size_t
i_tt_glyph_name(TT_Fonthandle *handle, unsigned long ch, char *name_buf,
size_t name_buf_size) {
#ifdef FTXPOST
TT_Error rc;
TT_String *psname;
TT_UShort index;
i_clear_error();
if (!handle->loaded_names) {
TT_Post post;
mm_log((1, "Loading PS Names"));
handle->load_cond = TT_Load_PS_Names(handle->face, &post);
++handle->loaded_names;
}
if (handle->load_cond) {
i_push_errorf(handle->load_cond, "error loading names (%#x)",
(unsigned)handle->load_cond);
return 0;
}
index = TT_Char_Index(handle->char_map, ch);
if (!index) {
i_push_error(0, "no such character");
return 0;
}
rc = TT_Get_PS_Name(handle->face, index, &psname);
if (rc) {
i_push_error(rc, "error getting name");
return 0;
}
strncpy(name_buf, psname, name_buf_size);
name_buf[name_buf_size-1] = '\0';
return strlen(psname) + 1;
#else
mm_log((1, "FTXPOST extension not enabled\n"));
i_clear_error();
i_push_error(0, "Use of FTXPOST extension disabled");
return 0;
#endif
}
static undef_int
i_init_t1_low(int t1log) {
int init_flags = IGNORE_CONFIGFILE|IGNORE_FONTDATABASE;
mm_log((1,"init_t1(%d)\n", t1log));
i_clear_error();
if (t1_active_fonts) {
mm_log((1, "Cannot re-initialize T1 - active fonts\n"));
i_push_error(0, "Cannot re-initialize T1 - active fonts");
return 1;
}
if (t1_initialized) {
T1_CloseLib();
t1_initialized = 0;
}
if (t1log)
init_flags |= LOGFILE;
if ((T1_InitLib(init_flags) == NULL)){
mm_log((1,"Initialization of t1lib failed\n"));
i_push_error(0, "T1_InitLib failed");
return(1);
}
T1_SetLogLevel(T1LOG_DEBUG);
++t1_initialized;
return(0);
}
static i_tt_engine *
i_init_tt(void) {
TT_Error error;
im_context_t ctx = im_get_context();
TT_Byte palette[] = { 0, 64, 127, 191, 255 };
i_tt_engine *result = im_context_slot_get(ctx, slot);
i_clear_error();
if (result == NULL) {
result = mymalloc(sizeof(i_tt_engine));
memset(result, 0, sizeof(*result));
im_context_slot_set(ctx, slot, result);
mm_log((1, "allocated FT1 state %p\n", result));
}
mm_log((1,"init_tt()\n"));
if (result->initialized)
return result;
error = TT_Init_FreeType( &result->engine );
if ( error ){
mm_log((1,"Initialization of freetype failed, code = 0x%x\n",
(unsigned)error));
i_tt_push_error(error);
i_push_error(0, "Could not initialize freetype 1.x");
return NULL;
}
#ifdef FTXPOST
error = TT_Init_Post_Extension( result->engine );
if (error) {
mm_log((1, "Initialization of Post extension failed = 0x%x\n",
(unsigned)error));
i_tt_push_error(error);
i_push_error(0, "Could not initialize FT 1.x POST extension");
return NULL;
}
#endif
error = TT_Set_Raster_Gray_Palette(result->engine, palette);
if (error) {
mm_log((1, "Initialization of gray levels failed = 0x%x\n",
(unsigned)error));
i_tt_push_error(error);
i_push_error(0, "Could not initialize FT 1.x POST extension");
return NULL;
}
mm_log((1, "initialized FT1 state %p\n", result));
result->initialized = 1;
return result;
}
int
i_t1_has_chars(i_t1_font_t font, const char *text, size_t len, int utf8,
char *out) {
int count = 0;
int font_num = font->font_id;
i_mutex_lock(mutex);
mm_log((1, "i_t1_has_chars(font_num %d, text %p, len %u, utf8 %d)\n",
font_num, text, (unsigned)len, utf8));
i_clear_error();
if (T1_LoadFont(font_num)) {
t1_push_error();
i_mutex_unlock(mutex);
return 0;
}
while (len) {
unsigned long c;
if (utf8) {
c = i_utf8_advance(&text, &len);
if (c == ~0UL) {
i_push_error(0, "invalid UTF8 character");
