odin-blend2d

Odin bindings to Blend2D
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glyphbuffer.odin (3287B)

      1 // This file is part of Blend2D project <https://blend2d.com>
      2 //
      3 // See blend2d.h or LICENSE.md for license and copyright information
      4 // SPDX-License-Identifier: Zlib
      5 package blend2d
      6 
      7 import "core:c"
      8 
      9 when ODIN_OS == .Windows {
     10 	foreign import lib "blend2d.lib"
     11 } else when ODIN_OS == .Darwin {
     12 	foreign import lib "libblend2d.a"
     13 } else when ODIN_OS == .Linux {
     14 	foreign import lib "libblend2d.a"
     15 }
     16 
     17 
     18 //! Glyph buffer [Impl].
     19 //!
     20 //! \note This is not a `BLObjectImpl` compatible Impl.
     21 GlyphBufferImpl :: struct {
     22 	using _: struct #raw_union {
     23 		using _: struct {
     24 			//! Text (UCS4 code-points) or glyph content.
     25 			content: ^u32,
     26 
     27 			//! Glyph placement data.
     28 			placement_data: ^GlyphPlacement,
     29 
     30 			//! Number of either code points or glyph indexes in the glyph-buffer.
     31 			size: c.size_t,
     32 
     33 			//! Reserved, used exclusively by BLGlyphRun.
     34 			reserved: u32,
     35 
     36 			//! Flags shared between BLGlyphRun and BLGlyphBuffer.
     37 			flags: u32,
     38 		},
     39 
     40 		//! Glyph run data that can be passed directly to the rendering context.
     41 		//!
     42 		//! Glyph run shares data with other members like `content`, `placement_data`, `size`, and `flags`. When working
     43 		//! with data it's better to access these members directly as they are typed, whereas \ref BLGlyphRun stores
     44 		//! pointers as `const void*` as it offers more flexibility, which \ref BLGlyphRun doesn't need.
     45 		glyph_run: GlyphRun,
     46 	},
     47 
     48 	//! Glyph info data - additional information of each code-point or glyph.
     49 	info_data: ^GlyphInfo,
     50 }
     51 
     52 //! Glyph buffer [C API].
     53 GlyphBufferCore :: struct {
     54 	impl:                   ^GlyphBufferImpl,
     55 	BL_DEFINE_OBJECT_DCAST: proc "c" () -> i32,
     56 }
     57 
     58 @(default_calling_convention="c", link_prefix="bl_")
     59 foreign lib {
     60 	glyph_buffer_init                   :: proc(self: ^GlyphBufferCore) -> Result ---
     61 	glyph_buffer_init_move              :: proc(self: ^GlyphBufferCore, other: ^GlyphBufferCore) -> Result ---
     62 	glyph_buffer_destroy                :: proc(self: ^GlyphBufferCore) -> Result ---
     63 	glyph_buffer_reset                  :: proc(self: ^GlyphBufferCore) -> Result ---
     64 	glyph_buffer_clear                  :: proc(self: ^GlyphBufferCore) -> Result ---
     65 	glyph_buffer_get_size               :: proc(self: ^GlyphBufferCore) -> c.size_t ---
     66 	glyph_buffer_get_flags              :: proc(self: ^GlyphBufferCore) -> u32 ---
     67 	glyph_buffer_get_glyph_run          :: proc(self: ^GlyphBufferCore) -> ^GlyphRun ---
     68 	glyph_buffer_get_content            :: proc(self: ^GlyphBufferCore) -> ^u32 ---
     69 	glyph_buffer_get_info_data          :: proc(self: ^GlyphBufferCore) -> ^GlyphInfo ---
     70 	glyph_buffer_get_placement_data     :: proc(self: ^GlyphBufferCore) -> ^GlyphPlacement ---
     71 	glyph_buffer_set_text               :: proc(self: ^GlyphBufferCore, text_data: rawptr, size: c.size_t, encoding: TextEncoding) -> Result ---
     72 	glyph_buffer_set_glyphs             :: proc(self: ^GlyphBufferCore, glyph_data: ^u32, size: c.size_t) -> Result ---
     73 	glyph_buffer_set_glyphs_from_struct :: proc(self: ^GlyphBufferCore, glyph_data: rawptr, size: c.size_t, glyph_id_size: c.size_t, glyph_id_advance: c.intptr_t) -> Result ---
     74 	glyph_buffer_set_debug_sink         :: proc(self: ^GlyphBufferCore, sink: DebugMessageSinkFunc, user_data: rawptr) -> Result ---
     75 	glyph_buffer_reset_debug_sink       :: proc(self: ^GlyphBufferCore) -> Result ---
     76 }
     77