sub make_func_list {
- my @funcs = qw(i_img i_color i_fcolor i_fill_t mm_log i_img_color_channels i_img_has_alpha i_img_dim i_DF i_DFc i_DFp i_DFcp i_psamp_bits i_gsamp_bits);
+ my @funcs = qw(i_img i_color i_fcolor i_fill_t mm_log i_img_color_channels i_img_has_alpha i_img_dim i_DF i_DFc i_DFp i_DFcp i_psamp_bits i_gsamp_bits i_psamp i_psampf);
open FUNCS, "< imexttypes.h"
or die "Cannot open imexttypes.h: $!\n";
my $in_struct;
const int *chans, int chan_count, int bits);
typedef i_img_dim (*i_f_psamp_bits_t)(i_img *im, i_img_dim x, i_img_dim r, i_img_dim y, unsigned const *samp,
const int *chans, int chan_count, int bits);
+typedef i_img_dim
+(*i_f_psamp_t)(i_img *im, i_img_dim x, i_img_dim r, i_img_dim y,
+ const i_sample_t *samp, const int *chan, int chan_count);
+typedef i_img_dim
+(*i_f_psampf_t)(i_img *im, i_img_dim x, i_img_dim r, i_img_dim y,
+ const i_fsample_t *samp, const int *chan, int chan_count);
/*
=item i_img
i_f_psamp_bits - implements i_psamp_bits() for this image.
+=item *
+
+i_f_psamp - implements psamp() for this image.
+
+=item *
+
+i_f_psampf - implements psamp() for this image.
+
=back
=cut
i_f_gsamp_bits_t i_f_gsamp_bits;
i_f_psamp_bits_t i_f_psamp_bits;
+ /* as of 0.88 */
+ i_f_psamp_t i_f_psamp;
+ i_f_psampf_t i_f_psampf;
+
void *im_data;
};
readers. Switching away from calling readcb etc to i_io_read() etc
should fix your code.
+ Version 4 added i_psamp() and i_psampf() pointers to the i_img
+ structure.
+
*/
-#define IMAGER_API_VERSION 3
+#define IMAGER_API_VERSION 4
/*
IMAGER_API_LEVEL is the level of the structure. New function pointers
int const *chans, int chan_count, int bits);
static i_img_dim i_psamp_bits_d16(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, unsigned const *samps,
int const *chans, int chan_count, int bits);
+static i_img_dim i_psamp_d16(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_sample_t *samps, const int *chans, int chan_count);
+static i_img_dim i_psampf_d16(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_fsample_t *samps, const int *chans, int chan_count);
/*
=item IIM_base_16bit_direct
i_gsamp_bits_d16,
i_psamp_bits_d16,
+
+ i_psamp_d16,
+ i_psampf_d16
};
/* it's possible some platforms won't have a 16-bit integer type,
}
}
+/*
+=item i_psamp_d16(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_sample_t *samps, int *chans, int chan_count)
+
+Writes sample values to im for the horizontal line (l, y) to (r-1,y)
+for the channels specified by chans, an array of int with chan_count
+elements.
