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Diffstat (limited to 'Build/source/libs/libttf/ttraster.h')
-rw-r--r-- | Build/source/libs/libttf/ttraster.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/Build/source/libs/libttf/ttraster.h b/Build/source/libs/libttf/ttraster.h new file mode 100644 index 00000000000..66c8fef6e73 --- /dev/null +++ b/Build/source/libs/libttf/ttraster.h @@ -0,0 +1,127 @@ +/******************************************************************* + * + * ttraster.h v 1.4 + * + * The FreeType glyph rasterizer. + * + * Copyright 1996-1999 by + * David Turner, Robert Wilhelm, and Werner Lemberg + * + * This file is part of the FreeType project, and may only be used + * modified and distributed under the terms of the FreeType project + * license, LICENSE.TXT. By continuing to use, modify, or distribute + * this file you indicate that you have read the license and + * understand and accept it fully. + * + * NOTES: + * + * This version supports the following: + * + * - direct grayscaling + * - sub-banding + * - drop-out modes 4 and 5 + * - second pass for complete drop-out control (bitmap only) + * - variable precision + * + * + * Changes between 1.4 and 1.3: + * + * Mainly performance tunings: + * + * - Line_Down() and Bezier_Down() now use the functions Line_Up() + * and Bezier_Up() to do their work. + * - optimized Split_Bezier() + * - optimized linked lists used during sweeps + * + * Changes between 1.2 and 1.3: + * + * - made the engine optionaly re-entrant. Saves a lot + * of code for a moderate performance hit. + * + ******************************************************************/ + +#ifndef TTRASTER_H +#define TTRASTER_H + +#include "ttconfig.h" +#include "freetype.h" /* for TT_Outline */ +#include "ttengine.h" + +#ifdef __cplusplus +extern "C" { +#endif + + /* We provide two different builds of the scan-line converter */ + /* The static build uses global variables and isn't */ + /* re-entrant. */ + /* The indirect build is re-entrant but accesses all variables */ + /* indirectly. */ + /* */ + /* As a consequence, the indirect build is about 10% slower */ + /* than the static one on a _Pentium_ (this could get worse */ + /* on older processors), but the code size is reduced by */ + /* more than 30% ! */ + /* */ + /* The indirect build is now the default, defined in */ + /* ttconfig.h. Be careful if you experiment with this. */ + + /* Note also that, though its code can be re-entrant, the */ + /* component is always used in thread-safe mode. This is */ + /* simply due to the fact that we want to use a single */ + /* render pool (of 64 Kb), and not to waste memory. */ + +#ifdef TT_STATIC_RASTER + +#define RAS_ARGS /* void */ +#define RAS_ARG /* void */ + +#define RAS_VARS /* void */ +#define RAS_VAR /* void */ + +#else + +#define RAS_ARGS TRaster_Instance* raster, +#define RAS_ARG TRaster_Instance* raster + +#define RAS_VARS raster, +#define RAS_VAR raster + +#endif + + + struct TRaster_Instance_; + typedef struct TRaster_Instance_ TRaster_Instance; + + /* Render one glyph in the target bitmap, using drop-out control */ + /* mode 'scan'. */ + LOCAL_DEF + TT_Error Render_Glyph( RAS_ARGS TT_Outline* glyph, + TT_Raster_Map* target ); + +#ifdef TT_CONFIG_OPTION_GRAY_SCALING + /* Render one gray-level glyph in the target pixmap. */ + /* Palette points to an array of 5 colors used for the rendering. */ + /* Use NULL to reuse the last palette. Default is VGA graylevels. */ + LOCAL_DEF + TT_Error Render_Gray_Glyph( RAS_ARGS TT_Outline* glyph, + TT_Raster_Map* target, + Byte* palette ); +#endif + + /* Initialize rasterizer */ + LOCAL_DEF + TT_Error TTRaster_Init( PEngine_Instance engine ); + + /* Finalize it */ + LOCAL_DEF + TT_Error TTRaster_Done( PEngine_Instance engine ); + + +#ifdef __cplusplus +} +#endif + +#endif /* TTRASTER_H */ + + +/* END */ |