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cellGifDec Module Added
*Implemented 'cellGifDec', using 'sys_fs' to access the files and the 'stb_image' (stblib) library to decode GIF buffers to Raw-pixel buffers that can be used as textures. *Replace 'lodepng' and 'jpeg-compressor' libraries with 'stb_image' in cellPngDec and cellJpgDec, respectively. *Fixed minor issues in cellPngDec and cellJpgDec.
This commit is contained in:
Alexandro Sánchez Bach
parent
0275b430cf
commit
aea7f4aa77
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Load Diff
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// jpgd.h - C++ class for JPEG decompression.
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// Public domain, Rich Geldreich <richgel99@gmail.com>
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#ifndef JPEG_DECODER_H
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#define JPEG_DECODER_H
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#include <stdlib.h>
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#include <stdio.h>
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#include <setjmp.h>
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#ifdef _MSC_VER
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#define JPGD_NORETURN __declspec(noreturn)
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#elif defined(__GNUC__)
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#define JPGD_NORETURN __attribute__ ((noreturn))
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#else
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#define JPGD_NORETURN
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#endif
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namespace jpgd
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{
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typedef unsigned char uint8;
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typedef signed short int16;
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typedef unsigned short uint16;
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typedef unsigned int uint;
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typedef signed int int32;
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// Loads a JPEG image from a memory buffer or a file.
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// req_comps can be 1 (grayscale), 3 (RGB), or 4 (RGBA).
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// On return, width/height will be set to the image's dimensions, and actual_comps will be set to the either 1 (grayscale) or 3 (RGB).
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// Notes: For more control over where and how the source data is read, see the decompress_jpeg_image_from_stream() function below, or call the jpeg_decoder class directly.
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// Requesting a 8 or 32bpp image is currently a little faster than 24bpp because the jpeg_decoder class itself currently always unpacks to either 8 or 32bpp.
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unsigned char *decompress_jpeg_image_from_memory(const unsigned char *pSrc_data, int src_data_size, int *width, int *height, int *actual_comps, int req_comps);
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unsigned char *decompress_jpeg_image_from_file(const char *pSrc_filename, int *width, int *height, int *actual_comps, int req_comps);
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// Success/failure error codes.
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enum jpgd_status
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{
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JPGD_SUCCESS = 0, JPGD_FAILED = -1, JPGD_DONE = 1,
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JPGD_BAD_DHT_COUNTS = -256, JPGD_BAD_DHT_INDEX, JPGD_BAD_DHT_MARKER, JPGD_BAD_DQT_MARKER, JPGD_BAD_DQT_TABLE,
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JPGD_BAD_PRECISION, JPGD_BAD_HEIGHT, JPGD_BAD_WIDTH, JPGD_TOO_MANY_COMPONENTS,
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JPGD_BAD_SOF_LENGTH, JPGD_BAD_VARIABLE_MARKER, JPGD_BAD_DRI_LENGTH, JPGD_BAD_SOS_LENGTH,
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JPGD_BAD_SOS_COMP_ID, JPGD_W_EXTRA_BYTES_BEFORE_MARKER, JPGD_NO_ARITHMITIC_SUPPORT, JPGD_UNEXPECTED_MARKER,
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JPGD_NOT_JPEG, JPGD_UNSUPPORTED_MARKER, JPGD_BAD_DQT_LENGTH, JPGD_TOO_MANY_BLOCKS,
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JPGD_UNDEFINED_QUANT_TABLE, JPGD_UNDEFINED_HUFF_TABLE, JPGD_NOT_SINGLE_SCAN, JPGD_UNSUPPORTED_COLORSPACE,
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JPGD_UNSUPPORTED_SAMP_FACTORS, JPGD_DECODE_ERROR, JPGD_BAD_RESTART_MARKER, JPGD_ASSERTION_ERROR,
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JPGD_BAD_SOS_SPECTRAL, JPGD_BAD_SOS_SUCCESSIVE, JPGD_STREAM_READ, JPGD_NOTENOUGHMEM
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};
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// Input stream interface.
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// Derive from this class to read input data from sources other than files or memory. Set m_eof_flag to true when no more data is available.
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// The decoder is rather greedy: it will keep on calling this method until its internal input buffer is full, or until the EOF flag is set.
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// It the input stream contains data after the JPEG stream's EOI (end of image) marker it will probably be pulled into the internal buffer.
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// Call the get_total_bytes_read() method to determine the actual size of the JPEG stream after successful decoding.
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class jpeg_decoder_stream
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{
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public:
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jpeg_decoder_stream() { }
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virtual ~jpeg_decoder_stream() { }
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// The read() method is called when the internal input buffer is empty.
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// Parameters:
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// pBuf - input buffer
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// max_bytes_to_read - maximum bytes that can be written to pBuf
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// pEOF_flag - set this to true if at end of stream (no more bytes remaining)
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// Returns -1 on error, otherwise return the number of bytes actually written to the buffer (which may be 0).
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// Notes: This method will be called in a loop until you set *pEOF_flag to true or the internal buffer is full.
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virtual int read(uint8 *pBuf, int max_bytes_to_read, bool *pEOF_flag) = 0;
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};
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// stdio FILE stream class.
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class jpeg_decoder_file_stream : public jpeg_decoder_stream
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{
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jpeg_decoder_file_stream(const jpeg_decoder_file_stream &);
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jpeg_decoder_file_stream &operator =(const jpeg_decoder_file_stream &);
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FILE *m_pFile;
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bool m_eof_flag, m_error_flag;
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public:
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jpeg_decoder_file_stream();
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virtual ~jpeg_decoder_file_stream();
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bool open(const char *Pfilename);
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void close();
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virtual int read(uint8 *pBuf, int max_bytes_to_read, bool *pEOF_flag);
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};
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// Memory stream class.
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class jpeg_decoder_mem_stream : public jpeg_decoder_stream
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{
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const uint8 *m_pSrc_data;
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uint m_ofs, m_size;
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public:
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jpeg_decoder_mem_stream() : m_pSrc_data(NULL), m_ofs(0), m_size(0) { }
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jpeg_decoder_mem_stream(const uint8 *pSrc_data, uint size) : m_pSrc_data(pSrc_data), m_ofs(0), m_size(size) { }
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virtual ~jpeg_decoder_mem_stream() { }
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bool open(const uint8 *pSrc_data, uint size);
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void close() { m_pSrc_data = NULL; m_ofs = 0; m_size = 0; }
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virtual int read(uint8 *pBuf, int max_bytes_to_read, bool *pEOF_flag);
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};
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// Loads JPEG file from a jpeg_decoder_stream.
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unsigned char *decompress_jpeg_image_from_stream(jpeg_decoder_stream *pStream, int *width, int *height, int *actual_comps, int req_comps);
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enum
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{
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JPGD_IN_BUF_SIZE = 8192, JPGD_MAX_BLOCKS_PER_MCU = 10, JPGD_MAX_HUFF_TABLES = 8, JPGD_MAX_QUANT_TABLES = 4,
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JPGD_MAX_COMPONENTS = 4, JPGD_MAX_COMPS_IN_SCAN = 4, JPGD_MAX_BLOCKS_PER_ROW = 8192, JPGD_MAX_HEIGHT = 16384, JPGD_MAX_WIDTH = 16384
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};
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typedef int16 jpgd_quant_t;
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typedef int16 jpgd_block_t;
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class jpeg_decoder
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{
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public:
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// Call get_error_code() after constructing to determine if the stream is valid or not. You may call the get_width(), get_height(), etc.
