From b32e8d63d8d3bfe65f6692ff15f5a82171a8bf61 Mon Sep 17 00:00:00 2001 From: bruvzg <7645683+bruvzg@users.noreply.github.com> Date: Fri, 11 Mar 2022 09:31:16 +0200 Subject: Add options to embolden and transform font outlines to simulate bold and italic typefaces. --- modules/text_server_adv/text_server_adv.cpp | 69 ++++++++++++++++++++++++---- modules/text_server_adv/text_server_adv.h | 10 ++++- modules/text_server_fb/text_server_fb.cpp | 70 +++++++++++++++++++++++++---- modules/text_server_fb/text_server_fb.h | 10 ++++- 4 files changed, 140 insertions(+), 19 deletions(-) (limited to 'modules') diff --git a/modules/text_server_adv/text_server_adv.cpp b/modules/text_server_adv/text_server_adv.cpp index 1b4512dc60..72a87e5503 100644 --- a/modules/text_server_adv/text_server_adv.cpp +++ b/modules/text_server_adv/text_server_adv.cpp @@ -704,7 +704,7 @@ String TextServerAdvanced::tag_to_name(int32_t p_tag) const { /* Font Glyph Rendering */ /*************************************************************************/ -_FORCE_INLINE_ TextServerAdvanced::FontTexturePosition TextServerAdvanced::find_texture_pos_for_glyph(FontDataForSizeAdvanced *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height) const { +_FORCE_INLINE_ TextServerAdvanced::FontTexturePosition TextServerAdvanced::find_texture_pos_for_glyph(FontDataForSizeAdvanced *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height, bool p_msdf) const { FontTexturePosition ret; ret.index = -1; @@ -769,8 +769,11 @@ _FORCE_INLINE_ TextServerAdvanced::FontTexturePosition TextServerAdvanced::find_ } texsize = next_power_of_2(texsize); - - texsize = MIN(texsize, 4096); + if (p_msdf) { + texsize = MIN(texsize, 2048); + } else { + texsize = MIN(texsize, 1024); + } FontTexture tex; tex.texture_w = texsize; @@ -935,10 +938,10 @@ _FORCE_INLINE_ TextServerAdvanced::FontGlyph TextServerAdvanced::rasterize_msdf( int mw = w + p_rect_margin * 2; int mh = h + p_rect_margin * 2; - ERR_FAIL_COND_V(mw > 4096, FontGlyph()); - ERR_FAIL_COND_V(mh > 4096, FontGlyph()); + ERR_FAIL_COND_V(mw > 1024, FontGlyph()); + ERR_FAIL_COND_V(mh > 1024, FontGlyph()); - FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, 4, Image::FORMAT_RGBA8, mw, mh); + FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, 4, Image::FORMAT_RGBA8, mw, mh, true); ERR_FAIL_COND_V(tex_pos.index < 0, FontGlyph()); FontTexture &tex = p_data->textures.write[tex_pos.index]; @@ -1013,13 +1016,13 @@ _FORCE_INLINE_ TextServerAdvanced::FontGlyph TextServerAdvanced::rasterize_bitma int mw = w + p_rect_margin * 2; int mh = h + p_rect_margin * 2; - ERR_FAIL_COND_V(mw > 4096, FontGlyph()); - ERR_FAIL_COND_V(mh > 4096, FontGlyph()); + ERR_FAIL_COND_V(mw > 1024, FontGlyph()); + ERR_FAIL_COND_V(mh > 1024, 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); + FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, color_size, require_format, mw, mh, false); ERR_FAIL_COND_V(tex_pos.index < 0, FontGlyph()); // Fit character in char texture. @@ -1155,6 +1158,16 @@ _FORCE_INLINE_ bool TextServerAdvanced::_ensure_glyph(FontDataAdvanced *p_font_d } } + if (p_font_data->embolden != 0.f) { + FT_Pos strength = p_font_data->embolden * p_size.x * 4; // 26.6 fractional units (1 / 64). + FT_Outline_Embolden(&fd->face->glyph->outline, strength); + } + + if (p_font_data->transform != Transform2D()) { + FT_Matrix mat = { FT_Fixed(p_font_data->transform[0][0] * 65536), FT_Fixed(p_font_data->transform[0][1] * 