i_mutex_unlock(mutex);
return 0;
}
}
else {
c = (unsigned char)*text++;
--len;
}
if (c >= 0x100) {
/* limit of 256 characters for T1 */
*out++ = 0;
}
else {
char const * name = T1_GetCharName(font_num, (unsigned char)c);
if (name) {
*out++ = strcmp(name, ".notdef") != 0;
}
else {
mm_log((2, " No name found for character %lx\n", c));
*out++ = 0;
}
}
++count;
}
i_mutex_unlock(mutex);
return count;
}
unsigned long
imss_x11_open(char const *display_name) {
XErrorHandler old_handler;
Display *display;
i_clear_error();
old_handler = XSetErrorHandler(my_handler);
display = XOpenDisplay(display_name);
if (!display)
i_push_errorf(0, "Cannot connect to X server %s", XDisplayName(display_name));
XSetErrorHandler(old_handler);
return (unsigned long)display;
}
i_img* i_transform2(i_img_dim width, i_img_dim height, int channels,
struct rm_op *ops, int ops_count,
double *n_regs, int n_regs_count,
i_color *c_regs, int c_regs_count,
i_img **in_imgs, int in_imgs_count)
{
i_img *new_img;
i_img_dim x, y;
i_color val;
int i;
int need_images;
i_clear_error();
/* since the number of images is variable and the image numbers
for getp? are fixed, we can check them here instead of in the
register machine - this will help performance */
need_images = 0;
for (i = 0; i < ops_count; ++i) {
switch (ops[i].code) {
case rbc_getp1:
case rbc_getp2:
case rbc_getp3:
if (ops[i].code - rbc_getp1 + 1 > need_images) {
need_images = ops[i].code - rbc_getp1 + 1;
}
}
}
if (need_images > in_imgs_count) {
i_push_errorf(0, "not enough images, code requires %d, %d supplied",
need_images, in_imgs_count);
return NULL;
}
new_img = i_img_empty_ch(NULL, width, height, channels);
for (x = 0; x < width; ++x) {
for (y = 0; y < height; ++y) {
n_regs[0] = x;
n_regs[1] = y;
val = i_rm_run(ops, ops_count, n_regs, n_regs_count, c_regs, c_regs_count,
in_imgs, in_imgs_count);
i_ppix(new_img, x, y, &val);
}
}
return new_img;
}
i_t1_font_t
i_t1_new(char *pfb,char *afm) {
int font_id;
i_t1_font_t font;
i_mutex_lock(mutex);
i_clear_error();
if (!t1_initialized && i_init_t1_low(0)) {
i_mutex_unlock(mutex);
return NULL;
}
mm_log((1,"i_t1_new(pfb %s,afm %s)\n",pfb,(afm?afm:"NULL")));
font_id = T1_AddFont(pfb);
if (font_id<0) {
mm_log((1,"i_t1_new: Failed to load pfb file '%s' - return code %d.\n",pfb,font_id));
t1_push_error();
i_mutex_unlock(mutex);
return NULL;
}
if (afm != NULL) {
mm_log((1,"i_t1_new: requesting afm file '%s'.\n",afm));
if (T1_SetAfmFileName(font_id,afm)<0) mm_log((1,"i_t1_new: afm loading of '%s' failed.\n",afm));
}
if (T1_LoadFont(font_id)) {
mm_log((1, "i_t1_new() -> -1 - T1_LoadFont failed (%d)\n", T1_errno));
t1_push_error();
i_push_error(0, "loading font");
T1_DeleteFont(font_id);
i_mutex_unlock(mutex);
return NULL;
}
++t1_active_fonts;
i_mutex_unlock(mutex);
font = mymalloc(sizeof(*font));
font->font_id = font_id;
mm_log((1, "i_t1_new() -> %p (%d)\n", font, font_id));
return font;
}
undef_int
i_tt_bbox( TT_Fonthandle *handle, double points,const char *txt,size_t len,i_img_dim cords[6], int utf8) {
int inst;
i_clear_error();
mm_log((1,"i_tt_box(handle %p,points %f,txt '%.*s', len %ld, utf8 %d)\n",
handle, points, (int)len, txt, (long)len, utf8));
if ( (inst=i_tt_get_instance(handle,points,-1)) < 0) {
i_push_errorf(0, "i_tt_get_instance(%g)", points);
mm_log((1,"i_tt_text: get instance failed\n"));
return 0;
