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Add font LCD sub-pixel anti-aliasing support.

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This commit is contained in:
bruvzg
2022-08-12 14:03:28 +03:00
parent 230225d360
commit bcc3643989
49 changed files with 933 additions and 303 deletions
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266
modules/text_server_fb/text_server_fb.cpp
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@@ -34,6 +34,7 @@
// Headers for building as GDExtension plug-in.
#include <godot_cpp/classes/file.hpp>
#include <godot_cpp/classes/project_settings.hpp>
#include <godot_cpp/classes/rendering_server.hpp>
#include <godot_cpp/classes/translation_server.hpp>
#include <godot_cpp/core/error_macros.hpp>
@@ -43,6 +44,7 @@ using namespace godot;
#else
// Headers for building as built-in module.
#include "core/config/project_settings.h"
#include "core/error/error_macros.h"
#include "core/string/print_string.h"
#include "core/string/ucaps.h"
@@ -209,6 +211,10 @@ _FORCE_INLINE_ TextServerFallback::FontTexturePosition TextServerFallback::find_
for (int i = 0; i < p_data->textures.size(); i++) {
const FontTexture &ct = p_data->textures[i];
if (p_image_format != ct.format) {
continue;
}
if (mw > ct.texture_w || mh > ct.texture_h) { // Too big for this texture.
continue;
}
@@ -500,9 +506,28 @@ _FORCE_INLINE_ TextServerFallback::FontGlyph TextServerFallback::rasterize_msdf(
#endif
#ifdef MODULE_FREETYPE_ENABLED
_FORCE_INLINE_ TextServerFallback::FontGlyph TextServerFallback::rasterize_bitmap(FontForSizeFallback *p_data, int p_rect_margin, FT_Bitmap bitmap, int yofs, int xofs, const Vector2 &advance) const {
_FORCE_INLINE_ TextServerFallback::FontGlyph TextServerFallback::rasterize_bitmap(FontForSizeFallback *p_data, int p_rect_margin, FT_Bitmap bitmap, int yofs, int xofs, const Vector2 &advance, bool p_bgra) const {
int w = bitmap.width;
int h = bitmap.rows;
int color_size = 2;
switch (bitmap.pixel_mode) {
case FT_PIXEL_MODE_MONO:
case FT_PIXEL_MODE_GRAY: {
color_size = 2;
} break;
case FT_PIXEL_MODE_BGRA: {
color_size = 4;
} break;
case FT_PIXEL_MODE_LCD: {
color_size = 4;
w /= 3;
} break;
case FT_PIXEL_MODE_LCD_V: {
color_size = 4;
h /= 3;
} break;
}
int mw = w + p_rect_margin * 4;
int mh = h + p_rect_margin * 4;
@@ -510,7 +535,6 @@ _FORCE_INLINE_ TextServerFallback::FontGlyph TextServerFallback::rasterize_bitma
ERR_FAIL_COND_V(mw > 4096, FontGlyph());
ERR_FAIL_COND_V(mh > 4096, FontGlyph());
int color_size = bitmap.pixel_mode == FT_PIXEL_MODE_BGRA ? 4 : 2;
Image::Format require_format = color_size == 4 ? Image::FORMAT_RGBA8 : Image::FORMAT_LA8;
FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, color_size, require_format, mw, mh, false);
@@ -545,6 +569,34 @@ _FORCE_INLINE_ TextServerFallback::FontGlyph TextServerFallback::rasterize_bitma
wr[ofs + 0] = bitmap.buffer[ofs_color + 2];
