-/***************************************************************************/\r
-/* */\r
-/* ftrend1.c */\r
-/* */\r
-/* The FreeType glyph rasterizer interface (body). */\r
-/* */\r
-/* Copyright 1996-2001, 2002, 2003, 2005, 2006 by */\r
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */\r
-/* */\r
-/* This file is part of the FreeType project, and may only be used, */\r
-/* modified, and distributed under the terms of the FreeType project */\r
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */\r
-/* this file you indicate that you have read the license and */\r
-/* understand and accept it fully. */\r
-/* */\r
-/***************************************************************************/\r
-\r
-\r
-#include <ft2build.h>\r
-#include FT_INTERNAL_OBJECTS_H\r
-#include FT_OUTLINE_H\r
-#include "ftrend1.h"\r
-#include "ftraster.h"\r
-\r
-#include "rasterrs.h"\r
-\r
-\r
- /* initialize renderer -- init its raster */\r
- static FT_Error\r
- ft_raster1_init( FT_Renderer render )\r
- {\r
- FT_Library library = FT_MODULE_LIBRARY( render );\r
-\r
-\r
- render->clazz->raster_class->raster_reset( render->raster,\r
- library->raster_pool,\r
- library->raster_pool_size );\r
-\r
- return Raster_Err_Ok;\r
- }\r
-\r
-\r
- /* set render-specific mode */\r
- static FT_Error\r
- ft_raster1_set_mode( FT_Renderer render,\r
- FT_ULong mode_tag,\r
- FT_Pointer data )\r
- {\r
- /* we simply pass it to the raster */\r
- return render->clazz->raster_class->raster_set_mode( render->raster,\r
- mode_tag,\r
- data );\r
- }\r
-\r
-\r
- /* transform a given glyph image */\r
- static FT_Error\r
- ft_raster1_transform( FT_Renderer render,\r
- FT_GlyphSlot slot,\r
- const FT_Matrix* matrix,\r
- const FT_Vector* delta )\r
- {\r
- FT_Error error = Raster_Err_Ok;\r
-\r
-\r
- if ( slot->format != render->glyph_format )\r
- {\r
- error = Raster_Err_Invalid_Argument;\r
- goto Exit;\r
- }\r
-\r
- if ( matrix )\r
- FT_Outline_Transform( &slot->outline, matrix );\r
-\r
- if ( delta )\r
- FT_Outline_Translate( &slot->outline, delta->x, delta->y );\r
-\r
- Exit:\r
- return error;\r
- }\r
-\r
-\r
- /* return the glyph's control box */\r
- static void\r
- ft_raster1_get_cbox( FT_Renderer render,\r
- FT_GlyphSlot slot,\r
- FT_BBox* cbox )\r
- {\r
- FT_MEM_ZERO( cbox, sizeof ( *cbox ) );\r
-\r
- if ( slot->format == render->glyph_format )\r
- FT_Outline_Get_CBox( &slot->outline, cbox );\r
- }\r
-\r
-\r
- /* convert a slot's glyph image into a bitmap */\r
- static FT_Error\r
- ft_raster1_render( FT_Renderer render,\r
- FT_GlyphSlot slot,\r
- FT_Render_Mode mode,\r
- const FT_Vector* origin )\r
- {\r
- FT_Error error;\r
- FT_Outline* outline;\r
- FT_BBox cbox;\r
- FT_UInt width, height, pitch;\r
- FT_Bitmap* bitmap;\r
- FT_Memory memory;\r
-\r
- FT_Raster_Params params;\r
-\r
-\r
- /* check glyph image format */\r
- if ( slot->format != render->glyph_format )\r
- {\r
- error = Raster_Err_Invalid_Argument;\r
- goto Exit;\r
- }\r
-\r
- /* check rendering mode */\r
- if ( mode != FT_RENDER_MODE_MONO )\r
- {\r
- /* raster1 is only capable of producing monochrome bitmaps */\r
- if ( render->clazz == &ft_raster1_renderer_class )\r
- return Raster_Err_Cannot_Render_Glyph;\r
- }\r
- else\r
- {\r
- /* raster5 is only capable of producing 5-gray-levels bitmaps */\r
- if ( render->clazz == &ft_raster5_renderer_class )\r
- return Raster_Err_Cannot_Render_Glyph;\r
- }\r
-\r
- outline = &slot->outline;\r
-\r
- /* translate the outline to the new origin if needed */\r
- if ( origin )\r
- FT_Outline_Translate( outline, origin->x, origin->y );\r
-\r
