[pango/simple-fontmap: 6/11] pangocairo: handle PangoHbFont
- From: Matthias Clasen <matthiasc src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [pango/simple-fontmap: 6/11] pangocairo: handle PangoHbFont
- Date: Mon, 25 Oct 2021 09:55:25 +0000 (UTC)
commit a748b6d31cd0818cbea1b088d0be99d2703783b3
Author: Matthias Clasen <mclasen redhat com>
Date: Tue Aug 31 07:48:14 2021 -0400
pangocairo: handle PangoHbFont
Basic rendering is working fine with this.
pango/pangocairo-fc.h | 3 +
pango/pangocairo-fcfont.c | 4 +-
pango/pangocairo-font.c | 143 ++++++++++++++++++++++++++++++++++++++++++---
pango/pangocairo-private.h | 19 ++----
pango/pangocairo-render.c | 6 +-
5 files changed, 151 insertions(+), 24 deletions(-)
---
diff --git a/pango/pangocairo-fc.h b/pango/pangocairo-fc.h
index 36529569..9c1956d3 100644
--- a/pango/pangocairo-fc.h
+++ b/pango/pangocairo-fc.h
@@ -42,6 +42,9 @@ typedef struct _PangoCairoFcFontMap PangoCairoFcFontMap;
PANGO_AVAILABLE_IN_ALL
GType pango_cairo_fc_font_map_get_type (void) G_GNUC_CONST;
+PANGO_AVAILABLE_IN_1_50
+cairo_scaled_font_t * pango_cairo_hb_font_get_scaled_font (PangoFont *font);
+
G_END_DECLS
#endif /* __PANGOCAIRO_FC_H__ */
diff --git a/pango/pangocairo-fcfont.c b/pango/pangocairo-fcfont.c
index 85cc45c8..23e352a2 100644
--- a/pango/pangocairo-fcfont.c
+++ b/pango/pangocairo-fcfont.c
@@ -32,8 +32,10 @@
#include "pangocairo-fc-private.h"
#include "pangofc-private.h"
#include "pango-impl-utils.h"
+#include "pango-hbfont-private.h"
+#include "pango-hbface-private.h"
-#include <hb-ot.h>
+#include <hb-ft.h>
#include <freetype/ftmm.h>
#define PANGO_TYPE_CAIRO_FC_FONT (pango_cairo_fc_font_get_type ())
diff --git a/pango/pangocairo-font.c b/pango/pangocairo-font.c
index 15c5be4a..dc618fb4 100644
--- a/pango/pangocairo-font.c
+++ b/pango/pangocairo-font.c
@@ -28,6 +28,17 @@
#include "pangocairo-private.h"
#include "pango-font-private.h"
#include "pango-impl-utils.h"
+#include "pango-hbfont-private.h"
+#include "pango-hbface-private.h"
+#include "pangocairo-fc.h"
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wundef"
+#include <cairo-ft.h>
+#pragma GCC diagnostic pop
+
+#include <hb-ft.h>
+#include <freetype/ftmm.h>
#define PANGO_CAIRO_FONT_PRIVATE(font) \
((PangoCairoFontPrivate *) \
@@ -60,6 +71,51 @@ _pango_cairo_font_private_scaled_font_data_destroy (PangoCairoFontPrivateScaledF
}
}
+static FT_Library ft_library;
+
+static cairo_font_face_t *
+create_font_face_for_hb_font (PangoHbFont *font)
+{
+ unsigned int blob_length;
+ const char *blob_data;
+ FT_Face ft_face;
+ hb_font_t *hb_font;
+ unsigned int num_coords;
+ const int *coords;
+ cairo_font_face_t *cairo_face;
+ static const cairo_user_data_key_t key;
+
+ if (!ft_library)
+ FT_Init_FreeType (&ft_library);
+
+ blob_data = hb_blob_get_data (font->face->blob, &blob_length);
+
+ if (FT_New_Memory_Face (ft_library,
+ (const FT_Byte *) blob_data,
+ blob_length,
+ font->face->index,
+ &ft_face))
+ g_error ("FT_New_Memory_Face failed");
+
+ hb_font = pango_font_get_hb_font (PANGO_FONT (font));
+ coords = hb_font_get_var_coords_normalized (hb_font, &num_coords);
+ if (num_coords > 0)
+ {
+ FT_Fixed *ft_coords = (FT_Fixed *) g_alloca (num_coords * sizeof (FT_Fixed));
+
+ for (unsigned int i = 0; i < num_coords; i++)
+ ft_coords[i] = coords[i] << 2;
+
+ FT_Set_Var_Blend_Coordinates (ft_face, num_coords, ft_coords);
+ }
+
