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apc_img.c
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/*
* Copyright (c) 1997-2002 The Protein Laboratory, University of Copenhagen
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
*/
/*
* System dependent image routines (unix, x11)
*/
#include "unix/guts.h"
#include "Image.h"
#include "Icon.h"
#include "DeviceBitmap.h"
#define REVERT(a) ( XX-> size. y - (a) - 1 )
#define SHIFT(a,b) { (a) += XX-> gtransform. x + XX-> btransform. x; \
(b) += XX-> gtransform. y + XX-> btransform. y; }
/* Multiple evaluation macro! */
#define REVERSE_BYTES_32(x) ((((x)&0xff)<<24) | (((x)&0xff00)<<8) | (((x)&0xff0000)>>8) | (((x)&0xff000000)>>24))
#define REVERSE_BYTES_16(x) ((((x)&0xff)<<8 ) | (((x)&0xff00)>>8))
#define ByteBits 8
#define ByteMask 0xff
#define ByteValues 256
#define LOWER_BYTE(x) ((x)&ByteMask)
#define ColorComponentMask ByteMask
#define LSNibble 0x0f
#define LSNibbleShift 0
#define MSNibble 0xf0
#define MSNibbleShift 4
#define NPalEntries4 16
#define NPalEntries8 256
typedef U8 Pixel8;
typedef unsigned long XPixel;
typedef uint16_t Pixel16;
typedef struct
{
Pixel16 a;
Pixel16 b;
} Duplet16;
typedef struct
{
ColorComponent a0, a1, a2;
} Pixel24;
typedef struct
{
ColorComponent a0, a1, a2;
ColorComponent b0, b1, b2;
} Duplet24;
typedef uint32_t Pixel32;
typedef struct
{
Pixel32 a;
Pixel32 b;
} Duplet32;
#define get_ximage_data(xim) ((xim)->data_alias)
#define get_ximage_bytes_per_line(xim) ((xim)->bytes_per_line_alias)
#ifdef USE_MITSHM
static int
shm_ignore_errors(Display *d, XErrorEvent *ev)
{
guts.xshmattach_failed = true;
return 0;
}
#endif
PrimaXImage*
prima_prepare_ximage( int width, int height, Bool bitmap)
{
PrimaXImage *i;
int extra_bytes;
if (width == 0 || height == 0) return false;
switch ( guts.idepth) {
case 16: extra_bytes = 1; break;
case 24: extra_bytes = 5; break;
case 32: extra_bytes = 7; break;
default: extra_bytes = 0;
}
i = malloc( sizeof( PrimaXImage));
if (!i) {
warn("No enough memory");
return nil;
}
bzero( i, sizeof( PrimaXImage));
#ifdef USE_MITSHM
if ( guts. shared_image_extension && !bitmap) {
i-> image = XShmCreateImage( DISP, VISUAL,
bitmap ? 1 : guts.depth,
bitmap ? XYBitmap : ZPixmap,
nil, &i->xmem, width, height);
XCHECKPOINT;
if ( !i-> image) goto normal_way;
i-> bytes_per_line_alias = i-> image-> bytes_per_line;
i-> xmem. shmid = shmget( IPC_PRIVATE,
i-> image-> bytes_per_line * height + extra_bytes,
IPC_CREAT | 0666);
if ( i-> xmem. shmid < 0) {
XDestroyImage( i-> image);
goto normal_way;
}
i-> xmem. shmaddr = i-> image-> data = shmat( i-> xmem. shmid, 0, 0);
if ( i-> xmem. shmaddr == (void*)-1 || i-> xmem. shmaddr == nil) {
i-> image-> data = nil;
XDestroyImage( i-> image);
shmctl( i-> xmem. shmid, IPC_RMID, 0);
goto normal_way;
}
i-> xmem. readOnly = false;
guts.xshmattach_failed = false;
XSetErrorHandler(shm_ignore_errors);
if ( XShmAttach(DISP, &i->xmem) == 0) {
XCHECKPOINT;
bad_xshm_attach:
XSetErrorHandler(guts.main_error_handler);
i-> image-> data = nil;
XDestroyImage( i-> image);
