diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/hermes')
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/COPYING.LIB | 438 | ||||
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/HeadMMX.h | 100 | ||||
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/HeadX86.h | 186 | ||||
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/README | 13 | ||||
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/common.inc | 9 | ||||
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/mmx_main.asm | 74 | ||||
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/mmxp2_32.asm | 405 | ||||
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/x86_main.asm | 75 | ||||
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/x86p_16.asm | 490 | ||||
| -rw-r--r-- | distrib/sdl-1.2.15/src/hermes/x86p_32.asm | 1044 |
10 files changed, 2834 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/hermes/COPYING.LIB b/distrib/sdl-1.2.15/src/hermes/COPYING.LIB new file mode 100644 index 0000000..69679a5 --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/COPYING.LIB @@ -0,0 +1,438 @@ + GNU LIBRARY GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the library GPL. It is + numbered 2 because it goes with version 2 of the ordinary GPL.] + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +Licenses are intended to guarantee your freedom to share and change +free software--to make sure the software is free for all its users. + + This license, the Library General Public License, applies to some +specially designated Free Software Foundation software, and to any +other libraries whose authors decide to use it. You can use it for +your libraries, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if +you distribute copies of the library, or if you modify it. + + For example, if you distribute copies of the library, whether gratis +or for a fee, you must give the recipients all the rights that we gave +you. You must make sure that they, too, receive or can get the source +code. If you link a program with the library, you must provide +complete object files to the recipients so that they can relink them +with the library, after making changes to the library and recompiling +it. And you must show them these terms so they know their rights. + + Our method of protecting your rights has two steps: (1) copyright +the library, and (2) offer you this license which gives you legal +permission to copy, distribute and/or modify the library. + + Also, for each distributor's protection, we want to make certain +that everyone understands that there is no warranty for this free +library. If the library is modified by someone else and passed on, we +want its recipients to know that what they have is not the original +version, so that any problems introduced by others will not reflect on +the original authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that companies distributing free +software will individually obtain patent licenses, thus in effect +transforming the program into proprietary software. To prevent this, +we have made it clear that any patent must be licensed for everyone's +free use or not licensed at all. + + Most GNU software, including some libraries, is covered by the ordinary +GNU General Public License, which was designed for utility programs. This +license, the GNU Library General Public License, applies to certain +designated libraries. This license is quite different from the ordinary +one; be sure to read it in full, and don't assume that anything in it is +the same as in the ordinary license. + + The reason we have a separate public license for some libraries is that +they blur the distinction we usually make between modifying or adding to a +program and simply using it. Linking a program with a library, without +changing the library, is in some sense simply using the library, and is +analogous to running a utility program or application program. However, in +a textual and legal sense, the linked executable is a combined work, a +derivative of the original library, and the ordinary General Public License +treats it as such. + + Because of this blurred distinction, using the ordinary General +Public License for libraries did not effectively promote software +sharing, because most developers did not use the libraries. We +concluded that weaker conditions might promote sharing better. + + However, unrestricted linking of non-free programs would deprive the +users of those programs of all benefit from the free status of the +libraries themselves. This Library General Public License is intended to +permit developers of non-free programs to use free libraries, while +preserving your freedom as a user of such programs to change the free +libraries that are incorporated in them. (We have not seen how to achieve +this as regards changes in header files, but we have achieved it as regards +changes in the actual functions of the Library.) The hope is that this +will lead to faster development of free libraries. + + The precise terms and conditions for copying, distribution and +modification follow. Pay close attention to the difference between a +"work based on the library" and a "work that uses the library". The +former contains code derived from the library, while the latter only +works together with the library. + + Note that it is possible for a library to be covered by the ordinary +General Public License rather than by this special one. + + GNU LIBRARY GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License Agreement applies to any software library which +contains a notice placed by the copyright holder or other authorized +party saying it may be distributed under the terms of this Library +General Public License (also called "this License"). Each licensee is +addressed as "you". + + A "library" means a collection of software functions and/or data +prepared so as to be conveniently linked with application programs +(which use some of those functions and data) to form executables. + + The "Library", below, refers to any such software library or work +which has been distributed under these terms. A "work based on the +Library" means either the Library or any derivative work under +copyright law: that is to say, a work containing the Library or a +portion of it, either verbatim or with modifications and/or translated +straightforwardly into another language. (Hereinafter, translation is +included without limitation in the term "modification".) + + "Source code" for a work means the preferred form of the work for +making modifications to it. For a library, complete source code means +all the source code for all modules it contains, plus any associated +interface definition files, plus the scripts used to control compilation +and installation of the library. + + Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running a program using the Library is not restricted, and output from +such a program is covered only if its contents constitute a work based +on the Library (independent of the use of the Library in a tool for +writing it). Whether that is true depends on what the Library does +and what the program that uses the Library does. + + 1. You may copy and distribute verbatim copies of the Library's +complete source code as you receive it, in any medium, provided that +you conspicuously and appropriately publish on each copy an +appropriate copyright notice and disclaimer of warranty; keep intact +all the notices that refer to this License and to the absence of any +warranty; and distribute a copy of this License along with the +Library. + + You may charge a fee for the physical act of transferring a copy, +and you may at your option offer warranty protection in exchange for a +fee. + + 2. You may modify your copy or copies of the Library or any portion +of it, thus forming a work based on the Library, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) The modified work must itself be a software library. + + b) You must cause the files modified to carry prominent notices + stating that you changed the files and the date of any change. + + c) You must cause the whole of the work to be licensed at no + charge to all third parties under the terms of this License. + + d) If a facility in the modified Library refers to a function or a + table of data to be supplied by an application program that uses + the facility, other than as an argument passed when the facility + is invoked, then you must make a good faith effort to ensure that, + in the event an application does not supply such function or + table, the facility still operates, and performs whatever part of + its purpose remains meaningful. + + (For example, a function in a library to compute square roots has + a purpose that is entirely well-defined independent of the + application. Therefore, Subsection 2d requires that any + application-supplied function or table used by this function must + be optional: if the application does not supply it, the square + root function must still compute square roots.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Library, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Library, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote +it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Library. + +In addition, mere aggregation of another work not based on the Library +with the Library (or with a work based on the Library) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may opt to apply the terms of the ordinary GNU General Public +License instead of this License to a given copy of the Library. To do +this, you must alter all the notices that refer to this License, so +that they refer to the ordinary GNU General Public License, version 2, +instead of to this License. (If a newer version than version 2 of the +ordinary GNU General Public License has appeared, then you can specify +that version instead if you wish.) Do not make any other change in +these notices. + + Once this change is made in a given copy, it is irreversible for +that copy, so the ordinary GNU General Public License applies to all +subsequent copies and derivative works made from that copy. + + This option is useful when you wish to copy part of the code of +the Library into a program that is not a library. + + 4. You may copy and distribute the Library (or a portion or +derivative of it, under Section 2) in object code or executable form +under the terms of Sections 1 and 2 above provided that you accompany +it with the complete corresponding machine-readable source code, which +must be distributed under the terms of Sections 1 and 2 above on a +medium customarily used for software interchange. + + If distribution of object code is made by offering access to copy +from a designated place, then offering equivalent access to copy the +source code from the same place satisfies the requirement to +distribute the source code, even though third parties are not +compelled to copy the source along with the object code. + + 5. A program that contains no derivative of any portion of the +Library, but is designed to work with the Library by being compiled or +linked with it, is called a "work that uses the Library". Such a +work, in isolation, is not a derivative work of the Library, and +therefore falls outside the scope of this License. + + However, linking a "work that uses the Library" with the Library +creates an executable that is a derivative of the Library (because it +contains portions of the Library), rather than a "work that uses the +library". The executable is therefore covered by this License. +Section 6 states terms for distribution of such executables. + + When a "work that uses the Library" uses material from a header file +that is part of the Library, the object code for the work may be a +derivative work of the Library even though the source code is not. +Whether this is true is especially significant if the work can be +linked without the Library, or if the work is itself a library. The +threshold for this to be true is not precisely defined by law. + + If such an object file uses only numerical parameters, data +structure layouts and accessors, and small macros and small inline +functions (ten lines or less in length), then the use of the object +file is unrestricted, regardless of whether it is legally a derivative +work. (Executables containing this object code plus portions of the +Library will still fall under Section 6.) + + Otherwise, if the work is a derivative of the Library, you may +distribute the object code for the work under the terms of Section 6. +Any executables containing that work also fall under Section 6, +whether or not they are linked directly with the Library itself. + + 6. As an exception to the Sections above, you may also compile or +link a "work that uses the Library" with the Library to produce a +work containing portions of the Library, and distribute that work +under terms of your choice, provided that the terms permit +modification of the work for the customer's own use and reverse +engineering for debugging such modifications. + + You must give prominent notice with each copy of the work that the +Library is used in it and that the Library and its use are covered by +this License. You must supply a copy of this License. If the work +during execution displays copyright notices, you must include the +copyright notice for the Library among them, as well as a reference +directing the user to the copy of this License. Also, you must do one +of these things: + + a) Accompany the work with the complete corresponding + machine-readable source code for the Library including whatever + changes were used in the work (which must be distributed under + Sections 1 and 2 above); and, if the work is an executable linked + with the Library, with the complete machine-readable "work that + uses the Library", as object code and/or source code, so that the + user can modify the Library and then relink to produce a modified + executable containing the modified Library. (It is understood + that the user who changes the contents of definitions files in the + Library will not necessarily be able to recompile the application + to use the modified definitions.) + + b) Accompany the work with a written offer, valid for at + least three years, to give the same user the materials + specified in Subsection 6a, above, for a charge no more + than the cost of performing this distribution. + + c) If distribution of the work is made by offering access to copy + from a designated place, offer equivalent access to copy the above + specified materials from the same place. + + d) Verify that the user has already received a copy of these + materials or that you have already sent this user a copy. + + For an executable, the required form of the "work that uses the +Library" must include any data and utility programs needed for +reproducing the executable from it. However, as a special exception, +the source code distributed need not include anything that is normally +distributed (in either source or binary form) with the major +components (compiler, kernel, and so on) of the operating system on +which the executable runs, unless that component itself accompanies +the executable. + + It may happen that this requirement contradicts the license +restrictions of other proprietary libraries that do not normally +accompany the operating system. Such a contradiction means you cannot +use both them