Diff: picojpeg/picojpeg.h

Revision:

6:8cc48b05d20e

Parent:

5:c4c66c630011

--- a/picojpeg/picojpeg.h	Fri Dec 14 15:40:21 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,102 +0,0 @@
-//------------------------------------------------------------------------------
-// picojpeg v1.0 - Public domain, Rich Geldreich <richgel99@gmail.com>
-//------------------------------------------------------------------------------
-#ifndef PICOJPEG_H
-#define PICOJPEG_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-// Error codes
-enum
-{
-   PJPG_NO_MORE_BLOCKS = 1,
-   PJPG_BAD_DHT_COUNTS,
-   PJPG_BAD_DHT_INDEX,
-   PJPG_BAD_DHT_MARKER,
-   PJPG_BAD_DQT_MARKER,
-   PJPG_BAD_DQT_TABLE,
-   PJPG_BAD_PRECISION,
-   PJPG_BAD_HEIGHT,
-   PJPG_BAD_WIDTH,
-   PJPG_TOO_MANY_COMPONENTS,
-   PJPG_BAD_SOF_LENGTH,
-   PJPG_BAD_VARIABLE_MARKER,
-   PJPG_BAD_DRI_LENGTH,
-   PJPG_BAD_SOS_LENGTH,
-   PJPG_BAD_SOS_COMP_ID,
-   PJPG_W_EXTRA_BYTES_BEFORE_MARKER,
-   PJPG_NO_ARITHMITIC_SUPPORT,
-   PJPG_UNEXPECTED_MARKER,
-   PJPG_NOT_JPEG,
-   PJPG_UNSUPPORTED_MARKER,
-   PJPG_BAD_DQT_LENGTH,
-   PJPG_TOO_MANY_BLOCKS,
-   PJPG_UNDEFINED_QUANT_TABLE,
-   PJPG_UNDEFINED_HUFF_TABLE,
-   PJPG_NOT_SINGLE_SCAN,
-   PJPG_UNSUPPORTED_COLORSPACE,
-   PJPG_UNSUPPORTED_SAMP_FACTORS,
-   PJPG_DECODE_ERROR,
-   PJPG_BAD_RESTART_MARKER,
-   PJPG_ASSERTION_ERROR,
-   PJPG_BAD_SOS_SPECTRAL,
-   PJPG_BAD_SOS_SUCCESSIVE,
-   PJPG_STREAM_READ_ERROR,
-   PJPG_NOTENOUGHMEM,
-   PJPG_UNSUPPORTED_COMP_IDENT,
-   PJPG_UNSUPPORTED_QUANT_TABLE,
-   PJPG_UNSUPPORTED_MODE,
-};  
-
-// Scan types - currently only GRAYSCALE, YH1V1, and YH2V2 are actually supported.
-typedef enum
-{
-   PJPG_GRAYSCALE,
-   PJPG_YH1V1,
-   PJPG_YH2V1,
-   PJPG_YH1V2,
-   PJPG_YH2V2
-} pjpeg_scan_type_t;
-
-typedef struct
-{
-   // Image resolution
-   int m_width;
-   int m_height;
-   // Number of components (1 or 3)
-   int m_comps;
-   // Total number of minimum coded units (MCU's) per row/col.
-   int m_MCUSPerRow;
-   int m_MCUSPerCol;
-   // Scan type
-   pjpeg_scan_type_t m_scanType;
-   // MCU width/height in pixels
-   int m_MCUWidth;
-   int m_MCUHeight;
-   // Pointers to internal MCU pixel component buffers. 
-   // These buffers Will be filled with pixels each time pjpegDecodeMCU() is called successfully.
-   // Each MCU consists of (m_MCUWidth/8)*(m_MCUHeight/8) blocks (currently either 1 for greyscale/no subsampling, or 4 for H2V2 sampling factors), where each block is a contiguous array of 64 (8x8) bytes.
-   // For greyscale images, only the values in m_pMCUBufR are valid.
-   unsigned char *m_pMCUBufR;
-   unsigned char *m_pMCUBufG;
-   unsigned char *m_pMCUBufB;
-} pjpeg_image_info_t;
-
-typedef unsigned char (*pjpeg_need_bytes_callback_t)(unsigned char* pBuf, unsigned char buf_size, unsigned char *pBytes_actually_read, void *pCallback_data);
-
-// Initializes the decompressor. Returns 0 on success, or one of the above error codes on failure.
-// pNeed_bytes_callback will be called to fill the decompressor's internal input buffer.
-// Not thread safe.
-unsigned char pjpeg_decode_init(pjpeg_image_info_t *pInfo, pjpeg_need_bytes_callback_t pNeed_bytes_callback, void *pCallback_data);
-
-// Decompresses the file's next MCU. Returns 0 on success, PJPG_NO_MORE_BLOCKS if no more blocks are available, or an error code.
-// Must be called a total of m_MCUSPerRow*m_MCUSPerCol times to completely decompress the image.
-unsigned char pjpeg_decode_mcu(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // PICOJPEG_H