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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.io/license.html
*/
#include "../../gfx.h"
#if GFX_USE_GDISP && GDISP_NEED_IMAGE
#include "gdisp_image_support.h"
#if GDISP_NEED_IMAGE_NATIVE
extern gdispImageError gdispImageOpen_NATIVE(gImage *img);
extern void gdispImageClose_NATIVE(gImage *img);
extern gdispImageError gdispImageCache_NATIVE(gImage *img);
extern gdispImageError gdispGImageDraw_NATIVE(GDisplay *g, gImage *img, gCoord x, gCoord y, gCoord cx, gCoord cy, gCoord sx, gCoord sy);
extern gDelay gdispImageNext_NATIVE(gImage *img);
#endif
#if GDISP_NEED_IMAGE_GIF
extern gdispImageError gdispImageOpen_GIF(gImage *img);
extern void gdispImageClose_GIF(gImage *img);
extern gdispImageError gdispImageCache_GIF(gImage *img);
extern gdispImageError gdispGImageDraw_GIF(GDisplay *g, gImage *img, gCoord x, gCoord y, gCoord cx, gCoord cy, gCoord sx, gCoord sy);
extern gDelay gdispImageNext_GIF(gImage *img);
#endif
#if GDISP_NEED_IMAGE_BMP
extern gdispImageError gdispImageOpen_BMP(gImage *img);
extern void gdispImageClose_BMP(gImage *img);
extern gdispImageError gdispImageCache_BMP(gImage *img);
extern gdispImageError gdispGImageDraw_BMP(GDisplay *g, gImage *img, gCoord x, gCoord y, gCoord cx, gCoord cy, gCoord sx, gCoord sy);
extern gDelay gdispImageNext_BMP(gImage *img);
extern gU16 gdispImageGetPaletteSize_BMP(gImage *img);
extern gColor gdispImageGetPalette_BMP(gImage *img, gU16 index);
extern gBool gdispImageAdjustPalette_BMP(gImage *img, gU16 index, gColor newColor);
#endif
#if GDISP_NEED_IMAGE_JPG
extern gdispImageError gdispImageOpen_JPG(gImage *img);
extern void gdispImageClose_JPG(gImage *img);
extern gdispImageError gdispImageCache_JPG(gImage *img);
extern gdispImageError gdispGImageDraw_JPG(GDisplay *g, gImage *img, gCoord x, gCoord y, gCoord cx, gCoord cy, gCoord sx, gCoord sy);
extern gDelay gdispImageNext_JPG(gImage *img);
#endif
#if GDISP_NEED_IMAGE_PNG
extern gdispImageError gdispImageOpen_PNG(gImage *img);
extern void gdispImageClose_PNG(gImage *img);
extern gdispImageError gdispImageCache_PNG(gImage *img);
extern gdispImageError gdispGImageDraw_PNG(GDisplay *g, gImage *img, gCoord x, gCoord y, gCoord cx, gCoord cy, gCoord sx, gCoord sy);
extern gDelay gdispImageNext_PNG(gImage *img);
#endif
/* The structure defining the routines for image drawing */
typedef struct gdispImageHandlers {
gdispImageError (*open)(gImage *img); /* The open function */
void (*close)(gImage *img); /* The close function */
gdispImageError (*cache)(gImage *img); /* The cache function */
gdispImageError (*draw)(GDisplay *g,
gImage *img,
gCoord x, gCoord y,
gCoord cx, gCoord cy,
gCoord sx, gCoord sy); /* The draw function */
gDelay (*next)(gImage *img); /* The next frame function */
gU16 (*getPaletteSize)(gImage *img); /* Retrieve the size of the palette (number of entries) */
gColor (*getPalette)(gImage *img, gU16 index); /* Retrieve a specific color value of the palette */
gBool (*adjustPalette)(gImage *img, gU16 index, gColor newColor); /* Replace a color value in the palette */
} gdispImageHandlers;
static gdispImageHandlers ImageHandlers[] = {
#if GDISP_NEED_IMAGE_NATIVE
{ gdispImageOpen_NATIVE, gdispImageClose_NATIVE,
gdispImageCache_NATIVE, gdispGImageDraw_NATIVE, gdispImageNext_NATIVE,
0, 0, 0
},
#endif
#if GDISP_NEED_IMAGE_GIF
{ gdispImageOpen_GIF, gdispImageClose_GIF,
gdispImageCache_GIF, gdispGImageDraw_GIF, gdispImageNext_GIF,
0, 0, 0
},
#endif
#if GDISP_NEED_IMAGE_BMP
{ gdispImageOpen_BMP, gdispImageClose_BMP,
gdispImageCache_BMP, gdispGImageDraw_BMP, gdispImageNext_BMP,
gdispImageGetPaletteSize_BMP, gdispImageGetPalette_BMP, gdispImageAdjustPalette_BMP
},
#endif
#if GDISP_NEED_IMAGE_JPG
{ gdispImageOpen_JPG, gdispImageClose_JPG,
gdispImageCache_JPG, gdispGImageDraw_JPG, gdispImageNext_JPG,
0, 0, 0
},
#endif
