#ifdef HAVE_CONFIG_H # include #endif /* ifdef HAVE_CONFIG_H */ #ifdef __OpenBSD__ # include #endif /* ifdef __OpenBSD__ */ #ifdef HAVE_NETINET_IN_H # include #endif #ifdef _WIN32 # include # define HAVE_BOOLEAN # define XMD_H /* This prevents libjpeg to redefine INT32 */ #endif /* ifdef _WIN32 */ #include #include #include #include #include "Eet.h" #include "Eet_private.h" #include "rg_etc1.h" #ifdef BUILD_NEON #include #endif #ifndef WORDS_BIGENDIAN /* x86 */ #define A_VAL(p) (((uint8_t *)(p))[3]) #define R_VAL(p) (((uint8_t *)(p))[2]) #define G_VAL(p) (((uint8_t *)(p))[1]) #define B_VAL(p) (((uint8_t *)(p))[0]) #else /* ppc */ #define A_VAL(p) (((uint8_t *)(p))[0]) #define R_VAL(p) (((uint8_t *)(p))[1]) #define G_VAL(p) (((uint8_t *)(p))[2]) #define B_VAL(p) (((uint8_t *)(p))[3]) #endif #define ARGB_JOIN(a,r,g,b) \ (((a) << 24) + ((r) << 16) + ((g) << 8) + (b)) #define OFFSET_BLOCK_SIZE 4 #define OFFSET_ALGORITHM 5 #define OFFSET_OPTIONS 6 #define OFFSET_WIDTH 8 #define OFFSET_HEIGHT 12 #define OFFSET_BLOCKS 16 #undef MIN #define MIN(x, y) (((x) < (y)) ? (x) : (y)) #undef MAX #define MAX(x, y) (((x) > (y)) ? (x) : (y)) /*---*/ typedef struct _JPEG_error_mgr *emptr; /*---*/ struct _JPEG_error_mgr { struct jpeg_error_mgr pub; jmp_buf setjmp_buffer; }; struct jpeg_membuf_dst { struct jpeg_destination_mgr pub; void **dst_buf; size_t *dst_len; unsigned char *buf; size_t len; int failed; struct jpeg_membuf_dst *self; }; static void _eet_jpeg_membuf_dst_init(j_compress_ptr cinfo) { /* FIXME: Use eina attribute */ (void)cinfo; } static boolean _eet_jpeg_membuf_dst_flush(j_compress_ptr cinfo) { struct jpeg_membuf_dst *dst = (struct jpeg_membuf_dst *)cinfo->dest; unsigned char *buf; if (dst->len >= 0x40000000 || !(buf = realloc(dst->buf, dst->len * 2))) { dst->failed = 1; dst->pub.next_output_byte = dst->buf; dst->pub.free_in_buffer = dst->len; return TRUE; } dst->pub.next_output_byte = buf + ((unsigned char *)dst->pub.next_output_byte - dst->buf); dst->buf = buf; dst->pub.free_in_buffer += dst->len; dst->len *= 2; return FALSE; } static void _eet_jpeg_membuf_dst_term(j_compress_ptr cinfo) { struct jpeg_membuf_dst *dst = ((struct jpeg_membuf_dst *)cinfo->dest)->self; if (dst->failed) { *dst->dst_buf = NULL; *dst->dst_len = 0; free(dst->buf); } else { *dst->dst_buf = dst->buf; *dst->dst_len = (unsigned char *)dst->pub.next_output_byte - dst->buf; } free(dst); cinfo->dest = NULL; } static int eet_jpeg_membuf_dst(j_compress_ptr cinfo, void **buf, size_t *len) { struct jpeg_membuf_dst *dst; dst = calloc(1, sizeof(*dst)); if (!dst) return -1; dst->buf = malloc(32768); if (!dst->buf) { free(dst); return -1; } dst->self = dst; dst->len = 32768; cinfo->dest = &dst->pub; dst->pub.init_destination = _eet_jpeg_membuf_dst_init; dst->pub.empty_output_buffer = _eet_jpeg_membuf_dst_flush; dst->pub.term_destination = _eet_jpeg_membuf_dst_term; dst->pub.free_in_buffer = dst->len; dst->pub.next_output_byte = dst->buf; dst->dst_buf = buf; dst->dst_len = len; dst->failed = 0; return 0; } /*---*/ static int eet_data_image_jpeg_header_decode(const void *data, int size, unsigned int *w, unsigned int *h, const Eet_Colorspace **cspaces); static int eet_data_image_jpeg_rgb_decode(const void *data, int size, unsigned int src_x, unsigned int src_y, unsigned int *d, unsigned int w, unsigned int h, Eet_Colorspace cspace); static int eet_data_image_jpeg_alpha_decode(const void *data, int size, unsigned int src_x, unsigned int src_y, void *d, unsigned int w, unsigned int h, Eet_Colorspace cspace); static void * eet_data_image_lossless_convert(int *size, const void *data, unsigned int w, unsigned int h, int alpha); static void * eet_data_image_lossless_compressed_convert(int *size, const void *data, unsigned int w, unsigned int h, int alpha, int compression); static void * eet_data_image_jpeg_convert(int *size, const void *data, unsigned int w, unsigned int h, int alpha, int quality); static void * eet_data_image_jpeg_alpha_convert(int *size, const void *data, unsigned int w, unsigned int h, int alpha, int quality); /*---*/ #define SWAP64(x) x = eina_swap64(x) #define SWAP32(x) x = eina_swap32(x) #define SWAP16(x) x = eina_swap16(x) #ifdef CONV8 # undef CONV8 #endif /* ifdef CONV8 */ #ifdef CONV16 # undef CONV16 #endif /* ifdef CONV16 */ #ifdef CONV32 # undef CONV32 #endif /* ifdef CONV32 */ #ifdef CONV64 # undef CONV64 #endif /* ifdef CONV64 */ #define CONV8(x) #define CONV16(x) do {if (_eet_image_words_bigendian) {SWAP16(x); }} while(0) #define CONV32(x) do {if (_eet_image_words_bigendian) {SWAP32(x); }} while(0) #define CONV64(x) do {if (_eet_image_words_bigendian) {SWAP64(x); }} while(0) /*---*/ static int _eet_image_words_bigendian = -1; static inline void _eet_image_endian_check(void) { if (_eet_image_words_bigendian == -1) { unsigned long int v; v = htonl(0x12345678); if (v == 0x12345678) _eet_image_words_bigendian = 1; else _eet_image_words_bigendian = 0; } } static inline void _eet_image_endian_swap(void *data, unsigned int length) { if (_eet_image_words_bigendian) { unsigned int *buffer = data; unsigned int i; for (i = 0; i < length; i++) SWAP32(buffer[i]); } } /*---*/ static void _eet_image_jpeg_error_exit_cb(j_common_ptr cinfo) { char buffer[JMSG_LENGTH_MAX]; emptr errmgr; (*cinfo->err->format_message)(cinfo, buffer); ERR("%s", buffer); errmgr = (emptr)cinfo->err; longjmp(errmgr->setjmp_buffer, 1); } static void _eet_image_jpeg_output_message_cb(j_common_ptr cinfo) { char buffer[JMSG_LENGTH_MAX]; /* emptr errmgr; */ (*cinfo->err->format_message)(cinfo, buffer); ERR("%s", buffer); /* errmgr = (emptr)cinfo->err; longjmp(errmgr->setjmp_buffer, 1); */ } static void _eet_image_jpeg_emit_message_cb(j_common_ptr cinfo, int msg_level) { char buffer[JMSG_LENGTH_MAX]; struct jpeg_error_mgr *err; /* emptr errmgr; */ err = cinfo->err; if (msg_level < 0) { if ((err->num_warnings == 0) || (err->trace_level >= 3)) { (*cinfo->err->format_message)(cinfo, buffer); WRN("%s", buffer); } err->num_warnings++; } else { if (err->trace_level >= msg_level) { (*cinfo->err->format_message)(cinfo, buffer); INF("%s", buffer); } } /* errmgr = (emptr)cinfo->err; longjmp(errmgr->setjmp_buffer, 1); */ } static int eet_data_image_jpeg_header_decode(const void *data, int size, unsigned int *w, unsigned int *h, const Eet_Colorspace **cspaces) { Emile_Image_Load_Opts opts; Emile_Image_Property prop; Eina_Binbuf *bin; Emile_Image *image; Emile_Image_Load_Error error; int r = 0; bin = eina_binbuf_manage_read_only_new_length(data, size); if (!bin) return 0; memset(&opts, 0, sizeof (Emile_Image_Load_Opts)); image = emile_image_jpeg_memory_open(bin, &opts, NULL, &error); if (!image) goto on_error; memset(&prop, 0, sizeof (prop)); if (!emile_image_head(image, &prop, sizeof (Emile_Image_Property), &error)) goto on_error; *w = prop.w; *h = prop.h; if (cspaces) *cspaces = prop.cspaces; if (*w > 0 && *w <= 8192 && *h > 0 && *h <= 8192) r = 1; on_error: emile_image_close(image); eina_binbuf_free(bin); return r; } static int eet_data_image_jpeg_rgb_decode(const void *data, int size, unsigned int src_x, unsigned int src_y, unsigned int *d, unsigned int w, unsigned int h, Eet_Colorspace cspace) { Emile_Image_Load_Opts opts; Emile_Image_Property prop; Emile_Image *image; Eina_Binbuf *bin; Emile_Image_Load_Error error; int r = 0; /* FIXME: handle src_x, src_y correctly */ if (!d) return 0; // Fix for ABI incompatibility between 1.10 and 1.11 if (cspace == 8) cspace = 9; bin = eina_binbuf_manage_read_only_new_length(data, size); if (!bin) return 0; memset(&opts, 0, sizeof (Emile_Image_Load_Opts)); opts.region.x = src_x; opts.region.y = src_y; opts.region.w = w; opts.region.h = h; image = emile_image_jpeg_memory_open(bin, &opts, NULL, &error); if (!image) goto on_error; memset(&prop, 0, sizeof (prop)); if (!emile_image_head(image, &prop, sizeof (Emile_Image_Property), &error)) goto on_error; prop.cspace = cspace; if (!emile_image_data(image, &prop, sizeof (Emile_Image_Property), d, &error)) goto on_error; r = 1; on_error: emile_image_close(image); eina_binbuf_free(bin); return r; } static int eet_data_image_jpeg_alpha_decode(const void *data, int size, unsigned int src_x, unsigned int src_y, void *pixels, unsigned int w, unsigned int h, Eet_Colorspace cspace) { Emile_Image_Load_Opts opts; Emile_Image_Property prop; Emile_Image *image; Eina_Binbuf *bin; unsigned char *remember = NULL, *tmp; Emile_Image_Load_Error error; int r = 0; unsigned int i; /* FIXME: handle src_x, src_y and row_stride correctly */ if (!pixels) return 0; bin = eina_binbuf_manage_read_only_new_length(data, size); if (!bin) return 0; memset(&opts, 0, sizeof (Emile_Image_Load_Opts)); opts.region.x = src_x; opts.region.y = src_y; opts.region.w = w; opts.region.h = h; image = emile_image_jpeg_memory_open(bin, &opts, NULL, &error); if (!image) goto on_error; memset(&prop, 0, sizeof (prop)); if (!emile_image_head(image, &prop, sizeof (Emile_Image_Property), &error)) goto on_error; remember = tmp = malloc(sizeof (unsigned char) * w * h); if (!tmp) goto on_error; // Alpha should always be encoded as GRY8 prop.cspace = EMILE_COLORSPACE_GRY8; if (!emile_image_data(image, &prop, sizeof (Emile_Image_Property), tmp, &error)) goto on_error; if (cspace == EMILE_COLORSPACE_AGRY88) { unsigned short *d = pixels; for (i = 0; i < w * h; i++) { *d = ((*d) & 0x00ff) | ((*tmp) << 8); tmp++; d++; } } else if (cspace == EMILE_COLORSPACE_ARGB8888) { unsigned int *d = pixels; for (i = 0; i < w * h; i++) { *d = ((*d) & 0x00ffffff) | ((*tmp) << 24); tmp++; d++; } } r = 1; on_error: free(remember); emile_image_close(image); eina_binbuf_free(bin); return r; } // FIXME: Importing two functions from evas here: premul & unpremul static void _eet_argb_premul(unsigned int *data, unsigned int len) { unsigned int *de = data + len; while (data < de) { unsigned int a = 1 + (*data >> 24); *data = (*data & 0xff000000) + (((((*data) >> 8) & 0xff) * a) & 0xff00) + (((((*data) & 0x00ff00ff) * a) >> 8) & 0x00ff00ff); data++; } } static void _eet_argb_unpremul(unsigned int *data, unsigned int len) { unsigned int *de = data + len; unsigned int p_val = 0x00000000, p_res = 0x00000000; while (data < de) { unsigned int a = (*data >> 24) + 1; if (p_val == *data) *data = p_res; else { p_val = *data; if ((a > 1) && (a < 256)) *data = ARGB_JOIN(a, (R_VAL(data) * 255) / a, (G_VAL(data) * 255) / a, (B_VAL(data) * 255) / a); else if (a == 1) *data = 0x00000000; p_res = *data; } data++; } } static int eet_data_image_etc2_decode(const void *data, unsigned int length, unsigned int *p, unsigned int dst_x, unsigned int dst_y, unsigned int dst_w, unsigned int dst_h, Eina_Bool alpha, Eet_Colorspace cspace, Eet_Image_Encoding