+
+Returns the number of samples written (which should be (r-l) *
+bits_set(chan_mask)
+
+=cut
+*/
+
+static
+i_img_dim
+i_psamp_d16(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_sample_t *samps, const int *chans, int chan_count) {
+ int ch;
+ i_img_dim count, i, w;
+
+ if (y >=0 && y < im->ysize && l < im->xsize && l >= 0) {
+ int all_unmasked;
+ i_img_dim offset;
+ if (r > im->xsize)
+ r = im->xsize;
+ offset = (l+y*im->xsize) * im->channels;
+ w = r - l;
+ count = 0;
+
+ if (chans) {
+ /* make sure we have good channel numbers */
+ /* and test if all channels specified are in the mask */
+ int all_in_mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (chans[ch] < 0 || chans[ch] >= im->channels) {
+ i_push_errorf(0, "No channel %d in this image", chans[ch]);
+ return -1;
+ }
+ if (!((1 << chans[ch]) & im->ch_mask))
+ all_in_mask = 0;
+ }
+ if (all_in_mask) {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ STORE8as16(im->idata, offset + chans[ch], *samps);
+ ++samps;
+ ++count;
+ }
+ offset += im->channels;
+ }
+ }
+ else {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & (1 << (chans[ch])))
+ STORE8as16(im->idata, offset + chans[ch], *samps);
+ ++samps;
+ ++count;
+ }
+ offset += im->channels;
+ }
+ }
+ }
+ else {
+ if (chan_count <= 0 || chan_count > im->channels) {
+ i_push_errorf(0, "chan_count %d out of range, must be >0, <= channels",
+ chan_count);
+ return -1;
+ }
+ for (i = 0; i < w; ++i) {
+ unsigned mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & mask)
+ STORE8as16(im->idata, offset + ch, *samps);
+ ++samps;
+ ++count;
+ mask <<= 1;
+ }
+ offset += im->channels;
+ }
+ }
+
+ return count;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
+/*
+=item i_psampf_d16(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_fsample_t *samps, int *chans, int chan_count)
+
+Writes sample values to im for the horizontal line (l, y) to (r-1,y)
+for the channels specified by chans, an array of int with chan_count
+elements.
+
+Returns the number of samples written (which should be (r-l) *
+bits_set(chan_mask)
+
+=cut
+*/
+
+static
+i_img_dim
+i_psampf_d16(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_fsample_t *samps, const int *chans, int chan_count) {
+ int ch;
+ i_img_dim count, i, w;
+
+ if (y >=0 && y < im->ysize && l < im->xsize && l >= 0) {
+ int all_unmasked;
+ i_img_dim offset;
+ if (r > im->xsize)
+ r = im->xsize;
+ offset = (l+y*im->xsize) * im->channels;
+ w = r - l;
+ count = 0;
+
+ if (chans) {
+ /* make sure we have good channel numbers */
+ /* and test if all channels specified are in the mask */
+ int all_in_mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (chans[ch] < 0 || chans[ch] >= im->channels) {
+ i_push_errorf(0, "No channel %d in this image", chans[ch]);
+ return -1;
+ }
+ if (!((1 << chans[ch]) & im->ch_mask))
+ all_in_mask = 0;
+ }
+ if (all_in_mask) {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ unsigned samp16 = SampleFTo16(*samps);
+ STORE16(im->idata, offset + chans[ch], samp16);
+ ++samps;
+ ++count;
+ }
+ offset += im->channels;
+ }
+ }
+ else {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & (1 << (chans[ch]))) {
+ unsigned samp16 = SampleFTo16(*samps);
+ STORE16(im->idata, offset + chans[ch], samp16);
+ }
+ ++samps;
+ ++count;
+ }
+ offset += im->channels;
+ }
+ }
+ }
+ else {
+ if (chan_count <= 0 || chan_count > im->channels) {
+ i_push_errorf(0, "chan_count %d out of range, must be >0, <= channels",
+ chan_count);
+ return -1;
+ }
+ for (i = 0; i < w; ++i) {
+ unsigned mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & mask) {
+ unsigned samp16 = SampleFTo16(*samps);
+ STORE16(im->idata, offset + ch, samp16);
+ }
+ ++samps;
+ ++count;
+ mask <<= 1;
+ }
+ offset += im->channels;
+ }
+ }
+
+ return count;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
/*
=back
static i_img_dim i_plinf_d(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_fcolor *vals);
static i_img_dim i_gsamp_d(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, i_sample_t *samps, const int *chans, int chan_count);
static i_img_dim i_gsampf_d(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, i_fsample_t *samps, const int *chans, int chan_count);
+static i_img_dim i_psamp_d(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_sample_t *samps, const int *chans, int chan_count);
+static i_img_dim i_psampf_d(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_fsample_t *samps, const int *chans, int chan_count);
/*
=item IIM_base_8bit_direct (static)
i_gsamp_bits_fb,
NULL, /* i_f_psamp_bits */
+
+ i_psamp_d,
+ i_psampf_d
};
/*static void set_8bit_direct(i_img *im) {
}
}
+/*
+=item i_psamp_d(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, i_sample_t *samps, int *chans, int chan_count)
+
+Writes sample values to im for the horizontal line (l, y) to (r-1,y)
+for the channels specified by chans, an array of int with chan_count
+elements.
