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authortobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2008-06-14 18:24:43 +0000
committertobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2008-06-14 18:24:43 +0000
commit68b29a08bc21b15b923b3430fbc41baedba73883 (patch)
tree23005644b6e4ec95914fd9e51c23735715f1ec5f /Game/Code/lib
parentbcec80f4bc1a7b299f37b49d463494d6817f4496 (diff)
downloadusdx-68b29a08bc21b15b923b3430fbc41baedba73883.tar.gz
usdx-68b29a08bc21b15b923b3430fbc41baedba73883.tar.xz
usdx-68b29a08bc21b15b923b3430fbc41baedba73883.zip
Removed some "const" parameter modifiers for external function declarations. Pascal has no equivalent to C's "pointer to constant type" const modifier. E.g. "const char* cstr" is not equivalent to "const cstr: PChar". This is because the first is a variable pointer to a constant type and the latter is a constant pointer to a variable type. This means contrary to the C version, in the incorrect pascal version the string can be changed. So it is like a false friend in this example, although "cstr: PChar" is not correct either, as the string can be changed too.
Also note that "var myvar: TMyType" is always passed as reference (a pointer is used for this, so it is equivalent to "myvar: PMyType"). This also normally applies to "const myvar: TMyType". But not if the type-size is < 4byte or the function is declared as stdcall or cdecl. In these cases the variable is passed on the stack and not as a pointer. So NEVER replace a C declaration "const my_type_t* my_var" with "const my_var: TMy_type" as it might fail. Use the var modifier instead. git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1148 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to 'Game/Code/lib')
-rw-r--r--Game/Code/lib/ffmpeg/avcodec.pas68
-rw-r--r--Game/Code/lib/ffmpeg/avformat.pas2
-rw-r--r--Game/Code/lib/ffmpeg/avio.pas24
3 files changed, 47 insertions, 47 deletions
diff --git a/Game/Code/lib/ffmpeg/avcodec.pas b/Game/Code/lib/ffmpeg/avcodec.pas
index 9de520c4..42bc4d9e 100644
--- a/Game/Code/lib/ffmpeg/avcodec.pas
+++ b/Game/Code/lib/ffmpeg/avcodec.pas
@@ -1146,7 +1146,7 @@ type
* @param offset offset into the AVFrame.data from which the slice should be read
*)
draw_horiz_band: procedure (s: PAVCodecContext;
- {const} src: PAVFrame; offset: PQuadIntArray;
+ src: {const} PAVFrame; offset: PQuadIntArray;
y: integer; type_: integer; height: integer); cdecl;
(* audio only *)
@@ -1425,7 +1425,7 @@ type
* - encoding: Set by user
* - decoding: unused
*)
- rc_eq: pchar; {const char*}
+ rc_eq: {const} pchar;
(**
* maximum bitrate
@@ -1698,7 +1698,7 @@ type
* - encoding: unused
* - decoding: Set by user, if not set the native format will be chosen.
*)
- get_format: function (s: PAVCodecContext; {const} fmt: PAVPixelFormat): TAVPixelFormat; cdecl;
+ get_format: function (s: PAVCodecContext; fmt: {const} PAVPixelFormat): TAVPixelFormat; cdecl;
(**
* DTG active format information (additional aspect ratio
@@ -2319,7 +2319,7 @@ type
encode: function (avctx: PAVCodecContext; buf: pchar; buf_size: integer; data: pointer): integer; cdecl;
close: function (avctx: PAVCodecContext): integer; cdecl;
decode: function (avctx: PAVCodecContext; outdata: pointer; outdata_size: PInteger;
- {const} buf: pchar; buf_size: integer): integer; cdecl;
+ buf: {const} pchar; buf_size: integer): integer; cdecl;
(**
* Codec capabilities.
* see CODEC_CAP_*
@@ -2331,17 +2331,17 @@ type
* Will be called when seeking
*)
flush: procedure (avctx: PAVCodecContext); cdecl;
- {const} supported_framerates: PAVRational; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
- {const} pix_fmts: PAVPixelFormat; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
+ supported_framerates: {const} PAVRational; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
+ pix_fmts: {const} PAVPixelFormat; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
{$IF LIBAVCODEC_VERSION >= 51055000} // 51.55.0
(**
* Descriptive name for the codec, meant to be more human readable than \p name.
* You \e should use the NULL_IF_CONFIG_SMALL() macro to define it.