lossy) { Emile_Image_Load_Opts opts; Emile_Image_Property prop; Emile_Image *image; Eina_Binbuf *bin; Emile_Image_Load_Error error; int i; int r = 0; // Fix for ABI incompatibility between 1.10 and 1.11 if (cspace == 8) cspace = 9; bin = eina_binbuf_manage_read_only_new_length(data, length); if (!bin) return 0; memset(&opts, 0, sizeof (Emile_Image_Load_Opts)); opts.region.x = dst_x; opts.region.y = dst_y; opts.region.w = dst_w; opts.region.h = dst_h; image = emile_image_tgv_memory_open(bin, &opts, NULL, &error); if (!image) goto on_error; memset(&prop, 0, sizeof (prop)); if (!emile_image_head(image, &prop, sizeof (Emile_Image_Property), &error)) goto on_error; for (i = 0; prop.cspaces[i] != EMILE_COLORSPACE_ARGB8888; i++) { if (prop.cspaces[i] == cspace) break; } switch (cspace) { case EMILE_COLORSPACE_ETC1: if (lossy != EET_IMAGE_ETC1) goto on_error; if (alpha != EINA_FALSE) goto on_error; break; case EMILE_COLORSPACE_RGB8_ETC2: if (lossy != EET_IMAGE_ETC2_RGB) goto on_error; if (alpha != EINA_FALSE) goto on_error; break; case EMILE_COLORSPACE_RGBA8_ETC2_EAC: if (lossy != EET_IMAGE_ETC2_RGBA) goto on_error; if (alpha != EINA_TRUE) goto on_error; break; case EMILE_COLORSPACE_ETC1_ALPHA: if (lossy != EET_IMAGE_ETC1_ALPHA) goto on_error; if (alpha != EINA_TRUE) goto on_error; break; case EET_COLORSPACE_ARGB8888: break; default: goto on_error; } prop.cspace = cspace; if (!emile_image_data(image, &prop, sizeof (Emile_Image_Load_Opts), p, &error)) goto on_error; // TODO: Add support for more unpremultiplied modes (ETC2) if ((cspace == EET_COLORSPACE_ARGB8888) && !prop.premul) _eet_argb_premul(p, prop.w * prop.h); r = 1; on_error: emile_image_close(image); eina_binbuf_free(bin); return r; } static void * eet_data_image_lossless_convert(int *size, const void *data, unsigned int w, unsigned int h, int alpha) { unsigned char *d; int *header; _eet_image_endian_check(); d = malloc((w * h * 4) + (8 * 4)); if (!d) return NULL; header = (int *)d; memset(d, 0, 32); header[0] = 0xac1dfeed; header[1] = w; header[2] = h; header[3] = alpha; memcpy(d + 32, data, w * h * 4); _eet_image_endian_swap(header, ((w * h) + 8)); *size = ((w * h * 4) + (8 * 4)); return d; } static void * eet_data_image_lossless_compressed_convert(int *size, const void *data, unsigned int w, unsigned int h, int alpha, int compression) { _eet_image_endian_check(); { Eina_Binbuf *in; Eina_Binbuf *out; unsigned char *result; int *bigend_data = NULL; int header[8]; if (_eet_image_words_bigendian) { bigend_data = (int *) malloc(w * h * 4); if (!bigend_data) return NULL; memcpy(bigend_data, data, w * h * 4); _eet_image_endian_swap(bigend_data, w * h); data = (const char *) bigend_data; } in = eina_binbuf_manage_read_only_new_length(data, w * h * 4); if (!in) { free(bigend_data); return NULL; } out = emile_compress(in, eet_2_emile_compressor(compression), compression); if (!out || (eina_binbuf_length_get(out) > eina_binbuf_length_get(in))) { eina_binbuf_free(in); eina_binbuf_free(out); free(bigend_data); *size = -1; return NULL; } eina_binbuf_free(in); memset(header, 0, 8 * sizeof(int)); header[0] = 0xac1dfeed; header[1] = w; header[2] = h; header[3] = alpha; header[4] = compression; _eet_image_endian_swap(header, 8); free(bigend_data); eina_binbuf_insert_length(out, (const unsigned char*) header, sizeof (header), 0); *size = eina_binbuf_length_get(out); result = eina_binbuf_string_steal(out); eina_binbuf_free(out); return result; } } static int _block_size_get(int size) { static const int MAX_BLOCK = 6; // 256 pixels int k = 0; while ((4 << k) < size) k++; k = MAX(0, k - 1); if ((size * 3 / 2) >= (4 << k)) return MAX(0, MIN(k - 1, MAX_BLOCK)); return MIN(k, MAX_BLOCK); } static inline void _alpha_to_greyscale_convert(uint32_t *data, int len) { for (int k = 0; k < len; k++) { int alpha = A_VAL(data); *data++ = ARGB_JOIN(alpha, alpha, alpha, alpha); } } static void * eet_data_image_etc1_compressed_convert(int *size, const unsigned char *data8, unsigned int w, unsigned int h, int quality, int compress, Eet_Image_Encoding lossy) { rg_etc1_pack_params param; uint8_t *buffer; uint32_t *data; uint32_t nl_width, nl_height; uint8_t header[8] = "TGV1"; int block_width, block_height, macro_block_width, macro_block_height; int block_count, image_stride, image_height, etc_block_size; int num_planes = 1; Eet_Colorspace cspace; Eina_Bool unpremul = EINA_FALSE, alpha_texture = EINA_FALSE; Eina_Binbuf *r = NULL; void *result; const char *codec; r = eina_binbuf_new(); if (!r) return NULL; image_stride = w; image_height = h; nl_width = htonl(image_stride); nl_height = htonl(image_height); compress = !!compress; // Disable dithering, as it will deteriorate the quality of flat surfaces param.m_dithering = 0; if (quality > 95) param.m_quality = rg_etc1_high_quality; else if (quality > 30) param.m_quality = rg_etc1_medium_quality; else param.m_quality = rg_etc1_low_quality; // header[4]: 4 bit block width, 4 bit block height block_width = _block_size_get(image_stride + 2); block_height = _block_size_get(image_height + 2); header[4] = (block_height << 4) | block_width; // header[5]: 0 for ETC1, 1 for RGB8_ETC2, 2 for RGBA8_ETC2_EAC, 3 for ETC1_ALPHA switch (lossy) { case EET_IMAGE_ETC1: cspace = EET_COLORSPACE_ETC1; etc_block_size = 8; header[5] = 0; codec = "ETC1"; break; case EET_IMAGE_ETC2_RGB: cspace = EET_COLORSPACE_RGB8_ETC2; etc_block_size = 8; header[5] = 1; codec = "ETC2 (RGB)"; break; case EET_IMAGE_ETC2_RGBA: cspace = EET_COLORSPACE_RGBA8_ETC2_EAC; etc_block_size = 16; header[5] = 2; codec = "ETC2 (RGBA)"; break; case EET_IMAGE_ETC1_ALPHA: cspace = EET_COLORSPACE_ETC1_ALPHA; etc_block_size = 8; num_planes = 2; // RGB and Alpha header[5] = 3; codec = "ETC1+Alpha"; break; default: abort(); } // header[6]: 0 for raw, 1, for LZ4 compressed, 4 for unpremultiplied RGBA // blockless mode (0x2) is never used here header[6] = (compress ? 