+
+Returns the number of samples written (which should be (r-l) *
+bits_set(chan_mask)
+
+=cut
+*/
+
+static
+i_img_dim
+i_psamp_d(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_sample_t *samps, const int *chans, int chan_count) {
+ int ch;
+ i_img_dim count, i, w;
+ unsigned char *data;
+
+ if (y >=0 && y < im->ysize && l < im->xsize && l >= 0) {
+ int all_unmasked;
+ if (r > im->xsize)
+ r = im->xsize;
+ data = im->idata + (l+y*im->xsize) * im->channels;
+ w = r - l;
+ count = 0;
+
+ if (chans) {
+ /* make sure we have good channel numbers */
+ /* and test if all channels specified are in the mask */
+ int all_in_mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (chans[ch] < 0 || chans[ch] >= im->channels) {
+ i_push_errorf(0, "No channel %d in this image", chans[ch]);
+ return -1;
+ }
+ if (!((1 << chans[ch]) & im->ch_mask))
+ all_in_mask = 0;
+ }
+ if (all_in_mask) {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ data[chans[ch]] = *samps++;
+ ++count;
+ }
+ data += im->channels;
+ }
+ }
+ else {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & (1 << (chans[ch])))
+ data[chans[ch]] = *samps;
+ ++samps;
+ ++count;
+ }
+ data += im->channels;
+ }
+ }
+ }
+ else {
+ if (chan_count <= 0 || chan_count > im->channels) {
+ i_push_errorf(0, "chan_count %d out of range, must be >0, <= channels",
+ chan_count);
+ return -1;
+ }
+ for (i = 0; i < w; ++i) {
+ unsigned mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & mask)
+ data[ch] = *samps;
+ ++samps;
+ ++count;
+ mask <<= 1;
+ }
+ data += im->channels;
+ }
+ }
+
+ return count;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
+/*
+=item i_psampf_d(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_fsample_t *samps, int *chans, int chan_count)
+
+Writes sample values to im for the horizontal line (l, y) to (r-1,y)
+for the channels specified by chans, an array of int with chan_count
+elements.
+
+Returns the number of samples written (which should be (r-l) *
+bits_set(chan_mask)
+
+=cut
+*/
+
+static
+i_img_dim
+i_psampf_d(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_fsample_t *samps, const int *chans, int chan_count) {
+ int ch;
+ i_img_dim count, i, w;
+ unsigned char *data;
+
+ if (y >=0 && y < im->ysize && l < im->xsize && l >= 0) {
+ int all_unmasked;
+ if (r > im->xsize)
+ r = im->xsize;
+ data = im->idata + (l+y*im->xsize) * im->channels;
+ w = r - l;
+ count = 0;
+
+ if (chans) {
+ /* make sure we have good channel numbers */
+ /* and test if all channels specified are in the mask */
+ int all_in_mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (chans[ch] < 0 || chans[ch] >= im->channels) {
+ i_push_errorf(0, "No channel %d in this image", chans[ch]);
+ return -1;
+ }
+ if (!((1 << chans[ch]) & im->ch_mask))
+ all_in_mask = 0;
+ }
+ if (all_in_mask) {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ data[chans[ch]] = SampleFTo8(*samps);
+ ++samps;
+ ++count;
+ }
+ data += im->channels;
+ }
+ }
+ else {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & (1 << (chans[ch])))
+ data[chans[ch]] = SampleFTo8(*samps);
+ ++samps;
+ ++count;
+ }
+ data += im->channels;
+ }
+ }
+ }
+ else {
+ if (chan_count <= 0 || chan_count > im->channels) {
+ i_push_errorf(0, "chan_count %d out of range, must be >0, <= channels",
