index 49bdaa6b55252d2aa1edd94714294bd6db273d08..18f75c44ea3263119bd6bfbb429a614c05060e09 100644 (file)
+(* Copyright (C) Doom 2D: Forever Developers
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3 of the License ONLY.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *)
+{$INCLUDE ../shared/a_modes.inc}
unit e_graphics;
interface
uses
- SysUtils, Math, e_log, e_textures, SDL, GL, GLExt, MAPDEF;
+ {$INCLUDE ../nogl/noGLuses.inc}
+ {$IFDEF USE_SDL2}
+ SDL2,
+ {$ENDIF}
+ SysUtils, Classes, Math, e_log, e_texture,
+ MAPDEF, ImagingTypes, Imaging, ImagingUtility;
type
- TMirrorType=(M_NONE, M_HORIZONTAL, M_VERTICAL);
- TBlending=(B_NONE, B_BLEND, B_FILTER, B_INVERT);
+ TMirrorType=(None, Horizontal, Vertical);
+ TBlending=(None, Blend, Filter, Invert);
TPoint2i = record
X, Y: Integer;
end;
- TPoint = MAPDEF.TPoint; // TODO: create an utiltypes.pas or something
- // for other types like rect as well
-
TPoint2f = record
X, Y: Double;
end;
R, G, B: Byte;
end;
- PPoint = ^TPoint;
+ PDFPoint = ^TDFPoint;
PPoint2f = ^TPoint2f;
PRect = ^TRect;
PRectWH = ^TRectWH;
procedure e_InitGL();
procedure e_SetViewPort(X, Y, Width, Height: Word);
procedure e_ResizeWindow(Width, Height: Integer);
+procedure e_ResizeFramebuffer(Width, Height: Integer);
+procedure e_BlitFramebuffer(WinWidth, WinHeight: Integer);
procedure e_Draw(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
- Blending: Boolean; Mirror: TMirrorType = M_NONE);
+ Blending: Boolean; Mirror: TMirrorType = TMirrorType.None);
procedure e_DrawAdv(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
- Blending: Boolean; Angle: Single; RC: PPoint; Mirror: TMirrorType = M_NONE);
+ Blending: Boolean; Angle: Single; RC: PDFPoint; Mirror: TMirrorType = TMirrorType.None);
procedure e_DrawSize(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
- Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = M_NONE);
+ Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = TMirrorType.None);
procedure e_DrawSizeMirror(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
- Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = M_NONE);
+ Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = TMirrorType.None);
+
procedure e_DrawFill(ID: DWORD; X, Y: Integer; XCount, YCount: Word; Alpha: Integer;
- AlphaChannel: Boolean; Blending: Boolean);
+ AlphaChannel: Boolean; Blending: Boolean; ambientBlendMode: Boolean=false);
+
+procedure e_DrawFillX (id: DWORD; x, y, wdt, hgt: Integer; alpha: Integer; alphachannel: Boolean;
+ blending: Boolean; scale: Single; ambientBlendMode: Boolean=false);
+
+procedure e_AmbientQuad (x, y, w, h: Integer; r, g, b, a: Byte);
+
procedure e_DrawPoint(Size: Byte; X, Y: Integer; Red, Green, Blue: Byte);
procedure e_DrawLine(Width: Byte; X1, Y1, X2, Y2: Integer; Red, Green, Blue: Byte; Alpha: Byte = 0);
procedure e_DrawQuad(X1, Y1, X2, Y2: Integer; Red, Green, Blue: Byte; Alpha: Byte = 0);
procedure e_DrawFillQuad(X1, Y1, X2, Y2: Integer; Red, Green, Blue, Alpha: Byte;
- Blending: TBlending = B_NONE);
+ Blending: TBlending = TBlending.None);
+procedure e_DarkenQuad (x0, y0, x1, y1: Integer; a: Integer);
+procedure e_DarkenQuadWH (x, y, w, h: Integer; a: Integer);
+function e_CreateTextureImg (var img: TImageData; var ID: DWORD): Boolean;
function e_CreateTexture(FileName: string; var ID: DWORD): Boolean;
function e_CreateTextureEx(FileName: string; var ID: DWORD; fX, fY, fWidth, fHeight: Word): Boolean;
-function e_CreateTextureMem(pData: Pointer; var ID: DWORD): Boolean;
-function e_CreateTextureMemEx(pData: Pointer; var ID: DWORD; fX, fY, fWidth, fHeight: Word): Boolean;
+function e_CreateTextureMem(pData: Pointer; dataSize: LongInt; var ID: DWORD): Boolean;
+function e_CreateTextureMemEx(pData: Pointer; dataSize: LongInt; var ID: DWORD; fX, fY, fWidth, fHeight: Word): Boolean;
procedure e_GetTextureSize(ID: DWORD; Width, Height: PWord);
-function e_GetTextureSize2(ID: DWORD): TRectWH;
procedure e_DeleteTexture(ID: DWORD);
procedure e_RemoveAllTextures();
procedure e_TextureFontPrint(X, Y: GLint; Text: string; FontID: DWORD);
procedure e_TextureFontPrintEx(X, Y: GLint; Text: string; FontID: DWORD; Red, Green,
Blue: Byte; Scale: Single; Shadow: Boolean = False);
-procedure e_TextureFontPrintFmt(X, Y: GLint; Text: string; FontID: DWORD; Shadow: Boolean = False);
-procedure e_TextureFontGetSize(ID: DWORD; var CharWidth, CharHeight: Byte);
+procedure e_TextureFontPrintFmt(X, Y: GLint; Text: string; FontID: DWORD;
+ Shadow: Boolean = False; Newlines: Boolean = False);
+procedure e_TextureFontGetSize(ID: DWORD; out CharWidth, CharHeight: Byte);
procedure e_RemoveAllTextureFont();
+function e_TextureFontCharWidth (ch: Char; FontID: DWORD): Integer;
+procedure e_TextureFontPrintCharEx (X, Y: Integer; Ch: Char; FontID: DWORD; Shadow: Boolean = False);
+
procedure e_ReleaseEngine();
procedure e_BeginRender();
procedure e_Clear(Mask: TGLbitfield; Red, Green, Blue: Single); overload;
procedure e_Clear(); overload;
procedure e_EndRender();
-procedure e_SaveGLContext();
-procedure e_RestoreGLContext();
+{$IFDEF USE_SDL2}
+function e_GetGamma(win: PSDL_Window): Byte;
+procedure e_SetGamma(win: PSDL_Window;Gamma: Byte);
+{$ENDIF}
-function e_GetGamma(): Byte;
-procedure e_SetGamma(Gamma: Byte);
-
-procedure e_MakeScreenshot(FileName: string; Width, Height: Word);
+procedure e_MakeScreenshot(st: TStream; Width, Height: Word);
function _RGB(Red, Green, Blue: Byte): TRGB;
function _Point(X, Y: Integer): TPoint2i;
function _Rect(X, Y: Integer; Width, Height: Word): TRectWH;
function _TRect(L, T, R, B: LongInt): TRect;
+//function e_getTextGLId (ID: DWORD): GLuint;
var
e_Colors: TRGB;
+ e_NoGraphics: Boolean = False;
+ e_FastScreenshots: Boolean = true; // it's REALLY SLOW with `false`
+ g_dbg_scale: Single = 1.0;
+ r_pixel_scale: Single = 1.0;
+
implementation
+uses
+ paszlib, crc, utils;
+
+
type
TTexture = record
- ID: DWORD;
- Width: Word;
- Height: Word;
- Fmt: Word;
+ tx: GLTexture;
end;
TTextureFont = record
Base: Uint32;
CharWidth: Byte;
CharHeight: Byte;
- XC, YC, SPC: Word;
+ XC, YC: WORD;
+ SPC: ShortInt;
end;
TCharFont = record
end;
Space: ShortInt;
Height: ShortInt;
- Live: Boolean;
+ alive: Boolean;
end;
TSavedTexture = record
OldID: DWORD;
Pixels: Pointer;
end;
-
+
var
e_Textures: array of TTexture = nil;
e_TextureFonts: array of TTextureFont = nil;
e_CharFonts: array of TCharFont;
- e_SavedTextures: array of TSavedTexture;
+ //e_SavedTextures: array of TSavedTexture;
+ e_FBO: GLuint = 0;