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// methods after the constructor is called. You may then either destruct the object, or begin decoding the image by calling begin_decoding(), then decode() on each scanline.
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jpeg_decoder(jpeg_decoder_stream *pStream);
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~jpeg_decoder();
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// Call this method after constructing the object to begin decompression.
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// If JPGD_SUCCESS is returned you may then call decode() on each scanline.
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int begin_decoding();
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// Returns the next scan line.
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// For grayscale images, pScan_line will point to a buffer containing 8-bit pixels (get_bytes_per_pixel() will return 1).
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// Otherwise, it will always point to a buffer containing 32-bit RGBA pixels (A will always be 255, and get_bytes_per_pixel() will return 4).
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// Returns JPGD_SUCCESS if a scan line has been returned.
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// Returns JPGD_DONE if all scan lines have been returned.
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// Returns JPGD_FAILED if an error occurred. Call get_error_code() for a more info.
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int decode(const void** pScan_line, uint* pScan_line_len);
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inline jpgd_status get_error_code() const { return m_error_code; }
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inline int get_width() const { return m_image_x_size; }
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inline int get_height() const { return m_image_y_size; }
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inline int get_num_components() const { return m_comps_in_frame; }
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inline int get_bytes_per_pixel() const { return m_dest_bytes_per_pixel; }
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inline int get_bytes_per_scan_line() const { return m_image_x_size * get_bytes_per_pixel(); }
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// Returns the total number of bytes actually consumed by the decoder (which should equal the actual size of the JPEG file).
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inline int get_total_bytes_read() const { return m_total_bytes_read; }
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private:
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jpeg_decoder(const jpeg_decoder &);
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jpeg_decoder &operator =(const jpeg_decoder &);
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typedef void (*pDecode_block_func)(jpeg_decoder *, int, int, int);
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struct huff_tables
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{
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bool ac_table;
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uint look_up[256];
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uint look_up2[256];
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uint8 code_size[256];
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uint tree[512];
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};
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struct coeff_buf
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{
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uint8 *pData;
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int block_num_x, block_num_y;
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int block_len_x, block_len_y;
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int block_size;
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};
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struct mem_block
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{
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mem_block *m_pNext;
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size_t m_used_count;
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size_t m_size;
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char m_data[1];
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};
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jmp_buf m_jmp_state;
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mem_block *m_pMem_blocks;
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int m_image_x_size;
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int m_image_y_size;
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jpeg_decoder_stream *m_pStream;
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int m_progressive_flag;
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uint8 m_huff_ac[JPGD_MAX_HUFF_TABLES];
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uint8* m_huff_num[JPGD_MAX_HUFF_TABLES]; // pointer to number of Huffman codes per bit size
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uint8* m_huff_val[JPGD_MAX_HUFF_TABLES]; // pointer to Huffman codes per bit size
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jpgd_quant_t* m_quant[JPGD_MAX_QUANT_TABLES]; // pointer to quantization tables
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int m_scan_type; // Gray, Yh1v1, Yh1v2, Yh2v1, Yh2v2 (CMYK111, CMYK4114 no longer supported)
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int m_comps_in_frame; // # of components in frame
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int m_comp_h_samp[JPGD_MAX_COMPONENTS]; // component's horizontal sampling factor
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int m_comp_v_samp[JPGD_MAX_COMPONENTS]; // component's vertical sampling factor
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int m_comp_quant[JPGD_MAX_COMPONENTS]; // component's quantization table selector
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int m_comp_ident[JPGD_MAX_COMPONENTS]; // component's ID
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int m_comp_h_blocks[JPGD_MAX_COMPONENTS];
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int m_comp_v_blocks[JPGD_MAX_COMPONENTS];
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int m_comps_in_scan; // # of components in scan
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int m_comp_list[JPGD_MAX_COMPS_IN_SCAN]; // components in this scan
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int m_comp_dc_tab[JPGD_MAX_COMPONENTS]; // component's DC Huffman coding table selector
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int m_comp_ac_tab[JPGD_MAX_COMPONENTS]; // component's AC Huffman coding table selector
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int m_spectral_start; // spectral selection start
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int m_spectral_end; // spectral selection end
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int m_successive_low; // successive approximation low
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int m_successive_high; // successive approximation high
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int m_max_mcu_x_size; // MCU's max. X size in pixels
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int m_max_mcu_y_size; // MCU's max. Y size in pixels
