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/* $Id: fb_imlib2.c,v 1.8 2002/09/09 14:00:42 ukai Exp $ */
/**************************************************************************
fb_imlib2.c 0.3 Copyright (C) 2002, hito
**************************************************************************/
#include <X11/Xlib.h>
#include <Imlib2.h>
#include "fb.h"
#include "fb_img.h"
static void draw(FB_IMAGE * img, Imlib_Image image);
static Imlib_Image resize_image(Imlib_Image image, int width, int height);
int
get_image_size(char *filename, int *w, int *h)
{
Imlib_Image image;
if (filename == NULL)
return 1;
image = imlib_load_image(filename);
if (image == NULL)
return 1;
imlib_context_set_image(image);
*w = imlib_image_get_width();
*h = imlib_image_get_height();
imlib_free_image();
return 0;
}
FB_IMAGE **
fb_image_load(char *filename, int w, int h)
{
Imlib_Image image;
FB_IMAGE **frame;
if (filename == NULL)
return NULL;
image = imlib_load_image(filename);
if (image == NULL)
return NULL;
image = resize_image(image, w, h);
if (image == NULL)
return NULL;
imlib_context_set_image(image);
w = imlib_image_get_width();
h = imlib_image_get_height();
frame = fb_frame_new(w, h, 1);
if (frame == NULL) {
imlib_free_image();
return NULL;
}
draw(frame[0], image);
imlib_free_image();
return frame;
}
static void
draw(FB_IMAGE * img, Imlib_Image image)
{
int i, j, r, g, b, a = 0, offset;
DATA32 *data;
if (img == NULL)
return;
imlib_context_set_image(image);
data = imlib_image_get_data_for_reading_only();
for (j = 0; j < img->height; j++) {
offset = img->width * j;
for (i = 0; i < img->width; i++) {
a = (data[offset + i] >> 24) & 0x000000ff;
r = (data[offset + i] >> 16) & 0x000000ff;
g = (data[offset + i] >> 8) & 0x000000ff;
b = (data[offset + i]) & 0x000000ff;
if (a == 0) {
fb_image_pset(img, i, j, bg_r, bg_g, bg_b);
}
else {
fb_image_pset(img, i, j, r, g, b);
}
}
}
return;
}
static Imlib_Image
resize_image(Imlib_Image image, int width, int height)
{
Imlib_Image resized_image;
int w, h;
if (image == NULL)
return NULL;
imlib_context_set_image(image);
w = imlib_image_get_width();
h = imlib_image_get_height();
if (width < 1 || height < 1)
return image;
if (w == width && h == height)
return image;
resized_image =
imlib_create_cropped_scaled_image(0, 0, w, h, width, height);
imlib_free_image();
return resized_image;
}
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