+ e_RBO: GLuint = 0;
+ e_Frame: GLuint = 0;
+ e_FrameW: Integer = -1;
+ e_FrameH: Integer = -1;
+
+//function e_getTextGLId (ID: DWORD): GLuint; begin result := e_Textures[ID].tx.id; end;
//------------------------------------------------------------------
// Èíèöèàëèçèðóåò OpenGL
//------------------------------------------------------------------
procedure e_InitGL();
begin
- glDisable(GL_DEPTH_TEST);
- glEnable(GL_SCISSOR_TEST);
+ if e_NoGraphics then
+ begin
+ e_DummyTextures := True;
+ Exit;
+ end;
e_Colors.R := 255;
e_Colors.G := 255;
e_Colors.B := 255;
+ glDisable(GL_DEPTH_TEST);
+ glEnable(GL_SCISSOR_TEST);
glClearColor(0, 0, 0, 0);
end;
mat: Array [0..15] of GLDouble;
begin
+ if e_NoGraphics then Exit;
glLoadIdentity();
glScissor(X, Y, Width, Height);
glViewport(X, Y, Width, Height);
begin
if e_Textures <> nil then
for i := 0 to High(e_Textures) do
- if e_Textures[i].Width = 0 then
+ if e_Textures[i].tx.Width = 0 then
begin
Result := i;
Exit;
begin
Result := False;
- e_WriteLog('Loading texture from '+FileName, MSG_NOTIFY);
+ e_WriteLog('Loading texture from '+FileName, TMsgType.Notify);
find_id := FindTexture();
- if not LoadTexture(FileName, e_Textures[find_id].ID, e_Textures[find_id].Width,
- e_Textures[find_id].Height, @fmt) then Exit;
+ if not LoadTexture(FileName, e_Textures[find_id].tx, e_Textures[find_id].tx.Width,
+ e_Textures[find_id].tx.Height, @fmt) then Exit;
ID := find_id;
- e_Textures[ID].Fmt := fmt;
Result := True;
end;
find_id := FindTexture();
- if not LoadTextureEx(FileName, e_Textures[find_id].ID, fX, fY, fWidth, fHeight, @fmt) then exit;
-
- e_Textures[find_id].Width := fWidth;
- e_Textures[find_id].Height := fHeight;
- e_Textures[find_id].Fmt := fmt;
+ if not LoadTextureEx(FileName, e_Textures[find_id].tx, fX, fY, fWidth, fHeight, @fmt) then exit;
ID := find_id;
Result := True;
end;
-function e_CreateTextureMem(pData: Pointer; var ID: DWORD): Boolean;
+function e_CreateTextureMem(pData: Pointer; dataSize: LongInt; var ID: DWORD): Boolean;
var
find_id: DWORD;
fmt: Word;
find_id := FindTexture;
- if not LoadTextureMem(pData, e_Textures[find_id].ID, e_Textures[find_id].Width,
- e_Textures[find_id].Height, @fmt) then exit;
+ if not LoadTextureMem(pData, dataSize, e_Textures[find_id].tx, e_Textures[find_id].tx.Width, e_Textures[find_id].tx.Height, @fmt) then exit;
id := find_id;
- e_Textures[id].Fmt := fmt;
Result := True;
end;
-function e_CreateTextureMemEx(pData: Pointer; var ID: DWORD; fX, fY, fWidth, fHeight: Word): Boolean;
+function e_CreateTextureMemEx(pData: Pointer; dataSize: LongInt; var ID: DWORD; fX, fY, fWidth, fHeight: Word): Boolean;
var
find_id: DWORD;
fmt: Word;
find_id := FindTexture();
- if not LoadTextureMemEx(pData, e_Textures[find_id].ID, fX, fY, fWidth, fHeight, @fmt) then exit;
-
- e_Textures[find_id].Width := fWidth;
- e_Textures[find_id].Height := fHeight;
- e_Textures[find_id].Fmt := fmt;
+ if not LoadTextureMemEx(pData, dataSize, e_Textures[find_id].tx, fX, fY, fWidth, fHeight, @fmt) then exit;
ID := find_id;
Result := True;
end;
+function e_CreateTextureImg (var img: TImageData; var ID: DWORD): Boolean;
+var
+ find_id: DWORD;
+ fmt, tw, th: Word;
+begin
+ result := false;
+ find_id := FindTexture();
+ if not LoadTextureImg(img, e_Textures[find_id].tx, tw, th, @fmt) then exit;
+ ID := find_id;
+ result := True;
+end;
+
procedure e_GetTextureSize(ID: DWORD; Width, Height: PWord);
begin
- if Width <> nil then Width^ := e_Textures[ID].Width;
- if Height <> nil then Height^ := e_Textures[ID].Height;
+ if Width <> nil then Width^ := e_Textures[ID].tx.Width;
+ if Height <> nil then Height^ := e_Textures[ID].tx.Height;
end;
-function e_GetTextureSize2(ID: DWORD): TRectWH;
-var
- data: PChar;
- x, y: Integer;
- w, h: Word;
- a: Boolean;
- lastline: Integer;
-begin
- w := e_Textures[ID].Width;
- h := e_Textures[ID].Height;
- data := GetMemory(w*h*4);
- glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, e_Textures[ID].ID);
- glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
-
- Result.Y := 0;
- Result.X := 0;
- Result.Width := w;
- Result.Height := h;
-
- for y := h-1 downto 0 do
- begin
- lastline := y;
- a := True;
+procedure e_ResizeFramebuffer(Width, Height: Integer);
+begin
+ glBindTexture(GL_TEXTURE_2D, 0);
+ glBindRenderbuffer(GL_RENDERBUFFER, 0);
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
- for x := 1 to w-4 do
+ if e_Frame > 0 then
begin
- a := Byte((data+y*w*4+x*4+3)^) <> 0;
- if a then Break;
+ glDeleteTextures(1, @e_Frame);
+ e_Frame := 0;
end;
- if a then
+ if e_RBO > 0 then
begin
- Result.Y := h-lastline;
- Break;
+ glDeleteRenderbuffers(1, @e_RBO);
+ e_RBO := 0;
end;
- end;
- for y := 0 to h-1 do
- begin
- lastline := y;
- a := True;
-
- for x := 1 to w-4 do
+ if e_FBO > 0 then
begin
- a := Byte((data+y*w*4+x*4+3)^) <> 0;
- if a then Break;
+ glDeleteFramebuffers(1, @e_FBO);
+ e_FBO := 0;
end;
- if a then
- begin
- Result.Height := h-lastline-Result.Y;
- Break;
- end;
- end;
+ e_FrameW := Width;
+ e_FrameH := Height;
- for x := 0 to w-1 do
- begin
- lastline := x;
- a := True;
+ glGenFramebuffers(1, @e_FBO);
- for y := 1 to h-4 do
- begin
- a := Byte((data+y*w*4+x*4+3)^) <> 0;
- if a then Break;
- end;
+ glGenTextures(1, @e_Frame);
+ glBindTexture(GL_TEXTURE_2D, e_Frame);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, Width, Height, 0, GL_RGB, GL_UNSIGNED_BYTE, nil);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- if a then
- begin
- Result.X := lastline+1;
- Break;
- end;
- end;
-
- for x := w-1 downto 0 do
- begin
- lastline := x;
- a := True;
-
- for y := 1 to h-4 do
- begin
- a := Byte((data+y*w*4+x*4+3)^) <> 0;
- if a then Break;
- end;
-
- if a then
- begin
- Result.Width := lastline-Result.X+1;
- Break;
- end;
- end;
+ glGenRenderbuffers(1, @e_RBO);
+ glBindRenderbuffer(GL_RENDERBUFFER, e_RBO);
+ glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, Width, Height);
- FreeMemory(data);
+ glBindFramebuffer(GL_FRAMEBUFFER, e_FBO);
+ glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, e_Frame, 0);
+ glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, e_RBO);
end;
procedure e_ResizeWindow(Width, Height: Integer);
e_SetViewPort(0, 0, Width, Height);
end;
+procedure drawTxQuad (x0, y0, w, h, tw, th: Integer; u, v: single; Mirror: TMirrorType);
+var
+ x1, y1, tmp: Integer;
+begin
+ if (w < 1) or (h < 1) then exit;
+ x1 := x0+w;
+ y1 := y0+h;
+ if Mirror = TMirrorType.Horizontal then begin tmp := x1; x1 := x0; x0 := tmp; end
