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Diffstat (limited to 'source/sw_draw.c')
| -rw-r--r-- | source/sw_draw.c | 758 |
1 files changed, 0 insertions, 758 deletions
diff --git a/source/sw_draw.c b/source/sw_draw.c deleted file mode 100644 index eabdbd3..0000000 --- a/source/sw_draw.c +++ /dev/null @@ -1,758 +0,0 @@ -/* -Copyright (C) 1997-2001 Id Software, Inc. - -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; either version 2 -of the License, or (at your option) any later version. - -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, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - -*/ - -// draw.c - -#include "sw_local.h" - - -//============================================================================= - - - -#define DOSTEP do { \ - tbyte = *src++; \ - if( tbyte != 255 ) \ - *dst = tbyte; \ - dst++; \ - } while( 0 ) - -#define DOMSTEP do { \ - if( *src++ != 255 ) \ - *dst = tbyte; \ - dst++; \ - } while( 0 ) - -#define DOSTRETCH do { \ - tbyte = src[u >> 16]; \ - if( tbyte != 255 ) \ - *dst = tbyte; \ - dst++; \ - u += ustep; \ - } while( 0 ) - -#define ROW1 do { \ - DOSTEP; \ - } while( --count ); - -#define ROW4 do { \ - DOSTEP; \ - DOSTEP; \ - DOSTEP; \ - DOSTEP; \ - \ - count -= 4; \ - } while( count ); - -#define ROW8 do { \ - DOSTEP; \ - DOSTEP; \ - DOSTEP; \ - DOSTEP; \ - DOSTEP; \ - DOSTEP; \ - DOSTEP; \ - DOSTEP; \ - \ - count -= 8; \ - } while( count ); - -#define MROW8 do { \ - DOMSTEP; \ - DOMSTEP; \ - DOMSTEP; \ - DOMSTEP; \ - DOMSTEP; \ - DOMSTEP; \ - DOMSTEP; \ - DOMSTEP; \ - \ - count -= 8; \ - } while( count ); - -#define STRETCH1 do { \ - DOSTRETCH; \ - } while( --count ); - -#define STRETCH4 do { \ - DOSTRETCH; \ - DOSTRETCH; \ - DOSTRETCH; \ - DOSTRETCH; \ - \ - count -= 4; \ - } while( count ); - -#define STRETCH8 do { \ - DOSTRETCH; \ - DOSTRETCH; \ - DOSTRETCH; \ - DOSTRETCH; \ - DOSTRETCH; \ - DOSTRETCH; \ - DOSTRETCH; \ - DOSTRETCH; \ - \ - count -= 8; \ - } while( count ); - -typedef struct { - int colorIndex; - int colorFlags; - clipRect_t clipRect; - int flags; -} drawStatic_t; - -static drawStatic_t draw; - -static int colorIndices[8]; - -void R_SetScale( float *scale ) { - if( scale ) { - *scale = 1; - } -} - -void R_InitDraw( void ) { - int i; - - memset( &draw, 0, sizeof( draw ) ); - draw.colorIndex = -1; - - for( i = 0; i < 8; i++ ) { - colorIndices[i] = R_IndexForColor( colorTable[i] ); - } -} - -void R_SetColor( int flags, const color_t color ) { - draw.flags &= ~DRAW_COLOR_MASK; - - if( flags == DRAW_COLOR_CLEAR ) { - draw.colorIndex = -1; - return; - } - - if( flags == DRAW_COLOR_ALPHA ) { - return; - } - - if( flags == DRAW_COLOR_INDEXED ) { - draw.colorIndex = *( uint32_t * )color & 255; - return; - } - - if( flags & DRAW_COLOR_RGB ) { - draw.colorIndex = R_IndexForColor( color ); - } - if( flags & DRAW_COLOR_ALPHA ) { - } - - draw.flags |= flags; -} - -void R_SetClipRect( int flags, const clipRect_t *clip ) { - draw.flags &= ~DRAW_CLIP_MASK; - - if( flags == DRAW_CLIP_DISABLED ) { - return; - } - draw.flags |= flags; - draw.clipRect = *clip; -} - -/* -============= -R_GetPicSize -============= -*/ -qboolean R_GetPicSize( int *w, int *h, qhandle_t pic ) { - image_t *image = IMG_ForHandle( pic ); - - if( w ) { - *w = image->width; - } - if( h ) { - *h = image->height; - } - return image->flags & if_transparent; -} - -/* -============= -R_DrawStretchData -============= -*/ -static void R_DrawStretchData( int x, int y, int w, int h, int xx, int yy, - int ww, int hh, int pitch, byte *data ) -{ - byte *srcpixels, *dstpixels, *dst, *src; - int v, u; - int ustep, vstep; - int skipv, skipu; - int width, height; - byte tbyte; - int count; - - skipv = skipu = 0; - width = w; - height = h; - - if( draw.flags & DRAW_CLIP_MASK ) { - clipRect_t *clip = &draw.clipRect; - - if( draw.flags & DRAW_CLIP_LEFT ) { - if( x < clip->left ) { - skipu = clip->left - x; - if( w <= skipu ) { - return; - } - w -= skipu; - x = clip->left; - } - } - - if( draw.flags & DRAW_CLIP_RIGHT ) { - if( x >= clip->right ) { - return; - } - if( x + w > clip->right ) { - w = clip->right - x; - } - } - - if( draw.flags & DRAW_CLIP_TOP ) { - if( y < clip->top ) { - skipv = clip->top - y; - if( h <= skipv ) { - return; - } - h -= skipv; - y = clip->top; - } - } - - if( draw.flags & DRAW_CLIP_BOTTOM ) { - if( y >= clip->bottom ) { - return; - } - if( y + h > clip->bottom ) { - h = clip->bottom - y; - } - } - } - - srcpixels = data + yy * pitch + xx; - dstpixels = vid.buffer + y * vid.rowbytes + x; - - vstep = hh * 0x10000 / height; - - v = skipv * vstep; - if( width == ww ) { - dstpixels += skipu; - do { - src = &srcpixels[( v >> 16 ) * pitch]; - dst = dstpixels; - count = w; - - if( !( w & 7 ) ) { - ROW8; - } else if( !( w & 3 ) ) { - ROW4; - } else { - ROW1; - } - - v += vstep; - dstpixels += vid.rowbytes; - } while( --h ); - } else { - ustep = ww * 0x10000 / width; - skipu = skipu * ustep; - do { - src = &srcpixels[( v >> 16 ) * pitch]; - dst = dstpixels; - count = w; - - u = skipu; - if( !( w & 7 ) ) { - STRETCH8; - } else if( !( w & 3 ) ) { - STRETCH4; - } else { - STRETCH1; - } - - v += vstep; - dstpixels += vid.rowbytes; - } while( --h ); - } - -} - -/* -============= -R_DrawFixedData -============= -*/ -static void R_DrawFixedData( int x, int y, int w, int h, - int pitch, byte *data ) -{ - byte *srcpixels, *dstpixels; - byte *dst, *src; - int skipv, skipu; - byte tbyte; - int count; - - skipv = skipu = 0; - - if( draw.flags & DRAW_CLIP_MASK ) { - clipRect_t *clip = &draw.clipRect; - - if( draw.flags & DRAW_CLIP_LEFT ) { - if( x < clip->left ) { - skipu = clip->left - x; - if( w <= skipu ) { - return; - } - w -= skipu; - x = clip->left; - } - } - - if( draw.flags & DRAW_CLIP_RIGHT ) { - if( x >= clip->right ) { - return; - } - if( x + w > clip->right ) { - w = clip->right - x; - } - } - - if( draw.flags & DRAW_CLIP_TOP ) { - if( y < clip->top ) { - skipv = clip->top - y; - if( h <= skipv ) { - return; - } - h -= skipv; - y = clip->top; - } - } - - if( draw.flags & DRAW_CLIP_BOTTOM ) { - if( y >= clip->bottom ) { - return; - } - if( y + h > clip->bottom ) { - h = clip->bottom - y; - } - } - } - - srcpixels = data + skipv * pitch + skipu; - dstpixels = vid.buffer + y * vid.rowbytes + x; - - if( !( w & 7 ) ) { - do { - src = srcpixels; - dst = dstpixels; - count = w; ROW8; - srcpixels += pitch; - dstpixels += vid.rowbytes; - } while( --h ); - } else if( !