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int m_blocks_per_mcu;
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int m_max_blocks_per_row;
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int m_mcus_per_row, m_mcus_per_col;
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int m_mcu_org[JPGD_MAX_BLOCKS_PER_MCU];
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int m_total_lines_left; // total # lines left in image
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int m_mcu_lines_left; // total # lines left in this MCU
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int m_real_dest_bytes_per_scan_line;
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int m_dest_bytes_per_scan_line; // rounded up
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int m_dest_bytes_per_pixel; // 4 (RGB) or 1 (Y)
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huff_tables* m_pHuff_tabs[JPGD_MAX_HUFF_TABLES];
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coeff_buf* m_dc_coeffs[JPGD_MAX_COMPONENTS];
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coeff_buf* m_ac_coeffs[JPGD_MAX_COMPONENTS];
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int m_eob_run;
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int m_block_y_mcu[JPGD_MAX_COMPONENTS];
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uint8* m_pIn_buf_ofs;
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int m_in_buf_left;
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int m_tem_flag;
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bool m_eof_flag;
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uint8 m_in_buf_pad_start[128];
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uint8 m_in_buf[JPGD_IN_BUF_SIZE + 128];
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uint8 m_in_buf_pad_end[128];
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int m_bits_left;
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uint m_bit_buf;
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int m_restart_interval;
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int m_restarts_left;
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int m_next_restart_num;
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int m_max_mcus_per_row;
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int m_max_blocks_per_mcu;
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int m_expanded_blocks_per_mcu;
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int m_expanded_blocks_per_row;
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int m_expanded_blocks_per_component;
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bool m_freq_domain_chroma_upsample;
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int m_max_mcus_per_col;
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uint m_last_dc_val[JPGD_MAX_COMPONENTS];
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jpgd_block_t* m_pMCU_coefficients;
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int m_mcu_block_max_zag[JPGD_MAX_BLOCKS_PER_MCU];
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uint8* m_pSample_buf;
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int m_crr[256];
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int m_cbb[256];
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int m_crg[256];
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int m_cbg[256];
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uint8* m_pScan_line_0;
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uint8* m_pScan_line_1;
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jpgd_status m_error_code;
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bool m_ready_flag;
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int m_total_bytes_read;
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void free_all_blocks();
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JPGD_NORETURN void stop_decoding(jpgd_status status);
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void *alloc(size_t n, bool zero = false);
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void word_clear(void *p, uint16 c, uint n);
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void prep_in_buffer();
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void read_dht_marker();
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void read_dqt_marker();
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void read_sof_marker();
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void skip_variable_marker();
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void read_dri_marker();
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void read_sos_marker();
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int next_marker();
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int process_markers();
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void locate_soi_marker();
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void locate_sof_marker();
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int locate_sos_marker();
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void init(jpeg_decoder_stream * pStream);
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void create_look_ups();
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void fix_in_buffer();
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void transform_mcu(int mcu_row);
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void transform_mcu_expand(int mcu_row);
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coeff_buf* coeff_buf_open(int block_num_x, int block_num_y, int block_len_x, int block_len_y);
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inline jpgd_block_t *coeff_buf_getp(coeff_buf *cb, int block_x, int block_y);
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void load_next_row();
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void decode_next_row();
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void make_huff_table(int index, huff_tables *pH);
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void check_quant_tables();
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void check_huff_tables();
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void calc_mcu_block_order();
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int init_scan();
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void init_frame();
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void process_restart();
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void decode_scan(pDecode_block_func decode_block_func);
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void init_progressive();
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void init_sequential();
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void decode_start();
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void decode_init(jpeg_decoder_stream * pStream);
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void H2V2Convert();
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void H2V1Convert();
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void H1V2Convert();
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void H1V1Convert();
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void gray_convert();
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void expanded_convert();
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void find_eoi();
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inline uint get_char();
