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Blender V4.3
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Blender V4.3
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#include <cmath>#include <cstdio>#include <cstdlib>#include <cstring>#include <ft2build.h>#include "MEM_guardedalloc.h"#include "BLI_listbase.h"#include "BLI_math_color.h"#include "BLI_rect.h"#include "BLI_string.h"#include "BLI_threads.h"#include "BLF_api.hh"#include "DNA_curve_types.h"#include "GPU_capabilities.hh"#include "blf_internal.hh"#include "blf_internal_types.hh"#include "BLI_math_vector.h"#include "BLI_string_utf8.h"#include "nanosvgrast.h"#include "svg_icons.h"#include "BLI_strict_flags.h"Go to the source code of this file.
Classes | |
| struct | UnicodeBlock |
Macros | |
| #define | BLF_GAMMA_CORRECT_GLYPHS |
Functions | |
Internal Utilities | |
| static FT_Fixed | to_16dot16 (double val) |
| static float | from_16dot16 (FT_Fixed value) |
Glyph Cache | |
| static GlyphCacheBLF * | blf_glyph_cache_find (const FontBLF *font) |
| static GlyphCacheBLF * | blf_glyph_cache_new (FontBLF *font) |
| GlyphCacheBLF * | blf_glyph_cache_acquire (FontBLF *font) |
| void | blf_glyph_cache_release (FontBLF *font) |
| void | blf_glyph_cache_clear (FontBLF *font) |
| static GlyphBLF * | blf_glyph_cache_find_glyph (const GlyphCacheBLF *gc, uint charcode, uint8_t subpixel) |
| static uchar | blf_glyph_gamma (uchar c) |
| static GlyphBLF * | blf_glyph_cache_add_glyph (GlyphCacheBLF *gc, FT_GlyphSlot glyph, uint charcode, FT_UInt glyph_index, uint8_t subpixel) |
| static GlyphBLF * | blf_glyph_cache_add_blank (GlyphCacheBLF *gc, uint charcode) |
| static GlyphBLF * | blf_glyph_cache_add_svg (GlyphCacheBLF *gc, uint charcode, bool color, blender::FunctionRef< void(std::string &)> edit_source_cb=nullptr) |
Glyph Load | |
| static FT_GlyphSlot | blf_glyph_load (FontBLF *font, FT_UInt glyph_index, bool outline_only) |
Glyph Render | |
| static bool | blf_glyph_render_bitmap (FontBLF *font, FT_GlyphSlot glyph) |
Variations (Multiple Masters) support | |
| static const FT_Var_Axis * | blf_var_axis_by_tag (const FT_MM_Var *variations, const uint32_t tag, int *r_axis_index) |
| static FT_Fixed | blf_factor_to_coordinate (const FT_Var_Axis *axis, const float factor) |
| static bool | blf_glyph_set_variation_normalized (const FontBLF *font, FT_Fixed coords[], const uint32_t tag, const float factor) |
| static bool | blf_glyph_set_variation_float (const FontBLF *font, FT_Fixed coords[], uint32_t tag, float *value) |
| static float | blf_glyph_set_variation_weight (const FontBLF *font, FT_Fixed coords[], float current_weight, float target_weight) |
| static float | blf_glyph_set_variation_slant (const FontBLF *font, FT_Fixed coords[], float current_degrees, float target_degrees) |
| static float | blf_glyph_set_variation_width (const FontBLF *font, FT_Fixed coords[], float current_width, float target_width) |
| static float | blf_glyph_set_variation_spacing (const FontBLF *font, FT_Fixed coords[], float current_spacing, float target_spacing) |
| static bool | blf_glyph_set_variation_optical_size (const FontBLF *font, FT_Fixed coords[], const float points) |
Glyph Transformations | |
| static bool | blf_glyph_transform_weight (FT_GlyphSlot glyph, float width, bool monospaced) |
| static bool | blf_glyph_transform_slant (FT_GlyphSlot glyph, float degrees) |
| static bool | blf_glyph_transform_width (FT_GlyphSlot glyph, float factor) |
