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Diffstat (limited to 'mesalib/src/mesa/x86/common_x86.c')
-rw-r--r--mesalib/src/mesa/x86/common_x86.c672
1 files changed, 336 insertions, 336 deletions
diff --git a/mesalib/src/mesa/x86/common_x86.c b/mesalib/src/mesa/x86/common_x86.c
index f5b9357cc..b70ee5084 100644
--- a/mesalib/src/mesa/x86/common_x86.c
+++ b/mesalib/src/mesa/x86/common_x86.c
@@ -1,336 +1,336 @@
-/*
- * Mesa 3-D graphics library
- * Version: 6.5.1
- *
- * Copyright (C) 1999-2006 Brian Paul 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, sublicense,
- * 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 above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * 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 NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL 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.
- */
-
-/**
- * \file common_x86.c
- *
- * Check CPU capabilities & initialize optimized funtions for this particular
- * processor.
- *
- * Changed by Andre Werthmann for using the new SSE functions.
- *
- * \author Holger Waechtler <holger@akaflieg.extern.tu-berlin.de>
- * \author Andre Werthmann <wertmann@cs.uni-potsdam.de>
- */
-
-/* XXX these includes should probably go into imports.h or glheader.h */
-#if defined(USE_SSE_ASM) && defined(__linux__)
-#include <linux/version.h>
-#endif
-#if defined(USE_SSE_ASM) && defined(__FreeBSD__)
-#include <sys/types.h>
-#include <sys/sysctl.h>
-#endif
-#if defined(USE_SSE_ASM) && defined(__OpenBSD__)
-#include <sys/param.h>
-#include <sys/sysctl.h>
-#include <machine/cpu.h>
-#endif
-
-#include "main/imports.h"
-#include "common_x86_asm.h"
-
-
-/** Bitmask of X86_FEATURE_x bits */
-int _mesa_x86_cpu_features = 0x0;
-
-static int detection_debug = GL_FALSE;
-
-/* No reason for this to be public.
- */
-extern GLuint _ASMAPI _mesa_x86_has_cpuid(void);
-extern void _ASMAPI _mesa_x86_cpuid(GLuint op, GLuint *reg_eax, GLuint *reg_ebx, GLuint *reg_ecx, GLuint *reg_edx);
-extern GLuint _ASMAPI _mesa_x86_cpuid_eax(GLuint op);
-extern GLuint _ASMAPI _mesa_x86_cpuid_ebx(GLuint op);
-extern GLuint _ASMAPI _mesa_x86_cpuid_ecx(GLuint op);
-extern GLuint _ASMAPI _mesa_x86_cpuid_edx(GLuint op);
-
-
-#if defined(USE_SSE_ASM)
-/*
- * We must verify that the Streaming SIMD Extensions are truly supported
- * on this processor before we go ahead and hook out the optimized code.
- *
- * However, I have been told by Alan Cox that all 2.4 (and later) Linux
- * kernels provide full SSE support on all processors that expose SSE via
- * the CPUID mechanism.
- */
-
-/* These are assembly functions: */
-extern void _mesa_test_os_sse_support( void );
-extern void _mesa_test_os_sse_exception_support( void );
-
-
-#if defined(WIN32)
-#ifndef STATUS_FLOAT_MULTIPLE_TRAPS
-# define STATUS_FLOAT_MULTIPLE_TRAPS (0xC00002B5L)
-#endif
-static LONG WINAPI ExceptionFilter(LPEXCEPTION_POINTERS exp)
-{
- PEXCEPTION_RECORD rec = exp->ExceptionRecord;
- PCONTEXT ctx = exp->ContextRecord;
-
- if ( rec->ExceptionCode == EXCEPTION_ILLEGAL_INSTRUCTION ) {
- _mesa_debug(NULL, "EXCEPTION_ILLEGAL_INSTRUCTION\n" );
- _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
- } else if ( rec->ExceptionCode == STATUS_FLOAT_MULTIPLE_TRAPS ) {
- _mesa_debug(NULL, "STATUS_FLOAT_MULTIPLE_TRAPS\n");
- /* Windows seems to clear the exception flag itself, we just have to increment Eip */
- } else {
- _mesa_debug(NULL, "UNEXPECTED EXCEPTION (0x%08x), terminating!\n" );
- return EXCEPTION_EXECUTE_HANDLER;
- }
-
- if ( (ctx->ContextFlags & CONTEXT_CONTROL) != CONTEXT_CONTROL ) {
- _mesa_debug(NULL, "Context does not contain control registers, terminating!\n");
- return EXCEPTION_EXECUTE_HANDLER;
- }
- ctx->Eip += 3;
-
- return EXCEPTION_CONTINUE_EXECUTION;
-}
-#endif /* WIN32 */
-
-
-/**
- * Check if SSE is supported.
