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initial copy of poppler-0.76.0 Cairo files

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This commit is contained in:
Stephen Gaito 2019-09-26 14:41:38 +01:00
parent f9fcd7f8bb
commit c4c4a9c068
2 changed files with 17 additions and 16 deletions
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6
3rdparty/poppler/git/CairoFontEngine.cc vendored
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@ -17,7 +17,7 @@
// Copyright (C) 2005-2007 Jeff Muizelaar <jeff@infidigm.net> // Copyright (C) 2005-2007 Jeff Muizelaar <jeff@infidigm.net>
// Copyright (C) 2005, 2006 Kristian Høgsberg <krh@redhat.com> // Copyright (C) 2005, 2006 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2005 Martin Kretzschmar <martink@gnome.org> // Copyright (C) 2005 Martin Kretzschmar <martink@gnome.org>
// Copyright (C) 2005, 2009, 2012, 2013, 2015, 2017, 2018 Albert Astals Cid <aacid@kde.org> // Copyright (C) 2005, 2009, 2012, 2013, 2015, 2017-2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2006, 2007, 2010, 2011 Carlos Garcia Campos <carlosgc@gnome.org> // Copyright (C) 2006, 2007, 2010, 2011 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2007 Koji Otani <sho@bbr.jp> // Copyright (C) 2007 Koji Otani <sho@bbr.jp>
// Copyright (C) 2008, 2009 Chris Wilson <chris@chris-wilson.co.uk> // Copyright (C) 2008, 2009 Chris Wilson <chris@chris-wilson.co.uk>
@ -80,7 +80,7 @@ CairoFont::~CairoFont() {
bool bool
CairoFont::matches(Ref &other, bool printingA) { CairoFont::matches(Ref &other, bool printingA) {
return (other.num == ref.num && other.gen == ref.gen); return (other == ref);
} }
cairo_font_face_t * cairo_font_face_t *
@ -783,7 +783,7 @@ CairoType3Font::~CairoType3Font() { }
bool bool
CairoType3Font::matches(Ref &other, bool printingA) { CairoType3Font::matches(Ref &other, bool printingA) {
return (other.num == ref.num && other.gen == ref.gen && printing == printingA); return (other == ref && printing == printingA);
} }

27
3rdparty/poppler/git/CairoRescaleBox.cc vendored
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@ -34,6 +34,7 @@
// Copyright (C) 2012, 2017 Adrian Johnson <ajohnson@redneon.com> // Copyright (C) 2012, 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de> // Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
// Copyright (C) 2019 Albert Astals Cid <aacid@kde.org> // Copyright (C) 2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2019 Marek Kasik <mkasik@redhat.com>
// //
// To see a description of the changes please see the Changelog file that // To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git // came with your tarball or type make ChangeLog if you are building from git
@ -61,7 +62,7 @@
static void downsample_row_box_filter ( static void downsample_row_box_filter (
int start, int width, int start, int width,
uint32_t *src, uint32_t *dest, uint32_t *src, uint32_t *src_limit, uint32_t *dest,
int coverage[], int pixel_coverage) int coverage[], int pixel_coverage)
{ {
/* we need an array of the pixel contribution of each destination pixel on the boundaries. /* we need an array of the pixel contribution of each destination pixel on the boundaries.
