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Commit d40dd9f0 authored by Naohiro KORIYAMA's avatar Naohiro KORIYAMA Committed by Francois Cartegnie
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quartztext: support kerning and some text attributes 

Signed-off-by: default avatarFrancois Cartegnie <fcvlcdev@free.fr>
parent cd4e7fa8
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Showing with 43 additions and 4 deletions
modules/text_renderer/quartztext.c
View file @ d40dd9f0
......@@ -80,6 +80,7 @@ static int RenderYUVA(filter_t *p_filter, subpicture_region_t *p_region,
static void setFontAttibutes(char *psz_fontname, int i_font_size, uint32_t i_font_color,
bool b_bold, bool b_italic, bool b_underline, bool b_halfwidth,
int i_spacing,
CFRange p_range, CFMutableAttributedStringRef p_attrString);
/*****************************************************************************
......@@ -100,6 +101,8 @@ static void setFontAttibutes(char *psz_fontname, int i_font_size, uint32_t i_fon
"the video. This must be an hexadecimal (like HTML colors). The first two "\
"chars are for red, then green, then blue. #000000 = black, #FF0000 = red,"\
" #00FF00 = green, #FFFF00 = yellow (red + green), #FFFFFF = white")
#define OUTLINE_TEXT N_("Add outline")
#define SHADOW_TEXT N_("Add shadow")
static const int pi_color_values[] = {
0x00000000, 0x00808080, 0x00C0C0C0, 0x00FFFFFF, 0x00800000,
......@@ -134,6 +137,8 @@ vlc_module_begin ()
add_integer("quartztext-color", 0x00FFFFFF, COLOR_TEXT,
COLOR_LONGTEXT, false)
change_integer_list(pi_color_values, ppsz_color_descriptions)
add_bool("quartztext-outline", false, OUTLINE_TEXT, NULL, false)
add_bool("quartztext-shadow", true, SHADOW_TEXT, NULL, false)
set_capability("text renderer", 50)
add_shortcut("text")
set_callbacks(Create, Destroy)
......@@ -181,6 +186,8 @@ struct filter_sys_t
uint8_t i_font_opacity;
int i_font_color;
int i_font_size;
bool b_outline;
bool b_shadow;
#ifndef TARGET_OS_IPHONE
ATSFontContainerRef *p_fonts;
......@@ -205,6 +212,8 @@ static int Create(vlc_object_t *p_this)
p_sys->psz_font_name = var_CreateGetString(p_this, "quartztext-font");
p_sys->i_font_opacity = 255;
p_sys->i_font_color = VLC_CLIP(var_CreateGetInteger(p_this, "quartztext-color") , 0, 0xFFFFFF);
p_sys->b_outline = var_InheritBool(p_this, "quartztext-outline");
p_sys->b_shadow = var_InheritBool(p_this, "quartztext-shadow");
p_sys->i_font_size = GetFontSize(p_filter);
p_filter->pf_render_text = RenderText;
......@@ -311,6 +320,7 @@ static int RenderText(filter_t *p_filter, subpicture_region_t *p_region_out,
filter_sys_t *p_sys = p_filter->p_sys;
char *psz_string;
int i_font_size;
int i_spacing = 0;
uint32_t i_font_color;
bool b_bold, b_uline, b_italic, b_halfwidth;
vlc_value_t val;
......@@ -340,6 +350,7 @@ static int RenderText(filter_t *p_filter, subpicture_region_t *p_region_out,
if (p_region_in->p_style->i_style_flags & STYLE_HALFWIDTH)
b_halfwidth = TRUE;
}
i_spacing = VLC_CLIP(p_region_in->p_style->i_spacing, 0, 255);
} else {
i_font_color = p_sys->i_font_color;
i_font_size = p_sys->i_font_size;
......@@ -369,6 +380,7 @@ static int RenderText(filter_t *p_filter, subpicture_region_t *p_region_out,
len = CFAttributedStringGetLength(p_attrString);
setFontAttibutes(p_sys->psz_font_name, i_font_size, i_font_color, b_bold, b_italic, b_uline, b_halfwidth,
i_spacing,
CFRangeMake(0, len), p_attrString);
RenderYUVA(p_filter, p_region_out, p_attrString);
......@@ -526,6 +538,7 @@ static int HandleFontAttributes(xml_reader_t *p_xml_reader,
static void setFontAttibutes(char *psz_fontname, int i_font_size, uint32_t i_font_color,
bool b_bold, bool b_italic, bool b_underline, bool b_halfwidth,
int i_spacing,
CFRange p_range, CFMutableAttributedStringRef p_attrString)
{
CFStringRef p_cfString;
......@@ -613,6 +626,18 @@ static void setFontAttibutes(char *psz_fontname, int i_font_size, uint32_t i_fon
fg_text);
CFRelease(fg_text);
// spacing
if (i_spacing > 0)
{
CGFloat spacing = i_spacing;
CFNumberRef spacingCFNum = CFNumberCreate(NULL,
kCFNumberCGFloatType, &spacing);
CFAttributedStringSetAttribute(p_attrString,
p_range,
kCTKernAttributeName,
spacingCFNum);
CFRelease(spacingCFNum);
}
}
static void GetAttrStrFromFontStack(font_stack_t **p_fonts,
......@@ -629,6 +654,7 @@ static void GetAttrStrFromFontStack(font_stack_t **p_fonts,
i_font_size,
i_font_color,
b_bold, b_italic, b_uline, FALSE,
0,
p_range,
p_attrString);
}
......@@ -867,12 +893,14 @@ static CGContextRef CreateOffScreenContext(int i_width, int i_height,
return p_context;
}
static offscreen_bitmap_t *Compose( subpicture_region_t *p_region,
static offscreen_bitmap_t *Compose(filter_t *p_filter,
subpicture_region_t *p_region,
CFMutableAttributedStringRef p_attrString,
unsigned i_width,
unsigned i_height,
unsigned *pi_textblock_height)
{
filter_sys_t *p_sys = p_filter->p_sys;
offscreen_bitmap_t *p_offScreen = NULL;
CGColorSpaceRef p_colorSpace = NULL;
CGContextRef p_context = NULL;
......@@ -909,8 +937,19 @@ static offscreen_bitmap_t *Compose( subpicture_region_t *p_region,
CGPathRelease(p_path);
// Set up black outlining of the text --
CGContextSetRGBStrokeColor(p_context, 0, 0, 0, 0.5);
CGContextSetTextDrawingMode(p_context, kCGTextFillStroke);
if (p_sys->b_outline)
{
CGContextSetRGBStrokeColor(p_context, 0, 0, 0, 0.5);
CGContextSetTextDrawingMode(p_context, kCGTextFillStroke);
}
// Shadow
if (p_sys->b_shadow)
{
// TODO: Use CGContextSetShadowWithColor.
// TODO: Use user defined parrameters (color, distance, etc.)
CGContextSetShadow(p_context, CGSizeMake(3.0f, -3.0f), 2.0f);
}
if (frame != NULL) {
CFArrayRef lines;
......@@ -983,7 +1022,7 @@ static int RenderYUVA(filter_t *p_filter, subpicture_region_t *p_region,
return VLC_EGENERIC;
}
p_offScreen = Compose( p_region, p_attrString,
p_offScreen = Compose(p_filter, p_region, p_attrString,
i_width, i_height, &i_textblock_height);
if (!p_offScreen) {
......
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