- * If not, turn off the X86_FEATURE_XMM flag in _mesa_x86_cpu_features.
- */
-void _mesa_check_os_sse_support( void )
-{
-#if defined(__FreeBSD__)
- {
- int ret, enabled;
- unsigned int len;
- len = sizeof(enabled);
- ret = sysctlbyname("hw.instruction_sse", &enabled, &len, NULL, 0);
- if (ret || !enabled)
- _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
- }
-#elif defined (__NetBSD__)
- {
- int ret, enabled;
- size_t len = sizeof(enabled);
- ret = sysctlbyname("machdep.sse", &enabled, &len, (void *)NULL, 0);
- if (ret || !enabled)
- _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
- }
-#elif defined(__OpenBSD__)
- {
- int mib[2];
- int ret, enabled;
- size_t len = sizeof(enabled);
-
- mib[0] = CTL_MACHDEP;
- mib[1] = CPU_SSE;
-
- ret = sysctl(mib, 2, &enabled, &len, NULL, 0);
- if (ret || !enabled)
- _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
- }
-#elif defined(WIN32)
- LPTOP_LEVEL_EXCEPTION_FILTER oldFilter;
-
- /* Install our ExceptionFilter */
- oldFilter = SetUnhandledExceptionFilter( ExceptionFilter );
-
- if ( cpu_has_xmm ) {
- _mesa_debug(NULL, "Testing OS support for SSE...\n");
-
- _mesa_test_os_sse_support();
-
- if ( cpu_has_xmm ) {
- _mesa_debug(NULL, "Yes.\n");
- } else {
- _mesa_debug(NULL, "No!\n");
- }
- }
-
- if ( cpu_has_xmm ) {
- _mesa_debug(NULL, "Testing OS support for SSE unmasked exceptions...\n");
-
- _mesa_test_os_sse_exception_support();
-
- if ( cpu_has_xmm ) {
- _mesa_debug(NULL, "Yes.\n");
- } else {
- _mesa_debug(NULL, "No!\n");
- }
- }
-
- /* Restore previous exception filter */
- SetUnhandledExceptionFilter( oldFilter );
-
- if ( cpu_has_xmm ) {
- _mesa_debug(NULL, "Tests of OS support for SSE passed.\n");
- } else {
- _mesa_debug(NULL, "Tests of OS support for SSE failed!\n");
- }
-#else
- /* Do nothing on other platforms for now.
- */
- if (detection_debug)
- _mesa_debug(NULL, "Not testing OS support for SSE, leaving enabled.\n");
-#endif /* __FreeBSD__ */
-}
-
-#endif /* USE_SSE_ASM */
-
-
-/**
- * Initialize the _mesa_x86_cpu_features bitfield.
- * This is a no-op if called more than once.
