151 lines
2.8 KiB
C
151 lines
2.8 KiB
C
/**************************************************************************
|
|
fb_imlib2.c 0.2 Copyright (C) 2002, hito
|
|
**************************************************************************/
|
|
|
|
#include "fb.h"
|
|
#include "fb_img.h"
|
|
|
|
static void set_prm(IMAGE *img);
|
|
|
|
IMAGE *fb_load_image(char *filename, int w, int h)
|
|
{
|
|
Imlib_Image image;
|
|
IMAGE *img;
|
|
|
|
if(filename == NULL)
|
|
return NULL;
|
|
|
|
img = malloc(sizeof(*img));
|
|
if(img == NULL)
|
|
return NULL;
|
|
|
|
image = imlib_load_image(filename);
|
|
if(image == NULL){
|
|
free(img);
|
|
return NULL;
|
|
}
|
|
|
|
imlib_context_set_image(image);
|
|
|
|
img->image = image;
|
|
set_prm(img);
|
|
|
|
fb_resize_image(img, w, h);
|
|
|
|
return img;
|
|
}
|
|
|
|
int fb_draw_image(IMAGE *img, int x, int y, int sx, int sy, int width, int height)
|
|
{
|
|
int i, j, r, g, b, a = 0, offset;
|
|
|
|
if(img == NULL)
|
|
return 1;
|
|
|
|
for(j = sy; j < sy + height && j < img->height; j++){
|
|
offset = j * img->width;
|
|
for(i = sx; i < sx + width && i < img->width; i++){
|
|
a = (img->data[offset + i] >> 24) & 0x000000ff;
|
|
r = (img->data[offset + i] >> 16) & 0x000000ff;
|
|
g = (img->data[offset + i] >> 8) & 0x000000ff;
|
|
b = (img->data[offset + i] ) & 0x000000ff;
|
|
|
|
if(a == 0)
|
|
fb_pset(i + x - sx, j + y - sy, bg_r, bg_g, bg_b);
|
|
else
|
|
fb_pset(i + x - sx, j + y - sy, r, g, b);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int fb_resize_image(IMAGE *img, int width, int height)
|
|
{
|
|
Imlib_Image image;
|
|
|
|
if(width < 1 || height < 1 || img == NULL)
|
|
return 1;
|
|
|
|
if(width == img->width && height == img->height)
|
|
return 0;
|
|
|
|
image = imlib_create_cropped_scaled_image(0, 0, img->width, img->height, width, height);
|
|
if(image == NULL)
|
|
return 1;
|
|
|
|
imlib_context_set_image(img->image);
|
|
imlib_free_image();
|
|
|
|
img->image = image;
|
|
set_prm(img);
|
|
return 0;
|
|
}
|
|
|
|
void fb_free_image(IMAGE *img)
|
|
{
|
|
if(img == NULL)
|
|
return;
|
|
|
|
imlib_context_set_image(img->image);
|
|
imlib_free_image();
|
|
free(img);
|
|
}
|
|
|
|
IMAGE *fb_dup_image(IMAGE *img)
|
|
{
|
|
Imlib_Image image;
|
|
IMAGE *new_img;
|
|
|
|
if(img == NULL)
|
|
return NULL;
|
|
|
|
new_img = malloc(sizeof(*img));
|
|
if(new_img == NULL)
|
|
return NULL;
|
|
|
|
imlib_context_set_image(img->image);
|
|
image = imlib_clone_image();
|
|
|
|
if(image == NULL){
|
|
free(new_img);
|
|
return NULL;
|
|
}
|
|
|
|
new_img->image = image;
|
|
set_prm(new_img);
|
|
return new_img;
|
|
}
|
|
|
|
int fb_rotate_image(IMAGE *img, int angle)
|
|
{
|
|
int orientation;
|
|
|
|
if(img == NULL)
|
|
return 1;
|
|
|
|
imlib_context_set_image(img->image);
|
|
|
|
if(angle == 90){
|
|
orientation = 1;
|
|
}else if(angle == -90){
|
|
orientation = 3;
|
|
}else{
|
|
return 1;
|
|
}
|
|
|
|
imlib_image_orientate(orientation);
|
|
set_prm(img);
|
|
return 0;
|
|
}
|
|
|
|
static void set_prm(IMAGE *img)
|
|
{
|
|
if(img == NULL)
|
|
return;
|
|
|
|
imlib_context_set_image(img->image);
|
|
img->data = imlib_image_get_data_for_reading_only();
|
|
img->width = imlib_image_get_width();
|
|
img->height = imlib_image_get_height();
|
|
}
|