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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4358 | Serge | 1 | /* |
| 2 | * Mesa 3-D graphics library |
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| 3 | * |
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| 4 | * Copyright (C) 2009 VMware, Inc. All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the "Software"), |
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| 8 | * to deal in the Software without restriction, including without limitation |
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| 9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 10 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 11 | * Software is furnished to do so, subject to the following conditions: |
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| 12 | * |
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| 13 | * The above copyright notice and this permission notice shall be included |
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| 14 | * in all copies or substantial portions of the Software. |
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| 15 | * |
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| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 17 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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| 20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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| 21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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| 22 | * OTHER DEALINGS IN THE SOFTWARE. |
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| 23 | */ |
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| 24 | |||
| 25 | |||
| 26 | #include "main/compiler.h" |
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| 27 | #include "main/cpuinfo.h" |
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| 28 | |||
| 29 | |||
| 30 | /** |
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| 31 | * This function should be called before the various "cpu_has_foo" macros |
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| 32 | * are used. |
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| 33 | */ |
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| 34 | void |
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| 35 | _mesa_get_cpu_features(void) |
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| 36 | { |
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| 37 | #ifdef USE_X86_ASM |
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| 38 | _mesa_get_x86_features(); |
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| 39 | #endif |
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| 40 | } |
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| 41 | |||
| 42 | |||
| 43 | /** |
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| 44 | * Return a string describing the CPU architexture and extensions that |
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| 45 | * Mesa is using (such as SSE or Altivec). |
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| 46 | * \return information string, free it with free() |
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| 47 | */ |
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| 48 | char * |
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| 49 | _mesa_get_cpu_string(void) |
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| 50 | { |
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| 51 | #define MAX_STRING 50 |
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| 52 | char *buffer; |
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| 53 | |||
| 54 | buffer = malloc(MAX_STRING); |
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| 55 | if (!buffer) |
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| 56 | return NULL; |
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| 57 | |||
| 58 | buffer[0] = 0; |
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| 59 | |||
| 60 | #ifdef USE_X86_ASM |
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| 61 | |||
| 62 | if (_mesa_x86_cpu_features) { |
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| 63 | strcat(buffer, "x86"); |
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| 64 | } |
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| 65 | |||
| 66 | # ifdef USE_MMX_ASM |
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| 67 | if (cpu_has_mmx) { |
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| 68 | strcat(buffer, (cpu_has_mmxext) ? "/MMX+" : "/MMX"); |
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| 69 | } |
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| 70 | # endif |
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| 71 | # ifdef USE_3DNOW_ASM |
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| 72 | if (cpu_has_3dnow) { |
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| 73 | strcat(buffer, (cpu_has_3dnowext) ? "/3DNow!+" : "/3DNow!"); |
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| 74 | } |
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| 75 | # endif |
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| 76 | # ifdef USE_SSE_ASM |
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| 77 | if (cpu_has_xmm) { |
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| 78 | strcat(buffer, (cpu_has_xmm2) ? "/SSE2" : "/SSE"); |
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| 79 | } |
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| 80 | # endif |
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| 81 | |||
| 82 | assert(strlen(buffer) < MAX_STRING); |
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| 83 | |||
| 84 | return buffer; |
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| 85 | } |