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diff --git a/src/win32/cairo-win32-font.c b/src/win32/cairo-win32-font.c
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+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ */
+
+#define WIN32_LEAN_AND_MEAN
+/* We require Windows 2000 features such as GetGlyphIndices */
+#if !defined(WINVER) || (WINVER < 0x0500)
+# define WINVER 0x0500
+#endif
+#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500)
+# define _WIN32_WINNT 0x0500
+#endif
+
+#include "cairoint.h"
+
+#include "cairo-win32-private.h"
+
+#include "cairo-array-private.h"
+#include "cairo-error-private.h"
+#include "cairo-image-surface-private.h"
+#include "cairo-pattern-private.h"
+#include "cairo-scaled-font-subsets-private.h"
+
+#include <wchar.h>
+
+#ifndef SPI_GETFONTSMOOTHINGTYPE
+#define SPI_GETFONTSMOOTHINGTYPE 0x200a
+#endif
+#ifndef FE_FONTSMOOTHINGCLEARTYPE
+#define FE_FONTSMOOTHINGCLEARTYPE 2
+#endif
+#ifndef CLEARTYPE_QUALITY
+#define CLEARTYPE_QUALITY 5
+#endif
+#ifndef TT_PRIM_CSPLINE
+#define TT_PRIM_CSPLINE 3
+#endif
+
+#define CMAP_TAG 0x70616d63
+
+/**
+ * SECTION:cairo-win32-fonts
+ * @Title: Win32 Fonts
+ * @Short_Description: Font support for Microsoft Windows
+ * @See_Also: #cairo_font_face_t
+ *
+ * The Microsoft Windows font backend is primarily used to render text on
+ * Microsoft Windows systems.
+ **/
+
+/**
+ * CAIRO_HAS_WIN32_FONT:
+ *
+ * Defined if the Microsoft Windows font backend is available.
+ * This macro can be used to conditionally compile backend-specific code.
+ *
+ * Since: 1.8
+ **/
+
+const cairo_scaled_font_backend_t _cairo_win32_scaled_font_backend;
+
+typedef struct {
+ cairo_scaled_font_t base;
+
+ LOGFONTW logfont;
+
+ BYTE quality;
+
+ /* We do drawing and metrics computation in a "logical space" which
+ * is similar to font space, except that it is scaled by a factor
+ * of the (desired font size) * (WIN32_FONT_LOGICAL_SCALE). The multiplication
+ * by WIN32_FONT_LOGICAL_SCALE allows for sub-pixel precision.
+ */
+ double logical_scale;
+
+ /* The size we should actually request the font at from Windows; differs
+ * from the logical_scale because it is quantized for orthogonal
+ * transformations
+ */
+ double logical_size;
+
+ /* Transformations from device <=> logical space
+ */
+ cairo_matrix_t logical_to_device;
+ cairo_matrix_t device_to_logical;
+
+ /* We special case combinations of 90-degree-rotations, scales and
+ * flips ... that is transformations that take the axes to the
+ * axes. If preserve_axes is true, then swap_axes/swap_x/swap_y
+ * encode the 8 possibilities for orientation (4 rotation angles with
+ * and without a flip), and scale_x, scale_y the scale components.
+ */
+ cairo_bool_t preserve_axes;
+ cairo_bool_t swap_axes;
+ cairo_bool_t swap_x;
+ cairo_bool_t swap_y;
+ double x_scale;
+ double y_scale;
+
+ /* The size of the design unit of the font
+ */
+ int em_square;
+
+ HFONT scaled_hfont;
+ HFONT unscaled_hfont;
+
+ cairo_bool_t is_bitmap;
+ cairo_bool_t is_type1;
+ cairo_bool_t delete_scaled_hfont;
+ cairo_bool_t has_type1_notdef_index;
+ unsigned long type1_notdef_index;
+} cairo_win32_scaled_font_t;
+
+static cairo_status_t
+_cairo_win32_scaled_font_set_metrics (cairo_win32_scaled_font_t *scaled_font);
+
+static cairo_status_t
+_cairo_win32_scaled_font_init_glyph_metrics (cairo_win32_scaled_font_t *scaled_font,
+ cairo_scaled_glyph_t *scaled_glyph);
+
+static cairo_status_t
+_cairo_win32_scaled_font_init_glyph_surface (cairo_win32_scaled_font_t *scaled_font,
+ cairo_scaled_glyph_t *scaled_glyph);
+
+static cairo_status_t
+_cairo_win32_scaled_font_init_glyph_path (cairo_win32_scaled_font_t *scaled_font,
+ cairo_scaled_glyph_t *scaled_glyph);
+
+#define NEARLY_ZERO(d) (fabs(d) < (1. / 65536.))
+
+static HDC
+_get_global_font_dc (void)
+{
+ static HDC hdc;
+
+ if (!hdc) {
+ hdc = CreateCompatibleDC (NULL);
+ if (!hdc) {
+ _cairo_win32_print_gdi_error ("_get_global_font_dc");
+ return NULL;
+ }
+
+ if (!SetGraphicsMode (hdc, GM_ADVANCED)) {
+ _cairo_win32_print_gdi_error ("_get_global_font_dc");
+ DeleteDC (hdc);
+ return NULL;
+ }
+ }
+
+ return hdc;
+}
+
+static cairo_status_t
+_compute_transform (cairo_win32_scaled_font_t *scaled_font,
+ cairo_matrix_t *sc)
+{
+ cairo_status_t status;
+
+ if (NEARLY_ZERO (sc->yx) && NEARLY_ZERO (sc->xy) &&
+ !NEARLY_ZERO(sc->xx) && !NEARLY_ZERO(sc->yy)) {
+ scaled_font->preserve_axes = TRUE;
+ scaled_font->x_scale = sc->xx;
+ scaled_font->swap_x = (sc->xx < 0);
+ scaled_font->y_scale = sc->yy;
+ scaled_font->swap_y = (sc->yy < 0);
+ scaled_font->swap_axes = FALSE;
+
+ } else if (NEARLY_ZERO (sc->xx) && NEARLY_ZERO (sc->yy) &&
+ !NEARLY_ZERO(sc->yx) && !NEARLY_ZERO(sc->xy)) {
+ scaled_font->preserve_axes = TRUE;
+ scaled_font->x_scale = sc->yx;
+ scaled_font->swap_x = (sc->yx < 0);
+ scaled_font->y_scale = sc->xy;
+ scaled_font->swap_y = (sc->xy < 0);
+ scaled_font->swap_axes = TRUE;
+
+ } else {
+ scaled_font->preserve_axes = FALSE;
+ scaled_font->swap_x = scaled_font->swap_y = scaled_font->swap_axes = FALSE;
+ }
+
+ if (scaled_font->preserve_axes) {
+ if (scaled_font->swap_x)
+ scaled_font->x_scale = - scaled_font->x_scale;
+ if (scaled_font->swap_y)
+ scaled_font->y_scale = - scaled_font->y_scale;
+
+ scaled_font->logical_scale = WIN32_FONT_LOGICAL_SCALE * scaled_font->y_scale;
+ scaled_font->logical_size = WIN32_FONT_LOGICAL_SCALE *
+ _cairo_lround (scaled_font->y_scale);
+ }
+
+ /* The font matrix has x and y "scale" components which we extract and
+ * use as character scale values.
+ */
+ cairo_matrix_init (&scaled_font->logical_to_device,
+ sc->xx, sc->yx, sc->xy, sc->yy, 0, 0);
+
+ if (!scaled_font->preserve_axes) {
+ status = _cairo_matrix_compute_basis_scale_factors (&scaled_font->logical_to_device,
+ &scaled_font->x_scale, &scaled_font->y_scale,
+ TRUE); /* XXX: Handle vertical text */
+ if (status)
+ return status;
+
+ scaled_font->logical_size =
+ _cairo_lround (WIN32_FONT_LOGICAL_SCALE * scaled_font->y_scale);
+ scaled_font->logical_scale =
+ WIN32_FONT_LOGICAL_SCALE * scaled_font->y_scale;
+ }
+
+ cairo_matrix_scale (&scaled_font->logical_to_device,
+ 1.0 / scaled_font->logical_scale,
+ 1.0 / scaled_font->logical_scale);
+
+ scaled_font->device_to_logical = scaled_font->logical_to_device;
+
+ status = cairo_matrix_invert (&scaled_font->device_to_logical);
+ if (status)
+ cairo_matrix_init_identity (&scaled_font->device_to_logical);
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_bool_t
+_have_cleartype_quality (void)
+{
+ OSVERSIONINFO version_info;
+
+ version_info.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
+
+ if (!GetVersionEx (&version_info)) {
+ _cairo_win32_print_gdi_error ("_have_cleartype_quality");
+ return FALSE;
+ }
+
+ return (version_info.dwMajorVersion > 5 ||
+ (version_info.dwMajorVersion == 5 &&
+ version_info.dwMinorVersion >= 1)); /* XP or newer */
+}
+
+static BYTE
+_get_system_quality (void)
+{
+ BOOL font_smoothing;
+ UINT smoothing_type;
+
+ if (!SystemParametersInfo (SPI_GETFONTSMOOTHING, 0, &font_smoothing, 0)) {
+ _cairo_win32_print_gdi_error ("_get_system_quality");
+ return DEFAULT_QUALITY;
+ }
+
+ if (font_smoothing) {
+ if (_have_cleartype_quality ()) {
+ if (!SystemParametersInfo (SPI_GETFONTSMOOTHINGTYPE,
+ 0, &smoothing_type, 0)) {
+ _cairo_win32_print_gdi_error ("_get_system_quality");
+ return DEFAULT_QUALITY;
+ }
+
+ if (smoothing_type == FE_FONTSMOOTHINGCLEARTYPE)
+ return CLEARTYPE_QUALITY;
+ }
+
+ return ANTIALIASED_QUALITY;
+ } else {
+ return DEFAULT_QUALITY;
+ }
+}
+
+/* If face_hfont is non-%NULL then font_matrix must be a simple scale by some
+ * factor S, ctm must be the identity, logfont->lfHeight must be -S,
+ * logfont->lfWidth, logfont->lfEscapement, logfont->lfOrientation must
+ * all be 0, and face_hfont is the result of calling CreateFontIndirectW on
+ * logfont.
