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Imager.xs
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Imager.xs
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#ifdef __cplusplus
extern "C" {
#endif
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include "ppport.h"
#ifdef __cplusplus
#endif
#include "image.h"
#include "feat.h"
#include "dynaload.h"
#include "regmach.h"
typedef io_glue* Imager__IO;
typedef i_color* Imager__Color;
typedef i_fcolor* Imager__Color__Float;
typedef i_img* Imager__ImgRaw;
#ifdef HAVE_LIBTT
typedef TT_Fonthandle* Imager__TTHandle;
#endif
#ifdef HAVE_FT2
typedef FT2_Fonthandle* Imager__Font__FT2;
#endif
typedef struct i_reader_data_tag
{
/* presumably a CODE ref or name of a sub */
SV *sv;
} i_reader_data;
/* used by functions that want callbacks */
static int read_callback(char *userdata, char *buffer, int need, int want) {
i_reader_data *rd = (i_reader_data *)userdata;
int count;
int result;
SV *data;
dSP; dTARG = sv_newmortal();
/* thanks to Simon Cozens for help with the dTARG above */
ENTER;
SAVETMPS;
EXTEND(SP, 2);
PUSHMARK(SP);
PUSHi(want);
PUSHi(need);
PUTBACK;
count = perl_call_sv(rd->sv, G_SCALAR);
SPAGAIN;
if (count != 1)
croak("Result of perl_call_sv(..., G_SCALAR) != 1");
data = POPs;
if (SvOK(data)) {
STRLEN len;
char *ptr = SvPV(data, len);
if (len > want)
croak("Too much data returned in reader callback");
memcpy(buffer, ptr, len);
result = len;
}
else {
result = -1;
}
PUTBACK;
FREETMPS;
LEAVE;
return result;
}
typedef struct
{
SV *sv; /* a coderef or sub name */
} i_writer_data;
/* used by functions that want callbacks */
static int write_callback(char *userdata, char const *data, int size) {
i_writer_data *wd = (i_writer_data *)userdata;
int count;
int success;
SV *sv;
dSP;
ENTER;
SAVETMPS;
EXTEND(SP, 1);
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv((char *)data, size)));
PUTBACK;
count = perl_call_sv(wd->sv, G_SCALAR);
SPAGAIN;
if (count != 1)
croak("Result of perl_call_sv(..., G_SCALAR) != 1");
sv = POPs;
success = SvTRUE(sv);
PUTBACK;
FREETMPS;
LEAVE;
return success;
}
struct value_name {
char *name;
int value;
};
static int lookup_name(struct value_name *names, int count, char *name, int def_value)
{
int i;
for (i = 0; i < count; ++i)
if (strEQ(names[i].name, name))
return names[i].value;
return def_value;
}
static struct value_name transp_names[] =
{
{ "none", tr_none },
{ "threshold", tr_threshold },
{ "errdiff", tr_errdiff },
{ "ordered", tr_ordered, },
};
static struct value_name make_color_names[] =
{
{ "none", mc_none, },
{ "webmap", mc_web_map, },
{ "addi", mc_addi, },
};
static struct value_name translate_names[] =
{
#ifdef HAVE_LIBGIF
{ "giflib", pt_giflib, },
#endif
{ "closest", pt_closest, },
{ "perturb", pt_perturb, },
{ "errdiff", pt_errdiff, },
};
static struct value_name errdiff_names[] =
{
{ "floyd", ed_floyd, },
{ "jarvis", ed_jarvis, },
{ "stucki", ed_stucki, },
{ "custom", ed_custom, },
};
static struct value_name orddith_names[] =
{
{ "random", od_random, },
{ "dot8", od_dot8, },
{ "dot4", od_dot4, },
{ "hline", od_hline, },
{ "vline", od_vline, },