shmdt( i-> xmem. shmaddr);
shmctl( i-> xmem. shmid, IPC_RMID, 0);
goto normal_way;
}
XCHECKPOINT;
XSync(DISP,false);
XCHECKPOINT;
if (guts.xshmattach_failed) goto bad_xshm_attach;
shmctl( i-> xmem. shmid, IPC_RMID, 0);
i-> data_alias = i-> image-> data;
i-> shm = true;
return i;
}
normal_way:
#endif
i-> bytes_per_line_alias = (( width * (bitmap ? 1 : guts.idepth) + 31) / 32) * 4;
i-> data_alias = malloc( height * i-> bytes_per_line_alias + extra_bytes);
if (!i-> data_alias) {
warn("No enough memory");
free(i);
return nil;
}
i-> image = XCreateImage( DISP, VISUAL,
bitmap ? 1 : guts.depth,
bitmap ? XYBitmap : ZPixmap,
0, i-> data_alias,
width, height, 32, i-> bytes_per_line_alias);
XCHECKPOINT;
if ( !i-> image) {
warn("XCreateImage(%d,%d) error", width, height);
free( i-> data_alias);
free( i);
return nil;
}
return i;
}
void
prima_XDestroyImage( XImage * i)
{
if ( i) {
if ( i-> data) {
free( i-> data);
i-> data = nil;
}
((*((i)->f.destroy_image))((i)));
}
}
Bool
prima_free_ximage( PrimaXImage *i)
{
if (!i) return true;
#ifdef USE_MITSHM
if ( i-> shm) {
XShmDetach( DISP, &i-> xmem);
i-> image-> data = nil;
XDestroyImage( i-> image);
shmdt( i-> xmem. shmaddr);
free(i);
return true;
}
#endif
XDestroyImage( i-> image);
free(i);
return true;
}
static Bool
destroy_ximage( PrimaXImage *i)
{
if ( !i) return true;
if ( i-> ref_cnt > 0) {
i-> can_free = true;
return true;
}
return prima_free_ximage( i);
}
static Bool
destroy_one_ximage( PrimaXImage *i, int nothing1, void *nothing2, void *nothing3)
{
prima_free_ximage( i);
return false;
}
void
prima_gc_ximages( void )
{
if ( !guts.ximages) return;
hash_first_that( guts.ximages, (void*)destroy_one_ximage, nil, nil, nil);
}
void
prima_ximage_event( XEvent *eve) /* to be called from apc_event's handle_event */
{
#ifdef USE_MITSHM
XShmCompletionEvent *ev = (XShmCompletionEvent*)eve;
PrimaXImage *i;
if ( eve && eve-> type == guts. shared_image_completion_event) {
i = hash_fetch( guts.ximages, (void*)&ev->shmseg, sizeof(ev->shmseg));
if ( i) {
i-> ref_cnt--;
if ( i-> ref_cnt <= 0) {
hash_delete( guts.ximages, (void*)&ev->shmseg, sizeof(ev->shmseg), false);
if ( i-> can_free)
prima_free_ximage( i);
}
}
}
#endif
}
void
prima_put_ximage(
XDrawable win, GC gc, PrimaXImage *i,
int src_x, int src_y, int dst_x, int dst_y, int width, int height
) {
if ( src_x < 0) {
width += src_x;
dst_x -= src_x;
src_x = 0;
if ( width <= 0) return;
}
#ifdef USE_MITSHM
if ( i-> shm) {
if ( src_y + height > i-> image-> height)
height = i-> image-> height - src_y;
if ( i-> ref_cnt < 0)
i-> ref_cnt = 0;
i-> ref_cnt++;
if ( i-> ref_cnt == 1)
hash_store( guts.ximages, &i->xmem.shmseg, sizeof(i->xmem.shmseg), i);
XShmPutImage( DISP, win, gc, i-> image, src_x, src_y, dst_x, dst_y, width, height, true);
XFlush(DISP);
return;
}
#endif
XPutImage( DISP, win, gc, i-> image, src_x, src_y, dst_x, dst_y, width, height);
XCHECKPOINT;
}
/* image & bitmaps */
Bool
apc_image_create( Handle self)
{
DEFXX;
XX-> type.image = true;
XX-> type.icon = !!kind_of(self, CIcon);
XX-> type.drawable = true;