+ */
+static cairo_status_t
+_win32_scaled_font_create (LOGFONTW *logfont,
+ HFONT face_hfont,
+ cairo_font_face_t *font_face,
+ const cairo_matrix_t *font_matrix,
+ const cairo_matrix_t *ctm,
+ const cairo_font_options_t *options,
+ cairo_scaled_font_t **font_out)
+{
+ HDC hdc;
+ cairo_win32_scaled_font_t *f;
+ cairo_matrix_t scale;
+ cairo_status_t status;
+
+ hdc = _get_global_font_dc ();
+ if (hdc == NULL)
+ return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+ f = malloc (sizeof(cairo_win32_scaled_font_t));
+ if (f == NULL)
+ return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+ f->logfont = *logfont;
+
+ /* We don't have any control over the hinting style or subpixel
+ * order in the Win32 font API, so we ignore those parts of
+ * cairo_font_options_t. We use the 'antialias' field to set
+ * the 'quality'.
+ *
+ * XXX: The other option we could pay attention to, but don't
+ * here is the hint_metrics options.
+ */
+ if (options->antialias == CAIRO_ANTIALIAS_DEFAULT)
+ f->quality = _get_system_quality ();
+ else {
+ switch (options->antialias) {
+ case CAIRO_ANTIALIAS_NONE:
+ f->quality = NONANTIALIASED_QUALITY;
+ break;
+ case CAIRO_ANTIALIAS_GRAY:
+ case CAIRO_ANTIALIAS_FAST:
+ case CAIRO_ANTIALIAS_GOOD:
+ f->quality = ANTIALIASED_QUALITY;
+ break;
+ case CAIRO_ANTIALIAS_SUBPIXEL:
+ case CAIRO_ANTIALIAS_BEST:
+ if (_have_cleartype_quality ())
+ f->quality = CLEARTYPE_QUALITY;
+ else
+ f->quality = ANTIALIASED_QUALITY;
+ break;
+ case CAIRO_ANTIALIAS_DEFAULT:
+ ASSERT_NOT_REACHED;
+ }
+ }
+
+ f->em_square = 0;
+ f->scaled_hfont = NULL;
+ f->unscaled_hfont = NULL;
+ f->has_type1_notdef_index = FALSE;
+
+ if (f->quality == logfont->lfQuality ||
+ (logfont->lfQuality == DEFAULT_QUALITY &&
+ options->antialias == CAIRO_ANTIALIAS_DEFAULT)) {
+ /* If face_hfont is non-NULL, then we can use it to avoid creating our
+ * own --- because the constraints on face_hfont mentioned above
+ * guarantee it was created in exactly the same way that
+ * _win32_scaled_font_get_scaled_hfont would create it.
+ */
+ f->scaled_hfont = face_hfont;
+ }
+ /* don't delete the hfont if we're using the one passed in to us */
+ f->delete_scaled_hfont = !f->scaled_hfont;
+
+ cairo_matrix_multiply (&scale, font_matrix, ctm);
+ status = _compute_transform (f, &scale);
+ if (status)
+ goto FAIL;
+
+ status = _cairo_scaled_font_init (&f->base, font_face,
+ font_matrix, ctm, options,
+ &_cairo_win32_scaled_font_backend);
+ if (status)
+ goto FAIL;
+
+ status = _cairo_win32_scaled_font_set_metrics (f);
+ if (status) {
+ _cairo_scaled_font_fini (&f->base);
+ goto FAIL;
+ }
+
+ *font_out = &f->base;
+ return CAIRO_STATUS_SUCCESS;
+
+ FAIL:
+ free (f);
+ return status;
+}
+
+static cairo_status_t
+_win32_scaled_font_set_world_transform (cairo_win32_scaled_font_t *scaled_font,
+ HDC hdc)
+{
+ XFORM xform;
+
+ _cairo_matrix_to_win32_xform (&scaled_font->logical_to_device, &xform);
+
+ if (!SetWorldTransform (hdc, &xform))
+ return _cairo_win32_print_gdi_error ("_win32_scaled_font_set_world_transform");
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_win32_scaled_font_set_identity_transform (HDC hdc)
+{
+ if (!ModifyWorldTransform (hdc, NULL, MWT_IDENTITY))
+ return _cairo_win32_print_gdi_error ("_win32_scaled_font_set_identity_transform");
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_win32_scaled_font_get_scaled_hfont (cairo_win32_scaled_font_t *scaled_font,
+ HFONT *hfont_out)
+{
+ if (!scaled_font->scaled_hfont) {
+ LOGFONTW logfont = scaled_font->logfont;
+ logfont.lfHeight = -scaled_font->logical_size;
+ logfont.lfWidth = 0;
+ logfont.lfEscapement = 0;
+ logfont.lfOrientation = 0;
+ logfont.lfQuality = scaled_font->quality;
+
+ scaled_font->scaled_hfont = CreateFontIndirectW (&logfont);
+ if (!scaled_font->scaled_hfont)
+ return _cairo_win32_print_gdi_error ("_win32_scaled_font_get_scaled_hfont");
+ }
+
+ *hfont_out = scaled_font->scaled_hfont;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_win32_scaled_font_get_unscaled_hfont (cairo_win32_scaled_font_t *scaled_font,
+ HDC hdc,
+ HFONT *hfont_out)
+{
+ if (scaled_font->unscaled_hfont == NULL) {
+ OUTLINETEXTMETRIC *otm;
+ unsigned int otm_size;
+ HFONT scaled_hfont;
+ LOGFONTW logfont;
+ cairo_status_t status;
+
+ status = _win32_scaled_font_get_scaled_hfont (scaled_font,
+ &scaled_hfont);
+ if (status)
+ return status;
+
+ if (! SelectObject (hdc, scaled_hfont))
+ return _cairo_win32_print_gdi_error ("_win32_scaled_font_get_unscaled_hfont:SelectObject");
+
+ otm_size = GetOutlineTextMetrics (hdc, 0, NULL);
+ if (! otm_size)
+ return _cairo_win32_print_gdi_error ("_win32_scaled_font_get_unscaled_hfont:GetOutlineTextMetrics");
+
+ otm = malloc (otm_size);
+ if (otm == NULL)
+ return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+ if (! GetOutlineTextMetrics (hdc, otm_size, otm)) {
+ status = _cairo_win32_print_gdi_error ("_win32_scaled_font_get_unscaled_hfont:GetOutlineTextMetrics");
+ free (otm);
+ return status;
+ }
+
+ scaled_font->em_square = otm->otmEMSquare;
+ free (otm);
+
+ logfont = scaled_font->logfont;
+ logfont.lfHeight = -scaled_font->em_square;
+ logfont.lfWidth = 0;
+ logfont.lfEscapement = 0;
+ logfont.lfOrientation = 0;
+ logfont.lfQuality = scaled_font->quality;
+
+ scaled_font->unscaled_hfont = CreateFontIndirectW (&logfont);
+ if (! scaled_font->unscaled_hfont)
+ return _cairo_win32_print_gdi_error ("_win32_scaled_font_get_unscaled_hfont:CreateIndirect");
+ }
+
+ *hfont_out = scaled_font->unscaled_hfont;
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_win32_scaled_font_select_unscaled_font (cairo_scaled_font_t *scaled_font,
+ HDC hdc)
+{
+ cairo_status_t status;
+ HFONT hfont;
+ HFONT old_hfont = NULL;
+
+ status = _win32_scaled_font_get_unscaled_hfont ((cairo_win32_scaled_font_t *)scaled_font, hdc, &hfont);
+ if (status)
+ return status;
+
+ old_hfont = SelectObject (hdc, hfont);
+ if (!old_hfont)
+ return _cairo_win32_print_gdi_error ("_cairo_win32_scaled_font_select_unscaled_font");
+
+ status = _win32_scaled_font_set_identity_transform (hdc);
+ if (status) {
+ SelectObject (hdc, old_hfont);
+ return status;
+ }
+
+ SetMapMode (hdc, MM_TEXT);
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_bool_t
+_cairo_win32_scaled_font_is_type1 (cairo_scaled_font_t *scaled_font)
+{
+ cairo_win32_scaled_font_t *win32_scaled_font;
+
+ win32_scaled_font = (cairo_win32_scaled_font_t *) scaled_font;
+
+ return win32_scaled_font->is_type1;
+}
+
+cairo_bool_t
+_cairo_win32_scaled_font_is_bitmap (cairo_scaled_font_t *scaled_font)
+{
+ cairo_win32_scaled_font_t *win32_scaled_font;
+
+ win32_scaled_font = (cairo_win32_scaled_font_t *) scaled_font;
+
+ return win32_scaled_font->is_bitmap;
+}
+
+static void
+_cairo_win32_scaled_font_done_unscaled_font (cairo_scaled_font_t *scaled_font)
+{
+}
+
+/* implement the font backend interface */
+
+static cairo_status_t
+_cairo_win32_font_face_create_for_toy (cairo_toy_font_face_t *toy_face,
+ cairo_font_face_t **font_face)
+{
+ LOGFONTW logfont;
+ uint16_t *face_name;
+ int face_name_len;
+ cairo_status_t status;
+
+ status = _cairo_utf8_to_utf16 (toy_face->family, -1,
+ &face_name, &face_name_len);
+ if (status)
+ return status;
+
+ if (face_name_len > LF_FACESIZE - 1)
+ face_name_len = LF_FACESIZE - 1;
+
+ memcpy (logfont.lfFaceName, face_name, sizeof (uint16_t) * face_name_len);
+ logfont.lfFaceName[face_name_len] = 0;
+ free (face_name);
+
+ logfont.lfHeight = 0; /* filled in later */
+ logfont.lfWidth = 0; /* filled in later */
+ logfont.lfEscapement = 0; /* filled in later */
+ logfont.lfOrientation = 0; /* filled in later */
+
+ switch (toy_face->weight) {
+ case CAIRO_FONT_WEIGHT_NORMAL:
+ default:
+ logfont.lfWeight = FW_NORMAL;
+ break;
+ case CAIRO_FONT_WEIGHT_BOLD:
+ logfont.lfWeight = FW_BOLD;
+ break;
+ }
+
+ switch (toy_face->slant) {
+ case CAIRO_FONT_SLANT_NORMAL:
+ default:
+ logfont.lfItalic = FALSE;
+ break;
+ case CAIRO_FONT_SLANT_ITALIC:
+ case CAIRO_FONT_SLANT_OBLIQUE:
+ logfont.lfItalic = TRUE;
+ break;
+ }
+
+ logfont.lfUnderline = FALSE;
+ logfont.lfStrikeOut = FALSE;
+ /* The docs for LOGFONT discourage using this, since the
+ * interpretation is locale-specific, but it's not clear what
+ * would be a better alternative.
