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hle_ipc: Add Can(Read, Write)Buffer

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Allows us to test whether a buffer can be read from or written to memory
This commit is contained in:
Morph 2021-01-28 01:18:06 -05:00
parent 45b13c3037
commit 008afa5d59
2 changed files with 28 additions and 0 deletions
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22
src/core/hle/kernel/hle_ipc.cpp
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@ -338,6 +338,28 @@ std::size_t HLERequestContext::GetWriteBufferSize(std::size_t buffer_index) cons
return 0;
}
bool HLERequestContext::CanReadBuffer(std::size_t buffer_index) const {
const bool is_buffer_a{BufferDescriptorA().size() > buffer_index &&
BufferDescriptorA()[buffer_index].Size()};
if (is_buffer_a) {
return BufferDescriptorA().size() > buffer_index;
} else {
return BufferDescriptorX().size() > buffer_index;
}
}
bool HLERequestContext::CanWriteBuffer(std::size_t buffer_index) const {
const bool is_buffer_b{BufferDescriptorB().size() > buffer_index &&
BufferDescriptorB()[buffer_index].Size()};
if (is_buffer_b) {
return BufferDescriptorB().size() > buffer_index;
} else {
return BufferDescriptorC().size() > buffer_index;
}
}
std::string HLERequestContext::Description() const {
if (!command_header) {
return "No command header available";

6
src/core/hle/kernel/hle_ipc.h
View file

@ -207,6 +207,12 @@ public:
/// Helper function to get the size of the output buffer
std::size_t GetWriteBufferSize(std::size_t buffer_index = 0) const;
/// Helper function to test whether the input buffer at buffer_index can be read
bool CanReadBuffer(std::size_t buffer_index = 0) const;
/// Helper function to test whether the output buffer at buffer_index can be written
bool CanWriteBuffer(std::size_t buffer_index = 0) const;
template <typename T>
std::shared_ptr<T> GetCopyObject(std::size_t index) {
return DynamicObjectCast<T>(copy_objects.at(index));