+ else if Mirror = TMirrorType.Vertical then begin tmp := y1; y1 := y0; y0 := tmp; end;
+ //HACK: make texture one pixel shorter, so it won't wrap
+ if (g_dbg_scale <> 1.0) then
+ begin
+ u := u*tw/(tw+1);
+ v := v*th/(th+1);
+ end;
+ glTexCoord2f(0, v); glVertex2i(x0, y0);
+ glTexCoord2f(0, 0); glVertex2i(x0, y1);
+ glTexCoord2f(u, 0); glVertex2i(x1, y1);
+ glTexCoord2f(u, v); glVertex2i(x1, y0);
+end;
+
+procedure e_BlitFramebuffer(WinWidth, WinHeight: Integer);
+begin
+ if (e_FBO = 0) or (e_Frame = 0) then exit;
+ glDisable(GL_BLEND);
+ glEnable(GL_TEXTURE_2D);
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+ glBindTexture(GL_TEXTURE_2D, e_Frame);
+ glColor4ub(255, 255, 255, 255);
+ e_SetViewPort(0, 0, WinWidth, WinHeight);
+ glBegin(GL_QUADS);
+ drawTxQuad(0, 0, WinWidth, WinHeight, e_FrameW, e_FrameH, 1, 1, TMirrorType.None);
+ glEnd();
+ glBindFramebuffer(GL_FRAMEBUFFER, e_FBO);
+ e_SetViewPort(0, 0, e_FrameW, e_FrameH);
+end;
+
procedure e_Draw(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
- Blending: Boolean; Mirror: TMirrorType = M_NONE);
+ Blending: Boolean; Mirror: TMirrorType = TMirrorType.None);
begin
+ if e_NoGraphics then Exit;
glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
if (Alpha > 0) or (AlphaChannel) or (Blending) then
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, e_Textures[ID].ID);
+ glBindTexture(GL_TEXTURE_2D, e_Textures[ID].tx.id);
glBegin(GL_QUADS);
+ drawTxQuad(X, Y, e_Textures[id].tx.width, e_Textures[id].tx.height, e_Textures[id].tx.width, e_Textures[id].tx.height, e_Textures[ID].tx.u, e_Textures[ID].tx.v, Mirror);
+
+ //u := e_Textures[ID].tx.u;
+ //v := e_Textures[ID].tx.v;
+
+ {
if Mirror = M_NONE then
begin
- glTexCoord2i(1, 0); glVertex2i(X + e_Textures[id].Width, Y);
- glTexCoord2i(0, 0); glVertex2i(X, Y);
- glTexCoord2i(0, -1); glVertex2i(X, Y + e_Textures[id].Height);
- glTexCoord2i(1, -1); glVertex2i(X + e_Textures[id].Width, Y + e_Textures[id].Height);
+ glTexCoord2f(u, 0); glVertex2i(X + e_Textures[id].tx.Width, Y);
+ glTexCoord2f(0, 0); glVertex2i(X, Y);
+ glTexCoord2f(0, -v); glVertex2i(X, Y + e_Textures[id].tx.Height);
+ glTexCoord2f(u, -v); glVertex2i(X + e_Textures[id].tx.Width, Y + e_Textures[id].tx.Height);
end
else
if Mirror = M_HORIZONTAL then
begin
- glTexCoord2i(1, 0); glVertex2i(X, Y);
- glTexCoord2i(0, 0); glVertex2i(X + e_Textures[id].Width, Y);
- glTexCoord2i(0, -1); glVertex2i(X + e_Textures[id].Width, Y + e_Textures[id].Height);
- glTexCoord2i(1, -1); glVertex2i(X, Y + e_Textures[id].Height);
+ glTexCoord2f(u, 0); glVertex2i(X, Y);
+ glTexCoord2f(0, 0); glVertex2i(X + e_Textures[id].tx.Width, Y);
+ glTexCoord2f(0, -v); glVertex2i(X + e_Textures[id].tx.Width, Y + e_Textures[id].tx.Height);
+ glTexCoord2f(u, -v); glVertex2i(X, Y + e_Textures[id].tx.Height);
end
else
if Mirror = M_VERTICAL then
begin
- glTexCoord2i(1, -1); glVertex2i(X + e_Textures[id].Width, Y);
- glTexCoord2i(0, -1); glVertex2i(X, Y);
- glTexCoord2i(0, 0); glVertex2i(X, Y + e_Textures[id].Height);
- glTexCoord2i(1, 0); glVertex2i(X + e_Textures[id].Width, Y + e_Textures[id].Height);
+ glTexCoord2f(u, -v); glVertex2i(X + e_Textures[id].tx.Width, Y);
+ glTexCoord2f(0, -v); glVertex2i(X, Y);
+ glTexCoord2f(0, 0); glVertex2i(X, Y + e_Textures[id].tx.Height);
+ glTexCoord2f(u, 0); glVertex2i(X + e_Textures[id].tx.Width, Y + e_Textures[id].tx.Height);
end;
+ }
glEnd();
end;
procedure e_DrawSize(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
- Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = M_NONE);
+ Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = TMirrorType.None);
+var
+ u, v: Single;
begin
+ if e_NoGraphics then Exit;
glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
if (Alpha > 0) or (AlphaChannel) or (Blending) then
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, e_Textures[ID].ID);
+ glBindTexture(GL_TEXTURE_2D, e_Textures[ID].tx.id);
+
+ u := e_Textures[ID].tx.u;
+ v := e_Textures[ID].tx.v;
glBegin(GL_QUADS);
- glTexCoord2i(0, 1); glVertex2i(X, Y);
- glTexCoord2i(1, 1); glVertex2i(X + Width, Y);
- glTexCoord2i(1, 0); glVertex2i(X + Width, Y + Height);
- glTexCoord2i(0, 0); glVertex2i(X, Y + Height);
+ glTexCoord2f(0, v); glVertex2i(X, Y);
+ glTexCoord2f(u, v); glVertex2i(X + Width, Y);
+ glTexCoord2f(u, 0); glVertex2i(X + Width, Y + Height);
+ glTexCoord2f(0, 0); glVertex2i(X, Y + Height);
glEnd();
glDisable(GL_BLEND);
end;
procedure e_DrawSizeMirror(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
- Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = M_NONE);
+ Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = TMirrorType.None);
begin
+ if e_NoGraphics then Exit;
glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
if (Alpha > 0) or (AlphaChannel) or (Blending) then
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, e_Textures[ID].ID);
+ glBindTexture(GL_TEXTURE_2D, e_Textures[ID].tx.id);
glBegin(GL_QUADS);
-
- if Mirror = M_NONE then
- begin
- glTexCoord2i(1, 0); glVertex2i(X + Width, Y);
- glTexCoord2i(0, 0); glVertex2i(X, Y);
- glTexCoord2i(0, -1); glVertex2i(X, Y + Height);
- glTexCoord2i(1, -1); glVertex2i(X + Width, Y + Height);
- end
- else
- if Mirror = M_HORIZONTAL then
- begin
- glTexCoord2i(1, 0); glVertex2i(X, Y);
- glTexCoord2i(0, 0); glVertex2i(X + Width, Y);
- glTexCoord2i(0, -1); glVertex2i(X + Width, Y + Height);
- glTexCoord2i(1, -1); glVertex2i(X, Y + Height);
- end
- else
- if Mirror = M_VERTICAL then
- begin
- glTexCoord2i(1, -1); glVertex2i(X + Width, Y);
- glTexCoord2i(0, -1); glVertex2i(X, Y);
- glTexCoord2i(0, 0); glVertex2i(X, Y + Height);
- glTexCoord2i(1, 0); glVertex2i(X + Width, Y + Height);
- end;
-
+ drawTxQuad(X, Y, Width, Height, e_Textures[id].tx.width, e_Textures[id].tx.height, e_Textures[ID].tx.u, e_Textures[ID].tx.v, Mirror);
glEnd();
glDisable(GL_BLEND);
end;
procedure e_DrawFill(ID: DWORD; X, Y: Integer; XCount, YCount: Word; Alpha: Integer;
- AlphaChannel: Boolean; Blending: Boolean);
+ AlphaChannel: Boolean; Blending: Boolean; ambientBlendMode: Boolean=false);
var
- X2, Y2: Integer;
-
+ X2, Y2, dx, w, h: Integer;
+ u, v: Single;
begin
+ if e_NoGraphics then Exit;
glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
+ ambientBlendMode := false;
- if (Alpha > 0) or (AlphaChannel) or (Blending) then
- glEnable(GL_BLEND)
+ if (Alpha > 0) or AlphaChannel or Blending then
+ begin
+ glEnable(GL_BLEND);
+ end
else
- glDisable(GL_BLEND);
+ begin
+ if not ambientBlendMode then glDisable(GL_BLEND);
