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Optimize line draw for vertical/horizontal lines

This commit is contained in:
drmortalwombat 2024-08-02 19:56:38 +02:00
parent 65b9c58504
commit 2ba46283b2
3 changed files with 83 additions and 53 deletions
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122
include/gfx/bitmap.c
View File

@ -579,59 +579,82 @@ static inline void buildline(char ly, char lx, int dx, int dy, int stride, bool
break;
}
// m >= 0
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP + delta16);
ip += asm_rl(BLIT_CODE + ip, ASM_BMI, delta16 ? 5 + 15 + 13 + 2 : 5 + 15 + 7 + 2);
ip += asm_np(BLIT_CODE + ip, up ? ASM_DEY : ASM_INY);
ip += asm_im(BLIT_CODE + ip, ASM_CPY, up ? 0xff : 0x08);
ip += asm_rl(BLIT_CODE + ip, ASM_BNE, 15);
ip += asm_np(BLIT_CODE + ip, ASM_CLC);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_SP);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, stride & 0xff);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_SP);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_SP + 1);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, stride >> 8);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_SP + 1);
ip += asm_im(BLIT_CODE + ip, ASM_LDY, up ? 0x07 : 0x00);
ip += asm_np(BLIT_CODE + ip, ASM_SEC);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP);
ip += asm_im(BLIT_CODE + ip, ASM_SBC, dx & 0xff);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_DP);
if (delta16)
if (dx && dy)
{
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP + 1);
ip += asm_im(BLIT_CODE + ip, ASM_SBC, dx >> 8);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_DP + 1);
// m >= 0
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP + delta16);
ip += asm_rl(BLIT_CODE + ip, ASM_BMI, delta16 ? 5 + 15 + 13 + 2 : 5 + 15 + 7 + 2);
}
// m < 0
ip += asm_rl(BLIT_CODE + ip, ASM_BPL, delta16 ? 4 + 15 + 13 : 4 + 15 + 7);
ip += asm_zp(BLIT_CODE + ip, left ? ASM_ASL : ASM_LSR, REG_D0);
ip += asm_rl(BLIT_CODE + ip, ASM_BCC, 15);
ip += asm_zp(BLIT_CODE + ip, left ? ASM_ROL : ASM_ROR, REG_D0);
ip += asm_np(BLIT_CODE + ip, ASM_CLC);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_SP);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, left ? 0xf8 : 0x08);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_SP);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_SP + 1);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, left ? 0xff : 0x00);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_SP + 1);
ip += asm_np(BLIT_CODE + ip, ASM_CLC);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, dy & 0xff);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_DP);
if (delta16)
if (dy)
{
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP + 1);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, dy >> 8);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_DP + 1);
ip += asm_np(BLIT_CODE + ip, up ? ASM_DEY : ASM_INY);
ip += asm_im(BLIT_CODE + ip, ASM_CPY, up ? 0xff : 0x08);
ip += asm_rl(BLIT_CODE + ip, ASM_BNE, 15);
ip += asm_np(BLIT_CODE + ip, ASM_CLC);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_SP);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, stride & 0xff);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_SP);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_SP + 1);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, stride >> 8);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_SP + 1);
ip += asm_im(BLIT_CODE + ip, ASM_LDY, up ? 0x07 : 0x00);
}
if (dx && dy)
{
ip += asm_np(BLIT_CODE + ip, ASM_SEC);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP);
ip += asm_im(BLIT_CODE + ip, ASM_SBC, dx & 0xff);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_DP);
if (delta16)
{
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP + 1);
ip += asm_im(BLIT_CODE + ip, ASM_SBC, dx >> 8);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_DP + 1);
}
// m < 0
ip += asm_rl(BLIT_CODE + ip, ASM_BPL, delta16 ? 4 + 13 + 13 : 4 + 13 + 7);
}
if (dx)
{
ip += asm_zp(BLIT_CODE + ip, left ? ASM_ASL : ASM_LSR, REG_D0);
ip += asm_rl(BLIT_CODE + ip, ASM_BCC, 13);
ip += asm_zp(BLIT_CODE + ip, left ? ASM_ROL : ASM_ROR, REG_D0);
ip += asm_np(BLIT_CODE + ip, ASM_CLC);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_SP);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, left ? 0xf8 : 0x08);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_SP);
if (left)
{
ip += asm_rl(BLIT_CODE + ip, ASM_BCS, 2);
ip += asm_zp(BLIT_CODE + ip, ASM_DEC, REG_SP + 1);
}
else
{
ip += asm_rl(BLIT_CODE + ip, ASM_BCC, 2);
ip += asm_zp(BLIT_CODE + ip, ASM_INC, REG_SP + 1);
}
}
if (dx && dy)
{
ip += asm_np(BLIT_CODE + ip, ASM_CLC);
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, dy & 0xff);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_DP);
if (delta16)
{
ip += asm_zp(BLIT_CODE + ip, ASM_LDA, REG_DP + 1);
ip += asm_im(BLIT_CODE + ip, ASM_ADC, dy >> 8);
ip += asm_zp(BLIT_CODE + ip, ASM_STA, REG_DP + 1);
}
}
// l --
@ -649,6 +672,7 @@ static inline void callline(byte * dst, byte bit, int m, char lh, char pattern)
{
__asm
{
lda dst
sta REG_SP
lda dst + 1

