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src/Source/FreeImage/PluginPCX.cpp  view on Meta::CPAN

					bits[x * 3 + FI_RGBA_RED] = pline[x];						
				}
				pline += header.bytes_per_line;

				for (x = 0; x < width; x++) {
					bits[x * 3 + FI_RGBA_GREEN] = pline[x];
				}
				pline += header.bytes_per_line;

				for (x = 0; x < width; x++) {
					bits[x * 3 + FI_RGBA_BLUE] = pline[x];
				}
				pline += header.bytes_per_line;

				bits -= pitch;
			}
		} else {
			throw FI_MSG_ERROR_UNSUPPORTED_FORMAT;
		}

		free(line);
		free(ReadBuf);

		return dib;

	} catch (const char *text) {
		// free allocated memory

		if (dib != NULL) {
			FreeImage_Unload(dib);
		}
		if (line != NULL) {
			free(line);
		}
		if (ReadBuf != NULL) {
			free(ReadBuf);
		}

		FreeImage_OutputMessageProc(s_format_id, text);
	}
	
	return NULL;
}

// ==========================================================
//   Init
// ==========================================================

/*!
    Initialises the plugin. The first parameter (Plugin *plugin)
	contains a pointer to a pre-allocated Plugin structure
	wherein pointers to the available plugin functions
	has to be stored. The second parameter (int format_id) is an identification
	number that the plugin may use to show plugin specific warning messages
	or other information to the user. The plugin number
	is generated by FreeImage and can differ everytime the plugin is
	initialised.

    If you want to create your own plugin you have to take some
	rules into account. Plugin functions have to be compiled
	__stdcall using the multithreaded c runtime libraries. Throwing
	exceptions in plugin functions is allowed, as long as those exceptions
	are being caught inside the same plugin. It is forbidden for a plugin
	function to directly call FreeImage functions or to allocate memory
	and pass it to the main DLL. Exception to this rule is the special file data
	block that may be allocated the Open function. Allocating a FIBITMAP inside a
	plugin can be using the function allocate_proc in the FreeImage structure,
	which will allocate the memory using the DLL's c runtime library.
*/

void DLL_CALLCONV
InitPCX(Plugin *plugin, int format_id) {
	s_format_id = format_id;

	plugin->format_proc = Format;
	plugin->description_proc = Description;
	plugin->extension_proc = Extension;
	plugin->regexpr_proc = RegExpr;
	plugin->open_proc = NULL;
	plugin->close_proc = NULL;
	plugin->pagecount_proc = NULL;
	plugin->pagecapability_proc = NULL;
	plugin->load_proc = Load;
	plugin->save_proc = NULL;
	plugin->validate_proc = Validate;
	plugin->mime_proc = MimeType;
	plugin->supports_export_bpp_proc = SupportsExportDepth;
	plugin->supports_export_type_proc = SupportsExportType;
	plugin->supports_icc_profiles_proc = NULL;
	plugin->supports_no_pixels_proc = SupportsNoPixels;
}