#include "img_conv.h"
#ifdef __cplusplus
extern "C" {
#endif
static struct valid_image_type {
int type;
int newtype;
void *from_proc;
void *to_proc;
} valid_image_types[] =
{
{ imbpp24 | imColor | imfmtBGR, imRGB, (void*)cm_reverse_palette, (void*)cm_reverse_palette},
{ imbpp32 | imColor | imfmtRGBI, imRGB, (void*)bc_rgbi_rgb, (void*)bc_rgb_rgbi },
{ imbpp32 | imColor | imfmtIRGB, imRGB, (void*)bc_irgb_rgb, (void*)bc_rgb_irgb },
{ imbpp32 | imColor | imfmtBGRI, imRGB, (void*)bc_bgri_rgb, (void*)bc_rgb_bgri },
{ imbpp32 | imColor | imfmtIBGR, imRGB, (void*)bc_ibgr_rgb, (void*)bc_rgb_ibgr },
};
Bool
itype_importable( int type, int *newtype, void **from_proc, void **to_proc)
{
int i;
for (i=0; i < sizeof(valid_image_types)/sizeof(struct valid_image_type); i++)
if ( valid_image_types[i]. type == type) {
if (newtype) *newtype = valid_image_types[i]. newtype;
if (from_proc) *from_proc = valid_image_types[i]. from_proc;
if (to_proc) *to_proc = valid_image_types[i]. to_proc;
return true;
}
return false;
}
static void
memcpy_bitconvproc( Byte * src, Byte * dest, int count)
{
memcpy( dest, src, count);
}
void
ibc_repad( Byte * source, Byte * dest, int srcLineSize, int dstLineSize, int srcDataSize, int dstDataSize, int srcBpp, int dstBpp, void * convProc, Bool reverse)
{
int sb = srcLineSize / srcBpp;
int db = dstLineSize / dstBpp;
int bsc = sb > db ? db : sb;
int sh = srcDataSize / srcLineSize;
int dh = dstDataSize / dstLineSize;
int h = sh > dh ? dh : sh;
if ( convProc == NULL) {
convProc = (void*)memcpy_bitconvproc;
srcBpp = dstBpp = 1;
sb = srcLineSize;
db = dstLineSize;
bsc = sb > db ? db : sb;
}
if ( reverse) {
dest += dstLineSize * ( h - 1);
for ( ; h > 0; h--, source += srcLineSize, dest -= dstLineSize)
(( PSimpleConvProc) convProc)( source, dest, bsc);
} else {
for ( ; h > 0; h--, source += srcLineSize, dest += dstLineSize)
(( PSimpleConvProc) convProc)( source, dest, bsc);
}
sb = srcDataSize % srcLineSize / srcBpp;
db = dstDataSize % dstLineSize / dstBpp;
(( PSimpleConvProc) convProc)( source, dest, sb > db ? db : sb);
}
void
bc_rgb_rgbi( register Byte * source, register Byte * dest, register int count)
{
dest += count * 4 - 1;
source += count * 3 - 1;
while ( count--)
{
*dest-- = 0;
*dest-- = *source--;
*dest-- = *source--;
*dest-- = *source--;
}
}
void
bc_rgbi_rgb( register Byte * source, register Byte * dest, register int count)
{
while ( count--)
{
*dest++ = *source++;
*dest++ = *source++;
*dest++ = *source++;
source++;
}
}
void
bc_rgb_irgb( register Byte * source, register Byte * dest, register int count)
{
dest += count * 4 - 1;
source += count * 3 - 1;
while ( count--)
{
*dest-- = *source--;
*dest-- = *source--;
*dest-- = *source--;
*dest-- = 0;
}
}
void
bc_irgb_rgb( register Byte * source, register Byte * dest, register int count)
{
while ( count--)
{
source++;
*dest++ = *source++;
*dest++ = *source++;
*dest++ = *source++;
}
}
void
