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Various minor color fixes. 

* include/freetype/config/ftheader.h (FT_COLOR_H): New macro.

* include/freetype/internal/ftobjs.h (FT_Colr_Internal): Change
type of `load_flags' to `FT_Int32'.

* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Change
type of `idx' to `FT_UInt'.
(TT_Blend_Colr_Func): Change type of `color_index' to `FT_UInt'.

* src/base/ftobjs.c (FT_Render_Glyph_Internal): Change type of
`load_flags' to `FT_Int32'.

* src/sfnt/ttcolr.c (find_base_glyph_record,
tt_face_load_colr_layers): Change type of `glyph_id' to `FT_UInt'.
(tt_face_find_color, tt_face_colr_blend_layer): Change type of
`color_index' to `FT_UInt'.
Fix signedness and type issues.

* src/sfnt/ttcolr.h: Updated.
This commit is contained in:
Werner Lemberg 2018-05-30 09:34:57 +02:00
parent 51fee65583
commit ae2cd1b749
9 changed files with 99 additions and 42 deletions
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24
ChangeLog
View File

@ -1,3 +1,27 @@
2018-05-30 Werner Lemberg <wl@gnu.org>
Various minor color fixes.
* include/freetype/config/ftheader.h (FT_COLOR_H): New macro.
* include/freetype/internal/ftobjs.h (FT_Colr_Internal): Change
type of `load_flags' to `FT_Int32'.
* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Change
type of `idx' to `FT_UInt'.
(TT_Blend_Colr_Func): Change type of `color_index' to `FT_UInt'.
* src/base/ftobjs.c (FT_Render_Glyph_Internal): Change type of
`load_flags' to `FT_Int32'.
* src/sfnt/ttcolr.c (find_base_glyph_record,
tt_face_load_colr_layers): Change type of `glyph_id' to `FT_UInt'.
(tt_face_find_color, tt_face_colr_blend_layer): Change type of
`color_index' to `FT_UInt'.
Fix signedness and type issues.
* src/sfnt/ttcolr.h: Updated.
2018-05-25 Nikhil Ramakrishnan <ramakrishnan.nikhil@gmail.com>
[docmaker] Fix missing `Defined in (...)' under Windows/Cygwin.

12
include/freetype/config/ftheader.h
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@ -760,6 +760,18 @@
#define FT_ADVANCES_H <freetype/ftadvanc.h>
/*************************************************************************
*
* @macro:
* FT_COLOR_H
*
* @description:
* A macro used in #include statements to name the file containing the
* FreeType~2 API which handles the OpenType CPAL table.
*/
#define FT_COLOR_H <freetype/ftcolor.h>
/* */
/* These header files don't need to be included by the user. */

35
include/freetype/freetype.h
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@ -1226,8 +1226,8 @@ FT_BEGIN_HEADER
/* tricky fonts; they are hard-coded in file `ttobjs.c'. */
/* */
/* FT_FACE_FLAG_COLOR :: */
/* [Since 2.5.1] The face has color glyph tables. To access color */
/* glyphs use @FT_LOAD_COLOR. */
/* [Since 2.5.1] The face has color glyph tables. See */
/* @FT_LOAD_COLOR for more information. */
/* */
/* FT_FACE_FLAG_VARIATION :: */
/* [Since 2.9] Set if the current face (or named instance) has been */
@ -2959,11 +2959,24 @@ FT_BEGIN_HEADER
* Disable the auto-hinter. See also the note below.
*
* FT_LOAD_COLOR ::
* Load colored glyphs. There are slight differences depending on the
* font format.
*
* [Since 2.5] Load embedded color bitmap images. The resulting color
* bitmaps, if available, will have the @FT_PIXEL_MODE_BGRA format.
* If the flag is not set and color bitmaps are found, they are
* converted to 256-level gray bitmaps transparently, using the
* @FT_PIXEL_MODE_GRAY format.
* bitmaps, if available, will have the @FT_PIXEL_MODE_BGRA format,
* with pre-multiplied color channels. If the flag is not set and
* color bitmaps are found, they are converted to 256-level gray
* bitmaps, using the @FT_PIXEL_MODE_GRAY format.
*
* [Since 2.10] If the glyph index contains an entry in the face's
* `COLR' table with a `CPAL' palette table (as defined in the
* OpenType specification), make @FT_Render_Glyph provide a default
* blending of the color glyph layers associated with the glyph index,
* using the same bitmap format as embedded color bitmap images. This
* is mainly for convenience; for full control of color layers use
* @FT_Get_GlyphLayers and FreeType's color functions like
* @FT_Palette_Select instead of setting FT_LOAD_COLOR for rendering
* so that the client application can handle blending by itself.
*
* FT_LOAD_COMPUTE_METRICS ::
* [Since 2.6.1] Compute glyph metrics from the glyph data, without
@ -3272,6 +3285,14 @@ FT_BEGIN_HEADER
/* a bitmap. See @FT_Render_Mode for a list of */
/* possible values. */
/* */
/* If @FT_RENDER_MODE_NORMAL is used, the flag */
/* @FT_LOAD_COLOR can be additionally set to make the */
/* function provide a default blending of colored */
/* glyph layers associated with the current glyph slot */
/* (provided the font contains such layers) instead of */
/* rendering the glyph slot's outline. See */
/* @FT_LOAD_COLOR for more information. */
/* */
/* <Return> */
/* FreeType error code. 0~means success. */
/* */
@ -4073,7 +4094,7 @@ FT_BEGIN_HEADER
* to this information.
*
* @FT_Render_Glyph, however, handles colored glyph layers
* automatically.
* automatically if the @FT_LOAD_COLOR flag is passed to it.
*/
FT_EXPORT( FT_Error )
FT_Get_GlyphLayers( FT_GlyphSlot glyph,