0x1 : 0x0) | (unpremul ? 0x4 : 0x0); // header[7]: unused options // Note: consider extending the header instead of filling all the bits here header[7] = 0; // Encoding being super slow, let's inform the user first. // FIXME: Ctrl+C must be handled INF("Encoding %dx%d image to %s, this may take a while...", w, h, codec); // Write header eina_binbuf_append_length(r, header, sizeof (header)); eina_binbuf_append_length(r, (unsigned char*) &nl_width, sizeof (nl_width)); eina_binbuf_append_length(r, (unsigned char*) &nl_height, sizeof (nl_height)); // Real block size in pixels, obviously a multiple of 4 macro_block_width = 4 << block_width; macro_block_height = 4 << block_height; // Number of ETC1 blocks in a compressed block block_count = (macro_block_width * macro_block_height) / (4 * 4); buffer = alloca(block_count * etc_block_size); // Write a whole plane (RGB or Alpha) for (int plane = 0; plane < num_planes; plane++) { if (!alpha_texture) { // Normal mode data = (uint32_t *) data8; } else if (!plane) { int len = image_stride * image_height; // RGB plane for ETC1+Alpha data = malloc(len * 4); if (!data) goto finish; memcpy(data, data8, len * 4); if (unpremul) _eet_argb_unpremul(data, len); } else { // Alpha plane for ETC1+Alpha _alpha_to_greyscale_convert(data, image_stride * image_height); } // Write macro block for (int y = 0; y < image_height + 2; y += macro_block_height) { uint32_t *input, *last_col, *last_row, *last_pix; int real_y; if (y == 0) real_y = 0; else if (y < image_height + 1) real_y = y - 1; else real_y = image_height - 1; for (int x = 0; x < image_stride + 2; x += macro_block_width) { Eina_Binbuf *in; uint8_t *offset = buffer; int real_x = x; if (x == 0) real_x = 0; else if (x < image_stride + 1) real_x = x - 1; else real_x = image_stride - 1; input = data + real_y * image_stride + real_x; last_row = data + image_stride * (image_height - 1) + real_x; last_col = data + (real_y + 1) * image_stride - 1; last_pix = data + image_height * image_stride - 1; for (int by = 0; by < macro_block_height; by += 4) { int dup_top = ((y + by) == 0) ? 1 : 0; int max_row = MAX(0, MIN(4, image_height - real_y - by)); int oy = (y == 0) ? 1 : 0; for (int bx = 0; bx < macro_block_width; bx += 4) { int dup_left = ((x + bx) == 0) ? 1 : 0; int max_col = MAX(0, MIN(4, image_stride - real_x - bx)); uint32_t todo[16] = { 0 }; int row, col; int ox = (x == 0) ? 1 : 0; if (dup_left) { // Duplicate left column for (row = 0; row < max_row; row++) todo[row * 4] = input[row * image_stride]; for (row = max_row; row < 4; row++) todo[row * 4] = last_row[0]; } if (dup_top) { // Duplicate top row for (col = 0; col < max_col; col++) todo[col] = input[MAX(col + bx - ox, 0)]; for (col = max_col; col < 4; col++) todo[col] = last_col[0]; } for (row = dup_top; row < 4; row++) { for (col = dup_left; col < max_col; col++) { if (row < max_row) { // Normal copy todo[row * 4 + col] = input[(row + by - oy) * image_stride + bx + col - ox]; } else { // Copy last line todo[row * 4 + col] = last_row[col + bx - ox]; } } for (col = max_col; col < 4; col++) { // Right edge if (row < max_row) { // Duplicate last column todo[row * 4 + col] = last_col[MAX(row + by - oy, 0) * image_stride]; } else { // Duplicate very last pixel again and again todo[row * 4 + col] = *last_pix; } } } switch (cspace) { case EET_COLORSPACE_ETC1: case EET_COLORSPACE_ETC1_ALPHA: rg_etc1_pack_block(offset, (uint32_t *) todo, ¶m); break; case EET_COLORSPACE_RGB8_ETC2: etc2_rgb8_block_pack(offset, (uint32_t *) todo, ¶m); break; case EET_COLORSPACE_RGBA8_ETC2_EAC: etc2_rgba8_block_pack(offset, (uint32_t *) todo, ¶m); break; default: return 0; } #ifdef DEBUG_STATS if (plane == 0) { // Decode to compute PSNR, this is slow. uint32_t done[16]; if (alpha) rg_etc2_rgba8_decode_block(offset, done); else rg_etc2_rgb8_decode_block(offset, done); for (int k = 0; k < 16; k++) { const int r = (R_VAL(&(todo[k])) - R_VAL(&(done[k]))); const int g = (G_VAL(&(todo[k])) - G_VAL(&(done[k]))); const int b = (B_VAL(&(todo[k])) - B_VAL(&(done[k]))); const int a = (A_VAL(&(todo[k])) - A_VAL(&(done[k]))); mse += r*r + g*g + b*b; if (alpha) mse_alpha += a*a; mse_div++; } } #endif offset += etc_block_size; } } in = eina_binbuf_manage_read_only_new_length(buffer, block_count * etc_block_size); if (compress) { Eina_Binbuf *out; out = emile_compress(in, EMILE_LZ4HC, EMILE_COMPRESSOR_BEST); eina_binbuf_free(in); in = out; } if (eina_binbuf_length_get(in) > 0) { unsigned int blen = eina_binbuf_length_get(in); while (blen) { unsigned char plen; plen = blen & 0x7F; blen = blen >> 7; if (blen) plen = 0x80 | plen; eina_binbuf_append_length(r, &plen, 1); } eina_binbuf_append_buffer(r, in); } eina_binbuf_free(in); } // 4 rows } // macroblocks } // planes finish: if (alpha_texture) free(data); *size = eina_binbuf_length_get(r); result = eina_binbuf_string_steal(r); eina_binbuf_free(r); return result; } static inline void * _eet_data_image_grey_encode(const void *data, unsigned int w, unsigned int h, int quality, int *size) { const int *ptr; void *dst = NULL; size_t sz = 0; struct _JPEG_error_mgr jerr; JSAMPROW *jbuf; struct jpeg_compress_struct cinfo; unsigned char *buf; buf = alloca(3 * w); cinfo.err = jpeg_std_error(&(jerr.pub)); jerr.pub.error_exit = _eet_image_jpeg_error_exit_cb; jerr.pub.emit_message = _eet_image_jpeg_emit_message_cb; jerr.pub.output_message = _eet_image_jpeg_output_message_cb; if (setjmp(jerr.setjmp_buffer)) { return NULL; } jpeg_create_compress(&cinfo); if (eet_jpeg_membuf_dst(&cinfo, &dst, &sz)) { jpeg_destroy_compress(&cinfo); return NULL; } cinfo.image_width = w; cinfo.image_height = h; cinfo.input_components = 1; cinfo.in_color_space = JCS_GRAYSCALE; jpeg_set_defaults(&cinfo); jpeg_set_quality(&cinfo, quality, TRUE); if (quality >= 90) { cinfo.comp_info[0].h_samp_factor = 1; cinfo.comp_info[0].v_samp_factor = 1; cinfo.comp_info[1].h_samp_factor = 1; cinfo.comp_info[1].v_samp_factor = 1; cinfo.comp_info[2].h_samp_factor = 1; cinfo.comp_info[2].v_samp_factor = 1; } jpeg_start_compress(&cinfo, TRUE); while (cinfo.next_scanline < cinfo.image_height) { unsigned int i, j; ptr = ((const int *)data) + cinfo.next_scanline * w; /* convert scaline from ARGB to RGB packed */ for (j = 0, i = 0; i < w; i++) { buf[j++] = ((*ptr) >> 24) & 0xff; ptr++; } jbuf = (JSAMPROW *)(&buf); jpeg_write_scanlines(&cinfo, jbuf, 1); } jpeg_finish_compress(&cinfo); jpeg_destroy_compress(&cinfo); *size = sz; return dst; } static inline void * _eet_data_image_rgb_encode(const void *data, unsigned int w, unsigned int h, int quality, int *size) { struct jpeg_compress_struct cinfo; struct _JPEG_error_mgr jerr; const int *ptr; void *d = NULL; size_t sz = 0; JSAMPROW *jbuf; unsigned int *grey; unsigned char *buf; /* Try to encode this buffer as GRY8 or AGRY88. It is difficult to know if a different approach would have payed of, but for now I do walk and copy the pixels as long as they are grey. If I manage to copy them up to the end, I will be able to encode them as a GRY8 texture. */ grey = malloc(sizeof (int) * w * h); if (grey) { const unsigned int *pixels = data; unsigned int i; for (i = 0; i < w * h; i++) { uint8_t r, g, b; r = R_VAL(&pixels[i]); g = G_VAL(&pixels[i]); b = B_VAL(&pixels[i]); if (!(r == g && g == b)) break ; grey[i] = r << 24; } if (i == w * h) { d = _eet_data_image_grey_encode(grey, w, h, quality, size); free(grey); return d; } free(grey); } buf = alloca(3 * w); memset(&cinfo, 0, sizeof (struct jpeg_compress_struct)); cinfo.err = jpeg_std_error(&(jerr.pub)); jerr.pub.error_exit = _eet_image_jpeg_error_exit_cb; jerr.pub.emit_message = _eet_image_jpeg_emit_message_cb; jerr.pub.output_message = _eet_image_jpeg_output_message_cb; if (setjmp(jerr.setjmp_buffer)) return NULL; jpeg_create_compress(&cinfo); if (eet_jpeg_membuf_dst(&cinfo, &d, &sz)) { jpeg_destroy_compress(&cinfo); return NULL; } cinfo.image_width = w; cinfo.image_height = h; cinfo.input_components = 3; cinfo.in_color_space = JCS_RGB; cinfo.optimize_coding = FALSE; cinfo.dct_method = JDCT_ISLOW; // JDCT_FLOAT JDCT_IFAST(quality loss) if (quality < 60) cinfo.dct_method = JDCT_IFAST; jpeg_set_defaults(&cinfo); jpeg_set_quality(&cinfo, quality, TRUE); if (quality >= 90) { cinfo.comp_info[0].h_samp_factor = 1; cinfo.comp_info[0].v_samp_factor = 1; cinfo.comp_info[1].h_samp_factor = 1; cinfo.comp_info[1].v_samp_factor = 1; cinfo.comp_info[2].h_samp_factor = 1; cinfo.comp_info[2].v_samp_factor = 1; } jpeg_start_compress(&cinfo, TRUE); while (cinfo.next_scanline < cinfo.image_height) { unsigned int i, j; /* convert scaline from ARGB to RGB packed */ ptr = ((const int *)data) + cinfo.next_scanline * w; for (j = 0, i = 0; i < w; i++) { buf[j++] = ((*ptr) >> 16) & 0xff; buf[j++] = ((*ptr) >> 8) & 0xff; buf[j++] = ((*ptr)) & 0xff; ptr++; } jbuf = (JSAMPROW *)(&buf); jpeg_write_scanlines(&cinfo, jbuf, 1); } jpeg_finish_compress(&cinfo); jpeg_destroy_compress(&cinfo); *size = sz; return d; } static void * eet_data_image_jpeg_convert(int *size, const void *data, unsigned int w, unsigned int h, int alpha EINA_UNUSED, int quality) { return _eet_data_image_rgb_encode(data, w, h, quality, size); } static void * eet_data_image_jpeg_alpha_convert(int *size, const void *data, unsigned int w, unsigned int h, int alpha EINA_UNUSED, int quality) { unsigned char *d1, *d2; unsigned char *d; int *header; int sz1, sz2; _eet_image_endian_check(); d1 = _eet_data_image_rgb_encode(data, w, h, quality, &sz1); d2 = _eet_data_image_grey_encode(data, w, h, quality, &sz2); if (!d1 || !d2) { free(d1); free(d2); return NULL; } d = malloc(12 + sz1 + sz2); if (!d) { free(d1); free(d2); return NULL; } header = (int *)d; header[0] = 0xbeeff00d; header[1] = sz1; header[2] = sz2; _eet_image_endian_swap(header, 3); memcpy(d + 12, d1, sz1); memcpy(d + 12 + sz1, d2, sz2); free(d1); free(d2); *size = 12 + sz1 + sz2; return d; } EAPI int eet_data_image_write_cipher(Eet_File *ef, const char *name, const char *cipher_key, const void *data, unsigned int w, unsigned int h, int alpha, int comp, int quality, Eet_Image_Encoding lossy) { void *d = NULL; int size = 0; d = eet_data_image_encode(data, &size, w, h, alpha, comp, quality, lossy); if (d) { int v; v = eet_write_cipher(ef, name, d, size, 0, cipher_key); free(d); return v; } return 0; } EAPI int eet_data_image_write(Eet_File *ef, const char *name, const void *data, unsigned int w, unsigned int h, int alpha, int comp, int quality, Eet_Image_Encoding lossy) { return eet_data_image_write_cipher(ef, name, NULL, data, w, h, alpha, comp, quality, lossy); } EAPI void * eet_data_image_read_cipher(Eet_File *ef, const char *name, const char *cipher_key, unsigned int *w, unsigned int *h, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { unsigned int *d = NULL; void *data = NULL; int free_data = 0; int size; if (!cipher_key) data = (void *)eet_read_direct(ef, name, &size); if (!data) { data = eet_read_cipher(ef, name, &size, cipher_key); free_data = 1; if (!data) return NULL; } d = eet_data_image_decode(data, size, w, h, alpha, comp, quality, lossy); if (free_data) free(data); return d; } EAPI void * eet_data_image_read(Eet_File *ef, const char *name, unsigned int *w, unsigned int *h, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { return eet_data_image_read_cipher(ef, name, NULL, w, h, alpha, comp, quality, lossy); } EAPI int eet_data_image_read_to_cspace_surface_cipher(Eet_File *ef, const char *name, const char *cipher_key, unsigned int src_x, unsigned int src_y, unsigned int *d, unsigned int w, unsigned int h, unsigned int row_stride, Eet_Colorspace cspace, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { void *data = NULL; int free_data = 0; int res = 1; int size; if (!cipher_key) data = (void *)eet_read_direct(ef, name, &size); if (!data) { data = eet_read_cipher(ef, name, &size, cipher_key); free_data = 1; if (!data) return 0; } res = eet_data_image_decode_to_cspace_surface_cipher(data, NULL, size, src_x, src_y, d, w, h, row_stride, cspace, alpha, comp, quality, lossy); if (free_data) free(data); return res; } EAPI int eet_data_image_read_to_surface_cipher(Eet_File *ef, const char *name, const char *cipher_key, unsigned int src_x, unsigned int src_y, unsigned int *d, unsigned int w, unsigned int h, unsigned int row_stride, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { return eet_data_image_read_to_cspace_surface_cipher(ef, name, cipher_key, src_x, src_y, d, w, h, row_stride, EET_COLORSPACE_ARGB8888, alpha, comp, quality, lossy); } EAPI int eet_data_image_read_to_surface(Eet_File *ef, const char *name, unsigned int src_x, unsigned int src_y, unsigned int *d, unsigned int w, unsigned int h, unsigned int row_stride, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { return eet_data_image_read_to_surface_cipher(ef, name, NULL, src_x, src_y, d, w, h, row_stride, alpha, comp, quality, lossy); } EAPI int eet_data_image_header_read_cipher(Eet_File *ef, const char *name, const char *cipher_key, unsigned int *w, unsigned int *h, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { void *data = NULL; int size = 0; int free_data = 0; int d; if (!cipher_key) data = (void *)eet_read_direct(ef, name, &size); if (!data) { data = eet_read_cipher(ef, name, &size, cipher_key); free_data = 1; if (!data) return 0; } d = eet_data_image_header_decode(data, size, w, h, alpha, comp, quality, lossy); if (free_data) free(data); return d; } EAPI int eet_data_image_header_read(Eet_File *ef, const char *name, unsigned int *w, unsigned int *h, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { return eet_data_image_header_read_cipher(ef, name, NULL, w, h, alpha, comp, quality, lossy); } EAPI void * eet_data_image_encode_cipher(const void *data, const char *cipher_key, unsigned int w, unsigned int h, int alpha, int comp, int quality, Eet_Image_Encoding lossy, int *size_ret) { void *d = NULL; void *ciphered_d = NULL; unsigned int ciphered_sz = 0; int size = 0; switch (lossy) { case EET_IMAGE_LOSSLESS: if (comp > 0) d = eet_data_image_lossless_compressed_convert(&size, data, w, h, alpha, comp); /* eet_data_image_lossless_compressed_convert will refuse to compress something if the result is bigger than the entry. */ if (comp <= 0 || !d) d = eet_data_image_lossless_convert(&size, data, w, h, alpha); break; case EET_IMAGE_JPEG: if (!alpha) d = eet_data_image_jpeg_convert(&size, data, w, h, alpha, quality); else d = eet_data_image_jpeg_alpha_convert(&size, data, w, h, alpha, quality); break; case EET_IMAGE_ETC1: case EET_IMAGE_ETC2_RGB: if (alpha) abort(); // fallthrough case EET_IMAGE_ETC2_RGBA: case EET_IMAGE_ETC1_ALPHA: d = eet_data_image_etc1_compressed_convert(&size, data, w, h, quality, comp, lossy); break; default: abort(); } if (cipher_key) { if(!eet_cipher(d, size, cipher_key, strlen(cipher_key), &ciphered_d, &ciphered_sz)) { if (d) free(d); d = ciphered_d; size = ciphered_sz; } else if (ciphered_d) free(ciphered_d); } if (size_ret) *size_ret = size; return d; } EAPI void * eet_data_image_encode(const void *data, int *size_ret, unsigned int w, unsigned int h, int alpha, int comp, int quality, Eet_Image_Encoding lossy) { return eet_data_image_encode_cipher(data, NULL, w, h, alpha, comp, quality, lossy, size_ret); } static const Eet_Colorspace _eet_etc1_colorspace[] = { EET_COLORSPACE_ETC1, EET_COLORSPACE_ARGB8888 }; static const Eet_Colorspace _eet_etc1_alpha_colorspace[] = { EET_COLORSPACE_ETC1_ALPHA, EET_COLORSPACE_ARGB8888 }; static const Eet_Colorspace _eet_etc2_rgb_colorspace[] = { EET_COLORSPACE_RGB8_ETC2, EET_COLORSPACE_ARGB8888 }; static const Eet_Colorspace _eet_etc2_rgba_colorspace[] = { EET_COLORSPACE_RGBA8_ETC2_EAC, EET_COLORSPACE_ARGB8888 }; static const Eet_Colorspace _eet_gry8_alpha_colorspace[] = { EET_COLORSPACE_AGRY88, EET_COLORSPACE_ARGB8888 }; static int eet_data_image_header_advance_decode_cipher(const void *data, const char *cipher_key, int size, unsigned int *w, unsigned int *h, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy, const Eet_Colorspace **cspaces) { int header[8]; void *deciphered_d = NULL; unsigned int deciphered_sz = 0; int r = 0; if (cipher_key) { if (!eet_decipher(data, size, cipher_key, strlen(cipher_key), &deciphered_d, &deciphered_sz)) { data = deciphered_d; size = deciphered_sz; } else { free(deciphered_d); deciphered_d = NULL; } } _eet_image_endian_check(); if (size < 32) goto on_error; memcpy(header, data, 32); _eet_image_endian_swap(header, 8); if ((unsigned)header[0] == 0xac1dfeed) { int iw, ih, al, cp; iw = header[1]; ih = header[2]; al = header[3]; cp = header[4]; if ((iw < 1) || (ih < 1) || (iw > 8192) || (ih > 8192)) goto on_error; if ((cp == 0) && (size < ((iw * ih * 4) + 32))) goto on_error; if (w) *w = iw; if (h) *h = ih; if (alpha) *alpha = al ? 1 : 0; if (comp) *comp = cp; if (lossy) *lossy = EET_IMAGE_LOSSLESS; if (quality) *quality = 100; r = 1; } else if ((unsigned)header[0] == 0xbeeff00d) { unsigned int iw = 0, ih = 0; unsigned const char *dt; int sz1, sz2; int ok; sz1 = header[1]; sz2 = header[2]; if ((sz1 <= 0) || (sz2 <= 0) || ((sz1 + sz2) > (size - 12))) goto on_error; dt = data; dt += 12; ok = eet_data_image_jpeg_header_decode(dt, sz1, &iw, &ih, cspaces); if (ok) { if (w) *w = iw; if (h) *h = ih; if (alpha) *alpha = 1; if (comp) *comp = 0; if (lossy) *lossy = EET_IMAGE_JPEG; if (quality) *quality = 75; r = 1; } } else if (!strncmp(data, "TGV1", 4)) { const char *m = data; // We only use Emile for decoding the actual data, seems simpler this way. if (w) *w = ntohl(*((unsigned int*) &(m[OFFSET_WIDTH]))); if (h) *h = ntohl(*((unsigned int*) &(m[OFFSET_HEIGHT]))); if (comp) *comp = m[OFFSET_OPTIONS] & 0x1; switch (m[OFFSET_ALGORITHM] & 0xFF) { case 0: if (lossy) *lossy = EET_IMAGE_ETC1; if (alpha) *alpha = EINA_FALSE; if (cspaces) *cspaces = _eet_etc1_colorspace; break; case 1: if (lossy) *lossy = EET_IMAGE_ETC2_RGB; if (alpha) *alpha = EINA_FALSE; if (cspaces) *cspaces = _eet_etc2_rgb_colorspace; break; case 2: if (alpha) *alpha = EINA_TRUE; if (lossy) *lossy = EET_IMAGE_ETC2_RGBA; if (cspaces) *cspaces = _eet_etc2_rgba_colorspace; break; case 3: if (alpha) *alpha = EINA_TRUE; if (lossy) *lossy = EET_IMAGE_ETC1_ALPHA; if (cspaces) *cspaces = _eet_etc1_alpha_colorspace; break; default: goto on_error; } if (quality) *quality = 50; r = 1; } else { unsigned int iw = 0, ih = 0; int ok; ok = eet_data_image_jpeg_header_decode(data, size, &iw, &ih, cspaces); if (ok) { if (w) *w = iw; if (h) *h = ih; if (alpha) *alpha = 0; if (comp) *comp = 0; if (lossy) *lossy = EET_IMAGE_JPEG; if (quality) *quality = 75; if (cspaces && *cspaces) { if ((*cspaces)[0] == EMILE_COLORSPACE_GRY8) *cspaces = _eet_gry8_alpha_colorspace; } r = 1; } } on_error: free(deciphered_d); return r; } EAPI int eet_data_image_header_decode_cipher(const void *data, const char *cipher_key, int size, unsigned int *w, unsigned int *h, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { return eet_data_image_header_advance_decode_cipher(data, cipher_key, size, w, h, alpha, comp, quality, lossy, NULL); } EAPI int eet_data_image_colorspace_get(Eet_File *ef, const char *name, const char *cipher_key, const Eet_Colorspace **cspaces) { void *data = NULL; int size = 0; int free_data = 0; int d; if (!cipher_key) data = (void *)eet_read_direct(ef, name, &size); if (!data) { data = eet_read_cipher(ef, name, &size, cipher_key); free_data = 1; if (!data) return 0; } d = eet_data_image_header_advance_decode_cipher(data, NULL, size, NULL, NULL, NULL, NULL, NULL, NULL, cspaces); if (free_data) free(data); return d; } EAPI int eet_data_image_header_decode(const void *data, int size, unsigned int *w, unsigned int *h, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { return eet_data_image_header_decode_cipher(data, NULL, size, w, h, alpha, comp, quality, lossy); } static void _eet_data_image_copy_buffer(const unsigned int *src, unsigned int src_x, unsigned int src_y, unsigned int src_w, unsigned int *dst, unsigned int w, unsigned int h, unsigned int row_stride) { src += src_x + src_y * src_w; if (row_stride == src_w * 4 && w == src_w) memcpy(dst, src, row_stride * h); else { unsigned int *over = dst; unsigned int y; for (y = 0; y < h; ++y, src += src_w, over += row_stride) memcpy(over, src, w * 4); } } static int _eet_data_image_decode_inside(const void *data, int size, unsigned int src_x, unsigned int src_y, unsigned int src_w, unsigned int src_h, /* useful for fast path detection */ unsigned int *d, unsigned int w, unsigned int h, unsigned int row_stride, int alpha, int comp, int quality, Eet_Image_Encoding lossy, Eet_Colorspace cspace) { _eet_image_endian_check(); if (lossy == EET_IMAGE_LOSSLESS && quality == 100) { unsigned int *body; body = ((unsigned int *)data) + 8; if (!comp) _eet_data_image_copy_buffer(body, src_x, src_y, src_w, d, w, h, row_stride); else { Eina_Binbuf *in; Eina_Binbuf *out; in = eina_binbuf_manage_read_only_new_length((const unsigned char *) body, size - 8 * sizeof (int)); if (!in) return 0; if ((src_h == h) && (src_w == w) && (row_stride == src_w * 4)) { out = eina_binbuf_manage_read_only_new_length((void*) d, w * h * 4); if (!emile_expand(in, out, eet_2_emile_compressor(comp))) { eina_binbuf_free(in); eina_binbuf_free(out); return 0; } } else { /* FIXME: This could create a huge alloc. So compressed data and tile could not always work.