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Take out template mess in vdc.cpp - optimize for 16bpp

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This commit is contained in:
twinaphex 2014-06-20 23:30:00 +02:00
parent 44e2cfe37d
commit b45930b80e
1 changed files with 8 additions and 161 deletions
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169
mednafen/pce_fast/vdc.cpp
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@ -870,10 +870,9 @@ static void DrawSprites(vdc_t *vdc, const int32 end, uint16 *spr_linebuf)
} }
} }
void (*MixBGSPR)(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint32 *target) = NULL; void (*MixBGSPR)(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint16_t *target) = NULL;
template<typename T> void MixBGSPR_Generic(const uint32 count_in, const uint8 *bg_linebuf_in, const uint16 *spr_linebuf_in, uint16_t *target_in)
void MixBGSPR_Generic(const uint32 count_in, const uint8 *bg_linebuf_in, const uint16 *spr_linebuf_in, T *target_in)
{ {
for(unsigned int x = 0; x < count_in; x++) for(unsigned int x = 0; x < count_in; x++)
{ {
@ -888,162 +887,19 @@ void MixBGSPR_Generic(const uint32 count_in, const uint8 *bg_linebuf_in, const u
} }
} }
#ifdef ARCH_X86 void MixBGOnly(const uint32 count, const uint8 *bg_linebuf, uint16_t *target)
#ifdef __x86_64__
void MixBGSPR_x86(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint32 *target)
{
// rdx: bg_linebuf
// rsi: spr_linebuf
// rbp: vce.color_table_cache
// rdi: target
// rcx: count
// eax: bg pixel
// ebx: spr pixel
int dummy;
asm volatile(
"push %%rbx\n\t"
"movq %%rax, %%rbp\n\t"
"negq %%rcx\n\t"
"xorq %%rax, %%rax\n\t"
"xorq %%rbx, %%rbx\n\t"
"BoomBuggy:\n\t"
"movzbl (%%rdx, %%rcx, 1), %%eax\n\t"
"movswl (%%rsi, %%rcx, 2), %%ebx\n\t"
"testl $15, %%eax\n\t"
"bt $15, %%ebx\n\t"
"cmovbe %%ebx, %%eax\n\t"
"andl $511, %%eax\n\t"
"movl (%%rbp, %%rax, 4), %%ebx\n\t"
"movl %%ebx, (%%rdi, %%rcx, 4)\n\t"
"addq $1, %%rcx\n\t"
"jnz BoomBuggy\n\t"
"pop %%rbx\n\t"
: "=c" (dummy), "=a" (dummy)
: "d" (bg_linebuf + count), "S" (spr_linebuf + count), "D" (target + count), "c" (count), "a" (vce.color_table_cache)
: "memory", "cc", "rbp"
);
}
#else // else to __x86_64__
void MixBGSPR_x86(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint32 *target)
{
// edx: bg_linebuf
// esi: spr_linebuf
// ebp: vce.color_table_cache
// edi: target
// ecx: count
// eax: bg pixel
// ebx: spr pixel
int dummy;
asm volatile(
"push %%ebx\n\t"
"movl %%eax, %%ebp\n\t"
"negl %%ecx\n\t"
"xorl %%eax, %%eax\n\t"
"xorl %%ebx, %%ebx\n\t"
"BoomBuggy:\n\t"
"movzbl (%%edx, %%ecx, 1), %%eax\n\t"
"movswl (%%esi, %%ecx, 2), %%ebx\n\t"
"testl $15, %%eax\n\t"
"bt $15, %%ebx\n\t"
"jnbe SkipMove\n\t"
"movl %%ebx, %%eax\n\t"
"andl $511, %%eax\n\t"
"SkipMove:\n\t"
"movl (%%ebp, %%eax, 4), %%ebx\n\t"
"movl %%ebx, (%%edi, %%ecx, 4)\n\t"
"addl $1, %%ecx\n\t"
"jnz BoomBuggy\n\t"
"pop %%ebx\n\t"
: "=c" (dummy), "=a" (dummy)
: "d" (bg_linebuf + count), "S" (spr_linebuf + count), "D" (target + count), "c" (count), "a" (vce.color_table_cache)
: "memory", "cc", "ebp"
);
}
void MixBGSPR_x86_CMOV(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint32 *target)
{
