spi00in.h

/* SPDX-License-Identifier: MIT */
/* Copyright (c) ifwebp developers */

#pragma once

#include <windows.h>
#ifdef __cplusplus
#define EXPORT(hr) extern "C" __declspec(dllexport) hr __stdcall
#else
#define EXPORT(hr) extern __declspec(dllexport) hr __stdcall
#endif

// Image information structure
#pragma pack(push)
#pragma pack(1) // Make structure member boundary 1 byte
typedef struct SusiePictureInfo_ {
	long left, top;   // Position to start decompressing the image
	long width;       // Image width (in pixels)
	long height;      // Image height (in pixels)
	WORD x_density;   // Horizontal density of pixels
	WORD y_density;   // Vertical density of pixels
	short colorDepth; // Number of bits per pixel
	HLOCAL hInfo;     // Text information in the image
} SusiePictureInfo;
#pragma pack(pop)

// Error codes
#define SPI_NO_FUNCTION      -1 // Unimplemented feature
#define SPI_ALL_RIGHT         0 // Success
#define SPI_ABORT             1 // Aborted due to callback returning non-zero
#define SPI_NOT_SUPPORT       2 // Unknown format
#define SPI_OUT_OF_ORDER      3 // Corrupted data
#define SPI_NO_MEMORY         4 // Unable to allocate memory
#define SPI_MEMORY_ERROR      5 // Memory error
#define SPI_FILE_READ_ERROR   6 // File read error
#define SPI_WINDOW_ERROR      7 // Window can not be opened (private error code)
#define SPI_OTHER_ERROR       8 // Internal error
#define SPI_FILE_WRITE_ERROR  9 // Write error (private error code)
#define SPI_END_OF_FILE      10 // End of file (private error code)

// Flags
#define SPI_INPUT_FILE    (0)      // Input is a file
#define SPI_INPUT_MEMORY  (1)      // Input is an image in memory
#define SPI_IGNORE_CASE   (1 << 7) // File name is case insensitive
#define SPI_OUTPUT_FILE   (0)      // Output is a file
#define SPI_OUTPUT_MEMORY (1 << 8) // Output is an image in memory

// Function prototype declarations for '00IN' (Image plugin)
typedef int(CALLBACK *SPI_PROGRESS)(int, int, intptr_t);
EXPORT(int) GetPluginInfo(int info_number, LPSTR buffer, int buffer_length);
EXPORT(int) GetPluginInfoW(int info_number, LPWSTR buffer, int buffer_length);
EXPORT(int) IsSupported(LPCSTR filename, DWORD_PTR variant);
EXPORT(int) IsSupportedW(LPCWSTR filename, DWORD_PTR variant);
EXPORT(int) GetPictureInfo(LPCSTR buffer, size_t buffer_length, unsigned int flag, SusiePictureInfo *picture_info);
EXPORT(int) GetPictureInfoW(LPCWSTR buffer, size_t buffer_length, unsigned int flag, SusiePictureInfo *picture_info);
EXPORT(int) GetPicture(LPCSTR buffer, size_t buffer_length, unsigned int flag, HANDLE *bitmap_info, HANDLE *bitmap_data, SPI_PROGRESS progress_callback, intptr_t user_data);
EXPORT(int) GetPictureW(LPCWSTR buffer, size_t buffer_length, unsigned int flag, HANDLE *bitmap_info, HANDLE *bitmap_data, SPI_PROGRESS progress_callback, intptr_t user_data);
EXPORT(int) GetPreview(LPCSTR buffer, size_t buffer_length, unsigned int flag, HANDLE *bitmap_info, HANDLE *bitmap_data, SPI_PROGRESS lpPrgressCallback, intptr_t user_data);
EXPORT(int) GetPreviewW(LPCWSTR buffer, size_t buffer_length, unsigned int flag, HANDLE *bitmap_info, HANDLE *bitmap_data, SPI_PROGRESS lpPrgressCallback, intptr_t user_data);