wr[ofs + 3] = bitmap.buffer[ofs_color + 3];
} break;
case FT_PIXEL_MODE_LCD: {
int ofs_color = i * bitmap.pitch + (j * 3);
if (p_bgra) {
wr[ofs + 0] = bitmap.buffer[ofs_color + 0];
wr[ofs + 1] = bitmap.buffer[ofs_color + 1];
wr[ofs + 2] = bitmap.buffer[ofs_color + 2];
wr[ofs + 3] = 255;
} else {
wr[ofs + 0] = bitmap.buffer[ofs_color + 2];
wr[ofs + 1] = bitmap.buffer[ofs_color + 1];
wr[ofs + 2] = bitmap.buffer[ofs_color + 0];
wr[ofs + 3] = 255;
}
} break;
case FT_PIXEL_MODE_LCD_V: {
int ofs_color = i * bitmap.pitch * 3 + j;
if (p_bgra) {
wr[ofs + 0] = bitmap.buffer[ofs_color + bitmap.pitch * 2];
wr[ofs + 1] = bitmap.buffer[ofs_color + bitmap.pitch];
wr[ofs + 2] = bitmap.buffer[ofs_color + 0];
wr[ofs + 3] = 255;
} else {
wr[ofs + 0] = bitmap.buffer[ofs_color + 0];
wr[ofs + 1] = bitmap.buffer[ofs_color + bitmap.pitch];
wr[ofs + 2] = bitmap.buffer[ofs_color + bitmap.pitch * 2];
wr[ofs + 3] = 255;
}
} break;
default:
ERR_FAIL_V_MSG(FontGlyph(), "Font uses unsupported pixel format: " + String::num_int64(bitmap.pixel_mode) + ".");
break;
@@ -650,9 +702,44 @@ _FORCE_INLINE_ bool TextServerFallback::_ensure_glyph(FontFallback *p_font_data,
FT_Outline_Transform(&fd->face->glyph->outline, &mat);
}
FT_Render_Mode aa_mode = FT_RENDER_MODE_NORMAL;
bool bgra = false;
switch (p_font_data->antialiasing) {
case FONT_ANTIALIASING_NONE: {
aa_mode = FT_RENDER_MODE_MONO;
} break;
case FONT_ANTIALIASING_GRAY: {
aa_mode = FT_RENDER_MODE_NORMAL;
} break;
case FONT_ANTIALIASING_LCD: {
int aa_layout = (int)((p_glyph >> 24) & 7);
switch (aa_layout) {
case FONT_LCD_SUBPIXEL_LAYOUT_HRGB: {
aa_mode = FT_RENDER_MODE_LCD;
bgra = false;
} break;
case FONT_LCD_SUBPIXEL_LAYOUT_HBGR: {
aa_mode = FT_RENDER_MODE_LCD;
bgra = true;
} break;
case FONT_LCD_SUBPIXEL_LAYOUT_VRGB: {
aa_mode = FT_RENDER_MODE_LCD_V;
bgra = false;
} break;
case FONT_LCD_SUBPIXEL_LAYOUT_VBGR: {
aa_mode = FT_RENDER_MODE_LCD_V;
bgra = true;
} break;
default: {
aa_mode = FT_RENDER_MODE_NORMAL;
} break;
}
} break;
}
if (!outline) {
if (!p_font_data->msdf) {
error = FT_Render_Glyph(fd->face->glyph, p_font_data->antialiased ? FT_RENDER_MODE_NORMAL : FT_RENDER_MODE_MONO);
error = FT_Render_Glyph(fd->face->glyph, aa_mode);
}
FT_GlyphSlot slot = fd->face->glyph;
if (!error) {
@@ -664,7 +751,7 @@ _FORCE_INLINE_ bool TextServerFallback::_ensure_glyph(FontFallback *p_font_data,
ERR_FAIL_V_MSG(false, "Compiled without MSDFGEN support!");
#endif
} else {
gl = rasterize_bitmap(fd, rect_range, slot->bitmap, slot->bitmap_top, slot->bitmap_left, Vector2((h + (1 << 9)) >> 10, (v + (1 << 9)) >> 10) / 64.0);
gl = rasterize_bitmap(fd, rect_range, slot->bitmap, slot->bitmap_top, slot->bitmap_left, Vector2((h + (1 << 9)) >> 10, (v + (1 << 9)) >> 10) / 64.0, bgra);
}
}
} else {
@@ -684,11 +771,11 @@ _FORCE_INLINE_ bool TextServerFallback::_ensure_glyph(FontFallback *p_font_data,