XX-> image_cache. type = CACHE_AUTODETECT;
XX->size. x = PImage(self)-> w;
XX->size. y = PImage(self)-> h;
return true;
}
static void
clear_caches( Handle self)
{
DEFXX;
prima_palette_free( self, false);
destroy_ximage( XX-> image_cache. icon);
destroy_ximage( XX-> image_cache. image);
XX-> image_cache. icon = nil;
XX-> image_cache. image = nil;
}
Bool
apc_image_destroy( Handle self)
{
clear_caches( self);
return true;
}
ApiHandle
apc_image_get_handle( Handle self)
{
return (ApiHandle) X(self)-> gdrawable;
}
Bool
apc_image_begin_paint_info( Handle self)
{
DEFXX;
PImage img = PImage( self);
Bool bitmap = (img-> type == imBW) || ( guts. idepth == 1);
if ( !DISP) return false;
XX-> gdrawable = XCreatePixmap( DISP, guts. root, 1, 1,
bitmap ? 1 : guts. depth);
XCHECKPOINT;
XX-> type.pixmap = !bitmap;
XX-> type.bitmap = !!bitmap;
prima_prepare_drawable_for_painting( self, false);
XX-> size. x = 1;
XX-> size. y = 1;
return true;
}
Bool
apc_image_end_paint_info( Handle self)
{
DEFXX;
prima_cleanup_drawable_after_painting( self);
if ( XX-> gdrawable) {
XFreePixmap( DISP, XX-> gdrawable);
XCHECKPOINT;
XX-> gdrawable = 0;
}
XX-> size. x = PImage( self)-> w;
XX-> size. y = PImage( self)-> h;
return true;
}
Bool
apc_image_update_change( Handle self)
{
DEFXX;
PImage img = PImage( self);
clear_caches( self);
XX-> size. x = img-> w;
XX-> size. y = img-> h;
if ( guts. depth > 1)
XX-> type.pixmap = (img-> type == imBW) ? 0 : 1;
else
XX-> type.pixmap = 0;
XX-> type.bitmap = !!XX-> type.pixmap;
if ( XX-> cached_region) {
XDestroyRegion( XX-> cached_region);
XX-> cached_region = nil;
}
return true;
}
Bool
apc_dbm_create( Handle self, Bool monochrome)
{
DEFXX;
if ( !DISP) return false;
if ( guts. idepth == 1) monochrome = true;
XX-> type.bitmap = !!monochrome;
XX-> type.pixmap = !monochrome;
XX-> type.dbm = true;
XX-> type.drawable = true;
XX->size. x = ((PDeviceBitmap)(self))-> w;
XX->size. y = ((PDeviceBitmap)(self))-> h;
if ( XX-> size.x == 0) XX-> size.x = 1;
if ( XX-> size.y == 0) XX-> size.y = 1;
XX->gdrawable = XCreatePixmap( DISP, guts. root, XX->size. x, XX->size. y,
monochrome ? 1 : guts.depth);
if (XX-> gdrawable == None) return false;
XCHECKPOINT;
prima_prepare_drawable_for_painting( self, false);
return true;
}
Bool
apc_dbm_destroy( Handle self)
{
DEFXX;
if ( XX->gdrawable) {
prima_cleanup_drawable_after_painting( self);
XFreePixmap( DISP, XX->gdrawable);
XX-> gdrawable = None;
}
return true;
}
ApiHandle
apc_dbm_get_handle( Handle self)
{
return (ApiHandle) X(self)-> gdrawable;
}
static Byte*
mirror_bits( void)
{
static Bool initialized = false;
static Byte bits[256];
unsigned int i, j;
int k;
if (!initialized) {
for ( i = 0; i < 256; i++) {
bits[i] = 0;
j = i;
for ( k = 0; k < 8; k++) {
bits[i] <<= 1;
if ( j & 0x1)
bits[i] |= 1;
j >>= 1;
}
}
initialized = true;
}
return bits;
}
void
prima_copy_xybitmap( unsigned char *data, const unsigned char *idata, int w, int h, int ls, int ils)
{
int y;
register int x;
Byte *mirrored_bits;
/* XXX: MSB/LSB */
if ( guts.bit_order == MSBFirst) {
