214 lines
6.6 KiB
C
214 lines
6.6 KiB
C
/* -*- c-file-style: "ruby"; indent-tabs-mode: nil -*- */
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/*
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* Copyright (C) 2011 Ruby-GNOME2 Project Team
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* Copyright (C) 2002,2003 Masao Mutoh
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include "rbgdk-pixbuf2private.h"
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#define GDK_TYPE_PIXDATA (gdk_pixdata_get_type())
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#define RG_TARGET_NAMESPACE cPixdata
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#define _SELF(s) (RVAL2GDKPIXDATA(s))
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static ID id_pixdata;
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/*****************************************/
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static GdkPixdata *
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gdk_pixdata_copy(const GdkPixdata* src)
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{
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GdkPixdata* data;
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g_return_val_if_fail (src != NULL, NULL);
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data = g_new(GdkPixdata, 1);
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*data = *src;
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return data;
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}
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static GType
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gdk_pixdata_get_type(void)
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{
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static GType our_type = 0;
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if (our_type == 0)
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our_type = g_boxed_type_register_static ("GdkPixdata",
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(GBoxedCopyFunc)gdk_pixdata_copy,
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(GBoxedFreeFunc)g_free);
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return our_type;
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}
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/*****************************************/
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static VALUE
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rg_s_from_pixbuf(G_GNUC_UNUSED VALUE self, VALUE pixbuf, VALUE use_rle)
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{
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GdkPixdata pixdata;
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gpointer rle_data = gdk_pixdata_from_pixbuf(&pixdata, RVAL2GDKPIXBUF(pixbuf), RVAL2CBOOL(use_rle));
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VALUE ret = GDKPIXDATA2RVAL(&pixdata);
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if (use_rle){
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/* need to manage the returned value */
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rb_ivar_set(ret, id_pixdata, Data_Wrap_Struct(rb_cData, NULL, g_free, rle_data));
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}
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return ret;
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}
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static VALUE
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rg_to_pixbuf(VALUE self, VALUE copy_pixels)
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{
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GError* error = NULL;
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GdkPixbuf* ret = gdk_pixbuf_from_pixdata(_SELF(self), RVAL2CBOOL(copy_pixels), &error);
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if (error)
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RAISE_GERROR(error);
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return GOBJ2RVAL(ret);
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}
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static VALUE
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rg_serialize(VALUE self)
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{
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guint stream_length;
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guint i;
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guint8* ret = gdk_pixdata_serialize(_SELF(self), &stream_length);
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VALUE ary = rb_ary_new2(stream_length);
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for (i = 0; i < stream_length; i++) {
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rb_ary_push(ary, UINT2NUM(ret[i]));
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}
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return ary;
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}
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static VALUE
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rg_s_deserialize(VALUE self, VALUE rbstream)
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{
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GdkPixdata pixdata;
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long n;
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guint8 *stream = RVAL2GUINT8S(rbstream, n);
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GError *error = NULL;
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/* TODO: Should we really be creating a new array here? As far as I can
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tell, the data is copied. */
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if (!gdk_pixdata_deserialize(&pixdata, n, stream, &error))
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RAISE_GERROR(error);
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/* need to manage the returned value */
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rb_ivar_set(self, id_pixdata, Data_Wrap_Struct(rb_cData, NULL, g_free, stream));
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return GDKPIXDATA2RVAL(&pixdata);
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}
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static VALUE
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rg_to_csource(VALUE self, VALUE name, VALUE dump_type)
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{
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GString* str = gdk_pixdata_to_csource(_SELF(self), RVAL2CSTR(name), FIX2INT(dump_type));
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VALUE ret = CSTR2RVAL(str->str);
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g_string_free(str, TRUE);
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return ret;
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}
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/* GdkPixdata */
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static VALUE
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rg_magic(VALUE self)
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{
