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* Copyright © 2011 Intel Corporation
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* Sampler information needed by VS, WM, and GS program cache keys.
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struct brw_sampler_prog_key_data {
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* Per-sampler comparison functions:
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* If comparison mode is GL_COMPARE_R_TO_TEXTURE, then this is set to one
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* of GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL, GL_GREATER, GL_NOTEQUAL,
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* GL_GEQUAL, or GL_ALWAYS. Otherwise (comparison mode is GL_NONE), this
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* field is irrelevant so it's left as GL_NONE (0).
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* While this is a GLenum, all possible values fit in 16-bits.
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uint16_t compare_funcs[BRW_MAX_TEX_UNIT];
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* EXT_texture_swizzle and DEPTH_TEXTURE_MODE swizzles.
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uint16_t swizzles[BRW_MAX_TEX_UNIT];
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uint16_t gl_clamp_mask[3];
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* YUV conversions, needed for the GL_MESA_ycbcr extension.
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uint16_t yuvtex_swap_mask; /**< UV swaped */
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void brw_populate_sampler_prog_key_data(struct gl_context *ctx,
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struct brw_sampler_prog_key_data *key, int i);