Index: core/src/fxge/fx_freetype/fxft2.5.01/src/base/fxft_ftbitmap.c |
diff --git a/core/src/fxge/fx_freetype/fxft2.5.01/src/base/fxft_ftbitmap.c b/core/src/fxge/fx_freetype/fxft2.5.01/src/base/fxft_ftbitmap.c |
deleted file mode 100644 |
index 7f1ef189dcd7444c0562d8f4c12e278c092e1b74..0000000000000000000000000000000000000000 |
--- a/core/src/fxge/fx_freetype/fxft2.5.01/src/base/fxft_ftbitmap.c |
+++ /dev/null |
@@ -1,760 +0,0 @@ |
-#if !defined(_FXFT_VERSION_) || _FXFT_VERSION_ == 2501 |
-/***************************************************************************/ |
-/* */ |
-/* ftbitmap.c */ |
-/* */ |
-/* FreeType utility functions for bitmaps (body). */ |
-/* */ |
-/* Copyright 2004-2009, 2011, 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. */ |
-/* */ |
-/***************************************************************************/ |
- |
-#define FT2_BUILD_LIBRARY |
-#include "../../include/ft2build.h" |
-#include "../../include/freetype/internal/ftdebug.h" |
-#include "../../include/freetype/ftbitmap.h" |
-#include "../../include/freetype/ftimage.h" |
-#include "../../include/freetype/internal/ftobjs.h" |
- |
- |
- static |
- const FT_Bitmap null_bitmap = { 0, 0, 0, 0, 0, 0, 0, 0 }; |
- |
- |
- /* documentation is in ftbitmap.h */ |
- |
- FT_EXPORT_DEF( void ) |
- FT_Bitmap_New( FT_Bitmap *abitmap ) |
- { |
- *abitmap = null_bitmap; |
- } |
- |
- |
- /* documentation is in ftbitmap.h */ |
- |
- FT_EXPORT_DEF( FT_Error ) |
- FT_Bitmap_Copy( FT_Library library, |
- const FT_Bitmap *source, |
- FT_Bitmap *target) |
- { |
- FT_Memory memory = library->memory; |
- FT_Error error = FT_Err_Ok; |
- FT_Int pitch = source->pitch; |
- FT_ULong size; |
- |
- |
- if ( source == target ) |
- return FT_Err_Ok; |
- |
- if ( source->buffer == NULL ) |
- { |
- *target = *source; |
- |
- return FT_Err_Ok; |
- } |
- |
- if ( pitch < 0 ) |
- pitch = -pitch; |
- size = (FT_ULong)( pitch * source->rows ); |
- |
- if ( target->buffer ) |
- { |
- FT_Int target_pitch = target->pitch; |
- FT_ULong target_size; |
- |
- |
- if ( target_pitch < 0 ) |
- target_pitch = -target_pitch; |
- target_size = (FT_ULong)( target_pitch * target->rows ); |
- |
- if ( target_size != size ) |
- (void)FT_QREALLOC( target->buffer, target_size, size ); |
- } |
- else |
- (void)FT_QALLOC( target->buffer, size ); |
- |
- if ( !error ) |
- { |
- unsigned char *p; |
- |
- |
- p = target->buffer; |
- *target = *source; |
- target->buffer = p; |
- |
- FT_MEM_COPY( target->buffer, source->buffer, size ); |
- } |
- |
- return error; |
- } |
- |
- |
- static FT_Error |
- ft_bitmap_assure_buffer( FT_Memory memory, |
- FT_Bitmap* bitmap, |
- FT_UInt xpixels, |
- FT_UInt ypixels ) |
