Update freetype to 2.5.4.

Put freetype into third_party directory, cleaning up header files.

Previously freetype header files are in core/src/fxge/freetype and core/include/thirdparties. There were also multiple fx_freetype.h.

This patch removes the additional Foxit wrapper to make further update easier.

Notice, for original freetype source code, the following files are modified and need to be updated accordingly in future update:

third_party/freetype/include/config/ftmodule.h
third_party/freetype/include/config/ftoption.h

BUG=407341
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/815103002

1 files changed, 511 insertions, 0 deletions

diff --git a/third_party/freetype/src/smooth/ftsmooth.c b/third_party/freetype/src/smooth/ftsmooth.c
new file mode 100644
index 0000000000..4e2dee562b
--- /dev/null
+++ b/third_party/freetype/src/smooth/ftsmooth.c
@@ -0,0 +1,511 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ftsmooth.c                                                             */
+/*                                                                         */
+/*    Anti-aliasing renderer interface (body).                             */
+/*                                                                         */
+/*  Copyright 2000-2006, 2009-2013 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 "ftsmooth.h"
+#include "ftgrays.h"
+#include "ftspic.h"
+
+#include "ftsmerrs.h"
+
+
+  /* initialize renderer -- init its raster */
+  static FT_Error
+  ft_smooth_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 0;
+  }
+
+
+  /* sets render-specific mode */
+  static FT_Error
+  ft_smooth_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_smooth_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_smooth_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_smooth_render_generic( FT_Renderer       render,
+                            FT_GlyphSlot      slot,
+                            FT_Render_Mode    mode,
+                            const FT_Vector*  origin,
+                            FT_Render_Mode    required_mode )
+  {
+    FT_Error     error;
+    FT_Outline*  outline = &slot->outline;
+    FT_Bitmap*   bitmap  = &slot->bitmap;
+    FT_Memory    memory  = render->root.memory;
+    FT_BBox      cbox;
+    FT_Pos       x_shift = 0;
+    FT_Pos       y_shift = 0;
+    FT_Pos       x_left, y_top;
+    FT_Pos       width, height, pitch;
+#ifndef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
+    FT_Pos       height_org, width_org;
+#endif
+    FT_Int       hmul    = mode == FT_RENDER_MODE_LCD;
+    FT_Int       vmul    = mode == FT_RENDER_MODE_LCD_V;
+
+    FT_Raster_Params  params;
+
+    FT_Bool  have_outline_shifted = FALSE;
+    FT_Bool  have_buffer          = FALSE;
+
+
+    /* check glyph image format */
+    if ( slot->format != render->glyph_format )
+    {
+      error = FT_THROW( Invalid_Argument );
+      goto Exit;
+    }
+
+    /* check mode */
+    if ( mode != required_mode )
+    {
+      error = FT_THROW( Cannot_Render_Glyph );
+      goto Exit;
+    }
+
+    if ( origin )
+    {
+      x_shift = origin->x;
+      y_shift = origin->y;
+    }
+
+    /* compute the control box, and grid fit it */
+    /* taking into account the origin shift     */
+    FT_Outline_Get_CBox( outline, &cbox );
+
+    cbox.xMin = FT_PIX_FLOOR( cbox.xMin + x_shift );
+    cbox.yMin = FT_PIX_FLOOR( cbox.yMin + y_shift );
+    cbox.xMax = FT_PIX_CEIL( cbox.xMax + x_shift );
+    cbox.yMax = FT_PIX_CEIL( cbox.yMax + y_shift );
+
+    x_shift -= cbox.xMin;
+    y_shift -= cbox.yMin;
+
+    x_left  = cbox.xMin >> 6;
+    y_top   = cbox.yMax >> 6;
+
+    width  = (FT_ULong)( cbox.xMax - cbox.xMin ) >> 6;
+    height = (FT_ULong)( cbox.yMax - cbox.yMin ) >> 6;
+
+#ifndef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
+    width_org  = width;
+    height_org = height;
+#endif
+
+    pitch = width;
+    if ( hmul )
+    {
+      width *= 3;
+      pitch  = FT_PAD_CEIL( width, 4 );
+    }
+
+    if ( vmul )
+      height *= 3;
+
+#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
+
+    if ( slot->library->lcd_filter_func )