| static bool | blf_glyph_transform_spacing (FT_GlyphSlot glyph, float factor) |
| static bool | blf_glyph_transform_monospace (FT_GlyphSlot glyph, int width) |
Glyph Access (Ensure/Free) | |
| static FT_GlyphSlot | blf_glyph_render (FontBLF *settings_font, FontBLF *glyph_font, FT_UInt glyph_index, uint charcode, uint8_t subpixel, int fixed_width, bool outline_only) |
| GlyphBLF * | blf_glyph_ensure (FontBLF *font, GlyphCacheBLF *gc, const uint charcode, uint8_t subpixel) |
| GlyphBLF * | blf_glyph_ensure_icon (GlyphCacheBLF *gc, const uint icon_id, bool color, blender::FunctionRef< void(std::string &)> edit_source_cb) |
| GlyphBLF * | blf_glyph_ensure_subpixel (FontBLF *font, GlyphCacheBLF *gc, GlyphBLF *g, int32_t pen_x) |
Glyph Bounds Calculation | |
| static void | blf_glyph_calc_rect (const GlyphBLF *g, const int x, const int y, rcti *r_rect) |
| static void | blf_glyph_calc_rect_test (const GlyphBLF *g, const int x, const int y, rcti *r_rect) |
| static void | blf_glyph_calc_rect_shadow (const GlyphBLF *g, const int x, const int y, const FontBLF *font, rcti *r_rect) |
Glyph Drawing | |
| static void | blf_texture_draw (const GlyphBLF *g, const uchar color[4], const FontShadowType shadow, const int x1, const int y1, const int x2, const int y2) |
| void | blf_glyph_draw (FontBLF *font, GlyphCacheBLF *gc, GlyphBLF *g, const int x, const int y) |
Convert Glyph to Curves | |
| static void | blf_glyph_to_curves (const FT_Outline &ftoutline, ListBase *nurbsbase, const float scale) |
| static FT_GlyphSlot | blf_glyphslot_ensure_outline (FontBLF *font, const uint charcode) |
| float | blf_character_to_curves (FontBLF *font, uint unicode, ListBase *nurbsbase, const float scale) |
Glyph Unicode Block Lookup | |
This table can be used to find a coverage bit based on a charcode. Later we can get default language and script from | |
| static const UnicodeBlock | unicode_blocks [] |
| static const UnicodeBlock * | blf_charcode_to_unicode_block (const uint charcode) |
| static int | blf_charcode_to_coverage_bit (uint charcode) |
| static bool | blf_font_has_coverage_bit (const FontBLF *font, int coverage_bit) |
| static FT_UInt | blf_glyph_index_from_charcode (FontBLF **font, const uint charcode) |
Glyph rendering, texturing and caching. Wraps Freetype and OpenGL functions.
Definition in file blf_glyph.cc.
| #define BLF_GAMMA_CORRECT_GLYPHS |
Convert glyph coverage amounts to lightness values. Uses a LUT that perceptually improves anti-aliasing and results in text that looks a bit fuller and slightly brighter. This should be reconsidered in some - or all - cases when we transform the entire UI.
Definition at line 58 of file blf_glyph.cc.
| float blf_character_to_curves | ( | FontBLF * | font, |
| unsigned int | unicode, | ||
| ListBase * | nurbsbase, | ||
| const float | scale ) |
Convert a character's outlines into curves.
Definition at line 1883 of file blf_glyph.cc.
References blf_glyph_to_curves(), blf_glyphslot_ensure_outline(), and float.
Referenced by BLF_character_to_curves().
Definition at line 756 of file blf_glyph.cc.
References blf_charcode_to_unicode_block(), and UnicodeBlock::coverage_bit.
Referenced by blf_glyph_index_from_charcode().
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Find a unicode block that a charcode belongs to.
Definition at line 724 of file blf_glyph.cc.
References ARRAY_SIZE, int, max, min, and unicode_blocks.
Referenced by blf_charcode_to_coverage_bit().
