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prevent crashing (nw)

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This commit is contained in:
Miodrag Milanovic 2016-07-22 11:18:43 +02:00
parent a9e89e4f17
commit b2ebca6189
1 changed files with 9 additions and 2 deletions
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11
src/emu/render.cpp
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@ -458,6 +458,8 @@ void render_texture::get_scaled(UINT32 dwidth, UINT32 dheight, render_texinfo &t
// are we scaler-free? if so, just return the source bitmap
if (m_scaler == nullptr || (m_bitmap != nullptr && swidth == dwidth && sheight == dheight))
{
if (m_bitmap == nullptr) return;
// add a reference and set up the source bitmap
primlist.add_reference(m_bitmap);
texinfo.base = m_bitmap->raw_pixptr(m_sbounds.min_y, m_sbounds.min_x);
@ -2355,7 +2357,7 @@ bool render_target::remove_clear_extent(const render_bounds &bounds)
INT32 *linelast;
// first entry of each line should always be negative
assert(ext[0] < 0.0f);
if (!(ext[0] < 0.0f)) goto abort;
y0 = y1;
y1 = y0 - ext[0];
@ -2487,7 +2489,11 @@ void render_target::add_clear_extents(render_primitive_list &list)
INT32 x0, x1 = 0;
// first entry should always be negative
assert(ext[0] < 0);
if (!(ext[0] < 0))
{
list.m_primlist.prepend_list(clearlist);
return;
}
y0 = y1;
y1 = y0 - ext[0];
@ -2744,6 +2750,7 @@ float render_manager::ui_aspect(render_container *rc)
if (aspect > 1.5f)
aspect = 1.5f;
if (isinf(aspect)) aspect = 1.0f;
return aspect;
}