+ chan_count);
+ return -1;
+ }
+ for (i = 0; i < w; ++i) {
+ unsigned mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & mask)
+ data[ch] = SampleFTo8(*samps);
+ ++samps;
+ ++count;
+ mask <<= 1;
+ }
+ data += im->channels;
+ }
+ }
+
+ return count;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
/*
=back
int const *chans, int chan_count);
static i_img_dim i_gsampf_ddoub(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, i_fsample_t *samps,
int const *chans, int chan_count);
+static i_img_dim
+i_psamp_ddoub(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_sample_t *samps, const int *chans, int chan_count);
+static i_img_dim
+i_psampf_ddoub(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_fsample_t *samps, const int *chans, int chan_count);
/*
=item IIM_base_16bit_direct
i_gsamp_bits_fb,
NULL, /* i_f_psamp_bits */
+
+ i_psamp_ddoub, /* i_f_psamp */
+ i_psampf_ddoub /* i_f_psampf */
};
/*
}
}
+/*
+=item i_psamp_ddoub(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_sample_t *samps, int *chans, int chan_count)
+
+Writes sample values to im for the horizontal line (l, y) to (r-1,y)
+for the channels specified by chans, an array of int with chan_count
+elements.
+
+Returns the number of samples written (which should be (r-l) *
+bits_set(chan_mask)
+
+=cut
+*/
+
+static
+i_img_dim
+i_psamp_ddoub(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_sample_t *samps, const int *chans, int chan_count) {
+ int ch;
+ i_img_dim count, i, w;
+
+ if (y >=0 && y < im->ysize && l < im->xsize && l >= 0) {
+ int all_unmasked;
+ i_img_dim offset;
+ if (r > im->xsize)
+ r = im->xsize;
+ offset = (l+y*im->xsize) * im->channels;
+ w = r - l;
+ count = 0;
+
+ if (chans) {
+ /* make sure we have good channel numbers */
+ /* and test if all channels specified are in the mask */
+ int all_in_mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (chans[ch] < 0 || chans[ch] >= im->channels) {
+ i_push_errorf(0, "No channel %d in this image", chans[ch]);
+ return -1;
+ }
+ if (!((1 << chans[ch]) & im->ch_mask))
+ all_in_mask = 0;
+ }
+ if (all_in_mask) {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ ((double*)im->idata)[offset + chans[ch]] = Sample8ToF(*samps);
+ ++samps;
+ ++count;
+ }
+ offset += im->channels;
+ }
+ }
+ else {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & (1 << (chans[ch])))
+ ((double*)im->idata)[offset + chans[ch]] = Sample8ToF(*samps);
+
+ ++samps;
+ ++count;
+ }
+ offset += im->channels;
+ }
+ }
+ }
+ else {
+ if (chan_count <= 0 || chan_count > im->channels) {
+ i_push_errorf(0, "chan_count %d out of range, must be >0, <= channels",
+ chan_count);
+ return -1;
+ }
+ for (i = 0; i < w; ++i) {
+ unsigned mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & mask)
+ ((double*)im->idata)[offset + ch] = Sample8ToF(*samps);
+
+ ++samps;
+ ++count;
+ mask <<= 1;
+ }
+ offset += im->channels;
+ }
+ }
+
+ return count;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
+/*
+=item i_psampf_ddoub(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_fsample_t *samps, int *chans, int chan_count)
+
+Writes sample values to im for the horizontal line (l, y) to (r-1,y)
+for the channels specified by chans, an array of int with chan_count
+elements.