- { |
- FT_Error error; |
- int pitch; |
- int new_pitch; |
- FT_UInt bpp; |
- FT_Int i, width, height; |
- unsigned char* buffer = NULL; |
- |
- |
- width = bitmap->width; |
- height = bitmap->rows; |
- pitch = bitmap->pitch; |
- if ( pitch < 0 ) |
- pitch = -pitch; |
- |
- switch ( bitmap->pixel_mode ) |
- { |
- case FT_PIXEL_MODE_MONO: |
- bpp = 1; |
- new_pitch = ( width + xpixels + 7 ) >> 3; |
- break; |
- case FT_PIXEL_MODE_GRAY2: |
- bpp = 2; |
- new_pitch = ( width + xpixels + 3 ) >> 2; |
- break; |
- case FT_PIXEL_MODE_GRAY4: |
- bpp = 4; |
- new_pitch = ( width + xpixels + 1 ) >> 1; |
- break; |
- case FT_PIXEL_MODE_GRAY: |
- case FT_PIXEL_MODE_LCD: |
- case FT_PIXEL_MODE_LCD_V: |
- bpp = 8; |
- new_pitch = ( width + xpixels ); |
- break; |
- default: |
- return FT_THROW( Invalid_Glyph_Format ); |
- } |
- |
- /* if no need to allocate memory */ |
- if ( ypixels == 0 && new_pitch <= pitch ) |
- { |
- /* zero the padding */ |
- FT_Int bit_width = pitch * 8; |
- FT_Int bit_last = ( width + xpixels ) * bpp; |
- |
- |
- if ( bit_last < bit_width ) |
- { |
- FT_Byte* line = bitmap->buffer + ( bit_last >> 3 ); |
- FT_Byte* end = bitmap->buffer + pitch; |
- FT_Int shift = bit_last & 7; |
- FT_UInt mask = 0xFF00U >> shift; |
- FT_Int count = height; |
- |
- |
- for ( ; count > 0; count--, line += pitch, end += pitch ) |
- { |
- FT_Byte* write = line; |
- |
- |
- if ( shift > 0 ) |
- { |
- write[0] = (FT_Byte)( write[0] & mask ); |
- write++; |
- } |
- if ( write < end ) |
- FT_MEM_ZERO( write, end-write ); |
- } |
- } |
- |
- return FT_Err_Ok; |
- } |
- |
- if ( FT_QALLOC_MULT( buffer, new_pitch, bitmap->rows + ypixels ) ) |
- return error; |
- |
- if ( bitmap->pitch > 0 ) |
- { |
- FT_Int len = ( width * bpp + 7 ) >> 3; |
- |
- |
- for ( i = 0; i < bitmap->rows; i++ ) |
- FT_MEM_COPY( buffer + new_pitch * ( ypixels + i ), |
- bitmap->buffer + pitch * i, len ); |
- } |
- else |
- { |
- FT_Int len = ( width * bpp + 7 ) >> 3; |
- |
- |
- for ( i = 0; i < bitmap->rows; i++ ) |
- FT_MEM_COPY( buffer + new_pitch * i, |
- bitmap->buffer + pitch * i, len ); |
- } |
- |
- FT_FREE( bitmap->buffer ); |
- bitmap->buffer = buffer; |
- |
- if ( bitmap->pitch < 0 ) |
- new_pitch = -new_pitch; |
- |
- /* set pitch only, width and height are left untouched */ |
- bitmap->pitch = new_pitch; |
- |
- return FT_Err_Ok; |
- } |
- |
- |
- /* documentation is in ftbitmap.h */ |
- |
- FT_EXPORT_DEF( FT_Error ) |
- FT_Bitmap_Embolden( FT_Library library, |
- FT_Bitmap* bitmap, |
- FT_Pos xStrength, |
- FT_Pos yStrength ) |
- { |
- FT_Error error; |
- unsigned char* p; |
- FT_Int i, x, y, pitch; |
- FT_Int xstr, ystr; |
- |
- |
- if ( !library ) |