65536), FT_Fixed(p_font_data->transform[1][0] * 65536), FT_Fixed(p_font_data->transform[1][1] * 65536) }; // 16.16 fractional units (1 / 65536). + FT_Outline_Transform(&fd->face->glyph->outline, &mat); + } + 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); @@ -1874,6 +1887,44 @@ TextServer::SubpixelPositioning TextServerAdvanced::font_get_subpixel_positionin return fd->subpixel_positioning; } +void TextServerAdvanced::font_set_embolden(RID p_font_rid, float p_strength) { + FontDataAdvanced *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND(!fd); + + MutexLock lock(fd->mutex); + if (fd->embolden != p_strength) { + _font_clear_cache(fd); + fd->embolden = p_strength; + } +} + +float TextServerAdvanced::font_get_embolden(RID p_font_rid) const { + FontDataAdvanced *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND_V(!fd, 0.f); + + MutexLock lock(fd->mutex); + return fd->embolden; +} + +void TextServerAdvanced::font_set_transform(RID p_font_rid, Transform2D p_transform) { + FontDataAdvanced *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND(!fd); + + MutexLock lock(fd->mutex); + if (fd->transform != p_transform) { + _font_clear_cache(fd); + fd->transform = p_transform; + } +} + +Transform2D TextServerAdvanced::font_get_transform(RID p_font_rid) const { + FontDataAdvanced *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND_V(!fd, Transform2D()); + + MutexLock lock(fd->mutex); + return fd->transform; +} + void TextServerAdvanced::font_set_variation_coordinates(RID p_font_rid, const Dictionary &p_variation_coordinates) { FontDataAdvanced *fd = font_owner.get_or_null(p_font_rid); ERR_FAIL_COND(!fd); diff --git a/modules/text_server_adv/text_server_adv.h b/modules/text_server_adv/text_server_adv.h index 7841a15cd3..f63ff645bf 100644 --- a/modules/text_server_adv/text_server_adv.h +++ b/modules/text_server_adv/text_server_adv.h @@ -177,6 +177,8 @@ class TextServerAdvanced : public TextServer { TextServer::SubpixelPositioning subpixel_positioning = TextServer::SUBPIXEL_POSITIONING_AUTO; Dictionary variation_coordinates; float oversampling = 0.f; + float embolden = 0.f; + Transform2D transform; uint32_t style_flags = 0; String font_name; @@ -208,7 +210,7 @@ class TextServerAdvanced : public TextServer { } }; - _FORCE_INLINE_ FontTexturePosition find_texture_pos_for_glyph(FontDataForSizeAdvanced *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height) const; + _FORCE_INLINE_ FontTexturePosition find_texture_pos_for_glyph(FontDataForSizeAdvanced *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height, bool p_msdf) const; #ifdef MODULE_MSDFGEN_ENABLED _FORCE_INLINE_ FontGlyph rasterize_msdf(FontDataAdvanced *p_font_data, FontDataForSizeAdvanced *p_data, int p_pixel_range, int p_rect_margin, FT_Outline *outline, const Vector2 &advance) const; #endif @@ -383,6 +385,12 @@ public: virtual void font_set_subpixel_positioning(RID p_font_rid, SubpixelPositioning p_subpixel) override; virtual SubpixelPositioning font_get_subpixel_positioning(RID p_font_rid) const override; + virtual void font_set_embolden(RID p_font_rid, float p_strength) override; + virtual float font_get_embolden(RID p_font_rid) const override; + + virtual void font_set_transform(RID p_font_rid, Transform2D p_transform) override; + virtual Transform2D font_get_transform(RID p_font_rid) const override; + virtual void font_set_variation_coordinates(RID