if (FT_Glyph_Stroke(&glyph, stroker, 1) != 0) {
goto cleanup_glyph;
}
if (FT_Glyph_To_Bitmap(&glyph, p_font_data->antialiased ? FT_RENDER_MODE_NORMAL : FT_RENDER_MODE_MONO, nullptr, 1) != 0) {
if (FT_Glyph_To_Bitmap(&glyph, aa_mode, nullptr, 1) != 0) {
goto cleanup_glyph;
}
glyph_bitmap = (FT_BitmapGlyph)glyph;
gl = rasterize_bitmap(fd, rect_range, glyph_bitmap->bitmap, glyph_bitmap->top, glyph_bitmap->left, Vector2());
gl = rasterize_bitmap(fd, rect_range, glyph_bitmap->bitmap, glyph_bitmap->top, glyph_bitmap->left, Vector2(), bgra);
cleanup_glyph:
FT_Done_Glyph(glyph);
@@ -1014,23 +1101,23 @@ String TextServerFallback::font_get_name(const RID &p_font_rid) const {
return fd->font_name;
}
void TextServerFallback::font_set_antialiased(const RID &p_font_rid, bool p_antialiased) {
void TextServerFallback::font_set_antialiasing(RID p_font_rid, TextServer::FontAntialiasing p_antialiasing) {
FontFallback *fd = font_owner.get_or_null(p_font_rid);
ERR_FAIL_COND(!fd);
MutexLock lock(fd->mutex);
if (fd->antialiased != p_antialiased) {
if (fd->antialiasing != p_antialiasing) {
_font_clear_cache(fd);
fd->antialiased = p_antialiased;
fd->antialiasing = p_antialiasing;
}
}
bool TextServerFallback::font_is_antialiased(const RID &p_font_rid) const {
TextServer::FontAntialiasing TextServerFallback::font_get_antialiasing(RID p_font_rid) const {
FontFallback *fd = font_owner.get_or_null(p_font_rid);
ERR_FAIL_COND_V(!fd, false);
ERR_FAIL_COND_V(!fd, TextServer::FONT_ANTIALIASING_NONE);
MutexLock lock(fd->mutex);
return fd->antialiased;
return fd->antialiasing;
}
void TextServerFallback::font_set_generate_mipmaps(const RID &p_font_rid, bool p_generate_mipmaps) {
@@ -1589,7 +1676,16 @@ Vector2 TextServerFallback::font_get_glyph_advance(const RID &p_font_rid, int64_
Vector2i size = _get_size(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Vector2());
if (!_ensure_glyph(fd, size, p_glyph)) {
int mod = 0;
if (fd->antialiasing == FONT_ANTIALIASING_LCD) {
TextServer::FontLCDSubpixelLayout layout = (TextServer::FontLCDSubpixelLayout)(int)GLOBAL_GET("gui/theme/lcd_subpixel_layout");
if (layout != FONT_LCD_SUBPIXEL_LAYOUT_NONE) {
mod = (layout << 24);
}
}
if (!_ensure_glyph(fd, size, p_glyph | mod)) {
return Vector2(); // Invalid or non graphicl glyph, do not display errors.
}
@@ -1632,7 +1728,16 @@ Vector2 TextServerFallback::font_get_glyph_offset(const RID &p_font_rid, const V
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Vector2());
if (!_ensure_glyph(fd, size, p_glyph)) {
int mod = 0;
if (fd->antialiasing == FONT_ANTIALIASING_LCD) {
TextServer::FontLCDSubpixelLayout layout = (TextServer::FontLCDSubpixelLayout)(int)GLOBAL_GET("gui/theme/lcd_subpixel_layout");
if (layout != FONT_LCD_SUBPIXEL_LAYOUT_NONE) {
mod = (layout << 24);
}
}
if (!_ensure_glyph(fd, size, p_glyph | mod)) {
return Vector2(); // Invalid or non graphicl glyph, do not display errors.