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Convert a float factor to a fixed-point design coordinate. Currently unused because we are only dealing with known axes with specific functions, but this would be needed for unregistered, custom, or private tags. These are all uppercase axis tags.
| axis | Pointer to a design space axis structure. |
| factor | -1 to 1 with 0 meaning "default" |
Definition at line 999 of file blf_glyph.cc.
Referenced by blf_glyph_set_variation_normalized().
Definition at line 773 of file blf_glyph.cc.
Referenced by blf_glyph_index_from_charcode().
| GlyphCacheBLF * blf_glyph_cache_acquire | ( | FontBLF * | font | ) |
Definition at line 135 of file blf_glyph.cc.
References blf_glyph_cache_find(), and blf_glyph_cache_new().
Referenced by blf_draw_svg_icon(), blf_font_boundbox(), blf_font_boundbox_foreach_glyph(), blf_font_draw(), blf_font_draw_buffer(), blf_font_draw_mono(), blf_font_fixed_width(), blf_font_width_to_rstrlen(), blf_font_width_to_strlen(), blf_font_wrap_apply(), and blf_svg_icon_bitmap().
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Definition at line 343 of file blf_glyph.cc.
References blender::Map< Key, Value, InlineBufferCapacity, ProbingStrategy, Hash, IsEqual, Slot, Allocator >::add(), GlyphCacheBLF::glyphs, and result.
Referenced by blf_glyph_cache_add_svg().
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Add a rendered glyph to a cache.
Definition at line 227 of file blf_glyph.cc.
References blender::Map< Key, Value, InlineBufferCapacity, ProbingStrategy, Hash, IsEqual, Slot, Allocator >::add(), blf_glyph_gamma(), ELEM, GlyphCacheBLF::glyphs, int, MEM_mallocN, and result.
Referenced by blf_glyph_ensure().
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Definition at line 355 of file blf_glyph.cc.
References blender::Map< Key, Value, InlineBufferCapacity, ProbingStrategy, Hash, IsEqual, Slot, Allocator >::add(), blf_glyph_cache_add_blank(), BLF_ICON_OFFSET, ceil(), blender::Array< T, InlineBufferCapacity, Allocator >::data(), float, GlyphCacheBLF::glyphs, int, MEM_mallocN, result, rgb_to_grayscale_byte(), GlyphCacheBLF::size, and x.
Referenced by blf_glyph_ensure_icon().
| void blf_glyph_cache_clear | ( | FontBLF * | font | ) |
Definition at line 164 of file blf_glyph.cc.
References lock.
Referenced by BLF_cache_clear(), and blf_font_free().
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Definition at line 86 of file blf_glyph.cc.
References BLF_BOLD, and BLF_ITALIC.
Referenced by blf_glyph_cache_acquire().
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Try to find a glyph in cache.
Definition at line 175 of file blf_glyph.cc.
References GlyphCacheBLF::glyphs, blender::Map< Key, Value, InlineBufferCapacity, ProbingStrategy, Hash, IsEqual, Slot, Allocator >::lookup_ptr_as(), and ptr.
Referenced by blf_glyph_ensure(), and blf_glyph_ensure_icon().
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Definition at line 100 of file blf_glyph.cc.
References BLF_BOLD, blf_ensure_size(), blf_get_char_index(), BLF_ITALIC, and int.
Referenced by blf_glyph_cache_acquire().
| void blf_glyph_cache_release | ( | FontBLF * | font | ) |
Definition at line 148 of file blf_glyph.cc.
Referenced by blf_draw_svg_icon(), blf_font_boundbox(), blf_font_boundbox_foreach_glyph(), blf_font_draw(), blf_font_draw_buffer(), blf_font_draw_mono(), blf_font_fixed_width(), blf_font_width_to_rstrlen(), blf_font_width_to_strlen(), blf_font_wrap_apply(), and blf_svg_icon_bitmap().
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Definition at line 1448 of file blf_glyph.cc.
References GlyphBLF::dims, GlyphBLF::pos, rcti::xmax, rcti::xmin, rcti::ymax, and rcti::ymin.
Referenced by blf_glyph_calc_rect_shadow(), and blf_glyph_draw().