- */
-void
-_mesa_get_x86_features(void)
-{
- static int called = 0;
-
- if (called)
- return;
-
- called = 1;
-
-#ifdef USE_X86_ASM
- _mesa_x86_cpu_features = 0x0;
-
- if (_mesa_getenv( "MESA_NO_ASM")) {
- return;
- }
-
- if (!_mesa_x86_has_cpuid()) {
- _mesa_debug(NULL, "CPUID not detected\n");
- }
- else {
- GLuint cpu_features;
- GLuint cpu_ext_features;
- GLuint cpu_ext_info;
- char cpu_vendor[13];
- GLuint result;
-
- /* get vendor name */
- _mesa_x86_cpuid(0, &result, (GLuint *)(cpu_vendor + 0), (GLuint *)(cpu_vendor + 8), (GLuint *)(cpu_vendor + 4));
- cpu_vendor[12] = '\0';
-
- if (detection_debug)
- _mesa_debug(NULL, "CPU vendor: %s\n", cpu_vendor);
-
- /* get cpu features */
- cpu_features = _mesa_x86_cpuid_edx(1);
-
- if (cpu_features & X86_CPU_FPU)
- _mesa_x86_cpu_features |= X86_FEATURE_FPU;
- if (cpu_features & X86_CPU_CMOV)
- _mesa_x86_cpu_features |= X86_FEATURE_CMOV;
-
-#ifdef USE_MMX_ASM
- if (cpu_features & X86_CPU_MMX)
- _mesa_x86_cpu_features |= X86_FEATURE_MMX;
-#endif
-
-#ifdef USE_SSE_ASM
- if (cpu_features & X86_CPU_XMM)
- _mesa_x86_cpu_features |= X86_FEATURE_XMM;
- if (cpu_features & X86_CPU_XMM2)
- _mesa_x86_cpu_features |= X86_FEATURE_XMM2;
-#endif
-
- /* query extended cpu features */
- if ((cpu_ext_info = _mesa_x86_cpuid_eax(0x80000000)) > 0x80000000) {
- if (cpu_ext_info >= 0x80000001) {
-
- cpu_ext_features = _mesa_x86_cpuid_edx(0x80000001);
-
- if (cpu_features & X86_CPU_MMX) {
-
-#ifdef USE_3DNOW_ASM
- if (cpu_ext_features & X86_CPUEXT_3DNOW)
- _mesa_x86_cpu_features |= X86_FEATURE_3DNOW;
- if (cpu_ext_features & X86_CPUEXT_3DNOW_EXT)
- _mesa_x86_cpu_features |= X86_FEATURE_3DNOWEXT;
-#endif
-
-#ifdef USE_MMX_ASM
- if (cpu_ext_features & X86_CPUEXT_MMX_EXT)
- _mesa_x86_cpu_features |= X86_FEATURE_MMXEXT;
-#endif
- }
- }
-
- /* query cpu name */
- if (cpu_ext_info >= 0x80000002) {
- GLuint ofs;
- char cpu_name[49];
- for (ofs = 0; ofs < 3; ofs++)
- _mesa_x86_cpuid(0x80000002+ofs, (GLuint *)(cpu_name + (16*ofs)+0), (GLuint *)(cpu_name + (16*ofs)+4), (GLuint *)(cpu_name + (16*ofs)+8), (GLuint *)(cpu_name + (16*ofs)+12));
- cpu_name[48] = '\0'; /* the name should be NULL terminated, but just to be sure */
-
- if (detection_debug)
- _mesa_debug(NULL, "CPU name: %s\n", cpu_name);
- }
- }
-
- }
-
-#ifdef USE_MMX_ASM
- if ( cpu_has_mmx ) {
- if ( _mesa_getenv( "MESA_NO_MMX" ) == 0 ) {
- if (detection_debug)
- _mesa_debug(NULL, "MMX cpu detected.\n");
- } else {
- _mesa_x86_cpu_features &= ~(X86_FEATURE_MMX);
- }
- }
-#endif
-
-#ifdef USE_3DNOW_ASM
- if ( cpu_has_3dnow ) {
- if ( _mesa_getenv( "MESA_NO_3DNOW" ) == 0 ) {
- if (detection_debug)
- _mesa_debug(NULL, "3DNow! cpu detected.\n");
- } else {
- _mesa_x86_cpu_features &= ~(X86_FEATURE_3DNOW);
- }
- }
-#endif
-
-#ifdef USE_SSE_ASM
- if ( cpu_has_xmm ) {
- if ( _mesa_getenv( "MESA_NO_SSE" ) == 0 ) {
- if (detection_debug)
- _mesa_debug(NULL, "SSE cpu detected.\n");
- if ( _mesa_getenv( "MESA_FORCE_SSE" ) == 0 ) {
- _mesa_check_os_sse_support();
- }
- } else {
- _mesa_debug(NULL, "SSE cpu detected, but switched off by user.\n");
- _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
- }
- }
-#endif
-
-#endif /* USE_X86_ASM */
-
- (void) detection_debug;
-}
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 Brian Paul 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, sublicense,
+ * 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 above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL 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.