- return FT_THROW( Invalid_Library_Handle ); |
- |
- if ( !bitmap || !bitmap->buffer ) |
- return FT_THROW( Invalid_Argument ); |
- |
- if ( ( ( FT_PIX_ROUND( xStrength ) >> 6 ) > FT_INT_MAX ) || |
- ( ( FT_PIX_ROUND( yStrength ) >> 6 ) > FT_INT_MAX ) ) |
- return FT_THROW( Invalid_Argument ); |
- |
- xstr = (FT_Int)FT_PIX_ROUND( xStrength ) >> 6; |
- ystr = (FT_Int)FT_PIX_ROUND( yStrength ) >> 6; |
- |
- if ( xstr == 0 && ystr == 0 ) |
- return FT_Err_Ok; |
- else if ( xstr < 0 || ystr < 0 ) |
- return FT_THROW( Invalid_Argument ); |
- |
- switch ( bitmap->pixel_mode ) |
- { |
- case FT_PIXEL_MODE_GRAY2: |
- case FT_PIXEL_MODE_GRAY4: |
- { |
- FT_Bitmap tmp; |
- FT_Int align; |
- |
- |
- if ( bitmap->pixel_mode == FT_PIXEL_MODE_GRAY2 ) |
- align = ( bitmap->width + xstr + 3 ) / 4; |
- else |
- align = ( bitmap->width + xstr + 1 ) / 2; |
- |
- FT_Bitmap_New( &tmp ); |
- |
- error = FT_Bitmap_Convert( library, bitmap, &tmp, align ); |
- if ( error ) |
- return error; |
- |
- FT_Bitmap_Done( library, bitmap ); |
- *bitmap = tmp; |
- } |
- break; |
- |
- case FT_PIXEL_MODE_MONO: |
- if ( xstr > 8 ) |
- xstr = 8; |
- break; |
- |
- case FT_PIXEL_MODE_LCD: |
- xstr *= 3; |
- break; |
- |
- case FT_PIXEL_MODE_LCD_V: |
- ystr *= 3; |
- break; |
- |
- case FT_PIXEL_MODE_BGRA: |
- /* We don't embolden color glyphs. */ |
- return FT_Err_Ok; |
- } |
- |
- error = ft_bitmap_assure_buffer( library->memory, bitmap, xstr, ystr ); |
- if ( error ) |
- return error; |
- |
- pitch = bitmap->pitch; |
- if ( pitch > 0 ) |
- p = bitmap->buffer + pitch * ystr; |
- else |
- { |
- pitch = -pitch; |
- p = bitmap->buffer + pitch * ( bitmap->rows - 1 ); |
- } |
- |
- /* for each row */ |
- for ( y = 0; y < bitmap->rows ; y++ ) |
- { |
- /* |
- * Horizontally: |
- * |
- * From the last pixel on, make each pixel or'ed with the |
- * `xstr' pixels before it. |
- */ |
- for ( x = pitch - 1; x >= 0; x-- ) |
- { |
- unsigned char tmp; |
- |
- |
- tmp = p[x]; |
- for ( i = 1; i <= xstr; i++ ) |
- { |
- if ( bitmap->pixel_mode == FT_PIXEL_MODE_MONO ) |
- { |
- p[x] |= tmp >> i; |
- |
- /* the maximum value of 8 for `xstr' comes from here */ |
- if ( x > 0 ) |
- p[x] |= p[x - 1] << ( 8 - i ); |
- |
-#if 0 |
- if ( p[x] == 0xff ) |
- break; |
-#endif |
- } |
- else |
- { |
- if ( x - i >= 0 ) |
- { |
- if ( p[x] + p[x - i] > bitmap->num_grays - 1 ) |
- { |
- p[x] = (unsigned char)(bitmap->num_grays - 1); |
- break; |
- } |
- else |
- { |
- p[x] = (unsigned char)(p[x] + p[x-i]); |
- if ( p[x] == bitmap->num_grays - 1 ) |
- break; |
- } |
- } |
- else |
- break; |
- } |
- } |
- } |
- |
- /* |
- * Vertically: |
- * |
- * Make the above `ystr' rows or'ed with it. |