+ */
+ logfont.lfCharSet = DEFAULT_CHARSET;
+ logfont.lfOutPrecision = OUT_DEFAULT_PRECIS;
+ logfont.lfClipPrecision = CLIP_DEFAULT_PRECIS;
+ logfont.lfQuality = DEFAULT_QUALITY; /* filled in later */
+ logfont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
+
+ *font_face = cairo_win32_font_face_create_for_logfontw (&logfont);
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_win32_scaled_font_fini (void *abstract_font)
+{
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+
+ if (scaled_font == NULL)
+ return;
+
+ if (scaled_font->scaled_hfont && scaled_font->delete_scaled_hfont)
+ DeleteObject (scaled_font->scaled_hfont);
+
+ if (scaled_font->unscaled_hfont)
+ DeleteObject (scaled_font->unscaled_hfont);
+}
+
+static cairo_int_status_t
+_cairo_win32_scaled_font_type1_text_to_glyphs (cairo_win32_scaled_font_t *scaled_font,
+ double x,
+ double y,
+ const char *utf8,
+ cairo_glyph_t **glyphs,
+ int *num_glyphs)
+{
+ uint16_t *utf16;
+ int n16;
+ int i;
+ WORD *glyph_indices = NULL;
+ cairo_status_t status;
+ double x_pos, y_pos;
+ HDC hdc = NULL;
+ cairo_matrix_t mat;
+
+ status = _cairo_utf8_to_utf16 (utf8, -1, &utf16, &n16);
+ if (status)
+ return status;
+
+ glyph_indices = _cairo_malloc_ab (n16 + 1, sizeof (WORD));
+ if (!glyph_indices) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto FAIL1;
+ }
+
+ hdc = _get_global_font_dc ();
+ assert (hdc != NULL);
+
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ if (status)
+ goto FAIL2;
+
+ if (GetGlyphIndicesW (hdc, utf16, n16, glyph_indices, 0) == GDI_ERROR) {
+ status = _cairo_win32_print_gdi_error ("_cairo_win32_scaled_font_type1_text_to_glyphs:GetGlyphIndicesW");
+ goto FAIL3;
+ }
+
+ *num_glyphs = n16;
+ *glyphs = _cairo_malloc_ab (n16, sizeof (cairo_glyph_t));
+ if (!*glyphs) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto FAIL3;
+ }
+
+ x_pos = x;
+ y_pos = y;
+
+ mat = scaled_font->base.ctm;
+ status = cairo_matrix_invert (&mat);
+ assert (status == CAIRO_STATUS_SUCCESS);
+
+ _cairo_scaled_font_freeze_cache (&scaled_font->base);
+
+ for (i = 0; i < n16; i++) {
+ cairo_scaled_glyph_t *scaled_glyph;
+
+ (*glyphs)[i].index = glyph_indices[i];
+ (*glyphs)[i].x = x_pos;
+ (*glyphs)[i].y = y_pos;
+
+ status = _cairo_scaled_glyph_lookup (&scaled_font->base,
+ glyph_indices[i],
+ CAIRO_SCALED_GLYPH_INFO_METRICS,
+ &scaled_glyph);
+ if (status) {
+ free (*glyphs);
+ *glyphs = NULL;
+ break;
+ }
+
+ x = scaled_glyph->x_advance;
+ y = scaled_glyph->y_advance;
+ cairo_matrix_transform_distance (&mat, &x, &y);
+ x_pos += x;
+ y_pos += y;
+ }
+
+ _cairo_scaled_font_thaw_cache (&scaled_font->base);
+
+FAIL3:
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+FAIL2:
+ free (glyph_indices);
+FAIL1:
+ free (utf16);
+
+ return status;
+}
+
+static cairo_int_status_t
+_cairo_win32_scaled_font_text_to_glyphs (void *abstract_font,
+ double x,
+ double y,
+ const char *utf8,
+ cairo_glyph_t **glyphs,
+ int *num_glyphs)
+{
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+ uint16_t *utf16;
+ int n16;
+ GCP_RESULTSW gcp_results;
+ unsigned int buffer_size, i;
+ WCHAR *glyph_indices = NULL;
+ int *dx = NULL;
+ cairo_status_t status;
+ double x_pos, y_pos;
+ double x_incr, y_incr;
+ HDC hdc = NULL;
+
+ /* GetCharacterPlacement() returns utf16 instead of glyph indices
+ * for Type 1 fonts. Use GetGlyphIndices for Type 1 fonts. */
+ if (scaled_font->is_type1)
+ return _cairo_win32_scaled_font_type1_text_to_glyphs (scaled_font,
+ x,
+ y,
+ utf8,
+ glyphs,
+ num_glyphs);
+
+ /* Compute a vector in user space along the baseline of length one logical space unit */
+ x_incr = 1;
+ y_incr = 0;
+ cairo_matrix_transform_distance (&scaled_font->base.font_matrix, &x_incr, &y_incr);
+ x_incr /= scaled_font->logical_scale;
+ y_incr /= scaled_font->logical_scale;
+
+ status = _cairo_utf8_to_utf16 (utf8, -1, &utf16, &n16);
+ if (status)
+ return status;
+
+ gcp_results.lStructSize = sizeof (GCP_RESULTS);
+ gcp_results.lpOutString = NULL;
+ gcp_results.lpOrder = NULL;
+ gcp_results.lpCaretPos = NULL;
+ gcp_results.lpClass = NULL;
+
+ buffer_size = MAX (n16 * 1.2, 16); /* Initially guess number of chars plus a few */
+ if (buffer_size > INT_MAX) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto FAIL1;
+ }
+
+ hdc = _get_global_font_dc ();
+ assert (hdc != NULL);
+
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ if (status)
+ goto FAIL1;
+
+ while (TRUE) {
+ free (glyph_indices);
+ glyph_indices = NULL;
+
+ free (dx);
+ dx = NULL;
+
+ glyph_indices = _cairo_malloc_ab (buffer_size, sizeof (WCHAR));
+ dx = _cairo_malloc_ab (buffer_size, sizeof (int));
+ if (!glyph_indices || !dx) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto FAIL2;
+ }
+
+ gcp_results.nGlyphs = buffer_size;
+ gcp_results.lpDx = dx;
+ gcp_results.lpGlyphs = glyph_indices;
+
+ if (!GetCharacterPlacementW (hdc, utf16, n16,
+ 0,
+ &gcp_results,
+ GCP_DIACRITIC | GCP_LIGATE | GCP_GLYPHSHAPE | GCP_REORDER)) {
+ status = _cairo_win32_print_gdi_error ("_cairo_win32_scaled_font_text_to_glyphs");
+ goto FAIL2;
+ }
+
+ if (gcp_results.lpDx && gcp_results.lpGlyphs)
+ break;
+
+ /* Too small a buffer, try again */
+
+ buffer_size += buffer_size / 2;
+ if (buffer_size > INT_MAX) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto FAIL2;
+ }
+ }
+
+ *num_glyphs = gcp_results.nGlyphs;
+ *glyphs = _cairo_malloc_ab (gcp_results.nGlyphs, sizeof (cairo_glyph_t));
+ if (!*glyphs) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto FAIL2;
+ }
+
+ x_pos = x;
+ y_pos = y;
+
+ for (i = 0; i < gcp_results.nGlyphs; i++) {
+ (*glyphs)[i].index = glyph_indices[i];
+ (*glyphs)[i].x = x_pos ;
+ (*glyphs)[i].y = y_pos;
+
+ x_pos += x_incr * dx[i];
+ y_pos += y_incr * dx[i];
+ }
+
+ FAIL2:
+ free (glyph_indices);
+ free (dx);
+
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+
+ FAIL1:
+ free (utf16);
+
+ return status;
+}
+
+static unsigned long
+_cairo_win32_scaled_font_ucs4_to_index (void *abstract_font,
+ uint32_t ucs4)
+{
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+ wchar_t unicode[2];
+ WORD glyph_index;
+ HDC hdc = NULL;
+ cairo_status_t status;
+
+ hdc = _get_global_font_dc ();
+ assert (hdc != NULL);
+
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ if (status)
+ return 0;
+
+ unicode[0] = ucs4;
+ unicode[1] = 0;
+ if (GetGlyphIndicesW (hdc, unicode, 1, &glyph_index, 0) == GDI_ERROR) {
+ _cairo_win32_print_gdi_error ("_cairo_win32_scaled_font_ucs4_to_index:GetGlyphIndicesW");
+ glyph_index = 0;
+ }
+
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+
+ return glyph_index;
+}
+
+static cairo_status_t
+_cairo_win32_scaled_font_set_metrics (cairo_win32_scaled_font_t *scaled_font)
+{
+ cairo_status_t status;
+ cairo_font_extents_t extents;
+
+ TEXTMETRIC metrics;
+ HDC hdc;
+
+ hdc = _get_global_font_dc ();
+ assert (hdc != NULL);
+
+ if (scaled_font->preserve_axes || scaled_font->base.options.hint_metrics == CAIRO_HINT_METRICS_OFF) {
+ /* For 90-degree rotations (including 0), we get the metrics
+ * from the GDI in logical space, then convert back to font space
+ */
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ if (status)
+ return status;
+ GetTextMetrics (hdc, &metrics);
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+
+ extents.ascent = metrics.tmAscent / scaled_font->logical_scale;
+ extents.descent = metrics.tmDescent / scaled_font->logical_scale;
+
+ extents.height = (metrics.tmHeight + metrics.tmExternalLeading) / scaled_font->logical_scale;
+ extents.max_x_advance = metrics.tmMaxCharWidth / scaled_font->logical_scale;
+ extents.max_y_advance = 0;
+
+ } else {
+ /* For all other transformations, we use the design metrics
+ * of the font. The GDI results from GetTextMetrics() on a
+ * transformed font are inexplicably large and we want to
+ * avoid them.
+ */
+ status = _cairo_win32_scaled_font_select_unscaled_font (&scaled_font->base, hdc);
+ if (status)
+ return status;
+ GetTextMetrics (hdc, &metrics);
+ _cairo_win32_scaled_font_done_unscaled_font (&scaled_font->base);
+
+ extents.ascent = (double)metrics.tmAscent / scaled_font->em_square;
+ extents.descent = (double)metrics.tmDescent / scaled_font->em_square;
+ extents.height = (double)(metrics.tmHeight + metrics.tmExternalLeading) / scaled_font->em_square;
+ extents.max_x_advance = (double)(metrics.tmMaxCharWidth) / scaled_font->em_square;
+ extents.max_y_advance = 0;
+
+ }
+
+ scaled_font->is_bitmap = !(metrics.tmPitchAndFamily & TMPF_VECTOR);
+
+ /* Need to determine if this is a Type 1 font for the special
+ * handling in _text_to_glyphs. Unlike TrueType or OpenType,
+ * Type1 fonts do not have a "cmap" table (or any other table).