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return UINT2NUM(_SELF(self)->magic);
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}
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static VALUE
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rg_length(VALUE self)
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{
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gint32 length = _SELF(self)->length;
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if(length > 0)
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length -= GDK_PIXDATA_HEADER_LENGTH;
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return INT2NUM(length);
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}
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static VALUE
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rg_pixdata_type(VALUE self)
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{
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return UINT2NUM(_SELF(self)->pixdata_type);
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}
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static VALUE
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rg_rowstride(VALUE self)
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{
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return INT2NUM(_SELF(self)->rowstride);
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}
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static VALUE
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rg_width(VALUE self)
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{
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return INT2NUM(_SELF(self)->width);
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}
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static VALUE
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rg_height(VALUE self)
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{
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return INT2NUM(_SELF(self)->height);
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}
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static VALUE
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rg_pixel_data(VALUE self)
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{
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gint i;
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guint8* ret = _SELF(self)->pixel_data;
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gint32 length = _SELF(self)->length - GDK_PIXDATA_HEADER_LENGTH;
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VALUE ary = rb_ary_new2(length);
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for (i = 0; i < length; i++) {
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rb_ary_push(ary, UINT2NUM(ret[i]));
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}
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return ary;
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}
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void
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Init_gdk_pixdata(VALUE mGdk)
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{
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VALUE RG_TARGET_NAMESPACE = G_DEF_CLASS(GDK_TYPE_PIXDATA, "Pixdata", mGdk);
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id_pixdata = rb_intern("pixdata");
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RG_DEF_SMETHOD(from_pixbuf, 2);
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RG_DEF_SMETHOD(deserialize, 1);
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RG_DEF_METHOD(to_pixbuf, 1);
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RG_DEF_METHOD(serialize, 0);
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RG_DEF_METHOD(to_csource, 2);
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RG_DEF_METHOD(magic, 0);
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RG_DEF_METHOD(length, 0);
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RG_DEF_METHOD(pixdata_type, 0);
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RG_DEF_METHOD(rowstride, 0);
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RG_DEF_METHOD(width, 0);
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RG_DEF_METHOD(height, 0);
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RG_DEF_METHOD(pixel_data, 0);
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rb_define_const(RG_TARGET_NAMESPACE, "PIXBUF_MAGIC_NUMBER", INT2NUM(GDK_PIXBUF_MAGIC_NUMBER));
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rb_define_const(RG_TARGET_NAMESPACE, "HEADER_LENGTH", INT2NUM(GDK_PIXDATA_HEADER_LENGTH));
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/* GdkPixdataType */
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rb_define_const(RG_TARGET_NAMESPACE, "COLOR_TYPE_RGB", INT2FIX(GDK_PIXDATA_COLOR_TYPE_RGB));
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rb_define_const(RG_TARGET_NAMESPACE, "COLOR_TYPE_RGBA", INT2FIX(GDK_PIXDATA_COLOR_TYPE_RGBA));
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rb_define_const(RG_TARGET_NAMESPACE, "COLOR_TYPE_MASK", INT2FIX(GDK_PIXDATA_COLOR_TYPE_MASK));
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rb_define_const(RG_TARGET_NAMESPACE, "SAMPLE_WIDTH_8", INT2FIX(GDK_PIXDATA_SAMPLE_WIDTH_8));
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rb_define_const(RG_TARGET_NAMESPACE, "SAMPLE_WIDTH_MASK", INT2FIX(GDK_PIXDATA_SAMPLE_WIDTH_MASK));
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rb_define_const(RG_TARGET_NAMESPACE, "ENCODING_RAW", INT2FIX(GDK_PIXDATA_ENCODING_RAW));
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rb_define_const(RG_TARGET_NAMESPACE, "ENCODING_RLE", INT2FIX(GDK_PIXDATA_ENCODING_RLE));
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rb_define_const(RG_TARGET_NAMESPACE, "ENCODING_MASK", INT2FIX(GDK_PIXDATA_ENCODING_MASK));
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/* GdkPixdataDumpType */
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rb_define_const(RG_TARGET_NAMESPACE, "DUMP_PIXDATA_STREAM", INT2FIX(GDK_PIXDATA_DUMP_PIXDATA_STREAM));
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rb_define_const(RG_TARGET_NAMESPACE, "DUMP_PIXDATA_STRUCT", INT2FIX(GDK_PIXDATA_DUMP_PIXDATA_STRUCT));
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rb_define_const(RG_TARGET_NAMESPACE, "DUMP_MACROS", INT2FIX(GDK_PIXDATA_DUMP_MACROS));
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rb_define_const(RG_TARGET_NAMESPACE, "DUMP_GTYPES", INT2FIX(GDK_PIXDATA_DUMP_GTYPES));
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rb_define_const(RG_TARGET_NAMESPACE, "DUMP_CTYPES", INT2FIX(GDK_PIXDATA_DUMP_CTYPES));
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rb_define_const(RG_TARGET_NAMESPACE, "DUMP_STATIC", INT2FIX(GDK_PIXDATA_DUMP_STATIC));
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rb_define_const(RG_TARGET_NAMESPACE, "DUMP_CONST", INT2FIX(GDK_PIXDATA_DUMP_CONST));
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rb_define_const(RG_TARGET_NAMESPACE, "DUMP_RLE_DECODER", INT2FIX(GDK_PIXDATA_DUMP_RLE_DECODER));
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}
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