}
return i_tt_bbox_inst(handle, inst, txt, len, cords, utf8);
}
undef_int
i_tt_text( TT_Fonthandle *handle, i_img *im, i_img_dim xb, i_img_dim yb, const i_color *cl, double points, char const* txt, size_t len, int smooth, int utf8, int align) {
i_img_dim cords[BOUNDING_BOX_COUNT];
i_img_dim ascent, st_offset, y;
TT_Raster_Map bit;
i_clear_error();
if (! i_tt_rasterize( handle, &bit, cords, points, txt, len, smooth, utf8 ) ) return 0;
ascent=cords[BBOX_ASCENT];
st_offset=cords[BBOX_NEG_WIDTH];
y = align ? yb-ascent : yb;
i_tt_dump_raster_map2( im, &bit, xb+st_offset, y, cl, smooth );
i_tt_done_raster_map( &bit );
return 1;
}
int
i_t1_glyph_name(i_t1_font_t font, unsigned long ch, char *name_buf,
size_t name_buf_size) {
char *name;
int font_num = font->font_id;
i_clear_error();
if (ch > 0xFF) {
return 0;
}
i_mutex_lock(mutex);
if (T1_LoadFont(font_num)) {
t1_push_error();
i_mutex_unlock(mutex);
return 0;
}
name = T1_GetCharName(font_num, (unsigned char)ch);
if (name) {
if (strcmp(name, ".notdef")) {
size_t len = strlen(name);
strncpy(name_buf, name, name_buf_size);
name_buf[name_buf_size-1] = '\0';
i_mutex_unlock(mutex);
return len + 1;
}
else {
i_mutex_unlock(mutex);
return 0;
}
}
else {
t1_push_error();
i_mutex_unlock(mutex);
return 0;
}
}
static void
mathom_i_clear_error(void) {
i_clear_error();
}
i_img *
imss_darwin(i_img_dim left, i_img_dim top, i_img_dim right, i_img_dim bottom) {
CGDisplayCount count;
CGDisplayErr err;
CGRect rect;
CGLPixelFormatObj pix;
GLint npix;
CGLContextObj ctx;
i_img *im;
CGDirectDisplayID disp;
i_img_dim screen_width, screen_height;
i_img_dim width, height;
CGLPixelFormatAttribute pix_attrs[] =
{
kCGLPFADisplayMask, 0, /* filled in later */
kCGLPFAColorSize, 24,
kCGLPFAAlphaSize, 0,
kCGLPFAFullScreen,
0
};
i_clear_error();
disp = CGMainDisplayID();
if (!disp) {
i_push_error(0, "No main display");
return NULL;
}
/* for now, only interested in the first display */
rect = CGDisplayBounds(disp);
screen_width = rect.size.width;
screen_height = rect.size.height;
/* adjust negative/zero values to window size */
if (left < 0)
left += screen_width;
if (top < 0)
top += screen_height;
if (right <= 0)
right += screen_width;
if (bottom <= 0)
bottom += screen_height;
/* clamp */
if (left < 0)
left = 0;
if (right > screen_width)
right = screen_width;
if (top < 0)
top = 0;
if (bottom > screen_height)
bottom = screen_height;
/* validate */
if (right <= left || bottom <= top) {
i_push_error(0, "image would be empty");
return NULL;
}
width = right - left;
height = bottom - top;
/* select a pixel format */
pix_attrs[1] = CGDisplayIDToOpenGLDisplayMask(disp);
err = CGLChoosePixelFormat(pix_attrs, &pix, &npix);
if (err) {
i_push_errorf(err, "CGLChoosePixelFormat: %d", (int)err);
return NULL;
}
if (!npix) {
i_push_error(0, "No pixel format found - hidden display?");
return NULL;
}
/* make ourselves a context */
err = CGLCreateContext(pix, NULL, &ctx);
CGLDestroyPixelFormat(pix);
if (err) {
i_push_errorf(err, "CGLCreateContext: %d", (int)err);
return NULL;
}
err = CGLSetCurrentContext(ctx);
if (err) {
i_push_errorf(err, "CGLSetCurrentContext: %d", (int)err);
return NULL;
}
err = CGLSetFullScreen(ctx);
if (err) {
i_push_errorf(err, "CGLSetFullScreen: %d", (int)err);
return NULL;
}
/* capture */
im = i_img_8_new(width, height, 3);
if (im) {
size_t line_size = width * 4;