for ( y = h-1; y >= 0; y--) {
memcpy( ls*(h-y-1)+data, idata+y*ils, ls);
}
} else {
mirrored_bits = mirror_bits();
w = ( w + 7) / 8;
for ( y = h-1; y >= 0; y--) {
register const unsigned char *s = idata+y*ils;
register unsigned char *t = ls*(h-y-1)+data;
for ( x = 0; x < w; x++) {
*t++ = mirrored_bits[*s++];
}
}
}
}
void
prima_mirror_bytes( unsigned char *data, int dataSize)
{
Byte *mirrored_bits = mirror_bits();
while ( dataSize--) {
*data = mirrored_bits[*data];
data++;
}
}
static Bool
create_cache1_1( Image *img, ImageCache *cache, Bool for_icon)
{
unsigned char *data;
int ls;
int h = img-> h, w = img-> w;
int ils;
unsigned char *idata;
PrimaXImage *ximage;
if ( for_icon) {
ils = PIcon(img)->maskLine;
idata = PIcon(img)->mask;
} else {
ils = img-> lineSize;
idata = img-> data;
}
ximage = prima_prepare_ximage( w, h, true);
if (!ximage) return false;
ls = get_ximage_bytes_per_line(ximage);
data = get_ximage_data(ximage);
prima_copy_xybitmap( data, idata, w, h, ls, ils);
if ( for_icon) {
cache-> icon = ximage;
} else {
cache-> image = ximage;
}
return true;
}
static void
create_rgb_to_8_lut( int ncolors, const PRGBColor pal, Pixel8 *lut)
{
int i;
for ( i = 0; i < ncolors; i++)
lut[i] =
(((pal[i].r << guts. red_range ) >> 8) << guts. red_shift) |
(((pal[i].g << guts. green_range) >> 8) << guts. green_shift) |
(((pal[i].b << guts. blue_range ) >> 8) << guts. blue_shift);
}
static void
create_rgb_to_16_lut( int ncolors, const PRGBColor pal, Pixel16 *lut)
{
int i;
for ( i = 0; i < ncolors; i++)
lut[i] =
(((pal[i].r << guts. red_range ) >> 8) << guts. red_shift) |
(((pal[i].g << guts. green_range) >> 8) << guts. green_shift) |
(((pal[i].b << guts. blue_range ) >> 8) << guts. blue_shift);
if ( guts.machine_byte_order != guts.byte_order)
for ( i = 0; i < ncolors; i++)
lut[i] = REVERSE_BYTES_16(lut[i]);
}
static int *
rank_rgb_shifts( void)
{
static int shift[3];
static Bool shift_unknown = true;
if ( shift_unknown) {
int xchg;
shift[0] = guts. red_shift;
shift[1] = guts. green_shift;
if ( shift[1] < shift[0]) {
xchg = shift[0];
shift[0] = shift[1];
shift[1] = xchg;
}
shift[2] = guts. blue_shift;
if ( shift[2] < shift[0]) {
xchg = shift[2];
shift[2] = shift[1];
shift[1] = shift[0];
shift[0] = xchg;
} else if ( shift[2] < shift[1]) {
xchg = shift[1];
shift[1] = shift[2];
shift[2] = xchg;
}
shift_unknown = false;
}
return shift;
}
static void
create_rgb_to_xpixel_lut( int ncolors, const PRGBColor pal, XPixel *lut)
{
int i;
for ( i = 0; i < ncolors; i++)
lut[i] =
(((pal[i].r << guts. red_range ) >> 8) << guts. red_shift) |
(((pal[i].g << guts. green_range) >> 8) << guts. green_shift) |
(((pal[i].b << guts. blue_range ) >> 8) << guts. blue_shift);
if ( guts.machine_byte_order != guts.byte_order)
for ( i = 0; i < ncolors; i++)
lut[i] = REVERSE_BYTES_32(lut[i]);
}
static Bool
create_cache4_8( Image *img, ImageCache *cache)
{
static Bool init = false;
static unsigned char lut1[ NPalEntries8];
static unsigned char lut2[ NPalEntries8];
unsigned char *data;
int x, y;
int ls;
int h = img-> h, w = img-> w, ww = (w >> 1) + (w & 1);
