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−(*
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−* Hedgewars, a free turn based strategy game
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−* Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
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−*
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−* This program is free software; you can redistribute it and/or modify
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−* it under the terms of the GNU General Public License as published by
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−* the Free Software Foundation; version 2 of the License
+
−*
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−* This program is distributed in the hope that it will be useful,
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−* but WITHOUT ANY WARRANTY; without even the implied warranty of
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−* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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−* GNU General Public License for more details.
+
−*
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−* You should have received a copy of the GNU General Public License
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−* along with this program; if not, write to the Free Software
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−* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+
−*)
+
−
+
−{$INCLUDE "options.inc"}
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−
+
−unit uMisc;
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−interface
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−
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−uses SDLh, uConsts, GLunit, uTypes;
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−
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−procedure movecursor(dx, dy: LongInt);
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−function  doSurfaceConversion(tmpsurf: PSDL_Surface): PSDL_Surface;
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−function  MakeScreenshot(filename: shortstring): boolean;
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−function  GetTeamStatString(p: PTeam): shortstring;
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−{$IFDEF SDL13}
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−function SDL_RectMake(x, y, width, height: LongInt): TSDL_Rect;
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−{$ELSE}
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−function SDL_RectMake(x, y: SmallInt; width, height: Word): TSDL_Rect;
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−{$ENDIF}
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−procedure initModule;
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−procedure freeModule;
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−
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−implementation
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−uses typinfo, sysutils, uVariables, uUtils
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−     {$IFDEF PNG_SCREENSHOTS}, PNGh, png {$ENDIF}
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−     {$IFNDEF USE_SDLTHREADS} {$IFDEF UNIX}, cthreads{$ENDIF} {$ENDIF};
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−
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−type PScreenshot = ^TScreenshot;
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−     TScreenshot = record
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−         buffer: PByte;
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−         filename: shortstring;
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−         width, height: LongInt;
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−         size: QWord;
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−         end;
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−
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−procedure movecursor(dx, dy: LongInt);
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−var x, y: LongInt;
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−begin
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−if (dx = 0) and (dy = 0) then exit;
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−
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−SDL_GetMouseState(@x, @y);
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−Inc(x, dx);
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−Inc(y, dy);
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−SDL_WarpMouse(x, y);
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−end;
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−
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−{$IFDEF PNG_SCREENSHOTS}
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−// this funtion will be executed in separate thread
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−function SaveScreenshot(screenshot: pointer): PtrInt;
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−var i: LongInt;
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−    png_ptr: ^png_struct;
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−    info_ptr: ^png_info;
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−    f: file;
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−    image: PScreenshot;
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−begin
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−image:= PScreenshot(screenshot);
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−
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−png_ptr := png_create_write_struct(png_get_libpng_ver(nil), nil, nil, nil);
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−if png_ptr = nil then
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−begin
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−    // AddFileLog('Error: Could not create png write struct.');
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−    exit(0);
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−end;
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−
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−info_ptr := png_create_info_struct(png_ptr);
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−if info_ptr = nil then
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−begin
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−    png_destroy_write_struct(@png_ptr, nil);
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−    // AddFileLog('Error: Could not create png info struct.');
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−    exit(0);
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−end;
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−
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−{$IOCHECKS OFF}
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−Assign(f, image^.filename);
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−Rewrite(f, 1);
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−if IOResult = 0 then
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−    begin
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−    png_init_pascal_io(png_ptr,@f);
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−    png_set_IHDR(png_ptr, info_ptr, image^.width, image^.height,
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−                 8, // bit depth
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−                 PNG_COLOR_TYPE_RGBA, PNG_INTERLACE_NONE,
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−                 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
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−    png_write_info(png_ptr, info_ptr);
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−    // glReadPixels and libpng number rows in different order
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−    for i:= image^.height-1 downto 0 do
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−        png_write_row(png_ptr, image^.buffer + i*4*image^.width);
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−    png_write_end(png_ptr, info_ptr);
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−    Close(f);
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−    end;
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−{$IOCHECKS ON}
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−
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−// free everything
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−png_destroy_write_struct(@png_ptr, @info_ptr);
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−FreeMem(image^.buffer, image^.size);
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−Dispose(image);
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−SaveScreenshot:= 0;
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−end;
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−
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−{$ELSE} // no PNG_SCREENSHOTS
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−
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−// this funtion will be executed in separate thread
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−function SaveScreenshot(screenshot: pointer): PtrInt;
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−var f: file;
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−    // Windows Bitmap Header
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−    head: array[0..53] of Byte = (
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−    $42, $4D,       // identifier ("BM")
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−    0, 0, 0, 0,     // file size
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−    0, 0, 0, 0,     // reserved
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−    54, 0, 0, 0,    // starting offset
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−    40, 0, 0, 0,    // header size
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−    0, 0, 0, 0,     // width
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−    0, 0, 0, 0,     // height
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−    1, 0,           // color planes
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−    32, 0,          // bit depth
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−    0, 0, 0, 0,     // compression method (uncompressed)
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−    0, 0, 0, 0,     // image size
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−    96, 0, 0, 0,    // horizontal resolution
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−    96, 0, 0, 0,    // vertical resolution
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−    0, 0, 0, 0,     // number of colors (all)
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−    0, 0, 0, 0      // number of important colors
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−    );
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−    image: PScreenshot;
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−    size: QWord;
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−begin
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−image:= PScreenshot(screenshot);
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−
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−size:= image^.Width*image^.Height*4;
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−
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−head[$02]:= (size + 54) and $ff;
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−head[$03]:= ((size + 54) shr 8) and $ff;
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−head[$04]:= ((size + 54) shr 16) and $ff;
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−head[$05]:= ((size + 54) shr 24) and $ff;
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−head[$12]:= image^.Width and $ff;
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−head[$13]:= (image^.Width shr 8) and $ff;
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−head[$14]:= (image^.Width shr 16) and $ff;
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−head[$15]:= (image^.Width shr 24) and $ff;
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−head[$16]:= image^.Height and $ff;
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−head[$17]:= (image^.Height shr 8) and $ff;
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−head[$18]:= (image^.Height shr 16) and $ff;
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−head[$19]:= (image^.Height shr 24) and $ff;
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−head[$22]:= size and $ff;
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−head[$23]:= (size shr 8) and $ff;
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−head[$24]:= (size shr 16) and $ff;
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−head[$25]:= (size shr 24) and $ff;
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−
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−{$IOCHECKS OFF}
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−Assign(f, image^.filename);
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−Rewrite(f, 1);
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−if IOResult = 0 then
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−    begin
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−    BlockWrite(f, head, sizeof(head));
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−    BlockWrite(f, image^.buffer^, size);
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−    Close(f);
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−    end
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−else
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−    begin
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−    //AddFileLog('Error: Could not write to ' + filename);
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−    end;
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−{$IOCHECKS ON}
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−
+
−// free everything
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−FreeMem(image^.buffer, image^.size);
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−Dispose(image);
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−SaveScreenshot:= 0;
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−end;
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−
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−{$ENDIF} // no PNG_SCREENSHOTS
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−
+
−// captures and saves the screen. returns true on success.
