GrafX2: Test, Load and Save functions

The Test, Load and Save function for each supported file formats are referenced in File_formats. More...

Collaboration diagram for Test, Load and Save functions:

Modules
	Amstrad CPC/CPC+ picture formats
	Support for Amstrad CPC/CPC+ picture formats.

	Bitmap and icon files
	.BMP/.ICO/.CUR files from OS/2 or Windows

	SCx format
	ColoRix VGA Paint SCx File Format.

	GIF format
	Graphics Interchange Format.

	Interchange File Format
	Interchange File Format (Electronic Arts)

	MSX picture formats
	MODE2 : 256x192 Support for the MSX pictures.

	PNG format
	Portable Network Graphics.

	Atari ST picture formats
	Support for Atari ST picture formats.

	TIFF
	Tagged Image File Format.

Functions
void	Test_PKM (T_IO_Context , FILE )

void	Load_PKM (T_IO_Context *)

void	Save_PKM (T_IO_Context *)

void	Test_LBM (T_IO_Context , FILE )

void	Test_PBM (T_IO_Context , FILE )

void	Test_ACBM (T_IO_Context , FILE )

void	Load_IFF (T_IO_Context *)
	Load IFF picture (PBM/ILBM/ACBM) or animation. More...

void	Save_IFF (T_IO_Context *)
	Save IFF file (LBM or PBM) More...

void	Test_GIF (T_IO_Context , FILE )
	Test if a file is GIF format. More...

void	Load_GIF (T_IO_Context *)
	Load GIF file. More...

void	Save_GIF (T_IO_Context *)
	Save a GIF file. More...

void	Test_PCX (T_IO_Context , FILE )

void	Load_PCX (T_IO_Context *)

void	Save_PCX (T_IO_Context *)

void	Test_BMP (T_IO_Context , FILE )
	Test for BMP format. More...

void	Load_BMP (T_IO_Context *)
	Load BMP file. More...

void	Save_BMP (T_IO_Context *)
	Save BMP file. More...

void	Test_IMG (T_IO_Context , FILE )

void	Load_IMG (T_IO_Context *)

void	Save_IMG (T_IO_Context *)

void	Test_SCx (T_IO_Context , FILE )
	Test if a file is SCx format. More...

void	Load_SCx (T_IO_Context *)
	Read a SCx file. More...

void	Save_SCx (T_IO_Context *)
	Save a SCx file. More...

void	Test_CEL (T_IO_Context , FILE )

void	Load_CEL (T_IO_Context *)

void	Save_CEL (T_IO_Context *)

void	Test_KCF (T_IO_Context , FILE )

void	Load_KCF (T_IO_Context *)

void	Save_KCF (T_IO_Context *)

void	Test_PAL (T_IO_Context , FILE )

void	Load_PAL (T_IO_Context *)

void	Save_PAL (T_IO_Context *)

void	Test_GPL (T_IO_Context , FILE )
	Test for GPL (Gimp Palette) file format. More...

void	Load_GPL (T_IO_Context *)
	Load GPL (Gimp Palette) file format. More...

void	Save_GPL (T_IO_Context *)
	Save GPL (Gimp Palette) file format. More...

void	Test_PI1 (T_IO_Context , FILE )
	Test for Degas file format. More...

void	Load_PI1 (T_IO_Context *)
	Load Degas file format. More...

void	Save_PI1 (T_IO_Context *)
	Save a PI1 Degas uncompressed picture. More...

void	Test_PC1 (T_IO_Context , FILE )
	Test for Degas Elite Compressed format. More...

void	Load_PC1 (T_IO_Context *)
	Load Degas Elite compressed files. More...

void	Save_PC1 (T_IO_Context *)
	Save a Degas Elite compressed picture. More...

void	Test_CA1 (T_IO_Context , FILE )
	test for CrackArt format. More...

void	Load_CA1 (T_IO_Context *)

void	Save_CA1 (T_IO_Context *)
	Save a 320x200 16c picture in CrackArt format. More...

void	Test_TNY (T_IO_Context , FILE )

void	Load_TNY (T_IO_Context *)

void	Save_TNY (T_IO_Context *)
	Save in Tiny compressed format. More...

void	Test_NEO (T_IO_Context , FILE )
	NeoChrome Format : More...

void	Load_NEO (T_IO_Context *)
	Load Neochrome file format. More...

void	Save_NEO (T_IO_Context *)
	Save in NeoChrome format. More...

void	Test_C64 (T_IO_Context , FILE )
	Test for a C64 picture file. More...

void	Load_C64 (T_IO_Context *)
	Load C64 pictures formats. More...

void	Save_C64 (T_IO_Context *)
	Save C64 picture. More...

void	Test_PRG (T_IO_Context , FILE )
	Test for a C64 auto-load machine language program which could be a picture. More...

void	Load_PRG (T_IO_Context *)
	Load C64 autoload pictures. More...

void	Save_PRG (T_IO_Context *)
	Save autoloading C64 picture. More...

void	Test_GPX (T_IO_Context , FILE )

void	Load_GPX (T_IO_Context *)

void	Test_SCR (T_IO_Context , FILE )
	Test for SCR file (Amstrad CPC) More...

void	Load_SCR (T_IO_Context *)
	Load Advanced OCP Art Studio files (Amstrad CPC) More...

void	Save_SCR (T_IO_Context *)
	Save Amstrad SCR file. More...

void	Test_CM5 (T_IO_Context , FILE )
	Test for CM5 - Amstrad CPC "Mode 5" picture. More...

void	Load_CM5 (T_IO_Context *)
	Load Amstrad CPC "Mode 5" picture. More...

void	Save_CM5 (T_IO_Context *)
	Save a CPC Mode 5 picture. More...

void	Test_PPH (T_IO_Context , FILE )
	Amstrad CPC 'PPH' for Perfect Pix. More...

void	Load_PPH (T_IO_Context *)

void	Save_PPH (T_IO_Context *)
	Not yet implemented. More...

void	Test_GOS (T_IO_Context , FILE )
	Test for GO1/GO2/KIT - Amstrad Plus Graphos. More...

void	Load_GOS (T_IO_Context *)
	Load GO1/GO2/KIT - Amstrad CPC Plus Graphos. More...

void	Save_GOS (T_IO_Context *)

void	Test_SGX (T_IO_Context , FILE )
	Test for SGX file (SymbOS) More...

void	Load_SGX (T_IO_Context *)

void	Save_SGX (T_IO_Context *)

void	Save_XPM (T_IO_Context *)

void	Test_ICO (T_IO_Context , FILE )

void	Load_ICO (T_IO_Context *)

void	Save_ICO (T_IO_Context *)

void	Test_PNG (T_IO_Context , FILE )
	Test for PNG format. More...

void	Load_PNG (T_IO_Context *)
	Read PNG format files. More...

void	Save_PNG (T_IO_Context *)
	Save a PNG file. More...

void	Load_PNG_Sub (T_IO_Context context, FILE file, const char *memory_buffer, unsigned long memory_buffer_size)
	Read PNG format file. More...

void	Save_PNG_Sub (T_IO_Context context, FILE file, char *buffer, unsigned long buffer_size)
	Save a PNG to file or memory. More...

void	Test_INFO (T_IO_Context , FILE )

void	Load_INFO (T_IO_Context *)

void	Test_FLI (T_IO_Context , FILE )
	Test for the Autodesk Animator FLI/FLC format. More...

void	Load_FLI (T_IO_Context *)
	Load file in the Autodesk Animator FLI/FLC format. More...

void	Test_MOTO (T_IO_Context , FILE )
	Test for Thomson file. More...

void	Load_MOTO (T_IO_Context *)
	Load a picture for Thomson TO8/TO8D/TO9/TO9+/MO6. More...

void	Save_MOTO (T_IO_Context *)
	Save a picture in MAP or BIN Thomson MO/TO file format. More...

void	Test_HGR (T_IO_Context , FILE )
	Test for an Apple II HGR or DHGR raw file. More...

void	Load_HGR (T_IO_Context *)
	Load HGR (280x192) or DHGR (560x192) Apple II pictures. More...

void	Save_HGR (T_IO_Context *)
	Save HGR (280x192) or DHGR (560x192) Apple II pictures. More...

void	Test_TIFF (T_IO_Context , FILE )
	test for a valid TIFF More...

void	Load_TIFF (T_IO_Context *)
	Load TIFF from file. More...

void	Save_TIFF (T_IO_Context *)
	Save TIFF. More...

void	Load_TIFF_from_memory (T_IO_Context , const void , unsigned long)
	Load TIFF from memory. More...

void	Save_TIFF_to_memory (T_IO_Context , void , unsigned long )
	Save TIFF to memory. More...

void	Test_GRB (T_IO_Context , FILE )
	Test for a HP-48 Grob file. More...

void	Load_GRB (T_IO_Context *)

void	Test_MSX (T_IO_Context , FILE )

void	Load_MSX (T_IO_Context *)
	Load a MSX Screen 2 picture. More...

void	Save_MSX (T_IO_Context *)
	Save MSX .SC2 file. More...

void	Test_2GS (T_IO_Context , FILE )
	Test for an Apple 2 GS picture file. More...

void	Load_2GS (T_IO_Context *)

void	Save_2GS (T_IO_Context *)

Detailed Description

The Test, Load and Save function for each supported file formats are referenced in File_formats.

