| /************************************************************************** |
| * |
| * 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; |
| */ |
| } |