+ * However GetFontData() will retrieve a Type1 font when
+ * requesting that GetFontData() retrieve data from the start of
+ * the file. This is to distinguish Type1 from stroke fonts such
+ * as "Script" and "Modern". The TMPF_TRUETYPE test is redundant
+ * but improves performance for the most common fonts.
+ */
+ scaled_font->is_type1 = FALSE;
+ if (!(metrics.tmPitchAndFamily & TMPF_TRUETYPE) &&
+ (metrics.tmPitchAndFamily & TMPF_VECTOR))
+ {
+ if ((GetFontData (hdc, CMAP_TAG, 0, NULL, 0) == GDI_ERROR) &&
+ (GetFontData (hdc, 0, 0, NULL, 0) != GDI_ERROR))
+ {
+ scaled_font->is_type1 = TRUE;
+ }
+ }
+
+ return _cairo_scaled_font_set_metrics (&scaled_font->base, &extents);
+}
+
+static cairo_status_t
+_cairo_win32_scaled_font_init_glyph_metrics (cairo_win32_scaled_font_t *scaled_font,
+ cairo_scaled_glyph_t *scaled_glyph)
+{
+ static const MAT2 matrix = { { 0, 1 }, { 0, 0 }, { 0, 0 }, { 0, 1 } };
+ GLYPHMETRICS metrics;
+ cairo_status_t status;
+ cairo_text_extents_t extents;
+ HDC hdc;
+
+ hdc = _get_global_font_dc ();
+ assert (hdc != NULL);
+
+ if (scaled_font->is_bitmap) {
+ /* GetGlyphOutline will not work. Assume that the glyph does not extend outside the font box. */
+ cairo_font_extents_t font_extents;
+ INT width = 0;
+ UINT charIndex = _cairo_scaled_glyph_index (scaled_glyph);
+
+ cairo_scaled_font_extents (&scaled_font->base, &font_extents);
+
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ if (status)
+ return status;
+
+ if (!GetCharWidth32(hdc, charIndex, charIndex, &width)) {
+ status = _cairo_win32_print_gdi_error ("_cairo_win32_scaled_font_init_glyph_metrics:GetCharWidth32");
+ width = 0;
+ }
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+ if (status)
+ return status;
+
+ extents.x_bearing = 0;
+ extents.y_bearing = scaled_font->base.ctm.yy * (-font_extents.ascent / scaled_font->y_scale);
+ extents.width = width / (WIN32_FONT_LOGICAL_SCALE * scaled_font->x_scale);
+ extents.height = scaled_font->base.ctm.yy * (font_extents.ascent + font_extents.descent) / scaled_font->y_scale;
+ extents.x_advance = extents.width;
+ extents.y_advance = 0;
+ } else if (scaled_font->preserve_axes && scaled_font->base.options.hint_metrics != CAIRO_HINT_METRICS_OFF) {
+ /* If we aren't rotating / skewing the axes, then we get the metrics
+ * from the GDI in device space and convert to font space.
+ */
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ if (status)
+ return status;
+
+ if (GetGlyphOutlineW (hdc, _cairo_scaled_glyph_index (scaled_glyph),
+ GGO_METRICS | GGO_GLYPH_INDEX,
+ &metrics, 0, NULL, &matrix) == GDI_ERROR) {
+ memset (&metrics, 0, sizeof (GLYPHMETRICS));
+ } else {
+ if (metrics.gmBlackBoxX > 0 && scaled_font->base.options.antialias != CAIRO_ANTIALIAS_NONE) {
+ /* The bounding box reported by Windows supposedly contains the glyph's "black" area;
+ * however, antialiasing (especially with ClearType) means that the actual image that
+ * needs to be rendered may "bleed" into the adjacent pixels, mainly on the right side.
+ * To avoid clipping the glyphs when drawn by _cairo_surface_fallback_show_glyphs,
+ * for example, or other code that uses glyph extents to determine the area to update,
+ * we add a pixel of "slop" to left side of the nominal "black" area returned by GDI,
+ * and two pixels to the right (as tests show some glyphs bleed into this column).
+ */
+ metrics.gmptGlyphOrigin.x -= 1;
+ metrics.gmBlackBoxX += 3;
+ }
+ }
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+
+ if (scaled_font->swap_axes) {
+ extents.x_bearing = - metrics.gmptGlyphOrigin.y / scaled_font->y_scale;
+ extents.y_bearing = metrics.gmptGlyphOrigin.x / scaled_font->x_scale;
+ extents.width = metrics.gmBlackBoxY / scaled_font->y_scale;
+ extents.height = metrics.gmBlackBoxX / scaled_font->x_scale;
+ extents.x_advance = metrics.gmCellIncY / scaled_font->x_scale;
+ extents.y_advance = metrics.gmCellIncX / scaled_font->y_scale;
+ } else {
+ extents.x_bearing = metrics.gmptGlyphOrigin.x / scaled_font->x_scale;
+ extents.y_bearing = - metrics.gmptGlyphOrigin.y / scaled_font->y_scale;
+ extents.width = metrics.gmBlackBoxX / scaled_font->x_scale;
+ extents.height = metrics.gmBlackBoxY / scaled_font->y_scale;
+ extents.x_advance = metrics.gmCellIncX / scaled_font->x_scale;
+ extents.y_advance = metrics.gmCellIncY / scaled_font->y_scale;
+ }
+
+ if (scaled_font->swap_x) {
+ extents.x_bearing = (- extents.x_bearing - extents.width);
+ extents.x_advance = - extents.x_advance;
+ }
+
+ if (scaled_font->swap_y) {
+ extents.y_bearing = (- extents.y_bearing - extents.height);
+ extents.y_advance = - extents.y_advance;
+ }
+ } else {
+ /* For all other transformations, we use the design metrics
+ * of the font.
+ */
+ status = _cairo_win32_scaled_font_select_unscaled_font (&scaled_font->base, hdc);
+ if (status)
+ return status;
+
+ if (GetGlyphOutlineW (hdc, _cairo_scaled_glyph_index (scaled_glyph),
+ GGO_METRICS | GGO_GLYPH_INDEX,
+ &metrics, 0, NULL, &matrix) == GDI_ERROR) {
+ memset (&metrics, 0, sizeof (GLYPHMETRICS));
+ }
+ _cairo_win32_scaled_font_done_unscaled_font (&scaled_font->base);
+
+ extents.x_bearing = (double)metrics.gmptGlyphOrigin.x / scaled_font->em_square;
+ extents.y_bearing = - (double)metrics.gmptGlyphOrigin.y / scaled_font->em_square;
+ extents.width = (double)metrics.gmBlackBoxX / scaled_font->em_square;
+ extents.height = (double)metrics.gmBlackBoxY / scaled_font->em_square;
+ extents.x_advance = (double)metrics.gmCellIncX / scaled_font->em_square;
+ extents.y_advance = (double)metrics.gmCellIncY / scaled_font->em_square;
+ }
+
+ _cairo_scaled_glyph_set_metrics (scaled_glyph,
+ &scaled_font->base,
+ &extents);
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+/* Not currently used code, but may be useful in the future if we add
+ * back the capability to the scaled font backend interface to get the
+ * actual device space bbox rather than computing it from the
+ * font-space metrics.