+ cairo_face = cairo_ft_font_face_create_for_ft_face (ft_face, FT_LOAD_NO_HINTING | FT_LOAD_COLOR);
+ cairo_font_face_set_user_data (cairo_face, &key,
+ ft_face, (cairo_destroy_func_t) FT_Done_Face);
+
+ return cairo_face;
+}
+
cairo_scaled_font_t *
_pango_cairo_font_private_get_scaled_font (PangoCairoFontPrivate *cf_priv)
{
@@ -76,7 +132,11 @@ _pango_cairo_font_private_get_scaled_font (PangoCairoFontPrivate *cf_priv)
return NULL;
}
- font_face = (* PANGO_CAIRO_FONT_GET_IFACE (cf_priv->cfont)->create_font_face) (cf_priv->cfont);
+ if (PANGO_IS_CAIRO_FONT (cf_priv->cfont))
+ font_face = (* PANGO_CAIRO_FONT_GET_IFACE (cf_priv->cfont)->create_font_face) (cf_priv->cfont);
+ else
+ font_face = create_font_face_for_hb_font (PANGO_HB_FONT (cf_priv->cfont));
+
if (G_UNLIKELY (font_face == NULL))
goto done;
@@ -161,6 +221,19 @@ pango_cairo_font_get_scaled_font (PangoCairoFont *cfont)
return _pango_cairo_font_private_get_scaled_font (cf_priv);
}
+cairo_scaled_font_t *
+_pango_font_get_scaled_font (PangoFont *font)
+{
+ PangoCairoFontPrivate *cf_priv;
+
+ cf_priv = _pango_font_get_cairo_font_private (font);
+
+ if (G_UNLIKELY (!cf_priv))
+ return NULL;
+
+ return _pango_cairo_font_private_get_scaled_font (cf_priv);
+}
+
/**
* _pango_cairo_font_install:
* @font: a `PangoCairoFont`
@@ -175,7 +248,9 @@ gboolean
_pango_cairo_font_install (PangoFont *font,
cairo_t *cr)
{
- cairo_scaled_font_t *scaled_font = pango_cairo_font_get_scaled_font ((PangoCairoFont *)font);
+ cairo_scaled_font_t *scaled_font;
+
+ scaled_font = _pango_font_get_scaled_font (font);
if (G_UNLIKELY (scaled_font == NULL || cairo_scaled_font_status (scaled_font) != CAIRO_STATUS_SUCCESS))
return FALSE;
@@ -506,8 +581,7 @@ _pango_cairo_font_private_get_hex_box_info (PangoCairoFontPrivate *cf_priv)
pango_font_description_free (desc);
cairo_font_options_destroy (font_options);
-
- scaled_mini_font = pango_cairo_font_get_scaled_font ((PangoCairoFont *) mini_font);
+ scaled_mini_font = _pango_font_get_scaled_font (mini_font);
if (G_UNLIKELY (scaled_mini_font == NULL || cairo_scaled_font_status (scaled_mini_font) !=
CAIRO_STATUS_SUCCESS))
return NULL;
@@ -532,7 +606,7 @@ _pango_cairo_font_private_get_hex_box_info (PangoCairoFontPrivate *cf_priv)
pad = MIN (pad, mini_size);
hbi = g_slice_new (PangoCairoFontHexBoxInfo);
- hbi->font = (PangoCairoFont *) mini_font;
+ hbi->font = mini_font;
hbi->rows = rows;
hbi->digit_width = width;
@@ -585,10 +659,65 @@ _pango_cairo_font_hex_box_info_destroy (PangoCairoFontHexBoxInfo *hbi)
}
}
+static void
+free_cairo_font_private (gpointer data)
+{
+ PangoCairoFontPrivate *cf_priv = data;
+ _pango_cairo_font_private_finalize (cf_priv);
+ g_free (data);
+}
+
+PangoCairoFontPrivate *
+_pango_font_get_cairo_font_private (PangoFont *font)
+{
+ PangoCairoFontPrivate *cf_priv;
+
+ if (PANGO_IS_CAIRO_FONT (font))
+ return PANGO_CAIRO_FONT_PRIVATE (font);
+
+ cf_priv = g_object_get_data (G_OBJECT (font), "pango-hb-font-cairo_private");
+ if (!cf_priv)
+ {
+ PangoHbFont *hbfont = PANGO_HB_FONT (font);
+ cairo_font_options_t *font_options;
+ cairo_matrix_t font_matrix;
+
+ cairo_matrix_init (&font_matrix,
+ hbfont->face->matrix.xx,
+ hbfont->face->matrix.yx,
+ hbfont->face->matrix.xy,
+ hbfont->face->matrix.yy,
+ 0., 0.);
+
+ cairo_matrix_scale (&font_matrix,
+ hbfont->size / (double)PANGO_SCALE,
+ hbfont->size / (double)PANGO_SCALE);
+
+ font_options = cairo_font_options_create ();
