0,0 → 1,123 |
/************************************************************************** |
* |
* Copyright 2010-2012 VMware, Inc. |
* 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 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 |
* THE COPYRIGHT HOLDERS, AUTHORS 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. |
* |
* The above copyright notice and this permission notice (including the |
* next paragraph) shall be included in all copies or substantial portions |
* of the Software. |
* |
**************************************************************************/ |
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#ifndef LP_BLD_LIMITS_H_ |
#define LP_BLD_LIMITS_H_ |
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#include <limits.h> |
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#include "pipe/p_state.h" |
#include "pipe/p_defines.h" |
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/* |
* TGSI translation limits. |
* |
* Some are slightly above SM 3.0 requirements to give some wiggle room to |
* the state trackers. |
*/ |
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#define LP_MAX_TGSI_TEMPS 256 |
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#define LP_MAX_TGSI_ADDRS 16 |
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#define LP_MAX_TGSI_IMMEDIATES 256 |
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#define LP_MAX_TGSI_PREDS 16 |
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#define LP_MAX_TGSI_CONST_BUFFERS 16 |
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/** |
* Maximum control flow nesting |
* |
* SM4.0 requires 64 (per subroutine actually, subroutine nesting itself is 32) |
* SM3.0 requires 24 (most likely per subroutine too) |
* add 2 more (some translation could add one more) |
*/ |
#define LP_MAX_TGSI_NESTING 66 |
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/** |
* Maximum iterations before loop termination |
* Shared between every loop in a TGSI shader |
*/ |
#define LP_MAX_TGSI_LOOP_ITERATIONS 65535 |
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/** |
* Some of these limits are actually infinite (i.e., only limited by available |
* memory), however advertising INT_MAX would cause some test problems to |
* actually try to allocate the maximum and run out of memory and crash. So |
* stick with something reasonable here. |
*/ |
static INLINE int |
gallivm_get_shader_param(enum pipe_shader_cap param) |
{ |
switch(param) { |
case PIPE_SHADER_CAP_MAX_INSTRUCTIONS: |
case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS: |
case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS: |
case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS: |
return 1 * 1024 * 1024; |
case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH: |
return LP_MAX_TGSI_NESTING; |
case PIPE_SHADER_CAP_MAX_INPUTS: |
return PIPE_MAX_SHADER_INPUTS; |
case PIPE_SHADER_CAP_MAX_CONSTS: |
return 16 * 2024; |
case PIPE_SHADER_CAP_MAX_CONST_BUFFERS: |
return PIPE_MAX_CONSTANT_BUFFERS; |
case PIPE_SHADER_CAP_MAX_TEMPS: |
return LP_MAX_TGSI_TEMPS; |
case PIPE_SHADER_CAP_MAX_ADDRS: |
return LP_MAX_TGSI_ADDRS; |
case PIPE_SHADER_CAP_MAX_PREDS: |
return LP_MAX_TGSI_PREDS; |
case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED: |
return 1; |
case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR: |
case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR: |
case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR: |
case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR: |
return 1; |
case PIPE_SHADER_CAP_SUBROUTINES: |
return 1; |
case PIPE_SHADER_CAP_INTEGERS: |
return 1; |
case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS: |
return PIPE_MAX_SAMPLERS; |
case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED: |
return 1; |
default: |
return 0; |
} |
} |
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#endif /* LP_BLD_LIMITS_H_ */ |