mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-12-20 17:31:10 +00:00
368 lines
9.7 KiB
C++
368 lines
9.7 KiB
C++
#include "doomtype.h"
|
|
#include "doomdef.h"
|
|
#include "x86.h"
|
|
|
|
extern "C"
|
|
{
|
|
CPUInfo CPU;
|
|
}
|
|
|
|
#if !defined(__amd64__) && !defined(__i386__) && !defined(_M_IX86) && !defined(_M_X64)
|
|
void CheckCPUID(CPUInfo *cpu)
|
|
{
|
|
memset(cpu, 0, sizeof(*cpu));
|
|
cpu->DataL1LineSize = 32; // Assume a 32-byte cache line
|
|
}
|
|
|
|
void DumpCPUInfo(const CPUInfo *cpu)
|
|
{
|
|
}
|
|
#else
|
|
|
|
#ifdef _MSC_VER
|
|
#include <intrin.h>
|
|
#endif
|
|
#include <mmintrin.h>
|
|
#include <emmintrin.h>
|
|
|
|
|
|
#ifdef __GNUC__
|
|
#if defined(__i386__) && defined(__PIC__)
|
|
// %ebx may by the PIC register. */
|
|
#define __cpuid(output, func) \
|
|
__asm__ __volatile__("xchgl\t%%ebx, %1\n\t" \
|
|
"cpuid\n\t" \
|
|
"xchgl\t%%ebx, %1\n\t" \
|
|
: "=a" ((output)[0]), "=r" ((output)[1]), "=c" ((output)[2]), "=d" ((output)[3]) \
|
|
: "a" (func));
|
|
#else
|
|
#define __cpuid(output, func) __asm__ __volatile__("cpuid" : "=a" ((output)[0]),\
|
|
"=b" ((output)[1]), "=c" ((output)[2]), "=d" ((output)[3]) : "a" (func));
|
|
#endif
|
|
#endif
|
|
|
|
void CheckCPUID(CPUInfo *cpu)
|
|
{
|
|
int foo[4];
|
|
unsigned int maxext;
|
|
|
|
memset(cpu, 0, sizeof(*cpu));
|
|
|
|
cpu->DataL1LineSize = 32; // Assume a 32-byte cache line
|
|
|
|
#if !defined(_M_IX86) && !defined(__i386__) && !defined(_M_X64) && !defined(__amd64__)
|
|
return;
|
|
#else
|
|
|
|
#if defined(_M_IX86) || defined(__i386__)
|
|
// Old 486s do not have CPUID, so we must test for its presence.
|
|
// This code is adapted from the samples in AMD's document
|
|
// entitled "AMD-K6 MMX Processor Multimedia Extensions."
|
|
#ifndef __GNUC__
|
|
__asm
|
|
{
|
|
pushfd // save EFLAGS
|
|
pop eax // store EFLAGS in EAX
|
|
mov ecx,eax // save in ECX for later testing
|
|
xor eax,0x00200000 // toggle bit 21
|
|
push eax // put to stack
|
|
popfd // save changed EAX to EFLAGS
|
|
pushfd // push EFLAGS to TOS
|
|
pop eax // store EFLAGS in EAX
|
|
cmp eax,ecx // see if bit 21 has changed
|
|
jne haveid // if no change, then no CPUID
|
|
}
|
|
return;
|
|
haveid:
|
|
#else
|
|
int oldfd, newfd;
|
|
|
|
__asm__ __volatile__("\t"
|
|
"pushf\n\t"
|
|
"popl %0\n\t"
|
|
"movl %0,%1\n\t"
|
|
"xorl $0x200000,%0\n\t"
|
|
"pushl %0\n\t"
|
|
"popf\n\t"
|
|
"pushf\n\t"
|
|
"popl %0\n\t"
|
|
: "=r" (newfd), "=r" (oldfd));
|
|
if (oldfd == newfd)
|
|
{
|
|
return;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
// Get vendor ID
|
|
__cpuid(foo, 0);
|
|
cpu->dwVendorID[0] = foo[1];
|
|
cpu->dwVendorID[1] = foo[3];
|
|
cpu->dwVendorID[2] = foo[2];
|
|
if (foo[1] == MAKE_ID('A','u','t','h') &&
|
|
foo[3] == MAKE_ID('e','n','t','i') &&
|
|
foo[2] == MAKE_ID('c','A','M','D'))
|
|
{
|
|
cpu->bIsAMD = true;
|
|
}
|
|
|
|
// Get features flags and other info
|
|
__cpuid(foo, 1);
|
|
cpu->FeatureFlags[0] = foo[1]; // Store brand index and other stuff
|
|
cpu->FeatureFlags[1] = foo[2]; // Store extended feature flags
|
|
cpu->FeatureFlags[2] = foo[3]; // Store feature flags
|
|
|
|
// If CLFLUSH instruction is supported, get the real cache line size.
