage", "Image", Image_DrawImage, "(Image)Image;[(X)i(Y)i(Width)i(Height)i(SrcX)i(SrcY)i(SrcWidth)i(SrcHeight)i]"),
GB_METHOD("PaintImage", "Image", Image_PaintImage, "(Image)Image;[(X)i(Y)i(Width)i(Height)i(SrcX)i(SrcY)i(SrcWidth)i(SrcHeight)i]"),
GB_METHOD("Fuzzy", "Image", Image_Blur, "[(Radius)i]"),
GB_METHOD("BeginBalance", "Image", Image_BeginBalance, NULL),
GB_METHOD("Brightness", "Image", Image_Brightness, "(Brightness)f"),
GB_METHOD("Contrast", "Image", Image_Contrast, "(Contrast)f"),
GB_METHOD("Gamma", "Image", Image_Gamma, "(Gamma)f"),
GB_METHOD("Hue", "Image", Image_Hue, "(Hue)f"),
GB_METHOD("Saturation", "Image", Image_Saturation, "(Saturation)f"),
GB_METHOD("Lightness", "Image", Image_Lightness, "(Lightness)f"),
GB_METHOD("EndBalance", "Image", Image_EndBalance, NULL),
GB_END_DECLARE
};