static void set_logfont(const char *face, int size, LOGFONT *lf);
-static LPVOID render_text(const char *face, int size, const char *text, int length, int aa,
- HBITMAP *pbm, SIZE *psz, TEXTMETRIC *tm, i_img_dim *bbox, int utf8);
+static unsigned char *render_text(const char *face, int size, const char *text, size_t length, int aa,
+ SIZE *psz, TEXTMETRIC *tm, size_t *bytes_per_line, i_img_dim *bbox, int utf8);
static LPWSTR utf8_to_wide_string(char const *text, int text_len, int *wide_chars);
+static LPWSTR latin1_to_wide_string(char const *text, int text_len, int *wide_chars);
/*
=item i_wf_bbox(face, size, text, length, bbox, utf8)
i_wf_text(const char *face, i_img *im, i_img_dim tx, i_img_dim ty, const i_color *cl, i_img_dim size,
const char *text, size_t len, int align, int aa, int utf8) {
unsigned char *bits;
- HBITMAP bm;
SIZE sz;
- i_img_dim line_width;
+ size_t line_width;
i_img_dim x, y;
int ch;
TEXTMETRIC tm;
int top;
i_img_dim bbox[BOUNDING_BOX_COUNT];
+ i_render *r;
+ unsigned char *outp;
i_clear_error();
if (!i_wf_bbox(face, size, text, len, bbox, utf8))
return 0;
- bits = render_text(face, size, text, len, aa, &bm, &sz, &tm, bbox, utf8);
+ bits = render_text(face, size, text, len, aa, &sz, &tm, &line_width, bbox, utf8);
if (!bits)
return 0;
-
+
tx += bbox[BBOX_NEG_WIDTH];
- line_width = sz.cx * 3;
- line_width = (line_width + 3) / 4 * 4;
top = ty;
if (align) {
top -= tm.tmAscent;
top -= tm.tmAscent - bbox[BBOX_ASCENT];
}
+ r = i_render_new(im, sz.cx);
+ outp = bits;
for (y = 0; y < sz.cy; ++y) {
- for (x = 0; x < sz.cx; ++x) {
- i_color pel;
- int scale = bits[3 * x];
- i_gpix(im, tx+x, top+sz.cy-y-1, &pel);
- for (ch = 0; ch < im->channels; ++ch) {
- pel.channel[ch] =
- ((255-scale) * pel.channel[ch] + scale*cl->channel[ch]) / 255;
- }
- i_ppix(im, tx+x, top+sz.cy-y-1, &pel);
- }
- bits += line_width;
+ i_render_color(r, tx, top + sz.cy - y - 1, sz.cx, outp, cl);
+ outp += line_width;
}
- DeleteObject(bm);
+ i_render_delete(r);
+ myfree(bits);
return 1;
}
i_wf_cp(const char *face, i_img *im, i_img_dim tx, i_img_dim ty, int channel, i_img_dim size,
const char *text, size_t len, int align, int aa, int utf8) {
unsigned char *bits;
- HBITMAP bm;
SIZE sz;
- int line_width;
+ size_t line_width;
i_img_dim x, y;
TEXTMETRIC tm;
i_img_dim top;
i_img_dim bbox[BOUNDING_BOX_COUNT];
+ unsigned char *outp;
i_clear_error();
if (!i_wf_bbox(face, size, text, len, bbox, utf8))
return 0;
- bits = render_text(face, size, text, len, aa, &bm, &sz, &tm, bbox, utf8);
+ bits = render_text(face, size, text, len, aa, &sz, &tm, &line_width, bbox, utf8);
if (!bits)
return 0;
- line_width = sz.cx * 3;
- line_width = (line_width + 3) / 4 * 4;
top = ty;
if (align) {
top -= tm.tmAscent;
top -= tm.tmAscent - bbox[BBOX_ASCENT];
}
+ outp = bits;
for (y = 0; y < sz.cy; ++y) {
for (x = 0; x < sz.cx; ++x) {
i_color pel;
- int scale = bits[3 * x];
+ int scale = outp[x];
i_gpix(im, tx+x, top+sz.cy-y-1, &pel);
pel.channel[channel] = scale;
i_ppix(im, tx+x, top+sz.cy-y-1, &pel);
}
- bits += line_width;
+ outp += line_width;
}
- DeleteObject(bm);
+ myfree(bits);
return 1;
}
=cut
*/
-static LPVOID render_text(const char *face, int size, const char *text, int length, int aa,