and the Library together in an executable that you +distribute. + + 7. You may place library facilities that are a work based on the +Library side-by-side in a single library together with other library +facilities not covered by this License, and distribute such a combined +library, provided that the separate distribution of the work based on +the Library and of the other library facilities is otherwise +permitted, and provided that you do these two things: + + a) Accompany the combined library with a copy of the same work + based on the Library, uncombined with any other library + facilities. This must be distributed under the terms of the + Sections above. + + b) Give prominent notice with the combined library of the fact + that part of it is a work based on the Library, and explaining + where to find the accompanying uncombined form of the same work. + + 8. You may not copy, modify, sublicense, link with, or distribute +the Library except as expressly provided under this License. Any +attempt otherwise to copy, modify, sublicense, link with, or +distribute the Library is void, and will automatically terminate your +rights under this License. However, parties who have received copies, +or rights, from you under this License will not have their licenses +terminated so long as such parties remain in full compliance. + + 9. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Library or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Library (or any work based on the +Library), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Library or works based on it. + + 10. Each time you redistribute the Library (or any work based on the +Library), the recipient automatically receives a license from the +original licensor to copy, distribute, link with or modify the Library +subject to these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 11. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Library at all. For example, if a patent +license would not permit royalty-free redistribution of the Library by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Library. + +If any portion of this section is held invalid or unenforceable under any +particular circumstance, the balance of the section is intended to apply, +and the section as a whole is intended to apply in other circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 12. If the distribution and/or use of the Library is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Library under this License may add +an explicit geographical distribution limitation excluding those countries, +so that distribution is permitted only in or among countries not thus +excluded. In such case, this License incorporates the limitation as if +written in the body of this License. + + 13. The Free Software Foundation may publish revised and/or new +versions of the Library General Public License from time to time. +Such new versions will be similar in spirit to the present version, +but may differ in detail to address new problems or concerns. + +Each version is given a distinguishing version number. If the Library +specifies a version number of this License which applies to it and +"any later version", you have the option of following the terms and +conditions either of that version or of any later version published by +the Free Software Foundation. If the Library does not specify a +license version number, you may choose any version ever published by +the Free Software Foundation. + + 14. If you wish to incorporate parts of the Library into other free +programs whose distribution conditions are incompatible with these, +write to the author to ask for permission. For software which is +copyrighted by the Free Software Foundation, write to the Free +Software Foundation; we sometimes make exceptions for this. Our +decision will be guided by the two goals of preserving the free status +of all derivatives of our free software and of promoting the sharing +and reuse of software generally. + + NO WARRANTY + + 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO +WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. +EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR +OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY +KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE +LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME +THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. + + 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN +WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY +AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU +FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR +CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE +LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING +RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A +FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF +SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH +DAMAGES. + + END OF TERMS AND CONDITIONS + diff --git a/distrib/sdl-1.2.15/src/hermes/HeadMMX.h b/distrib/sdl-1.2.15/src/hermes/HeadMMX.h new file mode 100644 index 0000000..5d9850c --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/HeadMMX.h @@ -0,0 +1,100 @@ +/* + Header definitions for the MMX routines for the HERMES library + Copyright (c) 1998 Christian Nentwich (c.nentwich@cs.ucl.ac.uk) + This source code is licensed under the GNU LGPL + + Please refer to the file COPYING.LIB contained in the distribution for + licensing conditions +*/ +#include "SDL_config.h" + +#ifndef __HERMES_HEAD_MMX__ +#define __HERMES_HEAD_MMX__ + + +/* If you cannot stand ifdefs, then please do not look into this file, it's + going to end your life :) */ + +#ifdef X86_ASSEMBLER + + +#ifdef __cplusplus +extern "C" { +#endif + +void STACKCALL ConvertMMX(HermesConverterInterface *); + +void STACKCALL ClearMMX_32(HermesClearInterface *); +void STACKCALL ClearMMX_24(HermesClearInterface *); +void STACKCALL ClearMMX_16(HermesClearInterface *); +void STACKCALL ClearMMX_8(HermesClearInterface *); + +void ConvertMMXpII32_24RGB888(); +void ConvertMMXpII32_16RGB565(); +void ConvertMMXpII32_16BGR565(); +void ConvertMMXpII32_16RGB555(); +void ConvertMMXpII32_16BGR565(); +void ConvertMMXpII32_16BGR555(); + +void ConvertMMXp32_16RGB555(); + +#ifdef __cplusplus +} +#endif + + + +/* Fix the underscore business with ELF compilers */ + +#if (defined(__ELF__) && defined(__GNUC__)) || defined(__SUNPRO_C) + #ifdef __cplusplus + extern "C" { + #endif + + extern void _ConvertMMX(HermesConverterInterface *); + extern void _ConvertMMXpII32_24RGB888(); + extern void _ConvertMMXpII32_16RGB565(); + extern void _ConvertMMXpII32_16BGR565(); + extern void _ConvertMMXpII32_16RGB555(); + extern void _ConvertMMXpII32_16BGR555(); + + #define ConvertMMX _ConvertMMX + #define ConvertMMXpII32_24RGB888 _ConvertMMXpII32_24RGB888 + #define ConvertMMXpII32_16RGB565 _ConvertMMXpII32_16RGB565 + #define ConvertMMXpII32_16BGR565 _ConvertMMXpII32_16BGR565 + #define ConvertMMXpII32_16RGB555 _ConvertMMXpII32_16RGB555 + #define ConvertMMXpII32_16BGR555 _ConvertMMXpII32_16BGR555 + + #ifdef __cplusplus + } + #endif + +#endif /* ELF and GNUC */ + + + + +/* Make it work with Watcom */ +#ifdef __WATCOMC__ +#pragma warning 601 9 + +#pragma aux ConvertMMX "_*" modify [EAX EBX ECX EDX ESI EDI] + +#pragma aux ClearMMX_32 "_*" modify [EAX EBX ECX EDX ESI EDI] +#pragma aux ClearMMX_24 "_*" modify [EAX EBX ECX EDX ESI EDI] +#pragma aux ClearMMX_16 "_*" modify [EAX EBX ECX EDX ESI EDI] +#pragma aux ClearMMX_8 "_*" modify [EAX EBX ECX EDX ESI EDI] + +#pragma aux ConvertMMXpII32_24RGB888 "_*" +#pragma aux ConvertMMXpII32_16RGB565 "_*" +#pragma aux ConvertMMXpII32_16BGR565 "_*" +#pragma aux ConvertMMXpII32_16RGB555 "_*" +#pragma aux