105 lines
1.8 KiB
C
105 lines
1.8 KiB
C
#ifndef _HAVE_PIXBUF_H
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#define _HAVE_PIXBUF_H
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typedef struct Pixbuf Pixbuf;
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typedef struct PixbufPixel PixbufPixel;
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typedef enum PixbufFormat
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{
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PB_FMT_RGBA
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}
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PixbufFormat;
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struct PixbufPixel
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{
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unsigned char r,g,b,a;
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};
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struct Pixbuf
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{
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int *data;
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int bytes_per_pixel; /* bits per pixel = bpp << 3 */
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int channels; /* 4 with alpha */
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int width, height;
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int bytes_per_line; /* ( width * bpp ) */
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int refcnt; /* starts at 0 */
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void *meta; /* for jpeg meta text ? to a hash ? */
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/* Possibles */
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int rmask, gmask, bmask, amask; /* Masks - good for packed formats > */
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int has_alpha; /* Rather than channels ? */
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/* PixbufFormat format; like GL format */
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};
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Pixbuf*
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pixbuf_new_from_file(const char *filename);
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Pixbuf*
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pixbuf_new(int width, int height);
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void
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pixbuf_unref(Pixbuf *pixb);
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void
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pixbuf_ref(Pixbuf *pixb);
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void
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pixbuf_set_pixel(Pixbuf *pixb, int x, int y, PixbufPixel *p);
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void
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pixbuf_get_pixel(Pixbuf *pixbuf, int x, int y, PixbufPixel *p);
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void
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pixel_set_vals(PixbufPixel *p,
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const unsigned char r,
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const unsigned char g,
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const unsigned char b,
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const unsigned char a);
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void
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pixbuf_copy(Pixbuf *src_pixb,
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Pixbuf *dst_pixb,
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int srcx,
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int srcy,
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int srcw,
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int srch,
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int dstx,
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int dsty);
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void
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pixbuf_fill_rect(Pixbuf *pixb,
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int x,
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int y,
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int width,
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int height,
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PixbufPixel *p);
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Pixbuf*
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pixbuf_scale_down(Pixbuf *pixb,
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int new_width,
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int new_height);
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Pixbuf*
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pixbuf_clone(Pixbuf *pixb);
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Pixbuf*
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pixbuf_convolve(Pixbuf *pixb,
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int *kernel,
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int kernel_size,
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int kernel_divisor) ;
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Pixbuf*
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pixbuf_blur(Pixbuf *pixb);
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Pixbuf*
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pixbuf_sharpen(Pixbuf *pixb);
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#endif
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