@ -89,13 +90,13 @@ static void downsample_row_box_filter (
/* skip to start */ /* skip to start */
/* XXX: it might be possible to do this directly instead of iteratively, however /* XXX: it might be possible to do this directly instead of iteratively, however
* the iterative solution is simple */ * the iterative solution is simple */
while (x < start) while (x < start && src < src_limit)
{ {
int box = 1 << FIXED_SHIFT; int box = 1 << FIXED_SHIFT;
int start_coverage = coverage[x]; int start_coverage = coverage[x];
box -= start_coverage; box -= start_coverage;
src++; src++;
while (box >= pixel_coverage) while (box >= pixel_coverage && src < src_limit)
{ {
src++; src++;
box -= pixel_coverage; box -= pixel_coverage;
@ -103,7 +104,7 @@ static void downsample_row_box_filter (
x++; x++;
} }
while (x < start + width) while (x < start + width && src < src_limit)
{ {
uint32_t a = 0; uint32_t a = 0;
uint32_t r = 0; uint32_t r = 0;
@ -120,7 +121,7 @@ static void downsample_row_box_filter (
x++; x++;
box -= start_coverage; box -= start_coverage;
while (box >= pixel_coverage) while (box >= pixel_coverage && src < src_limit)
{ {
a += ((*src >> 24) & 0xff) * pixel_coverage; a += ((*src >> 24) & 0xff) * pixel_coverage;
r += ((*src >> 16) & 0xff) * pixel_coverage; r += ((*src >> 16) & 0xff) * pixel_coverage;
@ -134,7 +135,7 @@ static void downsample_row_box_filter (
/* multiply by whatever is leftover /* multiply by whatever is leftover
* this ensures that we don't bias down. * this ensures that we don't bias down.
* i.e. start_coverage + n*pixel_coverage + box == 1 << 24 */ * i.e. start_coverage + n*pixel_coverage + box == 1 << 24 */
if (box > 0) if (box > 0 && src < src_limit)
{ {
a += ((*src >> 24) & 0xff) * box; a += ((*src >> 24) & 0xff) * box;
r += ((*src >> 16) & 0xff) * box; r += ((*src >> 16) & 0xff) * box;
@ -226,10 +227,10 @@ static int compute_coverage (int coverage[], int src_length, int dest_length)
/* I have a proof of this, which this margin is too narrow to contain */ /* I have a proof of this, which this margin is too narrow to contain */
for (i=0; i<dest_length; i++) for (i=0; i<dest_length; i++)
{ {
float left_side = i*scale; double left_side = i*scale;
float right_side = (i+1)*scale; double right_side = (i+1)*scale;
float right_fract = right_side - floor (right_side); double right_fract = right_side - floor (right_side);
float left_fract = ceil (left_side) - left_side; double left_fract = ceil (left_side) - left_side;
int overage; int overage;
/* find out how many source pixels will be used to fill the box */ /* find out how many source pixels will be used to fill the box */
int count = floor (right_side) - ceil (left_side); int count = floor (right_side) - ceil (left_side);
@ -336,7 +337,7 @@ bool CairoRescaleBox::downScaleImage(unsigned orig_width, unsigned orig_height,
int start_coverage_y = y_coverage[dest_y]; int start_coverage_y = y_coverage[dest_y];
getRow(src_y, scanline); getRow(src_y, scanline);
downsample_row_box_filter (start_column, width, scanline, temp_buf + width * columns, x_coverage, pixel_coverage_x); downsample_row_box_filter (start_column, width, scanline, scanline + orig_width, temp_buf + width * columns, x_coverage, pixel_coverage_x);
columns++; columns++;
src_y++; src_y++;
box -= start_coverage_y; box -= start_coverage_y;
@ -344,7 +345,7 @@ bool CairoRescaleBox::downScaleImage(unsigned orig_width, unsigned orig_height,
while (box >= pixel_coverage_y) while (box >= pixel_coverage_y)
{ {
getRow(src_y, scanline); getRow(src_y, scanline);
downsample_row_box_filter (start_column, width, scanline, temp_buf + width * columns, x_coverage, pixel_coverage_x); downsample_row_box_filter (start_column, width, scanline, scanline + orig_width, temp_buf + width * columns, x_coverage, pixel_coverage_x);
columns++; columns++;
src_y++; src_y++;
box -= pixel_coverage_y; box -= pixel_coverage_y;
@ -354,7 +355,7 @@ bool CairoRescaleBox::downScaleImage(unsigned orig_width, unsigned orig_height,
if (box > 0) if (box > 0)
{ {
getRow(src_y, scanline); getRow(src_y, scanline);
downsample_row_box_filter (start_column, width, scanline, temp_buf + width * columns, x_coverage, pixel_coverage_x); downsample_row_box_filter (start_column, width, scanline, scanline + orig_width, temp_buf + width * columns, x_coverage, pixel_coverage_x);
columns++; columns++;
} }