+
+Returns the number of samples written (which should be (r-l) *
+bits_set(chan_mask)
+
+=cut
+*/
+
+static
+i_img_dim
+i_psampf_ddoub(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_fsample_t *samps, const int *chans, int chan_count) {
+ int ch;
+ i_img_dim count, i, w;
+
+ if (y >=0 && y < im->ysize && l < im->xsize && l >= 0) {
+ int all_unmasked;
+ i_img_dim offset;
+ if (r > im->xsize)
+ r = im->xsize;
+ offset = (l+y*im->xsize) * im->channels;
+ w = r - l;
+ count = 0;
+
+ if (chans) {
+ /* make sure we have good channel numbers */
+ /* and test if all channels specified are in the mask */
+ int all_in_mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (chans[ch] < 0 || chans[ch] >= im->channels) {
+ i_push_errorf(0, "No channel %d in this image", chans[ch]);
+ return -1;
+ }
+ if (!((1 << chans[ch]) & im->ch_mask))
+ all_in_mask = 0;
+ }
+ if (all_in_mask) {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ ((double*)im->idata)[offset + chans[ch]] = *samps;
+ ++samps;
+ ++count;
+ }
+ offset += im->channels;
+ }
+ }
+ else {
+ for (i = 0; i < w; ++i) {
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & (1 << (chans[ch])))
+ ((double*)im->idata)[offset + chans[ch]] = *samps;
+
+ ++samps;
+ ++count;
+ }
+ offset += im->channels;
+ }
+ }
+ }
+ else {
+ if (chan_count <= 0 || chan_count > im->channels) {
+ i_push_errorf(0, "chan_count %d out of range, must be >0, <= channels",
+ chan_count);
+ return -1;
+ }
+ for (i = 0; i < w; ++i) {
+ unsigned mask = 1;
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (im->ch_mask & mask)
+ ((double*)im->idata)[offset + ch] = *samps;
+
+ ++samps;
+ ++count;
+ mask <<= 1;
+ }
+ offset += im->channels;
+ }
+ }
+
+ return count;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
/*
=item i_img_to_drgb(im)
#define i_img_color_channels(im) (i_img_has_alpha(im) ? (im)->channels - 1 : (im)->channels)
+/*
+=item i_psamp(im, left, right, y, samples, channels, channel_count)
+=category Drawing
+
+Writes sample values from C<samples> to C<im> for the horizontal line
+(left, y) to (right-1, y) inclusive for the channels specified by
+C<channels>, an array of C<int> with C<channel_count> elements.
+
+If C<channels> is C<NULL> then the first C<channels_count> channels
+are written to for each pixel.
+
+Returns the number of samples written, which should be (right - left)
+* channel_count. If a channel not in the image is in channels, left
+is negative, left is outside the image or y is outside the image,
+returns -1 and pushes an error.
+
+=cut
+*/
+
+#define i_psamp(im, l, r, y, samps, chans, count) \
+ (((im)->i_f_psamp)((im), (l), (r), (y), (samps), (chans), (count)))
+
+/*
+=item i_psampf(im, left, right, y, samples, channels, channel_count)
+=category Drawing
+
+Writes floating point sample values from C<samples> to C<im> for the
+horizontal line (left, y) to (right-1, y) inclusive for the channels
+specified by C<channels>, an array of C<int> with C<channel_count>
+elements.
+
+If C<channels> is C<NULL> then the first C<channels_count> channels
+are written to for each pixel.
+
+Returns the number of samples written, which should be (right - left)
+* channel_count. If a channel not in the image is in channels, left
+is negative, left is outside the image or y is outside the image,
+returns -1 and pushes an error.
+
+=cut
+*/
+
+#define i_psampf(im, l, r, y, samps, chans, count) \
+ (((im)->i_f_psampf)((im), (l), (r), (y), (samps), (chans), (count)))
+
#endif
i_f_psamp_bits - implements i_psamp_bits() for this image.
+=item *
+
+i_f_psamp - implements psamp() for this image.
+
+=item *
+
+i_f_psampf - implements psamp() for this image.