ConvertMMXpII32_16BGR555 "_*" +#pragma aux ConvertMMXp32_16RGB555 "_*" + +#endif /* WATCOM */ + +#endif /* X86_ASSEMBLER */ + + +#endif diff --git a/distrib/sdl-1.2.15/src/hermes/HeadX86.h b/distrib/sdl-1.2.15/src/hermes/HeadX86.h new file mode 100644 index 0000000..fc6b6dd --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/HeadX86.h @@ -0,0 +1,186 @@ +/* + Header definitions for the x86 routines for the HERMES library + Copyright (c) 1998 Christian Nentwich (brn@eleet.mcb.at) + This source code is licensed under the GNU LGPL + + Please refer to the file COPYING.LIB contained in the distribution for + licensing conditions +*/ + +#ifndef __HERMES_HEAD_X86__ +#define __HERMES_HEAD_X86__ + + +#ifdef X86_ASSEMBLER + +/* If you can't stand IFDEFS, then close your eyes now, please :) */ + +/* Ok, we start with normal function definitions */ +#ifdef __cplusplus +extern "C" { +#endif + + +void STACKCALL ConvertX86(HermesConverterInterface *); +void STACKCALL ClearX86_32(HermesClearInterface *); +void STACKCALL ClearX86_24(HermesClearInterface *); +void STACKCALL ClearX86_16(HermesClearInterface *); +void STACKCALL ClearX86_8(HermesClearInterface *); + +int STACKCALL Hermes_X86_CPU(); + +void ConvertX86p32_32BGR888(); +void ConvertX86p32_32RGBA888(); +void ConvertX86p32_32BGRA888(); +void ConvertX86p32_24RGB888(); +void ConvertX86p32_24BGR888(); +void ConvertX86p32_16RGB565(); +void ConvertX86p32_16BGR565(); +void ConvertX86p32_16RGB555(); +void ConvertX86p32_16BGR555(); +void ConvertX86p32_8RGB332(); + +void ConvertX86p16_32RGB888(); +void ConvertX86p16_32BGR888(); +void ConvertX86p16_32RGBA888(); +void ConvertX86p16_32BGRA888(); +void ConvertX86p16_24RGB888(); +void ConvertX86p16_24BGR888(); +void ConvertX86p16_16BGR565(); +void ConvertX86p16_16RGB555(); +void ConvertX86p16_16BGR555(); +void ConvertX86p16_8RGB332(); + +void CopyX86p_4byte(); +void CopyX86p_3byte(); +void CopyX86p_2byte(); +void CopyX86p_1byte(); + +void ConvertX86pI8_32(); +void ConvertX86pI8_24(); +void ConvertX86pI8_16(); + +extern int ConvertX86p16_32RGB888_LUT_X86[512]; +extern int ConvertX86p16_32BGR888_LUT_X86[512]; +extern int ConvertX86p16_32RGBA888_LUT_X86[512]; +extern int ConvertX86p16_32BGRA888_LUT_X86[512]; + +#ifdef __cplusplus +} +#endif + + + + +/* Now fix up the ELF underscore problem */ + +#if (defined(__ELF__) && defined(__GNUC__)) || defined(__SUNPRO_C) + #ifdef __cplusplus + extern "C" { + #endif + + extern int _Hermes_X86_CPU(); + + extern void _ConvertX86(HermesConverterInterface *); + + extern void _ConvertX86p32_32BGR888(); + extern void _ConvertX86p32_32RGBA888(); + extern void _ConvertX86p32_32BGRA888(); + extern void _ConvertX86p32_24RGB888(); + extern void _ConvertX86p32_24BGR888(); + extern void _ConvertX86p32_16RGB565(); + extern void _ConvertX86p32_16BGR565(); + extern void _ConvertX86p32_16RGB555(); + extern void _ConvertX86p32_16BGR555(); + extern void _ConvertX86p32_8RGB332(); + + extern void _ConvertX86p16_16BGR565(); + extern void _ConvertX86p16_16RGB555(); + extern void _ConvertX86p16_16BGR555(); + extern void _ConvertX86p16_8RGB332(); + + + #define Hermes_X86_CPU _Hermes_X86_CPU + + #define ConvertX86 _ConvertX86 + + #define ConvertX86p32_32BGR888 _ConvertX86p32_32BGR888 + #define ConvertX86p32_32RGBA888 _ConvertX86p32_32RGBA888 + #define ConvertX86p32_32BGRA888 _ConvertX86p32_32BGRA888 + #define ConvertX86p32_24RGB888 _ConvertX86p32_24RGB888 + #define ConvertX86p32_24BGR888 _ConvertX86p32_24BGR888 + #define ConvertX86p32_16RGB565 _ConvertX86p32_16RGB565 + #define ConvertX86p32_16BGR565 _ConvertX86p32_16BGR565 + #define ConvertX86p32_16RGB555 _ConvertX86p32_16RGB555 + #define ConvertX86p32_16BGR555 _ConvertX86p32_16BGR555 + #define ConvertX86p32_8RGB332 _ConvertX86p32_8RGB332 + + #define ConvertX86p16_16BGR565 _ConvertX86p16_16BGR565 + #define ConvertX86p16_16RGB555 _ConvertX86p16_16RGB555 + #define ConvertX86p16_16BGR555 _ConvertX86p16_16BGR555 + #define ConvertX86p16_8RGB332 _ConvertX86p16_8RGB332 + + + #ifdef __cplusplus + } + #endif + +#endif /* ELF & GNU */ + + + +/* Make it run with WATCOM C */ +#ifdef __WATCOMC__ +#pragma warning 601 9 + +#pragma aux Hermes_X86_CPU "_*" + +#pragma aux ConvertX86 "_*" modify [EAX EBX ECX EDX ESI EDI] +#pragma aux ClearX86_32 "_*" modify [EAX EBX ECX EDX ESI EDI] +#pragma aux ClearX86_24 "_*" modify [EAX EBX ECX EDX ESI EDI] +#pragma aux ClearX86_16 "_*" modify [EAX EBX ECX EDX ESI EDI] +#pragma aux ClearX86_8 "_*" modify [EAX EBX ECX EDX ESI EDI] + +#pragma aux ConvertX86p32_32BGR888 "_*" +#pragma aux ConvertX86p32_32RGBA888 "_*" +#pragma aux ConvertX86p32_32BGRA888 "_*" +#pragma aux ConvertX86p32_24RGB888 "_*" +#pragma aux ConvertX86p32_24BGR888 "_*" +#pragma aux ConvertX86p32_16RGB565 "_*" +#pragma aux ConvertX86p32_16BGR565 "_*" +#pragma aux ConvertX86p32_16RGB555 "_*" +#pragma aux ConvertX86p32_16BGR555 "_*" +#pragma aux ConvertX86p32_8RGB332 "_*" + +#pragma aux ConvertX86p16_32RGB888 "_*" +#pragma aux ConvertX86p16_32BGR888 "_*" +#pragma aux ConvertX86p16_32RGBA888 "_*" +#pragma aux ConvertX86p16_32BGRA888 "_*" +#pragma aux ConvertX86p16_24RGB888 "_*" +#pragma aux ConvertX86p16_24BGR888 "_*" +#pragma aux ConvertX86p16_16BGR565 "_*" +#pragma aux ConvertX86p16_16RGB555 "_*" +#pragma aux ConvertX86p16_16BGR555 "_*" +#pragma aux ConvertX86p16_8RGB332 "_*" + +#pragma aux CopyX86p_4byte "_*" +#pragma aux CopyX86p_3byte "_*" +#pragma aux CopyX86p_2byte "_*" +#pragma aux CopyX86p_1byte "_*" + +#pragma aux ConvertX86pI8_32 "_*" +#pragma aux ConvertX86pI8_24 "_*" +#pragma aux ConvertX86pI8_16 "_*" + +#pragma aux ConvertX86p16_32RGB888_LUT_X86 "_*" +#pragma aux ConvertX86p16_32BGR888_LUT_X86 "_*" +#pragma aux ConvertX86p16_32RGBA888_LUT_X86 "_*" +#pragma aux ConvertX86p16_32BGRA888_LUT_X86 "_*" + +#endif /* __WATCOMC__ */ + + +#endif /* X86_ASSEMBLER */ + + +#endif diff --git a/distrib/sdl-1.2.15/src/hermes/README b/distrib/sdl-1.2.15/src/hermes/README new file mode 100644 index 0000000..a03b6cf --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/README @@ -0,0 +1,13 @@ +HERMES 1.2.4 (c)1998 Christian Nentwich (brn) (c.nentwich@cs.ucl.ac.uk) +and quite a few assembler routines (c) Glenn Fielder (gaffer@gaffer.org) + +This library and all the files enclosed in this package are free software +under the terms of the GNU Library General Public License (LGPL). Please +refer to the included file COPYING.LIB for the exact terms. +---------------------------------------------------------------------------- + +This is a stripped down version of HERMES, including only the x86 assembler +converters, for use with Simple DirectMedia Layer. + +The full HERMES library is available at: http://hermes.terminal.at/ + diff --git a/distrib/sdl-1.2.15/src/hermes/common.inc b/distrib/sdl-1.2.15/src/hermes/common.inc new file mode 100644 index 0000000..9587e6f --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/common.inc @@ -0,0 +1,9 @@ +; Some common macros for hermes nasm code + +%macro SDL_FUNC 1 +%ifdef HIDDEN_VISIBILITY +GLOBAL %1:function hidden +%else +GLOBAL %1 +%endif +%endmacro diff --git a/distrib/sdl-1.2.15/src/hermes/mmx_main.asm b/distrib/sdl-1.2.15/src/hermes/mmx_main.asm new file mode 100644 index 0000000..00032b9 --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/mmx_main.asm @@ -0,0 +1,74 @@ +; +; mmx format converter main loops for HERMES +; Some routines Copyright (c) 1998 Christian Nentwich (c.nentwich@cs.ucl.ac.uk) +; This source code is licensed under the GNU LGPL +; +; Please refer to the file COPYING.LIB contained in the distribution for +; licensing conditions +; + +BITS 32 + +%include "common.inc" + +SDL_FUNC _ConvertMMX + +SECTION .text + +;; _ConvertMMX: +;; [ESP+8] ConverterInfo* +;; -------------------------------------------------------------------------- +;; ConverterInfo (ebp+..) +;; 0: void *s_pixels +;; 4: int s_width +;; 8: int s_height +;; 12: int s_add +;; 16: void *d_pixels +;; 20: int d_width +;; 24: int d_height +;; 28: int d_add +;; 32: void (*converter_function)() +;; 36: int32 *lookup + +_ConvertMMX: + push ebp + mov ebp,esp + +; Save the registers used by the blitters, necessary for optimized code + pusha + + mov eax,[ebp+8] + + cmp dword [eax+4],BYTE 0 + je endconvert + + mov ebp,eax + + mov esi,[ebp+0] + mov edi,[ebp+16] + +y_loop: + mov ecx,[ebp+4] + + call [ebp+32] + + add esi,[ebp+12] + add edi,[ebp+28] + + dec dword [ebp+8] + jnz y_loop + + +; Restore the registers used by the blitters, necessary for optimized code + popa + + pop ebp + +endconvert: + emms + + ret + +%ifidn __OUTPUT_FORMAT__,elf32 +section .note.GNU-stack noalloc noexec nowrite progbits +%endif diff --git a/distrib/sdl-1.2.15/src/hermes/mmxp2_32.asm b/distrib/sdl-1.2.15/src/hermes/mmxp2_32.asm new file mode 100644 index 0000000..20c3277 --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/mmxp2_32.asm @@ -0,0 +1,405 @@ +; +; pII-optimised MMX format converters for HERMES +; Copyright (c) 1998 Christian Nentwich (c.nentwich@cs.ucl.ac.uk) +; and (c) 1999 Jonathan Matthew (jmatthew@uq.net.au) +; This source code is licensed under the GNU LGPL +; +; Please refer to the file COPYING.LIB contained in the distribution for +; licensing conditions +; +; COPYRIGHT NOTICE +; +; This file partly contains code that is (c) Intel Corporation, specifically +; the mode detection routine, and the converter to 15 bit (8 pixel +; conversion routine from the mmx programming tutorial pages). +; +; +; These routines aren't exactly pII optimised - it's just that as they +; are, they're terrible on p5 MMXs, but less so on pIIs. Someone needs to +; optimise them for p5 MMXs.. + +BITS 32 + +%include "common.inc" + +SDL_FUNC _ConvertMMXpII32_24RGB888 +SDL_FUNC _ConvertMMXpII32_16RGB565 +SDL_FUNC _ConvertMMXpII32_16BGR565 +SDL_FUNC _ConvertMMXpII32_16RGB555 +SDL_FUNC _ConvertMMXpII32_16BGR555 + +;; Macros for conversion routines + +%macro _push_immq_mask 1 + push dword %1 + push dword %1 +%endmacro + +%macro load_immq 2 + _push_immq_mask %2 + movq %1, [esp] +%endmacro + +%macro pand_immq 2 + _push_immq_mask %2 + pand %1, [esp] +%endmacro + +%define CLEANUP_IMMQ_LOADS(num) \ + add esp, byte 8 * num + +%define mmx32_rgb888_mask 00ffffffh +%define mmx32_rgb565_b 000000f8h +%define mmx32_rgb565_g 0000fc00h +%define mmx32_rgb565_r 00f80000h + +%define mmx32_rgb555_rb 00f800f8h +%define mmx32_rgb555_g 0000f800h +%define mmx32_rgb555_mul 20000008h +%define mmx32_bgr555_mul 00082000h + +SECTION .text + +_ConvertMMXpII32_24RGB888: + + ; set up mm6 as the mask, mm7 as zero + load_immq mm6, mmx32_rgb888_mask + CLEANUP_IMMQ_LOADS(1) + pxor mm7, mm7 + + mov edx, ecx ; save ecx + and ecx, 0fffffffch ; clear lower two bits + jnz .L1 + jmp .L2 + +.L1: + + movq mm0, [esi] ; A R G B a r g b + pand mm0, mm6 ; 0 R G B 0 r g b + movq mm1, [esi+8] ; A R G B a r g b + pand mm1, mm6 ; 0 R G B 0 r g b + + movq mm2, mm0 ; 0 R G B 0 r g b + punpckhdq mm2, mm7 ; 0 0 0 0 0 R G B + punpckldq mm0, mm7 ; 0 0 0 0 0 r g b + psllq mm2, 24 ; 0 0 R G B 0 0 0 + por mm0, mm2 ; 0 0 R G B r g b + + movq mm3, mm1 ; 0 R G B 0 r g b + psllq mm3, 48 ; g b 0 0 0 0 0 0 + por mm0, mm3 ; g b R G B r g b + + movq mm4, mm1 ; 0 R G B 0 r g b + punpckhdq mm4, mm7 ; 0 0 0 0 0 R G B + punpckldq mm1, mm7 ; 0 0 0 0 0 r g b + psrlq mm1, 16 ; 0 0 0 R G B 0 r + psllq mm4, 8 ; 0 0 0 0 R G B 0 + por mm1, mm4 ; 0 0 0 0 R G B r + + movq [edi], mm0 + add esi, BYTE 16 + movd [edi+8], mm1 + add edi, BYTE 12 + sub ecx, BYTE 4 + jnz .L1 + +.L2: + mov ecx, edx + and ecx, BYTE 3 + jz .L4 +.L3: + mov al, [esi] + mov bl, [esi+1] + mov dl, [esi+2] + mov [edi], al + mov [edi+1], bl + mov [edi+2], dl + add esi, BYTE 4 + add edi, BYTE 3 + dec ecx + jnz .L3 +.L4: + retn + + + +_ConvertMMXpII32_16RGB565: + + ; set up masks + load_immq mm5, mmx32_rgb565_b + load_immq mm6, mmx32_rgb565_g + load_immq mm7, mmx32_rgb565_r + CLEANUP_IMMQ_LOADS(3) + + mov edx, ecx + shr ecx, 2 + jnz .L1 + jmp .L2 ; not necessary at the moment, but doesn't hurt (much) + +.L1: + movq mm0, [esi] ; argb + movq mm1, mm0 ; argb + pand mm0, mm6 ; 00g0 + movq mm3, mm1 ; argb + pand mm1, mm5 ; 000b + pand mm3, mm7 ; 0r00 + pslld mm1, 2 ; 0 0 000000bb bbb00000 + por mm0, mm1 ; 0 0 ggggggbb bbb00000 + psrld mm0, 5 ; 0 0 00000ggg gggbbbbb + + movq mm4, [esi+8] ; argb + movq mm2, mm4 ; argb + pand mm4, mm6 ; 00g0 + movq mm1, mm2 ; argb + pand mm2, mm5 ; 000b + pand mm1, mm7 ; 0r00 + pslld mm2, 2 ; 0 0 000000bb bbb00000 + por mm4, mm2 ; 0 0 ggggggbb bbb00000 + psrld mm4, 5 ; 0 0 00000ggg gggbbbbb + + packuswb mm3, mm1 ; R 0 r 0 + packssdw mm0, mm4 ; as above.. ish + por mm0, mm3 ; done. + movq [edi], mm0 + + add esi, 16 + add edi, 8 + dec ecx + jnz .L1 + +.L2: + mov ecx, edx + and ecx, BYTE 3 + jz .L4 +.L3: + mov al, [esi] + mov bh, [esi+1] + mov ah, [esi+2] + shr al, 3 + and eax, 0F81Fh ; BYTE? + shr ebx, 5 + and ebx, 07E0h ; BYTE? + add eax, ebx + mov [edi], al + mov [edi+1], ah + add esi, BYTE 4 + add edi, BYTE 2 + dec ecx + jnz .L3 + +.L4: + retn + + +_ConvertMMXpII32_16BGR565: + + load_immq mm5, mmx32_rgb565_r + load_immq mm6, mmx32_rgb565_g + load_immq mm7, mmx32_rgb565_b + CLEANUP_IMMQ_LOADS(3) + + mov edx, ecx + shr ecx, 2 + jnz .L1 + jmp .L2 + +.L1: + movq mm0, [esi] ; a r g b + movq mm1, mm0 ; a r g b + pand mm0, mm6 ; 0 0 g 0 + movq mm3, mm1 ; a r g b + pand mm1, mm5 ; 0 r 0 0 + pand mm3, mm7 ; 0 0 0 b + + psllq mm3, 16 ; 0 b 0 0 + psrld mm1, 14 ; 0 0 000000rr rrr00000 + por mm0, mm1 ; 0 0 ggggggrr rrr00000 + psrld mm0, 5 ; 0 0 00000ggg gggrrrrr + + movq mm4, [esi+8] ; a r g b + movq mm2, mm4 ; a r g b + pand mm4, mm6 ; 0 0 g 0 + movq mm1, mm2 ; a r g b + pand mm2, mm5 ; 0 r 0 0 + pand mm1, mm7 ; 0 0 0 b + + psllq mm1, 16 ; 0 b 0 0 + psrld mm2, 14 ; 0 0 000000rr rrr00000 + por mm4, mm2 ; 0 0 ggggggrr rrr00000 + psrld mm4, 5 ; 0 0 00000ggg gggrrrrr + + packuswb mm3, mm1 ; BBBBB000 00000000 bbbbb000 00000000 + packssdw mm0, mm4 ; 00000GGG GGGRRRRR 00000GGG GGGRRRRR + por mm0, mm3 ; BBBBBGGG GGGRRRRR bbbbbggg gggrrrrr + movq [edi], mm0 + + add esi, BYTE 16 + add edi, BYTE 8 + dec ecx + jnz .L1 + +.L2: + and edx, BYTE 3 + jz .L4 +.L3: + mov al, [esi+2] + mov bh, [esi+1] + mov ah, [esi] + shr al, 3 + and eax, 0F81Fh ; BYTE ? + shr ebx, 5 + and ebx, 07E0h ; BYTE ? + add eax, ebx + mov [edi], al + mov [edi+1], ah + add esi, BYTE 4 + add edi, BYTE 2 + dec edx + jnz .L3 + +.L4: + retn + +_ConvertMMXpII32_16BGR555: + + ; the 16BGR555 converter is identical to the RGB555 one, + ; except it uses a different multiplier for the pmaddwd + ; instruction. cool huh. + + load_immq mm7, mmx32_bgr555_mul + jmp _convert_bgr555_cheat + +; This is the same as the Intel version.. they obviously went to +; much more trouble to expand/coil the loop than I did, so theirs +; would almost certainly be faster, even if only a little. +; I did rename 'mmx32_rgb555_add' to 'mmx32_rgb555_mul', which is +; (I think) a more accurate name.. +_ConvertMMXpII32_16RGB555: + + load_immq mm7, mmx32_rgb555_mul +_convert_bgr555_cheat: + load_immq mm6, mmx32_rgb555_g + CLEANUP_IMMQ_LOADS(2) + + mov edx,ecx ; Save ecx + + and ecx,DWORD 0fffffff8h ; clear lower three bits + jnz .L_OK + jmp near .L2 + +.L_OK: + + movq mm2,[esi+8] + + movq mm0,[esi] + movq mm3,mm2 + + pand_immq mm3, mmx32_rgb555_rb + movq mm1,mm0 + + pand_immq mm1, mmx32_rgb555_rb + pmaddwd mm3,mm7 + + CLEANUP_IMMQ_LOADS(2) + + pmaddwd mm1,mm7 + pand mm2,mm6 + +.L1: + movq mm4,[esi+24] + pand mm0,mm6 + + movq mm5,[esi+16] + por mm3,mm2 + + psrld mm3,6 + por mm1,mm0 + + movq mm0,mm4 + psrld mm1,6 + + pand_immq mm0, mmx32_rgb555_rb + packssdw mm1,mm3 + + movq mm3,mm5 + pmaddwd mm0,mm7 + + pand_immq mm3, mmx32_rgb555_rb + pand mm4,mm6 + + movq [edi],mm1 + pmaddwd mm3,mm7 + + add esi,BYTE 32 + por mm4,mm0 + + pand mm5,mm6 + psrld mm4,6 + + movq mm2,[esi+8] + por mm5,mm3 + + movq mm0,[esi] + psrld mm5,6 + + movq mm3,mm2 + movq mm1,mm0 + + pand_immq mm3, mmx32_rgb555_rb + packssdw mm5,mm4 + + pand_immq mm1, mmx32_rgb555_rb + pand mm2,mm6 + + CLEANUP_IMMQ_LOADS(4) + + movq [edi+8],mm5 + pmaddwd mm3,mm7 + + pmaddwd mm1,mm7 + add edi,BYTE 16 + + sub ecx,BYTE 8 + jz .L2 + jmp .L1 + + +.L2: + mov ecx,edx + + and ecx,BYTE 7 + jz .L4 + +.L3: + mov ebx,[esi] + add esi,BYTE 4 + + mov eax,ebx + mov edx,ebx + + shr eax,3 + shr edx,6 + + and eax,BYTE 0000000000011111b + and edx, 0000001111100000b + + shr ebx,9 + + or eax,edx + + and ebx, 0111110000000000b + + or eax,ebx + + mov [edi],ax + add edi,BYTE 2 + + dec ecx + jnz .L3 + +.L4: + retn + +%ifidn __OUTPUT_FORMAT__,elf32 +section .note.GNU-stack noalloc noexec nowrite progbits +%endif diff --git a/distrib/sdl-1.2.15/src/hermes/x86_main.asm b/distrib/sdl-1.2.15/src/hermes/x86_main.asm new file mode 100644 index 0000000..f7dd3db --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/x86_main.asm @@ -0,0 +1,75 @@ +; +; x86 format converters for HERMES +; Some routines Copyright (c) 1998 Christian Nentwich (brn@eleet.mcb.at) +; This source code is licensed under the GNU LGPL +; +; Please refer to the file COPYING.LIB contained in the distribution for +; licensing conditions +; +; Most routines are (c) Glenn Fiedler (ptc@gaffer.org), used with permission +; + +BITS 32 + +%include "common.inc" + +SDL_FUNC _ConvertX86 + +SECTION .text + +;; _ConvertX86: +;; [ESP+8] ConverterInfo* +;; -------------------------------------------------------------------------- +;; ConverterInfo (ebp+..) +;; 0: void *s_pixels +;; 4: int s_width +;; 8: int s_height +;; 12: int s_add +;; 16: void *d_pixels +;; 20: int d_width +;; 24: int d_height +;; 28: int d_add +;; 32: void (*converter_function)() +;; 36: int32 *lookup + +_ConvertX86: + push ebp + mov ebp,esp + +; Save the registers used by the blitters, necessary for optimized code + pusha + + mov eax,[ebp+8] + + cmp dword [eax+4],BYTE 0 + je endconvert + + mov ebp,eax + + mov esi,[ebp+0] + mov edi,[ebp+16] + +y_loop: + mov ecx,[ebp+4] + + call [ebp+32] + + add esi,[ebp+12] + add edi,[ebp+28] + + dec dword [ebp+8] + jnz y_loop + +; Restore the registers used by the blitters, necessary for optimized code + popa + + pop ebp + +endconvert: + ret + + + +%ifidn __OUTPUT_FORMAT__,elf32 +section .note.GNU-stack noalloc noexec nowrite progbits +%endif diff --git a/distrib/sdl-1.2.15/src/hermes/x86p_16.asm b/distrib/sdl-1.2.15/src/hermes/x86p_16.asm new file mode 100644 index 0000000..1801bcd --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/x86p_16.asm @@ -0,0 +1,490 @@ +; +; x86 format converters for HERMES +; Copyright (c) 1998 Glenn Fielder (gaffer@gaffer.org) +; This source code is licensed under the GNU LGPL +; +; Please refer to the file COPYING.LIB contained in the distribution for +; licensing conditions +; +; Routines adjusted for Hermes by Christian Nentwich (brn@eleet.mcb.at) +; Used with permission. +; + +BITS 32 + +%include "common.inc" + +SDL_FUNC _ConvertX86p16_16BGR565 +SDL_FUNC _ConvertX86p16_16RGB555 +SDL_FUNC _ConvertX86p16_16BGR555 +SDL_FUNC _ConvertX86p16_8RGB332 + +EXTERN _ConvertX86 + +SECTION .text + +_ConvertX86p16_16BGR565: + + ; check short + cmp ecx,BYTE 16 + ja .L3 + + +.L1: ; short loop + mov al,[esi] + mov ah,[esi+1] + mov ebx,eax + mov edx,eax + shr eax,11 + and eax,BYTE 11111b + and ebx,11111100000b + shl edx,11 + add eax,ebx + add eax,edx + mov [edi],al + mov [edi+1],ah + add esi,BYTE 2 + add edi,BYTE 2 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; head + mov eax,edi + and eax,BYTE 11b + jz .L4 + mov al,[esi] + mov ah,[esi+1] + mov ebx,eax + mov edx,eax + shr eax,11 + and eax,BYTE 11111b + and ebx,11111100000b + shl edx,11 + add eax,ebx + add eax,edx + mov [edi],al + mov [edi+1],ah + add esi,BYTE 2 + add edi,BYTE 2 + dec ecx + +.L4: ; save count + push ecx + + ; unroll twice + shr ecx,1 + + ; point arrays to end + lea esi,[esi+ecx*4] + lea edi,[edi+ecx*4] + + ; negative counter + neg ecx + jmp SHORT .L6 + +.L5: mov [edi+ecx*4-4],eax +.L6: mov eax,[esi+ecx*4] + + mov ebx,[esi+ecx*4] + and eax,07E007E0h + + mov edx,[esi+ecx*4] + and ebx,0F800F800h + + shr ebx,11 + and edx,001F001Fh + + shl edx,11 + add eax,ebx + + add eax,edx + inc ecx + + jnz .L5 + + mov [edi+ecx*4-4],eax + + ; tail + pop ecx + and ecx,BYTE 1 + jz .L7 + mov al,[esi] + mov ah,[esi+1] + mov ebx,eax + mov edx,eax + shr eax,11 + and eax,BYTE 11111b + and ebx,11111100000b + shl edx,11 + add eax,ebx + add eax,edx + mov [edi],al + mov [edi+1],ah + add esi,BYTE 2 + add edi,BYTE 2 + +.L7: + retn + + + + + + +_ConvertX86p16_16RGB555: + + ; check short + cmp ecx,BYTE 32 + ja .L3 + + +.L1: ; short loop + mov al,[esi] + mov ah,[esi+1] + mov ebx,eax + shr ebx,1 + and ebx, 0111111111100000b + and eax,BYTE 0000000000011111b + add eax,ebx + mov [edi],al + mov [edi+1],ah + add esi,BYTE 2 + add edi,BYTE 2 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; head + mov eax,edi + and eax,BYTE 11b + jz .L4 + mov al,[esi] + mov ah,[esi+1] + mov ebx,eax + shr ebx,1 + and ebx, 0111111111100000b + and eax,BYTE 0000000000011111b + add eax,ebx + mov [edi],al + mov [edi+1],ah + add esi,BYTE 2 + add edi,BYTE 2 + dec ecx + +.L4: ; save ebp + push ebp + + ; save count + push ecx + + ; unroll four times + shr ecx,2 + + ; point arrays to end + lea esi,[esi+ecx*8] + lea edi,[edi+ecx*8] + + ; negative counter + xor ebp,ebp + sub ebp,ecx + +.L5: mov eax,[esi+ebp*8] ; agi? + mov ecx,[esi+ebp*8+4] + + mov ebx,eax + mov edx,ecx + + and eax,0FFC0FFC0h + and ecx,0FFC0FFC0h + + shr eax,1 + and ebx,001F001Fh + + shr ecx,1 + and edx,001F001Fh + + add eax,ebx + add ecx,edx + + mov [edi+ebp*8],eax + mov [edi+ebp*8+4],ecx + + inc ebp + jnz .L5 + + ; tail + pop ecx +.L6: and ecx,BYTE 11b + jz .L7 + mov al,[esi] + mov ah,[esi+1] + mov ebx,eax + shr ebx,1 + and ebx, 0111111111100000b + and eax,BYTE 0000000000011111b + add eax,ebx + mov [edi],al + mov [edi+1],ah + add esi,BYTE 2 + add edi,BYTE 2 + dec ecx + jmp SHORT .L6 + +.L7: pop ebp + retn + + + + + + +_ConvertX86p16_16BGR555: + + ; check short + cmp ecx,BYTE 16 + ja .L3 + + +.L1: ; short loop + mov al,[esi] + mov ah,[esi+1] + mov ebx,eax + mov edx,eax + shr eax,11 + and eax,BYTE 11111b + shr ebx,1 + and ebx,1111100000b + shl edx,10 + and edx,0111110000000000b + add eax,ebx + add eax,edx + mov [edi],al + mov [edi+1],ah + add esi,BYTE 2 + add edi,BYTE 2 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; head + mov eax,edi + and eax,BYTE 11b + jz .L4 + mov al,[esi] + mov ah,[esi+1] + mov ebx,eax + mov edx,eax + shr eax,11 + and eax,BYTE 11111b + shr ebx,1 + and ebx,1111100000b + shl edx,10 + and edx,0111110000000000b + add eax,ebx + add eax,edx + mov [edi],al + mov [edi+1],ah + add esi,BYTE 2 + add edi,BYTE 2 + dec ecx + +.L4: ; save count + push ecx + + ; unroll twice + shr ecx,1 + + ; point arrays to end + lea esi,[esi+ecx*4] + lea edi,[edi+ecx*4] + + ; negative counter + neg ecx + jmp SHORT .L6 + +.L5: mov [edi+ecx*4-4],eax +.L6: mov eax,[esi+ecx*4] + + shr eax,1 + mov ebx,[esi+ecx*4] + + and eax,03E003E0h + mov edx,[esi+ecx*4] + + and ebx,0F800F800h + + shr ebx,11 + and edx,001F001Fh + + shl edx,10 + add eax,ebx + + add eax,edx + inc ecx + + jnz .L5 + + mov [edi+ecx*4-4],eax + + ; tail + pop ecx + and ecx,BYTE 1 + jz .L7 + mov al,[esi] + mov ah,[esi+1] + mov ebx,eax + mov edx,eax + shr eax,11 + and eax,BYTE 11111b + shr ebx,1 + and ebx,1111100000b + shl edx,10 + and edx,0111110000000000b + add eax,ebx + add eax,edx + mov [edi],al + mov [edi+1],ah + add