size_t buf_size = line_size * height;
unsigned char *buf = malloc(buf_size);
i_img_dim y = height - 1;
i_color *bufp = (i_color *)buf; /* hackish */
/* GL has the vertical axis going from bottom to top, so translate it */
glReadBuffer(GL_FRONT);
glReadPixels(left, screen_height - top - height, width, height,
GL_RGBA, GL_UNSIGNED_BYTE, buf);
/* transfer */
while (y >= 0) {
i_plin(im, 0, width, y, bufp);
bufp += width;
--y;
}
free(buf);
i_tags_setn(&im->tags, "ss_window_width", width);
i_tags_setn(&im->tags, "ss_window_height", height);
i_tags_set(&im->tags, "ss_type", "Darwin", 6);
i_tags_set(&im->tags, "ss_variant", "<11", 3);
i_tags_setn(&im->tags, "ss_left", left);
i_tags_setn(&im->tags, "ss_top", top);
}
/* clean up */
CGLSetCurrentContext(NULL);
CGLDestroyContext(ctx);
return im;
}
int
i_t1_bbox(i_t1_font_t font, double points,const char *str,size_t len, i_img_dim cords[6], int utf8,char const *flags) {
BBox bbox;
BBox gbbox;
int mod_flags = t1_get_flags(flags);
i_img_dim advance;
int fontnum = font->font_id;
int space_position;
i_clear_error();
i_mutex_lock(mutex);
space_position = T1_GetEncodingIndex(fontnum, "space");
mm_log((1,"i_t1_bbox(font %p (%d),points %.2f,str '%.*s', len %u)\n",
font, fontnum,points,(int)len,str,(unsigned)len));
if (T1_LoadFont(fontnum) == -1) {
t1_push_error();
i_mutex_unlock(mutex);
return 0;
}
if (len == 0) {
/* len == 0 has special meaning to T1lib, but it means there's
nothing to draw, so return that */
bbox.llx = bbox.lly = bbox.urx = bbox.ury = 0;
advance = 0;
}
else {
if (utf8) {
int worklen;
char *work = t1_from_utf8(str, len, &worklen);
if (!work) {
i_mutex_unlock(mutex);
return 0;
}
advance = T1_GetStringWidth(fontnum, work, worklen, 0, mod_flags);
bbox = T1_GetStringBBox(fontnum,work,worklen,0,mod_flags);
t1_fix_bbox(&bbox, work, worklen, advance, space_position);
myfree(work);
}
else {
advance = T1_GetStringWidth(fontnum, (char *)str, len, 0, mod_flags);
bbox = T1_GetStringBBox(fontnum,(char *)str,len,0,mod_flags);
t1_fix_bbox(&bbox, str, len, advance, space_position);
}
}
gbbox = T1_GetFontBBox(fontnum);
mm_log((1,"bbox: (%d, %d, %d, %d, %d, %d)\n",
(int)(bbox.llx*points/1000),
(int)(gbbox.lly*points/1000),
(int)(bbox.urx*points/1000),
(int)(gbbox.ury*points/1000),
(int)(bbox.lly*points/1000),
(int)(bbox.ury*points/1000) ));
cords[BBOX_NEG_WIDTH]=((double)bbox.llx*points)/1000;
cords[BBOX_POS_WIDTH]=((double)bbox.urx*points)/1000;
cords[BBOX_GLOBAL_DESCENT]=((double)gbbox.lly*points)/1000;
cords[BBOX_GLOBAL_ASCENT]=((double)gbbox.ury*points)/1000;
cords[BBOX_DESCENT]=((double)bbox.lly*points)/1000;
cords[BBOX_ASCENT]=((double)bbox.ury*points)/1000;
cords[BBOX_ADVANCE_WIDTH] = ((double)advance * points)/1000;
cords[BBOX_RIGHT_BEARING] =
cords[BBOX_ADVANCE_WIDTH] - cords[BBOX_POS_WIDTH];
i_mutex_unlock(mutex);
return BBOX_RIGHT_BEARING+1;
}
undef_int
i_t1_cp(i_t1_font_t font, i_img *im,i_img_dim xb,i_img_dim yb,int channel,double points,char* str,size_t len,int align, int utf8, char const *flags, int aa) {
GLYPH *glyph;
int xsize,ysize,x,y;
i_color val;
int mod_flags = t1_get_flags(flags);
int fontnum = font->font_id;
unsigned int ch_mask_store;
i_clear_error();
mm_log((1, "i_t1_cp(font %p (%d), im %p, (xb,yb)=" i_DFp ", channel %d, points %g, str %p, len %u, align %d, utf8 %d, flags '%s', aa %d)\n",