+
=back
=for comment
From: File imext.c
+=item i_psamp(im, left, right, y, samples, channels, channel_count)
+
+Writes sample values from C<samples> to C<im> for the horizontal line
+(left, y) to (right-1, y) inclusive for the channels specified by
+C<channels>, an array of C<int> with C<channel_count> elements.
+
+If C<channels> is C<NULL> then the first C<channels_count> channels
+are written to for each pixel.
+
+Returns the number of samples written, which should be (right - left)
+* channel_count. If a channel not in the image is in channels, left
+is negative, left is outside the image or y is outside the image,
+returns -1 and pushes an error.
+
+
+=for comment
+From: File immacros.h
+
=item i_psamp_bits(im, left, right, y, samples, channels, channel_count, bits)
Writes integer samples scaled to C<bits> bits of precision from the
=for comment
From: File imext.c
+=item i_psampf(im, left, right, y, samples, channels, channel_count)
+
+Writes floating point sample values from C<samples> to C<im> for the
+horizontal line (left, y) to (right-1, y) inclusive for the channels
+specified by C<channels>, an array of C<int> with C<channel_count>
+elements.
+
+If C<channels> is C<NULL> then the first C<channels_count> channels
+are written to for each pixel.
+
+Returns the number of samples written, which should be (right - left)
+* channel_count. If a channel not in the image is in channels, left
+is negative, left is outside the image or y is outside the image,
+returns -1 and pushes an error.
+
+
+=for comment
+From: File immacros.h
+
=back
int const *chans, int chan_count);
static i_img_dim i_gpal_masked(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, i_palidx *vals);
static i_img_dim i_ppal_masked(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_palidx *vals);
+static i_img_dim
+psamp_masked(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_sample_t *samples, const int *chans, int chan_count);
+static i_img_dim
+psampf_masked(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_fsample_t *samples, const int *chans, int chan_count);
/*
=item IIM_base_masked
i_setcolors_forward, /* i_f_setcolors */
i_destroy_masked, /* i_f_destroy */
+
+ NULL, /* i_f_gsamp_bits */
+ NULL, /* i_f_psamp_bits */
+
+ psamp_masked, /* i_f_psamp */
+ psampf_masked /* i_f_psampf */
};
/*
}
}
+/*
+=item psamp_masked()
+
+i_psamp() implementation for masked images.
+
+=cut
+*/
+
+static i_img_dim
+psamp_masked(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_sample_t *samples, const int *chans, int chan_count) {
+ i_img_mask_ext *ext = MASKEXT(im);
+
+ if (y >= 0 && y < im->ysize && l < im->xsize && l >= 0) {
+ unsigned old_ch_mask = ext->targ->ch_mask;
+ i_img_dim result = 0;
+ ext->targ->ch_mask = im->ch_mask;
+ if (r > im->xsize)
+ r = im->xsize;
+ if (ext->mask) {
+ i_img_dim w = r - l;
+ i_img_dim i = 0;
+ i_img_dim x = ext->xbase + l;
+ i_img_dim work_y = y + ext->ybase;
+ i_sample_t *mask_samps = ext->samps;
+
+ i_gsamp(ext->mask, l, r, y, mask_samps, NULL, 1);
+ /* not optimizing this yet */
+ while (i < w) {
+ if (mask_samps[i]) {
+ /* found a set mask value, try to do a run */
+ i_img_dim run_left = x;
+ const i_sample_t *run_samps = samples;
+ ++i;
+ ++x;
+ samples += chan_count;
+
+ while (i < w && mask_samps[i]) {
+ ++i;
+ ++x;
+ samples += chan_count;
+ }
+ result += i_psamp(ext->targ, run_left, x, work_y, run_samps, chans, chan_count);
+ }
+ else {
+ ++i;
+ ++x;
+ samples += chan_count;
+ result += chan_count; /* pretend we wrote masked off pixels */
+ }
+ }
+ }
+ else {
+ result = i_psamp(ext->targ, l + ext->xbase, r + ext->xbase,
+ y + ext->ybase, samples, chans, chan_count);
+ im->type = ext->targ->type;
+ }
+ ext->targ->ch_mask = old_ch_mask;
+ return result;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
+/*
+=item psampf_masked()
+
+i_psampf() implementation for masked images.
