| /************************************************************************** |
| |
| Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. |
| All Rights Reserved. |
| |
| Permission is hereby granted, free of charge, to any person obtaining a |
| copy of this software and associated documentation files (the |
| "Software"), to deal in the Software without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sub license, and/or sell copies of the Software, and to |
| permit persons to whom the Software is furnished to do so, subject to |
| the following conditions: |
| |
| The above copyright notice and this permission notice (including the |
| next paragraph) shall be included in all copies or substantial portions |
| of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR |
| ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| **************************************************************************/ |
| |
| /* |
| * Authors: |
| * Kevin E. Martin <kevin@precisioninsight.com> |
| * Brian Paul <brian@precisioninsight.com> |
| */ |
| |
| #ifndef _XM_IMAGE_H_ |
| #define _XM_IMAGE_H_ |
| |
| #define XMESA_USE_PUTPIXEL_MACRO |
| |
| extern XMesaImage *XMesaCreateImage(int bitsPerPixel, int width, int height, |
| char *data); |
| extern void XMesaDestroyImage(XMesaImage *image); |
| extern unsigned long XMesaGetPixel(XMesaImage *image, int x, int y); |
| #ifdef XMESA_USE_PUTPIXEL_MACRO |
| #define XMesaPutPixel(__i,__x,__y,__p) \ |
| { \ |
| CARD8 *__row = (CARD8 *)(__i->data + __y*__i->bytes_per_line); \ |
| CARD8 *__i8; \ |
| CARD16 *__i16; \ |
| CARD32 *__i32; \ |
| switch (__i->bits_per_pixel) { \ |
| case 8: \ |
| __i8 = (CARD8 *)__row; \ |
| __i8[__x] = (CARD8)__p; \ |
| break; \ |
| case 15: \ |
| case 16: \ |
| __i16 = (CARD16 *)__row; \ |
| __i16[__x] = (CARD16)__p; \ |
| break; \ |
| case 24: /* WARNING: architecture specific code */ \ |
| __i8 = (CARD8 *)__row; \ |
| __i8[__x*3] = (CARD8)(__p); \ |
| __i8[__x*3+1] = (CARD8)(__p>>8); \ |
| __i8[__x*3+2] = (CARD8)(__p>>16); \ |
| break; \ |
| case 32: \ |
| __i32 = (CARD32 *)__row; \ |
| __i32[__x] = (CARD32)__p; \ |
| break; \ |
| } \ |
| } |
| #else |
| extern void XMesaPutPixel(XMesaImage *image, int x, int y, |
| unsigned long pixel); |
| #endif |
| |
| #endif /* _XM_IMAGE_H_ */ |