font, fontnum, im, i_DFcp(xb, yb), channel, points, str, (unsigned)len, align, utf8, flags, aa));
if (im == NULL) {
mm_log((1,"i_t1_cp: Null image in input\n"));
i_push_error(0, "null image");
return(0);
}
i_mutex_lock(mutex);
i_t1_set_aa(aa);
if (utf8) {
int worklen;
char *work = t1_from_utf8(str, len, &worklen);
if (work == NULL) {
i_mutex_unlock(mutex);
return 0;
}
glyph=T1_AASetString( fontnum, work, worklen, 0, mod_flags, points, NULL);
myfree(work);
}
else {
glyph=T1_AASetString( fontnum, str, len, 0, mod_flags, points, NULL);
}
if (glyph == NULL) {
t1_push_error();
i_push_error(0, "i_t1_cp: T1_AASetString failed");
i_mutex_unlock(mutex);
return 0;
}
mm_log((1,"metrics: ascent: %d descent: %d\n",glyph->metrics.ascent,glyph->metrics.descent));
mm_log((1," leftSideBearing: %d rightSideBearing: %d\n",glyph->metrics.leftSideBearing,glyph->metrics.rightSideBearing));
mm_log((1," advanceX: %d advanceY: %d\n",glyph->metrics.advanceX,glyph->metrics.advanceY));
mm_log((1,"bpp: %lu\n", (unsigned long)glyph->bpp));
xsize=glyph->metrics.rightSideBearing-glyph->metrics.leftSideBearing;
ysize=glyph->metrics.ascent-glyph->metrics.descent;
mm_log((1,"width: %d height: %d\n",xsize,ysize));
ch_mask_store=im->ch_mask;
im->ch_mask=1<<channel;
if (align==1) { xb+=glyph->metrics.leftSideBearing; yb-=glyph->metrics.ascent; }
for(y=0;y<ysize;y++) for(x=0;x<xsize;x++) {
val.channel[channel]=glyph->bits[y*xsize+x];
i_ppix(im,x+xb,y+yb,&val);
}
im->ch_mask=ch_mask_store;
i_mutex_unlock(mutex);
return 1;
}
TT_Fonthandle*
i_tt_new(const char *fontname) {
TT_Error error;
TT_Fonthandle *handle;
unsigned short i,n;
unsigned short platform,encoding;
i_tt_engine *tteng;
if ((tteng = i_init_tt()) == NULL) {
i_push_error(0, "Could not initialize FT1 engine");
return NULL;
}
i_clear_error();
mm_log((1,"i_tt_new(fontname '%s')\n",fontname));
/* allocate memory for the structure */
handle = mymalloc( sizeof(TT_Fonthandle) ); /* checked 5Nov05 tonyc */
/* load the typeface */
error = TT_Open_Face( tteng->engine, fontname, &handle->face );
if ( error ) {
myfree(handle);
if ( error == TT_Err_Could_Not_Open_File ) {
mm_log((1, "Could not find/open %s.\n", fontname ));
}
else {
mm_log((1, "Error while opening %s, error code = 0x%x.\n",fontname,
(unsigned)error ));
}
i_tt_push_error(error);
return NULL;
}
TT_Get_Face_Properties( handle->face, &(handle->properties) );
/* First, look for a Unicode charmap */
n = handle->properties.num_CharMaps;
USTRCT( handle->char_map )=NULL; /* Invalidate character map */
for ( i = 0; i < n; i++ ) {
TT_Get_CharMap_ID( handle->face, i, &platform, &encoding );
if ( (platform == 3 && encoding == 1 )
|| (platform == 0 && encoding == 0 ) ) {
mm_log((2,"i_tt_new - found char map platform %u encoding %u\n",
platform, encoding));
TT_Get_CharMap( handle->face, i, &(handle->char_map) );
break;
}
}
if (!USTRCT(handle->char_map) && n != 0) {
/* just use the first one */
TT_Get_CharMap( handle->face, 0, &(handle->char_map));
}
/* Zero the pointsizes - and ordering */
for(i=0;i<TT_CHC;i++) {
USTRCT(handle->instanceh[i].instance)=NULL;
handle->instanceh[i].order=i;
handle->instanceh[i].ptsize=0;
handle->instanceh[i].smooth=-1;
}
#ifdef FTXPOST
handle->loaded_names = 0;
#endif
mm_log((1,"i_tt_new <- %p\n",handle));
return handle;
}
/*
=item i_tt_face_name(handle, name_buf, name_buf_size)
Retrieve's the font's postscript name.