p_font_rid, const Dictionary &p_variation_coordinates) override; virtual Dictionary font_get_variation_coordinates(RID p_font_rid) const override; diff --git a/modules/text_server_fb/text_server_fb.cpp b/modules/text_server_fb/text_server_fb.cpp index e6f9bcf131..5a4b20b2ef 100644 --- a/modules/text_server_fb/text_server_fb.cpp +++ b/modules/text_server_fb/text_server_fb.cpp @@ -155,7 +155,7 @@ String TextServerFallback::tag_to_name(int32_t p_tag) const { /* Font Glyph Rendering */ /*************************************************************************/ -_FORCE_INLINE_ TextServerFallback::FontTexturePosition TextServerFallback::find_texture_pos_for_glyph(FontDataForSizeFallback *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height) const { +_FORCE_INLINE_ TextServerFallback::FontTexturePosition TextServerFallback::find_texture_pos_for_glyph(FontDataForSizeFallback *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height, bool p_msdf) const { FontTexturePosition ret; ret.index = -1; @@ -221,7 +221,11 @@ _FORCE_INLINE_ TextServerFallback::FontTexturePosition TextServerFallback::find_ texsize = next_power_of_2(texsize); - texsize = MIN(texsize, 4096); + if (p_msdf) { + texsize = MIN(texsize, 2048); + } else { + texsize = MIN(texsize, 1024); + } FontTexture tex; tex.texture_w = texsize; @@ -386,10 +390,10 @@ _FORCE_INLINE_ TextServerFallback::FontGlyph TextServerFallback::rasterize_msdf( int mw = w + p_rect_margin * 2; int mh = h + p_rect_margin * 2; - ERR_FAIL_COND_V(mw > 4096, FontGlyph()); - ERR_FAIL_COND_V(mh > 4096, FontGlyph()); + ERR_FAIL_COND_V(mw > 1024, FontGlyph()); + ERR_FAIL_COND_V(mh > 1024, FontGlyph()); - FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, 4, Image::FORMAT_RGBA8, mw, mh); + FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, 4, Image::FORMAT_RGBA8, mw, mh, true); ERR_FAIL_COND_V(tex_pos.index < 0, FontGlyph()); FontTexture &tex = p_data->textures.write[tex_pos.index]; @@ -464,13 +468,13 @@ _FORCE_INLINE_ TextServerFallback::FontGlyph TextServerFallback::rasterize_bitma int mw = w + p_rect_margin * 2; int mh = h + p_rect_margin * 2; - ERR_FAIL_COND_V(mw > 4096, FontGlyph()); - ERR_FAIL_COND_V(mh > 4096, FontGlyph()); + ERR_FAIL_COND_V(mw > 1024, FontGlyph()); + ERR_FAIL_COND_V(mh > 1024, 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); + FontTexturePosition tex_pos = find_texture_pos_for_glyph(p_data, color_size, require_format, mw, mh, false); ERR_FAIL_COND_V(tex_pos.index < 0, FontGlyph()); // Fit character in char texture. @@ -586,6 +590,8 @@ _FORCE_INLINE_ bool TextServerFallback::_ensure_glyph(FontDataFallback *p_font_d flags |= FT_LOAD_COLOR; } + glyph_index = FT_Get_Char_Index(fd->face, glyph_index); + FT_Fixed v, h; FT_Get_Advance(fd->face, glyph_index, flags, &h); FT_Get_Advance(fd->face, glyph_index, flags | FT_LOAD_VERTICAL_LAYOUT, &v); @@ -606,6 +612,16 @@ _FORCE_INLINE_ bool TextServerFallback::_ensure_glyph(FontDataFallback *p_font_d } } + if (p_font_data->embolden != 0.f) { + FT_Pos strength = p_font_data->embolden * p_size.x * 4; // 26.6 fractional units (1 / 64). + FT_Outline_Embolden(&fd->face->glyph->outline, strength); + } + + if (p_font_data->transform != Transform2D()) { + FT_Matrix mat = { FT_Fixed(p_font_data->transform[0][0] * 65536), FT_Fixed(p_font_data->transform[0][1] * 65536), FT_Fixed(p_font_data->transform[1][0] * 65536), FT_Fixed(p_font_data->transform[1][1] * 65536) }; // 16.16 