*)
- {const} long_name: PChar;
+ long_name: {const} PChar;
{$IFEND}
{$IF LIBAVCODEC_VERSION >= 51056000} // 51.56.0
- {const} supported_samplerates: PInteger; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
+ supported_samplerates: {const} PInteger; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
{$IFEND}
end;
@@ -2435,7 +2435,7 @@ function img_resample_full_init (owidth: integer; oheight: integer;
(**
* @deprecated Use the software scaler (swscale) instead.
*)
-procedure img_resample (s: PImgReSampleContext; output: PAVPicture; {const} input: PAVPicture);
+procedure img_resample (s: PImgReSampleContext; output: PAVPicture; input: {const} PAVPicture);
cdecl; external av__codec; deprecated;
(**
@@ -2487,7 +2487,7 @@ function avpicture_fill (picture: PAVPicture; ptr: pointer;
pix_fmt: TAVPixelFormat; width: integer; height: integer): integer;
cdecl; external av__codec;
-function avpicture_layout ({const} src: PAVPicture; pix_fmt: TAVPixelFormat;
+function avpicture_layout (src: {const} PAVPicture; pix_fmt: TAVPixelFormat;
width: integer; height: integer;
dest: pchar; dest_size: integer): integer;
cdecl; external av__codec;
@@ -2513,7 +2513,7 @@ function avcodec_get_pix_fmt_name(pix_fmt: TAVPixelFormat): pchar;
procedure avcodec_set_dimensions(s: PAVCodecContext; width: integer; height: integer);
cdecl; external av__codec;
-function avcodec_get_pix_fmt(const name: pchar): TAVPixelFormat;
+function avcodec_get_pix_fmt(name: {const} pchar): TAVPixelFormat;
cdecl; external av__codec;
function avcodec_pix_fmt_to_codec_tag(p: TAVPixelFormat): cardinal;
@@ -2597,7 +2597,7 @@ const
* Tell if an image really has transparent alpha values.
* @return ored mask of FF_ALPHA_xxx constants
*)
-function img_get_alpha_info ({const} src: PAVPicture;
+function img_get_alpha_info (src: {const} PAVPicture;
pix_fmt: TAVPixelFormat;
width: integer; height: integer): integer;
cdecl; external av__codec;
@@ -2608,14 +2608,14 @@ function img_get_alpha_info ({const} src: PAVPicture;
* @deprecated Use the software scaler (swscale) instead.
*)
function img_convert (dst: PAVPicture; dst_pix_fmt: TAVPixelFormat;
- const src: PAVPicture; pix_fmt: TAVPixelFormat;
+ src: {const} PAVPicture; pix_fmt: TAVPixelFormat;
width: integer; height: integer): integer;
cdecl; external av__codec; deprecated;
{$IFEND}
(* deinterlace a picture *)
(* deinterlace - if not supported return -1 *)
-function avpicture_deinterlace (dst: PAVPicture; const src: PAVPicture;
+function avpicture_deinterlace (dst: PAVPicture; src: {const} PAVPicture;
pix_fmt: TAVPixelFormat; width: integer; height: integer): integer;
cdecl; external av__codec;
@@ -2760,7 +2760,7 @@ procedure avcodec_align_dimensions(s: PAVCodecContext; width: Pinteger; height:
*)
function avcodec_check_dimensions (av_log_ctx: pointer; w: cardinal; h: cardinal): integer;
cdecl; external av__codec;
-function avcodec_default_get_format(s: PAVCodecContext; const fmt: PAVPixelFormat): TAVPixelFormat;
+function avcodec_default_get_format(s: PAVCodecContext; fmt: {const} PAVPixelFormat): TAVPixelFormat;
cdecl; external av__codec;
function avcodec_thread_init (s: PAVCodecContext; thread_count: integer): integer;
@@ -2808,7 +2808,7 @@ function avcodec_open (avctx: PAVCodecContext; codec: PAVCodec): integer;
*)
function avcodec_decode_audio (avctx: PAVCodecContext; samples: Pword;
var frame_size_ptr: integer;
- {const} buf: pchar; buf_size: integer): integer;
+ buf: {const} pchar; buf_size: integer): integer;
cdecl; external av__codec;
{$IF LIBAVCODEC_VERSION >= 51030000} // 51.30.0
@@ -2850,7 +2850,7 @@ function avcodec_decode_audio (avctx: PAVCodecContext; samples: Pword;
*)
function avcodec_decode_audio2(avctx : PAVCodecContext; samples : PSmallint;
var frame_size_ptr : integer;
- {const} buf: pchar; buf_size: integer): integer;
+ buf: {const} pchar; buf_size: integer): integer;
cdecl; external av__codec;
{$IFEND}
@@ -2887,7 +2887,7 @@ function avcodec_decode_audio2(avctx : PAVCodecContext; samples : PSmallint;
*)
function avcodec_decode_video (avctx: PAVCodecContext; picture: PAVFrame;
var got_picture_ptr: integer;
- {const} buf: PByte; buf_size: integer): integer;
+ buf: {const} PByte; buf_size: integer): integer;
cdecl; external av__codec;
(* Decode a subtitle message. Return -1 if error, otherwise return the
@@ -2895,7 +2895,7 @@ function avcodec_decode_video (avctx: PAVCodecContext; picture: PAVFrame;
* got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. *)
function avcodec_decode_subtitle (avctx: PAVCodecContext; sub: PAVSubtitle;
var got_sub_ptr: integer;
- {const} buf: pchar; buf_size: integer): integer;
+ buf: {const} pchar; buf_size: integer): integer;
cdecl; external av__codec;
function avcodec_parse_frame (avctx: PAVCodecContext; pdata: PPointer;
data_size_ptr: pinteger;
@@ -2923,7 +2923,7 @@ function avcodec_parse_frame (avctx: PAVCodecContext; pdata: PPointer;
* of bytes used to encode the data read from the input buffer.