6
oscar64/GlobalAnalyzer.cpp
View File

@ -671,7 +671,10 @@ void GlobalAnalyzer::AnalyzeAssembler(Expression* exp, Declaration* procDec)
else if (adec->mType == DT_VARIABLE_REF)
{
if (adec->mBase->mFlags & DTF_GLOBAL)
{
AnalyzeGlobalVariable(adec->mBase);
adec->mBase->mFlags |= DTF_VAR_ALIASING;
}
}
else if (adec->mType == DT_LABEL)
{
@ -680,7 +683,10 @@ void GlobalAnalyzer::AnalyzeAssembler(Expression* exp, Declaration* procDec)
else if (adec->mType == DT_VARIABLE)
{
if (adec->mFlags & DTF_GLOBAL)
{
AnalyzeGlobalVariable(adec);
adec->mFlags |= DTF_VAR_ALIASING;
}
}
else if (adec->mType == DT_FUNCTION_REF)
{

8
oscar64/InterCode.cpp
View File

@ -3880,7 +3880,7 @@ void InterInstruction::FilterStaticVarsByteUsage(const GrowingVariableArray& sta
}
}
}
else if (mCode == IC_COPY || mCode == IC_CALL || mCode == IC_CALL_NATIVE || mCode == IC_RETURN || mCode == IC_RETURN_STRUCT || mCode == IC_RETURN_VALUE || mCode == IC_STRCPY || mCode == IC_DISPATCH || mCode == IC_FILL)
else if (mCode == IC_COPY || mCode == IC_CALL || mCode == IC_CALL_NATIVE || mCode == IC_ASSEMBLER || mCode == IC_RETURN || mCode == IC_RETURN_STRUCT || mCode == IC_RETURN_VALUE || mCode == IC_STRCPY || mCode == IC_DISPATCH || mCode == IC_FILL)
{
requiredVars.OrNot(providedVars);
}
@ -4539,7 +4539,7 @@ bool InterInstruction::RemoveUnusedStaticStoreInstructions(InterCodeBasicBlock*
requiredVars.Fill();
storeIns.SetSize(0);
}
else if (mCode == IC_CALL || mCode == IC_CALL_NATIVE || mCode == IC_RETURN || mCode == IC_RETURN_STRUCT || mCode == IC_RETURN_VALUE || mCode == IC_DISPATCH)
else if (mCode == IC_CALL || mCode == IC_CALL_NATIVE || mCode == IC_ASSEMBLER || mCode == IC_RETURN || mCode == IC_RETURN_STRUCT || mCode == IC_RETURN_VALUE || mCode == IC_DISPATCH)
{
requiredVars.Fill();
storeIns.SetSize(0);
@ -4605,7 +4605,7 @@ bool InterInstruction::RemoveUnusedStaticStoreByteInstructions(InterCodeBasicBlo
{
requiredVars.Fill();
}
else if (mCode == IC_CALL || mCode == IC_CALL_NATIVE || mCode == IC_RETURN || mCode == IC_RETURN_STRUCT || mCode == IC_RETURN_VALUE || mCode == IC_DISPATCH)
else if (mCode == IC_CALL || mCode == IC_CALL_NATIVE || mCode == IC_ASSEMBLER || mCode == IC_RETURN || mCode == IC_RETURN_STRUCT || mCode == IC_RETURN_VALUE || mCode == IC_DISPATCH)
{
requiredVars.Fill();
}
@ -21761,7 +21761,7 @@ void InterCodeProcedure::Close(void)
{
GrowingTypeArray tstack(IT_NONE);
CheckFunc = !strcmp(mIdent->mString, "main");
CheckFunc = !strcmp(mIdent->mString, "draw");
CheckCase = false;
mEntryBlock = mBlocks[0];