+ end;
+ if AlphaChannel or (Alpha > 0) then glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ if (Alpha > 0) then glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255-Alpha);
+ if Blending then glBlendFunc(GL_SRC_ALPHA, GL_ONE);
- if (AlphaChannel) or (Alpha > 0) then
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ if (XCount = 0) then XCount := 1;
+ if (YCount = 0) then YCount := 1;
- if Alpha > 0 then
- glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255-Alpha);
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, e_Textures[ID].tx.id);
- if Blending then
- glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+ X2 := X+e_Textures[ID].tx.width*XCount;
+ Y2 := Y+e_Textures[ID].tx.height*YCount;
+
+ //k8: this SHOULD work... i hope
+ if (e_Textures[ID].tx.width = e_Textures[ID].tx.glwidth) and (e_Textures[ID].tx.height = e_Textures[ID].tx.glheight) then
+ begin
+ glBegin(GL_QUADS);
+ glTexCoord2i(0, YCount); glVertex2i(X, Y);
+ glTexCoord2i(XCount, YCount); glVertex2i(X2, Y);
+ glTexCoord2i(XCount, 0); glVertex2i(X2, Y2);
+ glTexCoord2i(0, 0); glVertex2i(X, Y2);
+ glEnd();
+ end
+ else
+ begin
+ glBegin(GL_QUADS);
+ // hard day's night
+ u := e_Textures[ID].tx.u;
+ v := e_Textures[ID].tx.v;
+ w := e_Textures[ID].tx.width;
+ h := e_Textures[ID].tx.height;
+ while YCount > 0 do
+ begin
+ dx := XCount;
+ x2 := X;
+ while dx > 0 do
+ begin
+ glTexCoord2f(0, v); glVertex2i(X, Y);
+ glTexCoord2f(u, v); glVertex2i(X+w, Y);
+ glTexCoord2f(u, 0); glVertex2i(X+w, Y+h);
+ glTexCoord2f(0, 0); glVertex2i(X, Y+h);
+ Inc(X, w);
+ Dec(dx);
+ end;
+ X := x2;
+ Inc(Y, h);
+ Dec(YCount);
+ end;
+ glEnd();
+ end;
+
+ glDisable(GL_BLEND);
+end;
+
+
+//TODO: overflow checks
+function intersectRect (var x0, y0, w0, h0: Integer; const x1, y1, w1, h1: Integer): Boolean;
+var
+ ex0, ey0: Integer;
+begin
+ result := false;
+ if (w0 < 1) or (h0 < 1) or (w1 < 1) or (h1 < 1) then exit;
+ // check for intersection
+ if (x0+w0 <= x1) or (y0+h0 <= y1) or (x1+w1 <= x0) or (y1+h1 <= y0) then exit;
+ if (x0 >= x1+w1) or (y0 >= y1+h1) or (x1 >= x0+h0) or (y1 >= y0+h0) then exit;
+ // ok, intersects
+ ex0 := x0+w0;
+ ey0 := y0+h0;
+ if (x0 < x1) then x0 := x1;
+ if (y0 < y1) then y0 := y1;
+ if (ex0 > x1+w1) then ex0 := x1+w1;
+ if (ey0 > y1+h1) then ey0 := y1+h1;
+ w0 := ex0-x0;
+ h0 := ey0-y0;
+ result := (w0 > 0) and (h0 > 0);
+end;
+
+
+procedure e_DrawFillX (id: DWORD; x, y, wdt, hgt: Integer; alpha: Integer; alphachannel: Boolean;
+ blending: Boolean; scale: Single; ambientBlendMode: Boolean=false);
+var
+ x2, y2: Integer;
+ {
+ wassc: Boolean;
+ scxywh: array[0..3] of GLint;
+ vpxywh: array[0..3] of GLint;
+ }
+ w, h, dw, cw, ch, yofs: Integer;
+ u, v, cu, cv: Single;
+ onlyOneY: Boolean;
+
+ {
+ procedure setScissorGLInternal (x, y, w, h: Integer);
+ begin
+ //if not scallowed then exit;
+ x := trunc(x*scale);
+ y := trunc(y*scale);
+ w := trunc(w*scale);
+ h := trunc(h*scale);
+ y := vpxywh[3]-(y+h);
+ if not intersectRect(x, y, w, h, scxywh[0], scxywh[1], scxywh[2], scxywh[3]) then
+ begin
+ glScissor(0, 0, 0, 0);
+ end
+ else
+ begin
+ //writeln(' (', x, ',', y, ')-(', w, ',', h, ')');
+ glScissor(x, y, w, h);
+ end;
+ end;
+ }
- if XCount = 0 then
- XCount := 1;
+begin
+ if e_NoGraphics then exit;
+ ambientBlendMode := false;
- if YCount = 0 then
- YCount := 1;
+ if (wdt < 1) or (hgt < 1) then exit;
+
+ if (wdt mod e_Textures[ID].tx.width = 0) and (hgt mod e_Textures[ID].tx.height = 0) then
+ begin
+ e_DrawFill(id, x, y, wdt div e_Textures[ID].tx.width, hgt div e_Textures[ID].tx.height, alpha, alphachannel, blending, ambientBlendMode);
+ exit;
+ end;
+
+ glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
+
+ if (Alpha > 0) or AlphaChannel or Blending then
+ begin
+ glEnable(GL_BLEND);
+ end
+ else
+ begin
+ if not ambientBlendMode then glDisable(GL_BLEND);
+ end;
+ if AlphaChannel or (Alpha > 0) then glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ if (Alpha > 0) then glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255-Alpha);
+ if Blending then glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, e_Textures[ID].ID);
+ glBindTexture(GL_TEXTURE_2D, e_Textures[ID].tx.id);
- X2 := X + e_Textures[ID].Width * XCount;
- Y2 := Y + e_Textures[ID].Height * YCount;
+ x2 := x+wdt;
+ y2 := y+hgt;
- glBegin(GL_QUADS);
- glTexCoord2i(0, YCount); glVertex2i(X, Y);
- glTexCoord2i(XCount, YCount); glVertex2i(X2, Y);
- glTexCoord2i(XCount, 0); glVertex2i(X2, Y2);
- glTexCoord2i(0, 0); glVertex2i(X, Y2);
- glEnd();
+ //k8: this SHOULD work... i hope
+ if {false and} (e_Textures[ID].tx.width = e_Textures[ID].tx.glwidth) and (e_Textures[ID].tx.height = e_Textures[ID].tx.glheight) then
+ begin
+ glBegin(GL_QUADS);
+ glTexCoord2f(0, hgt/e_Textures[ID].tx.height); glVertex2i(x, y);
+ glTexCoord2f(wdt/e_Textures[ID].tx.width, hgt/e_Textures[ID].tx.height); glVertex2i(x2, y);
+ glTexCoord2f(wdt/e_Textures[ID].tx.width, 0); glVertex2i(x2, y2);
+ glTexCoord2f(0, 0); glVertex2i(x, y2);
+ glEnd();
+ end
+ else
+ begin
+ // hard day's night; setup scissor
+ {
+ glGetIntegerv(GL_VIEWPORT, @vpxywh[0]);
+ wassc := (glIsEnabled(GL_SCISSOR_TEST) <> 0);
+ if wassc then glGetIntegerv(GL_SCISSOR_BOX, @scxywh[0]) else glGetIntegerv(GL_VIEWPORT, @scxywh[0]);
+ //writeln('(', scxywh[0], ',', scxywh[1], ')-(', scxywh[2], ',', scxywh[3], ')');
+ //glEnable(GL_SCISSOR_TEST);
+ setScissorGLInternal(x, y, wdt, hgt);
+ }
+ // draw quads
+ u := e_Textures[ID].tx.u;
+ v := e_Textures[ID].tx.v;
+ w := e_Textures[ID].tx.width;
+ h := e_Textures[ID].tx.height;
+ x2 := x;
+ if (hgt > h) then begin y += hgt-h; onlyOneY := false; end else onlyOneY := true;
+ glBegin(GL_QUADS);
+ while (hgt > 0) do
+ begin
+ if (hgt >= h) then begin ch := h; cv := v; yofs := 0; end else begin ch := hgt; cv := v/(h/hgt); yofs := h-hgt; end;
+ if onlyOneY then yofs := 0;
+ Dec(hgt, h);
+ dw := wdt;
+ x := x2;
+ while (dw > 0) do
+ begin
+ if (dw >= w) then begin cw := w; cu := u; end else begin cw := dw; cu := u/(w/dw); end;
+ Dec(dw, w);
+ glTexCoord2f(0, cv); glVertex2i(X, Y+yofs);
+ glTexCoord2f(cu, cv); glVertex2i(X+cw, Y+yofs);
+ glTexCoord2f(cu, 0); glVertex2i(X+cw, Y+ch+yofs);
+ glTexCoord2f(0, 0); glVertex2i(X, Y+ch+yofs);
+ Inc(X, w);
+ end;
+ Dec(Y, h);
+ end;
+ glEnd();
+ //if wassc then glEnable(GL_SCISSOR_TEST) else glDisable(GL_SCISSOR_TEST);
+ end;
glDisable(GL_BLEND);
end;
+
+procedure e_AmbientQuad (x, y, w, h: Integer; r, g, b, a: Byte);
+begin
+ if e_NoGraphics then exit;