Function Documentation

◆ Test_PKM()

void Test_PKM	(	T_IO_Context *	context,
		FILE *	file
	)

References File_error, T_PKM_Header::Height, T_PKM_Header::Ident, T_PKM_Header::Jump, T_PKM_Header::Method, T_PKM_Header::Palette, Read_byte(), Read_bytes(), Read_word_le(), T_PKM_Header::Recog1, T_PKM_Header::Recog2, and T_PKM_Header::Width.

◆ Load_PKM()

◆ Save_PKM()

◆ Test_LBM()

void Test_LBM	(	T_IO_Context *	context,
		FILE *	f
	)

References Test_IFF().

◆ Test_PBM()

void Test_PBM	(	T_IO_Context *	context,
		FILE *	f
	)

References Test_IFF().

◆ Test_ACBM()

void Test_ACBM	(	T_IO_Context *	context,
		FILE *	f
	)

References Test_IFF().

◆ Load_IFF()

void Load_IFF ( T_IO_Context * context )

Load IFF picture (PBM/ILBM/ACBM) or animation.

Todo:: DRNG IFF chunk is read, but complex color cycling are not implemented.

◆ Save_IFF()

void Save_IFF ( T_IO_Context * context )

Save IFF file (LBM or PBM)

References T_IO_Context::Background_transparent, T_IFF_Header::BitPlanes, T_IO_Context::Color_cycles, T_IO_Context::Comment, T_IFF_Header::Compression, T_IO_Context::Cycle_range, T_Color_cycle::End, File_error, flags, T_IO_Context::Format, FORMAT_LBM, Get_pixel(), GFX2_DEBUG, GFX2_Log(), T_IFF_Header::Height, T_IO_Context::Height, T_Color_cycle::Inverse, T_IFF_Header::Mask, NULL, Open_file_write(), PackBits_pack_add(), PackBits_pack_flush(), PackBits_pack_init(), T_IFF_Header::Pad1, T_IO_Context::Palette, PIXEL_DOUBLE, PIXEL_QUAD, PIXEL_SIMPLE, PIXEL_TALL, PIXEL_TALL2, PIXEL_TALL3, PIXEL_TRIPLE, PIXEL_WIDE, PIXEL_WIDE2, T_IO_Context::Ratio, Remove_file(), Set_IFF_color(), T_Color_cycle::Speed, T_Color_cycle::Start, T_IFF_Header::Transp_col, T_IO_Context::Transparent_color, T_IFF_Header::Width, T_IO_Context::Width, Write_byte(), Write_bytes(), Write_dword_be(), Write_word_be(), T_IFF_Header::X_aspect, T_IFF_Header::X_org, T_IFF_Header::X_screen, T_IFF_Header::Y_aspect, T_IFF_Header::Y_org, and T_IFF_Header::Y_screen.

◆ Test_GIF()

void Test_GIF	(	T_IO_Context *	context,
		FILE *	file
	)

Test if a file is GIF format.

checks if the signature (6 first bytes) is either GIF87a or GIF89a

References File_error, and Read_bytes().

◆ Load_GIF()

void Load_GIF ( T_IO_Context * context )

Load GIF file.

References T_GIF_LSDB::Aspect, T_GIF_LSDB::Backcol, T_IO_Context::Background_transparent, T_Document::backups, T_Config::Clear_palette, T_IO_Context::Color_cycles, T_IO_Context::Comment, COMMENT_SIZE, Config, Constraint_mode_from_label(), CONTEXT_BRUSH, CONTEXT_MAIN_IMAGE, CONTEXT_PREVIEW, T_GIF_context::current_code, T_Document::current_layer, T_IO_Context::Cycle_range, T_GIF_GCE::Delay_time, DISPOSAL_METHOD_RESTORE_BGCOLOR, T_Color_cycle::End, File_error, File_length_file(), Fill_canvas(), flags, FORMAT_GIF, GFX2_DEBUG, GFX2_ERROR, GFX2_INFO, GFX2_Log(), GFX2_malloc, GIF_get_next_code(), GIF_new_pixel(), T_GIF_LSDB::Height, T_Page::Height, T_Page::Image, T_GIF_IDB::Image_height, T_Page::Image_mode, IMAGE_MODE_ANIMATION, T_GIF_IDB::Image_width, T_GIF_IDB::Indicator, T_GIF_context::interlaced, T_Color_cycle::Inverse, label, T_GIF_context::last_byte, Main, MAX, MIN, T_GIF_context::nb_bits, NULL, Open_file_read(), T_IO_Context::Original_file_directory, T_IO_Context::Original_file_name, Original_screen_X, Original_screen_Y, T_GIF_GCE::Packed_fields, T_List_of_pages::Pages, T_IO_Context::Palette, T_GIF_context::pass, PIXEL_SIMPLE, PIXEL_TALL, PIXEL_TALL3, PIXEL_WIDE, T_Image::Pixels, T_GIF_IDB::Pos_X, T_GIF_context::pos_X, T_GIF_IDB::Pos_Y, T_GIF_context::pos_Y, Pre_load(), Read_byte(), Read_bytes(), Read_word_be(), Read_word_le(), T_GIF_context::remainder_bits, T_GIF_context::remainder_byte, T_GIF_LSDB::Resol, Set_frame_duration(), Set_image_mode(), Set_loading_layer(), T_Color_cycle::Speed, T_Color_cycle::Start, T_GIF_context::stop, T_GIF_GCE::Transparent_color, T_IO_Context::Transparent_color, T_IO_Context::Type, T_GIF_LSDB::Width, and T_Page::Width.

Referenced by Test_Save().

◆ Save_GIF()

void Save_GIF ( T_IO_Context * context )

Save a GIF file.

"Netscape" animation extension :

  0x21       Extension Label
  0xFF       Application Extension Label
  0x0B       Block Size
  "NETSCAPE" Application Identifier (8 bytes)
  "2.0"      Application Authentication Code (3 bytes)
  0x03       Sub-block Data Size
  0xLL       01 to loop
  0xSSSS     (little endian) number of loops, 0 means infinite loop
  0x00 Block terminator

see http://www.vurdalakov.net/misc/gif/netscape-looping-application-extension

GrafX2 extension to store IMAGE_MODES :

  0x21       Extension Label
  0xFF       Application Extension Label
  0x0B       Block Size
  "GFX2MODE" Application Identifier (8 bytes)
  "2.6"      Application Authentication Code (3 bytes)
  0xll       Sub-block Data Size
  string     label
  0x00 Block terminator

See also: Constraint_mode_label()

"CRNG" Color cycing extension :

  0x21       Extension Label
  0xFF       Application Extension Label
  0x0B       Block Size
  "CRNG\0\0\0\0" "CRNG" Application Identifier (8 bytes)
  "1.0"      Application Authentication Code (3 bytes)
  0xll       Sub-block Data Size (6 bytes per color cycle)
  For each color cycle :
    0xRRRR   (big endian) Rate
    0xFFFF   (big endian) Flags
    0xSS     start (lower color index)
    0xEE     end (higher color index)
  0x00       Block terminator

If requested, write a specific extension for storing original file path. This is used by the backup system. The format is :

  0x21       Extension Label
  0xFF       Application Extension Label
  0x0B       Block Size
  "GFX2PATH" "GFX2PATH" Application Identifier (8 bytes)
  "\0\0\0"   Application Authentication Code (3 bytes)
  0xll       Sub-block Data Size : path size (including null)
  "..path.." path (null-terminated)
  0xll       Sub-block Data Size : filename size (including null)
  "..file.." file name (null-terminated)
  0x00       Block terminator