+
+=cut
+*/
+
+static i_img_dim
+psampf_masked(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_fsample_t *samples, const int *chans, int chan_count) {
+ i_img_mask_ext *ext = MASKEXT(im);
+
+ if (y >= 0 && y < im->ysize && l < im->xsize && l >= 0) {
+ i_img_dim result = 0;
+ unsigned old_ch_mask = ext->targ->ch_mask;
+ ext->targ->ch_mask = im->ch_mask;
+ if (r > im->xsize)
+ r = im->xsize;
+ if (ext->mask) {
+ i_img_dim w = r - l;
+ i_img_dim i = 0;
+ i_img_dim x = ext->xbase + l;
+ i_img_dim work_y = y + ext->ybase;
+ i_sample_t *mask_samps = ext->samps;
+
+ i_gsamp(ext->mask, l, r, y, mask_samps, NULL, 1);
+ /* not optimizing this yet */
+ while (i < w) {
+ if (mask_samps[i]) {
+ /* found a set mask value, try to do a run */
+ i_img_dim run_left = x;
+ const i_fsample_t *run_samps = samples;
+ ++i;
+ ++x;
+ samples += chan_count;
+
+ while (i < w && mask_samps[i]) {
+ ++i;
+ ++x;
+ samples += chan_count;
+ }
+ result += i_psampf(ext->targ, run_left, x, work_y, run_samps, chans, chan_count);
+ }
+ else {
+ ++i;
+ ++x;
+ samples += chan_count;
+ result += chan_count; /* pretend we wrote masked off pixels */
+ }
+ }
+ }
+ else {
+ result = i_psampf(ext->targ, l + ext->xbase, r + ext->xbase,
+ y + ext->ybase, samples,
+ chans, chan_count);
+ im->type = ext->targ->type;
+ }
+ ext->targ->ch_mask = old_ch_mask;
+ return result;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
/*
=back
static int i_setcolors_p(i_img *im, int index, const i_color *color, int count);
static void i_destroy_p(i_img *im);
+static i_img_dim
+i_psamp_p(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_sample_t *samps, const int *chans, int chan_count);
+static i_img_dim
+i_psampf_p(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y, const i_fsample_t *samps, const int *chans, int chan_count);
static i_img IIM_base_8bit_pal =
{
i_gsamp_bits_fb,
NULL, /* i_f_psamp_bits */
+
+ i_psamp_p,
+ i_psampf_p
};
/*
*/
static int
i_ppix_p(i_img *im, i_img_dim x, i_img_dim y, const i_color *val) {
+ const i_color *work_val = val;
+ i_color workc;
i_palidx which;
+ const unsigned all_mask = ( 1 << im->channels ) - 1;
+
if (x < 0 || x >= im->xsize || y < 0 || y >= im->ysize)
return -1;
- if (i_findcolor(im, val, &which)) {
+
+ if ((im->ch_mask & all_mask) != all_mask) {
+ unsigned mask = 1;
+ int ch;
+ i_gpix(im, x, y, &workc);
+ for (ch = 0; ch < im->channels; ++ch) {
+ if (im->ch_mask & mask)
+ workc.channel[ch] = val->channel[ch];
+ mask <<= 1;
+ }
+ work_val = &workc;
+ }
+
+ if (i_findcolor(im, work_val, &which)) {
((i_palidx *)im->idata)[x + y * im->xsize] = which;
return 0;
}
else {
+ mm_log((1, "i_ppix: color(%d,%d,%d) not found, converting to rgb\n",
+ val->channel[0], val->channel[1], val->channel[2]));
if (i_img_to_rgb_inplace(im)) {
return i_ppix(im, x, y, val);
}
return 0;
}
+/*
+=item i_psamp_p(im, l, r, y, samps, chans, chan_count)
+
+Implement psamp() for paletted images.