{ "/line", od_slashline, },
{ "slashline", od_slashline, },
{ "\\line", od_backline, },
{ "backline", od_backline, },
{ "tiny", od_tiny, },
{ "custom", od_custom, },
};
/* look through the hash for quantization options */
static void handle_quant_opts(i_quantize *quant, HV *hv)
{
/*** POSSIBLY BROKEN: do I need to unref the SV from hv_fetch ***/
SV **sv;
int i;
STRLEN len;
char *str;
sv = hv_fetch(hv, "transp", 6, 0);
if (sv && *sv && (str = SvPV(*sv, len))) {
quant->transp =
lookup_name(transp_names, sizeof(transp_names)/sizeof(*transp_names),
str, tr_none);
if (quant->transp != tr_none) {
quant->tr_threshold = 127;
sv = hv_fetch(hv, "tr_threshold", 12, 0);
if (sv && *sv)
quant->tr_threshold = SvIV(*sv);
}
if (quant->transp == tr_errdiff) {
sv = hv_fetch(hv, "tr_errdiff", 10, 0);
if (sv && *sv && (str = SvPV(*sv, len)))
quant->tr_errdiff = lookup_name(errdiff_names, sizeof(errdiff_names)/sizeof(*errdiff_names), str, ed_floyd);
}
if (quant->transp == tr_ordered) {
quant->tr_orddith = od_tiny;
sv = hv_fetch(hv, "tr_orddith", 10, 0);
if (sv && *sv && (str = SvPV(*sv, len)))
quant->tr_orddith = lookup_name(orddith_names, sizeof(orddith_names)/sizeof(*orddith_names), str, od_random);
if (quant->tr_orddith == od_custom) {
sv = hv_fetch(hv, "tr_map", 6, 0);
if (sv && *sv && SvTYPE(SvRV(*sv)) == SVt_PVAV) {
AV *av = (AV*)SvRV(*sv);
len = av_len(av) + 1;
if (len > sizeof(quant->tr_custom))
len = sizeof(quant->tr_custom);
for (i = 0; i < len; ++i) {
SV **sv2 = av_fetch(av, i, 0);
if (sv2 && *sv2) {
quant->tr_custom[i] = SvIV(*sv2);
}
}
while (i < sizeof(quant->tr_custom))
quant->tr_custom[i++] = 0;
}
}
}
}
quant->make_colors = mc_addi;
sv = hv_fetch(hv, "make_colors", 11, 0);
if (sv && *sv && (str = SvPV(*sv, len))) {
quant->make_colors =
lookup_name(make_color_names, sizeof(make_color_names)/sizeof(*make_color_names), str, mc_addi);
}
sv = hv_fetch(hv, "colors", 6, 0);
if (sv && *sv && SvROK(*sv) && SvTYPE(SvRV(*sv)) == SVt_PVAV) {
/* needs to be an array of Imager::Color
note that the caller allocates the mc_color array and sets mc_size
to it's size */
AV *av = (AV *)SvRV(*sv);
quant->mc_count = av_len(av)+1;
if (quant->mc_count > quant->mc_size)
quant->mc_count = quant->mc_size;
for (i = 0; i < quant->mc_count; ++i) {
SV **sv1 = av_fetch(av, i, 0);
if (sv1 && *sv1 && SvROK(*sv1) && sv_derived_from(*sv1, "Imager::Color")) {
i_color *col = (i_color *)SvIV((SV*)SvRV(*sv1));
quant->mc_colors[i] = *col;
}
}
}
sv = hv_fetch(hv, "max_colors", 10, 0);
if (sv && *sv) {
i = SvIV(*sv);
if (i <= quant->mc_size && i >= quant->mc_count)
quant->mc_size = i;
}
quant->translate = pt_closest;
sv = hv_fetch(hv, "translate", 9, 0);
if (sv && *sv && (str = SvPV(*sv, len))) {
quant->translate = lookup_name(translate_names, sizeof(translate_names)/sizeof(*translate_names), str, pt_closest);
}
sv = hv_fetch(hv, "errdiff", 7, 0);
if (sv && *sv && (str = SvPV(*sv, len))) {
quant->errdiff = lookup_name(errdiff_names, sizeof(errdiff_names)/sizeof(*errdiff_names), str, ed_floyd);
}
if (quant->translate == pt_errdiff && quant->errdiff == ed_custom) {
/* get the error diffusion map */
