Initial QSfera import
This commit is contained in:
Курнат Андрей
+503
@@ -0,0 +1,503 @@
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// operations.c - Hand-written C bridge functions for libvips operations
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#include "lang.h"
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#include "operations.h"
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#include <unistd.h>
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static int is_16bit(VipsInterpretation interpretation);
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// Arithmetic
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int find_trim(VipsImage *in, int *left, int *top, int *width, int *height,
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double threshold, double r, double g, double b) {
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if (in->Type == VIPS_INTERPRETATION_RGB16 || in->Type == VIPS_INTERPRETATION_GREY16) {
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r = 65535 * r / 255;
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g = 65535 * g / 255;
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b = 65535 * b / 255;
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}
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double background[3] = {r, g, b};
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VipsArrayDouble *vipsBackground = vips_array_double_new(background, 3);
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int code = vips_find_trim(in, left, top, width, height, "threshold", threshold, "background", vipsBackground, NULL);
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vips_area_unref(VIPS_AREA(vipsBackground));
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return code;
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}
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int getpoint(VipsImage *in, double **vector, int n, int x, int y) {
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return vips_getpoint(in, vector, &n, x, y, NULL);
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}
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int minOp(VipsImage *in, double *out, int *x, int *y, int size) {
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return vips_min(in, out, "x", x, "y", y, "size", size, NULL);
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}
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// Color
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int is_colorspace_supported(VipsImage *in) {
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return vips_colourspace_issupported(in) ? 1 : 0;
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}
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int to_colorspace(VipsImage *in, VipsImage **out, VipsInterpretation space) {
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return vips_colourspace(in, out, space, NULL);
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}
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// https://libvips.github.io/libvips/API/8.6/libvips-colour.html#vips-icc-transform
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int icc_transform(VipsImage *in, VipsImage **out, const char *output_profile, const char *input_profile, VipsIntent intent,
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int depth, gboolean embedded) {
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return vips_icc_transform(
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in, out, output_profile,
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"input_profile", input_profile ? input_profile : "none",
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"intent", intent,
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"depth", depth ? depth : 8,
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"embedded", embedded,
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NULL);
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}
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// Conversion
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int embed_image(VipsImage *in, VipsImage **out, int left, int top, int width,
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int height, int extend) {
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return vips_embed(in, out, left, top, width, height, "extend", extend, NULL);
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}
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int embed_image_background(VipsImage *in, VipsImage **out, int left, int top, int width,
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int height, double r, double g, double b, double a) {
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double background[3] = {r, g, b};
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double backgroundRGBA[4] = {r, g, b, a};
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VipsArrayDouble *vipsBackground;
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if (in->Bands <= 3) {
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vipsBackground = vips_array_double_new(background, 3);
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} else {
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vipsBackground = vips_array_double_new(backgroundRGBA, 4);
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}
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int code = vips_embed(in, out, left, top, width, height,
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"extend", VIPS_EXTEND_BACKGROUND, "background", vipsBackground, NULL);
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vips_area_unref(VIPS_AREA(vipsBackground));
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return code;
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}
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int embed_multi_page_image(VipsImage *in, VipsImage **out, int left, int top, int width,
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int height, int extend) {
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VipsObject *base = VIPS_OBJECT(vips_image_new());
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int page_height = vips_image_get_page_height(in);
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int in_width = in->Xsize;
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int n_pages = in->Ysize / page_height;
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VipsImage **page = (VipsImage **) vips_object_local_array(base, n_pages);
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VipsImage **embedded_page = (VipsImage **) vips_object_local_array(base, n_pages);
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VipsImage **copy = (VipsImage **) vips_object_local_array(base, 1);
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// split image into cropped frames
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for (int i = 0; i < n_pages; i++) {
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if (
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vips_extract_area(in, &page[i], 0, page_height * i, in_width, page_height, NULL) ||
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vips_embed(page[i], &embedded_page[i], left, top, width, height, "extend", extend, NULL)
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) {
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g_object_unref(base);
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return -1;
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}
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}
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// reassemble frames and set page height
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// copy before modifying metadata
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if(
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vips_arrayjoin(embedded_page, ©[0], n_pages, "across", 1, NULL) ||
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vips_copy(copy[0], out, NULL)
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) {
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g_object_unref(base);
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return -1;
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}