|
|
if (foo[3] & (1 << 19))
|
|
{
|
|
cpu->DataL1LineSize = (foo[1] & 0xFF00) >> (8 - 3);
|
|
}
|
|
|
|
cpu->Stepping = foo[0] & 0x0F;
|
|
cpu->Type = (foo[0] & 0x3000) >> 12; // valid on Intel only
|
|
cpu->Model = (foo[0] & 0xF0) >> 4;
|
|
cpu->Family = (foo[0] & 0xF00) >> 8;
|
|
|
|
if (cpu->Family == 15)
|
|
{ // Add extended family.
|
|
cpu->Family += (foo[0] >> 20) & 0xFF;
|
|
}
|
|
if (cpu->Family == 6 || cpu->Family == 15)
|
|
{ // Add extended model ID.
|
|
cpu->Model |= (foo[0] >> 12) & 0xF0;
|
|
}
|
|
|
|
// Check for extended functions.
|
|
__cpuid(foo, 0x80000000);
|
|
maxext = (unsigned int)foo[0];
|
|
|
|
if (maxext >= 0x80000004)
|
|
{ // Get processor brand string.
|
|
__cpuid((int *)&cpu->dwCPUString[0], 0x80000002);
|
|
__cpuid((int *)&cpu->dwCPUString[4], 0x80000003);
|
|
__cpuid((int *)&cpu->dwCPUString[8], 0x80000004);
|
|
}
|
|
|
|
if (cpu->bIsAMD)
|
|
{
|
|
if (maxext >= 0x80000005)
|
|
{ // Get data L1 cache info.
|
|
__cpuid(foo, 0x80000005);
|
|
cpu->AMD_DataL1Info = foo[2];
|
|
}
|
|
if (maxext >= 0x80000001)
|
|
{ // Get AMD-specific feature flags.
|
|
__cpuid(foo, 0x80000001);
|
|
cpu->AMDStepping = foo[0] & 0x0F;
|
|
cpu->AMDModel = (foo[0] & 0xF0) >> 4;
|
|
cpu->AMDFamily = (foo[0] & 0xF00) >> 8;
|
|
|
|
if (cpu->AMDFamily == 15)
|
|
{ // Add extended model and family.
|
|
cpu->AMDFamily += (foo[0] >> 20) & 0xFF;
|
|
cpu->AMDModel |= (foo[0] >> 12) & 0xF0;
|
|
}
|
|
cpu->FeatureFlags[3] = foo[3]; // AMD feature flags
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void DumpCPUInfo(const CPUInfo *cpu)
|
|
{
|
|
char cpustring[4*4*3+1];
|
|
|
|
// Why does Intel right-justify this string (on P4s)
|
|
// or add extra spaces (on Cores)?
|
|
const char *f = cpu->CPUString;
|
|
char *t;
|
|
|
|
// Skip extra whitespace at the beginning.
|
|
while (*f == ' ')
|
|
{
|
|
++f;
|
|
}
|
|
|
|
// Copy string to temp buffer, but condense consecutive
|
|
// spaces to a single space character.