sv = hv_fetch(hv, "errdiff_width", 13, 0);
if (sv && *sv)
quant->ed_width = SvIV(*sv);
sv = hv_fetch(hv, "errdiff_height", 14, 0);
if (sv && *sv)
quant->ed_height = SvIV(*sv);
sv = hv_fetch(hv, "errdiff_orig", 12, 0);
if (sv && *sv)
quant->ed_orig = SvIV(*sv);
if (quant->ed_width > 0 && quant->ed_height > 0) {
int sum = 0;
quant->ed_map = mymalloc(sizeof(int)*quant->ed_width*quant->ed_height);
sv = hv_fetch(hv, "errdiff_map", 11, 0);
if (sv && *sv && SvROK(*sv) && SvTYPE(SvRV(*sv)) == SVt_PVAV) {
AV *av = (AV*)SvRV(*sv);
len = av_len(av) + 1;
if (len > quant->ed_width * quant->ed_height)
len = quant->ed_width * quant->ed_height;
for (i = 0; i < len; ++i) {
SV **sv2 = av_fetch(av, i, 0);
if (sv2 && *sv2) {
quant->ed_map[i] = SvIV(*sv2);
sum += quant->ed_map[i];
}
}
}
if (!sum) {
/* broken map */
myfree(quant->ed_map);
quant->ed_map = 0;
quant->errdiff = ed_floyd;
}
}
}
sv = hv_fetch(hv, "perturb", 7, 0);
if (sv && *sv)
quant->perturb = SvIV(*sv);
}
/* look through the hash for options to add to opts */
static void handle_gif_opts(i_gif_opts *opts, HV *hv)
{
SV **sv;
int i;
/**((char *)0) = '\0';*/
sv = hv_fetch(hv, "gif_each_palette", 16, 0);
if (sv && *sv)
opts->each_palette = SvIV(*sv);
sv = hv_fetch(hv, "interlace", 9, 0);
if (sv && *sv)
opts->interlace = SvIV(*sv);
sv = hv_fetch(hv, "gif_delays", 10, 0);
if (sv && *sv && SvROK(*sv) && SvTYPE(SvRV(*sv)) == SVt_PVAV) {
AV *av = (AV*)SvRV(*sv);
opts->delay_count = av_len(av)+1;
opts->delays = mymalloc(sizeof(int) * opts->delay_count);
for (i = 0; i < opts->delay_count; ++i) {
SV *sv1 = *av_fetch(av, i, 0);
opts->delays[i] = SvIV(sv1);
}
}
sv = hv_fetch(hv, "gif_user_input", 14, 0);
if (sv && *sv && SvROK(*sv) && SvTYPE(SvRV(*sv)) == SVt_PVAV) {
AV *av = (AV*)SvRV(*sv);
opts->user_input_count = av_len(av)+1;
opts->user_input_flags = mymalloc(opts->user_input_count);
for (i = 0; i < opts->user_input_count; ++i) {
SV *sv1 = *av_fetch(av, i, 0);
opts->user_input_flags[i] = SvIV(sv1) != 0;
}
}
sv = hv_fetch(hv, "gif_disposal", 12, 0);
if (sv && *sv && SvROK(*sv) && SvTYPE(SvRV(*sv)) == SVt_PVAV) {
AV *av = (AV*)SvRV(*sv);
opts->disposal_count = av_len(av)+1;
opts->disposal = mymalloc(opts->disposal_count);
for (i = 0; i < opts->disposal_count; ++i) {
SV *sv1 = *av_fetch(av, i, 0);
opts->disposal[i] = SvIV(sv1);
}
}
sv = hv_fetch(hv, "gif_tran_color", 14, 0);
if (sv && *sv && SvROK(*sv) && sv_derived_from(*sv, "Imager::Color")) {
i_color *col = (i_color *)SvIV((SV *)SvRV(*sv));
opts->tran_color = *col;
}
sv = hv_fetch(hv, "gif_positions", 13, 0);
if (sv && *sv && SvROK(*sv) && SvTYPE(SvRV(*sv)) == SVt_PVAV) {
AV *av = (AV *)SvRV(*sv);
opts->position_count = av_len(av) + 1;
opts->positions = mymalloc(sizeof(i_gif_pos) * opts->position_count);
for (i = 0; i < opts->position_count; ++i) {
SV **sv2 = av_fetch(av, i, 0);
opts->positions[i].x = opts->positions[i].y = 0;
if (sv && *sv && SvROK(*sv) && SvTYPE(SvRV(*sv)) == SVt_PVAV) {
AV *av2 = (AV*)SvRV(*sv2);
SV **sv3;
sv3 = av_fetch(av2, 0, 0);
if (sv3 && *sv3)
opts->positions[i].x = SvIV(*sv3);
sv3 = av_fetch(av2, 1, 0);
if (sv3 && *sv3)
opts->positions[i].y = SvIV(*sv3);
