A GlyphRenderDataTexels holds texel data for rendering a glyph. Such texel data can be for both distance field and coverage glyph rendeding. More...
#include <glyph_render_data_texels.hpp>
Public Types | |
| enum | attribute_values_t { glyph_size_xy, glyph_texel_data_offset } |
Public Member Functions | |
| GlyphRenderDataTexels (void) | |
| virtual c_array< const c_string > | render_info_labels (void) const |
| void | resize (ivec2 sz) |
| ivec2 | resolution (void) const |
| c_array< const uint8_t > | texel_data (void) const |
| c_array< uint8_t > | texel_data (void) |
| virtual enum fastuidraw::return_code | upload_to_atlas (GlyphAtlasProxy &atlas_proxy, GlyphAttribute::Array &attributes, c_array< float > render_costs) const |
Detailed Description
A GlyphRenderDataTexels holds texel data for rendering a glyph. Such texel data can be for both distance field and coverage glyph rendeding.
Definition at line 37 of file glyph_render_data_texels.hpp.
Member Enumeration Documentation
◆ attribute_values_t
This enumeration describes the meaning of the attributes.
| Enumerator | |
|---|---|
| glyph_size_xy | Dimensions of the glyph as packed by GlyphAttribute::rect_glyph_layout |
| glyph_texel_data_offset | Location of the texel data within the GlyphAtlas |
Definition at line 44 of file glyph_render_data_texels.hpp.
Constructor & Destructor Documentation
◆ GlyphRenderDataTexels()
| fastuidraw::GlyphRenderDataTexels::GlyphRenderDataTexels | ( | void | ) |
Ctor, initialized the resolution as (0,0).
Member Function Documentation
◆ render_info_labels()
|
virtual |
To be implemented by a derived class to return the strings used in GlyphRenderCostInfo::m_value; The pointer behind each of the string in the return c_array returned are required to stay valid even after the GlyphRenderData is deleted. The expectation is that the returned c_array is just c_array wrapping over a static constant array of string.
Implements fastuidraw::GlyphRenderData.
◆ resize()
| void fastuidraw::GlyphRenderDataTexels::resize | ( | ivec2 | sz | ) |
Change the resolution
- Parameters
-
sz new resolution
◆ resolution()
| ivec2 fastuidraw::GlyphRenderDataTexels::resolution | ( | void | ) | const |
Returns the resolution of the glyph.
◆ texel_data() [1/2]
| c_array<const uint8_t> fastuidraw::GlyphRenderDataTexels::texel_data | ( | void | ) | const |
Returns the texel data for rendering. The texel (x,y) is located at I where I is given by I = x + y * resolution().x(). Value is an 8-bit value.
◆ texel_data() [2/2]
| c_array<uint8_t> fastuidraw::GlyphRenderDataTexels::texel_data | ( | void | ) |
Returns the coverage values for rendering. The texel (x,y) is located at I where I is given by I = x + y * resolution().x(). Value is an 8-bit value.
◆ upload_to_atlas()
|
virtual |
To be implemented by a derived class to upload data to a GlyphAtlas.
- Parameters
-
atlas_proxy GlyphAtlasProxy to which to upload data attributes (output) glyph attributes (see Glyph::attributes()) render_costs (output) an array of size render_info().size() to which to write the render costs for each entry in render_info().
Implements fastuidraw::GlyphRenderData.
The documentation for this class was generated from the following file:
- /home/kevin/fastuidraw.krogueintel/inc/fastuidraw/text/glyph_render_data_texels.hpp
