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gpu-fix bug leftover from r4073/r4227 which caused some games (AC:WW) to fail to clear their backdrops depending on BLDCNT configurations (fixes #3518648)

This commit is contained in:
zeromus 2012-04-17 18:37:46 +00:00
parent d5003c4db6
commit a775c75a69
1 changed files with 5 additions and 2 deletions
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7
desmume/src/GPU.cpp
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@ -2038,8 +2038,9 @@ static void GPU_RenderLine_layer(NDS_Screen * screen, u16 l)
switch(gpu->setFinalColorBck_funcNum)
{
//for backdrops, blend isnt applied (it's illogical, isnt it?)
case 0:
case 1:
case 0:
case 1:
PLAIN_CLEAR:
memset_u16_le<256>(gpu->currDst,backdrop_color);
break;
@ -2047,10 +2048,12 @@ static void GPU_RenderLine_layer(NDS_Screen * screen, u16 l)
case 2:
if(gpu->BLDCNT & 0x20) //backdrop is selected for color effect
memset_u16_le<256>(gpu->currDst,gpu->currentFadeInColors[backdrop_color]);
else goto PLAIN_CLEAR;
break;
case 3:
if(gpu->BLDCNT & 0x20) //backdrop is selected for color effect
memset_u16_le<256>(gpu->currDst,gpu->currentFadeOutColors[backdrop_color]);
else goto PLAIN_CLEAR;
break;
//windowed cases apparently need special treatment? why? can we not render the backdrop? how would that even work?