2 * Copyright © 2011 Intel Corporation
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28 * Sampler information needed by VS, WM, and GS program cache keys.
30 struct brw_sampler_prog_key_data
{
32 * Per-sampler comparison functions:
34 * If comparison mode is GL_COMPARE_R_TO_TEXTURE, then this is set to one
35 * of GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL, GL_GREATER, GL_NOTEQUAL,
36 * GL_GEQUAL, or GL_ALWAYS. Otherwise (comparison mode is GL_NONE), this
37 * field is irrelevant so it's left as GL_NONE (0).
39 * While this is a GLenum, all possible values fit in 16-bits.
41 uint16_t compare_funcs
[BRW_MAX_TEX_UNIT
];
44 * EXT_texture_swizzle and DEPTH_TEXTURE_MODE swizzles.
46 uint16_t swizzles
[BRW_MAX_TEX_UNIT
];
48 uint16_t gl_clamp_mask
[3];
51 * YUV conversions, needed for the GL_MESA_ycbcr extension.
54 uint16_t yuvtex_swap_mask
; /**< UV swaped */
57 void brw_populate_sampler_prog_key_data(struct gl_context
*ctx
,
58 struct brw_sampler_prog_key_data
*key
, int i
);