461 lines
14 KiB
C++
461 lines
14 KiB
C++
/*
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vgui_surf.cpp - main vgui layer
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Copyright (C) 2011 Uncle Mike
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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, either version 3 of the License, or
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(at your option) any later version.
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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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*/
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#include "common.h"
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#include "client.h"
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#include "vgui_draw.h"
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#include "vgui_main.h"
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#define MAXVERTEXBUFFERS 1024
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#define MAX_PAINT_STACK 8
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#define FONT_SIZE 512
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#define FONT_PAGES 8
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static char staticRGBA[FONT_SIZE * FONT_SIZE * 4];
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static vpoint_t g_VertexBuffer[MAXVERTEXBUFFERS];
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static int g_iVertexBufferEntriesUsed = 0;
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static int staticContextCount = 0;
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struct FontInfo
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{
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int id;
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int pageCount;
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int pageForChar[256];
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int bindIndex[FONT_PAGES];
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float texCoord[256][FONT_PAGES];
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int contextCount;
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};
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static Font* staticFont = NULL;
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static FontInfo* staticFontInfo;
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static Dar<FontInfo*> staticFontInfoDar;
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static PaintStack paintStack[MAX_PAINT_STACK];
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static int staticPaintStackPos = 0;
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CEngineSurface :: CEngineSurface( Panel *embeddedPanel ):SurfaceBase( embeddedPanel )
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{
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_drawTextColor[0] = _drawTextColor[1] = _drawTextColor[2] = _drawTextColor[3] = 255;
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_drawColor[0] = _drawColor[1] = _drawColor[2] = _drawColor[3] = 255;
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_drawTextPos[0] = _drawTextPos[1] = _currentTexture = 0;
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staticFont = NULL;
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staticFontInfo = NULL;
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staticFontInfoDar.setCount( 0 );
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staticPaintStackPos = 0;
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staticContextCount++;
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VGUI_InitCursors ();
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}
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CEngineSurface :: ~CEngineSurface( void )
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{
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VGUI_DrawShutdown ();
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}
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void CEngineSurface :: setCursor( Cursor *cursor )
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{
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_currentCursor = cursor;
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VGUI_CursorSelect( cursor );
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}
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void CEngineSurface :: SetupPaintState( const PaintStack *paintState )
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{
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_translateX = paintState->iTranslateX;
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_translateY = paintState->iTranslateY;
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SetScissorRect( paintState->iScissorLeft, paintState->iScissorTop, paintState->iScissorRight, paintState->iScissorBottom );
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currentPanel = paintState->m_pPanel;
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}
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void CEngineSurface :: InitVertex( vpoint_t &vertex, int x, int y, float u, float v )
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{
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vertex.point[0] = x + _translateX;
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vertex.point[1] = y + _translateY;
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vertex.coord[0] = u;
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vertex.coord[1] = v;
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}
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int CEngineSurface :: createNewTextureID( void )
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{
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return VGUI_GenerateTexture();
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}
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void CEngineSurface :: drawSetColor( int r, int g, int b, int a )
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{
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_drawColor[0] = r;
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_drawColor[1] = g;
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_drawColor[2] = b;
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_drawColor[3] = a;
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}
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void CEngineSurface :: drawSetTextColor( int r, int g, int b, int a )
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{
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_drawTextColor[0] = r;
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_drawTextColor[1] = g;
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_drawTextColor[2] = b;
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_drawTextColor[3] = a;
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}
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void CEngineSurface :: drawFilledRect( int x0, int y0, int x1, int y1 )
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{
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vpoint_t rect[2];
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vpoint_t clippedRect[2];
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if( _drawColor[3] >= 255 ) return;
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InitVertex( rect[0], x0, y0, 0, 0 );
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InitVertex( rect[1], x1, y1, 0, 0 );
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// fully clipped?
