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https://github.com/libretro/beetle-pce-fast-libretro.git
synced 2024-11-23 07:50:03 +00:00
Take out template mess in vdc.cpp - optimize for 16bpp
This commit is contained in:
twinaphex
parent
44e2cfe37d
commit
b45930b80e
@ -870,10 +870,9 @@ static void DrawSprites(vdc_t *vdc, const int32 end, uint16 *spr_linebuf)
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}
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}
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void (*MixBGSPR)(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint32 *target) = NULL;
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void (*MixBGSPR)(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint16_t *target) = NULL;
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template<typename T>
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void MixBGSPR_Generic(const uint32 count_in, const uint8 *bg_linebuf_in, const uint16 *spr_linebuf_in, T *target_in)
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void MixBGSPR_Generic(const uint32 count_in, const uint8 *bg_linebuf_in, const uint16 *spr_linebuf_in, uint16_t *target_in)
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{
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for(unsigned int x = 0; x < count_in; x++)
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{
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@ -888,162 +887,19 @@ void MixBGSPR_Generic(const uint32 count_in, const uint8 *bg_linebuf_in, const u
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}
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}
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#ifdef ARCH_X86
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#ifdef __x86_64__
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void MixBGSPR_x86(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint32 *target)
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{
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// rdx: bg_linebuf
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// rsi: spr_linebuf
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// rbp: vce.color_table_cache
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// rdi: target
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// rcx: count
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// eax: bg pixel
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// ebx: spr pixel
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int dummy;
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asm volatile(
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"push %%rbx\n\t"
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"movq %%rax, %%rbp\n\t"
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"negq %%rcx\n\t"
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"xorq %%rax, %%rax\n\t"
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"xorq %%rbx, %%rbx\n\t"
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"BoomBuggy:\n\t"
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"movzbl (%%rdx, %%rcx, 1), %%eax\n\t"
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"movswl (%%rsi, %%rcx, 2), %%ebx\n\t"
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"testl $15, %%eax\n\t"
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"bt $15, %%ebx\n\t"
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"cmovbe %%ebx, %%eax\n\t"
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"andl $511, %%eax\n\t"
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"movl (%%rbp, %%rax, 4), %%ebx\n\t"
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"movl %%ebx, (%%rdi, %%rcx, 4)\n\t"
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"addq $1, %%rcx\n\t"
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"jnz BoomBuggy\n\t"
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"pop %%rbx\n\t"
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: "=c" (dummy), "=a" (dummy)
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: "d" (bg_linebuf + count), "S" (spr_linebuf + count), "D" (target + count), "c" (count), "a" (vce.color_table_cache)
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: "memory", "cc", "rbp"
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);
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}
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#else // else to __x86_64__
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void MixBGSPR_x86(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint32 *target)
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{
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// edx: bg_linebuf
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// esi: spr_linebuf
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// ebp: vce.color_table_cache
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// edi: target
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// ecx: count
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// eax: bg pixel
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// ebx: spr pixel
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int dummy;
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asm volatile(
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"push %%ebx\n\t"
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"movl %%eax, %%ebp\n\t"
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"negl %%ecx\n\t"
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"xorl %%eax, %%eax\n\t"
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"xorl %%ebx, %%ebx\n\t"
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"BoomBuggy:\n\t"
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"movzbl (%%edx, %%ecx, 1), %%eax\n\t"
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"movswl (%%esi, %%ecx, 2), %%ebx\n\t"
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"testl $15, %%eax\n\t"
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"bt $15, %%ebx\n\t"
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"jnbe SkipMove\n\t"
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"movl %%ebx, %%eax\n\t"
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"andl $511, %%eax\n\t"
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"SkipMove:\n\t"
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"movl (%%ebp, %%eax, 4), %%ebx\n\t"
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"movl %%ebx, (%%edi, %%ecx, 4)\n\t"
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"addl $1, %%ecx\n\t"
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"jnz BoomBuggy\n\t"
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"pop %%ebx\n\t"
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: "=c" (dummy), "=a" (dummy)
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: "d" (bg_linebuf + count), "S" (spr_linebuf + count), "D" (target + count), "c" (count), "a" (vce.color_table_cache)
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: "memory", "cc", "ebp"
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);