+ if (w < 1) or (h < 1) then exit;
+ if (a <> 255) or ((r or g or b) <> 0) then
+ begin
+ glEnable(GL_BLEND);
+ glDisable(GL_TEXTURE_2D);
+ glColor4ub(r, g, b, a);
+ if ((r or g or b) <> 0) then
+ begin
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glBegin(GL_QUADS);
+ glVertex2i(x, y);
+ glVertex2i(x+w, y);
+ glVertex2i(x+w, y+h);
+ glVertex2i(x, y+h);
+ glEnd();
+ end;
+ glBlendFunc(GL_ZERO, GL_SRC_ALPHA);
+ glBegin(GL_QUADS);
+ glVertex2i(x, y);
+ glVertex2i(x+w, y);
+ glVertex2i(x+w, y+h);
+ glVertex2i(x, y+h);
+ glEnd();
+ glDisable(GL_BLEND);
+ end;
+end;
+
+
procedure e_DrawAdv(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
- Blending: Boolean; Angle: Single; RC: PPoint; Mirror: TMirrorType = M_NONE);
+ Blending: Boolean; Angle: Single; RC: PDFPoint; Mirror: TMirrorType = TMirrorType.None);
begin
+ if e_NoGraphics then Exit;
+
glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
if (Alpha > 0) or (AlphaChannel) or (Blending) then
end;
glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, e_Textures[id].ID);
+ glBindTexture(GL_TEXTURE_2D, e_Textures[id].tx.id);
glBegin(GL_QUADS); //0-1 1-1
//00 10
- if Mirror = M_NONE then
- begin
- glTexCoord2i(1, 0); glVertex2i(X + e_Textures[id].Width, Y);
- glTexCoord2i(0, 0); glVertex2i(X, Y);
- glTexCoord2i(0, -1); glVertex2i(X, Y + e_Textures[id].Height);
- glTexCoord2i(1, -1); glVertex2i(X + e_Textures[id].Width, Y + e_Textures[id].Height);
- end
- else
- if Mirror = M_HORIZONTAL then
- begin
- glTexCoord2i(1, 0); glVertex2i(X, Y);
- glTexCoord2i(0, 0); glVertex2i(X + e_Textures[id].Width, Y);
- glTexCoord2i(0, -1); glVertex2i(X + e_Textures[id].Width, Y + e_Textures[id].Height);
- glTexCoord2i(1, -1); glVertex2i(X, Y + e_Textures[id].Height);
- end
- else
- if Mirror = M_VERTICAL then
- begin
- glTexCoord2i(1, -1); glVertex2i(X + e_Textures[id].Width, Y);
- glTexCoord2i(0, -1); glVertex2i(X, Y);
- glTexCoord2i(0, 0); glVertex2i(X, Y + e_Textures[id].Height);
- glTexCoord2i(1, 0); glVertex2i(X + e_Textures[id].Width, Y + e_Textures[id].Height);
- end;
-
+ drawTxQuad(X, Y, e_Textures[id].tx.width, e_Textures[id].tx.height, e_Textures[id].tx.width, e_Textures[id].tx.height, e_Textures[ID].tx.u, e_Textures[ID].tx.v, Mirror);
glEnd();
if Angle <> 0 then
procedure e_DrawPoint(Size: Byte; X, Y: Integer; Red, Green, Blue: Byte);
begin
+ if e_NoGraphics then Exit;
glDisable(GL_TEXTURE_2D);
glColor3ub(Red, Green, Blue);
glPointSize(Size);
@@ -713,6 +928,7 @@ procedure e_DrawQuad(X1, Y1, X2, Y2: Integer; Red, Green, Blue: Byte; Alpha: Byt
var
nX1, nY1, nX2, nY2: Integer;
begin
+ if e_NoGraphics then Exit;
// Only top-left/bottom-right quad
if X1 > X2 then
begin
begin
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- end else
+ end
+ else
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
glColor4ub(Red, Green, Blue, 255-Alpha);
glLineWidth(1);
-
glBegin(GL_LINES);
nX1 := X1; nY1 := Y1;
nX2 := X2; nY2 := Y1;
glVertex2i(nX1, nY1);
glVertex2i(nX2, nY2);
glEnd();
-
glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
-
glDisable(GL_BLEND);
end;
procedure e_DrawFillQuad(X1, Y1, X2, Y2: Integer; Red, Green, Blue, Alpha: Byte;
- Blending: TBlending = B_NONE);
+ Blending: TBlending = TBlending.None);
begin
- if (Alpha > 0) or (Blending <> B_NONE) then
+ if e_NoGraphics then Exit;
+ if (Alpha > 0) or (Blending <> TBlending.None) then
glEnable(GL_BLEND)
else
glDisable(GL_BLEND);
- if Blending = B_BLEND then
+ if Blending = TBlending.Blend then
glBlendFunc(GL_SRC_ALPHA, GL_ONE)
else
- if Blending = B_FILTER then
+ if Blending = TBlending.Filter then
glBlendFunc(GL_DST_COLOR, GL_SRC_COLOR)
else
- if Blending = B_INVERT then
+ if Blending = TBlending.Invert then
glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ZERO)
else
if Alpha > 0 then
glDisable(GL_BLEND);
end;
+
+// ////////////////////////////////////////////////////////////////////////// //
+procedure e_DarkenQuad (x0, y0, x1, y1: Integer; a: Integer);
+begin
+ if (a < 0) then a := 0;
+ if (a > 255) then a := 255;
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_ZERO, GL_SRC_ALPHA);
+ glDisable(GL_TEXTURE_2D);
+ glColor4ub(0, 0, 0, Byte(255-a));
+ glBegin(GL_QUADS);
+ glVertex2i(x0, y0);
+ glVertex2i(x1, y0);
+ glVertex2i(x1, y1);
+ glVertex2i(x0, y1);
+ glEnd();
+ //glRect(x, y, x+w, y+h);
+ glColor4ub(1, 1, 1, 1);
+ glDisable(GL_BLEND);
+ //glBlendEquation(GL_FUNC_ADD);
+end;
+
+procedure e_DarkenQuadWH (x, y, w, h: Integer; a: Integer);
+begin
+ if (w > 0) and (h > 0) then e_DarkenQuad(x, y, x+w, y+h, a);
+end;
+
+
procedure e_DrawLine(Width: Byte; X1, Y1, X2, Y2: Integer; Red, Green, Blue: Byte; Alpha: Byte = 0);
begin
+ if e_NoGraphics then Exit;
// Pixel-perfect lines
if Width = 1 then
e_LineCorrection(X1, Y1, X2, Y2);
glDisable(GL_TEXTURE_2D);
glColor4ub(Red, Green, Blue, 255-Alpha);
glLineWidth(Width);
-
glBegin(GL_LINES);
glVertex2i(X1, Y1);
glVertex2i(X2, Y2);
glEnd();
-
glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
glDisable(GL_BLEND);
//------------------------------------------------------------------
procedure e_DeleteTexture(ID: DWORD);
begin
- glDeleteTextures(1, @e_Textures[ID].ID);
- e_Textures[ID].ID := 0;
- e_Textures[ID].Width := 0;
- e_Textures[ID].Height := 0;
+ if not e_NoGraphics then
+ glDeleteTextures(1, @e_Textures[ID].tx.id);
+ e_Textures[ID].tx.id := 0;
+ e_Textures[ID].tx.Width := 0;
+ e_Textures[ID].tx.Height := 0;
end;
//------------------------------------------------------------------
if e_Textures = nil then Exit;
for i := 0 to High(e_Textures) do
- if e_Textures[i].Width <> 0 then e_DeleteTexture(i);
+ if e_Textures[i].tx.Width <> 0 then e_DeleteTexture(i);
e_Textures := nil;
end;
procedure e_BeginRender();
begin
+ if e_NoGraphics then Exit;
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 0.0);
end;
procedure e_Clear(Mask: TGLbitfield; Red, Green, Blue: Single); overload;
begin
- glClearColor(Red, Green, Blue, 0);
- glClear(Mask);
+ if e_NoGraphics then Exit;
+ glClearColor(Red, Green, Blue, 0);
+ glClear(Mask);
end;
procedure e_Clear(); overload;
begin
- glClearColor(0, 0, 0, 0);
- glClear(GL_COLOR_BUFFER_BIT);
+ if e_NoGraphics then Exit;
+ glClearColor(0, 0, 0, 0);
+ glClear(GL_COLOR_BUFFER_BIT);
end;
procedure e_EndRender();
begin
+ if e_NoGraphics then Exit;
glPopMatrix();
end;
-procedure e_MakeScreenshot(FileName: String; Width, Height: Word);
-begin
-end;
-
-{type
- aRGB = Array [0..1] of TRGB;
- PaRGB = ^aRGB;
-
- TByteArray = Array [0..1] of Byte;