esi,BYTE 2 + add edi,BYTE 2 + +.L7: + retn + + + + + + +_ConvertX86p16_8RGB332: + + ; check short + cmp ecx,BYTE 16 + ja .L3 + + +.L1: ; short loop + mov al,[esi+0] + mov ah,[esi+1] + mov ebx,eax + mov edx,eax + and eax,BYTE 11000b ; blue + shr eax,3 + and ebx,11100000000b ; green + shr ebx,6 + and edx,1110000000000000b ; red + shr edx,8 + add eax,ebx + add eax,edx + mov [edi],al + add esi,BYTE 2 + inc edi + dec ecx + jnz .L1 +.L2: + retn + +.L3: mov eax,edi + and eax,BYTE 11b + jz .L4 + mov al,[esi+0] + mov ah,[esi+1] + mov ebx,eax + mov edx,eax + and eax,BYTE 11000b ; blue + shr eax,3 + and ebx,11100000000b ; green + shr ebx,6 + and edx,1110000000000000b ; red + shr edx,8 + add eax,ebx + add eax,edx + mov [edi],al + add esi,BYTE 2 + inc edi + dec ecx + jmp SHORT .L3 + +.L4: ; save ebp + push ebp + + ; save count + push ecx + + ; unroll 4 times + shr ecx,2 + + ; prestep + mov dl,[esi+0] + mov bl,[esi+1] + mov dh,[esi+2] + +.L5: shl edx,16 + mov bh,[esi+3] + + shl ebx,16 + mov dl,[esi+4] + + mov dh,[esi+6] + mov bl,[esi+5] + + and edx,00011000000110000001100000011000b + mov bh,[esi+7] + + ror edx,16+3 + mov eax,ebx ; setup eax for reds + + and ebx,00000111000001110000011100000111b + and eax,11100000111000001110000011100000b ; reds + + ror ebx,16-2 + add esi,BYTE 8 + + ror eax,16 + add edi,BYTE 4 + + add eax,ebx + mov bl,[esi+1] ; greens + + add eax,edx + mov dl,[esi+0] ; blues + + mov [edi-4],eax + mov dh,[esi+2] + + dec ecx + jnz .L5 + + ; check tail + pop ecx + and ecx,BYTE 11b + jz .L7 + +.L6: ; tail + mov al,[esi+0] + mov ah,[esi+1] + mov ebx,eax + mov edx,eax + and eax,BYTE 11000b ; blue + shr eax,3 + and ebx,11100000000b ; green + shr ebx,6 + and edx,1110000000000000b ; red + shr edx,8 + add eax,ebx + add eax,edx + mov [edi],al + add esi,BYTE 2 + inc edi + dec ecx + jnz .L6 + +.L7: pop ebp + retn + +%ifidn __OUTPUT_FORMAT__,elf32 +section .note.GNU-stack noalloc noexec nowrite progbits +%endif diff --git a/distrib/sdl-1.2.15/src/hermes/x86p_32.asm b/distrib/sdl-1.2.15/src/hermes/x86p_32.asm new file mode 100644 index 0000000..2b47880 --- /dev/null +++ b/distrib/sdl-1.2.15/src/hermes/x86p_32.asm @@ -0,0 +1,1044 @@ +; +; x86 format converters for HERMES +; Some routines Copyright (c) 1998 Christian Nentwich (brn@eleet.mcb.at) +; This source code is licensed under the GNU LGPL +; +; Please refer to the file COPYING.LIB contained in the distribution for +; licensing conditions +; +; Most routines are (c) Glenn Fiedler (ptc@gaffer.org), used with permission +; + +BITS 32 + +%include "common.inc" + +SDL_FUNC _ConvertX86p32_32BGR888 +SDL_FUNC _ConvertX86p32_32RGBA888 +SDL_FUNC _ConvertX86p32_32BGRA888 +SDL_FUNC _ConvertX86p32_24RGB888 +SDL_FUNC _ConvertX86p32_24BGR888 +SDL_FUNC _ConvertX86p32_16RGB565 +SDL_FUNC _ConvertX86p32_16BGR565 +SDL_FUNC _ConvertX86p32_16RGB555 +SDL_FUNC _ConvertX86p32_16BGR555 +SDL_FUNC _ConvertX86p32_8RGB332 + +SECTION .text + +;; _Convert_* +;; Paramters: +;; ESI = source +;; EDI = dest +;; ECX = amount (NOT 0!!! (the _ConvertX86 routine checks for that though)) +;; Destroys: +;; EAX, EBX, EDX + + +_ConvertX86p32_32BGR888: + + ; check short + cmp ecx,BYTE 32 + ja .L3 + +.L1: ; short loop + mov edx,[esi] + bswap edx + ror edx,8 + mov [edi],edx + add esi,BYTE 4 + add edi,BYTE 4 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; save ebp + push ebp + + ; unroll four times + mov ebp,ecx + shr ebp,2 + + ; save count + push ecx + +.L4: mov eax,[esi] + mov ebx,[esi+4] + + bswap eax + + bswap ebx + + ror eax,8 + mov ecx,[esi+8] + + ror ebx,8 + mov edx,[esi+12] + + bswap ecx + + bswap edx + + ror ecx,8 + mov [edi+0],eax + + ror edx,8 + mov [edi+4],ebx + + mov [edi+8],ecx + mov [edi+12],edx + + add esi,BYTE 16 + add edi,BYTE 16 + + dec ebp + jnz .L4 + + ; check tail + pop ecx + and ecx,BYTE 11b + jz .L6 + +.L5: ; tail loop + mov edx,[esi] + bswap edx + ror edx,8 + mov [edi],edx + add esi,BYTE 4 + add edi,BYTE 4 + dec ecx + jnz .L5 + +.L6: pop ebp + retn + + + + +_ConvertX86p32_32RGBA888: + + ; check short + cmp ecx,BYTE 32 + ja .L3 + +.L1: ; short loop + mov edx,[esi] + rol edx,8 + mov [edi],edx + add esi,BYTE 4 + add edi,BYTE 4 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; save ebp + push ebp + + ; unroll four times + mov ebp,ecx + shr ebp,2 + + ; save count + push ecx + +.L4: mov eax,[esi] + mov ebx,[esi+4] + + rol eax,8 + mov ecx,[esi+8] + + rol ebx,8 + mov edx,[esi+12] + + rol ecx,8 + mov [edi+0],eax + + rol edx,8 + mov [edi+4],ebx + + mov [edi+8],ecx + mov [edi+12],edx + + add esi,BYTE 16 + add edi,BYTE 16 + + dec ebp + jnz .L4 + + ; check tail + pop ecx + and ecx,BYTE 11b + jz .L6 + +.L5: ; tail loop + mov edx,[esi] + rol edx,8 + mov [edi],edx + add esi,BYTE 4 + add edi,BYTE 4 + dec ecx + jnz .L5 + +.L6: pop ebp + retn + + + + +_ConvertX86p32_32BGRA888: + + ; check short + cmp ecx,BYTE 32 + ja .L3 + +.L1: ; short loop + mov edx,[esi] + bswap edx + mov [edi],edx + add esi,BYTE 4 + add edi,BYTE 4 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; save ebp + push ebp + + ; unroll four times + mov ebp,ecx + shr ebp,2 + + ; save count + push ecx + +.L4: mov eax,[esi] + mov ebx,[esi+4] + + mov ecx,[esi+8] + mov edx,[esi+12] + + bswap eax + + bswap ebx + + bswap ecx + + bswap edx + + mov [edi+0],eax + mov [edi+4],ebx + + mov [edi+8],ecx + mov [edi+12],edx + + add esi,BYTE 16 + add edi,BYTE 16 + + dec ebp + jnz .L4 + + ; check tail + pop ecx + and ecx,BYTE 11b + jz .L6 + +.L5: ; tail loop + mov edx,[esi] + bswap edx + mov [edi],edx + add esi,BYTE 4 + add edi,BYTE 4 + dec ecx + jnz .L5 + +.L6: pop ebp + retn + + + + +;; 32 bit RGB 888 to 24 BIT RGB 888 + +_ConvertX86p32_24RGB888: + + ; check short + cmp ecx,BYTE 32 + ja .L3 + +.L1: ; short loop + mov al,[esi] + mov bl,[esi+1] + mov dl,[esi+2] + mov [edi],al + mov [edi+1],bl + mov [edi+2],dl + add esi,BYTE 4 + add edi,BYTE 3 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; head + mov edx,edi + and edx,BYTE 11b + jz .L4 + mov al,[esi] + mov bl,[esi+1] + mov dl,[esi+2] + mov [edi],al + mov [edi+1],bl + mov [edi+2],dl + add esi,BYTE 4 + add edi,BYTE 3 + dec ecx + jmp SHORT .L3 + +.L4: ; unroll 4 times + push ebp + mov ebp,ecx + shr ebp,2 + + ; save count + push ecx + +.L5: mov eax,[esi] ; first dword eax = [A][R][G][B] + mov ebx,[esi+4] ; second dword ebx = [a][r][g][b] + + shl eax,8 ; eax = [R][G][B][.] + mov ecx,[esi+12] ; third dword ecx = [a][r][g][b] + + shl ebx,8 ; ebx = [r][g][b][.] + mov al,[esi+4] ; eax = [R][G][B][b] + + ror eax,8 ; eax = [b][R][G][B] (done) + mov bh,[esi+8+1] ; ebx = [r][g][G][.] + + mov [edi],eax + add edi,BYTE 3*4 + + shl ecx,8 ; ecx = [r][g][b][.] + mov bl,[esi+8+0] ; ebx = [r][g][G][B] + + rol ebx,16 ; ebx = [G][B][r][g] (done) + mov cl,[esi+8+2] ; ecx = [r][g][b][R] (done) + + mov [edi+4-3*4],ebx + add esi,BYTE 4*4 + + mov [edi+8-3*4],ecx + dec ebp + + jnz .L5 + + ; check tail + pop ecx + and ecx,BYTE 11b + jz .L7 + +.L6: ; tail loop + mov al,[esi] + mov bl,[esi+1] + mov dl,[esi+2] + mov [edi],al + mov [edi+1],bl + mov [edi+2],dl + add esi,BYTE 4 + add edi,BYTE 3 + dec ecx + jnz .L6 + +.L7: pop ebp + retn + + + + +;; 32 bit RGB 888 to 24 bit BGR 888 + +_ConvertX86p32_24BGR888: + + ; check short + cmp ecx,BYTE 32 + ja .L3 + +.L1: ; short loop + mov dl,[esi] + mov bl,[esi+1] + mov al,[esi+2] + mov [edi],al + mov [edi+1],bl + mov [edi+2],dl + add esi,BYTE 4 + add edi,BYTE 3 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; head + mov edx,edi + and edx,BYTE 11b + jz .L4 + mov dl,[esi] + mov bl,[esi+1] + mov al,[esi+2] + mov [edi],al + mov [edi+1],bl + mov [edi+2],dl + add esi,BYTE 4 + add edi,BYTE 3 + dec ecx + jmp SHORT .L3 + +.L4: ; unroll 4 times + push ebp + mov ebp,ecx + shr ebp,2 + + ; save count + push ecx + +.L5: + mov eax,[esi] ; first dword eax = [A][R][G][B] + mov