+ */
+
+/**
+ * \file common_x86.c
+ *
+ * Check CPU capabilities & initialize optimized funtions for this particular
+ * processor.
+ *
+ * Changed by Andre Werthmann for using the new SSE functions.
+ *
+ * \author Holger Waechtler <holger@akaflieg.extern.tu-berlin.de>
+ * \author Andre Werthmann <wertmann@cs.uni-potsdam.de>
+ */
+
+/* XXX these includes should probably go into imports.h or glheader.h */
+#if defined(USE_SSE_ASM) && defined(__linux__)
+#include <linux/version.h>
+#endif
+#if defined(USE_SSE_ASM) && defined(__FreeBSD__)
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#endif
+#if defined(USE_SSE_ASM) && defined(__OpenBSD__)
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <machine/cpu.h>
+#endif
+
+#include "main/imports.h"
+#include "common_x86_asm.h"
+
+
+/** Bitmask of X86_FEATURE_x bits */
+int _mesa_x86_cpu_features = 0x0;
+
+static int detection_debug = GL_FALSE;
+
+/* No reason for this to be public.
+ */
+extern GLuint _ASMAPI _mesa_x86_has_cpuid(void);
+extern void _ASMAPI _mesa_x86_cpuid(GLuint op, GLuint *reg_eax, GLuint *reg_ebx, GLuint *reg_ecx, GLuint *reg_edx);
+extern GLuint _ASMAPI _mesa_x86_cpuid_eax(GLuint op);
+extern GLuint _ASMAPI _mesa_x86_cpuid_ebx(GLuint op);
+extern GLuint _ASMAPI _mesa_x86_cpuid_ecx(GLuint op);
+extern GLuint _ASMAPI _mesa_x86_cpuid_edx(GLuint op);
+
+
+#if defined(USE_SSE_ASM)
+/*
+ * We must verify that the Streaming SIMD Extensions are truly supported
+ * on this processor before we go ahead and hook out the optimized code.
+ *
+ * However, I have been told by Alan Cox that all 2.4 (and later) Linux
+ * kernels provide full SSE support on all processors that expose SSE via
+ * the CPUID mechanism.
+ */
+
+/* These are assembly functions: */
+extern void _mesa_test_os_sse_support( void );
+extern void _mesa_test_os_sse_exception_support( void );
+
+
+#if defined(WIN32)
+#ifndef STATUS_FLOAT_MULTIPLE_TRAPS
+# define STATUS_FLOAT_MULTIPLE_TRAPS (0xC00002B5L)
+#endif
+static LONG WINAPI ExceptionFilter(LPEXCEPTION_POINTERS exp)
+{
+ PEXCEPTION_RECORD rec = exp->ExceptionRecord;
+ PCONTEXT ctx = exp->ContextRecord;
+
+ if ( rec->ExceptionCode == EXCEPTION_ILLEGAL_INSTRUCTION ) {
+ _mesa_debug(NULL, "EXCEPTION_ILLEGAL_INSTRUCTION\n" );
+ _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
+ } else if ( rec->ExceptionCode == STATUS_FLOAT_MULTIPLE_TRAPS ) {
+ _mesa_debug(NULL, "STATUS_FLOAT_MULTIPLE_TRAPS\n");
+ /* Windows seems to clear the exception flag itself, we just have to increment Eip */
+ } else {
+ _mesa_debug(NULL, "UNEXPECTED EXCEPTION (0x%08x), terminating!\n" );
+ return EXCEPTION_EXECUTE_HANDLER;
+ }
+
+ if ( (ctx->ContextFlags & CONTEXT_CONTROL) != CONTEXT_CONTROL ) {
+ _mesa_debug(NULL, "Context does not contain control registers, terminating!\n");
+ return EXCEPTION_EXECUTE_HANDLER;
+ }
+ ctx->Eip += 3;
+
+ return EXCEPTION_CONTINUE_EXECUTION;
+}
+#endif /* WIN32 */
+
+
+/**
+ * Check if SSE is supported.