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Definition at line 1467 of file blf_glyph.cc.
References blf_glyph_calc_rect().
Referenced by blf_glyph_draw().
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Definition at line 1456 of file blf_glyph.cc.
References abs(), GlyphBLF::advance_x, GlyphBLF::dims, ft_pix_to_int(), GlyphBLF::pos, rcti::xmax, rcti::xmin, y, rcti::ymax, and rcti::ymin.
Referenced by blf_glyph_draw().
| void blf_glyph_draw | ( | FontBLF * | font, |
| GlyphCacheBLF * | gc, | ||
| GlyphBLF * | g, | ||
| const int | x, | ||
| const int | y ) |
Definition at line 1507 of file blf_glyph.cc.
References GlyphBLF::bitmap, GlyphCacheBLF::bitmap_len, GlyphCacheBLF::bitmap_len_alloc, GlyphCacheBLF::bitmap_len_landed, GlyphCacheBLF::bitmap_result, BLF_ASPECT, blf_batch_draw(), BLF_CLIPPING, blf_glyph_calc_rect(), blf_glyph_calc_rect_shadow(), blf_glyph_calc_rect_test(), BLF_SHADOW, blf_texture_draw(), BLI_rcti_inside_rcti(), BLI_rcti_translate(), GlyphBLF::dims, g_batch, BatchBLF::glyph_cache, GlyphBLF::glyph_cache, GPU_max_texture_size(), GPU_R8, GPU_texture_create_2d(), GPU_texture_free(), GPU_TEXTURE_USAGE_SHADER_READ, MEM_reallocN, None, GlyphBLF::num_channels, GlyphBLF::offset, GlyphCacheBLF::texture, w(), rcti::xmax, rcti::xmin, rcti::ymax, and rcti::ymin.
Referenced by blf_draw_svg_icon(), blf_font_draw_ex(), and blf_font_draw_mono().
| GlyphBLF * blf_glyph_ensure | ( | FontBLF * | font, |
| GlyphCacheBLF * | gc, | ||
| uint | charcode, | ||
| uint8_t | subpixel = 0 ) |
Create (or load from cache) a fully-rendered bitmap glyph.
Definition at line 1372 of file blf_glyph.cc.
References blf_ensure_face(), blf_glyph_cache_add_glyph(), blf_glyph_cache_find_glyph(), blf_glyph_index_from_charcode(), blf_glyph_render(), and GlyphCacheBLF::fixed_width.
Referenced by blf_glyph_ensure_subpixel(), and blf_glyph_from_utf8_and_step().
| GlyphBLF * blf_glyph_ensure_icon | ( | GlyphCacheBLF * | gc, |
| const uint | icon_id, | ||
| bool | color, | ||
| blender::FunctionRef< void(std::string &)> | edit_source_cb ) |
Definition at line 1399 of file blf_glyph.cc.
References blf_glyph_cache_add_svg(), blf_glyph_cache_find_glyph(), and BLF_ICON_OFFSET.
Referenced by blf_draw_svg_icon(), and blf_svg_icon_bitmap().
| GlyphBLF * blf_glyph_ensure_subpixel | ( | FontBLF * | font, |
| GlyphCacheBLF * | gc, | ||
| GlyphBLF * | g, | ||
| int32_t | pen_x ) |
Definition at line 1413 of file blf_glyph.cc.
References GlyphBLF::advance_x, blf_glyph_ensure(), BLF_RENDER_SUBPIXELAA, GlyphBLF::c, GlyphBLF::dims, and GlyphBLF::subpixel.
Referenced by blf_font_width_to_strlen_glyph_process(), and blf_glyph_from_utf8_and_step().
Gamma correction of glyph coverage values with widely-recommended gamma of 1.43. "The reasons are historical. Because so many programmers have neglected gamma blending for so long, people who have created fonts have tried to work around the problem of fonts looking too thin by just making the fonts thicker! Obviously it doesn't help the jaggedness, but it does make them look the proper weight, as originally intended. The obvious problem with this is that if we want to gamma blend correctly many older fonts will look wrong. So we compromise, and use a lower gamma value, so we get a bit better anti-aliasing, but the fonts don't look too heavy." https://www.puredevsoftware.com/blog/2019/01/22/sub-pixel-gamma-correct-font-rendering/
Definition at line 200 of file blf_glyph.cc.