+ cairo_font_options_set_hint_style (font_options, CAIRO_HINT_STYLE_NONE);
+ cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF);
+
+ cf_priv = g_new0 (PangoCairoFontPrivate, 1);
+ _pango_cairo_font_private_initialize (cf_priv,
+ (PangoCairoFont *)font,
+ hbfont->gravity,
+ font_options,
+ &hbfont->matrix,
+ &font_matrix);
+
+ cairo_font_options_destroy (font_options);
+
+ g_object_set_data_full (G_OBJECT (font), "pango-hb-font-cairo_private",
+ cf_priv, free_cairo_font_private);
+ }
+
+ return cf_priv;
+}
+
PangoCairoFontHexBoxInfo *
-_pango_cairo_font_get_hex_box_info (PangoCairoFont *cfont)
+_pango_cairo_font_get_hex_box_info (PangoFont *font)
{
- PangoCairoFontPrivate *cf_priv = PANGO_CAIRO_FONT_PRIVATE (cfont);
+ PangoCairoFontPrivate *cf_priv = _pango_font_get_cairo_font_private (font);
return _pango_cairo_font_private_get_hex_box_info (cf_priv);
}
diff --git a/pango/pangocairo-private.h b/pango/pangocairo-private.h
index 704ae497..ffcb5488 100644
--- a/pango/pangocairo-private.h
+++ b/pango/pangocairo-private.h
@@ -48,23 +48,10 @@ struct _PangoCairoFontMapIface
typedef struct _PangoCairoFontIface PangoCairoFontIface;
typedef struct _PangoCairoFontPrivate PangoCairoFontPrivate;
-typedef struct _PangoCairoFontHexBoxInfo PangoCairoFontHexBoxInfo;
+typedef struct _HexBoxInfo PangoCairoFontHexBoxInfo;
typedef struct _PangoCairoFontPrivateScaledFontData PangoCairoFontPrivateScaledFontData;
typedef struct _PangoCairoFontGlyphExtentsCacheEntry PangoCairoFontGlyphExtentsCacheEntry;
-struct _PangoCairoFontHexBoxInfo
-{
- PangoCairoFont *font;
- int rows;
- double digit_width;
- double digit_height;
- double pad_x;
- double pad_y;
- double line_width;
- double box_descent;
- double box_height;
-};
-
struct _PangoCairoFontPrivateScaledFontData
{
cairo_matrix_t font_matrix;
@@ -105,7 +92,9 @@ gboolean _pango_cairo_font_install (PangoFont *font,
cairo_t *cr);
PangoFontMetrics * _pango_cairo_font_get_metrics (PangoFont *font,
PangoLanguage *language);
-PangoCairoFontHexBoxInfo *_pango_cairo_font_get_hex_box_info (PangoCairoFont *cfont);
+PangoCairoFontHexBoxInfo *_pango_cairo_font_get_hex_box_info (PangoFont *font);
+PangoCairoFontPrivate *_pango_font_get_cairo_font_private (PangoFont *font);
+cairo_scaled_font_t *_pango_font_get_scaled_font (PangoFont *font);
void _pango_cairo_font_private_initialize (PangoCairoFontPrivate *cf_priv,
PangoCairoFont *font,
diff --git a/pango/pangocairo-render.c b/pango/pangocairo-render.c
index 2c552ba1..92546f1b 100644
--- a/pango/pangocairo-render.c
+++ b/pango/pangocairo-render.c
@@ -27,6 +27,7 @@
#include "pangocairo-private.h"
#include "pango-glyph-item.h"
#include "pango-impl-utils.h"
+#include "pango-hbfont-private.h"
typedef struct _PangoCairoRendererClass PangoCairoRendererClass;
@@ -249,7 +250,10 @@ _pango_cairo_renderer_draw_unknown_glyph (PangoCairoRenderer *crenderer,
ch = gi->glyph & ~PANGO_GLYPH_UNKNOWN_FLAG;
invalid_input = G_UNLIKELY (gi->glyph == PANGO_GLYPH_INVALID_INPUT || ch > 0x10FFFF);
- hbi = _pango_cairo_font_get_hex_box_info ((PangoCairoFont *)font);
+ if (PANGO_IS_HB_FONT (font))
+ hbi = PANGO_HB_FONT (font)->hex_box_info;
+ else
+ hbi = _pango_cairo_font_get_hex_box_info (font);
if (!hbi || !_pango_cairo_font_install ((PangoFont *)(hbi->font), crenderer->cr))
{
_pango_cairo_renderer_draw_box_glyph (crenderer, gi, cx, cy, invalid_input);
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