References T_GIF_LSDB::Aspect, T_GIF_LSDB::Backcol, T_IO_Context::Background_transparent, T_Document::backups, T_GIF_GCE::Block_identifier, T_GIF_GCE::Block_size, T_GIF_GCE::Block_terminator, T_IO_Context::Color_cycles, T_IO_Context::Comment, Config, Constraint_mode_label(), CONTEXT_MAIN_IMAGE, T_IO_Context::Cycle_range, gif_alphabet::daughter, T_GIF_GCE::Delay_time, DISPOSAL_METHOD_DO_NOT_DISPOSE, DISPOSAL_METHOD_RESTORE_BGCOLOR, T_Color_cycle::End, File_error, flags, gif_alphabet::free, T_GIF_GCE::Function, Get_frame_duration(), Get_pixel(), GFX2_DEBUG, GFX2_Log(), GFX2_malloc, GIF_empty_buffer(), GIF_INVALID_CODE, GIF_next_pixel(), GIF_set_code(), T_GIF_LSDB::Height, T_IO_Context::Height, T_GIF_IDB::Image_height, T_Page::Image_mode, IMAGE_MODE_ANIMATION, T_GIF_IDB::Image_width, T_GIF_IDB::Indicator, T_Color_cycle::Inverse, label, T_GIF_context::last_byte, Main, gif_alphabet::max, T_GIF_context::nb_bits, T_GIF_IDB::Nb_bits_pixel, T_IO_Context::Nb_layers, NULL, Open_file_write(), T_IO_Context::Original_file_directory, T_IO_Context::Original_file_name, T_GIF_GCE::Packed_fields, T_List_of_pages::Pages, T_IO_Context::Palette, PIXEL_TALL, PIXEL_TALL2, PIXEL_TALL3, PIXEL_WIDE, PIXEL_WIDE2, T_GIF_IDB::Pos_X, T_GIF_context::pos_X, T_GIF_IDB::Pos_Y, T_GIF_context::pos_Y, gif_alphabet::prefix, T_IO_Context::Ratio, T_GIF_context::remainder_bits, T_GIF_context::remainder_byte, Remove_file(), T_GIF_LSDB::Resol, Screen_height, T_Config::Screen_size_in_GIF, Screen_width, Set_saving_layer(), gif_alphabet::sister, T_Color_cycle::Speed, T_Color_cycle::Start, T_GIF_context::stop, gif_alphabet::suffix, T_GIF_GCE::Transparent_color, T_IO_Context::Transparent_color, T_IO_Context::Type, T_GIF_LSDB::Width, T_IO_Context::Width, Write_byte(), Write_bytes(), Write_word_be(), and Write_word_le().

◆ Test_PCX()

◆ Load_PCX()

void Load_PCX ( T_IO_Context * context )

References T_PCX_Header::Bytes_per_plane_line, T_Config::Clear_palette, T_PCX_Header::Compression, Config, T_PCX_Header::Depth, Draw_IFF_line(), Draw_PCX_line(), File_error, File_length_file(), T_PCX_Header::Filler, FORMAT_PCX, GFX2_ERROR, GFX2_Log(), T_IO_Context::Height, T_PCX_Header::Manufacturer, NULL, Open_file_read(), Original_screen_X, Original_screen_Y, T_IO_Context::Palette, T_PCX_Header::Palette_16c, T_PCX_Header::Palette_info, PCX_header, PIXEL_SIMPLE, T_PCX_Header::Plane, Pre_load(), Read_byte(), Read_bytes(), Read_word_le(), T_PCX_Header::Reserved, T_PCX_Header::Screen_X, T_PCX_Header::Screen_Y, Set_CGA_Color(), Set_pixel(), Set_pixel_24b(), T_PCX_Header::Version, T_IO_Context::Width, T_PCX_Header::X_dpi, T_PCX_Header::X_max, T_PCX_Header::X_min, T_PCX_Header::Y_dpi, T_PCX_Header::Y_max, and T_PCX_Header::Y_min.

◆ Save_PCX()

◆ Test_BMP()

void Test_BMP	(	T_IO_Context *	context,
		FILE *	file
	)

Test for BMP format.

References File_error, GFX2_DEBUG, GFX2_Log(), T_BMP_Header::Offset, Read_bytes(), Read_dword_le(), Read_word_le(), T_BMP_Header::Reserved_1, T_BMP_Header::Reserved_2, T_BMP_Header::Signature, T_BMP_Header::Size_1, and T_BMP_Header::Size_2.

◆ Load_BMP()

◆ Save_BMP()

◆ Test_IMG()

void Test_IMG	(	T_IO_Context *	context,
		FILE *	file
	)

References File_error, T_IMG_Header::Filler1, T_IMG_Header::Filler2, T_IMG_Header::Height, T_IMG_Header::Palette, Read_bytes(), Read_word_le(), and T_IMG_Header::Width.

◆ Load_IMG()

void Load_IMG ( T_IO_Context * context )

References File_error, File_length_file(), T_IMG_Header::Filler1, T_IMG_Header::Filler2, FORMAT_IMG, T_IO_Context::Height, T_IMG_Header::Height, NULL, Open_file_read(), T_IO_Context::Palette, T_IMG_Header::Palette, PIXEL_SIMPLE, Pre_load(), Read_bytes(), Read_word_le(), Set_pixel(), T_IO_Context::Width, and T_IMG_Header::Width.

◆ Save_IMG()

void Save_IMG ( T_IO_Context * context )

References File_error, T_IMG_Header::Filler1, T_IMG_Header::Filler2, Get_pixel(), T_IO_Context::Height, T_IMG_Header::Height, NULL, Open_file_write(), T_IO_Context::Palette, T_IMG_Header::Palette, Remove_file(), T_IO_Context::Width, T_IMG_Header::Width, Write_bytes(), Write_one_byte, and Write_word_le().

◆ Test_SCx()

void Test_SCx	(	T_IO_Context *	context,
		FILE *	file
	)

Test if a file is SCx format.

References File_error, T_SCx_Header::Filler1, T_SCx_Header::Height, T_SCx_Header::PaletteType, Read_byte(), Read_bytes(), Read_word_le(), T_SCx_Header::StorageType, and T_SCx_Header::Width.

◆ Load_SCx()

void Load_SCx ( T_IO_Context * context )

◆ Save_SCx()

void Save_SCx ( T_IO_Context * context )

◆ Test_CEL()

void Test_CEL	(	T_IO_Context *	context,
		FILE *	file
	)

References File_error, File_length_file(), T_CEL_Header2::Filler1, T_CEL_Header2::Filler2, T_CEL_Header1::Height, T_CEL_Header2::Height, T_CEL_Header2::Kind, T_CEL_Header2::Nb_bits, Read_byte(), Read_bytes(), Read_word_le(), T_CEL_Header2::Signature, T_CEL_Header1::Width, T_CEL_Header2::Width, T_CEL_Header2::X_offset, and T_CEL_Header2::Y_offset.

◆ Load_CEL()

◆ Save_CEL()

◆ Test_KCF()

void Test_KCF	(	T_IO_Context *	context,
		FILE *	file
	)

References T_KCF_Header::Byte1, T_KCF_Header::Byte2, T_KCF_Header::color, File_error, File_length_file(), T_CEL_Header2::Filler1, T_CEL_Header2::Filler2, T_CEL_Header2::Height, T_CEL_Header2::Kind, T_CEL_Header2::Nb_bits, T_KCF_Header::Palette, Read_byte(), Read_bytes(), Read_word_le(), T_CEL_Header2::Signature, T_CEL_Header2::Width, T_CEL_Header2::X_offset, and T_CEL_Header2::Y_offset.

◆ Load_KCF()

◆ Save_KCF()

◆ Test_PAL()

void Test_PAL	(	T_IO_Context *	context,
		FILE *	file
	)

References File_error, File_length_file(), and Read_bytes().

◆ Load_PAL()

void Load_PAL ( T_IO_Context * context )

References File_error, File_length_file(), Open_file_read(), T_IO_Context::Palette, Palette_64_to_256(), Read_bytes(), and Read_word_le().

◆ Save_PAL()

void Save_PAL ( T_IO_Context * context )

References File_error, NULL, Open_file_write(), T_IO_Context::Palette, and Remove_file().

◆ Test_GPL()

void Test_GPL	(	T_IO_Context *	context,
		FILE *	file
	)

Test for GPL (Gimp Palette) file format.

References File_error, File_length_file(), and Read_bytes().