- HBITMAP *pbm, SIZE *psz, TEXTMETRIC *tm, i_img_dim *bbox, int utf8) {
+static unsigned char *
+render_text(const char *face, int size, const char *text, size_t length, int aa,
+ SIZE *psz, TEXTMETRIC *tm, size_t *bytes_per_line, i_img_dim *bbox, int utf8) {
BITMAPINFO bmi;
BITMAPINFOHEADER *bmih = &bmi.bmiHeader;
HDC dc, bmpDc;
LPVOID bits;
int wide_count;
LPWSTR wide_text;
+ unsigned char *result;
dc = GetDC(NULL);
set_logfont(face, size, &lf);
wide_text = utf8_to_wide_string(text, length, &wide_count);
}
else {
- wide_text = NULL;
+ wide_text = latin1_to_wide_string(text, length, &wide_count);
}
bmpDc = CreateCompatibleDC(dc);
oldBm = SelectObject(bmpDc, bm);
SetTextColor(bmpDc, RGB(255, 255, 255));
SetBkColor(bmpDc, RGB(0, 0, 0));
- if (utf8) {
- TextOutW(bmpDc, -bbox[BBOX_NEG_WIDTH], 0, wide_text, wide_count);
- }
- else {
- TextOut(bmpDc, -bbox[BBOX_NEG_WIDTH], 0, text, length);
- }
+ TextOutW(bmpDc, -bbox[BBOX_NEG_WIDTH], 0, wide_text, wide_count);
SelectObject(bmpDc, oldBm);
}
else {
DeleteObject(font);
DeleteDC(bmpDc);
ReleaseDC(NULL, dc);
- if (wide_text)
- myfree(wide_text);
+ myfree(wide_text);
return NULL;
}
SelectObject(bmpDc, oldFont);
DeleteObject(font);
}
else {
- if (wide_text)
- myfree(wide_text);
+ myfree(wide_text);
i_push_errorf(0, "Could not create logical font: %ld",
GetLastError());
DeleteDC(bmpDc);
DeleteDC(bmpDc);
}
else {
- if (wide_text)
- myfree(wide_text);
+ myfree(wide_text);
i_push_errorf(0, "Could not create rendering DC: %ld", GetLastError());
ReleaseDC(NULL, dc);
return NULL;
}
- if (wide_text)
- myfree(wide_text);
+ myfree(wide_text);
ReleaseDC(NULL, dc);
- *pbm = bm;
*psz = sz;
- return bits;
+ /* convert into a map we can just pass to i_render_color() */
+ {
+ i_img_dim x, y;
+ unsigned char *outp, *ucbits;
+ size_t bits_line_width;
+
+ *bytes_per_line = sz.cx;
+ result = mymalloc(sz.cx * sz.cy);
+ outp = result;
+ ucbits = bits;
+ bits_line_width = sz.cx * 3;
+ bits_line_width = (bits_line_width + 3) / 4 * 4;
+
+ for (y = 0; y < sz.cy; ++y) {
+ for (x = 0; x < sz.cx; ++x) {
+ *outp++ = ucbits[3 * x];
+ }
+ ucbits += bits_line_width;
+ }
+ }
+ DeleteObject(bm);
+
+ return result;
}
/*
static
LPWSTR
utf8_to_wide_string(char const *text, int text_len, int *wide_chars) {
- int wide_count = MultiByteToWideChar(CP_UTF8, 0, text, text_len, NULL, 0);
+ int wide_count = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, text, text_len, NULL, 0);
LPWSTR result;
if (wide_count < 0) {
}
++wide_count;
result = mymalloc(sizeof(WCHAR) * wide_count);
- if (MultiByteToWideChar(CP_UTF8, 0, text, text_len, result, wide_count) < 0) {
+ if (MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, text, text_len, result, wide_count) < 0) {
i_push_errorf(0, "Could not convert utf8: %ld", GetLastError());
return NULL;
}
return result;
}
+static LPWSTR
+latin1_to_wide_string(char const *text, int text_len, int *wide_chars) {
+ LPWSTR result = mymalloc(sizeof(WCHAR) * (text_len + 1));
+ size_t i;
+
+ for (i = 0; i < text_len; ++i) {
+ result[i] = (unsigned char)text[i];
+ }
+ result[i] = 0;
+ *wide_chars = text_len;
+
+ return result;
+}
/*
=back
projects / imager.git / blobdiff