- /* compute the control box, and grid fit it */\r
- FT_Outline_Get_CBox( outline, &cbox );\r
-\r
- cbox.xMin = FT_PIX_FLOOR( cbox.xMin );\r
- cbox.yMin = FT_PIX_FLOOR( cbox.yMin );\r
- cbox.xMax = FT_PIX_CEIL( cbox.xMax );\r
- cbox.yMax = FT_PIX_CEIL( cbox.yMax );\r
-\r
- width = (FT_UInt)( ( cbox.xMax - cbox.xMin ) >> 6 );\r
- height = (FT_UInt)( ( cbox.yMax - cbox.yMin ) >> 6 );\r
- bitmap = &slot->bitmap;\r
- memory = render->root.memory;\r
-\r
- /* release old bitmap buffer */\r
- if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )\r
- {\r
- FT_FREE( bitmap->buffer );\r
- slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;\r
- }\r
-\r
- /* allocate new one, depends on pixel format */\r
- if ( !( mode & FT_RENDER_MODE_MONO ) )\r
- {\r
- /* we pad to 32 bits, only for backwards compatibility with FT 1.x */\r
- pitch = FT_PAD_CEIL( width, 4 );\r
- bitmap->pixel_mode = FT_PIXEL_MODE_GRAY;\r
- bitmap->num_grays = 256;\r
- }\r
- else\r
- {\r
- pitch = ( ( width + 15 ) >> 4 ) << 1;\r
- bitmap->pixel_mode = FT_PIXEL_MODE_MONO;\r
- }\r
-\r
- bitmap->width = width;\r
- bitmap->rows = height;\r
- bitmap->pitch = pitch;\r
-\r
- if ( FT_ALLOC_MULT( bitmap->buffer, pitch, height ) )\r
- goto Exit;\r
-\r
- slot->internal->flags |= FT_GLYPH_OWN_BITMAP;\r
-\r
- /* translate outline to render it into the bitmap */\r
- FT_Outline_Translate( outline, -cbox.xMin, -cbox.yMin );\r
-\r
- /* set up parameters */\r
- params.target = bitmap;\r
- params.source = outline;\r
- params.flags = 0;\r
-\r
- if ( bitmap->pixel_mode == FT_PIXEL_MODE_GRAY )\r
- params.flags |= FT_RASTER_FLAG_AA;\r
-\r
- /* render outline into the bitmap */\r
- error = render->raster_render( render->raster, ¶ms );\r
-\r
- FT_Outline_Translate( outline, cbox.xMin, cbox.yMin );\r
-\r
- if ( error )\r
- goto Exit;\r
-\r
- slot->format = FT_GLYPH_FORMAT_BITMAP;\r
- slot->bitmap_left = (FT_Int)( cbox.xMin >> 6 );\r
- slot->bitmap_top = (FT_Int)( cbox.yMax >> 6 );\r
-\r
- Exit:\r
- return error;\r
- }\r
-\r
-\r
- FT_CALLBACK_TABLE_DEF\r
- const FT_Renderer_Class ft_raster1_renderer_class =\r
- {\r
- {\r
- FT_MODULE_RENDERER,\r
- sizeof( FT_RendererRec ),\r
-\r
- "raster1",\r
- 0x10000L,\r
- 0x20000L,\r
-\r
- 0, /* module specific interface */\r
-\r
- (FT_Module_Constructor)ft_raster1_init,\r
- (FT_Module_Destructor) 0,\r
- (FT_Module_Requester) 0\r
- },\r
-\r
- FT_GLYPH_FORMAT_OUTLINE,\r
-\r
- (FT_Renderer_RenderFunc) ft_raster1_render,\r
- (FT_Renderer_TransformFunc)ft_raster1_transform,\r
- (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox,\r
- (FT_Renderer_SetModeFunc) ft_raster1_set_mode,\r
-\r
- (FT_Raster_Funcs*) &ft_standard_raster\r
- };\r
-\r
-\r
- /* This renderer is _NOT_ part of the default modules; you will need */\r
- /* to register it by hand in your application. It should only be */\r
- /* used for backwards-compatibility with FT 1.x anyway. */\r
- /* */\r
- FT_CALLBACK_TABLE_DEF\r
- const FT_Renderer_Class ft_raster5_renderer_class =\r
- {\r
- {\r
- FT_MODULE_RENDERER,\r
- sizeof( FT_RendererRec ),\r
-\r
- "raster5",\r
- 0x10000L,\r
- 0x20000L,\r
-\r
- 0, /* module specific interface */\r
-\r
- (FT_Module_Constructor)ft_raster1_init,\r
- (FT_Module_Destructor) 0,\r
- (FT_Module_Requester) 0\r
- },\r
-\r
- FT_GLYPH_FORMAT_OUTLINE,\r
-\r
- (FT_Renderer_RenderFunc) ft_raster1_render,\r
- (FT_Renderer_TransformFunc)ft_raster1_transform,\r
- (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox,\r
- (FT_Renderer_SetModeFunc) ft_raster1_set_mode,\r
-\r
- (FT_Raster_Funcs*) &ft_standard_raster\r
- };\r
-\r
-\r
-/* END */\r