◆ Load_GPL()

void Load_GPL ( T_IO_Context * context )

Load GPL (Gimp Palette) file format.

Todo:: set grafx2 columns setting to match.

Todo:: analyze color names to build shade table

References T_IO_Context::Comment, File_error, GFX2_DEBUG, GFX2_Log(), NULL, Open_file_read(), T_IO_Context::Palette, Read_byte_line(), and skip_padding().

◆ Save_GPL()

void Save_GPL ( T_IO_Context * context )

Save GPL (Gimp Palette) file format.

References File_error, T_IO_Context::File_name, NULL, Open_file_write(), T_IO_Context::Palette, and Remove_file().

◆ Test_PI1()

void Test_PI1	(	T_IO_Context *	context,
		FILE *	file
	)

Test for Degas file format.

References File_error, File_length_file(), and Read_word_be().

◆ Load_PI1()

void Load_PI1 ( T_IO_Context * context )

Load Degas file format.

References T_Config::Clear_palette, Config, File_error, File_length_file(), FORMAT_PI1, GFX2_DEBUG, GFX2_Log(), NULL, Open_file_read(), T_IO_Context::Palette, PI1_8b_to_16p(), PI1_decode_palette(), PI1_load_ranges(), PI2_4b_to_16p(), PI4_16b_to_16p(), PIXEL_SIMPLE, PIXEL_TALL, PIXEL_WIDE, Pre_load(), Read_bytes(), Read_word_be(), and Set_pixel().

◆ Save_PI1()

void Save_PI1 ( T_IO_Context * context )

Save a PI1 Degas uncompressed picture.

Todo:: Support medium and high resolution

References T_IO_Context::Color_cycles, File_error, Get_pixel(), GFX2_malloc, NULL, Open_file_write(), T_IO_Context::Palette, PI1_16p_to_8b(), PI1_code_palette(), PI1_save_ranges(), Remove_file(), and Write_bytes().

◆ Test_PC1()

void Test_PC1	(	T_IO_Context *	context,
		FILE *	file
	)

Test for Degas Elite Compressed format.

References File_error, File_length_file(), and Read_word_be().

◆ Load_PC1()

void Load_PC1 ( T_IO_Context * context )

Load Degas Elite compressed files.

References T_Config::Clear_palette, Config, File_error, File_length_file(), FORMAT_PC1, GFX2_DEBUG, GFX2_INFO, GFX2_Log(), GFX2_malloc, NULL, Open_file_read(), PackBits_unpack_from_file(), PACKBITS_UNPACK_OK, T_IO_Context::Palette, PC1_4bp_to_1line(), PI1_decode_palette(), PI1_load_ranges(), PIXEL_SIMPLE, PIXEL_TALL, Pre_load(), Read_bytes(), Read_word_be(), and Set_pixel().

◆ Save_PC1()

void Save_PC1 ( T_IO_Context * context )

Save a Degas Elite compressed picture.

Todo:: support medium and high resolution

References File_error, Get_pixel(), GFX2_malloc, NULL, Open_file_write(), PackBits_pack_buffer(), T_IO_Context::Palette, PC1_1line_to_4bp(), PI1_code_palette(), PI1_save_ranges(), Remove_file(), Write_bytes(), and Write_word_be().

◆ Test_CA1()

void Test_CA1	(	T_IO_Context *	context,
		FILE *	file
	)

test for CrackArt format.

Test that the files starts with the "CA" signature, then 1 byte for the compressed flag (0 or 1), then 1 byte for the resolution (0=low, 1=med, 2=high)

References File_error, and Read_bytes().

◆ Load_CA1()

void Load_CA1 ( T_IO_Context * context )

◆ Save_CA1()

void Save_CA1 ( T_IO_Context * context )

Save a 320x200 16c picture in CrackArt format.

See also: http://www.atari-wiki.com/index.php/CrackArt_file_format

Todo:: support medium and high resolution

References File_error, Get_pixel(), GFX2_DEBUG, GFX2_Log(), GFX2_malloc, NULL, Open_file_write(), T_IO_Context::Palette, PI1_16p_to_8b(), PI1_code_palette(), Write_byte(), Write_bytes(), and Write_word_be().

◆ Test_TNY()

void Test_TNY	(	T_IO_Context *	context,
		FILE *	file
	)

References File_error, File_length_file(), GFX2_DEBUG, GFX2_Log(), Read_byte(), and Read_word_be().

◆ Load_TNY()

void Load_TNY ( T_IO_Context * context )

Tiny stuff packs the ST RAM in 4 planes of 8000 bytes Data is organized by column in each plane Warning : this is the same organization for all 3 ST Video modes

References T_Config::Clear_palette, T_IO_Context::Color_cycles, Config, T_IO_Context::Cycle_range, T_Color_cycle::End, File_error, File_length_file(), FORMAT_TNY, GFX2_DEBUG, GFX2_Log(), GFX2_malloc, T_Color_cycle::Inverse, NULL, Open_file_read(), T_IO_Context::Palette, PI1_8b_to_16p(), PI1_decode_palette(), PI2_4b_to_16p(), PIXEL_SIMPLE, PIXEL_TALL, Pre_load(), Read_byte(), Read_bytes(), Read_word_be(), Set_pixel(), T_Color_cycle::Speed, and T_Color_cycle::Start.

◆ Save_TNY()

void Save_TNY ( T_IO_Context * context )

Save in Tiny compressed format.

Todo:: support medium and high resolution

fill the buffer with the special Tiny Stuff organization

See also: Load_TNY

References File_error, NULL, Open_file_write(), T_IO_Context::Palette, PI1_16p_to_8b(), PI1_code_palette(), T_IO_Context::Pitch, Remove_file(), T_IO_Context::Target_address, WORDS_EQU, Write_byte(), Write_bytes(), and Write_word_be().

◆ Test_NEO()

void Test_NEO	(	T_IO_Context *	context,
		FILE *	file
	)

NeoChrome Format :

1 word          flag word [always 0]
1 word          resolution [0 = low res, 1 = medium res, 2 = high res]
16 words        palette
12 bytes        filename [usually "        .   "]
1 word          color animation limits.  High bit (bit 15) set if color
                animation data is valid.  Low byte contains color animation
                limits (4 most significant bits are left/lower limit,
                4 least significant bits are right/upper limit).
1 word          color animation speed and direction.  High bit (bit 15) set
                if animation is on.  Low order byte is # vblanks per step.
                If negative, scroll is left (decreasing).  Number of vblanks
                between cycles is |x| - 1
1 word          # of color steps (as defined in previous word) to display
                picture before going to the next.  (For use in slide shows)
1 word          image X offset [unused, always 0]
1 word          image Y offset [unused, always 0]
1 word          image width [unused, always 320]
1 word          image height [unused, always 200]
33 words        reserved for future expansion
32000 bytes     pixel data

Dali *.SD0 (ST low resolution) .SD1 (ST medium resolution) .SD2 (ST high resolution)

Files do not seem to have any resolution or bit plane info stored in them. The file extension seems to be the only way to determine the contents.

1 long file id? [always 0] 16 words palette 92 bytes reserved? [usually 0]

References File_error, File_length_file(), and Read_word_be().

◆ Load_NEO()

void Load_NEO ( T_IO_Context * context )

◆ Save_NEO()

void Save_NEO ( T_IO_Context * context )

Save in NeoChrome format.

Todo:: support medium and high resolution

References T_IO_Context::Color_cycles, T_IO_Context::Cycle_range, T_Color_cycle::End, File_error, T_IO_Context::File_name, Get_pixel(), T_Color_cycle::Inverse, NULL, Open_file_write(), T_IO_Context::Palette, PI1_16p_to_8b(), PI1_code_palette(), Remove_file(), T_Color_cycle::Speed, T_Color_cycle::Start, Write_byte(), Write_bytes(), and Write_word_be().

◆ Test_C64()

void Test_C64	(	T_IO_Context *	context,
		FILE *	file
	)

Test for a C64 picture file.

Checks the file size and the load address

References :

References C64_unpack_doodle(), File_error, File_length_file(), GFX2_DEBUG, GFX2_Log(), GFX2_malloc, NULL, Read_bytes(), and Read_word_le().

◆ Load_C64()

void Load_C64 ( T_IO_Context * context )

Load C64 pictures formats.