}
@@ -1668,7 +1773,16 @@ Vector2 TextServerFallback::font_get_glyph_size(const RID &p_font_rid, const Vec
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Vector2());
if (!_ensure_glyph(fd, size, p_glyph)) {
int mod = 0;
if (fd->antialiasing == FONT_ANTIALIASING_LCD) {
TextServer::FontLCDSubpixelLayout layout = (TextServer::FontLCDSubpixelLayout)(int)GLOBAL_GET("gui/theme/lcd_subpixel_layout");
if (layout != FONT_LCD_SUBPIXEL_LAYOUT_NONE) {
mod = (layout << 24);
}
}
if (!_ensure_glyph(fd, size, p_glyph | mod)) {
return Vector2(); // Invalid or non graphicl glyph, do not display errors.
}
@@ -1704,7 +1818,16 @@ Rect2 TextServerFallback::font_get_glyph_uv_rect(const RID &p_font_rid, const Ve
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Rect2());
if (!_ensure_glyph(fd, size, p_glyph)) {
int mod = 0;
if (fd->antialiasing == FONT_ANTIALIASING_LCD) {
TextServer::FontLCDSubpixelLayout layout = (TextServer::FontLCDSubpixelLayout)(int)GLOBAL_GET("gui/theme/lcd_subpixel_layout");
if (layout != FONT_LCD_SUBPIXEL_LAYOUT_NONE) {
mod = (layout << 24);
}
}
if (!_ensure_glyph(fd, size, p_glyph | mod)) {
return Rect2(); // Invalid or non graphicl glyph, do not display errors.
}
@@ -1735,7 +1858,16 @@ int64_t TextServerFallback::font_get_glyph_texture_idx(const RID &p_font_rid, co
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), -1);
if (!_ensure_glyph(fd, size, p_glyph)) {
int mod = 0;
if (fd->antialiasing == FONT_ANTIALIASING_LCD) {
TextServer::FontLCDSubpixelLayout layout = (TextServer::FontLCDSubpixelLayout)(int)GLOBAL_GET("gui/theme/lcd_subpixel_layout");
if (layout != FONT_LCD_SUBPIXEL_LAYOUT_NONE) {
mod = (layout << 24);
}
}
if (!_ensure_glyph(fd, size, p_glyph | mod)) {
return -1; // Invalid or non graphicl glyph, do not display errors.
}
@@ -1766,7 +1898,16 @@ RID TextServerFallback::font_get_glyph_texture_rid(const RID &p_font_rid, const
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), RID());
if (!_ensure_glyph(fd, size, p_glyph)) {
int mod = 0;
if (fd->antialiasing == FONT_ANTIALIASING_LCD) {
TextServer::FontLCDSubpixelLayout layout = (TextServer::FontLCDSubpixelLayout)(int)GLOBAL_GET("gui/theme/lcd_subpixel_layout");
if (layout != FONT_LCD_SUBPIXEL_LAYOUT_NONE) {
mod = (layout << 24);
}
}
if (!_ensure_glyph(fd, size, p_glyph | mod)) {
return RID(); // Invalid or non graphicl glyph, do not display errors.
}
@@ -1805,7 +1946,16 @@ Size2 TextServerFallback::font_get_glyph_texture_size(const RID &p_font_rid, con
Vector2i size = _get_size_outline(fd, p_size);
ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), Size2());
if (!_ensure_glyph(fd, size, p_glyph)) {
int mod = 0;
if (fd->antialiasing == FONT_ANTIALIASING_LCD) {
TextServer::FontLCDSubpixelLayout layout = (TextServer::FontLCDSubpixelLayout)(int)GLOBAL_GET("gui/theme/lcd_subpixel_layout");
if (layout != FONT_LCD_SUBPIXEL_LAYOUT_NONE) {
mod = (layout << 24);
}
}
if (!_ensure_glyph(fd, size, p_glyph | mod)) {
return Size2(); // Invalid or non graphicl glyph, do not display errors.
