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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, 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 TUNGSTEN GRAPHICS 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.
*
**************************************************************************/
#include "glheader.h"
#include "mtypes.h"
#include "imports.h"
#include "simple_list.h"
#include "enums.h"
#include "image.h"
#include "texstore.h"
#include "texformat.h"
#include "texmem.h"
#include "swrast/swrast.h"
#include "mm.h"
#include "intel_ioctl.h"
#include "i915_context.h"
#include "i915_reg.h"
static void
i915TexEnv(GLcontext * ctx, GLenum target,
GLenum pname, const GLfloat * param)
{
struct i915_context *i915 = I915_CONTEXT(ctx);
switch (pname) {
case GL_TEXTURE_LOD_BIAS:{
GLuint unit = ctx->Texture.CurrentUnit;
GLint b = (int) ((*param) * 16.0);
if (b > 255)
b = 255;
if (b < -256)
b = -256;
I915_STATECHANGE(i915, I915_UPLOAD_TEX(unit));
i915->lodbias_ss2[unit] =
((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK);
break;
}
default:
break;
}
}
void
i915InitTextureFuncs(struct dd_function_table *functions)
{
functions->TexEnv = i915TexEnv;
}
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