Supports:

Hires (with or without ScreenRAM)
Multicolor (Koala or CDU-paint format)
FLI

see http://unusedino.de/ec64/technical/formats/bitmap.html

Parameters

context the IO context

References c64_format_names, C64_set_palette(), C64_unpack_amica(), C64_unpack_doodle(), C64_unpack_draz(), T_Config::Clear_palette, T_IO_Context::Comment, COMMENT_SIZE, Config, F_bitmap, F_fli, F_hires, F_invalid, F_multi, File_error, File_length_file(), FORMAT_C64, GFX2_malloc, IMAGE_MODE_C64FLI, IMAGE_MODE_C64HIRES, IMAGE_MODE_C64MULTI, Load_C64_fli(), Load_C64_hires(), Load_C64_multi(), NULL, Open_file_read(), T_IO_Context::Palette, PIXEL_SIMPLE, PIXEL_WIDE, Pre_load(), T_IO_Context::Ratio, Read_bytes(), Set_image_mode(), and T_IO_Context::Transparent_color.

Referenced by Test_C64_Formats().

◆ Save_C64()

void Save_C64 ( T_IO_Context * context )

Save C64 picture.

Supports :

HiRes (320x200)
Multicolor
FLI

Parameters

context the IO context

References F_bitmap, F_fli, F_hires, F_invalid, F_multi, File_error, T_IO_Context::File_name, GFX2_DEBUG, GFX2_Log(), T_IO_Context::Height, T_IO_Context::Nb_layers, Save_C64_fli(), Save_C64_fli_monolayer(), Save_C64_hires(), Save_C64_multi(), Save_C64_window(), Set_saving_layer(), Warning_message(), and T_IO_Context::Width.

◆ Test_PRG()

void Test_PRG	(	T_IO_Context *	context,
		FILE *	file
	)

Test for a C64 auto-load machine language program which could be a picture.

References C64_isBinaryProgram(), File_error, File_length_file(), and Read_word_le().

◆ Load_PRG()

void Load_PRG ( T_IO_Context * context )

Load C64 autoload pictures.

Parameters

context the IO context

References c64state::backgrounds, c64state::bitmap, C64_isBinaryProgram(), C64_LoadPrg(), C64_set_palette(), C64_VICMODE_FLI, C64_VICMODE_MULTI, T_Config::Clear_palette, Config, F_fli, F_hires, F_invalid, F_multi, File_error, File_length_file(), FORMAT_PRG, IMAGE_MODE_C64FLI, IMAGE_MODE_C64HIRES, IMAGE_MODE_C64MULTI, Load_C64_fli(), Load_C64_hires(), Load_C64_multi(), NULL, Open_file_read(), T_IO_Context::Palette, PIXEL_SIMPLE, PIXEL_WIDE, Pre_load(), c64state::ram, T_IO_Context::Ratio, Read_word_le(), c64state::screen, Set_image_mode(), T_IO_Context::Transparent_color, and c64state::vicmode.

◆ Save_PRG()

void Save_PRG ( T_IO_Context * context )

Save autoloading C64 picture.

Todo:: handle more modes than multicolor

References c64state::bitmap, C64_color_ram_pack(), Encode_C64_hires(), Encode_C64_multicolor(), F_hires, F_invalid, F_multi, File_error, GFX2_DEBUG, GFX2_ERROR, GFX2_Log(), T_IO_Context::Height, NULL, Open_file_write(), PackBits_pack_buffer(), picview_prg, Set_saving_layer(), Warning_message(), T_IO_Context::Width, Write_byte(), and Write_bytes().

◆ Test_GPX()

void Test_GPX	(	T_IO_Context *	context,
		FILE *	file
	)

References File_error, and Read_bytes().

◆ Load_GPX()

void Load_GPX ( T_IO_Context * context )

◆ Test_SCR()

void Test_SCR	(	T_IO_Context *	context,
		FILE *	file
	)

Test for SCR file (Amstrad CPC)

SCR file format is originally from "Advanced OCP Art Studio" : http://www.cpcwiki.eu/index.php/Format:Advanced_OCP_Art_Studio_File_Formats

.WIN "window" format is also supported.

SCR files are normally just a dump of the 16K of video memory. So they are essentially 16 kilobytes of pixel data without any header. To make things more fun, there is an optional compression. This all makes detection a bit fuzzy. However there are various things we can still check:

Presence of a valid PAL file. If the PAL file is not there the pixel data may still be valid. The PAL file size depends on the screen mode (number of colors).
An AMSDOS header is a good indication but in some cases it may not be there.
Some tools embed the palette and mode (and usually some kind of loader code) in the SCR file, we can also detect these.

Todo:: the palette data can be hidden in the 48 "empty" bytes every 2048 bytes of a standard resolution SCR file. So we should detect the hidden Z80 code and load them. Load address of file is C000. Z80 code :
C7D0: 3a d0 d7 cd 1c bd 21 d1 d7 46 48 cd 38 bc af 21 | :.....!..FH.8..!
C7E0: d1 d7 46 48 f5 e5 cd 32 bc e1 f1 23 3c fe 10 20 | ..FH...2...#<..
C7F0: f1 c3 18 bb 00 00 00 00 00 00 00 00 00 00 00 00 | ................
mode and palette :
D7D0: 00 1a 00 0c 03 0b 01 0d 17 10 02 0f 09 19 06 00 | ................
https://gitlab.com/GrafX2/grafX2/merge_requests/121#note_119964168

References sgx_data::context, CPC_check_AMSDOS(), sgx_data::file, File_error, File_length_file(), sgx_data::file_size, GFX2_DEBUG, GFX2_Log(), GFX2_LogHexDump(), mode, NULL, Open_file_read_with_alternate_ext(), Read_byte(), and Read_bytes().

◆ Load_SCR()

void Load_SCR ( T_IO_Context * context )

Load Advanced OCP Art Studio files (Amstrad CPC)

Standard resolution files (Mode 0 160x200, mode 1 320x200 and mode 2 640x200) are supported. The .PAL file is loaded if available. "MJH" RLE packing is supported. Embedded CRTC registers and palette data from various tools is also supported.

.WIN "window" format is also loaded here and allows different picture sizes.

References T_Config::Clear_palette, Close_window(), T_IO_Context::Comment, COMMENT_SIZE, Config, sgx_data::context, CONTEXT_MAIN_IMAGE, CPC_check_AMSDOS(), CPC_Firmware_to_Hardware_color(), CPC_set_HW_palette(), Depack_CPC_LZW(), Display_cursor(), sgx_data::file, File_error, File_length_file(), sgx_data::file_size, FORMAT_SCR, GFX2_DEBUG, GFX2_ERROR, GFX2_INFO, GFX2_is_mem_filled_with(), GFX2_Log(), GFX2_LogHexDump(), GFX2_malloc, GFX2_WARNING, sgx_data::height, INPUT_TYPE_INTEGER, KEY_ESCAPE, KEY_RETURN, LEFT_SIDE, MC_Dark, MC_Light, mode, NULL, Num2str, Open_file_read(), Open_file_read_with_alternate_ext(), Open_window(), T_IO_Context::Palette, PIXEL_SIMPLE, PIXEL_TALL, PIXEL_WIDE, Pre_load(), Print_in_window(), Read_byte(), Read_bytes(), Read_word_le(), Readline(), Set_pixel(), T_IO_Context::Type, Update_window_area, sgx_data::width, Window_attribute2, Window_clicked_button(), Window_dropdown_add_item(), Window_dropdown_clear_items(), Window_height, Window_input_content(), Window_set_dropdown_button(), Window_set_input_button(), Window_set_normal_button(), and Window_width.

◆ Save_SCR()

void Save_SCR ( T_IO_Context * context )

Save Amstrad SCR file.

guess mode from aspect ratio :

normal pixels are mode 1
wide pixels are mode 0
tall pixels are mode 2

Mode and palette are stored in a .PAL file for compatibility with OCP Art studio.

The picture color index should be 0-15, The CPC Hardware palette is expected to be set (indexes 64 to 95)

If the picture is using overscan (more than 16384 bytes) we produce a iMPdraw v2 format autoloading file. see http://orgams.wikidot.com/le-format-impdraw-v2

If the picture is not using overscan (standard resolutions, < 16384 screen buffer) a BASIC loader is saved.

