Added quick'n'bad debayer implementation for previews
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5c0611c64f
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11
main.c
11
main.c
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@ -15,6 +15,7 @@
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#include <gtk/gtk.h>
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#include "ini.h"
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#include "bayer.h"
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#include "quickdebayer.h"
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enum io_method {
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IO_METHOD_READ,
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@ -370,12 +371,14 @@ process_image(const int *p, int size)
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method = DC1394_BAYER_METHOD_SIMPLE;
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// method = DC1394_BAYER_METHOD_VNG is slightly sharper but takes 10 seconds;
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pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, current_width, current_height);
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} else {
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pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, current_width / 2, current_height / 2);
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}
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pixels = gdk_pixbuf_get_pixels(pixbuf);
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dc1394_bayer_decoding_8bit((const uint8_t *) p, pixels, current_width, current_height, filter, method);
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} else {
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pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, current_width / 6, current_height / 6);
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pixels = gdk_pixbuf_get_pixels(pixbuf);
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quick_debayer_bggr8((const uint8_t *)p, pixels, current_width, current_height, 3);
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}
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if (current_rotate == 0) {
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pixbufrot = pixbuf;
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} else if (current_rotate == 90) {
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@ -4,7 +4,7 @@ gtkdep = dependency('gtk+-3.0')
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cc = meson.get_compiler('c')
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libm = cc.find_library('m', required: false)
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executable('megapixels', 'main.c', 'ini.c', 'bayer.c', dependencies : [gtkdep, libm], install : true)
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executable('megapixels', 'main.c', 'ini.c', 'bayer.c', 'quickdebayer.c', dependencies : [gtkdep, libm], install : true)
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install_data(['camera.glade', 'camera.css'],
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install_dir : get_option('datadir') / 'megapixels/ui')
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@ -0,0 +1,29 @@
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#include "quickdebayer.h"
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// Fast but bad debayer method that scales and rotates by skipping source pixels and
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// doesn't interpolate any values at all
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void
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quick_debayer_bggr8(const uint8_t *source, uint8_t *destination, int width, int height, int skip)
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{
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int byteskip = 2 * skip;
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int input_size = width * height;
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int i;
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int j=0;
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int row_left = width;
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// B G
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// G R
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for(i=0;i<input_size;) {
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destination[j++] = source[i+width+1];
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destination[j++] = source[i+1];
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destination[j++] = source[i];
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i = i + byteskip;
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row_left = row_left - byteskip;
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if(row_left <= 0){
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row_left = width;
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i = i+width;
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i = i + (width * 2 * (skip-1));
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}
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}
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}
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@ -0,0 +1,4 @@
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#include <stdint.h>
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void quick_debayer_bggr8(const uint8_t *source, uint8_t *destination, int width, int height, int skip);
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