- PByteArray = ^TByteArray;
-
-var
- FILEHEADER: BITMAPFILEHEADER;
- INFOHEADER: BITMAPINFOHEADER;
- pixels: PByteArray;
- tmp: Byte;
- i: Integer;
- F: File of Byte;
-
-begin
- if (Width mod 4) > 0 then
- Width := Width + 4 - (Width mod 4);
-
- GetMem(pixels, Width*Height*3);
- glReadPixels(0, 0, Width, Height, GL_RGB, GL_UNSIGNED_BYTE, pixels);
-
- for i := 0 to Width * Height - 1 do
- with PaRGB(pixels)[i] do
- begin
- tmp := R;
- R := B;
- B := tmp;
- end;
-
- with FILEHEADER do
- begin
- bfType := $4D42; // "BM"
- bfSize := Width*Height*3 + SizeOf(BITMAPFILEHEADER) + SizeOf(BITMAPINFOHEADER);
- bfReserved1 := 0;
- bfReserved2 := 0;
- bfOffBits := SizeOf(BITMAPFILEHEADER) + SizeOf(BITMAPINFOHEADER);
- end;
-
- with INFOHEADER do
- begin
- biSize := SizeOf(BITMAPINFOHEADER);
- biWidth := Width;
- biHeight := Height;
- biPlanes := 1;
- biBitCount := 24;
- biCompression := 0;
- biSizeImage := Width*Height*3;
- biXPelsPerMeter := 0;
- biYPelsPerMeter := 0;
- biClrUsed := 0;
- biClrImportant := 0;
- end;
-
- AssignFile(F, FileName);
- Rewrite(F);
-
- BlockWrite(F, FILEHEADER, SizeOf(FILEHEADER));
- BlockWrite(F, INFOHEADER, SizeOf(INFOHEADER));
- BlockWrite(F, pixels[0], Width*Height*3);
-
- CloseFile(F);
-
- FreeMem(pixels);
-end;}
-
-function e_GetGamma(): Byte;
+{$IFDEF USE_SDL2}
+function e_GetGamma(win: PSDL_Window): Byte;
var
ramp: array [0..256*3-1] of Word;
rgb: array [0..2] of Double;
A, B: double;
i, j: integer;
begin
+ Result := 0;
+ if e_NoGraphics then Exit;
rgb[0] := 1.0;
rgb[1] := 1.0;
rgb[2] := 1.0;
- SDL_GetGammaRamp(@ramp[0], @ramp[256], @ramp[512]);
+ SDL_GetWindowGammaRamp(win, @ramp[0], @ramp[256], @ramp[512]);
for i := 0 to 2 do
begin
Result := 100 - Trunc(((rgb[0] + rgb[1] + rgb[2])/3 - 0.23) * 100/(2.7 - 0.23));
end;
-procedure e_SetGamma(Gamma: Byte);
+procedure e_SetGamma(win: PSDL_Window; Gamma: Byte);
var
ramp: array [0..256*3-1] of Word;
i: integer;
r: double;
g: double;
begin
+ if e_NoGraphics then Exit;
g := (100 - Gamma)*(2.7 - 0.23)/100 + 0.23;
for i := 0 to 255 do
ramp[i + 512] := trunc(r);
end;
- SDL_SetGammaRamp(@ramp[0], @ramp[256], @ramp[512]);
+ SDL_SetWindowGammaRamp(win, @ramp[0], @ramp[256], @ramp[512]);
end;
+{$ENDIF}
function e_CharFont_Create(sp: ShortInt=0): DWORD;
var
i, id: DWORD;
begin
- e_WriteLog('Creating CharFont...', MSG_NOTIFY);
+ e_WriteLog('Creating CharFont...', TMsgType.Notify);
id := DWORD(-1);
if e_CharFonts <> nil then
for i := 0 to High(e_CharFonts) do
- if not e_CharFonts[i].Live then
+ if not e_CharFonts[i].alive then
begin
id := i;
Break;
end;
Space := sp;
- Live := True;
+ alive := True;
end;
Result := id;
var
a: Integer;
begin
+ if e_NoGraphics then Exit;
if Text = '' then Exit;
if e_CharFonts = nil then Exit;
if Integer(FontID) > High(e_CharFonts) then Exit;
a: Integer;
c: TRGB;
begin
+ if e_NoGraphics then Exit;
if Text = '' then Exit;
if e_CharFonts = nil then Exit;
if Integer(FontID) > High(e_CharFonts) then Exit;
tc, c: TRGB;
w, h: Word;
begin
+ if e_NoGraphics then Exit;
if Text = '' then Exit;
if e_CharFonts = nil then Exit;
if Integer(FontID) > High(e_CharFonts) then Exit;
procedure e_CharFont_GetSizeFmt(FontID: DWORD; Text: string; var w, h: Word);
var
a, lines, len: Integer;
- h2, w2: Word;
+ h2, w2, tw, th: Word;
begin
w2 := 0;
- w := 0;
- h := 0;
+ h2 := 0;
+ tw := 0;
+ th := 0;
if Text = '' then Exit;
if e_CharFonts = nil then Exit;
if Text[a] = #10 then
begin
Inc(lines);
- if w2 > w then
- begin
- w := w2;
- w2 := 0;
- end;
- continue;
- end
- else if Text[a] in [#1, #2, #3, #4, #18, #19, #20, #21] then
+ if w2 > tw then tw := w2;
+ w2 := 0;
continue;
+ end;
with Chars[Ord(Text[a])] do
- if TextureID <> -1 then
- begin
- w2 := w2 + Width + IfThen(a = len, 0, Space);
- e_GetTextureSize(TextureID, nil, @h2);
- if h2 > h then h := h2;
- end;
+ if TextureID <> -1 then
+ begin
+ w2 := w2 + Width + IfThen(a = len, 0, Space);
+ e_GetTextureSize(TextureID, nil, @h2);
+ if h2 > th then th := h2;
+ end;
end;
end;
- if w2 > w then
- w := w2;
- h := h * lines;
+ if w2 > tw then
+ tw := w2;
+
+ w := tw;
+ h := th * lines;
end;
function e_CharFont_GetMaxWidth(FontID: DWORD): Word;
for a := 0 to High(Chars) do
if Chars[a].TextureID <> -1 then e_DeleteTexture(Chars[a].TextureID);
- e_CharFonts[FontID].Live := False;
+ e_CharFonts[FontID].alive := False;
end;
procedure e_CharFont_RemoveAll();
procedure e_TextureFontBuild(Tex: DWORD; var FontID: DWORD; XCount, YCount: Word;
Space: ShortInt=0);
var
+{$IFDEF NOGL_LISTS}
loop1 : GLuint;
cx, cy : real;
+{$ENDIF}
i, id: DWORD;
begin
- e_WriteLog('Creating texture font...', MSG_NOTIFY);
+ if e_NoGraphics then Exit;
+ e_WriteLog('Creating texture font...', TMsgType.Notify);
id := DWORD(-1);
with e_TextureFonts[id] do
begin
+{$IFDEF NOGL_LISTS}
Base := glGenLists(XCount*YCount);
- TextureID := e_Textures[Tex].ID;
- CharWidth := (e_Textures[Tex].Width div XCount)+Space;
- CharHeight := e_Textures[Tex].Height div YCount;
+{$ENDIF}
+ TextureID := e_Textures[Tex].tx.id;
+ CharWidth := (e_Textures[Tex].tx.Width div XCount)+Space;
+ CharHeight := e_Textures[Tex].tx.Height div YCount;
XC := XCount;
YC := YCount;
Texture := Tex;
SPC := Space;
end;
- glBindTexture(GL_TEXTURE_2D, e_Textures[Tex].ID);
+{$IFDEF NOGL_LISTS}
+ glBindTexture(GL_TEXTURE_2D, e_Textures[Tex].tx.id);
for loop1 := 0 to XCount*YCount-1 do
begin
cx := (loop1 mod XCount)/XCount;
glNewList(e_TextureFonts[id].Base+loop1, GL_COMPILE);
glBegin(GL_QUADS);
glTexCoord2f(cx, 1.0-cy-1/YCount);
- glVertex2d(0, e_Textures[Tex].Height div YCount);
+ glVertex2i(0, e_Textures[Tex].tx.Height div YCount);
glTexCoord2f(cx+1/XCount, 1.0-cy-1/YCount);
- glVertex2i(e_Textures[Tex].Width div XCount, e_Textures[Tex].Height div YCount);
+ glVertex2i(e_Textures[Tex].tx.Width div XCount, e_Textures[Tex].tx.Height div YCount);
glTexCoord2f(cx+1/XCount, 1.0-cy);
- glVertex2i(e_Textures[Tex].Width div XCount, 0);
+ glVertex2i(e_Textures[Tex].tx.Width div XCount, 0);
glTexCoord2f(cx, 1.0-cy);
glVertex2i(0, 0);
glEnd();
- glTranslated((e_Textures[Tex].Width div XCount)+Space, 0, 0);
+ glTranslated((e_Textures[Tex].tx.Width div XCount)+Space, 0, 0);
glEndList();
end;
+{$ENDIF}
FontID := id;
end;
-procedure e_TextureFontBuildInPlace(id: DWORD);
-var
- loop1 : GLuint;
- cx, cy : real;
- XCount, YCount, Space: Integer;
- {i,} Tex: DWORD;
+procedure e_TextureFontKill(FontID: DWORD);
begin
- with e_TextureFonts[id] do
- begin
- Base := glGenLists(XC*YC);
- TextureID := e_Textures[Texture].ID;