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vips_image_set_int(*out, VIPS_META_PAGE_HEIGHT, height);
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g_object_unref(base);
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return 0;
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}
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int embed_multi_page_image_background(VipsImage *in, VipsImage **out, int left, int top, int width,
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int height, double r, double g, double b, double a) {
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double background[3] = {r, g, b};
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double backgroundRGBA[4] = {r, g, b, a};
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VipsArrayDouble *vipsBackground;
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if (in->Bands <= 3) {
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vipsBackground = vips_array_double_new(background, 3);
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} else {
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vipsBackground = vips_array_double_new(backgroundRGBA, 4);
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}
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VipsObject *base = VIPS_OBJECT(vips_image_new());
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int page_height = vips_image_get_page_height(in);
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int in_width = in->Xsize;
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int n_pages = in->Ysize / page_height;
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VipsImage **page = (VipsImage **) vips_object_local_array(base, n_pages);
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VipsImage **embedded_page = (VipsImage **) vips_object_local_array(base, n_pages);
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VipsImage **copy = (VipsImage **) vips_object_local_array(base, 1);
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// split image into cropped frames
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for (int i = 0; i < n_pages; i++) {
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if (
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vips_extract_area(in, &page[i], 0, page_height * i, in_width, page_height, NULL) ||
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vips_embed(page[i], &embedded_page[i], left, top, width, height,
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"extend", VIPS_EXTEND_BACKGROUND, "background", vipsBackground, NULL)
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) {
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vips_area_unref(VIPS_AREA(vipsBackground));
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g_object_unref(base);
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return -1;
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}
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}
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// reassemble frames and set page height
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// copy before modifying metadata
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if(
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vips_arrayjoin(embedded_page, ©[0], n_pages, "across", 1, NULL) ||
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vips_copy(copy[0], out, NULL)
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) {
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vips_area_unref(VIPS_AREA(vipsBackground));
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g_object_unref(base);
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return -1;
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}
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vips_image_set_int(*out, VIPS_META_PAGE_HEIGHT, height);
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vips_area_unref(VIPS_AREA(vipsBackground));
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g_object_unref(base);
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return 0;
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}
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int similarity(VipsImage *in, VipsImage **out, double scale, double angle,
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double r, double g, double b, double a, double idx, double idy,
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double odx, double ody) {
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if (is_16bit(in->Type)) {
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r = 65535 * r / 255;
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g = 65535 * g / 255;
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b = 65535 * b / 255;
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a = 65535 * a / 255;
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}
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double background[3] = {r, g, b};
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double backgroundRGBA[4] = {r, g, b, a};
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VipsArrayDouble *vipsBackground;
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// Ignore the alpha channel if the image doesn't have one
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if (in->Bands <= 3) {
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vipsBackground = vips_array_double_new(background, 3);
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} else {
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vipsBackground = vips_array_double_new(backgroundRGBA, 4);
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}
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int code = vips_similarity(in, out, "scale", scale, "angle", angle,
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"background", vipsBackground, "idx", idx, "idy",
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idy, "odx", odx, "ody", ody, NULL);
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vips_area_unref(VIPS_AREA(vipsBackground));
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return code;
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}
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int crop(VipsImage *in, VipsImage **out, int left, int top,
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int width, int height) {
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// resolve image pages
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int page_height = vips_image_get_page_height(in);
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int n_pages = in->Ysize / page_height;
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if (n_pages <= 1) {
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return vips_crop(in, out, left, top, width, height, NULL);
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}
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int in_width = in->Xsize;
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VipsObject *base = VIPS_OBJECT(vips_image_new());
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VipsImage **page = (VipsImage **) vips_object_local_array(base, n_pages);
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VipsImage **cropped_page = (VipsImage **) vips_object_local_array(base, n_pages);
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VipsImage **copy = (VipsImage **) vips_object_local_array(base, 1);
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// split image into cropped frames
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for (int i = 0; i < n_pages; i++) {
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if (
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vips_extract_area(in, &page[i], 0, page_height * i, in_width, page_height, NULL) ||
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vips_crop(page[i], &cropped_page[i], left, top, width, height, NULL)
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) {
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g_object_unref(base);
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return -1;
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}
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}
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// reassemble frames and set page height
