X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fgtk2%2Fproducer_pango.c;h=84082dbef78916ae07377c2d45b48f5142b103e4;hb=f72aa424b78f26cd3b88f1c8c079bf13b6773e99;hp=a626a9db60e78e02295444ccdb9f7ca527a532f6;hpb=74268cd86c30a0af9f03981c799aa4bba253c6e9;p=melted diff --git a/src/modules/gtk2/producer_pango.c b/src/modules/gtk2/producer_pango.c index a626a9d..84082db 100644 --- a/src/modules/gtk2/producer_pango.c +++ b/src/modules/gtk2/producer_pango.c @@ -25,6 +25,7 @@ #include #include #include +#include struct producer_pango_s { @@ -32,6 +33,7 @@ struct producer_pango_s int width; int height; uint8_t *image; + uint8_t *alpha; char *fgcolor; char *bgcolor; int align; @@ -39,6 +41,7 @@ struct producer_pango_s char *markup; char *text; char *font; + int weight; }; // special color type used by internal pango routines @@ -52,7 +55,40 @@ static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int ind static void producer_close( mlt_producer parent ); static void pango_draw_background( GdkPixbuf *pixbuf, rgba_color bg ); static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const char *font, - rgba_color fg, rgba_color bg, int pad, int align ); + rgba_color fg, rgba_color bg, int pad, int align, int weight, int size ); + +/** Return nonzero if the two strings are equal, ignoring case, up to + the first n characters. +*/ +int strncaseeq(const char *s1, const char *s2, size_t n) +{ + for ( ; n > 0; n--) + { + if (tolower(*s1++) != tolower(*s2++)) + return 0; + } + return 1; +} + +/** Parse the alignment property. +*/ + +static int alignment_parse( char* align ) +{ + int ret = pango_align_left; + + if ( align == NULL ); + else if ( isdigit( align[ 0 ] ) ) + ret = atoi( align ); + else if ( align[ 0 ] == 'c' || align[ 0 ] == 'm' ) + ret = pango_align_center; + else if ( align[ 0 ] == 'r' ) + ret = pango_align_right; + + return ret; +} + +static PangoFT2FontMap *fontmap = NULL; mlt_producer producer_pango_init( const char *filename ) { @@ -61,14 +97,18 @@ mlt_producer producer_pango_init( const char *filename ) { mlt_producer producer = &this->parent; + // THIS SHOULD BE MUTEXED... + if ( fontmap == NULL ) + fontmap = (PangoFT2FontMap*) pango_ft2_font_map_new(); + producer->get_frame = producer_get_frame; - producer->close = producer_close; + producer->close = ( mlt_destructor )producer_close; // This is required to initialise gdk-pixbuf g_type_init(); // Get the properties interface - mlt_properties properties = mlt_producer_properties( &this->parent ); + mlt_properties properties = MLT_PRODUCER_PROPERTIES( &this->parent ); // Set the default properties mlt_properties_set( properties, "fgcolour", "0xffffffff" ); @@ -77,10 +117,11 @@ mlt_producer producer_pango_init( const char *filename ) mlt_properties_set_int( properties, "pad", 0 ); mlt_properties_set( properties, "text", "" ); mlt_properties_set( properties, "font", "Sans 48" ); + mlt_properties_set( properties, "encoding", "UTF-8" ); + mlt_properties_set_int( properties, "weight", PANGO_WEIGHT_NORMAL ); if ( filename == NULL ) { - mlt_properties_set( properties, "resource", "pango" ); mlt_properties_set( properties, "markup", "" ); } else if ( filename[ 0 ] == '+' || strstr( filename, "/+" ) ) @@ -130,7 +171,6 @@ mlt_producer producer_pango_init( const char *filename ) } else { - mlt_properties_set( properties, "resource", "pango" ); mlt_properties_set( properties, "markup", "" ); } } @@ -203,13 +243,43 @@ rgba_color parse_color( char *color ) return result; } +/** Convert a string property to UTF-8 +*/ +static int iconv_utf8( mlt_properties