*/ out = emile_decompress(in, eet_2_emile_compressor(comp), w * h * 4); eina_binbuf_free(in); if (!out) return 0; _eet_data_image_copy_buffer((const unsigned int *) eina_binbuf_string_get(out), src_x, src_y, src_w, d, w, h, row_stride); eina_binbuf_free(out); } } /* Fix swapiness. */ _eet_image_endian_swap(d, w * h); } else if (comp == 0 && lossy == EET_IMAGE_JPEG) { if (alpha) { unsigned const char *dt; int header[8]; int sz1, sz2; memcpy(header, data, 32); _eet_image_endian_swap(header, 8); sz1 = header[1]; sz2 = header[2]; if ((sz1 <= 0) || (sz2 <= 0) || ((sz1 + sz2) > (size - 12))) { return 0; } dt = data; dt += 12; if (eet_data_image_jpeg_rgb_decode(dt, sz1, src_x, src_y, d, w, h, cspace)) { dt += sz1; if (!eet_data_image_jpeg_alpha_decode(dt, sz2, src_x, src_y, d, w, h, cspace)) return 0; } } else if (!eet_data_image_jpeg_rgb_decode(data, size, src_x, src_y, d, w, h, cspace)) return 0; } else if ((lossy == EET_IMAGE_ETC1) || (lossy == EET_IMAGE_ETC2_RGB) || (lossy == EET_IMAGE_ETC2_RGBA) || (lossy == EET_IMAGE_ETC1_ALPHA)) { return eet_data_image_etc2_decode(data, size, d, src_x, src_y, src_w, src_h, alpha, cspace, lossy); } else abort(); return 1; } EAPI void * eet_data_image_decode_cipher(const void *data, const char *cipher_key, int size, unsigned int *w, unsigned int *h, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { unsigned int *d = NULL; unsigned int iw, ih; int ialpha, icompress, iquality; Eet_Image_Encoding ilossy; void *deciphered_d = NULL; unsigned int deciphered_sz = 0; if (cipher_key) { if (!eet_decipher(data, size, cipher_key, strlen(cipher_key), &deciphered_d, &deciphered_sz)) { data = deciphered_d; size = deciphered_sz; } else if (deciphered_d) free(deciphered_d); } /* All check are done during header decode, this simplify the code a lot. */ if (!eet_data_image_header_decode(data, size, &iw, &ih, &ialpha, &icompress, &iquality, &ilossy)) return NULL; d = malloc(iw * ih * 4); if (!d) return NULL; if (!_eet_data_image_decode_inside(data, size, 0, 0, iw, ih, d, iw, ih, iw * 4, ialpha, icompress, iquality, ilossy, EET_COLORSPACE_ARGB8888)) { free(d); return NULL; } if (w) *w = iw; if (h) *h = ih; if (alpha) *alpha = ialpha; if (comp) *comp = icompress; if (quality) *quality = iquality; if (lossy) *lossy = ilossy; return d; } EAPI void * eet_data_image_decode(const void *data, int size, unsigned int *w, unsigned int *h, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { return eet_data_image_decode_cipher(data, NULL, size, w, h, alpha, comp, quality, lossy); } EAPI int eet_data_image_decode_to_cspace_surface_cipher(const void *data, const char *cipher_key, int size, unsigned int src_x, unsigned int src_y, unsigned int *d, unsigned int w, unsigned int h, unsigned int row_stride, Eet_Colorspace cspace, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { unsigned int iw, ih; int ialpha, icompress, iquality; Eet_Image_Encoding ilossy; const Eet_Colorspace *cspaces = NULL; void *deciphered_d = NULL; unsigned int deciphered_sz = 0; if (cipher_key) { if (!eet_decipher(data, size, cipher_key, strlen(cipher_key), &deciphered_d, &deciphered_sz)) { data = deciphered_d; size = deciphered_sz; } else if (deciphered_d) free(deciphered_d); } /* All check are done during header decode, this simplify the code a lot. */ if (!eet_data_image_header_advance_decode_cipher(data, NULL, size, &iw, &ih, &ialpha, &icompress, &iquality, &ilossy, &cspaces)) return 0; if (!d) return 0; if (cspaces) { unsigned int i; for (i = 0; cspaces[i] != EET_COLORSPACE_ARGB8888; i++) if (cspaces[i] == cspace) break ; if (cspaces[i] != cspace) return 0; } else { if ((cspaces != EET_COLORSPACE_ARGB8888) || (cspace == EET_COLORSPACE_ARGB8888 && w * 4 > row_stride)) return 0; } if (w > iw || h > ih) return 0; if (!_eet_data_image_decode_inside(data, size, src_x, src_y, iw, ih, d, w, h, row_stride, ialpha, icompress, iquality, ilossy, cspace)) return 0; if (alpha) *alpha = ialpha; if (comp) *comp = icompress; if (quality) *quality = iquality; if (lossy) *lossy = ilossy; return 1; } EAPI int eet_data_image_decode_to_surface_cipher(const void *data, const char *cipher_key, int size, unsigned int src_x, unsigned int src_y, unsigned int *d, unsigned int w, unsigned int h, unsigned int row_stride, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { return eet_data_image_decode_to_cspace_surface_cipher(data, cipher_key, size, src_x, src_y, d, w, h, row_stride, EET_COLORSPACE_ARGB8888, alpha, comp, quality, lossy); } EAPI int eet_data_image_decode_to_surface(const void *data, int size, unsigned int src_x, unsigned int src_y, unsigned int *d, unsigned int w, unsigned int h, unsigned int row_stride, int *alpha, int *comp, int *quality, Eet_Image_Encoding *lossy) { return eet_data_image_decode_to_surface_cipher(data, NULL, size, src_x, src_y, d, w, h, row_stride, alpha, comp, quality, lossy); }