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// copy before modifying metadata
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if(
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vips_arrayjoin(cropped_page, ©[0], n_pages, "across", 1, NULL) ||
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vips_copy(copy[0], out, NULL)
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) {
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g_object_unref(base);
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return -1;
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}
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vips_image_set_int(*out, VIPS_META_PAGE_HEIGHT, height);
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g_object_unref(base);
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return 0;
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}
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static int is_16bit(VipsInterpretation interpretation) {
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return interpretation == VIPS_INTERPRETATION_RGB16 ||
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interpretation == VIPS_INTERPRETATION_GREY16;
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}
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int composite_image(VipsImage **in, VipsImage **out, int n, int *mode, int *x,
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int *y) {
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VipsArrayInt *xs = vips_array_int_new(x, n - 1);
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VipsArrayInt *ys = vips_array_int_new(y, n - 1);
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int code = vips_composite(in, out, n, mode, "x", xs, "y", ys, NULL);
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vips_area_unref(VIPS_AREA(xs));
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vips_area_unref(VIPS_AREA(ys));
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return code;
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}
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int join(VipsImage *in1, VipsImage *in2, VipsImage **out, int direction) {
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return vips_join(in1, in2, out, direction, NULL);
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}
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int add_alpha(VipsImage *in, VipsImage **out) {
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return vips_addalpha(in, out, NULL);
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}
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// Create
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// https://libvips.github.io/libvips/API/current/libvips-create.html#vips-text
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int text(VipsImage **out, TextOptions *o) {
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return vips_text(out, o->Text, "font", o->Font, "width", o->Width, "height", o->Height, "align", o->Align,
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"dpi", o->DPI, "rgba", o->RGBA, "justify", o->Justify, "spacing", o->Spacing, "wrap", o->Wrap, NULL);
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}
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// Draw
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int draw_rect(VipsImage *in, double r, double g, double b, double a, int left,
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int top, int width, int height, int fill) {
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if (is_16bit(in->Type)) {
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r = 65535 * r / 255;
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g = 65535 * g / 255;
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b = 65535 * b / 255;
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a = 65535 * a / 255;
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}
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double background[3] = {r, g, b};
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double backgroundRGBA[4] = {r, g, b, a};
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if (in->Bands <= 3) {
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return vips_draw_rect(in, background, 3, left, top, width, height, "fill",
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fill, NULL);
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} else {
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return vips_draw_rect(in, backgroundRGBA, 4, left, top, width, height,
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"fill", fill, NULL);
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}
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}
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// Header
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unsigned long has_icc_profile(VipsImage *in) {
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return vips_image_get_typeof(in, VIPS_META_ICC_NAME);
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}
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unsigned long get_icc_profile(VipsImage *in, const void **data,
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size_t *dataLength) {
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return image_get_blob(in, VIPS_META_ICC_NAME, data, dataLength);
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}
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gboolean remove_icc_profile(VipsImage *in) {
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return vips_image_remove(in, VIPS_META_ICC_NAME);
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}
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unsigned long has_iptc(VipsImage *in) {
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return vips_image_get_typeof(in, VIPS_META_IPTC_NAME);
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}
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char **image_get_fields(VipsImage *in) { return vips_image_get_fields(in); }
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void image_set_string(VipsImage *in, const char *name, const char *str) {
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vips_image_set_string(in, name, str);
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}
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unsigned long image_get_string(VipsImage *in, const char *name,
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const char **out) {
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return vips_image_get_string(in, name, out);
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}
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unsigned long image_get_as_string(VipsImage *in, const char *name, char **out) {
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return vips_image_get_as_string(in, name, out);
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}
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void remove_field(VipsImage *in, char *field) { vips_image_remove(in, field); }
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int get_meta_orientation(VipsImage *in) {
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int orientation = 0;
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if (vips_image_get_typeof(in, VIPS_META_ORIENTATION) != 0) {
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vips_image_get_int(in, VIPS_META_ORIENTATION, &orientation);
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}
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return orientation;
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}
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void remove_meta_orientation(VipsImage *in) {
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vips_image_remove(in, VIPS_META_ORIENTATION);
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}
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void set_meta_orientation(VipsImage *in, int orientation) {
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vips_image_set_int(in, VIPS_META_ORIENTATION, orientation);
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}
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// https://libvips.github.io/libvips/API/current/libvips-header.html#vips-image-get-n-pages