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inline uint get_char(bool *pPadding_flag);
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inline void stuff_char(uint8 q);
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inline uint8 get_octet();
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inline uint get_bits(int num_bits);
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inline uint get_bits_no_markers(int numbits);
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inline int huff_decode(huff_tables *pH);
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inline int huff_decode(huff_tables *pH, int& extrabits);
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static inline uint8 clamp(int i);
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static void decode_block_dc_first(jpeg_decoder *pD, int component_id, int block_x, int block_y);
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static void decode_block_dc_refine(jpeg_decoder *pD, int component_id, int block_x, int block_y);
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static void decode_block_ac_first(jpeg_decoder *pD, int component_id, int block_x, int block_y);
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static void decode_block_ac_refine(jpeg_decoder *pD, int component_id, int block_x, int block_y);
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};
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} // namespace jpgd
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#endif // JPEG_DECODER_H
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6267
lodepng/lodepng.cpp
6267
lodepng/lodepng.cpp
File diff suppressed because it is too large
Load Diff
1705
lodepng/lodepng.h
1705
lodepng/lodepng.h
File diff suppressed because it is too large
Load Diff
12
rpcs3.sln
12
rpcs3.sln
@ -57,16 +57,10 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "xml", "wxWidgets\build\msw\
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "xrc", "wxWidgets\build\msw\wx_xrc.vcxproj", "{8BECCA95-C7D7-CFF8-FDB1-4950E9F8E8E6}"
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EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "lodepng", "lodepng", "{48675C2D-D949-400D-8758-E22FB6DF3D58}"
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "stblib", "stblib", "{9D839DFB-76E6-4F10-8EED-BA2AC7CC3FB6}"
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ProjectSection(SolutionItems) = preProject
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lodepng\lodepng.cpp = lodepng\lodepng.cpp
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lodepng\lodepng.h = lodepng\lodepng.h
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EndProjectSection
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EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "jpeg-compressor", "jpeg-compressor", "{9D9C8EDB-4469-42B3-A3C7-712CDABC43B0}"
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ProjectSection(SolutionItems) = preProject
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jpeg-compressor\jpgd.cpp = jpeg-compressor\jpgd.cpp
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jpeg-compressor\jpgd.h = jpeg-compressor\jpgd.h
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stblib\stb_image.c = stblib\stb_image.c
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stblib\stb_image.h = stblib\stb_image.h
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EndProjectSection
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EndProject
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Global
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206
rpcs3/Emu/SysCalls/Modules/cellGifDec.cpp
Normal file
206
rpcs3/Emu/SysCalls/Modules/cellGifDec.cpp
Normal file
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#include "stdafx.h"
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#include "Emu/SysCalls/SysCalls.h"
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#include "Emu/SysCalls/SC_FUNC.h"
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||||
#include "stblib/stb_image.h"
|
||||
#include "stblib/stb_image.c" // (TODO: Should we put this elsewhere?)
|
||||
|
||||
void cellGifDec_init();
|
||||
Module cellGifDec(0xf010, cellGifDec_init);
|
||||
|
||||
//Return Codes
|
||||
enum
|
||||
{
|
||||
CELL_GIFDEC_ERROR_OPEN_FILE = 0x80611300,
|
||||
CELL_GIFDEC_ERROR_STREAM_FORMAT = 0x80611301,
|
||||
CELL_GIFDEC_ERROR_SEQ = 0x80611302,
|
||||
CELL_GIFDEC_ERROR_ARG = 0x80611303,
|
||||
CELL_GIFDEC_ERROR_FATAL = 0x80611304,
|
||||
CELL_GIFDEC_ERROR_SPU_UNSUPPORT = 0x80611305,
|
||||
CELL_GIFDEC_ERROR_SPU_ERROR = 0x80611306,
|
||||
CELL_GIFDEC_ERROR_CB_PARAM = 0x80611307,
|
||||
};
|
||||
|
||||
struct CellGifDecInfo
|
||||
{
|
||||
u32 SWidth;
|
||||
u32 SHeight;
|
||||
u32 SGlobalColorTableFlag;
|
||||
u32 SColorResolution;
|
||||
u32 SSortFlag;
|
||||
u32 SSizeOfGlobalColorTable;
|
||||
u32 SBackGroundColor;
|
||||
u32 SPixelAspectRatio;
|
||||
};
|
||||
|
||||
struct CellGifDecSrc
|
||||
{
|
||||
u32 srcSelect; // CellGifDecStreamSrcSel
|
||||
u32 fileName; // const char*
|
||||
u64 fileOffset; // int64_t
|
||||
u32 fileSize;
|
||||
u32 streamPtr;
|
||||
u32 streamSize;
|
||||
u32 spuThreadEnable; // CellGifDecSpuThreadEna
|
||||
};
|
||||
|
||||
CellGifDecInfo current_info;
|
||||
CellGifDecSrc current_src;
|
||||
|
||||
|
||||
int cellGifDecCreate(u32 mainHandle, u32 threadInParam, u32 threadOutParam)
|
||||
{
|
||||
UNIMPLEMENTED_FUNC(cellGifDec);
|
||||
return CELL_OK;
|
||||
}
|
||||
|
||||
int cellGifDecExtCreate(u32 mainHandle, u32 threadInParam, u32 threadOutParam, u32 extThreadInParam, u32 extThreadOutParam)
|
||||
{
|
||||
UNIMPLEMENTED_FUNC(cellGifDec);
|
||||
return CELL_OK;
|
||||
}
|
||||
|
||||
int cellGifDecOpen(u32 mainHandle, u32 subHandle_addr, u32 src_addr, u32 openInfo)
|
||||
{
|
||||
//current_src.srcSelect = Memory.Read32(src_addr);
|
||||
current_src.fileName = Memory.Read32(src_addr+4);
|
||||
//current_src.fileOffset = Memory.Read32(src_addr+8);
|
||||
//current_src.fileSize = Memory.Read32(src_addr+12);
|
||||
//current_src.streamPtr = Memory.Read32(src_addr+16);
|
||||
//current_src.streamSize = Memory.Read32(src_addr+20);
|
||||
//current_src.spuThreadEnable = Memory.Read32(src_addr+24);
|
||||
|
||||
u32& fd_addr = subHandle_addr; // Set file descriptor as sub handler of the decoder
|
||||
int ret = cellFsOpen(current_src.fileName, 0, fd_addr, NULL, 0);
|
||||
if(ret != 0) return CELL_GIFDEC_ERROR_OPEN_FILE;
|
||||
|
||||
return CELL_OK;
|
||||
}
|
||||
|
||||
int cellGifDecReadHeader(u32 mainHandle, u32 subHandle, u32 info_addr)
|
||||
{
|
||||
u32& fd = subHandle;
|
||||
|
||||
//Check size of file
|
||||
u32 sb_addr = Memory.Alloc(52,1); // Alloc a CellFsStat struct
|
||||
cellFsFstat(fd, sb_addr);
|
||||
u64 fileSize = Memory.Read64(sb_addr+36); // Get CellFsStat.st_size
|
||||
Memory.Free(sb_addr);
|
||||
|
||||
//Write the header to buffer
|
||||
u32 buffer = Memory.Alloc(13,1); // Alloc buffer for GIF header
|
||||
u32 pos_addr = Memory.Alloc(8,1);
|
||||
cellFsLseek(fd, 0, 0, pos_addr);
|
||||
cellFsRead(fd, buffer, 13, NULL);
|
||||
Memory.Free(pos_addr);
|
||||
|
||||
if (Memory.Read32(buffer) != 0x47494638 ||
|
||||
(Memory.Read16(buffer+4) != 0x3961 &&
|
||||
Memory.Read16(buffer+4) != 0x3761)) // Error: The first 6 bytes are not a valid GIF signature
|
||||
{
|
||||
Memory.Free(buffer);
|
||||
return CELL_GIFDEC_ERROR_STREAM_FORMAT; // Surprisingly there is no error code related with headerss
|
||||
}
|
||||
|
||||
u8 packedField = Memory.Read8(buffer+10);
|
||||
current_info.SWidth = Memory.Read8(buffer+6) + Memory.Read8(buffer+7) * 256;