- */ |
- for ( x = 1; x <= ystr; x++ ) |
- { |
- unsigned char* q; |
- |
- |
- q = p - bitmap->pitch * x; |
- for ( i = 0; i < pitch; i++ ) |
- q[i] |= p[i]; |
- } |
- |
- p += bitmap->pitch; |
- } |
- |
- bitmap->width += xstr; |
- bitmap->rows += ystr; |
- |
- return FT_Err_Ok; |
- } |
- |
- |
- FT_Byte |
- ft_gray_for_premultiplied_srgb_bgra( const FT_Byte* bgra ) |
- { |
- FT_Long a = bgra[3]; |
- FT_Long b = bgra[0]; |
- FT_Long g = bgra[1]; |
- FT_Long r = bgra[2]; |
- FT_Long l; |
- |
- |
- /* |
- * Luminosity for sRGB is defined using ~0.2126,0.7152,0.0722 |
- * coefficients for RGB channels *on the linear colors*. |
- * A gamma of 2.2 is fair to assume. And then, we need to |
- * undo the premultiplication too. |
- * |
- * http://accessibility.kde.org/hsl-adjusted.php |
- * |
- * We do the computation with integers only. |
- */ |
- |
- /* Undo premultification, get the number in a 16.16 form. */ |
- b = FT_MulDiv( b, 65536, a ); |
- g = FT_MulDiv( g, 65536, a ); |
- r = FT_MulDiv( r, 65536, a ); |
- a = a * 256; |
- |
- /* Apply gamma of 2.0 instead of 2.2. */ |
- b = FT_MulFix( b, b ); |
- g = FT_MulFix( g, g ); |
- r = FT_MulFix( r, r ); |
- |
- /* Apply coefficients. */ |
- b = FT_MulFix( b, 4731 /* 0.0722 * 65536 */ ); |
- g = FT_MulFix( g, 46871 /* 0.7152 * 65536 */ ); |
- r = FT_MulFix( r, 13933 /* 0.2126 * 65536 */ ); |
- |
- l = r + g + b; |
- |
- /* |
- * Final transparency can be determined this way: |
- * |
- * - If alpha is zero, we want 0. |
- * - If alpha is zero and luminosity is zero, we want 255. |
- * - If alpha is zero and luminosity is one, we want 0. |
- * |
- * So the formula is a * (1 - l). |
- */ |
- |
- return (FT_Byte)( FT_MulFix( 65535 - l, a ) >> 8 ); |
- } |
- |
- |
- /* documentation is in ftbitmap.h */ |
- |
- FT_EXPORT_DEF( FT_Error ) |
- FT_Bitmap_Convert( FT_Library library, |
- const FT_Bitmap *source, |
- FT_Bitmap *target, |
- FT_Int alignment ) |
- { |
- FT_Error error = FT_Err_Ok; |
- FT_Memory memory; |
- |
- |
- if ( !library ) |
- return FT_THROW( Invalid_Library_Handle ); |
- |
- memory = library->memory; |
- |
- switch ( source->pixel_mode ) |
- { |
- case FT_PIXEL_MODE_MONO: |
- case FT_PIXEL_MODE_GRAY: |
- case FT_PIXEL_MODE_GRAY2: |
- case FT_PIXEL_MODE_GRAY4: |
- case FT_PIXEL_MODE_LCD: |
- case FT_PIXEL_MODE_LCD_V: |
- case FT_PIXEL_MODE_BGRA: |
- { |
- FT_Int pad; |
- FT_Long old_size; |
- |
- |
- old_size = target->rows * target->pitch; |
- if ( old_size < 0 ) |
- old_size = -old_size; |
- |
- target->pixel_mode = FT_PIXEL_MODE_GRAY; |
- target->rows = source->rows; |
- target->width = source->width; |
- |
- pad = 0; |
- if ( alignment > 0 ) |
- { |
