diff options
Diffstat (limited to 'graphics/jpeg/files/patch-transupp.h')
| -rw-r--r-- | graphics/jpeg/files/patch-transupp.h | 199 |
1 files changed, 22 insertions, 177 deletions
diff --git a/graphics/jpeg/files/patch-transupp.h b/graphics/jpeg/files/patch-transupp.h index c8e1941f3fc4..2073ae3c8775 100644 --- a/graphics/jpeg/files/patch-transupp.h +++ b/graphics/jpeg/files/patch-transupp.h @@ -1,191 +1,36 @@ ---- transupp.h.orig Wed Jul 23 22:39:12 1997 -+++ transupp.h Fri Jun 4 15:07:31 2004 -@@ -1,7 +1,7 @@ - /* - * transupp.h - * -- * Copyright (C) 1997, Thomas G. Lane. -+ * Copyright (C) 1997-2001, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * -@@ -22,32 +22,6 @@ - #define TRANSFORMS_SUPPORTED 1 /* 0 disables transform code */ - #endif - --/* Short forms of external names for systems with brain-damaged linkers. */ -- --#ifdef NEED_SHORT_EXTERNAL_NAMES --#define jtransform_request_workspace jTrRequest --#define jtransform_adjust_parameters jTrAdjust --#define jtransform_execute_transformation jTrExec --#define jcopy_markers_setup jCMrkSetup --#define jcopy_markers_execute jCMrkExec --#endif /* NEED_SHORT_EXTERNAL_NAMES */ -- -- --/* -- * Codes for supported types of image transformations. -- */ -- --typedef enum { -- JXFORM_NONE, /* no transformation */ -- JXFORM_FLIP_H, /* horizontal flip */ -- JXFORM_FLIP_V, /* vertical flip */ -- JXFORM_TRANSPOSE, /* transpose across UL-to-LR axis */ -- JXFORM_TRANSVERSE, /* transpose across UR-to-LL axis */ -- JXFORM_ROT_90, /* 90-degree clockwise rotation */ -- JXFORM_ROT_180, /* 180-degree rotation */ +--- transupp.h.orig 2003-09-21 23:01:30.000000000 +0200 ++++ transupp.h 2009-07-01 08:54:49.000000000 +0200 +@@ -96,7 +96,8 @@ + JXFORM_TRANSVERSE, /* transpose across UR-to-LL axis */ + JXFORM_ROT_90, /* 90-degree clockwise rotation */ + JXFORM_ROT_180, /* 180-degree rotation */ - JXFORM_ROT_270 /* 270-degree clockwise (or 90 ccw) */ --} JXFORM_CODE; -- ++ JXFORM_ROT_270, /* 270-degree clockwise (or 90 ccw) */ ++ JXFORM_DROP /* drop */ + } JXFORM_CODE; + /* - * Although rotating and flipping data expressed as DCT coefficients is not - * hard, there is an asymmetry in the JPEG format specification for images -@@ -75,6 +49,19 @@ - * (For example, -rot 270 -trim trims only the bottom edge, but -rot 90 -trim - * followed by -rot 180 -trim trims both edges.) - * -+ * We also offer a lossless-crop option, which discards data outside a given -+ * image region but losslessly preserves what is inside. Like the rotate and -+ * flip transforms, lossless crop is restricted by the JPEG format: the upper -+ * left corner of the selected region must fall on an iMCU boundary. If this -+ * does not hold for the given crop parameters, we silently move the upper left -+ * corner up and/or left to make it so, simultaneously increasing the region -+ * dimensions to keep the lower right crop corner unchanged. (Thus, the -+ * output image covers at least the requested region, but may cover more.) -+ * -+ * If both crop and a rotate/flip transform are requested, the crop is applied -+ * last --- that is, the crop region is specified in terms of the destination -+ * image. -+ * - * We also offer a "force to grayscale" option, which simply discards the - * chrominance channels of a YCbCr image. This is lossless in the sense that - * the luminance channel is preserved exactly. It's not the same kind of -@@ -83,20 +70,96 @@ - * be aware of the option to know how many components to work on. - */ +@@ -136,6 +137,10 @@ + JDIMENSION crop_yoffset; /* Y offset of selected region */ + JCROP_CODE crop_yoffset_set; /* (negative measures from bottom edge) */ -+ -+/* Short forms of external names for systems with brain-damaged linkers. */ -+ -+#ifdef NEED_SHORT_EXTERNAL_NAMES -+#define jtransform_parse_crop_spec jTrParCrop -+#define jtransform_request_workspace jTrRequest -+#define jtransform_adjust_parameters jTrAdjust -+#define jtransform_execute_transform jTrExec -+#define jtransform_perfect_transform jTrPerfect -+#define jcopy_markers_setup jCMrkSetup -+#define jcopy_markers_execute jCMrkExec -+#endif /* NEED_SHORT_EXTERNAL_NAMES */ -+ -+ -+/* -+ * Codes for supported types of image transformations. -+ */ -+ -+typedef enum { -+ JXFORM_NONE, /* no