+ * If not, turn off the X86_FEATURE_XMM flag in _mesa_x86_cpu_features.
+ */
+void _mesa_check_os_sse_support( void )
+{
+#if defined(__FreeBSD__)
+ {
+ int ret, enabled;
+ unsigned int len;
+ len = sizeof(enabled);
+ ret = sysctlbyname("hw.instruction_sse", &enabled, &len, NULL, 0);
+ if (ret || !enabled)
+ _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
+ }
+#elif defined (__NetBSD__)
+ {
+ int ret, enabled;
+ size_t len = sizeof(enabled);
+ ret = sysctlbyname("machdep.sse", &enabled, &len, (void *)NULL, 0);
+ if (ret || !enabled)
+ _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
+ }
+#elif defined(__OpenBSD__)
+ {
+ int mib[2];
+ int ret, enabled;
+ size_t len = sizeof(enabled);
+
+ mib[0] = CTL_MACHDEP;
+ mib[1] = CPU_SSE;
+
+ ret = sysctl(mib, 2, &enabled, &len, NULL, 0);
+ if (ret || !enabled)
+ _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
+ }
+#elif defined(WIN32)
+ LPTOP_LEVEL_EXCEPTION_FILTER oldFilter;
+
+ /* Install our ExceptionFilter */
+ oldFilter = SetUnhandledExceptionFilter( ExceptionFilter );
+
+ if ( cpu_has_xmm ) {
+ _mesa_debug(NULL, "Testing OS support for SSE...\n");
+
+ _mesa_test_os_sse_support();
+
+ if ( cpu_has_xmm ) {
+ _mesa_debug(NULL, "Yes.\n");
+ } else {
+ _mesa_debug(NULL, "No!\n");
+ }
+ }
+
+ if ( cpu_has_xmm ) {
+ _mesa_debug(NULL, "Testing OS support for SSE unmasked exceptions...\n");
+
+ _mesa_test_os_sse_exception_support();
+
+ if ( cpu_has_xmm ) {
+ _mesa_debug(NULL, "Yes.\n");
+ } else {
+ _mesa_debug(NULL, "No!\n");
+ }
+ }
+
+ /* Restore previous exception filter */
+ SetUnhandledExceptionFilter( oldFilter );
+
+ if ( cpu_has_xmm ) {
+ _mesa_debug(NULL, "Tests of OS support for SSE passed.\n");
+ } else {
+ _mesa_debug(NULL, "Tests of OS support for SSE failed!\n");
+ }
+#else
+ /* Do nothing on other platforms for now.
+ */
+ if (detection_debug)
+ _mesa_debug(NULL, "Not testing OS support for SSE, leaving enabled.\n");
+#endif /* __FreeBSD__ */
+}
+
+#endif /* USE_SSE_ASM */
+
+
+/**
+ * Initialize the _mesa_x86_cpu_features bitfield.
+ * This is a no-op if called more than once.