*)
function avcodec_encode_audio (avctx: PAVCodecContext; buf: PByte;
- buf_size: integer; {const} samples: PWord): integer;
+ buf_size: integer; samples: {const} PWord): integer;
cdecl; external av__codec;
(**
@@ -2945,7 +2945,7 @@ function avcodec_encode_video (avctx: PAVCodecContext; buf: PByte;
buf_size: integer; pict: PAVFrame): integer;
cdecl; external av__codec;
function avcodec_encode_subtitle (avctx: PAVCodecContext; buf: pchar;
- buf_size: integer; {const} sub: PAVSubtitle): integer;
+ buf_size: integer; sub: {const} PAVSubtitle): integer;
cdecl; external av__codec;
function avcodec_close (avctx: PAVCodecContext): integer;
@@ -3040,10 +3040,10 @@ type
priv_data_size: integer;
parser_init: function (s: PAVCodecParserContext): integer; cdecl;
parser_parse: function (s: PAVCodecParserContext; avctx: PAVCodecContext;
- {const} poutbuf: PPointer; poutbuf_size: PInteger;
- {const} buf: pchar; buf_size: integer): integer; cdecl;
+ poutbuf: {const} PPointer; poutbuf_size: PInteger;
+ buf: {const} pchar; buf_size: integer): integer; cdecl;
parser_close: procedure (s: PAVCodecParserContext); cdecl;
- split: function (avctx: PAVCodecContext; {const} buf: pchar;
+ split: function (avctx: PAVCodecContext; buf: {const} pchar;
buf_size: integer): integer; cdecl;
next: PAVCodecParser;
end;
@@ -3070,13 +3070,13 @@ function av_parser_init (codec_id: integer): PAVCodecParserContext;
function av_parser_parse (s: PAVCodecParserContext;
avctx: PAVCodecContext;
poutbuf: PPointer; poutbuf_size: pinteger;
- const buf: pchar; buf_size: integer;
+ buf: {const} pchar; buf_size: integer;
pts: int64; dts: int64): integer;
cdecl; external av__codec;
function av_parser_change (s: PAVCodecParserContext;
avctx: PAVCodecContext;
poutbuf: PPointer; poutbuf_size: PInteger;
- const buf: pchar; buf_size: integer; keyframe: integer): integer;
+ buf: {const} pchar; buf_size: integer; keyframe: integer): integer;
cdecl; external av__codec;
procedure av_parser_close (s: PAVCodecParserContext);
cdecl; external av__codec;
@@ -3173,21 +3173,21 @@ procedure av_realloc_static(ptr: pointer; size: Cardinal);
(**
* Copy image 'src' to 'dst'.
*)
-procedure av_picture_copy(dst: PAVPicture; {const} src: PAVPicture;
+procedure av_picture_copy(dst: PAVPicture; src: {const} PAVPicture;
pix_fmt: integer; width: integer; height: integer);
cdecl; external av__codec;
(**
* Crop image top and left side.
*)
-function av_picture_crop(dst: PAVPicture; {const} src: PAVPicture;
+function av_picture_crop(dst: PAVPicture; src: {const} PAVPicture;
pix_fmt: integer; top_band: integer; left_band: integer): integer;
cdecl; external av__codec;
(**
* Pad image.