|
||||
current_info.SHeight = Memory.Read8(buffer+8) + Memory.Read8(buffer+9) * 256;
|
||||
current_info.SGlobalColorTableFlag = packedField >> 7;
|
||||
current_info.SColorResolution = (packedField >> 4) & 7;
|
||||
current_info.SSortFlag = (packedField >> 3) & 1;
|
||||
current_info.SSizeOfGlobalColorTable = packedField & 7;
|
||||
current_info.SBackGroundColor = Memory.Read8(buffer+11);
|
||||
current_info.SPixelAspectRatio = Memory.Read8(buffer+12);
|
||||
|
||||
mem_class_t info(info_addr);
|
||||
info += current_info.SWidth;
|
||||
info += current_info.SHeight;
|
||||
info += current_info.SGlobalColorTableFlag;
|
||||
info += current_info.SColorResolution;
|
||||
info += current_info.SSortFlag;
|
||||
info += current_info.SSizeOfGlobalColorTable;
|
||||
info += current_info.SBackGroundColor;
|
||||
info += current_info.SPixelAspectRatio;
|
||||
Memory.Free(buffer);
|
||||
|
||||
return CELL_OK;
|
||||
}
|
||||
|
||||
int cellGifDecSetParameter(u32 mainHandle, u32 subHandle, u32 inParam, u32 outParam)
|
||||
{
|
||||
UNIMPLEMENTED_FUNC(cellGifDec);
|
||||
return CELL_OK;
|
||||
}
|
||||
|
||||
int cellGifDecDecodeData(u32 mainHandle, u32 subHandle, u32 data_addr, u32 dataCtrlParam_addr, u32 dataOutInfo_addr)
|
||||
{
|
||||
u32& fd = subHandle;
|
||||
|
||||
//Get size of file
|
||||
u32 sb_addr = Memory.Alloc(52,1); // Alloc a CellFsStat struct
|
||||
cellFsFstat(fd, sb_addr);
|
||||
u64 fileSize = Memory.Read64(sb_addr+36); // Get CellFsStat.st_size
|
||||
Memory.Free(sb_addr);
|
||||
|
||||
//Copy the GIF file to a buffer
|
||||
u32 buffer = Memory.Alloc(fileSize,1);
|
||||
u32 pos_addr = Memory.Alloc(8,1);
|
||||
cellFsLseek(fd, 0, 0, pos_addr);
|
||||
cellFsRead(fd, buffer, fileSize, NULL);
|
||||
Memory.Free(pos_addr);
|
||||
|
||||
//Decode GIF file. (TODO: Is there any faster alternative? Can we do it without external libraries?)
|
||||
int width, height, actual_components;
|
||||
unsigned char *gif = new unsigned char [fileSize];
|
||||
for(u32 i = 0; i < fileSize; i++){
|
||||
gif[i] = Memory.Read8(buffer+i);
|
||||
}
|
||||
|
||||
unsigned char *image = stbi_load_from_memory((const unsigned char*)gif, fileSize, &width, &height, &actual_components, 4);
|
||||
if (!image)
|
||||
{
|
||||
Memory.Free(buffer);
|
||||
return CELL_GIFDEC_ERROR_STREAM_FORMAT;
|
||||
}
|
||||
u32 image_size = width * height * 4;
|
||||
for(u32 i = 0; i < image_size; i+=4){
|
||||
Memory.Write8(data_addr+i+0, image[i+3]);
|
||||
Memory.Write8(data_addr+i+1, image[i+0]);
|
||||
Memory.Write8(data_addr+i+2, image[i+1]);
|
||||
Memory.Write8(data_addr+i+3, image[i+2]);
|
||||
}
|
||||
Memory.Free(buffer);
|
||||
|
||||
return CELL_OK;
|
||||
}
|
||||
|
||||
int cellGifDecClose(u32 mainHandle, u32 subHandle)
|
||||
{
|
||||
u32& fd = subHandle;
|
||||
cellFsClose(fd);
|
||||
|
||||
return CELL_OK;
|
||||
}
|
||||
|
||||
int cellGifDecDestroy(u32 mainHandle)
|
||||
{
|
||||
UNIMPLEMENTED_FUNC(cellGifDec);
|
||||
return CELL_OK;
|
||||
}
|
||||
|
||||
void cellGifDec_init()
|
||||
{
|
||||
cellGifDec.AddFunc(0xb60d42a5, cellGifDecCreate);
|
||||
cellGifDec.AddFunc(0x4711cb7f, cellGifDecExtCreate);
|
||||
cellGifDec.AddFunc(0x75745079, cellGifDecOpen);
|
||||
cellGifDec.AddFunc(0xf0da95de, cellGifDecReadHeader);
|
||||
cellGifDec.AddFunc(0x41a90dc4, cellGifDecSetParameter);
|
||||
cellGifDec.AddFunc(0x44b1bc61, cellGifDecDecodeData);
|
||||
cellGifDec.AddFunc(0x116a7da9, cellGifDecClose);
|
||||
cellGifDec.AddFunc(0xe74b2cb1, cellGifDecDestroy);
|
||||
|
||||
/*cellGifDec.AddFunc(0x17fb83c1, cellGifDecExtOpen);
|
||||
cellGifDec.AddFunc(0xe53f91f2, cellGifDecExtReadHeader);
|
||||
cellGifDec.AddFunc(0x95cae771, cellGifDecExtSetParameter);
|
||||
cellGifDec.AddFunc(0x02e7e03e, cellGifDecExtDecodeData);*/
|
||||
}
|
||||
@ -2,7 +2,7 @@
|
||||
#include "Emu/SysCalls/SysCalls.h"
|
||||
#include "Emu/SysCalls/SC_FUNC.h"
|
||||
|
||||
#include "jpeg-compressor/jpgd.cpp"
|
||||
#include "stblib/stb_image.h"
|
||||
|
||||
void cellJpgDec_init();
|
||||
Module cellJpgDec(0x000f, cellJpgDec_init);
|
||||
@ -50,7 +50,7 @@ int cellJpgDecCreate(u32 mainHandle, u32 threadInParam, u32 threadOutParam)
|
||||
return CELL_OK;
|
||||
}
|
||||
|
||||
int cellJpgDecExtCreate(u32 mainHandle, u32 threadInParam, u32 threadOutParam)
|
||||
int cellJpgDecExtCreate(u32 mainHandle, u32 threadInParam, u32 threadOutParam, u32 extThreadInParam, u32 extThreadOutParam)
|
||||
{
|
||||
UNIMPLEMENTED_FUNC(cellJpgDec);
|
||||
return CELL_OK;
|
||||
@ -95,18 +95,18 @@ int cellJpgDecReadHeader(u32 mainHandle, u32 subHandle, u32 info_addr)
|
||||
u32 sb_addr = Memory.Alloc(52,1); // Alloc a CellFsStat struct
|
||||
cellFsFstat(fd, sb_addr);
|
||||
u64 fileSize = Memory.Read64(sb_addr+36); // Get CellFsStat.st_size
|
||||
Memory.Free(sb_addr);
|
||||
|
||||
//Copy the JPG file to a buffer
|
||||
u32 buffer = Memory.Alloc(fileSize,1);
|
||||
u32 pos_addr = Memory.Alloc(8,1);
|
||||
cellFsLseek(fd, 0, 0, pos_addr);
|
||||
cellFsRead(fd, buffer, fileSize, NULL);
|
||||
Memory.Free(pos_addr);
|
||||
|
||||
if (Memory.Read32(buffer) != 0xFFD8FFE0 || // Error: Not a valid SOI header
|
||||
Memory.Read32(buffer+6) != 0x4A464946) // Error: Not a valid JFIF string
|
||||
{
|
||||
Memory.Free(sb_addr);
|
||||
Memory.Free(pos_addr);
|
||||
Memory.Free(buffer);
|
||||
return CELL_JPGDEC_ERROR_HEADER;
|
||||
}
|
||||
@ -116,9 +116,17 @@ int cellJpgDecReadHeader(u32 mainHandle, u32 subHandle, u32 info_addr)
|
||||
while(i < fileSize)
|
||||
{
|
||||
i += block_length; // Increase the file index to get to the next block
|
||||
if (i >= fileSize) return CELL_JPGDEC_ERROR_HEADER; // Check to protect against segmentation faults
|
||||
if(Memory.Read8(buffer+i) != 0xFF) return CELL_JPGDEC_ERROR_HEADER; // Check that we are truly at the start of another block
|
||||
if(Memory.Read8(buffer+i+1) == 0xC0) break; // 0xFFC0 is the "Start of frame" marker which contains the file size
|
||||
if (i >= fileSize){
|
||||
Memory.Free(buffer);
|
||||
return CELL_JPGDEC_ERROR_HEADER; // Check to protect against segmentation faults
|
||||
}
|
||||
if(Memory.Read8(buffer+i) != 0xFF){
|
||||
Memory.Free(buffer);
|
||||
return CELL_JPGDEC_ERROR_HEADER; // Check that we are truly at the start of another block
|
||||
}
|
||||
if(Memory.Read8(buffer+i+1) == 0xC0){
|
||||
break; // 0xFFC0 is the "Start of frame" marker which contains the file size
|
||||
}
|
||||
i += 2; // Skip the block marker
|
||||
block_length = Memory.Read8(buffer+i)*0xFF + Memory.Read8(buffer+i+1); // Go to the next block
|
||||
}
|
||||
@ -133,9 +141,6 @@ int cellJpgDecReadHeader(u32 mainHandle, u32 subHandle, u32 info_addr)
|
||||
info += current_info.imageHeight;
|
||||
info += current_info.numComponents;
|
||||
info += current_info.colorSpace;
|
||||
|
||||
Memory.Free(sb_addr);
|
||||
Memory.Free(pos_addr);
|
||||
Memory.Free(buffer);
|
||||
|
||||
return CELL_OK;
|
||||
@ -149,20 +154,28 @@ int cellJpgDecDecodeData(u32 mainHandle, u32 subHandle, u32 data_addr, u32 dataC
|
||||
u32 sb_addr = Memory.Alloc(52,1); // Alloc a CellFsStat struct
|
||||
cellFsFstat(fd, sb_addr);
|
||||
u64 fileSize = Memory.Read64(sb_addr+36); // Get CellFsStat.st_size
|
||||
Memory.Free(sb_addr);
|
||||
|
||||
//Copy the JPG file to a buffer
|
||||
u32 buffer = Memory.Alloc(fileSize,1);
|
||||
u32 pos_addr = Memory.Alloc(8,1);
|
||||
cellFsLseek(fd, 0, 0, pos_addr);
|
||||
cellFsRead(fd, buffer, fileSize, NULL);
|
||||
Memory.Free(pos_addr);
|
||||
|
||||
//Decode JPG file. (TODO: Is there any faster alternative? Can we do it without external libraries?)