Todo:

Add possibility to set R9 value

Add OCP packing support

References sgx_data::context, CPC_compare_colors(), CPC_is_CPC_old_color(), cpc_scr_simple_loader, CPC_set_HW_palette(), CPC_write_AMSDOS_header(), sgx_data::file, File_error, T_IO_Context::File_name, GFX2_DEBUG, GFX2_Log(), GFX2_WARNING, T_IO_Context::Height, impdraw_loader, NULL, Open_file_write(), Open_file_write_with_alternate_ext(), T_IO_Context::Palette, PIXEL_TALL, PIXEL_TALL2, PIXEL_TALL3, PIXEL_WIDE, PIXEL_WIDE2, T_IO_Context::Ratio, raw2crtc(), T_IO_Context::Width, Write_byte(), and Write_bytes().

◆ Test_CM5()

void Test_CM5	(	T_IO_Context *	context,
		FILE *	file
	)

Test for CM5 - Amstrad CPC "Mode 5" picture.

This is a format designed by SyX. There is one .GFX file in the usual amstrad format and a .CM5 file with the palette, which varies over time.

CM5 file is 2049 bytes, GFX is 18432 bytes.

Todo:: check CM5 contains only valid values [0x40-0x5f]

References sgx_data::context, CPC_check_AMSDOS(), sgx_data::file, File_error, File_length_file(), sgx_data::file_size, NULL, and Open_file_read_with_alternate_ext().

◆ Load_CM5()

void Load_CM5 ( T_IO_Context * context )

Load Amstrad CPC "Mode 5" picture.

Only support 288x256 resolution as the Mode 5 Viewer app only handles this single resolution.

See also: https://www.cpc-power.com/index.php?page=detail&num=12905; https://github.com/cpcsdk/cpctools/blob/master/resources/mode5_viewer/fx_mode5.s

References T_Config::Clear_palette, Config, sgx_data::context, CONTEXT_MAIN_IMAGE, CONTEXT_PREVIEW, CPC_check_AMSDOS(), CPC_set_HW_palette(), sgx_data::file, File_error, First_color_in_palette, FORMAT_CM5, T_IO_Context::Height, IMAGE_MODE_MODE5, NULL, Open_file_read(), Open_file_read_with_alternate_ext(), T_IO_Context::Palette, PIXEL_SIMPLE, Pre_load(), Read_byte(), Set_image_mode(), Set_loading_layer(), Set_pixel(), T_IO_Context::Type, and T_IO_Context::Width.

◆ Save_CM5()

void Save_CM5 ( T_IO_Context * context )

Save a CPC Mode 5 picture.

Resolution is fixed to 288x256. The pictures uses 5 layers. 4 for defining the "inks" the 5th to select one of the 4 inks.

Layer 1 : 1 color Only
Layer 2 and 3 : 1 color/line
Layer 4 : 1 color / 48x1 block
Layer 5 : CPC mode 2 288x256 picture.

The .CM5 file contains the inks from layers 1-4, the .GFX file contains the pixel data in linear fashion

Todo:

Check picture has 5 layers

Check the constraints on the layers

See also: https://www.cpc-power.com/index.php?page=detail&num=12905

References sgx_data::context, sgx_data::file, File_error, Get_pixel(), Open_file_write(), Open_file_write_with_alternate_ext(), Set_saving_layer(), and Write_byte().

◆ Test_PPH()

void Test_PPH	(	T_IO_Context *	context,
		FILE *	file
	)

Amstrad CPC 'PPH' for Perfect Pix.

This is a format designed by Rhino. There are 3 modes:

Mode 'R': 1:1 pixels, 16 colors from the CPC 27 color palette. (this is implemented on CPC as two pictures with wide pixels, the "odd" one being shifted half a pixel to the right), and flipping)
Mode 'B0': wide pixels, up to 126 out of 378 colors. (this is implemented as two pictures with wide pixels, sharing the same 16 color palette, and flipping)
Mode 'B1': 1:1 pixels, 1 fixed color, up to 34 palettes of 9 colors (actually 4 colors + flipping)
The standard CPC formats can also be encapsulated into a PPH file.

See also: http://www.pouet.net/prod.php?which=67770#c766959

References sgx_data::context, sgx_data::file, File_error, File_length_file(), sgx_data::file_size, NULL, Open_file_read_with_alternate_ext(), and Read_bytes().

◆ Load_PPH()

void Load_PPH ( T_IO_Context * context )

◆ Save_PPH()

void Save_PPH ( T_IO_Context * context )

Not yet implemented.

References sgx_data::context.

◆ Test_GOS()

void Test_GOS	(	T_IO_Context *	context,
		FILE *	file
	)

Test for GO1/GO2/KIT - Amstrad Plus Graphos.

This format is made of 3 files .KIT hold the palette in "Kit4096" format. There are 16 colors each stored as 12 bit RGB in RB0G order. .GO1 and GO2 hold each half of the picture (top and bottom) The file always cover the whole display of the Plus (192*272 mode 0 pixels) Only mode 0 is possible.

References sgx_data::context, CPC_check_AMSDOS(), sgx_data::file, File_error, File_length_file(), sgx_data::file_size, NULL, and Open_file_read_with_alternate_ext().

◆ Load_GOS()

void Load_GOS ( T_IO_Context * context )

Load GO1/GO2/KIT - Amstrad CPC Plus Graphos.

References T_Config::Clear_palette, Config, sgx_data::context, CPC_check_AMSDOS(), CPC_set_HW_palette(), sgx_data::file, File_error, File_length_file(), sgx_data::file_size, FORMAT_GOS, GFX2_malloc, NULL, Open_file_read(), Open_file_read_with_alternate_ext(), T_IO_Context::Palette, PIXEL_WIDE, Pre_load(), Read_byte(), Read_bytes(), Read_word_le(), and Set_pixel().

Referenced by Test_Save().

◆ Save_GOS()

void Save_GOS ( T_IO_Context * context )

References sgx_data::context, sgx_data::file, File_error, GFX2_DEBUG, GFX2_Log(), T_IO_Context::Height, NULL, Open_file_write(), Open_file_write_with_alternate_ext(), T_IO_Context::Palette, T_IO_Context::Pitch, raw2crtc(), T_IO_Context::Target_address, T_IO_Context::Width, Write_bytes(), and Write_word_le().

◆ Test_SGX()

void Test_SGX	(	T_IO_Context *	context,
		FILE *	file
	)

Test for SGX file (SymbOS)

http://www.cpcwiki.eu/index.php/Format:SGX_(SymbOS_graphic_files)

References File_error, File_length_file(), and Read_bytes().

◆ Load_SGX()

void Load_SGX ( T_IO_Context * context )

References sgx_data::context, sgx_data::file, File_error, File_length_file(), sgx_data::file_size, FORMAT_SGX, GFX2_DEBUG, GFX2_Log(), sgx_data::height, sgx_data::ncolors, NULL, Open_file_read(), PIXEL_SIMPLE, Pre_load(), Read_SGX(), Set_SGX_Palette(), SGX_Get_dimensions(), SGX_Load_Picture(), and sgx_data::width.

◆ Save_SGX()

void Save_SGX ( T_IO_Context * context )

References sgx_data::context, Current_layer_count_used_colors(), sgx_data::file, File_error, NULL, Open_file_write(), Save_SGX_Sub(), and Warning_message().

◆ Save_XPM()

void Save_XPM ( T_IO_Context * context )

References T_IO_Context::Background_transparent, File_error, Get_pixel(), T_IO_Context::Height, NULL, Open_file_write(), T_IO_Context::Palette, T_IO_Context::Transparent_color, T_IO_Context::Width, and XPM_USABLE_CHARS.

◆ Test_ICO()

void Test_ICO	(	T_IO_Context *	context,
		FILE *	file
	)

References File_error, and Read_word_le().

◆ Load_ICO()

void Load_ICO ( T_IO_Context * context )

◆ Save_ICO()

void Save_ICO ( T_IO_Context * context )

◆ Test_PNG()

void Test_PNG	(	T_IO_Context *	context,
		FILE *	file
	)

Test for PNG format.

The 8 byte signature at the start of file is tested

References File_error, and Read_bytes().

◆ Load_PNG()

void Load_PNG ( T_IO_Context * context )

Read PNG format files.

just read/test the header and call Load_PNG_Sub()

References File_error, Load_PNG_Sub(), NULL, Open_file_read(), and Read_bytes().

◆ Save_PNG()

void Save_PNG ( T_IO_Context * context )

Save a PNG file.

References File_error, NULL, Open_file_write(), Remove_file(), and Save_PNG_Sub().