*)
-function av_picture_pad(dst: PAVPicture; {const} src: PAVPicture; height: integer; width: integer; pix_fmt: integer;
+function av_picture_pad(dst: PAVPicture; src: {const} PAVPicture; height: integer; width: integer; pix_fmt: integer;
padtop: integer; padbottom: integer; padleft: integer; padright: integer; color: PInteger): integer;
cdecl; external av__codec;
{$IFEND}
@@ -3196,21 +3196,21 @@ function av_picture_pad(dst: PAVPicture; {const} src: PAVPicture; height: intege
(**
* @deprecated Use the software scaler (swscale) instead.
*)
-procedure img_copy (dst: PAVPicture; const src: PAVPicture;
+procedure img_copy (dst: PAVPicture; src: {const} PAVPicture;
pix_fmt: TAVPixelFormat; width: integer; height: integer);
cdecl; external av__codec; deprecated;
(**
* @deprecated Use the software scaler (swscale) instead.
*)
-function img_crop (dst: PAVPicture; const src: PAVPicture;
+function img_crop (dst: PAVPicture; src: {const} PAVPicture;
pix_fmt: TAVPixelFormat; top_band, left_band: integer): integer;
cdecl; external av__codec; deprecated;
(**
* @deprecated Use the software scaler (swscale) instead.
*)
-function img_pad (dst: PAVPicture; const src: PAVPicture; height, width: integer;
+function img_pad (dst: PAVPicture; src: {const} PAVPicture; height, width: integer;
pix_fmt: TAVPixelFormat; padtop, padbottom, padleft, padright: integer;
color: PInteger): integer;
cdecl; external av__codec; deprecated;
@@ -3231,7 +3231,7 @@ function av_xiphlacing(s: PByte; v: Cardinal): Cardinal;
* @param[in,out] height_ptr pointer to the variable which will contain the detected
* frame height value
*)
-function av_parse_video_frame_size(width_ptr: PInteger; height_ptr: PInteger; {const} str: PChar): integer;
+function av_parse_video_frame_size(width_ptr: PInteger; height_ptr: PInteger; str: {const} PChar): integer;
cdecl; external av__codec;
(**
@@ -3243,7 +3243,7 @@ function av_parse_video_frame_size(width_ptr: PInteger; height_ptr: PInteger; {c
* @param[in,out] frame_rate pointer to the AVRational which will contain the detected
* frame rate
*)
-function av_parse_video_frame_rate(frame_rate: PAVRational; {const} str: PChar): integer;
+function av_parse_video_frame_rate(frame_rate: PAVRational; str: {const} PChar): integer;
cdecl; external av__codec;
{$IFEND}
diff --git a/Game/Code/lib/ffmpeg/avformat.pas b/Game/Code/lib/ffmpeg/avformat.pas
index 4095ddc6..730a64e4 100644
--- a/Game/Code/lib/ffmpeg/avformat.pas
+++ b/Game/Code/lib/ffmpeg/avformat.pas
@@ -744,7 +744,7 @@ function av_oformat_next(f: PAVOutputFormat): PAVOutputFormat;
cdecl; external av__format;
{$IFEND}
-function av_guess_image2_codec({const} filename: PChar): TCodecID;
+function av_guess_image2_codec(filename: {const} PChar): TCodecID;
cdecl; external av__format;
(* XXX: use automatic init with either ELF sections or C file parser *)
diff --git a/Game/Code/lib/ffmpeg/avio.pas b/Game/Code/lib/ffmpeg/avio.pas
index 745725b7..4a7d3a3b 100644
--- a/Game/Code/lib/ffmpeg/avio.pas
+++ b/Game/Code/lib/ffmpeg/avio.pas
@@ -101,7 +101,7 @@ type
TURLProtocol = record
name: pchar;
- url_open: function (h: PURLContext; {const} filename: pchar; flags: integer): integer; cdecl;
+ url_open: function (h: PURLContext; filename: {const} pchar; flags: integer): integer; cdecl;
url_read: function (h: PURLContext; buf: pchar; size: integer): integer; cdecl;
url_write: function (h: PURLContext; buf: pchar; size: integer): integer; cdecl;
url_seek: function (h: PURLContext; pos: TOffset; whence: integer): TOffset; cdecl;
@@ -145,7 +145,7 @@ type
max_packet_size: integer;
checksum: longword;
checksum_ptr: pchar;
- update_checksum: function (checksum: Longword; {const} buf: pchar; size: cardinal): Longword; cdecl;
+ update_checksum: function (checksum: Longword; buf: {const} pchar; size: cardinal): Longword; cdecl;