|
||||
int width, height, actual_components;
|
||||
unsigned char *jpg = new unsigned char [fileSize];
|
||||
for(u32 i = 0; i < fileSize; i++){
|
||||
jpg[i] = Memory.Read8(buffer+i);
|
||||
}
|
||||
|
||||
unsigned char *image = jpgd::decompress_jpeg_image_from_memory((const unsigned char*)jpg, fileSize, &width, &height, &actual_components, 4);
|
||||
unsigned char *image = stbi_load_from_memory((const unsigned char*)jpg, fileSize, &width, &height, &actual_components, 4);
|
||||
if (!image)
|
||||
{
|
||||
Memory.Free(buffer);
|
||||
return CELL_JPGDEC_ERROR_STREAM_FORMAT;
|
||||
}
|
||||
u32 image_size = width * height * 4;
|
||||
for(u32 i = 0; i < image_size; i+=4){
|
||||
Memory.Write8(data_addr+i+0, image[i+3]);
|
||||
@ -170,9 +183,6 @@ int cellJpgDecDecodeData(u32 mainHandle, u32 subHandle, u32 data_addr, u32 dataC
|
||||
Memory.Write8(data_addr+i+2, image[i+1]);
|
||||
Memory.Write8(data_addr+i+3, image[i+2]);
|
||||
}
|
||||
|
||||
Memory.Free(sb_addr);
|
||||
Memory.Free(pos_addr);
|
||||
Memory.Free(buffer);
|
||||
|
||||
return CELL_OK;
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
#include "Emu/SysCalls/SysCalls.h"
|
||||
#include "Emu/SysCalls/SC_FUNC.h"
|
||||
|
||||
#include "lodepng/lodepng.cpp"
|
||||
#include "stblib/stb_image.h"
|
||||
|
||||
void cellPngDec_init();
|
||||
Module cellPngDec(0x0018, cellPngDec_init);
|
||||
@ -93,6 +93,7 @@ int cellPngDecReadHeader(u32 mainHandle, u32 subHandle, u32 info_addr)
|
||||
u32 sb_addr = Memory.Alloc(52,1); // Alloc a CellFsStat struct
|
||||
cellFsFstat(fd, sb_addr);
|
||||
u64 fileSize = Memory.Read64(sb_addr+36); // Get CellFsStat.st_size
|
||||
Memory.Free(sb_addr);
|
||||
if(fileSize < 29) return CELL_PNGDEC_ERROR_HEADER; // Error: The file is smaller than the length of a PNG header
|
||||
|
||||
//Write the header to buffer
|
||||
@ -100,13 +101,12 @@ int cellPngDecReadHeader(u32 mainHandle, u32 subHandle, u32 info_addr)
|
||||
u32 pos_addr = Memory.Alloc(8,1);
|
||||
cellFsLseek(fd, 0, 0, pos_addr);
|
||||
cellFsRead(fd, buffer, 34, NULL);
|
||||
Memory.Free(pos_addr);
|
||||
|
||||
if (Memory.Read32(buffer) != 0x89504E47 ||
|
||||
Memory.Read32(buffer+4) != 0x0D0A1A0A || // Error: The first 8 bytes are not a valid PNG signature
|
||||
Memory.Read32(buffer+12) != 0x49484452) // Error: The PNG file does not start with an IHDR chunk
|
||||
{
|
||||
Memory.Free(sb_addr);
|
||||
Memory.Free(pos_addr);
|
||||
Memory.Free(buffer);
|
||||
return CELL_PNGDEC_ERROR_HEADER;
|
||||
}
|
||||
@ -127,9 +127,6 @@ int cellPngDecReadHeader(u32 mainHandle, u32 subHandle, u32 info_addr)
|
||||
info += current_info.bitDepth;
|
||||
info += current_info.interlaceMethod;
|
||||
info += current_info.chunkInformation;
|
||||
|
||||
Memory.Free(sb_addr);
|
||||
Memory.Free(pos_addr);
|
||||
Memory.Free(buffer);
|
||||
|
||||
return CELL_OK;
|
||||
@ -143,44 +140,35 @@ int cellPngDecDecodeData(u32 mainHandle, u32 subHandle, u32 data_addr, u32 dataC
|
||||
u32 sb_addr = Memory.Alloc(52,1); // Alloc a CellFsStat struct
|
||||
cellFsFstat(fd, sb_addr);
|
||||
u64 fileSize = Memory.Read64(sb_addr+36); // Get CellFsStat.st_size
|
||||
Memory.Free(sb_addr);
|
||||
|
||||
//Copy the PNG file to a buffer
|
||||
u32 buffer = Memory.Alloc(fileSize,1); // Alloc buffer for PNG header
|
||||
u32 buffer = Memory.Alloc(fileSize,1);
|
||||
u32 pos_addr = Memory.Alloc(8,1);
|
||||
cellFsLseek(fd, 0, 0, pos_addr);
|
||||
cellFsRead(fd, buffer, fileSize, NULL);
|
||||
Memory.Free(pos_addr);
|
||||
|
||||
//Decode PNG file. (TODO: Is there any faster alternative? Can we do it without external libraries?)
|
||||
std::vector<unsigned char> png; // PNG buffer
|
||||
std::vector<unsigned char> image; // Raw buffer
|
||||
|
||||
//Load contents in png buffer
|
||||
png.resize(size_t(fileSize));
|
||||
int width, height, actual_components;
|
||||
unsigned char *png = new unsigned char [fileSize];
|
||||
for(u32 i = 0; i < fileSize; i++){
|
||||
png[i] = Memory.Read8(buffer+i);
|
||||
}
|
||||
|
||||
//Decode
|
||||
unsigned width, height;
|
||||
unsigned error = lodepng::decode(image, width, height, png);
|
||||
if (error)
|
||||
unsigned char *image = stbi_load_from_memory((const unsigned char*)png, fileSize, &width, &height, &actual_components, 4);
|
||||
if (!image)
|
||||
{
|
||||
Memory.Free(sb_addr);
|
||||
Memory.Free(pos_addr);
|
||||
Memory.Free(buffer);
|
||||
return CELL_PNGDEC_ERROR_STREAM_FORMAT;
|
||||
}
|
||||
|
||||
u32 image_size = image.size();
|
||||
u32 image_size = width * height * 4;
|
||||
for(u32 i = 0; i < image_size; i+=4){
|
||||
Memory.Write8(data_addr+i+0, image[i+3]);
|
||||
Memory.Write8(data_addr+i+1, image[i+0]);
|
||||
Memory.Write8(data_addr+i+2, image[i+1]);
|
||||
Memory.Write8(data_addr+i+3, image[i+2]);
|
||||
}
|
||||
|
||||
Memory.Free(sb_addr);
|
||||
Memory.Free(pos_addr);
|
||||
Memory.Free(buffer);
|
||||
|
||||
return CELL_OK;
|
||||
|
||||
@ -245,6 +245,7 @@
|
||||
<ClCompile Include="Emu\SysCalls\lv2\SC_TTY.cpp" />
|
||||
<ClCompile Include="Emu\SysCalls\Modules.cpp" />
|
||||
<ClCompile Include="Emu\SysCalls\Modules\cellGcmSys.cpp" />
|
||||
<ClCompile Include="Emu\SysCalls\Modules\cellGifDec.cpp" />
|
||||
<ClCompile Include="Emu\SysCalls\Modules\cellJpgDec.cpp" />
|
||||
<ClCompile Include="Emu\SysCalls\Modules\cellPngDec.cpp" />
|
||||
<ClCompile Include="Emu\SysCalls\Modules\cellResc.cpp" />
|
||||
|
||||
@ -292,6 +292,9 @@
|
||||
<ClCompile Include="Emu\SysCalls\Modules\cellJpgDec.cpp">
|
||||
<Filter>Emu\SysCalls\Modules</Filter>
|
||||
</ClCompile>
|
||||
<ClCompile Include="Emu\SysCalls\Modules\cellGifDec.cpp">
|
||||
<Filter>Emu\SysCalls\Modules</Filter>
|
||||
</ClCompile>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ResourceCompile Include="rpcs3.rc" />
|
||||
|
||||
4401
stblib/stb_image.c
Normal file
4401
stblib/stb_image.c
Normal file
File diff suppressed because it is too large
Load Diff
329
stblib/stb_image.h
Normal file
329
stblib/stb_image.h
Normal file
@ -0,0 +1,329 @@
|
||||
/* stbi-1.33 - public domain JPEG/PNG reader - http://nothings.org/stb_image.c
|
||||
when you control the images you're loading
|
||||
no warranty implied; use at your own risk
|
||||
|
||||
QUICK NOTES:
|
||||
Primarily of interest to game developers and other people who can
|
||||
avoid problematic images and only need the trivial interface
|
||||
|
||||
JPEG baseline (no JPEG progressive)
|
||||
PNG 8-bit only
|
||||
|
||||
TGA (not sure what subset, if a subset)
|
||||
BMP non-1bpp, non-RLE
|
||||
PSD (composited view only, no extra channels)
|
||||
|
||||
GIF (*comp always reports as 4-channel)
|
||||
HDR (radiance rgbE format)
|
||||
PIC (Softimage PIC)
|
||||
|
||||
- decode from memory or through FILE (define STBI_NO_STDIO to remove code)
|
||||
- decode from arbitrary I/O callbacks
|
||||
- overridable dequantizing-IDCT, YCbCr-to-RGB conversion (define STBI_SIMD)
|
||||
|
||||
Latest revisions:
|
||||
1.33 (2011-07-14) minor fixes suggested by Dave Moore
|
||||
1.32 (2011-07-13) info support for all filetypes (SpartanJ)
|
||||
1.31 (2011-06-19) a few more leak fixes, bug in PNG handling (SpartanJ)
|
||||
1.30 (2011-06-11) added ability to load files via io callbacks (Ben Wenger)
|
||||
1.29 (2010-08-16) various warning fixes from Aurelien Pocheville
|
||||
|
||||
See end of file for full revision history.
|
||||
|
||||
TODO:
|
||||
stbi_info support for BMP,PSD,HDR,PIC
|
||||
|
||||
|
||||
============================ Contributors =========================
|
||||
|
||||
Image formats Optimizations & bugfixes
|
||||
Sean Barrett (jpeg, png, bmp) Fabian "ryg" Giesen
|
||||
Nicolas Schulz (hdr, psd)
|
||||
Jonathan Dummer (tga) Bug fixes & warning fixes
|
||||
Jean-Marc Lienher (gif) Marc LeBlanc
|
||||
Tom Seddon (pic) Christpher Lloyd
|
||||
Thatcher Ulrich (psd) Dave Moore
|
||||
Won Chun
|
||||
the Horde3D community
|
||||
Extensions, features Janez Zemva
|
||||
Jetro Lauha (stbi_info) Jonathan Blow
|
||||
James "moose2000" Brown (iPhone PNG) Laurent Gomila
|
||||
Ben "Disch" Wenger (io callbacks) Aruelien Pocheville
|
||||
Martin "SpartanJ" Golini Ryamond Barbiero
|
||||
David Woo
|
||||
|
||||
|
||||
If your name should be here but isn't, let Sean know.
|
||||
|
||||
*/
|
||||
|
||||
#ifndef STBI_INCLUDE_STB_IMAGE_H
|
||||
#define STBI_INCLUDE_STB_IMAGE_H
|
||||
|
||||
// To get a header file for this, either cut and paste the header,
|
||||
// or create stb_image.h, #define STBI_HEADER_FILE_ONLY, and
|
||||
// then include stb_image.c from it.
|
||||
|
||||
//// begin header file ////////////////////////////////////////////////////
|
||||
//
|
||||
// Limitations:
|
||||
// - no jpeg progressive support
|
||||
// - non-HDR formats support 8-bit samples only (jpeg, png)
|
||||
// - no delayed line count (jpeg) -- IJG doesn't support either
|
||||
// - no 1-bit BMP
|
||||
// - GIF always returns *comp=4
|
||||
//
|
||||
// Basic usage (see HDR discussion below):
|
||||
// int x,y,n;
|
||||
// unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
|
||||
// // ... process data if not NULL ...
|
||||
// // ... x = width, y = height, n = # 8-bit components per pixel ...
|
||||
// // ... replace '0' with '1'..'4' to force that many components per pixel
|
||||
// // ... but 'n' will always be the number that it would have been if you said 0
|
||||
// stbi_image_free(data)
|
||||
//
|
||||
// Standard parameters:
|
||||
// int *x -- outputs image width in pixels
|
||||
// int *y -- outputs image height in pixels
|
||||
// int *comp -- outputs # of image components in image file
|
||||
// int req_comp -- if non-zero, # of image components requested in result
|
||||
//
|
||||
// The return value from an image loader is an 'unsigned char *' which points
|
||||
// to the pixel data. The pixel data consists of *y scanlines of *x pixels,
|
||||
// with each pixel consisting of N interleaved 8-bit components; the first
|
||||
// pixel pointed to is top-left-most in the image. There is no padding between
|
||||
// image scanlines or between pixels, regardless of format. The number of
|
||||
// components N is 'req_comp' if req_comp is non-zero, or *comp otherwise.
|
||||
// If req_comp is non-zero, *comp has the number of components that _would_
|
||||
// have been output otherwise. E.g. if you set req_comp to 4, you will always
|
||||
// get RGBA output, but you can check *comp to easily see if it's opaque.
|
||||
//
|
||||
// An output image with N components has the following components interleaved
|
||||
// in this order in each pixel:
|
||||
//
|
||||
// N=#comp components
|
||||
// 1 grey
|
||||
// 2 grey, alpha
|
||||
// 3 red, green, blue
|
||||
// 4 red, green, blue, alpha
|
||||
//
|
||||
// If image loading fails for any reason, the return value will be NULL,
|
||||
// and *x, *y, *comp will be unchanged. The function stbi_failure_reason()
|
||||
// can be queried for an extremely brief, end-user unfriendly explanation
|
||||
// of why the load failed. Define STBI_NO_FAILURE_STRINGS to avoid
|
||||
// compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly
|
||||
// more user-friendly ones.
|
||||
//
|
||||
// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized.
|
||||
//
|
||||
// ===========================================================================
|
||||
//
|
||||
// iPhone PNG support:
|
||||
//
|
||||
// By default we convert iphone-formatted PNGs back to RGB; nominally they
|
||||
// would silently load as BGR, except the existing code should have just
|
||||
// failed on such iPhone PNGs. But you can disable this conversion by
|
||||
// by calling stbi_convert_iphone_png_to_rgb(0), in which case
|
||||
// you will always just get the native iphone "format" through.
|
||||
//
|
||||
// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per
|
||||
// pixel to remove any premultiplied alpha *only* if the image file explicitly
|
||||
// says there's premultiplied data (currently only happens in iPhone images,
|
||||
// and only if iPhone convert-to-rgb processing is on).
|
||||
//
|
||||
// ===========================================================================
|
||||
//
|
||||
// HDR image support (disable by defining STBI_NO_HDR)
|
||||
//
|
||||
// stb_image now supports loading HDR images in general, and currently
|
||||
// the Radiance .HDR file format, although the support is provided
|
||||
// generically. You can still load any file through the existing interface;
|
||||
// if you attempt to load an HDR file, it will be automatically remapped to
|
||||
// LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1;
|
||||
// both of these constants can be reconfigured through this interface:
|
||||
//
|
||||
// stbi_hdr_to_ldr_gamma(2.2f);
|
||||
// stbi_hdr_to_ldr_scale(1.0f);
|
||||
//
|
||||
// (note, do not use _inverse_ constants; stbi_image will invert them
|
||||
// appropriately).