Referenced by blf_glyph_cache_add_glyph().
Return a glyph index from charcode. Not found returns zero, which is a valid printable character (.notdef or tofu). Font is allowed to change here.
Definition at line 785 of file blf_glyph.cc.
References BLF_CACHED, blf_charcode_to_coverage_bit(), BLF_DEFAULT, blf_font_has_coverage_bit(), blf_get_char_index(), BLF_LAST_RESORT, BLF_MAX_FONT, BLF_MONOSPACED, FontBLF::face, FontBLF::flags, global_font, and printf.
Referenced by blf_glyph_ensure(), and blf_glyphslot_ensure_outline().
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Load a glyph into the glyph slot of a font's face object.
Definition at line 879 of file blf_glyph.cc.
References BLF_HINTING_FULL, BLF_HINTING_NONE, BLF_HINTING_SLIGHT, BLF_MONOCHROME, and FontBLF::face.
Referenced by blf_glyph_render().
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Create and return a fully-rendered bitmap glyph.
Definition at line 1283 of file blf_glyph.cc.
References BLF_BOLD, blf_ensure_size(), blf_font_size(), blf_glyph_load(), blf_glyph_render_bitmap(), blf_glyph_set_variation_optical_size(), blf_glyph_set_variation_slant(), blf_glyph_set_variation_spacing(), blf_glyph_set_variation_weight(), blf_glyph_set_variation_width(), blf_glyph_transform_monospace(), blf_glyph_transform_slant(), blf_glyph_transform_spacing(), blf_glyph_transform_weight(), blf_glyph_transform_width(), BLF_ITALIC, BLF_MONOSPACED, BLF_VARIATIONS_MAX, BLI_wcwidth_or_error(), FontBLF::char_slant, FontBLF::char_spacing, FontBLF::char_weight, FontBLF::char_width, col, FontBLF::face, FontBLF::flags, float, FontBLF::metrics, FontBLF::size, FontMetrics::slant, FontMetrics::spacing, FontBLF::variations, FontMetrics::weight, and FontMetrics::width.
Referenced by blf_glyph_ensure(), and blf_glyphslot_ensure_outline().
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Convert a glyph from outlines to a bitmap that we can display.
Definition at line 925 of file blf_glyph.cc.
References BLF_HINTING_SLIGHT, BLF_MONOCHROME, and ELEM.
Referenced by blf_glyph_render().
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Set a face variation axis to an exact float value
| coords | Array of design coordinates, per axis. |
| tag | Axis tag, e.g. BLF_VARIATION_AXIS_OPTSIZE. |
| value | New float value. Converted to 16.16 and clamped within allowed range. |
Definition at line 1047 of file blf_glyph.cc.
References blf_var_axis_by_tag(), BLF_VARIATIONS_MAX, CLAMP, from_16dot16(), and to_16dot16().
Referenced by blf_glyph_set_variation_optical_size(), blf_glyph_set_variation_slant(), blf_glyph_set_variation_spacing(), blf_glyph_set_variation_weight(), and blf_glyph_set_variation_width().
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Alter a face variation axis by a factor. Currently unused because we are only dealing with known axes with specific functions, but this would be needed for unregistered, custom, or private tags. These are all uppercase axis tags.
| coords | array of design coordinates, per axis. |
| tag | Axis tag, e.g. BLF_VARIATION_AXIS_WEIGHT. |
| factor | -1 to 1 with 0 meaning "default" |
Definition at line 1025 of file blf_glyph.cc.
References blf_factor_to_coordinate(), blf_var_axis_by_tag(), and BLF_VARIATIONS_MAX.