+ */
+#if 0
+static cairo_status_t
+_cairo_win32_scaled_font_glyph_bbox (void *abstract_font,
+ const cairo_glyph_t *glyphs,
+ int num_glyphs,
+ cairo_box_t *bbox)
+{
+ static const MAT2 matrix = { { 0, 1 }, { 0, 0 }, { 0, 0 }, { 0, 1 } };
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+ int x1 = 0, x2 = 0, y1 = 0, y2 = 0;
+
+ if (num_glyphs > 0) {
+ HDC hdc;
+ GLYPHMETRICS metrics;
+ cairo_status_t status;
+ int i;
+
+ hdc = _get_global_font_dc ();
+ assert (hdc != NULL);
+
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ if (status)
+ return status;
+
+ for (i = 0; i < num_glyphs; i++) {
+ int x = _cairo_lround (glyphs[i].x);
+ int y = _cairo_lround (glyphs[i].y);
+
+ GetGlyphOutlineW (hdc, glyphs[i].index, GGO_METRICS | GGO_GLYPH_INDEX,
+ &metrics, 0, NULL, &matrix);
+
+ if (i == 0 || x1 > x + metrics.gmptGlyphOrigin.x)
+ x1 = x + metrics.gmptGlyphOrigin.x;
+ if (i == 0 || y1 > y - metrics.gmptGlyphOrigin.y)
+ y1 = y - metrics.gmptGlyphOrigin.y;
+ if (i == 0 || x2 < x + metrics.gmptGlyphOrigin.x + (int)metrics.gmBlackBoxX)
+ x2 = x + metrics.gmptGlyphOrigin.x + (int)metrics.gmBlackBoxX;
+ if (i == 0 || y2 < y - metrics.gmptGlyphOrigin.y + (int)metrics.gmBlackBoxY)
+ y2 = y - metrics.gmptGlyphOrigin.y + (int)metrics.gmBlackBoxY;
+ }
+
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+ }
+
+ bbox->p1.x = _cairo_fixed_from_int (x1);
+ bbox->p1.y = _cairo_fixed_from_int (y1);
+ bbox->p2.x = _cairo_fixed_from_int (x2);
+ bbox->p2.y = _cairo_fixed_from_int (y2);
+
+ return CAIRO_STATUS_SUCCESS;
+}
+#endif
+
+typedef struct {
+ cairo_win32_scaled_font_t *scaled_font;
+ HDC hdc;
+
+ cairo_array_t glyphs;
+ cairo_array_t dx;
+
+ int start_x;
+ int last_x;
+ int last_y;
+} cairo_glyph_state_t;
+
+static void
+_start_glyphs (cairo_glyph_state_t *state,
+ cairo_win32_scaled_font_t *scaled_font,
+ HDC hdc)
+{
+ state->hdc = hdc;
+ state->scaled_font = scaled_font;
+
+ _cairo_array_init (&state->glyphs, sizeof (WCHAR));
+ _cairo_array_init (&state->dx, sizeof (int));
+}
+
+static cairo_status_t
+_flush_glyphs (cairo_glyph_state_t *state)
+{
+ cairo_status_t status;
+ int dx = 0;
+ WCHAR * elements;
+ int * dx_elements;
+
+ status = _cairo_array_append (&state->dx, &dx);
+ if (status)
+ return status;
+
+ elements = _cairo_array_index (&state->glyphs, 0);
+ dx_elements = _cairo_array_index (&state->dx, 0);
+ if (!ExtTextOutW (state->hdc,
+ state->start_x, state->last_y,
+ ETO_GLYPH_INDEX,
+ NULL,
+ elements,
+ state->glyphs.num_elements,
+ dx_elements)) {
+ return _cairo_win32_print_gdi_error ("_flush_glyphs");
+ }
+
+ _cairo_array_truncate (&state->glyphs, 0);
+ _cairo_array_truncate (&state->dx, 0);
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_add_glyph (cairo_glyph_state_t *state,
+ unsigned long index,
+ double device_x,
+ double device_y)
+{
+ cairo_status_t status;
+ double user_x = device_x;
+ double user_y = device_y;
+ WCHAR glyph_index = index;
+ int logical_x, logical_y;
+
+ cairo_matrix_transform_point (&state->scaled_font->device_to_logical, &user_x, &user_y);
+
+ logical_x = _cairo_lround (user_x);
+ logical_y = _cairo_lround (user_y);
+
+ if (state->glyphs.num_elements > 0) {
+ int dx;
+
+ if (logical_y != state->last_y) {
+ status = _flush_glyphs (state);
+ if (status)
+ return status;
+ state->start_x = logical_x;
+ } else {
+ dx = logical_x - state->last_x;
+ status = _cairo_array_append (&state->dx, &dx);
+ if (status)
+ return status;
+ }
+ } else {
+ state->start_x = logical_x;
+ }
+
+ state->last_x = logical_x;
+ state->last_y = logical_y;
+
+ status = _cairo_array_append (&state->glyphs, &glyph_index);
+ if (status)
+ return status;
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_finish_glyphs (cairo_glyph_state_t *state)
+{
+ cairo_status_t status;
+
+ status = _flush_glyphs (state);
+
+ _cairo_array_fini (&state->glyphs);
+ _cairo_array_fini (&state->dx);
+
+ return status;
+}
+
+static cairo_status_t
+_draw_glyphs_on_surface (cairo_win32_surface_t *surface,
+ cairo_win32_scaled_font_t *scaled_font,
+ COLORREF color,
+ int x_offset,
+ int y_offset,
+ const cairo_glyph_t *glyphs,
+ int num_glyphs)
+{
+ cairo_glyph_state_t state;
+ cairo_status_t status, status2;
+ int i;
+
+ if (!SaveDC (surface->dc))
+ return _cairo_win32_print_gdi_error ("_draw_glyphs_on_surface:SaveDC");
+
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, surface->dc);
+ if (status)
+ goto FAIL1;
+
+ SetTextColor (surface->dc, color);
+ SetTextAlign (surface->dc, TA_BASELINE | TA_LEFT);
+ SetBkMode (surface->dc, TRANSPARENT);
+
+ _start_glyphs (&state, scaled_font, surface->dc);
+
+ for (i = 0; i < num_glyphs; i++) {
+ status = _add_glyph (&state, glyphs[i].index,
+ glyphs[i].x - x_offset, glyphs[i].y - y_offset);
+ if (status)
+ goto FAIL2;
+ }
+
+ FAIL2:
+ status2 = _finish_glyphs (&state);
+ if (status == CAIRO_STATUS_SUCCESS)
+ status = status2;
+
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+ FAIL1:
+ RestoreDC (surface->dc, -1);
+
+ return status;
+}
+
+static cairo_int_status_t
+_cairo_win32_scaled_font_glyph_init (void *abstract_font,
+ cairo_scaled_glyph_t *scaled_glyph,
+ cairo_scaled_glyph_info_t info)
+{
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+ cairo_status_t status;
+
+ if ((info & CAIRO_SCALED_GLYPH_INFO_METRICS) != 0) {
+ status = _cairo_win32_scaled_font_init_glyph_metrics (scaled_font, scaled_glyph);
+ if (status)
+ return status;
+ }
+
+ if (info & CAIRO_SCALED_GLYPH_INFO_SURFACE) {
+ status = _cairo_win32_scaled_font_init_glyph_surface (scaled_font, scaled_glyph);
+ if (status)
+ return status;
+ }
+
+ if ((info & CAIRO_SCALED_GLYPH_INFO_PATH) != 0) {
+ status = _cairo_win32_scaled_font_init_glyph_path (scaled_font, scaled_glyph);
+ if (status)
+ return status;
+ }
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+_cairo_win32_scaled_font_load_truetype_table (void *abstract_font,
+ unsigned long tag,
+ long offset,
+ unsigned char *buffer,
+ unsigned long *length)
+{
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+ HDC hdc;
+ cairo_status_t status;
+ DWORD ret;
+
+ hdc = _get_global_font_dc ();
+ assert (hdc != NULL);
+
+ tag = (tag&0x000000ff)<<24 | (tag&0x0000ff00)<<8 | (tag&0x00ff0000)>>8 | (tag&0xff000000)>>24;
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ if (status)
+ return status;
+
+ ret = GetFontData (hdc, tag, offset, buffer, *length);
+ if (ret == GDI_ERROR || (buffer && ret != *length))
+ status = CAIRO_INT_STATUS_UNSUPPORTED;
+ else
+ *length = ret;
+
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+
+ return status;
+}
+
+static cairo_int_status_t
+_cairo_win32_scaled_font_index_to_ucs4 (void *abstract_font,
+ unsigned long index,
+ uint32_t *ucs4)
+{
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+ GLYPHSET *glyph_set;
+ uint16_t *utf16 = NULL;
+ WORD *glyph_indices = NULL;
+ HDC hdc = NULL;
+ int res;
+ unsigned int i, j, num_glyphs;
+ cairo_status_t status;
+
+ hdc = _get_global_font_dc ();
+ assert (hdc != NULL);
+
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ if (status)
+ return status;
+
+ res = GetFontUnicodeRanges(hdc, NULL);
+ if (res == 0) {
+ status = _cairo_win32_print_gdi_error (
+ "_cairo_win32_scaled_font_index_to_ucs4:GetFontUnicodeRanges");
+ goto exit1;
+ }
+
+ glyph_set = malloc (res);
+ if (glyph_set == NULL) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto exit1;
+ }
+
+ res = GetFontUnicodeRanges(hdc, glyph_set);
+ if (res == 0) {
+ status = _cairo_win32_print_gdi_error (
+ "_cairo_win32_scaled_font_index_to_ucs4:GetFontUnicodeRanges");
+ goto exit1;
+ }
+
+ *ucs4 = (uint32_t) -1;
+ for (i = 0; i < glyph_set->cRanges; i++) {
+ num_glyphs = glyph_set->ranges[i].cGlyphs;
+
+ utf16 = _cairo_malloc_ab (num_glyphs + 1, sizeof (uint16_t));
+ if (utf16 == NULL) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto exit1;
+ }
+
+ glyph_indices = _cairo_malloc_ab (num_glyphs + 1, sizeof (WORD));
+ if (glyph_indices == NULL) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto exit2;
+ }
+
+ for (j = 0; j < num_glyphs; j++)
+ utf16[j] = glyph_set->ranges[i].wcLow + j;
+ utf16[j] = 0;
+
+ if (GetGlyphIndicesW (hdc, utf16, num_glyphs, glyph_indices, 0) == GDI_ERROR) {
+ status = _cairo_win32_print_gdi_error (
+ "_cairo_win32_scaled_font_index_to_ucs4:GetGlyphIndicesW");
+ goto exit2;
+ }
+
+ for (j = 0; j < num_glyphs; j++) {
+ if (glyph_indices[j] == index) {
+ *ucs4 = utf16[j];
+ goto exit2;
+ }
+ }
+
+ free (glyph_indices);
+ glyph_indices = NULL;
+ free (utf16);
+ utf16 = NULL;
+ }
+
+exit2:
+ free (glyph_indices);
+ free (utf16);
+ free (glyph_set);
+exit1:
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+
+ return status;
+}
+
+static cairo_bool_t
+_cairo_win32_scaled_font_is_synthetic (void *abstract_font)
+{
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+ cairo_status_t status;
+ int weight;
+ cairo_bool_t bold;
+ cairo_bool_t italic;
+
+ status = _cairo_truetype_get_style (&scaled_font->base,
+ &weight,
+ &bold,
+ &italic);
+ /* If this doesn't work assume it is not synthetic to avoid
+ * unnecessary subsetting fallbacks. */
+ if (status != CAIRO_STATUS_SUCCESS)
+ return FALSE;
+
+ if (scaled_font->logfont.lfWeight != weight ||
+ scaled_font->logfont.lfItalic != italic)
+ return TRUE;
+
+ return FALSE;
+}
+
+static cairo_int_status_t
+_cairo_win32_scaled_font_index_to_glyph_name (void *abstract_font,
+ char **glyph_names,
+ int num_glyph_names,
+ unsigned long glyph_index,
+ unsigned long *glyph_array_index)
+{
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+ int i;
+
+ /* Windows puts .notdef at index 0 then numbers the remaining
+ * glyphs starting from 1 in the order they appear in the font. */
+
+ /* Find the position of .notdef in the list of glyph names. We
+ * only need to do this once per scaled font. */
+ if (! scaled_font->has_type1_notdef_index) {
+ for (i = 0; i < num_glyph_names; i++) {
+ if (strcmp (glyph_names[i], ".notdef") == 0) {
+ scaled_font->type1_notdef_index = i;
+ scaled_font->has_type1_notdef_index = TRUE;
+ break;
+ }
+ }
+ if (! scaled_font->has_type1_notdef_index)
+ return CAIRO_INT_STATUS_UNSUPPORTED;
+ }
+
+ /* Once we know the position of .notdef the position of any glyph
+ * in the font can easily be obtained. */
+ if (glyph_index == 0)
+ *glyph_array_index = scaled_font->type1_notdef_index;
+ else if (glyph_index <= scaled_font->type1_notdef_index)
+ *glyph_array_index = glyph_index - 1;
+ else if (glyph_index < (unsigned long)num_glyph_names)
+ *glyph_array_index = glyph_index;
+ else
+ return CAIRO_INT_STATUS_UNSUPPORTED;
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+_cairo_win32_scaled_font_load_type1_data (void *abstract_font,
+ long offset,
+ unsigned char *buffer,
+ unsigned long *length)
+{
+ cairo_win32_scaled_font_t *scaled_font = abstract_font;
+
+ if (! scaled_font->is_type1)
+ return CAIRO_INT_STATUS_UNSUPPORTED;
+
+ /* Using the tag 0 retrieves the entire font file. This works with
+ * Type 1 fonts as well as TTF/OTF fonts. */
+ return _cairo_win32_scaled_font_load_truetype_table (scaled_font,
+ 0,
+ offset,
+ buffer,
+ length);
+}
+
+static cairo_surface_t *
+_compute_mask (cairo_surface_t *surface,
+ int quality)
+{
+ cairo_image_surface_t *glyph;
+ cairo_image_surface_t *mask;
+ int i, j;
+
+ glyph = (cairo_image_surface_t *)cairo_surface_map_to_image (surface, NULL);
+ if (unlikely (glyph->base.status))
+ return &glyph->base;
+
+ if (quality == CLEARTYPE_QUALITY) {
+ /* Duplicate the green channel of a 4-channel mask into the
+ * alpha channel, then invert the whole mask.