}
}
}
/* Netscape2.0 loop count extension */
sv = hv_fetch(hv, "gif_loop_count", 14, 0);
if (sv && *sv)
opts->loop_count = SvIV(*sv);
}
/* copies the color map from the hv into the colors member of the HV */
static void copy_colors_back(HV *hv, i_quantize *quant) {
SV **sv;
AV *av;
int i;
SV *work;
sv = hv_fetch(hv, "colors", 6, 0);
if (!sv || !*sv || !SvROK(*sv) || SvTYPE(SvRV(*sv)) != SVt_PVAV) {
SV *ref;
av = newAV();
ref = newRV_inc((SV*) av);
sv = hv_store(hv, "colors", 6, ref, 0);
}
else {
av = (AV *)SvRV(*sv);
}
av_extend(av, quant->mc_count+1);
for (i = 0; i < quant->mc_count; ++i) {
i_color *in = quant->mc_colors+i;
Imager__Color c = ICL_new_internal(in->rgb.r, in->rgb.g, in->rgb.b, 255);
work = sv_newmortal();
sv_setref_pv(work, "Imager::Color", (void *)c);
SvREFCNT_inc(work);
if (!av_store(av, i, work)) {
SvREFCNT_dec(work);
}
}
}
/* loads the segments of a fountain fill into an array */
i_fountain_seg *load_fount_segs(AV *asegs, int *count) {
/* Each element of segs must contain:
[ start, middle, end, c0, c1, segtype, colortrans ]
start, middle, end are doubles from 0 to 1
c0, c1 are Imager::Color::Float or Imager::Color objects
segtype, colortrans are ints
*/
int i, j;
AV *aseg;
SV *sv;
i_fountain_seg *segs;
double work[3];
int worki[2];
*count = av_len(asegs)+1;
if (*count < 1)
croak("i_fountain must have at least one segment");
segs = mymalloc(sizeof(i_fountain_seg) * *count);
for(i = 0; i < *count; i++) {
SV **sv1 = av_fetch(asegs, i, 0);
if (!sv1 || !*sv1 || !SvROK(*sv1)
|| SvTYPE(SvRV(*sv1)) != SVt_PVAV) {
myfree(segs);
croak("i_fountain: segs must be an arrayref of arrayrefs");
}
aseg = (AV *)SvRV(*sv1);
if (av_len(aseg) != 7-1) {
myfree(segs);
croak("i_fountain: a segment must have 7 members");
}
for (j = 0; j < 3; ++j) {
SV **sv2 = av_fetch(aseg, j, 0);
if (!sv2 || !*sv2) {
myfree(segs);
croak("i_fountain: XS error");
}
work[j] = SvNV(*sv2);
}
segs[i].start = work[0];
segs[i].middle = work[1];
segs[i].end = work[2];
for (j = 0; j < 2; ++j) {
SV **sv3 = av_fetch(aseg, 3+j, 0);
if (!sv3 || !*sv3 || !SvROK(*sv3) ||
(!sv_derived_from(*sv3, "Imager::Color")
&& !sv_derived_from(*sv3, "Imager::Color::Float"))) {
myfree(segs);
croak("i_fountain: segs must contain colors in elements 3 and 4");
}
if (sv_derived_from(*sv3, "Imager::Color::Float")) {
segs[i].c[j] = *(i_fcolor *)SvIV((SV *)SvRV(*sv3));
}
else {
i_color c = *(i_color *)SvIV((SV *)SvRV(*sv3));
int ch;
for (ch = 0; ch < MAXCHANNELS; ++ch) {
segs[i].c[j].channel[ch] = c.channel[ch] / 255.0;
}
}
}
for (j = 0; j < 2; ++j) {
SV **sv2 = av_fetch(aseg, j+5, 0);
if (!sv2 || !*sv2) {
myfree(segs);
croak("i_fountain: XS error");
}
worki[j] = SvIV(*sv2);
}
segs[i].type = worki[0];
segs[i].color = worki[1];
}
return segs;
}
/* I don't think ICLF_* names belong at the C interface
this makes the XS code think we have them, to let us avoid
putting function bodies in the XS code
*/
#define ICLF_new_internal(r, g, b, a) i_fcolor_new((r), (g), (b), (a))
#define ICLF_DESTROY(cl) i_fcolor_destroy(cl)
/* for the fill objects
Since a fill object may later have dependent images, (or fills!)
