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authorGravatarGravatar MooglyGuy <therealmogminer@gmail.com>2019-11-05 22:19:19 +0100
committerGravatarGravatar MooglyGuy <therealmogminer@gmail.com>2019-11-05 22:19:33 +0100
commit78dc16aad69f7893eada205ab1c0e97382154661 (patch)
tree9aa616c7c19f355f83c4116533eefba398feb402 /src/emu
parentde541003e1a50baeaf40410065bd7415d587a5f8 (diff)
-screen: Only clear or allocate scan bitmaps in excess of the previous height. Fixes blank portions of smw2u, possibly others. [Ryan Holtz]
Diffstat (limited to 'src/emu')
-rw-r--r--src/emu/screen.cpp41
1 files changed, 30 insertions, 11 deletions
diff --git a/src/emu/screen.cpp b/src/emu/screen.cpp
index 45a4ad42107..6736626325a 100644
--- a/src/emu/screen.cpp
+++ b/src/emu/screen.cpp
@@ -637,18 +637,37 @@ void screen_device::allocate_scan_bitmaps()
{
const bool screen16 = !m_screen_update_ind16.isnull();
s32 effwidth = std::max(m_max_width, m_visarea.right() + 1);
+ const s32 old_height = (s32)m_scan_widths.size();
s32 effheight = std::max(m_height, m_visarea.bottom() + 1);
- for (int i = 0; i < effheight; i++)
+ if (old_height < effheight)
{
- for (int j = 0; j < 2; j++)
- {
- if (screen16)
- m_scan_bitmaps[j].push_back(new bitmap_ind16(effwidth, 1));
- else
- m_scan_bitmaps[j].push_back(new bitmap_rgb32(effwidth, 1));
- }
- m_scan_widths.push_back(m_width);
- }
+ for (int i = old_height; i < effheight; i++)
+ {
+ for (int j = 0; j < 2; j++)
+ {
+ if (screen16)
+ m_scan_bitmaps[j].push_back(new bitmap_ind16(effwidth, 1));
+ else
+ m_scan_bitmaps[j].push_back(new bitmap_rgb32(effwidth, 1));
+ }
+ m_scan_widths.push_back(m_width);
+ }
+ }
+ else
+ {
+ for (int i = effheight; i < old_height; i++)
+ {
+ for (int j = 0; j < 2; j++)
+ {
+ if (screen16)
+ delete (bitmap_ind16 *)m_scan_bitmaps[j][i];
+ else
+ delete (bitmap_rgb32 *)m_scan_bitmaps[j][i];
+ m_scan_bitmaps[j].erase(m_scan_bitmaps[j].begin() + i);
+ }
+ m_scan_widths.erase(m_scan_widths.begin() + i);
+ }
+ }
}
}
@@ -1003,6 +1022,7 @@ void screen_device::configure(int width, int height, const rectangle &visarea, a
// reallocate bitmap(s) if necessary
realloc_screen_bitmaps();
+ if (machine().input().code_pressed(KEYCODE_E)) printf("CONFIGURE\n");
// compute timing parameters
m_frame_period = frame_period;
@@ -1118,7 +1138,6 @@ void screen_device::realloc_screen_bitmaps()
m_texture[0]->set_bitmap(m_bitmap[0], m_visarea, m_bitmap[0].texformat());
m_texture[1]->set_bitmap(m_bitmap[1], m_visarea, m_bitmap[1].texformat());
- destroy_scan_bitmaps();
allocate_scan_bitmaps();
}