index 39b6e4330ef71754142a013ee8807501c97805ff..87b31a5b22dcaea9db8f8628a1d275266f896efe 100644 (file)
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*)
-{$INCLUDE e_amodes.inc}
+{$INCLUDE ../shared/a_modes.inc}
unit e_graphics;
interface
uses
- SysUtils, Classes, Math, e_log, e_textures, SDL2, GL, GLExt, MAPDEF, ImagingTypes, Imaging, ImagingUtility;
+ SysUtils, Classes, Math, e_log, e_texture, SDL2, GL, GLExt, MAPDEF, ImagingTypes, Imaging, ImagingUtility;
type
TMirrorType=(M_NONE, M_HORIZONTAL, M_VERTICAL);
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_Draw(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
Blending: Boolean; Mirror: TMirrorType = M_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 = M_NONE);
procedure e_DrawSize(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = M_NONE);
procedure e_DrawSizeMirror(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = M_NONE);
+
procedure e_DrawFill(ID: DWORD; X, Y: Integer; XCount, YCount: Word; Alpha: Integer;
AlphaChannel: Boolean; Blending: Boolean);
+
+procedure e_DrawFillX (id: DWORD; x, y, wdt, hgt: Integer; alpha: Integer; alphachannel: Boolean; blending: Boolean; scale: Single);
+
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);
+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;
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_TextureFontGetSize(ID: DWORD; out CharWidth, CharHeight: Byte);
procedure e_RemoveAllTextureFont();
function e_TextureFontCharWidth (ch: Char; FontID: DWORD): Integer;
end;
Space: ShortInt;
Height: ShortInt;
- Live: Boolean;
+ alive: Boolean;
end;
TSavedTexture = record
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);
+var
+ x2, y2: Integer;
+ {
+ wassc: Boolean;
+ scxywh: array[0..3] of GLint;
+ vpxywh: array[0..3] of GLint;
+ }
+ w, h, dw, cw, ch: Integer;
+ u, v, cu, cv: Single;
+
+ {
+ 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;
+ }
+
+begin
+ if e_NoGraphics then exit;
+
+ 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);
+ exit;
+ end;
+
+ glColor4ub(e_Colors.R, e_Colors.G, e_Colors.B, 255);
+
+ if (Alpha > 0) or AlphaChannel or Blending then
+ glEnable(GL_BLEND)
+ else
+ glDisable(GL_BLEND);
+
+ 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].tx.id);
+
+ x2 := x+wdt;
+ y2 := y+hgt;
+
+ //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);
+ 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;
+ glBegin(GL_QUADS);
+ while (hgt > 0) do
+ begin
+ if (hgt >= h) then begin ch := h; cv := v; end else begin ch := hgt; cv := v/(h/hgt) end;
+ 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);
+ glTexCoord2f(cu, cv); glVertex2i(X+cw, Y);
+ glTexCoord2f(cu, 0); glVertex2i(X+cw, Y+ch);
+ glTexCoord2f(0, 0); glVertex2i(X, Y+ch);
+ Inc(X, w);
+ end;
+ Inc(Y, h);
+ end;
+ glEnd();
+ //if wassc then glEnable(GL_SCISSOR_TEST) else glDisable(GL_SCISSOR_TEST);
+ end;
+
+ glDisable(GL_BLEND);
+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 = M_NONE);
begin
if e_NoGraphics then Exit;
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;
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;
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();
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;
sign[2] := 68;
sign[3] := 82;
st.writeBuffer(sign, 4);
- crc := crc32(0, @sign, 4);
+ crc := crc32(0, @sign[0], 4);
hbuf[0] := 0;
hbuf[1] := 0;
hbuf[2] := (Width shr 8) and $ff;
hbuf[10] := 0; // compression method
hbuf[11] := 0; // filter method
hbuf[12] := 0; // no interlace
- crc := crc32(crc, @hbuf, 13);
+ crc := crc32(crc, @hbuf[0], 13);
st.writeBuffer(hbuf, 13);
writeIntBE(st, crc);
//e_WriteLog('PNG: header written', MSG_NOTIFY);
sign[2] := 65;
sign[3] := 84;
st.writeBuffer(sign, 4);
- crc := crc32(0, @sign, 4);
+ crc := crc32(0, @sign[0], 4);
crc := crc32(crc, obuf, dlen);
st.writeBuffer(obuf^, dlen);
writeIntBE(st, crc);
sign[2] := 78;
sign[3] := 68;
st.writeBuffer(sign, 4);
- crc := crc32(0, @sign, 4);
+ crc := crc32(0, @sign[0], 4);
writeIntBE(st, crc);
//e_WriteLog('PNG: end marker written', MSG_NOTIFY);
finally