+/***************************************************************************/
+/* */
+/* ftrend1.c */
+/* */
+/* The FreeType glyph rasterizer interface (body). */
+/* */
+/* Copyright 1996-2001, 2002, 2003, 2005, 2006 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_OBJECTS_H
+#include FT_OUTLINE_H
+#include "ftrend1.h"
+#include "ftraster.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 Raster_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 = Raster_Err_Ok;
+
+
+ if ( slot->format != render->glyph_format )
+ {
+ error = Raster_Err_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_MEM_ZERO( cbox, sizeof ( *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;
+ 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 = Raster_Err_Invalid_Argument;
+ goto Exit;
+ }
+
+ /* check rendering mode */
+ if ( mode != FT_RENDER_MODE_MONO )
+ {
+ /* raster1 is only capable of producing monochrome bitmaps */
+ if ( render->clazz == &ft_raster1_renderer_class )
+ return Raster_Err_Cannot_Render_Glyph;
+ }
+ else
+ {
+ /* raster5 is only capable of producing 5-gray-levels bitmaps */
+ if ( render->clazz == &ft_raster5_renderer_class )
+ return Raster_Err_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, &cbox );
+
+ 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 );
+
+ width = (FT_UInt)( ( cbox.xMax - cbox.xMin ) >> 6 );
+ height = (FT_UInt)( ( cbox.yMax - cbox.yMin ) >> 6 );
+ 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;
+ }
+
+ /* allocate new one, depends on pixel format */
+ if ( !( mode & FT_RENDER_MODE_MONO ) )
+ {
+ /* we pad to 32 bits, only for backwards compatibility with FT 1.x */
+ pitch = FT_PAD_CEIL( width, 4 );
+ bitmap->pixel_mode = FT_PIXEL_MODE_GRAY;
+ bitmap->num_grays = 256;
+ }
+ else
+ {
+ pitch = ( ( width + 15 ) >> 4 ) << 1;
+ bitmap->pixel_mode = FT_PIXEL_MODE_MONO;
+ }
+
+ bitmap->width = width;
+ bitmap->rows = height;
+ bitmap->pitch = 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;
+
+ if ( bitmap->pixel_mode == FT_PIXEL_MODE_GRAY )
+ params.flags |= FT_RASTER_FLAG_AA;
+
+ /* 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_CALLBACK_TABLE_DEF
+ const FT_Renderer_Class ft_raster1_renderer_class =
+ {
+ {
+ FT_MODULE_RENDERER,
+ sizeof( FT_RendererRec ),
+
+ "raster1",
+ 0x10000L,
+ 0x20000L,
+
+ 0, /* module specific interface */
+
+ (FT_Module_Constructor)ft_raster1_init,
+ (FT_Module_Destructor) 0,
+ (FT_Module_Requester) 0
+ },
+
+ FT_GLYPH_FORMAT_OUTLINE,
+
+ (FT_Renderer_RenderFunc) ft_raster1_render,
+ (FT_Renderer_TransformFunc)ft_raster1_transform,
+ (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox,
+ (FT_Renderer_SetModeFunc) ft_raster1_set_mode,
+
+ (FT_Raster_Funcs*) &ft_standard_raster
+ };
+
+
+ /* This renderer is _NOT_ part of the default modules; you will need */
+ /* to register it by hand in your application. It should only be */
+ /* used for backwards-compatibility with FT 1.x anyway. */
+ /* */
+ FT_CALLBACK_TABLE_DEF
+ const FT_Renderer_Class ft_raster5_renderer_class =
+ {
+ {
+ FT_MODULE_RENDERER,
+ sizeof( FT_RendererRec ),
+
+ "raster5",
+ 0x10000L,
+ 0x20000L,
+
+ 0, /* module specific interface */
+
+ (FT_Module_Constructor)ft_raster1_init,
+ (FT_Module_Destructor) 0,
+ (FT_Module_Requester) 0
+ },
+
+ FT_GLYPH_FORMAT_OUTLINE,
+
+ (FT_Renderer_RenderFunc) ft_raster1_render,
+ (FT_Renderer_TransformFunc)ft_raster1_transform,
+ (FT_Renderer_GetCBoxFunc) ft_raster1_get_cbox,
+ (FT_Renderer_SetModeFunc) ft_raster1_set_mode,
+
+ (FT_Raster_Funcs*) &ft_standard_raster
+ };
+
+
+/* END */
projects / reactos.git / blobdiff