+ */
+ mask = (cairo_image_surface_t *)
+ cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+ glyph->width, glyph->height);
+ if (likely (mask->base.status == CAIRO_STATUS_SUCCESS)) {
+ for (i = 0; i < glyph->height; i++) {
+ uint32_t *p = (uint32_t *) (glyph->data + i * glyph->stride);
+ uint32_t *q = (uint32_t *) (mask->data + i * mask->stride);
+
+ for (j = 0; j < glyph->width; j++) {
+ *q++ = 0xffffffff ^ (*p | ((*p & 0x0000ff00) << 16));
+ p++;
+ }
+ }
+ }
+ } else {
+ /* Compute an alpha-mask from a using the green channel of a
+ * (presumed monochrome) RGB24 image.
+ */
+ mask = (cairo_image_surface_t *)
+ cairo_image_surface_create (CAIRO_FORMAT_A8,
+ glyph->width, glyph->height);
+ if (likely (mask->base.status == CAIRO_STATUS_SUCCESS)) {
+ for (i = 0; i < glyph->height; i++) {
+ uint32_t *p = (uint32_t *) (glyph->data + i * glyph->stride);
+ uint8_t *q = (uint8_t *) (mask->data + i * mask->stride);
+
+ for (j = 0; j < glyph->width; j++)
+ *q++ = 255 - ((*p++ & 0x0000ff00) >> 8);
+ }
+ }
+ }
+
+ cairo_surface_unmap_image (surface, &glyph->base);
+ return &mask->base;
+}
+
+static cairo_status_t
+_cairo_win32_scaled_font_init_glyph_surface (cairo_win32_scaled_font_t *scaled_font,
+ cairo_scaled_glyph_t *scaled_glyph)
+{
+ cairo_status_t status;
+ cairo_glyph_t glyph;
+ cairo_surface_t *surface;
+ cairo_surface_t *image;
+ int width, height;
+ int x1, y1, x2, y2;
+
+ x1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.x);
+ y1 = _cairo_fixed_integer_floor (scaled_glyph->bbox.p1.y);
+ x2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.x);
+ y2 = _cairo_fixed_integer_ceil (scaled_glyph->bbox.p2.y);
+ width = x2 - x1;
+ height = y2 - y1;
+
+ surface = cairo_win32_surface_create_with_dib (CAIRO_FORMAT_RGB24,
+ width, height);
+ status = _cairo_surface_paint (surface, CAIRO_OPERATOR_SOURCE,
+ &_cairo_pattern_white.base, NULL);
+ if (status)
+ goto FAIL;
+
+ glyph.index = _cairo_scaled_glyph_index (scaled_glyph);
+ glyph.x = -x1;
+ glyph.y = -y1;
+ status = _draw_glyphs_on_surface (to_win32_surface (surface),
+ scaled_font, RGB(0,0,0),
+ 0, 0, &glyph, 1);
+ if (status)
+ goto FAIL;
+
+ image = _compute_mask (surface, scaled_font->quality);
+ status = image->status;
+ if (status)
+ goto FAIL;
+
+ cairo_surface_set_device_offset (image, -x1, -y1);
+ _cairo_scaled_glyph_set_surface (scaled_glyph,
+ &scaled_font->base,
+ (cairo_image_surface_t *) image);
+
+ FAIL:
+ cairo_surface_destroy (surface);
+
+ return status;
+}
+
+static void
+_cairo_win32_transform_FIXED_to_fixed (cairo_matrix_t *matrix,
+ FIXED Fx, FIXED Fy,
+ cairo_fixed_t *fx, cairo_fixed_t *fy)
+{
+ double x = Fx.value + Fx.fract / 65536.0;
+ double y = Fy.value + Fy.fract / 65536.0;
+ cairo_matrix_transform_point (matrix, &x, &y);
+ *fx = _cairo_fixed_from_double (x);
+ *fy = _cairo_fixed_from_double (y);
+}
+
+static cairo_status_t
+_cairo_win32_scaled_font_init_glyph_path (cairo_win32_scaled_font_t *scaled_font,
+ cairo_scaled_glyph_t *scaled_glyph)
+{
+ static const MAT2 matrix = { { 0, 1 }, { 0, 0 }, { 0, 0 }, { 0, -1 } };
+ cairo_status_t status;
+ GLYPHMETRICS metrics;
+ HDC hdc;
+ DWORD bytesGlyph;
+ unsigned char *buffer, *ptr;
+ cairo_path_fixed_t *path;
+ cairo_matrix_t transform;
+ cairo_fixed_t x, y;
+
+ if (scaled_font->is_bitmap)
+ return CAIRO_INT_STATUS_UNSUPPORTED;
+
+ hdc = _get_global_font_dc ();
+ assert (hdc != NULL);
+
+ path = _cairo_path_fixed_create ();
+ if (!path)
+ return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+ if (scaled_font->base.options.hint_style == CAIRO_HINT_STYLE_NONE) {
+ status = _cairo_win32_scaled_font_select_unscaled_font (&scaled_font->base, hdc);
+ transform = scaled_font->base.scale;
+ cairo_matrix_scale (&transform, 1.0/scaled_font->em_square, 1.0/scaled_font->em_square);
+ } else {
+ status = cairo_win32_scaled_font_select_font (&scaled_font->base, hdc);
+ cairo_matrix_init_identity(&transform);
+ }
+ if (status)
+ goto CLEANUP_PATH;
+
+ bytesGlyph = GetGlyphOutlineW (hdc, _cairo_scaled_glyph_index (scaled_glyph),
+ GGO_NATIVE | GGO_GLYPH_INDEX,
+ &metrics, 0, NULL, &matrix);
+
+ if (bytesGlyph == GDI_ERROR) {
+ status = _cairo_win32_print_gdi_error ("_cairo_win32_scaled_font_glyph_path");
+ goto CLEANUP_FONT;
+ }
+
+ ptr = buffer = malloc (bytesGlyph);
+ if (!buffer) {
+ status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+ goto CLEANUP_FONT;
+ }
+
+ if (GetGlyphOutlineW (hdc, _cairo_scaled_glyph_index (scaled_glyph),
+ GGO_NATIVE | GGO_GLYPH_INDEX,
+ &metrics, bytesGlyph, buffer, &matrix) == GDI_ERROR) {
+ status = _cairo_win32_print_gdi_error ("_cairo_win32_scaled_font_glyph_path");
+ goto CLEANUP_BUFFER;
+ }
+
+ while (ptr < buffer + bytesGlyph) {
+ TTPOLYGONHEADER *header = (TTPOLYGONHEADER *)ptr;
+ unsigned char *endPoly = ptr + header->cb;
+
+ ptr += sizeof (TTPOLYGONHEADER);
+
+ _cairo_win32_transform_FIXED_to_fixed (&transform,
+ header->pfxStart.x,
+ header->pfxStart.y,
+ &x, &y);
+ status = _cairo_path_fixed_move_to (path, x, y);
+ if (status)
+ goto CLEANUP_BUFFER;
+
+ while (ptr < endPoly) {
+ TTPOLYCURVE *curve = (TTPOLYCURVE *)ptr;
+ POINTFX *points = curve->apfx;
+ int i;
+ switch (curve->wType) {
+ case TT_PRIM_LINE:
+ for (i = 0; i < curve->cpfx; i++) {
+ _cairo_win32_transform_FIXED_to_fixed (&transform,
+ points[i].x,
+ points[i].y,
+ &x, &y);
+ status = _cairo_path_fixed_line_to (path, x, y);
+ if (status)
+ goto CLEANUP_BUFFER;
+ }
+ break;
+ case TT_PRIM_QSPLINE:
+ for (i = 0; i < curve->cpfx - 1; i++) {
+ cairo_fixed_t p1x, p1y, p2x, p2y, cx, cy, c1x, c1y, c2x, c2y;
+ if (! _cairo_path_fixed_get_current_point (path, &p1x, &p1y))
+ goto CLEANUP_BUFFER;
+ _cairo_win32_transform_FIXED_to_fixed (&transform,
+ points[i].x,
+ points[i].y,
+ &cx, &cy);
+
+ if (i + 1 == curve->cpfx - 1) {
+ _cairo_win32_transform_FIXED_to_fixed (&transform,
+ points[i + 1].x,
+ points[i + 1].y,
+ &p2x, &p2y);
+ } else {
+ /* records with more than one curve use interpolation for
+ control points, per http://support.microsoft.com/kb/q87115/ */
+ _cairo_win32_transform_FIXED_to_fixed (&transform,
+ points[i + 1].x,
+ points[i + 1].y,
+ &x, &y);
+ p2x = (cx + x) / 2;
+ p2y = (cy + y) / 2;
+ }
+
+ c1x = 2 * cx / 3 + p1x / 3;
+ c1y = 2 * cy / 3 + p1y / 3;
+ c2x = 2 * cx / 3 + p2x / 3;
+ c2y = 2 * cy / 3 + p2y / 3;
+
+ status = _cairo_path_fixed_curve_to (path, c1x, c1y, c2x, c2y, p2x, p2y);
+ if (status)
+ goto CLEANUP_BUFFER;
+ }
+ break;
+ case TT_PRIM_CSPLINE:
+ for (i = 0; i < curve->cpfx - 2; i += 2) {
+ cairo_fixed_t x1, y1, x2, y2;
+ _cairo_win32_transform_FIXED_to_fixed (&transform,
+ points[i].x,
+ points[i].y,
+ &x, &y);
+ _cairo_win32_transform_FIXED_to_fixed (&transform,
+ points[i + 1].x,
+ points[i + 1].y,
+ &x1, &y1);
+ _cairo_win32_transform_FIXED_to_fixed (&transform,
+ points[i + 2].x,
+ points[i + 2].y,
+ &x2, &y2);
+ status = _cairo_path_fixed_curve_to (path, x, y, x1, y1, x2, y2);
+ if (status)
+ goto CLEANUP_BUFFER;
+ }
+ break;
+ }
+ ptr += sizeof(TTPOLYCURVE) + sizeof (POINTFX) * (curve->cpfx - 1);
+ }
+ status = _cairo_path_fixed_close_path (path);
+ if (status)
+ goto CLEANUP_BUFFER;
+ }
+
+ _cairo_scaled_glyph_set_path (scaled_glyph,
+ &scaled_font->base,
+ path);
+
+ CLEANUP_BUFFER:
+ free (buffer);
+
+ CLEANUP_FONT:
+ if (scaled_font->base.options.hint_style == CAIRO_HINT_STYLE_NONE)
+ _cairo_win32_scaled_font_done_unscaled_font (&scaled_font->base);
+ else
+ cairo_win32_scaled_font_done_font (&scaled_font->base);
+
+ CLEANUP_PATH:
+ if (status != CAIRO_STATUS_SUCCESS)
+ _cairo_path_fixed_destroy (path);
+
+ return status;
+}
+
+const cairo_scaled_font_backend_t _cairo_win32_scaled_font_backend = {
+ CAIRO_FONT_TYPE_WIN32,
+ _cairo_win32_scaled_font_fini,
+ _cairo_win32_scaled_font_glyph_init,
+ NULL, /* _cairo_win32_scaled_font_text_to_glyphs, FIXME */
+ _cairo_win32_scaled_font_ucs4_to_index,
+ _cairo_win32_scaled_font_load_truetype_table,
+ _cairo_win32_scaled_font_index_to_ucs4,
+ _cairo_win32_scaled_font_is_synthetic,
+ _cairo_win32_scaled_font_index_to_glyph_name,
+ _cairo_win32_scaled_font_load_type1_data
+};
+
+/* #cairo_win32_font_face_t */
+
+typedef struct _cairo_win32_font_face cairo_win32_font_face_t;
+
+/* If hfont is non-%NULL then logfont->lfHeight must be -S for some S,
+ * logfont->lfWidth, logfont->lfEscapement, logfont->lfOrientation must
+ * all be 0, and hfont is the result of calling CreateFontIndirectW on
+ * logfont.