unsigned i;
if ( !init) {
init = true;
for ( i = 0; i < NPalEntries8; i++) {
lut1[i] = ((i & MSNibble) >> MSNibbleShift);
lut2[i] = ((i & LSNibble) >> LSNibbleShift);
}
}
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register unsigned char *line = img-> data + y*img-> lineSize;
register unsigned char *d = (unsigned char*)(ls*(h-y-1)+data);
for ( x = 0; x < ww; x++) {
*d++ = lut1[line[x]];
*d++ = lut2[line[x]];
}
}
return true;
}
static Bool
create_cache4_16( Image *img, ImageCache *cache)
{
Duplet16 lut[ NPalEntries8];
Pixel16 lut1[ NPalEntries4];
unsigned char *data;
int x, y;
int ls;
int h = img-> h, w = img-> w;
unsigned i;
create_rgb_to_16_lut( NPalEntries4, img-> palette, lut1);
for ( i = 0; i < NPalEntries8; i++) {
lut[i]. a = lut1[(i & MSNibble) >> MSNibbleShift];
lut[i]. b = lut1[(i & LSNibble) >> LSNibbleShift];
}
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register unsigned char *line = img-> data + y*img-> lineSize;
register Duplet16 *d = (Duplet16*)(ls*(h-y-1)+data);
for ( x = 0; x < (w+1)/2; x++) {
*d++ = lut[line[x]];
}
}
return true;
}
static Bool
create_cache4_24( Image *img, ImageCache *cache)
{
Duplet24 lut[ NPalEntries8];
XPixel lut1[ NPalEntries4];
unsigned char *data;
int x, y;
int ls;
int h = img-> h, w = img-> w;
unsigned i;
int *shift = rank_rgb_shifts();
create_rgb_to_xpixel_lut( NPalEntries4, img-> palette, lut1);
for ( i = 0; i < NPalEntries8; i++) {
lut[i]. a0 = (ColorComponent)((lut1[(i & MSNibble) >> MSNibbleShift] >> shift[0]) & ColorComponentMask);
lut[i]. a1 = (ColorComponent)((lut1[(i & MSNibble) >> MSNibbleShift] >> shift[1]) & ColorComponentMask);
lut[i]. a2 = (ColorComponent)((lut1[(i & MSNibble) >> MSNibbleShift] >> shift[2]) & ColorComponentMask);
lut[i]. b0 = (ColorComponent)((lut1[(i & LSNibble) >> LSNibbleShift] >> shift[0]) & ColorComponentMask);
lut[i]. b1 = (ColorComponent)((lut1[(i & LSNibble) >> LSNibbleShift] >> shift[1]) & ColorComponentMask);
lut[i]. b2 = (ColorComponent)((lut1[(i & LSNibble) >> LSNibbleShift] >> shift[2]) & ColorComponentMask);
}
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register unsigned char *line = img-> data + y*img-> lineSize;
register Duplet24 *d = (Duplet24 *)(ls*(h-y-1)+data);
for ( x = 0; x < (w+1)/2; x++) {
*d++ = lut[line[x]];
}
}
return true;
}
static Bool
create_cache4_32( Image *img, ImageCache *cache)
{
Duplet32 lut[ NPalEntries8];
XPixel lut1[ NPalEntries4];
unsigned char *data;
int x, y;
int ls;
int h = img-> h, w = img-> w;
unsigned i;
create_rgb_to_xpixel_lut( NPalEntries4, img-> palette, lut1);
for ( i = 0; i < NPalEntries8; i++) {
lut[i]. a = lut1[(i & MSNibble) >> MSNibbleShift];
lut[i]. b = lut1[(i & LSNibble) >> LSNibbleShift];
}
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register unsigned char *line = img-> data + y*img-> lineSize;
register Duplet32 *d = (Duplet32 *)(ls*(h-y-1)+data);
for ( x = 0; x < (w+1)/2; x++) {
*d++ = lut[line[x]];
}
}
return true;
}
static Bool
create_cache_equal( Image *img, ImageCache *cache)
{
unsigned char *data;