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if( !ClipRect( rect[0], rect[1], &clippedRect[0], &clippedRect[1] ))
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return;
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VGUI_SetupDrawingRect( _drawColor );
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VGUI_EnableTexture( false );
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VGUI_DrawQuad( &clippedRect[0], &clippedRect[1] );
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VGUI_EnableTexture( true );
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}
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void CEngineSurface :: drawOutlinedRect( int x0, int y0, int x1, int y1 )
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{
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if( _drawColor[3] >= 255 ) return;
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drawFilledRect( x0, y0, x1, y0 + 1 ); // top
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drawFilledRect( x0, y1 - 1, x1, y1 ); // bottom
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drawFilledRect( x0, y0 + 1, x0 + 1, y1 - 1 ); // left
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drawFilledRect( x1 - 1, y0 + 1, x1, y1 - 1 ); // right
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}
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void CEngineSurface :: drawSetTextFont( Font *font )
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{
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staticFont = font;
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if( font )
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{
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bool buildFont = false;
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staticFontInfo = NULL;
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for( int i = 0; i < staticFontInfoDar.getCount(); i++ )
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{
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if( staticFontInfoDar[i]->id == font->getId( ))
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{
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staticFontInfo = staticFontInfoDar[i];
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if( staticFontInfo->contextCount != staticContextCount )
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buildFont = true;
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}
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}
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if( !staticFontInfo || buildFont )
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{
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staticFontInfo = new FontInfo;
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staticFontInfo->id = 0;
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staticFontInfo->pageCount = 0;
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staticFontInfo->bindIndex[0] = 0;
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staticFontInfo->bindIndex[1] = 0;
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staticFontInfo->bindIndex[2] = 0;
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staticFontInfo->bindIndex[3] = 0;
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memset( staticFontInfo->pageForChar, 0, sizeof( staticFontInfo->pageForChar ));
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staticFontInfo->contextCount = -1;
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staticFontInfo->id = staticFont->getId();
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staticFontInfoDar.putElement( staticFontInfo );
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staticFontInfo->contextCount = staticContextCount;
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int currentPage = 0;
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int x = 0, y = 0;
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memset( staticRGBA, 0, sizeof( staticRGBA ));
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for( int i = 0; i < 256; i++ )
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{
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int abcA, abcB, abcC;
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staticFont->getCharABCwide( i, abcA, abcB, abcC );
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int wide = abcB;
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if( isspace( i )) continue;
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int tall = staticFont->getTall();
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if( x + wide + 1 > FONT_SIZE )
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{
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x = 0;
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y += tall + 1;
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}
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if( y + tall + 1 > FONT_SIZE )
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{
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if( !staticFontInfo->bindIndex[currentPage] )
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staticFontInfo->bindIndex[currentPage] = createNewTextureID();
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drawSetTextureRGBA( staticFontInfo->bindIndex[currentPage], staticRGBA, FONT_SIZE, FONT_SIZE );
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currentPage++;
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if( currentPage == FONT_PAGES )
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break;
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memset( staticRGBA, 0, sizeof( staticRGBA ));
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x = y = 0;
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}
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staticFont->getCharRGBA( i, x, y, FONT_SIZE, FONT_SIZE, (byte *)staticRGBA );
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staticFontInfo->pageForChar[i] = currentPage;
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staticFontInfo->texCoord[i][0] = (float)((double)x / (double)FONT_SIZE );
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staticFontInfo->texCoord[i][1] = (float)((double)y / (double)FONT_SIZE );
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staticFontInfo->texCoord[i][2] = (float)((double)(x + wide)/(double)FONT_SIZE );
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staticFontInfo->texCoord[i][3] = (float)((double)(y + tall)/(double)FONT_SIZE );
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x += wide + 1;
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}
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if( currentPage != FONT_PAGES )
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{
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if( !staticFontInfo->bindIndex[currentPage] )
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staticFontInfo->bindIndex[currentPage] = createNewTextureID();
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drawSetTextureRGBA( staticFontInfo->bindIndex[currentPage], staticRGBA, FONT_SIZE, FONT_SIZE );
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}
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staticFontInfo->pageCount = currentPage + 1;
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}
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}
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}
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void CEngineSurface :: drawSetTextPos( int x, int y )
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{