16
include/freetype/ftcolor.h
View File

@ -74,7 +74,7 @@ FT_BEGIN_HEADER
* Alpha value, giving the red, green, and blue color's opacity.
*
* @since:
* 2.10.0
* 2.10
*/
typedef struct FT_Color_
{
@ -114,7 +114,7 @@ FT_BEGIN_HEADER
* `TT_CONFIG_OPTION_COLOR_LAYERS' is not defined in `ftoption.h'.
*
* @since:
* 2.10.0
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Palette_Get_Size( FT_Face face,
@ -153,7 +153,7 @@ FT_BEGIN_HEADER
* `TT_CONFIG_OPTION_COLOR_LAYERS' is not defined in `ftoption.h'.
*
* @since:
* 2.10.0
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Palette_Get_Names( FT_Face face,
@ -184,7 +184,7 @@ FT_BEGIN_HEADER
* @FT_Palette_Get_Size.
*
* @since:
* 2.10.0
* 2.10
*/
#define FT_PALETTE_USABLE_WITH_LIGHT_BACKGROUND 0x01
#define FT_PALETTE_USABLE_WITH_DARK_BACKGROUND 0x02
@ -220,7 +220,7 @@ FT_BEGIN_HEADER
* `TT_CONFIG_OPTION_COLOR_LAYERS' is not defined in `ftoption.h'.
*
* @since:
* 2.10.0
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Palette_Get_Types( FT_Face face,
@ -263,7 +263,7 @@ FT_BEGIN_HEADER
* `TT_CONFIG_OPTION_COLOR_LAYERS' is not defined in `ftoption.h'.
*
* @since:
* 2.10.0
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Palette_Get_Entry_Names( FT_Face face,
@ -316,7 +316,7 @@ FT_BEGIN_HEADER
* `TT_CONFIG_OPTION_COLOR_LAYERS' is not defined in `ftoption.h'.
*
* @since:
* 2.10.0
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Palette_Select( FT_Face face,
@ -348,7 +348,7 @@ FT_BEGIN_HEADER
* `TT_CONFIG_OPTION_COLOR_LAYERS' is not defined in `ftoption.h'.
*
* @since:
* 2.10.0
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Palette_Set_Foreground_COlor( FT_Face face,

2
include/freetype/internal/ftobjs.h
View File

@ -388,7 +388,7 @@ FT_BEGIN_HEADER
{
FT_Glyph_Layer layers;
FT_UShort num_layers;
FT_Int load_flags;
FT_Int32 load_flags;
} FT_Colr_InternalRec, *FT_Colr_Internal;

4
include/freetype/internal/sfnt.h
View File

@ -453,7 +453,7 @@ FT_BEGIN_HEADER
/* */
typedef FT_Error
(*TT_Load_Colr_Layer_Func)( TT_Face face,
FT_Int idx,
FT_UInt idx,
FT_Glyph_Layer *layers,
FT_UShort* num_layers );
@ -485,7 +485,7 @@ FT_BEGIN_HEADER
/* */
typedef FT_Error
(*TT_Blend_Colr_Func)( TT_Face face,
FT_Int color_index,
FT_UInt color_index,
FT_GlyphSlot base_glyph,
FT_GlyphSlot new_glyph );

2
src/base/ftobjs.c
View File

@ -4541,7 +4541,7 @@
idx < slot->internal->color_layers->num_layers;
idx++ )
{
FT_Int load_flags;
FT_Int32 load_flags;
load_flags = slot->internal->color_layers->load_flags