}
@@ -2043,16 +2193,18 @@ void TextServerFallback::font_render_range(const RID &p_font_rid, const Vector2i
if (fd->msdf) {
_ensure_glyph(fd, size, (int32_t)idx);
} else {
if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_QUARTER) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_QUARTER_MAX_SIZE)) {
_ensure_glyph(fd, size, (int32_t)idx | (0 << 27));
_ensure_glyph(fd, size, (int32_t)idx | (1 << 27));
_ensure_glyph(fd, size, (int32_t)idx | (2 << 27));
_ensure_glyph(fd, size, (int32_t)idx | (3 << 27));
} else if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_HALF) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_HALF_MAX_SIZE)) {
_ensure_glyph(fd, size, (int32_t)idx | (1 << 27));
_ensure_glyph(fd, size, (int32_t)idx | (0 << 27));
} else {
_ensure_glyph(fd, size, (int32_t)idx);
for (int aa = 0; aa < ((fd->antialiasing == FONT_ANTIALIASING_LCD) ? FONT_LCD_SUBPIXEL_LAYOUT_MAX : 1); aa++) {
if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_QUARTER) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_QUARTER_MAX_SIZE)) {
_ensure_glyph(fd, size, (int32_t)idx | (0 << 27) | (aa << 24));
_ensure_glyph(fd, size, (int32_t)idx | (1 << 27) | (aa << 24));
_ensure_glyph(fd, size, (int32_t)idx | (2 << 27) | (aa << 24));
_ensure_glyph(fd, size, (int32_t)idx | (3 << 27) | (aa << 24));
} else if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_HALF) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_HALF_MAX_SIZE)) {
_ensure_glyph(fd, size, (int32_t)idx | (1 << 27) | (aa << 24));
_ensure_glyph(fd, size, (int32_t)idx | (0 << 27) | (aa << 24));
} else {
_ensure_glyph(fd, size, (int32_t)idx | (aa << 24));
}
}
}
}
@@ -2073,16 +2225,18 @@ void TextServerFallback::font_render_glyph(const RID &p_font_rid, const Vector2i
if (fd->msdf) {
_ensure_glyph(fd, size, (int32_t)idx);
} else {
if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_QUARTER) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_QUARTER_MAX_SIZE)) {
_ensure_glyph(fd, size, (int32_t)idx | (0 << 27));
_ensure_glyph(fd, size, (int32_t)idx | (1 << 27));
_ensure_glyph(fd, size, (int32_t)idx | (2 << 27));
_ensure_glyph(fd, size, (int32_t)idx | (3 << 27));
} else if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_HALF) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_HALF_MAX_SIZE)) {
_ensure_glyph(fd, size, (int32_t)idx | (1 << 27));
_ensure_glyph(fd, size, (int32_t)idx | (0 << 27));
} else {
_ensure_glyph(fd, size, (int32_t)idx);
for (int aa = 0; aa < ((fd->antialiasing == FONT_ANTIALIASING_LCD) ? FONT_LCD_SUBPIXEL_LAYOUT_MAX : 1); aa++) {
if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_QUARTER) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_QUARTER_MAX_SIZE)) {
_ensure_glyph(fd, size, (int32_t)idx | (0 << 27) | (aa << 24));
_ensure_glyph(fd, size, (int32_t)idx | (1 << 27) | (aa << 24));
_ensure_glyph(fd, size, (int32_t)idx | (2 << 27) | (aa << 24));
_ensure_glyph(fd, size, (int32_t)idx | (3 << 27) | (aa << 24));
} else if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_HALF) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_HALF_MAX_SIZE)) {
_ensure_glyph(fd, size, (int32_t)idx | (1 << 27) | (aa << 24));
_ensure_glyph(fd, size, (int32_t)idx | (0 << 27) | (aa << 24));
} else {
_ensure_glyph(fd, size, (int32_t)idx | (aa << 24));
}
}
}
}
@@ -2098,9 +2252,19 @@ void TextServerFallback::font_draw_glyph(const RID &p_font_rid, const RID &p_can
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
int32_t index = p_index & 0xffffff; // Remove subpixel shifts.