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_drawTextPos[0] = x;
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_drawTextPos[1] = y;
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}
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void CEngineSurface :: addCharToBuffer( const vpoint_t *ul, const vpoint_t *lr, int color[4] )
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{
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if( g_iVertexBufferEntriesUsed >= MAXVERTEXBUFFERS )
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flushBuffer();
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 0].coord[0] = ul->coord[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 0].coord[1] = ul->coord[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 0].point[0] = ul->point[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 0].point[1] = ul->point[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 0].color[0] = color[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 0].color[1] = color[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 0].color[2] = color[2];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 0].color[3] = 255 - color[3];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 1].coord[0] = lr->coord[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 1].coord[1] = ul->coord[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 1].point[0] = lr->point[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 1].point[1] = ul->point[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 1].color[0] = color[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 1].color[1] = color[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 1].color[2] = color[2];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 1].color[3] = 255 - color[3];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 2].coord[0] = lr->coord[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 2].coord[1] = lr->coord[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 2].point[0] = lr->point[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 2].point[1] = lr->point[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 2].color[0] = color[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 2].color[1] = color[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 2].color[2] = color[2];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 2].color[3] = 255 - color[3];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 3].coord[0] = ul->coord[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 3].coord[1] = lr->coord[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 3].point[0] = ul->point[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 3].point[1] = lr->point[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 3].color[0] = color[0];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 3].color[1] = color[1];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 3].color[2] = color[2];
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g_VertexBuffer[g_iVertexBufferEntriesUsed + 3].color[3] = 255 - color[3];
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g_iVertexBufferEntriesUsed += 4;
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}
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void CEngineSurface :: flushBuffer( void )
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{
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if( g_iVertexBufferEntriesUsed <= 0 )
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return;
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VGUI_DrawBuffer( g_VertexBuffer, g_iVertexBufferEntriesUsed );
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g_iVertexBufferEntriesUsed = 0;
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}
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void CEngineSurface :: drawPrintChar( int x, int y, int wide, int tall, float s0, float t0, float s1, float t1, int color[4] )
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{
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vpoint_t ul, lr;
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ul.point[0] = x;
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ul.point[1] = y;
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lr.point[0] = x + wide;
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lr.point[1] = y + tall;
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// gets at the texture coords for this character in its texture page
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ul.coord[0] = s0;
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ul.coord[1] = t0;
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lr.coord[0] = s1;
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lr.coord[1] = t1;
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vpoint_t clippedRect[2];
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if( !ClipRect( ul, lr, &clippedRect[0], &clippedRect[1] ))
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return;
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#if 1
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// TESTTEST: needs to be more tested
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addCharToBuffer( &clippedRect[0], &clippedRect[1], color );
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#else
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VGUI_SetupDrawingImage( color );
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VGUI_DrawQuad( &clippedRect[0], &clippedRect[1] ); // draw the letter
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#endif
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}
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void CEngineSurface :: drawPrintText( const char *text, int textLen )
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{
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static bool hasColor = 0;
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static int numColor = 7;
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if( !COM_CheckString( text ) || !staticFont || !staticFontInfo )
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return;
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int x = _drawTextPos[0] + _translateX;
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int y = _drawTextPos[1] + _translateY;
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int tall = staticFont->getTall();
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int curTextColor[4];
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int iTotalWidth = 0;
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// HACKHACK: allow color strings in VGUI
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if( numColor != 7 && vgui_colorstrings->value )
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{
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for( int j = 0; j < 3; j++ ) // grab predefined color
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curTextColor[j] = g_color_table[numColor][j];
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}
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else
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{
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for( int j = 0; j < 3; j++ ) // revert default color
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curTextColor[j] = _drawTextColor[j];
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}
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curTextColor[3] = _drawTextColor[3]; // copy alpha
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if( textLen == 1 && vgui_colorstrings->value )
