mirror of
https://projects.vdr-developer.org/git/vdr-plugin-skindesigner.git
synced 2023-10-19 17:58:31 +02:00
105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
#ifndef __NOPACITY_IMAGELOADER_H
|
|
#define __NOPACITY_IMAGELOADER_H
|
|
|
|
#include <cairo.h>
|
|
#include <librsvg/rsvg.h>
|
|
#include <jpeglib.h>
|
|
#include <setjmp.h>
|
|
#include <vdr/osd.h>
|
|
#include <vdr/tools.h>
|
|
|
|
//
|
|
// Image importers
|
|
//
|
|
class cImageImporter {
|
|
public:
|
|
cImageImporter() {};
|
|
virtual ~cImageImporter() {};
|
|
virtual bool LoadImage(const char *path) {};
|
|
virtual void DrawToCairo(cairo_t *cr) {};
|
|
virtual void GetImageSize(int &width, int &height) {};
|
|
};
|
|
|
|
// Image importer for PNG
|
|
class cImageImporterPNG : public cImageImporter {
|
|
public:
|
|
cImageImporterPNG();
|
|
~cImageImporterPNG();
|
|
bool LoadImage(const char *path);
|
|
void DrawToCairo(cairo_t *cr);
|
|
void GetImageSize(int &width, int &height);
|
|
private:
|
|
cairo_surface_t *surface;
|
|
};
|
|
|
|
// Image importer for SVG
|
|
class cImageImporterSVG : public cImageImporter {
|
|
public:
|
|
cImageImporterSVG();
|
|
~cImageImporterSVG();
|
|
bool LoadImage(const char *path);
|
|
void DrawToCairo(cairo_t *cr);
|
|
void GetImageSize(int &width, int &height);
|
|
private:
|
|
RsvgHandle *handle;
|
|
};
|
|
|
|
// Image importer for JPG
|
|
|
|
#if BITS_IN_JSAMPLE != 8
|
|
#error libjpeg-turbo has to be compiled with 8-bit samples!
|
|
#endif
|
|
|
|
struct my_error_mgr {
|
|
struct jpeg_error_mgr pub; // "public" fields
|
|
jmp_buf setjmp_buffer; // for return to caller
|
|
};
|
|
|
|
METHODDEF(void)
|
|
my_error_exit(j_common_ptr cinfo) {
|
|
// cinfo->err really points to a my_error_mgr struct, so coerce pointer
|
|
my_error_mgr *myerr = (my_error_mgr*) cinfo->err;
|
|
|
|
// Always display the message.
|
|
// We could postpone this until after returning, if we chose.
|
|
(*cinfo->err->output_message) (cinfo);
|
|
|
|
// Return control to the setjmp point
|
|
longjmp(myerr->setjmp_buffer, 1);
|
|
}
|
|
|
|
METHODDEF(void)
|
|
my_output_message(j_common_ptr cinfo) {
|
|
char buf[JMSG_LENGTH_MAX];
|
|
cinfo->err->format_message(cinfo, buf);
|
|
dsyslog("skindesigner: libjpeg error: %s", buf);
|
|
}
|
|
|
|
class cImageImporterJPG : public cImageImporter {
|
|
public:
|
|
cImageImporterJPG();
|
|
~cImageImporterJPG();
|
|
bool LoadImage(const char *path);
|
|
void DrawToCairo(cairo_t *cr);
|
|
void GetImageSize(int &width, int &height);
|
|
private:
|
|
j_decompress_ptr cinfo;
|
|
FILE *infile;
|
|
};
|
|
|
|
|
|
|
|
class cImageLoader {
|
|
private:
|
|
cImageImporter *importer = NULL;
|
|
public:
|
|
cImageLoader();
|
|
virtual ~cImageLoader();
|
|
cImage *CreateImage(int width, int height, bool preserveAspect = true);
|
|
bool LoadImage(std::string Path, std::string FileName, std::string Extension);
|
|
bool LoadImage(const char *fullpath);
|
|
void DeterminateChannelLogoSize(int &width, int &height);
|
|
};
|
|
|
|
#endif //__NOPACITY_IMAGELOADER_H
|