transformation */ -+ JXFORM_FLIP_H, /* horizontal flip */ -+ JXFORM_FLIP_V, /* vertical flip */ -+ JXFORM_TRANSPOSE, /* transpose across UL-to-LR axis */ -+ JXFORM_TRANSVERSE, /* transpose across UR-to-LL axis */ -+ JXFORM_ROT_90, /* 90-degree clockwise rotation */ -+ JXFORM_ROT_180, /* 180-degree rotation */ -+ JXFORM_ROT_270, /* 270-degree clockwise (or 90 ccw) */ -+ JXFORM_DROP /* drop */ -+} JXFORM_CODE; -+ -+/* -+ * Codes for crop parameters, which can individually be unspecified, -+ * positive, or negative. (Negative width or height makes no sense, though.) -+ */ -+ -+typedef enum { -+ JCROP_UNSET, -+ JCROP_POS, -+ JCROP_NEG -+} JCROP_CODE; -+ -+/* -+ * Transform parameters struct. -+ * NB: application must not change any elements of this struct after -+ * calling jtransform_request_workspace. -+ */ -+ - typedef struct { - /* Options: set by caller */ - JXFORM_CODE transform; /* image transform operator */ -+ boolean perfect; /* if TRUE, fail if partial MCUs are requested */ - boolean trim; /* if TRUE, trim partial MCUs as needed */ - boolean force_grayscale; /* if TRUE, convert color image to grayscale */ -+ boolean crop; /* if TRUE, crop source image */ -+ -+ /* Crop parameters: application need not set these unless crop is TRUE. -+ * These can be filled in by jtransform_parse_crop_spec(). -+ */ -+ JDIMENSION crop_width; /* Width of selected region */ -+ JCROP_CODE crop_width_set; -+ JDIMENSION crop_height; /* Height of selected region */ -+ JCROP_CODE crop_height_set; -+ JDIMENSION crop_xoffset; /* X offset of selected region */ -+ JCROP_CODE crop_xoffset_set; /* (negative measures from right edge) */ -+ JDIMENSION crop_yoffset; /* Y offset of selected region */ -+ JCROP_CODE crop_yoffset_set; /* (negative measures from bottom edge) */ -+ + /* Drop parameters: set by caller for drop request */ + j_decompress_ptr drop_ptr; + jvirt_barray_ptr * drop_coef_arrays; - ++ /* Internal workspace: caller should not touch these */ int num_components; /* # of components in workspace */ jvirt_barray_ptr * workspace_coef_arrays; /* workspace for transformations */ -+ JDIMENSION output_width; /* cropped destination dimensions */ -+ JDIMENSION output_height; -+ JDIMENSION x_crop_offset; /* destination crop offsets measured in iMCUs */ -+ JDIMENSION y_crop_offset; -+ JDIMENSION drop_width; /* drop dimensions measured in iMCUs */ +@@ -143,6 +148,8 @@ + JDIMENSION output_height; + JDIMENSION x_crop_offset; /* destination crop offsets measured in iMCUs */ + JDIMENSION y_crop_offset; ++ JDIMENSION drop_width; /* drop dimensions measured in iMCUs */ + JDIMENSION drop_height; -+ int max_h_samp_factor; /* destination iMCU size */ -+ int max_v_samp_factor; + int max_h_samp_factor; /* destination iMCU size */ + int max_v_samp_factor; } jpeg_transform_info; - - - #if TRANSFORMS_SUPPORTED - -+/* Parse a crop specification (written in X11 geometry style) */ -+EXTERN(boolean) jtransform_parse_crop_spec -+ JPP((jpeg_transform_info *info, const char *spec)); - /* Request any required workspace */ - EXTERN(void) jtransform_request_workspace - JPP((j_decompress_ptr srcinfo, jpeg_transform_info *info)); -@@ -106,10 +169,24 @@ - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info)); - /* Execute the actual transformation, if any */ --EXTERN(void) jtransform_execute_transformation -+EXTERN(void) jtransform_execute_transform - JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info)); -+/* Determine whether lossless transformation is perfectly -+ * possible for a specified image and transformation. -+ */ -+EXTERN(boolean) jtransform_perfect_transform -+ JPP((JDIMENSION image_width, JDIMENSION image_height, -+ int MCU_width, int MCU_height, -+ JXFORM_CODE transform)); -+ -+/* jtransform_execute_transform used to be called -+ * jtransform_execute_transformation, but some compilers complain about -+ * routine names that long. This macro is here to avoid breaking any -+ * old source code that uses the original name... -+ */ -+#define jtransform_execute_transformation jtransform_execute_transform - - #endif /* TRANSFORMS_SUPPORTED */ - -@@ -121,7 +198,8 @@ +@@ -191,7 +198,8 @@ typedef enum { JCOPYOPT_NONE, /* copy no optional markers */ JCOPYOPT_COMMENTS, /* copy only comment (COM) markers */ |