42
src/sfnt/ttcolr.c
View File

@ -256,7 +256,7 @@
static FT_Bool
find_base_glyph_record( FT_Byte* base_glyph_begin,
FT_Int num_base_glyph,
FT_UShort glyph_id,
FT_UInt glyph_id,
BaseGlyphRecord* record )
{
FT_Int min = 0;
@ -291,7 +291,7 @@
FT_LOCAL_DEF( FT_Error )
tt_face_load_colr_layers( TT_Face face,
FT_Int glyph_id,
FT_UInt glyph_id,
FT_Glyph_Layer *ret_layers,
FT_UShort* ret_num_layers )
{
@ -360,12 +360,12 @@
static FT_Bool
tt_face_find_color( TT_Face face,
FT_UShort color_index,
FT_Byte* blue,
FT_Byte* green,
FT_Byte* red,
FT_Byte* alpha )
tt_face_find_color( TT_Face face,
FT_UInt color_index,
FT_Byte* blue,
FT_Byte* green,
FT_Byte* red,
FT_Byte* alpha )
{
ColrCpal* colr_and_cpal = (ColrCpal *)face->colr_and_cpal;
Cpal* cpal = &colr_and_cpal->cpal;
@ -378,7 +378,7 @@
if ( color_index >= cpal->num_palettes_entries )
return 0;
p = cpal->color_indices + palette_index * sizeof ( FT_UShort );
p = cpal->color_indices + palette_index * (int)sizeof ( FT_UShort );
color_offset = FT_NEXT_USHORT( p );
@ -395,7 +395,7 @@
FT_LOCAL_DEF( FT_Error )
tt_face_colr_blend_layer( TT_Face face,
FT_Int color_index,
FT_UInt color_index,
FT_GlyphSlot dstSlot,
FT_GlyphSlot srcSlot )
{
@ -404,7 +404,7 @@
FT_UInt x, y;
FT_Byte b, g, r, alpha;
FT_Long size;
FT_ULong size;
FT_Byte* src;
FT_Byte* dst;
@ -419,10 +419,10 @@
dstSlot->bitmap.width = srcSlot->bitmap.width;
dstSlot->bitmap.rows = srcSlot->bitmap.rows;
dstSlot->bitmap.pixel_mode = FT_PIXEL_MODE_BGRA;
dstSlot->bitmap.pitch = dstSlot->bitmap.width * 4;
dstSlot->bitmap.pitch = (int)dstSlot->bitmap.width * 4;
dstSlot->bitmap.num_grays = 256;
size = dstSlot->bitmap.rows * dstSlot->bitmap.pitch;
size = dstSlot->bitmap.rows * (unsigned int)dstSlot->bitmap.pitch;
error = ft_glyphslot_alloc_bitmap( dstSlot, size );
if ( error )
@ -451,8 +451,8 @@
{
FT_Memory memory = face->root.memory;
FT_UInt width = x_max - x_min;
FT_UInt rows = y_max - y_min;
FT_UInt width = (FT_UInt)( x_max - x_min );
FT_UInt rows = (FT_UInt)( y_max - y_min );
FT_UInt pitch = width * 4;
FT_Byte* buf;
@ -466,7 +466,7 @@
p = dstSlot->bitmap.buffer;
q = buf +
pitch * ( y_max - dstSlot->bitmap_top ) +
(int)pitch * ( y_max - dstSlot->bitmap_top ) +
4 * ( dstSlot->bitmap_left - x_min );
for ( y = 0; y < dstSlot->bitmap.rows; y++ )
@ -484,7 +484,7 @@
dstSlot->bitmap.width = width;
dstSlot->bitmap.rows = rows;
dstSlot->bitmap.pitch = pitch;
dstSlot->bitmap.pitch = (int)pitch;
dstSlot->internal->flags |= FT_GLYPH_OWN_BITMAP;
dstSlot->format = FT_GLYPH_FORMAT_BITMAP;
@ -528,10 +528,10 @@
int ba = dst[4 * x + 3];
dst[4 * x + 0] = bb * ba2 / 255 + fb;
dst[4 * x + 1] = bg * ba2 / 255 + fg;
dst[4 * x + 2] = br * ba2 / 255 + fr;
dst[4 * x + 3] = ba * ba2 / 255 + fa;
dst[4 * x + 0] = (FT_Byte)( bb * ba2 / 255 + fb );
dst[4 * x + 1] = (FT_Byte)( bg * ba2 / 255 + fg );
dst[4 * x + 2] = (FT_Byte)( br * ba2 / 255 + fr );
dst[4 * x + 3] = (FT_Byte)( ba * ba2 / 255 + fa );
}
src += srcSlot->bitmap.pitch;

4
src/sfnt/ttcolr.h
View File

@ -38,13 +38,13 @@ FT_BEGIN_HEADER
FT_LOCAL( FT_Error )
tt_face_load_colr_layers( TT_Face face,
FT_Int glyph_id,
FT_UInt glyph_id,
FT_Glyph_Layer *ret_layers,
FT_UShort* ret_num_layers );
FT_LOCAL( FT_Error )
tt_face_colr_blend_layer( TT_Face face,
FT_Int color_index,
FT_UInt color_index,
FT_GlyphSlot dstSlot,
FT_GlyphSlot srcSlot );