we need perl wrappers - oh well
*/
#define IFILL_DESTROY(fill) i_fill_destroy(fill);
typedef i_fill_t* Imager__FillHandle;
MODULE = Imager PACKAGE = Imager::Color PREFIX = ICL_
Imager::Color
ICL_new_internal(r,g,b,a)
unsigned char r
unsigned char g
unsigned char b
unsigned char a
void
ICL_DESTROY(cl)
Imager::Color cl
void
ICL_set_internal(cl,r,g,b,a)
Imager::Color cl
unsigned char r
unsigned char g
unsigned char b
unsigned char a
PPCODE:
ICL_set_internal(cl, r, g, b, a);
EXTEND(SP, 1);
PUSHs(ST(0));
void
ICL_info(cl)
Imager::Color cl
void
ICL_rgba(cl)
Imager::Color cl
PPCODE:
EXTEND(SP, 4);
PUSHs(sv_2mortal(newSVnv(cl->rgba.r)));
PUSHs(sv_2mortal(newSVnv(cl->rgba.g)));
PUSHs(sv_2mortal(newSVnv(cl->rgba.b)));
PUSHs(sv_2mortal(newSVnv(cl->rgba.a)));
MODULE = Imager PACKAGE = Imager::Color::Float PREFIX=ICLF_
Imager::Color::Float
ICLF_new_internal(r, g, b, a)
double r
double g
double b
double a
void
ICLF_DESTROY(cl)
Imager::Color::Float cl
void
ICLF_rgba(cl)
Imager::Color::Float cl
PREINIT:
int ch;
PPCODE:
EXTEND(SP, MAXCHANNELS);
for (ch = 0; ch < MAXCHANNELS; ++ch) {
/* printf("%d: %g\n", ch, cl->channel[ch]); */
PUSHs(sv_2mortal(newSVnv(cl->channel[ch])));
}
void
ICLF_set_internal(cl,r,g,b,a)
Imager::Color::Float cl
double r
double g
double b
double a
PPCODE:
cl->rgba.r = r;
cl->rgba.g = g;
cl->rgba.b = b;
cl->rgba.a = a;
EXTEND(SP, 1);
PUSHs(ST(0));
MODULE = Imager PACKAGE = Imager::ImgRaw PREFIX = IIM_
Imager::ImgRaw
IIM_new(x,y,ch)
int x
int y
int ch
void
IIM_DESTROY(im)
Imager::ImgRaw im
MODULE = Imager PACKAGE = Imager
PROTOTYPES: ENABLE
Imager::IO
io_new_fd(fd)
int fd
Imager::IO
io_new_bufchain()
void
io_slurp(ig)
Imager::IO ig
PREINIT:
unsigned char* data;
size_t tlength;
SV* r;
PPCODE:
data = NULL;
tlength = io_slurp(ig, &data);
r = sv_newmortal();
EXTEND(SP,1);
PUSHs(sv_2mortal(newSVpv(data,tlength)));
myfree(data);
void
i_list_formats()
PREINIT:
char* item;
int i;
PPCODE:
i=0;
while( (item=i_format_list[i++]) != NULL ) {
EXTEND(SP, 1);
PUSHs(sv_2mortal(newSVpv(item,0)));
}
undef_int
i_has_format(frmt)
char* frmt
Imager::ImgRaw
i_img_new()
Imager::ImgRaw
i_img_empty(im,x,y)
Imager::ImgRaw im
int x
int y
Imager::ImgRaw
i_img_empty_ch(im,x,y,ch)
Imager::ImgRaw im
int x
int y
int ch
void
init_log(name,level)
char* name
int level
void
i_img_exorcise(im)
Imager::ImgRaw im
void
i_img_destroy(im)
Imager::ImgRaw im
void
i_img_info(im)
Imager::ImgRaw im
PREINIT:
int info[4];
PPCODE:
i_img_info(im,info);
EXTEND(SP, 4);
PUSHs(sv_2mortal(newSViv(info[0])));
PUSHs(sv_2mortal(newSViv(info[1])));
PUSHs(sv_2mortal(newSViv(info[2])));
PUSHs(sv_2mortal(newSViv(info[3])));
void
i_img_setmask(im,ch_mask)
