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lr: fix incorrect DC framebuffer size

This commit is contained in:
Flyinghead 2023-01-03 11:03:31 +01:00
parent dd66e44871
commit 12bba31270
1 changed files with 19 additions and 6 deletions
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25
core/rend/transform_matrix.h
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@ -293,24 +293,37 @@ inline static float getOutputFramebufferAspectRatio()
return aspectRatio * config::ScreenStretching / 100.f;
}
inline static void getDCFramebufferReadSize(int& width, int& height)
inline static void getDCFramebufferReadSize(const FramebufferInfo& info, int& width, int& height)
{
width = FB_R_SIZE.fb_x_size + 1; // in 32-bit words
height = FB_R_SIZE.fb_y_size + 1;
width = (info.fb_r_size.fb_x_size + 1) * 2; // in 16-bit words
height = info.fb_r_size.fb_y_size + 1;
int modulus = (info.fb_r_size.fb_modulus - 1) * 2;
switch (FB_R_CTRL.fb_depth)
int bpp;
switch (info.fb_r_ctrl.fb_depth)
{
case fbde_0555:
case fbde_565:
width *= 2;
bpp = 2;
break;
case fbde_888:
width = width * 4 / 3;
bpp = 3;
width = (width * 2) / 3; // in pixels
modulus = (modulus * 2) / 3; // in pixels
break;
case fbde_C888:
bpp = 4;
width /= 2; // in pixels
modulus /= 2; // in pixels
break;
default:
bpp = 2;
break;
}
if (info.spg_control.interlace && width == modulus && info.fb_r_sof2 == info.fb_r_sof1 + width * bpp)
// Typical case alternating even and odd lines -> take the whole buffer at once
height *= 2;
}
inline static float getDCFramebufferAspectRatio()