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Set the BLF_VARIATION_AXIS_OPTSIZE (Optical Size) axis to a specific size value.
| coords | Array of design coordinates, per axis. |
| points | Non-zero size in typographic points. |
Definition at line 1147 of file blf_glyph.cc.
References blf_glyph_set_variation_float(), and BLF_VARIATION_AXIS_OPTSIZE.
Referenced by blf_glyph_render().
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Set the BLF_VARIATION_AXIS_SLANT (Slant) axis to a specific slant value.
| coords | Array of design coordinates, per axis. |
| degrees | Slant in clockwise (opposite to spec) degrees. |
Definition at line 1090 of file blf_glyph.cc.
References blf_glyph_set_variation_float(), and BLF_VARIATION_AXIS_SLANT.
Referenced by blf_glyph_render().
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Set the proposed BLF_VARIATION_AXIS_SPACING (Spacing) axis to a specific value.
| coords | Array of design coordinates, per axis. |
| spacing | Glyph spacing value. 0.0 is normal, as per spec. |
Definition at line 1128 of file blf_glyph.cc.
References blf_glyph_set_variation_float(), and BLF_VARIATION_AXIS_SPACING.
Referenced by blf_glyph_render().
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Set the BLF_VARIATION_AXIS_WEIGHT (Weight) axis to a specific weight value.
| coords | Array of design coordinates, per axis. |
| weight | Weight class value (1-1000 allowed, 100-900 typical). |
Definition at line 1071 of file blf_glyph.cc.
References blf_glyph_set_variation_float(), and BLF_VARIATION_AXIS_WEIGHT.
Referenced by blf_glyph_render().
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Set the BLF_VARIATION_AXIS_WIDTH (Width) axis to a specific width value.
| coords | Array of design coordinates, per axis. |
| width | Glyph width value. 1.0 is normal, as per spec (which uses percent). |
Definition at line 1109 of file blf_glyph.cc.
References blf_glyph_set_variation_float(), and BLF_VARIATION_AXIS_WIDTH.
Referenced by blf_glyph_render().
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from: http://www.freetype.org/freetype2/docs/glyphs/glyphs-6.html#section-1
Vectorial representation of Freetype glyphs
The source format of outlines is a collection of closed paths called "contours". Each contour is made of a series of line segments and bezier arcs. Depending on the file format, these can be second-order or third-order polynomials. The former are also called quadratic or conic arcs, and they come from the TrueType format. The latter are called cubic arcs and mostly come from the Type1 format.
Each arc is described through a series of start, end and control points. Each point of the outline has a specific tag which indicates whether it is used to describe a line segment or an arc. The following rules are applied to decompose the contour's points into segments and arcs :
the "off" point being the control point, and the "on" ones the start and end points.
There must be exactly two cubic control points and two on points for each cubic arc (using a single cubic "off" point between two "on" points is forbidden, for example).
(during the scan-line conversion process exclusively) a virtual "on" point midst them, at their exact middle. This greatly facilitates the definition of successive conic bezier arcs. Moreover, it's the way outlines are described in the TrueType specification.
Note that it is possible to mix conic and cubic arcs in a single contour, even though no current font driver produces such outlines.
* # on
* off
__---__
#-__ _-- -_
--__ _- -
--__ # \
--__ #
-#
Two "on" points
Two "on" points and one "conic" point
between them
*
# __ Two "on" points with two "conic"
\ - - points between them. The point
\ / \ marked '0' is the middle of the
- 0 \ "off" points, and is a 'virtual'
-_ _- # "on" point where the curve passes.
-- It does not appear in the point
list.
*
* # on
* * off
__---__
_-- -_
_- -
# \
#
Two "on" points
and two "cubic" point
between them
Each glyphs original outline points are located on a grid of indivisible units. The points are stored in the font file as 16-bit integer grid coordinates, with the grid origin's being at (0, 0); they thus range from -16384 to 16383.
Convert conic to bezier arcs: Conic P0 P1 P2 Bezier B0 B1 B2 B3 B0=P0 B1=(P0+2*P1)/3 B2=(P2+2*P1)/3 B3=P2
Definition at line 1676 of file blf_glyph.cc.