- XCount := XC;
- YCount := YC;
- Space := SPC;
- Tex := Texture;
- end;
-
- glBindTexture(GL_TEXTURE_2D, e_Textures[Tex].ID);
- for loop1 := 0 to XCount*YCount-1 do
- begin
- cx := (loop1 mod XCount)/XCount;
- cy := (loop1 div YCount)/YCount;
-
- glNewList(e_TextureFonts[id].Base+loop1, GL_COMPILE);
- glBegin(GL_QUADS);
- glTexCoord2f(cx, 1.0-cy-1/YCount);
- glVertex2d(0, e_Textures[Tex].Height div YCount);
-
- glTexCoord2f(cx+1/XCount, 1.0-cy-1/YCount);
- glVertex2i(e_Textures[Tex].Width div XCount, e_Textures[Tex].Height div YCount);
-
- glTexCoord2f(cx+1/XCount, 1.0-cy);
- glVertex2i(e_Textures[Tex].Width div XCount, 0);
+ if e_NoGraphics then Exit;
+{$IFDEF NOGL_LISTS}
+ glDeleteLists(e_TextureFonts[FontID].Base, 256);
+{$ENDIF}
+ e_TextureFonts[FontID].Base := 0;
+end;
- glTexCoord2f(cx, 1.0-cy);
+{$IFNDEF NOGL_LISTS}
+procedure e_TextureFontDrawChar(ch: Char; FontID: DWORD);
+ var
+ index: Integer;
+ cx, cy: GLfloat;
+ Tex: Integer;
+ Width, Height: Integer;
+ XCount, YCount: Integer;
+begin
+ index := Ord(ch) - 32;
+ Tex := e_TextureFonts[FontID].Texture;
+ Width := e_Textures[Tex].tx.Width;
+ Height := e_Textures[Tex].tx.Height;
+ XCount := e_TextureFonts[FontID].XC;
+ YCount := e_TextureFonts[FontID].YC;
+ cx := (index mod XCount)/XCount;
+ cy := (index div YCount)/YCount;
+ glBegin(GL_QUADS);
+ glTexCoord2f(cx, 1 - cy - 1/YCount);
+ glVertex2i(0, Height div YCount);
+ glTexCoord2f(cx + 1/XCount, 1 - cy - 1/YCount);
+ glVertex2i(Width div XCount, Height div YCount);
+ glTexCoord2f(cx + 1/XCount, 1 - cy);
+ glVertex2i(Width div XCount, 0);
+ glTexCoord2f(cx, 1 - cy);
glVertex2i(0, 0);
- glEnd();
- glTranslated((e_Textures[Tex].Width div XCount)+Space, 0, 0);
- glEndList();
- end;
+ glEnd();
+ glTranslatef((e_Textures[Tex].tx.Width div XCount) + e_TextureFonts[FontID].SPC, 0, 0);
end;
-procedure e_TextureFontKill(FontID: DWORD);
+procedure e_TextureFontDrawString(Text: String; FontID: DWORD);
+ var
+ i: Integer;
begin
- glDeleteLists(e_TextureFonts[FontID].Base, 256);
- e_TextureFonts[FontID].Base := 0;
+ for i := 1 to High(Text) do
+ e_TextureFontDrawChar(Text[i], FontID);
end;
+{$ENDIF}
procedure e_TextureFontPrint(X, Y: GLint; Text: string; FontID: DWORD);
begin
+ if e_NoGraphics then Exit;
if Integer(FontID) > High(e_TextureFonts) then Exit;
if Text = '' then Exit;
glPushMatrix;
glBindTexture(GL_TEXTURE_2D, e_TextureFonts[FontID].TextureID);
glEnable(GL_TEXTURE_2D);
- glTranslated(x, y, 0);
+ glTranslatef(x, y, 0);
+{$IFDEF NOGL_LISTS}
glListBase(DWORD(Integer(e_TextureFonts[FontID].Base)-32));
glCallLists(Length(Text), GL_UNSIGNED_BYTE, PChar(Text));
+{$ELSE}
+ e_TextureFontDrawString(Text, FontID);
+{$ENDIF}
glDisable(GL_TEXTURE_2D);
glPopMatrix;
// god forgive me for this, but i cannot figure out how to do it without lists
procedure e_TextureFontPrintChar(X, Y: Integer; Ch: Char; FontID: DWORD; Shadow: Boolean = False);
begin
+ if e_NoGraphics then Exit;
glPushMatrix;
if Shadow then
begin
glColor4ub(0, 0, 0, 128);
- glTranslated(X+1, Y+1, 0);
+ glTranslatef(X+1, Y+1, 0);
+{$IFDEF NOGL_LISTS}
glCallLists(1, GL_UNSIGNED_BYTE, @Ch);
+{$ELSE}
+ e_TextureFontDrawChar(Ch, FontID);
+{$ENDIF}
glPopMatrix;
glPushMatrix;
end;
glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
- glTranslated(X, Y, 0);
+ glTranslatef(X, Y, 0);
+{$IFDEF NOGL_LISTS}
glCallLists(1, GL_UNSIGNED_BYTE, @Ch);
+{$ELSE}
+ e_TextureFontDrawChar(Ch, FontID);
+{$ENDIF}
glPopMatrix;
end;
-procedure e_TextureFontPrintFmt(X, Y: Integer; Text: string; FontID: DWORD; Shadow: Boolean = False);
+procedure e_TextureFontPrintCharEx (X, Y: Integer; Ch: Char; FontID: DWORD; Shadow: Boolean = False);
+begin
+ glBindTexture(GL_TEXTURE_2D, e_TextureFonts[FontID].TextureID);
+ glEnable(GL_TEXTURE_2D);
+ //glListBase(DWORD(Integer(e_TextureFonts[FontID].Base)-32));
+
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glEnable(GL_BLEND);
+ e_TextureFontPrintChar(X, Y, Ch, FontID, Shadow);
+ glDisable(GL_TEXTURE_2D);
+ glDisable(GL_BLEND);
+end;
+
+function e_TextureFontCharWidth (ch: Char; FontID: DWORD): Integer;
+begin
+ result := e_TextureFonts[FontID].CharWidth;
+end;
+
+procedure e_TextureFontPrintFmt(X, Y: GLint; Text: string; FontID: DWORD;
+ Shadow: Boolean = False; Newlines: Boolean = False);
var
a, TX, TY, len: Integer;
tc, c: TRGB;
- w: Word;
+ w, h: Word;
begin
+ if e_NoGraphics then Exit;
if Text = '' then Exit;
if e_TextureFonts = nil then Exit;
if Integer(FontID) > High(e_TextureFonts) then Exit;
len := Length(Text);
w := e_TextureFonts[FontID].CharWidth;
+ h := e_TextureFonts[FontID].CharHeight;
with e_TextureFonts[FontID] do
begin
glBindTexture(GL_TEXTURE_2D, e_TextureFonts[FontID].TextureID);
glEnable(GL_TEXTURE_2D);
+
+{$IFDEF NOGL_LISTS}
glListBase(DWORD(Integer(e_TextureFonts[FontID].Base)-32));
+{$ENDIF}
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
for a := 1 to len do
begin
case Text[a] of
- {#10: // line feed
+ #10: // line feed
begin
- TX := X;
- TY := TY + h;
- continue;
- end;}
+ if Newlines then
+ begin
+ TX := X;
+ TY := TY + h;
+ continue;
+ end;
+ end;
#1: // black
begin
c.R := 0; c.G := 0; c.B := 0;
procedure e_TextureFontPrintEx(X, Y: GLint; Text: string; FontID: DWORD; Red, Green,
Blue: Byte; Scale: Single; Shadow: Boolean = False);
begin
+ if e_NoGraphics then Exit;
if Text = '' then Exit;
glPushMatrix;
glBindTexture(GL_TEXTURE_2D, e_TextureFonts[FontID].TextureID);
glEnable(GL_TEXTURE_2D);
+
+{$IFDEF NOGL_LISTS}
glListBase(DWORD(Integer(e_TextureFonts[FontID].Base)-32));
+{$ENDIF}
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
if Shadow then
begin
glColor4ub(0, 0, 0, 128);
- glTranslated(x+1, y+1, 0);
+ glTranslatef(x+1, y+1, 0);
glScalef(Scale, Scale, 0);
+{$IFDEF NOGL_LISTS}
glCallLists(Length(Text), GL_UNSIGNED_BYTE, PChar(Text));
+{$ELSE}
+ e_TextureFontDrawString(Text, FontID);
+{$ENDIF}
glPopMatrix;
glPushMatrix;
end;
glColor4ub(Red, Green, Blue, 255);
- glTranslated(x, y, 0);
+ glTranslatef(x, y, 0);
glScalef(Scale, Scale, 0);
+{$IFDEF NOGL_LISTS}
glCallLists(Length(Text), GL_UNSIGNED_BYTE, PChar(Text));
+{$ELSE}
+ e_TextureFontDrawString(Text, FontID);
+{$ENDIF}
glDisable(GL_TEXTURE_2D);
glPopMatrix;
glDisable(GL_BLEND);
end;
-procedure e_TextureFontGetSize(ID: DWORD; var CharWidth, CharHeight: Byte);
+procedure e_TextureFontGetSize(ID: DWORD; out CharWidth, CharHeight: Byte);
begin
+ CharWidth := 16;
+ CharHeight := 16;
+ if e_NoGraphics then Exit;
if Integer(ID) > High(e_TextureFonts) then
Exit;