|
|
for (t = cpustring; *f != '\0'; ++f)
|
|
{
|
|
if (*f == ' ' && *(f - 1) == ' ')
|
|
{
|
|
continue;
|
|
}
|
|
*t++ = *f;
|
|
}
|
|
*t = '\0';
|
|
|
|
if (cpu->VendorID[0])
|
|
{
|
|
Printf("CPU Vendor ID: %s\n", cpu->VendorID);
|
|
if (cpustring[0])
|
|
{
|
|
Printf(" Name: %s\n", cpustring);
|
|
}
|
|
if (cpu->bIsAMD)
|
|
{
|
|
Printf(" Family %d (%d), Model %d, Stepping %d\n",
|
|
cpu->Family, cpu->AMDFamily, cpu->AMDModel, cpu->AMDStepping);
|
|
}
|
|
else
|
|
{
|
|
Printf(" Family %d, Model %d, Stepping %d\n",
|
|
cpu->Family, cpu->Model, cpu->Stepping);
|
|
}
|
|
Printf(" Features:");
|
|
if (cpu->bMMX) Printf(" MMX");
|
|
if (cpu->bMMXPlus) Printf(" MMX+");
|
|
if (cpu->bSSE) Printf(" SSE");
|
|
if (cpu->bSSE2) Printf(" SSE2");
|
|
if (cpu->bSSE3) Printf(" SSE3");
|
|
if (cpu->bSSSE3) Printf(" SSSE3");
|
|
if (cpu->bSSE41) Printf(" SSE4.1");
|
|
if (cpu->bSSE42) Printf(" SSE4.2");
|
|
if (cpu->b3DNow) Printf(" 3DNow!");
|
|
if (cpu->b3DNowPlus) Printf(" 3DNow!+");
|
|
Printf ("\n");
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
// Compiler output for this function is crap compared to the assembly
|
|
// version, which is why it isn't used.
|
|
void DoBlending_MMX2(const PalEntry *from, PalEntry *to, int count, int r, int g, int b, int a)
|
|
{
|
|
__m64 blendcolor;
|
|
__m64 blendalpha;
|
|
__m64 zero;
|
|
__m64 blending256;
|
|
__m64 color1;
|
|
__m64 color2;
|
|
|
|
zero = _mm_setzero_si64();
|
|
#ifndef __GNUC__
|
|
blending256.m64_i64 = 0x10001000100;
|
|
#else
|
|
blending256 = (__m64)0x10001000100ll;
|
|
#endif
|
|
|
|
blendcolor = _mm_unpacklo_pi8(_m_from_int((r << 16) | (g << 8) | b), zero); // 000000RR 00GG00BB
|
|
blendalpha = _mm_unpacklo_pi8(_m_from_int((a << 16) | (a << 8) | a), zero); // 000000AA 00AA00AA
|
|
|
|
blendcolor = _mm_mullo_pi16(blendcolor, blendalpha); // premultiply blend by alpha
|
|
blendalpha = _mm_subs_pu16(blending256, blendalpha); // one minus alpha
|
|
|
|
// Do two colors per iteration: Count must be even
|
|
for (count >>= 1; count > 0; --count)
|
|
{
|
|
color1 = *(__m64 *)from; // 00r2g2b2 00r1g1b1
|
|
from += 2;
|
|
color2 = _mm_unpackhi_pi8(color1, zero); // 000000r2 00g200b2
|
|
color1 = _mm_unpacklo_pi8(color1, zero); // 000000r1 00g100b1
|
|
color1 = _mm_mullo_pi16(blendalpha, color1); // 0000r1rr g1ggb1bb
|
|
color2 = _mm_mullo_pi16(blendalpha, color2); // 0000r2rr g2ggb2bb
|
|
color1 = _mm_adds_pu16(blendcolor, color1);
|
|
color2 = _mm_adds_pu16(blendcolor, color2);
|
|
color1 = _mm_srli_pi16(color1, 8);
|
|
color2 = _mm_srli_pi16(color2, 8);
|
|
*(__m64 *)to = _mm_packs_pu16(color1, color2); // 00r2g2b2 00r1g1b1
|
|
to += 2;
|
|
}
|
|
_mm_empty();
|
|
}
|
|
#endif
|
|
|
|
#ifdef X86_ASM
|
|
extern "C" void STACK_ARGS DoBlending_MMX(const PalEntry *from, PalEntry *to, int count, int r, int g, int b, int a);
|
|
#endif
|
|
|
|
void DoBlending_SSE2(const PalEntry *from, PalEntry *to, int count, int r, int g, int b, int a)
|
|
{
|
|
__m128i blendcolor;
|
|
__m128i blendalpha;
|
|
__m128i zero;
|
|
__m128i blending256;
|
|
__m128i color1;
|
|
__m128i color2;
|
|
size_t unaligned;
|
|
|
|
unaligned = ((size_t)from | (size_t)to) & 0xF;
|
|
|
|
#ifdef X86_ASM
|
|
// For unaligned accesses, the assembly MMX version is slightly faster.