References Nurb::bezt, BLI_addtail(), CU_BEZIER, CU_NURB_CYCLIC, dist_squared_to_line_v2(), eps, Nurb::flagu, float, BezTriple::h1, BezTriple::h2, HD_ALIGN, HD_FREE, HD_VECT, l, len_squared_v2v2(), max_ff(), MEM_callocN, MEM_freeN(), Nurb::pntsu, BezTriple::radius, Nurb::resolu, Nurb::type, and BezTriple::vec.
Referenced by blf_character_to_curves().
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Transform glyph to fit nicely within a fixed column width. This conversion of a proportional font glyph into a monospaced glyph only occurs when a mono font does not contain a needed character and must get one from the fallback stack.
Definition at line 1251 of file blf_glyph.cc.
References float, and to_16dot16().
Referenced by blf_glyph_render().
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Adjust the glyph's slant by a number of degrees. Used for fonts without BLF_VARIATION_AXIS_SLANT variable axis.
| degrees | amount of tilt to add in clockwise degrees. |
Definition at line 1194 of file blf_glyph.cc.
References FontBLF::face, and to_16dot16().
Referenced by blf_glyph_render().
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Adjust the glyph spacing by factor. Used for fonts without BLF_VARIATION_AXIS_SPACING variable axis.
| factor | -1 (make tighter) <= 0 (normal) => 1 (add space). |
Definition at line 1235 of file blf_glyph.cc.
References FontBLF::face.
Referenced by blf_glyph_render().
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Adjust the glyph's weight by a factor. Used for fonts without BLF_VARIATION_AXIS_WEIGHT variable axis.
| width | -500 (make thinner) <= 0 (normal) => 500 (add boldness). |
Definition at line 1167 of file blf_glyph.cc.
References FontBLF::face.
Referenced by blf_glyph_render().
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Adjust the glyph width by factor. Used for fonts without BLF_VARIATION_AXIS_WIDTH variable axis.
| factor | -1 (subtract width) <= 0 (normal) => 1 (add width). |
Definition at line 1217 of file blf_glyph.cc.
References to_16dot16().
Referenced by blf_glyph_render().
Definition at line 1857 of file blf_glyph.cc.
References blf_ensure_face(), blf_glyph_index_from_charcode(), blf_glyph_render(), FontBLF::face, float, int, and to_16dot16().
Referenced by blf_character_to_curves().
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Definition at line 1479 of file blf_glyph.cc.
References blf_batch_draw(), BLF_BATCH_DRAW_LEN_MAX, BatchBLF::col_step, copy_v2_v2_int(), copy_v4_fl4(), copy_v4_v4_uchar(), GlyphBLF::dims, g_batch, BatchBLF::glyph_flags_step, BatchBLF::glyph_len, BatchBLF::glyph_size_step, GPU_vertbuf_raw_step(), GlyphBLF::num_channels, GlyphBLF::offset, BatchBLF::offset_step, BatchBLF::ofs, and BatchBLF::pos_step.
Referenced by blf_glyph_draw().
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Return a design axis that matches an identifying tag.
| variations | Variation descriptors from FT_Get_MM_Var. |
| tag | Axis tag, e.g. BLF_VARIATION_AXIS_WEIGHT. |
| r_axis_index | returns index of axis in variations array. |
Definition at line 973 of file blf_glyph.cc.
References int.
Referenced by blf_glyph_set_variation_float(), and blf_glyph_set_variation_normalized().
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Convert a floating point value to a FreeType 16.16 fixed point value.
Definition at line 75 of file blf_glyph.cc.
References float.
Referenced by blf_glyph_set_variation_float().
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Convert a floating point value to a FreeType 16.16 fixed point value.
Definition at line 67 of file blf_glyph.cc.
Referenced by blf_glyph_set_variation_float(), blf_glyph_transform_monospace(), blf_glyph_transform_slant(), blf_glyph_transform_width(), and blf_glyphslot_ensure_outline().
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Definition at line 462 of file blf_glyph.cc.
Referenced by blf_charcode_to_unicode_block().