properties, char *prop_name, const char* encoding ) +{ + char *text = mlt_properties_get( properties, prop_name ); + int result = -1; + + iconv_t cd = iconv_open( "UTF-8", encoding ); + if ( cd != ( iconv_t )-1 ) + { + char *inbuf_p = text; + size_t inbuf_n = strlen( text ); + size_t outbuf_n = inbuf_n * 6; + char *outbuf = mlt_pool_alloc( outbuf_n ); + char *outbuf_p = outbuf; + + memset( outbuf, 0, outbuf_n ); + + if ( text != NULL && strcmp( text, "" ) && iconv( cd, &inbuf_p, &inbuf_n, &outbuf_p, &outbuf_n ) != -1 ) + mlt_properties_set( properties, prop_name, outbuf ); + else + mlt_properties_set( properties, prop_name, "" ); + + mlt_pool_release( outbuf ); + iconv_close( cd ); + result = 0; + } + return result; +} + static void refresh_image( mlt_frame frame, int width, int height ) { // Pixbuf GdkPixbuf *pixbuf = NULL; // Obtain properties of frame - mlt_properties properties = mlt_frame_properties( frame ); + mlt_properties properties = MLT_FRAME_PROPERTIES( frame ); // Obtain the producer pango for this frame producer_pango this = mlt_properties_get_data( properties, "producer_pango", NULL ); @@ -218,25 +288,29 @@ static void refresh_image( mlt_frame frame, int width, int height ) mlt_producer producer = &this->parent; // Obtain the producer properties - mlt_properties producer_props = mlt_producer_properties( producer ); + mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer ); // Get producer properties char *fg = mlt_properties_get( producer_props, "fgcolour" ); char *bg = mlt_properties_get( producer_props, "bgcolour" ); - int align = mlt_properties_get_int( producer_props, "align" ); + int align = alignment_parse( mlt_properties_get( producer_props, "align" ) ); int pad = mlt_properties_get_int( producer_props, "pad" ); char *markup = mlt_properties_get( producer_props, "markup" ); char *text = mlt_properties_get( producer_props, "text" ); char *font = mlt_properties_get( producer_props, "font" ); - + char *encoding = mlt_properties_get( producer_props, "encoding" ); + int weight = mlt_properties_get_int( producer_props, "weight" ); + int size = mlt_properties_get_int( producer_props, "size" ); + // See if any properties changed - int property_changed = ( this->fgcolor == NULL || strcmp( fg, this->fgcolor ) ); - property_changed = property_changed || ( this->bgcolor == NULL || strcmp( bg, this->bgcolor ) ); - property_changed = property_changed || ( align != this->align ); + int property_changed = ( align != this->align ); + property_changed = property_changed || ( this->fgcolor == NULL || ( fg && strcmp( fg, this->fgcolor ) ) ); + property_changed = property_changed || ( this->bgcolor == NULL || ( bg && strcmp( bg, this->bgcolor ) ) ); property_changed = property_changed || ( pad != this->pad ); property_changed = property_changed || ( markup && this->markup && strcmp( markup, this->markup ) ); property_changed = property_changed || ( text && this->text && strcmp( text, this->text ) ); property_changed = property_changed || ( font && this->font && strcmp( font, this->font ) ); + property_changed = property_changed || ( weight != this->weight ); // Save the properties for next comparison this->align = align; @@ -246,14 +320,35 @@ static void refresh_image( mlt_frame frame, int width, int height ) set_string( &this->markup, markup, NULL ); set_string( &this->text, text, NULL ); set_string( &this->font, font, "Sans 48" ); + this->weight = weight; if ( property_changed ) { rgba_color fgcolor = parse_color( this->fgcolor ); rgba_color bgcolor = parse_color( this->bgcolor ); + mlt_pool_release( this->image ); + mlt_pool_release( this->alpha ); + this->image = NULL; + this->alpha = NULL; + + // Convert from specified encoding to UTF-8 + if ( encoding != NULL && !strncaseeq( encoding, "utf-8", 5 ) && !strncaseeq( encoding, "utf8", 4 ) ) + { + if ( markup != NULL && iconv_utf8( producer_props, "markup", encoding ) != -1 ) + { + markup = mlt_properties_get( producer_props, "markup" ); + set_string( &this->markup, markup, NULL ); + } + if ( text != NULL && iconv_utf8( producer_props, "text", encoding ) != -1 ) + { + text = mlt_properties_get( producer_props, "text" ); + set_string( &this->text, text, NULL ); + } + } + // Render the title - pixbuf = pango_get_pixbuf( markup, text, font, fgcolor, bgcolor, pad, align ); + pixbuf = pango_get_pixbuf( markup, text, font, fgcolor, bgcolor, pad, align, weight, size ); if ( pixbuf != NULL ) { @@ -266,45 +361,52 @@ static void refresh_image( mlt_frame frame, int width, int height ) // Store the width/height of the pixbuf temporarily this->width = gdk_pixbuf_get_width( pixbuf ); this->height = gdk_pixbuf_get_height( pixbuf ); - - mlt_properties_set_int( producer_props, "bpp", gdk_pixbuf_get_has_alpha( pixbuf ) ? 4 : 3 ); } } - else if ( this->image == NULL || width != this->width || height != this->height ) + else if ( width > 0 && ( this->image == NULL || width != this->width || height != this->height ) ) { + mlt_pool_release( this->image ); + mlt_pool_release( this->alpha ); + this->image = NULL; + this->alpha = NULL; + pixbuf = mlt_properties_get_data( producer_props, "pixbuf", NULL ); - mlt_properties_set_int( producer_props, "bpp", gdk_pixbuf_get_has_alpha( pixbuf ) ? 4 : 3 ); } - int bpp = mlt_properties_get_int( producer_props, "bpp" ); - // If we have a pixbuf and a valid width if ( pixbuf && width > 0 ) { - int i; - + char *interps = mlt_properties_get( properties, "rescale.interp" ); + int interp = GDK_INTERP_BILINEAR; + + if ( strcmp( interps, "nearest" ) == 0 ) + interp = GDK_INTERP_NEAREST; + else if ( strcmp( interps, "tiles" ) == 0 ) + interp = GDK_INTERP_TILES; + else if ( strcmp( interps, "hyper" ) == 0 ) + interp = GDK_INTERP_HYPER; + +// fprintf( stderr, "SCALING PANGO from %dx%d to %dx%d was %dx%d\n", gdk_pixbuf_get_width( pixbuf ), gdk_pixbuf_get_height( pixbuf ), width, height, this->width, this->height ); + // Note - the original pixbuf is already safe and ready for destruction - pixbuf = gdk_pixbuf_scale_simple( pixbuf, width, height, GDK_INTERP_HYPER ); + pixbuf = gdk_pixbuf_scale_simple( pixbuf, width, height, interp ); // Store width and height - this->width = gdk_pixbuf_get_width( pixbuf ); - this->height = gdk_pixbuf_get_height( pixbuf ); + this->width = width; + this->height = height; // Allocate/define image - // IRRIGATE ME - uint8_t *image = malloc( this->width * ( this->height + 1 )* bpp ); + this->image = mlt_pool_alloc( width * ( height + 1 ) * 2 ); + this->alpha = mlt_pool_alloc( this->width * this->height ); - for ( i = 0; i < height; i++ ) - memcpy( image + i * width * bpp, - gdk_pixbuf_get_pixels( pixbuf ) + i * gdk_pixbuf_get_rowstride( pixbuf ), - gdk_pixbuf_get_width( pixbuf ) * bpp ); + // Convert the image + mlt_convert_rgb24a_to_yuv422( gdk_pixbuf_get_pixels( pixbuf ), + this->width, this->height, + gdk_pixbuf_get_rowstride( pixbuf ), + this->image, this->alpha ); // Finished with pixbuf now g_object_unref( pixbuf ); - - // reference the image in the producer - free( this->image ); - this->image = image; } // Set width/height @@ -314,20 +416,24 @@ static void refresh_image( mlt_frame frame, int width, int