// edx: bg_linebuf
// esi: spr_linebuf
// ebp: vce.color_table_cache
// edi: target
// ecx: count
// eax: bg pixel
// ebx: spr pixel
int dummy;
asm volatile(
"push %%ebx\n\t"
"movl %%eax, %%ebp\n\t"
"negl %%ecx\n\t"
"xorl %%eax, %%eax\n\t"
"xorl %%ebx, %%ebx\n\t"
"BoomBuggyCMOV:\n\t"
"movzbl (%%edx, %%ecx, 1), %%eax\n\t"
"movswl (%%esi, %%ecx, 2), %%ebx\n\t"
"testl $15, %%eax\n\t"
"bt $15, %%ebx\n\t"
"cmovbe %%ebx, %%eax\n\t"
"andl $511, %%eax\n\t"
"movl (%%ebp, %%eax, 4), %%ebx\n\t"
"movl %%ebx, (%%edi, %%ecx, 4)\n\t"
"addl $1, %%ecx\n\t"
"jnz BoomBuggyCMOV\n\t"
"pop %%ebx\n\t"
: "=c" (dummy), "=a" (dummy)
: "d" (bg_linebuf + count), "S" (spr_linebuf + count), "D" (target + count), "c" (count), "a" (vce.color_table_cache)
: "memory", "cc", "ebp"
);
}
#endif
#endif // ARCH_X86
template<typename T>
void MixBGOnly(const uint32 count, const uint8 *bg_linebuf, T *target)
{ {
for(unsigned int x = 0; x < count; x++) for(unsigned int x = 0; x < count; x++)
target[x] = vce.color_table_cache[bg_linebuf[x]]; target[x] = vce.color_table_cache[bg_linebuf[x]];
} }
template<typename T> void MixSPROnly(const uint32 count, const uint16 *spr_linebuf, uint16_t *target)
void MixSPROnly(const uint32 count, const uint16 *spr_linebuf, T *target)
{ {
for(unsigned int x = 0; x < count; x++) for(unsigned int x = 0; x < count; x++)
target[x] = vce.color_table_cache[(spr_linebuf[x] | 0x100) & 0x1FF]; target[x] = vce.color_table_cache[(spr_linebuf[x] | 0x100) & 0x1FF];
} }
template<typename T> void MixNone(const uint32 count, uint16_t *target)
void MixNone(const uint32 count, T *target)
{ {
uint32 bg_color = vce.color_table_cache[0x000]; uint32 bg_color = vce.color_table_cache[0x000];
@ -1051,10 +907,7 @@ void MixNone(const uint32 count, T *target)
target[x] = bg_color; target[x] = bg_color;
} }
//static void MixVPC(const uint32 count, const uint32 *lb0, const uint32 *lb1, uint32 *target) NO_INLINE; static void MixVPC(const uint32 count, const uint32 *lb0, const uint32 *lb1, uint16_t *target)
template<typename T>
static void MixVPC(const uint32 count, const uint32 *lb0, const uint32 *lb1, T *target)
{ {
static const int prio_select[4] = { 1, 1, 0, 0 }; static const int prio_select[4] = { 1, 1, 0, 0 };
static const int prio_shift[4] = { 4, 0, 4, 0 }; static const int prio_shift[4] = { 4, 0, 4, 0 };
@ -1094,8 +947,7 @@ static void MixVPC(const uint32 count, const uint32 *lb0, const uint32 *lb1, T *
} }
} }
template<typename T> void DrawOverscan(const vdc_t *vdc, uint16_t *target, const MDFN_Rect *lw, const bool full = true, const int32 vpl = 0, const int32 vpr = 0)
void DrawOverscan(const vdc_t *vdc, T *target, const MDFN_Rect *lw, const bool full = true, const int32 vpl = 0, const int32 vpr = 0)
{ {
uint32 os_color = vce.color_table_cache[0x100]; uint32 os_color = vce.color_table_cache[0x100];
@ -1544,12 +1396,7 @@ void VDC_Init(int sgx)
LoadCustomPalette(MDFN_MakeFName(MDFNMKF_PALETTE, 0, NULL).c_str()); LoadCustomPalette(MDFN_MakeFName(MDFNMKF_PALETTE, 0, NULL).c_str());
MixBGSPR = MixBGSPR_Generic<uint32>; MixBGSPR = MixBGSPR_Generic;
#ifdef ARCH_X86
MixBGSPR = MixBGSPR_x86;
#endif
} }
void VDC_Close(void) void VDC_Close(void)