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int get_image_n_pages(VipsImage *in) {
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int n_pages = 0;
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n_pages = vips_image_get_n_pages(in);
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return n_pages;
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}
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void set_image_n_pages(VipsImage *in, int n_pages) {
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vips_image_set_int(in, VIPS_META_N_PAGES, n_pages);
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}
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// https://www.libvips.org/API/current/libvips-header.html#vips-image-get-page-height
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int get_page_height(VipsImage *in) {
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int page_height = 0;
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page_height = vips_image_get_page_height(in);
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return page_height;
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}
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void set_page_height(VipsImage *in, int height) {
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vips_image_set_int(in, VIPS_META_PAGE_HEIGHT, height);
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}
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int get_meta_loader(const VipsImage *in, const char **out) {
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return vips_image_get_string(in, VIPS_META_LOADER, out);
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}
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int get_background(VipsImage *in, double **out, int *n) {
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return vips_image_get_array_double(in, "background", out, n);
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}
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int get_image_delay(VipsImage *in, int **out) {
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return vips_image_get_array_int(in, "delay", out, NULL);
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}
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void set_image_delay(VipsImage *in, const int *array, int n) {
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vips_image_set_array_int(in, "delay", array, n);
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}
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int get_image_loop(VipsImage *in) {
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int loop = 0;
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if (vips_image_get_typeof(in, "loop") != 0) {
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vips_image_get_int(in, "loop", &loop);
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}
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return loop;
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}
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void set_image_loop(VipsImage *in, int loop) {
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vips_image_set_int(in, "loop", loop);
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}
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void image_set_double(VipsImage *in, const char *name, double i) {
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vips_image_set_double(in, name, i);
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}
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unsigned long image_get_double(VipsImage *in, const char *name, double *out) {
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return vips_image_get_double(in, name, out);
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}
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void image_set_int(VipsImage *in, const char *name, int i) {
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vips_image_set_int(in, name, i);
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}
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unsigned long image_get_int(VipsImage *in, const char *name, int *out) {
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return vips_image_get_int(in, name, out);
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}
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void image_set_blob(VipsImage *in, const char *name, const void *data,
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size_t dataLength) {
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vips_image_set_blob_copy(in, name, data, dataLength);
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}
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unsigned long image_get_blob(VipsImage *in, const char *name, const void **data,
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size_t *dataLength) {
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if (vips_image_get_typeof(in, name) == 0) {
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return 0;
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}
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if (vips_image_get_blob(in, name, data, dataLength)) {
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return -1;
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}
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||||
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return 0;
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}
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// Label
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|
||||
int label(VipsImage *in, VipsImage **out, LabelOptions *o) {
|
||||
double ones[3] = {1, 1, 1};
|
||||
VipsImage *base = vips_image_new();
|
||||
VipsImage **t = (VipsImage **)vips_object_local_array(VIPS_OBJECT(base), 9);
|
||||
if (vips_text(&t[0], o->Text, "font", o->Font, "width", o->Width, "height",
|
||||
o->Height, "align", o->Align, NULL) ||
|
||||
vips_linear1(t[0], &t[1], o->Opacity, 0.0, NULL) ||
|
||||
vips_cast(t[1], &t[2], VIPS_FORMAT_UCHAR, NULL) ||
|
||||
vips_embed(t[2], &t[3], o->OffsetX, o->OffsetY, t[2]->Xsize + o->OffsetX,
|
||||
t[2]->Ysize + o->OffsetY, NULL)) {
|
||||
g_object_unref(base);
|
||||
return -1;
|
||||
}
|
||||
if (vips_black(&t[4], 1, 1, NULL) ||
|
||||
vips_linear(t[4], &t[5], ones, o->Color, 3, NULL) ||
|
||||
vips_cast(t[5], &t[6], VIPS_FORMAT_UCHAR, NULL) ||
|
||||
vips_copy(t[6], &t[7], "interpretation", in->Type, NULL) ||
|
||||
vips_embed(t[7], &t[8], 0, 0, in->Xsize, in->Ysize, "extend",
|
||||
VIPS_EXTEND_COPY, NULL)) {
|
||||
g_object_unref(base);
|
||||
return -1;
|
||||
}
|
||||
if (vips_ifthenelse(t[3], t[8], in, out, "blend", TRUE, NULL)) {
|
||||
g_object_unref(base);
|
||||
return -1;
|
||||
}
|
||||
g_object_unref(base);
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Resample
|
||||
|
||||
int resize_image(VipsImage *in, VipsImage **out, double scale, gdouble vscale,
|
||||
int kernel) {
|
||||
if (vscale > 0) {
|
||||
return vips_resize(in, out, scale, "vscale", vscale, "kernel", kernel,
|
||||
NULL);
|
||||
}
|
||||
|
||||
return vips_resize(in, out, scale, "kernel", kernel, NULL);
|
||||
}
|
||||
|
||||
int thumbnail(const char *filename, VipsImage **out,
|
||||
int width, int height, int crop, int size) {
|
||||
return vips_thumbnail(filename, out, width, "height", height,
|
||||
"crop", crop, "size", size, NULL);
|
||||
}
|
||||
|
||||
int thumbnail_image(VipsImage *in, VipsImage **out, int width, int height,
|
||||
int crop, int size) {
|
||||
return vips_thumbnail_image(in, out, width, "height", height, "crop", crop,
|
||||
"size", size, NULL);
|
||||
}
|
||||
|
||||
int thumbnail_buffer_with_option(void *buf, size_t len, VipsImage **out,
|
||||
int width, int height, int crop, int size,
|
||||
const char *option_string) {
|
||||
return vips_thumbnail_buffer(buf, len, out, width, "height", height,
|
||||
"crop", crop, "size", size,
|
||||
"option_string", option_string, NULL);
|
||||
}
|
||||
|
||||
int thumbnail_buffer(void *buf, size_t len, VipsImage **out,
|
||||
int width, int height, int crop, int size) {
|
||||
return vips_thumbnail_buffer(buf, len, out, width, "height", height,
|
||||
"crop", crop, "size", size, NULL);
|
||||
}
|
||||
Reference in New Issue
Block a user