int y, ls, lls, h = img-> h;
cache->image = prima_prepare_ximage( img-> w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
lls = (ls > img-> lineSize) ? img-> lineSize : ls;
for ( y = h-1; y >= 0; y--)
memcpy( data + ls * (h - y - 1), img-> data + y*img-> lineSize, lls);
return true;
}
static Bool
create_cache8_8_tc( Image *img, ImageCache *cache)
{
Pixel8 lut[ NPalEntries8];
Pixel8 *data;
int x, y;
int ls;
int h = img-> h, w = img-> w;
create_rgb_to_8_lut( img-> palSize, img-> palette, lut);
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register unsigned char *line = img-> data + y*img-> lineSize;
register Pixel8 *d = (Pixel8*)(ls*(h-y-1)+(unsigned char *)data);
for ( x = 0; x < w; x++) {
*d++ = lut[line[x]];
}
}
return true;
}
static Bool
create_cache8_16( Image *img, ImageCache *cache)
{
Pixel16 lut[ NPalEntries8];
Pixel16 *data;
int x, y;
int ls;
int h = img-> h, w = img-> w;
create_rgb_to_16_lut( img-> palSize, img-> palette, lut);
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register unsigned char *line = img-> data + y*img-> lineSize;
register Pixel16 *d = (Pixel16*)(ls*(h-y-1)+(unsigned char *)data);
for ( x = 0; x < w; x++) {
*d++ = lut[line[x]];
}
}
return true;
}
static Bool
create_cache8_24( Image *img, ImageCache *cache)
{
Pixel24 lut[ NPalEntries8];
XPixel lut1[ NPalEntries8];
Pixel24 *data;
int i;
int x, y;
int ls;
int h = img-> h, w = img-> w;
int *shift = rank_rgb_shifts();
create_rgb_to_xpixel_lut( img-> palSize, img-> palette, lut1);
for ( i = 0; i < NPalEntries8; i++) {
lut[i]. a0 = (ColorComponent)((lut1[i] >> shift[0]) & ColorComponentMask);
lut[i]. a1 = (ColorComponent)((lut1[i] >> shift[1]) & ColorComponentMask);
lut[i]. a2 = (ColorComponent)((lut1[i] >> shift[2]) & ColorComponentMask);
}
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register unsigned char *line = img-> data + y*img-> lineSize;
register Pixel24 *d = (Pixel24*)(ls*(h-y-1)+(unsigned char *)data);
for ( x = 0; x < w; x++) {
*d++ = lut[line[x]];
}
}
return true;
}
static Bool
create_cache8_32( Image *img, ImageCache *cache)
{
XPixel lut[ NPalEntries8];
Pixel32 *data;
int x, y;
int ls;
int h = img-> h, w = img-> w;
create_rgb_to_xpixel_lut( img-> palSize, img-> palette, lut);
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register unsigned char *line = img-> data + y*img-> lineSize;
register Pixel32 *d = (Pixel32*)(ls*(h-y-1)+(unsigned char *)data);
for ( x = 0; x < w; x++) {
*d++ = lut[line[x]];
}
}
return true;
}
static Bool
create_cache24_16( Image *img, ImageCache *cache)
{
static Pixel16 lur[NPalEntries8], lub[NPalEntries8], lug[NPalEntries8];
static Bool initialize = true;
U16 *data;
int x, y;
int i;
RGBColor pal[NPalEntries8];
int ls;
int h = img-> h, w = img-> w;
if ( initialize) {
for ( i = 0; i < NPalEntries8; i++) {
pal[i]. r = i; pal[i]. g = 0; pal[i]. b = 0;
}
create_rgb_to_16_lut( NPalEntries8, pal, lur);
for ( i = 0; i < NPalEntries8; i++) {
pal[i]. r = 0; pal[i]. g = i; pal[i]. b = 0;
}
create_rgb_to_16_lut( NPalEntries8, pal, lug);