This is complicated by the need to handle encodings and so on.
=cut
*/
size_t
i_tt_face_name(TT_Fonthandle *handle, char *name_buf, size_t name_buf_size) {
TT_Face_Properties props;
int name_count;
int i;
TT_UShort platform_id, encoding_id, lang_id, name_id;
TT_UShort name_len;
TT_String *name;
int want_index = -1; /* an acceptable but not perfect name */
int score = 0;
i_clear_error();
TT_Get_Face_Properties(handle->face, &props);
name_count = props.num_Names;
for (i = 0; i < name_count; ++i) {
TT_Get_Name_ID(handle->face, i, &platform_id, &encoding_id, &lang_id,
&name_id);
TT_Get_Name_String(handle->face, i, &name, &name_len);
if (platform_id != TT_PLATFORM_APPLE_UNICODE && name_len
&& name_id == TT_NAME_ID_PS_NAME) {
int might_want_index = -1;
int might_score = 0;
if ((platform_id == TT_PLATFORM_MACINTOSH && encoding_id == TT_MAC_ID_ROMAN)
||
(platform_id == TT_PLATFORM_MICROSOFT && encoding_id == TT_MS_LANGID_ENGLISH_UNITED_STATES)) {
/* exactly what we want */
want_index = i;
break;
}
if (platform_id == TT_PLATFORM_MICROSOFT
&& (encoding_id & 0xFF) == TT_MS_LANGID_ENGLISH_GENERAL) {
/* any english is good */
might_want_index = i;
might_score = 9;
}
/* there might be something in between */
else {
/* anything non-unicode is better than nothing */
might_want_index = i;
might_score = 1;
}
if (might_score > score) {
score = might_score;
want_index = might_want_index;
}
}
}
if (want_index != -1) {
TT_Get_Name_String(handle->face, want_index, &name, &name_len);
strncpy(name_buf, name, name_buf_size);
name_buf[name_buf_size-1] = '\0';
return strlen(name) + 1;
}
else {
i_push_error(0, "no face name present");
return 0;
}
}
i_img *
imss_x11(unsigned long display_ul, int window_id,
int left, int top, int right, int bottom) {
Display *display = (Display *)display_ul;
int own_display = 0; /* non-zero if we connect */
XImage *image;
XWindowAttributes attr;
i_img *result;
i_color *line, *cp;
int x, y;
XColor *colors;
XErrorHandler old_handler;
int width, height;
i_clear_error();
/* we don't want the default noisy error handling */
old_handler = XSetErrorHandler(my_handler);
if (!display) {
display = XOpenDisplay(NULL);
++own_display;
if (!display) {
XSetErrorHandler(old_handler);
i_push_error(0, "No display supplied and cannot connect");
return NULL;
}
}
if (!window_id) {
int screen = DefaultScreen(display);
window_id = RootWindow(display, screen);
}
if (!XGetWindowAttributes(display, window_id, &attr)) {
XSetErrorHandler(old_handler);
if (own_display)
XCloseDisplay(display);
i_push_error(0, "Cannot XGetWindowAttributes");
return NULL;
}
/* adjust negative/zero values to window size */
if (left < 0)
left += attr.width;
if (top < 0)
top += attr.height;
if (right <= 0)
right += attr.width;
if (bottom <= 0)
bottom += attr.height;
/* clamp */
if (left < 0)
left = 0;
if (right > attr.width)
right = attr.width;
if (top < 0)
top = 0;
if (bottom > attr.height)
bottom = attr.height;
/* validate */
if (right <= left || bottom <= top) {
XSetErrorHandler(old_handler);
if (own_display)
XCloseDisplay(display);
i_push_error(0, "image would be empty");
return NULL;
}
width = right - left;
height = bottom - top;
image = XGetImage(display, window_id, left, top, width, height,
