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mirror of https://github.com/imgproxy/imgproxy.git synced 2024-12-04 09:42:31 +02:00
imgproxy/vips.h
2017-10-05 22:50:41 +06:00

184 lines
4.2 KiB
C

#include <stdlib.h>
#include <vips/vips.h>
#include <vips/vips7compat.h>
#define VIPS_SUPPORT_SMARTCROP \
(VIPS_MAJOR_VERSION > 8 || (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION >= 5))
#define VIPS_SUPPORT_GIF \
VIPS_MAJOR_VERSION > 8 || (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION >= 3)
enum types {
JPEG = 0,
PNG,
WEBP,
GIF
};
int
vips_initialize() {
return vips_init("imgproxy");
}
void
clear_image(VipsImage **in) {
if (G_IS_OBJECT(*in)) g_clear_object(in);
}
void
g_free_go(void **buf) {
g_free(*buf);
}
VipsAccess
access_mode(int random) {
if (random > 0) return VIPS_ACCESS_RANDOM;
return VIPS_ACCESS_SEQUENTIAL;
}
void
swap_and_clear(VipsImage **in, VipsImage *out) {
clear_image(in);
*in = out;
}
int
vips_type_find_load_go(int imgtype) {
if (imgtype == JPEG) {
return vips_type_find("VipsOperation", "jpegload");
}
if (imgtype == PNG) {
return vips_type_find("VipsOperation", "pngload");
}
if (imgtype == WEBP) {
return vips_type_find("VipsOperation", "webpload");
}
if (imgtype == GIF) {
return vips_type_find("VipsOperation", "gifload");
}
return 0;
}
int
vips_type_find_save_go(int imgtype) {
if (imgtype == JPEG) {
return vips_type_find("VipsOperation", "jpegsave_buffer");
}
if (imgtype == PNG) {
return vips_type_find("VipsOperation", "pngsave_buffer");
}
if (imgtype == WEBP) {
return vips_type_find("VipsOperation", "webpsave_buffer");
}
return 0;
}
int
vips_jpegload_buffer_go(void *buf, size_t len, VipsImage **out, int random) {
return vips_jpegload_buffer(buf, len, out, "access", access_mode(random), NULL);
}
int
vips_pngload_buffer_go(void *buf, size_t len, VipsImage **out, int random) {
return vips_pngload_buffer(buf, len, out, "access", access_mode(random), NULL);
}
int
vips_gifload_buffer_go(void *buf, size_t len, VipsImage **out, int random) {
#if VIPS_SUPPORT_GIF
return vips_gifload_buffer(buf, len, out, "access", access_mode(random), NULL);
#else
return 0;
#endif
}
int
vips_webpload_buffer_go(void *buf, size_t len, VipsImage **out, int random) {
return vips_webpload_buffer(buf, len, out, "access", access_mode(random), NULL);
}
int
vips_resize_go(VipsImage *in, VipsImage **out, double scale) {
return vips_resize(in, out, scale, NULL);
}
int
vips_support_smartcrop() {
#if VIPS_SUPPORT_SMARTCROP
return 1;
#else
return 0;
#endif
}
int
vips_smartcrop_go(VipsImage *in, VipsImage **out, int width, int height) {
#if VIPS_SUPPORT_SMARTCROP
return vips_smartcrop(in, out, width, height, NULL);
#else
return 0;
#endif
}
int
vips_colourspace_go(VipsImage *in, VipsImage **out, VipsInterpretation space) {
return vips_colourspace(in, out, space, NULL);
}
int
vips_extract_area_go(VipsImage *in, VipsImage **out, int left, int top, int width, int height) {
return vips_extract_area(in, out, left, top, width, height, NULL);
}
int
vips_process_image(VipsImage **img, int resize, double scale, int crop, int smart, int left, int top, int width, int height) {
VipsImage *tmp;
int err;
if (resize > 0) {
err = vips_resize_go(*img, &tmp, scale);
swap_and_clear(img, tmp);
if (err> 0) { return 1; }
}
if (crop > 0) {
if (smart > 0) {
err = vips_smartcrop_go(*img, &tmp, width, height);
swap_and_clear(img, tmp);
if (err> 0) { return 1; }
} else {
vips_extract_area_go(*img, &tmp, left, top, width, height);
swap_and_clear(img, tmp);
if (err> 0) { return 1; }
}
}
if (vips_image_guess_interpretation(*img) != VIPS_INTERPRETATION_sRGB) {
err = vips_colourspace_go(*img, &tmp, VIPS_INTERPRETATION_sRGB);
swap_and_clear(img, tmp);
}
return err;
}
int
vips_jpegsave_go(VipsImage *in, void **buf, size_t *len, int strip, int quality, int interlace) {
return vips_jpegsave_buffer(in, buf, len, "strip", strip, "Q", quality, "optimize_coding", TRUE, "interlace", interlace, NULL);
}
int
vips_pngsave_go(VipsImage *in, void **buf, size_t *len) {
return vips_pngsave_buffer(in, buf, len, "filter", VIPS_FOREIGN_PNG_FILTER_NONE, NULL);
}
int
vips_webpsave_go(VipsImage *in, void **buf, size_t *len, int strip, int quality) {
return vips_webpsave_buffer(in, buf, len, "strip", strip, "Q", quality, NULL);
}
void
vips_cleanup() {
vips_thread_shutdown();
vips_error_clear();
}