Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 00:39:36 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

bufsprite: add length() getter

Browse Source
This commit is contained in:
hap 2022-11-19 13:56:34 +01:00
parent 027d23889f
commit 3d4405b395
2 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/devices/video/bufsprite.cpp
View File

@ -41,7 +41,7 @@ void buffered_spriteram_device<Type>::device_start()
{
if (m_spriteram)
{
m_buffered.resize(m_spriteram.bytes() / sizeof(Type));
m_buffered.resize(length());
save_item(NAME(m_buffered));
}
}

3
src/devices/video/bufsprite.h
View File

@ -42,13 +42,14 @@ public:
Type *live() const { return m_spriteram; }
Type *buffer() { return &m_buffered[0]; }
uint32_t bytes() const { return m_spriteram.bytes(); }
uint32_t length() const { return bytes() / sizeof(Type); }
// operations
Type *copy(uint32_t srcoffset = 0, uint32_t srclength = 0x7fffffff)
{
assert(m_spriteram != nullptr);
if (m_spriteram != nullptr)
memcpy(&m_buffered[0], m_spriteram + srcoffset, (std::min<size_t>)(srclength, m_spriteram.bytes() / sizeof(Type) - srcoffset) * sizeof(Type));
memcpy(&m_buffered[0], m_spriteram + srcoffset, (std::min<size_t>)(srclength, length() - srcoffset) * sizeof(Type));
return &m_buffered[0];
}