+ */
+struct _cairo_win32_font_face {
+ cairo_font_face_t base;
+ LOGFONTW logfont;
+ HFONT hfont;
+};
+
+/* We maintain a hash table from LOGFONT,HFONT => #cairo_font_face_t.
+ * The primary purpose of this mapping is to provide unique
+ * #cairo_font_face_t values so that our cache and mapping from
+ * #cairo_font_face_t => #cairo_scaled_font_t works. Once the
+ * corresponding #cairo_font_face_t objects fall out of downstream
+ * caches, we don't need them in this hash table anymore.
+ *
+ * Modifications to this hash table are protected by
+ * _cairo_win32_font_face_mutex.
+ */
+
+static cairo_hash_table_t *cairo_win32_font_face_hash_table = NULL;
+
+static int
+_cairo_win32_font_face_keys_equal (const void *key_a,
+ const void *key_b);
+
+static void
+_cairo_win32_font_face_hash_table_destroy (void)
+{
+ cairo_hash_table_t *hash_table;
+
+ /* We manually acquire the lock rather than calling
+ * _cairo_win32_font_face_hash_table_lock simply to avoid creating
+ * the table only to destroy it again. */
+ CAIRO_MUTEX_LOCK (_cairo_win32_font_face_mutex);
+ hash_table = cairo_win32_font_face_hash_table;
+ cairo_win32_font_face_hash_table = NULL;
+ CAIRO_MUTEX_UNLOCK (_cairo_win32_font_face_mutex);
+
+ if (hash_table != NULL)
+ _cairo_hash_table_destroy (hash_table);
+}
+
+static cairo_hash_table_t *
+_cairo_win32_font_face_hash_table_lock (void)
+{
+ CAIRO_MUTEX_LOCK (_cairo_win32_font_face_mutex);
+
+ if (unlikely (cairo_win32_font_face_hash_table == NULL))
+ {
+ cairo_win32_font_face_hash_table =
+ _cairo_hash_table_create (_cairo_win32_font_face_keys_equal);
+
+ if (unlikely (cairo_win32_font_face_hash_table == NULL)) {
+ CAIRO_MUTEX_UNLOCK (_cairo_win32_font_face_mutex);
+ _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+ return NULL;
+ }
+ }
+
+ return cairo_win32_font_face_hash_table;
+}
+
+static void
+_cairo_win32_font_face_hash_table_unlock (void)
+{
+ CAIRO_MUTEX_UNLOCK (_cairo_win32_font_face_mutex);
+}
+
+static cairo_bool_t
+_cairo_win32_font_face_destroy (void *abstract_face)
+{
+ cairo_win32_font_face_t *font_face = abstract_face;
+ cairo_hash_table_t *hash_table;
+
+ hash_table = _cairo_win32_font_face_hash_table_lock ();
+ /* All created objects must have been mapped in the hash table. */
+ assert (hash_table != NULL);
+
+ if (! _cairo_reference_count_dec_and_test (&font_face->base.ref_count)) {
+ /* somebody recreated the font whilst we waited for the lock */
+ _cairo_win32_font_face_hash_table_unlock ();
+ return FALSE;
+ }
+
+ /* Font faces in SUCCESS status are guaranteed to be in the
+ * hashtable. Font faces in an error status are removed from the
+ * hashtable if they are found during a lookup, thus they should
+ * only be removed if they are in the hashtable. */
+ if (likely (font_face->base.status == CAIRO_STATUS_SUCCESS) ||
+ _cairo_hash_table_lookup (hash_table, &font_face->base.hash_entry) == font_face)
+ _cairo_hash_table_remove (hash_table, &font_face->base.hash_entry);
+
+ _cairo_win32_font_face_hash_table_unlock ();
+ return TRUE;
+}
+
+static void
+_cairo_win32_font_face_init_key (cairo_win32_font_face_t *key,
+ LOGFONTW *logfont,
+ HFONT font)
+{
+ unsigned long hash = _CAIRO_HASH_INIT_VALUE;
+
+ key->logfont = *logfont;
+ key->hfont = font;
+
+ hash = _cairo_hash_bytes (0, logfont->lfFaceName, 2*wcslen(logfont->lfFaceName));
+ hash = _cairo_hash_bytes (hash, &logfont->lfWeight, sizeof(logfont->lfWeight));
+ hash = _cairo_hash_bytes (hash, &logfont->lfItalic, sizeof(logfont->lfItalic));
+
+ key->base.hash_entry.hash = hash;
+}
+
+static int
+_cairo_win32_font_face_keys_equal (const void *key_a,
+ const void *key_b)
+{
+ const cairo_win32_font_face_t *face_a = key_a;
+ const cairo_win32_font_face_t *face_b = key_b;
+
+ if (face_a->logfont.lfWeight == face_b->logfont.lfWeight &&
+ face_a->logfont.lfItalic == face_b->logfont.lfItalic &&
+ face_a->logfont.lfUnderline == face_b->logfont.lfUnderline &&
+ face_a->logfont.lfStrikeOut == face_b->logfont.lfStrikeOut &&
+ face_a->logfont.lfCharSet == face_b->logfont.lfCharSet &&
+ face_a->logfont.lfOutPrecision == face_b->logfont.lfOutPrecision &&
+ face_a->logfont.lfClipPrecision == face_b->logfont.lfClipPrecision &&
+ face_a->logfont.lfPitchAndFamily == face_b->logfont.lfPitchAndFamily &&
+ (wcscmp (face_a->logfont.lfFaceName, face_b->logfont.lfFaceName) == 0))
+ return TRUE;
+ else
+ return FALSE;
+}
+
+/* implement the platform-specific interface */
+
+static cairo_bool_t
+_is_scale (const cairo_matrix_t *matrix, double scale)
+{
+ return matrix->xx == scale && matrix->yy == scale &&
+ matrix->xy == 0. && matrix->yx == 0. &&
+ matrix->x0 == 0. && matrix->y0 == 0.;
+}
+
+static cairo_status_t
+_cairo_win32_font_face_scaled_font_create (void *abstract_face,
+ const cairo_matrix_t *font_matrix,
+ const cairo_matrix_t *ctm,
+ const cairo_font_options_t *options,
+ cairo_scaled_font_t **font)
+{
+ HFONT hfont = NULL;
+
+ cairo_win32_font_face_t *font_face = abstract_face;
+
+ if (font_face->hfont) {
+ /* Check whether it's OK to go ahead and use the font-face's HFONT. */
+ if (_is_scale (ctm, 1.) &&
+ _is_scale (font_matrix, -font_face->logfont.lfHeight)) {
+ hfont = font_face->hfont;
+ }
+ }
+
+ return _win32_scaled_font_create (&font_face->logfont,
+ hfont,
+ &font_face->base,
+ font_matrix, ctm, options,
+ font);
+}
+
+const cairo_font_face_backend_t _cairo_win32_font_face_backend = {
+ CAIRO_FONT_TYPE_WIN32,
+ _cairo_win32_font_face_create_for_toy,
+ _cairo_win32_font_face_destroy,
+ _cairo_win32_font_face_scaled_font_create
+};
+
+/**
+ * cairo_win32_font_face_create_for_logfontw_hfont:
+ * @logfont: A #LOGFONTW structure specifying the font to use.
+ * If @font is %NULL then the lfHeight, lfWidth, lfOrientation and lfEscapement
+ * fields of this structure are ignored. Otherwise lfWidth, lfOrientation and
+ * lfEscapement must be zero.
+ * @font: An #HFONT that can be used when the font matrix is a scale by
+ * -lfHeight and the CTM is identity.
+ *
+ * Creates a new font for the Win32 font backend based on a
+ * #LOGFONT. This font can then be used with
+ * cairo_set_font_face() or cairo_scaled_font_create().
+ * The #cairo_scaled_font_t
+ * returned from cairo_scaled_font_create() is also for the Win32 backend
+ * and can be used with functions such as cairo_win32_scaled_font_select_font().
