| /* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_tex.h,v 1.7 2002/02/22 21:44:58 dawes Exp $ */ |
| /************************************************************************** |
| |
| Copyright 1999, 2000 ATI Technologies Inc. and 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 |
| on 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 |
| ATI, PRECISION INSIGHT AND/OR THEIR 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: |
| * Gareth Hughes <gareth@valinux.com> |
| * Kevin E. Martin <martin@valinux.com> |
| * |
| */ |
| |
| #ifndef __R128_TEX_H__ |
| #define __R128_TEX_H__ |
| |
| extern void r128UpdateTextureState( GLcontext *ctx ); |
| |
| extern void r128UploadTexImages( r128ContextPtr rmesa, r128TexObjPtr t ); |
| |
| extern void r128DestroyTexObj( r128ContextPtr rmesa, r128TexObjPtr t ); |
| |
| extern void r128InitTextureFuncs( struct dd_function_table *functions ); |
| |
| |
| /* ================================================================ |
| * Color conversion macros: |
| */ |
| |
| #define R128PACKCOLOR332( r, g, b ) \ |
| (((r) & 0xe0) | (((g) & 0xe0) >> 3) | (((b) & 0xc0) >> 6)) |
| |
| #define R128PACKCOLOR1555( r, g, b, a ) \ |
| ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \ |
| ((a) ? 0x8000 : 0)) |
| |
| #define R128PACKCOLOR565( r, g, b ) \ |
| ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3)) |
| |
| #define R128PACKCOLOR888( r, g, b ) \ |
| (((r) << 16) | ((g) << 8) | (b)) |
| |
| #define R128PACKCOLOR8888( r, g, b, a ) \ |
| (((a) << 24) | ((r) << 16) | ((g) << 8) | (b)) |
| |
| #define R128PACKCOLOR4444( r, g, b, a ) \ |
| ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4)) |
| |
| static INLINE u_int32_t r128PackColor( GLuint cpp, |
| GLubyte r, GLubyte g, |
| GLubyte b, GLubyte a ) |
| { |
| switch ( cpp ) { |
| case 2: |
| return R128PACKCOLOR565( r, g, b ); |
| case 4: |
| return R128PACKCOLOR8888( r, g, b, a ); |
| default: |
| return 0; |
| } |
| } |
| |
| #endif /* __R128_TEX_H__ */ |