85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include "scode.h"
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#include "config.h"
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#include "log.h"
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#include "fontengine.h"
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static FT_LIbrary library;
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static FT_Face stdfont;
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static void fonteng_cleanup(void)
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{
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FT_Done_Face(stdfont);
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FT_Done_FreeType(library);
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}
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HRESULT FontEng_setup(void)
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{
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HRESULT hr = S_OK;
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FT_Error err;
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err = FT_Init_FreeType(&library);
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if (err != 0)
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{
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Log(LFATAL, "Unable to initialize Freetype (%d)", err);
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return E_FAIL;
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}
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err = FT_New_Face(library, "/usr/local/share/fonts/opentype/Inconsolata.otf", 0, &stdfont);
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if (err != 0)
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{
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Log(LFATAL, "Unable to load font (%d)", err);
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hr = E_FAIL;
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goto error_0;
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}
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err = FT_Set_Pixel_Sizes(stdfont, 0, 16);
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if (err != 0)
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{
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Log(LFATAL, "Unable to set font size (%d)", err);
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hr = E_FAIL;
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goto error_1;
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}
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hr = Config_exitfunc(fonteng_cleanup);
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if (FAILED(hr))
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fonteng_cleanup();
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return hr;
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error_1:
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FT_Done_Face(stdfont);
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error_0:
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FT_Done_FreeType(library);
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return hr;
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}
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HRESULT FontEng_do_text_out(INT32 x, INT32 y, PCSTR pstr, TEXTOUTFUNC renderfunc)
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{
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HRESULT hr = S_OK;
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FT_GlyphSlot slot = stdfont->glyph;
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FT_UInt glyph_index;
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FT_Error err;
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while (*pstr)
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{
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glyph_index = FT_Get_Char_Index(stdfont, *pstr++);
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err = FT_Load_Glyph(stdfont, glyph_index, FT_LOAD_DEFAULT);
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if (err != 0)
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{
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hr = E_FAIL;
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break;
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}
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err = FT_Render_Glyph(stdfont->glyph, FT_RENDER_MODE_NORMAL);
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if (err != 0)
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{
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hr = E_FAIL;
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break;
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}
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(*renderfunc)(x, y, slot->bitmap.width, slot->bitmap.rows, slot->bitmap.buffer);
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x += slot->advance.x >> 6;
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y += slot->advance.y >> 6;
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}
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return hr;
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}
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