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{
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if( *text == '^' )
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{
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hasColor = true;
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return; // skip '^'
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}
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else if( hasColor && isdigit( *text ))
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{
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numColor = ColorIndex( *text );
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hasColor = false; // handled
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return; // skip colornum
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}
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else hasColor = false;
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}
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for( int i = 0; i < textLen; i++ )
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{
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int abcA, abcB, abcC;
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int curCh = (byte)text[i];
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staticFont->getCharABCwide( curCh, abcA, abcB, abcC );
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float s0 = staticFontInfo->texCoord[curCh][0];
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float t0 = staticFontInfo->texCoord[curCh][1];
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float s1 = staticFontInfo->texCoord[curCh][2];
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float t1 = staticFontInfo->texCoord[curCh][3];
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int wide = abcB;
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iTotalWidth += abcA;
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drawSetTexture( staticFontInfo->bindIndex[staticFontInfo->pageForChar[curCh]] );
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drawPrintChar( x + iTotalWidth, y, wide, tall, s0, t0, s1, t1, curTextColor );
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iTotalWidth += wide + abcC;
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}
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_drawTextPos[0] += iTotalWidth;
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}
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void CEngineSurface :: drawSetTextureRGBA( int id, const char* rgba, int wide, int tall )
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{
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VGUI_UploadTexture( id, rgba, wide, tall );
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_currentTexture = id;
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}
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void CEngineSurface :: drawSetTexture( int id )
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{
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if( _currentTexture != id )
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{
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_currentTexture = id;
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flushBuffer();
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}
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VGUI_BindTexture( id );
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}
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void CEngineSurface :: drawTexturedRect( int x0, int y0, int x1, int y1 )
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{
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vpoint_t rect[2];
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vpoint_t clippedRect[2];
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// it's not a vertex, just fill rectangle
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InitVertex( rect[0], x0, y0, 0, 0 );
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InitVertex( rect[1], x1, y1, 1, 1 );
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// fully clipped?
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if( !ClipRect( rect[0], rect[1], &clippedRect[0], &clippedRect[1] ))
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return;
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VGUI_SetupDrawingImage( _drawColor );
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VGUI_DrawQuad( &clippedRect[0], &clippedRect[1] );
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}
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void CEngineSurface :: pushMakeCurrent( Panel* panel, bool useInsets )
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{
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int insets[4] = { 0, 0, 0, 0 };
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int absExtents[4];
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int clipRect[4];
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if( useInsets )
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panel->getInset( insets[0], insets[1], insets[2], insets[3] );
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panel->getAbsExtents( absExtents[0], absExtents[1], absExtents[2], absExtents[3] );
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panel->getClipRect( clipRect[0], clipRect[1], clipRect[2], clipRect[3] );
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PaintStack *paintState = &paintStack[staticPaintStackPos];
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ASSERT( staticPaintStackPos < MAX_PAINT_STACK );
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paintState->m_pPanel = panel;
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// determine corrected top left origin
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paintState->iTranslateX = insets[0] + absExtents[0];
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paintState->iTranslateY = insets[1] + absExtents[1];
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// setup clipping rectangle for scissoring
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paintState->iScissorLeft = clipRect[0];
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paintState->iScissorTop = clipRect[1];
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paintState->iScissorRight = clipRect[2];
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paintState->iScissorBottom = clipRect[3];
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SetupPaintState( paintState );
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staticPaintStackPos++;
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}
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void CEngineSurface :: popMakeCurrent( Panel *panel )
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{
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flushBuffer();
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int top = staticPaintStackPos - 1;
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// more pops that pushes?
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Assert( top >= 0 );
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// didn't pop in reverse order of push?
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Assert( paintStack[top].m_pPanel == panel );
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staticPaintStackPos--;
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if( top > 0 ) SetupPaintState( &paintStack[top-1] );
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} |