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OGL: Use coherent mapping on Qualcomm devices.

This commit is contained in:
degasus 2016-05-11 21:35:08 +02:00
parent 7517d126c8
commit bca0e06a95
3 changed files with 17 additions and 5 deletions
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13
Source/Core/VideoBackends/OGL/StreamBuffer.cpp
View File

@ -210,7 +210,7 @@ public:
class BufferStorage : public StreamBuffer
{
public:
BufferStorage(u32 type, u32 size) : StreamBuffer(type, size)
BufferStorage(u32 type, u32 size, bool _coherent = false) : StreamBuffer(type, size), coherent(_coherent)
{
CreateFences();
glBindBuffer(m_buffertype, m_buffer);
@ -219,9 +219,9 @@ public:
// COHERENT_BIT is set so we don't have to use a MemoryBarrier on write
// CLIENT_STORAGE_BIT is set since we access the buffer more frequently on the client side then server side
glBufferStorage(m_buffertype, m_size, nullptr,
GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | (coherent ? GL_MAP_COHERENT_BIT : 0));
m_pointer = (u8*)glMapBufferRange(m_buffertype, 0, m_size,
GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | (coherent ? GL_MAP_COHERENT_BIT : GL_MAP_FLUSH_EXPLICIT_BIT));
}
~BufferStorage()
@ -239,11 +239,13 @@ public:
void Unmap(u32 used_size) override
{
glFlushMappedBufferRange(m_buffertype, m_iterator, used_size);
if (!coherent)
glFlushMappedBufferRange(m_buffertype, m_iterator, used_size);
m_iterator += used_size;
}
u8* m_pointer;
const bool coherent;
};
/* --- AMD only ---
@ -377,10 +379,11 @@ std::unique_ptr<StreamBuffer> StreamBuffer::Create(u32 type, u32 size)
return std::make_unique<PinnedMemory>(type, size);
// buffer storage works well in most situations
bool coherent = DriverDetails::HasBug(DriverDetails::BUG_BROKENEXPLICITFLUSH);
if (g_ogl_config.bSupportsGLBufferStorage &&
!(DriverDetails::HasBug(DriverDetails::BUG_BROKENBUFFERSTORAGE) && type == GL_ARRAY_BUFFER) &&
!(DriverDetails::HasBug(DriverDetails::BUG_INTELBROKENBUFFERSTORAGE) && type == GL_ELEMENT_ARRAY_BUFFER))
return std::make_unique<BufferStorage>(type, size);
return std::make_unique<BufferStorage>(type, size, coherent);
// don't fall back to MapAnd* for Nvidia drivers
if (DriverDetails::HasBug(DriverDetails::BUG_BROKENUNSYNCMAPPING))

1
Source/Core/VideoCommon/DriverDetails.cpp
View File

@ -44,6 +44,7 @@ namespace DriverDetails
static BugInfo m_known_bugs[] = {
{OS_ALL, VENDOR_QUALCOMM, DRIVER_QUALCOMM, Family::UNKNOWN, BUG_BROKENBUFFERSTREAM, -1.0, -1.0, true},
{OS_ALL, VENDOR_QUALCOMM, DRIVER_QUALCOMM, Family::UNKNOWN, BUG_BROKENNEGATEDBOOLEAN,-1.0, -1.0, true},
{OS_ALL, VENDOR_QUALCOMM, DRIVER_QUALCOMM, Family::UNKNOWN, BUG_BROKENEXPLICITFLUSH, -1.0, -1.0, true},
{OS_ALL, VENDOR_ARM, DRIVER_ARM, Family::UNKNOWN, BUG_BROKENBUFFERSTREAM, -1.0, -1.0, true},
{OS_ALL, VENDOR_ARM, DRIVER_ARM, Family::UNKNOWN, BUG_BROKENVSYNC, -1.0, -1.0, true},
{OS_ALL, VENDOR_IMGTEC, DRIVER_IMGTEC, Family::UNKNOWN, BUG_BROKENBUFFERSTREAM, -1.0, -1.0, true},

8
Source/Core/VideoCommon/DriverDetails.h
View File

@ -176,6 +176,14 @@ namespace DriverDetails
// Mesa introduced geometry shader support for radeon and sandy bridge devices and failed to test it with us.
// Causes misrenderings on a large amount of things that draw lines.
BUG_BROKENGEOMETRYSHADERS,
// Bug: Explicit flush is very slow on Qualcomm
// Started Version: -1
// Ended Version: -1
// Our ARB_buffer_storage code uses explicit flush to avoid coherent mapping.
// Qualcomm seems to have lots of overhead on exlicit flushing, but the coherent mapping path is fine.
// So let's use coherent mapping there.
BUG_BROKENEXPLICITFLUSH,
};
// Initializes our internal vendor, device family, and driver version