#if GDISP_NEED_IMAGE_PNG
{ gdispImageOpen_PNG, gdispImageClose_PNG,
gdispImageCache_PNG, gdispGImageDraw_PNG, gdispImageNext_PNG,
0, 0, 0
},
#endif
};
void gdispImageInit(gImage *img) {
img->type = GDISP_IMAGE_TYPE_UNKNOWN;
}
gdispImageError gdispImageOpenGFile(gImage *img, GFILE *f) {
gdispImageError err;
if (!img)
return GDISP_IMAGE_ERR_NULLPOINTER;
if (!f)
return GDISP_IMAGE_ERR_NOSUCHFILE;
img->f = f;
img->bgcolor = GFX_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))
goto unrecoverable;
// Everything is possible
return err;
}
// Try the next decoder
gfileSetPos(img->f, 0);
}
err = GDISP_IMAGE_ERR_BADFORMAT;
img->type = GDISP_IMAGE_TYPE_UNKNOWN;
unrecoverable:
gfileClose(img->f);
img->f = 0;
img->flags = 0;
img->fns = 0;
img->priv = 0;
return err;
}
void gdispImageClose(gImage *img) {
if (!img)
return;
if (img->fns)
img->fns->close(img);
gfileClose(img->f);
img->type = GDISP_IMAGE_TYPE_UNKNOWN;
img->flags = 0;
img->fns = 0;
img->priv = 0;
}
gBool gdispImageIsOpen(gImage *img) {
return img && img->type != GDISP_IMAGE_TYPE_UNKNOWN && img->fns != 0;
}
void gdispImageSetBgColor(gImage *img, gColor bgcolor) {
if (!img)
return;
img->bgcolor = bgcolor;
}
gdispImageError gdispImageCache(gImage *img) {
if (!img) return GDISP_IMAGE_ERR_NULLPOINTER;
if (!img->fns) return GDISP_IMAGE_ERR_BADFORMAT;
return img->fns->cache(img);
}
gdispImageError gdispGImageDraw(GDisplay *g, gImage *img, gCoord x, gCoord y, gCoord cx, gCoord cy, gCoord sx, gCoord sy) {
if (!img) return GDISP_IMAGE_ERR_NULLPOINTER;
if (!img->fns) return GDISP_IMAGE_ERR_BADFORMAT;
// Check on window
if (cx <= 0 || cy <= 0) return GDISP_IMAGE_ERR_OK;
if (sx < 0) sx = 0;
if (sy < 0) sy = 0;
if (sx >= img->width || sy >= img->height) return GDISP_IMAGE_ERR_OK;
if (sx + cx > img->width) cx = img->width - sx;
if (sy + cy > img->height) cy = img->height - sy;
// Draw
return img->fns->draw(g, img, x, y, cx, cy, sx, sy);
}
gDelay gdispImageNext(gImage *img) {
if (!img) return GDISP_IMAGE_ERR_NULLPOINTER;
if (!img->fns) return GDISP_IMAGE_ERR_BADFORMAT;
return img->fns->next(img);
}
gU16 gdispImageGetPaletteSize(gImage *img) {
if (!img || !img->fns) return 0;
if (!img->fns->getPaletteSize) return 0;
return img->fns->getPaletteSize(img);
}
gColor gdispImageGetPalette(gImage *img, gU16 index) {
if (!img || !img->fns) return 0;
if (!img->fns->getPalette) return 0;
return img->fns->getPalette(img, index);
}
gBool gdispImageAdjustPalette(gImage *img, gU16 index, gColor newColor) {
if (!img || !img->fns) return gFalse;
if (!img->fns->adjustPalette) return gFalse;
return img->fns->adjustPalette(img, index, newColor);
}
// Helper Routines
void *gdispImageAlloc(gImage *img, gMemSize 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(gImage *img, void *ptr, gMemSize sz) {
#if GDISP_NEED_IMAGE_ACCOUNTING
gfxFree(ptr);
img->memused -= sz;
#else
(void) img;
(void) sz;
gfxFree(ptr);
#endif
}
#if GFX_CPU_ENDIAN != GFX_CPU_ENDIAN_LITTLE && GFX_CPU_ENDIAN != GFX_CPU_ENDIAN_BIG \
&& GFX_CPU_ENDIAN != GFX_CPU_ENDIAN_WBDWL && GFX_CPU_ENDIAN != GFX_CPU_ENDIAN_WLDWB
union wbyteorder_u {
gU8 b[2];
gU32 w;
};
union dwbyteorder_u {
gU8 b[4];
gU32 l;
};
gU16 gdispImageH16toLE16(gU16 w) {
union wbyteorder_u we;
we.w = w;
return (((gU16)we.b[0]))|(((gU16)we.b[1]) << 8);
}
gU16 gdispImageH16toBE16(gU16 w) {
union wbyteorder_u we;
we.w = w;
return (((gU16)we.b[0]) << 8)|(((gU16)we.b[1]));
}
gU32 gdispImageH32toLE32(gU32 dw) {
union dwbyteorder_u we;
we.l = dw;
return (((gU32)we.b[0]))
|(((gU32)we.b[1]) << 8)
|(((gU32)we.b[2]) << 16)
|(((gU32)we.b[3]) << 24);
}
gU32 gdispImageH32toBE32(gU32 dw) {
union dwbyteorder_u we;
we.l = dw;
return (((gU32)we.b[0]) << 24)
|(((gU32)we.b[1]) << 16)
|(((gU32)we.b[2]) << 8)
|(((gU32)we.b[3]));
}
#endif
#endif /* GFX_USE_GDISP && GDISP_NEED_IMAGE */
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