- pad = source->width % alignment; |
- if ( pad != 0 ) |
- pad = alignment - pad; |
- } |
- |
- target->pitch = source->width + pad; |
- |
- if ( target->pitch > 0 && |
- (FT_ULong)target->rows > FT_ULONG_MAX / target->pitch ) |
- return FT_THROW( Invalid_Argument ); |
- |
- if ( target->rows * target->pitch > old_size && |
- FT_QREALLOC( target->buffer, |
- old_size, target->rows * target->pitch ) ) |
- return error; |
- } |
- break; |
- |
- default: |
- error = FT_THROW( Invalid_Argument ); |
- } |
- |
- switch ( source->pixel_mode ) |
- { |
- case FT_PIXEL_MODE_MONO: |
- { |
- FT_Byte* s = source->buffer; |
- FT_Byte* t = target->buffer; |
- FT_Int i; |
- |
- |
- target->num_grays = 2; |
- |
- for ( i = source->rows; i > 0; i-- ) |
- { |
- FT_Byte* ss = s; |
- FT_Byte* tt = t; |
- FT_Int j; |
- |
- |
- /* get the full bytes */ |
- for ( j = source->width >> 3; j > 0; j-- ) |
- { |
- FT_Int val = ss[0]; /* avoid a byte->int cast on each line */ |
- |
- |
- tt[0] = (FT_Byte)( ( val & 0x80 ) >> 7 ); |
- tt[1] = (FT_Byte)( ( val & 0x40 ) >> 6 ); |
- tt[2] = (FT_Byte)( ( val & 0x20 ) >> 5 ); |
- tt[3] = (FT_Byte)( ( val & 0x10 ) >> 4 ); |
- tt[4] = (FT_Byte)( ( val & 0x08 ) >> 3 ); |
- tt[5] = (FT_Byte)( ( val & 0x04 ) >> 2 ); |
- tt[6] = (FT_Byte)( ( val & 0x02 ) >> 1 ); |
- tt[7] = (FT_Byte)( val & 0x01 ); |
- |
- tt += 8; |
- ss += 1; |
- } |
- |
- /* get remaining pixels (if any) */ |
- j = source->width & 7; |
- if ( j > 0 ) |
- { |
- FT_Int val = *ss; |
- |
- |
- for ( ; j > 0; j-- ) |
- { |
- tt[0] = (FT_Byte)( ( val & 0x80 ) >> 7); |
- val <<= 1; |
- tt += 1; |
- } |
- } |
- |
- s += source->pitch; |
- t += target->pitch; |
- } |
- } |
- break; |
- |
- |
- case FT_PIXEL_MODE_GRAY: |
- case FT_PIXEL_MODE_LCD: |
- case FT_PIXEL_MODE_LCD_V: |
- { |
- FT_Int width = source->width; |
- FT_Byte* s = source->buffer; |
- FT_Byte* t = target->buffer; |
- FT_Int s_pitch = source->pitch; |
- FT_Int t_pitch = target->pitch; |
- FT_Int i; |
- |
- |
- target->num_grays = 256; |
- |
- for ( i = source->rows; i > 0; i-- ) |
- { |
- FT_ARRAY_COPY( t, s, width ); |
- |
- s += s_pitch; |
- t += t_pitch; |
- } |
- } |
- break; |
- |
- |
- case FT_PIXEL_MODE_GRAY2: |
- { |
- FT_Byte* s = source->buffer; |
- FT_Byte* t = target->buffer; |
- FT_Int i; |
- |
- |
- target->num_grays = 4; |
- |
- for ( i = source->rows; i > 0; i-- ) |
- { |
- FT_Byte* ss = s; |
- FT_Byte* tt = t; |
- FT_Int j; |
- |
- |
- /* get the full bytes */ |
- for ( j = source->width >> 2; j > 0; j-- ) |
- { |
- FT_Int val = ss[0]; |
- |
- |
- tt[0] = (FT_Byte)( ( val & 0xC0 ) >> 6 ); |
- tt[1] = (FT_Byte)( ( val & 0x30 ) >> 4 ); |
- tt[2] = (FT_Byte)( ( val & 0x0C ) >> 2 ); |
