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      1 /*	$NetBSD: svga3d_limits.h,v 1.3 2021/12/18 23:45:45 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
      4 /**********************************************************
      5  * Copyright 2007-2015 VMware, Inc.
      6  *
      7  * Permission is hereby granted, free of charge, to any person
      8  * obtaining a copy of this software and associated documentation
      9  * files (the "Software"), to deal in the Software without
     10  * restriction, including without limitation the rights to use, copy,
     11  * modify, merge, publish, distribute, sublicense, and/or sell copies
     12  * of the Software, and to permit persons to whom the Software is
     13  * furnished to do so, subject to the following conditions:
     14  *
     15  * The above copyright notice and this permission notice shall be
     16  * included in all copies or substantial portions of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     21  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     22  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     23  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     25  * SOFTWARE.
     26  *
     27  **********************************************************/
     28 
     29 /*
     30  * svga3d_limits.h --
     31  *
     32  *       SVGA 3d hardware limits
     33  */
     34 
     35 #ifndef _SVGA3D_LIMITS_H_
     36 #define _SVGA3D_LIMITS_H_
     37 
     38 #define INCLUDE_ALLOW_MODULE
     39 #define INCLUDE_ALLOW_USERLEVEL
     40 #define INCLUDE_ALLOW_VMCORE
     41 
     42 #include "includeCheck.h"
     43 
     44 #define SVGA3D_NUM_CLIPPLANES                   6
     45 #define SVGA3D_MAX_RENDER_TARGETS               8
     46 #define SVGA3D_MAX_SIMULTANEOUS_RENDER_TARGETS  (SVGA3D_MAX_RENDER_TARGETS)
     47 #define SVGA3D_MAX_UAVIEWS                      8
     48 #define SVGA3D_MAX_CONTEXT_IDS                  256
     49 #define SVGA3D_MAX_SURFACE_IDS                  (32 * 1024)
     50 
     51 /*
     52  * Maximum ID a shader can be assigned on a given context.
     53  */
     54 #define SVGA3D_MAX_SHADERIDS                    5000
     55 /*
     56  * Maximum number of shaders of a given type that can be defined
     57  * (including all contexts).
     58  */
     59 #define SVGA3D_MAX_SIMULTANEOUS_SHADERS         20000
     60 
     61 #define SVGA3D_NUM_TEXTURE_UNITS                32
     62 #define SVGA3D_NUM_LIGHTS                       8
     63 
     64 /*
     65  * Maximum size in dwords of shader text the SVGA device will allow.
     66  * Currently 8 MB.
     67  */
     68 #define SVGA3D_MAX_SHADER_MEMORY_BYTES (8 * 1024 * 1024)
     69 #define SVGA3D_MAX_SHADER_MEMORY  (SVGA3D_MAX_SHADER_MEMORY_BYTES / \
     70                                    sizeof(uint32))
     71 
     72 #define SVGA3D_MAX_CLIP_PLANES    6
     73 
     74 /*
     75  * This is the limit to the number of fixed-function texture
     76  * transforms and texture coordinates we can support. It does *not*
     77  * correspond to the number of texture image units (samplers) we
     78  * support!
     79  */
     80 #define SVGA3D_MAX_TEXTURE_COORDS 8
     81 
     82 /*
     83  * Number of faces in a cubemap.
     84  */
     85 #define SVGA3D_MAX_SURFACE_FACES 6
     86 
     87 /*
     88  * Maximum number of array indexes in a GB surface (with DX enabled).
     89  */
     90 #define SVGA3D_MAX_SURFACE_ARRAYSIZE 512
     91 
     92 /*
     93  * The maximum number of vertex arrays we're guaranteed to support in
     94  * SVGA_3D_CMD_DRAWPRIMITIVES.
     95  */
     96 #define SVGA3D_MAX_VERTEX_ARRAYS   32
     97 
     98 /*
     99  * The maximum number of primitive ranges we're guaranteed to support
    100  * in SVGA_3D_CMD_DRAWPRIMITIVES.
    101  */
    102 #define SVGA3D_MAX_DRAW_PRIMITIVE_RANGES 32
    103 
    104 #endif /* _SVGA3D_LIMITS_H_ */
    105