Imager::ImgRaw im
int ch_mask
int
i_img_getmask(im)
Imager::ImgRaw im
int
i_img_getchannels(im)
Imager::ImgRaw im
void
i_img_getdata(im)
Imager::ImgRaw im
PPCODE:
EXTEND(SP, 1);
PUSHs(im->idata ? sv_2mortal(newSVpv(im->idata, im->bytes))
: &PL_sv_undef);
void
i_draw(im,x1,y1,x2,y2,val)
Imager::ImgRaw im
int x1
int y1
int x2
int y2
Imager::Color val
void
i_line_aa(im,x1,y1,x2,y2,val)
Imager::ImgRaw im
int x1
int y1
int x2
int y2
Imager::Color val
void
i_box(im,x1,y1,x2,y2,val)
Imager::ImgRaw im
int x1
int y1
int x2
int y2
Imager::Color val
void
i_box_filled(im,x1,y1,x2,y2,val)
Imager::ImgRaw im
int x1
int y1
int x2
int y2
Imager::Color val
void
i_box_cfill(im,x1,y1,x2,y2,fill)
Imager::ImgRaw im
int x1
int y1
int x2
int y2
Imager::FillHandle fill
void
i_arc(im,x,y,rad,d1,d2,val)
Imager::ImgRaw im
int x
int y
float rad
float d1
float d2
Imager::Color val
void
i_arc_cfill(im,x,y,rad,d1,d2,fill)
Imager::ImgRaw im
int x
int y
float rad
float d1
float d2
Imager::FillHandle fill
void
i_circle_aa(im,x,y,rad,val)
Imager::ImgRaw im
float x
float y
float rad
Imager::Color val
void
i_bezier_multi(im,xc,yc,val)
Imager::ImgRaw im
Imager::Color val
PREINIT:
double *x,*y;
int len;
AV *av1;
AV *av2;
SV *sv1;
SV *sv2;
int i;
PPCODE:
ICL_info(val);
if (!SvROK(ST(1))) croak("Imager: Parameter 1 to i_bezier_multi must be a reference to an array\n");
if (SvTYPE(SvRV(ST(1))) != SVt_PVAV) croak("Imager: Parameter 1 to i_bezier_multi must be a reference to an array\n");
if (!SvROK(ST(2))) croak("Imager: Parameter 2 to i_bezier_multi must be a reference to an array\n");
if (SvTYPE(SvRV(ST(2))) != SVt_PVAV) croak("Imager: Parameter 2 to i_bezier_multi must be a reference to an array\n");
av1=(AV*)SvRV(ST(1));
av2=(AV*)SvRV(ST(2));
if (av_len(av1) != av_len(av2)) croak("Imager: x and y arrays to i_bezier_multi must be equal length\n");
len=av_len(av1)+1;
x=mymalloc( len*sizeof(double) );
y=mymalloc( len*sizeof(double) );
for(i=0;i<len;i++) {
sv1=(*(av_fetch(av1,i,0)));
sv2=(*(av_fetch(av2,i,0)));
x[i]=(double)SvNV(sv1);
y[i]=(double)SvNV(sv2);
}
i_bezier_multi(im,len,x,y,val);
myfree(x);
myfree(y);
void
i_poly_aa(im,xc,yc,val)
Imager::ImgRaw im
Imager::Color val
PREINIT:
double *x,*y;
int len;
AV *av1;
AV *av2;
SV *sv1;
SV *sv2;
int i;
PPCODE:
ICL_info(val);
if (!SvROK(ST(1))) croak("Imager: Parameter 1 to i_poly_aa must be a reference to an array\n");
if (SvTYPE(SvRV(ST(1))) != SVt_PVAV) croak("Imager: Parameter 1 to i_poly_aa must be a reference to an array\n");
if (!SvROK(ST(2))) croak("Imager: Parameter 1 to i_poly_aa must be a reference to an array\n");
if (SvTYPE(SvRV(ST(2))) != SVt_PVAV) croak("Imager: Parameter 1 to i_poly_aa must be a reference to an array\n");