|
|
// Note that using unaligned SSE loads and stores is still faster than
|
|
// the compiler-generated MMX version.
|
|
if (unaligned)
|
|
{
|
|
DoBlending_MMX(from, to, count, r, g, b, a);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
#if defined(__amd64__) || defined(_M_X64)
|
|
long long color;
|
|
|
|
blending256 = _mm_set_epi64x(0x10001000100ll, 0x10001000100ll);
|
|
|
|
color = ((long long)r << 32) | (g << 16) | b;
|
|
blendcolor = _mm_set_epi64x(color, color);
|
|
|
|
color = ((long long)a << 32) | (a << 16) | a;
|
|
blendalpha = _mm_set_epi64x(color, color);
|
|
#else
|
|
int color;
|
|
|
|
blending256 = _mm_set_epi32(0x100, 0x1000100, 0x100, 0x1000100);
|
|
|
|
color = (g << 16) | b;
|
|
blendcolor = _mm_set_epi32(r, color, r, color);
|
|
|
|
color = (a << 16) | a;
|
|
blendalpha = _mm_set_epi32(a, color, a, color);
|
|
#endif
|
|
|
|
blendcolor = _mm_mullo_epi16(blendcolor, blendalpha); // premultiply blend by alpha
|
|
blendalpha = _mm_subs_epu16(blending256, blendalpha); // one minus alpha
|
|
|
|
zero = _mm_setzero_si128();
|
|
|
|
#ifndef X86_ASM
|
|
if (unaligned)
|
|
{
|
|
for (count >>= 2; count > 0; --count)
|
|
{
|
|
color1 = _mm_loadu_si128((__m128i *)from);
|
|
from += 4;
|
|
color2 = _mm_unpackhi_epi8(color1, zero);
|
|
color1 = _mm_unpacklo_epi8(color1, zero);
|
|
color1 = _mm_mullo_epi16(blendalpha, color1);
|
|
color2 = _mm_mullo_epi16(blendalpha, color2);
|
|
color1 = _mm_adds_epu16(blendcolor, color1);
|
|
color2 = _mm_adds_epu16(blendcolor, color2);
|
|
color1 = _mm_srli_epi16(color1, 8);
|
|
color2 = _mm_srli_epi16(color2, 8);
|
|
_mm_storeu_si128((__m128i *)to, _mm_packus_epi16(color1, color2));
|
|
to += 4;
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
for (count >>= 2; count > 0; --count)
|
|
{
|
|
color1 = _mm_load_si128((__m128i *)from);
|
|
from += 4;
|
|
color2 = _mm_unpackhi_epi8(color1, zero);
|
|
color1 = _mm_unpacklo_epi8(color1, zero);
|
|
color1 = _mm_mullo_epi16(blendalpha, color1);
|
|
color2 = _mm_mullo_epi16(blendalpha, color2);
|
|
color1 = _mm_adds_epu16(blendcolor, color1);
|
|
color2 = _mm_adds_epu16(blendcolor, color2);
|
|
color1 = _mm_srli_epi16(color1, 8);
|
|
color2 = _mm_srli_epi16(color2, 8);
|
|
_mm_store_si128((__m128i *)to, _mm_packus_epi16(color1, color2));
|
|
to += 4;
|
|
}
|
|
}
|
|
}
|
|
#endif
|