+ */
+void
+_mesa_get_x86_features(void)
+{
+ static int called = 0;
+
+ if (called)
+ return;
+
+ called = 1;
+
+#ifdef USE_X86_ASM
+ _mesa_x86_cpu_features = 0x0;
+
+ if (_mesa_getenv( "MESA_NO_ASM")) {
+ return;
+ }
+
+ if (!_mesa_x86_has_cpuid()) {
+ _mesa_debug(NULL, "CPUID not detected\n");
+ }
+ else {
+ GLuint cpu_features;
+ GLuint cpu_ext_features;
+ GLuint cpu_ext_info;
+ char cpu_vendor[13];
+ GLuint result;
+
+ /* get vendor name */
+ _mesa_x86_cpuid(0, &result, (GLuint *)(cpu_vendor + 0), (GLuint *)(cpu_vendor + 8), (GLuint *)(cpu_vendor + 4));
+ cpu_vendor[12] = '\0';
+
+ if (detection_debug)
+ _mesa_debug(NULL, "CPU vendor: %s\n", cpu_vendor);
+
+ /* get cpu features */
+ cpu_features = _mesa_x86_cpuid_edx(1);
+
+ if (cpu_features & X86_CPU_FPU)
+ _mesa_x86_cpu_features |= X86_FEATURE_FPU;
+ if (cpu_features & X86_CPU_CMOV)
+ _mesa_x86_cpu_features |= X86_FEATURE_CMOV;
+
+#ifdef USE_MMX_ASM
+ if (cpu_features & X86_CPU_MMX)
+ _mesa_x86_cpu_features |= X86_FEATURE_MMX;
+#endif
+
+#ifdef USE_SSE_ASM
+ if (cpu_features & X86_CPU_XMM)
+ _mesa_x86_cpu_features |= X86_FEATURE_XMM;
+ if (cpu_features & X86_CPU_XMM2)
+ _mesa_x86_cpu_features |= X86_FEATURE_XMM2;
+#endif
+
+ /* query extended cpu features */
+ if ((cpu_ext_info = _mesa_x86_cpuid_eax(0x80000000)) > 0x80000000) {
+ if (cpu_ext_info >= 0x80000001) {
+
+ cpu_ext_features = _mesa_x86_cpuid_edx(0x80000001);
+
+ if (cpu_features & X86_CPU_MMX) {
+
+#ifdef USE_3DNOW_ASM
+ if (cpu_ext_features & X86_CPUEXT_3DNOW)
+ _mesa_x86_cpu_features |= X86_FEATURE_3DNOW;
+ if (cpu_ext_features & X86_CPUEXT_3DNOW_EXT)
+ _mesa_x86_cpu_features |= X86_FEATURE_3DNOWEXT;
+#endif
+
+#ifdef USE_MMX_ASM
+ if (cpu_ext_features & X86_CPUEXT_MMX_EXT)
+ _mesa_x86_cpu_features |= X86_FEATURE_MMXEXT;
+#endif
+ }
+ }
+
+ /* query cpu name */
+ if (cpu_ext_info >= 0x80000002) {
+ GLuint ofs;
+ char cpu_name[49];
+ for (ofs = 0; ofs < 3; ofs++)
+ _mesa_x86_cpuid(0x80000002+ofs, (GLuint *)(cpu_name + (16*ofs)+0), (GLuint *)(cpu_name + (16*ofs)+4), (GLuint *)(cpu_name + (16*ofs)+8), (GLuint *)(cpu_name + (16*ofs)+12));
+ cpu_name[48] = '\0'; /* the name should be NULL terminated, but just to be sure */
+
+ if (detection_debug)
+ _mesa_debug(NULL, "CPU name: %s\n", cpu_name);
+ }
+ }
+
+ }
+
+#ifdef USE_MMX_ASM
+ if ( cpu_has_mmx ) {
+ if ( _mesa_getenv( "MESA_NO_MMX" ) == 0 ) {
+ if (detection_debug)
+ _mesa_debug(NULL, "MMX cpu detected.\n");
+ } else {
+ _mesa_x86_cpu_features &= ~(X86_FEATURE_MMX);
+ }
+ }
+#endif
+
+#ifdef USE_3DNOW_ASM
+ if ( cpu_has_3dnow ) {
+ if ( _mesa_getenv( "MESA_NO_3DNOW" ) == 0 ) {
+ if (detection_debug)
+ _mesa_debug(NULL, "3DNow! cpu detected.\n");
+ } else {
+ _mesa_x86_cpu_features &= ~(X86_FEATURE_3DNOW);
+ }
+ }
+#endif
+
+#ifdef USE_SSE_ASM
+ if ( cpu_has_xmm ) {
+ if ( _mesa_getenv( "MESA_NO_SSE" ) == 0 ) {
+ if (detection_debug)
+ _mesa_debug(NULL, "SSE cpu detected.\n");
+ if ( _mesa_getenv( "MESA_FORCE_SSE" ) == 0 ) {
+ _mesa_check_os_sse_support();
+ }
+ } else {
+ _mesa_debug(NULL, "SSE cpu detected, but switched off by user.\n");
+ _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
+ }
+ }
+#endif
+
+#endif /* USE_X86_ASM */
+
+ (void) detection_debug;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 16:03:31 +0000