+    {
+      FT_Int  extra = slot->library->lcd_extra;
+
+
+      if ( hmul )
+      {
+        x_shift += 64 * ( extra >> 1 );
+        x_left  -= extra >> 1;
+        width   += 3 * extra;
+        pitch    = FT_PAD_CEIL( width, 4 );
+      }
+
+      if ( vmul )
+      {
+        y_shift += 64 * ( extra >> 1 );
+        y_top   += extra >> 1;
+        height  += 3 * extra;
+      }
+    }
+
+#endif
+
+    /*
+     * XXX: on 16bit system, we return an error for huge bitmap
+     * to prevent an overflow.
+     */
+    if ( x_left > FT_INT_MAX || y_top > FT_INT_MAX ||
+         x_left < FT_INT_MIN || y_top < FT_INT_MIN )
+    {
+      error = FT_THROW( Invalid_Pixel_Size );
+      goto Exit;
+    }
+
+    /* Required check is (pitch * height < FT_ULONG_MAX),        */
+    /* but we care realistic cases only.  Always pitch <= width. */
+    if ( width > 0x7FFF || height > 0x7FFF )
+    {
+      FT_ERROR(( "ft_smooth_render_generic: glyph too large: %u x %u\n",
+                 width, height ));
+      error = FT_THROW( Raster_Overflow );
+      goto Exit;
+    }
+
+    /* 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 */
+    if ( FT_ALLOC( bitmap->buffer, (FT_ULong)pitch * height ) )
+      goto Exit;
+    else
+      have_buffer = TRUE;
+
+    slot->internal->flags |= FT_GLYPH_OWN_BITMAP;
+
+    slot->format      = FT_GLYPH_FORMAT_BITMAP;
+    slot->bitmap_left = (FT_Int)x_left;
+    slot->bitmap_top  = (FT_Int)y_top;
+
+    bitmap->pixel_mode = FT_PIXEL_MODE_GRAY;
+    bitmap->num_grays  = 256;
+    bitmap->width      = width;
+    bitmap->rows       = height;
+    bitmap->pitch      = pitch;
+
+    /* translate outline to render it into the bitmap */
+    if ( x_shift || y_shift )
+    {
+      FT_Outline_Translate( outline, x_shift, y_shift );
+      have_outline_shifted = TRUE;
+    }
+
+    /* set up parameters */
+    params.target = bitmap;
+    params.source = outline;
+    params.flags  = FT_RASTER_FLAG_AA;
+
+#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
+
+    /* implode outline if needed */
+    {
+      FT_Vector*  points     = outline->points;
+      FT_Vector*  points_end = points + outline->n_points;
+      FT_Vector*  vec;
+
+
+      if ( hmul )
+        for ( vec = points; vec < points_end; vec++ )
+          vec->x *= 3;
+
+      if ( vmul )
+        for ( vec = points; vec < points_end; vec++ )
+          vec->y *= 3;
+    }
+
+    /* render outline into the bitmap */
+    error = render->raster_render( render->raster, &params );
+
+    /* deflate outline if needed */
+    {
+      FT_Vector*  points     = outline->points;
+      FT_Vector*  points_end = points + outline->n_points;
+      FT_Vector*  vec;
+
+
+      if ( hmul )
+        for ( vec = points; vec < points_end; vec++ )
+          vec->x /= 3;
+
+      if ( vmul )
+        for ( vec = points; vec < points_end; vec++ )
+          vec->y /= 3;
+    }
+
+    if ( error )
+      goto Exit;
+
+    if ( slot->library->lcd_filter_func )
+      slot->library->lcd_filter_func( bitmap, mode, slot->library );
+
+#else /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
+
+    /* render outline into bitmap */
+    error = render->raster_render( render->raster, &params );
+    if ( error )
+      goto Exit;
+
+    /* expand it horizontally */
+    if ( hmul )
+    {
+      FT_Byte*  line = bitmap->buffer;
+      FT_UInt   hh;
+
+
+      for ( hh = height_org; hh > 0; hh--, line += pitch )
+      {
+        FT_UInt   xx;
+        FT_Byte*  end = line + width;
+
+
+        for ( xx = width_org; xx > 0; xx-- )
+        {
+          FT_UInt  pixel = line[xx-1];
+
+
+          end[-3] = (FT_Byte)pixel;
+          end[-2] = (FT_Byte)pixel;
+          end[-1] = (FT_Byte)pixel;
+          end    -= 3;
+        }
+      }
+    }
+
+    /* expand it vertically */
+    if ( vmul )
+    {
+      FT_Byte*  read  = bitmap->buffer + ( height - height_org ) * pitch;
+      FT_Byte*  write = bitmap->buffer;
+      FT_UInt   hh;
+
+
+      for ( hh = height_org; hh > 0; hh-- )
+      {
+        ft_memcpy( write, read, pitch );
+        write += pitch;
+