+
+Since writing samples doesn't really work as a concept for paletted
+images, this is slow.
+
+Also, writing samples may convert the image to a direct image in the
+process, so use i_ppix/i_gpix instead of directly calling the paletted
+handlers.
+
+=cut
+*/
+
+static i_img_dim
+i_psamp_p(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_sample_t *samps, const int *chans, int chan_count) {
+ if (y >=0 && y < im->ysize && l < im->xsize && l >= 0) {
+ i_img_dim count = 0;
+ int ch;
+
+ if (r > im->xsize)
+ r = im->xsize;
+
+ if (chans) {
+ /* make sure we have good channel numbers */
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (chans[ch] < 0 || chans[ch] >= im->channels) {
+ i_push_errorf(0, "No channel %d in this image", chans[ch]);
+ return -1;
+ }
+ }
+ while (l < r) {
+ i_color c;
+
+ i_gpix(im, l, y, &c);
+ for (ch = 0; ch < chan_count; ++ch)
+ c.channel[chans[ch]] = *samps++;
+ i_ppix(im, l, y, &c);
+ count += chan_count;
+ ++l;
+ }
+ }
+ else {
+ if (chan_count <= 0 || chan_count > im->channels) {
+ i_push_errorf(0, "chan_count %d out of range, must be >0, <= channels",
+ chan_count);
+ return -1;
+ }
+
+ while (l < r) {
+ i_color c;
+
+ i_gpix(im, l, y, &c);
+ for (ch = 0; ch < chan_count; ++ch)
+ c.channel[ch] = *samps++;
+ i_ppix(im, l, y, &c);
+ count += chan_count;
+ ++l;
+ }
+ }
+
+ return count;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
+/*
+=item i_psampf_p(im, l, r, y, samps, chans, chan_count)
+
+Implement psampf() for paletted images.
+
+Since writing samples doesn't really work as a concept for paletted
+images, this is slow.
+
+Also, writing samples may convert the image to a direct image in the
+process, so use i_ppixf/i_gpixf instead of directly calling the paletted
+handlers.
+
+=cut
+*/
+
+static i_img_dim
+i_psampf_p(i_img *im, i_img_dim l, i_img_dim r, i_img_dim y,
+ const i_fsample_t *samps, const int *chans, int chan_count) {
+ if (y >=0 && y < im->ysize && l < im->xsize && l >= 0) {
+ i_img_dim count = 0;
+ int ch;
+
+ if (r > im->xsize)
+ r = im->xsize;
+
+ if (chans) {
+ /* make sure we have good channel numbers */
+ for (ch = 0; ch < chan_count; ++ch) {
+ if (chans[ch] < 0 || chans[ch] >= im->channels) {
+ i_push_errorf(0, "No channel %d in this image", chans[ch]);
+ return -1;
+ }
+ }
+ while (l < r) {
+ i_fcolor c;
+
+ i_gpixf(im, l, y, &c);
+ for (ch = 0; ch < chan_count; ++ch)
+ c.channel[chans[ch]] = *samps++;
+ i_ppixf(im, l, y, &c);
+ count += chan_count;
+ ++l;
+ }
+ }
+ else {
+ if (chan_count <= 0 || chan_count > im->channels) {
+ i_push_errorf(0, "chan_count %d out of range, must be >0, <= channels",
+ chan_count);
+ return -1;
+ }
+
+ while (l < r) {
+ i_fcolor c;
+
+ i_gpixf(im, l, y, &c);
+ for (ch = 0; ch < chan_count; ++ch)
+ c.channel[ch] = *samps++;
+ i_ppixf(im, l, y, &c);
+ count += chan_count;
+ ++l;
+ }
+ }
+
+ return count;
+ }
+ else {
+ i_push_error(0, "Image position outside of image");
+ return -1;
+ }
+}
+
/*
=back
projects / imager.git / commitdiff