fractional units (1 / 65536). + FT_Outline_Transform(&fd->face->glyph->outline, &mat); + } + 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); @@ -1044,6 +1060,44 @@ TextServer::SubpixelPositioning TextServerFallback::font_get_subpixel_positionin return fd->subpixel_positioning; } +void TextServerFallback::font_set_embolden(RID p_font_rid, float p_strength) { + FontDataFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND(!fd); + + MutexLock lock(fd->mutex); + if (fd->embolden != p_strength) { + _font_clear_cache(fd); + fd->embolden = p_strength; + } +} + +float TextServerFallback::font_get_embolden(RID p_font_rid) const { + FontDataFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND_V(!fd, 0.f); + + MutexLock lock(fd->mutex); + return fd->embolden; +} + +void TextServerFallback::font_set_transform(RID p_font_rid, Transform2D p_transform) { + FontDataFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND(!fd); + + MutexLock lock(fd->mutex); + if (fd->transform != p_transform) { + _font_clear_cache(fd); + fd->transform = p_transform; + } +} + +Transform2D TextServerFallback::font_get_transform(RID p_font_rid) const { + FontDataFallback *fd = font_owner.get_or_null(p_font_rid); + ERR_FAIL_COND_V(!fd, Transform2D()); + + MutexLock lock(fd->mutex); + return fd->transform; +} + void TextServerFallback::font_set_variation_coordinates(RID p_font_rid, const Dictionary &p_variation_coordinates) { FontDataFallback *fd = font_owner.get_or_null(p_font_rid); ERR_FAIL_COND(!fd); diff --git a/modules/text_server_fb/text_server_fb.h b/modules/text_server_fb/text_server_fb.h index 91afd02ae9..d4c7b5666e 100644 --- a/modules/text_server_fb/text_server_fb.h +++ b/modules/text_server_fb/text_server_fb.h @@ -142,6 +142,8 @@ class TextServerFallback : public TextServer { TextServer::SubpixelPositioning subpixel_positioning = TextServer::SUBPIXEL_POSITIONING_AUTO; Dictionary variation_coordinates; float oversampling = 0.f; + float embolden = 0.f; + Transform2D transform; uint32_t style_flags = 0; String font_name; @@ -172,7 +174,7 @@ class TextServerFallback : public TextServer { } }; - _FORCE_INLINE_ FontTexturePosition find_texture_pos_for_glyph(FontDataForSizeFallback *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height) const; + _FORCE_INLINE_ FontTexturePosition find_texture_pos_for_glyph(FontDataForSizeFallback *p_data, int p_color_size, Image::Format p_image_format, int p_width, int p_height, bool p_msdf) const; #ifdef MODULE_MSDFGEN_ENABLED _FORCE_INLINE_ FontGlyph rasterize_msdf(FontDataFallback *p_font_data, FontDataForSizeFallback *p_data, int p_pixel_range, int p_rect_margin, FT_Outline *outline, const Vector2 &advance) const; #endif @@ -294,6 +296,12 @@ public: virtual void font_set_subpixel_positioning(RID p_font_rid, SubpixelPositioning p_subpixel) override; virtual SubpixelPositioning font_get_subpixel_positioning(RID p_font_rid) const override; + virtual void font_set_embolden(RID p_font_rid, float p_strength) override; + virtual float font_get_embolden(RID p_font_rid) const override; + + virtual void font_set_transform(RID p_font_rid, Transform2D p_transform) override; + virtual Transform2D font_get_transform(RID p_font_rid) const override; + virtual void font_set_variation_coordinates(RID p_font_rid, const Dictionary &p_variation_coordinates) override; virtual Dictionary font_get_variation_coordinates(RID p_font_rid) const override; -- cgit v1.2.3