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make ReadBlockunsafe and WriteBlockunsafe, ignore invalid pages.

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This commit is contained in:
Fernando Sahmkow 2019-04-19 20:35:54 -04:00
parent d0082de82a
commit db4b2bc798
1 changed files with 12 additions and 4 deletions
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16
src/video_core/memory_manager.cpp
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@ -243,8 +243,13 @@ void MemoryManager::ReadBlockUnsafe(GPUVAddr src_addr, void* dest_buffer,
while (remaining_size > 0) {
const std::size_t copy_amount{
std::min(static_cast<std::size_t>(page_size) - page_offset, remaining_size)};
const u8* src_ptr{page_table.pointers[page_index] + page_offset};
std::memcpy(dest_buffer, src_ptr, copy_amount);
const u8* page_pointer = page_table.pointers[page_index];
if (page_pointer) {
const u8* src_ptr{page_pointer + page_offset};
std::memcpy(dest_buffer, src_ptr, copy_amount);
} else {
std::memset(dest_buffer, 0, copy_amount);
}
page_index++;
page_offset = 0;
dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount;
@ -288,8 +293,11 @@ void MemoryManager::WriteBlockUnsafe(GPUVAddr dest_addr, const void* src_buffer,
while (remaining_size > 0) {
const std::size_t copy_amount{
std::min(static_cast<std::size_t>(page_size) - page_offset, remaining_size)};
u8* dest_ptr{page_table.pointers[page_index] + page_offset};
std::memcpy(dest_ptr, src_buffer, copy_amount);
u8* page_pointer = page_table.pointers[page_index];
if (page_pointer) {
u8* dest_ptr{page_pointer + page_offset};
std::memcpy(dest_ptr, src_buffer, copy_amount);
}
page_index++;
page_offset = 0;
src_buffer = static_cast<const u8*>(src_buffer) + copy_amount;