for ( i = 0; i < NPalEntries8; i++) {
pal[i]. r = 0; pal[i]. g = 0; pal[i]. b = i;
}
create_rgb_to_16_lut( NPalEntries8, pal, lub);
initialize = false;
}
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register Pixel24 *line = (Pixel24*)(img-> data + y*img-> lineSize);
register Pixel16 *d = (Pixel16*)(ls*(h-y-1)+(unsigned char *)data);
for ( x = 0; x < w; x++) {
*d++ = lub[line->a0] | lug[line->a1] | lur[line->a2];
line++;
}
}
return true;
}
static Bool
create_cache24_32( Image *img, ImageCache *cache)
{
static XPixel lur[NPalEntries8], lub[NPalEntries8], lug[NPalEntries8];
static Bool initialize = true;
RGBColor pal[NPalEntries8];
Pixel32 *data;
int x, y;
int i, ls;
int h = img-> h, w = img-> w;
if ( initialize) {
for ( i = 0; i < NPalEntries8; i++) {
pal[i]. r = i; pal[i]. g = 0; pal[i]. b = 0;
}
create_rgb_to_xpixel_lut( NPalEntries8, pal, lur);
for ( i = 0; i < NPalEntries8; i++) {
pal[i]. r = 0; pal[i]. g = i; pal[i]. b = 0;
}
create_rgb_to_xpixel_lut( NPalEntries8, pal, lug);
for ( i = 0; i < NPalEntries8; i++) {
pal[i]. r = 0; pal[i]. g = 0; pal[i]. b = i;
}
create_rgb_to_xpixel_lut( NPalEntries8, pal, lub);
initialize = false;
}
cache->image = prima_prepare_ximage( w, h, false);
if ( !cache->image) return false;
ls = get_ximage_bytes_per_line( cache->image);
data = get_ximage_data( cache->image);
for ( y = h-1; y >= 0; y--) {
register Pixel24 *line = (Pixel24*)(img-> data + y*img-> lineSize);
register Pixel32 *d = (Pixel32*)(ls*(h-y-1)+(unsigned char *)data);
for ( x = 0; x < w; x++) {
*d++ = lub[line->a0] | lug[line->a1] | lur[line->a2];
line++;
}
}
return true;
}
static Bool
create_cache1( Image* img, ImageCache *cache, int bpp)
{
return create_cache1_1( img, cache, false);
}
static Bool
create_cache4( Image* img, ImageCache *cache, int bpp)
{
switch (bpp) {
case 8: return create_cache4_8( img, cache);
case 16: return create_cache4_16( img, cache);
case 24: return create_cache4_24( img, cache);
case 32: return create_cache4_32( img, cache);
default: warn( "UAI_011: unsupported image conversion: %d => %d", 4, bpp);
}
return false;
}
static Bool
create_cache8( Image* img, ImageCache *cache, int bpp)
{
switch (bpp) {
case 8:
return ( guts. visualClass == TrueColor || guts. visualClass == DirectColor) ?
create_cache8_8_tc( img, cache) :
create_cache_equal( img, cache);
case 16: return create_cache8_16( img, cache);
case 24: return create_cache8_24( img, cache);
case 32: return create_cache8_32( img, cache);
default: warn( "UAI_012: unsupported image conversion: %d => %d", 8, bpp);
}
return false;
}
static Bool
create_cache24( Image* img, ImageCache *cache, int bpp)
{
switch (bpp) {
case 16: return create_cache24_16( img, cache); break;
case 32: return create_cache24_32( img, cache); break;
default: warn( "UAI_013: unsupported image conversion: %d => %d", 24, bpp);
}
return false;
}
static void
cache_remap_8( Image*img, ImageCache* cache)
{
int sz = img-> h * cache-> image-> bytes_per_line_alias;
Byte * p = cache-> image-> data_alias;
while ( sz--) {
*p = guts. mappingPlace[ *p];
p++;
}
}