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}
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void MixBGSPR_x86_CMOV(const uint32 count, const uint8 *bg_linebuf, const uint16 *spr_linebuf, uint32 *target)
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{
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// edx: bg_linebuf
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// esi: spr_linebuf
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// ebp: vce.color_table_cache
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// edi: target
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// ecx: count
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// eax: bg pixel
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// ebx: spr pixel
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int dummy;
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asm volatile(
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"push %%ebx\n\t"
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"movl %%eax, %%ebp\n\t"
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"negl %%ecx\n\t"
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"xorl %%eax, %%eax\n\t"
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"xorl %%ebx, %%ebx\n\t"
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"BoomBuggyCMOV:\n\t"
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"movzbl (%%edx, %%ecx, 1), %%eax\n\t"
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"movswl (%%esi, %%ecx, 2), %%ebx\n\t"
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"testl $15, %%eax\n\t"
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"bt $15, %%ebx\n\t"
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"cmovbe %%ebx, %%eax\n\t"
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"andl $511, %%eax\n\t"
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"movl (%%ebp, %%eax, 4), %%ebx\n\t"
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"movl %%ebx, (%%edi, %%ecx, 4)\n\t"
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"addl $1, %%ecx\n\t"
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"jnz BoomBuggyCMOV\n\t"
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"pop %%ebx\n\t"
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: "=c" (dummy), "=a" (dummy)
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: "d" (bg_linebuf + count), "S" (spr_linebuf + count), "D" (target + count), "c" (count), "a" (vce.color_table_cache)
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: "memory", "cc", "ebp"
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);
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}
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#endif
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#endif // ARCH_X86
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template<typename T>
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void MixBGOnly(const uint32 count, const uint8 *bg_linebuf, T *target)
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void MixBGOnly(const uint32 count, const uint8 *bg_linebuf, uint16_t *target)
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{
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for(unsigned int x = 0; x < count; x++)
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target[x] = vce.color_table_cache[bg_linebuf[x]];
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}
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template<typename T>
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void MixSPROnly(const uint32 count, const uint16 *spr_linebuf, T *target)
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void MixSPROnly(const uint32 count, const uint16 *spr_linebuf, uint16_t *target)
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{
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for(unsigned int x = 0; x < count; x++)
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target[x] = vce.color_table_cache[(spr_linebuf[x] | 0x100) & 0x1FF];
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}
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template<typename T>
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void MixNone(const uint32 count, T *target)
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void MixNone(const uint32 count, uint16_t *target)
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{
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uint32 bg_color = vce.color_table_cache[0x000];
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@ -1051,10 +907,7 @@ void MixNone(const uint32 count, T *target)
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target[x] = bg_color;
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}
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//static void MixVPC(const uint32 count, const uint32 *lb0, const uint32 *lb1, uint32 *target) NO_INLINE;
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template<typename T>
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static void MixVPC(const uint32 count, const uint32 *lb0, const uint32 *lb1, T *target)
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static void MixVPC(const uint32 count, const uint32 *lb0, const uint32 *lb1, uint16_t *target)
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{
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static const int prio_select[4] = { 1, 1, 0, 0 };
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static const int prio_shift[4] = { 4, 0, 4, 0 };
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@ -1094,8 +947,7 @@ static void MixVPC(const uint32 count, const uint32 *lb0, const uint32 *lb1, T *
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}
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}
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template<typename T>
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void DrawOverscan(const vdc_t *vdc, T *target, const MDFN_Rect *lw, const bool full = true, const int32 vpl = 0, const int32 vpr = 0)
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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)
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{
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uint32 os_color = vce.color_table_cache[0x100];
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@ -1544,12 +1396,7 @@ void VDC_Init(int sgx)
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LoadCustomPalette(MDFN_MakeFName(MDFNMKF_PALETTE, 0, NULL).c_str());
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MixBGSPR = MixBGSPR_Generic<uint32>;
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#ifdef ARCH_X86
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MixBGSPR = MixBGSPR_x86;
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#endif
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MixBGSPR = MixBGSPR_Generic;
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}
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void VDC_Close(void)
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