height ) mlt_properties_set_int( properties, "real_height", mlt_properties_get_int( producer_props, "real_height" ) ); // pass the image data without destructor - mlt_properties_set_data( properties, "image", this->image, this->width * ( this->height + 1 ) * bpp, NULL, NULL ); + mlt_properties_set_data( properties, "image", this->image, this->width * ( this->height + 1 ) * 2, NULL, NULL ); + mlt_properties_set_data( properties, "alpha", this->alpha, this->width * this->height, NULL, NULL ); } static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable ) { // Obtain properties of frame - mlt_properties properties = mlt_frame_properties( frame ); + mlt_properties properties = MLT_FRAME_PROPERTIES( frame ); + + *width = mlt_properties_get_int( properties, "rescale_width" ); + *height = mlt_properties_get_int( properties, "rescale_height" ); // Refresh the image refresh_image( frame, *width, *height ); // Determine format - mlt_producer this = mlt_properties_get_data( properties, "producer_pango", NULL ); - *format = ( mlt_properties_get_int( mlt_producer_properties( this ), "bpp" ) == 4 ) ? mlt_image_rgb24a : mlt_image_rgb24; + //mlt_producer this = mlt_properties_get_data( properties, "producer_pango", NULL ); + //*format = ( mlt_properties_get_int( MLT_PRODUCER_PROPERTIES( this ), "bpp" ) == 4 ) ? mlt_image_rgb24a : mlt_image_rgb24; // May need to know the size of the image to clone it int size = 0; @@ -343,15 +449,15 @@ static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_form if ( writable ) { // Clone our image - // IRRIGATE ME - uint8_t *copy = malloc( size ); - memcpy( copy, image, size ); + uint8_t *copy = mlt_pool_alloc( size ); + if ( copy != NULL && image != NULL ) + memcpy( copy, image, size ); // We're going to pass the copy on image = copy; // Now update properties so we free the copy after - mlt_properties_set_data( properties, "image", copy, size, free, NULL ); + mlt_properties_set_data( properties, "image", copy, size, ( mlt_destructor )mlt_pool_release, NULL ); } // Pass on the image @@ -360,6 +466,15 @@ static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_form return 0; } +static uint8_t *producer_get_alpha_mask( mlt_frame this ) +{ + // Obtain properties of frame + mlt_properties properties = MLT_FRAME_PROPERTIES( this ); + + // Return the alpha mask + return mlt_properties_get_data( properties, "alpha", NULL ); +} + static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index ) { producer_pango this = producer->child; @@ -368,7 +483,7 @@ static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int i *frame = mlt_frame_init( ); // Obtain properties of frame and producer - mlt_properties properties = mlt_frame_properties( *frame ); + mlt_properties properties = MLT_FRAME_PROPERTIES( *frame ); // Set the producer on the frame properties mlt_properties_set_data( properties, "producer_pango", this, 0, NULL, NULL ); @@ -378,7 +493,10 @@ static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int i // Set producer-specific frame properties mlt_properties_set_int( properties, "progressive", 1 ); - mlt_properties_set_double( properties, "aspect_ratio", mlt_properties_get_double( properties, "real_width" ) / mlt_properties_get_double( properties, "real_height" ) ); + mlt_properties_set_double( properties, "aspect_ratio", 0 ); + + // Set alpha call back + ( *frame )->get_alpha_mask = producer_get_alpha_mask; // Stack the get image callback mlt_frame_push_get_image( *frame, producer_get_image ); @@ -395,7 +513,8 @@ static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int