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https://projects.vdr-developer.org/git/vdr-plugin-skindesigner.git
synced 2023-10-19 17:58:31 +02:00
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
#include <string>
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#include <sstream>
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#include "imagemagickwrapper.h"
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#include "../config.h"
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#include "imagescaler.h"
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cImageMagickWrapper::cImageMagickWrapper() {
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InitializeMagick(NULL);
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}
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cImageMagickWrapper::~cImageMagickWrapper() {
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}
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cImage *cImageMagickWrapper::CreateImage(int width, int height, bool preserveAspect) {
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if (image == NULL) return NULL;
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int w, h;
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w = cairo_image_surface_get_width(image);
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h = cairo_image_surface_get_height(image);
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if (width == 0)
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width = w;
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if (height == 0)
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height = h;
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cairo_surface_t *surface;
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surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
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cairo_t *cr;
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cr = cairo_create(surface);
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double sx = width / (double)w;
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double sy = height / (double)h;
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if (preserveAspect) {
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if (sx < sy)
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sy = sx;
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if (sy < sx)
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sx = sy;
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}
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cairo_scale(cr, sx, sy);
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cairo_set_source_surface(cr, image, 0, 0);
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cairo_paint(cr);
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cairo_status_t status = cairo_status (cr);
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if (status)
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dsyslog("skindesigner: Cairo CreateImage Error %s", cairo_status_to_string(status));
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unsigned char *data = cairo_image_surface_get_data(surface);
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cImage *cimage = new cImage(cSize(width, height), (tColor*)data);
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cairo_destroy(cr);
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cairo_surface_destroy(image);
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image = NULL;
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return cimage;
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}
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bool cImageMagickWrapper::LoadImage(const char *fullpath) {
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if ((fullpath == NULL) || (strlen(fullpath) < 5))
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return false;
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if (image != NULL) cairo_surface_destroy(image);
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if (config.debugImageLoading)
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dsyslog("skindesigner: trying to load: %s", fullpath);
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image = cairo_image_surface_create_from_png(fullpath);
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if (cairo_surface_status(image)) {
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if (config.debugImageLoading)
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dsyslog("skindesigner: Cairo LoadImage Error: %s", cairo_status_to_string(cairo_surface_status(image)));
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image = NULL;
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return false;
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}
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return true;
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}
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// Just a different way to call LoadImage. Calls the above one.
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bool cImageMagickWrapper::LoadImage(std::string FileName, std::string Path, std::string Extension) {
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std::stringstream sstrImgFile;
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sstrImgFile << Path << FileName << "." << Extension;
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std::string imgFile = sstrImgFile.str();
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return LoadImage(imgFile.c_str());
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}
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