av1=(AV*)SvRV(ST(1));
av2=(AV*)SvRV(ST(2));
if (av_len(av1) != av_len(av2)) croak("Imager: x and y arrays to i_poly_aa must be equal length\n");
len=av_len(av1)+1;
x=mymalloc( len*sizeof(double) );
y=mymalloc( len*sizeof(double) );
for(i=0;i<len;i++) {
sv1=(*(av_fetch(av1,i,0)));
sv2=(*(av_fetch(av2,i,0)));
x[i]=(double)SvNV(sv1);
y[i]=(double)SvNV(sv2);
}
i_poly_aa(im,len,x,y,val);
myfree(x);
myfree(y);
void
i_flood_fill(im,seedx,seedy,dcol)
Imager::ImgRaw im
int seedx
int seedy
Imager::Color dcol
void
i_copyto(im,src,x1,y1,x2,y2,tx,ty)
Imager::ImgRaw im
Imager::ImgRaw src
int x1
int y1
int x2
int y2
int tx
int ty
void
i_copyto_trans(im,src,x1,y1,x2,y2,tx,ty,trans)
Imager::ImgRaw im
Imager::ImgRaw src
int x1
int y1
int x2
int y2
int tx
int ty
Imager::Color trans
void
i_copy(im,src)
Imager::ImgRaw im
Imager::ImgRaw src
undef_int
i_rubthru(im,src,tx,ty)
Imager::ImgRaw im
Imager::ImgRaw src
int tx
int ty
undef_int
i_flipxy(im, direction)
Imager::ImgRaw im
int direction
Imager::ImgRaw
i_rotate90(im, degrees)
Imager::ImgRaw im
int degrees
Imager::ImgRaw
i_rotate_exact(im, amount)
Imager::ImgRaw im
double amount
Imager::ImgRaw
i_matrix_transform(im, xsize, ysize, matrix)
Imager::ImgRaw im
int xsize
int ysize
PREINIT:
double matrix[9];
AV *av;
IV len;
SV *sv1;
int i;
CODE:
if (!SvROK(ST(3)) || SvTYPE(SvRV(ST(3))) != SVt_PVAV)
croak("i_matrix_transform: parameter 4 must be an array ref\n");
av=(AV*)SvRV(ST(3));
len=av_len(av)+1;
if (len > 9)
len = 9;
for (i = 0; i < len; ++i) {
sv1=(*(av_fetch(av,i,0)));
matrix[i] = SvNV(sv1);
}
for (; i < 9; ++i)
matrix[i] = 0;
RETVAL = i_matrix_transform(im, xsize, ysize, matrix);
OUTPUT:
RETVAL
void
i_gaussian(im,stdev)
Imager::ImgRaw im
float stdev
void
i_conv(im,pcoef)
Imager::ImgRaw im
PREINIT:
float* coeff;
int len;
AV* av;
SV* sv1;
int i;
PPCODE:
if (!SvROK(ST(1))) croak("Imager: Parameter 1 must be a reference to an array\n");
if (SvTYPE(SvRV(ST(1))) != SVt_PVAV) croak("Imager: Parameter 1 must be a reference to an array\n");
av=(AV*)SvRV(ST(1));
len=av_len(av)+1;
coeff=mymalloc( len*sizeof(float) );
for(i=0;i<len;i++) {
sv1=(*(av_fetch(av,i,0)));
coeff[i]=(float)SvNV(sv1);
}
i_conv(im,coeff,len);
myfree(coeff);
undef_int
i_convert(im, src, coeff)
Imager::ImgRaw im
Imager::ImgRaw src
PREINIT:
float *coeff;
int outchan;
int inchan;
AV *avmain;
SV **temp;
SV *svsub;
AV *avsub;
int len;
int i, j;
CODE:
if (!SvROK(ST(2)) || SvTYPE(SvRV(ST(2))) != SVt_PVAV)
croak("i_convert: parameter 3 must be an arrayref\n");
avmain = (AV*)SvRV(ST(2));
outchan = av_len(avmain)+1;
/* find the biggest */
inchan = 0;
for (j=0; j < outchan; ++j) {