432 lines
8.8 KiB
432 lines
8.8 KiB
/* |
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gl_draw.c - orthogonal drawing stuff |
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Copyright (C) 2010 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 "r_local.h" |
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/* |
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============= |
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R_GetImageParms |
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============= |
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*/ |
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void R_GetTextureParms( int *w, int *h, int texnum ) |
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{ |
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image_t *glt; |
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glt = R_GetTexture( texnum ); |
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if( w ) *w = glt->srcWidth; |
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if( h ) *h = glt->srcHeight; |
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} |
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/* |
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============= |
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R_GetSpriteParms |
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same as GetImageParms but used |
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for sprite models |
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============= |
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*/ |
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void GAME_EXPORT R_GetSpriteParms( int *frameWidth, int *frameHeight, int *numFrames, int currentFrame, const model_t *pSprite ) |
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{ |
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mspriteframe_t *pFrame; |
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if( !pSprite || pSprite->type != mod_sprite ) return; // bad model ? |
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pFrame = R_GetSpriteFrame( pSprite, currentFrame, 0.0f ); |
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if( frameWidth ) *frameWidth = pFrame->width; |
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if( frameHeight ) *frameHeight = pFrame->height; |
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if( numFrames ) *numFrames = pSprite->numframes; |
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} |
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int GAME_EXPORT R_GetSpriteTexture( const model_t *m_pSpriteModel, int frame ) |
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{ |
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if( !m_pSpriteModel || m_pSpriteModel->type != mod_sprite || !m_pSpriteModel->cache.data ) |
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return 0; |
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return R_GetSpriteFrame( m_pSpriteModel, frame, 0.0f )->gl_texturenum; |
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} |
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/* |
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============= |
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Draw_StretchPicImplementation |
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============= |
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*/ |
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void R_DrawStretchPicImplementation( int x, int y, int w, int h, int s1, int t1, int s2, int t2, image_t *pic ) |
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{ |
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pixel_t *source, *dest; |
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unsigned int v, u, sv; |
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unsigned int height; |
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unsigned int f, fstep; |
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int skip; |
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qboolean transparent = false; |
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pixel_t *buffer; |
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if( x < 0 ) |
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{ |
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s1 += (-x)*(s2-s1) / w; |
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x = 0; |
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} |
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if( x + w > vid.width ) |
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{ |
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s2 -= (x + w - vid.width) * (s2 - s1)/ w ; |
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w = vid.width - x; |
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} |
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if( y + h > vid.height ) |
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{ |
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t2 -= (y + h - vid.height) * (t2 - t1) / h; |
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h = vid.height - y; |
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} |
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if( !pic->pixels[0] || s1 >= s2 || t1 >= t2 ) |
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return; |
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//gEngfuncs.Con_Printf ("pixels is %p\n", pic->pixels[0] ); |
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height = h; |
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if (y < 0) |
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{ |
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skip = -y; |
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height += y; |
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y = 0; |
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} |
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else |
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skip = 0; |
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dest = vid.buffer + y * vid.rowbytes + x; |
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if( pic->alpha_pixels ) |
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{ |
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buffer = pic->alpha_pixels; |
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transparent = true; |
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} |
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else |
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buffer = pic->pixels[0]; |
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#pragma omp parallel for schedule(static) |
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for (v=0 ; v<height ; v++) |
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{ |
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int alpha1 = vid.alpha; |
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#ifdef _OPENMP |
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pixel_t *dest = vid.buffer + (y + v) * vid.rowbytes + x; |
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#endif |
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sv = (skip + v)*(t2-t1)/h + t1; |
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source = buffer + sv*pic->width + s1; |
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{ |
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f = 0; |
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fstep = ((s2-s1) << 16)/w; |
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#if 0 |
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for (u=0 ; u<w ; u+=4) |
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{ |
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dest[u] = source[f>>16]; |
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f += fstep; |
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dest[u+1] = source[f>>16]; |
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f += fstep; |
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dest[u+2] = source[f>>16]; |
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f += fstep; |
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dest[u+3] = source[f>>16]; |
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f += fstep; |
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} |
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#else |
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for (u=0 ; u<w ; u++) |
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{ |
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pixel_t src = source[f>>16]; |
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int alpha = alpha1; |
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f += fstep; |
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if( transparent ) |
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{ |
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alpha &= src >> ( 16 - 3 ); |
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src = src << 3; |