bool lcd_aa = false;
#ifdef MODULE_FREETYPE_ENABLED
if (!fd->msdf && fd->cache[size]->face) {
// LCD layout, bits 24, 25, 26
if (fd->antialiasing == FONT_ANTIALIASING_LCD) {
TextServer::FontLCDSubpixelLayout layout = (TextServer::FontLCDSubpixelLayout)(int)GLOBAL_GET("gui/theme/lcd_subpixel_layout");
if (layout != FONT_LCD_SUBPIXEL_LAYOUT_NONE) {
lcd_aa = true;
index = index | (layout << 24);
}
}
// Subpixel X-shift, bits 27, 28
if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_QUARTER) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_QUARTER_MAX_SIZE)) {
int xshift = (int)(Math::floor(4 * (p_pos.x + 0.125)) - 4 * Math::floor(p_pos.x + 0.125));
index = index | (xshift << 27);
@@ -2122,7 +2286,7 @@ void TextServerFallback::font_draw_glyph(const RID &p_font_rid, const RID &p_can
if (gl.texture_idx != -1) {
Color modulate = p_color;
#ifdef MODULE_FREETYPE_ENABLED
if (fd->cache[size]->face && fd->cache[size]->textures[gl.texture_idx].format == Image::FORMAT_RGBA8) {
if (fd->cache[size]->face && (fd->cache[size]->textures[gl.texture_idx].format == Image::FORMAT_RGBA8) && !lcd_aa) {
modulate.r = modulate.g = modulate.b = 1.0;
}
#endif
@@ -2160,7 +2324,11 @@ void TextServerFallback::font_draw_glyph(const RID &p_font_rid, const RID &p_can
}
cpos += gl.rect.position;
Size2 csize = gl.rect.size;
RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate, false, false);
if (lcd_aa) {
RenderingServer::get_singleton()->canvas_item_add_lcd_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate);
} else {
RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate, false, false);
}
}
}
}
@@ -2176,9 +2344,19 @@ void TextServerFallback::font_draw_glyph_outline(const RID &p_font_rid, const RI
ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
int32_t index = p_index & 0xffffff; // Remove subpixel shifts.
bool lcd_aa = false;
#ifdef MODULE_FREETYPE_ENABLED
if (!fd->msdf && fd->cache[size]->face) {
// LCD layout, bits 24, 25, 26
if (fd->antialiasing == FONT_ANTIALIASING_LCD) {
TextServer::FontLCDSubpixelLayout layout = (TextServer::FontLCDSubpixelLayout)(int)GLOBAL_GET("gui/theme/lcd_subpixel_layout");
if (layout != FONT_LCD_SUBPIXEL_LAYOUT_NONE) {
lcd_aa = true;
index = index | (layout << 24);
}
}
// Subpixel X-shift, bits 27, 28
if ((fd->subpixel_positioning == SUBPIXEL_POSITIONING_ONE_QUARTER) || (fd->subpixel_positioning == SUBPIXEL_POSITIONING_AUTO && size.x <= SUBPIXEL_POSITIONING_ONE_QUARTER_MAX_SIZE)) {
int xshift = (int)(Math::floor(4 * (p_pos.x + 0.125)) - 4 * Math::floor(p_pos.x + 0.125));
index = index | (xshift << 27);
@@ -2238,7 +2416,11 @@ void TextServerFallback::font_draw_glyph_outline(const RID &p_font_rid, const RI
}
cpos += gl.rect.position;
Size2 csize = gl.rect.size;
RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate, false, false);
if (lcd_aa) {
RenderingServer::get_singleton()->canvas_item_add_lcd_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate);
} else {
RenderingServer::get_singleton()->canvas_item_add_texture_rect_region(p_canvas, Rect2(cpos, csize), texture, gl.uv_rect, modulate, false, false);
}
}
}
}