( w & 3 ) ) { - do { - src = srcpixels; - dst = dstpixels; - count = w; ROW4; - srcpixels += pitch; - dstpixels += vid.rowbytes; - } while( --h ); - } else { - do { - src = srcpixels; - dst = dstpixels; - count = w; ROW1; - srcpixels += pitch; - dstpixels += vid.rowbytes; - } while( --h ); - } - -} - -static void R_DrawFixedDataAsMask( int x, int y, int w, int h, - int pitch, byte *data, byte tbyte ) -{ - byte *srcpixels, *dstpixels; - byte *dst, *src; - int skipv, skipu; - int count; - - skipv = skipu = 0; - - if( draw.flags & DRAW_CLIP_MASK ) { - clipRect_t *clip = &draw.clipRect; - - if( draw.flags & DRAW_CLIP_LEFT ) { - if( x < clip->left ) { - skipu = clip->left - x; - if( w <= skipu ) { - return; - } - w -= skipu; - x = clip->left; - } - } - - if( draw.flags & DRAW_CLIP_RIGHT ) { - if( x >= clip->right ) { - return; - } - if( x + w > clip->right ) { - w = clip->right - x; - } - } - - if( draw.flags & DRAW_CLIP_TOP ) { - if( y < clip->top ) { - skipv = clip->top - y; - if( h <= skipv ) { - return; - } - h -= skipv; - y = clip->top; - } - } - - if( draw.flags & DRAW_CLIP_BOTTOM ) { - if( y <= clip->bottom ) { - return; - } - if( y + h > clip->bottom ) { - h = clip->bottom - y; - } - } - } - - srcpixels = data + skipv * pitch + skipu; - dstpixels = vid.buffer + y * vid.rowbytes + x; - - if( !( w & 7 ) ) { - do { - src = srcpixels; - dst = dstpixels; - count = w; MROW8; - srcpixels += pitch; - dstpixels += vid.rowbytes; - } while( --h ); - } else if( !( w & 3 ) ) { - do { - src = srcpixels; - dst = dstpixels; - count = w; ROW4; - srcpixels += pitch; - dstpixels += vid.rowbytes; - } while( --h ); - } else { - do { - src = srcpixels; - dst = dstpixels; - count = w; ROW1; - srcpixels += pitch; - dstpixels += vid.rowbytes; - } while( --h ); - } - -} - -/* -============= -R_DrawStretcpic -============= -*/ -void R_DrawStretcPicST( int x, int y, int w, int h, float s1, float t1, - float s2, float t2, qhandle_t pic ) -{ - image_t *image = IMG_ForHandle( pic ); - int xx, yy, ww, hh; - - xx = image->width * s1; - yy = image->height * t1; - ww = image->width * ( s2 - s1 ); - hh = image->height * ( t2 - t1 ); - - R_DrawStretchData( x, y, w, h, xx, yy, ww, hh, - image->width, image->pixels[0] ); -} - -/* -============= -R_DrawStretchPic -============= -*/ -void R_DrawStretchPic( int x, int y, int w, int h, qhandle_t pic ) { - image_t *image = IMG_ForHandle( pic ); - - if( w == image->width && h == image->height ) { - R_DrawFixedData( x, y, image->width, image->height, - image->width, image->pixels[0] ); - return; - } - - R_DrawStretchData( x, y, w, h, 0, 0, image->width, image->height, - image->width, image->pixels[0] ); -} - -/* -============= -R_DrawStretcpic -============= -*/ -void R_DrawPic( int x, int y, qhandle_t pic ) { - image_t *image = IMG_ForHandle( pic ); - - R_DrawFixedData( x, y, image->width, image->height, - image->width, image->pixels[0] ); -} - -void R_DrawChar( int x, int y, int flags, int ch, qhandle_t font ) { - image_t *image; - int xx, yy; - byte *data; - - if( !font ) { - return; - } - image = IMG_ForHandle( font ); - if( image->width != 128 || image->height != 128 ) { - return; - } - - xx = ( ch & 15 ) << 3; - yy = ( ( ch >> 4 ) & 15 ) << 3; - data = image->pixels[0] + yy * image->width + xx; - if( draw.colorIndex != -1 && !