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[BotW] Fix FPS++ hot-reloading of FPS targets

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Crementif 2021-01-13 02:01:57 +01:00
parent e1c39a5a2d
commit ad867f827e
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2 changed files with 14 additions and 51 deletions
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43
src/BreathOfTheWild/Mods/FPS++/patch_FenceMethod.asm
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@ -34,45 +34,4 @@ blr ; Return to the instruction that jumped to this part to the code cave
0x31FAAE8 = bla _conditionalPerformanceFence ; Jumps to the conditional performance part of the code cave that creates the performance fence skip if that preset has been chosen.
0x31FAAF8 = bla _conditionalAccurateAndSkipFence ; Jumps to the conditional accurate part of the code cave that creates the accurate fence skip if that preset has been chosen.
0x31FAAFC = beq .+0x08 ; This part is the crucial part of the fence skip method. It skips the GX2SetGPUFence call in which case there's no fence skip, if the conditional register that has previously been set by the accurate code cave was true.
[BotW_FenceMethod_V176V192]
moduleMatches = 0xFD091F9F, 0xD472D8A5
# Code Cave
codeCaveSize = 0x50
# Fence Method Value
_fenceMethod = 0x0000000
0x0000000 = .int $fenceMethod
# Performance Fence method
_conditionalPerformanceFence = 0x0000004
0x0000004 = lis r11, _fenceMethod@ha
0x0000008 = lwz r11, _fenceMethod@l(r11)
0x000000C = cmpwi r11, 1
0x0000010 = bne .+0x0C
0x0000014 = li r0, 1
0x0000018 = blr
0x000001C = lwz r0, 0x388(r31)
0x0000020 = blr
# Accurate and Skip Fence methods
_conditionalAccurateAndSkipFence = 0x0000024
0x0000024 = lis r5, _fenceMethod@ha
0x0000028 = lwz r11, _fenceMethod@l(r5)
0x000002C = cmpwi r11, 2
0x0000030 = li r5, 6
0x0000034 = add r6, r12, r0
0x0000038 = bne .+0x10
0x000003C = cmpwi r6, 500
0x0000040 = blt .+0x08
0x0000044 = subi r6, r6, 1
0x0000048 = cmpwi r11, 3
0x000004C = blr
0x31F9FEC = bla _conditionalPerformanceFence
0x31F9FFC = bla _conditionalAccurateAndSkipFence
0x31FA000 = beq .+0x08
0x31FAAFC = beq .+0x08 ; This part is the crucial part of the fence skip method. It skips the GX2SetGPUFence call in which case there's no fence skip, if the conditional register that has previously been set by the accurate code cave was true.

22
src/BreathOfTheWild/Mods/FPS++/patch_GameSpeed.asm
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@ -47,18 +47,21 @@ averageFPS1Inv:
averageSum:
.float $fpsLimit*$frameAverageAmount
initBuffer:
.byte 0
bufferStart:
.ptr 0xDC
.ptr 0xD8
bufferCurrEntry:
.ptr 0xDC
.ptr 0xD8
bufferEnd:
.ptr 0xDC+(4*$frameAverageAmount)
.ptr 0xD8+(4*$frameAverageAmount)
; Useful for trying potential FPS values. Need to set debugMode = 1 to enable the debugging in the interface and code.
debugAddr:
.ptr 0x1040CE78
.ptr 0x00000000
debugMultiplier:
.float $debugMultiplier
@ -95,11 +98,14 @@ lis r12, busSpeed@ha ; Load wii u bus speed...
lfs f12, busSpeed@l(r12) ; ...into f12
fmuls f10, f12, f10 ; Multiply bus speed to have current fps in f10. (1/ticks)*bus speed
; Initialize the circular buffer with default values
; Initialize the circular buffer with default values whenever a setting gets changed
_initializeAverageBuffer:
lwz r11, 0xD8(r30) ; Check whether/what the current buffer settings are
cmpwi r11, $frameAverageAmount ; Compare the previously $frameAverageAmount with the current $frameAverageAmount
lis r12, initBuffer@ha ; Load the initBuffer variable to see whether the buffer has to be initialized/reset again
lbz r11, initBuffer@l(r12) ; ...to check whether/what the current buffer settings are
cmpwi r11, 1 ; Compare the previously $frameAverageAmount with the current $frameAverageAmount
beq _calcAverageFPS ; Continue to calulating the average FPS if the previous settings are the same as the permanently set settings
li r11, 1 ; Load "1" into r11
stb r11, initBuffer@l(r12) ; Store that 1 into the initBuffer so that it will only initialize this once
lis r12, fpsLimit@ha ; Load current FPS limit...
lfs f10, fpsLimit@l(r12) ; ...into f10
lis r12, bufferStart@ha ; Load offset to the start of the averaging buffer...
@ -111,8 +117,6 @@ stfs f10, 0x0(r11) ; Store f10 to the address in r12 + 0x04 using this specif
addi r12, r12, 0x04 ; Add 0x04 to the buffer offset to make the next entry offset
cmpw r12, r3 ; Compare the current address offset in r12 with the address offset in r3
ble .-0x10 ; Loop back until the whole buffer is initialized with the value from f12
li r11, $frameAverageAmount ; Load current $frameAverageAmount again...
stw r11, 0xD8(r30) ; ...to store that value again in the permanent (doesn't change after reloading) memory
; Calculate the rolling average FPS over the last N amount of frames which are stored in the circular buffer
_calcAverageFPS: