diff options
Diffstat (limited to 'third_party/freetype/src/raster/ftrend1.c')
-rw-r--r-- | third_party/freetype/src/raster/ftrend1.c | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/third_party/freetype/src/raster/ftrend1.c b/third_party/freetype/src/raster/ftrend1.c deleted file mode 100644 index 1a83e9e477..0000000000 --- a/third_party/freetype/src/raster/ftrend1.c +++ /dev/null @@ -1,254 +0,0 @@ -/***************************************************************************/ -/* */ -/* ftrend1.c */ -/* */ -/* The FreeType glyph rasterizer interface (body). */ -/* */ -/* Copyright 1996-2017 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. */ -/* */ -/***************************************************************************/ - - -#include <ft2build.h> -#include FT_INTERNAL_DEBUG_H -#include FT_INTERNAL_OBJECTS_H -#include FT_OUTLINE_H -#include "ftrend1.h" -#include "ftraster.h" -#include "rastpic.h" - -#include "rasterrs.h" - - - /* initialize renderer -- init its raster */ - static FT_Error - ft_raster1_init( FT_Renderer render ) - { - FT_Library library = FT_MODULE_LIBRARY( render ); - - - render->clazz->raster_class->raster_reset( render->raster, - library->raster_pool, - library->raster_pool_size ); - - return FT_Err_Ok; - } - - - /* set render-specific mode */ - static FT_Error - ft_raster1_set_mode( FT_Renderer render, - FT_ULong mode_tag, - FT_Pointer data ) - { - /* we simply pass it to the raster */ - return render->clazz->raster_class->raster_set_mode( render->raster, - mode_tag, - data ); - } - - - /* transform a given glyph image */ - static FT_Error - ft_raster1_transform( FT_Renderer render, - FT_GlyphSlot slot, - const FT_Matrix* matrix, - const FT_Vector* delta ) - { - FT_Error error = FT_Err_Ok; - - - if ( slot->format != render->glyph_format ) - { - error = FT_THROW( Invalid_Argument ); - goto Exit; - } - - if ( matrix ) - FT_Outline_Transform( &slot->outline, matrix ); - - if ( delta ) - FT_Outline_Translate( &slot->outline, delta->x, delta->y ); - - Exit: - return error; - } - - - /* return the glyph's control box */ - static void - ft_raster1_get_cbox( FT_Renderer render, - FT_GlyphSlot slot, - FT_BBox* cbox ) - { - FT_ZERO( cbox ); - - if ( slot->format == render->glyph_format ) - FT_Outline_Get_CBox( &slot->outline, cbox ); - } - - - /* convert a slot's glyph image into a bitmap */ - static FT_Error - ft_raster1_render( FT_Renderer render, - FT_GlyphSlot slot, - FT_Render_Mode mode, - const FT_Vector* origin ) - { - FT_Error error; - FT_Outline* outline; - FT_BBox cbox, cbox0; - FT_UInt width, height, pitch; - FT_Bitmap* bitmap; - FT_Memory memory; - - FT_Raster_Params params; - - - /* check glyph image format */ - if ( slot->format != render->glyph_format ) - { - error = FT_THROW( Invalid_Argument ); - goto Exit; - } - - /* check rendering mode */ - if ( mode != FT_RENDER_MODE_MONO ) - { - /* raster1 is only capable of producing monochrome bitmaps */ - return FT_THROW( Cannot_Render_Glyph ); - } - - outline = &slot->outline; - - /* translate the outline to the new origin if needed */ - if ( origin ) - FT_Outline_Translate( outline, origin->x, origin->y ); - - /* compute the control box, and grid fit it */ - FT_Outline_Get_CBox( outline, &cbox0 ); - - /* undocumented but confirmed: bbox values get rounded */ -#if 1 - cbox.xMin = FT_PIX_ROUND( cbox0.xMin ); - cbox.yMin = FT_PIX_ROUND( cbox0.yMin ); - cbox.xMax = FT_PIX_ROUND( cbox0.xMax ); - cbox.yMax = FT_PIX_ROUND( cbox0.yMax ); -#else - cbox.xMin = FT_PIX_FLOOR( cbox.xMin ); - cbox.yMin = FT_PIX_FLOOR( cbox.yMin ); - cbox.xMax = FT_PIX_CEIL( cbox.xMax ); - cbox.yMax = FT_PIX_CEIL( cbox.yMax ); -#endif - - /* If either `width' or `height' round to 0, try */ - /* explicitly rounding up/down. In the case of */ - /* glyphs containing only one very narrow feature, */ - /* this gives the drop-out compensation in the scan */ - /* conversion code a chance to do its stuff. */ - width = (FT_UInt)( ( cbox.xMax - cbox.xMin ) >> 6 ); - if ( width == 0 ) - { - cbox.xMin = FT_PIX_FLOOR( cbox0.xMin ); - cbox.xMax = FT_PIX_CEIL( cbox0.xMax ); - - width = (FT_UInt)( ( cbox.xMax - cbox.xMin ) >> 6 ); - } - - height = (FT_UInt)( ( cbox.yMax - cbox.yMin ) >> 6 ); - if ( height == 0 ) - { - cbox.yMin = FT_PIX_FLOOR( cbox0.yMin ); - cbox.yMax = FT_PIX_CEIL( cbox0.yMax ); - - height = (FT_UInt)( ( cbox.yMax - cbox.yMin ) >> 6 ); - } - - if ( width > FT_USHORT_MAX || height > FT_USHORT_MAX ) - { - error = FT_THROW( Invalid_Argument ); - goto Exit; - } - - bitmap = &slot->bitmap; - memory = render->root.memory; - - /* release old bitmap buffer */ - if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) - { - FT_FREE( bitmap->buffer ); - slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP; - } - - pitch = ( ( width + 15 ) >> 4 ) << 1; - bitmap->pixel_mode = FT_PIXEL_MODE_MONO; - - bitmap->width = width; - bitmap->rows = height; - bitmap->pitch = (int)pitch; - - if ( FT_ALLOC_MULT( bitmap->buffer, pitch, height ) ) - goto Exit; - - slot->internal->flags |= FT_GLYPH_OWN_BITMAP; - - /* translate outline to render it into the bitmap */ - FT_Outline_Translate( outline, -cbox.xMin, -cbox.yMin ); - - /* set up parameters */ - params.target = bitmap; - params.source = outline; - params.flags = 0; - - /* render outline into the bitmap */ - error = render->raster_render( render->raster, ¶ms ); - - FT_Outline_Translate( outline, cbox.xMin, cbox.yMin ); - - if ( error ) - goto Exit; - - slot->format = FT_GLYPH_FORMAT_BITMAP; - slot->bitmap_left = (FT_Int)( cbox.xMin >> 6 ); - slot->bitmap_top = (FT_Int)( cbox.yMax >> 6 ); - - Exit: - return error; - } - - - FT_DEFINE_RENDERER( - ft_raster1_renderer_class, - - FT_MODULE_RENDERER, - sizeof ( FT_RendererRec ), - - "raster1", - 0x10000L, - 0x20000L, - - NULL, /* module specific interface */ - - (FT_Module_Constructor)ft_raster1_init, /* module_init */ - (FT_Module_Destructor) NULL, /* module_done */ - (FT_Module_Requester) NULL, /* get_interface */ - - FT_GLYPH_FORMAT_OUTLINE, - - (FT_Renderer_RenderFunc) ft_raster1_render, /* render_glyph */ - (FT_Renderer_TransformFunc)ft_raster1_transform, /* transform_glyph */ - (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox, /* get_glyph_cbox */ - (FT_Renderer_SetModeFunc) ft_raster1_set_mode, /* set_mode */ - - (FT_Raster_Funcs*)&FT_STANDARD_RASTER_GET /* raster_class */ - ) - - -/* END */ |