diff options
Diffstat (limited to 'src/mesa/drivers/dri/i830/i830_state.h')
| -rw-r--r-- | src/mesa/drivers/dri/i830/i830_state.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i830/i830_state.h b/src/mesa/drivers/dri/i830/i830_state.h new file mode 100644 index 0000000000..b651651246 --- /dev/null +++ b/src/mesa/drivers/dri/i830/i830_state.h @@ -0,0 +1,68 @@ +/************************************************************************** + +Copyright 2001 VA Linux Systems Inc., Fremont, California. + +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, VA LINUX SYSTEMS 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. + +**************************************************************************/ + +/* $XFree86: xc/lib/GL/mesa/src/drv/i830/i830_state.h,v 1.3 2002/12/10 01:26:53 dawes Exp $ */ + +/* + * Author: + * Jeff Hartmann <jhartmann@2d3d.com> + * + * Heavily based on the I810 driver, which was written by: + * Keith Whitwell <keith@tungstengraphics.com> + */ +#ifndef _I830_STATE_H +#define _I830_STATE_H + +#include "i830_context.h" +#include "colormac.h" +#define FloatToInt(F) ((int)(F)) + +/* + * * This function/macro is sensitive to precision. Test carefully + * * if you change it. + * */ +#define FLOAT_COLOR_TO_UBYTE_COLOR(b, f) \ + do { \ + union {GLfloat r; GLuint i; } tmp; \ + tmp.r = f; \ + b = ((tmp.i >= IEEE_ONE) \ + ? ((GLint)tmp.i < 0) ? (GLubyte)0 : (GLubyte)255 \ + : (tmp.r = tmp.r*(255.0F/256.0F) + 32768.0F, \ + (GLubyte)tmp.i)); \ + } while (0) + + + +extern void i830DDInitState( GLcontext *ctx ); +extern void i830DDInitStateFuncs( GLcontext *ctx ); + +extern void i830PrintDirty( const char *msg, GLuint state ); +extern void i830SetDrawBuffer(GLcontext *ctx, GLenum mode ); + +extern void i830Fallback( i830ContextPtr imesa, GLuint bit, GLboolean mode ); +#define FALLBACK( imesa, bit, mode ) i830Fallback( imesa, bit, mode ) +#endif |