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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file src/gdisp/image.c
* @brief GDISP generic image code.
*
* @defgroup Image Image
* @ingroup GDISP
*/
#include "gfx.h"
#if GFX_USE_GDISP && GDISP_NEED_IMAGE
#include <string.h>
static gdispImageError imageOpen(gdispImage *img) {
gdispImageError err;
img->bgcolor = White;
for(img->fns = ImageHandlers; img->fns < ImageHandlers+sizeof(ImageHandlers)/sizeof(ImageHandlers[0]); img->fns++) {
err = img->fns->open(img);
if (err != GDISP_IMAGE_ERR_BADFORMAT) {
if (!(err & GDISP_IMAGE_ERR_UNRECOVERABLE))
return err;
goto unrecoverable;
}
img->io.fns->seek(&img->io, 0);
}
err = GDISP_IMAGE_ERR_BADFORMAT;
img->type = GDISP_IMAGE_TYPE_UNKNOWN;
unrecoverable:
img->fns->close(img);
img->flags = 0;
img->fns = 0;
img->priv = 0;
return err;
}
gdispImageError
DEPRECATED("If possible please use gdispImageOpenFile(), gdispImageOpenMemory() or gdispImageOpenBaseFileStream() instead")
gdispImageOpen(gdispImage *img) {
return imageOpen(img);
}
#if GDISP_NEED_IMAGE_NATIVE
extern gdispImageError gdispImageOpen_NATIVE(gdispImage *img);
extern void gdispImageClose_NATIVE(gdispImage *img);
extern gdispImageError gdispImageCache_NATIVE(gdispImage *img);
extern gdispImageError gdispGImageDraw_NATIVE(GDisplay *g, gdispImage *img, coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t sx, coord_t sy);
extern delaytime_t gdispImageNext_NATIVE(gdispImage *img);
#endif
#if GDISP_NEED_IMAGE_GIF
extern gdispImageError gdispImageOpen_GIF(gdispImage *img);
extern void gdispImageClose_GIF(gdispImage *img);
extern gdispImageError gdispImageCache_GIF(gdispImage *img);
extern gdispImageError gdispGImageDraw_GIF(GDisplay *g, gdispImage *img, coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t sx, coord_t sy);
extern delaytime_t gdispImageNext_GIF(gdispImage *img);
#endif
#if GDISP_NEED_IMAGE_BMP
extern gdispImageError gdispImageOpen_BMP(gdispImage *img);
extern void gdispImageClose_BMP(gdispImage *img);
extern gdispImageError gdispImageCache_BMP(gdispImage *img);
extern gdispImageError gdispGImageDraw_BMP(GDisplay *g, gdispImage *img, coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t sx, coord_t sy);
extern delaytime_t gdispImageNext_BMP(gdispImage *img);
#endif
#if GDISP_NEED_IMAGE_JPG
extern gdispImageError gdispImageOpen_JPG(gdispImage *img);
extern void gdispImageClose_JPG(gdispImage *img);
extern gdispImageError gdispImageCache_JPG(gdispImage *img);
extern gdispImageError gdispGImageDraw_JPG(GDisplay *g, gdispImage *img, coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t sx, coord_t sy);
extern delaytime_t gdispImageNext_JPG(gdispImage *img);
#endif
#if GDISP_NEED_IMAGE_PNG
extern gdispImageError gdispImageOpen_PNG(gdispImage *img);
extern void gdispImageClose_PNG(gdispImage *img);
extern gdispImageError gdispImageCache_PNG(gdispImage *img);
extern gdispImageError gdispGImageDraw_PNG(GDisplay *g, gdispImage *img, coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t sx, coord_t sy);
extern delaytime_t gdispImageNext_PNG(gdispImage *img);
#endif
/* The structure defining the routines for image drawing */
typedef struct gdispImageHandlers {
gdispImageError (*open)(gdispImage *img); /* The open function */
void (*close)(gdispImage *img); /* The close function */
gdispImageError (*cache)(gdispImage *img); /* The cache function */
gdispImageError (*draw)(GDisplay *g,
gdispImage *img,
coord_t x, coord_t y,
coord_t cx, coord_t cy,
coord_t sx, coord_t sy); /* The draw function */
delaytime_t (*next)(gdispImage *img); /* The next frame function */
} gdispImageHandlers;
static gdispImageHandlers ImageHandlers[] = {
#if GDISP_NEED_IMAGE_NATIVE
{ gdispImageOpen_NATIVE, gdispImageClose_NATIVE,
gdispImageCache_NATIVE, gdispGImageDraw_NATIVE, gdispImageNext_NATIVE,
},
#endif
#if GDISP_NEED_IMAGE_GIF
{ gdispImageOpen_GIF, gdispImageClose_GIF,
gdispImageCache_GIF, gdispGImageDraw_GIF, gdispImageNext_GIF,
},
#endif
#if GDISP_NEED_IMAGE_BMP
{ gdispImageOpen_BMP, gdispImageClose_BMP,
gdispImageCache_BMP, gdispGImageDraw_BMP, gdispImageNext_BMP,
},
#endif
#if GDISP_NEED_IMAGE_JPG
{ gdispImageOpen_JPG, gdispImageClose_JPG,