error: integer; ///< contains the error code or 0 if no error happened
{$IF (LIBAVFORMAT_VERSION >= 52001000) and (LIBAVFORMAT_VERSION < 52004000)} // 52.1.0 .. 52.4.0
read_play: function(opaque: Pointer): integer; cdecl;
@@ -160,7 +160,7 @@ type
{$IFEND}
end;
-function url_open(h: PPointer; {const} filename: pchar; flags: integer): integer;
+function url_open(h: PPointer; filename: {const} pchar; flags: integer): integer;
cdecl; external av__format;
function url_read (h: PURLContext; buf: pchar; size: integer): integer;
cdecl; external av__format;
@@ -170,7 +170,7 @@ function url_seek (h: PURLContext; pos: TOffset; whence: integer): TOffset;
cdecl; external av__format;
function url_close (h: PURLContext): integer;
cdecl; external av__format;
-function url_exist(const filename: pchar): integer;
+function url_exist(filename: {const} pchar): integer;
cdecl; external av__format;
function url_filesize (h: PURLContext): TOffset;
cdecl; external av__format;
@@ -274,7 +274,7 @@ function av_alloc_put_byte(
procedure put_byte(s: PByteIOContext; b: integer);
cdecl; external av__format;
-procedure put_buffer (s: PByteIOContext; {const} buf: pchar; size: integer);
+procedure put_buffer (s: PByteIOContext; buf: {const} pchar; size: integer);
cdecl; external av__format;
procedure put_le64(s: PByteIOContext; val: int64);
cdecl; external av__format;
@@ -292,10 +292,10 @@ procedure put_le16(s: PByteIOContext; val: cardinal);
cdecl; external av__format;
procedure put_be16(s: PByteIOContext; val: cardinal);
cdecl; external av__format;
-procedure put_tag(s: PByteIOContext; {const} tag: pchar);
+procedure put_tag(s: PByteIOContext; tag: {const} pchar);
cdecl; external av__format;
-procedure put_strz(s: PByteIOContext; {const} buf: pchar);
+procedure put_strz(s: PByteIOContext; buf: {const} pchar);
cdecl; external av__format;
(**
@@ -353,7 +353,7 @@ function url_fgetc(s: PByteIOContext): integer;
cdecl; external av__format;
(** @warning currently size is limited *)
-function url_fprintf(s: PByteIOContext; {const} fmt: PChar; args: array of const): integer;
+function url_fprintf(s: PByteIOContext; fmt: {const} PChar; args: array of const): integer;
cdecl; external av__format;
(** @note unlike fgets, the EOL character is not returned and a whole
@@ -437,9 +437,9 @@ function url_resetbuf(s: PByteIOContext; flags: integer): integer;
(** @note when opened as read/write, the buffers are only used for
writing *)
{$IF LIBAVFORMAT_VERSION >= 52000000} // 52.0.0
-function url_fopen(var s: PByteIOContext; const filename: pchar; flags: integer): integer;
+function url_fopen(var s: PByteIOContext; filename: {const} pchar; flags: integer): integer;
{$ELSE}
-function url_fopen(s: PByteIOContext; const filename: pchar; flags: integer): integer;
+function url_fopen(s: PByteIOContext; filename: {const} pchar; flags: integer): integer;
{$IFEND}
cdecl; external av__format;
function url_fclose(s: PByteIOContext): integer;
@@ -509,7 +509,7 @@ function url_close_dyn_buf(s: PByteIOContext; pbuffer:PPointer): integer;
cdecl; external av__format;
{$IF LIBAVFORMAT_VERSION >= 51017001} // 51.17.1
-function ff_crc04C11DB7_update(checksum: longword; {const} buf: PChar; len: cardinal): longword;
+function ff_crc04C11DB7_update(checksum: longword; buf: {const} PChar; len: cardinal): longword;
cdecl; external av__format;
{$IFEND}
function get_checksum(s: PByteIOContext): cardinal;
@@ -518,7 +518,7 @@ procedure init_checksum (s: PByteIOContext; update_checksum: pointer; checksum:
cdecl; external av__format;
(* udp.c *)
-function udp_set_remote_url(h: PURLContext; {const} uri: pchar): integer;
+function udp_set_remote_url(h: PURLContext; uri: {const} pchar): integer;
cdecl; external av__format;
function udp_get_local_port(h: PURLContext): integer;
cdecl; external av__format;