( ch & 128 ) ) { - R_DrawFixedDataAsMask( x, y, 8, 8, image->width, data, draw.colorIndex ); - } else { - R_DrawFixedData( x, y, 8, 8, image->width, data ); - } -} - -/* -=============== -R_DrawString -=============== -*/ -int R_DrawString( int x, int y, int flags, size_t maxChars, - const char *string, qhandle_t font ) -{ - image_t *image; - byte c, *data; - int xx, yy; - int color; - qboolean alt; - - if( !font ) { - return x; - } - image = IMG_ForHandle( font ); - if( image->width != 128 || image->height != 128 ) { - return x; - } - - alt = ( flags & UI_ALTCOLOR ) ? qtrue : qfalse; - color = draw.colorIndex; - - while( maxChars-- && *string ) { - c = *string++; - if( ( c & 127 ) == 32 ) { - x += 8; - continue; - } - - c |= alt << 7; - xx = ( c & 15 ) << 3; - yy = ( c >> 4 ) << 3; - - data = image->pixels[0] + yy * image->width + xx; - if( color != -1 && !( c & 128 ) ) { - R_DrawFixedDataAsMask( x, y, 8, 8, image->width, data, color ); - } else { - R_DrawFixedData( x, y, 8, 8, image->width, data ); - } - - x += 8; - } - return x; -} - -/* -============= -R_TileClear - -This repeats a 64*64 tile graphic to fill the screen around a sized down -refresh window. -============= -*/ -void R_TileClear( int x, int y, int w, int h, qhandle_t pic ) { - int i, j; - byte *psrc; - byte *pdest; - image_t *image; - int x2; - - if( !pic ) { - return; - } - - if (x < 0) { - w += x; - x = 0; - } - if (y < 0) { - h += y; - y = 0; - } - if (x + w > vid.width) - w = vid.width - x; - if (y + h > vid.height) - h = vid.height - y; - if (w <= 0 || h <= 0) - return; - - image = IMG_ForHandle( pic ); - if( image->width != 64 || image->height != 64 ) { - return; - } - x2 = x + w; - pdest = vid.buffer + y*vid.rowbytes; - for (i=0 ; i<h ; i++, pdest += vid.rowbytes) { - psrc = image->pixels[0] + image->width * ((i+y)&63); - for (j=x ; j<x2 ; j++) - pdest[j] = psrc[j&63]; - } -} - - -/* -============= -R_DrawFill - -Fills a box of pixels with a single color -============= -*/ -void R_DrawFill( int x, int y, int w, int h, int c ) { - byte *dest; - int u, v; - - if( x + w > vid.width ) - w = vid.width - x; - if( y + h > vid.height ) - h = vid.height - y; - if( x < 0 ) { - w += x; - x = 0; - } - if( y < 0 ) { - h += y; - y = 0; - } - if( w < 0 || h < 0 ) - return; - - dest = vid.buffer + y * vid.rowbytes + x; - for( v = 0; v < h; v++, dest += vid.rowbytes ) - for( u = 0; u < w; u++ ) - dest[u] = c; -} - -void R_DrawFillEx( int x, int y, int w, int h, const color_t color ) { - int c; - byte *dest; - int u, v; - - if( x + w > vid.width ) - w = vid.width - x; - if( y + h > vid.height ) - h = vid.height - y; - if( x < 0 ) { - w += x; - x = 0; - } - if( y < 0 ) { - h += y; - y = 0; - } - if( w < 0 || h < 0 ) - return; - - c = color ? R_IndexForColor( color ) : 0xD7; - - dest = vid.buffer + y * vid.rowbytes + x; - if( color[3] < 172 ) { - if( color[3] > 84 ) { - for( v = 0; v < h; v++, dest += vid.rowbytes ) { - for( u = 0 ; u < w; u++ ) { - dest[u] = vid.alphamap[c * 256 + dest[u]]; - } - } - } else { - for( v = 0; v < h; v++, dest += vid.rowbytes ) { - for( u = 0 ; u < w; u++ ) { - dest[u] = vid.alphamap[c + dest[u] * 256]; - } - } - } - } else { - for( v = 0; v < h; v++, dest += vid.rowbytes ) { - for( u = 0 ; u < w; u++ ) { - dest[u] = c; - } - } - } -} - - -//============================================================================= - -/* -================ -R_DrawFadeScreen - -================ -*/ -void R_DrawFadeScreen (void) -{ - int x,y; - byte *pbuf; - int t; - - for (y=0 ; y<vid.height ; y++) - { - pbuf = (byte *)(vid.buffer + vid.rowbytes*y); - t = (y & 1) << 1; - - for (x=0 ; x<vid.width ; x++) - { - if ((x & 3) != t) - pbuf[x] = 0; - } - } -} |