gdispImageCache_JPG, gdispGImageDraw_JPG, gdispImageNext_JPG,
},
#endif
#if GDISP_NEED_IMAGE_PNG
{ gdispImageOpen_PNG, gdispImageClose_PNG,
gdispImageCache_PNG, gdispGImageDraw_PNG, gdispImageNext_PNG,
},
#endif
};
static size_t ImageGFileRead(struct gdispImageIO *pio, void *buf, size_t len) {
if (!pio->fd) return 0;
len = gfileRead((GFILE *)pio->fd, buf, len);
if ((int)len < 0) len = 0;
pio->pos += len;
return len;
}
static void ImageGFileSeek(struct gdispImageIO *pio, size_t pos) {
if (!pio->fd) return;
if (pio->pos != pos) {
gfileSetPos((GFILE *)pio->fd, pos);
pio->pos = pos;
}
}
static void ImageGFileClose(struct gdispImageIO *pio) {
if (!pio->fd) return;
gfileClose((GFILE *)pio->fd);
pio->fd = 0;
pio->pos = 0;
}
static const gdispImageIOFunctions ImageGFileFunctions =
{ ImageGFileRead, ImageGFileSeek, ImageGFileClose };
#if GFILE_NEED_MEMFS
gdispImageError gdispImageOpenMemory(gdispImage *img, const void *memimage) {
img->io.fns = &ImageGFileFunctions;
img->io.pos = 0;
img->io.fd = gfileOpenMemory(memimage, "rb");
if (!img->io.fd)
return GDISP_IMAGE_ERR_NOSUCHFILE;
return imageOpen(img);
}
bool_t DEPRECATED("Use gdispImageOpenMemory() instead. GFX_USE_GFILE, GFILE_NEED_MEMFS must also be TRUE") gdispImageSetMemoryReader(gdispImage *img, const void *memimage) {
img->io.fns = &ImageGFileFunctions;
img->io.pos = 0;
img->io.fd = gfileOpenMemory(memimage, "rb");
return img->io.fd != 0;
}
#endif
gdispImageError gdispImageOpenFile(gdispImage *img, const char *filename) {
img->io.fns = &ImageGFileFunctions;
img->io.pos = 0;
img->io.fd = gfileOpen(filename, "rb");
if (!img->io.fd)
return GDISP_IMAGE_ERR_NOSUCHFILE;
return imageOpen(img);
}
#if defined(WIN32) || GFX_USE_OS_WIN32 || GFX_USE_OS_LINUX || GFX_USE_OS_OSX
bool_t DEPRECATED("Please use gdispImageOpenFile() instead. GFX_USE_GFILE must also be TRUE") gdispImageSetFileReader(gdispImage *img, const char *filename) {
img->io.fns = &ImageGFileFunctions;
img->io.pos = 0;
img->io.fd = gfileOpen(filename, "rb");
return img->io.fd != 0;
}
#endif
#if GFILE_NEED_CHIBIOSFS && GFX_USE_OS_CHIBIOS
bool_t DEPRECATED("Use gdispImageOpenBaseFileStream() instead. GFX_USE_GFILE, GFILE_NEED_CHIBIOSFS must also be TRUE") gdispImageSetBaseFileStreamReader(gdispImage *img, void *BaseFileStreamPtr) {
img->io.fns = &ImageGFileFunctions;
img->io.pos = 0;
img->io.fd = gfileOpenBaseFileStream(BaseFileStreamPtr, "rb");
return img->io.fd != 0;
}
gdispImageError gdispImageOpenBaseFileStream(gdispImage *img, void *BaseFileStreamPtr) {
img->io.fns = &ImageGFileFunctions;
img->io.pos = 0;
img->io.fd = gfileOpenBaseFileStream(BaseFileStreamPtr, "rb");
if (!img->io.fd)
return GDISP_IMAGE_ERR_NOSUCHFILE;
return imageOpen(img);
}
#endif
void gdispImageClose(gdispImage *img) {
if (img->fns)
img->fns->close(img);
else
img->io.fns->close(&img->io);
img->type = GDISP_IMAGE_TYPE_UNKNOWN;
img->flags = 0;
img->fns = 0;
img->priv = 0;
}
bool_t gdispImageIsOpen(gdispImage *img) {
return img->type != GDISP_IMAGE_TYPE_UNKNOWN && img->fns != 0;
}
void gdispImageSetBgColor(gdispImage *img, color_t bgcolor) {
img->bgcolor = bgcolor;
}
gdispImageError gdispImageCache(gdispImage *img) {
if (!img->fns) return GDISP_IMAGE_ERR_BADFORMAT;
return img->fns->cache(img);
}
gdispImageError gdispGImageDraw(GDisplay *g, gdispImage *img, coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t sx, coord_t sy) {
if (!img->fns) return GDISP_IMAGE_ERR_BADFORMAT;
return img->fns->draw(g, img, x, y, cx, cy, sx, sy);
}
delaytime_t gdispImageNext(gdispImage *img) {
if (!img->fns) return GDISP_IMAGE_ERR_BADFORMAT;
return img->fns->next(img);
}
// Helper Routines
void *gdispImageAlloc(gdispImage *img, size_t sz) {
#if GDISP_NEED_IMAGE_ACCOUNTING
void *ptr;
ptr = gfxAlloc(sz);
if (ptr) {
img->memused += sz;
if (img->memused > img->maxmemused)
img->maxmemused = img->memused;
}
return ptr;
#else
(void) img;
return gfxAlloc(sz);
#endif
}
void gdispImageFree(gdispImage *img, void *ptr, size_t sz) {
#if GDISP_NEED_IMAGE_ACCOUNTING
gfxFree(ptr);
img->memused -= sz;
#else
(void) img;
(void) sz;
gfxFree(ptr);
#endif
}
#endif /* GFX_USE_GDISP && GDISP_NEED_IMAGE */
/** @} */
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