◆ Load_PNG_Sub()

void Load_PNG_Sub	(	T_IO_Context *	context,
		FILE *	file,
		const char *	memory_buffer,
		unsigned long	memory_buffer_size
	)

◆ Save_PNG_Sub()

void Save_PNG_Sub	(	T_IO_Context *	context,
		FILE *	file,
		char **	buffer,
		unsigned long *	buffer_size
	)

Save a PNG to file or memory.

Parameters

context	the IO context
file	the FILE to write to or NULL to write to memory
buffer	will receive a malloc'ed buffer if writting to memory
buffer_size	will receive the PNG size in memory

References T_IO_Context::Background_transparent, PNG_memory_buffer::buffer, memory_buffer::buffer, T_IO_Context::Color_cycles, T_IO_Context::Comment, T_IO_Context::Cycle_range, T_Color_cycle::End, File_error, flags, T_IO_Context::Height, T_Color_cycle::Inverse, NULL, memory_buffer::offset, T_IO_Context::Palette, T_IO_Context::Pitch, Pixel_ratio, PIXEL_TALL, PIXEL_TALL2, PIXEL_TALL3, PIXEL_WIDE, PIXEL_WIDE2, PNG_HAVE_PLTE, png_jmpbuf, PNG_memory_flush(), PNG_memory_write(), T_Color_cycle::Speed, T_Color_cycle::Start, T_IO_Context::Target_address, T_IO_Context::Transparent_color, and T_IO_Context::Width.

Referenced by Save_ClipBoard_Image(), and Save_PNG().

◆ Test_INFO()

void Test_INFO	(	T_IO_Context *	context,
		FILE *	file
	)

References File_error, T_INFO_Header::Magic, Read_INFO_Header(), and T_INFO_Header::Version.

◆ Load_INFO()

void Load_INFO ( T_IO_Context * context )

References T_IO_Context::Background_transparent, T_Config::Clear_palette, T_IO_Context::Comment, COMMENT_SIZE, Config, CONTEXT_PREVIEW, CONTEXT_PREVIEW_PALETTE, Decode_NewIcons(), T_INFO_Header::DefaultTool, T_INFO_ImageHeader::Depth, Draw_IFF_line(), T_INFO_Header::DrawerData, File_error, File_length_file(), FORMAT_INFO, T_INFO_Header::GadgetRender, GFX2_Log(), GFX2_WARNING, T_INFO_Header::Height, T_INFO_ImageHeader::Height, IMAGE_MODE_ANIMATION, T_INFO_Header::Magic, MIN, NULL, Open_file_read(), T_IO_Context::Palette, PIXEL_SIMPLE, Pre_load(), Read_bytes(), Read_dword_be(), Read_INFO_Header(), Read_INFO_ImageHeader(), Read_INFO_String(), T_INFO_Header::SelectRender, Set_image_mode(), Set_loading_layer(), Set_pixel(), T_INFO_Header::ToolTypes, T_INFO_Header::ToolWindow, T_IO_Context::Transparent_color, T_IO_Context::Type, T_INFO_Header::UserData, T_INFO_Header::Width, and T_INFO_ImageHeader::Width.

◆ Test_FLI()

void Test_FLI	(	T_IO_Context *	context,
		FILE *	file
	)

Test for the Autodesk Animator FLI/FLC format.

Not to be confused with Commodore 64 FLI.

References File_error, Load_FLI_Header(), and T_FLIC_Header::type.

◆ Load_FLI()

void Load_FLI ( T_IO_Context * context )

Load file in the Autodesk Animator FLI/FLC format.

Not to be confused with Commodore 64 FLI.

References T_Document::backups, T_Config::Clear_palette, Config, CONTEXT_MAIN_IMAGE, CONTEXT_PREVIEW, CONTEXT_PREVIEW_PALETTE, T_Document::current_layer, T_FLIC_Header::depth, File_error, File_length_file(), FORMAT_FLI, Get_image_mode(), GFX2_Log(), GFX2_WARNING, T_FLIC_Header::height, T_Page::Height, T_Page::Image, IMAGE_MODE_ANIMATION, Load_FLI_Header(), Main, NULL, Open_file_read(), T_List_of_pages::Pages, T_IO_Context::Palette, PIXEL_SIMPLE, T_Image::Pixels, Pre_load(), Read_byte(), Read_dword_le(), Read_word_le(), Set_frame_duration(), Set_image_mode(), Set_loading_layer(), Set_pixel(), T_FLIC_Header::size, T_FLIC_Header::speed, T_IO_Context::Type, T_FLIC_Header::type, T_FLIC_Header::width, and T_Page::Width.

◆ Test_MOTO()

void Test_MOTO	(	T_IO_Context *	context,
		FILE *	file
	)

Test for Thomson file.

References T_IO_Context::File_directory, File_error, File_exists(), File_length_file(), T_IO_Context::File_name, Filepath_append_to_dir(), MOTO_Check_binary_file(), and NULL.

◆ Load_MOTO()

void Load_MOTO ( T_IO_Context * context )

Load a picture for Thomson TO8/TO8D/TO9/TO9+/MO6.

One of the supported format is the one produced by TGA2Teo :

Picture data is splitted into 2 files, one for each VRAM bank :
- The first VRAM bank is called "forme" (shape). In 40col mode it stores pixels.
- The second VRAM bank is called "couleur" (color). In 40col mode it store color indexes for foreground and background.
File extension is .BIN, character before extension is "P" for the first file, and "C" for the second.
The color palette is stored in both files after the data.

The mode is detected thanks to the number of color in the palette :

2 colors is 80col (640x200)
4 colors is bitmap4 (320x200 4 colors)
16 colors is either bitmap16 (160x200 16colors) or 40col (320x200 16 colors with 2 unique colors in each 8x1 pixels block).

As it is not possible to disriminate bitmap16 and 40col, opening the "P" file sets bitmap16, opening the "C" file sets 40col.

This function also supports .MAP files (with optional TO-SNAP extension) and our own "autoloading" BIN files. See http://pulkomandy.tk/projects/GrafX2/wiki/Develop/FileFormats/MOTO for a detailled description.

References T_Config::Clear_palette, T_IO_Context::Comment, COMMENT_SIZE, Config, T_IO_Context::File_directory, File_error, File_length_file(), T_IO_Context::File_name, Filepath_append_to_dir(), FORMAT_MOTO, GFX2_DEBUG, GFX2_ERROR, GFX2_Log(), GFX2_malloc, IMAGE_MODE_THOMSON, mode, MOTO_Check_binary_file(), MOTO_gamma_correct_MOTO_to_RGB(), MOTO_MODE_40col, MOTO_MODE_80col, MOTO_MODE_bm16, MOTO_MODE_bm4, MOTO_set_MO5_palette(), MOTO_set_TO7_palette(), NULL, Open_file_read(), T_IO_Context::Palette, PIXEL_SIMPLE, PIXEL_TALL, PIXEL_WIDE, Pre_load(), Read_byte(), Read_bytes(), Read_word_be(), Set_image_mode(), and Set_pixel().

◆ Save_MOTO()

void Save_MOTO ( T_IO_Context * context )

Save a picture in MAP or BIN Thomson MO/TO file format.

File format details : http://pulkomandy.tk/projects/GrafX2/wiki/Develop/FileFormats/MOTO

In the future we could support other resolution for .MAP format. And even in .BIN format, we could store less lines.

The 40col encoding algorithm is optimized for further vertical RLE packing. The "attibute" byte is kept as constant as possible between adjacent blocks.

For MO5 we use a different 40col algorithm to make sure the last pixel of a GPL and the first the next are both FORME or both FOND, else we get an ugly glitch on the EFGJ033 Gate Array MO5!

References T_IO_Context::Comment, DECB_BIN_Add_Chunk(), DECB_BIN_Add_End(), File_error, format, Get_pixel(), GFX2_DEBUG, GFX2_ERROR, GFX2_Log(), GFX2_malloc, T_IO_Context::Height, MACHINE_MO5, MACHINE_MO6, MACHINE_TO7, MACHINE_TO770, MACHINE_TO8, mode, MOTO_gamma_correct_RGB_to_MOTO(), MOTO_MAP_pack(), MOTO_MODE_40col, MOTO_MODE_80col, MOTO_MODE_bm16, MOTO_MODE_bm4, NULL, Open_file_write(), T_IO_Context::Palette, Program_version, Save_MOTO_window(), SVN_revision, Warning_message(), Warning_with_format(), and T_IO_Context::Width.

◆ Test_HGR()

void Test_HGR	(	T_IO_Context *	context,
		FILE *	file
	)

Test for an Apple II HGR or DHGR raw file.

References File_error, and File_length_file().