-1, ZPixmap);
if (!image) {
XSetErrorHandler(old_handler);
if (own_display)
XCloseDisplay(display);
i_push_error(0, "Cannot XGetImage");
return NULL;
}
result = i_img_8_new(width, height, 3);
line = mymalloc(sizeof(i_color) * width);
colors = mymalloc(sizeof(XColor) * width);
for (y = 0; y < height; ++y) {
cp = line;
/* XQueryColors seems to be a round-trip, so do one big request
instead of one per pixel */
for (x = 0; x < width; ++x) {
colors[x].pixel = XGetPixel(image, x, y);
}
XQueryColors(display, attr.colormap, colors, width);
for (x = 0; x < width; ++x) {
cp->rgb.r = colors[x].red >> 8;
cp->rgb.g = colors[x].green >> 8;
cp->rgb.b = colors[x].blue >> 8;
++cp;
}
i_plin(result, 0, width, y, line);
}
myfree(line);
myfree(colors);
XDestroyImage(image);
XSetErrorHandler(old_handler);
if (own_display)
XCloseDisplay(display);
i_tags_setn(&result->tags, "ss_window_width", attr.width);
i_tags_setn(&result->tags, "ss_window_height", attr.height);
i_tags_set(&result->tags, "ss_type", "X11", 3);
i_tags_setn(&result->tags, "ss_left", left);
i_tags_setn(&result->tags, "ss_top", top);
return result;
}
undef_int
i_t1_text(i_t1_font_t font, i_img *im, i_img_dim xb, i_img_dim yb,const i_color *cl, double points,const char* str,size_t len,int align, int utf8, char const *flags, int aa) {
GLYPH *glyph;
int xsize,ysize,y;
int mod_flags = t1_get_flags(flags);
i_render *r;
int fontnum = font->font_id;
mm_log((1, "i_t1_text(font %p (%d), im %p, (xb,yb)=" i_DFp ", cl (%d,%d,%d,%d), points %g, str %p, len %u, align %d, utf8 %d, flags '%s', aa %d)\n",
font, fontnum, im, i_DFcp(xb, yb), cl->rgba.r, cl->rgba.g, cl->rgba.b, cl->rgba.a, points, str, (unsigned)len, align, utf8, flags, aa));
i_clear_error();
if (im == NULL) {
i_push_error(0, "null image");
mm_log((1,"i_t1_text: Null image in input\n"));
return(0);
}
i_mutex_lock(mutex);
i_t1_set_aa(aa);
if (utf8) {
int worklen;
char *work = t1_from_utf8(str, len, &worklen);
if (!work) {
i_mutex_unlock(mutex);
return 0;
}
glyph=T1_AASetString( fontnum, work, worklen, 0, mod_flags, points, NULL);
myfree(work);
}
else {
/* T1_AASetString() accepts a char * not a const char */
glyph=T1_AASetString( fontnum, (char *)str, len, 0, mod_flags, points, NULL);
}
if (glyph == NULL) {
mm_log((1, "T1_AASetString failed\n"));
t1_push_error();
i_push_error(0, "i_t1_text(): T1_AASetString failed");
i_mutex_unlock(mutex);
return 0;
}
mm_log((1,"metrics: ascent: %d descent: %d\n",glyph->metrics.ascent,glyph->metrics.descent));
mm_log((1," leftSideBearing: %d rightSideBearing: %d\n",glyph->metrics.leftSideBearing,glyph->metrics.rightSideBearing));
mm_log((1," advanceX: %d advanceY: %d\n",glyph->metrics.advanceX,glyph->metrics.advanceY));
mm_log((1,"bpp: %lu\n",(unsigned long)glyph->bpp));
xsize=glyph->metrics.rightSideBearing-glyph->metrics.leftSideBearing;
ysize=glyph->metrics.ascent-glyph->metrics.descent;
mm_log((1,"width: %d height: %d\n",xsize,ysize));
if (align==1) { xb+=glyph->metrics.leftSideBearing; yb-=glyph->metrics.ascent; }
r = i_render_new(im, xsize);
for(y=0;y<ysize;y++) {
i_render_color(r, xb, yb+y, xsize, (unsigned char *)glyph->bits+y*xsize, cl);
}
i_render_delete(r);
i_mutex_unlock(mutex);
return 1;
}