i static void producer_close( mlt_producer parent ) { producer_pango this = parent->child; - free( this->image ); + mlt_pool_release( this->image ); + mlt_pool_release( this->alpha ); free( this->fgcolor ); free( this->bgcolor ); free( this->markup ); @@ -425,9 +544,8 @@ static void pango_draw_background( GdkPixbuf *pixbuf, rgba_color bg ) } } -static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const char *font, rgba_color fg, rgba_color bg, int pad, int align ) +static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const char *font, rgba_color fg, rgba_color bg, int pad, int align, int weight, int size ) { - PangoFT2FontMap *fontmap = (PangoFT2FontMap*) pango_ft2_font_map_new(); PangoContext *context = pango_ft2_font_map_create_context( fontmap ); PangoLayout *layout = pango_layout_new( context ); int w, h, x; @@ -436,11 +554,16 @@ static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const FT_Bitmap bitmap; uint8_t *src = NULL; uint8_t* dest = NULL; + uint8_t *d, *s, a; int stride; + PangoFontDescription *desc = pango_font_description_from_string( font ); pango_ft2_font_map_set_resolution( fontmap, 72, 72 ); pango_layout_set_width( layout, -1 ); // set wrapping constraints - pango_layout_set_font_description( layout, pango_font_description_from_string( font ) ); + pango_font_description_set_weight( desc, ( PangoWeight ) weight ); + if ( size != 0 ) + pango_font_description_set_size( desc, PANGO_SCALE * size ); + pango_layout_set_font_description( layout, desc ); // pango_layout_set_spacing( layout, space ); pango_layout_set_alignment( layout, ( PangoAlignment ) align ); if ( markup != NULL && strcmp( markup, "" ) != 0 ) @@ -448,7 +571,7 @@ static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const else if ( text != NULL && strcmp( text, "" ) != 0 ) pango_layout_set_text( layout, text, strlen( text ) ); else - return NULL; + pango_layout_set_text( layout, " ", 2 ); pango_layout_get_pixel_size( layout, &w, &h ); pixbuf = gdk_pixbuf_new( GDK_COLORSPACE_RGB, TRUE /* has alpha */, 8, w + 2 * pad, h + 2 * pad ); @@ -459,34 +582,39 @@ static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const bitmap.width = w; bitmap.pitch = 32 * ( ( w + 31 ) / 31 ); bitmap.rows = h; - bitmap.buffer = ( unsigned char * ) calloc( 1, h * bitmap.pitch ); + bitmap.buffer = mlt_pool_alloc( h * bitmap.pitch ); bitmap.num_grays = 256; bitmap.pixel_mode = ft_pixel_mode_grays; + memset( bitmap.buffer, 0, h * bitmap.pitch ); + pango_ft2_render_layout( &bitmap, layout, 0, 0 ); src = bitmap.buffer; x = ( gdk_pixbuf_get_width( pixbuf ) - w - 2 * pad ) * align / 2 + pad; dest = gdk_pixbuf_get_pixels( pixbuf ) + 4 * x + pad * stride; - for ( j = 0; j < h; j++ ) + j = h; + + while( j -- ) { - uint8_t *d = dest; - for ( i = 0; i < w; i++ ) + d = dest; + s = src; + i = w; + while( i -- ) { - float a = ( float ) bitmap.buffer[ j * bitmap.pitch + i ] / 255.0; - *d++ = ( int ) ( a * fg.r + ( 1 - a ) * bg.r ); - *d++ = ( int ) ( a * fg.g + ( 1 - a ) * bg.g ); - *d++ = ( int ) ( a * fg.b + ( 1 - a ) * bg.b ); - *d++ = ( int ) ( a * fg.a + ( 1 - a ) * bg.a ); + a = *s ++; + *d++ = ( a * fg.r + ( 255 - a ) * bg.r ) >> 8; + *d++ = ( a * fg.g + ( 255 - a ) * bg.g ) >> 8; + *d++ = ( a * fg.b + ( 255 - a ) * bg.b ) >> 8; + *d++ = ( a * fg.a + ( 255 - a ) * bg.a ) >> 8; } dest += stride; + src += bitmap.pitch; } - free( bitmap.buffer ); - + mlt_pool_release( bitmap.buffer ); + pango_font_description_free( desc ); g_object_unref( layout ); g_object_unref( context ); - g_object_unref( fontmap ); return pixbuf; } -