+ *
+ * Return value: a newly created #cairo_font_face_t. Free with
+ * cairo_font_face_destroy() when you are done using it.
+ *
+ * Since: 1.6
+ **/
+cairo_font_face_t *
+cairo_win32_font_face_create_for_logfontw_hfont (LOGFONTW *logfont, HFONT font)
+{
+ cairo_win32_font_face_t *font_face, key;
+ cairo_hash_table_t *hash_table;
+ cairo_status_t status;
+
+ hash_table = _cairo_win32_font_face_hash_table_lock ();
+ if (unlikely (hash_table == NULL)) {
+ _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+ return (cairo_font_face_t *)&_cairo_font_face_nil;
+ }
+
+ _cairo_win32_font_face_init_key (&key, logfont, font);
+
+ /* Return existing unscaled font if it exists in the hash table. */
+ font_face = _cairo_hash_table_lookup (hash_table,
+ &key.base.hash_entry);
+ if (font_face != NULL) {
+ if (font_face->base.status == CAIRO_STATUS_SUCCESS) {
+ cairo_font_face_reference (&font_face->base);
+ _cairo_win32_font_face_hash_table_unlock ();
+ return &font_face->base;
+ }
+
+ /* remove the bad font from the hash table */
+ _cairo_hash_table_remove (hash_table, &font_face->base.hash_entry);
+ }
+
+ /* Otherwise create it and insert into hash table. */
+ font_face = malloc (sizeof (cairo_win32_font_face_t));
+ if (!font_face) {
+ _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+ goto FAIL;
+ }
+
+ _cairo_win32_font_face_init_key (font_face, logfont, font);
+ _cairo_font_face_init (&font_face->base, &_cairo_win32_font_face_backend);
+
+ assert (font_face->base.hash_entry.hash == key.base.hash_entry.hash);
+ status = _cairo_hash_table_insert (hash_table,
+ &font_face->base.hash_entry);
+ if (unlikely (status))
+ goto FAIL;
+
+ _cairo_win32_font_face_hash_table_unlock ();
+ return &font_face->base;
+
+FAIL:
+ _cairo_win32_font_face_hash_table_unlock ();
+ return (cairo_font_face_t *)&_cairo_font_face_nil;
+}
+
+/**
+ * cairo_win32_font_face_create_for_logfontw:
+ * @logfont: A #LOGFONTW structure specifying the font to use.
+ * The lfHeight, lfWidth, lfOrientation and lfEscapement
+ * fields of this structure are ignored.
+ *
+ * Creates a new font for the Win32 font backend based on a
+ * #LOGFONT. This font can then be used with
+ * cairo_set_font_face() or cairo_scaled_font_create().
+ * The #cairo_scaled_font_t
+ * returned from cairo_scaled_font_create() is also for the Win32 backend
+ * and can be used with functions such as cairo_win32_scaled_font_select_font().
+ *
+ * Return value: a newly created #cairo_font_face_t. Free with
+ * cairo_font_face_destroy() when you are done using it.
+ *
+ * Since: 1.0
+ **/
+cairo_font_face_t *
+cairo_win32_font_face_create_for_logfontw (LOGFONTW *logfont)
+{
+ return cairo_win32_font_face_create_for_logfontw_hfont (logfont, NULL);
+}
+
+/**
+ * cairo_win32_font_face_create_for_hfont:
+ * @font: An #HFONT structure specifying the font to use.
+ *
+ * Creates a new font for the Win32 font backend based on a
+ * #HFONT. This font can then be used with
+ * cairo_set_font_face() or cairo_scaled_font_create().
+ * The #cairo_scaled_font_t
+ * returned from cairo_scaled_font_create() is also for the Win32 backend
+ * and can be used with functions such as cairo_win32_scaled_font_select_font().
+ *
+ * Return value: a newly created #cairo_font_face_t. Free with
+ * cairo_font_face_destroy() when you are done using it.
+ *
+ * Since: 1.2
+ **/
+cairo_font_face_t *
+cairo_win32_font_face_create_for_hfont (HFONT font)
+{
+ LOGFONTW logfont;
+ GetObjectW (font, sizeof(logfont), &logfont);
+
+ if (logfont.lfEscapement != 0 || logfont.lfOrientation != 0 ||
+ logfont.lfWidth != 0) {
+ /* We can't use this font because that optimization requires that
+ * lfEscapement, lfOrientation and lfWidth be zero. */
+ font = NULL;
+ }
+
+ return cairo_win32_font_face_create_for_logfontw_hfont (&logfont, font);
+}
+
+static cairo_bool_t
+_cairo_scaled_font_is_win32 (cairo_scaled_font_t *scaled_font)
+{
+ return scaled_font->backend == &_cairo_win32_scaled_font_backend;
+}
+
+/**
+ * cairo_win32_scaled_font_select_font:
+ * @scaled_font: A #cairo_scaled_font_t from the Win32 font backend. Such an
+ * object can be created with cairo_win32_font_face_create_for_logfontw().
+ * @hdc: a device context
+ *
+ * Selects the font into the given device context and changes the
+ * map mode and world transformation of the device context to match
+ * that of the font. This function is intended for use when using
+ * layout APIs such as Uniscribe to do text layout with the
+ * cairo font. After finishing using the device context, you must call
+ * cairo_win32_scaled_font_done_font() to release any resources allocated
+ * by this function.
+ *
+ * See cairo_win32_scaled_font_get_metrics_factor() for converting logical
+ * coordinates from the device context to font space.
+ *
+ * Normally, calls to SaveDC() and RestoreDC() would be made around
+ * the use of this function to preserve the original graphics state.
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if the operation succeeded.
+ * otherwise an error such as %CAIRO_STATUS_NO_MEMORY and
+ * the device context is unchanged.
+ *
+ * Since: 1.0
+ **/
+cairo_status_t
+cairo_win32_scaled_font_select_font (cairo_scaled_font_t *scaled_font,
+ HDC hdc)
+{
+ cairo_status_t status;
+ HFONT hfont;
+ HFONT old_hfont = NULL;
+ int old_mode;
+
+ if (! _cairo_scaled_font_is_win32 (scaled_font)) {
+ return _cairo_error (CAIRO_STATUS_FONT_TYPE_MISMATCH);
+ }
+
+ if (scaled_font->status)
+ return scaled_font->status;
+
+ status = _win32_scaled_font_get_scaled_hfont ((cairo_win32_scaled_font_t *)scaled_font, &hfont);
+ if (status)
+ return status;
+
+ old_hfont = SelectObject (hdc, hfont);
+ if (!old_hfont)
+ return _cairo_win32_print_gdi_error ("cairo_win32_scaled_font_select_font:SelectObject");
+
+ old_mode = SetGraphicsMode (hdc, GM_ADVANCED);
+ if (!old_mode) {
+ status = _cairo_win32_print_gdi_error ("cairo_win32_scaled_font_select_font:SetGraphicsMode");
+ SelectObject (hdc, old_hfont);
+ return status;
+ }
+
+ status = _win32_scaled_font_set_world_transform ((cairo_win32_scaled_font_t *)scaled_font, hdc);
+ if (status) {
+ SetGraphicsMode (hdc, old_mode);
+ SelectObject (hdc, old_hfont);
+ return status;
+ }
+
+ SetMapMode (hdc, MM_TEXT);
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+/**
+ * cairo_win32_scaled_font_done_font:
+ * @scaled_font: A scaled font from the Win32 font backend.
+ *
+ * Releases any resources allocated by cairo_win32_scaled_font_select_font()
+ *
+ * Since: 1.0
+ **/
+void
+cairo_win32_scaled_font_done_font (cairo_scaled_font_t *scaled_font)
+{
+ if (! _cairo_scaled_font_is_win32 (scaled_font)) {
+ _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH);
+ }
+}
+
+/**
+ * cairo_win32_scaled_font_get_metrics_factor:
+ * @scaled_font: a scaled font from the Win32 font backend
+ *
+ * Gets a scale factor between logical coordinates in the coordinate
+ * space used by cairo_win32_scaled_font_select_font() (that is, the
+ * coordinate system used by the Windows functions to return metrics) and
+ * font space coordinates.
+ *
+ * Return value: factor to multiply logical units by to get font space
+ * coordinates.
+ *
+ * Since: 1.0
+ **/
+double
+cairo_win32_scaled_font_get_metrics_factor (cairo_scaled_font_t *scaled_font)
+{
+ if (! _cairo_scaled_font_is_win32 (scaled_font)) {
+ _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH);
+ return 1.;
+ }
+ return 1. / ((cairo_win32_scaled_font_t *)scaled_font)->logical_scale;
+}
+
+/**
+ * cairo_win32_scaled_font_get_logical_to_device:
+ * @scaled_font: a scaled font from the Win32 font backend
+ * @logical_to_device: matrix to return
+ *
+ * Gets the transformation mapping the logical space used by @scaled_font
+ * to device space.
+ *
+ * Since: 1.4
+ **/
+void
+cairo_win32_scaled_font_get_logical_to_device (cairo_scaled_font_t *scaled_font,
+ cairo_matrix_t *logical_to_device)
+{
+ cairo_win32_scaled_font_t *win_font = (cairo_win32_scaled_font_t *)scaled_font;
+ if (! _cairo_scaled_font_is_win32 (scaled_font)) {
+ _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH);
+ cairo_matrix_init_identity (logical_to_device);
+ return;
+ }
+ *logical_to_device = win_font->logical_to_device;
+}
+
+/**
+ * cairo_win32_scaled_font_get_device_to_logical:
+ * @scaled_font: a scaled font from the Win32 font backend
+ * @device_to_logical: matrix to return
+ *
+ * Gets the transformation mapping device space to the logical space
+ * used by @scaled_font.
+ *
+ * Since: 1.4
+ **/
+void
+cairo_win32_scaled_font_get_device_to_logical (cairo_scaled_font_t *scaled_font,
+ cairo_matrix_t *device_to_logical)
+{
+ cairo_win32_scaled_font_t *win_font = (cairo_win32_scaled_font_t *)scaled_font;
+ if (! _cairo_scaled_font_is_win32 (scaled_font)) {
+ _cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH);
+ cairo_matrix_init_identity (device_to_logical);
+ return;
+ }
+ *device_to_logical = win_font->device_to_logical;
+}
+
+void
+_cairo_win32_font_reset_static_data (void)
+{
+ _cairo_win32_font_face_hash_table_destroy ();
+}