CharWidth := e_TextureFonts[ID].CharWidth;
var
i: integer;
begin
+ if e_NoGraphics then Exit;
if e_TextureFonts = nil then Exit;
for i := 0 to High(e_TextureFonts) do
if e_TextureFonts[i].Base <> 0 then
begin
+{$IFDEF NOGL_LISTS}
glDeleteLists(e_TextureFonts[i].Base, 256);
+{$ENDIF}
e_TextureFonts[i].Base := 0;
end;
e_TextureFonts := nil;
end;
-procedure e_SaveGLContext();
-var
- PxLen: Cardinal;
- i: Integer;
-begin
- e_WriteLog('Backing up GL context:', MSG_NOTIFY);
-
- glPushAttrib(GL_ALL_ATTRIB_BITS);
- glPushClientAttrib(GL_CLIENT_ALL_ATTRIB_BITS);
-
- if e_Textures <> nil then
- begin
- e_WriteLog(' Backing up textures...', MSG_NOTIFY);
- SetLength(e_SavedTextures, Length(e_Textures));
- for i := Low(e_Textures) to High(e_Textures) do
- begin
- e_SavedTextures[i].Pixels := nil;
- if e_Textures[i].Width > 0 then
- begin
- with e_SavedTextures[i] do
- begin
- PxLen := 3;
- if e_Textures[i].Fmt = GL_RGBA then Inc(PxLen);
- Pixels := GetMem(PxLen * e_Textures[i].Width * e_Textures[i].Height);
- glBindTexture(GL_TEXTURE_2D, e_Textures[i].ID);
- glGetTexImage(GL_TEXTURE_2D, 0, e_Textures[i].Fmt, GL_UNSIGNED_BYTE, Pixels);
- glBindTexture(GL_TEXTURE_2D, 0);
- OldID := e_Textures[i].ID;
- TexId := i;
- end;
- end;
- end;
- end;
-
- if e_TextureFonts <> nil then
- begin
- e_WriteLog(' Releasing texturefonts...', MSG_NOTIFY);
- for i := 0 to High(e_TextureFonts) do
- if e_TextureFonts[i].Base <> 0 then
- begin
- glDeleteLists(e_TextureFonts[i].Base, 256);
- e_TextureFonts[i].Base := 0;
- end;
- end;
-end;
-
-procedure e_RestoreGLContext();
-var
- GLID: GLuint;
- i: Integer;
-begin
- e_WriteLog('Restoring GL context:', MSG_NOTIFY);
-
- glPopClientAttrib();
- glPopAttrib();
-
- if e_SavedTextures <> nil then
- begin
- e_WriteLog(' Regenerating textures...', MSG_NOTIFY);
- for i := Low(e_SavedTextures) to High(e_SavedTextures) do
- begin
- if e_SavedTextures[i].Pixels <> nil then
- with e_SavedTextures[i] do
- begin
- GLID := CreateTexture(e_Textures[TexID].Width, e_Textures[TexID].Height,
- e_Textures[TexID].Fmt, Pixels);
- e_Textures[TexID].ID := GLID;
- FreeMem(Pixels);
- end;
- end;
- end;
-
- if e_TextureFonts <> nil then
- begin
- e_WriteLog(' Regenerating texturefonts...', MSG_NOTIFY);
- for i := Low(e_TextureFonts) to High(e_TextureFonts) do
- with e_TextureFonts[i] do
- begin
- TextureID := e_Textures[Texture].ID;
- Base := 0;
- e_TextureFontBuildInPlace(i);
- end;
- end;
-
- SetLength(e_SavedTextures, 0);
-end;
-
-
function _RGB(Red, Green, Blue: Byte): TRGB;
begin
Result.R := Red;
Result.Bottom := B;
end;
+
+procedure e_MakeScreenshot (st: TStream; Width, Height: Word);
+var
+ pixels, obuf, scln, ps, pd: PByte;
+ obufsize: Integer;
+ dlen: Cardinal;
+ i, x, y, res: Integer;
+ sign: array [0..7] of Byte;
+ hbuf: array [0..12] of Byte;
+ crc: LongWord;
+ img: TImageData;
+ clr: TColor32Rec;
+begin
+ if e_NoGraphics then Exit;
+ obuf := nil;
+
+ // first, extract and pack graphics data
+ if (Width mod 4) > 0 then Width := Width+4-(Width mod 4);
+
+ GetMem(pixels, Width*Height*3);
+ try
+ FillChar(pixels^, Width*Height*3, 0);
+ glReadPixels(0, 0, Width, Height, GL_RGB, GL_UNSIGNED_BYTE, pixels);
+ //e_WriteLog('PNG: pixels read', MSG_NOTIFY);
+
+ if e_FastScreenshots then
+ begin
+ // create scanlines
+ GetMem(scln, (Width*3+1)*Height);
+ try
+ ps := pixels;
+ pd := scln;
+ Inc(ps, (Width*3)*(Height-1));
+ for i := 0 to Height-1 do
+ begin
+ pd^ := 0; // filter
+ Inc(pd);
+ Move(ps^, pd^, Width*3);
+ Dec(ps, Width*3);
+ Inc(pd, Width*3);
+ end;
+ except
+ FreeMem(scln);
+ raise;
+ end;
+ FreeMem(pixels);
+ pixels := scln;
+
+ // pack it
+ obufsize := (Width*3+1)*Height*2;
+ GetMem(obuf, obufsize);
+ try
+ while true do
+ begin
+ dlen := obufsize;
+ res := compress2(Pointer(obuf), dlen, Pointer(pixels), (Width*3+1)*Height, 9);
+ if res = Z_OK then break;
+ if res <> Z_BUF_ERROR then raise Exception.Create('can''t pack data for PNG');
+ obufsize := obufsize*2;
+ FreeMem(obuf);
+ obuf := nil;
+ GetMem(obuf, obufsize);
+ end;
+ //e_WriteLog(Format('PNG: pixels compressed from %d to %d', [Integer(Width*Height*3), Integer(dlen)]), MSG_NOTIFY);
+
+ // now write PNG
+
+ // signature
+ sign[0] := 137;
+ sign[1] := 80;
+ sign[2] := 78;
+ sign[3] := 71;
+ sign[4] := 13;
+ sign[5] := 10;
+ sign[6] := 26;
+ sign[7] := 10;
+ st.writeBuffer(sign, 8);
+ //e_WriteLog('PNG: signature written', MSG_NOTIFY);
+
+ // header
+ writeIntBE(st, LongWord(13));
+ sign[0] := 73;
+ sign[1] := 72;
+ sign[2] := 68;
+ sign[3] := 82;
+ st.writeBuffer(sign, 4);
+ crc := crc32(0, @sign[0], 4);
+ hbuf[0] := 0;
+ hbuf[1] := 0;
+ hbuf[2] := (Width shr 8) and $ff;
+ hbuf[3] := Width and $ff;
+ hbuf[4] := 0;
+ hbuf[5] := 0;
+ hbuf[6] := (Height shr 8) and $ff;
+ hbuf[7] := Height and $ff;
+ hbuf[8] := 8; // bit depth
+ hbuf[9] := 2; // RGB
+ hbuf[10] := 0; // compression method
+ hbuf[11] := 0; // filter method
+ hbuf[12] := 0; // no interlace
+ crc := crc32(crc, @hbuf[0], 13);
+ st.writeBuffer(hbuf, 13);
+ writeIntBE(st, crc);
+ //e_WriteLog('PNG: header written', MSG_NOTIFY);
+
+ // image data
+ writeIntBE(st, LongWord(dlen));
+ sign[0] := 73;
+ sign[1] := 68;
+ sign[2] := 65;
+ sign[3] := 84;
+ st.writeBuffer(sign, 4);
+ crc := crc32(0, @sign[0], 4);
+ crc := crc32(crc, obuf, dlen);
+ st.writeBuffer(obuf^, dlen);
+ writeIntBE(st, crc);
+ //e_WriteLog('PNG: image data written', MSG_NOTIFY);
+
+ // image data end
+ writeIntBE(st, LongWord(0));
+ sign[0] := 73;
+ sign[1] := 69;
+ sign[2] := 78;
+ sign[3] := 68;
+ st.writeBuffer(sign, 4);
+ crc := crc32(0, @sign[0], 4);
+ writeIntBE(st, crc);
+ //e_WriteLog('PNG: end marker written', MSG_NOTIFY);
+ finally
+ if obuf <> nil then FreeMem(obuf);
+ end;
+ end
+ else
+ begin
+ Imaging.SetOption(ImagingPNGCompressLevel, 9);
+ Imaging.SetOption(ImagingPNGPreFilter, 6);
+ InitImage(img);
+ try
+ NewImage(Width, Height, TImageFormat.ifR8G8B8, img);
+ ps := pixels;
+ //writeln(stderr, 'moving pixels...');
+ for y := Height-1 downto 0 do
+ begin
+ for x := 0 to Width-1 do
+ begin
+ clr.r := ps^; Inc(ps);
+ clr.g := ps^; Inc(ps);
+ clr.b := ps^; Inc(ps);
+ clr.a := 255;
+ SetPixel32(img, x, y, clr);
+ end;
+ end;
+ GlobalMetadata.ClearMetaItems();
+ GlobalMetadata.ClearMetaItemsForSaving();
+ //writeln(stderr, 'compressing image...');
+ if not SaveImageToStream('png', st, img) then raise Exception.Create('screenshot writing error');
+ //writeln(stderr, 'done!');
+ finally
+ FreeImage(img);
+ end;
+ end;
+ finally
+ FreeMem(pixels);
+ end;
+end;
+
+
end.