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} |
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if( alpha == 0 ) |
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continue; |
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if( vid.color != COLOR_WHITE ) |
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src = vid.modmap[(src & 0xff00)|(vid.color>>8)] << 8 | (src & vid.color & 0xff) | ((src & 0xff) >> 3); |
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if( vid.rendermode == kRenderTransAdd) |
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{ |
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pixel_t screen = dest[u]; |
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dest[u] = vid.addmap[(src & 0xff00)|(screen>>8)] << 8 | (screen & 0xff) | ((src & 0xff) >> 0); |
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} |
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else if( vid.rendermode == kRenderScreenFadeModulate ) |
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{ |
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pixel_t screen = dest[u]; |
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dest[u] = BLEND_COLOR( screen, vid.color ); |
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} |
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else if( alpha < 7) // && (vid.rendermode == kRenderTransAlpha || vid.rendermode == kRenderTransTexture ) ) |
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{ |
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pixel_t screen = dest[u]; // | 0xff & screen & src ; |
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dest[u] = BLEND_ALPHA( alpha, src, screen );//vid.alphamap[( alpha << 16)|(src & 0xff00)|(screen>>8)] << 8 | (screen & 0xff) >> 3 | ((src & 0xff) >> 3); |
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} |
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else |
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dest[u] = src; |
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} |
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#endif |
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} |
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dest += vid.rowbytes; |
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} |
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} |
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/* |
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============= |
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R_DrawStretchPic |
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============= |
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*/ |
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void GAME_EXPORT R_DrawStretchPic( float x, float y, float w, float h, float s1, float t1, float s2, float t2, int texnum ) |
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{ |
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image_t *pic = R_GetTexture(texnum); |
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int width = pic->width, height = pic->height; |
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// GL_Bind( XASH_TEXTURE0, texnum ); |
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if( s2 > 1.0f || t2 > 1.0f ) |
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return; |
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if( s1 < 0.0f || t1 < 0.0f ) |
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return; |
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if( w < 1.0f || h < 1.0f ) |
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return; |
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R_DrawStretchPicImplementation(x,y,w,h, width * s1, height * t1, width * s2, height * t2, pic); |
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} |
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void Draw_Fill (int x, int y, int w, int h) |
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{ |
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pixel_t *dest; |
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unsigned int v, u; |
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unsigned int height; |
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int skip; |
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pixel_t src = vid.color; |
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int alpha = vid.alpha; |
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if( x < 0 ) |
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x = 0; |
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if( x + w > vid.width ) |
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w = vid.width - x; |
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if( w <= 0 ) |
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return; |
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if( y + h > vid.height ) |
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h = vid.height - y; |
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if( h <= 0 ) |
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return; |
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height = h; |
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if( y < 0 ) |
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{ |
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if( h <= -y ) |
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return; |
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skip = -y; |
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height += y; |
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y = 0; |
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} |
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else |
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skip = 0; |
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dest = vid.buffer + y * vid.rowbytes + x; |
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#pragma omp parallel for schedule(static) |
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for (v=0 ; v<height ; v++) |
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{ |
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#ifdef _OPENMP |
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pixel_t *dest = vid.buffer + (y + v) * vid.rowbytes + x; |
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#endif |
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{ |
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#if 0 |
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for (u=0 ; u<w ; u+=4) |
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{ |
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dest[u] = source[f>>16]; |
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f += fstep; |
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dest[u+1] = source[f>>16]; |
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f += fstep; |
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dest[u+2] = source[f>>16]; |
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f += fstep; |
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dest[u+3] = source[f>>16]; |
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f += fstep; |
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} |
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#else |
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for (u=0 ; u<w ; u++) |
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{ |
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if( alpha == 0 ) |
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continue; |
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if( vid.rendermode == kRenderTransAdd) |
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{ |
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pixel_t screen = dest[u]; |
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dest[u] = vid.addmap[(src & 0xff00)|(screen>>8)] << 8 | (screen & 0xff) | ((src & 0xff) >> 0); |
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} |
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else if( alpha < 7) // && (vid.rendermode == kRenderTransAlpha || vid.rendermode == kRenderTransTexture ) ) |
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{ |
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pixel_t screen = dest[u]; // | 0xff & screen & src ; |
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dest[u] = BLEND_ALPHA( alpha, src, screen);//vid.alphamap[( alpha << 16)|(src & 0xff00)|(screen>>8)] << 8 | (screen & 0xff) >> 3 | ((src & 0xff) >> 3); |
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} |
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else |
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dest[u] = src; |
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} |
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#endif |
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} |
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dest += vid.rowbytes; |
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} |
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} |
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/* |
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============= |
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Draw_TileClear |
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This repeats a 64*64 tile graphic to fill the screen around a sized down |
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refresh window. |
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============= |
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*/ |
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void GAME_EXPORT R_DrawTileClear( int texnum, int x, int y, int w, int h ) |
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{ |
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int tw, th, x2, i, j; |
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image_t *pic; |
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pixel_t *psrc, *pdest; |
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GL_SetRenderMode( kRenderNormal ); |
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_TriColor4f( 1.0f, 1.0f, 1.0f, 1.0f ); |
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GL_Bind( XASH_TEXTURE0, texnum ); |
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pic = R_GetTexture( texnum ); |
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tw = pic->width; |
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th = pic->height; |
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if (x < 0) |
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{ |
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w += x; |
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x = 0; |
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} |
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if (y < 0) |
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{ |
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h += y; |
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y = 0; |
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} |
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if (x + w > vid.width) |
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w = vid.width - x; |
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if (y + h > vid.height) |
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h = vid.height - y; |
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if (w <= 0 || h <= 0) |
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return; |
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x2 = x + w; |
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pdest = vid.buffer + y*vid.rowbytes; |
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for (i=0 ; i<h ; i++, pdest += vid.rowbytes) |
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{ |
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psrc = pic->pixels[0] + tw * ((i+y)&63); |
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for (j=x ; j<x2 ; j++) |
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pdest[j] = psrc[j&63]; |
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} |
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} |
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/* |
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============= |
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R_DrawStretchRaw |
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============= |
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*/ |
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void GAME_EXPORT R_DrawStretchRaw( float x, float y, float w, float h, int cols, int rows, const byte *data, qboolean dirty ) |
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{ |
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byte *raw = NULL; |
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image_t *tex; |
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raw = (byte *)data; |
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//pglDisable( GL_BLEND ); |
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//pglDisable( GL_ALPHA_TEST ); |
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//pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE ); |
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tex = R_GetTexture( tr.cinTexture ); |
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GL_Bind( XASH_TEXTURE0, tr.cinTexture ); |
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} |
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/* |
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============= |
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R_UploadStretchRaw |
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============= |
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*/ |
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void GAME_EXPORT R_UploadStretchRaw( int texture, int cols, int rows, int width, int height, const byte *data ) |
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{ |
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byte *raw = NULL; |
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image_t *tex; |
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raw = (byte *)data; |
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tex = R_GetTexture( texture ); |
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GL_Bind( GL_KEEP_UNIT, texture ); |
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tex->width = cols; |
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tex->height = rows; |
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} |
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/* |
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=============== |
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R_Set2DMode |
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=============== |
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*/ |
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void GAME_EXPORT R_Set2DMode( qboolean enable ) |
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{ |
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vid.color = COLOR_WHITE; |
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vid.is2d = enable; |
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vid.alpha = 7; |
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if( enable ) |
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{ |
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// if( glState.in2DMode ) |
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// return; |
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#if 0 |
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// set 2D virtual screen size |
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pglViewport( 0, 0, gpGlobals->width, gpGlobals->height ); |
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pglMatrixMode( GL_PROJECTION ); |
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pglLoadIdentity(); |
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pglOrtho( 0, gpGlobals->width, gpGlobals->height, 0, -99999, 99999 ); |
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pglMatrixMode( GL_MODELVIEW ); |
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pglLoadIdentity(); |
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GL_Cull( GL_NONE ); |
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pglDepthMask( GL_FALSE ); |
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pglDisable( GL_DEPTH_TEST ); |
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pglEnable( GL_ALPHA_TEST ); |
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pglColor4f( 1.0f, 1.0f, 1.0f, 1.0f ); |
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#endif |
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// glState.in2DMode = true; |
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RI.currententity = NULL; |
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RI.currentmodel = NULL; |
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} |
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else |
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{ |
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#if 0 |
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pglDepthMask( GL_TRUE ); |
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pglEnable( GL_DEPTH_TEST ); |
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glState.in2DMode = false; |
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pglMatrixMode( GL_PROJECTION ); |
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GL_LoadMatrix( RI.projectionMatrix ); |
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pglMatrixMode( GL_MODELVIEW ); |
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GL_LoadMatrix( RI.worldviewMatrix ); |
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GL_Cull( GL_FRONT ); |
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#endif |
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} |
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}
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