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authorArisotura <thetotalworm@gmail.com>2022-04-01 12:54:47 +0200
committerArisotura <thetotalworm@gmail.com>2022-04-01 12:54:47 +0200
commitd296f2832c9de6d50c37d6ec094a64cf2c0de31d (patch)
tree2f22828db006e1de7704bd6d783f60577f26e8bf /src
parent5ca8728cbf33fbb221bf01a76928a51f8aa95fc2 (diff)
make display-capture blending accurate to hardware
Diffstat (limited to 'src')
-rw-r--r--src/GPU2D_Soft.cpp14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/GPU2D_Soft.cpp b/src/GPU2D_Soft.cpp
index 7b6cda9..04c4576 100644
--- a/src/GPU2D_Soft.cpp
+++ b/src/GPU2D_Soft.cpp
@@ -561,9 +561,9 @@ void SoftRenderer::DoCapture(u32 line, u32 width)
u32 bB = (val >> 10) & 0x1F;
u32 aB = val >> 15;
- u32 rD = ((rA * aA * eva) + (rB * aB * evb)) >> 4;
- u32 gD = ((gA * aA * eva) + (gB * aB * evb)) >> 4;
- u32 bD = ((bA * aA * eva) + (bB * aB * evb)) >> 4;
+ u32 rD = ((rA * aA * eva) + (rB * aB * evb) + 8) >> 4;
+ u32 gD = ((gA * aA * eva) + (gB * aB * evb) + 8) >> 4;
+ u32 bD = ((bA * aA * eva) + (bB * aB * evb) + 8) >> 4;
u32 aD = (eva>0 ? aA : 0) | (evb>0 ? aB : 0);
if (rD > 0x1F) rD = 0x1F;
@@ -588,9 +588,9 @@ void SoftRenderer::DoCapture(u32 line, u32 width)
u32 bA = (val >> 17) & 0x1F;
u32 aA = ((val >> 24) != 0) ? 1 : 0;
- u32 rD = (rA * aA * eva) >> 4;
- u32 gD = (gA * aA * eva) >> 4;
- u32 bD = (bA * aA * eva) >> 4;
+ u32 rD = ((rA * aA * eva) + 8) >> 4;
+ u32 gD = ((gA * aA * eva) + 8) >> 4;
+ u32 bD = ((bA * aA * eva) + 8) >> 4;
u32 aD = (eva>0 ? aA : 0);
dst[dstaddr] = rD | (gD << 5) | (bD << 10) | (aD << 15);
@@ -2258,4 +2258,4 @@ void SoftRenderer::DrawSprite_Normal(u32 num, u32 width, u32 height, s32 xpos, s
}
}
-} \ No newline at end of file
+}