◆ Load_HGR()

void Load_HGR ( T_IO_Context * context )

Load HGR (280x192) or DHGR (560x192) Apple II pictures.

Creates 2 layers :

Monochrome
Color

emulate "chat mauve" DHGR mixed mode. see http://boutillon.free.fr/Underground/Anim_Et_Graph/Extasie_Chat_Mauve_Reloaded/Extasie_Chat_Mauve_Reloaded.html

HGR emulation following the behaviour of a "Le Chat Mauve" RVB adapter for the Apple //c. Within the bit stream, the color of the middle pixel is :
111 \ 110 }- white 011 / 010 \ _ color 101 / 000 \ 001 }- black 100 / Color depends on the selected palette for the current byte and the position of the pixel (odd or even).

References T_Config::Clear_palette, Config, CONTEXT_MAIN_IMAGE, DHGR_set_palette(), File_error, File_length_file(), FORMAT_HGR, GFX2_DEBUG, GFX2_LogHexDump(), GFX2_malloc, HGR_set_palette(), IMAGE_MODE_DHGR, IMAGE_MODE_HGR, NULL, Open_file_read(), T_IO_Context::Palette, PIXEL_SIMPLE, PIXEL_TALL, Pre_load(), Read_bytes(), Set_image_mode(), Set_loading_layer(), Set_pixel(), and T_IO_Context::Type.

◆ Save_HGR()

void Save_HGR ( T_IO_Context * context )

Save HGR (280x192) or DHGR (560x192) Apple II pictures.

The data saved is the "monochrome" data from layer 1

References File_error, Get_pixel(), T_IO_Context::Height, NULL, Open_file_write(), Set_saving_layer(), Warning_message(), T_IO_Context::Width, and Write_bytes().

◆ Test_TIFF()

void Test_TIFF	(	T_IO_Context *	context,
		FILE *	file
	)

test for a valid TIFF

References File_error, and Read_bytes().

◆ Load_TIFF()

void Load_TIFF ( T_IO_Context * context )

Load TIFF from file.

References T_IO_Context::File_directory, File_error, File_length(), File_length_file(), T_IO_Context::File_name, Filepath_append_to_dir(), Load_TIFF_Sub(), NULL, Open_file_read(), and TIFF_Init().

◆ Save_TIFF()

void Save_TIFF ( T_IO_Context * context )

Save TIFF.

References T_IO_Context::File_directory, File_error, T_IO_Context::File_name, T_IO_Context::File_name_unicode, Filepath_append_to_dir(), NULL, Save_TIFF_Sub(), and TIFF_Init().

◆ Load_TIFF_from_memory()

void Load_TIFF_from_memory	(	T_IO_Context *	context,
		const void *	buffer,
		unsigned long	size
	)

Load TIFF from memory.

References memory_buffer::alloc_size, memory_buffer::buffer, Load_TIFF_Sub(), lTIFF_close(), lTIFF_map(), lTIFF_read(), lTIFF_seek(), lTIFF_size(), lTIFF_unmap(), lTIFF_write(), NULL, memory_buffer::offset, memory_buffer::size, and TIFF_Init().

Referenced by Load_ClipBoard_Image().

◆ Save_TIFF_to_memory()

void Save_TIFF_to_memory	(	T_IO_Context *	context,
		void **	buffer,
		unsigned long *	size
	)

Save TIFF to memory.

References memory_buffer::alloc_size, memory_buffer::buffer, lTIFF_close(), lTIFF_map(), lTIFF_read(), lTIFF_seek(), lTIFF_size(), lTIFF_unmap(), lTIFF_write(), NULL, memory_buffer::offset, Save_TIFF_Sub(), memory_buffer::size, and TIFF_Init().

Referenced by Save_ClipBoard_Image().

◆ Test_GRB()

void Test_GRB	(	T_IO_Context *	context,
		FILE *	file
	)

Test for a HP-48 Grob file.

References File_error, File_length_file(), GFX2_DEBUG, GFX2_Log(), Read_bytes(), and Read_HP48Address().

◆ Load_GRB()

void Load_GRB ( T_IO_Context * context )

References T_Config::Clear_palette, Config, File_error, File_length_file(), FORMAT_GRB, GFX2_DEBUG, GFX2_Log(), GFX2_malloc, NULL, Open_file_read(), T_IO_Context::Palette, PIXEL_SIMPLE, Pre_load(), Read_bytes(), Read_HP48Address(), and Set_pixel().

◆ Test_MSX()

void Test_MSX	(	T_IO_Context *	context,
		FILE *	file
	)

References Check_MSX_BSAVE_format(), File_error, GFX2_DEBUG, and GFX2_Log().

◆ Load_MSX()

void Load_MSX ( T_IO_Context * context )

Load a MSX Screen 2 picture.

TMS9918 Mode II VRAM layout :

0000-17FF : Pattern table
1800-1AFF : Name table
1B00-1B7F : Sprite attributes
1B80-1FFF : UNUSED (1B80-1BAF = Palette)
2000-37FF : Color table
3800-3FFF : Sprite patterns

References Check_MSX_BSAVE_format(), T_Config::Clear_palette, Config, File_error, File_length_file(), FORMAT_MSX, GFX2_DEBUG, GFX2_Log(), MSX_set_palette(), Open_file_read(), T_IO_Context::Palette, PIXEL_SIMPLE, Pre_load(), Read_bytes(), Set_loading_layer(), Set_pixel(), and T_IO_Context::Transparent_color.

◆ Save_MSX()

void Save_MSX ( T_IO_Context * context )

Save MSX .SC2 file.

Uses the BSAVE/BLOAD file format. equivalent to BSAVE "FILE.SC2",&H0,&H37FF,S

The MSX pictures are 256x192 pixels with a 15 colors fixed palette. Color #0 is transparent.

See also: https://www.msx.org/wiki/BSAVE; https://lospec.com/palette-list/msx

Todo:: save sprites

References File_error, Get_pixel(), GFX2_Log(), GFX2_WARNING, NULL, Open_file_write(), Write_byte(), Write_bytes(), and Write_word_le().

◆ Test_2GS()

void Test_2GS	(	T_IO_Context *	context,
		FILE *	file
	)

Test for an Apple 2 GS picture file.

References File_error, File_length_file(), Read_bytes(), and Read_dword_le().

◆ Load_2GS()

void Load_2GS ( T_IO_Context * context )

Modules

Functions

Detailed Description

Function Documentation

◆ Test_PKM()

◆ Load_PKM()

◆ Save_PKM()

◆ Test_LBM()

◆ Test_PBM()

◆ Test_ACBM()

◆ Load_IFF()

◆ Save_IFF()

◆ Test_GIF()

◆ Load_GIF()

◆ Save_GIF()

◆ Test_PCX()

◆ Load_PCX()

◆ Save_PCX()

◆ Test_BMP()

◆ Load_BMP()

◆ Save_BMP()

◆ Test_IMG()

◆ Load_IMG()

◆ Save_IMG()

◆ Test_SCx()

◆ Load_SCx()

◆ Save_SCx()

◆ Test_CEL()

◆ Load_CEL()

◆ Save_CEL()

◆ Test_KCF()

◆ Load_KCF()

◆ Save_KCF()

◆ Test_PAL()

◆ Load_PAL()

◆ Save_PAL()

◆ Test_GPL()

◆ Load_GPL()

◆ Save_GPL()

◆ Test_PI1()

◆ Load_PI1()

◆ Save_PI1()

◆ Test_PC1()

◆ Load_PC1()

◆ Save_PC1()

◆ Test_CA1()

◆ Load_CA1()

◆ Save_CA1()

◆ Test_TNY()

◆ Load_TNY()

◆ Save_TNY()

◆ Test_NEO()

◆ Load_NEO()

◆ Save_NEO()

◆ Test_C64()

◆ Load_C64()

◆ Save_C64()

◆ Test_PRG()

◆ Load_PRG()

◆ Save_PRG()

◆ Test_GPX()

◆ Load_GPX()

◆ Test_SCR()

◆ Load_SCR()

◆ Save_SCR()

◆ Test_CM5()

◆ Load_CM5()

◆ Save_CM5()

◆ Test_PPH()

◆ Load_PPH()

◆ Save_PPH()

◆ Test_GOS()

◆ Load_GOS()

◆ Save_GOS()

◆ Test_SGX()

◆ Load_SGX()

◆ Save_SGX()

◆ Save_XPM()

◆ Test_ICO()

◆ Load_ICO()