bc_bgri_rgb( register Byte * source, register Byte * dest, register int count)
{
while ( count--)
{
register Byte a, b;
a = *source++;
b = *source++;
*dest++ = *source++;
*dest++ = b;
*dest++ = a;
source++;
}
}
void
bc_rgb_bgri( register Byte * source, register Byte * dest, register int count)
{
dest += count * 4 - 1;
source += count * 3 - 1;
while ( count--)
{
register Byte a = *source--;
register Byte b = *source--;
*dest-- = 0;
*dest-- = *source--;
*dest-- = b;
*dest-- = a;
}
}
void
bc_ibgr_rgb( register Byte * source, register Byte * dest, register int count)
{
while ( count--)
{
register Byte a, b;
source++;
a = *source++;
b = *source++;
*dest++ = *source++;
*dest++ = b;
*dest++ = a;
}
}
void
bc_rgb_ibgr( register Byte * source, register Byte * dest, register int count)
{
dest += count * 4 - 1;
source += count * 3 - 1;
while ( count--)
{
register Byte a = *source--;
register Byte b = *source--;
*dest-- = *source--;
*dest-- = b;
*dest-- = a;
*dest-- = 0;
}
}
void bc_rgba_rgb_a( register Byte * rgba_source, register Byte * rgb_dest, register Byte * a_dest, register int count)
{
while (count--) {
*rgb_dest++ = *rgba_source++;
*rgb_dest++ = *rgba_source++;
*rgb_dest++ = *rgba_source++;
*a_dest++ = *rgba_source++;
}
}
void bc_rgba_bgr_a( register Byte * rgba_source, register Byte * bgr_dest, register Byte * a_dest, register int count)
{
while (count--) {
register Byte r, g;
r = *rgba_source++;
g = *rgba_source++;
*bgr_dest++ = *rgba_source++;
*bgr_dest++ = g;
*bgr_dest++ = r;
*a_dest++ = *rgba_source++;
}
}
void bc_rgb_a_rgba( register Byte * rgb_source, register Byte * a_source, register Byte * rgba_dest, register int count)
{
while (count--) {
*rgba_dest++ = *rgb_source++;
*rgba_dest++ = *rgb_source++;
*rgba_dest++ = *rgb_source++;
*rgba_dest++ = *a_source++;
}
}
void bc_bgr_a_rgba( register Byte * bgr_source, register Byte * a_source, register Byte * rgba_dest, register int count)
{
while (count--) {
register Byte r, g;
r = *bgr_source++;
g = *bgr_source++;
*rgba_dest++ = *bgr_source++;
*rgba_dest++ = g;
*rgba_dest++ = r;
*rgba_dest++ = *a_source++;
}
}
void
bc_a8mask_nibble( register Byte *mask, register Byte *pixels, unsigned int width)
{
register unsigned int half_width = width / 2;
while ( half_width-- > 0 ) {
if ( *(mask++) != 255 ) *pixels &= 0x0f;
if ( *(mask++) != 255 ) *pixels &= 0xf0;
pixels++;
width -= 2;
}
if ( width != 0 && *(mask++) != 255 )
*pixels &= 0x0f;
}
void
bc_a8mask_multibyte( register Byte *mask, register Byte *pixels, unsigned int width, int pixel_width)
{
switch ( pixel_width ) {
case 1:
while ( width-- > 0 ) {
if ( *(mask++) != 255) *pixels = 0x0;
pixels++;
}
break;
case 3:
while ( width-- > 0 ) {
if ( *(mask++) != 255)
pixels[0] = pixels[1] = pixels[2] = 0;
pixels += 3;
}
break;
default:
while ( width-- > 0 ) {
if ( *(mask++) != 255) {
int i;
for ( i = 0; i < pixel_width; i++)
pixels[i] = 0;
}
pixels += pixel_width;
}
}
}
#ifdef __cplusplus
}
#endif