|
||||
//
|
||||
// Additionally, there is a new, parallel interface for loading files as
|
||||
// (linear) floats to preserve the full dynamic range:
|
||||
//
|
||||
// float *data = stbi_loadf(filename, &x, &y, &n, 0);
|
||||
//
|
||||
// If you load LDR images through this interface, those images will
|
||||
// be promoted to floating point values, run through the inverse of
|
||||
// constants corresponding to the above:
|
||||
//
|
||||
// stbi_ldr_to_hdr_scale(1.0f);
|
||||
// stbi_ldr_to_hdr_gamma(2.2f);
|
||||
//
|
||||
// Finally, given a filename (or an open file or memory block--see header
|
||||
// file for details) containing image data, you can query for the "most
|
||||
// appropriate" interface to use (that is, whether the image is HDR or
|
||||
// not), using:
|
||||
//
|
||||
// stbi_is_hdr(char *filename);
|
||||
//
|
||||
// ===========================================================================
|
||||
//
|
||||
// I/O callbacks
|
||||
//
|
||||
// I/O callbacks allow you to read from arbitrary sources, like packaged
|
||||
// files or some other source. Data read from callbacks are processed
|
||||
// through a small internal buffer (currently 128 bytes) to try to reduce
|
||||
// overhead.
|
||||
//
|
||||
// The three functions you must define are "read" (reads some bytes of data),
|
||||
// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end).
|
||||
|
||||
|
||||
#ifndef STBI_NO_STDIO
|
||||
|
||||
#if defined(_MSC_VER) && _MSC_VER >= 0x1400
|
||||
#define _CRT_SECURE_NO_WARNINGS // suppress bogus warnings about fopen()
|
||||
#endif
|
||||
|
||||
#include <stdio.h>
|
||||
#endif
|
||||
|
||||
#define STBI_VERSION 1
|
||||
|
||||
enum
|
||||
{
|
||||
STBI_default = 0, // only used for req_comp
|
||||
|
||||
STBI_grey = 1,
|
||||
STBI_grey_alpha = 2,
|
||||
STBI_rgb = 3,
|
||||
STBI_rgb_alpha = 4
|
||||
};
|
||||
|
||||
typedef unsigned char stbi_uc;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// PRIMARY API - works on images of any type
|
||||
//
|
||||
|
||||
//
|
||||
// load image by filename, open file, or memory buffer
|
||||
//
|
||||
|
||||
extern stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp);
|
||||
|
||||
#ifndef STBI_NO_STDIO
|
||||
extern stbi_uc *stbi_load (char const *filename, int *x, int *y, int *comp, int req_comp);
|
||||
extern stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *comp, int req_comp);
|
||||
// for stbi_load_from_file, file pointer is left pointing immediately after image
|
||||
#endif
|
||||
|
||||
typedef struct
|
||||
{
|
||||
int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read
|
||||
void (*skip) (void *user,unsigned n); // skip the next 'n' bytes
|
||||
int (*eof) (void *user); // returns nonzero if we are at end of file/data
|
||||
} stbi_io_callbacks;
|
||||
|
||||
extern stbi_uc *stbi_load_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp);
|
||||
|
||||
#ifndef STBI_NO_HDR
|
||||
extern float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp);
|
||||
|
||||
#ifndef STBI_NO_STDIO
|
||||
extern float *stbi_loadf (char const *filename, int *x, int *y, int *comp, int req_comp);
|
||||
extern float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *comp, int req_comp);
|
||||
#endif
|
||||
|
||||
extern float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp);
|
||||
|
||||
extern void stbi_hdr_to_ldr_gamma(float gamma);
|
||||
extern void stbi_hdr_to_ldr_scale(float scale);
|
||||
|
||||
extern void stbi_ldr_to_hdr_gamma(float gamma);
|
||||
extern void stbi_ldr_to_hdr_scale(float scale);
|
||||
#endif // STBI_NO_HDR
|
||||
|
||||
// stbi_is_hdr is always defined
|
||||
extern int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user);
|
||||
extern int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len);
|
||||
#ifndef STBI_NO_STDIO
|
||||
extern int stbi_is_hdr (char const *filename);
|
||||
extern int stbi_is_hdr_from_file(FILE *f);
|
||||
#endif // STBI_NO_STDIO
|
||||
|
||||
|
||||
// get a VERY brief reason for failure
|
||||
// NOT THREADSAFE
|
||||
extern const char *stbi_failure_reason (void);
|
||||
|
||||
// free the loaded image -- this is just free()
|
||||
extern void stbi_image_free (void *retval_from_stbi_load);
|
||||
|
||||
// get image dimensions & components without fully decoding
|
||||
extern int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp);
|
||||
extern int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp);
|
||||
|
||||
#ifndef STBI_NO_STDIO
|
||||
extern int stbi_info (char const *filename, int *x, int *y, int *comp);
|
||||
extern int stbi_info_from_file (FILE *f, int *x, int *y, int *comp);
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
// for image formats that explicitly notate that they have premultiplied alpha,
|
||||
// we just return the colors as stored in the file. set this flag to force
|
||||
// unpremultiplication. results are undefined if the unpremultiply overflow.
|
||||
extern void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply);
|
||||
|
||||
// indicate whether we should process iphone images back to canonical format,
|
||||
// or just pass them through "as-is"
|
||||
extern void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert);
|
||||
|
||||
|
||||
// ZLIB client - used by PNG, available for other purposes
|
||||
|
||||
extern char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen);
|
||||
extern char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen);
|
||||
extern int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
|
||||
|
||||
extern char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen);
|
||||
extern int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen);
|
||||
|
||||
|
||||
// define faster low-level operations (typically SIMD support)
|
||||
#ifdef STBI_SIMD
|
||||
typedef void (*stbi_idct_8x8)(stbi_uc *out, int out_stride, short data[64], unsigned short *dequantize);
|
||||
// compute an integer IDCT on "input"
|
||||
// input[x] = data[x] * dequantize[x]
|
||||
// write results to 'out': 64 samples, each run of 8 spaced by 'out_stride'
|
||||
// CLAMP results to 0..255
|
||||
typedef void (*stbi_YCbCr_to_RGB_run)(stbi_uc *output, stbi_uc const *y, stbi_uc const *cb, stbi_uc const *cr, int count, int step);
|
||||
// compute a conversion from YCbCr to RGB
|
||||
// 'count' pixels
|
||||
// write pixels to 'output'; each pixel is 'step' bytes (either 3 or 4; if 4, write '255' as 4th), order R,G,B
|
||||
// y: Y input channel
|
||||
// cb: Cb input channel; scale/biased to be 0..255
|
||||
// cr: Cr input channel; scale/biased to be 0..255
|
||||
|
||||
extern void stbi_install_idct(stbi_idct_8x8 func);
|
||||
extern void stbi_install_YCbCr_to_RGB(stbi_YCbCr_to_RGB_run func);
|
||||
#endif // STBI_SIMD
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
//
|
||||
//
|
||||
//// end header file /////////////////////////////////////////////////////
|
||||
#endif // STBI_INCLUDE_STB_IMAGE_H
|
||||
|
||||
Loading…
Reference in New Issue
Block a user