diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915/i915_tex.c')
-rw-r--r-- | src/mesa/drivers/dri/i915/i915_tex.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_tex.c b/src/mesa/drivers/dri/i915/i915_tex.c new file mode 100644 index 0000000000..59e148ca04 --- /dev/null +++ b/src/mesa/drivers/dri/i915/i915_tex.c @@ -0,0 +1,78 @@ +/************************************************************************** + * + * 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; +} |