- tt[3] = (FT_Byte)( ( val & 0x03 ) ); |
- |
- ss += 1; |
- tt += 4; |
- } |
- |
- j = source->width & 3; |
- if ( j > 0 ) |
- { |
- FT_Int val = ss[0]; |
- |
- |
- for ( ; j > 0; j-- ) |
- { |
- tt[0] = (FT_Byte)( ( val & 0xC0 ) >> 6 ); |
- val <<= 2; |
- tt += 1; |
- } |
- } |
- |
- s += source->pitch; |
- t += target->pitch; |
- } |
- } |
- break; |
- |
- |
- case FT_PIXEL_MODE_GRAY4: |
- { |
- FT_Byte* s = source->buffer; |
- FT_Byte* t = target->buffer; |
- FT_Int i; |
- |
- |
- target->num_grays = 16; |
- |
- for ( i = source->rows; i > 0; i-- ) |
- { |
- FT_Byte* ss = s; |
- FT_Byte* tt = t; |
- FT_Int j; |
- |
- |
- /* get the full bytes */ |
- for ( j = source->width >> 1; j > 0; j-- ) |
- { |
- FT_Int val = ss[0]; |
- |
- |
- tt[0] = (FT_Byte)( ( val & 0xF0 ) >> 4 ); |
- tt[1] = (FT_Byte)( ( val & 0x0F ) ); |
- |
- ss += 1; |
- tt += 2; |
- } |
- |
- if ( source->width & 1 ) |
- tt[0] = (FT_Byte)( ( ss[0] & 0xF0 ) >> 4 ); |
- |
- s += source->pitch; |
- t += target->pitch; |
- } |
- } |
- break; |
- |
- case FT_PIXEL_MODE_BGRA: |
- { |
- FT_Byte* s = source->buffer; |
- FT_Byte* t = target->buffer; |
- FT_Int s_pitch = source->pitch; |
- FT_Int t_pitch = target->pitch; |
- FT_Int i; |
- |
- |
- target->num_grays = 256; |
- |
- for ( i = source->rows; i > 0; i-- ) |
- { |
- FT_Byte* ss = s; |
- FT_Byte* tt = t; |
- FT_Int j; |
- |
- |
- for ( j = source->width; j > 0; j-- ) |
- { |
- tt[0] = ft_gray_for_premultiplied_srgb_bgra( ss ); |
- |
- ss += 4; |
- tt += 1; |
- } |
- |
- s += s_pitch; |
- t += t_pitch; |
- } |
- } |
- break; |
- |
- default: |
- ; |
- } |
- |
- return error; |
- } |
- |
- |
- /* documentation is in ftbitmap.h */ |
- |
- FT_EXPORT_DEF( FT_Error ) |
- FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot slot ) |
- { |
- if ( slot && slot->format == FT_GLYPH_FORMAT_BITMAP && |
- !( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) ) |
- { |
- FT_Bitmap bitmap; |
- FT_Error error; |
- |
- |
- FT_Bitmap_New( &bitmap ); |
- error = FT_Bitmap_Copy( slot->library, &slot->bitmap, &bitmap ); |
- if ( error ) |
- return error; |
- |
- slot->bitmap = bitmap; |
- slot->internal->flags |= FT_GLYPH_OWN_BITMAP; |
- } |
- |
- return FT_Err_Ok; |
- } |
- |
- |
- /* documentation is in ftbitmap.h */ |
- |
- FT_EXPORT_DEF( FT_Error ) |
- FT_Bitmap_Done( FT_Library library, |
- FT_Bitmap *bitmap ) |
- { |
- FT_Memory memory; |
- |
- |
- if ( !library ) |
- return FT_THROW( Invalid_Library_Handle ); |
- |
- if ( !bitmap ) |
- return FT_THROW( Invalid_Argument ); |
- |
- memory = library->memory; |
- |
- FT_FREE( bitmap->buffer ); |
- *bitmap = null_bitmap; |
- |
- return FT_Err_Ok; |
- } |
- |
- |
-/* END */ |
-#endif |
- |