ebx,[esi+4] ; second dword ebx = [a][r][g][b] + + bswap eax ; eax = [B][G][R][A] + + bswap ebx ; ebx = [b][g][r][a] + + mov al,[esi+4+2] ; eax = [B][G][R][r] + mov bh,[esi+4+4+1] ; ebx = [b][g][G][a] + + ror eax,8 ; eax = [r][B][G][R] (done) + mov bl,[esi+4+4+2] ; ebx = [b][g][G][R] + + ror ebx,16 ; ebx = [G][R][b][g] (done) + mov [edi],eax + + mov [edi+4],ebx + mov ecx,[esi+12] ; third dword ecx = [a][r][g][b] + + bswap ecx ; ecx = [b][g][r][a] + + mov cl,[esi+8] ; ecx = [b][g][r][B] (done) + add esi,BYTE 4*4 + + mov [edi+8],ecx + add edi,BYTE 3*4 + + dec ebp + jnz .L5 + + ; check tail + pop ecx + and ecx,BYTE 11b + jz .L7 + +.L6: ; tail loop + mov dl,[esi] + mov bl,[esi+1] + mov al,[esi+2] + mov [edi],al + mov [edi+1],bl + mov [edi+2],dl + add esi,BYTE 4 + add edi,BYTE 3 + dec ecx + jnz .L6 + +.L7: + pop ebp + retn + + + + +;; 32 bit RGB 888 to 16 BIT RGB 565 + +_ConvertX86p32_16RGB565: + ; check short + cmp ecx,BYTE 16 + ja .L3 + +.L1: ; short loop + mov bl,[esi+0] ; blue + mov al,[esi+1] ; green + mov ah,[esi+2] ; red + shr ah,3 + and al,11111100b + shl eax,3 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + dec ecx + jnz .L1 + +.L2: ; End of short loop + retn + + +.L3: ; head + mov ebx,edi + and ebx,BYTE 11b + jz .L4 + + mov bl,[esi+0] ; blue + mov al,[esi+1] ; green + mov ah,[esi+2] ; red + shr ah,3 + and al,11111100b + shl eax,3 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + dec ecx + +.L4: + ; save count + push ecx + + ; unroll twice + shr ecx,1 + + ; point arrays to end + lea esi,[esi+ecx*8] + lea edi,[edi+ecx*4] + + ; negative counter + neg ecx + jmp SHORT .L6 + +.L5: + mov [edi+ecx*4-4],eax +.L6: + mov eax,[esi+ecx*8] + + shr ah,2 + mov ebx,[esi+ecx*8+4] + + shr eax,3 + mov edx,[esi+ecx*8+4] + + shr bh,2 + mov dl,[esi+ecx*8+2] + + shl ebx,13 + and eax,000007FFh + + shl edx,8 + and ebx,07FF0000h + + and edx,0F800F800h + add eax,ebx + + add eax,edx + inc ecx + + jnz .L5 + + mov [edi+ecx*4-4],eax + + ; tail + pop ecx + test cl,1 + jz .L7 + + mov bl,[esi+0] ; blue + mov al,[esi+1] ; green + mov ah,[esi+2] ; red + shr ah,3 + and al,11111100b + shl eax,3 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + +.L7: + retn + + + + +;; 32 bit RGB 888 to 16 BIT BGR 565 + +_ConvertX86p32_16BGR565: + + ; check short + cmp ecx,BYTE 16 + ja .L3 + +.L1: ; short loop + mov ah,[esi+0] ; blue + mov al,[esi+1] ; green + mov bl,[esi+2] ; red + shr ah,3 + and al,11111100b + shl eax,3 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; head + mov ebx,edi + and ebx,BYTE 11b + jz .L4 + mov ah,[esi+0] ; blue + mov al,[esi+1] ; green + mov bl,[esi+2] ; red + shr ah,3 + and al,11111100b + shl eax,3 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + dec ecx + +.L4: ; save count + push ecx + + ; unroll twice + shr ecx,1 + + ; point arrays to end + lea esi,[esi+ecx*8] + lea edi,[edi+ecx*4] + + ; negative count + neg ecx + jmp SHORT .L6 + +.L5: + mov [edi+ecx*4-4],eax +.L6: + mov edx,[esi+ecx*8+4] + + mov bh,[esi+ecx*8+4] + mov ah,[esi+ecx*8] + + shr bh,3 + mov al,[esi+ecx*8+1] + + shr ah,3 + mov bl,[esi+ecx*8+5] + + shl eax,3 + mov dl,[esi+ecx*8+2] + + shl ebx,19 + and eax,0000FFE0h + + shr edx,3 + and ebx,0FFE00000h + + and edx,001F001Fh + add eax,ebx + + add eax,edx + inc ecx + + jnz .L5 + + mov [edi+ecx*4-4],eax + + ; tail + pop ecx + and ecx,BYTE 1 + jz .L7 + mov ah,[esi+0] ; blue + mov al,[esi+1] ; green + mov bl,[esi+2] ; red + shr ah,3 + and al,11111100b + shl eax,3 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + +.L7: + retn + + + + +;; 32 BIT RGB TO 16 BIT RGB 555 + +_ConvertX86p32_16RGB555: + + ; check short + cmp ecx,BYTE 16 + ja .L3 + +.L1: ; short loop + mov bl,[esi+0] ; blue + mov al,[esi+1] ; green + mov ah,[esi+2] ; red + shr ah,3 + and al,11111000b + shl eax,2 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; head + mov ebx,edi + and ebx,BYTE 11b + jz .L4 + mov bl,[esi+0] ; blue + mov al,[esi+1] ; green + mov ah,[esi+2] ; red + shr ah,3 + and al,11111000b + shl eax,2 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + dec ecx + +.L4: ; save count + push ecx + + ; unroll twice + shr ecx,1 + + ; point arrays to end + lea esi,[esi+ecx*8] + lea edi,[edi+ecx*4] + + ; negative counter + neg ecx + jmp SHORT .L6 + +.L5: + mov [edi+ecx*4-4],eax +.L6: + mov eax,[esi+ecx*8] + + shr ah,3 + mov ebx,[esi+ecx*8+4] + + shr eax,3 + mov edx,[esi+ecx*8+4] + + shr bh,3 + mov dl,[esi+ecx*8+2] + + shl ebx,13 + and eax,000007FFh + + shl edx,7 + and ebx,07FF0000h + + and edx,07C007C00h + add eax,ebx + + add eax,edx + inc ecx + + jnz .L5 + + mov [edi+ecx*4-4],eax + + ; tail + pop ecx + and ecx,BYTE 1 + jz .L7 + mov bl,[esi+0] ; blue + mov al,[esi+1] ; green + mov ah,[esi+2] ; red + shr ah,3 + and al,11111000b + shl eax,2 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + +.L7: + retn + + + + +;; 32 BIT RGB TO 16 BIT BGR 555 + +_ConvertX86p32_16BGR555: + + ; check short + cmp ecx,BYTE 16 + ja .L3 + + +.L1: ; short loop + mov ah,[esi+0] ; blue + mov al,[esi+1] ; green + mov bl,[esi+2] ; red + shr ah,3 + and al,11111000b + shl eax,2 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + dec ecx + jnz .L1 +.L2: + retn + +.L3: ; head + mov ebx,edi + and ebx,BYTE 11b + jz .L4 + mov ah,[esi+0] ; blue + mov al,[esi+1] ; green + mov bl,[esi+2] ; red + shr ah,3 + and al,11111000b + shl eax,2 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + dec ecx + +.L4: ; save count + push ecx + + ; unroll twice + shr ecx,1 + + ; point arrays to end + lea esi,[esi+ecx*8] + lea edi,[edi+ecx*4] + + ; negative counter + neg ecx + jmp SHORT .L6 + +.L5: + mov [edi+ecx*4-4],eax +.L6: + mov edx,[esi+ecx*8+4] + + mov bh,[esi+ecx*8+4] + mov ah,[esi+ecx*8] + + shr bh,3 + mov al,[esi+ecx*8+1] + + shr ah,3 + mov bl,[esi+ecx*8+5] + + shl eax,2 + mov dl,[esi+ecx*8+2] + + shl ebx,18 + and eax,00007FE0h + + shr edx,3 + and ebx,07FE00000h + + and edx,001F001Fh + add eax,ebx + + add eax,edx + inc ecx + + jnz .L5 + + mov [edi+ecx*4-4],eax + + ; tail + pop ecx + and ecx,BYTE 1 + jz .L7 + mov ah,[esi+0] ; blue + mov al,[esi+1] ; green + mov bl,[esi+2] ; red + shr ah,3 + and al,11111000b + shl eax,2 + shr bl,3 + add al,bl + mov [edi+0],al + mov [edi+1],ah + add esi,BYTE 4 + add edi,BYTE 2 + +.L7: + retn + + + + + +;; FROM 32 BIT RGB to 8 BIT RGB (rrrgggbbb) +;; This routine writes FOUR pixels at once (dword) and then, if they exist +;; the trailing three pixels +_ConvertX86p32_8RGB332: + + +.L_ALIGNED: + push ecx + + shr ecx,2 ; We will draw 4 pixels at once + jnz .L1 + + jmp .L2 ; short jump out of range :( + +.L1: + mov eax,[esi] ; first pair of pixels + mov edx,[esi+4] + + shr dl,6 + mov ebx,eax + + shr al,6 + and ah,0e0h + + shr ebx,16 + and dh,0e0h + + shr ah,3 + and bl,0e0h + + shr dh,3 + + or al,bl + + mov ebx,edx + or al,ah + + shr ebx,16 + or dl,dh + + and bl,0e0h + + or dl,bl + + mov ah,dl + + + + mov ebx,[esi+8] ; second pair of pixels + + mov edx,ebx + and bh,0e0h + + shr bl,6 + and edx,0e00000h + + shr edx,16 + + shr bh,3 + + ror eax,16 + or bl,dl + + mov edx,[esi+12] + or bl,bh + + mov al,bl + + mov ebx,edx + and dh,0e0h + + shr dl,6 + and ebx,0e00000h + + shr dh,3 + mov ah,dl + + shr ebx,16 + or ah,dh + + or ah,bl + + rol eax,16 + add esi,BYTE 16 + + mov [edi],eax + add edi,BYTE 4 + + dec ecx + jz .L2 ; L1 out of range for short jump :( + + jmp .L1 +.L2: + + pop ecx + and ecx,BYTE 3 ; mask out number of pixels to draw + + jz .L4 ; Nothing to do anymore + +.L3: + mov eax,[esi] ; single pixel conversion for trailing pixels + + mov ebx,eax + + shr al,6 + and ah,0e0h + + shr ebx,16 + + shr ah,3 + and bl,0e0h + + or al,ah + or al,bl + + mov [edi],al + + inc edi + add esi,BYTE 4 + + dec ecx + jnz .L3 + +.L4: + retn + +%ifidn __OUTPUT_FORMAT__,elf32 +section .note.GNU-stack noalloc noexec nowrite progbits +%endif |