+        ft_memcpy( write, read, pitch );
+        write += pitch;
+
+        ft_memcpy( write, read, pitch );
+        write += pitch;
+        read  += pitch;
+      }
+    }
+
+#endif /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
+
+    /* everything is fine; don't deallocate buffer */
+    have_buffer = FALSE;
+
+    error = FT_Err_Ok;
+
+  Exit:
+    if ( have_outline_shifted )
+      FT_Outline_Translate( outline, -x_shift, -y_shift );
+    if ( have_buffer )
+    {
+      FT_FREE( bitmap->buffer );
+      slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
+    }
+
+    return error;
+  }
+
+
+  /* convert a slot's glyph image into a bitmap */
+  static FT_Error
+  ft_smooth_render( FT_Renderer       render,
+                    FT_GlyphSlot      slot,
+                    FT_Render_Mode    mode,
+                    const FT_Vector*  origin )
+  {
+    if ( mode == FT_RENDER_MODE_LIGHT )
+      mode = FT_RENDER_MODE_NORMAL;
+
+    return ft_smooth_render_generic( render, slot, mode, origin,
+                                     FT_RENDER_MODE_NORMAL );
+  }
+
+
+  /* convert a slot's glyph image into a horizontal LCD bitmap */
+  static FT_Error
+  ft_smooth_render_lcd( FT_Renderer       render,
+                        FT_GlyphSlot      slot,
+                        FT_Render_Mode    mode,
+                        const FT_Vector*  origin )
+  {
+    FT_Error  error;
+
+    error = ft_smooth_render_generic( render, slot, mode, origin,
+                                      FT_RENDER_MODE_LCD );
+    if ( !error )
+      slot->bitmap.pixel_mode = FT_PIXEL_MODE_LCD;
+
+    return error;
+  }
+
+
+  /* convert a slot's glyph image into a vertical LCD bitmap */
+  static FT_Error
+  ft_smooth_render_lcd_v( FT_Renderer       render,
+                          FT_GlyphSlot      slot,
+                          FT_Render_Mode    mode,
+                          const FT_Vector*  origin )
+  {
+    FT_Error  error;
+
+    error = ft_smooth_render_generic( render, slot, mode, origin,
+                                      FT_RENDER_MODE_LCD_V );
+    if ( !error )
+      slot->bitmap.pixel_mode = FT_PIXEL_MODE_LCD_V;
+
+    return error;
+  }
+
+
+  FT_DEFINE_RENDERER( ft_smooth_renderer_class,
+
+      FT_MODULE_RENDERER,
+      sizeof ( FT_RendererRec ),
+
+      "smooth",
+      0x10000L,
+      0x20000L,
+
+      0,    /* module specific interface */
+
+      (FT_Module_Constructor)ft_smooth_init,
+      (FT_Module_Destructor) 0,
+      (FT_Module_Requester)  0
+    ,
+
+    FT_GLYPH_FORMAT_OUTLINE,
+
+    (FT_Renderer_RenderFunc)   ft_smooth_render,
+    (FT_Renderer_TransformFunc)ft_smooth_transform,
+    (FT_Renderer_GetCBoxFunc)  ft_smooth_get_cbox,
+    (FT_Renderer_SetModeFunc)  ft_smooth_set_mode,
+
+    (FT_Raster_Funcs*)    &FT_GRAYS_RASTER_GET
+  )
+
+
+  FT_DEFINE_RENDERER( ft_smooth_lcd_renderer_class,
+
+      FT_MODULE_RENDERER,
+      sizeof ( FT_RendererRec ),
+
+      "smooth-lcd",
+      0x10000L,
+      0x20000L,
+
+      0,    /* module specific interface */
+
+      (FT_Module_Constructor)ft_smooth_init,
+      (FT_Module_Destructor) 0,
+      (FT_Module_Requester)  0
+    ,
+
+    FT_GLYPH_FORMAT_OUTLINE,
+
+    (FT_Renderer_RenderFunc)   ft_smooth_render_lcd,
+    (FT_Renderer_TransformFunc)ft_smooth_transform,
+    (FT_Renderer_GetCBoxFunc)  ft_smooth_get_cbox,
+    (FT_Renderer_SetModeFunc)  ft_smooth_set_mode,
+
+    (FT_Raster_Funcs*)    &FT_GRAYS_RASTER_GET
+  )
+
+  FT_DEFINE_RENDERER( ft_smooth_lcdv_renderer_class,
+
+      FT_MODULE_RENDERER,
+      sizeof ( FT_RendererRec ),
+
+      "smooth-lcdv",
+      0x10000L,
+      0x20000L,
+
+      0,    /* module specific interface */
+
+      (FT_Module_Constructor)ft_smooth_init,
+      (FT_Module_Destructor) 0,
+      (FT_Module_Requester)  0
+    ,
+
+    FT_GLYPH_FORMAT_OUTLINE,
+
+    (FT_Renderer_RenderFunc)   ft_smooth_render_lcd_v,
+    (FT_Renderer_TransformFunc)ft_smooth_transform,
+    (FT_Renderer_GetCBoxFunc)  ft_smooth_get_cbox,
+    (FT_Renderer_SetModeFunc)  ft_smooth_set_mode,
+
+    (FT_Raster_Funcs*)    &FT_GRAYS_RASTER_GET
+  )
+
+
+/* END */