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−function MakeScreenshot(filename: shortstring): Boolean;
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−var p: Pointer;
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−    size: QWord;
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−    image: PScreenshot;
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−    format: GLenum;
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−    ext: string[4];
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−begin
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−// flash
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−ScreenFade:= sfFromWhite;
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−ScreenFadeValue:= sfMax;
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−ScreenFadeSpeed:= 5;
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−
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−{$IFDEF PNG_SCREENSHOTS}
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−format:= GL_RGBA;
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−ext:= '.png';
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−{$ELSE}
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−format:= GL_BGRA;
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−ext:= '.bmp';
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−{$ENDIF}
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−
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−size:= toPowerOf2(cScreenWidth) * toPowerOf2(cScreenHeight) * 4;
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−p:= GetMem(size); // will be freed in SaveScreenshot()
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−
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−// memory could not be allocated
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−if p = nil then
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−begin
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−    AddFileLog('Error: Could not allocate memory for screenshot.');
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−    exit(false);
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−end;
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−
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−// read pixel from the front buffer
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−glReadPixels(0, 0, cScreenWidth, cScreenHeight, format, GL_UNSIGNED_BYTE, p);
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−
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−// allocate and fill structure that will be passed to new thread
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−New(image); // will be disposed in SaveScreenshot()
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−image^.filename:= UserPathPrefix + '/Screenshots/' + filename + ext;
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−image^.width:= cScreenWidth;
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−image^.height:= cScreenHeight;
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−image^.size:= size;
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−image^.buffer:= p;
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−
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−{$IFDEF USE_SDLTHREADS}
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−SDL_CreateThread(@SaveScreenshot{$IFDEF SDL13}, nil{$ENDIF}, image);
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−{$ELSE}
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−BeginThread(@SaveScreenshot, image);
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−{$ENDIF}
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−MakeScreenshot:= true; // possibly it is not true but we will not wait for thread to terminate
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−end;
+
−
+
−// http://www.idevgames.com/forums/thread-5602-post-21860.html#pid21860
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−function doSurfaceConversion(tmpsurf: PSDL_Surface): PSDL_Surface;
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−var convertedSurf: PSDL_Surface;
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−begin
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−    if ((tmpsurf^.format^.bitsperpixel = 32) and (tmpsurf^.format^.rshift > tmpsurf^.format^.bshift)) or
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−       (tmpsurf^.format^.bitsperpixel = 24) then
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−        begin
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−        convertedSurf:= SDL_ConvertSurface(tmpsurf, conversionFormat, SDL_SWSURFACE);
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−        SDL_FreeSurface(tmpsurf);
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−        exit(convertedSurf);
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−        end;
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−
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−    exit(tmpsurf);
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−end;
+
−
+
−{$IFDEF SDL13}
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−function SDL_RectMake(x, y, width, height: LongInt): TSDL_Rect;
+
−{$ELSE}
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−function SDL_RectMake(x, y: SmallInt; width, height: Word): TSDL_Rect;
+
−{$ENDIF}
+
−begin
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−    SDL_RectMake.x:= x;
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−    SDL_RectMake.y:= y;
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−    SDL_RectMake.w:= width;
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−    SDL_RectMake.h:= height;
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−end;
+
−
+
−function GetTeamStatString(p: PTeam): shortstring;
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−var s: ansistring;
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−begin
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−    s:= p^.TeamName + ':' + IntToStr(p^.TeamHealth) + ':';
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−    GetTeamStatString:= s;
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−end;
+
−
+
−procedure initModule;
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−const SDL_PIXELFORMAT_ABGR8888 = (1 shl 31) or (6 shl 24) or (7 shl 20) or (6 shl 16) or (32 shl 8) or 4;
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−begin
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−    conversionFormat:= SDL_AllocFormat(SDL_PIXELFORMAT_ABGR8888);
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−end;
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−
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−procedure freeModule;
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−begin
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−    recordFileName:= '';
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−    SDL_FreeFormat(conversionFormat);
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−end;
+
−
+
−end.